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matroskadec: read TrackTimecodeScale and set timebase accordingly 

patch by Anton Khirnov   wyskas _at_ gmail _dot_ com

Originally committed as revision 13601 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Anton Khirnov 2008-06-01 13:54:11 +00:00 committed by Aurelien Jacobs
parent cdae8eec10
commit 7ff9708585
2 changed files with 11 additions and 1 deletions
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1
libavformat/matroska.h
View File

@ -94,6 +94,7 @@
#define MATROSKA_ID_TRACKDEFAULTDURATION 0x23E383
#define MATROSKA_ID_TRACKCONTENTENCODINGS 0x6D80
#define MATROSKA_ID_TRACKCONTENTENCODING 0x6240
#define MATROSKA_ID_TRACKTIMECODESCALE 0x23314F
/* IDs in the trackvideo master */
#define MATROSKA_ID_VIDEOFRAMERATE 0x2383E3

11
libavformat/matroskadec.c
View File

@ -60,6 +60,7 @@ typedef struct Track {
unsigned char *codec_priv;
int codec_priv_size;
double time_scale;
uint64_t default_duration;
MatroskaTrackFlags flags;
@ -1589,6 +1590,14 @@ matroska_add_stream (MatroskaDemuxContext *matroska)
break;
}
case MATROSKA_ID_TRACKTIMECODESCALE: {
double num;
if ((res = ebml_read_float(matroska, &id, &num)) < 0)
break;
track->time_scale = num;
break;
}
default:
av_log(matroska->ctx, AV_LOG_INFO,
"Unknown track header entry 0x%x - ignoring\n", id);
@ -2615,7 +2624,7 @@ matroska_read_header (AVFormatContext *s,
st = av_new_stream(s, track->stream_index);
if (st == NULL)
return AVERROR(ENOMEM);
av_set_pts_info(st, 64, matroska->time_scale, 1000*1000*1000); /* 64 bit pts in ns */
av_set_pts_info(st, 64, matroska->time_scale*track->time_scale, 1000*1000*1000); /* 64 bit pts in ns */
st->codec->codec_id = codec_id;
st->start_time = 0;