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• ffmpeg can't access to usb webcam from python subprocess.Popen in windows

  29 avril 2021, par Tomez

  If I run the following ffmpeg command from windows cmd it works
  

  


  ffmpeg -f dshow -i video="USB Video Device" -s 1280x720 -f rawvideo -pix_fmt rgb24 pipe:


  


  I then tried to execute the same in python
  
Python 3.7.4 (tags/v3.7.4:e09359112e, Jul 8 2019, 20:34:20) [MSC v.1916 64 bit (AMD64)] on win32

  


  args = [
    'ffmpeg', '-f', 'dshow', '-i', 'video=USB Video Device', '-s', '1280x720',
    '-f', 'rawvideo', '-pix_fmt','rgb24', 'pipe:'
]
ffmpeg_proc = subprocess.Popen(args, stdout=subprocess.PIPE)


  


  but I get this error

  


  D:\Projects\Applications\VideoCapture\Virtualenv\Scripts\python.exe D:/Projects/Applications/VideoCapture/Sources/Application/video_capture.py "USB Video Device" 1280 720
ffmpeg version 4.4-full_build-www.gyan.dev Copyright (c) 2000-2021 the FFmpeg developers
  built with gcc 10.2.0 (Rev6, Built by MSYS2 project)
  configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-lzma --enable-libsnappy --enable-zlib --enable-librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libdav1d --enable-libzvbi --enable-librav1e --enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-libglslang --enable-vulkan --enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libilbc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint
  libavutil      56. 70.100 / 56. 70.100
  libavcodec     58.134.100 / 58.134.100
  libavformat    58. 76.100 / 58. 76.100
  libavdevice    58. 13.100 / 58. 13.100
  libavfilter     7.110.100 /  7.110.100
  libswscale      5.  9.100 /  5.  9.100
  libswresample   3.  9.100 /  3.  9.100
  libpostproc    55.  9.100 / 55.  9.100
Input #0, dshow, from 'video=USB Video Device':
  Duration: N/A, bitrate: N/A
  Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 640x480, 30 fps, 30 tbr, 10000k tbn, 10000k tbc
Stream mapping:
  Stream #0:0 -> #0:0 (rawvideo (native) -> rawvideo (native))
Press [q] to stop, [?] for help
video=USB Video Device: I/O error
Output #0, rawvideo, to 'pipe:':
  Metadata:
    encoder         : Lavf58.76.100
  Stream #0:0: Video: rawvideo (RGB[24] / 0x18424752), rgb24, 1280x720, q=2-31, 663552 kb/s, 30 fps, 30 tbn
    Metadata:
      encoder         : Lavc58.134.100 rawvideo
frame=    0 fps=0.0 q=0.0 Lsize=       0kB time=00:00:00.00 bitrate=N/A speed=   0x    
video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)


  


  The inportant row is USB Video Device : I/O error
  
I've tried also to add shell=True to the Popen but with the same result.

  


  Doing some tests I found that using pycharm debug mode or simply lunching the same code inside "Pycharm Python Console" no more I/O error and all seems to work. I think something changes in the environment created for the subrocess but I wasn't able to understand what PyCharm is doing under the hood.

  


  Here the output inside PyCharm Python Console

  


  D:\Projects\Applications\VideoCapture\Virtualenv\Scripts\python.exe "C:\Program Files\JetBrains\PyCharm Community Edition 2019.1.1\plugins\python-ce\helpers\pydev\pydevconsole.py" --mode=client --port=65058
import sys; print('Python %s on %s' % (sys.version, sys.platform))
sys.path.extend(['D:\\Projects\\Applications\\VideoCapture', 'D:\\Projects\\Applications\\VideoCapture\\Sources\\Application', 'D:\\Projects\\Applications\\VideoCapture\\Sources\\Compiler', 'D:/Projects/Applications/VideoCapture'])
PyDev console: starting.
Python 3.7.4 (tags/v3.7.4:e09359112e, Jul  8 2019, 20:34:20) [MSC v.1916 64 bit (AMD64)] on win32
runfile('D:/Projects/Applications/VideoCapture/Sources/Application/video_capture.py', args=['USB Video Device', '1280', '720'], wdir='D:/Projects/Applications/VideoCapture/Sources/Application')
ffmpeg version 4.4-full_build-www.gyan.dev Copyright (c) 2000-2021 the FFmpeg developers
  built with gcc 10.2.0 (Rev6, Built by MSYS2 project)
  configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-lzma --enable-libsnappy --enable-zlib --enable-librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libdav1d --enable-libzvbi --enable-librav1e --enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-libglslang --enable-vulkan --enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libilbc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint
  libavutil      56. 70.100 / 56. 70.100
  libavcodec     58.134.100 / 58.134.100
  libavformat    58. 76.100 / 58. 76.100
  libavdevice    58. 13.100 / 58. 13.100
  libavfilter     7.110.100 /  7.110.100
  libswscale      5.  9.100 /  5.  9.100
  libswresample   3.  9.100 /  3.  9.100
  libpostproc    55.  9.100 / 55.  9.100
Input #0, dshow, from 'video=USB Video Device':
  Duration: N/A, start: 111984.462000, bitrate: N/A
  Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 640x480, 30 fps, 30 tbr, 10000k tbn, 10000k tbc
Stream mapping:
  Stream #0:0 -> #0:0 (rawvideo (native) -> rawvideo (native))
Press [q] to stop, [?] for help
Output #0, rawvideo, to 'pipe:':
  Metadata:
    encoder         : Lavf58.76.100
  Stream #0:0: Video: rawvideo (RGB[24] / 0x18424752), rgb24(pc, progressive), 1280x720, q=2-31, 663552 kb/s, 30 fps, 30 tbn
    Metadata:
      encoder         : Lavc58.134.100 rawvideo
av_interleaved_write_frame(): Invalid argument
    Last message repeated 1 times
Error writing trailer of pipe:: Invalid argument
frame=  118 fps= 30 q=-0.0 Lsize=  313200kB time=00:00:03.93 bitrate=652306.1kbits/s dup=53 drop=0 speed=   1x


  


  Does anyone now how to fix this problem or have any knowledge on how PyCharm Python Console works ?

  


• How to include audio in an overlay ffmpeg command ?

  27 avril 2021, par gilad s

  Using ffmpeg I add a video overlay successfully over an origin video (origin has audio, overlay doesn't). However the audio of the origin video doesn't appear in the result video.

  


    ffmpeg  -i source.mp4 -i overlay.mp4 -filter_complex "[0:v]setpts=PTS-STARTPTS, scale=1280x720[top]; 
  [1:v]setpts=PTS-STARTPTS, scale=1280x720, format=yuva420p, 
  colorchannelmixer=aa=0.2[bottom]; [top][bottom]overlay=shortest=1" 
  -shortest -acodec copy -vcodec libx264 result1.mp4


  


  Even if I execute the following separate command on the result of the previous command - still no audio appears in the new result video.

  


    ffmpeg -i result1.mp4 -i audio.mp3 -c:v copy -c:a aac result2.mp4


  


  Here is the log :

  


  ffmpeg version 4.4 Copyright (c) 2000-2021 the FFmpeg developers
  built with Apple clang version 11.0.0 (clang-1100.0.33.17)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/4.4 --enable-shared --enable-pthreads --enable-version3 --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libdav1d --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-videotoolbox
  libavutil      56. 70.100 / 56. 70.100
  libavcodec     58.134.100 / 58.134.100
  libavformat    58. 76.100 / 58. 76.100
  libavdevice    58. 13.100 / 58. 13.100
  libavfilter     7.110.100 /  7.110.100
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  9.100 /  5.  9.100
  libswresample   3.  9.100 /  3.  9.100
  libpostproc    55.  9.100 / 55.  9.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'course/final_video/3008_01_01_01_audio.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.76.100
  Duration: 00:06:01.48, start: 0.000000, bitrate: 215 kb/s
  Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 141 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)
    Metadata:
      handler_name    : VideoHandler
      vendor_id       : [0][0][0][0]
  Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 22050 Hz, mono, fltp, 70 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
      vendor_id       : [0][0][0][0]
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from 'images/overlay.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.76.100
  Duration: 00:24:00.38, start: 0.000000, bitrate: 575 kb/s
  Stream #1:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1280x720 [SAR 1:1 DAR 16:9], 442 kb/s, 24 fps, 24 tbr, 12288 tbn, 48 tbc (default)
    Metadata:
      handler_name    : ISO Media file produced by Google Inc. Created on: 11/22/2020.
      vendor_id       : [0][0][0][0]
  Stream #1:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 127 kb/s (default)
    Metadata:
      handler_name    : ISO Media file produced by Google Inc. Created on: 11/22/2020.
      vendor_id       : [0][0][0][0]
Stream mapping:
  Stream #0:0 (h264) -> setpts
  Stream #1:0 (h264) -> setpts
  overlay -> Stream #0:0 (libx264)
  Stream #1:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
[swscaler @ 0x10c590000] No accelerated colorspace conversion found from yuva420p to argb.
[libx264 @ 0x7fc532813200] using SAR=1/1
[libx264 @ 0x7fc532813200] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x7fc532813200] profile High, level 3.1, 4:2:0, 8-bit
[libx264 @ 0x7fc532813200] 264 - core 161 r3049 55d517b - H.264/MPEG-4 AVC codec - Copyleft 2003-2021 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to 'course/final_video/3008_01_01_01_overlay.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.76.100
  Stream #0:0: Video: h264 (avc1 / 0x31637661), yuv420p(progressive), 1280x720 [SAR 1:1 DAR 16:9], q=2-31, 25 fps, 12800 tbn (default)
    Metadata:
      encoder         : Lavc58.134.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
  Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 127 kb/s (default)
    Metadata:
      handler_name    : ISO Media file produced by Google Inc. Created on: 11/22/2020.
      vendor_id       : [0][0][0][0]

Stream mapping:
  Stream #0:0 (h264) -> setpts
  Stream #1:0 (h264) -> setpts
  overlay -> Stream #0:0 (libx264)
  Stream #1:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
[swscaler @ 0x10c590000] No accelerated colorspace conversion found from yuva420p to argb.
[libx264 @ 0x7fc532813200] using SAR=1/1
[libx264 @ 0x7fc532813200] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x7fc532813200] profile High, level 3.1, 4:2:0, 8-bit
[libx264 @ 0x7fc532813200] 264 - core 161 r3049 55d517b - H.264/MPEG-4 AVC codec - Copyleft 2003-2021 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to 'course/final_video/3008_01_01_01_overlay.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.76.100
  Stream #0:0: Video: h264 (avc1 / 0x31637661), yuv420p(progressive), 1280x720 [SAR 1:1 DAR 16:9], q=2-31, 25 fps, 12800 tbn (default)
    Metadata:
      encoder         : Lavc58.134.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
  Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 127 kb/s (default)
    Metadata:
      handler_name    : ISO Media file produced by Google Inc. Created on: 11/22/2020.
      vendor_id       : [0][0][0][0]
frame= 9037 fps= 32 q=-1.0 Lsize=   20954kB time=00:06:01.62 bitrate= 474.7kbits/s speed=1.26x    
video:15006kB audio:5651kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.439596%
[libx264 @ 0x7fc532813200] frame I:37    Avg QP:14.51  size:123799
[libx264 @ 0x7fc532813200] frame P:2277  Avg QP:16.97  size:  3221
[libx264 @ 0x7fc532813200] frame B:6723  Avg QP:24.31  size:   513
[libx264 @ 0x7fc532813200] consecutive B-frames:  0.8%  0.0%  0.0% 99.2%
[libx264 @ 0x7fc532813200] mb I  I16..4:  8.3% 64.9% 26.9%
[libx264 @ 0x7fc532813200] mb P  I16..4:  0.5%  1.1%  0.2%  P16..4: 16.1%  3.1%  2.3%  0.0%  0.0%    skip:76.7%
[libx264 @ 0x7fc532813200] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8: 10.5%  0.1%  0.0%  direct: 0.2%  skip:89.2%  L0:45.2% L1:54.7% BI: 0.1%
[libx264 @ 0x7fc532813200] 8x8 transform intra:63.6% inter:83.0%
[libx264 @ 0x7fc532813200] coded y,uvDC,uvAC intra: 56.4% 61.0% 42.7% inter: 1.9% 1.9% 0.0%
[libx264 @ 0x7fc532813200] i16 v,h,dc,p: 29% 18% 18% 35%
[libx264 @ 0x7fc532813200] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 24% 19% 31%  4%  4%  4%  4%  5%  5%
[libx264 @ 0x7fc532813200] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 32% 22% 15%  4%  5%  6%  5%  5%  5%
[libx264 @ 0x7fc532813200] i8c dc,h,v,p: 51% 29% 14%  6%
[libx264 @ 0x7fc532813200] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0x7fc532813200] ref P L0: 66.0%  6.9% 17.0% 10.1%
[libx264 @ 0x7fc532813200] ref B L0: 77.2% 20.6%  2.2%
[libx264 @ 0x7fc532813200] ref B L1: 90.2%  9.8%
[libx264 @ 0x7fc532813200] kb/s:340.06


  


• Audio clipping after amerge in FFmpeg

  23 avril 2021, par gooey_duck

  Hoping someone out there can help me with this audio issue I'm having using FFmpeg. I've written a bash script using FFmpeg that processes as source a broadcast quality ProRes (HQ) file with four mono tracks of audio. Source audio is LPCM 24-bit, 48kHz signed little endian, and I am exporting the same. Track 1 is full mix left, track 2 is full mix right, track 3 is music/FX left and track 4 is music/FX right. The script takes the source video and trims the video asset using in and out points from a sidecar XML. It also adds a custom slate at the head that uses a separate slate-only MOV file and is joined together via concat. Custom text is added to the slate via the drawtext filter and, finally, audio tracks 3 and 4 are removed and tracks 1 and 2 are merged together into a single stereo interleaved track using amerge.

  


  All of this, seemingly, works like a charm. The problem I'm noticing occurs when I run the resulting export through our in-house QC software. This software detects audio signal clipping at multiple points throughout the file created by FFmpeg. When I create this exact same file via Adobe Premiere or another transcode system, our QC does not detect any clipping. Our QC tools also do not detect any clipping in the source file. This leads me to believe that the clipping is being introduced either by FFmpeg or by my implementation of it. I've tried multiple additional filters within FFmpeg, including pan, amix, volume, etc., but nothing seems to help.

  


  Anyone have any ideas ? Pasting the relevant section of my script for reference :

  


  ffmpeg \
-ss "$hour":"$min":"$sec""$mil_fin" \
-t "$hour_minus":"$min_b":"$sec_b""$mil_fin_b" \
-i "$vid" \
-i "$elements_path"Slate_HD.mov \
-filter_complex \
"[0:a:0] [0:a:1] amerge=inputs=2 [stereo]; \
[1:0] [1:1] [0:0] [stereo] concat=n=2:v=1:a=1 [v] [a]; \
[v]drawtext=enable='between(t,0,28)':fontfile="$fonts"Arial.ttf:fontsize=50:fontcolor=white\
:x=170:y=170:text='$title', \
drawtext=enable='between(t,0,28)':fontfile="$fonts"Arial.ttf:fontsize=50:fontcolor=white\
:x=170:y=170+50:text='Series $series_number Episode $episode_number', \
drawtext=enable='between(t,0,28)':fontfile="$fonts"Arial.ttf:fontsize=50:fontcolor=white\
:x=170:y=170+150:text='$transcode_date', \
yadif=0:-1:0 [o]" \
-map '[o]' -map '[a]' \
-timecode 09:59:30:00 \
-c:v prores_ks -profile:v 3 \
-c:a pcm_s24le \
-threads 3 \
"$output_name".mov


  


  Per suggestion, simplified audio only command line was run as follows :

  


  ffmpeg -i test.mov -i Slate_HD.mov -filter_complex "[0:a:0] [0:a:1] amerge=inputs=2 [stereo];[1:a][stereo]concat=n=2:a=1:v=0" -c:a pcm_s24le test_output.mov


  


  ...and the log from that command line :

  


  ffmpeg version 4.3.2 Copyright (c) 2000-2021 the FFmpeg developers
  built with Apple clang version 12.0.0 (clang-1200.0.32.29)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/4.3.2_3 --enable-shared --enable-pthreads --enable-version3 --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libdav1d --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-videotoolbox
  libavutil      56. 51.100 / 56. 51.100
  libavcodec     58. 91.100 / 58. 91.100
  libavformat    58. 45.100 / 58. 45.100
  libavdevice    58. 10.100 / 58. 10.100
  libavfilter     7. 85.100 /  7. 85.100
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  7.100 /  5.  7.100
  libswresample   3.  7.100 /  3.  7.100
  libpostproc    55.  7.100 / 55.  7.100
Guessed Channel Layout for Input Stream #0.1 : mono
Guessed Channel Layout for Input Stream #0.2 : mono
Guessed Channel Layout for Input Stream #0.3 : mono
Guessed Channel Layout for Input Stream #0.4 : mono
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/input/test.mov':
  Metadata:
    major_brand     : qt  
    minor_version   : 537199360
    compatible_brands: qt  
    creation_time   : 2021-04-22T18:58:58.000000Z
  Duration: 00:02:00.04, start: 0.000000, bitrate: 170739 kb/s
    Stream #0:0(eng): Video: prores (HQ) (apch / 0x68637061), yuv422p10le(tv, bt709/unknown/unknown, top coded first (swapped)), 1920x1080, 166061 kb/s, SAR 1:1 DAR 16:9, 25 fps, 25 tbr, 25 tbn, 25 tbc (default)
    Metadata:
      creation_time   : 2021-04-22T18:58:58.000000Z
      handler_name    : Apple Video Media Handler
      encoder         : Apple ProRes 422 HQ
      timecode        : 00:00:00:00
    Stream #0:1(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, mono, s32 (24 bit), 1152 kb/s (default)
    Metadata:
      creation_time   : 2021-04-22T18:58:58.000000Z
      handler_name    : Apple Sound Media Handler
      timecode        : 00:00:00:00
    Stream #0:2(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, mono, s32 (24 bit), 1152 kb/s (default)
    Metadata:
      creation_time   : 2021-04-22T18:58:58.000000Z
      handler_name    : Apple Sound Media Handler
      timecode        : 00:00:00:00
    Stream #0:3(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, mono, s32 (24 bit), 1152 kb/s (default)
    Metadata:
      creation_time   : 2021-04-22T18:58:58.000000Z
      handler_name    : Apple Sound Media Handler
      timecode        : 00:00:00:00
    Stream #0:4(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, mono, s32 (24 bit), 1152 kb/s (default)
    Metadata:
      creation_time   : 2021-04-22T18:58:58.000000Z
      handler_name    : Apple Sound Media Handler
      timecode        : 00:00:00:00
    Stream #0:5(eng): Data: none (tmcd / 0x64636D74) (default)
    Metadata:
      creation_time   : 2021-04-22T18:58:58.000000Z
      handler_name    : Time Code Media Handler
      timecode        : 00:00:00:00
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from '/input/Slate_HD.mov':
  Metadata:
    major_brand     : qt  
    minor_version   : 537199360
    compatible_brands: qt  
    creation_time   : 2021-03-22T17:23:16.000000Z
  Duration: 00:00:30.00, start: 0.000000, bitrate: 77599 kb/s
    Stream #1:0(eng): Video: prores (HQ) (apch / 0x68637061), yuv422p10le(tv, bt709, progressive), 1920x1080, 75783 kb/s, SAR 1:1 DAR 16:9, 25 fps, 25 tbr, 25 tbn, 25 tbc (default)
    Metadata:
      creation_time   : 2021-03-22T17:23:16.000000Z
      handler_name    : Apple Video Media Handler
      encoder         : Apple ProRes 422 HQ
      timecode        : 00:00:00:00
    Stream #1:1(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, stereo, s16, 1536 kb/s (default)
    Metadata:
      creation_time   : 2021-03-22T17:23:16.000000Z
      handler_name    : Apple Sound Media Handler
      timecode        : 00:00:00:00
    Stream #1:2(eng): Data: none (tmcd / 0x64636D74), 0 kb/s (default)
    Metadata:
      creation_time   : 2021-03-22T17:23:16.000000Z
      handler_name    : Time Code Media Handler
      timecode        : 00:00:00:00
Stream mapping:
  Stream #0:1 (pcm_s24le) -> amerge:in0 (graph 0)
  Stream #0:2 (pcm_s24le) -> amerge:in1 (graph 0)
  Stream #1:1 (pcm_s16le) -> concat:in0:a0 (graph 0)
  concat (graph 0) -> Stream #0:0 (pcm_s24le)
  Stream #0:0 -> #0:1 (prores (native) -> h264 (libx264))
Press [q] to stop, [?] for help
[libx264 @ 0x7feadf81a600] using SAR=1/1
[libx264 @ 0x7feadf81a600] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x7feadf81a600] profile High 4:2:2, level 4.0, 4:2:2, 10-bit
[libx264 @ 0x7feadf81a600] 264 - core 161 r3048 b86ae3c - H.264/MPEG-4 AVC codec - Copyleft 2003-2021 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=81 qpstep=4 ip_ratio=1.40 aq=1:1.00
[Parsed_amerge_0 @ 0x7feade41dfc0] No channel layout for input 1
[Parsed_amerge_0 @ 0x7feade41dfc0] Input channel layouts overlap: output layout will be determined by the number of distinct input channels
Output #0, mov, to '/output/test_output.mov':
  Metadata:
    major_brand     : qt  
    minor_version   : 537199360
    compatible_brands: qt  
    encoder         : Lavf58.45.100
    Stream #0:0: Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, stereo, s32, 2304 kb/s (default)
    Metadata:
      encoder         : Lavc58.91.100 pcm_s24le
    Stream #0:1(eng): Video: h264 (libx264) (avc1 / 0x31637661), yuv422p10le(top coded first (swapped)), 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 0.04 fps, 12800 tbn, 25 tbc (default)
    Metadata:
      creation_time   : 2021-04-22T18:58:58.000000Z
      handler_name    : Apple Video Media Handler
      timecode        : 00:00:00:00
      encoder         : Lavc58.91.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
frame=   47 fps=0.0 q=0.0 size=       0kB time=00:00:00.02 bitrate=  15.0kbits/sframe=   88 fps= 80 q=40.0 size=     256kB time=00:00:01.17 bitrate=1791.7kbits/frame=  133 fps= 82 q=40.0 size=     768kB time=00:00:02.98 bitrate=2110.4kbits/frame=  164 fps= 76 q=40.0 size=    1280kB time=00:00:04.21 bitrate=2488.8kbits/frame=  185 fps= 70 q=40.0 size=    1792kB time=00:00:05.06 bitrate=2899.0kbits/frame=  195 fps= 61 q=40.0 size=    2048kB time=00:00:05.44 bitrate=3079.6kbits/frame=  206 fps= 55 q=40.0 size=    2560kB time=00:00:05.89 bitrate=3557.0kbits/frame=  218 fps= 51 q=40.0 size=    3072kB time=00:00:06.38 bitrate=3942.1kbits/frame=  230 fps= 47 q=40.0 size=    3584kB time=00:00:06.85 bitrate=4284.1kbits/frame=  242 fps= 44 q=40.0 size=    4096kB time=00:00:07.34 bitrate=4570.7kbits/frame=  251 fps= 42 q=37.0 size=    4352kB time=00:00:07.70 bitrate=4627.7kbits/frame=  265 fps= 41 q=40.0 size=    5376kB time=00:00:08.25 bitrate=5334.4kbits/frame=  272 fps= 39 q=40.0 size=    5632kB time=00:00:08.53 bitrate=5406.8kbits/frame=  283 fps= 37 q=40.0 size=    5888kB time=00:00:08.98 bitrate=5370.6kbits/frame=  296 fps= 37 q=40.0 size=    6400kB .04 bitrate=5549.0kbits/frame= 3001 fps= 21 q=-1.0 Lsize=  106530kB time=00:02:30.04 bitrate=5816.4kbits/s speed=1.07x    
video:64287kB audio:42199kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.041280%
[libx264 @ 0x7feadf81a600] frame I:33    Avg QP:33.56  size:113497
[libx264 @ 0x7feadf81a600] frame P:984   Avg QP:36.20  size: 35478
[libx264 @ 0x7feadf81a600] frame B:1984  Avg QP:37.44  size: 13696
[libx264 @ 0x7feadf81a600] consecutive B-frames: 11.5%  0.9%  0.9% 86.8%
[libx264 @ 0x7feadf81a600] mb I  I16..4:  3.4% 86.8%  9.7%
[libx264 @ 0x7feadf81a600] mb P  I16..4:  1.6% 13.7%  0.7%  P16..4: 44.3%  8.5%  7.0%  0.0%  0.0%    skip:24.2%
[libx264 @ 0x7feadf81a600] mb B  I16..4:  0.1%  1.1%  0.0%  B16..8: 47.6%  2.4%  0.3%  direct: 1.3%  skip:47.3%  L0:47.0% L1:51.3% BI: 1.7%
[libx264 @ 0x7feadf81a600] 8x8 transform intra:85.9% inter:88.3%
[libx264 @ 0x7feadf81a600] coded y,uvDC,uvAC intra: 67.9% 73.8% 13.9% inter: 20.8% 21.6% 0.6%
[libx264 @ 0x7feadf81a600] i16 v,h,dc,p: 48% 15%  4% 33%
[libx264 @ 0x7feadf81a600] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 19% 11% 27%  6%  7%  7%  7%  8%  7%
[libx264 @ 0x7feadf81a600] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 28% 15% 14%  7%  9%  9%  8%  6%  5%
[libx264 @ 0x7feadf81a600] i8c dc,h,v,p: 57% 12% 24%  7%
[libx264 @ 0x7feadf81a600] Weighted P-Frames: Y:0.1% UV:0.1%
[libx264 @ 0x7feadf81a600] ref P L0: 69.1% 21.7%  9.2%  0.0%
[libx264 @ 0x7feadf81a600] ref B L0: 87.2% 10.4%  2.5%
[libx264 @ 0x7feadf81a600] ref B L1: 94.9%  5.1%
[libx264 @ 0x7feadf81a600] kb/s:4387.16
WU:~ user$ 
ffmpeg version 4.3.2 Copyright (c) 2000-2021 the FFmpeg developers
  built with Apple clang version 12.0.0 (clang-1200.0.32.29)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/4.3.2_3 --enable-shared --enable-pthreads --enable-version3 --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libdav1d --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-videotoolbox
  libavutil      56. 51.100 / 56. 51.100
  libavcodec     58. 91.100 / 58. 91.100
  libavformat    58. 45.100 / 58. 45.100
  libavdevice    58. 10.100 / 58. 10.100
  libavfilter     7. 85.100 /  7. 85.100
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  7.100 /  5.  7.100
  libswresample   3.  7.100 /  3.  7.100
  libpostproc    55.  7.100 / 55.  7.100
Guessed Channel Layout for Input Stream #0.1 : mono
Guessed Channel Layout for Input Stream #0.2 : mono
Guessed Channel Layout for Input Stream #0.3 : mono
Guessed Channel Layout for Input Stream #0.4 : mono
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/input/test.mov':
  Metadata:
    major_brand     : qt  
    minor_version   : 537199360
    compatible_brands: qt  
    creation_time   : 2021-04-22T18:58:58.000000Z
  Duration: 00:02:00.04, start: 0.000000, bitrate: 170739 kb/s
    Stream #0:0(eng): Video: prores (HQ) (apch / 0x68637061), yuv422p10le(tv, bt709/unknown/unknown, top coded first (swapped)), 1920x1080, 166061 kb/s, SAR 1:1 DAR 16:9, 25 fps, 25 tbr, 25 tbn, 25 tbc (default)
    Metadata:
      creation_time   : 2021-04-22T18:58:58.000000Z
      handler_name    : Apple Video Media Handler
      encoder         : Apple ProRes 422 HQ
      timecode        : 00:00:00:00
    Stream #0:1(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, mono, s32 (24 bit), 1152 kb/s (default)
    Metadata:
      creation_time   : 2021-04-22T18:58:58.000000Z
      handler_name    : Apple Sound Media Handler
      timecode        : 00:00:00:00
    Stream #0:2(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, mono, s32 (24 bit), 1152 kb/s (default)
    Metadata:
      creation_time   : 2021-04-22T18:58:58.000000Z
      handler_name    : Apple Sound Media Handler
      timecode        : 00:00:00:00
    Stream #0:3(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, mono, s32 (24 bit), 1152 kb/s (default)
    Metadata:
      creation_time   : 2021-04-22T18:58:58.000000Z
      handler_name    : Apple Sound Media Handler
      timecode        : 00:00:00:00
    Stream #0:4(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, mono, s32 (24 bit), 1152 kb/s (default)
    Metadata:
      creation_time   : 2021-04-22T18:58:58.000000Z
      handler_name    : Apple Sound Media Handler
      timecode        : 00:00:00:00
    Stream #0:5(eng): Data: none (tmcd / 0x64636D74) (default)
    Metadata:
      creation_time   : 2021-04-22T18:58:58.000000Z
      handler_name    : Time Code Media Handler
      timecode        : 00:00:00:00
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from '/input/Slate_HD.mov':
  Metadata:
    major_brand     : qt  
    minor_version   : 537199360
    compatible_brands: qt  
    creation_time   : 2021-03-22T17:23:16.000000Z
  Duration: 00:00:30.00, start: 0.000000, bitrate: 77599 kb/s
    Stream #1:0(eng): Video: prores (HQ) (apch / 0x68637061), yuv422p10le(tv, bt709, progressive), 1920x1080, 75783 kb/s, SAR 1:1 DAR 16:9, 25 fps, 25 tbr, 25 tbn, 25 tbc (default)
    Metadata:
      creation_time   : 2021-03-22T17:23:16.000000Z
      handler_name    : Apple Video Media Handler
      encoder         : Apple ProRes 422 HQ
      timecode        : 00:00:00:00
    Stream #1:1(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, stereo, s16, 1536 kb/s (default)
    Metadata:
      creation_time   : 2021-03-22T17:23:16.000000Z
      handler_name    : Apple Sound Media Handler
      timecode        : 00:00:00:00
    Stream #1:2(eng): Data: none (tmcd / 0x64636D74), 0 kb/s (default)
    Metadata:
      creation_time   : 2021-03-22T17:23:16.000000Z
      handler_name    : Time Code Media Handler
      timecode        : 00:00:00:00
Stream mapping:
  Stream #0:1 (pcm_s24le) -> amerge:in0 (graph 0)
  Stream #0:2 (pcm_s24le) -> amerge:in1 (graph 0)
  Stream #1:1 (pcm_s16le) -> concat:in0:a0 (graph 0)
  concat (graph 0) -> Stream #0:0 (pcm_s24le)
  Stream #0:0 -> #0:1 (prores (native) -> h264 (libx264))
Press [q] to stop, [?] for help
[libx264 @ 0x7feadf81a600] using SAR=1/1
[libx264 @ 0x7feadf81a600] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x7feadf81a600] profile High 4:2:2, level 4.0, 4:2:2, 10-bit
[libx264 @ 0x7feadf81a600] 264 - core 161 r3048 b86ae3c - H.264/MPEG-4 AVC codec - Copyleft 2003-2021 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=81 qpstep=4 ip_ratio=1.40 aq=1:1.00
[Parsed_amerge_0 @ 0x7feade41dfc0] No channel layout for input 1
[Parsed_amerge_0 @ 0x7feade41dfc0] Input channel layouts overlap: output layout will be determined by the number of distinct input channels
Output #0, mov, to '/output/test_output.mov':
  Metadata:
    major_brand     : qt  
    minor_version   : 537199360
    compatible_brands: qt  
    encoder         : Lavf58.45.100
    Stream #0:0: Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, stereo, s32, 2304 kb/s (default)
    Metadata:
      encoder         : Lavc58.91.100 pcm_s24le
    Stream #0:1(eng): Video: h264 (libx264) (avc1 / 0x31637661), yuv422p10le(top coded first (swapped)), 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 0.04 fps, 12800 tbn, 25 tbc (default)
    Metadata:
      creation_time   : 2021-04-22T18:58:58.000000Z
      handler_name    : Apple Video Media Handler
      timecode        : 00:00:00:00
      encoder         : Lavc58.91.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
frame=   47 fps=0.0 q=0.0 size=       0kB time=00:00:00.02 bitrate=  15.0kbits/sframe=   88 fps= 80 q=40.0 size=     256kB time=00:00:01.17 bitrate=1791.7kbits/frame=  133 fps= 82 q=40.0 size=     768kB time=00:00:02.98 bitrate=2110.4kbits/frame=  164 fps= 76 q=40.0 size=    1280kB time=00:00:04.21 bitrate=2488.8kbits/frame=  185 fps= 70 q=40.0 size=    1792kB time=00:00:05.06 bitrate=2899.0kbits/frame=  195 fps= 61 q=40.0 size=    2048kB time=00:00:05.44 bitrate=3079.6kbits/frame=  206 fps= 55 q=40.0 size=    2560kB time=00:00:05.89 bitrate=3557.0kbits/frame=  218 fps= 51 q=40.0 size=    3072kB time=00:00:06.38 bitrate=3942.1kbits/frame=  230 fps= 47 q=40.0 size=    3584kB time=00:00:06.85 bitrate=4284.1kbits/frame=  242 fps= 44 q=40.0 size=    4096kB time=00:00:07.34 bitrate=4570.7kbits/frame=  251 fps= 42 q=37.0 size=    4352kB time=00:00:07.70 bitrate=4627.7kbits/frame=  265 fps= 41 q=40.0 size=    5376kB time=00:00:08.25 bitrate=5334.4kbits/frame=  272 fps= 39 q=40.0 size=    5632kB time=00:00:08.53 bitrate=5406.8kbits/frame=  283 fps= 37 q=40.0 size=    5888kB time=00:00:08.98 bitrate=5370.6kbits/frame=  296 fps= 37 q=40.0 size=    6400kB .04 bitrate=5549.0kbits/frame= 3001 fps= 21 q=-1.0 Lsize=  106530kB time=00:02:30.04 bitrate=5816.4kbits/s speed=1.07x    
video:64287kB audio:42199kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.041280%
[libx264 @ 0x7feadf81a600] frame I:33    Avg QP:33.56  size:113497
[libx264 @ 0x7feadf81a600] frame P:984   Avg QP:36.20  size: 35478
[libx264 @ 0x7feadf81a600] frame B:1984  Avg QP:37.44  size: 13696
[libx264 @ 0x7feadf81a600] consecutive B-frames: 11.5%  0.9%  0.9% 86.8%
[libx264 @ 0x7feadf81a600] mb I  I16..4:  3.4% 86.8%  9.7%
[libx264 @ 0x7feadf81a600] mb P  I16..4:  1.6% 13.7%  0.7%  P16..4: 44.3%  8.5%  7.0%  0.0%  0.0%    skip:24.2%
[libx264 @ 0x7feadf81a600] mb B  I16..4:  0.1%  1.1%  0.0%  B16..8: 47.6%  2.4%  0.3%  direct: 1.3%  skip:47.3%  L0:47.0% L1:51.3% BI: 1.7%
[libx264 @ 0x7feadf81a600] 8x8 transform intra:85.9% inter:88.3%
[libx264 @ 0x7feadf81a600] coded y,uvDC,uvAC intra: 67.9% 73.8% 13.9% inter: 20.8% 21.6% 0.6%
[libx264 @ 0x7feadf81a600] i16 v,h,dc,p: 48% 15%  4% 33%
[libx264 @ 0x7feadf81a600] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 19% 11% 27%  6%  7%  7%  7%  8%  7%
[libx264 @ 0x7feadf81a600] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 28% 15% 14%  7%  9%  9%  8%  6%  5%
[libx264 @ 0x7feadf81a600] i8c dc,h,v,p: 57% 12% 24%  7%
[libx264 @ 0x7feadf81a600] Weighted P-Frames: Y:0.1% UV:0.1%
[libx264 @ 0x7feadf81a600] ref P L0: 69.1% 21.7%  9.2%  0.0%
[libx264 @ 0x7feadf81a600] ref B L0: 87.2% 10.4%  2.5%
[libx264 @ 0x7feadf81a600] ref B L1: 94.9%  5.1%
[libx264 @ 0x7feadf81a600] kb/s:4387.16
WU:~ user$