[FFmpeg-trac] #3155(undetermined:new): g264 only decodes keyframes

FFmpeg trac at avcodec.org
Wed Nov 20 12:13:18 CET 2013


#3155: g264 only decodes keyframes
-------------------------------------+-------------------------------------
               Reporter:  compn      |                  Owner:
                   Type:             |                 Status:  new
  enhancement                        |              Component:
               Priority:  wish       |  undetermined
                Version:  git-       |               Keywords:
  master                             |               Blocking:
             Blocked By:             |  Analyzed by developer:  0
Reproduced by developer:  1          |
-------------------------------------+-------------------------------------
 http://samples.ffmpeg.org/V-codecs/g264.avi

 ffmpeg -i g264.avi out.avi

 ffmpeg version N-58288-g80e5859 Copyright (c) 2000-2013 the FFmpeg
 developers
   built on Nov 19 2013 18:01:40 with gcc 4.8.2 (GCC)
   configuration: --enable-gpl --enable-version3 --disable-w32threads
 --enable-avisynth --enable-bzli
 b --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv
 --enable-libass --enable-libblu
 ray --enable-libcaca --enable-libfreetype --enable-libgsm --enable-libilbc
 --enable-libmodplug --ena
 ble-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb
 --enable-libopenjpeg --enable-l
 ibopus --enable-librtmp --enable-libschroedinger --enable-libsoxr
 --enable-libspeex --enable-libtheo
 ra --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-
 libvo-amrwbenc --enable-li
 bvorbis --enable-libvpx --enable-libwavpack --enable-libx264 --enable-
 libxavs --enable-libxvid --ena
 ble-zlib
   libavutil      52. 53.100 / 52. 53.100
   libavcodec     55. 43.101 / 55. 43.101
   libavformat    55. 21.100 / 55. 21.100
   libavdevice    55.  5.100 / 55.  5.100
   libavfilter     3. 91.100 /  3. 91.100
   libswscale      2.  5.101 /  2.  5.101
   libswresample   0. 17.104 /  0. 17.104
   libpostproc    52.  3.100 / 52.  3.100
 [mpeg4 @ 0290a4e0] hmm, seems the headers are not complete, trying to
 guess time_increment_bits
 [mpeg4 @ 0290a4e0] my guess is 5 bits ;)
 [avi @ 0290e020] probed stream 1 failed
 [avi @ 0290e020] Could not find codec parameters for stream 1 (Subtitle:
 none): unknown codec
 Consider increasing the value for the 'analyzeduration' and 'probesize'
 options
 Input #0, avi, from 'g264.avi':
   Duration: 00:03:39.96, start: 0.000000, bitrate: 122 kb/s
     Stream #0:0: Video: mpeg4 (G264 / 0x34363247), yuv420p, 320x240, 25
 fps, 25 tbr, 25 tbn, 25 tbc
     Stream #0:1: Subtitle: none
 File 'out.avi' already exists. Overwrite ? [y/N] y
 Output #0, avi, to 'out.avi':
   Metadata:
     ISFT            : Lavf55.21.100
     Stream #0:0: Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 320x240,
 q=2-31, 200 kb/s, 25 tbn, 25 tb
 c
 Stream mapping:
   Stream #0:0 -> #0:0 (mpeg4 -> mpeg4)
 Press [q] to stop, [?] for help
 [mpeg4 @ 0290a4e0] hmm, seems the headers are not complete, trying to
 guess time_increment_bits
 [mpeg4 @ 0290a4e0] my guess is 5 bits ;)
 [mpeg4 @ 0290a4e0] looks like this file was encoded with
 (divx4/(old)xvid/opendivx) -> forcing low_d
 elay flag
 [mpeg4 @ 0290a4e0] header damaged
 Error while decoding stream #0:0: Error number -1 occurred
 [mpeg4 @ 0290a4e0] header damaged
 Error while decoding stream #0:0: Error number -1 occurred
 [mpeg4 @ 0290a4e0] header damaged
 Error while decoding stream #0:0: Error number -1 occurred
 [mpeg4 @ 0290a4e0] header damaged
 Error while decoding stream #0:0: Error number -1 occurred

 million of these messages.

 binary mplayer codec works fine.

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/3155>
FFmpeg <http://ffmpeg.org>
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