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Autres articles (108)
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MediaSPIP Core : La Configuration
9 novembre 2010, parMediaSPIP 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 (...) -
Les tâches Cron régulières de la ferme
1er décembre 2010, parLa gestion de la ferme passe par l’exécution à intervalle régulier de plusieurs tâches répétitives dites Cron.
Le super Cron (gestion_mutu_super_cron)
Cette tâche, planifiée chaque minute, a pour simple effet d’appeler le Cron de l’ensemble des instances de la mutualisation régulièrement. Couplée avec un Cron système sur le site central de la mutualisation, cela permet de simplement générer des visites régulières sur les différents sites et éviter que les tâches des sites peu visités soient trop (...) -
Emballe Médias : Mettre en ligne simplement des documents
29 octobre 2010, parLe plugin emballe médias a été développé principalement pour la distribution mediaSPIP mais est également utilisé dans d’autres projets proches comme géodiversité par exemple. Plugins nécessaires et compatibles
Pour fonctionner ce plugin nécessite que d’autres plugins soient installés : CFG Saisies SPIP Bonux Diogène swfupload jqueryui
D’autres plugins peuvent être utilisés en complément afin d’améliorer ses capacités : Ancres douces Légendes photo_infos spipmotion (...)
Sur d’autres sites (9361)
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FFMpeg - Merge multiple rtmp stream inputs to a single rtmp output
5 septembre 2013, par Paulo Miguel AlmeidaI'm trying to combine/merge two rtmp streams and then publish 'em to another stream
Ex. :
ffmpeg -i rtmp://ip:1935/live/micMyStream7 -i rtmp://ip:1935/live/MyStream7 -strict -2 -f flv rtmp://ip:1935/live/bcove7
The scenario is the following, I got a stream which comes from an user's microphone that
is the first one (micMyStream7) and I also got a stream from another user but this one has audio and video(MyStream7).As they are talking to each other when a user is speaking, the other one would only be listening to and vice versa.
My idea is to set up a third stream called (bcove) which would "merge" both of them so that I could have spectators who would only be listening to the entire conversation between them.
This is the log that ffmpeg printed although I couldn't recognize any message which helped me out.
paulo@paulo-desktop:~$ ffmpeg -re -i rtmp://ip:1935/live/micMyStream7 -i rtmp://ip:1935/live/MyStream7 -strict -2 -f flv rtmp://ip:1935/live/bcove7
ffmpeg version N-56029-g2ffead9 Copyright (c) 2000-2013 the FFmpeg developers
built on Sep 4 2013 11:05:57 with gcc 4.7 (Ubuntu/Linaro 4.7.3-1ubuntu1)
configuration:
libavutil 52. 43.100 / 52. 43.100
libavcodec 55. 31.100 / 55. 31.100
libavformat 55. 16.100 / 55. 16.100
libavdevice 55. 3.100 / 55. 3.100
libavfilter 3. 83.102 / 3. 83.102
libswscale 2. 5.100 / 2. 5.100
libswresample 0. 17.103 / 0. 17.103
Input #0, flv, from 'rtmp://ip:1935/live/micMyStream7':
Metadata:
author :
copyright :
description :
keywords :
rating :
title :
presetname : Medium Bandwidth (300 Kbps) - VP6
creationdate : Wed Sep 4 16:41:52 2013
:
videodevice : Built-in iSight
videokeyframe_frequency: 5
audiodevice : External microphone
audiochannels : 1
audioinputvolume: 75
Duration: N/A, start: 0.000000, bitrate: 253 kb/s
Stream #0:0: Video: vp6f, yuv420p, 320x240, 204 kb/s, 44.83 tbr, 1k tbn, 1k tbc
Stream #0:1: Audio: mp3, 22050 Hz, mono, s16p, 49 kb/s
Input #1, flv, from 'rtmp://ip:1935/live/MyStream7':
Metadata:
author :
copyright :
description :
keywords :
rating :
title :
presetname : Custom
creationdate : Wed Sep 4 12:02:24 2013
:
videodevice : FaceTime HD Camera (Built-in)
videokeyframe_frequency: 5
audiodevice : Internal microphone
audiochannels : 1
audioinputvolume: 75
Duration: N/A, start: 0.000000, bitrate: 253 kb/s
Stream #1:0: Video: vp6f, yuv420p, 320x240, 204 kb/s, 45.08 tbr, 1k tbn, 1k tbc
Stream #1:1: Audio: mp3, 22050 Hz, mono, s16p, 49 kb/s
Output #0, flv, to 'rtmp://ip:1935/live/bcove7':
Metadata:
author :
copyright :
description :
keywords :
rating :
title :
presetname : Medium Bandwidth (300 Kbps) - VP6
creationdate : Wed Sep 4 16:41:52 2013
:
videodevice : Built-in iSight
videokeyframe_frequency: 5
audiodevice : External microphone
audiochannels : 1
audioinputvolume: 75
encoder : Lavf55.16.100
Stream #0:0: Video: flv1 (flv) ([2][0][0][0] / 0x0002), yuv420p, 320x240, q=2-31, 200 kb/s, 1k tbn, 44.83 tbc
Stream #0:1: Audio: adpcm_swf ([1][0][0][0] / 0x0001), 22050 Hz, mono, s16, 88 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (vp6f -> flv)
Stream #0:1 -> #0:1 (mp3 -> adpcm_swf)
Press [q] to stop, [?] for help
[mp3 @ 0x3625ec0] overread, skip -9 enddists: -3 -300:14.44 bitrate= 224.0kbits/s
[mp3 @ 0x3625ec0] overread, skip -7 enddists: -3 -30:26.39 bitrate= 203.5kbits/sThanks in advance
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How to choosing audio stream
5 septembre 2013, par user2696962I want to choose the first audio stream. but for some reason, it's not working. it's always choosing the last audio stream
what i've tried
ffmpeg -i test.avi -vf "movie=watermark_720.png [watermark]; [in][watermark] overlay=main_w-overlay_w-10:10 [out]" -map 0:0 -map 0:1 -y -ar 44100 -ac 1 -vcodec libx264 -b 555K -threads 0 test.2.flv
ffmpeg -i test.avi
ffmpeg -i test.avi
ffmpeg version 1.2.3 Copyright (c) 2000-2013 the FFmpeg developers
built on Sep 5 2013 03:04:34 with gcc 4.7 (Debian 4.7.1-2)
configuration: --enable-gpl --enable-libass --enable-libfaac --enable-libfdk-aac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libspeex --enable-librtmp --enable-libtheora --enable-libvorbis --enable-libvpx --enable-x11grab --enable-libx264 --enable-nonfree --enable-version3
libavutil 52. 18.100 / 52. 18.100
libavcodec 54. 92.100 / 54. 92.100
libavformat 54. 63.104 / 54. 63.104
libavdevice 54. 3.103 / 54. 3.103
libavfilter 3. 42.103 / 3. 42.103
libswscale 2. 2.100 / 2. 2.100
libswresample 0. 17.102 / 0. 17.102
libpostproc 52. 2.100 / 52. 2.100
Input #0, avi, from 'test.avi':
Metadata:
encoder : VirtualDubMod 1.5.10.2 (build 2540/release)
Duration: 01:37:21.64, start: 0.000000, bitrate: 2018 kb/s
Stream #0:0: Video: mpeg4 (Advanced Simple Profile) (XVID / 0x44495658), yuv420p, 720x404 [SAR 1:1 DAR 180:101], 29.97 tbr, 29.97 tbn, 29.97 tbc
Stream #0:1: Audio: ac3 ([0] [0][0] / 0x2000), 48000 Hz, stereo, fltp, 160 kb/s
Stream #0:2: Audio: ac3 ([0] [0][0] / 0x2000), 48000 Hz, 5.1(side), fltp, 448 kb/stest.2.flv comes out with
Stream #0:2: Audio: ac3 ([0] [0][0] / 0x2000), 48000 Hz, 5.1(side), fltp, 448 kb/s
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Pushing data to web-browser while processing input from ffmpeg
6 septembre 2013, par StackedI want to push output of this directly to the user using PHP/Python :
wget -qO- "http://my-video-stream-input.url/here" | ffmpeg -i pipe:0 -ab 192000 -acodec libmp3lame -map_metadata -1 -vn 1378457645_myfile.mp3
The above command takes the input stream and converts on-the-fly it to audio without waiting for full-file to download, this works perfectly at terminal. Now, I need to push the ffmpeg processed output audio to the web-browser, once again on-the-fly without completing the full transcode, like :
Wget->ffmpeg->Web-browser in real-time
I tried the below in PHP but this results in 0 byte file-downloads :
$cmd = "wget -qO- "http://my-video-stream-input.url/here" | ffmpeg -i pipe:0 -ab 192000 -acodec libmp3lame -map_metadata -1 -vn 1378457645_myfile.mp3";
header('Content-type: audio/mpeg');
header("Content-Type: application/octet-stream");
header("Content-Disposition: attachment; filename=\"1378457645_myfile.mp3\"");
passthru($cmd);Adding
2>&1
to the $cmd shows downloads a 3.6 KB file with followingffmpeg version 0.7.15, Copyright (c) 2000-2013 the FFmpeg developers
built on Feb 22 2013 07:22:31 with gcc 4.4.5
configuration: --enable-libdc1394 --prefix=/usr --extra-cflags='-Wall -g ' --cc='ccache cc' --enable-shared --enable-libmp3lame --enable-gpl --enable-libvorbis --enable-pthreads --enable-libfaac --enable-libxvid --enable-postproc --enable-x11grab --enable-libgsm --enable-libtheora --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libx264 --enable-libspeex --enable-nonfree --disable-stripping --enable-avfilter --enable-libdirac --disable-decoder=libdirac --enable-libfreetype --enable-libschroedinger --disable-encoder=libschroedinger --enable-version3 --enable-libopenjpeg --enable-libvpx --enable-librtmp --extra-libs=-lgcrypt --disable-altivec --disable-armv5te --disable-armv6 --disable-vis
libavutil 50. 43. 0 / 50. 43. 0
libavcodec 52.123. 0 / 52.123. 0
libavformat 52.111. 0 / 52.111. 0
libavdevice 52. 5. 0 / 52. 5. 0
libavfilter 1. 80. 0 / 1. 80. 0
libswscale 0. 14. 1 / 0. 14. 1
libpostproc 51. 2. 0 / 51. 2. 0
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'pipe:0':
Duration: 00:02:54.75, start: 164.745578, bitrate: N/A
Stream #0.0(und): Audio: aac, 44100 Hz, stereo, s16
Metadata:
creation_time : 2013-08-30 05:36:13
Output #0, mp3, to '1378458744_myfile.mp3':
Metadata:
TSSE : Lavf52.111.0
Stream #0.0(und): Audio: libmp3lame, 44100 Hz, stereo, s16, 192 kb/s
Metadata:
creation_time : 2013-08-30 05:36:13
Stream mapping:
Stream #0.0 -> #0.0
size= 134kB time=00:00:05.69 bitrate= 192.3kbits/s
size= 263kB time=00:00:11.23 bitrate= 192.1kbits/s
size= 386kB time=00:00:16.45 bitrate= 192.1kbits/s
size= 515kB time=00:00:21.96 bitrate= 192.1kbits/s
size= 637kB time=00:00:27.16 bitrate= 192.1kbits/s
size= 765kB time=00:00:32.62 bitrate= 192.0kbits/s
size= 884kB time=00:00:37.69 bitrate= 192.0kbits/s
size= 1011kB time=00:00:43.12 bitrate= 192.0kbits/s
size= 1134kB time=00:00:48.37 bitrate= 192.0kbits/s
size= 1253kB time=00:00:53.47 bitrate= 192.0kbits/s
size= 1379kB time=00:00:58.82 bitrate= 192.0kbits/s
size= 1508kB time=00:01:04.31 bitrate= 192.0kbits/s
size= 1632kB time=00:01:09.64 bitrate= 192.0kbits/s
size= 1758kB time=00:01:14.99 bitrate= 192.0kbits/s
size= 1883kB time=00:01:20.35 bitrate= 192.0kbits/s
size= 2010kB time=00:01:25.76 bitrate= 192.0kbits/s
size= 2141kB time=00:01:31.35 bitrate= 192.0kbits/s
size= 2265kB time=00:01:36.65 bitrate= 192.0kbits/s
size= 2389kB time=00:01:41.92 bitrate= 192.0kbits/s
size= 2515kB time=00:01:47.31 bitrate= 192.0kbits/s
size= 2637kB time=00:01:52.50 bitrate= 192.0kbits/s
size= 2767kB time=00:01:58.04 bitrate= 192.0kbits/s
size= 2888kB time=00:02:03.21 bitrate= 192.0kbits/s
size= 3017kB time=00:02:08.70 bitrate= 192.0kbits/s
size= 3142kB time=00:02:14.06 bitrate= 192.0kbits/s
size= 3266kB time=00:02:19.33 bitrate= 192.0kbits/s
size= 3391kB time=00:02:24.66 bitrate= 192.0kbits/s
size= 3518kB time=00:02:30.07 bitrate= 192.0kbits/s
size= 3650kB time=00:02:35.71 bitrate= 192.0kbits/s
size= 3778kB time=00:02:41.20 bitrate= 192.0kbits/s
size= 3862kB time=00:02:44.78 bitrate= 192.0kbits/s
video:0kB audio:3862kB global headers:0kB muxing overhead 0.004804%