diff options
Diffstat (limited to 'ffmpeg/tools/ismindex.c')
| -rw-r--r-- | ffmpeg/tools/ismindex.c | 565 |
1 files changed, 0 insertions, 565 deletions
diff --git a/ffmpeg/tools/ismindex.c b/ffmpeg/tools/ismindex.c deleted file mode 100644 index 4dc3e12..0000000 --- a/ffmpeg/tools/ismindex.c +++ /dev/null @@ -1,565 +0,0 @@ -/* - * Copyright (c) 2012 Martin Storsjo - * - * 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 - */ - -/* - * To create a simple file for smooth streaming: - * ffmpeg <normal input/transcoding options> -movflags frag_keyframe foo.ismv - * ismindex -n foo foo.ismv - * This step creates foo.ism and foo.ismc that is required by IIS for - * serving it. - * - * To pre-split files for serving as static files by a web server without - * any extra server support, create the ismv file as above, and split it: - * ismindex -split foo.ismv - * This step creates a file Manifest and directories QualityLevel(...), - * that can be read directly by a smooth streaming player. - */ - -#include <stdio.h> -#include <string.h> - -#include "cmdutils.h" - -#include "libavformat/avformat.h" -#include "libavformat/os_support.h" -#include "libavutil/intreadwrite.h" -#include "libavutil/mathematics.h" - -static int usage(const char *argv0, int ret) -{ - fprintf(stderr, "%s [-split] [-n basename] file1 [file2] ...\n", argv0); - return ret; -} - -struct MoofOffset { - int64_t time; - int64_t offset; - int64_t duration; -}; - -struct Track { - const char *name; - int64_t duration; - int bitrate; - int track_id; - int is_audio, is_video; - int width, height; - int chunks; - int sample_rate, channels; - uint8_t *codec_private; - int codec_private_size; - struct MoofOffset *offsets; - int timescale; - const char *fourcc; - int blocksize; - int tag; -}; - -struct Tracks { - int nb_tracks; - int64_t duration; - struct Track **tracks; - int video_track, audio_track; - int nb_video_tracks, nb_audio_tracks; -}; - -static int copy_tag(AVIOContext *in, AVIOContext *out, int32_t tag_name) -{ - int32_t size, tag; - - size = avio_rb32(in); - tag = avio_rb32(in); - avio_wb32(out, size); - avio_wb32(out, tag); - if (tag != tag_name) - return -1; - size -= 8; - while (size > 0) { - char buf[1024]; - int len = FFMIN(sizeof(buf), size); - if (avio_read(in, buf, len) != len) - break; - avio_write(out, buf, len); - size -= len; - } - return 0; -} - -static int write_fragment(const char *filename, AVIOContext *in) -{ - AVIOContext *out = NULL; - int ret; - - if ((ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, NULL, NULL)) < 0) - return ret; - copy_tag(in, out, MKBETAG('m', 'o', 'o', 'f')); - copy_tag(in, out, MKBETAG('m', 'd', 'a', 't')); - - avio_flush(out); - avio_close(out); - - return ret; -} - -static int write_fragments(struct Tracks *tracks, int start_index, - AVIOContext *in) -{ - char dirname[100], filename[500]; - int i, j; - - for (i = start_index; i < tracks->nb_tracks; i++) { - struct Track *track = tracks->tracks[i]; - const char *type = track->is_video ? "video" : "audio"; - snprintf(dirname, sizeof(dirname), "QualityLevels(%d)", track->bitrate); - if (mkdir(dirname, 0777) == -1) - return AVERROR(errno); - for (j = 0; j < track->chunks; j++) { - snprintf(filename, sizeof(filename), "%s/Fragments(%s=%"PRId64")", - dirname, type, track->offsets[j].time); - avio_seek(in, track->offsets[j].offset, SEEK_SET); - write_fragment(filename, in); - } - } - return 0; -} - -static int read_tfra(struct Tracks *tracks, int start_index, AVIOContext *f) -{ - int ret = AVERROR_EOF, track_id; - int version, fieldlength, i, j; - int64_t pos = avio_tell(f); - uint32_t size = avio_rb32(f); - struct Track *track = NULL; - - if (avio_rb32(f) != MKBETAG('t', 'f', 'r', 'a')) - goto fail; - version = avio_r8(f); - avio_rb24(f); - track_id = avio_rb32(f); /* track id */ - for (i = start_index; i < tracks->nb_tracks && !track; i++) - if (tracks->tracks[i]->track_id == track_id) - track = tracks->tracks[i]; - if (!track) { - /* Ok, continue parsing the next atom */ - ret = 0; - goto fail; - } - fieldlength = avio_rb32(f); - track->chunks = avio_rb32(f); - track->offsets = av_mallocz(sizeof(*track->offsets) * track->chunks); - if (!track->offsets) { - ret = AVERROR(ENOMEM); - goto fail; - } - for (i = 0; i < track->chunks; i++) { - if (version == 1) { - track->offsets[i].time = avio_rb64(f); - track->offsets[i].offset = avio_rb64(f); - } else { - track->offsets[i].time = avio_rb32(f); - track->offsets[i].offset = avio_rb32(f); - } - for (j = 0; j < ((fieldlength >> 4) & 3) + 1; j++) - avio_r8(f); - for (j = 0; j < ((fieldlength >> 2) & 3) + 1; j++) - avio_r8(f); - for (j = 0; j < ((fieldlength >> 0) & 3) + 1; j++) - avio_r8(f); - if (i > 0) - track->offsets[i - 1].duration = track->offsets[i].time - - track->offsets[i - 1].time; - } - if (track->chunks > 0) - track->offsets[track->chunks - 1].duration = track->duration - - track->offsets[track->chunks - 1].time; - ret = 0; - -fail: - avio_seek(f, pos + size, SEEK_SET); - return ret; -} - -static int read_mfra(struct Tracks *tracks, int start_index, - const char *file, int split) -{ - int err = 0; - AVIOContext *f = NULL; - int32_t mfra_size; - - if ((err = avio_open2(&f, file, AVIO_FLAG_READ, NULL, NULL)) < 0) - goto fail; - avio_seek(f, avio_size(f) - 4, SEEK_SET); - mfra_size = avio_rb32(f); - avio_seek(f, -mfra_size, SEEK_CUR); - if (avio_rb32(f) != mfra_size) { - err = AVERROR_INVALIDDATA; - goto fail; - } - if (avio_rb32(f) != MKBETAG('m', 'f', 'r', 'a')) { - err = AVERROR_INVALIDDATA; - goto fail; - } - while (!read_tfra(tracks, start_index, f)) { - /* Empty */ - } - - if (split) - err = write_fragments(tracks, start_index, f); - -fail: - if (f) - avio_close(f); - if (err) - fprintf(stderr, "Unable to read the MFRA atom in %s\n", file); - return err; -} - -static int get_private_data(struct Track *track, AVCodecContext *codec) -{ - track->codec_private_size = codec->extradata_size; - track->codec_private = av_mallocz(codec->extradata_size); - if (!track->codec_private) - return AVERROR(ENOMEM); - memcpy(track->codec_private, codec->extradata, codec->extradata_size); - return 0; -} - -static int get_video_private_data(struct Track *track, AVCodecContext *codec) -{ - AVIOContext *io = NULL; - uint16_t sps_size, pps_size; - int err = AVERROR(EINVAL); - - if (codec->codec_id == AV_CODEC_ID_VC1) - return get_private_data(track, codec); - - if (avio_open_dyn_buf(&io) < 0) { - err = AVERROR(ENOMEM); - goto fail; - } - if (codec->extradata_size < 11 || codec->extradata[0] != 1) - goto fail; - sps_size = AV_RB16(&codec->extradata[6]); - if (11 + sps_size > codec->extradata_size) - goto fail; - avio_wb32(io, 0x00000001); - avio_write(io, &codec->extradata[8], sps_size); - pps_size = AV_RB16(&codec->extradata[9 + sps_size]); - if (11 + sps_size + pps_size > codec->extradata_size) - goto fail; - avio_wb32(io, 0x00000001); - avio_write(io, &codec->extradata[11 + sps_size], pps_size); - err = 0; - -fail: - track->codec_private_size = avio_close_dyn_buf(io, &track->codec_private); - return err; -} - -static int handle_file(struct Tracks *tracks, const char *file, int split) -{ - AVFormatContext *ctx = NULL; - int err = 0, i, orig_tracks = tracks->nb_tracks; - char errbuf[50], *ptr; - struct Track *track; - - err = avformat_open_input(&ctx, file, NULL, NULL); - if (err < 0) { - av_strerror(err, errbuf, sizeof(errbuf)); - fprintf(stderr, "Unable to open %s: %s\n", file, errbuf); - return 1; - } - - err = avformat_find_stream_info(ctx, NULL); - if (err < 0) { - av_strerror(err, errbuf, sizeof(errbuf)); - fprintf(stderr, "Unable to identify %s: %s\n", file, errbuf); - goto fail; - } - - if (ctx->nb_streams < 1) { - fprintf(stderr, "No streams found in %s\n", file); - goto fail; - } - - for (i = 0; i < ctx->nb_streams; i++) { - struct Track **temp; - AVStream *st = ctx->streams[i]; - track = av_mallocz(sizeof(*track)); - if (!track) { - err = AVERROR(ENOMEM); - goto fail; - } - temp = av_realloc(tracks->tracks, - sizeof(*tracks->tracks) * (tracks->nb_tracks + 1)); - if (!temp) { - av_free(track); - err = AVERROR(ENOMEM); - goto fail; - } - tracks->tracks = temp; - tracks->tracks[tracks->nb_tracks] = track; - - track->name = file; - if ((ptr = strrchr(file, '/')) != NULL) - track->name = ptr + 1; - - track->bitrate = st->codec->bit_rate; - track->track_id = st->id; - track->timescale = st->time_base.den; - track->duration = st->duration; - track->is_audio = st->codec->codec_type == AVMEDIA_TYPE_AUDIO; - track->is_video = st->codec->codec_type == AVMEDIA_TYPE_VIDEO; - - if (!track->is_audio && !track->is_video) { - fprintf(stderr, - "Track %d in %s is neither video nor audio, skipping\n", - track->track_id, file); - av_freep(&tracks->tracks[tracks->nb_tracks]); - continue; - } - - tracks->duration = FFMAX(tracks->duration, - av_rescale_rnd(track->duration, AV_TIME_BASE, - track->timescale, AV_ROUND_UP)); - - if (track->is_audio) { - if (tracks->audio_track < 0) - tracks->audio_track = tracks->nb_tracks; - tracks->nb_audio_tracks++; - track->channels = st->codec->channels; - track->sample_rate = st->codec->sample_rate; - if (st->codec->codec_id == AV_CODEC_ID_AAC) { - track->fourcc = "AACL"; - track->tag = 255; - track->blocksize = 4; - } else if (st->codec->codec_id == AV_CODEC_ID_WMAPRO) { - track->fourcc = "WMAP"; - track->tag = st->codec->codec_tag; - track->blocksize = st->codec->block_align; - } - get_private_data(track, st->codec); - } - if (track->is_video) { - if (tracks->video_track < 0) - tracks->video_track = tracks->nb_tracks; - tracks->nb_video_tracks++; - track->width = st->codec->width; - track->height = st->codec->height; - if (st->codec->codec_id == AV_CODEC_ID_H264) - track->fourcc = "H264"; - else if (st->codec->codec_id == AV_CODEC_ID_VC1) - track->fourcc = "WVC1"; - get_video_private_data(track, st->codec); - } - - tracks->nb_tracks++; - } - - avformat_close_input(&ctx); - - err = read_mfra(tracks, orig_tracks, file, split); - -fail: - if (ctx) - avformat_close_input(&ctx); - return err; -} - -static void output_server_manifest(struct Tracks *tracks, - const char *basename) -{ - char filename[1000]; - FILE *out; - int i; - - snprintf(filename, sizeof(filename), "%s.ism", basename); - out = fopen(filename, "w"); - if (!out) { - perror(filename); - return; - } - fprintf(out, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"); - fprintf(out, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n"); - fprintf(out, "\t<head>\n"); - fprintf(out, "\t\t<meta name=\"clientManifestRelativePath\" " - "content=\"%s.ismc\" />\n", basename); - fprintf(out, "\t</head>\n"); - fprintf(out, "\t<body>\n"); - fprintf(out, "\t\t<switch>\n"); - for (i = 0; i < tracks->nb_tracks; i++) { - struct Track *track = tracks->tracks[i]; - const char *type = track->is_video ? "video" : "audio"; - fprintf(out, "\t\t\t<%s src=\"%s\" systemBitrate=\"%d\">\n", - type, track->name, track->bitrate); - fprintf(out, "\t\t\t\t<param name=\"trackID\" value=\"%d\" " - "valueType=\"data\" />\n", track->track_id); - fprintf(out, "\t\t\t</%s>\n", type); - } - fprintf(out, "\t\t</switch>\n"); - fprintf(out, "\t</body>\n"); - fprintf(out, "</smil>\n"); - fclose(out); -} - -static void print_track_chunks(FILE *out, struct Tracks *tracks, int main, - const char *type) -{ - int i, j; - struct Track *track = tracks->tracks[main]; - for (i = 0; i < track->chunks; i++) { - for (j = main + 1; j < tracks->nb_tracks; j++) { - if (tracks->tracks[j]->is_audio == track->is_audio && - track->offsets[i].duration != tracks->tracks[j]->offsets[i].duration) - fprintf(stderr, "Mismatched duration of %s chunk %d in %s and %s\n", - type, i, track->name, tracks->tracks[j]->name); - } - fprintf(out, "\t\t<c n=\"%d\" d=\"%"PRId64"\" />\n", - i, track->offsets[i].duration); - } -} - -static void output_client_manifest(struct Tracks *tracks, - const char *basename, int split) -{ - char filename[1000]; - FILE *out; - int i, j; - - if (split) - snprintf(filename, sizeof(filename), "Manifest"); - else - snprintf(filename, sizeof(filename), "%s.ismc", basename); - out = fopen(filename, "w"); - if (!out) { - perror(filename); - return; - } - fprintf(out, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"); - fprintf(out, "<SmoothStreamingMedia MajorVersion=\"2\" MinorVersion=\"0\" " - "Duration=\"%"PRId64 "\">\n", tracks->duration * 10); - if (tracks->video_track >= 0) { - struct Track *track = tracks->tracks[tracks->video_track]; - struct Track *first_track = track; - int index = 0; - fprintf(out, - "\t<StreamIndex Type=\"video\" QualityLevels=\"%d\" " - "Chunks=\"%d\" " - "Url=\"QualityLevels({bitrate})/Fragments(video={start time})\">\n", - tracks->nb_video_tracks, track->chunks); - for (i = 0; i < tracks->nb_tracks; i++) { - track = tracks->tracks[i]; - if (!track->is_video) - continue; - fprintf(out, - "\t\t<QualityLevel Index=\"%d\" Bitrate=\"%d\" " - "FourCC=\"%s\" MaxWidth=\"%d\" MaxHeight=\"%d\" " - "CodecPrivateData=\"", - index, track->bitrate, track->fourcc, track->width, track->height); - for (j = 0; j < track->codec_private_size; j++) - fprintf(out, "%02X", track->codec_private[j]); - fprintf(out, "\" />\n"); - index++; - if (track->chunks != first_track->chunks) - fprintf(stderr, "Mismatched number of video chunks in %s and %s\n", - track->name, first_track->name); - } - print_track_chunks(out, tracks, tracks->video_track, "video"); - fprintf(out, "\t</StreamIndex>\n"); - } - if (tracks->audio_track >= 0) { - struct Track *track = tracks->tracks[tracks->audio_track]; - struct Track *first_track = track; - int index = 0; - fprintf(out, - "\t<StreamIndex Type=\"audio\" QualityLevels=\"%d\" " - "Chunks=\"%d\" " - "Url=\"QualityLevels({bitrate})/Fragments(audio={start time})\">\n", - tracks->nb_audio_tracks, track->chunks); - for (i = 0; i < tracks->nb_tracks; i++) { - track = tracks->tracks[i]; - if (!track->is_audio) - continue; - fprintf(out, - "\t\t<QualityLevel Index=\"%d\" Bitrate=\"%d\" " - "FourCC=\"%s\" SamplingRate=\"%d\" Channels=\"%d\" " - "BitsPerSample=\"16\" PacketSize=\"%d\" " - "AudioTag=\"%d\" CodecPrivateData=\"", - index, track->bitrate, track->fourcc, track->sample_rate, - track->channels, track->blocksize, track->tag); - for (j = 0; j < track->codec_private_size; j++) - fprintf(out, "%02X", track->codec_private[j]); - fprintf(out, "\" />\n"); - index++; - if (track->chunks != first_track->chunks) - fprintf(stderr, "Mismatched number of audio chunks in %s and %s\n", - track->name, first_track->name); - } - print_track_chunks(out, tracks, tracks->audio_track, "audio"); - fprintf(out, "\t</StreamIndex>\n"); - } - fprintf(out, "</SmoothStreamingMedia>\n"); - fclose(out); -} - -static void clean_tracks(struct Tracks *tracks) -{ - int i; - for (i = 0; i < tracks->nb_tracks; i++) { - av_freep(&tracks->tracks[i]->codec_private); - av_freep(&tracks->tracks[i]->offsets); - av_freep(&tracks->tracks[i]); - } - av_freep(&tracks->tracks); - tracks->nb_tracks = 0; -} - -int main(int argc, char **argv) -{ - const char *basename = NULL; - int split = 0, i; - struct Tracks tracks = { 0, .video_track = -1, .audio_track = -1 }; - - av_register_all(); - - for (i = 1; i < argc; i++) { - if (!strcmp(argv[i], "-n")) { - basename = argv[i + 1]; - i++; - } else if (!strcmp(argv[i], "-split")) { - split = 1; - } else if (argv[i][0] == '-') { - return usage(argv[0], 1); - } else { - if (handle_file(&tracks, argv[i], split)) - return 1; - } - } - if (!tracks.nb_tracks || (!basename && !split)) - return usage(argv[0], 1); - - if (!split) - output_server_manifest(&tracks, basename); - output_client_manifest(&tracks, basename, split); - - clean_tracks(&tracks); - - return 0; -} |