[FFmpeg-trac] #2589(avcodec:new): ffv1 decoder membomn

[FFmpeg]

#2589: ffv1 decoder membomn
-------------------------------------+-------------------------------------
               Reporter:  ubitux     |                  Owner:
                   Type:  defect     |                 Status:  new
               Priority:  important  |              Component:  avcodec
                Version:  git-       |               Keywords:
  master                             |  ffv1,regression
             Blocked By:             |               Blocking:
Reproduced by developer:  0          |  Analyzed by developer:  0
-------------------------------------+-------------------------------------
 Generate a FFv1 sample:

 {{{
 % ./ffmpeg -f lavfi -i testsrc=d=300 -c:v ffv1 -y test.nut
 ffmpeg version N-53267-g1de28cb Copyright (c) 2000-2013 the FFmpeg
 developers
   built on May 19 2013 12:29:47 with gcc 4.8.0 (GCC) 20130502 (prerelease)
   configuration: --enable-gpl --enable-version3 --enable-fontconfig
 --enable-libfreetype --enable-libmp3lame --enable-libvorbis --enable-
 libxvid --enable-libx264 --enable-libvpx --enable-libtheora --enable-
 x11grab --enable-libopenjpeg --enable-libass --enable-libmodplug --enable-
 libv4l2 --cc=colorgcc --samples=/home/ubitux/fate-samples
 --prefix=/tmp/ffinstall --disable-runtime-cpudetect --enable-libcelt
 --enable-libopencv --enable-frei0r --enable-libcaca --enable-libiec61883
 --enable-libopencore-amrwb --enable-libopencore-amrnb --enable-libopus
 --enable-libpulse --enable-libspeex --enable-libquvi --assert-level=2
 --enable-libzmq
   libavutil      52. 33.100 / 52. 33.100
   libavcodec     55. 10.101 / 55. 10.101
   libavformat    55.  7.100 / 55.  7.100
   libavdevice    55.  0.100 / 55.  0.100
   libavfilter     3. 68.101 /  3. 68.101
   libswscale      2.  3.100 /  2.  3.100
   libswresample   0. 17.102 /  0. 17.102
   libpostproc    52.  3.100 / 52.  3.100
 Input #0, lavfi, from 'testsrc=d=300':
   Duration: N/A, start: 0.000000, bitrate: N/A
     Stream #0:0: Video: rawvideo (RGB[24] / 0x18424752), rgb24, 320x240
 [SAR 1:1 DAR 4:3], 25 tbr, 25 tbn, 25 tbc
 Output #0, nut, to 'test.nut':
   Metadata:
     encoder         : Lavf55.7.100
     Stream #0:0: Video: ffv1 (FFV1 / 0x31564646), bgr0, 320x240 [SAR 1:1
 DAR 4:3], q=2-31, 200 kb/s, 51200 tbn, 25 tbc
 Stream mapping:
   Stream #0:0 -> #0:0 (rawvideo -> ffv1)
 Press [q] to stop, [?] for help
 frame= 7500 fps=175 q=-1.0 Lsize=   32327kB time=00:05:00.00 bitrate=
 882.7kbits/s
 video:32281kB audio:0kB subtitle:0 global headers:0kB muxing overhead
 0.142917%
 }}}

 Spawn a memory monitor, and try:

 {{{
 % ./ffmpeg -re -i test.nut -f null -
 ffmpeg version N-53267-g1de28cb Copyright (c) 2000-2013 the FFmpeg
 developers
   built on May 19 2013 12:29:47 with gcc 4.8.0 (GCC) 20130502 (prerelease)
   configuration: --enable-gpl --enable-version3 --enable-fontconfig
 --enable-libfreetype --enable-libmp3lame --enable-libvorbis --enable-
 libxvid --enable-libx264 --enable-libvpx --enable-libtheora --enable-
 x11grab --enable-libopenjpeg --enable-libass --enable-libmodplug --enable-
 libv4l2 --cc=colorgcc --samples=/home/ubitux/fate-samples
 --prefix=/tmp/ffinstall --disable-runtime-cpudetect --enable-libcelt
 --enable-libopencv --enable-frei0r --enable-libcaca --enable-libiec61883
 --enable-libopencore-amrwb --enable-libopencore-amrnb --enable-libopus
 --enable-libpulse --enable-libspeex --enable-libquvi --assert-level=2
 --enable-libzmq
   libavutil      52. 33.100 / 52. 33.100
   libavcodec     55. 10.101 / 55. 10.101
   libavformat    55.  7.100 / 55.  7.100
   libavdevice    55.  0.100 / 55.  0.100
   libavfilter     3. 68.101 /  3. 68.101
   libswscale      2.  3.100 /  2.  3.100
   libswresample   0. 17.102 /  0. 17.102
   libpostproc    52.  3.100 / 52.  3.100
 Input #0, nut, from 'test.nut':
   Metadata:
     encoder         : Lavf55.7.100
   Duration: 00:04:59.96, start: 0.000000, bitrate: 882 kb/s
     Stream #0:0: Video: ffv1 (FFV1 / 0x31564646), bgr0, 320x240, SAR 1:1
 DAR 4:3, 25 fps, 25 tbr, 51200 tbn, 51200 tbc
 Output #0, null, to 'pipe:':
   Metadata:
     encoder         : Lavf55.7.100
     Stream #0:0: Video: rawvideo (BGR[0] / 0x524742), bgr0, 320x240 [SAR
 1:1 DAR 4:3], q=2-31, 200 kb/s, 90k tbn, 25 tbc
 Stream mapping:
   Stream #0:0 -> #0:0 (ffv1 -> rawvideo)
 Press [q] to stop, [?] for help
 [null @ 0x2fba060] Encoder did not produce proper pts, making some up.
 frame=  554 fps= 25 q=0.0 Lsize=N/A time=00:00:22.16 bitrate=N/A
 }}}

 Memory will grow slowly and never reduce. Remove the {{{-re}}} and you'll
 membomb yourself in a few seconds.

 This is a regression (not reproducible in 1.2), but I've not looked at
 which commit introduced the regression.

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2589>
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