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Autres articles (80)
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Le profil des utilisateurs
12 avril 2011, parChaque utilisateur dispose d’une page de profil lui permettant de modifier ses informations personnelle. Dans le menu de haut de page par défaut, un élément de menu est automatiquement créé à l’initialisation de MediaSPIP, visible uniquement si le visiteur est identifié sur le site.
L’utilisateur a accès à la modification de profil depuis sa page auteur, un lien dans la navigation "Modifier votre profil" est (...) -
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 (...) -
MediaSPIP : Modification des droits de création d’objets et de publication définitive
11 novembre 2010, parPar défaut, MediaSPIP permet de créer 5 types d’objets.
Toujours par défaut les droits de création et de publication définitive de ces objets sont réservés aux administrateurs, mais ils sont bien entendu configurables par les webmestres.
Ces droits sont ainsi bloqués pour plusieurs raisons : parce que le fait d’autoriser à publier doit être la volonté du webmestre pas de l’ensemble de la plateforme et donc ne pas être un choix par défaut ; parce qu’avoir un compte peut servir à autre choses également, (...)
Sur d’autres sites (8772)
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Do audio filtering with keeping the subtitles in MP4
6 mai 2022, par itil memek cantikHow to d already in a video MP4, as this


ffmpeg -i ori.mp4 -af pan='1c|c0=0.5*c0+0.5*c1' -b:a 47k video.mp4


correctly filter audio stereo but ruin/lose the subtitle ?


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avformat/matroskaenc : Put subtitles without duration into SimpleBlocks
9 avril 2021, par Andreas Rheinhardtavformat/matroskaenc : Put subtitles without duration into SimpleBlocks
The value zero for AVPacket.duration means that the duration is unknown,
which in practice means "play this subtitle until overridden by the next
subtitle". Yet for Matroska a BlockGroup with duration zero means
that the subtitle really has a duration zero. "Display until overridden"
is achieved by not setting a duration on the container level at all and
this is achieved by using a SimpleBlock or a BlockGroup without
duration. This commit implements this.Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
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.MKV to .MP4 choosing the audio and subtitles ?
11 décembre 2016, par Leo LettoThe following stream belongs to a .mkv file with dual audio ;
Stream #0:0: Video: h264 (High), yuv420p(progressive), 1280x960 [SAR 1:1 DAR 4:3], 29.97 fps, 29.97 tbr, 1k tbn, 59.94 tbc (default)
Stream #0:1(eng): Audio: mp3, 48000 Hz, stereo, s16p, 256 kb/s (default)
Stream #0:2(por): Audio: ac3, 48000 Hz, stereo, fltp, 192 kb/s
Stream #0:3(eng): Subtitle: ass (default)Which ffmpeg command should I use to create an output with the language in Portuguese, already with the English subtitles ?
I found some commands that can extract the language-based caption that I specify, but I didn’t find anything related to selecting the audio type.
This is the entire output from ffmpeg :
configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-lzma --enable-decklink --enable-zlib
libavutil 55. 41.101 / 55. 41.101
libavcodec 57. 66.108 / 57. 66.108
libavformat 57. 58.101 / 57. 58.101
libavdevice 57. 2.100 / 57. 2.100
libavfilter 6. 67.100 / 6. 67.100
libswscale 4. 3.101 / 4. 3.101
libswresample 2. 4.100 / 2. 4.100
libpostproc 54. 2.100 / 54. 2.100
Input #0, matroska,webm, from 'mydualmkv.mkv':
Metadata:
title : Avidemux
encoder : libebml v1.2.3 + libmatroska v1.3.0
creation_time : 2015-08-04T15:25:49.000000Z
Duration: 00:23:37.44, start: 0.000000, bitrate: 1908 kb/s
Stream #0:0: Video: h264 (High), yuv420p(progressive), 1280x960 [SAR 1:1 DAR 4:3], 29.97 fps, 29.97 tbr, 1k tbn, 59.94 tbc (default)
Stream #0:1(eng): Audio: mp3, 48000 Hz, stereo, s16p, 256 kb/s (default)
Stream #0:2(pot): Audio: ac3, 48000 Hz, stereo, fltp, 192 kb/s
Stream #0:3(eng): Subtitle: ass (default)
[mp4 @ 0000000000c36700] track 1: codec frame size is not set
Output #0, mp4, to 'path-to-output.mp4':
Metadata:
title : Avidemux
encoder : Lavf57.58.101
Stream #0:0: Video: h264 (High) ([33][0][0][0] / 0x0021), yuv420p(progressive), 1280x960 [SAR 1:1 DAR 4:3], q=2-31, 29.97 fps, 29.97 tbr, 16k tbn, 1k tbc (default)
Stream #0:1(por): Audio: ac3 ([165][0][0][0] / 0x00A5), 48000 Hz, stereo, fltp, 192 kb/s
Stream #0:2(eng): Subtitle: mov_text ([8][0][0][0] / 0x0008) (default)
Metadata:
encoder : Lavc57.66.108 mov_text
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Stream #0:2 -> #0:1 (copy)
Stream #0:3 -> #0:2 (ass (ssa) -> mov_text (native))
Press [q] to stop, [?] for help
frame= 5451 fps=0.0 q=-1.0 size= 39273kB time=00:03:01.89 bitrate=1768.7kbits/s speed= 363x
frame=11708 fps=11695 q=-1.0 size= 79743kB time=00:06:30.62 bitrate=1672.3kbits/s speed= 390x
frame=17902 fps=11926 q=-1.0 size= 122134kB time=00:09:57.60 bitrate=1674.2kbits/s speed= 398x
frame=24717 fps=12352 q=-1.0 size= 166885kB time=00:13:44.83 bitrate=1657.4kbits/s speed= 412x
frame=31995 fps=12792 q=-1.0 size= 211010kB time=00:17:47.74 bitrate=1618.9kbits/s speed= 427x
frame=38979 fps=12988 q=-1.0 size= 260758kB time=00:21:40.64 bitrate=1642.4kbits/s speed= 433x
frame=42478 fps=13076 q=-1.0 Lsize= 286844kB time=00:23:37.31 bitrate=1657.9kbits/s speed= 436x
video:252490kB audio:33218kB subtitle:11kB other streams:0kB global headers:0kB muxing overhead: 0.393387%
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