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• I could not encode using the Intel® Media Server Studio on the ZOTAC ZBOX PI225

  22 avril 2018, par Ubunkun

  I’ve succeeded to install the Intel® Media Server Studio to the
  ZOTAC ZBOX PI225. And, I’ve built the ffmepg as following.

  $ ffmpeg -codecs | grep qsv
  
  ffmpeg version N-90764-g396c019 Copyright (c) 2000-2018 the FFmpeg developers
  
    built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-16)
  
    configuration: --enable-libmfx
  
    libavutil      56. 15.100 / 56. 15.100
  
    libavcodec     58. 19.100 / 58. 19.100
  
    libavformat    58. 13.100 / 58. 13.100
  
    libavdevice    58.  4.100 / 58.  4.100
  
    libavfilter     7. 18.100 /  7. 18.100
  
    libswscale      5.  2.100 /  5.  2.100
  
    libswresample   3.  2.100 /  3.  2.100
  
   DEV.LS h264                 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 (decoders: h264 h264_qsv ) (encoders: h264_qsv h264_vaapi )
  
   DEV.L. hevc                 H.265 / HEVC (High Efficiency Video Coding) (decoders: hevc hevc_qsv ) (encoders: hevc_qsv hevc_vaapi )
  
   DEVIL. mjpeg                Motion JPEG (encoders: mjpeg mjpeg_qsv mjpeg_vaapi )
  
   DEV.L. mpeg2video           MPEG-2 video (decoders: mpeg2video mpegvideo mpeg2_qsv ) (encoders: mpeg2video mpeg2_qsv mpeg2_vaapi )
  
   D.V.L. vc1                  SMPTE VC-1 (decoders: vc1 vc1_qsv )
  
   DEV.L. vp8                  On2 VP8 (decoders: vp8 vp8_qsv ) (encoders: vp8_vaapi )

  When I’ve tried to encode using ffmpeg, but It occurred error as below.

   $ ffmpeg -i original.avi -c:v h264_qsv -profile:v main -b:v 2000k -r 30 -s 1280x720  -look_ahead 0 qsv.mp4
  
  ffmpeg version N-90764-g396c019 Copyright (c) 2000-2018 the FFmpeg developers
  
    built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-16)
  
    configuration: --enable-libmfx
  
    libavutil      56. 15.100 / 56. 15.100
  
    libavcodec     58. 19.100 / 58. 19.100
  
    libavformat    58. 13.100 / 58. 13.100
  
    libavdevice    58.  4.100 / 58.  4.100
  
    libavfilter     7. 18.100 /  7. 18.100
  
    libswscale      5.  2.100 /  5.  2.100
  
    libswresample   3.  2.100 /  3.  2.100
  
  Input #0, avi, from 'original.avi':
  
    Metadata:
  
      encoder         : FairUse Wizard - http://fairusewizard.com
  
    Duration: 01:41:12.11, start: 0.000000, bitrate: 965 kb/s
  
      Stream #0:0: Video: mpeg4 (Advanced Simple Profile) (XVID / 0x44495658), yuv420p, 592x304 [SAR 1:1 DAR 37:19], 828 kb/s, 23.98 fps, 23.98 tbr, 23.98 tbn, 23.98 tbc
  
      Stream #0:1: Audio: mp3 (U[0][0][0] / 0x0055), 48000 Hz, stereo, fltp, 128 kb/s
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (mpeg4 (native) -> h264 (h264_qsv))
  
    Stream #0:1 -> #0:1 (mp3 (mp3float) -> aac (native))
  
  Press [q] to stop, [?] for help
  
  [mpeg4 @ 0x2fe5700] Video uses a non-standard and wasteful way to store B-frames ('packed B-frames'). Consider using the mpeg4_unpack_bframes bitstream filter without encoding but stream copy to fix it.
  
  [h264_qsv @ 0x2fce7c0] Encoder will work with partial HW acceleration
  
  [h264_qsv @ 0x2fce7c0] Error initializing the encoder: invalid video parameters (-15)
  
  Error initializing output stream 0:0 -- Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height
  
  [aac @ 0x2ff0e00] Qavg: 14764.986
  
  [aac @ 0x2ff0e00] 2 frames left in the queue on closing
  
  Conversion failed!

  It seems like that something of parameter missing, I think.

  If you have an idea to solve this, let me know.

  Bests,

• How to recover corrupted MTS/AVCHD file ?

  5 février 2018, par Dmitry

  Several MTS files were copied from flashcard to PC. All files larger then 500 were damaged and can not be open using VLC or ffmpeg. For example 00011.MTS :

  $ ffmpeg -i 00011.MTS
  
  ffmpeg version 3.4.1 Copyright (c) 2000-2017 the FFmpeg developers
  
    built with Apple LLVM version 9.0.0 (clang-900.0.39.2)
  
    configuration: --prefix=/usr/local/Cellar/ffmpeg/3.4.1 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-gpl --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --enable-videotoolbox --disable-lzma
  
  libavutil      55. 78.100 / 55. 78.100
  
  libavcodec     57.107.100 / 57.107.100
  
  libavformat    57. 83.100 / 57. 83.100
  
  libavdevice    57. 10.100 / 57. 10.100
  
  libavfilter     6.107.100 /  6.107.100
  
  libavresample   3.  7.  0 /  3.  7.  0
  
  libswscale      4.  8.100 /  4.  8.100
  
  libswresample   2.  9.100 /  2.  9.100
  
  libpostproc    54.  7.100 / 54.  7.100
  
  00011.MTS: Invalid data found when processing input

  Smaller files works fine and can be opened using VLC or ffmpeg :

  $ ffmpeg -i 00012.MTS
  
  ffmpeg version 3.4.1 Copyright (c) 2000-2017 the FFmpeg developers
  
  built with Apple LLVM version 9.0.0 (clang-900.0.39.2)
  
  configuration: --prefix=/usr/local/Cellar/ffmpeg/3.4.1 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-gpl --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --enable-videotoolbox --disable-lzma
  
  libavutil      55. 78.100 / 55. 78.100
  
  libavcodec     57.107.100 / 57.107.100
  
  libavformat    57. 83.100 / 57. 83.100
  
  libavdevice    57. 10.100 / 57. 10.100
  
  libavfilter     6.107.100 /  6.107.100
  
  libavresample   3.  7.  0 /  3.  7.  0
  
  libswscale      4.  8.100 /  4.  8.100
  
  libswresample   2.  9.100 /  2.  9.100
  
  libpostproc    54.  7.100 / 54.  7.100
  
  Input #0, mpegts, from '00012.MTS':
  
  Duration: 00:00:30.16, start: 1.040000, bitrate: 23790 kb/s
  
  Program 1
  
      Stream #0:0[0x1011]: Video: h264 (High) (HDMV / 0x564D4448), yuv420p(top first), 1920x1080 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc
  
      Stream #0:1[0x1100]: Audio: pcm_bluray (HDMV / 0x564D4448), 48000 Hz, stereo, s16, 1536 kb/s
  
      Stream #0:2[0x1200]: Subtitle: hdmv_pgs_subtitle ([144][0][0][0] / 0x0090), 1920x1080
  
  At least one output file must be specified

  The size of the corrupted file looks ok (617594880). However if I compare corrupted 00011.MTS with good 00012.MTS using binary diff I see that the header differs too much :
  vbindiff 00011.MTS 00012.MTS

  There are not so much difference between good 00012.MTS and another good file 00013.MTS :
  vbindiff 00013.MTS 00012.MTS

  Questions :

  How to check which data is inside corrupted 00011.MTS and can audio or video data be recovered ?

  Are there any tools around that can recover video or audio steams (or parts of them) ?

• Revision c4826c5941 : Adaptive motion search control This commit enables adaptive constraint on motio

  12 septembre 2013, par Jingning Han

  Changed Paths :
   Modify /vp9/encoder/vp9_block.h

  
   Modify /vp9/encoder/vp9_encodeframe.c

  
   Modify /vp9/encoder/vp9_onyx_if.c

  
   Modify /vp9/encoder/vp9_onyx_int.h

  
   Modify /vp9/encoder/vp9_rdopt.c

  
  
  Adaptive motion search control

  This commit enables adaptive constraint on motion search range for
  smaller partitions, given the motion vectors of collocated larger
  partition as a candidate initial search point.

  It makes speed 0 runtime of bus at CIF and 2000 kbps goes from
  167s down to 162s (3% speed-up), at 0.01dB performance gains. In
  the settings of speed 1, this makes the runtime goes from 33687 ms
  to 32142 ms (4.5% speed-up), at 0.03dB performance gains.

  Compression performance wise, it gains at speed 1 :
  derf 0.118%
  yt 0.237%
  hd 0.203%
  stdhd 0.438%

  Change-Id : Ic8b34c67810d9504a9579bef2825d3fa54b69454