[FFmpeg-trac] #3109(undetermined:new): FFMPEG crashes after producing an error of more frames in 2nd pass

FFmpeg trac at avcodec.org
Fri Nov 1 17:18:50 CET 2013


#3109: FFMPEG crashes after producing an error of more frames in 2nd pass
-------------------------------------+-------------------------------------
             Reporter:  ramitbhalla  |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
              Version:  unspecified  |  undetermined
             Keywords:               |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
-------------------------------------+-------------------------------------

Comment (by ramitbhalla):

 Okay I isolated the issue, it's the audio codec, when enabled it causes
 ffmpeg to crash, when disabled it works fine:


 {{{
 ffmpeg.2314 -threads 0 -y -i "2ndpassfail.ts" -vcodec libx264 -b 1800000
 -pass 2 -p
 asslogfile "2ndpassfail.log" -acodec copy 2ndpassfail.mp4
 ffmpeg version N-54802-gfc6de70 Copyright (c) 2000-2013 the FFmpeg
 developers
   built on Jul 18 2013 18:01:33 with gcc 4.7.3 (GCC)
   configuration: --enable-gpl --enable-version3 --disable-w32threads
 --enable-avisynth --enable-bzlib --enable-fontconfi
 g --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-
 libbluray --enable-libcaca --enable-libfreetyp
 e --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame
 --enable-libopencore-amrnb --enable-libopenco
 re-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-
 libschroedinger --enable-libsoxr --enable-libsp
 eex --enable-libtheora --enable-libtwolame --enable-libvo-aacenc --enable-
 libvo-amrwbenc --enable-libvorbis --enable-lib
 vpx --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
   libavutil      52. 40.100 / 52. 40.100
   libavcodec     55. 18.102 / 55. 18.102
   libavformat    55. 12.102 / 55. 12.102
   libavdevice    55.  3.100 / 55.  3.100
   libavfilter     3. 81.101 /  3. 81.101
   libswscale      2.  4.100 /  2.  4.100
   libswresample   0. 17.102 /  0. 17.102
   libpostproc    52.  3.100 / 52.  3.100
 [mpegts @ 027d97e0] PES packet size mismatch
 Input #0, mpegts, from '2ndpassfail.ts':
   Duration: 00:00:13.07, start: 1.424000, bitrate: 12839 kb/s
   Program 1
     Metadata:
       service_name    : Syfy HD
       service_provider: SCIFIHD
     Stream #0:0[0x100](eng): Audio: ac3 ([129][0][0][0] / 0x0081), 48000
 Hz, 5.1(side), fltp, 384 kb/s
     Stream #0:1[0x101](eng): Audio: ac3 ([129][0][0][0] / 0x0081), 48000
 Hz, 5.1(side), fltp, 384 kb/s
     Stream #0:2[0x102]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002),
 yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 29.97 f
 ps, 29.97 tbr, 90k tbn, 59.94 tbc
 Please use -b:a or -b:v, -b is ambiguous
 [libx264 @ 0472db20] using SAR=1/1
 [libx264 @ 0472db20] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
 [libx264 @ 0472db20] profile High, level 4.0
 [libx264 @ 0472db20] 264 - core 135 r2345 f0c1c53 - H.264/MPEG-4 AVC codec
 - Copyleft 2003-2013 - http://www.videolan.or
 g/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113
 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 m
 e_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11
 fast_pskip=1 chroma_qp_offset=-2 threads=6 lookahead_thre
 ads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0
 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1
 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25
 scenecut=40 intra_refresh=0 rc_lookahead=40 rc
 =2pass mbtree=1 bitrate=1800 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69
 qpstep=4 cplxblur=20.0 qblur=0.5 ip_ratio=1.40 aq=1
 :1.00
 [mp4 @ 027debc0] track 1: codec frame size is not set
 Output #0, mp4, to '2ndpassfail.mp4':
   Metadata:
     encoder         : Lavf55.12.102
     Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p,
 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, pass 2,
  1800 kb/s, 30k tbn, 29.97 tbc
     Stream #0:1(eng): Audio: ac3 ([165][0][0][0] / 0x00A5), 48000 Hz,
 5.1(side), 384 kb/s
 Stream mapping:
   Stream #0:2 -> #0:0 (mpeg2video -> libx264)
   Stream #0:0 -> #0:1 (copy)
 Press [q] to stop, [?] for help
 2nd pass has more frames than 1st pass (377)ime=00:00:12.51
 bitrate=2277.1kbits/s dup=17 drop=0
 [libx264 @ 0472db20] continuing anyway, at constant QP=33
 [libx264 @ 0472db20] disabling adaptive B-frames
 }}}

 fine when disbaled
 {{{
 ffmpeg.2314 -threads 0 -y -i "2ndpassfail.ts" -vcodec libx264 -b 1800000
 -pass 2 -p
 asslogfile "2ndpassfail.log" -an 2ndpassfail.mp4
 ffmpeg version N-54802-gfc6de70 Copyright (c) 2000-2013 the FFmpeg
 developers
   built on Jul 18 2013 18:01:33 with gcc 4.7.3 (GCC)
   configuration: --enable-gpl --enable-version3 --disable-w32threads
 --enable-avisynth --enable-bzlib --enable-fontconfi
 g --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-
 libbluray --enable-libcaca --enable-libfreetyp
 e --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame
 --enable-libopencore-amrnb --enable-libopenco
 re-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-
 libschroedinger --enable-libsoxr --enable-libsp
 eex --enable-libtheora --enable-libtwolame --enable-libvo-aacenc --enable-
 libvo-amrwbenc --enable-libvorbis --enable-lib
 vpx --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
   libavutil      52. 40.100 / 52. 40.100
   libavcodec     55. 18.102 / 55. 18.102
   libavformat    55. 12.102 / 55. 12.102
   libavdevice    55.  3.100 / 55.  3.100
   libavfilter     3. 81.101 /  3. 81.101
   libswscale      2.  4.100 /  2.  4.100
   libswresample   0. 17.102 /  0. 17.102
   libpostproc    52.  3.100 / 52.  3.100
 [mpegts @ 026e97e0] PES packet size mismatch
 Input #0, mpegts, from '2ndpassfail.ts':
   Duration: 00:00:13.07, start: 1.424000, bitrate: 12839 kb/s
   Program 1
     Metadata:
       service_name    : Syfy HD
       service_provider: SCIFIHD
     Stream #0:0[0x100](eng): Audio: ac3 ([129][0][0][0] / 0x0081), 48000
 Hz, 5.1(side), fltp, 384 kb/s
     Stream #0:1[0x101](eng): Audio: ac3 ([129][0][0][0] / 0x0081), 48000
 Hz, 5.1(side), fltp, 384 kb/s
     Stream #0:2[0x102]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002),
 yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 29.97 f
 ps, 29.97 tbr, 90k tbn, 59.94 tbc
 Please use -b:a or -b:v, -b is ambiguous
 [libx264 @ 0462db20] using SAR=1/1
 [libx264 @ 0462db20] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
 [libx264 @ 0462db20] profile High, level 4.0
 [libx264 @ 0462db20] 264 - core 135 r2345 f0c1c53 - H.264/MPEG-4 AVC codec
 - Copyleft 2003-2013 - http://www.videolan.or
 g/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113
 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 m
 e_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11
 fast_pskip=1 chroma_qp_offset=-2 threads=6 lookahead_thre
 ads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0
 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1
 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25
 scenecut=40 intra_refresh=0 rc_lookahead=40 rc
 =2pass mbtree=1 bitrate=1800 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69
 qpstep=4 cplxblur=20.0 qblur=0.5 ip_ratio=1.40 aq=1
 :1.00
 Output #0, mp4, to '2ndpassfail.mp4':
   Metadata:
     encoder         : Lavf55.12.102
     Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p,
 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, pass 2,
  1800 kb/s, 30k tbn, 29.97 tbc
 Stream mapping:
   Stream #0:2 -> #0:0 (mpeg2video -> libx264)
 Press [q] to stop, [?] for help
 PES packet size mismatch.0 size=    2708kB time=00:00:12.01
 bitrate=1846.7kbits/s dup=1 drop=0
 [mpeg2video @ 026e3200] Warning MVs not available
 [mpeg2video @ 026e3200] concealing 7367 DC, 7367 AC, 7367 MV errors in B
 frame
 frame=  377 fps= 13 q=-1.0 Lsize=    2811kB time=00:00:12.51
 bitrate=1840.6kbits/s dup=1 drop=0
 video:2806kB audio:0kB subtitle:0 global headers:0kB muxing overhead
 0.174997%
 [libx264 @ 0462db20] frame I:9     Avg QP:29.25  size: 49049
 [libx264 @ 0462db20] frame P:163   Avg QP:32.10  size: 11226
 [libx264 @ 0462db20] frame B:205   Avg QP:35.20  size:  2935
 [libx264 @ 0462db20] consecutive B-frames: 18.3% 24.9%  8.0% 48.8%
 [libx264 @ 0462db20] mb I  I16..4: 39.0% 59.1%  1.9%
 [libx264 @ 0462db20] mb P  I16..4:  4.7%  6.3%  0.4%  P16..4: 27.3%  2.0%
 1.1%  0.0%  0.0%    skip:58.2%
 [libx264 @ 0462db20] mb B  I16..4:  0.1%  0.3%  0.0%  B16..8: 18.5%  0.5%
 0.1%  direct: 0.3%  skip:80.2%  L0:41.2% L1:5
 7.9% BI: 0.9%
 [libx264 @ 0462db20] 8x8 transform intra:56.8% inter:94.2%
 [libx264 @ 0462db20] coded y,uvDC,uvAC intra: 32.1% 54.8% 9.1% inter: 3.5%
 5.7% 0.1%
 [libx264 @ 0462db20] i16 v,h,dc,p: 37% 32%  9% 22%
 [libx264 @ 0462db20] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 20% 15% 45%  3%  3%
 3%  3%  4%  4%
 [libx264 @ 0462db20] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu:  8% 77%  7%  1%  2%
 1%  2%  1%  1%
 [libx264 @ 0462db20] i8c dc,h,v,p: 60% 18% 18%  4%
 [libx264 @ 0462db20] Weighted P-Frames: Y:0.0% UV:0.0%
 [libx264 @ 0462db20] ref P L0: 56.9% 12.8% 20.4%  9.9%
 [libx264 @ 0462db20] ref B L0: 84.1% 12.5%  3.4%
 [libx264 @ 0462db20] ref B L1: 96.2%  3.8%
 [libx264 @ 0462db20] kb/s:1827.13
 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/3109#comment:4>
FFmpeg <http://ffmpeg.org>
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