[FFmpeg-trac] #7822(undetermined:new): x264 possible encoding error with png source since N-93471-gf8fa8bbf22

FFmpeg trac at avcodec.org
Wed Apr 3 00:34:48 EEST 2019


#7822: x264 possible encoding error with png source since N-93471-gf8fa8bbf22
-------------------------------------+-------------------------------------
             Reporter:  JouMxyzptlk  |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:  x264         |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:

 Last working build:
 ffmpeg-20190325-6e42021-win64-static.zip

 Up to now everything from ffmpeg-20190328-f8fa8bb-win64-static.zip and
 later produces those errors.
 Mplayer Home Cinema shows the error. ffdshow shows the error as well.
 avidemux (latest build) does not show the decoding error, I can stream-
 copy, but the resulting video still shows that error.
 Tested with Ryzen 7 2700X on Windows 10 x64 1809 (latest updates) and on
 i7-4960X on Server 2019 with latest updates: Same result although quite
 different hardware.
 Other CPU load does not matter, I/O load does not matter as well.

 Reproduce:
 Get test input data from from: http://www.joumxyzptlk.de/tmp/ffmpeg
 /testdata-4k.7z

 For comparison: Correct result with
 ffmpeg-20190325-6e42021-win64-static.zip
 http://www.joumxyzptlk.de/tmp/ffmpeg/ffmpeg-h264-last-working-
 version-N-93139-ga9452fe6dc.mkv
 {{{
 C:\Users\Jou>C:\prog\ffmpeg\bin\ffmpeg.exe -framerate 25 -i "D:\tmp
 \testdata-4k\%06d.png" -vcodec libx264 -preset:v veryslow -tune:v
 Animation -crf 20 "D:\tmp\ffmpeg-h264-last-working-version.mkv"
 ffmpeg version N-93139-ga9452fe6dc Copyright (c) 2000-2019 the FFmpeg
 developers
   built with gcc 8.2.1 (GCC) 20190212
   configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-
 fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-
 libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame
 --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg
 --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr
 --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack
 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2
 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-
 libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa
 --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx
 --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-
 nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt
   libavutil      56. 26.100 / 56. 26.100
   libavcodec     58. 47.102 / 58. 47.102
   libavformat    58. 26.101 / 58. 26.101
   libavdevice    58.  6.101 / 58.  6.101
   libavfilter     7. 48.100 /  7. 48.100
   libswscale      5.  4.100 /  5.  4.100
   libswresample   3.  4.100 /  3.  4.100
   libpostproc    55.  4.100 / 55.  4.100
 Input #0, image2, from 'D:\tmp\testdata-4k\%06d.png':
   Duration: 00:00:03.96, start: 0.000000, bitrate: N/A
     Stream #0:0: Video: png, rgb24(pc), 3840x2160, 25 fps, 25 tbr, 25 tbn,
 25 tbc
 Stream mapping:
   Stream #0:0 -> #0:0 (png (native) -> h264 (libx264))
 Press [q] to stop, [?] for help
 [libx264 @ 000001b01b341440] using cpu capabilities: MMX2 SSE2Fast SSSE3
 SSE4.2 AVX FMA3 BMI2 AVX2
 [libx264 @ 000001b01b341440] profile High 4:4:4 Predictive, level 6.0,
 4:4:4, 8-bit
 [libx264 @ 000001b01b341440] 264 - core 157 r2935 545de2f - H.264/MPEG-4
 AVC codec - Copyleft 2003-2018 - http://www.videolan.org/x264.html -
 options: cabac=1 ref=16 deblock=1:1:1 analyse=0x1:0x131 me=umh subme=10
 psy=1 psy_rd=0.40:0.00 mixed_ref=1 me_range=24 chroma_me=1 trellis=2
 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=4 threads=24
 lookahead_threads=6 sliced_threads=0 nr=0 decimate=1 interlaced=0
 bluray_compat=0 constrained_intra=0 bframes=10 b_pyramid=2 b_adapt=2
 b_bias=0 direct=3 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25
 scenecut=40 intra_refresh=0 rc_lookahead=60 rc=crf mbtree=1 crf=20.0
 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:0.60
 Output #0, matroska, to 'D:\tmp\ffmpeg-h264-last-working-version.mkv':
   Metadata:
     encoder         : Lavf58.26.101
     Stream #0:0: Video: h264 (libx264) (H264 / 0x34363248), yuv444p,
 3840x2160, q=-1--1, 25 fps, 1k tbn, 25 tbc
     Metadata:
       encoder         : Lavc58.47.102 libx264
     Side data:
       cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
 frame=   99 fps=3.4 q=-1.0 Lsize=    1973kB time=00:00:03.84
 bitrate=4207.6kbits/s speed=0.133x
 video:1971kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 0.077132%
 [libx264 @ 000001b01b341440] frame I:2     Avg QP:11.80  size: 46632
 [libx264 @ 000001b01b341440] frame P:34    Avg QP:19.31  size: 42079
 [libx264 @ 000001b01b341440] frame B:63    Avg QP:18.53  size:  7841
 [libx264 @ 000001b01b341440] consecutive B-frames: 12.1% 16.2% 27.3%  8.1%
 10.1%  0.0%  7.1%  8.1%  0.0%  0.0% 11.1%
 [libx264 @ 000001b01b341440] mb I  I16..4: 93.8%  0.0%  6.2%
 [libx264 @ 000001b01b341440] mb P  I16..4: 40.0%  0.0%  3.9%  P16..4:
 8.6%  0.8%  0.5%  0.0%  0.0%    skip:46.1%
 [libx264 @ 000001b01b341440] mb B  I16..4:  3.4%  0.0%  0.2%  B16..8:
 10.9%  0.4%  0.1%  direct: 0.2%  skip:84.7%  L0:48.6% L1:48.2% BI: 3.2%
 [libx264 @ 000001b01b341440] direct mvs  spatial:69.8% temporal:30.2%
 [libx264 @ 000001b01b341440] coded y,u,v intra: 5.1% 1.5% 1.8% inter: 0.6%
 0.2% 0.2%
 [libx264 @ 000001b01b341440] i16 v,h,dc,p: 62% 16%  7% 15%
 [libx264 @ 000001b01b341440] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 23% 10% 34%
 7%  6%  6%  4%  6%  5%
 [libx264 @ 000001b01b341440] Weighted P-Frames: Y:17.6% UV:14.7%
 [libx264 @ 000001b01b341440] ref P L0: 60.4%  8.0% 20.2%  5.2%  3.1%  1.5%
 1.2%  0.3%  0.1%  0.1%  0.0%  0.0%  0.0%  0.0%  0.0%  0.0%
 [libx264 @ 000001b01b341440] ref B L0: 88.6%  7.9%  2.5%  0.7%  0.2%  0.1%
 0.0%  0.0%  0.0%  0.0%  0.0%  0.0%  0.0%  0.0%
 [libx264 @ 000001b01b341440] ref B L1: 98.4%  1.6%
 [libx264 @ 000001b01b341440] kb/s:4076.61
 }}}

 Wrong result with ffmpeg-20190328-f8fa8bb-win64-static.zip
 http://www.joumxyzptlk.de/tmp/ffmpeg/ffmpeg-h264-buggy-
 version-N-93471-gf8fa8bbf22.mkv
 {{{
 C:\Users\Jou>C:\prog\ffmpeg\bin\ffmpeg.exe -framerate 25 -i "D:\tmp
 \testdata-4k\%06d.png" -vcodec libx264 -preset:v veryslow -tune:v
 Animation -crf 20 "D:\tmp\ffmpeg-h264-buggy-version.mkv"
 ffmpeg version N-93471-gf8fa8bbf22 Copyright (c) 2000-2019 the FFmpeg
 developers
   built with gcc 8.2.1 (GCC) 20190212
   configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-
 fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-
 libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame
 --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg
 --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr
 --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack
 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2
 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-
 libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa
 --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx
 --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-
 nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt
   libavutil      56. 26.100 / 56. 26.100
   libavcodec     58. 47.105 / 58. 47.105
   libavformat    58. 26.101 / 58. 26.101
   libavdevice    58.  7.100 / 58.  7.100
   libavfilter     7. 48.100 /  7. 48.100
   libswscale      5.  4.100 /  5.  4.100
   libswresample   3.  4.100 /  3.  4.100
   libpostproc    55.  4.100 / 55.  4.100
 Input #0, image2, from 'D:\tmp\testdata-4k\%06d.png':
   Duration: 00:00:03.96, start: 0.000000, bitrate: N/A
     Stream #0:0: Video: png, rgb24(pc), 3840x2160, 25 fps, 25 tbr, 25 tbn,
 25 tbc
 Stream mapping:
   Stream #0:0 -> #0:0 (png (native) -> h264 (libx264))
 Press [q] to stop, [?] for help
 [libx264 @ 000001c8bc421280] using cpu capabilities: MMX2 SSE2Fast SSSE3
 SSE4.2 AVX FMA3 BMI2 AVX2
 [libx264 @ 000001c8bc421280] profile High 4:4:4 Predictive, level 6.0,
 4:4:4, 8-bit
 [libx264 @ 000001c8bc421280] 264 - core 157 r2969 d4099dd - H.264/MPEG-4
 AVC codec - Copyleft 2003-2019 - http://www.videolan.org/x264.html -
 options: cabac=1 ref=16 deblock=1:1:1 analyse=0x3:0x133 me=umh subme=10
 psy=1 psy_rd=0.40:0.00 mixed_ref=1 me_range=24 chroma_me=1 trellis=2
 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=4 threads=24
 lookahead_threads=6 sliced_threads=0 nr=0 decimate=1 interlaced=0
 bluray_compat=0 constrained_intra=0 bframes=10 b_pyramid=2 b_adapt=2
 b_bias=0 direct=3 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25
 scenecut=40 intra_refresh=0 rc_lookahead=60 rc=crf mbtree=1 crf=20.0
 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:0.60
 Output #0, matroska, to 'D:\tmp\ffmpeg-h264-buggy-version.mkv':
   Metadata:
     encoder         : Lavf58.26.101
     Stream #0:0: Video: h264 (libx264) (H264 / 0x34363248), yuv444p,
 3840x2160, q=-1--1, 25 fps, 1k tbn, 25 tbc
     Metadata:
       encoder         : Lavc58.47.105 libx264
     Side data:
       cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
 frame=   99 fps=3.2 q=-1.0 Lsize=    1934kB time=00:00:03.84
 bitrate=4125.4kbits/s speed=0.124x
 video:1933kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 0.078670%
 [libx264 @ 000001c8bc421280] frame I:2     Avg QP:14.10  size: 46211
 [libx264 @ 000001c8bc421280] frame P:34    Avg QP:21.03  size: 41315
 [libx264 @ 000001c8bc421280] frame B:63    Avg QP:19.11  size:  7640
 [libx264 @ 000001c8bc421280] consecutive B-frames: 12.1% 16.2% 27.3%  8.1%
 10.1%  0.0%  7.1%  8.1%  0.0%  0.0% 11.1%
 [libx264 @ 000001c8bc421280] mb I  I16..4: 18.5% 80.1%  1.4%
 [libx264 @ 000001c8bc421280] mb P  I16..4: 16.5% 25.9%  0.9%  P16..4:
 9.2%  0.8%  0.5%  0.0%  0.0%    skip:46.2%
 [libx264 @ 000001c8bc421280] mb B  I16..4:  1.7%  1.4%  0.0%  B16..8:
 10.8%  0.5%  0.1%  direct: 0.2%  skip:85.3%  L0:48.8% L1:47.4% BI: 3.8%
 [libx264 @ 000001c8bc421280] 8x8 transform intra:60.4% inter:87.9%
 [libx264 @ 000001c8bc421280] direct mvs  spatial:69.8% temporal:30.2%
 [libx264 @ 000001c8bc421280] coded y,u,v intra: 7.5% 3.4% 3.8% inter: 0.9%
 0.7% 0.7%
 [libx264 @ 000001c8bc421280] i16 v,h,dc,p: 43% 22%  8% 27%
 [libx264 @ 000001c8bc421280] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 37% 11% 37%
 3%  3%  3%  2%  2%  2%
 [libx264 @ 000001c8bc421280] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 31% 14% 15%
 6%  9%  8%  5%  6%  5%
 [libx264 @ 000001c8bc421280] Weighted P-Frames: Y:17.6% UV:14.7%
 [libx264 @ 000001c8bc421280] ref P L0: 61.8%  8.1% 19.0%  5.1%  2.8%  1.5%
 1.2%  0.3%  0.1%  0.1%  0.0%  0.0%  0.0%  0.0%  0.0%  0.0%
 [libx264 @ 000001c8bc421280] ref B L0: 88.4%  7.8%  2.5%  0.7%  0.3%  0.1%
 0.1%  0.0%  0.0%  0.0%  0.0%  0.0%  0.0%  0.0%
 [libx264 @ 000001c8bc421280] ref B L1: 98.4%  1.6%
 [libx264 @ 000001c8bc421280] kb/s:3996.87
 }}}

 Same error with "build of today" ffmpeg-20190402-6aeaac3-win64-static.zip
 http://www.joumxyzptlk.de/tmp/ffmpeg/ffmpeg-h264-buggy-
 version-2019-02-04-N-93515-g6aeaac3e1c.mkv
 {{{
 C:\Users\Jou>C:\prog\ffmpeg\bin\ffmpeg.exe -framerate 25 -i "D:\tmp
 \testdata-4k\%06d.png" -vcodec libx264 -preset:v veryslow -tune:v
 Animation -crf 20 "D:\tmp\ffmpeg-h264-last-working-version.mkv"
 ffmpeg version N-93139-ga9452fe6dc Copyright (c) 2000-2019 the FFmpeg
 developers
   built with gcc 8.2.1 (GCC) 20190212
   configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-
 fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-
 libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame
 --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg
 --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr
 --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack
 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2
 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-
 libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa
 --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx
 --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-
 nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt
   libavutil      56. 26.100 / 56. 26.100
   libavcodec     58. 47.102 / 58. 47.102
   libavformat    58. 26.101 / 58. 26.101
   libavdevice    58.  6.101 / 58.  6.101
   libavfilter     7. 48.100 /  7. 48.100
   libswscale      5.  4.100 /  5.  4.100
   libswresample   3.  4.100 /  3.  4.100
   libpostproc    55.  4.100 / 55.  4.100
 Input #0, image2, from 'D:\tmp\testdata-4k\%06d.png':
   Duration: 00:00:03.96, start: 0.000000, bitrate: N/A
     Stream #0:0: Video: png, rgb24(pc), 3840x2160, 25 fps, 25 tbr, 25 tbn,
 25 tbc
 Stream mapping:
   Stream #0:0 -> #0:0 (png (native) -> h264 (libx264))
 Press [q] to stop, [?] for help
 [libx264 @ 000001b01b341440] using cpu capabilities: MMX2 SSE2Fast SSSE3
 SSE4.2 AVX FMA3 BMI2 AVX2
 [libx264 @ 000001b01b341440] profile High 4:4:4 Predictive, level 6.0,
 4:4:4, 8-bit
 [libx264 @ 000001b01b341440] 264 - core 157 r2935 545de2f - H.264/MPEG-4
 AVC codec - Copyleft 2003-2018 - http://www.videolan.org/x264.html -
 options: cabac=1 ref=16 deblock=1:1:1 analyse=0x1:0x131 me=umh subme=10
 psy=1 psy_rd=0.40:0.00 mixed_ref=1 me_range=24 chroma_me=1 trellis=2
 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=4 threads=24
 lookahead_threads=6 sliced_threads=0 nr=0 decimate=1 interlaced=0
 bluray_compat=0 constrained_intra=0 bframes=10 b_pyramid=2 b_adapt=2
 b_bias=0 direct=3 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25
 scenecut=40 intra_refresh=0 rc_lookahead=60 rc=crf mbtree=1 crf=20.0
 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:0.60
 Output #0, matroska, to 'D:\tmp\ffmpeg-h264-last-working-version.mkv':
   Metadata:
     encoder         : Lavf58.26.101
     Stream #0:0: Video: h264 (libx264) (H264 / 0x34363248), yuv444p,
 3840x2160, q=-1--1, 25 fps, 1k tbn, 25 tbc
     Metadata:
       encoder         : Lavc58.47.102 libx264
     Side data:
       cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
 frame=   99 fps=3.4 q=-1.0 Lsize=    1973kB time=00:00:03.84
 bitrate=4207.6kbits/s speed=0.133x
 video:1971kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 0.077132%
 [libx264 @ 000001b01b341440] frame I:2     Avg QP:11.80  size: 46632
 [libx264 @ 000001b01b341440] frame P:34    Avg QP:19.31  size: 42079
 [libx264 @ 000001b01b341440] frame B:63    Avg QP:18.53  size:  7841
 [libx264 @ 000001b01b341440] consecutive B-frames: 12.1% 16.2% 27.3%  8.1%
 10.1%  0.0%  7.1%  8.1%  0.0%  0.0% 11.1%
 [libx264 @ 000001b01b341440] mb I  I16..4: 93.8%  0.0%  6.2%
 [libx264 @ 000001b01b341440] mb P  I16..4: 40.0%  0.0%  3.9%  P16..4:
 8.6%  0.8%  0.5%  0.0%  0.0%    skip:46.1%
 [libx264 @ 000001b01b341440] mb B  I16..4:  3.4%  0.0%  0.2%  B16..8:
 10.9%  0.4%  0.1%  direct: 0.2%  skip:84.7%  L0:48.6% L1:48.2% BI: 3.2%
 [libx264 @ 000001b01b341440] direct mvs  spatial:69.8% temporal:30.2%
 [libx264 @ 000001b01b341440] coded y,u,v intra: 5.1% 1.5% 1.8% inter: 0.6%
 0.2% 0.2%
 [libx264 @ 000001b01b341440] i16 v,h,dc,p: 62% 16%  7% 15%
 [libx264 @ 000001b01b341440] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 23% 10% 34%
 7%  6%  6%  4%  6%  5%
 [libx264 @ 000001b01b341440] Weighted P-Frames: Y:17.6% UV:14.7%
 [libx264 @ 000001b01b341440] ref P L0: 60.4%  8.0% 20.2%  5.2%  3.1%  1.5%
 1.2%  0.3%  0.1%  0.1%  0.0%  0.0%  0.0%  0.0%  0.0%  0.0%
 [libx264 @ 000001b01b341440] ref B L0: 88.6%  7.9%  2.5%  0.7%  0.2%  0.1%
 0.0%  0.0%  0.0%  0.0%  0.0%  0.0%  0.0%  0.0%
 [libx264 @ 000001b01b341440] ref B L1: 98.4%  1.6%
 [libx264 @ 000001b01b341440] kb/s:4076.61
 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/7822>
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