[FFmpeg-trac] #3504(undetermined:new): Memory allocation error when coding very long files using libx264

FFmpeg trac at avcodec.org
Thu Mar 27 10:32:31 CET 2014


#3504: Memory allocation error when coding very long files using libx264
-------------------------------------+-------------------------------------
             Reporter:  kislovskij   |                     Type:  defect
               Status:  new          |                 Priority:  important
            Component:               |                  Version:  2.1.4
  undetermined                       |               Blocked By:
             Keywords:               |  Reproduced by developer:  0
             Blocking:               |
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:

 When coding an around 260 hours long video using libx264, I am
 experiencing a memory allocation error although I have memory left.

 Also I tried to "purge" the memory every minute while coding the video,
 but still no success.

 Expected total frames: 23185800
 Frames until error: 21911761

 Verbose log output:
 {{{
 [...]
 [AVIOContext @ 0x7fc87a100560] Statistics: 108445 bytes read, 0 seeks
 [libx264 @ 0x7fc87984b600] frame=21911761 QP=0.00 NAL=2 Slice:P
 Poc:1161650 I:0    P:0    SKIP:3600 size=11 bytes
 av_interleaved_write_frame(): Cannot allocate memory
 [AVIOContext @ 0x7fc879425540] Statistics: 0 seeks, 55465203 writeouts
 [AVIOContext @ 0x7fc87940ed40] Statistics: 3505979392 bytes read, 0 seeks
 }}}
 How to reproduce:
 {{{
 % ffmpeg -f image2 -loop 1 -i keyvisual_video.png -strict experimental -i
 test-audio.mp3 -r 25 -vcodec libx264 -preset ultrafast -tune stillimage
 -acodec copy testoutput.mp4
 ffmpeg version 2.1.4 Copyright (c) 2000-2014 the FFmpeg developers
   built on Mar 19 2014 11:41:50 with Apple LLVM version 4.2
 (clang-425.0.28) (based on LLVM 3.2svn)
   configuration: --prefix=/usr/local/Cellar/ffmpeg/2.1.4 --enable-shared
 --enable-pthreads --enable-gpl --enable-version3 --enable-nonfree
 --enable-hardcoded-tables --enable-avresample --enable-vda --cc=clang
 --host-cflags= --host-ldflags= --enable-libx264 --enable-libfaac --enable-
 libmp3lame --enable-libxvid --enable-libfreetype --enable-libtheora
 --enable-libvorbis --enable-libvpx --enable-libass --enable-libfdk-aac
 --enable-libopenjpeg --extra-
 cflags='-I/usr/local/Cellar/openjpeg/1.5.1/include/openjpeg-1.5 '
   libavutil      52. 48.101 / 52. 48.101
   libavcodec     55. 39.101 / 55. 39.101
   libavformat    55. 19.104 / 55. 19.104
   libavdevice    55.  5.100 / 55.  5.100
   libavfilter     3. 90.100 /  3. 90.100
   libavresample   1.  1.  0 /  1.  1.  0
   libswscale      2.  5.101 /  2.  5.101
   libswresample   0. 17.104 /  0. 17.104
   libpostproc    52.  3.100 / 52.  3.100
 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/3504>
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