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Autres articles (31)
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Librairies et binaires spécifiques au traitement vidéo et sonore
31 janvier 2010, parLes logiciels et librairies suivantes sont utilisées par SPIPmotion d’une manière ou d’une autre.
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 ;
Binaires complémentaires et facultatifs flvtool2 : (...) -
Support audio et vidéo HTML5
10 avril 2011MediaSPIP 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.
Pour les navigateurs plus anciens, le lecteur flash Flowplayer est utilisé.
Le lecteur HTML5 utilisé a été spécifiquement créé pour MediaSPIP : il est complètement modifiable graphiquement pour correspondre à un thème choisi.
Ces technologies permettent de distribuer vidéo et son à la fois sur des ordinateurs conventionnels (...) -
De l’upload à la vidéo finale [version standalone]
31 janvier 2010, parLe 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 (2450)
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FFmpeg MUXING OVERHEAD after 900 seconds h264 & ACC (from Axis Camera) to flv rtmp
11 août 2013, par user2672844Audio and Video works for 900 seconds and then ,muxing Overhead !!!
video:1889kB audio:1825kB global headers:0kB muxing overhead 2.162866%
AXIS IP CAM -> ffmpeg -> nginx
ffmpeg -v verbose -i rtsp://root:pass@192.168.0.106/axis-media/media.amp -itsoffset 00:00:05 -acodec copy -ac 1 -ab 64k -ar 16000 -f flv -r 5 -qscale 1 -b 128kB rtmp://192.168.0.107/myapp/test
I test many Commands with this one , i have the best resoults !!
Console Output after start the Command :
ffmpeg -v verbose -i rtsp://root:pass@192.168.0.106/axis-media/media.amp -itsoffset 00:00:05 -acodec copy -ac 1 -ab 64k -ar 16000 -f flv -r 5 -qscale 1 -b 128kB rtmp://192.168.0.107/myapp/test
ffmpeg version 0.8.6-6:0.8.6-1ubuntu2, Copyright (c) 2000-2013 the Libav developers
built on Mar 30 2013 22:20:06 with gcc 4.7.2
configuration: --arch=amd64 --enable-pthreads --enable-runtime-cpudetect --extra-version='6:0.8.6-1ubuntu2' --libdir=/usr/lib/x86_64-linux-gnu --prefix=/usr --enable-bzlib --enable-libdc1394 --enable-libfreetype --enable-gnutls --enable-libgsm --enable-libpulse --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-vaapi --enable-vdpau --enable-libvorbis --enable-libvpx --enable-zlib --enable-gpl --enable-postproc --enable-swscale --enable-libcdio --enable-x11grab --shlibdir=/usr/lib/x86_64-linux-gnu --enable-shared --disable-static
libavutil 51. 22. 1 / 51. 22. 1
libavcodec 53. 35. 0 / 53. 35. 0
libavformat 53. 21. 1 / 53. 21. 1
libavdevice 53. 2. 0 / 53. 2. 0
libavfilter 2. 15. 0 / 2. 15. 0
libswscale 2. 1. 0 / 2. 1. 0
libpostproc 52. 0. 0 / 52. 0. 0
*** THIS PROGRAM IS DEPRECATED ***
This program is only provided for compatibility and will be removed in a future release. Please use avconv instead.
[rtsp @ 0x63fb20] SDP:
v=0
o=- 1376246125522976 1376246125522976 IN IP4 192.168.0.106
s=Media Presentation
e=NONE
b=AS:50064
t=0 0
a=control:*
a=range:npt=0.000000-
m=video 0 RTP/AVP 96
c=IN IP4 0.0.0.0
b=AS:50000
a=framerate:5.0
a=transform:-1,0,0;0,-1,0;0,0,1
a=control:trackID=1
a=rtpmap:96 H264/90000
a=fmtp:96 packetization-mode=1; profile-level-id=4D0029; sprop-parameter-sets=Z00AKeKQKD9gLcBAQGkHiRFQ,aO48gA==
m=audio 0 RTP/AVP 97
c=IN IP4 0.0.0.0
b=AS:64
a=control:trackID=2
a=rtpmap:97 mpeg4-generic/16000/1
a=fmtp:97 streamtype=5; profile-level-id=15; mode=AAC-hbr; config=1408; sizeLength=13; indexLength=3; indexDeltaLength=3; profile=1; bitrate=64000;
[rtsp @ 0x63fb20] Estimating duration from bitrate, this may be inaccurate
Seems stream 0 codec frame rate differs from container frame rate: 180000.00 (180000/1) -> 90000.00 (180000/2)
Input #0, rtsp, from 'rtsp://root:pass@192.168.0.106/axis-media/media.amp':
Metadata:
title : Media Presentation
Duration: N/A, start: 0.062063, bitrate: N/A
Stream #0.0: Video: h264 (Main), yuvj420p, 320x240 [PAR 1:1 DAR 4:3], 90k tbr, 90k tbn, 180k tbc
Stream #0.1: Audio: aac, 16000 Hz, mono, s16
Incompatible pixel format 'yuvj420p' for codec 'flv', auto-selecting format 'yuv420p'
[buffer @ 0x641aa0] w:320 h:240 pixfmt:yuvj420p
[avsink @ 0x6512a0] auto-inserting filter 'auto-inserted scaler 0' between the filter 'src' and the filter 'out'
[scale @ 0x645540] w:320 h:240 fmt:yuvj420p -> w:320 h:240 fmt:yuv420p flags:0x4
Output #0, flv, to 'rtmp://192.168.0.107/myapp/test':
Metadata:
title : Media Presentation
encoder : Lavf53.21.1
Stream #0.0: Video: flv, yuv420p, 320x240 [PAR 1:1 DAR 4:3], q=2-31, 1024 kb/s, 1k tbn, 5 tbc
Stream #0.1: Audio: aac, 16000 Hz, mono
Stream mapping:
Stream #0.0 -> #0.0
Stream #0.1 -> #0.1
Press ctrl-c to stop encoding
frame= 1185 fps= 5 q=1.0 Lsize= 3794kB time=236.80 bitrate= 131.2kbits/s
video:1889kB audio:1825kB global headers:0kB muxing overhead 2.162866% -
av_interleaved_write_frame() unknown error when streaming WebM
16 avril 2015, par user1475135I’m following a guide to live WebM streaming through FFMpeg / FFServer and running into an interesting error. I have tried using a DirectShow webcam source, and also an existing WebM (finite length) video using -vcodec copy. Initially, both will manage to connect to the FFServer (I can see the POST 200 OKs to /feed1.ffm), and maybe even send a frame or two, but then FFMpeg crashes with
av_interleaved_write_frame(): Unknown error
. (Meanwhile, FFServer appears to be fine.)This appears to be an unusual variant of the error - normally it’s more common to get, say,
av_interleaved_write_frame(): I/O error
(which indicates file corruption). Has anyone seen this error, and better yet, can anyone tell me how to fix it ?FFMpeg commands
ffmpeg -re -i univac.webm -vcodec copy -acodec copy -f webm http://[my server]/feed1.ffm
ffmpeg -f dshow -i video="[my dshow source]" -f webm http://[my server]/feed1.ffm
FFserver command
ffserver -f ffserver.conf
ffserver.conf
This is only a slight variation in the one provided in the aforementioned guide.
Port 8080
BindAddress 0.0.0.0
MaxHTTPConnections 2000
MaxClients 5
# MaxBandwidth 10000
CustomLog -
NoDaemon
<feed>
File ./feed1.ffm
FileMaxSize 1G
ACL allow [IP of the machine with ffmpeg]
</feed>
<stream>
Feed feed1.ffm
Format webm
# Audio settings
AudioCodec vorbis
AudioBitRate 64
# Video settings
VideoCodec libvpx
VideoSize 640x480
VideoFrameRate 30
AVOptionVideo flags +global_header
AVOptionVideo cpu-used 0
AVOptionVideo qmin 10
AVOptionVideo qmax 42
AVOptionVideo quality good
AVOptionAudio flags +global_header
VideoBitRate 400
# Streaming settings
PreRoll 15
StartSendOnKey
</stream>FFserver logs
avserver version 0.8.6-6:0.8.6-1ubuntu2, Copyright (c) 2000-2013 the Libav developers
built on Mar 30 2013 with gcc 4.7.2
AVserver started
[current time] - [GET] "/feed1.ffm HTTP/1.1" 200 4149
[current time] - [POST] "/feed1.ffm HTTP/1.1" 200 4096
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Linux : Webcam capture not fast enough. Ffmpeg dies half way
19 août 2013, par user763410I am trying to capture webcam output in liux/ubuntu. I have a chico webcam (lenovo laptop). I am running inside a VMWARE virtual machine. The capture is not proceeding beyond 10 seconds. can you please help.
The command I used is :
$ ffmpeg -y -f video4linux2 -r 20 -s 160x120 -i /dev/video0 -acodec libfaac -ab 128k /tmp/web.avi
The most important message I am getting is :
[video4linux2,v4l2 @ 0x9e43fa0] The v4l2 frame is 46448 bytes, but 153600 bytes are expected
Complete message from ffmpeg :
ffmpeg version N-55159-gf118b41 Copyright (c) 2000-2013 the FFmpeg developers
built on Aug 18 2013 09:09:13 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
configuration: --enable-libass --prefix=/opt/ffmpeg --enable-debug --enable-libfreetype
libavutil 52. 40.100 / 52. 40.100
libavcodec 55. 19.100 / 55. 19.100
libavformat 55. 12.102 / 55. 12.102
libavdevice 55. 3.100 / 55. 3.100
libavfilter 3. 82.100 / 3. 82.100
libswscale 2. 4.100 / 2. 4.100
libswresample 0. 17.103 / 0. 17.103
[video4linux2,v4l2 @ 0x9e43fa0] The V4L2 driver changed the video from 160x120 to 320x240
[video4linux2,v4l2 @ 0x9e43fa0] The driver changed the time per frame from 1/20 to 1/15
Input #0, video4linux2,v4l2, from '/dev/video0':
Duration: N/A, start: 6424.338678, bitrate: 18432 kb/s
Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 320x240, 18432 kb/s, 15 fps, 15 tbr, 1000k tbn, 1000k tbc
Codec AVOption ab (set bitrate (in bits/s)) specified for output file #0 (/tmp/web.avi) has not been used for any stream. The most likely reason is either wrong type (e.g. a video option with no video streams) or that it is a private option of some encoder which was not actually used for any stream.
Output #0, avi, to '/tmp/web.avi':
Metadata:
ISFT : Lavf55.12.102
Stream #0:0: Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 320x240, q=2-31, 200 kb/s, 20 tbn, 20 tbc
Stream mapping:
Stream #0:0 -> #0:0 (rawvideo -> mpeg4)
Press [q] to stop, [?] for help
[video4linux2,v4l2 @ 0x9e43fa0] The v4l2 frame is 46448 bytes, but 153600 bytes are expected
/dev/video0: Invalid data found when processing input
frame= 29 fps= 14 q=3.5 Lsize= 87kB time=00:00:01.45 bitrate= 490.0kbits/s
video:80kB audio:0kB subtitle:0 global headers:0kB muxing overhead 7.760075%
[video4linux2,v4l2 @ 0x9e43fa0] Some buffers are still owned by the caller on close.