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Stereo master soundtrack
17 octobre 2011, par
Mis à jour : Octobre 2011
Langue : English
Type : Audio
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Elephants Dream - Cover of the soundtrack
17 octobre 2011, par
Mis à jour : Octobre 2011
Langue : English
Type : Image
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#7 Ambience
16 octobre 2011, par
Mis à jour : Juin 2015
Langue : English
Type : Audio
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#6 Teaser Music
16 octobre 2011, par
Mis à jour : Février 2013
Langue : English
Type : Audio
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#5 End Title
16 octobre 2011, par
Mis à jour : Février 2013
Langue : English
Type : Audio
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#3 The Safest Place
16 octobre 2011, par
Mis à jour : Février 2013
Langue : English
Type : Audio
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Binaires obligatoires FFMpeg : encodeur principal, permet de transcoder presque tous les types de fichiers vidéo et sonores dans les formats lisibles sur Internet. CF ce tutoriel pour son installation ; Oggz-tools : outils d’inspection de fichiers ogg ; Mediainfo : récupération d’informations depuis la plupart des formats vidéos et sonores ;
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Utilisation et configuration du script
19 janvier 2011, parInformations spécifiques à la distribution Debian
Si vous utilisez cette distribution, vous devrez activer les dépôts "debian-multimedia" comme expliqué ici :
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Sur d’autres sites (10937)
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FFmpeg stream stops after a certain time
7 avril 2021, par AnarnoWe have a little Nodejs app, which starts a stream process, with a
child_process.spawn. On the client-side, we have an HTML5-canvas element, which records the video datanew MediaRecorder(canvas.captureStream(30), config), then this client sends its data to our Nodejs server over a WebSocket connection. We using FFmpeg for video encoding and decoding, then we send the data to our 3-rd party service (MUX), which accepts the stream and broadcasts them. Sadly the process continuously loses its fps, and after in general 1 minute, stops with an interesting error code. (when we save the video result locally instead of streaming viartmps, it works perfectly.

*The whole system is in docker.


The error :


stderr: [tls @ 0x7f998e7bca40] Error in the pull function.
Our_app_logs: | av_interleaved_write_frame(): I/O error 
Our_app_logs: | [flv @ 0x7f998eeb1680] Failed to update header with correct duration.
Our_app_logs: | [flv @ 0x7f998eeb1680] Failed to update header with correct filesize.
Our_app_logs: | Error writing trailer of rtmps://global-live.mux.com/app/94e85197-78a3-f092-3437-03d93aba74e0: I/O error
Our_app_logs: | <buffer 5b="5b" 74="74" 6c="6c" 73="73" 20="20" 40="40" 30="30" 78="78" 37="37" 66="66" 39="39" 38="38" 65="65" 62="62" 63="63" 61="61" 34="34" 5d="5d" 45="45" 72="72" 6f="6f" 69="69" 6e="6e" 68="68" 70="70" 75="75" 2e="2e">
Our_app_logs: | stderr: frame= 1478 fps= 25 q=23.0 Lsize= 
 402kB time=00:01:02.89 bitrate= 52.4kbits/s speed=1.05x
Our_app_logs: | video:369kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 9.034639%
Our_app_logs: | <buffer 66="66" 72="72" 61="61" 6d="6d" 65="65" 3d="3d" 20="20" 31="31" 34="34" 37="37" 38="38" 70="70" 73="73" 32="32" 35="35" 71="71" 33="33" 2e="2e" 30="30" 4c="4c" 69="69" 7a="7a" 6b="6b" 42="42" 74="74">
Our_app_logs: | stderr: [tls @ 0x7f998e7bca40] <buffer 5b="5b" 6c="6c" 73="73" 20="20" 40="40" 30="30" 78="78" 37="37" 66="66" 39="39" 38="38" 65="65" 62="62" 63="63" 61="61" 34="34" 5d="5d"> 
Our_app_logs: | stderr: The specified session has been invalidated for some reason.
Our_app_logs: | <buffer 54="54" 68="68" 65="65" 20="20" 73="73" 70="70" 63="63" 69="69" 66="66" 64="64" 6f="6f" 6e="6e" 61="61" 62="62" 76="76" 6c="6c" 74="74" 72="72" 6d="6d">
Our_app_logs: | stderr: Last message repeated 1 times 
Our_app_logs: | <buffer 20="20" 4c="4c" 61="61" 73="73" 74="74" 6d="6d" 65="65" 67="67" 72="72" 70="70" 64="64" 31="31" 69="69" 0a="0a"> 
Our_app_logs: | stderr: [libx264 @ 0x7f998e790080] <buffer 5b="5b" 6c="6c" 69="69" 62="62" 78="78" 32="32" 36="36" 34="34" 20="20" 40="40" 30="30" 37="37" 66="66" 39="39" 38="38" 65="65" 5d="5d">
Our_app_logs: | stderr: frame I:13 Avg QP: 5.39 size: 
2478
Our_app_logs: | <buffer 66="66" 72="72" 61="61" 6d="6d" 65="65" 20="20" 49="49" 3a="3a" 31="31" 33="33" 41="41" 76="76" 67="67" 51="51" 50="50" 35="35" 2e="2e" 39="39" 73="73" 69="69" 7a="7a" 32="32" 34="34" 37="37" 38="38" 0a="0a">
Our_app_logs: | stderr: [libx264 @ 0x7f998e790080] <buffer 5b="5b" 6c="6c" 69="69" 62="62" 78="78" 32="32" 36="36" 34="34" 20="20" 40="40" 30="30" 37="37" 66="66" 39="39" 38="38" 65="65" 5d="5d">
Our_app_logs: | stderr: frame P:1465 Avg QP:13.51 size: 
 235
Our_app_logs: | <buffer 66="66" 72="72" 61="61" 6d="6d" 65="65" 20="20" 50="50" 3a="3a" 31="31" 34="34" 36="36" 35="35" 41="41" 76="76" 67="67" 51="51" 33="33" 2e="2e" 73="73" 69="69" 7a="7a" 32="32" 0a="0a">
Our_app_logs: | stderr: [libx264 @ 0x7f998e790080] <buffer 5b="5b" 6c="6c" 69="69" 62="62" 78="78" 32="32" 36="36" 34="34" 20="20" 40="40" 30="30" 37="37" 66="66" 39="39" 38="38" 65="65" 5d="5d">
Our_app_logs: | stderr: mb I I16..4: 99.2% 0.1% 0.7% 
Our_app_logs: | <buffer 6d="6d" 62="62" 20="20" 49="49" 31="31" 36="36" 2e="2e" 34="34" 3a="3a" 39="39" 32="32" 25="25" 30="30" 37="37" 0a="0a"> 
Our_app_logs: | stderr: [libx264 @ 0x7f998e790080] <buffer 5b="5b" 6c="6c" 69="69" 62="62" 78="78" 32="32" 36="36" 34="34" 20="20" 40="40" 30="30" 37="37" 66="66" 39="39" 38="38" 65="65" 5d="5d">
Our_app_logs: | stderr: mb P I16..4: 0.3% 0.0% 0.0% P16..4: 0.1% 0.0% 0.0% 0.0% 0.0% skip:99.6%
Our_app_logs: | <buffer 6d="6d" 62="62" 20="20" 50="50" 49="49" 31="31" 36="36" 2e="2e" 34="34" 3a="3a" 30="30" 33="33" 25="25">
Our_app_logs: | stderr: [libx264 @ 0x7f998e790080] <buffer 5b="5b" 6c="6c" 69="69" 62="62" 78="78" 32="32" 36="36" 34="34" 20="20" 40="40" 30="30" 37="37" 66="66" 39="39" 38="38" 65="65" 5d="5d">
Our_app_logs: | stderr: 8x8 transform intra:0.3% inter:17.3%
Our_app_logs: | <buffer 38="38" 78="78" 20="20" 74="74" 72="72" 61="61" 6e="6e" 73="73" 66="66" 6f="6f" 6d="6d" 69="69" 3a="3a" 30="30" 2e="2e" 33="33" 25="25" 65="65" 31="31" 37="37" 0a="0a">
Our_app_logs: | stderr: [libx264 @ 0x7f998e790080] <buffer 5b="5b" 6c="6c" 69="69" 62="62" 78="78" 32="32" 36="36" 34="34" 20="20" 40="40" 30="30" 37="37" 66="66" 39="39" 38="38" 65="65" 5d="5d">
Our_app_logs: | stderr: coded y,uvDC,uvAC intra: 1.4% 6.9% 
4.7% inter: 0.0% 0.0% 0.0%
Our_app_logs: | <buffer 63="63" 6f="6f" 64="64" 65="65" 20="20" 79="79" 2c="2c" 75="75" 76="76" 44="44" 43="43" 41="41" 69="69" 6e="6e" 74="74" 72="72" 61="61" 3a="3a" 31="31" 2e="2e" 34="34" 25="25" 36="36" 39="39" 37="37" 30="30">
Our_app_logs: | stderr: [libx264 @ 0x7f998e790080] <buffer 5b="5b" 6c="6c" 69="69" 62="62" 78="78" 32="32" 36="36" 34="34" 20="20" 40="40" 30="30" 37="37" 66="66" 39="39" 38="38" 65="65" 5d="5d">
Our_app_logs: | stderr: i16 v,h,dc,p: 90% 5% 5% 0%
Our_app_logs: | <buffer 69="69" 31="31" 36="36" 20="20" 76="76" 2c="2c" 68="68" 64="64" 63="63" 70="70" 3a="3a" 39="39" 30="30" 25="25" 35="35" 0a="0a">
Our_app_logs: | stderr: [libx264 @ 0x7f998e790080] <buffer 5b="5b" 6c="6c" 69="69" 62="62" 78="78" 32="32" 36="36" 34="34" 20="20" 40="40" 30="30" 37="37" 66="66" 39="39" 38="38" 65="65" 5d="5d">
Our_app_logs: | stderr: i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 23% 
18% 51% 6% 0% 0% 0% 0% 3%
Our_app_logs: | <buffer 69="69" 38="38" 20="20" 76="76" 2c="2c" 68="68" 64="64" 63="63" 6c="6c" 72="72" 75="75" 3a="3a" 32="32" 33="33" 25="25" 31="31" 35="35" 36="36" 30="30">
Our_app_logs: | stderr: [libx264 @ 0x7f998e790080] <buffer 5b="5b" 6c="6c" 69="69" 62="62" 78="78" 32="32" 36="36" 34="34" 20="20" 40="40" 30="30" 37="37" 66="66" 39="39" 38="38" 65="65" 5d="5d">
Our_app_logs: | stderr: i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 33% 
25% 40% 0% 0% 0% 0% 0% 0%
Our_app_logs: | <buffer 69="69" 34="34" 20="20" 76="76" 2c="2c" 68="68" 64="64" 63="63" 6c="6c" 72="72" 75="75" 3a="3a" 33="33" 25="25" 32="32" 35="35" 30="30">
Our_app_logs: | stderr: [libx264 @ 0x7f998e790080] <buffer 5b="5b" 6c="6c" 69="69" 62="62" 78="78" 32="32" 36="36" 34="34" 20="20" 40="40" 30="30" 37="37" 66="66" 39="39" 38="38" 65="65" 5d="5d">
Our_app_logs: | stderr: i8c dc,h,v,p: 86% 7% 6% 0%
Our_app_logs: | <buffer 69="69" 38="38" 63="63" 20="20" 64="64" 2c="2c" 68="68" 76="76" 70="70" 3a="3a" 36="36" 25="25" 37="37" 30="30" 0a="0a">
Our_app_logs: | stderr: [libx264 @ 0x7f998e790080] <buffer 5b="5b" 6c="6c" 69="69" 62="62" 78="78" 32="32" 36="36" 34="34" 20="20" 40="40" 30="30" 37="37" 66="66" 39="39" 38="38" 65="65" 5d="5d">
Our_app_logs: | stderr: Weighted P-Frames: Y:0.1% UV:0.1% 
Our_app_logs: | <buffer 57="57" 65="65" 69="69" 67="67" 68="68" 74="74" 64="64" 20="20" 50="50" 2d="2d" 46="46" 72="72" 61="61" 6d="6d" 73="73" 3a="3a" 59="59" 30="30" 2e="2e" 31="31" 25="25" 55="55" 56="56" 0a="0a"> 
Our_app_logs: | stderr: [libx264 @ 0x7f998e790080] <buffer 5b="5b" 6c="6c" 69="69" 62="62" 78="78" 32="32" 36="36" 34="34" 20="20" 40="40" 30="30" 37="37" 66="66" 39="39" 38="38" 65="65" 5d="5d">
Our_app_logs: | stderr: kb/s:2041.23
Our_app_logs: | <buffer 6b="6b" 62="62" 2f="2f" 73="73" 3a="3a" 32="32" 30="30" 34="34" 31="31" 2e="2e" 33="33" 0a="0a">
Our_app_logs: | stderr: Conversion failed!
Our_app_logs: | <buffer 43="43" 6f="6f" 6e="6e" 76="76" 65="65" 72="72" 73="73" 69="69" 20="20" 66="66" 61="61" 6c="6c" 64="64" 21="21" 0a="0a">
Our_app_logs: | close, code: 1, signal: null
Our_app_logs: | from react application: 14203
Our_app_logs: | Status ok...
Our_app_logs: | Data ok...
Our_app_logs: | FFmpeg ok...
Our_app_logs: | Writeable ok... <buffer c4="c4" 81="81" 0e="0e" 11="11" 00="00" 01="01" 61="61" c7="c7" 80="80" 5b="5b" b6="b6" 72="72" 03="03" bc="bc" b7="b7" de="de" 59="59" 7f="7f" 3c="3c" 27="27" b3="b3" 87="87" b2="b2" e6="e6" 84="84" d0="d0" f0="f0" 02="02" 2d="2d" c0="c0" 08="08" 70="70"> undefined
Our_app_logs: | stderr: ffmpeg version 4.2.4 Copyright (c) 
2000-2020 the FFmpeg developers
Our_app_logs: | built with gcc 9.2.0 (Alpine 9.2.0)
Our_app_logs: | configuration: --prefix=/usr --enable-avresample --enable-avfilter --enable-gnutls --enable-gpl --enable-libass --enable-libmp3lame --enable-libvorbis --enable-libvpx --enable-libxvid --enable-libx264 --enable-libx265 --enable-libtheora --enable-libv4l2 --enable-postproc --enable-pic --enable-pthreads --enable-shared --enable-libxcb --disable-stripping --disable-static --disable-librtmp --enable-vaapi --enable-vdpau --enable-libopus --disable-debug
Our_app_logs: | <buffer 66="66" 6d="6d" 70="70" 65="65" 67="67" 20="20" 76="76" 72="72" 73="73" 69="69" 6f="6f" 6e="6e" 34="34" 2e="2e" 32="32" 43="43" 79="79" 68="68" 74="74" 28="28" 63="63" 29="29" 30="30" 2d="2d" 46="46">
Our_app_logs: | stderr: libavutil 56. 31.100 / 56. 31.100
Our_app_logs: | libavcodec 58. 54.100 / 58. 54.100 
Our_app_logs: | libavformat 58. 29.100 / 58. 29.100
Our_app_logs: | libavdevice 58. 8.100 / 58. 8.100
Our_app_logs: | libavfilter 7. 57.100 / 7. 57.100
Our_app_logs: | libavresample 4. 0. 0 / 4. 0. 0 
Our_app_logs: | libswscale 5. 5.100 / 5. 5.100 
Our_app_logs: | libswresample 3. 5.100 / 3. 5.100 
Our_app_logs: | libpostproc 55. 5.100 / 55. 5.100 
Our_app_logs: | <buffer 20="20" 6c="6c" 69="69" 62="62" 61="61" 76="76" 75="75" 74="74" 35="35" 36="36" 2e="2e" 33="33" 31="31" 30="30" 2f="2f" 0a="0a" 63="63" 6f="6f">
Our_app_logs: | stderr: [h264 @ 0x7f299f44f600] non-existing PPS 14 referenced
Our_app_logs: | Last message repeated 4 times
Our_app_logs: | [h264 @ 0x7f299f44f600] decode_slice_header error
Our_app_logs: | [h264 @ 0x7f299f44f600] non-existing PPS 14 referenced
Our_app_logs: | [h264 @ 0x7f299f44f600] decode_slice_header error
Our_app_logs: | [h264 @ 0x7f299f44f600] no frame!
Our_app_logs: | [h264 @ 0x7f299f44f600] non-existing PPS 14 referenced
Our_app_logs: | [h264 @ 0x7f299f44f600] decode_slice_header error
Our_app_logs: | <buffer 5b="5b" 68="68" 32="32" 36="36" 34="34" 20="20" 40="40" 30="30" 78="78" 37="37" 66="66" 39="39" 5d="5d" 6e="6e" 6f="6f" 2d="2d" 65="65" 69="69" 73="73" 74="74" 67="67" 50="50" 53="53" 31="31" 72="72">
Our_app_logs: | stderr: [h264 @ 0x7f299f44f600] non-existing PPS 14 referenced
Our_app_logs: | [h264 @ 0x7f299f44f600] decode_slice_header error
Our_app_logs: | [h264 @ 0x7f299f44f600] no frame!
Our_app_logs: | [h264 @ 0x7f299f44f600] non-existing PPS 14 referenced
Our_app_logs: | [h264 @ 0x7f299f44f600] decode_slice_header error
Our_app_logs: | [h264 @ 0x7f299f44f600] non-existing PPS 14 referenced
Our_app_logs: | [h264 @ 0x7f299f44f600] decode_slice_header error
Our_app_logs: | [h264 @ 0x7f299f44f600] no frame!
Our_app_logs: | [h264 @ 0x7f299f44f600] non-existing PPS 14 referenced
Our_app_logs: | [h264 @ 0x7f299f44f600] decode_slice_header error
Our_app_logs: | [h264 @ 0x7f299f44f600] non-existing PPS 14 referenced
Our_app_logs: | [h264 @ 0x7f299f44f600] decode_slice_header error
Our_app_logs: | [h264 @ 0x7f299f44f600] no frame!
Our_app_logs: | [h264 @ 0x7f299f44f600] non-existing PPS 14 referenced
Our_app_logs: | Last message repeated 5 times
Our_app_logs: | [h264 @ 0x7f299f44f600] decode_slice_header error
Our_app_logs: | [h264 @ 0x7f299f44f600] non-existing PPS 14 referenced
Our_app_logs: | [h264 @ 0x7f299f44f600] decode_slice_header error
Our_app_logs: | [h264 @ 0x7f299f44f600] no frame!
Our_app_logs: | [h264 @ 0x7f299f44f600] non-existing PPS 14 referenced
Our_app_logs: | [h264 @ 0x7f299f44f600] decode_slice_header error
Our_app_logs: | [h264 @ 0x7f299f44f600] non-existing PPS 14 referenced
Our_app_logs: | [h264 @ 0x7f299f44f600] decode_slice_header error
Our_app_logs: | [h264 @ 0x7f299f44f600] no frame!
Our_app_logs: | [h264 @ 0x7f299f44f600] non-existing PPS 14 referenced
Our_app_logs: | [h264 @ 0x7f299f44f600] decode_slice_headerOur_app_logs: | [h264 @ 0x7f299f44f600] non-existing PPS 14 referenced
Our_app_logs: | [h264 @ 0x7f299f44f600] decode_slice_header error
Our_app_logs: | [h264 @ 0x7f299f44f600] no frame!
Our_app_logs: | [h264 @ 0x7f299f44f600] non-existing PPS 14 referenced
Our_app_logs: | [h264 @ 0x7f299f44f600] decode_slice_header error
Our_app_logs: | [h264 @ 0x7f299f44f600] non-existing PPS 14 referenced
Our_app_logs: | [h264 @ 0x7f299f44f600] decode_slice_header error
Our_app_logs: | [h264 @ 0x7f299f44f600] no frame!
Our_app_logs: | [h264 @ 0x7f299f44f600] non-existing PPS 14 referenced
Our_app_logs: | [h264 @ 0x7f299f44f600] decode_slice_header error
Our_app_logs: | [h264 @ 0x7f299f44f600] non-existing PPS 14 referenced
Our_app_logs: | [h264 @ 0x7f299f44f600] decode_slice_header error
Our_app_logs: | [h264 @ 0x7f299f44f600] no frame!

</buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer>

The FFmpeg config :


const FFMPEG_CONFIG = [
 '-i',
 '-',

 // video codec config: low latency, adaptive bitrate
 // '-vcodec',
 // 'copy',
 '-c:v',
 'libx264',
 '-preset',
 'veryfast',
 '-tune',
 'zerolatency',

 // audio codec config: sampling frequency (11025, 22050, 44100), bitrate 64 kbits
 '-c:a',
 'aac',
 '-ar',
 '44100',
 '-b:a',
 '64k',

 //force to overwrite
 '-y',

 // used for audio sync
 '-use_wallclock_as_timestamps',
 '1',
 '-async',
 '1',

 //'-filter_complex', 'aresample=44100', // resample audio to 44100Hz, needed if input is not 44100
 //'-strict', 'experimental',
 '-bufsize',
 '1000',
 '-f',
 'flv',
];


The process :


const process = child_process.spawn('ffmpeg', [
 ...FFMPEG_CONFIG,
 // 'local.bin',
 url,
 ]);
 
 process.stderr.on('data', data => {
 console.log(`stderr: ${data}`, data);
 });

 process.stdin.on('error', e => {
 console.log('FFmpeg STDIN Error', e);
 });

 process.on('error', err => console.log(err));

 process.on('close', (code, signal) => {
 console.log(`close, code: ${code}, signal: ${signal}`);
 });


The writing :


if (!Buffer.isBuffer(data)) return;
if (!process.stdin.writable) return;
process.stdin.write(data);


-
When I append a silent audio (mp3) to an existing list of audio it garbles the final audio ?
6 février 2020, par MarieAfter several hours I have narrowed down the issue with the garbled audio to be the 2-seconds silence audio mp3 I am appending (I think I had produced it once with Wavelab)
However, I tried using ffmpeg according to a post to produce a similar 2 seconds audio but it too will corrupt/garble/chop voice in the final concatenation of audio files.
ffmpeg -f lavfi -i anullsrc=r=44100:cl=mono -t 2 -q:a 9 -acodec libmp3lame SILENCE_2sec.MP3I typically will have several audio files to concatenate together but for simplicity I have able to narrow it to a couple of files simplifying to the following script. A simple Windows batch file you should be able to use and reproduce the issue at your end.
rem
rem
SET EXE="S:\_BINS\FFmpeg 4.2.1 20200112\bin\ffmpeg.exe"
SET ROOTPATH=.\
SET IN_FILE="%ROOTPATH%MyList.txt"
ECHO file '%ROOTPATH%HELLO.mp3' > MyList.txt
ECHO file 'SILENCE_2sec.MP3' >> MyList.txt
SET OPTIONS= -f concat -safe 0 -i %IN_FILE% -c copy -y
SET OUT_FILE="%ROOTPATH%CONCATENATED_AUDIO_2.MP3"
SET INFO_FILE="INFO.TXT"
%EXE% %OPTIONS% %OUT_FILE% 1> %INFO_FILE% 2>&1
ECHO ======================== >> %INFO_FILE%
ECHO IN_FILE=%IN_FILE% >> %INFO_FILE%
ECHO EXE=%EXE% >> %INFO_FILE%
ECHO OPTIONS=%OPTIONS% >> %INFO_FILE%
ECHO ======================== >> %INFO_FILE%Here is the console info output from the ffmpeg, let me know if you need other output include ones from ffprobe
ffmpeg version git-2020-01-10-3d894db Copyright (c) 2000-2020 the FFmpeg developers
built with gcc 9.2.1 (GCC) 20191125
configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
libavutil 56. 38.100 / 56. 38.100
libavcodec 58. 65.103 / 58. 65.103
libavformat 58. 35.101 / 58. 35.101
libavdevice 58. 9.103 / 58. 9.103
libavfilter 7. 70.101 / 7. 70.101
libswscale 5. 6.100 / 5. 6.100
libswresample 3. 6.100 / 3. 6.100
libpostproc 55. 6.100 / 55. 6.100
[mp3 @ 000000000036af80] Estimating duration from bitrate, this may be inaccurate
Input #0, concat, from '.\MyList.txt':
Duration: N/A, start: 0.000000, bitrate: 32 kb/s
Stream #0:0: Audio: mp3, 24000 Hz, mono, fltp, 32 kb/s
Output #0, mp3, to '.\CONCATENATED_AUDIO_2.MP3':
Metadata:
TSSE : Lavf58.35.101
Stream #0:0: Audio: mp3, 24000 Hz, mono, fltp, 32 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Press [q] to stop, [?] for help
[mp3 @ 0000000000372d00] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 17280 >= 17255
size= 11kB time=00:00:02.73 bitrate= 33.2kbits/s speed=2.73e+03x
video:0kB audio:11kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.137446%
========================
IN_FILE=".\MyList.txt"
EXE="S:\_BINS\FFmpeg 4.2.1 20200112\bin\ffmpeg.exe"
OPTIONS= -f concat -safe 0 -i ".\MyList.txt" -c copy -y
========================I believe I am running FFmpeg 4.2.1, recently installed (20200112)
You may produce the HELLO.mp3 by saving the following link
https://translate.google.com.vn/translate_tts?en=UTF-8&q=Hello+&tl=en&client=tw-obFYI, I am still a novice of ffmpeg and using it more like a black box with the help I received in this very super forum.
Please be as explicit as you can with command line options on how I can fix this issue.
Thank you.Additional Hints Debugging :
If I append more files after the silence audio it seems that the silence audio impacts (garbles, chops) the previous audio.
You may try the following for the list of audio files input.ECHO file '%ROOTPATH%HELLO.mp3' > MyList.txt
ECHO file 'SILENCE_2sec.MP3' >> MyList.txt
ECHO file '%ROOTPATH%HELLO.mp3' >> MyList.txt
ECHO file '%ROOTPATH%HELLO.mp3' >> MyList.txtI typically add one or more silence file to derive a post silence effect after the actual audio. That’s my current logic. However if you have an alternative to appending a silence in the process of concatenating several audio files or appending x-seconds silence to an existing audio file. I can use that method as well from my coding.
Thank you.
-
How to concatenate 3 mp4 files using ffmpeg (facing error in resultant video) ?
5 février 2021, par Mayank ThapliyalI have 3 videos of mp4 format. They have same resolution (640 X 1280) but other properties like frame rate etc are different. I want to join them back to back.So I gave a check on internet and I used the following method


:: Create File List
echo file file1.mp4 > mylist.txt 
echo file file2.mp4 >> mylist.txt
echo file file3.mp4 >> mylist.txt

:: Concatenate Files
ffmpeg -f concat -i mylist.txt -c copy output.mp4


But unfortunately it did not worked.In the resultant video, file1 part got freezed, and audio of whole video shifted (no idea how).And other methods are also not working properly


I just want to join them back to back.Any idea how to do it ?


Edit :- I gave a check on the output of the ffmpeg (using pause command in bat and discovered the following. Maybe it may help regarding the issue)


C:\Users\Cascade_Games\Desktop\Cascade Empire\ffmpeg-4.3.1-2020-10-01-full_build\bin>ffmpeg -f concat -i mylist.txt -vcodec copy -acodec copy Mux1.mp4
ffmpeg version 4.3.1-2020-10-01-full_build-www.gyan.dev Copyright (c) 2000-2020 the FFmpeg developers
 built with gcc 10.2.0 (Rev3, 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-lzma --enable-libsnappy --enable-zlib --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libdav1d --enable-libzvbi --enable-librav1e --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --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 56. 51.100 / 56. 51.100
 libavcodec 58. 91.100 / 58. 91.100
 libavformat 58. 45.100 / 58. 45.100
 libavdevice 58. 10.100 / 58. 10.100
 libavfilter 7. 85.100 / 7. 85.100
 libswscale 5. 7.100 / 5. 7.100
 libswresample 3. 7.100 / 3. 7.100
 libpostproc 55. 7.100 / 55. 7.100
[mov,mp4,m4a,3gp,3g2,mj2 @ 000002a0474e6a40] Auto-inserting h264_mp4toannexb bitstream filter
Input #0, concat, from 'mylist.txt':
 Duration: N/A, start: -0.023220, bitrate: 2447 kb/s
 Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x640 [SAR 1:1 DAR 2:1], 2320 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc
 Metadata:
 handler_name : VideoHandle
 Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 127 kb/s
 Metadata:
 handler_name : SoundHandler
Output #0, mp4, to 'Mux1.mp4':
 Metadata:
 encoder : Lavf58.45.100
 Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x640 [SAR 1:1 DAR 2:1], q=2-31, 2320 kb/s, 30 fps, 30 tbr, 15360 tbn, 15360 tbc
 Metadata:
 handler_name : VideoHandle
 Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 127 kb/s
 Metadata:
 handler_name : SoundHandler
Stream mapping:
 Stream #0:0 -> #0:0 (copy)
 Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
[mov,mp4,m4a,3gp,3g2,mj2 @ 000002a04750d700] Auto-inserting h264_mp4toannexb bitstream filter
[mov,mp4,m4a,3gp,3g2,mj2 @ 000002a0474ef040] Auto-inserting h264_mp4toannexb bitstream filter
[mp4 @ 000002a0478e09c0] Non-monotonous DTS in output stream 0:1; previous: 30282976, current: 27826977; changing to 30282977. This may result in incorrect timestamps in the output file.
[mp4 @ 000002a0478e09c0] Non-monotonous DTS in output stream 0:1; previous: 30282977, current: 27828129; changing to 30282978. This may result in incorrect timestamps in the output file.
(Same Thing was getting repeated,hence I deleted it)
[mp4 @ 000002a0478e09c0] Non-monotonous DTS in output stream 0:1; previous: 30283209, current: 28095393; changing to 30283210. This may result in incorrect timestamps in the output file.
[mp4 @ 000002a0478e09c0] Non-monotonous DTS in output stream 0:1; previous: 30283210, current: 28096545; changing to 30283211. This may result in incorrect timestamps in the output file.
[mp4 @ 000002a0478e09c0] aac bitstream error
 Last message repeated 234 times
frame=18937 fps=11438 q=-1.0 Lsize= 49051kB time=00:11:26.69 bitrate= 585.2kbits/s speed= 415x
video:40720kB audio:7653kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.401324%


Edit :-
Info of all files (I have changed the video name to 1.mp4,2.mp4,3.mp4)


C:\Users\Cascade_Games\Desktop\Cascade Empire\ffmpeg-4.3.1-2020-10-01-full_build\bin>ffmpeg -i 1.mp4 -i 2.mp4 -i 3.mp4
ffmpeg version 4.3.1-2020-10-01-full_build-www.gyan.dev Copyright (c) 2000-2020 the FFmpeg developers
 built with gcc 10.2.0 (Rev3, 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-lzma --enable-libsnappy --enable-zlib --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libdav1d --enable-libzvbi --enable-librav1e --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --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 56. 51.100 / 56. 51.100
 libavcodec 58. 91.100 / 58. 91.100
 libavformat 58. 45.100 / 58. 45.100
 libavdevice 58. 10.100 / 58. 10.100
 libavfilter 7. 85.100 / 7. 85.100
 libswscale 5. 7.100 / 5. 7.100
 libswresample 3. 7.100 / 3. 7.100
 libpostproc 55. 7.100 / 55. 7.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '1.mp4':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2avc1mp41
 encoder : Lavf58.45.100
 Duration: 00:00:05.27, start: 0.000000, bitrate: 2337 kb/s
 Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x640 [SAR 1:1 DAR 2:1], 2320 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
 Metadata:
 handler_name : VideoHandle
 Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 127 kb/s (default)
 Metadata:
 handler_name : SoundHandler
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from '2.mp4':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2avc1mp41
 encoder : Lavf58.45.100
 Duration: 00:10:25.70, start: 0.000000, bitrate: 616 kb/s
 Stream #1:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x640 [SAR 1:1 DAR 2:1], 511 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
 Metadata:
 handler_name : VideoHandler
 Stream #1:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, mono, fltp, 96 kb/s (default)
 Metadata:
 handler_name : SoundHandle
Input #2, mov,mp4,m4a,3gp,3g2,mj2, from '3.mp4':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2avc1mp41
 encoder : Lavf58.45.100
 Duration: 00:00:08.50, start: 0.000000, bitrate: 447 kb/s
 Stream #2:0(und): Video: h264 (High 4:4:4 Predictive) (avc1 / 0x31637661), yuv444p, 1280x640 [SAR 1:1 DAR 2:1], 228 kb/s, 2 fps, 2 tbr, 16384 tbn, 4 tbc (default)
 Metadata:
 handler_name : VideoHandler
 Stream #2:1(und): Audio: mp3 (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 319 kb/s (default)
 Metadata:
 handler_name : SoundHandler


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