[FFmpeg-trac] #7545(avcodec:new): videotoolbox fails to decode certain h264 videos

[FFmpeg]

#7545: videotoolbox fails to decode certain h264 videos
-------------------------------------+-------------------------------------
             Reporter:  der_richter  |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:  avcodec      |                  Version:  git-
             Keywords:               |  master
  videotoolbox                       |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 some h264 videos fail with videotoolbox on certain hardware. the error
 code returned by
 [https://github.com/FFmpeg/FFmpeg/blob/e96742dd3bdfa36c8c80cc0c7a63af1425386c49/libavcodec/videotoolbox.c#L833
 VTDecompressionSessionCreate] is -12913
 (kVTVideoDecoderNotAvailableNowErr). it works on my Mid2010 MacBook Pro
 but not on my Hackintosh with an i7-6700k. this was first reported in the
 mpv issue tracker [https://github.com/mpv-player/mpv/issues/5741 here].
 also tested the same file with VLC on my hackintosh and there the hw
 accelerated decoding works.

 a sample file can be found [https://0x0.st/sSKl.mp4 here].

 How to reproduce:
 {{{
 akemi$ ffmpeg -hwaccel videotoolbox -i
 /Volumes/AkemiData/Downloads/sSKl.mp4 -f null -
 ffmpeg version git-2018-11-12-ae4323548a Copyright (c) 2000-2018 the
 FFmpeg developers
   built with Apple LLVM version 10.0.0 (clang-1000.11.45.5)
   configuration: --prefix=/usr/local/Cellar/ffmpeg/HEAD-ae43235 --enable-
 shared --enable-pthreads --enable-gpl --enable-version3 --enable-nonfree
 --enable-hardcoded-tables --enable-avresample --cc=/usr/bin/clang --host-
 cflags='-Os -w -pipe -march=native -mmacosx-version-min=10.14 -isysroot
 /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.sdk
 -I/System/Library/Frameworks/JavaVM.framework/Versions/Current/Headers/'
 --host-ldflags='-L/usr/local/opt/openssl/lib -L/usr/local/opt/libxml2/lib
 -L/usr/local/lib -F/usr/local/Frameworks -Wl,-headerpad_max_install_names
 -isysroot
 /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.sdk'
 --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-libfdk-aac
 --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-
 libgme --enable-libass --enable-libbluray --enable-libbs2b --enable-
 libcaca --enable-libgsm --enable-librsvg --enable-libsoxr --enable-
 libvidstab --enable-libvorbis --enable-libvpx --enable-libxml2 --enable-
 libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg
 --disable-decoder=jpeg2000 --extra-
 cflags=-I/usr/local/Cellar/openjpeg/2.3.0/include/openjpeg-2.3 --enable-
 openssl --enable-libopus --enable-librtmp --enable-librubberband --enable-
 ffplay --enable-libsnappy --enable-libspeex --enable-libtesseract
 --enable-libtheora --enable-libwavpack --enable-libwebp --enable-libx265
 --enable-lzma --enable-libzmq --enable-libzimg --enable-videotoolbox
 --enable-opencl
   libavutil      56. 23.101 / 56. 23.101
   libavcodec     58. 39.100 / 58. 39.100
   libavformat    58. 22.100 / 58. 22.100
   libavdevice    58.  6.100 / 58.  6.100
   libavfilter     7. 43.100 /  7. 43.100
   libavresample   4.  0.  0 /  4.  0.  0
   libswscale      5.  4.100 /  5.  4.100
   libswresample   3.  4.100 /  3.  4.100
   libpostproc    55.  4.100 / 55.  4.100
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from
 '/Volumes/AkemiData/Downloads/sSKl.mp4':
   Metadata:
     major_brand     : isom
     minor_version   : 512
     compatible_brands: isomiso2avc1mp41
     encoder         : Lavf57.71.100
   Duration: 00:00:16.72, start: 0.013000, bitrate: 3455 kb/s
     Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
 1920x1080 [SAR 1:1 DAR 16:9], 3258 kb/s, 29.97 fps, 29.97 tbr, 29971 tbn,
 59.94 tbc (default)
     Metadata:
       handler_name    : VideoHandler
     Stream #0:1(unk): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz,
 stereo, fltp, 188 kb/s (default)
     Metadata:
       handler_name    : SoundHandler
 Stream mapping:
   Stream #0:0 -> #0:0 (h264 (native) -> wrapped_avframe (native))
   Stream #0:1 -> #0:1 (aac (native) -> pcm_s16le (native))
 Press [q] to stop, [?] for help

 Error creating Videotoolbox decoder.
 videotoolbox hwaccel requested for input stream #0:0, but cannot be
 initialized.
 [h264 @ 0x7fb24b001200] decode_slice_header error
 [h264 @ 0x7fb24b001200] no frame!

 ...

 Error creating Videotoolbox decoder.
 videotoolbox hwaccel requested for input stream #0:0, but cannot be
 initialized.
 [h264 @ 0x7fb24883ae00] decode_slice_header error
 [h264 @ 0x7fb24883ae00] no frame!
 Error while decoding stream #0:0: Invalid data found when processing input

 Error creating Videotoolbox decoder.
 videotoolbox hwaccel requested for input stream #0:0, but cannot be
 initialized.
 [h264 @ 0x7fb24b001200] decode_slice_header error
 [h264 @ 0x7fb24b001200] no frame!
 Error while decoding stream #0:0: Invalid data found when processing input

 Too many packets buffered for output stream 0:1.

 Error creating Videotoolbox decoder.
 videotoolbox hwaccel requested for input stream #0:0, but cannot be
 initialized.
 [h264 @ 0x7fb248822600] decode_slice_header error
 [h264 @ 0x7fb248822600] no frame!
 Conversion failed!
 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/7545>
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