arg-i,sp.mp4,-vcodec,libvpx-vp9,-an,-vf,scale=848x480,-keyint_min,150,-g,150,-speed,6,-tile-columns,4,-frame-parallel,1,-threads,8,-use_wallclock_as_timestamps,1,-b:v,400k,-crf,23,-map,0:v,-header,tmp/480.hdr,-f,webm_chunk,tmp/480_%d.webm,-vcodec,libvpx-vp9,-an,-vf,scale=432x240,-keyint_min,150,-g,150,-speed,6,-tile-columns,4,-frame-parallel,1,-threads,8,-use_wallclock_as_timestamps,1,-b:v,200k,-crf,23,-map,0:v,-header,tmp/240.hdr,-f,webm_chunk,tmp/240_%d.webm,-acodec,libvorbis,-ac,1,-vn,-ab,64k,-map,0:a,-keyint_min,150,-g,150,-use_wallclock_as_timestamps,1,-f,webm_chunk,-header,tmp/a64.hdr,tmp/a64_%d.webm,-acodec,libvorbis,-ac,1,-vn,-ab,32k,-map,0:a,-keyint_min,150,-g,150,-use_wallclock_as_timestamps,1,-f,webm_chunk,-header,tmp/a32.hdr,tmp/a32_%d.webm
Spawning ffmpeg -i sp.mp4 -vcodec libvpx-vp9 -an -vf scale=848x480 -keyint_min 150 -g 150 -speed 6 -tile-columns 4 -frame-parallel 1 -threads 8 -use_wallclock_as_timestamps 1 -b:v 400k -crf 23 -map 0:v -header tmp/480.hdr -f webm_chunk tmp/480_%d.webm -vcodec libvpx-vp9 -an -vf scale=432x240 -keyint_min 150 -g 150 -speed 6 -tile-columns 4 -frame-parallel 1 -threads 8 -use_wallclock_as_timestamps 1 -b:v 200k -crf 23 -map 0:v -header tmp/240.hdr -f webm_chunk tmp/240_%d.webm -acodec libvorbis -ac 1 -vn -ab 64k -map 0:a -keyint_min 150 -g 150 -use_wallclock_as_timestamps 1 -f webm_chunk -header tmp/a64.hdr tmp/a64_%d.webm -acodec libvorbis -ac 1 -vn -ab 32k -map 0:a -keyint_min 150 -g 150 -use_wallclock_as_timestamps 1 -f webm_chunk -header tmp/a32.hdr tmp/a32_%d.webm
grep stderr: ffmpeg version N-87353-g183fd30 Copyright (c) 2000-2017 the FFmpeg developers
  built with gcc 7.2.0 (GCC)

grep stderr:   configuration: --enable-gpl --enable-version3 --enable-cuda --enable-cuvid --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib
  libavutil      55. 76.100 / 55. 76.100
  libavcodec     57.106.101 / 57.106.101
  libavformat    57. 82.101 / 57. 82.101
  libavdevice    57.  8.101 / 57.  8.101
  libavfilter     6.105.100 /  6.105.100
  libswscale      4.  7.103 /  4.  7.103
  libswresample   2.  8.100 /  2.  8.100
  libpostproc    54.  6.100 / 54.  6.100

grep stderr: Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'sp.mp4':
  Metadata:
    major_brand     : isom
    minor_version   :
grep stderr: 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf57.25.100
  Duration: 00:00:20.02, start: 0.000000, bitrate: 1621 kb/s
    Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 1487 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default)
    Metadata:
      handler_name    : VideoHandler
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, 5.1, fltp, 128 kb/s (default)
    Metadata:
      handler_name    : SoundHandler

grep stderr: Codec AVOption keyint_min (minimum interval between IDR-frames) specified for output file #2 (tmp/a64_%d.webm) has not been used for any stream. The most likely reason is either wrong type (e.g. a video option with no video streams) or that it is a private option of some encoder which was not actually used for any stream.

grep stderr: Codec AVOption g (set the group of picture (GOP) size) specified for output file #2 (tmp/a64_%d.webm) has not been used for any stream. The most likely reason is either wrong type (e.g. a video option with no video streams) or that it is a private option of some encoder which was not actually used for any stream.

grep stderr: Codec AVOption keyint_min (minimum interval between IDR-frames) specified for output file #3 (tmp/a32_%d.webm) has not been used for any stream. The most likely reason is either wrong type (e.g. a video option with no video streams) or that it is a private option of some encoder which was not actually used for any stream.

grep stderr: Codec AVOption g (set the group of picture (GOP) size) specified for output file #3 (tmp/a32_%d.webm) has not been used for any stream. The most likely reason is either wrong type (e.g. a video option with no video streams) or that it is a private option of some encoder which was not actually used for any stream.

grep stderr: Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> vp9 (libvpx-vp9))

grep stderr:   Stream #0:0 -> #1:0 (h264 (native) -> vp9 (libvpx-vp9))
  Stream #0:1 -> #2:0 (aac (native) -> vorbis (libvorbis))
  Stream #0:1 -> #3:0 (aac (native) -> vorbis (libvorbis))
Press [q] to stop, [?] for help

grep stderr: [webm_chunk @ 0000000002bd7f60] Opening 'tmp/a64.hdr' for writing

grep stderr: Output #2, webm_chunk, to 'tmp/a64_%d.webm':
  Metadata:
    major_brand     : isom
    minor_version   :
grep stderr: 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf57.82.101
    Stream #2:0(und): Audio: vorbis (libvorbis), 48000 Hz, mono, fltp, 64 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
      encoder         : Lavc57.106.101 libvorbis

grep stderr: [webm_chunk @ 0000000002574cc0] Opening 'tmp/a32.hdr' for writing

grep stderr: Output #3, webm_chunk, to 'tmp/a32_%d.webm':
  Metadata:
    major_brand     : isom
    minor_version   : 512

grep stderr:     compatible_brands: isomiso2avc1mp41
    encoder         : Lavf57.82.101
    Stream #3:0(und): Audio: vorbis (libvorbis), 48000 Hz, mono, fltp, 32 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
      encoder         : Lavc57.106.101 libvorbis

grep stderr: [libvpx-vp9 @ 0000000002bd4640] v1.6.1

grep stderr: [webm_chunk @ 0000000002594440] Opening 'tmp/480.hdr' for writing

grep stderr: Output #0, webm_chunk, to 'tmp/480_%d.webm':
  Metadata:
    major_brand     : isom

grep stderr:     minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf57.82.101
    Stream #0:0(eng): Video: vp9 (libvpx-vp9), yuv420p, 848x480 [SAR 160:159 DAR 16:9], q=-1--1, 400 kb/s, 23.98 fps, 1k tbn, 23.98 tbc (default)
    Metadata:
      handler_name    : VideoHandler
      encoder         : Lavc57.106.101 libvpx-vp9
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1

grep stderr: [libvpx-vp9 @ 0000000002bd73e0] v1.6.1

grep stderr: [webm_chunk @ 0000000002bd5e00] Opening 'tmp/240.hdr' for writing

grep stderr: Output #1, webm_chunk, to 'tmp/240_%d.webm':
  Metadata:
    major_brand     : isom
    minor_version   : 512
grep stderr:
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf57.82.101
    Stream #1:0(eng): Video: vp9 (libvpx-vp9), yuv420p, 432x240 [SAR 80:81 DAR 16:9], q=-1--1, 200 kb/s, 23.98 fps, 1k tbn, 23.98 tbc (default)
    Metadata:
      handler_name    : VideoHandler
      encoder         : Lavc57.106.101 libvpx-vp9
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1

grep stderr: frame=   26 fps=0.0 q=0.0 q=0.0 size=N/A time=00:00:01.16 bitrate=N/A speed=2.21x
grep stderr: frame=   43 fps= 40 q=0.0 q=0.0 size=N/A time=00:00:01.86 bitrate=N/A speed=1.76x
grep stderr: frame=   61 fps= 39 q=0.0 q=0.0 size=N/A time=00:00:02.63 bitrate=N/A speed=1.67x
grep stderr: frame=   89 fps= 43 q=0.0 q=0.0 size=N/A time=00:00:03.78 bitrate=N/A speed=1.82x
grep stderr: [webm_chunk @ 0000000002bd7f60] Opening 'tmp/a64_0.webm' for writing

grep stderr: frame=  118 fps= 34 q=0.0 q=0.0 size=N/A time=00:00:05.03 bitrate=N/A speed=1.45x
grep stderr: [webm_chunk @ 0000000002574cc0]
grep stderr: Opening 'tmp/a32_0.webm' for writing
grep stderr:

grep stderr: frame=  134 fps= 34 q=0.0 q=0.0 size=N/A time=00:00:05.66 bitrate=N/A speed=1.42x
grep stderr: frame=  145 fps= 32 q=0.0 q=0.0 size=N/A time=00:00:06.13 bitrate=N/A speed=1.34x
grep stderr: frame=  159 fps= 31 q=0.0 q=0.0 size=N/A time=00:00:06.70 bitrate=N/A speed=1.31x
grep stderr: frame=  173 fps= 31 q=0.0 q=0.0 size=N/A time=00:00:07.29 bitrate=N/A speed= 1.3x
grep stderr: [webm_chunk @ 0000000002594440] Opening 'tmp/480_0.webm' for writing

grep stderr: [webm_chunk @ 0000000002bd5e00] Opening 'tmp/240_0.webm' for writing

grep stderr: frame=  189 fps= 31 q=0.0 q=0.0 size=N/A time=00:00:07.97 bitrate=N/A speed= 1.3x
grep stderr: frame=  205 fps= 30 q=0.0 q=0.0 size=N/A time=00:00:08.64 bitrate=N/A speed=1.28x
grep stderr: frame=  220 fps= 30 q=0.0 q=0.0 size=N/A time=00:00:09.25 bitrate=N/A speed=1.28x
grep stderr: frame=  233 fps= 30 q=0.0 q=0.0 size=N/A time=00:00:09.81 bitrate=N/A speed=1.26x
grep stderr: [webm_chunk @ 0000000002bd7f60] Opening 'tmp/a64_1.webm' for writing

grep stderr: [webm_chunk @ 0000000002574cc0] Opening 'tmp/a32_1.webm' for writing

grep stderr: frame=  245 fps= 29 q=0.0 q=0.0 size=N/A time=00:00:10.30 bitrate=N/A speed=1.23x
grep stderr: frame=  258 fps= 29 q=0.0 q=0.0 size=N/A time=00:00:10.85 bitrate=N/A speed=1.22x
grep stderr: frame=  269 fps= 29 q=0.0 q=0.0 size=N/A time=00:00:11.30 bitrate=N/A speed= 1.2x
grep stderr: frame=  277 fps= 28 q=0.0 q=0.0 size=N/A time=00:00:11.64 bitrate=N/A speed=1.17x
grep stderr: frame=  285 fps= 27 q=0.0 q=0.0 size=N/A time=00:00:12.01 bitrate=N/A speed=1.15x
grep stderr: frame=  297 fps= 27 q=0.0 q=0.0 size=N/A time=00:00:12.48 bitrate=N/A speed=1.14x
grep stderr: frame=  304 fps= 27 q=0.0 q=0.0 size=N/A time=00:00:12.77 bitrate=N/A speed=1.11x
grep stderr: frame=  312 fps= 26 q=0.0 q=0.0 size=N/A time=00:00:13.09 bitrate=N/A speed=1.09x
grep stderr: frame=  320 fps= 25 q=0.0 q=0.0 size=N/A time=00:00:13.44 bitrate=N/A speed=1.07x
grep stderr: [webm_chunk @ 0000000002594440] Opening 'tmp/480_1.webm' for writing

grep stderr: [webm_chunk @ 0000000002bd5e00] Opening 'tmp/240_1.webm' for writing

grep stderr: frame=  325 fps= 25 q=0.0 q=0.0 size=N/A time=00:00:13.65 bitrate=N/A speed=1.04x
grep stderr: frame=  335 fps= 25 q=0.0 q=0.0 size=N/A time=00:00:14.05 bitrate=N/A speed=1.03x
grep stderr: frame=  345 fps= 24 q=0.0 q=0.0 size=N/A time=00:00:14.48 bitrate=N/A speed=1.02x
grep stderr: frame=  355 fps= 24 q=0.0 q=0.0 size=N/A time=00:00:14.89 bitrate=N/A speed=1.01x
grep stderr: [webm_chunk @ 0000000002bd7f60] Opening 'tmp/a64_2.webm' for writing

grep stderr: [webm_chunk @ 0000000002574cc0] Opening 'tmp/a32_2.webm' for writing

grep stderr: frame=  365 fps= 24 q=0.0 q=0.0 size=N/A time=00:00:15.31 bitrate=N/A speed=   1x
grep stderr: frame=  376 fps= 24 q=0.0 q=0.0 size=N/A time=00:00:15.76 bitrate=N/A speed=0.997x
grep stderr: frame=  390 fps= 24 q=0.0 q=0.0 size=N/A time=00:00:16.36 bitrate=N/A speed=   1x
grep stderr: frame=  405 fps= 24 q=0.0 q=0.0 size=N/A time=00:00:16.98 bitrate=N/A speed=1.01x
grep stderr: frame=  420 fps= 24 q=0.0 q=0.0 size=N/A time=00:00:17.60 bitrate=N/A speed=1.01x
grep stderr: frame=  434 fps= 24 q=0.0 q=0.0 size=N/A time=00:00:18.19 bitrate=N/A speed=1.02x
grep stderr: frame=  446 fps= 24 q=0.0 q=0.0 size=N/A time=00:00:18.68 bitrate=N/A speed=1.02x
grep stderr: frame=  457 fps= 24 q=0.0 q=0.0 size=N/A time=00:00:19.15 bitrate=N/A speed=1.01x
grep stderr: frame=  471 fps= 24 q=0.0 q=0.0 size=N/A time=00:00:19.73 bitrate=N/A speed=1.01x
grep stderr: [webm_chunk @ 0000000002594440] Opening 'tmp/480_2.webm' for writing

grep stderr: [webm_chunk @ 0000000002bd5e00] Opening 'tmp/240_2.webm' for writing

grep stderr: [webm_chunk @ 0000000002594440] Opening 'tmp/480_3.webm' for writing

grep stderr: [webm_chunk @ 0000000002bd5e00] Opening 'tmp/240_3.webm' for writing

grep stderr: [webm_chunk @ 0000000002bd7f60] Opening 'tmp/a64_3.webm' for writing

grep stderr: [webm_chunk @ 0000000002574cc0] Opening 'tmp/a32_3.webm' for writing

grep stderr: frame=  480 fps= 23 q=0.0 Lq=0.0 size=N/A time=00:00:20.01 bitrate=N/A speed=0.963x
video:1645kB audio:150kB subtitle:0kB other streams:0kB global headers:6kB muxing overhead: unknown

arg-f,webm_dash_manifest,-i,tmp/480.hdr,-f,webm_dash_manifest,-i,tmp/240.hdr,-f,webm_dash_manifest,-i,tmp/a64.hdr,-f,webm_dash_manifest,-i,tmp/a32.hdr,-c,copy,-map,0,-map,1,-map,2,-map,3,-f,webm_dash_manifest,-keyint_min,150,-adaptation_sets,"id=0,streams=0,1 id=1,streams=2,3",tmp/manifest.xml
Spawning ffmpeg -f webm_dash_manifest -i tmp/480.hdr -f webm_dash_manifest -i tmp/240.hdr -f webm_dash_manifest -i tmp/a64.hdr -f webm_dash_manifest -i tmp/a32.hdr -c copy -map 0 -map 1 -map 2 -map 3 -f webm_dash_manifest -keyint_min 150 -adaptation_sets "id=0,streams=0,1 id=1,streams=2,3" tmp/manifest.xml
grep stderr: ffmpeg version N-87353-g183fd30 Copyright (c) 2000-2017 the FFmpeg developers
  built with gcc 7.2.0 (GCC)
  configuration: --enable-gpl --enable-version3 --enable-cuda --enable-cuvid --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib

grep stderr:   libavutil      55. 76.100 / 55. 76.100
  libavcodec     57.106.101 / 57.106.101
  libavformat    57. 82.101 / 57. 82.101
  libavdevice    57.  8.101 / 57.  8.101
  libavfilter     6.105.100 /  6.105.100
  libswscale      4.  7.103 /  4.  7.103
  libswresample   2.  8.100 /  2.  8.100
  libpostproc    54.  6.100 / 54.  6.100

grep stderr: [webm_dash_manifest @ 00000000025124c0] Duplicate element

grep stderr:     Last message repeated 2 times
[webm_dash_manifest @ 00000000025124c0] Failed to read file headers
tmp/480.hdr: Operation not permitted