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Autres articles (50)
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Les autorisations surchargées par les plugins
27 avril 2010, parMediaspip core
autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs -
Publier sur MédiaSpip
13 juin 2013Puis-je poster des contenus à partir d’une tablette Ipad ?
Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir -
HTML5 audio and video support
13 avril 2011, parMediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
For older browsers the Flowplayer flash fallback is used.
MediaSPIP allows for media playback on major mobile platforms with the above (...)
Sur d’autres sites (7202)
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VLC libx264 streaming muxed as FLV
24 mars 2012, par Jan NovákI have a question on streaming output of libx264. My scenario is that Iam capturing video from webcam, encoding with x264 and then streaming data to flash, muxed as FLV. For muxing, Im using output/flv_bitstream.h, included in libx264 budle. The only modification of muxer, that I made, is that instead of fwrite() im usig send() to transfer data via socket... Encoding library is working fine. If I save output (even muxed), vlc player is able to play it. But, when it goes to data transfer via socket, vlc and flash are not cooperating. The weird thig is, that if Im sending data to vlc player thru socket, it waits till transmission end and then plays video from buffer. But what I need is to play live stream.
I also tryed to read flv file and send it to vlc of flash tag by tag and it is working fine.
Any suggestions ?
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FFMPEG conversion to MXF [closed]
16 février 2012, par MFBI have to wrap an MPEG2 video file in an MXF container and convert the audio in the process. I have the MXF wrapping working but it won't convert the audio stream (which needs to be 16bit, 48kHz Linear PCM).
Here's what I'm trying :
ffmpeg -i input.mpg -map 0:0 -map 0:1 -vcodec copy -f mpeg2video -acodec pcm_s16le -ar 48000 -ac 2 output.mxf
Results :
ffmpeg version 0.10 Copyright (c) 2000-2012 the FFmpeg developers
built on Jan 30 2012 17:49:23 with gcc 4.2.1 (Apple Inc. build 5666) (dot 3)
configuration: *{snipped}*
runtime-cpudetect
libavutil 51. 34.101 / 51. 34.101
libavcodec 53. 60.100 / 53. 60.100
libavformat 53. 31.100 / 53. 31.100
libavdevice 53. 4.100 / 53. 4.100
libavfilter 2. 60.100 / 2. 60.100
libswscale 2. 1.100 / 2. 1.100
libswresample 0. 6.100 / 0. 6.100
libpostproc 52. 0.100 / 52. 0.100
[mpeg @ 0x10201ae00] max_analyze_duration 5000000 reached at 5000000
Input #0, mpeg, from '/Volumes/Extra/test.mpg':
Duration: 00:00:59.97, start: 0.192911, bitrate: 6513 kb/s
Stream #0:0[0x1c0]: Audio: mp2, 48000 Hz, stereo, s16, 384 kb/s
Stream #0:1[0x1e0]: Video: mpeg2video (Main), yuv420p, 720x576 [SAR 16:15 DAR 4:3], 12000 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc
Output #0, mpeg2video, to 'video.mxf':
Metadata:
encoder : Lavf53.31.100
Stream #0:0: Video: mpeg2video, yuv420p, 720x576 [SAR 16:15 DAR 4:3], q=2-31, 12000 kb/s, 25 fps, 90k tbn, 25 tbc
Stream mapping:
Stream #0:1 -> #0:0 (copy)
Press [q] to stop, [?] for help
frame= 1500 fps= 0 q=-1.0 Lsize= 43949kB time=00:00:59.96 bitrate=6004.6kbits/s
video:43949kB audio:0kB global headers:0kB muxing overhead 0.000000%The video plays fine as the MXF, but there is no audio stream at all. Any help would be great.
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ffmpeg curves video filter
8 octobre 2013, par Veja AlinaI try to apply a curves video filter. I tried :
ffmpeg -y -i /sdcard/videokit/in.mp4 -strict experimental -vf curves=vintage -s 640x480 -r 30 -aspect 4:3 -ab 48000 -ac 2 -ar 22050 -b 2097k /sdcard/videokit/curve.mp4
But it doesn't work. I need a valid
ffmepg
command.EDIT (from the comments) :
-vf curves=vintage is not a valid command.The resulted video can't be played
. I tried-filter_complex
also but it only plays the audio.