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• FFmpeg : Invalid buffer size when streaming to Twitch

  1er décembre 2020, par user1965074

  I am streaming a 2560x1440 @ 24FPS to Twitch with this command :

  


  ffmpeg \
>     -f rawvideo \
>     -vcodec rawvideo \
>     -s 2560x1440 \
>     -pix_fmt bgr24 \
>     -r "24" \
>     -i 20200818-074700.mp4 \
>     -f flv \
>     -vcodec libx264 \
>     -profile:v main \
>     -g 48 \
>     -keyint_min 24 \
>     -b:v 4500k \
>     -minrate 4500k \
>     -maxrate 4500k \
>     -pix_fmt yuv420p \
>     -preset ultrafast \
>     -tune zerolatency \
>     -threads 0 \
>     -bufsize 4500k \
>     rtmp://live-arn.twitch.tv/app/{KEY}


  


  It fails with message Invalid buffer size, packet size 9137374 < expected frame_size 11059200. Given the error message, I have tried decreasing and increasing the 4500k in all places of the command as explained in this answer but it does not help.

  


  Here is the full log

  


  ffmpeg version 2.8.17-0ubuntu0.1 Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.12) 20160609
  configuration: --prefix=/usr --extra-version=0ubuntu0.1 --build-suffix=-ffmpeg --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --cc=cc --cxx=g++ --enable-gpl --enable-shared --disable-stripping --disable-decoder=libopenjpeg --disable-decoder=libschroedinger --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzvbi --enable-openal --enable-opengl --enable-x11grab --enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-frei0r --enable-libx264 --enable-libopencv
  libavutil      54. 31.100 / 54. 31.100
  libavcodec     56. 60.100 / 56. 60.100
  libavformat    56. 40.101 / 56. 40.101
  libavdevice    56.  4.100 / 56.  4.100
  libavfilter     5. 40.101 /  5. 40.101
  libavresample   2.  1.  0 /  2.  1.  0
  libswscale      3.  1.101 /  3.  1.101
  libswresample   1.  2.101 /  1.  2.101
  libpostproc    53.  3.100 / 53.  3.100
[rawvideo @ 0xfb3120] Estimating duration from bitrate, this may be inaccurate
Input #0, rawvideo, from '20200818-074700.mp4':
  Duration: 00:00:02.96, start: 0.000000, bitrate: 2118169 kb/s
    Stream #0:0: Video: rawvideo (BGR[24] / 0x18524742), bgr24, 2560x1440, 2123366 kb/s, 24 tbr, 24 tbn, 24 tbc
[libx264 @ 0xfbdfc0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
[libx264 @ 0xfbdfc0] profile Constrained Baseline, level 5.0
[libx264 @ 0xfbdfc0] 264 - core 148 r2643 5c65704 - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=22 lookahead_threads=16 sliced_threads=1 slices=22 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=48 keyint_min=24 scenecut=0 intra_refresh=0 rc_lookahead=0 rc=cbr mbtree=0 bitrate=4500 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 vbv_maxrate=4500 vbv_bufsize=4500 nal_hrd=none filler=0 ip_ratio=1.40 aq=0
Output #0, flv, to 'rtmp://live-arn.twitch.tv/app/{KEY}':
  Metadata:
    encoder         : Lavf56.40.101
    Stream #0:0: Video: h264 (libx264) ([7][0][0][0] / 0x0007), yuv420p, 2560x1440, q=-1--1, 4500 kb/s, 24 fps, 1k tbn, 24 tbc
    Metadata:
      encoder         : Lavc56.60.100 libx264
Stream mapping:
  Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264))
Press [q] to stop, [?] for help
[libx264 @ 0xfbdfc0] VBV underflow (frame 0, -1827312 bits)
Truncating packet of size 11059200 to 9137375me=00:00:02.33 bitrate=6051.7kbits/s    
[rawvideo @ 0xfbca80] Invalid buffer size, packet size 9137374 < expected frame_size 11059200
Error while decoding stream #0:0: Invalid argument
[flv @ 0xfbd020] Failed to update header with correct duration.
[flv @ 0xfbd020] Failed to update header with correct filesize.
frame=   70 fps= 54 q=52.0 Lsize=    2029kB time=00:00:02.91 bitrate=5698.4kbits/s    
video:2026kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.152412%
[libx264 @ 0xfbdfc0] frame I:2     Avg QP:47.09  size:381468
[libx264 @ 0xfbdfc0] frame P:68    Avg QP:51.00  size: 19279
[libx264 @ 0xfbdfc0] mb I  I16..4: 100.0%  0.0%  0.0%
[libx264 @ 0xfbdfc0] mb P  I16..4: 14.1%  0.0%  0.0%  P16..4:  2.7%  0.0%  0.0%  0.0%  0.0%    skip:83.2%
[libx264 @ 0xfbdfc0] coded y,uvDC,uvAC intra: 8.2% 94.6% 83.0% inter: 0.0% 3.2% 0.7%
[libx264 @ 0xfbdfc0] i16 v,h,dc,p: 87%  1% 12%  0%
[libx264 @ 0xfbdfc0] i8c dc,h,v,p: 98%  1%  2%  0%
[libx264 @ 0xfbdfc0] kb/s:5688.52


  


• FFmpeg videos not working on QuickPlayer (and therefore on OpenCV)

  7 mai 2018, par Gabrielle

  I know that there are several posts about FFMpeg not working on QuickPlayer (and OpenCV) and other players supporting only YUV planar color space, but NONE of the solutions I’ve found worked for me.

  I need it to run on OpenCV, but as far as I found, it will never run on OpenCV if it is not running on QuickPlayer, so, I think I might start fixing the QuickPlayer issue. The generated video is a screen record, and it works perfectly on VLC.

  Configurations used :

  MacOs High Sierra
  
  ffmpeg version 4.0 (installed with: --with-opus --with-libvpx )
  
  opencv version 3.4.1_4
  
  Homebrew 1.6.2 (used to install ffmpeg and opencv)

  Command used to record the video :

  ffmpeg -f avfoundation -video_size 1980x1140 -framerate 30 -i '1' 
  
  -vcodec libx264 -preset ultrafast -an -qp 0 -pix_fmt yuv444p video.mkv -y

  Note1 : I already tried to change -pix_fmt to yuv420p

  Note2 : I already tried to add -vf scale=640:-2,format=yuv420p

  Note3 : I already tried to re-install OpenCV --with-ffmpeg

  Note4 : I tried mkv, mp4, avi. I really don’t care about the extension, I just need it to work.

  Note5 : I need it to be a cross-plataform solution, as far as I read ffmpeg should work in all OS, but first I am trying to fix on mac and then I will check others...

  Any ideas ? Maybe a missing flag ? A missing library ?

  @Gyan suggested me to change the qp flag to a number higher than 0, I did it

  ffmpeg -f avfoundation -video_size 1980x1140 -framerate 30 -i '1' -vcodec libx264 -preset ultrafast -an -qp 2 -pix_fmt yuv444p video_test.mp4 -y

  This is my output :

  ffmpeg version 4.0 Copyright (c) 2000-2018 the FFmpeg developers
  
    built with Apple LLVM version 9.0.0 (clang-900.0.39.2)
  
    configuration: --prefix=/usr/local/Cellar/ffmpeg/4.0 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-gpl --enable-ffplay --enable-frei0r --enable-libass --enable-libfdk-aac --enable-libfontconfig --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopus --enable-librtmp --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxvid --enable-opencl --enable-videotoolbox --disable-lzma --enable-libopenjpeg --disable-decoder=jpeg2000 --extra-cflags=-I/usr/local/Cellar/openjpeg/2.3.0/include/openjpeg-2.3 --enable-nonfree
  
    libavutil      56. 14.100 / 56. 14.100
  
    libavcodec     58. 18.100 / 58. 18.100
  
    libavformat    58. 12.100 / 58. 12.100
  
    libavdevice    58.  3.100 / 58.  3.100
  
    libavfilter     7. 16.100 /  7. 16.100
  
    libavresample   4.  0.  0 /  4.  0.  0
  
    libswscale      5.  1.100 /  5.  1.100
  
    libswresample   3.  1.100 /  3.  1.100
  
    libpostproc    55.  1.100 / 55.  1.100
  
  [avfoundation @ 0x7fbb8f80ee00] Selected pixel format (yuv420p) is not supported by the input device.
  
  [avfoundation @ 0x7fbb8f80ee00] Supported pixel formats:
  
  [avfoundation @ 0x7fbb8f80ee00]   uyvy422
  
  [avfoundation @ 0x7fbb8f80ee00]   yuyv422
  
  [avfoundation @ 0x7fbb8f80ee00]   nv12
  
  [avfoundation @ 0x7fbb8f80ee00]   0rgb
  
  [avfoundation @ 0x7fbb8f80ee00]   bgr0
  
  [avfoundation @ 0x7fbb8f80ee00] Overriding selected pixel format to use uyvy422 instead.
  
  [avfoundation @ 0x7fbb8f80ee00] Stream #0: not enough frames to estimate rate; consider increasing probesize
  
  Input #0, avfoundation, from '1':
  
    Duration: N/A, start: 118955.291667, bitrate: N/A
  
      Stream #0:0: Video: rawvideo (UYVY / 0x59565955), uyvy422, 1440x900, 1000k tbr, 1000k tbn, 1000k tbc
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264))
  
  Press [q] to stop, [?] for help
  
  [mp4 @ 0x7fbb8f87d200] Frame rate very high for a muxer not efficiently supporting it.
  
  Please consider specifying a lower framerate, a different muxer or -vsync 2
  
  [libx264 @ 0x7fbb8f87f600] MB rate (5130000000) > level limit (16711680)
  
  [libx264 @ 0x7fbb8f87f600] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
  
  [libx264 @ 0x7fbb8f87f600] profile High 4:4:4 Predictive, level 6.2, 4:4:4 8-bit
  
  [libx264 @ 0x7fbb8f87f600] 264 - core 152 r2854 e9a5903 - H.264/MPEG-4 AVC codec - Copyleft 2003-2017 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=6 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=0 intra_refresh=0 rc=cqp mbtree=0 qp=2 ip_ratio=1.40 aq=0
  
  Output #0, mp4, to 'video_test.mp4':
  
    Metadata:
  
      encoder         : Lavf58.12.100
  
      Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv444p, 1440x900, q=-1--1, 1000k fps, 1000k tbn, 1000k tbc
  
      Metadata:
  
        encoder         : Lavc58.18.100 libx264
  
      Side data:
  
        cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1

• FFMpeg Watermark Quality Very Bad

  22 janvier 2016, par John Cliven

  I’m trying to add a watermark to a video which works fine, the only issue is the quality is greatly degraded. It also reduces the resolution of the video, making it a smaller size than it originally was. I am using the following command :

  ffmpeg -i fade.mp4 -i watermark.png -filter_complex "scale=512:-2,overlay=(main_w-overlay_w)-2:(main_h-overlay_h)-2" -strict -2 final.mp4

  I have also tried the following to specify high quality, but it produces the same bad quality video :

  ffmpeg -i fade.mp4 -i watermark.png -filter_complex "scale=512:-2,overlay=(main_w-overlay_w)-2:(main_h-overlay_h)-2" -qscale 0 -strict -2 final.mp4

  Here is the output from ffmpeg :

  root@shell:~/videos# ffmpeg -i fade.mp4 -i watermark.png -filter_complex "scale=512:-2,overlay=(main_w-overlay_w)-2:(main_h-overlay_h)-2" -strict -2 final.mp4
  
  ffmpeg version 2.7.4-0ubuntu0.15.10.1 Copyright (c) 2000-2015 the FFmpeg developers
  
    built with gcc 5.2.1 (Ubuntu 5.2.1-22ubuntu2) 20151010
  
    configuration: --prefix=/usr --extra-version=0ubuntu0.15.10.1 --build-suffix=-ffmpeg --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --enable-shared --disable-stripping --enable-avresample --enable-avisynth --enable-frei0r --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-openal --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libshine --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libxvid --enable-libzvbi --enable-opengl --enable-x11grab --enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-libssh --enable-libsoxr --enable-libx264 --enable-libopencv --enable-libx265
  
    libavutil      54. 27.100 / 54. 27.100
  
    libavcodec     56. 41.100 / 56. 41.100
  
    libavformat    56. 36.100 / 56. 36.100
  
    libavdevice    56.  4.100 / 56.  4.100
  
    libavfilter     5. 16.101 /  5. 16.101
  
    libavresample   2.  1.  0 /  2.  1.  0
  
    libswscale      3.  1.101 /  3.  1.101
  
    libswresample   1.  2.100 /  1.  2.100
  
    libpostproc    53.  3.100 / 53.  3.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'fade.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf56.36.100
  
    Duration: 00:00:29.13, start: 0.023220, bitrate: 1158 kb/s
  
      Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 1027 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
      Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 125 kb/s (default)
  
      Metadata:
  
        handler_name    : SoundHandler
  
  Input #1, png_pipe, from 'watermark.png':
  
    Duration: N/A, bitrate: N/A
  
      Stream #1:0: Video: png, rgba(pc), 200x45 [SAR 11811:11811 DAR 40:9], 25 tbr, 25 tbn, 25 tbc
  
  [libx264 @ 0x24743c0] using SAR=1/1
  
  [libx264 @ 0x24743c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
  
  [libx264 @ 0x24743c0] profile High, level 2.1
  
  [libx264 @ 0x24743c0] 264 - core 146 r2555 0c21480 - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - videolan[cannotpostlink]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=9 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 'final.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf56.36.100
  
      Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 512x288 [SAR 1:1 DAR 16:9], q=-1--1, 29.97 fps, 30k tbn, 29.97 tbc (default)
  
      Metadata:
  
        encoder         : Lavc56.41.100 libx264
  
      Stream #0:1(eng): Audio: aac ([64][0][0][0] / 0x0040), 44100 Hz, stereo, fltp, 128 kb/s (default)
  
      Metadata:
  
        handler_name    : SoundHandler
  
        encoder         : Lavc56.41.100 aac
  
  Stream mapping:
  
    Stream #0:0 (h264) -> scale (graph 0)
  
    Stream #1:0 (png) -> overlay:overlay (graph 0)
  
    overlay (graph 0) -> Stream #0:0 (libx264)
  
    Stream #0:1 -> #0:1 (aac (native) -> aac (native))
  
  Press [q] to stop, [?] for help
  
  frame=  874 fps= 86 q=-1.0 Lsize=    1308kB time=00:00:29.09 bitrate= 368.2kbits/s dup=1 drop=0
  
  video:837kB audio:440kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.454302%
  
  [libx264 @ 0x24743c0] frame I:5     Avg QP:21.11  size: 10348
  
  [libx264 @ 0x24743c0] frame P:363   Avg QP:22.00  size:  1698
  
  [libx264 @ 0x24743c0] frame B:506   Avg QP:23.35  size:   371
  
  [libx264 @ 0x24743c0] consecutive B-frames: 17.0%  7.1% 30.5% 45.3%
  
  [libx264 @ 0x24743c0] mb I  I16..4: 21.1% 41.7% 37.2%
  
  [libx264 @ 0x24743c0] mb P  I16..4:  2.6%  3.3%  1.2%  P16..4: 26.6% 12.0%  5.2%  0.0%  0.0%    skip:49.1%
  
  [libx264 @ 0x24743c0] mb B  I16..4:  0.3%  0.1%  0.0%  B16..8: 32.2%  2.8%  0.3%  direct: 0.2%  skip:64.1%  L0:38.5% L1:57.9% BI: 3.6%
  
  [libx264 @ 0x24743c0] 8x8 transform intra:44.2% inter:71.4%
  
  [libx264 @ 0x24743c0] coded y,uvDC,uvAC intra: 41.7% 32.3% 8.2% inter: 6.6% 3.5% 0.1%
  
  [libx264 @ 0x24743c0] i16 v,h,dc,p: 50% 32%  6% 12%
  
  [libx264 @ 0x24743c0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 23% 21% 24%  4%  5%  7%  5%  5%  6%
  
  [libx264 @ 0x24743c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 27% 30% 12%  4%  6%  7%  6%  5%  5%
  
  [libx264 @ 0x24743c0] i8c dc,h,v,p: 67% 19% 12%  2%
  
  [libx264 @ 0x24743c0] Weighted P-Frames: Y:0.0% UV:0.0%
  
  [libx264 @ 0x24743c0] ref P L0: 65.7% 18.3% 11.2%  4.8%
  
  [libx264 @ 0x24743c0] ref B L0: 84.6% 11.7%  3.7%
  
  [libx264 @ 0x24743c0] ref B L1: 95.2%  4.8%
  
  [libx264 @ 0x24743c0] kb/s:234.81
  
  root@shell:~/videos#