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matroskaenc: Write codec time base as default duration for video tracks.

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This isn't exactly semantically equivalent, but the field has already been
long abused to mean this, and writing it helps in determining a decent cfr
time base when transcoding from a mkv where the video codec stores none (VP8).

Originally committed as revision 23284 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
David Conrad 2010-05-24 08:58:19 +00:00
parent 31fdd64194
commit 7bb83d8ddf
3 changed files with 25 additions and 24 deletions
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1
libavformat/matroskaenc.c
View File

@ -566,6 +566,7 @@ static int mkv_write_tracks(AVFormatContext *s)
switch (codec->codec_type) {
case AVMEDIA_TYPE_VIDEO:
put_ebml_uint(pb, MATROSKA_ID_TRACKTYPE, MATROSKA_TRACK_TYPE_VIDEO);
put_ebml_uint(pb, MATROSKA_ID_TRACKDEFAULTDURATION, av_q2d(codec->time_base)*1E9);
if (!native_id &&
ff_codec_get_tag(codec_movvideo_tags, codec->codec_id) &&

4
tests/ref/lavf/mkv
View File

@ -1,3 +1,3 @@
a0ce20d849aea1c6e138dd1101c8f162 *./tests/data/lavf/lavf.mkv
320463 ./tests/data/lavf/lavf.mkv
cf230e089e737ed9449fbfb3cb87da92 *./tests/data/lavf/lavf.mkv
320471 ./tests/data/lavf/lavf.mkv
./tests/data/lavf/lavf.mkv CRC=0x2a83e6b0

44
tests/ref/seek/lavf.mkv.ref
View File

@ -1,53 +1,53 @@
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 505 size: 27837
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 513 size: 27837
ret: 0 st:-1 flags:0 ts:-1.000000
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 505 size: 27837
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 513 size: 27837
ret: 0 st:-1 flags:1 ts: 1.894167
ret: 0 st: 0 flags:1 dts: 0.960000 pts: 0.960000 pos: 291894 size: 27834
ret: 0 st: 0 flags:1 dts: 0.960000 pts: 0.960000 pos: 291902 size: 27834
ret: 0 st: 0 flags:0 ts: 0.788000
ret: 0 st: 0 flags:1 dts: 0.960000 pts: 0.960000 pos: 291894 size: 27834
ret: 0 st: 0 flags:1 dts: 0.960000 pts: 0.960000 pos: 291902 size: 27834
ret: 0 st: 0 flags:1 ts:-0.317000
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 505 size: 27837
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 513 size: 27837
ret: 0 st: 1 flags:0 ts: 2.577000
ret:-EOF
ret: 0 st: 1 flags:1 ts: 1.471000
ret: 0 st: 1 flags:1 dts: 1.019000 pts: 1.019000 pos: 320167 size: 209
ret: 0 st: 1 flags:1 dts: 1.019000 pts: 1.019000 pos: 320175 size: 209
ret: 0 st:-1 flags:0 ts: 0.365002
ret: 0 st: 0 flags:1 dts: 0.480000 pts: 0.480000 pos: 146679 size: 27925
ret: 0 st: 0 flags:1 dts: 0.480000 pts: 0.480000 pos: 146687 size: 27925
ret: 0 st:-1 flags:1 ts:-0.740831
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 505 size: 27837
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 513 size: 27837
ret: 0 st: 0 flags:0 ts: 2.153000
ret:-EOF
ret: 0 st: 0 flags:1 ts: 1.048000
ret: 0 st: 0 flags:1 dts: 0.960000 pts: 0.960000 pos: 291894 size: 27834
ret: 0 st: 0 flags:1 dts: 0.960000 pts: 0.960000 pos: 291902 size: 27834
ret: 0 st: 1 flags:0 ts:-0.058000
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 505 size: 27837
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 513 size: 27837
ret: 0 st: 1 flags:1 ts: 2.836000
ret: 0 st: 1 flags:1 dts: 1.019000 pts: 1.019000 pos: 320167 size: 209
ret: 0 st: 1 flags:1 dts: 1.019000 pts: 1.019000 pos: 320175 size: 209
ret: 0 st:-1 flags:0 ts: 1.730004
ret:-EOF
ret: 0 st:-1 flags:1 ts: 0.624171
ret: 0 st: 0 flags:1 dts: 0.480000 pts: 0.480000 pos: 146679 size: 27925
ret: 0 st: 0 flags:1 dts: 0.480000 pts: 0.480000 pos: 146687 size: 27925
ret: 0 st: 0 flags:0 ts:-0.482000
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 505 size: 27837
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 513 size: 27837
ret: 0 st: 0 flags:1 ts: 2.413000
ret: 0 st: 0 flags:1 dts: 0.960000 pts: 0.960000 pos: 291894 size: 27834
ret: 0 st: 0 flags:1 dts: 0.960000 pts: 0.960000 pos: 291902 size: 27834
ret: 0 st: 1 flags:0 ts: 1.307000
ret:-EOF
ret: 0 st: 1 flags:1 ts: 0.201000
ret: 0 st: 1 flags:1 dts: 0.183000 pts: 0.183000 pos: 72075 size: 209
ret: 0 st: 1 flags:1 dts: 0.183000 pts: 0.183000 pos: 72083 size: 209
ret: 0 st:-1 flags:0 ts:-0.904994
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 505 size: 27837
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 513 size: 27837
ret: 0 st:-1 flags:1 ts: 1.989173
ret: 0 st: 0 flags:1 dts: 0.960000 pts: 0.960000 pos: 291894 size: 27834
ret: 0 st: 0 flags:1 dts: 0.960000 pts: 0.960000 pos: 291902 size: 27834
ret: 0 st: 0 flags:0 ts: 0.883000
ret: 0 st: 0 flags:1 dts: 0.960000 pts: 0.960000 pos: 291894 size: 27834
ret: 0 st: 0 flags:1 dts: 0.960000 pts: 0.960000 pos: 291902 size: 27834
ret: 0 st: 0 flags:1 ts:-0.222000
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 505 size: 27837
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 513 size: 27837
ret: 0 st: 1 flags:0 ts: 2.672000
ret:-EOF
ret: 0 st: 1 flags:1 ts: 1.566000
ret: 0 st: 1 flags:1 dts: 1.019000 pts: 1.019000 pos: 320167 size: 209
ret: 0 st: 1 flags:1 dts: 1.019000 pts: 1.019000 pos: 320175 size: 209
ret: 0 st:-1 flags:0 ts: 0.460008
ret: 0 st: 0 flags:1 dts: 0.480000 pts: 0.480000 pos: 146679 size: 27925
ret: 0 st: 0 flags:1 dts: 0.480000 pts: 0.480000 pos: 146687 size: 27925
ret: 0 st:-1 flags:1 ts:-0.645825
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 505 size: 27837
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 513 size: 27837