[FFmpeg-trac] #6913(undetermined:new): 24h test pattern encode results in corrupted output and fails to play correctly in ffplay

FFmpeg trac at avcodec.org
Fri Dec 15 09:23:31 EET 2017


#6913: 24h test pattern encode results in corrupted output and fails to play
correctly in ffplay
-------------------------------------+-------------------------------------
             Reporter:  fiuqwb       |                    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 fiuqwb):

 With no audio, with 256x144 resolution and standalone x264: issue does NOT
 reproduce.

 I used the same input (as rawvideo piped from FFmpeg).

 {{{
 ffmpeg -f lavfi -i "testsrc2=r=30:s=256x144" -t 86400 -f rawvideo
 -pixel_format yuv420p pipe:1   | x264 --output by_x264.mp4 --input-res
 256x144 --crf 23 --tune animation --profile high --fps 30 -
 ffmpeg version N-89467-g0e5260226a Copyright (c) 2000-2017 the FFmpeg
 developers
   built with gcc 7.2.0 (GCC)
   configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-
 bzlib --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass
 --enable-libbluray --enable-libfreetype --enable-libmp3lame --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-amf --enable-cuda
 --enable-cuvid --enable-d3d11va --enable-nvenc --enable-dxva2 --enable-
 avisynth --enable-libmfx
   libavutil      56.  5.100 / 56.  5.100
   libavcodec     58.  6.103 / 58.  6.103
   libavformat    58.  3.100 / 58.  3.100
   libavdevice    58.  0.100 / 58.  0.100
   libavfilter     7.  7.100 /  7.  7.100
   libswscale      5.  0.101 /  5.  0.101
   libswresample   3.  0.101 /  3.  0.101
   libpostproc    55.  0.100 / 55.  0.100
 Input #0, lavfi, from 'testsrc2=r=30:s=256x144':
   Duration: N/A, start: 0.000000, bitrate: N/A
     Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 256x144
 [SAR 1:1 DAR 16:9], 30 tbr, 30 tbn, 30 tbc
 Stream mapping:
   Stream #0:0 -> #0:0 (rawvideo (native) -> rawvideo (native))
 Press [q] to stop, [?] for help
 Output #0, rawvideo, to 'pipe:1':
   Metadata:
     encoder         : Lavf58.3.100
     Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 256x144
 [SAR 1:1 DAR 16:9], q=2-31, 13271 kb/s, 30 fps, 30 tbn, 30 tbc
     Metadata:
       encoder         : Lavc58.6.103 rawvideo
 raw [info]: 256x144p 0:0 @ 30/1 fps (cfr)
 x264 [info]: using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3
 BMI2 AVX2
 x264 [info]: profile High, level 1.2
 frame=2592000 fps=1280 q=-0.0 Lsize=139968000kB time=24:00:00.00
 bitrate=13271.0kbits/s speed=42.7x
 video:139968000kB audio:0kB subtitle:0kB other streams:0kB global
 headers:0kB muxing overhead: 0.000000%
 x264 [info]: frame I:10368 Avg QP:19.14  size:  5099
 x264 [info]: frame P:667317 Avg QP:26.03  size:  1486
 x264 [info]: frame B:1914315 Avg QP:31.24  size:   736
 x264 [info]: consecutive B-frames:  1.4% 13.4%  7.7% 24.3% 15.8% 37.3%
 x264 [info]: mb I  I16..4: 36.5% 16.6% 46.9%
 x264 [info]: mb P  I16..4:  2.6%  3.7%  1.3%  P16..4: 18.8% 13.6% 10.3%
 0.0%  0.0%    skip:49.7%
 x264 [info]: mb B  I16..4:  0.2%  0.2%  0.1%  B16..8: 23.2%  9.6%  2.9%
 direct: 2.8%  skip:61.1%  L0:47.9% L1:44.5% BI: 7.6%
 x264 [info]: 8x8 transform intra:43.3% inter:28.4%
 x264 [info]: coded y,uvDC,uvAC intra: 16.1% 34.7% 30.0% inter: 7.4% 18.9%
 15.3%
 x264 [info]: i16 v,h,dc,p: 72% 22%  6%  0%
 x264 [info]: i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 13% 11% 75%  1%  0%  0%  0%
 0%  0%
 x264 [info]: i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 42% 25% 24%  2%  1%  1%  2%
 2%  2%
 x264 [info]: i8c dc,h,v,p: 42% 19% 38%  1%
 x264 [info]: Weighted P-Frames: Y:0.0% UV:0.0%
 x264 [info]: ref P L0: 53.1%  7.7% 16.2%  8.1%  6.8%  7.9%  0.3%
 x264 [info]: ref B L0: 74.3% 13.5%  7.8%  3.2%  1.2%
 x264 [info]: ref B L1: 94.7%  5.3%
 x264 [info]: kb/s:227.27

 encoded 2592000 frames, 1280.30 fps, 227.27 kb/s


 x264 --version
 x264 0.152.2851 ba24899
 (libswscale 4.7.101)
 (libavformat 57.75.100)
 (ffmpegsource 2.23.0.0)
 built by Komisar on Jul  2 2017, gcc: 4.9.2 (multilib.generic.Komisar)
 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/ffmpegsource license: GPL version 2 or later

 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/6913#comment:6>
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