[FFmpeg-trac] #254(undetermined:new): mpeg2video encoded in interlaced/field mode decodes incorrectly (demuxer)

FFmpeg trac at avcodec.org
Tue May 31 01:19:27 CEST 2011


#254: mpeg2video encoded in interlaced/field mode decodes incorrectly (demuxer)
--------------------------+--------------------------
 Reporter:  ami_stuff     |        Type:  defect
   Status:  new           |    Priority:  normal
Component:  undetermined  |     Version:  unspecified
 Keywords:                |  Blocked By:
 Blocking:                |  Reproduced:  0
 Analyzed:  0             |
--------------------------+--------------------------
 the file (from ticket #186) decodes incorrectly with ffmpeg

 (plays fine with xine and mplayer -demuxer mpegts)

 {{{
 C:\>ffmpeg -i t.mpg
 ffmpeg version git-N-30344-g5501afa, Copyright (c) 2000-2011 the FFmpeg
 develope
 rs
   built on May 27 2011 22:37:57 with gcc 4.5.3
   configuration: --enable-gpl --enable-version3 --enable-memalign-hack
 --enable-
 runtime-cpudetect --enable-avisynth --enable-bzlib --enable-frei0r
 --enable-libo
 pencore-amrnb --enable-libopencore-amrwb --enable-libfreetype --enable-
 libgsm --
 enable-libmp3lame --enable-libopenjpeg --enable-librtmp --enable-
 libschroedinger
  --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libvpx
 --enabl
 e-libx264 --enable-libxavs --enable-libxvid --enable-zlib --pkg-config
 =pkg-confi
 g
   libavutil    51.  2. 2 / 51.  2. 2
   libavcodec   53.  6. 0 / 53.  6. 0
   libavformat  53.  2. 0 / 53.  2. 0
   libavdevice  53.  0. 0 / 53.  0. 0
   libavfilter   2. 11. 0 /  2. 11. 0
   libswscale    0. 14. 0 /  0. 14. 0
   libpostproc  51.  2. 0 / 51.  2. 0
 [mp3 @ 02350BA0] Header missing
 [mpeg2video @ 023507A0] allocate dummy last picture for field based first
 keyfra
 me
 [mpeg2video @ 023507A0] invalid cbp at 21 0
 [mpeg2video @ 023507A0] invalid cbp at 17 10
 [mpeg2video @ 023507A0] ac-tex damaged at 12 6
 [mpeg2video @ 023507A0] mb incr damaged
     Last message repeated 1 times
 [mpeg2video @ 023507A0] invalid cbp at 18 12
 [mpeg2video @ 023507A0] ac-tex damaged at 13 12
 [mpeg2video @ 023507A0] ac-tex damaged at 12 14
 [mpeg2video @ 023507A0] invalid cbp at 12 16
 [mpegts @ 023502A0] max_analyze_duration 5000000 reached at 5015467

 Seems stream 0 codec frame rate differs from container frame rate: 50.00
 (50/1)
 -> 50.00 (50/1)
 Input #0, mpegts, from 't.mpg':
   Duration: 00:00:14.01, start: 0.086122, bitrate: 770 kb/s
   Program 1
     Stream #0.0[0x12d]: Video: mpeg2video (Main), yuv420p, 352x288 [PAR
 12:11 DA
 R 4:3], 500 kb/s, 25 fps, 50 tbr, 90k tbn, 50 tbc
     Stream #0.1[0x12e]: Audio: mp3, 44100 Hz, mono, s16, 128 kb/s
 At least one output file must be specified
 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/254>
FFmpeg <http://ffmpeg.org>
FFmpeg issue tracker


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