[FFmpeg-trac] #2846(undetermined:new): Two-pass libx264 -preset veryslow crashes on some MPEG-type inputs
FFmpeg
trac at avcodec.org
Fri Aug 23 16:14:26 CEST 2013
#2846: Two-pass libx264 -preset veryslow crashes on some MPEG-type inputs
-------------------------------------+-------------------------------------
Reporter: | Owner:
francois.visagie@… | Status: new
Type: defect | Component:
Priority: normal | undetermined
Version: unspecified | Resolution:
Keywords: crash | Blocked By:
libx264 | Reproduced by developer: 0
Blocking: |
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Comment (by francois.visagie@…):
Replying to [comment:16 cehoyos]:
> Replying to [comment:15 francois.visagie@…]:
> > the fact remains that at least '-c:v libx264 -preset ultrafast'
handles this particular scenario correctly
>
> (I don't think so, I actually believe that it behaves much worse than
-preset veryslow.)
> Please provide command lines and complete, uncut console output.
Here you go:
C:\Users\fvisagie\Videos\Home Videos\Testing\Bug information>ffmpeg -y -i
ticket_2846_crash_libx264.vob -an -c:v libx264 -preset ultrafast
-fastfirstpass 1 -f r
awvideo -b:v 1000000 -pass 1 NUL
ffmpeg version N-55159-gf118b41 Copyright (c) 2000-2013 the FFmpeg
developers
built on Aug 1 2013 18:01:57 with gcc 4.7.3 (GCC)
configuration: --enable-gpl --enable-version3 --disable-w32threads
--enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r
--enable-gnutls --enab
le-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-
libfreetype --enable-libgsm --enable-libilbc --enable-libmodplug --enable-
libmp3lame --ena
ble-libopencore-amrnb --enable-libopencore-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-libvpx --enable-libx264
--enable-libxavs --
enable-libxvid --enable-zlib
libavutil 52. 40.100 / 52. 40.100
libavcodec 55. 19.100 / 55. 19.100
libavformat 55. 12.102 / 55. 12.102
libavdevice 55. 3.100 / 55. 3.100
libavfilter 3. 82.100 / 3. 82.100
libswscale 2. 4.100 / 2. 4.100
libswresample 0. 17.103 / 0. 17.103
libpostproc 52. 3.100 / 52. 3.100
[mpeg2video @ 03b0e220] Invalid frame dimensions 0x0.
Input #0, mpeg, from 'ticket_2846_crash_libx264.vob':
Duration: 00:02:11.08, start: 4199.857333, bitrate: 7838 kb/s
Stream #0:0[0x8a]: Audio: dts (DTS), 48000 Hz, 5.1(side), fltp, 1536
kb/s
Stream #0:1[0x80]: Audio: ac3, 48000 Hz, stereo, fltp, 192 kb/s
Stream #0:2[0x1e0]: Video: mpeg2video (Main), yuv420p, 720x480 [SAR
32:27 DAR 16:9], max. 6000 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc
Stream #0:3[0x1bf]: Data: dvd_nav_packet
[libx264 @ 04181020] using SAR=32/27
[libx264 @ 04181020] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
AVX
[libx264 @ 04181020] profile Constrained Baseline, level 3.0
Output #0, rawvideo, to 'NUL':
Metadata:
encoder : Lavf55.12.102
Stream #0:0: Video: h264 (libx264), yuv420p, 720x480 [SAR 32:27 DAR
16:9], q=-1--1, pass 1, 1000 kb/s, 90k tbn, 29.97 tbc
Stream mapping:
Stream #0:2 -> #0:0 (mpeg2video -> libx264)
Press [q] to stop, [?] for help
[mpeg2video @ 03b0e220] warning: first frame is no keyframe
Last message repeated 1 times
frame= 3924 fps=526 q=-1.0 Lsize= 15960kB time=00:02:10.93 bitrate=
998.6kbits/s dup=0 drop=1
video:15960kB audio:0kB subtitle:0 global headers:0kB muxing overhead
0.000000%
[libx264 @ 04181020] frame I:16 Avg QP:32.12 size: 11993
[libx264 @ 04181020] frame P:3908 Avg QP:35.22 size: 4133
[libx264 @ 04181020] mb I I16..4: 100.0% 0.0% 0.0%
[libx264 @ 04181020] mb P I16..4: 21.4% 0.0% 0.0% P16..4: 40.3% 0.0%
0.0% 0.0% 0.0% skip:38.2%
[libx264 @ 04181020] final ratefactor: 31.59
[libx264 @ 04181020] coded y,uvDC,uvAC intra: 18.0% 23.2% 1.9% inter:
15.1% 15.1% 0.3%
[libx264 @ 04181020] i16 v,h,dc,p: 34% 33% 18% 15%
[libx264 @ 04181020] i8c dc,h,v,p: 56% 21% 16% 7%
[libx264 @ 04181020] kb/s:998.56
C:\Users\fvisagie\Videos\Home Videos\Testing\Bug information>ffmpeg -y -i
ticket_2846_crash_libx264.vob -filter:a aformat=channel_layouts=stereo
-c:v libx264 -
preset ultrafast -b:v 1000000 -pass 2 zzz.mp4
ffmpeg version N-55159-gf118b41 Copyright (c) 2000-2013 the FFmpeg
developers
built on Aug 1 2013 18:01:57 with gcc 4.7.3 (GCC)
configuration: --enable-gpl --enable-version3 --disable-w32threads
--enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r
--enable-gnutls --enab
le-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-
libfreetype --enable-libgsm --enable-libilbc --enable-libmodplug --enable-
libmp3lame --ena
ble-libopencore-amrnb --enable-libopencore-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-libvpx --enable-libx264
--enable-libxavs --
enable-libxvid --enable-zlib
libavutil 52. 40.100 / 52. 40.100
libavcodec 55. 19.100 / 55. 19.100
libavformat 55. 12.102 / 55. 12.102
libavdevice 55. 3.100 / 55. 3.100
libavfilter 3. 82.100 / 3. 82.100
libswscale 2. 4.100 / 2. 4.100
libswresample 0. 17.103 / 0. 17.103
libpostproc 52. 3.100 / 52. 3.100
[mpeg2video @ 03226f60] Invalid frame dimensions 0x0.
Input #0, mpeg, from 'ticket_2846_crash_libx264.vob':
Duration: 00:02:11.08, start: 4199.857333, bitrate: 7838 kb/s
Stream #0:0[0x8a]: Audio: dts (DTS), 48000 Hz, 5.1(side), fltp, 1536
kb/s
Stream #0:1[0x80]: Audio: ac3, 48000 Hz, stereo, fltp, 192 kb/s
Stream #0:2[0x1e0]: Video: mpeg2video (Main), yuv420p, 720x480 [SAR
32:27 DAR 16:9], max. 6000 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc
Stream #0:3[0x1bf]: Data: dvd_nav_packet
[libx264 @ 0447f020] using SAR=32/27
[libx264 @ 0447f020] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
AVX
[libx264 @ 0447f020] profile Constrained Baseline, level 3.0
[libx264 @ 0447f020] 264 - core 135 r2345 f0c1c53 - H.264/MPEG-4 AVC codec
- Copyleft 2003-2013 - http://www.videolan.org/x264.html - options:
cabac=0 ref=1 deb
lock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0
me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11
fast_pskip=1 chroma_qp_
offset=0 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1
interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0
keyint=250 keyint_m
in=25 scenecut=0 intra_refresh=0 rc=2pass mbtree=0 bitrate=1000
ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 cplxblur=20.0 qblur=0.5
ip_ratio=1.40 aq=0
Output #0, mp4, to 'zzz.mp4':
Metadata:
encoder : Lavf55.12.102
Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p,
720x480 [SAR 32:27 DAR 16:9], q=-1--1, pass 2, 1000 kb/s, 30k tbn, 29.97
tbc
Stream #0:1: Audio: aac (libvo_aacenc) ([64][0][0][0] / 0x0040), 48000
Hz, stereo, s16, 128 kb/s
Stream mapping:
Stream #0:2 -> #0:0 (mpeg2video -> libx264)
Stream #0:0 -> #0:1 (dca -> libvo_aacenc)
Press [q] to stop, [?] for help
[mpeg2video @ 03226f60] warning: first frame is no keyframe
Last message repeated 1 times
[libx264 @ 0447f020] 2nd pass has more frames than 1st pass
(3924)e=1126.9kbits/s dup=4 drop=0
[libx264 @ 0447f020] continuing anyway, at constant QP=36
frame= 3929 fps=408 q=-1.0 Lsize= 18182kB time=00:02:11.10
bitrate=1136.1kbits/s dup=4 drop=0
video:16021kB audio:2049kB subtitle:0 global headers:0kB muxing overhead
0.617050%
[libx264 @ 0447f020] frame I:16 Avg QP:32.50 size: 11913
[libx264 @ 0447f020] frame P:3913 Avg QP:35.27 size: 4144
[libx264 @ 0447f020] mb I I16..4: 100.0% 0.0% 0.0%
[libx264 @ 0447f020] mb P I16..4: 22.5% 0.0% 0.0% P16..4: 39.0% 0.0%
0.0% 0.0% 0.0% skip:38.5%
[libx264 @ 0447f020] coded y,uvDC,uvAC intra: 19.0% 23.7% 1.7% inter:
15.0% 14.6% 0.2%
[libx264 @ 0447f020] i16 v,h,dc,p: 34% 33% 18% 15%
[libx264 @ 0447f020] i8c dc,h,v,p: 55% 22% 16% 8%
[libx264 @ 0447f020] kb/s:1001.10
C:\Users\fvisagie\Videos\Home Videos\Testing\Bug information>
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2846#comment:17>
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