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    Puis-je poster des contenus à partir d’une tablette Ipad ?
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    MediaSPIP utilise les balises HTML5 video et audio pour la lecture de documents multimedia en profitant des dernières innovations du W3C supportées par les navigateurs modernes.
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    31 janvier 2010, par

    Le chemin d’un document audio ou vidéo dans SPIPMotion est divisé en trois étapes distinctes.
    Upload et récupération d’informations de la vidéo source
    Dans un premier temps, il est nécessaire de créer un article SPIP et de lui joindre le document vidéo "source".
    Au moment où ce document est joint à l’article, deux actions supplémentaires au comportement normal sont exécutées : La récupération des informations techniques des flux audio et video du fichier ; La génération d’une vignette : extraction d’une (...)

Sur d’autres sites (9379)

  • 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 - 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

  • ffmpeg can't convert mp4 to mp3 Output file #0 does not contain any stream

    21 août 2018, par Golden Fingers

    I can’t convert mp4 file to mp3 via ffmpeg. I tried these commands but they are not working and show the same error :

    Output file #0 does not contain any stream

    These are the commands :

    ffmpeg -i input.mp4 -c copy  -f mpegts output.mp3
    

    
ffmpeg -i input.mp4 -acodec libmp3lame output.mp3
    

    
ffmpeg -i input.mp4 -vn -f mp3 -ab 192k output.mp3
    

    
ffmpeg -i input.mp4 -vn -f wav - | \
    
       lame -V 3 - output.mp3

    Please help me.

    this is log -> ffmpeg -i input.mp4 -c copy -vn output.mp3

    ffmpeg version 2.8.8 Copyright (c) 2000-2016 the FFmpeg developers
    
  built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-28)
    
  configuration: --disable-static --enable-gpl --enable-version3 --enable-nonfree --enable-shared --enable-libmp3lame --enable-libx264 --enable-libvpx --enable-libvorbis --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopencore-amrnb --enable-libtheora --enable-libxvid --enable-libfdk_aac --enable-libopus --enable-libfreetype --enable-libfaac
    
  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
    
  libswscale      3.  1.101 /  3.  1.101
    
  libswresample   1.  2.101 /  1.  2.101
    
  libpostproc    53.  3.100 / 53.  3.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'input.mp4':
    
  Metadata:
    
    major_brand     : dash
    
    minor_version   : 0
    
    compatible_brands: iso6avc1mp41
    
    creation_time   : 2018-05-11 00:18:13
    
  Duration: 00:44:01.47, start: 0.000000, bitrate: 61 kb/s
    
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 320x240 [SAR 1:1 DAR 4:3], 0 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc (default)
    
    Metadata:
    
      creation_time   : 2018-05-11 00:18:13
    
      handler_name    : VideoHandler
    
Output #0, mp3, to 'output.mp3':
    
Output file #0 does not contain any stream

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