New submission from matthiash <[email protected]>:
this clip comes from a jvc-cam. it contains a video stream (yuv422p) that is not
processable with ffmpeg (r25895) but no problems appear when using libmpeg2
(tried with "mplayer -vc mpeg12").
trying to use it produces a bunch of errors. here is ffmpeg's output:
$ ./ffmpeg -v 9 -loglevel 99 -i
../../mpeg2video_yuv422p_unable_to_use_with_libavc_but_with_libmpeg2.mpg
FFmpeg version SVN-r25895, Copyright (c) 2000-2010 the FFmpeg developers
built on Dec 6 2010 04:17:12 with gcc 4.2.1 (Apple Inc. build 5659)
configuration: --enable-gpl --enable-version3 --enable-libgsm
--enable-pthreads --enable-libvorbis --enable-libtheora --enable-libspeex
--enable-libmp3lame --enable-libopenjpeg --enable-libschroedinger
--enable-libopencore_amrwb --enable-libopencore_amrnb --enable-libvpx
--disable-decoder=libvpx --arch=x86 --enable-runtime-cpudetect --enable-libx264
--enable-librtmp --extra-libs='-lrtmp -lssl -lcrypto' --target-os=darwin
--cross-prefix=x86_64-apple-darwin10- --cc='ccache x86_64-apple-darwin10-gcc'
libavutil 50.34. 0 / 50.34. 0
libavcore 0.15. 0 / 0.15. 0
libavcodec 52.98. 0 / 52.98. 0
libavformat 52.88. 0 / 52.88. 0
libavdevice 52. 2. 2 / 52. 2. 2
libavfilter 1.68. 0 / 1.68. 0
libswscale 0.12. 0 / 0.12. 0
[NULL @ 0x10180b000] Probed with size=8192 and score=52
[mpeg @ 0x10180b000] probing stream 0
Last message repeated 65 times
[mpeg @ 0x10180b000] Probe with size=132741, packets=66 detected mpegvideo with
score=51
[mpeg @ 0x10180b000] probed stream 0
[mpeg2video @ 0x101815a00] invalid frame_pred_frame_dct
[mpeg2video @ 0x101815a00] skipped MB in I frame at 7 0
[mpeg2video @ 0x101815a00] mb incr damaged
[mpeg2video @ 0x101815a00] ac-tex damaged at 3 2
[mpeg2video @ 0x101815a00] skipped MB in I frame at 1 3
[mpeg2video @ 0x101815a00] skipped MB in I frame at 3 4
[mpeg2video @ 0x101815a00] skipped MB in I frame at 1 5
[mpeg2video @ 0x101815a00] ac-tex damaged at 1 6
[mpeg2video @ 0x101815a00] ac-tex damaged at 1 7
[mpeg2video @ 0x101815a00] ac-tex damaged at 1 8
[mpeg2video @ 0x101815a00] ac-tex damaged at 4 9
[mpeg2video @ 0x101815a00] skipped MB in I frame at 1 10
[mpeg2video @ 0x101815a00] mb incr damaged
Last message repeated 1 times
[mpeg2video @ 0x101815a00] ac-tex damaged at 1 13
[mpeg2video @ 0x101815a00] skipped MB in I frame at 2 14
[mpeg2video @ 0x101815a00] ac-tex damaged at 0 15
[mpeg2video @ 0x101815a00] skipped MB in I frame at 3 16
[mpeg2video @ 0x101815a00] skipped MB in I frame at 3 17
[mpeg2video @ 0x101815a00] skipped MB in I frame at 2 18
[mpeg2video @ 0x101815a00] skipped MB in I frame at 2 19
[mpeg2video @ 0x101815a00] mb incr damaged
[mpeg2video @ 0x101815a00] skipped MB in I frame at 5 21
[mpeg2video @ 0x101815a00] ac-tex damaged at 0 22
[mpeg2video @ 0x101815a00] ac-tex damaged at 3 23
[mpeg2video @ 0x101815a00] skipped MB in I frame at 1 24
[mpeg2video @ 0x101815a00] ac-tex damaged at 12 25
[mpeg2video @ 0x101815a00] skipped MB in I frame at 2 26
[mpeg2video @ 0x101815a00] ac-tex damaged at 0 27
[mpeg2video @ 0x101815a00] ac-tex damaged at 4 28
[mpeg2video @ 0x101815a00] ac-tex damaged at 0 29
[mpeg2video @ 0x101815a00] skipped MB in I frame at 4 30
[mpeg2video @ 0x101815a00] skipped MB in I frame at 3 31
[mpeg2video @ 0x101815a00] skipped MB in I frame at 1 32
[mpeg2video @ 0x101815a00] ac-tex damaged at 2 33
[mpeg2video @ 0x101815a00] mb incr damaged
[mpeg2video @ 0x101815a00] ac-tex damaged at 3 35
[mpeg2video @ 0x101815a00] ac-tex damaged at 1 36
[mpeg2video @ 0x101815a00] ac-tex damaged at 1 37
[mpeg2video @ 0x101815a00] ac-tex damaged at 1 38
[mpeg2video @ 0x101815a00] mb incr damaged
[mpeg2video @ 0x101815a00] skipped MB in I frame at 4 40
[mpeg2video @ 0x101815a00] mb incr damaged
[mpeg2video @ 0x101815a00] skipped MB in I frame at 4 42
[mpeg2video @ 0x101815a00] ac-tex damaged at 1 43
[mpeg2video @ 0x101815a00] ac-tex damaged at 7 44
[mpeg2video @ 0x101815a00] Warning MVs not available
[mpeg2video @ 0x101815a00] concealing 3600 DC, 3600 AC, 3600 MV errors
[mpeg @ 0x10180b000] Probe buffer size limit 5000000 reached
Input #0, mpeg, from
'../../mpeg2video_yuv422p_unable_to_use_with_libavc_but_with_libmpeg2.mpg':
Duration: 00:00:01.30, start: 0.040000, bitrate: 34053 kb/s
Stream #0.0[0x1e0], 62, 1/90000: Video: mpeg2video, yuv422p, 1280x720 [PAR
1:1 DAR 16:9], 1/100, 100000 kb/s, 50 fps, 50 tbr, 90k tbn, 100 tbc
Stream #0.1[0x1c0], 52, 1/90000: Audio: mp2, 48000 Hz, 2 channels, s16, 384
kb/s
Stream #0.2[0x1c1], 52, 1/90000: Audio: mp2, 48000 Hz, 2 channels, s16, 384
kb/s
At least one output file must be specified
the clip is very short but i can provide further material on request.
File 'mpeg2video_yuv422p_unable_to_use_with_libavc_but_with_libmpeg2.mpg' not
attached - you can download it from https://roundup.ffmpeg.org/file1208.
----------
files: mpeg2video_yuv422p_unable_to_use_with_libavc_but_with_libmpeg2.mpg
messages: 12843
priority: normal
status: new
substatus: new
title: mpeg2 yuv422p unprocessable with libavcodec but no problem with libmpeg2
type: bug
________________________________________________
FFmpeg issue tracker <[email protected]>
<https://roundup.ffmpeg.org/issue2405>
________________________________________________
