Recherche avancée
Autres articles (59)
-
Gestion des droits de création et d’édition des objets
8 février 2011, parPar défaut, beaucoup de fonctionnalités sont limitées aux administrateurs mais restent configurables indépendamment pour modifier leur statut minimal d’utilisation notamment : la rédaction de contenus sur le site modifiables dans la gestion des templates de formulaires ; l’ajout de notes aux articles ; l’ajout de légendes et d’annotations sur les images ;
-
Supporting all media types
13 avril 2011, parUnlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)
-
Dépôt de média et thèmes par FTP
31 mai 2013, parL’outil MédiaSPIP traite aussi les média transférés par la voie FTP. Si vous préférez déposer par cette voie, récupérez les identifiants d’accès vers votre site MédiaSPIP et utilisez votre client FTP favori.
Vous trouverez dès le départ les dossiers suivants dans votre espace FTP : config/ : dossier de configuration du site IMG/ : dossier des média déjà traités et en ligne sur le site local/ : répertoire cache du site web themes/ : les thèmes ou les feuilles de style personnalisées tmp/ : dossier de travail (...)
Sur d’autres sites (8180)
-
Getting a lot of Tail Silence when combining an image and audio into mp4 movie
1er avril 2023, par MeryanAs it can be seen from this snapshot the audio HELLO.mp3 combined with bitmap HELLO.jpg produced a movie HELLO_aac.mp4 that has a huge amount of tail silence




The command line I was helped to put together is the following


======================== 
IN_FILES=-i ".\HELLO.JPG" -i ".\HELLO.MP3" 
OUT_FILE=".\HELLO_aac.MP4" 
EXE="S:\_BINS\FFmpeg 4.2.1 20200112\bin\ffmpeg.exe" 
OPTIONS= -loop 1 -i ".\HELLO.JPG" -i ".\HELLO.MP3" -vf "scale=-1:1080,pad=1920:1080:(1920-iw)/2:(1080-ih)/2,setsar=1" -c:v libx264 -profile:v main -pix_fmt yuv420p -r 24 -video_track_timescale 24000 -c:a aac -shortest -y ".\HELLO_aac.MP4" 
======================== 



Here is the captured output from FFmpeg


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
Input #0, image2, from '.\HELLO.JPG':
 Duration: 00:00:00.04, start: 0.000000, bitrate: 23923 kb/s
 Stream #0:0: Video: mjpeg (Baseline), yuvj420p(pc, bt470bg/unknown/unknown), 1600x1200 [SAR 120:120 DAR 4:3], 25 fps, 25 tbr, 25 tbn, 25 tbc
[mp3 @ 000002019015d4c0] Estimating duration from bitrate, this may be inaccurate
Input #1, mp3, from '.\HELLO.MP3':
 Metadata:
 genre : Blues
 id3v2_priv.XMP : <?xpacket begin="\xef\xbb\xbf" id="W5M0MpCehiHzreSzNTczkc9d"?>\x0a\x0a \x0a s
 Stream #1:0: Audio: mp3, 24000 Hz, mono, fltp, 32 kb/s
Stream mapping:
 Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264))
 Stream #1:0 -> #0:1 (mp3 (mp3float) -> aac (native))
Press [q] to stop, [?] for help
[swscaler @ 0000020190b10380] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0000020190b10380] Warning: data is not aligned! This can lead to a speed loss
[libx264 @ 0000020190759300] using SAR=1/1
[libx264 @ 0000020190759300] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0000020190759300] profile Main, level 4.0, 4:2:0, 8-bit
[libx264 @ 0000020190759300] 264 - core 158 - H.264/MPEG-4 AVC codec - Copyleft 2003-2019 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x1:0x111 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=34 lookahead_threads=5 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=24 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 '.\HELLO_aac.MP4':
 Metadata:
 encoder : Lavf58.35.101
 Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p(progressive), 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 24 fps, 24k tbn, 24 tbc
 Metadata:
 encoder : Lavc58.65.103 libx264
 Side data:
 cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
 Stream #0:1: Audio: aac (LC) (mp4a / 0x6134706D), 24000 Hz, mono, fltp, 69 kb/s
 Metadata:
 encoder : Lavc58.65.103 aac
frame= 69 fps=0.0 q=0.0 size= 0kB time=00:00:00.00 bitrate=N/A dup=0 drop=1 speed= 0x 
frame= 97 fps=0.0 q=-1.0 Lsize= 128kB time=00:00:03.91 bitrate= 267.1kbits/s dup=0 drop=2 speed=5.04x 
video:119kB audio:6kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.208101%
[libx264 @ 0000020190759300] frame I:1 Avg QP:12.88 size:103994
[libx264 @ 0000020190759300] frame P:24 Avg QP:14.05 size: 224
[libx264 @ 0000020190759300] frame B:72 Avg QP:12.67 size: 160
[libx264 @ 0000020190759300] consecutive B-frames: 1.0% 0.0% 0.0% 99.0%
[libx264 @ 0000020190759300] mb I I16..4: 61.7% 0.0% 38.3%
[libx264 @ 0000020190759300] mb P I16..4: 0.1% 0.0% 0.0% P16..4: 0.5% 0.1% 0.0% 0.0% 0.0% skip:99.3%
[libx264 @ 0000020190759300] mb B I16..4: 0.0% 0.0% 0.0% B16..8: 1.6% 0.0% 0.0% direct: 0.0% skip:98.4% L0:81.1% L1:18.9% BI: 0.0%
[libx264 @ 0000020190759300] coded y,uvDC,uvAC intra: 34.5% 17.3% 15.6% inter: 0.0% 0.1% 0.0%
[libx264 @ 0000020190759300] i16 v,h,dc,p: 70% 19% 7% 3%
[libx264 @ 0000020190759300] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 40% 22% 12% 4% 5% 5% 3% 5% 4%
[libx264 @ 0000020190759300] i8c dc,h,v,p: 80% 8% 10% 2%
[libx264 @ 0000020190759300] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0000020190759300] ref P L0: 97.6% 0.3% 1.5% 0.6%
[libx264 @ 0000020190759300] ref B L0: 1.8% 98.2%
[libx264 @ 0000020190759300] ref B L1: 99.9% 0.1%
[libx264 @ 0000020190759300] kb/s:239.28
[aac @ 000002019075bf40] Qavg: 8004.814
======================== 


I have also tried the following command line


"S:\_BINS\ffmpeg-2023-03-20\bin\ffmpeg.exe" -loop 1 -i "HELLO.JPG" -i "HELLO.MP3" -c:v libx264 -tune stillimage -c:a aac -b:a 192k -pix_fmt yuv420p -y -shortest "HELLO_aac.mp4" 


With similar long dead tail silence ???


-
Ffmpeg configuration to stream the frames of my webcam
6 juillet 2023, par RidwengI'm trying to build a server in NodeJs to stream in RTSP my webcam using Angular to retrieve the frames and connecting using websockets. The server side is using "express-ws" module to create the Websocket.


I was successfull in sending the frames from the webcam to the server in base64, the server is receiving these messages from a function on interval of (1000 / 30)ms.


The issue relies on the implementation of my Ffmpeg child process. I retrieve the message and convert it into a buffer to then write this in the function of Ffmpeg.


My current implementation is this one :


const { spawn } = require('child_process');
exports.stream = (ws ,req) => {
 try{
 const mess = `connection from: ${req._remoteAddress} at ${req._startTime}.`
 const initialMess =`Started ${mess}`
 ws.uuid = uuidv4()
 console.log(initialMess)

 ws.on('message', function incoming(message) {
 message = JSON.parse(message)
 console.log(`Res: ${message.width} x ${message.height}`);
 const ffmpeg = spawn('ffmpeg', [
 '-f', 'rawvideo',
 '-pixel_format', 'rgb24',
 '-video_size', `${message.width}x${message.height}`,
 '-framerate', `${message.framerate}`,
 '-i', '-',
 '-codec:v', 'libx264',
 '-preset', 'ultrafast',
 '-tune', 'zerolatency',
 '-f', 'rtsp',
 'rtsp://127.0.0.1:554/rtsp/stream',
 ]);
 const base64Data = message.video;
 const videoData = Buffer.from(base64Data, 'base64');

 ffmpeg.stdin.write(videoData);
 ffmpeg.stdin.end();
 
 ffmpeg.stderr.on('data', (data) => {
 console.error(`FFmpeg : ${data}`);
 });

 ffmpeg.on('exit', (code, signal) => {
 if (dev) console.log(`FFmpeg process exited with code ${code} and signal ${signal}`);
 
 // Close the WebSocket connection
 ws.close();
 });
 });
 ws.on('close', () => {
 const finalMess = `Stopped ${mess}`
 rem(ws.uuid)
 console.log(finalMess)
 })
 }catch(err){
 console.log(err)
 }
}


In terms of the message received, this is the Angular side sending the message :


const imageData = this.canvas.toDataURL('image/jpeg');
socket.send(JSON.stringify({video: imageData, width: this.canvas.width, height: this.canvas.height, framerate: interval }));


The interval variable is the divisor of the interval that is triggering the function (in this case 30).


I'm currently receiving the error message from Ffmpeg :


ffmpeg version 6.0 Copyright (c) 2000-2023 the FFmpeg developers
 built with Apple clang version 14.0.3 (clang-1403.0.22.14.1)

FFmpeg : configuration: --prefix=/opt/homebrew/Cellar/ffmpeg/6.0 --enable-shared --enable-pthreads --enable-version3 --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libaribb24 --enable-libbluray --enable-libdav1d --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librist --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libsvtav1 --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-videotoolbox --enable-audiotoolbox --enable-neon
 libavutil 58. 2.100 / 58. 2.100
 libavcodec 60. 3.100 / 60. 3.100
 libavformat 60. 3.100 / 60. 3.100
 libavdevice 60. 1.100 / 60. 1.100
 libavfilter 9. 3.100 / 9. 3.100
 libswscale 7. 1.100 / 7. 1.100
 libswresample 4. 10.100 / 4. 10.100
 libpostproc 57. 1.100 / 57. 1.100

FFmpeg : [rawvideo @ 0x150005ff0] Packet corrupt (stream = 0, dts = 0).

FFmpeg : Input #0, rawvideo, from 'fd:':
 Duration: N/A, start: 0.000000, bitrate: 221184 kb/s
 Stream #0:0: Video: rawvideo (RGB[24] / 0x18424752), rgb24, 640x480, 221184 kb/s, 30 tbr, 30 tbn

FFmpeg : Stream mapping:
 Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264))

FFmpeg : fd:: corrupt input packet in stream 0
[rawvideo @ 0x14ef24290] Invalid buffer size, packet size 76343 < expected frame_size 921600

FFmpeg : Error while decoding stream #0:0: Invalid argument

FFmpeg : [libx264 @ 0x14ef25a20] using cpu capabilities: ARMv8 NEON

FFmpeg : [libx264 @ 0x14ef25a20] profile High 4:4:4 Predictive, level 3.0, 4:4:4, 8-bit

FFmpeg : [libx264 @ 0x14ef25a20] 264 - core 164 r3095 baee400 - H.264/MPEG-4 AVC codec - Copyleft 2003-2022 - 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=7 lookahead_threads=7 sliced_threads=1 slices=7 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=crf mbtree=0 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=0

FFmpeg : [tcp @ 0x1500078a0] Connection to tcp://127.0.0.1:554?timeout=0 failed: Connection refused
[out#0/rtsp @ 0x14ef24b00] Could not write header (incorrect codec parameters ?): Connection refused

FFmpeg : [vost#0:0/libx264 @ 0x14ef256d0] Error initializing output stream: 

FFmpeg : Conversion failed!

FFmpeg process exited with code 1 and signal null


This is the reason I believe the issue relies on the configuration of Ffmpeg and how to set it for this case. It would be great to being able to play this RTSP link in my VLC to conclude it as successfull.


I would apreciate any suggestions or guidence.
Thanks in advance.


-
ffmpeg streaming via rtp reorders streams
19 juin 2023, par konovificationI'm streaming a video using
ffmpeg -i bbb.mp4 -c:v copy -c:a copy -f rtp_mpegts "rtp://239.1.1.1:8000". The command line output is :

ffmpeg version 4.3.6-0+deb11u1 Copyright (c) 2000-2023 the FFmpeg developers
 built with gcc 10 (Debian 10.2.1-6)
 configuration: --prefix=/usr --extra-version=0+deb11u1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libdav1d --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librabbitmq --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opencl --enable-opengl --enable-sdl2 --enable-pocketsphinx --enable-libmfx --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
 WARNING: library configuration mismatch
 avcodec configuration: --prefix=/usr --extra-version=0+deb11u1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libdav1d --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librabbitmq --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opencl --enable-opengl --enable-sdl2 --enable-pocketsphinx --enable-libmfx --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared --enable-version3 --disable-doc --disable-programs --enable-libaribb24 --enable-liblensfun --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libtesseract --enable-libvo_amrwbenc
 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
 libavresample 4. 0. 0 / 4. 0. 0
 libswscale 5. 7.100 / 5. 7.100
 libswresample 3. 7.100 / 3. 7.100
 libpostproc 55. 7.100 / 55. 7.100
Guessed Channel Layout for Input Stream #0.1 : 5.1
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'bbb.mp4':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2avc1mp41
 title : Big Buck Bunny, Sunflower version
 artist : Blender Foundation 2008, Janus Bager Kristensen 2013
 composer : Sacha Goedegebure
 encoder : Lavf58.45.100
 comment : Creative Commons Attribution 3.0 - http://bbb3d.renderfarming.net
 genre : Animation
 Duration: 00:10:34.64, start: 0.000000, bitrate: 4195 kb/s
 Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 4094 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)
 Metadata:
 handler_name : GPAC ISO Video Handler
 Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, 5.1, fltp, 96 kb/s (default)
 Metadata:
 handler_name : GPAC ISO Audio Handler
Output #0, rtp_mpegts, to 'rtp://239.1.1.1:8000':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2avc1mp41
 title : Big Buck Bunny, Sunflower version
 artist : Blender Foundation 2008, Janus Bager Kristensen 2013
 composer : Sacha Goedegebure
 genre : Animation
 comment : Creative Commons Attribution 3.0 - http://bbb3d.renderfarming.net
 encoder : Lavf58.45.100
 Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 4094 kb/s, 25 fps, 25 tbr, 90k tbn, 25 tbc (default)
 Metadata:
 handler_name : GPAC ISO Video Handler
 Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, 5.1, fltp, 96 kb/s (default)
 Metadata:
 handler_name : GPAC ISO Audio Handler
Stream mapping:
 Stream #0:0 -> #0:0 (copy)
 Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help


When I run
ffprobe rtp://239.1.1.1:8000(without restarting the stream), around one in ten times I get

Input #0, rtp, from 'rtp://239.1.1.1:8000':
 Duration: N/A, start: 411.533978, bitrate: N/A
 Program 1 
 Metadata:
 service_name : Service01
 service_provider: FFmpeg
 Stream #0:1: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(progressive), 1920x1080 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc
 Stream #0:0: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16p, 384 kb/s


Meaning that the video and audio streams swapped indices. I'm writing a program which uses
libavwhere I rely on this to not happen. What is the reason for this and can it be fixed ?

Syndiquer tout le site
