diff options
| author | Tim Redfern <tim@eclectronics.org> | 2014-02-17 13:36:38 +0000 |
|---|---|---|
| committer | Tim Redfern <tim@eclectronics.org> | 2014-02-17 13:36:38 +0000 |
| commit | 22e28216336da876e1fd17f380ce42eaf1446769 (patch) | |
| tree | 444dad3dc7e2656992d29f34f7bce31970c122a5 /ffmpeg/libavformat/aiffenc.c | |
| parent | ae5e8541f6e06e64c28719467cdf366ac57aff31 (diff) | |
chasing indexing error
Diffstat (limited to 'ffmpeg/libavformat/aiffenc.c')
| -rw-r--r-- | ffmpeg/libavformat/aiffenc.c | 334 |
1 files changed, 0 insertions, 334 deletions
diff --git a/ffmpeg/libavformat/aiffenc.c b/ffmpeg/libavformat/aiffenc.c deleted file mode 100644 index 6e3d8bc..0000000 --- a/ffmpeg/libavformat/aiffenc.c +++ /dev/null @@ -1,334 +0,0 @@ -/* - * AIFF/AIFF-C muxer - * Copyright (c) 2006 Patrick Guimond - * - * 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 "libavutil/intfloat.h" -#include "libavutil/opt.h" -#include "avformat.h" -#include "internal.h" -#include "aiff.h" -#include "avio_internal.h" -#include "isom.h" -#include "id3v2.h" - -typedef struct { - const AVClass *class; - int64_t form; - int64_t frames; - int64_t ssnd; - int audio_stream_idx; - AVPacketList *pict_list; - int write_id3v2; - int id3v2_version; -} AIFFOutputContext; - -static int put_id3v2_tags(AVFormatContext *s, AIFFOutputContext *aiff) -{ - int ret; - uint64_t pos, end, size; - ID3v2EncContext id3v2 = { 0 }; - AVIOContext *pb = s->pb; - AVPacketList *pict_list = aiff->pict_list; - - if (!pb->seekable) - return 0; - - if (!s->metadata && !aiff->pict_list) - return 0; - - avio_wl32(pb, MKTAG('I', 'D', '3', ' ')); - avio_wb32(pb, 0); - pos = avio_tell(pb); - - ff_id3v2_start(&id3v2, pb, aiff->id3v2_version, ID3v2_DEFAULT_MAGIC); - ff_id3v2_write_metadata(s, &id3v2); - while (pict_list) { - if ((ret = ff_id3v2_write_apic(s, &id3v2, &pict_list->pkt)) < 0) - return ret; - pict_list = pict_list->next; - } - ff_id3v2_finish(&id3v2, pb); - - end = avio_tell(pb); - size = end - pos; - - /* Update chunk size */ - avio_seek(pb, pos - 4, SEEK_SET); - avio_wb32(pb, size); - avio_seek(pb, end, SEEK_SET); - - if (size & 1) - avio_w8(pb, 0); - - return 0; -} - -static void put_meta(AVFormatContext *s, const char *key, uint32_t id) -{ - AVDictionaryEntry *tag; - AVIOContext *pb = s->pb; - - if (tag = av_dict_get(s->metadata, key, NULL, 0)) { - int size = strlen(tag->value); - - avio_wl32(pb, id); - avio_wb32(pb, FFALIGN(size, 2)); - avio_write(pb, tag->value, size); - if (size & 1) - avio_w8(pb, 0); - } -} - -static int aiff_write_header(AVFormatContext *s) -{ - AIFFOutputContext *aiff = s->priv_data; - AVIOContext *pb = s->pb; - AVCodecContext *enc; - uint64_t sample_rate; - int i, aifc = 0; - - aiff->audio_stream_idx = -1; - for (i = 0; i < s->nb_streams; i++) { - AVStream *st = s->streams[i]; - if (aiff->audio_stream_idx < 0 && st->codec->codec_type == AVMEDIA_TYPE_AUDIO) { - aiff->audio_stream_idx = i; - } else if (st->codec->codec_type != AVMEDIA_TYPE_VIDEO) { - av_log(s, AV_LOG_ERROR, "Only audio streams and pictures are allowed in AIFF.\n"); - return AVERROR(EINVAL); - } - } - if (aiff->audio_stream_idx < 0) { - av_log(s, AV_LOG_ERROR, "No audio stream present.\n"); - return AVERROR(EINVAL); - } - - enc = s->streams[aiff->audio_stream_idx]->codec; - - /* First verify if format is ok */ - if (!enc->codec_tag) - return -1; - if (enc->codec_tag != MKTAG('N','O','N','E')) - aifc = 1; - - /* FORM AIFF header */ - ffio_wfourcc(pb, "FORM"); - aiff->form = avio_tell(pb); - avio_wb32(pb, 0); /* file length */ - ffio_wfourcc(pb, aifc ? "AIFC" : "AIFF"); - - if (aifc) { // compressed audio - if (!enc->block_align) { - av_log(s, AV_LOG_ERROR, "block align not set\n"); - return -1; - } - /* Version chunk */ - ffio_wfourcc(pb, "FVER"); - avio_wb32(pb, 4); - avio_wb32(pb, 0xA2805140); - } - - if (enc->channels > 2 && enc->channel_layout) { - ffio_wfourcc(pb, "CHAN"); - avio_wb32(pb, 12); - ff_mov_write_chan(pb, enc->channel_layout); - } - - put_meta(s, "title", MKTAG('N', 'A', 'M', 'E')); - put_meta(s, "author", MKTAG('A', 'U', 'T', 'H')); - put_meta(s, "copyright", MKTAG('(', 'c', ')', ' ')); - put_meta(s, "comment", MKTAG('A', 'N', 'N', 'O')); - - /* Common chunk */ - ffio_wfourcc(pb, "COMM"); - avio_wb32(pb, aifc ? 24 : 18); /* size */ - avio_wb16(pb, enc->channels); /* Number of channels */ - - aiff->frames = avio_tell(pb); - avio_wb32(pb, 0); /* Number of frames */ - - if (!enc->bits_per_coded_sample) - enc->bits_per_coded_sample = av_get_bits_per_sample(enc->codec_id); - if (!enc->bits_per_coded_sample) { - av_log(s, AV_LOG_ERROR, "could not compute bits per sample\n"); - return -1; - } - if (!enc->block_align) - enc->block_align = (enc->bits_per_coded_sample * enc->channels) >> 3; - - avio_wb16(pb, enc->bits_per_coded_sample); /* Sample size */ - - sample_rate = av_double2int(enc->sample_rate); - avio_wb16(pb, (sample_rate >> 52) + (16383 - 1023)); - avio_wb64(pb, UINT64_C(1) << 63 | sample_rate << 11); - - if (aifc) { - avio_wl32(pb, enc->codec_tag); - avio_wb16(pb, 0); - } - - if (enc->codec_tag == MKTAG('Q','D','M','2') && enc->extradata_size) { - ffio_wfourcc(pb, "wave"); - avio_wb32(pb, enc->extradata_size); - avio_write(pb, enc->extradata, enc->extradata_size); - } - - /* Sound data chunk */ - ffio_wfourcc(pb, "SSND"); - aiff->ssnd = avio_tell(pb); /* Sound chunk size */ - avio_wb32(pb, 0); /* Sound samples data size */ - avio_wb32(pb, 0); /* Data offset */ - avio_wb32(pb, 0); /* Block-size (block align) */ - - avpriv_set_pts_info(s->streams[aiff->audio_stream_idx], 64, 1, - s->streams[aiff->audio_stream_idx]->codec->sample_rate); - - /* Data is starting here */ - avio_flush(pb); - - return 0; -} - -static int aiff_write_packet(AVFormatContext *s, AVPacket *pkt) -{ - AIFFOutputContext *aiff = s->priv_data; - AVIOContext *pb = s->pb; - if (pkt->stream_index == aiff->audio_stream_idx) - avio_write(pb, pkt->data, pkt->size); - else { - int ret; - AVPacketList *pict_list, *last; - - if (s->streams[pkt->stream_index]->codec->codec_type != AVMEDIA_TYPE_VIDEO) - return 0; - - /* warn only once for each stream */ - if (s->streams[pkt->stream_index]->nb_frames == 1) { - av_log(s, AV_LOG_WARNING, "Got more than one picture in stream %d," - " ignoring.\n", pkt->stream_index); - } - if (s->streams[pkt->stream_index]->nb_frames >= 1) - return 0; - - pict_list = av_mallocz(sizeof(AVPacketList)); - if (!pict_list) - return AVERROR(ENOMEM); - - if ((ret = av_copy_packet(&pict_list->pkt, pkt)) < 0) { - av_freep(&pict_list); - return ret; - } - - if (!aiff->pict_list) - aiff->pict_list = pict_list; - else { - last = aiff->pict_list; - while (last->next) - last = last->next; - last->next = pict_list; - } - } - - return 0; -} - -static int aiff_write_trailer(AVFormatContext *s) -{ - int ret; - AVIOContext *pb = s->pb; - AIFFOutputContext *aiff = s->priv_data; - AVPacketList *pict_list = aiff->pict_list; - AVCodecContext *enc = s->streams[aiff->audio_stream_idx]->codec; - - /* Chunks sizes must be even */ - int64_t file_size, end_size; - end_size = file_size = avio_tell(pb); - if (file_size & 1) { - avio_w8(pb, 0); - end_size++; - } - - if (s->pb->seekable) { - /* Number of sample frames */ - avio_seek(pb, aiff->frames, SEEK_SET); - avio_wb32(pb, (file_size-aiff->ssnd-12)/enc->block_align); - - /* Sound Data chunk size */ - avio_seek(pb, aiff->ssnd, SEEK_SET); - avio_wb32(pb, file_size - aiff->ssnd - 4); - - /* return to the end */ - avio_seek(pb, end_size, SEEK_SET); - - /* Write ID3 tags */ - if (aiff->write_id3v2) - if ((ret = put_id3v2_tags(s, aiff)) < 0) - return ret; - - /* File length */ - file_size = avio_tell(pb); - avio_seek(pb, aiff->form, SEEK_SET); - avio_wb32(pb, file_size - aiff->form - 4); - - avio_flush(pb); - } - - while (pict_list) { - AVPacketList *next = pict_list->next; - av_free_packet(&pict_list->pkt); - av_freep(&pict_list); - pict_list = next; - } - - return 0; -} - -#define OFFSET(x) offsetof(AIFFOutputContext, x) -#define ENC AV_OPT_FLAG_ENCODING_PARAM -static const AVOption options[] = { - { "write_id3v2", "Enable ID3 tags writing.", - OFFSET(write_id3v2), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, ENC }, - { "id3v2_version", "Select ID3v2 version to write. Currently 3 and 4 are supported.", - OFFSET(id3v2_version), AV_OPT_TYPE_INT, {.i64 = 4}, 3, 4, ENC }, - { NULL }, -}; - -static const AVClass aiff_muxer_class = { - .class_name = "AIFF muxer", - .item_name = av_default_item_name, - .option = options, - .version = LIBAVUTIL_VERSION_INT, -}; - -AVOutputFormat ff_aiff_muxer = { - .name = "aiff", - .long_name = NULL_IF_CONFIG_SMALL("Audio IFF"), - .mime_type = "audio/aiff", - .extensions = "aif,aiff,afc,aifc", - .priv_data_size = sizeof(AIFFOutputContext), - .audio_codec = AV_CODEC_ID_PCM_S16BE, - .video_codec = AV_CODEC_ID_PNG, - .write_header = aiff_write_header, - .write_packet = aiff_write_packet, - .write_trailer = aiff_write_trailer, - .codec_tag = (const AVCodecTag* const []){ ff_codec_aiff_tags, 0 }, - .priv_class = &aiff_muxer_class, -}; |
