[FFmpeg-trac] #2917(avformat:new): Wrong framerate for mpeg2video in lxf
FFmpeg
trac at avcodec.org
Fri Aug 30 13:11:26 CEST 2013
#2917: Wrong framerate for mpeg2video in lxf
-------------------------------------+-------------------------------------
Reporter: cehoyos | Owner:
Type: defect | Status: new
Priority: important | Component: avformat
Version: git- | Keywords: lxf
master | mpeg2video regression
Blocked By: | Blocking:
Reproduced by developer: 0 | Analyzed by developer: 0
-------------------------------------+-------------------------------------
http://thread.gmane.org/gmane.comp.video.ffmpeg.user/47567
A user uploaded a lxf sample that shows an incorrect framerate of 14.99
instead of 29.97 since 45bd0d1 (ticket #1065) unless --disable-
parser=mpegvideo is used.
{{{
$ ffmpeg -i Video_LXF.lxf -f null -
ffmpeg version N-55905-g62a6052 Copyright (c) 2000-2013 the FFmpeg
developers
built on Aug 30 2013 13:10:20 with gcc 4.7 (SUSE Linux)
configuration: --enable-gpl --disable-indev=jack
libavutil 52. 42.100 / 52. 42.100
libavcodec 55. 29.100 / 55. 29.100
libavformat 55. 15.100 / 55. 15.100
libavdevice 55. 3.100 / 55. 3.100
libavfilter 3. 82.102 / 3. 82.102
libswscale 2. 5.100 / 2. 5.100
libswresample 0. 17.103 / 0. 17.103
libpostproc 52. 3.100 / 52. 3.100
Guessed Channel Layout for Input Stream #0.1 : 7.1
Input #0, lxf, from 'Video_LXF.lxf':
Duration: 00:00:16.88, start: 0.000000, bitrate: 12229 kb/s
Stream #0:0: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002),
yuv420p, 720x480 [SAR 8:9 DAR 4:3], 6000 kb/s, 14.99 fps, 29.97 tbr, 29.97
tbn, 59.94 tbc
Stream #0:1: Audio: pcm_s16le_planar, 48000 Hz, 7.1, s16p, 6144 kb/s
Output #0, null, to 'pipe:':
Metadata:
encoder : Lavf55.15.100
Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 720x480
[SAR 8:9 DAR 4:3], q=2-31, 200 kb/s, 90k tbn, 29.97 tbc
Stream #0:1: Audio: pcm_s16le, 48000 Hz, 7.1, s16, 6144 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (mpeg2video -> rawvideo)
Stream #0:1 -> #0:1 (pcm_s16le_planar -> pcm_s16le)
Press [q] to stop, [?] for help
[mpeg2video @ 0x2430280] allocating dummy last picture for B frame
[null @ 0x24359c0] Encoder did not produce proper pts, making some up.
[mpeg2video @ 0x2430280] allocating dummy last picture for B frame
frame= 507 fps=0.0 q=0.0 Lsize=N/A time=00:00:17.01 bitrate=N/A dup=2
drop=1
video:48kB audio:12763kB subtitle:0 global headers:0kB muxing overhead
-100.000168%
}}}
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2917>
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