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Autres articles (59)
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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 (...) -
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 (...) -
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 (7776)
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Why does FFMPEG reports the wrong duration ?
20 octobre 2011, par Adrian LynchI have an oldish build of FFMPEG that I can't easily change.
We use FFMPEG to find the duration of video and sound files. So far it has been working wonderfully.
Recently on an uploaded file, FFMPEG has reported a 30 second file as being 5 minutes 30 seconds in length.
Could it be something wrong with the file rather than FFMPEG ?
If I use FFMPEG to convert to another file, the duration is restored.
In case it matters, ffmpeg -i 'path to the file' produces :
FFmpeg version Sherpya-r15618, Copyright (c) 2000-2008 Fabrice Bellard, et al. libavutil 49.11. 0 / 49.11. 0 libavcodec 52. 0. 0 / 52. 0. 0 libavformat 52.22. 1 / 52.22. 1 libavdevice 52. 1. 0 / 52. 1. 0 libswscale 0. 6. 1 / 0. 6. 1 libpostproc 51. 2. 0 / 51. 2. 0 built on Oct 14 2008 23:43:47, gcc : 4.2.5 20080919 (prerelease) [Sherpya] Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'H :\path\to\file.mov' : Duration : 00:05:35.00, start : 0.000000, bitrate : 1223 kb/s Stream #0.0(eng) : Audio : aac, 44100 Hz, stereo, s16 Stream #0.1(eng) : Video : h264, yuv420p, 720x576, 25.00 tb(r) Must supply at least one output file
It's that very command I use to then extract the duration with RegEx.
Does anyone have a nice application that can do what I'm trying above but get it right 100% of the time ?
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What codec do I need to convert .wav to .mp3 with ffmpeg ?
19 septembre 2011, par LedZeppelinI am able to convert from .mp3 files to .wav files.
me@me-desktop:~$ ffmpeg -i Desktop/input.mp3 Desktop/output.wav
FFmpeg version SVN-r0.5.1-4:0.5.1-1ubuntu1.1, Copyright (c) 2000-2009 Fabrice Bellard, et al.
configuration: --extra-version=4:0.5.1-1ubuntu1.1 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --disable-stripping --disable-vhook --enable-runtime-cpudetect --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdc1394 --enable-shared --disable-static
libavutil 49.15. 0 / 49.15. 0
libavcodec 52.20. 1 / 52.20. 1
libavformat 52.31. 0 / 52.31. 0
libavdevice 52. 1. 0 / 52. 1. 0
libavfilter 0. 4. 0 / 0. 4. 0
libswscale 0. 7. 1 / 0. 7. 1
libpostproc 51. 2. 0 / 51. 2. 0
built on Mar 31 2011 18:53:20, gcc: 4.4.3
[mp3 @ 0x9449510]mdb:511, lastbuf:0 skipping granule 0
Last message repeated 1 times
[mp3 @ 0x9449510]mdb:511, lastbuf:0 skipping granule 1
Last message repeated 1 times
Input #0, mp3, from 'Desktop/input.mp3':
Duration: 00:04:45.31, start: 0.000000, bitrate: 256 kb/s
Stream #0.0: Audio: mp3, 48000 Hz, stereo, s16, 256 kb/s
Output #0, wav, to 'Desktop/output.wav':
Stream #0.0: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s
Stream mapping:
Stream #0.0 -> #0.0
Press [q] to stop encoding
[mp3 @ 0x9449510]mdb:511, lastbuf:0 skipping granule 0
Last message repeated 1 times
[mp3 @ 0x9449510]mdb:511, lastbuf:0 skipping granule 1
size= 42944kB time=229.03 bitrate=1536.0kbits/s
video:0kB audio:42944kB global headers:0kB muxing overhead 0.000100%However when I try to convert the same .wav file back to an .mp3 I get the following error : Unsupported codec for output stream #0.0
me@me-desktop:~$ ffmpeg -i Desktop/output.wav Desktop/output2.mp3
FFmpeg version SVN-r0.5.1-4:0.5.1-1ubuntu1.1, Copyright (c) 2000-2009 Fabrice Bellard, et al.
configuration: --extra-version=4:0.5.1-1ubuntu1.1 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --disable-stripping --disable-vhook --enable-runtime-cpudetect --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdc1394 --enable-shared --disable-static
libavutil 49.15. 0 / 49.15. 0
libavcodec 52.20. 1 / 52.20. 1
libavformat 52.31. 0 / 52.31. 0
libavdevice 52. 1. 0 / 52. 1. 0
libavfilter 0. 4. 0 / 0. 4. 0
libswscale 0. 7. 1 / 0. 7. 1
libpostproc 51. 2. 0 / 51. 2. 0
built on Mar 31 2011 18:53:20, gcc: 4.4.3
Input #0, wav, from 'Desktop/output.wav':
Duration: 00:03:49.03, bitrate: 1536 kb/s
Stream #0.0: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s
Output #0, mp3, to 'Desktop/output2.mp3':
Stream #0.0: Audio: 0x0000, 48000 Hz, stereo, s16, 64 kb/s
Stream mapping:
Stream #0.0 -> #0.0
Unsupported codec for output stream #0.0I've already tried installing unstripped-51 per a suggestion from a previous question but I am still unable to convert from .wav to .mp3
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Revision 4664b219a2 : vp9_ratectrl : change ARF overlays rate correction factor ARF overlays now use t
6 avril 2014, par Guillaume MartresChanged Paths :
Modify /vp9/encoder/vp9_ratectrl.c
vp9_ratectrl : change ARF overlays rate correction factorARF overlays now use the same rate correction factor as regular inter
frames, further testing would be needed to see if it makes sense to use
a completely separate rate correction factor for ARF overlays.$ vpxenc —cpu-used=5 —fps=50/1 —target-bitrate=2000
parkjoy.y4m -o out.webm
=> Before : 3356 kb/s
=> After : 2271 kb/sChange-Id : I73e4defa615ba7a8a2bdb845864f4b1721cbbffe