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  • MediaSPIP Core : La Configuration

    9 November 2010, by

    MediaSPIP Core fournit par défaut trois pages différentes de configuration (ces pages utilisent le plugin de configuration CFG pour fonctionner) : une page spécifique à la configuration générale du squelettes; une page spécifique à la configuration de la page d’accueil du site; une page spécifique à la configuration des secteurs;
    Il fournit également une page supplémentaire qui n’apparait que lorsque certains plugins sont activés permettant de contrôler l’affichage et les fonctionnalités spécifiques de (...)

  • Personnaliser en ajoutant son logo, sa bannière ou son image de fond

    5 September 2013, by

    Certains thèmes prennent en compte trois éléments de personnalisation : l’ajout d’un logo; l’ajout d’une bannière l’ajout d’une image de fond;

  • Librairies et logiciels spécifiques aux médias

    10 December 2010, by

    Pour un fonctionnement correct et optimal, plusieurs choses sont à prendre en considération.
    Il est important, après avoir installé apache2, mysql et php5, d’installer d’autres logiciels nécessaires dont les installations sont décrites dans les liens afférants. Un ensemble de librairies multimedias (x264, libtheora, libvpx) utilisées pour l’encodage et le décodage des vidéos et sons afin de supporter le plus grand nombre de fichiers possibles. Cf. : ce tutoriel; FFMpeg avec le maximum de décodeurs et (...)

On other websites (7079)

  • current version of ffmpeg3.3.2 encode twice time of my video,the duration last two times long

    20 June 2017, by jimmy

    I have a video with 00:01:41.46 play time,and transcode it perfect with ffmpeg-2.1.1,but when I upgrade FFmpeg version to 3.3.2 and compile it with the same compile option and same transcode option as 2.1.1 version used, I got a video with 00:03:21.82 long, I played that video to see what was added after 1:41.46, and find that it just repeat the video from the beginning with no audio, I find out no idea to this issue, it seems to be a bug that FFmpeg introducing, anyone help me!

    here is the log that I had transcoded with ffmpeg 3.3.2:

    ffmpeg -i natural.mp4 -c:v libx264 -c:a copy output.mp4
    
ffmpeg version 3.3.2 Copyright (c) 2000-2017 the FFmpeg developers
    
built with gcc 4.6 (Ubuntu/Linaro 4.6.4-6ubuntu2)
    

    
configuration: --enable-gpl --enable-nonfree --yasmexe=release/bin/yasm -- prefix=release --cc= --enable-static --disable-shared --disable-debug --extra-cflags=-Irelease/include --extra-ldflags='-Lrelease/lib -lm -ldl' --disable-ffplay --disable-ffprobe --disable-ffserver --disable-doc --enable-postproc --enable-bzlib --enable-zlib --enable-parsers --enable-libx264 --enable-libmp3lame --enable-libfdk-aac --enable-libspeex --enable-pthreads --extra->libs=-lpthread --enable-encoders --enable-decoders --enable-avfilter --enable->muxers --enable-demuxers
    

    
libavutil      55. 58.100 / 55. 58.100
    
libavcodec     57. 89.100 / 57. 89.100
    
libavformat    57. 71.100 / 57. 71.100
    
libavdevice    57.  6.100 / 57.  6.100
    
libavfilter     6. 82.100 /  6. 82.100
    
libswscale      4.  6.100 /  4.  6.100
    
libswresample   2.  7.100 /  2.  7.100
    
libpostproc    54.  5.100 / 54.  5.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'natural.mp4':
    
  Metadata:
    
  major_brand     : mp42
    
  minor_version   : 0
    
  compatible_brands: mp42isom
    
  creation_time   : 2009-07-11T08:32:34.000000Z
    
  encoder         : mp4creator 1.6.1d
    
  Duration: 00:01:41.46, start: 0.000000, bitrate: 9063 kb/s
    
  Stream #0:0(eng): Video: mpeg4 (Simple Profile) (mp4v / 0x7634706D), yuv420p, 1440x1080 [SAR 4:3 DAR 16:9], 8976 kb/s, 23.98 fps, 23.98 tbr, 90k tbn, 2997 tbc (default)
    
Metadata:
    
    creation_time   : 2009-07-11T08:32:34.000000Z
    
Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 125 kb/s (default)
    
Metadata:
    
    creation_time   : 2009-07-11T08:33:09.000000Z
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (mpeg4 (native) -> h264 (libx264))
    
  Stream #0:1 -> #0:1 (copy)
    
Press [q] to stop, [?] for help
    
[libx264 @ 0x2d951e0] using SAR=4/3
    
[libx264 @ 0x2d951e0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2
    
[libx264 @ 0x2d951e0] profile High, level 4.0
    
[libx264 @ 0x2d951e0] 264 - core 138 r1+3473M a37a143 - H.264/MPEG-4 AVC codec >- Copyleft 2003-2013 - 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=23 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 'output.mp4':
    
Metadata:
    
  major_brand     : mp42
    
  minor_version   : 0
    
  compatible_brands: mp42isom
    
  encoder         : Lavf57.71.100
    
Stream #0:0(eng): Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 1440x1080 [SAR 4:3 DAR 16:9], q=-1--1, 23.98 fps, 24k tbn, 23.98 tbc (default)
    
  Metadata:
    
    creation_time   : 2009-07-11T08:32:34.000000Z
    
    encoder         : Lavc57.89.100 libx264
    
  Side data:
    
    cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    
  Stream #0:1(eng): Audio: aac (LC) ([64][0][0][0] / 0x0040), 44100 Hz, stereo, fltp, 125 kb/s (default)
    
  Metadata:
    
    creation_time   : 2009-07-11T08:33:09.000000Z
    
frame= 4842 fps= 27 q=-1.0 Lsize=  107608kB time=00:03:21.82 
    
bitrate=4367.8kbits/s speed=1.11x     
    
    video:105973kB audio:1556kB subtitle:0kB other streams:0kB global headers:0kB >muxing overhead: 0.074199%
    
[libx264 @ 0x2d951e0] frame I:54    Avg QP:19.81  size: 77248
    
[libx264 @ 0x2d951e0] frame P:3960  Avg QP:22.01  size: 25371
    
[libx264 @ 0x2d951e0] frame B:828   Avg QP:23.01  size:  4680
    
[libx264 @ 0x2d951e0] consecutive B-frames: 75.2%  4.6%  4.3% 15.9%
    
[libx264 @ 0x2d951e0] mb I  I16..4: 17.0% 79.0%  3.9%
    
[libx264 @ 0x2d951e0] mb P  I16..4:  2.1%  7.8%  0.2%  P16..4: 43.9%  9.7% 6.4%  0.0%  0.0%    skip:29.9%
    
[libx264 @ 0x2d951e0] mb B  I16..4:  0.2%  1.1%  0.0%  B16..8: 29.2%  1.2%  0.2%  direct: 0.7%  skip:67.3%  L0:49.0% L1:47.7% BI: 3.3%
    
[libx264 @ 0x2d951e0] 8x8 transform intra:78.1% inter:81.6%
    
[libx264 @ 0x2d951e0] coded y,uvDC,uvAC intra: 52.3% 66.4% 11.9% inter: 20.5% >24.2% 0.8%
    
[libx264 @ 0x2d951e0] i16 v,h,dc,p: 32% 22% 28% 18%
    
[libx264 @ 0x2d951e0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 19% 19% 43%  3%  3%  3%  5%  2%  4%
    
[libx264 @ 0x2d951e0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 23% 24% 12%  4%  8%  7% 11%  4%  5%
    
[libx264 @ 0x2d951e0] i8c dc,h,v,p: 50% 23% 23%  4%
    
[libx264 @ 0x2d951e0] Weighted P-Frames: Y:1.5% UV:0.3%
    
[libx264 @ 0x2d951e0] ref P L0: 71.9% 17.0%  8.5%  2.5%  0.0%
    
[libx264 @ 0x2d951e0] ref B L0: 89.7%  9.2%  1.2%
    
[libx264 @ 0x2d951e0] ref B L1: 97.5%  2.5%
    
[libx264 @ 0x2d951e0] kb/s:4298.67

    Here is the output when use ffmpeg -i natural.mp4 -c copy out.mp4,the output still last double times long:

    ./ffmpeg -i natural.mp4 -c copy out.mp4
    
ffmpeg version 3.3.2 Copyright (c) 2000-2017 the FFmpeg developers
    
built with gcc 4.6 (Ubuntu/Linaro 4.6.4-6ubuntu2)
    
  configuration: --enable-gpl --enable-nonfree --yasmexe=release/bin/yasm --prefix=release --cc= --enable-static --disable-shared --disable-debug --extra-cflags=-Irelease/include --extra-ldflags='-Lrelease/lib -lm -ldl' --disable-ffplay --disable-ffprobe --disable-ffserver --disable-doc --enable-postproc --enable-bzlib --enable-zlib --enable-parsers --enable-libx264 --enable-libmp3lame --enable-libfdk-aac --enable-libspeex --enable-pthreads --extra-libs=-lpthread --enable-encoders --enable-decoders --enable-avfilter --enable-muxers --enable-demuxers
    
  libavutil      55. 58.100 / 55. 58.100
    
  libavcodec     57. 89.100 / 57. 89.100
    
  libavformat    57. 71.100 / 57. 71.100
    
  libavdevice    57.  6.100 / 57.  6.100
    
  libavfilter     6. 82.100 /  6. 82.100
    
  libswscale      4.  6.100 /  4.  6.100
    
  libswresample   2.  7.100 /  2.  7.100
    
  libpostproc    54.  5.100 / 54.  5.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'natural.mp4':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: mp42isom
    
    creation_time   : 2009-07-11T08:32:34.000000Z
    
    encoder         : mp4creator 1.6.1d
    
  Duration: 00:01:41.46, start: 0.000000, bitrate: 9063 kb/s
    
    Stream #0:0(eng): Video: mpeg4 (Simple Profile) (mp4v / 0x7634706D), yuv420p, 1440x1080 [SAR 4:3 DAR 16:9], 8976 kb/s, 23.98 fps, 23.98 tbr, 90k tbn, 2997 tbc (default)
    
    Metadata:
    
      creation_time   : 2009-07-11T08:32:34.000000Z
    
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 125 kb/s (default)
    
    Metadata:
    
      creation_time   : 2009-07-11T08:33:09.000000Z
    
Output #0, mp4, to 'out.mp4':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: mp42isom
    
    encoder         : Lavf57.71.100
    
    Stream #0:0(eng): Video: mpeg4 (Simple Profile) ( [0][0][0] / 0x0020), yuv420p, 1440x1080 [SAR 4:3 DAR 16:9], q=2-31, 8976 kb/s, 23.98 fps, 23.98 tbr, 90k tbn, 90k tbc (default)
    
    Metadata:
    
      creation_time   : 2009-07-11T08:32:34.000000Z
    
    Stream #0:1(eng): Audio: aac (LC) ([64][0][0][0] / 0x0040), 44100 Hz, stereo, fltp, 125 kb/s (default)
    
    Metadata:
    
      creation_time   : 2009-07-11T08:33:09.000000Z
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (copy)
    
  Stream #0:1 -> #0:1 (copy)
    
Press [q] to stop, [?] for help
    
frame= 4842 fps=2243 q=-1.0 Lsize=  222944kB time=00:03:21.91 
    
bitrate=9045.4kbits/s speed=93.5x    
    
video:221299kB audio:1556kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.039627%

    Here is the output what ffmpeg-2.1.1 generate,It’s executed correctly:

    ./ffmpeg -i natural.mp4 -c copy output2.mp4
    
ffmpeg version 2.1.1 Copyright (c) 2000-2013 the FFmpeg developers
    
  built on Mar 10 2017 13:56:14 with gcc 4.6 (Ubuntu/Linaro 4.6.4-6ubuntu2)
    
  configuration: --enable-gpl --enable-nonfree --yasmexe=release/bin/yasm --prefix=release --cc= --enable-static --disable-shared --disable-debug --extra-cflags='-I${ffmpeg_exported_release_dir}/include' --extra-ldflags='-L${ffmpeg_exported_release_dir}/lib -lm -ldl' --disable-ffplay --disable-ffprobe --disable-ffserver --disable-doc --enable-postproc --enable-bzlib --enable-zlib --enable-parsers --enable-libx264 --enable-libmp3lame --enable-libfdk-aac --enable-libspeex --enable-pthreads --extra-libs=-lpthread --enable-encoders --enable-decoders --enable-avfilter --enable-muxers --enable-demuxers
    
  libavutil      52. 48.101 / 52. 48.101
    
  libavcodec     55. 39.101 / 55. 39.101
    
  libavformat    55. 19.104 / 55. 19.104
    
  libavdevice    55.  5.100 / 55.  5.100
    
  libavfilter     3. 90.100 /  3. 90.100
    
  libswscale      2.  5.101 /  2.  5.101
    
  libswresample   0. 17.104 /  0. 17.104
    
  libpostproc    52.  3.100 / 52.  3.100
    
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x2d2e900] multiple edit list entries, a/v desync might occur, patch welcome
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'natural.mp4':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: mp42isom
    
    creation_time   : 2009-07-11 08:32:34
    
    encoder         : mp4creator 1.6.1d
    
  Duration: 00:01:41.46, start: 0.000000, bitrate: 9063 kb/s
    
    Stream #0:0(eng): Video: mpeg4 (Simple Profile) (mp4v / 0x7634706D), yuv420p, 1440x1080 [SAR 4:3 DAR 16:9], 8976 kb/s, 23.98 fps, 23.98 tbr, 90k tbn, 2997 tbc (default)
    
    Metadata:
    
      creation_time   : 2009-07-11 08:32:34
    
    Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 125 kb/s (default)
    
    Metadata:
    
      creation_time   : 2009-07-11 08:33:09
    
Output #0, mp4, to 'output2.mp4':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: mp42isom
    
    encoder         : Lavf55.19.104
    
    Stream #0:0(eng): Video: mpeg4 ( [0][0][0] / 0x0020), yuv420p, 1440x1080 [SAR 4:3 DAR 16:9], q=2-31, 8976 kb/s, 23.98 fps, 90k tbn, 90k tbc (default)
    
    Metadata:
    
      creation_time   : 2009-07-11 08:32:34
    
    Stream #0:1(eng): Audio: aac ([64][0][0][0] / 0x0040), 44100 Hz, stereo, 125 kb/s (default)
    
    Metadata:
    
      creation_time   : 2009-07-11 08:33:09
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (copy)
    
  Stream #0:1 -> #0:1 (copy)
    
Press [q] to stop, [?] for help
    
frame= 2421 fps=0.0 q=-1.0 Lsize=  112273kB time=00:01:41.49 bitrate=9062.0kbits/s    
    
video:110650kB audio:1556kB subtitle:0 global headers:0kB muxing overhead 0.060302%

    Here is the video link

  • FFMPEG conversion failed at random times on live stream to youtube

    3 April 2022, by good karma

    I am running a bash script using ubuntu server on arm64 that live streams video and audio to youtube, heres the script below

    


    FFMPEG is the lateset version available in the ubuntu repo

    


    #! /bin/bash

VBR="8000k"
FPS="24"
QUAL="superfast"

YOUTUBE_URL="rtmp://a.rtmp.youtube.com/live2"
KEY="****"

VIDEO_SOURCE="/mnt/disk1/test/****"

AUDIO_SOURCE="****"

ffmpeg \
    -re -f lavfi -i "movie=filename=$VIDEO_SOURCE:loop=0, setpts=N/(FRAME_RATE*TB)" \
    -thread_queue_size 512 -i "$AUDIO_SOURCE" \
    -map 0:v:0 -map 1:a:0 \
    -map_metadata:g 1:g \
    -vcodec libx264 -pix_fmt yuv420p -preset $QUAL -r $FPS -g $(($FPS * 2)) -b:v $VBR \
    -acodec libmp3lame -ar 44100 -threads 4 -qscale:v 3 -b:a 320000 -bufsize 512k \
    -report -loglevel fatal -nostats  \
    -f flv "$YOUTUBE_URL/$KEY"


    


    The stream works fine, however after a seemingly random period of time, I get a conversion failed error

    


    first after 64 hours of streaming
second after 12 hours of streaming
third after 8 hours of streaming

    


    The server itsef is fine cpu and memory usage are extremly low and there are no spikes

    


    from what i can guess the error has something to do with libx264 judging by the error logs, although I do not really know. After some guidance on what to do try next. Here is the tail end of the ffmpeg log report

    


    [libx264 @ 0xaaab23ad3e30] frame=1351975 QP=16.89 NAL=2 Slice:P Poc:14  I:6461 P:1224 SKIP:475  size=26602 bytes
av_interleaved_write_frame(): Broken pipe
No more output streams to write to, finishing.
[libx264 @ 0xaaab23ad3e30] frame=1351976 QP=17.90 NAL=2 Slice:B Poc:10  I:2395 P:3322 SKIP:2443 size=20127 bytes
[libx264 @ 0xaaab23ad3e30] frame=1351977 QP=17.89 NAL=0 Slice:B Poc:12  I:1848 P:3235 SKIP:3077 size=17313 bytes
[libx264 @ 0xaaab23ad3e30] frame=1351978 QP=15.65 NAL=2 Slice:P Poc:22  I:6458 P:1171 SKIP:531  size=26073 bytes
[libx264 @ 0xaaab23ad3e30] frame=1351979 QP=17.19 NAL=2 Slice:B Poc:18  I:2766 P:3514 SKIP:1880 size=19633 bytes
[libx264 @ 0xaaab23ad3e30] frame=1351980 QP=18.35 NAL=0 Slice:B Poc:16  I:1233 P:2876 SKIP:4051 size=11769 bytes
[libx264 @ 0xaaab23ad3e30] frame=1351981 QP=17.28 NAL=0 Slice:B Poc:20  I:822  P:3197 SKIP:4141 size=10699 bytes
[libx264 @ 0xaaab23ad3e30] frame=1351982 QP=17.08 NAL=2 Slice:P Poc:30  I:6351 P:1443 SKIP:366  size=29120 bytes
[libx264 @ 0xaaab23ad3e30] frame=1351983 QP=17.29 NAL=2 Slice:B Poc:26  I:2060 P:4211 SKIP:1889 size=18465 bytes
[libx264 @ 0xaaab23ad3e30] frame=1351984 QP=18.00 NAL=0 Slice:B Poc:24  I:472  P:3225 SKIP:4463 size=8893 bytes
[libx264 @ 0xaaab23ad3e30] frame=1351985 QP=17.98 NAL=0 Slice:B Poc:28  I:1339 P:3681 SKIP:3140 size=13378 bytes
[libx264 @ 0xaaab23ad3e30] frame=1351986 QP=15.57 NAL=2 Slice:P Poc:32  I:6270 P:1584 SKIP:306  size=33703 bytes
av_interleaved_write_frame(): Broken pipe
[libmp3lame @ 0xaaab23ac06f0] Trying to remove 47 more samples than there are in the queue
[flv @ 0xaaab23ad2ff0] Failed to update header with correct duration.
[flv @ 0xaaab23ad2ff0] Failed to update header with correct filesize.
Error writing trailer of rtmp://a.rtmp.youtube.com/live2/****: Broken pipe
frame=1351987 fps= 24 q=22.0 Lsize=37296521kB time=15:38:52.22 bitrate=5423.8kbits/s dup=0 drop=56332 speed=   1x    
video:35035969kB audio:2200479kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.161329%
Input file #0 (movie=filename=/mnt/disk1/test/****.mp4:loop=0, setpts=N/(FRAME_RATE*TB)):
  Input stream #0:0 (video): 1408319 packets read (4380435417600 bytes); 1408319 frames decoded; 
  Total: 1408319 packets (4380435417600 bytes) demuxed
Input file #1 (https://****.mp3):
  Input stream #1:0 (audio): 2156470 packets read (901316441 bytes); 2156470 frames decoded (2484253440 samples); 
  Total: 2156470 packets (901316441 bytes) demuxed
Output file #0 (rtmp://a.rtmp.youtube.com/live2/****):
  Output stream #0:0 (video): 1351987 frames encoded; 1351976 packets muxed (35876832486 bytes); 
  Output stream #0:1 (audio): 2156470 frames encoded (2484253440 samples); 2156469 packets muxed (2253290057 bytes); 
  Total: 3508445 packets (38130122543 bytes) muxed
3564789 frames successfully decoded, 0 decoding errors
[AVIOContext @ 0xaaab23ac4ef0] Statistics: 0 seeks, 3823215 writeouts
[rtmp @ 0xaaab23dab6a0] UnPublishing stream...
[rtmp @ 0xaaab23dab6a0] Deleting stream...
[libx264 @ 0xaaab23ad3e30] frame I:53166 Avg QP:16.31  size: 39514
[libx264 @ 0xaaab23ad3e30] frame P:500115 Avg QP:17.79  size: 32831
[libx264 @ 0xaaab23ad3e30] frame B:798706 Avg QP:19.67  size: 21732
[libx264 @ 0xaaab23ad3e30] consecutive B-frames: 13.9% 15.2% 20.2% 50.7%
[libx264 @ 0xaaab23ad3e30] mb I  I16..4: 45.9% 44.7%  9.4%
[libx264 @ 0xaaab23ad3e30] mb P  I16..4: 40.6% 37.1%  2.2%  P16..4: 16.5%  0.0%  0.0%  0.0%  0.0%    skip: 3.7%
[libx264 @ 0xaaab23ad3e30] mb B  I16..4: 16.3% 16.2%  0.2%  B16..8: 25.0%  0.0%  0.0%  direct:19.7%  skip:22.5%  L0:48.7% L1:48.4% BI: 2.9%
[libx264 @ 0xaaab23ad3e30] 8x8 transform intra:47.5% inter:31.9%
[libx264 @ 0xaaab23ad3e30] coded y,uvDC,uvAC intra: 15.8% 78.7% 25.0% inter: 2.0% 60.3% 1.8%
[libx264 @ 0xaaab23ad3e30] i16 v,h,dc,p: 50% 20%  9% 21%
[libx264 @ 0xaaab23ad3e30] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 19% 16% 31%  4%  7%  5%  5%  6%  6%
[libx264 @ 0xaaab23ad3e30] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 36% 20% 33%  2%  2%  2%  1%  2%  2%
[libx264 @ 0xaaab23ad3e30] i8c dc,h,v,p: 29% 18% 18% 35%
[libx264 @ 0xaaab23ad3e30] Weighted P-Frames: Y:3.0% UV:2.2%
[libx264 @ 0xaaab23ad3e30] kb/s:5095.01
[AVIOContext @ 0xaaab22460eb0] Statistics: 42281852862 bytes read, 2731 seeks
[AVIOContext @ 0xaaab23ac4de0] Statistics: 901390389 bytes read, 0 seeks
Conversion failed!


    


  • Adding multiple audio files to video with different start times with ffmpeg: Error initializing complex filters: Invalid argument

    19 January 2024, by fullStackChris

    Here's my command:

    


    ffmpeg -i ./video/super-simple.mp4 -i ./audio/super-simple/1.wav -i ./audio/super-simple/2.wav -filter_complex \
"[1]adelay=2480|2480[a1]; \
 [2]adelay=8919|8919[a2]; \
 [0][a1][a2]amix=3" -c:v copy -c:a aac -strict experimental ./video/super-simple.mp4.final.mp4


    


    However I get the following output, ending with a cryptic error:

    


    [aist#1:0/pcm_f32le @ 0x7fe723010e00] Guessed Channel Layout: mono
Input #1, wav, from '/audio/super-simple/1.wav':
  Duration: 00:00:04.44, bitrate: 1031 kb/s
  Stream #1:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 32000 Hz, 1 channels, flt, 1024 kb/s
[aist#2:0/pcm_f32le @ 0x7fe72300f4c0] Guessed Channel Layout: mono
Input #2, wav, from '/audio/super-simple/2.wav':
  Duration: 00:00:03.95, bitrate: 1032 kb/s
  Stream #2:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 32000 Hz, 1 channels, flt, 1024 kb/s
[fc#0 @ 0x7fe723004340] Stream specifier '' in filtergraph description [1]adelay=2480|2480[a1];  [2]adelay=8919|8919[a2];  [0][a1][a2]amix=3 matches no streams.
Error initializing complex filters: Invalid argument


    


    What is going on here? I've been reading stackoverflow for hours and I beleive this syntax is correct, but apparently not. Do I need to specify the video somehow for [0] to be recognized, or is that implicit since the video is my first input?

    


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