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• FFmpeg - Buffer queue overflow, dropping - when combining 2 videos and using concat, hstack and trim

  23 août 2018, par Mayank

  I am trying to merge two videos using concat and hstack but getting buffer overflow error resulting in the one of the video getting paused for few seconds.

  I tried adding fifo and h264 video codec as suggested on this forum but the issue persists.

  Can someone please let me know the issue in this command ? Many thanks in advance.

  ffmpeg -i 1_a.opus -i 2_a.opus -i 1_v.mp4 -i 2_v_bars.mp4 -filter_complex "[1:a]adelay=15720|15720[a1]; [0:a][a1]amix; [3:v]trim=0:15.81,geq=0:128:128,fifo [silence]; [silence][3:v]concat,fifo [3_v_silence]; [3_v_silence][2:v]hstack,fifo" -vcodec libx264 -strict experimental -y out_fifo_h264_2.mp4

  Following is the output :

  ffmpeg version 4.0.2-static https://johnvansickle.com/ffmpeg/  Copyright (c) 2000-2018 the FFmpeg developers
  
    built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516
  
    configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc-6 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gray --enable-libaom --enable-libfribidi --enable-libass --enable-libvmaf --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzimg
  
    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
  
    libswscale      5.  1.100 /  5.  1.100
  
    libswresample   3.  1.100 /  3.  1.100
  
    libpostproc    55.  1.100 / 55.  1.100
  
  Input #0, ogg, from '1_a.opus':
  
    Duration: 00:01:03.82, start: -0.020000, bitrate: 37 kb/s
  
      Stream #0:0: Audio: opus, 48000 Hz, stereo, fltp
  
  Input #1, ogg, from '2_a.opus':
  
    Duration: 00:00:52.40, start: -0.020000, bitrate: 44 kb/s
  
      Stream #1:0: Audio: opus, 48000 Hz, stereo, fltp
  
  Input #2, mov,mp4,m4a,3gp,3g2,mj2, from '1_v.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf56.40.101
  
    Duration: 00:01:03.83, start: 0.000000, bitrate: 2313 kb/s
  
      Stream #2:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 640x480 [SAR 1:1 DAR 4:3], 2302 kb/s, 333 fps, 333 tbr, 10656 tbn, 666 tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
  Input #3, mov,mp4,m4a,3gp,3g2,mj2, from '2_v_bars.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf58.12.100
  
    Duration: 00:00:52.32, start: 0.000000, bitrate: 286 kb/s
  
      Stream #3:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 640x480 [SAR 1:1 DAR 4:3], 284 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
  Stream mapping:
  
    Stream #0:0 (opus) -> amix:input0
  
    Stream #1:0 (opus) -> adelay
  
    Stream #2:0 (h264) -> hstack:input1
  
    Stream #3:0 (h264) -> trim
  
    Stream #3:0 (h264) -> concat:in1:v0
  
    amix -> Stream #0:0 (aac)
  
    fifo -> Stream #0:1 (libx264)
  
  Press [q] to stop, [?] for help
  
  [libx264 @ 0x50722c0] using SAR=1/1
  
  [libx264 @ 0x50722c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 Cache64 SlowShuffle
  
  [libx264 @ 0x50722c0] profile High, level 3.1
  
  [libx264 @ 0x50722c0] 264 - core 155 r2901 7d0ff22 - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - 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=3 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 'out_fifo_h264_2.mp4':
  
    Metadata:
  
      encoder         : Lavf58.12.100
  
      Stream #0:0: Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
  
      Metadata:
  
        encoder         : Lavc58.18.100 aac
  
      Stream #0:1: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1280x480 [SAR 1:1 DAR 8:3], q=-1--1, 25 fps, 12800 tbn, 25 tbc (default)
  
      Metadata:
  
        encoder         : Lavc58.18.100 libx264
  
      Side data:
  
        cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
  
  Past duration 0.924919 too large
  
  [Parsed_concat_5 @ 0x52e2e00] Buffer queue overflow, dropping.trate= 415.7kbits/s dup=0 drop=3349 speed=0.955x    
  
      Last message repeated 11 times
  
  [Parsed_concat_5 @ 0x52e2e00] Buffer queue overflow, dropping.trate= 394.0kbits/s dup=0 drop=3533 speed=0.962x    
  
      Last message repeated 11 times
  
  [Parsed_concat_5 @ 0x52e2e00] Buffer queue overflow, dropping.trate= 376.7kbits/s dup=0 drop=3698 speed=0.963x    
  
      Last message repeated 11 times
  
  [Parsed_concat_5 @ 0x52e2e00] Buffer queue overflow, dropping.trate= 362.1kbits/s dup=0 drop=3851 speed=0.96x    
  
      Last message repeated 12 times
  
  [Parsed_concat_5 @ 0x52e2e00] Buffer queue overflow, dropping.trate= 345.6kbits/s dup=0 drop=4033 speed=0.965x    
  
      Last message repeated 13 times
  
  [Parsed_concat_5 @ 0x52e2e00] Buffer queue overflow, dropping.trate= 331.0kbits/s dup=0 drop=4208 speed=0.969x    
  
      Last message repeated 12 times
  
  [Parsed_concat_5 @ 0x52e2e00] Buffer queue overflow, dropping.trate= 318.2kbits/s dup=0 drop=4381 speed=0.971x    
  
      Last message repeated 12 times
  
  [Parsed_concat_5 @ 0x52e2e00] Buffer queue overflow, dropping.trate= 305.8kbits/s dup=0 drop=4555 speed=0.974x    
  
      Last message repeated 12 times
  
  [Parsed_concat_5 @ 0x52e2e00] Buffer queue overflow, dropping.trate= 294.4kbits/s dup=0 drop=4733 speed=0.977x    
  
      Last message repeated 13 times
  
  [Parsed_concat_5 @ 0x52e2e00] Buffer queue overflow, dropping.trate= 283.7kbits/s dup=0 drop=4912 speed=0.98x    
  
      Last message repeated 12 times
  
  [Parsed_concat_5 @ 0x52e2e00] Buffer queue overflow, dropping.trate= 410.2kbits/s dup=0 drop=5094 speed=0.984x    
  
      Last message repeated 10 times
  
  frame= 1706 fps= 26 q=-1.0 Lsize=    4924kB time=00:01:08.16 bitrate= 591.8kbits/s dup=0 drop=21053 speed=1.02x    
  
  video:3914kB audio:958kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.061062%
  
  [aac @ 0x5040040] Qavg: 22388.959
  
  [libx264 @ 0x50722c0] frame I:7     Avg QP:15.90  size: 26657
  
  [libx264 @ 0x50722c0] frame P:502   Avg QP:19.36  size:  5413
  
  [libx264 @ 0x50722c0] frame B:1197  Avg QP:23.11  size:   922
  
  [libx264 @ 0x50722c0] consecutive B-frames:  5.2%  1.9%  5.5% 87.5%
  
  [libx264 @ 0x50722c0] mb I  I16..4: 26.8% 56.4% 16.7%
  
  [libx264 @ 0x50722c0] mb P  I16..4:  3.0%  2.8%  0.6%  P16..4: 21.6%  6.4%  3.2%  0.0%  0.0%    skip:62.3%
  
  [libx264 @ 0x50722c0] mb B  I16..4:  0.2%  0.1%  0.0%  B16..8: 18.8%  0.9%  0.1%  direct: 0.4%  skip:79.5%  L0:49.1% L1:48.8% BI: 2.1%
  
  [libx264 @ 0x50722c0] 8x8 transform intra:45.7% inter:70.7%
  
  [libx264 @ 0x50722c0] coded y,uvDC,uvAC intra: 39.5% 57.5% 22.6% inter: 4.2% 6.4% 0.2%
  
  [libx264 @ 0x50722c0] i16 v,h,dc,p: 22% 31% 19% 28%
  
  [libx264 @ 0x50722c0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 26% 23% 38%  2%  2%  2%  2%  3%  2%
  
  [libx264 @ 0x50722c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 35% 29% 21%  2%  3%  4%  2%  3%  1%
  
  [libx264 @ 0x50722c0] i8c dc,h,v,p: 55% 23% 18%  5%
  
  [libx264 @ 0x50722c0] Weighted P-Frames: Y:0.0% UV:0.0%
  
  [libx264 @ 0x50722c0] ref P L0: 65.6% 12.4% 16.1%  5.9%
  
  [libx264 @ 0x50722c0] ref B L0: 85.0% 12.2%  2.7%
  
  [libx264 @ 0x50722c0] ref B L1: 95.4%  4.6%
  
  [libx264 @ 0x50722c0] kb/s:469.82

• Changing Audio Volume using FFmpeg Android Error

  23 août 2018, par kataroty

  I am using FFmpeg and I need to change the volume of the Audio.

  This is the command that should change the volume of the audio :

  ffmpeg -i input.wav -filter:a "volume=1.5" output.wav

  I read from somewhere that it had to overwrite the file if it already existed so either one had to delete the file or use -y. When I tried to do it without the -y command it never got to onSuccess() or ´onFailure(), but it always printed out the onStart() message.

  String[] cmdy = { "-i -y" , pcmtowavTempFile.toString(),  "-af", "volume=5", pcmtowavTempFile.toString()};
  
      ffmpeg.execute(cmdy, new ExecuteBinaryResponseHandler() {
  
  
  
          @Override
  
          public void onStart() {
  
              System.out.println("ayy: onStart");
  
          }
  
  
  
          @Override
  
          public void onSuccess(String message) {
  
              System.out.println("ayy: onSuccess");
  
              super.onSuccess(message);
  
          }
  
          @Override
  
          public void onFailure(String message) {
  
              System.out.println("ayy: onFailure " + message);
  
              super.onFailure(message);
  
          }
  
  });

  At the moment I get this error :

  ffmpeg version n4.0-39-gda39990 Copyright (c) 2000-2018 the FFmpeg developers
  
    built with gcc 4.9.x (GCC) 20150123 (prerelease)
  
    configuration: --target-os=linux --cross-prefix=/root/bravobit/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/root/bravobit/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-ffprobe --enable-libopus --enable-libvorbis --enable-libfdk-aac --enable-libfreetype --enable-libfribidi --enable-libmp3lame --enable-fontconfig --enable-libvpx --enable-libass --enable-yasm --enable-pthreads --disable-debug --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-linux-perf --disable-doc --disable-shared --enable-static --enable-runtime-cpudetect --enable-nonfree --enable-network --enable-avresample --enable-avformat --enable-avcodec --enable-indev=lavfi --enable-hwaccels --enable-ffmpeg --enable-zlib --enable-gpl --enable-small --enable-nonfree --pkg-config=pkg-config --pkg-config-flags=--static --prefix=/root/bravobit/ffmpeg-android/build/armeabi-v7a --extra-cflags='-I/root/bravobit/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all' --extra-ldflags='-L/root/bravobit/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-cxxflags=
  
    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
  
  Unrecognized option 'i -y'.

  Which clearly states that it does not recognize option i -y, but also as I said earlier then if I remove the -y it never gets to onSuccess() or onFailure().

  help me to find a solution. Thanks.

• FFmpeg android video processing does not return error message

  25 août 2018, par Дмитрий Мельчин

  friends. I am creating a program that puts the sound and picture to video. I’m using the ffmpeg library https://github.com/bravobit/FFmpeg-Android.
  The command looks like this :

  String command = "-i /data/user/0/com.radpony.vhs.camcorder/files/RADVHS/camcorder_video.mp4 -i /data/user/0/com.radpony.vhs.camcorder/files/RADVHS/watermark_png.png -i /data/user/0/com.radpony.vhs.camcorder/files/RADVHS/playarrow.png -filter_complex [0]crop=720:720[croped];[1]scale=w=143:h=50[tmp];[croped][tmp]overlay=x=577:y=10[overlayed];[overlayed][2]overlay=x=150:y=10[overlayed2];[overlayed2]drawtext=fontfile=/data/user/0/com.radpony.vhs.camcorder/cache/VCR_OSD_MONO_1_001.ttf:text='PM 11\:06Aug..25 2018':fontcolor=white:fontsize=48:x=50:y=600[withdate];[withdate]drawtext=fontfile=/data/user/0/com.radpony.vhs.camcorder/cache/VCR_OSD_MONO_1_001.ttf:text='Play':fontcolor=white:fontsize=48:x=50:y=30 -codec:a copy -c:v libx264 -preset ultrafast /data/user/0/com.radpony.vhs.camcorder/files/RADVHS/rendered_video.mp4";

  It works great for Android 6, but on the Samsung devices with Android 7 while processing of video ffmpeg just stops without displaying an error message.
  If someone knows the solution to this problem, help, please