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Move writing codec private element to its own function

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Originally committed as revision 10378 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
David Conrad 2007-09-05 00:25:49 +00:00
parent 211783a50a
commit 5c559894e1
1 changed files with 43 additions and 29 deletions
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72
libavformat/matroskaenc.c
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@ -470,6 +470,46 @@ static void get_aac_sample_rates(AVCodecContext *codec, int *sample_rate, int *o
}
}
static int mkv_write_codecprivate(ByteIOContext *pb, AVCodecContext *codec, int native_id)
{
int ret;
if (native_id) {
if (codec->codec_id == CODEC_ID_VORBIS || codec->codec_id == CODEC_ID_THEORA) {
ret = put_xiph_codecpriv(pb, codec);
if (ret < 0) return ret;
} else if (codec->codec_id == CODEC_ID_FLAC) {
ret = put_flac_codecpriv(pb, codec);
if (ret < 0) return ret;
} else if (codec->extradata_size) {
put_ebml_binary(pb, MATROSKA_ID_CODECPRIVATE, codec->extradata, codec->extradata_size);
}
} else if (codec->codec_type == CODEC_TYPE_VIDEO) {
ebml_master bmp_header;
if (!codec->codec_tag)
codec->codec_tag = codec_get_tag(codec_bmp_tags, codec->codec_id);
bmp_header = start_ebml_master(pb, MATROSKA_ID_CODECPRIVATE, 0);
put_bmp_header(pb, codec, codec_bmp_tags, 0);
end_ebml_master(pb, bmp_header);
} else if (codec->codec_type == CODEC_TYPE_AUDIO) {
ebml_master wav_header;
codec->codec_tag = codec_get_tag(codec_wav_tags, codec->codec_id);
if (!codec->codec_tag) {
av_log(codec, AV_LOG_ERROR, "no wav codec id found");
return -1;
}
wav_header = start_ebml_master(pb, MATROSKA_ID_CODECPRIVATE, 0);
put_wav_header(pb, codec);
end_ebml_master(pb, wav_header);
}
return 0;
}
static int mkv_write_tracks(AVFormatContext *s)
{
MatroskaMuxContext *mkv = s->priv_data;
@ -516,32 +556,13 @@ static int mkv_write_tracks(AVFormatContext *s)
}
}
if (native_id) {
if (codec->codec_id == CODEC_ID_VORBIS || codec->codec_id == CODEC_ID_THEORA) {
ret = put_xiph_codecpriv(pb, codec);
if (ret < 0) return ret;
} else if (codec->codec_id == CODEC_ID_FLAC) {
ret = put_flac_codecpriv(pb, codec);
if (ret < 0) return ret;
} else if (codec->extradata_size) {
put_ebml_binary(pb, MATROSKA_ID_CODECPRIVATE, codec->extradata, codec->extradata_size);
}
}
switch (codec->codec_type) {
case CODEC_TYPE_VIDEO:
put_ebml_uint(pb, MATROSKA_ID_TRACKTYPE, MATROSKA_TRACK_TYPE_VIDEO);
if (!native_id) {
ebml_master bmp_header;
// if there is no mkv-specific codec id, use VFW mode
if (!codec->codec_tag)
codec->codec_tag = codec_get_tag(codec_bmp_tags, codec->codec_id);
put_ebml_string(pb, MATROSKA_ID_CODECID, MATROSKA_CODEC_ID_VIDEO_VFW_FOURCC);
bmp_header = start_ebml_master(pb, MATROSKA_ID_CODECPRIVATE, 0);
put_bmp_header(pb, codec, codec_bmp_tags, 0);
end_ebml_master(pb, bmp_header);
}
subinfo = start_ebml_master(pb, MATROSKA_ID_TRACKVIDEO, 0);
// XXX: interlace flag?
@ -560,18 +581,8 @@ static int mkv_write_tracks(AVFormatContext *s)
put_ebml_uint(pb, MATROSKA_ID_TRACKTYPE, MATROSKA_TRACK_TYPE_AUDIO);
if (!native_id) {
ebml_master wav_header;
// no mkv-specific ID, use ACM mode
codec->codec_tag = codec_get_tag(codec_wav_tags, codec->codec_id);
if (!codec->codec_tag) {
av_log(s, AV_LOG_ERROR, "no codec id found for stream %d", i);
return -1;
}
put_ebml_string(pb, MATROSKA_ID_CODECID, MATROSKA_CODEC_ID_AUDIO_ACM);
wav_header = start_ebml_master(pb, MATROSKA_ID_CODECPRIVATE, 0);
put_wav_header(pb, codec);
end_ebml_master(pb, wav_header);
}
subinfo = start_ebml_master(pb, MATROSKA_ID_TRACKAUDIO, 0);
put_ebml_uint (pb, MATROSKA_ID_AUDIOCHANNELS , codec->channels);
@ -590,6 +601,9 @@ static int mkv_write_tracks(AVFormatContext *s)
av_log(s, AV_LOG_ERROR, "Only audio, video, and subtitles are supported for Matroska.");
break;
}
ret = mkv_write_codecprivate(pb, codec, native_id);
if (ret < 0) return ret;
end_ebml_master(pb, track);
// ms precision is the de-facto standard timescale for mkv files