[FFmpeg-trac] #5493(avfilter:open): incomplete x264 MB tree with framerate filter

FFmpeg trac at avcodec.org
Wed Jun 15 15:11:05 CEST 2016


#5493: incomplete x264 MB tree with framerate filter
-------------------------------------+-------------------------------------
             Reporter:  blacktrash   |                    Owner:
                 Type:  defect       |                   Status:  open
             Priority:  important    |                Component:  avfilter
              Version:  git-master   |               Resolution:
             Keywords:  framerate    |               Blocked By:
  libx264 regression                 |  Reproduced by developer:  1
             Blocking:               |
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by blacktrash):

 Replying to [comment:7 michael]:
 > Here:
 > {{{
 > x264 0.146.2538 121396c
 > (libswscale 3.1.101)
 > (libavformat 56.30.100)
 > built on May 27 2015, gcc: 4.6.3
 > x264 configuration: --bit-depth=8 --chroma-format=all
 > libx264 configuration: --bit-depth=8 --chroma-format=all
 > x264 license: GPL version 2 or later
 > libswscale/libavformat license: GPL version 2 or later
 > }}}

 I can't compile that x264 revision:
 {{{
 gcc -Wno-maybe-uninitialized -Wshadow -O3 -ffast-math -m64  -Wall -I. -I.
 -I/sw/include -arch x86_64 -std=gnu99  -I/usr/local/include
 -I/usr/local/include  -fPIC -fomit-frame-pointer -fno-tree-vectorize   -c
 -o output/matroska_ebml.o output/matroska_ebml.c
 warningwarningwarning: : : warningwarningunknown: :  warning
 unknownoptionunknownunknown   unknown'-Wno-maybe-uninitialized';warning
 warningwarningwarningdidwarning option option:    '-Wno-maybe-
 uninitialized'; option optionyou'-Wno-maybe-uninitialized'; did   did
 '-Wno-maybe-uninitialized';unknown  you '-Wno-maybe-uninitialized';mean
 warningdidyou '-Wno-uninitialized'? meandid
  you        '-Wno-uninitialized'?option
 [-Wunknown-warning-option]       youmean[-Wunknown-warning-option]
 '-Wno-uninitialized'?meanmean

  '-Wno-uninitialized'?      '-Wno-uninitialized'?[-Wunknown-warning-
 option]

             [-Wunknown-warning-option]
 [-Wunknown-warning-option]
 '-Wno-maybe-uninitialized';
  did you mean '-Wno-uninitialized'?
       [-Wunknown-warning-option]
 warning: unknown warning option '-Wno-maybe-uninitialized'; did you mean
 '-Wno-uninitialized'?
       [-Wunknown-warning-option]
 warning: unknown warning option '-Wno-maybe-uninitialized'; did you mean
 '-Wno-uninitialized'?
       [-Wunknown-warning-option]
 x264.c:445:27: error: variable has incomplete type 'enum PixelFormat'
     for( enum PixelFormat i = AV_PIX_FMT_NONE+1; i < AV_PIX_FMT_NB; i++ )
                           ^
 x264.c:445:15: note: forward declaration of 'enum PixelFormat'
     for( enum PixelFormat i = AV_PIX_FMT_NONE+1; i < AV_PIX_FMT_NB; i++ )
               ^
 x264.c:445:15: error: declaration of non-local variable in 'for' loop
     for( enum PixelFormat i = AV_PIX_FMT_NONE+1; i < AV_PIX_FMT_NB; i++ )
               ^
 1 warning generated.
 gcc -Wno-maybe-uninitialized -Wshadow -O3 -ffast-math -m64  -Wall -I. -I.
 -I/sw/include -arch x86_64 -std=gnu99  -I/usr/local/include
 -I/usr/local/include  -fPIC -fomit-frame-pointer -fno-tree-vectorize   -c
 -o output/flv.o output/flv.c
 1 warning and 2 errors generated.
 <builtin>: recipe for target 'x264.o' failed
 make: *** [x264.o] Error 1
 make: *** Waiting for unfinished jobs....
 }}}
 I'll try with x264 stable, and maybe other scenarios.

 Here's with both ffmpeg git HEAD of yesterday and very latest x264 master
 HEAD.

 I have also changed the filter chain: `framerate=30,scale=640:360,fps=30`
 for these reasons:
 1. normally one would move `framerate` more to the beginning of the chain
 2. while 1. avoids the error, imho it also covers it up: adding `fps` at
 the end is the most compact way I found to simulate a more complex
 production scenario, it should also prove that something's fishy happens
 in the filter chain

 Note that the x264 error has somewhat more details with its latest
 version.

 {{{
 $ ffmpeg -i issue5493.mp4 -filter:v framerate=30,scale=640:360,fps=30 -b:v
 500k -pass 1 -y test.mp4
 ffmpeg version N-80335-gcb46b78 Copyright (c) 2000-2016 the FFmpeg
 developers
   built with Apple LLVM version 7.0.2 (clang-700.1.81)
   configuration: --enable-gpl --enable-nonfree --disable-ffserver
 --enable-shared --enable-openssl --enable-libspeex --enable-libopus
 --enable-libfdk-aac --enable-libx265 --enable-libx264 --enable-libxvid
 --enable-libfaac --enable-libmp3lame --enable-libtheora --enable-libvorbis
 --enable-libvpx --enable-libvidstab --extra-cflags=-I/sw/include --extra-
 libs=-L/sw/lib
   libavutil      55. 24.100 / 55. 24.100
   libavcodec     57. 46.100 / 57. 46.100
   libavformat    57. 38.100 / 57. 38.100
   libavdevice    57.  0.101 / 57.  0.101
   libavfilter     6. 46.101 /  6. 46.101
   libswscale      4.  1.100 /  4.  1.100
   libswresample   2.  1.100 /  2.  1.100
   libpostproc    54.  0.100 / 54.  0.100
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'issue5493.mp4':
   Metadata:
     major_brand     : mp42
     minor_version   : 0
     compatible_brands: isommp42
     creation_time   : 2016-04-24 09:48:33
     location        : +60.4916+022.2685/
     location-eng    : +60.4916+022.2685/
     com.android.version: 6.0.1
   Duration: 00:00:52.12, start: 0.000000, bitrate: 15880 kb/s
     Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
 1920x1080, 15715 kb/s, SAR 1:1 DAR 16:9, 25.48 fps, 90k tbr, 90k tbn, 180k
 tbc (default)
     Metadata:
       creation_time   : 2016-04-24 09:48:33
       handler_name    : VideoHandle
     Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz,
 stereo, fltp, 196 kb/s (default)
     Metadata:
       creation_time   : 2016-04-24 09:48:33
       handler_name    : SoundHandle
 [Parsed_framerate_0 @ 0x7ff5b2d240a0] time base:1/90000 -> 1/90000 exact:1
 [Parsed_framerate_0 @ 0x7ff5b2d240a0] fps -> fps:30/1 scene score:7.000000
 interpolate start:15 end:240
 [libx264 @ 0x7ff5b3009e00] using SAR=1/1
 [libx264 @ 0x7ff5b3009e00] using cpu capabilities: MMX2 SSE2Fast SSSE3
 SSE4.2 AVX
 [libx264 @ 0x7ff5b3009e00] profile Main, level 3.0
 [libx264 @ 0x7ff5b3009e00] 264 - core 148 r2705 3f5ed56 - H.264/MPEG-4 AVC
 codec - Copyleft 2003-2016 - http://www.videolan.org/x264.html - options:
 cabac=1 ref=1 deblock=1:0:0 analyse=0x1:0 me=dia subme=2 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=11
 lookahead_threads=2 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=abr mbtree=1 bitrate=500
 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
 [mp4 @ 0x7ff5b3008c00] Using AVStream.codec to pass codec parameters to
 muxers is deprecated, use AVStream.codecpar instead.
     Last message repeated 1 times
 Output #0, mp4, to 'test.mp4':
   Metadata:
     major_brand     : mp42
     minor_version   : 0
     compatible_brands: isommp42
     com.android.version: 6.0.1
     location        : +60.4916+022.2685/
     location-eng    : +60.4916+022.2685/
     encoder         : Lavf57.38.100
     Stream #0:0(eng): Video: h264 (libx264) ([33][0][0][0] / 0x0021),
 yuv420p, 640x360 [SAR 1:1 DAR 16:9], q=-1--1, 500 kb/s, 30 fps, 15360 tbn,
 30 tbc (default)
     Metadata:
       creation_time   : 2016-04-24 09:48:33
       handler_name    : VideoHandle
       encoder         : Lavc57.46.100 libx264
     Side data:
       cpb: bitrate max/min/avg: 0/0/500000 buffer size: 0 vbv_delay: -1
     Stream #0:1(eng): Audio: aac (LC) ([64][0][0][0] / 0x0040), 48000 Hz,
 stereo, fltp, 128 kb/s (default)
     Metadata:
       creation_time   : 2016-04-24 09:48:33
       handler_name    : SoundHandle
       encoder         : Lavc57.46.100 aac
 Stream mapping:
   Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
   Stream #0:1 -> #0:1 (aac (native) -> aac (native))
 Press [q] to stop, [?] for help
 frame=   60 fps=0.0 q=37.0 size=      10kB time=00:00:03.01 bitrate=
 25.9kbits/s speed=5.96x
 frame=  134 fps=133 q=31.0 size=     177kB time=00:00:05.01 bitrate=
 289.1kbits/s speed=4.97x
 frame=  207 fps=137 q=30.0 size=     361kB time=00:00:07.02 bitrate=
 421.1kbits/s speed=4.65x
 frame=  274 fps=136 q=28.0 size=     511kB time=00:00:10.03 bitrate=
 417.4kbits/s speed=4.98x
 frame=  346 fps=137 q=28.0 size=     701kB time=00:00:12.03 bitrate=
 476.9kbits/s speed=4.77x
 frame=  417 fps=138 q=31.0 size=     957kB time=00:00:14.04 bitrate=
 558.0kbits/s speed=4.65x
 frame=  486 fps=138 q=30.0 size=    1111kB time=00:00:17.05 bitrate=
 533.7kbits/s speed=4.83x
 frame=  558 fps=138 q=30.0 size=    1280kB time=00:00:19.05 bitrate=
 550.2kbits/s speed=4.73x
 frame=  631 fps=139 q=31.0 size=    1509kB time=00:00:21.06 bitrate=
 586.7kbits/s speed=4.65x
 frame=  699 fps=139 q=31.0 size=    1692kB time=00:00:24.06 bitrate=
 575.9kbits/s speed=4.78x
 frame=  770 fps=139 q=30.0 size=    1838kB time=00:00:26.07 bitrate=
 577.4kbits/s speed=4.71x
 frame=  843 fps=140 q=30.0 size=    1998kB time=00:00:28.08 bitrate=
 582.8kbits/s speed=4.65x
 frame=  908 fps=139 q=29.0 size=    2145kB time=00:00:30.10 bitrate=
 583.5kbits/s speed= 4.6x
 frame=  971 fps=138 q=30.0 size=    2347kB time=00:00:32.38 bitrate=
 593.5kbits/s speed= 4.6x
 frame= 1037 fps=137 q=30.0 size=    2514kB time=00:00:35.09 bitrate=
 586.8kbits/s speed=4.65x
 frame= 1102 fps=137 q=30.0 size=    2662kB time=00:00:37.10 bitrate=
 587.7kbits/s speed=4.61x
 frame= 1169 fps=137 q=30.0 size=    2837kB time=00:00:39.10 bitrate=
 594.2kbits/s speed=4.57x
 frame= 1235 fps=136 q=30.0 size=    3003kB time=00:00:41.11 bitrate=
 598.4kbits/s speed=4.54x
 frame= 1294 fps=135 q=29.0 size=    3120kB time=00:00:43.12 bitrate=
 592.7kbits/s speed=4.51x
 frame= 1367 fps=136 q=29.0 size=    3281kB time=00:00:45.12 bitrate=
 595.6kbits/s speed=4.49x
 frame= 1430 fps=135 q=29.0 size=    3433kB time=00:00:47.13 bitrate=
 596.7kbits/s speed=4.46x
 frame= 1493 fps=135 q=29.0 size=    3586kB time=00:00:49.86 bitrate=
 589.2kbits/s speed=4.51x
 frame= 1557 fps=135 q=28.0 size=    3729kB time=00:00:52.08 bitrate=
 586.5kbits/s speed=4.51x
 frame= 1559 fps=134 q=-1.0 Lsize=    3989kB time=00:00:52.12 bitrate=
 627.0kbits/s speed=4.48x
 video:3119kB audio:813kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 1.448805%
 [libx264 @ 0x7ff5b3009e00] frame I:12    Avg QP:24.46  size:  8829
 [libx264 @ 0x7ff5b3009e00] frame P:419   Avg QP:26.64  size:  4157
 [libx264 @ 0x7ff5b3009e00] frame B:1128  Avg QP:29.56  size:  1193
 [libx264 @ 0x7ff5b3009e00] consecutive B-frames:  1.9%  3.0%  6.2% 89.0%
 [libx264 @ 0x7ff5b3009e00] mb I  I16..4: 49.9%  0.0% 50.1%
 [libx264 @ 0x7ff5b3009e00] mb P  I16..4: 23.3%  0.0%  0.0%  P16..4: 49.3%
 0.0%  0.0%  0.0%  0.0%    skip:27.3%
 [libx264 @ 0x7ff5b3009e00] mb B  I16..4:  3.4%  0.0%  0.0%  B16..8: 19.2%
 0.0%  0.0%  direct: 7.1%  skip:70.3%  L0:35.8% L1:43.1% BI:21.2%
 [libx264 @ 0x7ff5b3009e00] final ratefactor: 23.53
 [libx264 @ 0x7ff5b3009e00] coded y,uvDC,uvAC intra: 45.2% 40.8% 10.6%
 inter: 9.6% 8.2% 0.3%
 [libx264 @ 0x7ff5b3009e00] i16 v,h,dc,p: 74% 13%  7%  6%
 [libx264 @ 0x7ff5b3009e00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 43% 27% 10%  3%
 3%  4%  3%  3%  5%
 [libx264 @ 0x7ff5b3009e00] i8c dc,h,v,p: 48% 16% 31%  6%
 [libx264 @ 0x7ff5b3009e00] Weighted P-Frames: Y:14.6% UV:3.6%
 [libx264 @ 0x7ff5b3009e00] kb/s:491.59
 [aac @ 0x7ff5b300b600] Qavg: 1142.250
 $ ffmpeg -i issue5493.mp4 -filter:v framerate=30,scale=640:360,fps=30 -b:v
 500k -pass 2 -y test.mp4
 ffmpeg version N-80335-gcb46b78 Copyright (c) 2000-2016 the FFmpeg
 developers
   built with Apple LLVM version 7.0.2 (clang-700.1.81)
   configuration: --enable-gpl --enable-nonfree --disable-ffserver
 --enable-shared --enable-openssl --enable-libspeex --enable-libopus
 --enable-libfdk-aac --enable-libx265 --enable-libx264 --enable-libxvid
 --enable-libfaac --enable-libmp3lame --enable-libtheora --enable-libvorbis
 --enable-libvpx --enable-libvidstab --extra-cflags=-I/sw/include --extra-
 libs=-L/sw/lib
   libavutil      55. 24.100 / 55. 24.100
   libavcodec     57. 46.100 / 57. 46.100
   libavformat    57. 38.100 / 57. 38.100
   libavdevice    57.  0.101 / 57.  0.101
   libavfilter     6. 46.101 /  6. 46.101
   libswscale      4.  1.100 /  4.  1.100
   libswresample   2.  1.100 /  2.  1.100
   libpostproc    54.  0.100 / 54.  0.100
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'issue5493.mp4':
   Metadata:
     major_brand     : mp42
     minor_version   : 0
     compatible_brands: isommp42
     creation_time   : 2016-04-24 09:48:33
     location        : +60.4916+022.2685/
     location-eng    : +60.4916+022.2685/
     com.android.version: 6.0.1
   Duration: 00:00:52.12, start: 0.000000, bitrate: 15880 kb/s
     Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
 1920x1080, 15715 kb/s, SAR 1:1 DAR 16:9, 25.48 fps, 90k tbr, 90k tbn, 180k
 tbc (default)
     Metadata:
       creation_time   : 2016-04-24 09:48:33
       handler_name    : VideoHandle
     Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz,
 stereo, fltp, 196 kb/s (default)
     Metadata:
       creation_time   : 2016-04-24 09:48:33
       handler_name    : SoundHandle
 [Parsed_framerate_0 @ 0x7fe6984253e0] time base:1/90000 -> 1/90000 exact:1
 [Parsed_framerate_0 @ 0x7fe6984253e0] fps -> fps:30/1 scene score:7.000000
 interpolate start:15 end:240
 [libx264 @ 0x7fe698810200] using SAR=1/1
 [libx264 @ 0x7fe698810200] using cpu capabilities: MMX2 SSE2Fast SSSE3
 SSE4.2 AVX
 [libx264 @ 0x7fe698810200] profile High, level 3.0
 [libx264 @ 0x7fe698810200] 264 - core 148 r2705 3f5ed56 - H.264/MPEG-4 AVC
 codec - Copyleft 2003-2016 - http://www.videolan.org/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 me_range=16 chroma_me=1 trellis=1 8x8dct=1
 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=11
 lookahead_threads=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=500
 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 @ 0x7fe69899b600] Using AVStream.codec to pass codec parameters to
 muxers is deprecated, use AVStream.codecpar instead.
     Last message repeated 1 times
 Output #0, mp4, to 'test.mp4':
   Metadata:
     major_brand     : mp42
     minor_version   : 0
     compatible_brands: isommp42
     com.android.version: 6.0.1
     location        : +60.4916+022.2685/
     location-eng    : +60.4916+022.2685/
     encoder         : Lavf57.38.100
     Stream #0:0(eng): Video: h264 (libx264) ([33][0][0][0] / 0x0021),
 yuv420p, 640x360 [SAR 1:1 DAR 16:9], q=-1--1, 500 kb/s, 30 fps, 15360 tbn,
 30 tbc (default)
     Metadata:
       creation_time   : 2016-04-24 09:48:33
       handler_name    : VideoHandle
       encoder         : Lavc57.46.100 libx264
     Side data:
       cpb: bitrate max/min/avg: 0/0/500000 buffer size: 0 vbv_delay: -1
     Stream #0:1(eng): Audio: aac (LC) ([64][0][0][0] / 0x0040), 48000 Hz,
 stereo, fltp, 128 kb/s (default)
     Metadata:
       creation_time   : 2016-04-24 09:48:33
       handler_name    : SoundHandle
       encoder         : Lavc57.46.100 aac
 Stream mapping:
   Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
   Stream #0:1 -> #0:1 (aac (native) -> aac (native))
 Press [q] to stop, [?] for help
 frame=   52 fps=0.0 q=31.0 size=     119kB time=00:00:02.45 bitrate=
 398.0kbits/s speed=4.91x
 frame=  112 fps=112 q=28.0 size=     266kB time=00:00:04.01 bitrate=
 542.8kbits/s speed=4.01x
 frame=  172 fps=115 q=30.0 size=     419kB time=00:00:06.02 bitrate=
 569.7kbits/s speed=4.01x
 frame=  229 fps=114 q=30.0 size=     539kB time=00:00:08.02 bitrate=
 550.4kbits/s speed=4.01x
 frame=  289 fps=115 q=30.0 size=     670kB time=00:00:10.03 bitrate=
 547.2kbits/s speed=4.01x
 frame=  349 fps=116 q=30.0 size=     842kB time=00:00:12.03 bitrate=
 572.7kbits/s speed=3.99x
 frame=  406 fps=115 q=30.0 size=    1035kB time=00:00:14.04 bitrate=
 603.9kbits/s speed=3.99x
 frame=  467 fps=116 q=30.0 size=    1166kB time=00:00:16.04 bitrate=
 595.3kbits/s speed=3.99x
 frame=  525 fps=116 q=30.0 size=    1328kB time=00:00:18.05 bitrate=
 602.5kbits/s speed=3.99x
 frame=  579 fps=115 q=30.0 size=    1515kB time=00:00:20.05 bitrate=
 618.7kbits/s speed=3.99x
 frame=  636 fps=115 q=30.0 size=    1704kB time=00:00:21.68 bitrate=
 643.8kbits/s speed=3.92x
 frame=  697 fps=116 q=30.0 size=    1850kB time=00:00:23.81 bitrate=
 636.5kbits/s speed=3.95x
 frame=  758 fps=116 q=30.0 size=    1987kB time=00:00:25.60 bitrate=
 635.8kbits/s speed=3.92x
 frame=  820 fps=117 q=30.0 size=    2132kB time=00:00:28.08 bitrate=
 622.1kbits/s speed=3.99x
 frame=  880 fps=117 q=30.0 size=    2279kB time=00:00:29.44 bitrate=
 634.0kbits/s speed=3.91x
 frame=  940 fps=117 q=30.0 size=    2471kB time=00:00:31.08 bitrate=
 651.2kbits/s speed=3.87x
 frame=  998 fps=117 q=30.0 size=    2622kB time=00:00:33.09 bitrate=
 649.1kbits/s speed=3.88x
 frame= 1060 fps=117 q=30.0 size=    2765kB time=00:00:35.09 bitrate=
 645.3kbits/s speed=3.88x
 frame= 1117 fps=117 q=30.0 size=    2915kB time=00:00:37.10 bitrate=
 643.5kbits/s speed=3.89x
 frame= 1172 fps=117 q=30.0 size=    3069kB time=00:00:39.10 bitrate=
 642.9kbits/s speed=3.89x
 frame= 1234 fps=117 q=30.0 size=    3203kB time=00:00:41.11 bitrate=
 638.1kbits/s speed=3.89x
 frame= 1296 fps=117 q=30.0 size=    3331kB time=00:00:43.12 bitrate=
 632.8kbits/s speed= 3.9x
 frame= 1357 fps=117 q=30.0 size=    3459kB time=00:00:45.12 bitrate=
 628.0kbits/s speed= 3.9x
 frame= 1416 fps=117 q=30.0 size=    3598kB time=00:00:47.13 bitrate=
 625.3kbits/s speed= 3.9x
 frame= 1478 fps=117 q=30.0 size=    3721kB time=00:00:49.13 bitrate=
 620.4kbits/s speed= 3.9x
 frame= 1538 fps=117 q=30.0 size=    3852kB time=00:00:51.14 bitrate=
 617.1kbits/s speed= 3.9x
 [libx264 @ 0x7fe698810200] 2nd pass has more frames than 1st pass (1559)
 [libx264 @ 0x7fe698810200] continuing anyway, at constant QP=27
 [libx264 @ 0x7fe698810200] disabling adaptive B-frames
 [libx264 @ 0x7fe698810200] specified frame type is not compatible with max
 B-frames
 $ x264 --version
 x264 0.148.2705 3f5ed56
 (libswscale 4.1.100)
 (libavformat 57.37.101)
 built on Jun 15 2016, gcc: 4.2.1 Compatible Apple LLVM 7.0.2
 (clang-700.1.81)
 x264 configuration: --bit-depth=8 --chroma-format=all
 libx264 configuration: --bit-depth=8 --chroma-format=all
 x264 license: GPL version 2 or later
 libswscale/libavformat license: nonfree and unredistributable
 WARNING: This binary is unredistributable!
 }}}

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Ticket URL: <https://trac.ffmpeg.org/ticket/5493#comment:8>
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