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• ffmpeg : simple RTMP streaming

  2 avril 2013, par sajad

  I am trying to launch up a rtmp transcoder server using ffmpeg ; that receives udp MPEG-TS streams as input, transcodes it ; and generates an rtmp output to a URL, that can be accessed by users to receive and play the rtmp stream. All these are expected to be performed in a LAN and the output be accessed by all users.

  1) First I don't know where the URL should point to. Is it enought to specify the IP of the system and some optional port ? Is it neccessary that a program should be listening on that port ?

  2) How I can play the stream on the URL ?

  I use a linux ubuntu machine whith IP=10.1.1.229 and I want to transcode multicast stream on this URL : udp://@224.10.1.1:2001.

  here is the command used to transcode input stream and generate rtmp url "rtmp ://10.1.1.229:2020".

  ffmpeg -y -f mpegts -i "udp://@224.10.1.1:2001" -re -vcodec libx264 -maxrate 700k -r 25 -s 640x360 -deinterlace -acodec libfaac -ab 64k -ac 1 -ar 44100 -f flv "rtmp://10.1.1.229:2020"

  and here is the command by which I am trying to play rtmp stream :

  ffplay rtmp://10.1.1.229:2020

  Any guidance would be helpfull. Thank you.

• ffmpeg concat skips frames near end of each subclip

  3 janvier 2024, par calvinusesyourcode

  So I have some video files to concat but in the resulting video the last few frames of each subclip are buggy. Imagine in the last 5 frames the first 3 frames are skipped and so at the end of each clip it seems to jitter.

  


  It should be virtually impossible for my input videos to have any differences between them, as they were all recorded on the same iPhone and all converted with the same command :

  


  command = [
            'ffmpeg', '-y',
            '-i', input_path,
            '-vf', 'scale=1080:1920',
            '-r', '30',
            '-c:v', 'libx264',
            output_path
        ]
subprocess.run(command, check=True)


  


  I have tried re-encoding instead of merely copying and adding -r 30 but that doesn't seem to work.

  


  subprocess.run(["ffmpeg", "-y", "-f", "concat", "-safe", "0", "-i", temp_textfile, "-c", "copy", output_path])


  


      subprocess.run(["ffmpeg", "-y", "-f", "concat", "-safe", "0", "-i", temp_textfile, "-r", "30", "-c:v", "libx264", "-c:a", "aac", output_path], check=True)


  


  Somewhere someone said to open in VLC and do a frame-by-frame, reporting that "the frames are actually there, just not visually when watching normally". In my case the frame-by-frame reveals the frames are indeed being skipped.

  


  Full console output :

  


  ffmpeg version 2023-05-18-git-01d9a84ef5-full_build-www.gyan.dev Copyright (c) 2000-2023 the FFmpeg developers
  built with gcc 12.2.0 (Rev10, 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-bzlib --enable-lzma --enable-libsnappy --enable-zlib --enable-librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libaribb24 --enable-libaribcaption --enable-libdav1d --enable-libdavs2 --enable-libuavs3d --enable-libzvbi --enable-librav1e --enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxvid --enable-libaom --enable-libjxl --enable-libopenjpeg --enable-libvpx --enable-mediafoundation --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-liblensfun --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libvpl --enable-libshaderc --enable-vulkan --enable-libplacebo --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-libcodec2 --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      58.  7.100 / 58.  7.100
  libavcodec     60. 14.100 / 60. 14.100
  libavformat    60.  5.100 / 60.  5.100
  libavdevice    60.  2.100 / 60.  2.100
  libavfilter     9.  8.100 /  9.  8.100
  libswscale      7.  2.100 /  7.  2.100
  libswresample   4. 11.100 /  4. 11.100
  libpostproc    57.  2.100 / 57.  2.100
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001d60610ebc0] Auto-inserting h264_mp4toannexb bitstream filter
Input #0, concat, from 'run\broll_subclips.txt':
  Duration: N/A, start: -0.023220, bitrate: 3094 kb/s
  Stream #0:0(und): Video: h264 (High 10) (avc1 / 0x31637661), yuv420p10le(tv, bt2020nc/bt2020/arib-std-b67, progressive), 1080x1920, 2968 kb/s, 30 fps, 30 tbr, 15360 tbn
    Metadata:
      handler_name    : Core Media Video
      vendor_id       : [0][0][0][0]
      encoder         : Lavc60.14.100 libx264
  Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 126 kb/s
    Metadata:
      handler_name    : Core Media Audio
      vendor_id       : [0][0][0][0]
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
  Stream #0:1 -> #0:1 (aac (native) -> aac (native))
Press [q] to stop, [?] for help
[libx264 @ 000001d6066fd380] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX 
FMA3 BMI2 AVX2
[libx264 @ 000001d6066fd380] profile High 10, level 4.0, 4:2:0, 10-bit
[libx264 @ 000001d6066fd380] 264 - core 164 r3107 a8b68eb - H.264/MPEG-4 AVC codec - Copyleft 2003-2023 - 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
Output #0, mp4, to 'joined_clips.mp4':
  Metadata:
    encoder         : Lavf60.5.100
  Stream #0:0(und): Video: h264 (avc1 / 0x31637661), yuv420p10le(tv, bt2020nc/bt2020/arib-std-b67, progressive), 1080x1920, q=2-31, 30 fps, 15360 tbn
    Metadata:
      handler_name    : Core Media Video
      vendor_id       : [0][0][0][0]
      encoder         : Lavc60.14.100 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, 128 kb/s
    Metadata:
      handler_name    : Core Media Audio
      vendor_id       : [0][0][0][0]
      encoder         : Lavc60.14.100 aac
frame=    0 fps=0.0 q=0.0 size=       0kB time=00:00:00.23 bitrate=   1.7kbits/s dup[mov,mp4,m4a,3gp,3g2,mj2 @ 000001d608de8100] Auto-inserting h264_mp4toannexb bitstream filter
frame=    0 fps=0.0 q=0.0 size=       0kB time=00:00:01.97 bitrate=   0.2kbits/s dupframe=   42 fps= 41 q=41.0 size=     256kB time=00:00:01.97 bitrate=1062.7kbits/s du[mov,mp4,m4a,3gp,3g2,mj2 @ 000001d608de8100] Auto-inserting h264_mp4toannexb bitstream filter
frame=   81 fps= 53 q=41.0 size=     768kB time=00:00:04.71 bitrate=1334.8kbits/s du[mov,mp4,m4a,3gp,3g2,mj2 @ 000001d608de8100] Auto-inserting h264_mp4toannexb bitstream filter
frame=  124 fps= 61 q=41.0 size=    1280kB time=00:00:06.10 bitrate=1717.1kbits/s duframe=  178 fps= 69 q=38.0 size=    1536kB time=00:00:07.96 bitrate=1579.9kbits/s du[mov,mp4,m4a,3gp,3g2,mj2 @ 000001d608de8100] Auto-inserting h264_mp4toannexb bitstream filter
frame=  235 fps= 76 q=41.0 size=    2048kB time=00:00:09.84 bitrate=1704.1kbits/s du[mov,mp4,m4a,3gp,3g2,mj2 @ 000001d608de8100] Auto-inserting h264_mp4toannexb bitstream filter
frame=  273 fps= 76 q=41.0 size=    2560kB time=00:00:11.12 bitrate=1885.5kbits/s du[mov,mp4,m4a,3gp,3g2,mj2 @ 000001d608de8100] Auto-inserting h264_mp4toannexb bitstream filter
frame=  309 fps= 75 q=41.0 size=    2816kB time=00:00:12.30 bitrate=1874.5kbits/s duframe=  354 fps= 77 q=41.0 size=    3328kB time=00:00:13.83 bitrate=1969.9kbits/s du[mov,mp4,m4a,3gp,3g2,mj2 @ 000001d608de8100] Auto-inserting h264_mp4toannexb bitstream filter
frame=  411 fps= 80 q=41.0 size=    3840kB time=00:00:15.72 bitrate=2001.1kbits/s du[mov,mp4,m4a,3gp,3g2,mj2 @ 000001d608de8100] Auto-inserting h264_mp4toannexb bitstream filter
frame=  479 fps= 85 q=41.0 size=    4096kB time=00:00:17.99 bitrate=1864.6kbits/s du[mov,mp4,m4a,3gp,3g2,mj2 @ 000001d608de8100] Auto-inserting h264_mp4toannexb bitstream filter
frame=  515 fps= 84 q=41.0 size=    4608kB time=00:00:19.20 bitrate=1965.7kbits/s duframe=  549 fps= 81 q=41.0 size=    4864kB time=00:00:20.31 bitrate=1961.1kbits/s du[mov,mp4,m4a,3gp,3g2,mj2 @ 000001d60c3e8d40] Auto-inserting h264_mp4toannexb bitstream filter
frame=  600 fps= 83 q=41.0 size=    5632kB time=00:00:22.03 bitrate=2093.7kbits/s du[mov,mp4,m4a,3gp,3g2,mj2 @ 000001d60c3e8d40] Auto-inserting h264_mp4toannexb bitstream filter
frame=  648 fps= 83 q=41.0 size=    5888kB time=00:00:23.61 bitrate=2042.5kbits/s du[out#0/mp4 @ 000001d6061163c0] video:6385kB audio:335kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.377336%
frame=  724 fps= 86 q=-1.0 Lsize=    6746kB time=00:00:24.03 bitrate=2299.4kbits/s dup=6 drop=2 speed=2.86x
[libx264 @ 000001d6066fd380] frame I:12    Avg QP:26.96  size: 87427
[libx264 @ 000001d6066fd380] frame P:191   Avg QP:32.28  size: 15534
[libx264 @ 000001d6066fd380] frame B:521   Avg QP:35.40  size:  4840
[libx264 @ 000001d6066fd380] consecutive B-frames:  2.9%  2.8%  2.1% 92.3%
[libx264 @ 000001d6066fd380] mb I  I16..4: 21.0% 56.5% 22.5%
[libx264 @ 000001d6066fd380] mb P  I16..4:  1.9%  6.3%  1.0%  P16..4: 25.0%  4.5%  2.2%  0.0%  0.0%    skip:59.1%
[libx264 @ 000001d6066fd380] mb B  I16..4:  0.2%  0.7%  0.1%  B16..8: 24.4%  1.8%  0.2%  direct: 0.3%  skip:72.3%  L0:46.0% L1:50.7% BI: 3.3%
[libx264 @ 000001d6066fd380] 8x8 transform intra:64.9% inter:79.1%
[libx264 @ 000001d6066fd380] coded y,uvDC,uvAC intra: 42.4% 26.9% 3.0% inter: 3.7% 0.9% 0.0%
[libx264 @ 000001d6066fd380] i16 v,h,dc,p: 25% 28% 12% 35%
[libx264 @ 000001d6066fd380] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 23% 18% 23%  5%  6%  6% 
 6%  6%  6%
[libx264 @ 000001d6066fd380] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 27% 21% 19%  5%  6%  6% 
 7%  5%  5%
[libx264 @ 000001d6066fd380] i8c dc,h,v,p: 71% 13% 13%  4%
[libx264 @ 000001d6066fd380] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 000001d6066fd380] ref P L0: 68.7% 17.8% 13.4%
[libx264 @ 000001d6066fd380] ref B L0: 88.4%  9.1%  2.5%
[libx264 @ 000001d6066fd380] ref B L1: 96.9%  3.1%
[libx264 @ 000001d6066fd380] kb/s:2167.24
[aac @ 000001d606184b40] Qavg: 346.828


  


  UPDATE : I am thinking that the way I am converting my files from .mov to .mp4 is the problem. Please suggest the best way to convert from iPhone 4k 60fps .mov files to nice 1080p 30fps .mp4 files. I know I could just use handbrake but I am trying to be a man here xD. Perhaps handbrake has a View ffmpeg code for conversion.

  


  UPDATE 2 : re-encoding the videos before concat with -c:v libx264 fixes the problem... which seems weird because that is how they were originally encoded...

  


  def join_broll(video_paths, desired_length, clip_length=None, output_path="quick_clips.mp4", preserve_inputs=True):
    subclips = []
    total_duration = 0

    temp_textfile = os.path.join(run_folder, "broll_subclips.txt")
    j = 0
    with open(temp_textfile, "w") as file:
        while True:
            for i, video_path in enumerate(video_paths):

                time_left = desired_length - total_duration
                video_duration = duration_of(video_path)
                subclip_path = f"subclip_{i+j}.mp4"

                if (not clip_length and video_duration < time_left) or (clip_length and clip_length < time_left):

                    if clip_length:

                        subclips.append(subclip_path)
                        subprocess.run(["ffmpeg", "-y", "-i", video_path, "-t", str(clip_length), "-c:v", "libx264", subclip_path]) # added "-c:v libx264"
                        total_duration += clip_length
                        file.write(f"file '{os.path.join('..', subclip_path)}'\n")

                    else:
                    
                        subclips.append(subclip_path)
                        subprocess.run(["ffmpeg", "-y", "-i", video_path, "-c:v", "libx264", subclip_path]) # added "-c:v libx264"
                        total_duration += video_duration
                        file.write(f"file '{subclip_path}'\n")

                else:

                    subclips.append(subclip_path)
                    subprocess.run(["ffmpeg", "-y", "-i", video_path, "-t", str(time_left), "-c:v", "libx264", subclip_path]) # added "-c:v libx264"
                    total_duration += time_left
                    file.write(f"file '{os.path.join('..', subclip_path)}'\n")

                    break

            j += 1
            if desired_length - total_duration < 0.1:
                break
                

    subprocess.run(["ffmpeg", "-y", "-f", "concat", "-safe", "0", "-i", temp_textfile, "-c", "copy", output_path])
    # subprocess.run(["ffmpeg", "-y", "-f", "concat", "-safe", "0", "-i", temp_textfile, "-r", "30", "-c:v", "libx264", "-c:a", "aac", output_path], check=True)
    return output_path


  


• Problems video playing in some android devices (version 4+) but not in others

  5 juin 2014, par anquegi

  following the settings for video in android developers, http://developer.android.com/guide/appendix/media-formats.html I encoded a video using ffmpeg like this :

  ffmpeg -i gravityTrailer.mp4 -y -f mp4 -vcodec libx264 -profile:v baseline -acodec aac    -strict -2  -profile:a aac_low -b:v 500k -ar 44100 -b:a 128k -ac 2 -r 30 -s 480x360  output_hq.mp4

  which corresponds on sd highquality in table 2 from android developers (link above).

  Then i put this video in a server and use the class android.media.MediaPlayer to reproduce it from that URL like this

  https://cloudapp.somedomain.com/bmftvideos/output_hq.mp4

  The problem is that the video is played on android version 4+

  you can see the video on :
  LG G2,
  Sony xperia S

  you cannot see the video on :
  Samsung galaxy S4,
  BQ (spanish) aquaris 4.5

  And I don not know why

  this is the ffmpeg output :

  ffmpeg version 1.2.6 Copyright (c) 2000-2014 the FFmpeg developers
  
    built on Mar  5 2014 08:21:01 with gcc 4.8.2 (GCC) 20131212 (Red Hat 4.8.2-7)
  
    configuration: --prefix=/usr --bindir=/usr/bin --datadir=/usr/share/ffmpeg --incdir=/usr/include/ffmpeg --libdir=/usr/lib64 --mandir=/usr/share/man --arch=x86_64 --optflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic' --enable-bzlib --disable-crystalhd --enable-frei0r --enable-gnutls --enable-libass --enable-libcelt --enable-libdc1394 --disable-indev=jack --enable-libfreetype --enable-libgsm --enable-libmp3lame --enable-openal --enable-libopencv --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libv4l2 --enable-libvpx --enable-libx264 --enable-libxvid --enable-x11grab --enable-avfilter --enable-avresample --enable-postproc --enable-pthreads --disable-static --enable-shared --enable-gpl --disable-debug --disable-stripping --shlibdir=/usr/lib64 --enable-runtime-cpudetect
  
    libavutil      52. 18.100 / 52. 18.100
  
    libavcodec     54. 92.100 / 54. 92.100
  
    libavformat    54. 63.104 / 54. 63.104
  
    libavdevice    54.  3.103 / 54.  3.103
  
    libavfilter     3. 42.103 /  3. 42.103
  
    libswscale      2.  2.100 /  2.  2.100
  
    libswresample   0. 17.102 /  0. 17.102
  
    libpostproc    52.  2.100 / 52.  2.100
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x14e5ba0] stream 0, timescale not set
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x14e5ba0] max_analyze_duration 5000000 reached at 5013333 microseconds
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'gravityTrailer.mp4':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: mp42isomavc1
  
      creation_time   : 2013-12-01 03:59:56
  
      genre           : Trailer
  
      artist          : Warner Bros.
  
      title           : Gravity - 2K Trailer
  
      encoder         : HandBrake 0.9.9 2013051800
  
      date            : 2013
  
    Duration: 00:02:27.07, start: 0.000000, bitrate: 20296 kb/s
  
      Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 2048x858, 20149 kb/s, 23.98 fps, 23.98 tbr, 90k tbn, 47.95 tbc
  
      Metadata:
  
        creation_time   : 2013-12-01 03:59:56
  
      Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 153 kb/s
  
      Metadata:
  
        creation_time   : 2013-12-01 03:59:56
  
      Stream #0:2: Video: mjpeg, yuvj420p, 102x150 [SAR 72:72 DAR 17:25], 90k tbr, 90k tbn, 90k tbc
  
  [libx264 @ 0x1667680] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
  
  [libx264 @ 0x1667680] profile Constrained Baseline, level 3.0
  
  [libx264 @ 0x1667680] 264 - core 130 r2282 1db4621 - H.264/MPEG-4 AVC codec - Copyleft 2003-2013 - http://www.videolan.org/x264.html - options: cabac=0 ref=3 deblock=1:0:0 analyse=0x1:0x111 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=0 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=0 weightp=0 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=abr mbtree=1 bitrate=500 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
  
  Output #0, mp4, to 'output_hq.mp4':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: mp42isomavc1
  
      date            : 2013
  
      genre           : Trailer
  
      artist          : Warner Bros.
  
      title           : Gravity - 2K Trailer
  
      encoder         : Lavf54.63.104
  
      Stream #0:0(und): Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 480x360, q=-1--1, 500 kb/s, 15360 tbn, 30 tbc
  
      Metadata:
  
        creation_time   : 2013-12-01 03:59:56
  
      Stream #0:1(eng): Audio: aac ([64][0][0][0] / 0x0040), 44100 Hz, stereo, fltp, 128 kb/s
  
      Metadata:
  
        creation_time   : 2013-12-01 03:59:56
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 -> libx264)
  
    Stream #0:1 -> #0:1 (aac -> aac)
  
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  frame= 4410 fps= 65 q=-1.0 Lsize=   11154kB time=00:02:27.07 bitrate= 621.3kbits/s dup=885 drop=0    
  
  video:9062kB audio:1969kB subtitle:0 global headers:0kB muxing overhead 1.115392%
  
  [libx264 @ 0x1667680] frame I:186   Avg QP:28.41  size:  4446
  
  [libx264 @ 0x1667680] frame P:4224  Avg QP:29.20  size:  2001
  
  [libx264 @ 0x1667680] mb I  I16..4: 75.5%  0.0% 24.5%
  
  [libx264 @ 0x1667680] mb P  I16..4:  7.5%  0.0%  3.6%  P16..4: 23.1%  6.2%  1.8%  0.0%  0.0%    skip:57.7%
  
  [libx264 @ 0x1667680] final ratefactor: 27.96
  
  [libx264 @ 0x1667680] coded y,uvDC,uvAC intra: 24.0% 31.9% 8.6% inter: 7.4% 7.6% 0.6%
  
  [libx264 @ 0x1667680] i16 v,h,dc,p: 58% 15% 13% 14%
  
  [libx264 @ 0x1667680] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 28%  9% 27%  7%  6%  8%  5%  7%  3%
  
  [libx264 @ 0x1667680] i8c dc,h,v,p: 80%  7% 12%  2%
  
  [libx264 @ 0x1667680] ref P L0: 84.7%  9.4%  5.9%
  
  [libx264 @ 0x1667680] kb/s:504.98

  ---