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mov: Refactor codec id selection in mov_codec_id

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This commit is contained in:
Luca Barbato 2013-08-22 15:00:46 +02:00
parent ff9d57e7df
commit bf98562505
1 changed files with 32 additions and 20 deletions
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52
libavformat/mov.c
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@ -1069,6 +1069,37 @@ enum AVCodecID ff_mov_get_lpcm_codec_id(int bps, int flags)
return ff_get_pcm_codec_id(bps, flags & 1, flags & 2, flags & 4 ? -1 : 0);
}
static int mov_codec_id(AVStream *st, uint32_t format)
{
int id = ff_codec_get_id(ff_codec_movaudio_tags, format);
if (id <= 0 &&
((format & 0xFFFF) == 'm' + ('s' << 8) ||
(format & 0xFFFF) == 'T' + ('S' << 8)))
id = ff_codec_get_id(ff_codec_wav_tags, av_bswap32(format) & 0xFFFF);
if (st->codec->codec_type != AVMEDIA_TYPE_VIDEO && id > 0) {
st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
} else if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO &&
/* skip old asf mpeg4 tag */
format && format != MKTAG('m','p','4','s')) {
id = ff_codec_get_id(ff_codec_movvideo_tags, format);
if (id <= 0)
id = ff_codec_get_id(ff_codec_bmp_tags, format);
if (id > 0)
st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
else if (st->codec->codec_type == AVMEDIA_TYPE_DATA) {
id = ff_codec_get_id(ff_codec_movsubtitle_tags, format);
if (id > 0)
st->codec->codec_type = AVMEDIA_TYPE_SUBTITLE;
}
}
st->codec->codec_tag = format;
return id;
}
int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
{
AVStream *st;
@ -1119,26 +1150,7 @@ int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
sc->pseudo_stream_id = st->codec->codec_tag ? -1 : pseudo_stream_id;
sc->dref_id= dref_id;
st->codec->codec_tag = format;
id = ff_codec_get_id(ff_codec_movaudio_tags, format);
if (id<=0 && ((format&0xFFFF) == 'm'+('s'<<8) || (format&0xFFFF) == 'T'+('S'<<8)))
id = ff_codec_get_id(ff_codec_wav_tags, av_bswap32(format)&0xFFFF);
if (st->codec->codec_type != AVMEDIA_TYPE_VIDEO && id > 0) {
st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
} else if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO && /* do not overwrite codec type */
format && format != MKTAG('m','p','4','s')) { /* skip old asf mpeg4 tag */
id = ff_codec_get_id(ff_codec_movvideo_tags, format);
if (id <= 0)
id = ff_codec_get_id(ff_codec_bmp_tags, format);
if (id > 0)
st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
else if (st->codec->codec_type == AVMEDIA_TYPE_DATA){
id = ff_codec_get_id(ff_codec_movsubtitle_tags, format);
if (id > 0)
st->codec->codec_type = AVMEDIA_TYPE_SUBTITLE;
}
}
id = mov_codec_id(st, format);
av_dlog(c->fc, "size=%d 4CC= %c%c%c%c codec_type=%d\n", size,
(format >> 0) & 0xff, (format >> 8) & 0xff, (format >> 16) & 0xff,