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authorRoman Shaposhnik <roman@shaposhnik.org>2004-09-19 02:05:22 +0000
committerRoman Shaposhnik <roman@shaposhnik.org>2004-09-19 02:05:22 +0000
commitc4e554701ec27b31b1b6396130b8bb2aaa0d4ad0 (patch)
tree5a3b66c10bed74ea368d9fe219e2965838531688 /libavformat
parent0bf4e2b8a3d073ce7b86d177c8f3e6e8284a6c1f (diff)
downloadffmpeg-c4e554701ec27b31b1b6396130b8bb2aaa0d4ad0.tar.gz
* misc. fixes and hacks to improve timing detection in raw DV
Originally committed as revision 3478 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavformat')
-rw-r--r--libavformat/dv.c15
1 files changed, 12 insertions, 3 deletions
diff --git a/libavformat/dv.c b/libavformat/dv.c
index 31b3522056..f7e4d6f08e 100644
--- a/libavformat/dv.c
+++ b/libavformat/dv.c
@@ -741,11 +741,11 @@ DVDemuxContext* dv_init_demux(AVFormatContext *s)
c->vst->codec.codec_type = CODEC_TYPE_VIDEO;
c->vst->codec.codec_id = CODEC_ID_DVVIDEO;
c->vst->codec.bit_rate = 25000000;
+ c->vst->start_time = 0;
c->ast[0]->codec.codec_type = CODEC_TYPE_AUDIO;
c->ast[0]->codec.codec_id = CODEC_ID_PCM_S16LE;
-
- s->ctx_flags |= AVFMTCTX_NOHEADER;
+ c->ast[0]->start_time = 0;
return c;
@@ -849,9 +849,18 @@ static int dv_read_header(AVFormatContext *s,
AVFormatParameters *ap)
{
RawDVContext *c = s->priv_data;
+ const DVprofile* sys;
c->dv_demux = dv_init_demux(s);
+ if (!c->dv_demux)
+ return -1;
- return c->dv_demux ? 0 : -1;
+ if (get_buffer(&s->pb, c->buf, 4) <= 0 || url_fseek(&s->pb, -4, SEEK_CUR) < 0)
+ return AVERROR_IO;
+
+ sys = dv_frame_profile(c->buf);
+ s->bit_rate = av_rescale(sys->frame_size * 8, sys->frame_rate, sys->frame_rate_base);
+
+ return 0;
}