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Diffstat (limited to 'ffmpeg/libavformat/movenc.c')
-rw-r--r--ffmpeg/libavformat/movenc.c4352
1 files changed, 0 insertions, 4352 deletions
diff --git a/ffmpeg/libavformat/movenc.c b/ffmpeg/libavformat/movenc.c
deleted file mode 100644
index a886ab0..0000000
--- a/ffmpeg/libavformat/movenc.c
+++ /dev/null
@@ -1,4352 +0,0 @@
-/*
- * MOV, 3GP, MP4 muxer
- * Copyright (c) 2003 Thomas Raivio
- * Copyright (c) 2004 Gildas Bazin <gbazin at videolan dot org>
- * Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * FFmpeg is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <stdint.h>
-
-#include "movenc.h"
-#include "avformat.h"
-#include "avio_internal.h"
-#include "riff.h"
-#include "avio.h"
-#include "isom.h"
-#include "avc.h"
-#include "libavcodec/get_bits.h"
-#include "libavcodec/put_bits.h"
-#include "libavcodec/vc1.h"
-#include "internal.h"
-#include "libavutil/avstring.h"
-#include "libavutil/intfloat.h"
-#include "libavutil/mathematics.h"
-#include "libavutil/opt.h"
-#include "libavutil/dict.h"
-#include "rtpenc.h"
-#include "mov_chan.h"
-
-#undef NDEBUG
-#include <assert.h>
-
-static const AVOption options[] = {
- { "movflags", "MOV muxer flags", offsetof(MOVMuxContext, flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
- { "rtphint", "Add RTP hint tracks", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_RTP_HINT}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
- { "moov_size", "maximum moov size so it can be placed at the begin", offsetof(MOVMuxContext, reserved_moov_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, 0 },
- { "empty_moov", "Make the initial moov atom empty (not supported by QuickTime)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_EMPTY_MOOV}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
- { "frag_keyframe", "Fragment at video keyframes", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FRAG_KEYFRAME}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
- { "separate_moof", "Write separate moof/mdat atoms for each track", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_SEPARATE_MOOF}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
- { "frag_custom", "Flush fragments on caller requests", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FRAG_CUSTOM}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
- { "isml", "Create a live smooth streaming feed (for pushing to a publishing point)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_ISML}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
- { "faststart", "Run a second pass to put the index (moov atom) at the beginning of the file", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FASTSTART}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
- { "omit_tfhd_offset", "Omit the base data offset in tfhd atoms", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_OMIT_TFHD_OFFSET}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
- FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags),
- { "skip_iods", "Skip writing iods atom.", offsetof(MOVMuxContext, iods_skip), AV_OPT_TYPE_INT, {.i64 = 1}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
- { "iods_audio_profile", "iods audio profile atom.", offsetof(MOVMuxContext, iods_audio_profile), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 255, AV_OPT_FLAG_ENCODING_PARAM},
- { "iods_video_profile", "iods video profile atom.", offsetof(MOVMuxContext, iods_video_profile), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 255, AV_OPT_FLAG_ENCODING_PARAM},
- { "frag_duration", "Maximum fragment duration", offsetof(MOVMuxContext, max_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
- { "min_frag_duration", "Minimum fragment duration", offsetof(MOVMuxContext, min_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
- { "frag_size", "Maximum fragment size", offsetof(MOVMuxContext, max_fragment_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
- { "ism_lookahead", "Number of lookahead entries for ISM files", offsetof(MOVMuxContext, ism_lookahead), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
- { "use_editlist", "use edit list", offsetof(MOVMuxContext, use_editlist), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM},
- { "video_track_timescale", "set timescale of all video tracks", offsetof(MOVMuxContext, video_track_timescale), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
- { NULL },
-};
-
-#define MOV_CLASS(flavor)\
-static const AVClass flavor ## _muxer_class = {\
- .class_name = #flavor " muxer",\
- .item_name = av_default_item_name,\
- .option = options,\
- .version = LIBAVUTIL_VERSION_INT,\
-};
-
-static int get_moov_size(AVFormatContext *s);
-
-//FIXME support 64 bit variant with wide placeholders
-static int64_t update_size(AVIOContext *pb, int64_t pos)
-{
- int64_t curpos = avio_tell(pb);
- avio_seek(pb, pos, SEEK_SET);
- avio_wb32(pb, curpos - pos); /* rewrite size */
- avio_seek(pb, curpos, SEEK_SET);
-
- return curpos - pos;
-}
-
-static int supports_edts(MOVMuxContext *mov)
-{
- // EDTS with fragments is tricky as we don't know the duration when its written
- return (mov->use_editlist<0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) || mov->use_editlist>0;
-}
-
-static int co64_required(const MOVTrack *track)
-{
- if (track->entry > 0 && track->cluster[track->entry - 1].pos + track->data_offset > UINT32_MAX)
- return 1;
- return 0;
-}
-
-/* Chunk offset atom */
-static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
-{
- int i;
- int mode64 = co64_required(track); // use 32 bit size variant if possible
- int64_t pos = avio_tell(pb);
- avio_wb32(pb, 0); /* size */
- if (mode64)
- ffio_wfourcc(pb, "co64");
- else
- ffio_wfourcc(pb, "stco");
- avio_wb32(pb, 0); /* version & flags */
- avio_wb32(pb, track->chunkCount); /* entry count */
- for (i = 0; i < track->entry; i++) {
- if (!track->cluster[i].chunkNum)
- continue;
- if (mode64 == 1)
- avio_wb64(pb, track->cluster[i].pos + track->data_offset);
- else
- avio_wb32(pb, track->cluster[i].pos + track->data_offset);
- }
- return update_size(pb, pos);
-}
-
-/* Sample size atom */
-static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)
-{
- int equalChunks = 1;
- int i, j, entries = 0, tst = -1, oldtst = -1;
-
- int64_t pos = avio_tell(pb);
- avio_wb32(pb, 0); /* size */
- ffio_wfourcc(pb, "stsz");
- avio_wb32(pb, 0); /* version & flags */
-
- for (i = 0; i < track->entry; i++) {
- tst = track->cluster[i].size / track->cluster[i].entries;
- if (oldtst != -1 && tst != oldtst)
- equalChunks = 0;
- oldtst = tst;
- entries += track->cluster[i].entries;
- }
- if (equalChunks && track->entry) {
- int sSize = track->entry ? track->cluster[0].size / track->cluster[0].entries : 0;
- sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0
- avio_wb32(pb, sSize); // sample size
- avio_wb32(pb, entries); // sample count
- } else {
- avio_wb32(pb, 0); // sample size
- avio_wb32(pb, entries); // sample count
- for (i = 0; i < track->entry; i++) {
- for (j = 0; j < track->cluster[i].entries; j++) {
- avio_wb32(pb, track->cluster[i].size /
- track->cluster[i].entries);
- }
- }
- }
- return update_size(pb, pos);
-}
-
-/* Sample to chunk atom */
-static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
-{
- int index = 0, oldval = -1, i;
- int64_t entryPos, curpos;
-
- int64_t pos = avio_tell(pb);
- avio_wb32(pb, 0); /* size */
- ffio_wfourcc(pb, "stsc");
- avio_wb32(pb, 0); // version & flags
- entryPos = avio_tell(pb);
- avio_wb32(pb, track->chunkCount); // entry count
- for (i = 0; i < track->entry; i++) {
- if (oldval != track->cluster[i].samples_in_chunk && track->cluster[i].chunkNum) {
- avio_wb32(pb, track->cluster[i].chunkNum); // first chunk
- avio_wb32(pb, track->cluster[i].samples_in_chunk); // samples per chunk
- avio_wb32(pb, 0x1); // sample description index
- oldval = track->cluster[i].samples_in_chunk;
- index++;
- }
- }
- curpos = avio_tell(pb);
- avio_seek(pb, entryPos, SEEK_SET);
- avio_wb32(pb, index); // rewrite size
- avio_seek(pb, curpos, SEEK_SET);
-
- return update_size(pb, pos);
-}
-
-/* Sync sample atom */
-static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)
-{
- int64_t curpos, entryPos;
- int i, index = 0;
- int64_t pos = avio_tell(pb);
- avio_wb32(pb, 0); // size
- ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps");
- avio_wb32(pb, 0); // version & flags
- entryPos = avio_tell(pb);
- avio_wb32(pb, track->entry); // entry count
- for (i = 0; i < track->entry; i++) {
- if (track->cluster[i].flags & flag) {
- avio_wb32(pb, i + 1);
- index++;
- }
- }
- curpos = avio_tell(pb);
- avio_seek(pb, entryPos, SEEK_SET);
- avio_wb32(pb, index); // rewrite size
- avio_seek(pb, curpos, SEEK_SET);
- return update_size(pb, pos);
-}
-
-static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)
-{
- avio_wb32(pb, 0x11); /* size */
- if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr");
- else ffio_wfourcc(pb, "damr");
- ffio_wfourcc(pb, "FFMP");
- avio_w8(pb, 0); /* decoder version */
-
- avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
- avio_w8(pb, 0x00); /* Mode change period (no restriction) */
- avio_w8(pb, 0x01); /* Frames per sample */
- return 0x11;
-}
-
-static int mov_write_ac3_tag(AVIOContext *pb, MOVTrack *track)
-{
- GetBitContext gbc;
- PutBitContext pbc;
- uint8_t buf[3];
- int fscod, bsid, bsmod, acmod, lfeon, frmsizecod;
-
- if (track->vos_len < 7)
- return -1;
-
- avio_wb32(pb, 11);
- ffio_wfourcc(pb, "dac3");
-
- init_get_bits(&gbc, track->vos_data + 4, (track->vos_len - 4) * 8);
- fscod = get_bits(&gbc, 2);
- frmsizecod = get_bits(&gbc, 6);
- bsid = get_bits(&gbc, 5);
- bsmod = get_bits(&gbc, 3);
- acmod = get_bits(&gbc, 3);
- if (acmod == 2) {
- skip_bits(&gbc, 2); // dsurmod
- } else {
- if ((acmod & 1) && acmod != 1)
- skip_bits(&gbc, 2); // cmixlev
- if (acmod & 4)
- skip_bits(&gbc, 2); // surmixlev
- }
- lfeon = get_bits1(&gbc);
-
- init_put_bits(&pbc, buf, sizeof(buf));
- put_bits(&pbc, 2, fscod);
- put_bits(&pbc, 5, bsid);
- put_bits(&pbc, 3, bsmod);
- put_bits(&pbc, 3, acmod);
- put_bits(&pbc, 1, lfeon);
- put_bits(&pbc, 5, frmsizecod >> 1); // bit_rate_code
- put_bits(&pbc, 5, 0); // reserved
-
- flush_put_bits(&pbc);
- avio_write(pb, buf, sizeof(buf));
-
- return 11;
-}
-
-/**
- * This function writes extradata "as is".
- * Extradata must be formatted like a valid atom (with size and tag).
- */
-static int mov_write_extradata_tag(AVIOContext *pb, MOVTrack *track)
-{
- avio_write(pb, track->enc->extradata, track->enc->extradata_size);
- return track->enc->extradata_size;
-}
-
-static int mov_write_enda_tag(AVIOContext *pb)
-{
- avio_wb32(pb, 10);
- ffio_wfourcc(pb, "enda");
- avio_wb16(pb, 1); /* little endian */
- return 10;
-}
-
-static int mov_write_enda_tag_be(AVIOContext *pb)
-{
- avio_wb32(pb, 10);
- ffio_wfourcc(pb, "enda");
- avio_wb16(pb, 0); /* big endian */
- return 10;
-}
-
-static void put_descr(AVIOContext *pb, int tag, unsigned int size)
-{
- int i = 3;
- avio_w8(pb, tag);
- for (; i > 0; i--)
- avio_w8(pb, (size >> (7 * i)) | 0x80);
- avio_w8(pb, size & 0x7F);
-}
-
-static unsigned compute_avg_bitrate(MOVTrack *track)
-{
- uint64_t size = 0;
- int i;
- if (!track->track_duration)
- return 0;
- for (i = 0; i < track->entry; i++)
- size += track->cluster[i].size;
- return size * 8 * track->timescale / track->track_duration;
-}
-
-static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
-{
- int64_t pos = avio_tell(pb);
- int decoder_specific_info_len = track->vos_len ? 5 + track->vos_len : 0;
- unsigned avg_bitrate;
-
- avio_wb32(pb, 0); // size
- ffio_wfourcc(pb, "esds");
- avio_wb32(pb, 0); // Version
-
- // ES descriptor
- put_descr(pb, 0x03, 3 + 5+13 + decoder_specific_info_len + 5+1);
- avio_wb16(pb, track->track_id);
- avio_w8(pb, 0x00); // flags (= no flags)
-
- // DecoderConfig descriptor
- put_descr(pb, 0x04, 13 + decoder_specific_info_len);
-
- // Object type indication
- if ((track->enc->codec_id == AV_CODEC_ID_MP2 ||
- track->enc->codec_id == AV_CODEC_ID_MP3) &&
- track->enc->sample_rate > 24000)
- avio_w8(pb, 0x6B); // 11172-3
- else
- avio_w8(pb, ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id));
-
- // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
- // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)
- if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
- avio_w8(pb, 0x15); // flags (= Audiostream)
- else
- avio_w8(pb, 0x11); // flags (= Visualstream)
-
- avio_wb24(pb, track->enc->rc_buffer_size >> 3); // Buffersize DB
-
- avg_bitrate = compute_avg_bitrate(track);
- // maxbitrate (FIXME should be max rate in any 1 sec window)
- avio_wb32(pb, FFMAX3(track->enc->bit_rate, track->enc->rc_max_rate, avg_bitrate));
- avio_wb32(pb, avg_bitrate);
-
- if (track->vos_len) {
- // DecoderSpecific info descriptor
- put_descr(pb, 0x05, track->vos_len);
- avio_write(pb, track->vos_data, track->vos_len);
- }
-
- // SL descriptor
- put_descr(pb, 0x06, 1);
- avio_w8(pb, 0x02);
- return update_size(pb, pos);
-}
-
-static int mov_pcm_le_gt16(enum AVCodecID codec_id)
-{
- return codec_id == AV_CODEC_ID_PCM_S24LE ||
- codec_id == AV_CODEC_ID_PCM_S32LE ||
- codec_id == AV_CODEC_ID_PCM_F32LE ||
- codec_id == AV_CODEC_ID_PCM_F64LE;
-}
-
-static int mov_pcm_be_gt16(enum AVCodecID codec_id)
-{
- return codec_id == AV_CODEC_ID_PCM_S24BE ||
- codec_id == AV_CODEC_ID_PCM_S32BE ||
- codec_id == AV_CODEC_ID_PCM_F32BE ||
- codec_id == AV_CODEC_ID_PCM_F64BE;
-}
-
-static int mov_write_ms_tag(AVIOContext *pb, MOVTrack *track)
-{
- int64_t pos = avio_tell(pb);
- avio_wb32(pb, 0);
- avio_wl32(pb, track->tag); // store it byteswapped
- track->enc->codec_tag = av_bswap16(track->tag >> 16);
- ff_put_wav_header(pb, track->enc);
- return update_size(pb, pos);
-}
-
-static int mov_write_wfex_tag(AVIOContext *pb, MOVTrack *track)
-{
- int64_t pos = avio_tell(pb);
- avio_wb32(pb, 0);
- ffio_wfourcc(pb, "wfex");
- ff_put_wav_header(pb, track->enc);
- return update_size(pb, pos);
-}
-
-static int mov_write_chan_tag(AVIOContext *pb, MOVTrack *track)
-{
- uint32_t layout_tag, bitmap;
- int64_t pos = avio_tell(pb);
-
- layout_tag = ff_mov_get_channel_layout_tag(track->enc->codec_id,
- track->enc->channel_layout,
- &bitmap);
- if (!layout_tag) {
- av_log(track->enc, AV_LOG_WARNING, "not writing 'chan' tag due to "
- "lack of channel information\n");
- return 0;
- }
-
- avio_wb32(pb, 0); // Size
- ffio_wfourcc(pb, "chan"); // Type
- avio_w8(pb, 0); // Version
- avio_wb24(pb, 0); // Flags
- avio_wb32(pb, layout_tag); // mChannelLayoutTag
- avio_wb32(pb, bitmap); // mChannelBitmap
- avio_wb32(pb, 0); // mNumberChannelDescriptions
-
- return update_size(pb, pos);
-}
-
-static int mov_write_wave_tag(AVIOContext *pb, MOVTrack *track)
-{
- int64_t pos = avio_tell(pb);
-
- avio_wb32(pb, 0); /* size */
- ffio_wfourcc(pb, "wave");
-
- if (track->enc->codec_id != AV_CODEC_ID_QDM2) {
- avio_wb32(pb, 12); /* size */
- ffio_wfourcc(pb, "frma");
- avio_wl32(pb, track->tag);
- }
-
- if (track->enc->codec_id == AV_CODEC_ID_AAC) {
- /* useless atom needed by mplayer, ipod, not needed by quicktime */
- avio_wb32(pb, 12); /* size */
- ffio_wfourcc(pb, "mp4a");
- avio_wb32(pb, 0);
- mov_write_esds_tag(pb, track);
- } else if (mov_pcm_le_gt16(track->enc->codec_id)) {
- mov_write_enda_tag(pb);
- } else if (mov_pcm_be_gt16(track->enc->codec_id)) {
- mov_write_enda_tag_be(pb);
- } else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB) {
- mov_write_amr_tag(pb, track);
- } else if (track->enc->codec_id == AV_CODEC_ID_AC3) {
- mov_write_ac3_tag(pb, track);
- } else if (track->enc->codec_id == AV_CODEC_ID_ALAC ||
- track->enc->codec_id == AV_CODEC_ID_QDM2) {
- mov_write_extradata_tag(pb, track);
- } else if (track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
- track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
- mov_write_ms_tag(pb, track);
- }
-
- avio_wb32(pb, 8); /* size */
- avio_wb32(pb, 0); /* null tag */
-
- return update_size(pb, pos);
-}
-
-static int mov_write_dvc1_structs(MOVTrack *track, uint8_t *buf)
-{
- uint8_t *unescaped;
- const uint8_t *start, *next, *end = track->vos_data + track->vos_len;
- int unescaped_size, seq_found = 0;
- int level = 0, interlace = 0;
- int packet_seq = track->vc1_info.packet_seq;
- int packet_entry = track->vc1_info.packet_entry;
- int slices = track->vc1_info.slices;
- PutBitContext pbc;
-
- if (track->start_dts == AV_NOPTS_VALUE) {
- /* No packets written yet, vc1_info isn't authoritative yet. */
- /* Assume inline sequence and entry headers. This will be
- * overwritten at the end if the file is seekable. */
- packet_seq = packet_entry = 1;
- }
-
- unescaped = av_mallocz(track->vos_len + FF_INPUT_BUFFER_PADDING_SIZE);
- if (!unescaped)
- return AVERROR(ENOMEM);
- start = find_next_marker(track->vos_data, end);
- for (next = start; next < end; start = next) {
- GetBitContext gb;
- int size;
- next = find_next_marker(start + 4, end);
- size = next - start - 4;
- if (size <= 0)
- continue;
- unescaped_size = vc1_unescape_buffer(start + 4, size, unescaped);
- init_get_bits(&gb, unescaped, 8 * unescaped_size);
- if (AV_RB32(start) == VC1_CODE_SEQHDR) {
- int profile = get_bits(&gb, 2);
- if (profile != PROFILE_ADVANCED) {
- av_free(unescaped);
- return AVERROR(ENOSYS);
- }
- seq_found = 1;
- level = get_bits(&gb, 3);
- /* chromaformat, frmrtq_postproc, bitrtq_postproc, postprocflag,
- * width, height */
- skip_bits_long(&gb, 2 + 3 + 5 + 1 + 2*12);
- skip_bits(&gb, 1); /* broadcast */
- interlace = get_bits1(&gb);
- skip_bits(&gb, 4); /* tfcntrflag, finterpflag, reserved, psf */
- }
- }
- if (!seq_found) {
- av_free(unescaped);
- return AVERROR(ENOSYS);
- }
-
- init_put_bits(&pbc, buf, 7);
- /* VC1DecSpecStruc */
- put_bits(&pbc, 4, 12); /* profile - advanced */
- put_bits(&pbc, 3, level);
- put_bits(&pbc, 1, 0); /* reserved */
- /* VC1AdvDecSpecStruc */
- put_bits(&pbc, 3, level);
- put_bits(&pbc, 1, 0); /* cbr */
- put_bits(&pbc, 6, 0); /* reserved */
- put_bits(&pbc, 1, !interlace); /* no interlace */
- put_bits(&pbc, 1, !packet_seq); /* no multiple seq */
- put_bits(&pbc, 1, !packet_entry); /* no multiple entry */
- put_bits(&pbc, 1, !slices); /* no slice code */
- put_bits(&pbc, 1, 0); /* no bframe */
- put_bits(&pbc, 1, 0); /* reserved */
- put_bits32(&pbc, track->enc->time_base.den); /* framerate */
- flush_put_bits(&pbc);
-
- av_free(unescaped);
-
- return 0;
-}
-
-static int mov_write_dvc1_tag(AVIOContext *pb, MOVTrack *track)
-{
- uint8_t buf[7] = { 0 };
- int ret;
-
- if ((ret = mov_write_dvc1_structs(track, buf)) < 0)
- return ret;
-
- avio_wb32(pb, track->vos_len + 8 + sizeof(buf));
- ffio_wfourcc(pb, "dvc1");
- track->vc1_info.struct_offset = avio_tell(pb);
- avio_write(pb, buf, sizeof(buf));
- avio_write(pb, track->vos_data, track->vos_len);
-
- return 0;
-}
-
-static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
-{
- avio_wb32(pb, track->vos_len + 8);
- ffio_wfourcc(pb, "glbl");
- avio_write(pb, track->vos_data, track->vos_len);
- return 8 + track->vos_len;
-}
-
-/**
- * Compute flags for 'lpcm' tag.
- * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
- */
-static int mov_get_lpcm_flags(enum AVCodecID codec_id)
-{
- switch (codec_id) {
- case AV_CODEC_ID_PCM_F32BE:
- case AV_CODEC_ID_PCM_F64BE:
- return 11;
- case AV_CODEC_ID_PCM_F32LE:
- case AV_CODEC_ID_PCM_F64LE:
- return 9;
- case AV_CODEC_ID_PCM_U8:
- return 10;
- case AV_CODEC_ID_PCM_S16BE:
- case AV_CODEC_ID_PCM_S24BE:
- case AV_CODEC_ID_PCM_S32BE:
- return 14;
- case AV_CODEC_ID_PCM_S8:
- case AV_CODEC_ID_PCM_S16LE:
- case AV_CODEC_ID_PCM_S24LE:
- case AV_CODEC_ID_PCM_S32LE:
- return 12;
- default:
- return 0;
- }
-}
-
-static int get_cluster_duration(MOVTrack *track, int cluster_idx)
-{
- int64_t next_dts;
-
- if (cluster_idx >= track->entry)
- return 0;
-
- if (cluster_idx + 1 == track->entry)
- next_dts = track->track_duration + track->start_dts;
- else
- next_dts = track->cluster[cluster_idx + 1].dts;
-
- return next_dts - track->cluster[cluster_idx].dts;
-}
-
-static int get_samples_per_packet(MOVTrack *track)
-{
- int i, first_duration;
-
-// return track->enc->frame_size;
-
- /* use 1 for raw PCM */
- if (!track->audio_vbr)
- return 1;
-
- /* check to see if duration is constant for all clusters */
- if (!track->entry)
- return 0;
- first_duration = get_cluster_duration(track, 0);
- for (i = 1; i < track->entry; i++) {
- if (get_cluster_duration(track, i) != first_duration)
- return 0;
- }
- return first_duration;
-}
-
-static int mov_write_audio_tag(AVIOContext *pb, MOVTrack *track)
-{
- int64_t pos = avio_tell(pb);
- int version = 0;
- uint32_t tag = track->tag;
-
- if (track->mode == MODE_MOV) {
- if (track->timescale > UINT16_MAX) {
- if (mov_get_lpcm_flags(track->enc->codec_id))
- tag = AV_RL32("lpcm");
- version = 2;
- } else if (track->audio_vbr || mov_pcm_le_gt16(track->enc->codec_id) ||
- mov_pcm_be_gt16(track->enc->codec_id) ||
- track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
- track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
- track->enc->codec_id == AV_CODEC_ID_QDM2) {
- version = 1;
- }
- }
-
- avio_wb32(pb, 0); /* size */
- avio_wl32(pb, tag); // store it byteswapped
- avio_wb32(pb, 0); /* Reserved */
- avio_wb16(pb, 0); /* Reserved */
- avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */
-
- /* SoundDescription */
- avio_wb16(pb, version); /* Version */
- avio_wb16(pb, 0); /* Revision level */
- avio_wb32(pb, 0); /* Reserved */
-
- if (version == 2) {
- avio_wb16(pb, 3);
- avio_wb16(pb, 16);
- avio_wb16(pb, 0xfffe);
- avio_wb16(pb, 0);
- avio_wb32(pb, 0x00010000);
- avio_wb32(pb, 72);
- avio_wb64(pb, av_double2int(track->enc->sample_rate));
- avio_wb32(pb, track->enc->channels);
- avio_wb32(pb, 0x7F000000);
- avio_wb32(pb, av_get_bits_per_sample(track->enc->codec_id));
- avio_wb32(pb, mov_get_lpcm_flags(track->enc->codec_id));
- avio_wb32(pb, track->sample_size);
- avio_wb32(pb, get_samples_per_packet(track));
- } else {
- if (track->mode == MODE_MOV) {
- avio_wb16(pb, track->enc->channels);
- if (track->enc->codec_id == AV_CODEC_ID_PCM_U8 ||
- track->enc->codec_id == AV_CODEC_ID_PCM_S8)
- avio_wb16(pb, 8); /* bits per sample */
- else
- avio_wb16(pb, 16);
- avio_wb16(pb, track->audio_vbr ? -2 : 0); /* compression ID */
- } else { /* reserved for mp4/3gp */
- avio_wb16(pb, 2);
- avio_wb16(pb, 16);
- avio_wb16(pb, 0);
- }
-
- avio_wb16(pb, 0); /* packet size (= 0) */
- avio_wb16(pb, track->enc->sample_rate <= UINT16_MAX ?
- track->enc->sample_rate : 0);
- avio_wb16(pb, 0); /* Reserved */
- }
-
- if (version == 1) { /* SoundDescription V1 extended info */
- if (mov_pcm_le_gt16(track->enc->codec_id) ||
- mov_pcm_be_gt16(track->enc->codec_id))
- avio_wb32(pb, 1); /* must be 1 for uncompressed formats */
- else
- avio_wb32(pb, track->enc->frame_size); /* Samples per packet */
- avio_wb32(pb, track->sample_size / track->enc->channels); /* Bytes per packet */
- avio_wb32(pb, track->sample_size); /* Bytes per frame */
- avio_wb32(pb, 2); /* Bytes per sample */
- }
-
- if (track->mode == MODE_MOV &&
- (track->enc->codec_id == AV_CODEC_ID_AAC ||
- track->enc->codec_id == AV_CODEC_ID_AC3 ||
- track->enc->codec_id == AV_CODEC_ID_AMR_NB ||
- track->enc->codec_id == AV_CODEC_ID_ALAC ||
- track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
- track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
- track->enc->codec_id == AV_CODEC_ID_QDM2 ||
- (mov_pcm_le_gt16(track->enc->codec_id) && version==1) ||
- (mov_pcm_be_gt16(track->enc->codec_id) && version==1)))
- mov_write_wave_tag(pb, track);
- else if (track->tag == MKTAG('m','p','4','a'))
- mov_write_esds_tag(pb, track);
- else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB)
- mov_write_amr_tag(pb, track);
- else if (track->enc->codec_id == AV_CODEC_ID_AC3)
- mov_write_ac3_tag(pb, track);
- else if (track->enc->codec_id == AV_CODEC_ID_ALAC)
- mov_write_extradata_tag(pb, track);
- else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO)
- mov_write_wfex_tag(pb, track);
- else if (track->vos_len > 0)
- mov_write_glbl_tag(pb, track);
-
- if (track->mode == MODE_MOV && track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
- mov_write_chan_tag(pb, track);
-
- return update_size(pb, pos);
-}
-
-static int mov_write_d263_tag(AVIOContext *pb)
-{
- avio_wb32(pb, 0xf); /* size */
- ffio_wfourcc(pb, "d263");
- ffio_wfourcc(pb, "FFMP");
- avio_w8(pb, 0); /* decoder version */
- /* FIXME use AVCodecContext level/profile, when encoder will set values */
- avio_w8(pb, 0xa); /* level */
- avio_w8(pb, 0); /* profile */
- return 0xf;
-}
-
-static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
-{
- int64_t pos = avio_tell(pb);
-
- avio_wb32(pb, 0);
- ffio_wfourcc(pb, "avcC");
- ff_isom_write_avcc(pb, track->vos_data, track->vos_len);
- return update_size(pb, pos);
-}
-
-/* also used by all avid codecs (dv, imx, meridien) and their variants */
-static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
-{
- int i;
- avio_wb32(pb, 24); /* size */
- ffio_wfourcc(pb, "ACLR");
- ffio_wfourcc(pb, "ACLR");
- ffio_wfourcc(pb, "0001");
- avio_wb32(pb, 2); /* yuv range: full 1 / normal 2 */
- avio_wb32(pb, 0); /* unknown */
-
- avio_wb32(pb, 24); /* size */
- ffio_wfourcc(pb, "APRG");
- ffio_wfourcc(pb, "APRG");
- ffio_wfourcc(pb, "0001");
- avio_wb32(pb, 1); /* unknown */
- avio_wb32(pb, 0); /* unknown */
-
- avio_wb32(pb, 120); /* size */
- ffio_wfourcc(pb, "ARES");
- ffio_wfourcc(pb, "ARES");
- ffio_wfourcc(pb, "0001");
- avio_wb32(pb, AV_RB32(track->vos_data + 0x28)); /* dnxhd cid, some id ? */
- avio_wb32(pb, track->enc->width);
- /* values below are based on samples created with quicktime and avid codecs */
- if (track->vos_data[5] & 2) { // interlaced
- avio_wb32(pb, track->enc->height / 2);
- avio_wb32(pb, 2); /* unknown */
- avio_wb32(pb, 0); /* unknown */
- avio_wb32(pb, 4); /* unknown */
- } else {
- avio_wb32(pb, track->enc->height);
- avio_wb32(pb, 1); /* unknown */
- avio_wb32(pb, 0); /* unknown */
- if (track->enc->height == 1080)
- avio_wb32(pb, 5); /* unknown */
- else
- avio_wb32(pb, 6); /* unknown */
- }
- /* padding */
- for (i = 0; i < 10; i++)
- avio_wb64(pb, 0);
-
- /* extra padding for stsd needed */
- avio_wb32(pb, 0);
- return 0;
-}
-
-static int mp4_get_codec_tag(AVFormatContext *s, MOVTrack *track)
-{
- int tag = track->enc->codec_tag;
-
- if (!ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id))
- return 0;
-
- if (track->enc->codec_id == AV_CODEC_ID_H264) tag = MKTAG('a','v','c','1');
- else if (track->enc->codec_id == AV_CODEC_ID_AC3) tag = MKTAG('a','c','-','3');
- else if (track->enc->codec_id == AV_CODEC_ID_DIRAC) tag = MKTAG('d','r','a','c');
- else if (track->enc->codec_id == AV_CODEC_ID_MOV_TEXT) tag = MKTAG('t','x','3','g');
- else if (track->enc->codec_id == AV_CODEC_ID_VC1) tag = MKTAG('v','c','-','1');
- else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) tag = MKTAG('m','p','4','v');
- else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) tag = MKTAG('m','p','4','a');
-
- return tag;
-}
-
-static const AVCodecTag codec_ipod_tags[] = {
- { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
- { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
- { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
- { AV_CODEC_ID_ALAC, MKTAG('a','l','a','c') },
- { AV_CODEC_ID_AC3, MKTAG('a','c','-','3') },
- { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
- { AV_CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
- { AV_CODEC_ID_NONE, 0 },
-};
-
-static int ipod_get_codec_tag(AVFormatContext *s, MOVTrack *track)
-{
- int tag = track->enc->codec_tag;
-
- // keep original tag for subs, ipod supports both formats
- if (!(track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE &&
- (tag == MKTAG('t', 'x', '3', 'g') ||
- tag == MKTAG('t', 'e', 'x', 't'))))
- tag = ff_codec_get_tag(codec_ipod_tags, track->enc->codec_id);
-
- if (!av_match_ext(s->filename, "m4a") && !av_match_ext(s->filename, "m4v"))
- av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a nor .m4v "
- "Quicktime/Ipod might not play the file\n");
-
- return tag;
-}
-
-static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track)
-{
- int tag;
-
- if (track->enc->width == 720) { /* SD */
- if (track->enc->height == 480) { /* NTSC */
- if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
- else tag = MKTAG('d','v','c',' ');
- }else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
- else if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
- else tag = MKTAG('d','v','p','p');
- } else if (track->enc->height == 720) { /* HD 720 line */
- if (track->enc->time_base.den == 50) tag = MKTAG('d','v','h','q');
- else tag = MKTAG('d','v','h','p');
- } else if (track->enc->height == 1080) { /* HD 1080 line */
- if (track->enc->time_base.den == 25) tag = MKTAG('d','v','h','5');
- else tag = MKTAG('d','v','h','6');
- } else {
- av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
- return 0;
- }
-
- return tag;
-}
-
-static AVRational find_fps(AVFormatContext *s, AVStream *st)
-{
- AVRational rate = {st->codec->time_base.den, st->codec->time_base.num};
- /* if the codec time base makes no sense, try to fallback on stream frame rate */
- if (av_timecode_check_frame_rate(rate) < 0) {
- av_log(s, AV_LOG_DEBUG, "timecode: tbc=%d/%d invalid, fallback on %d/%d\n",
- rate.num, rate.den, st->avg_frame_rate.num, st->avg_frame_rate.den);
- rate = st->avg_frame_rate;
- }
-
- return rate;
-}
-
-static int mov_get_mpeg2_xdcam_codec_tag(AVFormatContext *s, MOVTrack *track)
-{
- int tag = MKTAG('m', '2', 'v', '1'); //fallback tag
- int interlaced = track->enc->field_order > AV_FIELD_PROGRESSIVE;
- AVStream *st = track->st;
- int rate = av_q2d(find_fps(s, st));
-
- if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) {
- if (track->enc->width == 1280 && track->enc->height == 720) {
- if (!interlaced) {
- if (rate == 24) tag = MKTAG('x','d','v','4');
- else if (rate == 25) tag = MKTAG('x','d','v','5');
- else if (rate == 30) tag = MKTAG('x','d','v','1');
- else if (rate == 50) tag = MKTAG('x','d','v','a');
- else if (rate == 60) tag = MKTAG('x','d','v','9');
- }
- } else if (track->enc->width == 1440 && track->enc->height == 1080) {
- if (!interlaced) {
- if (rate == 24) tag = MKTAG('x','d','v','6');
- else if (rate == 25) tag = MKTAG('x','d','v','7');
- else if (rate == 30) tag = MKTAG('x','d','v','8');
- } else {
- if (rate == 25) tag = MKTAG('x','d','v','3');
- else if (rate == 30) tag = MKTAG('x','d','v','2');
- }
- } else if (track->enc->width == 1920 && track->enc->height == 1080) {
- if (!interlaced) {
- if (rate == 24) tag = MKTAG('x','d','v','d');
- else if (rate == 25) tag = MKTAG('x','d','v','e');
- else if (rate == 30) tag = MKTAG('x','d','v','f');
- } else {
- if (rate == 25) tag = MKTAG('x','d','v','c');
- else if (rate == 30) tag = MKTAG('x','d','v','b');
- }
- }
- } else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) {
- if (track->enc->width == 1280 && track->enc->height == 720) {
- if (!interlaced) {
- if (rate == 24) tag = MKTAG('x','d','5','4');
- else if (rate == 25) tag = MKTAG('x','d','5','5');
- else if (rate == 30) tag = MKTAG('x','d','5','1');
- else if (rate == 50) tag = MKTAG('x','d','5','a');
- else if (rate == 60) tag = MKTAG('x','d','5','9');
- }
- } else if (track->enc->width == 1920 && track->enc->height == 1080) {
- if (!interlaced) {
- if (rate == 24) tag = MKTAG('x','d','5','d');
- else if (rate == 25) tag = MKTAG('x','d','5','e');
- else if (rate == 30) tag = MKTAG('x','d','5','f');
- } else {
- if (rate == 25) tag = MKTAG('x','d','5','c');
- else if (rate == 30) tag = MKTAG('x','d','5','b');
- }
- }
- }
-
- return tag;
-}
-
-static const struct {
- enum AVPixelFormat pix_fmt;
- uint32_t tag;
- unsigned bps;
-} mov_pix_fmt_tags[] = {
- { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','2'), 0 },
- { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
- { AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
- { AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
- { AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
- { AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
- { AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
- { AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
- { AV_PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
- { AV_PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
- { AV_PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
- { AV_PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
- { AV_PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
- { AV_PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
- { AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
-};
-
-static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track)
-{
- int tag = track->enc->codec_tag;
- int i;
-
- for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
- if (track->enc->pix_fmt == mov_pix_fmt_tags[i].pix_fmt) {
- tag = mov_pix_fmt_tags[i].tag;
- track->enc->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
- if (track->enc->codec_tag == mov_pix_fmt_tags[i].tag)
- break;
- }
- }
-
- return tag;
-}
-
-static int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
-{
- int tag = track->enc->codec_tag;
-
- if (!tag || (track->enc->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
- (track->enc->codec_id == AV_CODEC_ID_DVVIDEO ||
- track->enc->codec_id == AV_CODEC_ID_RAWVIDEO ||
- track->enc->codec_id == AV_CODEC_ID_H263 ||
- track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO ||
- av_get_bits_per_sample(track->enc->codec_id)))) { // pcm audio
- if (track->enc->codec_id == AV_CODEC_ID_DVVIDEO)
- tag = mov_get_dv_codec_tag(s, track);
- else if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO)
- tag = mov_get_rawvideo_codec_tag(s, track);
- else if (track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO)
- tag = mov_get_mpeg2_xdcam_codec_tag(s, track);
- else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
- tag = ff_codec_get_tag(ff_codec_movvideo_tags, track->enc->codec_id);
- if (!tag) { // if no mac fcc found, try with Microsoft tags
- tag = ff_codec_get_tag(ff_codec_bmp_tags, track->enc->codec_id);
- if (tag)
- av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
- "the file may be unplayable!\n");
- }
- } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
- tag = ff_codec_get_tag(ff_codec_movaudio_tags, track->enc->codec_id);
- if (!tag) { // if no mac fcc found, try with Microsoft tags
- int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->enc->codec_id);
- if (ms_tag) {
- tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
- av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
- "the file may be unplayable!\n");
- }
- }
- } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
- tag = ff_codec_get_tag(ff_codec_movsubtitle_tags, track->enc->codec_id);
- }
-
- return tag;
-}
-
-static const AVCodecTag codec_3gp_tags[] = {
- { AV_CODEC_ID_H263, MKTAG('s','2','6','3') },
- { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
- { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
- { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
- { AV_CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
- { AV_CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
- { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
- { AV_CODEC_ID_NONE, 0 },
-};
-
-static const AVCodecTag codec_f4v_tags[] = { // XXX: add GIF/PNG/JPEG?
- { AV_CODEC_ID_MP3, MKTAG('.','m','p','3') },
- { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
- { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
- { AV_CODEC_ID_VP6A, MKTAG('V','P','6','A') },
- { AV_CODEC_ID_VP6F, MKTAG('V','P','6','F') },
- { AV_CODEC_ID_NONE, 0 },
-};
-
-static int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track)
-{
- int tag;
-
- if (track->mode == MODE_MP4 || track->mode == MODE_PSP)
- tag = mp4_get_codec_tag(s, track);
- else if (track->mode == MODE_ISM) {
- tag = mp4_get_codec_tag(s, track);
- if (!tag && track->enc->codec_id == AV_CODEC_ID_WMAPRO)
- tag = MKTAG('w', 'm', 'a', ' ');
- } else if (track->mode == MODE_IPOD)
- tag = ipod_get_codec_tag(s, track);
- else if (track->mode & MODE_3GP)
- tag = ff_codec_get_tag(codec_3gp_tags, track->enc->codec_id);
- else if (track->mode == MODE_F4V)
- tag = ff_codec_get_tag(codec_f4v_tags, track->enc->codec_id);
- else
- tag = mov_get_codec_tag(s, track);
-
- return tag;
-}
-
-/** Write uuid atom.
- * Needed to make file play in iPods running newest firmware
- * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
- */
-static int mov_write_uuid_tag_ipod(AVIOContext *pb)
-{
- avio_wb32(pb, 28);
- ffio_wfourcc(pb, "uuid");
- avio_wb32(pb, 0x6b6840f2);
- avio_wb32(pb, 0x5f244fc5);
- avio_wb32(pb, 0xba39a51b);
- avio_wb32(pb, 0xcf0323f3);
- avio_wb32(pb, 0x0);
- return 28;
-}
-
-static const uint16_t fiel_data[] = {
- 0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
-};
-
-static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track)
-{
- unsigned mov_field_order = 0;
- if (track->enc->field_order < FF_ARRAY_ELEMS(fiel_data))
- mov_field_order = fiel_data[track->enc->field_order];
- else
- return 0;
- avio_wb32(pb, 10);
- ffio_wfourcc(pb, "fiel");
- avio_wb16(pb, mov_field_order);
- return 10;
-}
-
-static int mov_write_subtitle_tag(AVIOContext *pb, MOVTrack *track)
-{
- int64_t pos = avio_tell(pb);
- avio_wb32(pb, 0); /* size */
- avio_wl32(pb, track->tag); // store it byteswapped
- avio_wb32(pb, 0); /* Reserved */
- avio_wb16(pb, 0); /* Reserved */
- avio_wb16(pb, 1); /* Data-reference index */
-
- if (track->enc->extradata_size)
- avio_write(pb, track->enc->extradata, track->enc->extradata_size);
-
- return update_size(pb, pos);
-}
-
-static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
-{
- AVRational sar;
- av_reduce(&sar.num, &sar.den, track->enc->sample_aspect_ratio.num,
- track->enc->sample_aspect_ratio.den, INT_MAX);
-
- avio_wb32(pb, 16);
- ffio_wfourcc(pb, "pasp");
- avio_wb32(pb, sar.num);
- avio_wb32(pb, sar.den);
- return 16;
-}
-
-static void find_compressor(char * compressor_name, int len, MOVTrack *track)
-{
- int xdcam_res = (track->enc->width == 1280 && track->enc->height == 720)
- || (track->enc->width == 1440 && track->enc->height == 1080)
- || (track->enc->width == 1920 && track->enc->height == 1080);
-
- if (track->mode == MODE_MOV && track->enc->codec && track->enc->codec->name) {
- av_strlcpy(compressor_name, track->enc->codec->name, 32);
- } else if (track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO && xdcam_res) {
- int interlaced = track->enc->field_order > AV_FIELD_PROGRESSIVE;
- AVStream *st = track->st;
- int rate = av_q2d(find_fps(NULL, st));
- av_strlcatf(compressor_name, len, "XDCAM");
- if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) {
- av_strlcatf(compressor_name, len, " HD422");
- } else if(track->enc->width == 1440) {
- av_strlcatf(compressor_name, len, " HD");
- } else
- av_strlcatf(compressor_name, len, " EX");
-
- av_strlcatf(compressor_name, len, " %d%c", track->enc->height, interlaced ? 'i' : 'p');
-
- av_strlcatf(compressor_name, len, "%d", rate * (interlaced + 1));
- }
-}
-
-static int mov_write_video_tag(AVIOContext *pb, MOVTrack *track)
-{
- int64_t pos = avio_tell(pb);
- char compressor_name[32] = { 0 };
-
- avio_wb32(pb, 0); /* size */
- avio_wl32(pb, track->tag); // store it byteswapped
- avio_wb32(pb, 0); /* Reserved */
- avio_wb16(pb, 0); /* Reserved */
- avio_wb16(pb, 1); /* Data-reference index */
-
- avio_wb16(pb, 0); /* Codec stream version */
- avio_wb16(pb, 0); /* Codec stream revision (=0) */
- if (track->mode == MODE_MOV) {
- ffio_wfourcc(pb, "FFMP"); /* Vendor */
- if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO) {
- avio_wb32(pb, 0); /* Temporal Quality */
- avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
- } else {
- avio_wb32(pb, 0x200); /* Temporal Quality = normal */
- avio_wb32(pb, 0x200); /* Spatial Quality = normal */
- }
- } else {
- avio_wb32(pb, 0); /* Reserved */
- avio_wb32(pb, 0); /* Reserved */
- avio_wb32(pb, 0); /* Reserved */
- }
- avio_wb16(pb, track->enc->width); /* Video width */
- avio_wb16(pb, track->height); /* Video height */
- avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
- avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
- avio_wb32(pb, 0); /* Data size (= 0) */
- avio_wb16(pb, 1); /* Frame count (= 1) */
-
- /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
- find_compressor(compressor_name, 32, track);
- avio_w8(pb, strlen(compressor_name));
- avio_write(pb, compressor_name, 31);
-
- if (track->mode == MODE_MOV && track->enc->bits_per_coded_sample)
- avio_wb16(pb, track->enc->bits_per_coded_sample);
- else
- avio_wb16(pb, 0x18); /* Reserved */
- avio_wb16(pb, 0xffff); /* Reserved */
- if (track->tag == MKTAG('m','p','4','v'))
- mov_write_esds_tag(pb, track);
- else if (track->enc->codec_id == AV_CODEC_ID_H263)
- mov_write_d263_tag(pb);
- else if (track->enc->codec_id == AV_CODEC_ID_AVUI ||
- track->enc->codec_id == AV_CODEC_ID_SVQ3) {
- mov_write_extradata_tag(pb, track);
- avio_wb32(pb, 0);
- } else if (track->enc->codec_id == AV_CODEC_ID_DNXHD)
- mov_write_avid_tag(pb, track);
- else if (track->enc->codec_id == AV_CODEC_ID_H264) {
- mov_write_avcc_tag(pb, track);
- if (track->mode == MODE_IPOD)
- mov_write_uuid_tag_ipod(pb);
- } else if (track->enc->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
- mov_write_dvc1_tag(pb, track);
- else if (track->enc->codec_id == AV_CODEC_ID_VP6F ||
- track->enc->codec_id == AV_CODEC_ID_VP6A) {
- /* Don't write any potential extradata here - the cropping
- * is signalled via the normal width/height fields. */
- } else if (track->vos_len > 0)
- mov_write_glbl_tag(pb, track);
-
- if (track->enc->codec_id != AV_CODEC_ID_H264 &&
- track->enc->codec_id != AV_CODEC_ID_MPEG4 &&
- track->enc->codec_id != AV_CODEC_ID_DNXHD)
- if (track->enc->field_order != AV_FIELD_UNKNOWN)
- mov_write_fiel_tag(pb, track);
-
- if (track->enc->sample_aspect_ratio.den && track->enc->sample_aspect_ratio.num &&
- track->enc->sample_aspect_ratio.den != track->enc->sample_aspect_ratio.num) {
- mov_write_pasp_tag(pb, track);
- }
-
- return update_size(pb, pos);
-}
-
-static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
-{
- int64_t pos = avio_tell(pb);
- avio_wb32(pb, 0); /* size */
- ffio_wfourcc(pb, "rtp ");
- avio_wb32(pb, 0); /* Reserved */
- avio_wb16(pb, 0); /* Reserved */
- avio_wb16(pb, 1); /* Data-reference index */
-
- avio_wb16(pb, 1); /* Hint track version */
- avio_wb16(pb, 1); /* Highest compatible version */
- avio_wb32(pb, track->max_packet_size); /* Max packet size */
-
- avio_wb32(pb, 12); /* size */
- ffio_wfourcc(pb, "tims");
- avio_wb32(pb, track->timescale);
-
- return update_size(pb, pos);
-}
-
-static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
-{
- int64_t pos = avio_tell(pb);
-#if 1
- int frame_duration = av_rescale(track->timescale, track->enc->time_base.num, track->enc->time_base.den);
- int nb_frames = 1.0/av_q2d(track->enc->time_base) + 0.5;
-
- if (nb_frames > 255) {
- av_log(NULL, AV_LOG_ERROR, "fps %d is too large\n", nb_frames);
- return AVERROR(EINVAL);
- }
-
- avio_wb32(pb, 0); /* size */
- ffio_wfourcc(pb, "tmcd"); /* Data format */
- avio_wb32(pb, 0); /* Reserved */
- avio_wb32(pb, 1); /* Data reference index */
- avio_wb32(pb, 0); /* Flags */
- avio_wb32(pb, track->timecode_flags); /* Flags (timecode) */
- avio_wb32(pb, track->timescale); /* Timescale */
- avio_wb32(pb, frame_duration); /* Frame duration */
- avio_w8(pb, nb_frames); /* Number of frames */
- avio_wb24(pb, 0); /* Reserved */
- /* TODO: source reference string */
-#else
-
- avio_wb32(pb, 0); /* size */
- ffio_wfourcc(pb, "tmcd"); /* Data format */
- avio_wb32(pb, 0); /* Reserved */
- avio_wb32(pb, 1); /* Data reference index */
- if (track->enc->extradata_size)
- avio_write(pb, track->enc->extradata, track->enc->extradata_size);
-#endif
- return update_size(pb, pos);
-}
-
-static int mov_write_stsd_tag(AVIOContext *pb, MOVTrack *track)
-{
- int64_t pos = avio_tell(pb);
- avio_wb32(pb, 0); /* size */
- ffio_wfourcc(pb, "stsd");
- avio_wb32(pb, 0); /* version & flags */
- avio_wb32(pb, 1); /* entry count */
- if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
- mov_write_video_tag(pb, track);
- else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
- mov_write_audio_tag(pb, track);
- else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
- mov_write_subtitle_tag(pb, track);
- else if (track->enc->codec_tag == MKTAG('r','t','p',' '))
- mov_write_rtp_tag(pb, track);
- else if (track->enc->codec_tag == MKTAG('t','m','c','d'))
- mov_write_tmcd_tag(pb, track);
- return update_size(pb, pos);
-}
-
-static int mov_write_ctts_tag(AVIOContext *pb, MOVTrack *track)
-{
- MOVStts *ctts_entries;
- uint32_t entries = 0;
- uint32_t atom_size;
- int i;
-
- ctts_entries = av_malloc((track->entry + 1) * sizeof(*ctts_entries)); /* worst case */
- ctts_entries[0].count = 1;
- ctts_entries[0].duration = track->cluster[0].cts;
- for (i = 1; i < track->entry; i++) {
- if (track->cluster[i].cts == ctts_entries[entries].duration) {
- ctts_entries[entries].count++; /* compress */
- } else {
- entries++;
- ctts_entries[entries].duration = track->cluster[i].cts;
- ctts_entries[entries].count = 1;
- }
- }
- entries++; /* last one */
- atom_size = 16 + (entries * 8);
- avio_wb32(pb, atom_size); /* size */
- ffio_wfourcc(pb, "ctts");
- avio_wb32(pb, 0); /* version & flags */
- avio_wb32(pb, entries); /* entry count */
- for (i = 0; i < entries; i++) {
- avio_wb32(pb, ctts_entries[i].count);
- avio_wb32(pb, ctts_entries[i].duration);
- }
- av_free(ctts_entries);
- return atom_size;
-}
-
-/* Time to sample atom */
-static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
-{
- MOVStts *stts_entries;
- uint32_t entries = -1;
- uint32_t atom_size;
- int i;
-
- if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
- stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
- stts_entries[0].count = track->sample_count;
- stts_entries[0].duration = 1;
- entries = 1;
- } else {
- stts_entries = track->entry ?
- av_malloc(track->entry * sizeof(*stts_entries)) : /* worst case */
- NULL;
- for (i = 0; i < track->entry; i++) {
- int duration = get_cluster_duration(track, i);
- if (i && duration == stts_entries[entries].duration) {
- stts_entries[entries].count++; /* compress */
- } else {
- entries++;
- stts_entries[entries].duration = duration;
- stts_entries[entries].count = 1;
- }
- }
- entries++; /* last one */
- }
- atom_size = 16 + (entries * 8);
- avio_wb32(pb, atom_size); /* size */
- ffio_wfourcc(pb, "stts");
- avio_wb32(pb, 0); /* version & flags */
- avio_wb32(pb, entries); /* entry count */
- for (i = 0; i < entries; i++) {
- avio_wb32(pb, stts_entries[i].count);
- avio_wb32(pb, stts_entries[i].duration);
- }
- av_free(stts_entries);
- return atom_size;
-}
-
-static int mov_write_dref_tag(AVIOContext *pb)
-{
- avio_wb32(pb, 28); /* size */
- ffio_wfourcc(pb, "dref");
- avio_wb32(pb, 0); /* version & flags */
- avio_wb32(pb, 1); /* entry count */
-
- avio_wb32(pb, 0xc); /* size */
- //FIXME add the alis and rsrc atom
- ffio_wfourcc(pb, "url ");
- avio_wb32(pb, 1); /* version & flags */
-
- return 28;
-}
-
-static int mov_write_stbl_tag(AVIOContext *pb, MOVTrack *track)
-{
- int64_t pos = avio_tell(pb);
- avio_wb32(pb, 0); /* size */
- ffio_wfourcc(pb, "stbl");
- mov_write_stsd_tag(pb, track);
- mov_write_stts_tag(pb, track);
- if ((track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
- track->enc->codec_tag == MKTAG('r','t','p',' ')) &&
- track->has_keyframes && track->has_keyframes < track->entry)
- mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
- if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
- mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE);
- if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO &&
- track->flags & MOV_TRACK_CTTS)
- mov_write_ctts_tag(pb, track);
- mov_write_stsc_tag(pb, track);
- mov_write_stsz_tag(pb, track);
- mov_write_stco_tag(pb, track);
- return update_size(pb, pos);
-}
-
-static int mov_write_dinf_tag(AVIOContext *pb)
-{
- int64_t pos = avio_tell(pb);
- avio_wb32(pb, 0); /* size */
- ffio_wfourcc(pb, "dinf");
- mov_write_dref_tag(pb);
- return update_size(pb, pos);
-}
-
-static int mov_write_nmhd_tag(AVIOContext *pb)
-{
- avio_wb32(pb, 12);
- ffio_wfourcc(pb, "nmhd");
- avio_wb32(pb, 0);
- return 12;
-}
-
-static int mov_write_tcmi_tag(AVIOContext *pb, MOVTrack *track)
-{
- int64_t pos = avio_tell(pb);
- const char *font = "Lucida Grande";
- avio_wb32(pb, 0); /* size */
- ffio_wfourcc(pb, "tcmi"); /* timecode media information atom */
- avio_wb32(pb, 0); /* version & flags */
- avio_wb16(pb, 0); /* text font */
- avio_wb16(pb, 0); /* text face */
- avio_wb16(pb, 12); /* text size */
- avio_wb16(pb, 0); /* (unknown, not in the QT specs...) */
- avio_wb16(pb, 0x0000); /* text color (red) */
- avio_wb16(pb, 0x0000); /* text color (green) */
- avio_wb16(pb, 0x0000); /* text color (blue) */
- avio_wb16(pb, 0xffff); /* background color (red) */
- avio_wb16(pb, 0xffff); /* background color (green) */
- avio_wb16(pb, 0xffff); /* background color (blue) */
- avio_w8(pb, strlen(font)); /* font len (part of the pascal string) */
- avio_write(pb, font, strlen(font)); /* font name */
- return update_size(pb, pos);
-}
-
-static int mov_write_gmhd_tag(AVIOContext *pb, MOVTrack *track)
-{
- int64_t pos = avio_tell(pb);
- avio_wb32(pb, 0); /* size */
- ffio_wfourcc(pb, "gmhd");
- avio_wb32(pb, 0x18); /* gmin size */
- ffio_wfourcc(pb, "gmin");/* generic media info */
- avio_wb32(pb, 0); /* version & flags */
- avio_wb16(pb, 0x40); /* graphics mode = */
- avio_wb16(pb, 0x8000); /* opColor (r?) */
- avio_wb16(pb, 0x8000); /* opColor (g?) */
- avio_wb16(pb, 0x8000); /* opColor (b?) */
- avio_wb16(pb, 0); /* balance */
- avio_wb16(pb, 0); /* reserved */
-
- /*
- * This special text atom is required for
- * Apple Quicktime chapters. The contents
- * don't appear to be documented, so the
- * bytes are copied verbatim.
- */
- if (track->tag != MKTAG('c','6','0','8')) {
- avio_wb32(pb, 0x2C); /* size */
- ffio_wfourcc(pb, "text");
- avio_wb16(pb, 0x01);
- avio_wb32(pb, 0x00);
- avio_wb32(pb, 0x00);
- avio_wb32(pb, 0x00);
- avio_wb32(pb, 0x01);
- avio_wb32(pb, 0x00);
- avio_wb32(pb, 0x00);
- avio_wb32(pb, 0x00);
- avio_wb32(pb, 0x00004000);
- avio_wb16(pb, 0x0000);
- }
-
- if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
- int64_t tmcd_pos = avio_tell(pb);
- avio_wb32(pb, 0); /* size */
- ffio_wfourcc(pb, "tmcd");
- mov_write_tcmi_tag(pb, track);
- update_size(pb, tmcd_pos);
- }
- return update_size(pb, pos);
-}
-
-static int mov_write_smhd_tag(AVIOContext *pb)
-{
- avio_wb32(pb, 16); /* size */
- ffio_wfourcc(pb, "smhd");
- avio_wb32(pb, 0); /* version & flags */
- avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
- avio_wb16(pb, 0); /* reserved */
- return 16;
-}
-
-static int mov_write_vmhd_tag(AVIOContext *pb)
-{
- avio_wb32(pb, 0x14); /* size (always 0x14) */
- ffio_wfourcc(pb, "vmhd");
- avio_wb32(pb, 0x01); /* version & flags */
- avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
- return 0x14;
-}
-
-static int mov_write_hdlr_tag(AVIOContext *pb, MOVTrack *track)
-{
- const char *hdlr, *descr = NULL, *hdlr_type = NULL;
- int64_t pos = avio_tell(pb);
-
- hdlr = "dhlr";
- hdlr_type = "url ";
- descr = "DataHandler";
-
- if (track) {
- hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
- if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
- hdlr_type = "vide";
- descr = "VideoHandler";
- } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
- hdlr_type = "soun";
- descr = "SoundHandler";
- } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
- if (track->tag == MKTAG('c','6','0','8')) {
- hdlr_type = "clcp";
- descr = "ClosedCaptionHandler";
- } else {
- if (track->tag == MKTAG('t','x','3','g')) hdlr_type = "sbtl";
- else hdlr_type = "text";
- descr = "SubtitleHandler";
- }
- } else if (track->enc->codec_tag == MKTAG('r','t','p',' ')) {
- hdlr_type = "hint";
- descr = "HintHandler";
- } else if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
- hdlr_type = "tmcd";
- descr = "TimeCodeHandler";
- } else {
- char tag_buf[32];
- av_get_codec_tag_string(tag_buf, sizeof(tag_buf),
- track->enc->codec_tag);
-
- av_log(track->enc, AV_LOG_WARNING,
- "Unknown hldr_type for %s / 0x%04X, writing dummy values\n",
- tag_buf, track->enc->codec_tag);
- }
- }
-
- avio_wb32(pb, 0); /* size */
- ffio_wfourcc(pb, "hdlr");
- avio_wb32(pb, 0); /* Version & flags */
- avio_write(pb, hdlr, 4); /* handler */
- ffio_wfourcc(pb, hdlr_type); /* handler type */
- avio_wb32(pb, 0); /* reserved */
- avio_wb32(pb, 0); /* reserved */
- avio_wb32(pb, 0); /* reserved */
- if (!track || track->mode == MODE_MOV)
- avio_w8(pb, strlen(descr)); /* pascal string */
- avio_write(pb, descr, strlen(descr)); /* handler description */
- if (track && track->mode != MODE_MOV)
- avio_w8(pb, 0); /* c string */
- return update_size(pb, pos);
-}
-
-static int mov_write_hmhd_tag(AVIOContext *pb)
-{
- /* This atom must be present, but leaving the values at zero
- * seems harmless. */
- avio_wb32(pb, 28); /* size */
- ffio_wfourcc(pb, "hmhd");
- avio_wb32(pb, 0); /* version, flags */
- avio_wb16(pb, 0); /* maxPDUsize */
- avio_wb16(pb, 0); /* avgPDUsize */
- avio_wb32(pb, 0); /* maxbitrate */
- avio_wb32(pb, 0); /* avgbitrate */
- avio_wb32(pb, 0); /* reserved */
- return 28;
-}
-
-static int mov_write_minf_tag(AVIOContext *pb, MOVTrack *track)
-{
- int64_t pos = avio_tell(pb);
- avio_wb32(pb, 0); /* size */
- ffio_wfourcc(pb, "minf");
- if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
- mov_write_vmhd_tag(pb);
- else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
- mov_write_smhd_tag(pb);
- else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
- if (track->tag == MKTAG('t','e','x','t') || track->tag == MKTAG('c','6','0','8')) {
- mov_write_gmhd_tag(pb, track);
- } else {
- mov_write_nmhd_tag(pb);
- }
- } else if (track->tag == MKTAG('r','t','p',' ')) {
- mov_write_hmhd_tag(pb);
- } else if (track->tag == MKTAG('t','m','c','d')) {
- mov_write_gmhd_tag(pb, track);
- }
- if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
- mov_write_hdlr_tag(pb, NULL);
- mov_write_dinf_tag(pb);
- mov_write_stbl_tag(pb, track);
- return update_size(pb, pos);
-}
-
-static int mov_write_mdhd_tag(AVIOContext *pb, MOVTrack *track)
-{
- int version = track->track_duration < INT32_MAX ? 0 : 1;
-
- if (track->mode == MODE_ISM)
- version = 1;
-
- (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
- ffio_wfourcc(pb, "mdhd");
- avio_w8(pb, version);
- avio_wb24(pb, 0); /* flags */
- if (version == 1) {
- avio_wb64(pb, track->time);
- avio_wb64(pb, track->time);
- } else {
- avio_wb32(pb, track->time); /* creation time */
- avio_wb32(pb, track->time); /* modification time */
- }
- avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
- if (!track->entry)
- (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
- else
- (version == 1) ? avio_wb64(pb, track->track_duration) : avio_wb32(pb, track->track_duration); /* duration */
- avio_wb16(pb, track->language); /* language */
- avio_wb16(pb, 0); /* reserved (quality) */
-
- if (version != 0 && track->mode == MODE_MOV) {
- av_log(NULL, AV_LOG_ERROR,
- "FATAL error, file duration too long for timebase, this file will not be\n"
- "playable with quicktime. Choose a different timebase or a different\n"
- "container format\n");
- }
-
- return 32;
-}
-
-static int mov_write_mdia_tag(AVIOContext *pb, MOVTrack *track)
-{
- int64_t pos = avio_tell(pb);
- avio_wb32(pb, 0); /* size */
- ffio_wfourcc(pb, "mdia");
- mov_write_mdhd_tag(pb, track);
- mov_write_hdlr_tag(pb, track);
- mov_write_minf_tag(pb, track);
- return update_size(pb, pos);
-}
-
-/* transformation matrix
- |a b u|
- |c d v|
- |tx ty w| */
-static void write_matrix(AVIOContext *pb, int16_t a, int16_t b, int16_t c,
- int16_t d, int16_t tx, int16_t ty)
-{
- avio_wb32(pb, a << 16); /* 16.16 format */
- avio_wb32(pb, b << 16); /* 16.16 format */
- avio_wb32(pb, 0); /* u in 2.30 format */
- avio_wb32(pb, c << 16); /* 16.16 format */
- avio_wb32(pb, d << 16); /* 16.16 format */
- avio_wb32(pb, 0); /* v in 2.30 format */
- avio_wb32(pb, tx << 16); /* 16.16 format */
- avio_wb32(pb, ty << 16); /* 16.16 format */
- avio_wb32(pb, 1 << 30); /* w in 2.30 format */
-}
-
-static int mov_write_tkhd_tag(AVIOContext *pb, MOVTrack *track, AVStream *st)
-{
- int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
- track->timescale, AV_ROUND_UP);
- int version = duration < INT32_MAX ? 0 : 1;
- int rotation = 0;
-
- if (track->mode == MODE_ISM)
- version = 1;
-
- (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
- ffio_wfourcc(pb, "tkhd");
- avio_w8(pb, version);
- avio_wb24(pb, (track->flags & MOV_TRACK_ENABLED) ?
- MOV_TKHD_FLAG_ENABLED | MOV_TKHD_FLAG_IN_MOVIE :
- MOV_TKHD_FLAG_IN_MOVIE);
- if (version == 1) {
- avio_wb64(pb, track->time);
- avio_wb64(pb, track->time);
- } else {
- avio_wb32(pb, track->time); /* creation time */
- avio_wb32(pb, track->time); /* modification time */
- }
- avio_wb32(pb, track->track_id); /* track-id */
- avio_wb32(pb, 0); /* reserved */
- if (!track->entry)
- (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
- else
- (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
-
- avio_wb32(pb, 0); /* reserved */
- avio_wb32(pb, 0); /* reserved */
- avio_wb16(pb, 0); /* layer */
- avio_wb16(pb, st ? st->codec->codec_type : 0); /* alternate group) */
- /* Volume, only for audio */
- if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
- avio_wb16(pb, 0x0100);
- else
- avio_wb16(pb, 0);
- avio_wb16(pb, 0); /* reserved */
-
- /* Matrix structure */
- if (st && st->metadata) {
- AVDictionaryEntry *rot = av_dict_get(st->metadata, "rotate", NULL, 0);
- rotation = (rot && rot->value) ? atoi(rot->value) : 0;
- }
- if (rotation == 90) {
- write_matrix(pb, 0, 1, -1, 0, track->enc->height, 0);
- } else if (rotation == 180) {
- write_matrix(pb, -1, 0, 0, -1, track->enc->width, track->enc->height);
- } else if (rotation == 270) {
- write_matrix(pb, 0, -1, 1, 0, 0, track->enc->width);
- } else {
- write_matrix(pb, 1, 0, 0, 1, 0, 0);
- }
- /* Track width and height, for visual only */
- if (st && (track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
- track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
- if (track->mode == MODE_MOV) {
- avio_wb32(pb, track->enc->width << 16);
- avio_wb32(pb, track->height << 16);
- } else {
- double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
- if (!sample_aspect_ratio || track->height != track->enc->height)
- sample_aspect_ratio = 1;
- avio_wb32(pb, sample_aspect_ratio * track->enc->width * 0x10000);
- avio_wb32(pb, track->height * 0x10000);
- }
- } else {
- avio_wb32(pb, 0);
- avio_wb32(pb, 0);
- }
- return 0x5c;
-}
-
-static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
-{
- int32_t width = av_rescale(track->enc->sample_aspect_ratio.num, track->enc->width,
- track->enc->sample_aspect_ratio.den);
-
- int64_t pos = avio_tell(pb);
-
- avio_wb32(pb, 0); /* size */
- ffio_wfourcc(pb, "tapt");
-
- avio_wb32(pb, 20);
- ffio_wfourcc(pb, "clef");
- avio_wb32(pb, 0);
- avio_wb32(pb, width << 16);
- avio_wb32(pb, track->enc->height << 16);
-
- avio_wb32(pb, 20);
- ffio_wfourcc(pb, "prof");
- avio_wb32(pb, 0);
- avio_wb32(pb, width << 16);
- avio_wb32(pb, track->enc->height << 16);
-
- avio_wb32(pb, 20);
- ffio_wfourcc(pb, "enof");
- avio_wb32(pb, 0);
- avio_wb32(pb, track->enc->width << 16);
- avio_wb32(pb, track->enc->height << 16);
-
- return update_size(pb, pos);
-}
-
-// This box seems important for the psp playback ... without it the movie seems to hang
-static int mov_write_edts_tag(AVIOContext *pb, MOVTrack *track)
-{
- int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
- track->timescale, AV_ROUND_UP);
- int version = duration < INT32_MAX ? 0 : 1;
- int entry_size, entry_count, size;
- int64_t delay, start_ct = track->cluster[0].cts;
- delay = av_rescale_rnd(track->cluster[0].dts + start_ct, MOV_TIMESCALE,
- track->timescale, AV_ROUND_DOWN);
- version |= delay < INT32_MAX ? 0 : 1;
-
- entry_size = (version == 1) ? 20 : 12;
- entry_count = 1 + (delay > 0);
- size = 24 + entry_count * entry_size;
-
- /* write the atom data */
- avio_wb32(pb, size);
- ffio_wfourcc(pb, "edts");
- avio_wb32(pb, size - 8);
- ffio_wfourcc(pb, "elst");
- avio_w8(pb, version);
- avio_wb24(pb, 0); /* flags */
-
- avio_wb32(pb, entry_count);
- if (delay > 0) { /* add an empty edit to delay presentation */
- if (version == 1) {
- avio_wb64(pb, delay);
- avio_wb64(pb, -1);
- } else {
- avio_wb32(pb, delay);
- avio_wb32(pb, -1);
- }
- avio_wb32(pb, 0x00010000);
- } else {
- av_assert0(av_rescale_rnd(track->cluster[0].dts, MOV_TIMESCALE, track->timescale, AV_ROUND_DOWN) <= 0);
- start_ct = -FFMIN(track->cluster[0].dts, 0); //FFMIN needed due to rounding
- duration += delay;
- }
-
- /* duration */
- if (version == 1) {
- avio_wb64(pb, duration);
- avio_wb64(pb, start_ct);
- } else {
- avio_wb32(pb, duration);
- avio_wb32(pb, start_ct);
- }
- avio_wb32(pb, 0x00010000);
- return size;
-}
-
-static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
-{
- avio_wb32(pb, 20); // size
- ffio_wfourcc(pb, "tref");
- avio_wb32(pb, 12); // size (subatom)
- avio_wl32(pb, track->tref_tag);
- avio_wb32(pb, track->tref_id);
- return 20;
-}
-
-// goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
-static int mov_write_uuid_tag_psp(AVIOContext *pb, MOVTrack *mov)
-{
- avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
- ffio_wfourcc(pb, "uuid");
- ffio_wfourcc(pb, "USMT");
- avio_wb32(pb, 0x21d24fce);
- avio_wb32(pb, 0xbb88695c);
- avio_wb32(pb, 0xfac9c740);
- avio_wb32(pb, 0x1c); // another size here!
- ffio_wfourcc(pb, "MTDT");
- avio_wb32(pb, 0x00010012);
- avio_wb32(pb, 0x0a);
- avio_wb32(pb, 0x55c40000);
- avio_wb32(pb, 0x1);
- avio_wb32(pb, 0x0);
- return 0x34;
-}
-
-static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
-{
- AVFormatContext *ctx = track->rtp_ctx;
- char buf[1000] = "";
- int len;
-
- ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
- NULL, NULL, 0, 0, ctx);
- av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id);
- len = strlen(buf);
-
- avio_wb32(pb, len + 24);
- ffio_wfourcc(pb, "udta");
- avio_wb32(pb, len + 16);
- ffio_wfourcc(pb, "hnti");
- avio_wb32(pb, len + 8);
- ffio_wfourcc(pb, "sdp ");
- avio_write(pb, buf, len);
- return len + 24;
-}
-
-static int mov_write_trak_tag(AVIOContext *pb, MOVMuxContext *mov,
- MOVTrack *track, AVStream *st)
-{
- int64_t pos = avio_tell(pb);
- avio_wb32(pb, 0); /* size */
- ffio_wfourcc(pb, "trak");
- mov_write_tkhd_tag(pb, track, st);
- if (supports_edts(mov))
- mov_write_edts_tag(pb, track); // PSP Movies and several other cases require edts box
- if (track->tref_tag)
- mov_write_tref_tag(pb, track);
- mov_write_mdia_tag(pb, track);
- if (track->mode == MODE_PSP)
- mov_write_uuid_tag_psp(pb, track); // PSP Movies require this uuid box
- if (track->tag == MKTAG('r','t','p',' '))
- mov_write_udta_sdp(pb, track);
- if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO && track->mode == MODE_MOV) {
- double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
- if (st->sample_aspect_ratio.num && 1.0 != sample_aspect_ratio)
- mov_write_tapt_tag(pb, track);
- }
- return update_size(pb, pos);
-}
-
-static int mov_write_iods_tag(AVIOContext *pb, MOVMuxContext *mov)
-{
- int i, has_audio = 0, has_video = 0;
- int64_t pos = avio_tell(pb);
- int audio_profile = mov->iods_audio_profile;
- int video_profile = mov->iods_video_profile;
- for (i = 0; i < mov->nb_streams; i++) {
- if (mov->tracks[i].entry > 0) {
- has_audio |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_AUDIO;
- has_video |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_VIDEO;
- }
- }
- if (audio_profile < 0)
- audio_profile = 0xFF - has_audio;
- if (video_profile < 0)
- video_profile = 0xFF - has_video;
- avio_wb32(pb, 0x0); /* size */
- ffio_wfourcc(pb, "iods");
- avio_wb32(pb, 0); /* version & flags */
- put_descr(pb, 0x10, 7);
- avio_wb16(pb, 0x004f);
- avio_w8(pb, 0xff);
- avio_w8(pb, 0xff);
- avio_w8(pb, audio_profile);
- avio_w8(pb, video_profile);
- avio_w8(pb, 0xff);
- return update_size(pb, pos);
-}
-
-static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
-{
- avio_wb32(pb, 0x20); /* size */
- ffio_wfourcc(pb, "trex");
- avio_wb32(pb, 0); /* version & flags */
- avio_wb32(pb, track->track_id); /* track ID */
- avio_wb32(pb, 1); /* default sample description index */
- avio_wb32(pb, 0); /* default sample duration */
- avio_wb32(pb, 0); /* default sample size */
- avio_wb32(pb, 0); /* default sample flags */
- return 0;
-}
-
-static int mov_write_mvex_tag(AVIOContext *pb, MOVMuxContext *mov)
-{
- int64_t pos = avio_tell(pb);
- int i;
- avio_wb32(pb, 0x0); /* size */
- ffio_wfourcc(pb, "mvex");
- for (i = 0; i < mov->nb_streams; i++)
- mov_write_trex_tag(pb, &mov->tracks[i]);
- return update_size(pb, pos);
-}
-
-static int mov_write_mvhd_tag(AVIOContext *pb, MOVMuxContext *mov)
-{
- int max_track_id = 1, i;
- int64_t max_track_len_temp, max_track_len = 0;
- int version;
-
- for (i = 0; i < mov->nb_streams; i++) {
- if (mov->tracks[i].entry > 0 && mov->tracks[i].timescale) {
- max_track_len_temp = av_rescale_rnd(mov->tracks[i].track_duration,
- MOV_TIMESCALE,
- mov->tracks[i].timescale,
- AV_ROUND_UP);
- if (max_track_len < max_track_len_temp)
- max_track_len = max_track_len_temp;
- if (max_track_id < mov->tracks[i].track_id)
- max_track_id = mov->tracks[i].track_id;
- }
- }
-
- version = max_track_len < UINT32_MAX ? 0 : 1;
- (version == 1) ? avio_wb32(pb, 120) : avio_wb32(pb, 108); /* size */
- ffio_wfourcc(pb, "mvhd");
- avio_w8(pb, version);
- avio_wb24(pb, 0); /* flags */
- if (version == 1) {
- avio_wb64(pb, mov->time);
- avio_wb64(pb, mov->time);
- } else {
- avio_wb32(pb, mov->time); /* creation time */
- avio_wb32(pb, mov->time); /* modification time */
- }
- avio_wb32(pb, MOV_TIMESCALE);
- (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */
-
- avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
- avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
- avio_wb16(pb, 0); /* reserved */
- avio_wb32(pb, 0); /* reserved */
- avio_wb32(pb, 0); /* reserved */
-
- /* Matrix structure */
- write_matrix(pb, 1, 0, 0, 1, 0, 0);
-
- avio_wb32(pb, 0); /* reserved (preview time) */
- avio_wb32(pb, 0); /* reserved (preview duration) */
- avio_wb32(pb, 0); /* reserved (poster time) */
- avio_wb32(pb, 0); /* reserved (selection time) */
- avio_wb32(pb, 0); /* reserved (selection duration) */
- avio_wb32(pb, 0); /* reserved (current time) */
- avio_wb32(pb, max_track_id + 1); /* Next track id */
- return 0x6c;
-}
-
-static int mov_write_itunes_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
- AVFormatContext *s)
-{
- avio_wb32(pb, 33); /* size */
- ffio_wfourcc(pb, "hdlr");
- avio_wb32(pb, 0);
- avio_wb32(pb, 0);
- ffio_wfourcc(pb, "mdir");
- ffio_wfourcc(pb, "appl");
- avio_wb32(pb, 0);
- avio_wb32(pb, 0);
- avio_w8(pb, 0);
- return 33;
-}
-
-/* helper function to write a data tag with the specified string as data */
-static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
-{
- if (long_style) {
- int size = 16 + strlen(data);
- avio_wb32(pb, size); /* size */
- ffio_wfourcc(pb, "data");
- avio_wb32(pb, 1);
- avio_wb32(pb, 0);
- avio_write(pb, data, strlen(data));
- return size;
- } else {
- if (!lang)
- lang = ff_mov_iso639_to_lang("und", 1);
- avio_wb16(pb, strlen(data)); /* string length */
- avio_wb16(pb, lang);
- avio_write(pb, data, strlen(data));
- return strlen(data) + 4;
- }
-}
-
-static int mov_write_string_tag(AVIOContext *pb, const char *name,
- const char *value, int lang, int long_style)
-{
- int size = 0;
- if (value && value[0]) {
- int64_t pos = avio_tell(pb);
- avio_wb32(pb, 0); /* size */
- ffio_wfourcc(pb, name);
- mov_write_string_data_tag(pb, value, lang, long_style);
- size = update_size(pb, pos);
- }
- return size;
-}
-
-static int mov_write_string_metadata(AVFormatContext *s, AVIOContext *pb,
- const char *name, const char *tag,
- int long_style)
-{
- int l, lang = 0, len, len2;
- AVDictionaryEntry *t, *t2 = NULL;
- char tag2[16];
-
- if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
- return 0;
-
- len = strlen(t->key);
- snprintf(tag2, sizeof(tag2), "%s-", tag);
- while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
- len2 = strlen(t2->key);
- if (len2 == len + 4 && !strcmp(t->value, t2->value)
- && (l = ff_mov_iso639_to_lang(&t2->key[len2 - 3], 1)) >= 0) {
- lang = l;
- break;
- }
- }
- return mov_write_string_tag(pb, name, t->value, lang, long_style);
-}
-
-/* iTunes bpm number */
-static int mov_write_tmpo_tag(AVIOContext *pb, AVFormatContext *s)
-{
- AVDictionaryEntry *t = av_dict_get(s->metadata, "tmpo", NULL, 0);
- int size = 0, tmpo = t ? atoi(t->value) : 0;
- if (tmpo) {
- size = 26;
- avio_wb32(pb, size);
- ffio_wfourcc(pb, "tmpo");
- avio_wb32(pb, size-8); /* size */
- ffio_wfourcc(pb, "data");
- avio_wb32(pb, 0x15); //type specifier
- avio_wb32(pb, 0);
- avio_wb16(pb, tmpo); // data
- }
- return size;
-}
-
-/* iTunes track or disc number */
-static int mov_write_trkn_tag(AVIOContext *pb, MOVMuxContext *mov,
- AVFormatContext *s, int disc)
-{
- AVDictionaryEntry *t = av_dict_get(s->metadata,
- disc ? "disc" : "track",
- NULL, 0);
- int size = 0, track = t ? atoi(t->value) : 0;
- if (track) {
- int tracks = 0;
- char *slash = strchr(t->value, '/');
- if (slash)
- tracks = atoi(slash + 1);
- avio_wb32(pb, 32); /* size */
- ffio_wfourcc(pb, disc ? "disk" : "trkn");
- avio_wb32(pb, 24); /* size */
- ffio_wfourcc(pb, "data");
- avio_wb32(pb, 0); // 8 bytes empty
- avio_wb32(pb, 0);
- avio_wb16(pb, 0); // empty
- avio_wb16(pb, track); // track / disc number
- avio_wb16(pb, tracks); // total track / disc number
- avio_wb16(pb, 0); // empty
- size = 32;
- }
- return size;
-}
-
-static int mov_write_int8_metadata(AVFormatContext *s, AVIOContext *pb,
- const char *name, const char *tag,
- int len)
-{
- AVDictionaryEntry *t = NULL;
- uint8_t num;
- int size = 24 + len;
-
- if (len != 1 && len != 4)
- return -1;
-
- if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
- return 0;
- num = atoi(t->value);
-
- avio_wb32(pb, size);
- ffio_wfourcc(pb, name);
- avio_wb32(pb, size - 8);
- ffio_wfourcc(pb, "data");
- avio_wb32(pb, 0x15);
- avio_wb32(pb, 0);
- if (len==4) avio_wb32(pb, num);
- else avio_w8 (pb, num);
-
- return size;
-}
-
-/* iTunes meta data list */
-static int mov_write_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
- AVFormatContext *s)
-{
- int64_t pos = avio_tell(pb);
- avio_wb32(pb, 0); /* size */
- ffio_wfourcc(pb, "ilst");
- mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
- mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
- mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
- mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
- mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
- mov_write_string_metadata(s, pb, "\251day", "date" , 1);
- mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
- mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
- mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
- mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1);
- mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
- mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
- mov_write_string_metadata(s, pb, "desc", "description",1);
- mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
- mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
- mov_write_string_metadata(s, pb, "tven", "episode_id",1);
- mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
- mov_write_int8_metadata (s, pb, "tves", "episode_sort",4);
- mov_write_int8_metadata (s, pb, "tvsn", "season_number",4);
- mov_write_int8_metadata (s, pb, "stik", "media_type",1);
- mov_write_int8_metadata (s, pb, "hdvd", "hd_video", 1);
- mov_write_int8_metadata (s, pb, "pgap", "gapless_playback",1);
- mov_write_trkn_tag(pb, mov, s, 0); // track number
- mov_write_trkn_tag(pb, mov, s, 1); // disc number
- mov_write_tmpo_tag(pb, s);
- return update_size(pb, pos);
-}
-
-/* iTunes meta data tag */
-static int mov_write_meta_tag(AVIOContext *pb, MOVMuxContext *mov,
- AVFormatContext *s)
-{
- int size = 0;
- int64_t pos = avio_tell(pb);
- avio_wb32(pb, 0); /* size */
- ffio_wfourcc(pb, "meta");
- avio_wb32(pb, 0);
- mov_write_itunes_hdlr_tag(pb, mov, s);
- mov_write_ilst_tag(pb, mov, s);
- size = update_size(pb, pos);
- return size;
-}
-
-static int utf8len(const uint8_t *b)
-{
- int len = 0;
- int val;
- while (*b) {
- GET_UTF8(val, *b++, return -1;)
- len++;
- }
- return len;
-}
-
-static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
-{
- int val;
- while (*b) {
- GET_UTF8(val, *b++, return -1;)
- avio_wb16(pb, val);
- }
- avio_wb16(pb, 0x00);
- return 0;
-}
-
-static uint16_t language_code(const char *str)
-{
- return (((str[0] - 0x60) & 0x1F) << 10) +
- (((str[1] - 0x60) & 0x1F) << 5) +
- (( str[2] - 0x60) & 0x1F);
-}
-
-static int mov_write_3gp_udta_tag(AVIOContext *pb, AVFormatContext *s,
- const char *tag, const char *str)
-{
- int64_t pos = avio_tell(pb);
- AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
- if (!t || !utf8len(t->value))
- return 0;
- avio_wb32(pb, 0); /* size */
- ffio_wfourcc(pb, tag); /* type */
- avio_wb32(pb, 0); /* version + flags */
- if (!strcmp(tag, "yrrc"))
- avio_wb16(pb, atoi(t->value));
- else {
- avio_wb16(pb, language_code("eng")); /* language */
- avio_write(pb, t->value, strlen(t->value) + 1); /* UTF8 string value */
- if (!strcmp(tag, "albm") &&
- (t = av_dict_get(s->metadata, "track", NULL, 0)))
- avio_w8(pb, atoi(t->value));
- }
- return update_size(pb, pos);
-}
-
-static int mov_write_chpl_tag(AVIOContext *pb, AVFormatContext *s)
-{
- int64_t pos = avio_tell(pb);
- int i, nb_chapters = FFMIN(s->nb_chapters, 255);
-
- avio_wb32(pb, 0); // size
- ffio_wfourcc(pb, "chpl");
- avio_wb32(pb, 0x01000000); // version + flags
- avio_wb32(pb, 0); // unknown
- avio_w8(pb, nb_chapters);
-
- for (i = 0; i < nb_chapters; i++) {
- AVChapter *c = s->chapters[i];
- AVDictionaryEntry *t;
- avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
-
- if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
- int len = FFMIN(strlen(t->value), 255);
- avio_w8(pb, len);
- avio_write(pb, t->value, len);
- } else
- avio_w8(pb, 0);
- }
- return update_size(pb, pos);
-}
-
-static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
- AVFormatContext *s)
-{
- AVIOContext *pb_buf;
- int i, ret, size;
- uint8_t *buf;
-
- for (i = 0; i < s->nb_streams; i++)
- if (mov->tracks[i].enc->flags & CODEC_FLAG_BITEXACT) {
- return 0;
- }
-
- ret = avio_open_dyn_buf(&pb_buf);
- if (ret < 0)
- return ret;
-
- if (mov->mode & MODE_3GP) {
- mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
- mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
- mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
- mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
- mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
- mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
- mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
- mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
- } else if (mov->mode == MODE_MOV) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4
- mov_write_string_metadata(s, pb_buf, "\251ART", "artist", 0);
- mov_write_string_metadata(s, pb_buf, "\251nam", "title", 0);
- mov_write_string_metadata(s, pb_buf, "\251aut", "author", 0);
- mov_write_string_metadata(s, pb_buf, "\251alb", "album", 0);
- mov_write_string_metadata(s, pb_buf, "\251day", "date", 0);
- mov_write_string_metadata(s, pb_buf, "\251swr", "encoder", 0);
- // currently ignored by mov.c
- mov_write_string_metadata(s, pb_buf, "\251des", "comment", 0);
- // add support for libquicktime, this atom is also actually read by mov.c
- mov_write_string_metadata(s, pb_buf, "\251cmt", "comment", 0);
- mov_write_string_metadata(s, pb_buf, "\251gen", "genre", 0);
- mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright", 0);
- } else {
- /* iTunes meta data */
- mov_write_meta_tag(pb_buf, mov, s);
- }
-
- if (s->nb_chapters)
- mov_write_chpl_tag(pb_buf, s);
-
- if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
- avio_wb32(pb, size + 8);
- ffio_wfourcc(pb, "udta");
- avio_write(pb, buf, size);
- }
- av_free(buf);
-
- return 0;
-}
-
-static void mov_write_psp_udta_tag(AVIOContext *pb,
- const char *str, const char *lang, int type)
-{
- int len = utf8len(str) + 1;
- if (len <= 0)
- return;
- avio_wb16(pb, len * 2 + 10); /* size */
- avio_wb32(pb, type); /* type */
- avio_wb16(pb, language_code(lang)); /* language */
- avio_wb16(pb, 0x01); /* ? */
- ascii_to_wc(pb, str);
-}
-
-static int mov_write_uuidusmt_tag(AVIOContext *pb, AVFormatContext *s)
-{
- AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
- int64_t pos, pos2;
-
- if (title) {
- pos = avio_tell(pb);
- avio_wb32(pb, 0); /* size placeholder*/
- ffio_wfourcc(pb, "uuid");
- ffio_wfourcc(pb, "USMT");
- avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
- avio_wb32(pb, 0xbb88695c);
- avio_wb32(pb, 0xfac9c740);
-
- pos2 = avio_tell(pb);
- avio_wb32(pb, 0); /* size placeholder*/
- ffio_wfourcc(pb, "MTDT");
- avio_wb16(pb, 4);
-
- // ?
- avio_wb16(pb, 0x0C); /* size */
- avio_wb32(pb, 0x0B); /* type */
- avio_wb16(pb, language_code("und")); /* language */
- avio_wb16(pb, 0x0); /* ? */
- avio_wb16(pb, 0x021C); /* data */
-
- mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
- mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
- mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
-
- update_size(pb, pos2);
- return update_size(pb, pos);
- }
-
- return 0;
-}
-
-static void build_chunks(MOVTrack *trk)
-{
- int i;
- MOVIentry *chunk = &trk->cluster[0];
- uint64_t chunkSize = chunk->size;
- chunk->chunkNum = 1;
- if (trk->chunkCount)
- return;
- trk->chunkCount = 1;
- for (i = 1; i<trk->entry; i++){
- if (chunk->pos + chunkSize == trk->cluster[i].pos &&
- chunkSize + trk->cluster[i].size < (1<<20)){
- chunkSize += trk->cluster[i].size;
- chunk->samples_in_chunk += trk->cluster[i].entries;
- } else {
- trk->cluster[i].chunkNum = chunk->chunkNum+1;
- chunk=&trk->cluster[i];
- chunkSize = chunk->size;
- trk->chunkCount++;
- }
- }
-}
-
-static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,
- AVFormatContext *s)
-{
- int i;
- int64_t pos = avio_tell(pb);
- avio_wb32(pb, 0); /* size placeholder*/
- ffio_wfourcc(pb, "moov");
-
- for (i = 0; i < mov->nb_streams; i++) {
- if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
- continue;
-
- mov->tracks[i].time = mov->time;
- mov->tracks[i].track_id = i + 1;
-
- if (mov->tracks[i].entry)
- build_chunks(&mov->tracks[i]);
- }
-
- if (mov->chapter_track)
- for (i = 0; i < s->nb_streams; i++) {
- mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
- mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].track_id;
- }
- for (i = 0; i < mov->nb_streams; i++) {
- if (mov->tracks[i].tag == MKTAG('r','t','p',' ')) {
- mov->tracks[i].tref_tag = MKTAG('h','i','n','t');
- mov->tracks[i].tref_id =
- mov->tracks[mov->tracks[i].src_track].track_id;
- }
- }
- for (i = 0; i < mov->nb_streams; i++) {
- if (mov->tracks[i].tag == MKTAG('t','m','c','d')) {
- int src_trk = mov->tracks[i].src_track;
- mov->tracks[src_trk].tref_tag = mov->tracks[i].tag;
- mov->tracks[src_trk].tref_id = mov->tracks[i].track_id;
- mov->tracks[i].track_duration = mov->tracks[src_trk].track_duration;
- }
- }
-
- mov_write_mvhd_tag(pb, mov);
- if (mov->mode != MODE_MOV && !mov->iods_skip)
- mov_write_iods_tag(pb, mov);
- for (i = 0; i < mov->nb_streams; i++) {
- if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT) {
- mov_write_trak_tag(pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
- }
- }
- if (mov->flags & FF_MOV_FLAG_FRAGMENT)
- mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */
-
- if (mov->mode == MODE_PSP)
- mov_write_uuidusmt_tag(pb, s);
- else
- mov_write_udta_tag(pb, mov, s);
-
- return update_size(pb, pos);
-}
-
-static void param_write_int(AVIOContext *pb, const char *name, int value)
-{
- avio_printf(pb, "<param name=\"%s\" value=\"%d\" valuetype=\"data\"/>\n", name, value);
-}
-
-static void param_write_string(AVIOContext *pb, const char *name, const char *value)
-{
- avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, value);
-}
-
-static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
-{
- char buf[150];
- len = FFMIN(sizeof(buf) / 2 - 1, len);
- ff_data_to_hex(buf, value, len, 0);
- buf[2 * len] = '\0';
- avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, buf);
-}
-
-static int mov_write_isml_manifest(AVIOContext *pb, MOVMuxContext *mov)
-{
- int64_t pos = avio_tell(pb);
- int i;
- static const uint8_t uuid[] = {
- 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
- 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
- };
-
- avio_wb32(pb, 0);
- ffio_wfourcc(pb, "uuid");
- avio_write(pb, uuid, sizeof(uuid));
- avio_wb32(pb, 0);
-
- avio_printf(pb, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
- avio_printf(pb, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
- avio_printf(pb, "<head>\n");
- avio_printf(pb, "<meta name=\"creator\" content=\"%s\" />\n",
- LIBAVFORMAT_IDENT);
- avio_printf(pb, "</head>\n");
- avio_printf(pb, "<body>\n");
- avio_printf(pb, "<switch>\n");
- for (i = 0; i < mov->nb_streams; i++) {
- MOVTrack *track = &mov->tracks[i];
- const char *type;
- /* track->track_id is initialized in write_moov, and thus isn't known
- * here yet */
- int track_id = i + 1;
-
- if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
- type = "video";
- } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
- type = "audio";
- } else {
- continue;
- }
- avio_printf(pb, "<%s systemBitrate=\"%d\">\n", type,
- track->enc->bit_rate);
- param_write_int(pb, "systemBitrate", track->enc->bit_rate);
- param_write_int(pb, "trackID", track_id);
- if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
- if (track->enc->codec_id == AV_CODEC_ID_H264) {
- uint8_t *ptr;
- int size = track->enc->extradata_size;
- if (!ff_avc_write_annexb_extradata(track->enc->extradata, &ptr,
- &size)) {
- param_write_hex(pb, "CodecPrivateData",
- ptr ? ptr : track->enc->extradata,
- size);
- av_free(ptr);
- }
- param_write_string(pb, "FourCC", "H264");
- } else if (track->enc->codec_id == AV_CODEC_ID_VC1) {
- param_write_string(pb, "FourCC", "WVC1");
- param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
- track->enc->extradata_size);
- }
- param_write_int(pb, "MaxWidth", track->enc->width);
- param_write_int(pb, "MaxHeight", track->enc->height);
- param_write_int(pb, "DisplayWidth", track->enc->width);
- param_write_int(pb, "DisplayHeight", track->enc->height);
- } else {
- if (track->enc->codec_id == AV_CODEC_ID_AAC) {
- param_write_string(pb, "FourCC", "AACL");
- } else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO) {
- param_write_string(pb, "FourCC", "WMAP");
- }
- param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
- track->enc->extradata_size);
- param_write_int(pb, "AudioTag", ff_codec_get_tag(ff_codec_wav_tags,
- track->enc->codec_id));
- param_write_int(pb, "Channels", track->enc->channels);
- param_write_int(pb, "SamplingRate", track->enc->sample_rate);
- param_write_int(pb, "BitsPerSample", 16);
- param_write_int(pb, "PacketSize", track->enc->block_align ?
- track->enc->block_align : 4);
- }
- avio_printf(pb, "</%s>\n", type);
- }
- avio_printf(pb, "</switch>\n");
- avio_printf(pb, "</body>\n");
- avio_printf(pb, "</smil>\n");
-
- return update_size(pb, pos);
-}
-
-static int mov_write_mfhd_tag(AVIOContext *pb, MOVMuxContext *mov)
-{
- avio_wb32(pb, 16);
- ffio_wfourcc(pb, "mfhd");
- avio_wb32(pb, 0);
- avio_wb32(pb, mov->fragments);
- return 0;
-}
-
-static int mov_write_tfhd_tag(AVIOContext *pb, MOVMuxContext *mov,
- MOVTrack *track, int64_t moof_offset)
-{
- int64_t pos = avio_tell(pb);
- uint32_t flags = MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
- MOV_TFHD_BASE_DATA_OFFSET;
- if (!track->entry) {
- flags |= MOV_TFHD_DURATION_IS_EMPTY;
- } else {
- flags |= MOV_TFHD_DEFAULT_FLAGS;
- }
- if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET)
- flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
-
- /* Don't set a default sample size, the silverlight player refuses
- * to play files with that set. Don't set a default sample duration,
- * WMP freaks out if it is set. Don't set a base data offset, PIFF
- * file format says it MUST NOT be set. */
- if (track->mode == MODE_ISM)
- flags &= ~(MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
- MOV_TFHD_BASE_DATA_OFFSET);
-
- avio_wb32(pb, 0); /* size placeholder */
- ffio_wfourcc(pb, "tfhd");
- avio_w8(pb, 0); /* version */
- avio_wb24(pb, flags);
-
- avio_wb32(pb, track->track_id); /* track-id */
- if (flags & MOV_TFHD_BASE_DATA_OFFSET)
- avio_wb64(pb, moof_offset);
- if (flags & MOV_TFHD_DEFAULT_DURATION) {
- track->default_duration = get_cluster_duration(track, 0);
- avio_wb32(pb, track->default_duration);
- }
- if (flags & MOV_TFHD_DEFAULT_SIZE) {
- track->default_size = track->entry ? track->cluster[0].size : 1;
- avio_wb32(pb, track->default_size);
- } else
- track->default_size = -1;
-
- if (flags & MOV_TFHD_DEFAULT_FLAGS) {
- track->default_sample_flags =
- track->enc->codec_type == AVMEDIA_TYPE_VIDEO ?
- (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC) :
- MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO;
- avio_wb32(pb, track->default_sample_flags);
- }
-
- return update_size(pb, pos);
-}
-
-static uint32_t get_sample_flags(MOVTrack *track, MOVIentry *entry)
-{
- return entry->flags & MOV_SYNC_SAMPLE ? MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO :
- (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC);
-}
-
-static int mov_write_trun_tag(AVIOContext *pb, MOVMuxContext *mov,
- MOVTrack *track, int moof_size)
-{
- int64_t pos = avio_tell(pb);
- uint32_t flags = MOV_TRUN_DATA_OFFSET;
- int i;
-
- for (i = 0; i < track->entry; i++) {
- if (get_cluster_duration(track, i) != track->default_duration)
- flags |= MOV_TRUN_SAMPLE_DURATION;
- if (track->cluster[i].size != track->default_size)
- flags |= MOV_TRUN_SAMPLE_SIZE;
- if (i > 0 && get_sample_flags(track, &track->cluster[i]) != track->default_sample_flags)
- flags |= MOV_TRUN_SAMPLE_FLAGS;
- }
- if (!(flags & MOV_TRUN_SAMPLE_FLAGS))
- flags |= MOV_TRUN_FIRST_SAMPLE_FLAGS;
- if (track->flags & MOV_TRACK_CTTS)
- flags |= MOV_TRUN_SAMPLE_CTS;
-
- avio_wb32(pb, 0); /* size placeholder */
- ffio_wfourcc(pb, "trun");
- avio_w8(pb, 0); /* version */
- avio_wb24(pb, flags);
-
- avio_wb32(pb, track->entry); /* sample count */
- if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
- !(mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) &&
- track->track_id != 1)
- avio_wb32(pb, 0); /* Later tracks follow immediately after the previous one */
- else
- avio_wb32(pb, moof_size + 8 + track->data_offset +
- track->cluster[0].pos); /* data offset */
- if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS)
- avio_wb32(pb, get_sample_flags(track, &track->cluster[0]));
-
- for (i = 0; i < track->entry; i++) {
- if (flags & MOV_TRUN_SAMPLE_DURATION)
- avio_wb32(pb, get_cluster_duration(track, i));
- if (flags & MOV_TRUN_SAMPLE_SIZE)
- avio_wb32(pb, track->cluster[i].size);
- if (flags & MOV_TRUN_SAMPLE_FLAGS)
- avio_wb32(pb, get_sample_flags(track, &track->cluster[i]));
- if (flags & MOV_TRUN_SAMPLE_CTS)
- avio_wb32(pb, track->cluster[i].cts);
- }
-
- return update_size(pb, pos);
-}
-
-static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack *track)
-{
- int64_t pos = avio_tell(pb);
- static const uint8_t uuid[] = {
- 0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
- 0x80, 0xe2, 0x14, 0x1d, 0xaf, 0xf7, 0x57, 0xb2
- };
-
- avio_wb32(pb, 0); /* size placeholder */
- ffio_wfourcc(pb, "uuid");
- avio_write(pb, uuid, sizeof(uuid));
- avio_w8(pb, 1);
- avio_wb24(pb, 0);
- avio_wb64(pb, track->frag_start);
- avio_wb64(pb, track->start_dts + track->track_duration -
- track->cluster[0].dts);
-
- return update_size(pb, pos);
-}
-
-static int mov_write_tfrf_tag(AVIOContext *pb, MOVMuxContext *mov,
- MOVTrack *track, int entry)
-{
- int n = track->nb_frag_info - 1 - entry, i;
- int size = 8 + 16 + 4 + 1 + 16*n;
- static const uint8_t uuid[] = {
- 0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
- 0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f
- };
-
- if (entry < 0)
- return 0;
-
- avio_seek(pb, track->frag_info[entry].tfrf_offset, SEEK_SET);
- avio_wb32(pb, size);
- ffio_wfourcc(pb, "uuid");
- avio_write(pb, uuid, sizeof(uuid));
- avio_w8(pb, 1);
- avio_wb24(pb, 0);
- avio_w8(pb, n);
- for (i = 0; i < n; i++) {
- int index = entry + 1 + i;
- avio_wb64(pb, track->frag_info[index].time);
- avio_wb64(pb, track->frag_info[index].duration);
- }
- if (n < mov->ism_lookahead) {
- int free_size = 16 * (mov->ism_lookahead - n);
- avio_wb32(pb, free_size);
- ffio_wfourcc(pb, "free");
- ffio_fill(pb, 0, free_size - 8);
- }
-
- return 0;
-}
-
-static int mov_write_tfrf_tags(AVIOContext *pb, MOVMuxContext *mov,
- MOVTrack *track)
-{
- int64_t pos = avio_tell(pb);
- int i;
- for (i = 0; i < mov->ism_lookahead; i++) {
- /* Update the tfrf tag for the last ism_lookahead fragments,
- * nb_frag_info - 1 is the next fragment to be written. */
- mov_write_tfrf_tag(pb, mov, track, track->nb_frag_info - 2 - i);
- }
- avio_seek(pb, pos, SEEK_SET);
- return 0;
-}
-
-static int mov_write_traf_tag(AVIOContext *pb, MOVMuxContext *mov,
- MOVTrack *track, int64_t moof_offset,
- int moof_size)
-{
- int64_t pos = avio_tell(pb);
- avio_wb32(pb, 0); /* size placeholder */
- ffio_wfourcc(pb, "traf");
-
- mov_write_tfhd_tag(pb, mov, track, moof_offset);
- mov_write_trun_tag(pb, mov, track, moof_size);
- if (mov->mode == MODE_ISM) {
- mov_write_tfxd_tag(pb, track);
-
- if (mov->ism_lookahead) {
- int i, size = 16 + 4 + 1 + 16 * mov->ism_lookahead;
-
- track->tfrf_offset = avio_tell(pb);
- avio_wb32(pb, 8 + size);
- ffio_wfourcc(pb, "free");
- for (i = 0; i < size; i++)
- avio_w8(pb, 0);
- }
- }
-
- return update_size(pb, pos);
-}
-
-static int mov_write_moof_tag_internal(AVIOContext *pb, MOVMuxContext *mov,
- int tracks, int moof_size)
-{
- int64_t pos = avio_tell(pb);
- int i;
-
- avio_wb32(pb, 0); /* size placeholder */
- ffio_wfourcc(pb, "moof");
-
- mov_write_mfhd_tag(pb, mov);
- for (i = 0; i < mov->nb_streams; i++) {
- MOVTrack *track = &mov->tracks[i];
- if (tracks >= 0 && i != tracks)
- continue;
- if (!track->entry)
- continue;
- mov_write_traf_tag(pb, mov, track, pos, moof_size);
- }
-
- return update_size(pb, pos);
-}
-
-static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks)
-{
- AVIOContext *avio_buf;
- int ret, moof_size;
-
- if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
- return ret;
- mov_write_moof_tag_internal(avio_buf, mov, tracks, 0);
- moof_size = ffio_close_null_buf(avio_buf);
- return mov_write_moof_tag_internal(pb, mov, tracks, moof_size);
-}
-
-static int mov_write_tfra_tag(AVIOContext *pb, MOVTrack *track)
-{
- int64_t pos = avio_tell(pb);
- int i;
-
- avio_wb32(pb, 0); /* size placeholder */
- ffio_wfourcc(pb, "tfra");
- avio_w8(pb, 1); /* version */
- avio_wb24(pb, 0);
-
- avio_wb32(pb, track->track_id);
- avio_wb32(pb, 0); /* length of traf/trun/sample num */
- avio_wb32(pb, track->nb_frag_info);
- for (i = 0; i < track->nb_frag_info; i++) {
- avio_wb64(pb, track->frag_info[i].time);
- avio_wb64(pb, track->frag_info[i].offset);
- avio_w8(pb, 1); /* traf number */
- avio_w8(pb, 1); /* trun number */
- avio_w8(pb, 1); /* sample number */
- }
-
- return update_size(pb, pos);
-}
-
-static int mov_write_mfra_tag(AVIOContext *pb, MOVMuxContext *mov)
-{
- int64_t pos = avio_tell(pb);
- int i;
-
- avio_wb32(pb, 0); /* size placeholder */
- ffio_wfourcc(pb, "mfra");
- /* An empty mfra atom is enough to indicate to the publishing point that
- * the stream has ended. */
- if (mov->flags & FF_MOV_FLAG_ISML)
- return update_size(pb, pos);
-
- for (i = 0; i < mov->nb_streams; i++) {
- MOVTrack *track = &mov->tracks[i];
- if (track->nb_frag_info)
- mov_write_tfra_tag(pb, track);
- }
-
- avio_wb32(pb, 16);
- ffio_wfourcc(pb, "mfro");
- avio_wb32(pb, 0); /* version + flags */
- avio_wb32(pb, avio_tell(pb) + 4 - pos);
-
- return update_size(pb, pos);
-}
-
-static int mov_write_mdat_tag(AVIOContext *pb, MOVMuxContext *mov)
-{
- avio_wb32(pb, 8); // placeholder for extended size field (64 bit)
- ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
-
- mov->mdat_pos = avio_tell(pb);
- avio_wb32(pb, 0); /* size placeholder*/
- ffio_wfourcc(pb, "mdat");
- return 0;
-}
-
-/* TODO: This needs to be more general */
-static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)
-{
- MOVMuxContext *mov = s->priv_data;
- int64_t pos = avio_tell(pb);
- int has_h264 = 0, has_video = 0;
- int minor = 0x200;
- int i;
-
- for (i = 0; i < s->nb_streams; i++) {
- AVStream *st = s->streams[i];
- if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
- has_video = 1;
- if (st->codec->codec_id == AV_CODEC_ID_H264)
- has_h264 = 1;
- }
-
- avio_wb32(pb, 0); /* size */
- ffio_wfourcc(pb, "ftyp");
-
- if (mov->mode == MODE_3GP) {
- ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4");
- minor = has_h264 ? 0x100 : 0x200;
- } else if (mov->mode & MODE_3G2) {
- ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a");
- minor = has_h264 ? 0x20000 : 0x10000;
- } else if (mov->mode == MODE_PSP)
- ffio_wfourcc(pb, "MSNV");
- else if (mov->mode == MODE_MP4)
- ffio_wfourcc(pb, "isom");
- else if (mov->mode == MODE_IPOD)
- ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
- else if (mov->mode == MODE_ISM)
- ffio_wfourcc(pb, "isml");
- else if (mov->mode == MODE_F4V)
- ffio_wfourcc(pb, "f4v ");
- else
- ffio_wfourcc(pb, "qt ");
-
- avio_wb32(pb, minor);
-
- if (mov->mode == MODE_MOV)
- ffio_wfourcc(pb, "qt ");
- else if (mov->mode == MODE_ISM) {
- ffio_wfourcc(pb, "piff");
- ffio_wfourcc(pb, "iso2");
- } else {
- ffio_wfourcc(pb, "isom");
- ffio_wfourcc(pb, "iso2");
- if (has_h264)
- ffio_wfourcc(pb, "avc1");
- }
-
- if (mov->mode == MODE_3GP)
- ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");
- else if (mov->mode & MODE_3G2)
- ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");
- else if (mov->mode == MODE_PSP)
- ffio_wfourcc(pb, "MSNV");
- else if (mov->mode == MODE_MP4)
- ffio_wfourcc(pb, "mp41");
- return update_size(pb, pos);
-}
-
-static void mov_write_uuidprof_tag(AVIOContext *pb, AVFormatContext *s)
-{
- AVCodecContext *video_codec = s->streams[0]->codec;
- AVCodecContext *audio_codec = s->streams[1]->codec;
- int audio_rate = audio_codec->sample_rate;
- int frame_rate = ((video_codec->time_base.den) * (0x10000)) / (video_codec->time_base.num);
- int audio_kbitrate = audio_codec->bit_rate / 1000;
- int video_kbitrate = FFMIN(video_codec->bit_rate / 1000, 800 - audio_kbitrate);
-
- avio_wb32(pb, 0x94); /* size */
- ffio_wfourcc(pb, "uuid");
- ffio_wfourcc(pb, "PROF");
-
- avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
- avio_wb32(pb, 0xbb88695c);
- avio_wb32(pb, 0xfac9c740);
-
- avio_wb32(pb, 0x0); /* ? */
- avio_wb32(pb, 0x3); /* 3 sections ? */
-
- avio_wb32(pb, 0x14); /* size */
- ffio_wfourcc(pb, "FPRF");
- avio_wb32(pb, 0x0); /* ? */
- avio_wb32(pb, 0x0); /* ? */
- avio_wb32(pb, 0x0); /* ? */
-
- avio_wb32(pb, 0x2c); /* size */
- ffio_wfourcc(pb, "APRF"); /* audio */
- avio_wb32(pb, 0x0);
- avio_wb32(pb, 0x2); /* TrackID */
- ffio_wfourcc(pb, "mp4a");
- avio_wb32(pb, 0x20f);
- avio_wb32(pb, 0x0);
- avio_wb32(pb, audio_kbitrate);
- avio_wb32(pb, audio_kbitrate);
- avio_wb32(pb, audio_rate);
- avio_wb32(pb, audio_codec->channels);
-
- avio_wb32(pb, 0x34); /* size */
- ffio_wfourcc(pb, "VPRF"); /* video */
- avio_wb32(pb, 0x0);
- avio_wb32(pb, 0x1); /* TrackID */
- if (video_codec->codec_id == AV_CODEC_ID_H264) {
- ffio_wfourcc(pb, "avc1");
- avio_wb16(pb, 0x014D);
- avio_wb16(pb, 0x0015);
- } else {
- ffio_wfourcc(pb, "mp4v");
- avio_wb16(pb, 0x0000);
- avio_wb16(pb, 0x0103);
- }
- avio_wb32(pb, 0x0);
- avio_wb32(pb, video_kbitrate);
- avio_wb32(pb, video_kbitrate);
- avio_wb32(pb, frame_rate);
- avio_wb32(pb, frame_rate);
- avio_wb16(pb, video_codec->width);
- avio_wb16(pb, video_codec->height);
- avio_wb32(pb, 0x010001); /* ? */
-}
-
-static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
-{
- uint32_t c = -1;
- int i, closed_gop = 0;
-
- for (i = 0; i < pkt->size - 4; i++) {
- c = (c << 8) + pkt->data[i];
- if (c == 0x1b8) { // gop
- closed_gop = pkt->data[i + 4] >> 6 & 0x01;
- } else if (c == 0x100) { // pic
- int temp_ref = (pkt->data[i + 1] << 2) | (pkt->data[i + 2] >> 6);
- if (!temp_ref || closed_gop) // I picture is not reordered
- *flags = MOV_SYNC_SAMPLE;
- else
- *flags = MOV_PARTIAL_SYNC_SAMPLE;
- break;
- }
- }
- return 0;
-}
-
-static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk, int fragment)
-{
- const uint8_t *start, *next, *end = pkt->data + pkt->size;
- int seq = 0, entry = 0;
- int key = pkt->flags & AV_PKT_FLAG_KEY;
- start = find_next_marker(pkt->data, end);
- for (next = start; next < end; start = next) {
- next = find_next_marker(start + 4, end);
- switch (AV_RB32(start)) {
- case VC1_CODE_SEQHDR:
- seq = 1;
- break;
- case VC1_CODE_ENTRYPOINT:
- entry = 1;
- break;
- case VC1_CODE_SLICE:
- trk->vc1_info.slices = 1;
- break;
- }
- }
- if (!trk->entry && !fragment) {
- /* First packet in first fragment */
- trk->vc1_info.first_packet_seq = seq;
- trk->vc1_info.first_packet_entry = entry;
- } else if ((seq && !trk->vc1_info.packet_seq) ||
- (entry && !trk->vc1_info.packet_entry)) {
- int i;
- for (i = 0; i < trk->entry; i++)
- trk->cluster[i].flags &= ~MOV_SYNC_SAMPLE;
- trk->has_keyframes = 0;
- if (seq)
- trk->vc1_info.packet_seq = 1;
- if (entry)
- trk->vc1_info.packet_entry = 1;
- if (!fragment) {
- /* First fragment */
- if ((!seq || trk->vc1_info.first_packet_seq) &&
- (!entry || trk->vc1_info.first_packet_entry)) {
- /* First packet had the same headers as this one, readd the
- * sync sample flag. */
- trk->cluster[0].flags |= MOV_SYNC_SAMPLE;
- trk->has_keyframes = 1;
- }
- }
- }
- if (trk->vc1_info.packet_seq && trk->vc1_info.packet_entry)
- key = seq && entry;
- else if (trk->vc1_info.packet_seq)
- key = seq;
- else if (trk->vc1_info.packet_entry)
- key = entry;
- if (key) {
- trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
- trk->has_keyframes++;
- }
-}
-
-static int mov_flush_fragment(AVFormatContext *s)
-{
- MOVMuxContext *mov = s->priv_data;
- int i, first_track = -1;
- int64_t mdat_size = 0;
-
- if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
- return 0;
-
- if (!(mov->flags & FF_MOV_FLAG_EMPTY_MOOV) && mov->fragments == 0) {
- int64_t pos = avio_tell(s->pb);
- uint8_t *buf;
- int buf_size, moov_size;
-
- for (i = 0; i < mov->nb_streams; i++)
- if (!mov->tracks[i].entry)
- break;
- /* Don't write the initial moov unless all tracks have data */
- if (i < mov->nb_streams)
- return 0;
-
- moov_size = get_moov_size(s);
- for (i = 0; i < mov->nb_streams; i++)
- mov->tracks[i].data_offset = pos + moov_size + 8;
-
- mov_write_moov_tag(s->pb, mov, s);
-
- buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
- mov->mdat_buf = NULL;
- avio_wb32(s->pb, buf_size + 8);
- ffio_wfourcc(s->pb, "mdat");
- avio_write(s->pb, buf, buf_size);
- av_free(buf);
-
- mov->fragments++;
- mov->mdat_size = 0;
- for (i = 0; i < mov->nb_streams; i++) {
- if (mov->tracks[i].entry)
- mov->tracks[i].frag_start += mov->tracks[i].start_dts +
- mov->tracks[i].track_duration -
- mov->tracks[i].cluster[0].dts;
- mov->tracks[i].entry = 0;
- }
- avio_flush(s->pb);
- return 0;
- }
-
- for (i = 0; i < mov->nb_streams; i++) {
- MOVTrack *track = &mov->tracks[i];
- if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF)
- track->data_offset = 0;
- else
- track->data_offset = mdat_size;
- if (!track->mdat_buf)
- continue;
- mdat_size += avio_tell(track->mdat_buf);
- if (first_track < 0)
- first_track = i;
- }
-
- if (!mdat_size)
- return 0;
-
- for (i = 0; i < mov->nb_streams; i++) {
- MOVTrack *track = &mov->tracks[i];
- int buf_size, write_moof = 1, moof_tracks = -1;
- uint8_t *buf;
- int64_t duration = 0;
-
- if (track->entry)
- duration = track->start_dts + track->track_duration -
- track->cluster[0].dts;
- if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) {
- if (!track->mdat_buf)
- continue;
- mdat_size = avio_tell(track->mdat_buf);
- moof_tracks = i;
- } else {
- write_moof = i == first_track;
- }
-
- if (write_moof) {
- MOVFragmentInfo *info;
- avio_flush(s->pb);
- track->nb_frag_info++;
- if (track->nb_frag_info >= track->frag_info_capacity) {
- unsigned new_capacity = track->nb_frag_info + MOV_FRAG_INFO_ALLOC_INCREMENT;
- if (av_reallocp_array(&track->frag_info,
- new_capacity,
- sizeof(*track->frag_info)))
- return AVERROR(ENOMEM);
- track->frag_info_capacity = new_capacity;
- }
- info = &track->frag_info[track->nb_frag_info - 1];
- info->offset = avio_tell(s->pb);
- info->time = mov->tracks[i].frag_start;
- info->duration = duration;
- mov_write_tfrf_tags(s->pb, mov, track);
-
- mov_write_moof_tag(s->pb, mov, moof_tracks);
- info->tfrf_offset = track->tfrf_offset;
- mov->fragments++;
-
- avio_wb32(s->pb, mdat_size + 8);
- ffio_wfourcc(s->pb, "mdat");
- }
-
- if (track->entry)
- track->frag_start += duration;
- track->entry = 0;
- if (!track->mdat_buf)
- continue;
- buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
- track->mdat_buf = NULL;
-
- avio_write(s->pb, buf, buf_size);
- av_free(buf);
- }
-
- mov->mdat_size = 0;
-
- avio_flush(s->pb);
- return 0;
-}
-
-int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
-{
- MOVMuxContext *mov = s->priv_data;
- AVIOContext *pb = s->pb;
- MOVTrack *trk = &mov->tracks[pkt->stream_index];
- AVCodecContext *enc = trk->enc;
- unsigned int samples_in_chunk = 0;
- int size = pkt->size;
- uint8_t *reformatted_data = NULL;
-
- if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
- int ret;
- if (mov->fragments > 0) {
- if (!trk->mdat_buf) {
- if ((ret = avio_open_dyn_buf(&trk->mdat_buf)) < 0)
- return ret;
- }
- pb = trk->mdat_buf;
- } else {
- if (!mov->mdat_buf) {
- if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
- return ret;
- }
- pb = mov->mdat_buf;
- }
- }
-
- if (enc->codec_id == AV_CODEC_ID_AMR_NB) {
- /* We must find out how many AMR blocks there are in one packet */
- static uint16_t packed_size[16] =
- {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1};
- int len = 0;
-
- while (len < size && samples_in_chunk < 100) {
- len += packed_size[(pkt->data[len] >> 3) & 0x0F];
- samples_in_chunk++;
- }
- if (samples_in_chunk > 1) {
- av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
- return -1;
- }
- } else if (enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
- enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
- samples_in_chunk = enc->frame_size;
- } else if (trk->sample_size)
- samples_in_chunk = size / trk->sample_size;
- else
- samples_in_chunk = 1;
-
- /* copy extradata if it exists */
- if (trk->vos_len == 0 && enc->extradata_size > 0) {
- trk->vos_len = enc->extradata_size;
- trk->vos_data = av_malloc(trk->vos_len);
- memcpy(trk->vos_data, enc->extradata, trk->vos_len);
- }
-
- if (enc->codec_id == AV_CODEC_ID_AAC && pkt->size > 2 &&
- (AV_RB16(pkt->data) & 0xfff0) == 0xfff0) {
- if (!s->streams[pkt->stream_index]->nb_frames) {
- av_log(s, AV_LOG_ERROR, "Malformed AAC bitstream detected: "
- "use audio bitstream filter 'aac_adtstoasc' to fix it "
- "('-bsf:a aac_adtstoasc' option with ffmpeg)\n");
- return -1;
- }
- av_log(s, AV_LOG_WARNING, "aac bitstream error\n");
- }
- if (enc->codec_id == AV_CODEC_ID_H264 && trk->vos_len > 0 && *(uint8_t *)trk->vos_data != 1) {
- /* from x264 or from bytestream h264 */
- /* nal reformating needed */
- if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
- ff_avc_parse_nal_units_buf(pkt->data, &reformatted_data,
- &size);
- avio_write(pb, reformatted_data, size);
- } else {
- size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
- }
- } else {
- avio_write(pb, pkt->data, size);
- }
-
- if ((enc->codec_id == AV_CODEC_ID_DNXHD ||
- enc->codec_id == AV_CODEC_ID_AC3) && !trk->vos_len) {
- /* copy frame to create needed atoms */
- trk->vos_len = size;
- trk->vos_data = av_malloc(size);
- if (!trk->vos_data)
- return AVERROR(ENOMEM);
- memcpy(trk->vos_data, pkt->data, size);
- }
-
- if (trk->entry >= trk->cluster_capacity) {
- unsigned new_capacity = 2 * (trk->entry + MOV_INDEX_CLUSTER_SIZE);
- if (av_reallocp_array(&trk->cluster, new_capacity,
- sizeof(*trk->cluster)))
- return AVERROR(ENOMEM);
- trk->cluster_capacity = new_capacity;
- }
-
- trk->cluster[trk->entry].pos = avio_tell(pb) - size;
- trk->cluster[trk->entry].samples_in_chunk = samples_in_chunk;
- trk->cluster[trk->entry].chunkNum = 0;
- trk->cluster[trk->entry].size = size;
- trk->cluster[trk->entry].entries = samples_in_chunk;
- trk->cluster[trk->entry].dts = pkt->dts;
- if (!trk->entry && trk->start_dts != AV_NOPTS_VALUE) {
- /* First packet of a new fragment. We already wrote the duration
- * of the last packet of the previous fragment based on track_duration,
- * which might not exactly match our dts. Therefore adjust the dts
- * of this packet to be what the previous packets duration implies. */
- trk->cluster[trk->entry].dts = trk->start_dts + trk->track_duration;
- }
- if (!trk->entry && trk->start_dts == AV_NOPTS_VALUE && !supports_edts(mov)) {
- trk->cluster[trk->entry].dts = trk->start_dts = 0;
- }
- if (trk->start_dts == AV_NOPTS_VALUE)
- trk->start_dts = pkt->dts;
- trk->track_duration = pkt->dts - trk->start_dts + pkt->duration;
- trk->last_sample_is_subtitle_end = 0;
-
- if (pkt->pts == AV_NOPTS_VALUE) {
- av_log(s, AV_LOG_WARNING, "pts has no value\n");
- pkt->pts = pkt->dts;
- }
- if (pkt->dts != pkt->pts)
- trk->flags |= MOV_TRACK_CTTS;
- trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
- trk->cluster[trk->entry].flags = 0;
- if (enc->codec_id == AV_CODEC_ID_VC1) {
- mov_parse_vc1_frame(pkt, trk, mov->fragments);
- } else if (pkt->flags & AV_PKT_FLAG_KEY) {
- if (mov->mode == MODE_MOV && enc->codec_id == AV_CODEC_ID_MPEG2VIDEO &&
- trk->entry > 0) { // force sync sample for the first key frame
- mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
- if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
- trk->flags |= MOV_TRACK_STPS;
- } else {
- trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
- }
- if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
- trk->has_keyframes++;
- }
- trk->entry++;
- trk->sample_count += samples_in_chunk;
- mov->mdat_size += size;
-
- if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
- ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry,
- reformatted_data, size);
- av_free(reformatted_data);
- return 0;
-}
-
-static int mov_write_single_packet(AVFormatContext *s, AVPacket *pkt)
-{
- MOVMuxContext *mov = s->priv_data;
- MOVTrack *trk = &mov->tracks[pkt->stream_index];
- AVCodecContext *enc = trk->enc;
- int64_t frag_duration = 0;
- int size = pkt->size;
-
- if (!pkt->size)
- return 0; /* Discard 0 sized packets */
-
- if (trk->entry && pkt->stream_index < s->nb_streams)
- frag_duration = av_rescale_q(pkt->dts - trk->cluster[0].dts,
- s->streams[pkt->stream_index]->time_base,
- AV_TIME_BASE_Q);
- if ((mov->max_fragment_duration &&
- frag_duration >= mov->max_fragment_duration) ||
- (mov->max_fragment_size && mov->mdat_size + size >= mov->max_fragment_size) ||
- (mov->flags & FF_MOV_FLAG_FRAG_KEYFRAME &&
- enc->codec_type == AVMEDIA_TYPE_VIDEO &&
- trk->entry && pkt->flags & AV_PKT_FLAG_KEY)) {
- if (frag_duration >= mov->min_fragment_duration)
- mov_flush_fragment(s);
- }
-
- return ff_mov_write_packet(s, pkt);
-}
-
-static int mov_write_subtitle_end_packet(AVFormatContext *s,
- int stream_index,
- int64_t dts) {
- AVPacket end;
- uint8_t data[2] = {0};
- int ret;
-
- av_init_packet(&end);
- end.size = sizeof(data);
- end.data = data;
- end.pts = dts;
- end.dts = dts;
- end.duration = 0;
- end.stream_index = stream_index;
-
- ret = mov_write_single_packet(s, &end);
- av_free_packet(&end);
-
- return ret;
-}
-
-static int mov_write_packet(AVFormatContext *s, AVPacket *pkt)
-{
- if (!pkt) {
- mov_flush_fragment(s);
- return 1;
- } else {
- int i;
- MOVMuxContext *mov = s->priv_data;
-
- if (!pkt->size) return 0; /* Discard 0 sized packets */
-
- /*
- * Subtitles require special handling.
- *
- * 1) For full complaince, every track must have a sample at
- * dts == 0, which is rarely true for subtitles. So, as soon
- * as we see any packet with dts > 0, write an empty subtitle
- * at dts == 0 for any subtitle track with no samples in it.
- *
- * 2) For each subtitle track, check if the current packet's
- * dts is past the duration of the last subtitle sample. If
- * so, we now need to write an end sample for that subtitle.
- *
- * This must be done conditionally to allow for subtitles that
- * immediately replace each other, in which case an end sample
- * is not needed, and is, in fact, actively harmful.
- *
- * 3) See mov_write_trailer for how the final end sample is
- * handled.
- */
- for (i = 0; i < mov->nb_streams; i++) {
- MOVTrack *trk = &mov->tracks[i];
- int ret;
-
- if (trk->enc->codec_id == AV_CODEC_ID_MOV_TEXT &&
- trk->track_duration < pkt->dts &&
- (trk->entry == 0 || !trk->last_sample_is_subtitle_end)) {
- ret = mov_write_subtitle_end_packet(s, i, trk->track_duration);
- if (ret < 0) return ret;
- trk->last_sample_is_subtitle_end = 1;
- }
- }
-
- return mov_write_single_packet(s, pkt);
- }
-}
-
-// QuickTime chapters involve an additional text track with the chapter names
-// as samples, and a tref pointing from the other tracks to the chapter one.
-static int mov_create_chapter_track(AVFormatContext *s, int tracknum)
-{
- AVIOContext *pb;
-
- MOVMuxContext *mov = s->priv_data;
- MOVTrack *track = &mov->tracks[tracknum];
- AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
- int i, len;
-
- track->mode = mov->mode;
- track->tag = MKTAG('t','e','x','t');
- track->timescale = MOV_TIMESCALE;
- track->enc = avcodec_alloc_context3(NULL);
- if (!track->enc)
- return AVERROR(ENOMEM);
- track->enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
-#if 0
- // These properties are required to make QT recognize the chapter track
- uint8_t chapter_properties[43] = { 0, 0, 0, 0, 0, 0, 0, 1, };
- if (ff_alloc_extradata(track->enc, sizeof(chapter_properties)))
- return AVERROR(ENOMEM);
- memcpy(track->enc->extradata, chapter_properties, sizeof(chapter_properties));
-#else
- if (avio_open_dyn_buf(&pb) >= 0) {
- int size;
- uint8_t *buf;
-
- /* Stub header (usually for Quicktime chapter track) */
- // TextSampleEntry
- avio_wb32(pb, 0x01); // displayFlags
- avio_w8(pb, 0x00); // horizontal justification
- avio_w8(pb, 0x00); // vertical justification
- avio_w8(pb, 0x00); // bgColourRed
- avio_w8(pb, 0x00); // bgColourGreen
- avio_w8(pb, 0x00); // bgColourBlue
- avio_w8(pb, 0x00); // bgColourAlpha
- // BoxRecord
- avio_wb16(pb, 0x00); // defTextBoxTop
- avio_wb16(pb, 0x00); // defTextBoxLeft
- avio_wb16(pb, 0x00); // defTextBoxBottom
- avio_wb16(pb, 0x00); // defTextBoxRight
- // StyleRecord
- avio_wb16(pb, 0x00); // startChar
- avio_wb16(pb, 0x00); // endChar
- avio_wb16(pb, 0x01); // fontID
- avio_w8(pb, 0x00); // fontStyleFlags
- avio_w8(pb, 0x00); // fontSize
- avio_w8(pb, 0x00); // fgColourRed
- avio_w8(pb, 0x00); // fgColourGreen
- avio_w8(pb, 0x00); // fgColourBlue
- avio_w8(pb, 0x00); // fgColourAlpha
- // FontTableBox
- avio_wb32(pb, 0x0D); // box size
- ffio_wfourcc(pb, "ftab"); // box atom name
- avio_wb16(pb, 0x01); // entry count
- // FontRecord
- avio_wb16(pb, 0x01); // font ID
- avio_w8(pb, 0x00); // font name length
-
- if ((size = avio_close_dyn_buf(pb, &buf)) > 0) {
- track->enc->extradata = buf;
- track->enc->extradata_size = size;
- } else {
- av_free(&buf);
- }
- }
-#endif
-
- for (i = 0; i < s->nb_chapters; i++) {
- AVChapter *c = s->chapters[i];
- AVDictionaryEntry *t;
-
- int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
- pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
- pkt.duration = end - pkt.dts;
-
- if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
- len = strlen(t->value);
- pkt.size = len + 2;
- pkt.data = av_malloc(pkt.size);
- if (!pkt.data)
- return AVERROR(ENOMEM);
- AV_WB16(pkt.data, len);
- memcpy(pkt.data + 2, t->value, len);
- ff_mov_write_packet(s, &pkt);
- av_freep(&pkt.data);
- }
- }
-
- return 0;
-}
-
-static int mov_create_timecode_track(AVFormatContext *s, int index, int src_index, const char *tcstr)
-{
- int ret;
- MOVMuxContext *mov = s->priv_data;
- MOVTrack *track = &mov->tracks[index];
- AVStream *src_st = s->streams[src_index];
- AVTimecode tc;
- AVPacket pkt = {.stream_index = index, .flags = AV_PKT_FLAG_KEY, .size = 4};
- AVRational rate = find_fps(s, src_st);
-
- /* compute the frame number */
- ret = av_timecode_init_from_string(&tc, rate, tcstr, s);
- if (ret < 0)
- return ret;
-
- /* tmcd track based on video stream */
- track->mode = mov->mode;
- track->tag = MKTAG('t','m','c','d');
- track->src_track = src_index;
- track->timescale = mov->tracks[src_index].timescale;
- if (tc.flags & AV_TIMECODE_FLAG_DROPFRAME)
- track->timecode_flags |= MOV_TIMECODE_FLAG_DROPFRAME;
-
- /* encode context: tmcd data stream */
- track->enc = avcodec_alloc_context3(NULL);
- track->enc->codec_type = AVMEDIA_TYPE_DATA;
- track->enc->codec_tag = track->tag;
- track->enc->time_base = av_inv_q(rate);
-
- /* the tmcd track just contains one packet with the frame number */
- pkt.data = av_malloc(pkt.size);
- AV_WB32(pkt.data, tc.start);
- ret = ff_mov_write_packet(s, &pkt);
- av_free(pkt.data);
- return ret;
-}
-
-/*
- * st->disposition controls the "enabled" flag in the tkhd tag.
- * QuickTime will not play a track if it is not enabled. So make sure
- * that one track of each type (audio, video, subtitle) is enabled.
- *
- * Subtitles are special. For audio and video, setting "enabled" also
- * makes the track "default" (i.e. it is rendered when played). For
- * subtitles, an "enabled" subtitle is not rendered by default, but
- * if no subtitle is enabled, the subtitle menu in QuickTime will be
- * empty!
- */
-static void enable_tracks(AVFormatContext *s)
-{
- MOVMuxContext *mov = s->priv_data;
- int i;
- uint8_t enabled[AVMEDIA_TYPE_NB];
- int first[AVMEDIA_TYPE_NB];
-
- for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
- enabled[i] = 0;
- first[i] = -1;
- }
-
- for (i = 0; i < s->nb_streams; i++) {
- AVStream *st = s->streams[i];
-
- if (st->codec->codec_type <= AVMEDIA_TYPE_UNKNOWN ||
- st->codec->codec_type >= AVMEDIA_TYPE_NB)
- continue;
-
- if (first[st->codec->codec_type] < 0)
- first[st->codec->codec_type] = i;
- if (st->disposition & AV_DISPOSITION_DEFAULT) {
- mov->tracks[i].flags |= MOV_TRACK_ENABLED;
- enabled[st->codec->codec_type] = 1;
- }
- }
-
- for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
- switch (i) {
- case AVMEDIA_TYPE_VIDEO:
- case AVMEDIA_TYPE_AUDIO:
- case AVMEDIA_TYPE_SUBTITLE:
- if (!enabled[i] && first[i] >= 0)
- mov->tracks[first[i]].flags |= MOV_TRACK_ENABLED;
- break;
- }
- }
-}
-
-static void mov_free(AVFormatContext *s)
-{
- MOVMuxContext *mov = s->priv_data;
- int i;
-
- if (mov->chapter_track) {
- if (mov->tracks[mov->chapter_track].enc)
- av_freep(&mov->tracks[mov->chapter_track].enc->extradata);
- av_freep(&mov->tracks[mov->chapter_track].enc);
- }
-
- for (i = 0; i < mov->nb_streams; i++) {
- if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
- ff_mov_close_hinting(&mov->tracks[i]);
- else if (mov->tracks[i].tag == MKTAG('t','m','c','d') && mov->nb_meta_tmcd)
- av_freep(&mov->tracks[i].enc);
- av_freep(&mov->tracks[i].cluster);
- av_freep(&mov->tracks[i].frag_info);
-
- if (mov->tracks[i].vos_len)
- av_freep(&mov->tracks[i].vos_data);
- }
-
- av_freep(&mov->tracks);
-}
-
-static int mov_write_header(AVFormatContext *s)
-{
- AVIOContext *pb = s->pb;
- MOVMuxContext *mov = s->priv_data;
- AVDictionaryEntry *t, *global_tcr = av_dict_get(s->metadata, "timecode", NULL, 0);
- int i, ret, hint_track = 0, tmcd_track = 0;
-
- /* Default mode == MP4 */
- mov->mode = MODE_MP4;
-
- if (s->oformat != NULL) {
- if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
- else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2;
- else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
- else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP;
- else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD;
- else if (!strcmp("ismv",s->oformat->name)) mov->mode = MODE_ISM;
- else if (!strcmp("f4v", s->oformat->name)) mov->mode = MODE_F4V;
- }
-
- /* Set the FRAGMENT flag if any of the fragmentation methods are
- * enabled. */
- if (mov->max_fragment_duration || mov->max_fragment_size ||
- mov->flags & (FF_MOV_FLAG_EMPTY_MOOV |
- FF_MOV_FLAG_FRAG_KEYFRAME |
- FF_MOV_FLAG_FRAG_CUSTOM))
- mov->flags |= FF_MOV_FLAG_FRAGMENT;
-
- /* Set other implicit flags immediately */
- if (mov->mode == MODE_ISM)
- mov->flags |= FF_MOV_FLAG_EMPTY_MOOV | FF_MOV_FLAG_SEPARATE_MOOF |
- FF_MOV_FLAG_FRAGMENT;
-
- /* faststart: moov at the beginning of the file, if supported */
- if (mov->flags & FF_MOV_FLAG_FASTSTART) {
- if ((mov->flags & FF_MOV_FLAG_FRAGMENT) ||
- (s->flags & AVFMT_FLAG_CUSTOM_IO)) {
- av_log(s, AV_LOG_WARNING, "The faststart flag is incompatible "
- "with fragmentation and custom IO, disabling faststart\n");
- mov->flags &= ~FF_MOV_FLAG_FASTSTART;
- } else
- mov->reserved_moov_size = -1;
- }
-
- if (!supports_edts(mov) && s->avoid_negative_ts < 0) {
- s->avoid_negative_ts = 1;
- }
-
- /* Non-seekable output is ok if using fragmentation. If ism_lookahead
- * is enabled, we don't support non-seekable output at all. */
- if (!s->pb->seekable &&
- (!(mov->flags & FF_MOV_FLAG_FRAGMENT) || mov->ism_lookahead)) {
- av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
- return AVERROR(EINVAL);
- }
-
- mov_write_ftyp_tag(pb,s);
- if (mov->mode == MODE_PSP) {
- int video_streams_nb = 0, audio_streams_nb = 0, other_streams_nb = 0;
- for (i = 0; i < s->nb_streams; i++) {
- AVStream *st = s->streams[i];
- if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
- video_streams_nb++;
- else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
- audio_streams_nb++;
- else
- other_streams_nb++;
- }
-
- if (video_streams_nb != 1 || audio_streams_nb != 1 || other_streams_nb) {
- av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
- return AVERROR(EINVAL);
- }
- mov_write_uuidprof_tag(pb, s);
- }
-
- mov->nb_streams = s->nb_streams;
- if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters)
- mov->chapter_track = mov->nb_streams++;
-
- if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
- /* Add hint tracks for each audio and video stream */
- hint_track = mov->nb_streams;
- for (i = 0; i < s->nb_streams; i++) {
- AVStream *st = s->streams[i];
- if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
- st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
- mov->nb_streams++;
- }
- }
- }
-
- if (mov->mode == MODE_MOV) {
- tmcd_track = mov->nb_streams;
-
- /* +1 tmcd track for each video stream with a timecode */
- for (i = 0; i < s->nb_streams; i++) {
- AVStream *st = s->streams[i];
- if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
- (global_tcr || av_dict_get(st->metadata, "timecode", NULL, 0)))
- mov->nb_meta_tmcd++;
- }
-
- /* check if there is already a tmcd track to remux */
- if (mov->nb_meta_tmcd) {
- for (i = 0; i < s->nb_streams; i++) {
- AVStream *st = s->streams[i];
- if (st->codec->codec_tag == MKTAG('t','m','c','d')) {
- av_log(s, AV_LOG_WARNING, "You requested a copy of the original timecode track "
- "so timecode metadata are now ignored\n");
- mov->nb_meta_tmcd = 0;
- }
- }
- }
-
- mov->nb_streams += mov->nb_meta_tmcd;
- }
-
- // Reserve an extra stream for chapters for the case where chapters
- // are written in the trailer
- mov->tracks = av_mallocz((mov->nb_streams + 1) * sizeof(*mov->tracks));
- if (!mov->tracks)
- return AVERROR(ENOMEM);
-
- for (i = 0; i < s->nb_streams; i++) {
- AVStream *st= s->streams[i];
- MOVTrack *track= &mov->tracks[i];
- AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
-
- track->enc = st->codec;
- track->st = st;
- track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
- if (track->language < 0)
- track->language = 0;
- track->mode = mov->mode;
- track->tag = mov_find_codec_tag(s, track);
- if (!track->tag) {
- av_log(s, AV_LOG_ERROR, "Could not find tag for codec %s in stream #%d, "
- "codec not currently supported in container\n",
- avcodec_get_name(st->codec->codec_id), i);
- ret = AVERROR(EINVAL);
- goto error;
- }
- /* If hinting of this track is enabled by a later hint track,
- * this is updated. */
- track->hint_track = -1;
- track->start_dts = AV_NOPTS_VALUE;
- if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
- if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
- track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
- track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
- if (st->codec->width != 720 || (st->codec->height != 608 && st->codec->height != 512)) {
- av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
- ret = AVERROR(EINVAL);
- goto error;
- }
- track->height = track->tag >> 24 == 'n' ? 486 : 576;
- }
- if (mov->video_track_timescale) {
- track->timescale = mov->video_track_timescale;
- } else {
- track->timescale = st->codec->time_base.den;
- while(track->timescale < 10000)
- track->timescale *= 2;
- }
- if (track->mode == MODE_MOV && track->timescale > 100000)
- av_log(s, AV_LOG_WARNING,
- "WARNING codec timebase is very high. If duration is too long,\n"
- "file may not be playable by quicktime. Specify a shorter timebase\n"
- "or choose different container.\n");
- } else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
- track->timescale = st->codec->sample_rate;
- if (!st->codec->frame_size && !av_get_bits_per_sample(st->codec->codec_id)) {
- av_log(s, AV_LOG_WARNING, "track %d: codec frame size is not set\n", i);
- track->audio_vbr = 1;
- }else if (st->codec->codec_id == AV_CODEC_ID_ADPCM_MS ||
- st->codec->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
- st->codec->codec_id == AV_CODEC_ID_ILBC){
- if (!st->codec->block_align) {
- av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set for adpcm\n", i);
- ret = AVERROR(EINVAL);
- goto error;
- }
- track->sample_size = st->codec->block_align;
- }else if (st->codec->frame_size > 1){ /* assume compressed audio */
- track->audio_vbr = 1;
- }else{
- track->sample_size = (av_get_bits_per_sample(st->codec->codec_id) >> 3) * st->codec->channels;
- }
- if (st->codec->codec_id == AV_CODEC_ID_ILBC ||
- st->codec->codec_id == AV_CODEC_ID_ADPCM_IMA_QT) {
- track->audio_vbr = 1;
- }
- if (track->mode != MODE_MOV &&
- track->enc->codec_id == AV_CODEC_ID_MP3 && track->timescale < 16000) {
- av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not supported\n",
- i, track->enc->sample_rate);
- ret = AVERROR(EINVAL);
- goto error;
- }
- } else if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
- track->timescale = st->codec->time_base.den;
- } else if (st->codec->codec_type == AVMEDIA_TYPE_DATA) {
- track->timescale = st->codec->time_base.den;
- } else {
- track->timescale = MOV_TIMESCALE;
- }
- if (!track->height)
- track->height = st->codec->height;
- /* The ism specific timescale isn't mandatory, but is assumed by
- * some tools, such as mp4split. */
- if (mov->mode == MODE_ISM)
- track->timescale = 10000000;
-
- avpriv_set_pts_info(st, 64, 1, track->timescale);
-
- /* copy extradata if it exists */
- if (st->codec->extradata_size) {
- track->vos_len = st->codec->extradata_size;
- track->vos_data = av_malloc(track->vos_len);
- memcpy(track->vos_data, st->codec->extradata, track->vos_len);
- }
- }
-
- enable_tracks(s);
-
- if (mov->mode == MODE_ISM) {
- /* If no fragmentation options have been set, set a default. */
- if (!(mov->flags & (FF_MOV_FLAG_FRAG_KEYFRAME |
- FF_MOV_FLAG_FRAG_CUSTOM)) &&
- !mov->max_fragment_duration && !mov->max_fragment_size)
- mov->flags |= FF_MOV_FLAG_FRAG_KEYFRAME;
- }
-
- if (mov->reserved_moov_size){
- mov->reserved_moov_pos= avio_tell(pb);
- if (mov->reserved_moov_size > 0)
- avio_skip(pb, mov->reserved_moov_size);
- }
-
- if (!(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
- if (mov->flags & FF_MOV_FLAG_FASTSTART)
- mov->reserved_moov_pos = avio_tell(pb);
- mov_write_mdat_tag(pb, mov);
- }
-
- if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
- mov->time = ff_iso8601_to_unix_time(t->value);
- if (mov->time)
- mov->time += 0x7C25B080; // 1970 based -> 1904 based
-
- if (mov->chapter_track)
- if ((ret = mov_create_chapter_track(s, mov->chapter_track)) < 0)
- goto error;
-
- if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
- /* Initialize the hint tracks for each audio and video stream */
- for (i = 0; i < s->nb_streams; i++) {
- AVStream *st = s->streams[i];
- if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
- st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
- if ((ret = ff_mov_init_hinting(s, hint_track, i)) < 0)
- goto error;
- hint_track++;
- }
- }
- }
-
- if (mov->nb_meta_tmcd) {
- /* Initialize the tmcd tracks */
- for (i = 0; i < s->nb_streams; i++) {
- AVStream *st = s->streams[i];
- t = global_tcr;
-
- if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
- if (!t)
- t = av_dict_get(st->metadata, "timecode", NULL, 0);
- if (!t)
- continue;
- if ((ret = mov_create_timecode_track(s, tmcd_track, i, t->value)) < 0)
- goto error;
- tmcd_track++;
- }
- }
- }
-
- avio_flush(pb);
-
- if (mov->flags & FF_MOV_FLAG_ISML)
- mov_write_isml_manifest(pb, mov);
-
- if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
- mov_write_moov_tag(pb, mov, s);
- mov->fragments++;
- }
-
- return 0;
- error:
- mov_free(s);
- return ret;
-}
-
-static int get_moov_size(AVFormatContext *s)
-{
- int ret;
- AVIOContext *moov_buf;
- MOVMuxContext *mov = s->priv_data;
-
- if ((ret = ffio_open_null_buf(&moov_buf)) < 0)
- return ret;
- mov_write_moov_tag(moov_buf, mov, s);
- return ffio_close_null_buf(moov_buf);
-}
-
-/*
- * This function gets the moov size if moved to the top of the file: the chunk
- * offset table can switch between stco (32-bit entries) to co64 (64-bit
- * entries) when the moov is moved to the beginning, so the size of the moov
- * would change. It also updates the chunk offset tables.
- */
-static int compute_moov_size(AVFormatContext *s)
-{
- int i, moov_size, moov_size2;
- MOVMuxContext *mov = s->priv_data;
-
- moov_size = get_moov_size(s);
- if (moov_size < 0)
- return moov_size;
-
- for (i = 0; i < mov->nb_streams; i++)
- mov->tracks[i].data_offset += moov_size;
-
- moov_size2 = get_moov_size(s);
- if (moov_size2 < 0)
- return moov_size2;
-
- /* if the size changed, we just switched from stco to co64 and need to
- * update the offsets */
- if (moov_size2 != moov_size)
- for (i = 0; i < mov->nb_streams; i++)
- mov->tracks[i].data_offset += moov_size2 - moov_size;
-
- return moov_size2;
-}
-
-static int shift_data(AVFormatContext *s)
-{
- int ret = 0, moov_size;
- MOVMuxContext *mov = s->priv_data;
- int64_t pos, pos_end = avio_tell(s->pb);
- uint8_t *buf, *read_buf[2];
- int read_buf_id = 0;
- int read_size[2];
- AVIOContext *read_pb;
-
- moov_size = compute_moov_size(s);
- if (moov_size < 0)
- return moov_size;
-
- buf = av_malloc(moov_size * 2);
- if (!buf)
- return AVERROR(ENOMEM);
- read_buf[0] = buf;
- read_buf[1] = buf + moov_size;
-
- /* Shift the data: the AVIO context of the output can only be used for
- * writing, so we re-open the same output, but for reading. It also avoids
- * a read/seek/write/seek back and forth. */
- avio_flush(s->pb);
- ret = avio_open(&read_pb, s->filename, AVIO_FLAG_READ);
- if (ret < 0) {
- av_log(s, AV_LOG_ERROR, "Unable to re-open %s output file for "
- "the second pass (faststart)\n", s->filename);
- goto end;
- }
-
- /* mark the end of the shift to up to the last data we wrote, and get ready
- * for writing */
- pos_end = avio_tell(s->pb);
- avio_seek(s->pb, mov->reserved_moov_pos + moov_size, SEEK_SET);
-
- /* start reading at where the new moov will be placed */
- avio_seek(read_pb, mov->reserved_moov_pos, SEEK_SET);
- pos = avio_tell(read_pb);
-
-#define READ_BLOCK do { \
- read_size[read_buf_id] = avio_read(read_pb, read_buf[read_buf_id], moov_size); \
- read_buf_id ^= 1; \
-} while (0)
-
- /* shift data by chunk of at most moov_size */
- READ_BLOCK;
- do {
- int n;
- READ_BLOCK;
- n = read_size[read_buf_id];
- if (n <= 0)
- break;
- avio_write(s->pb, read_buf[read_buf_id], n);
- pos += n;
- } while (pos < pos_end);
- avio_close(read_pb);
-
-end:
- av_free(buf);
- return ret;
-}
-
-static int mov_write_trailer(AVFormatContext *s)
-{
- MOVMuxContext *mov = s->priv_data;
- AVIOContext *pb = s->pb;
- int res = 0;
- int i;
- int64_t moov_pos;
-
- /*
- * Before actually writing the trailer, make sure that there are no
- * dangling subtitles, that need a terminating sample.
- */
- for (i = 0; i < mov->nb_streams; i++) {
- MOVTrack *trk = &mov->tracks[i];
- if (trk->enc->codec_id == AV_CODEC_ID_MOV_TEXT &&
- !trk->last_sample_is_subtitle_end) {
- mov_write_subtitle_end_packet(s, i, trk->track_duration);
- trk->last_sample_is_subtitle_end = 1;
- }
- }
-
- // If there were no chapters when the header was written, but there
- // are chapters now, write them in the trailer. This only works
- // when we are not doing fragments.
- if (!mov->chapter_track && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
- if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters) {
- mov->chapter_track = mov->nb_streams++;
- if ((res = mov_create_chapter_track(s, mov->chapter_track)) < 0)
- goto error;
- }
- }
-
- if (!(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
- moov_pos = avio_tell(pb);
-
- /* Write size of mdat tag */
- if (mov->mdat_size + 8 <= UINT32_MAX) {
- avio_seek(pb, mov->mdat_pos, SEEK_SET);
- avio_wb32(pb, mov->mdat_size + 8);
- } else {
- /* overwrite 'wide' placeholder atom */
- avio_seek(pb, mov->mdat_pos - 8, SEEK_SET);
- /* special value: real atom size will be 64 bit value after
- * tag field */
- avio_wb32(pb, 1);
- ffio_wfourcc(pb, "mdat");
- avio_wb64(pb, mov->mdat_size + 16);
- }
- avio_seek(pb, mov->reserved_moov_size > 0 ? mov->reserved_moov_pos : moov_pos, SEEK_SET);
-
- if (mov->flags & FF_MOV_FLAG_FASTSTART) {
- av_log(s, AV_LOG_INFO, "Starting second pass: moving the moov atom to the beginning of the file\n");
- res = shift_data(s);
- if (res == 0) {
- avio_seek(s->pb, mov->reserved_moov_pos, SEEK_SET);
- mov_write_moov_tag(pb, mov, s);
- }
- } else if (mov->reserved_moov_size > 0) {
- int64_t size;
- mov_write_moov_tag(pb, mov, s);
- size = mov->reserved_moov_size - (avio_tell(pb) - mov->reserved_moov_pos);
- if (size < 8){
- av_log(s, AV_LOG_ERROR, "reserved_moov_size is too small, needed %"PRId64" additional\n", 8-size);
- return -1;
- }
- avio_wb32(pb, size);
- ffio_wfourcc(pb, "free");
- for (i = 0; i < size; i++)
- avio_w8(pb, 0);
- avio_seek(pb, moov_pos, SEEK_SET);
- } else {
- mov_write_moov_tag(pb, mov, s);
- }
- } else {
- mov_flush_fragment(s);
- mov_write_mfra_tag(pb, mov);
- }
-
- for (i = 0; i < mov->nb_streams; i++) {
- if (mov->flags & FF_MOV_FLAG_FRAGMENT &&
- mov->tracks[i].vc1_info.struct_offset && s->pb->seekable) {
- int64_t off = avio_tell(pb);
- uint8_t buf[7];
- if (mov_write_dvc1_structs(&mov->tracks[i], buf) >= 0) {
- avio_seek(pb, mov->tracks[i].vc1_info.struct_offset, SEEK_SET);
- avio_write(pb, buf, 7);
- avio_seek(pb, off, SEEK_SET);
- }
- }
- }
-
-error:
- mov_free(s);
-
- return res;
-}
-
-#if CONFIG_MOV_MUXER
-MOV_CLASS(mov)
-AVOutputFormat ff_mov_muxer = {
- .name = "mov",
- .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
- .extensions = "mov",
- .priv_data_size = sizeof(MOVMuxContext),
- .audio_codec = AV_CODEC_ID_AAC,
- .video_codec = CONFIG_LIBX264_ENCODER ?
- AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
- .write_header = mov_write_header,
- .write_packet = mov_write_packet,
- .write_trailer = mov_write_trailer,
- .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
- .codec_tag = (const AVCodecTag* const []){
- ff_codec_movvideo_tags, ff_codec_movaudio_tags, 0
- },
- .priv_class = &mov_muxer_class,
-};
-#endif
-#if CONFIG_TGP_MUXER
-MOV_CLASS(tgp)
-AVOutputFormat ff_tgp_muxer = {
- .name = "3gp",
- .long_name = NULL_IF_CONFIG_SMALL("3GP (3GPP file format)"),
- .extensions = "3gp",
- .priv_data_size = sizeof(MOVMuxContext),
- .audio_codec = AV_CODEC_ID_AMR_NB,
- .video_codec = AV_CODEC_ID_H263,
- .write_header = mov_write_header,
- .write_packet = mov_write_packet,
- .write_trailer = mov_write_trailer,
- .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
- .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
- .priv_class = &tgp_muxer_class,
-};
-#endif
-#if CONFIG_MP4_MUXER
-MOV_CLASS(mp4)
-AVOutputFormat ff_mp4_muxer = {
- .name = "mp4",
- .long_name = NULL_IF_CONFIG_SMALL("MP4 (MPEG-4 Part 14)"),
- .mime_type = "application/mp4",
- .extensions = "mp4",
- .priv_data_size = sizeof(MOVMuxContext),
- .audio_codec = AV_CODEC_ID_AAC,
- .video_codec = CONFIG_LIBX264_ENCODER ?
- AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
- .write_header = mov_write_header,
- .write_packet = mov_write_packet,
- .write_trailer = mov_write_trailer,
- .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
- .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
- .priv_class = &mp4_muxer_class,
-};
-#endif
-#if CONFIG_PSP_MUXER
-MOV_CLASS(psp)
-AVOutputFormat ff_psp_muxer = {
- .name = "psp",
- .long_name = NULL_IF_CONFIG_SMALL("PSP MP4 (MPEG-4 Part 14)"),
- .extensions = "mp4,psp",
- .priv_data_size = sizeof(MOVMuxContext),
- .audio_codec = AV_CODEC_ID_AAC,
- .video_codec = CONFIG_LIBX264_ENCODER ?
- AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
- .write_header = mov_write_header,
- .write_packet = mov_write_packet,
- .write_trailer = mov_write_trailer,
- .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
- .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
- .priv_class = &psp_muxer_class,
-};
-#endif
-#if CONFIG_TG2_MUXER
-MOV_CLASS(tg2)
-AVOutputFormat ff_tg2_muxer = {
- .name = "3g2",
- .long_name = NULL_IF_CONFIG_SMALL("3GP2 (3GPP2 file format)"),
- .extensions = "3g2",
- .priv_data_size = sizeof(MOVMuxContext),
- .audio_codec = AV_CODEC_ID_AMR_NB,
- .video_codec = AV_CODEC_ID_H263,
- .write_header = mov_write_header,
- .write_packet = mov_write_packet,
- .write_trailer = mov_write_trailer,
- .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
- .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
- .priv_class = &tg2_muxer_class,
-};
-#endif
-#if CONFIG_IPOD_MUXER
-MOV_CLASS(ipod)
-AVOutputFormat ff_ipod_muxer = {
- .name = "ipod",
- .long_name = NULL_IF_CONFIG_SMALL("iPod H.264 MP4 (MPEG-4 Part 14)"),
- .mime_type = "application/mp4",
- .extensions = "m4v,m4a",
- .priv_data_size = sizeof(MOVMuxContext),
- .audio_codec = AV_CODEC_ID_AAC,
- .video_codec = AV_CODEC_ID_H264,
- .write_header = mov_write_header,
- .write_packet = mov_write_packet,
- .write_trailer = mov_write_trailer,
- .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
- .codec_tag = (const AVCodecTag* const []){ codec_ipod_tags, 0 },
- .priv_class = &ipod_muxer_class,
-};
-#endif
-#if CONFIG_ISMV_MUXER
-MOV_CLASS(ismv)
-AVOutputFormat ff_ismv_muxer = {
- .name = "ismv",
- .long_name = NULL_IF_CONFIG_SMALL("ISMV/ISMA (Smooth Streaming)"),
- .mime_type = "application/mp4",
- .extensions = "ismv,isma",
- .priv_data_size = sizeof(MOVMuxContext),
- .audio_codec = AV_CODEC_ID_AAC,
- .video_codec = AV_CODEC_ID_H264,
- .write_header = mov_write_header,
- .write_packet = mov_write_packet,
- .write_trailer = mov_write_trailer,
- .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
- .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
- .priv_class = &ismv_muxer_class,
-};
-#endif
-#if CONFIG_F4V_MUXER
-MOV_CLASS(f4v)
-AVOutputFormat ff_f4v_muxer = {
- .name = "f4v",
- .long_name = NULL_IF_CONFIG_SMALL("F4V Adobe Flash Video"),
- .mime_type = "application/f4v",
- .extensions = "f4v",
- .priv_data_size = sizeof(MOVMuxContext),
- .audio_codec = AV_CODEC_ID_AAC,
- .video_codec = AV_CODEC_ID_H264,
- .write_header = mov_write_header,
- .write_packet = mov_write_packet,
- .write_trailer = mov_write_trailer,
- .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH,
- .codec_tag = (const AVCodecTag* const []){ codec_f4v_tags, 0 },
- .priv_class = &f4v_muxer_class,
-};
-#endif
generated by cgit v1.2.3 (git 2.39.1) at 2025-12-06 10:07:13 +0000