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Autres articles (103)
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MediaSPIP Player : problèmes potentiels
22 février 2011, parLe lecteur ne fonctionne pas sur Internet Explorer
Sur Internet Explorer (8 et 7 au moins), le plugin utilise le lecteur Flash flowplayer pour lire vidéos et son. Si le lecteur ne semble pas fonctionner, cela peut venir de la configuration du mod_deflate d’Apache.
Si dans la configuration de ce module Apache vous avez une ligne qui ressemble à la suivante, essayez de la supprimer ou de la commenter pour voir si le lecteur fonctionne correctement : /** * GeSHi (C) 2004 - 2007 Nigel McNie, (...) -
L’espace de configuration de MediaSPIP
29 novembre 2010, parL’espace de configuration de MediaSPIP est réservé aux administrateurs. Un lien de menu "administrer" est généralement affiché en haut de la page [1].
Il permet de configurer finement votre site.
La navigation de cet espace de configuration est divisé en trois parties : la configuration générale du site qui permet notamment de modifier : les informations principales concernant le site (...) -
MediaSPIP Init et Diogène : types de publications de MediaSPIP
11 novembre 2010, parÀ l’installation d’un site MediaSPIP, le plugin MediaSPIP Init réalise certaines opérations dont la principale consiste à créer quatre rubriques principales dans le site et de créer cinq templates de formulaire pour Diogène.
Ces quatre rubriques principales (aussi appelées secteurs) sont : Medias ; Sites ; Editos ; Actualités ;
Pour chacune de ces rubriques est créé un template de formulaire spécifique éponyme. Pour la rubrique "Medias" un second template "catégorie" est créé permettant d’ajouter (...)
Sur d’autres sites (9491)
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How to call ffmpeg code to keep same video quality ?
7 mai 2016, par seaguestI am using ffmpeg3 to convert mv.webm to mp4, it works fine when I use the command line.
$ ffprobe mv.webm
ffprobe version N-79789-g58b3e56 Copyright (c) 2007-2016 the FFmpeg developers
built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.1)
configuration: --enable-gpl --enable-shared --enable-libx264
libavutil 55. 24.100 / 55. 24.100
libavcodec 57. 39.100 / 57. 39.100
libavformat 57. 36.100 / 57. 36.100
libavdevice 57. 0.101 / 57. 0.101
libavfilter 6. 45.100 / 6. 45.100
libswscale 4. 1.100 / 4. 1.100
libswresample 2. 0.101 / 2. 0.101
libpostproc 54. 0.100 / 54. 0.100
Input #0, matroska,webm, from 'mv.webm':
Metadata:
encoder : google
Duration: 00:04:56.36, start: 0.000000, bitrate: 836 kb/s
Stream #0:0: Video: vp8, yuv420p, 640x480, SAR 1:1 DAR 4:3, 25 fps, 25 tbr, 1k tbn (default)
Stream #0:1: Audio: vorbis, 44100 Hz, stereo, fltp (default)
$ ffmpeg -i mv.webm -acodec aac -vcodec libx264 mv1.mp4
$ ffprobe mv1.mp4
ffprobe version N-79789-g58b3e56 Copyright (c) 2007-2016 the FFmpeg developers
built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.1)
configuration: --enable-gpl --enable-shared --enable-libx264
libavutil 55. 24.100 / 55. 24.100
libavcodec 57. 39.100 / 57. 39.100
libavformat 57. 36.100 / 57. 36.100
libavdevice 57. 0.101 / 57. 0.101
libavfilter 6. 45.100 / 6. 45.100
libswscale 4. 1.100 / 4. 1.100
libswresample 2. 0.101 / 2. 0.101
libpostproc 54. 0.100 / 54. 0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'n1.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf57.36.100
Duration: 00:04:56.36, start: 0.000000, bitrate: 628 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 640x480 [SAR 1:1 DAR 4:3], 500 kb/s, 25 fps, 25 tbr, 12800 tbn (default)
Metadata:
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 120 kb/s (default)
Metadata:
handler_name : SoundHandlerI play it with VLC, there is no noise at all.
Here is my first question, in case we don’t specify the bitrate in the ffmpeg command, how are the bitrate of video/audio determined ?
Since I am developping in Golang, I use the framework gmf which calls ffmpeg, I use go to convert the video format without specifying bitrate, then I got the following info :
$ ffprobe mv2.mp4
ffprobe version N-79789-g58b3e56 Copyright (c) 2007-2016 the FFmpeg developers
built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.1)
configuration: --enable-gpl --enable-shared --enable-libx264
libavutil 55. 24.100 / 55. 24.100
libavcodec 57. 39.100 / 57. 39.100
libavformat 57. 36.100 / 57. 36.100
libavdevice 57. 0.101 / 57. 0.101
libavfilter 6. 45.100 / 6. 45.100
libswscale 4. 1.100 / 4. 1.100
libswresample 2. 0.101 / 2. 0.101
libpostproc 54. 0.100 / 54. 0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'mv2.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf57.36.100
Duration: 00:04:56.36, start: 0.000000, bitrate: 540 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 640x480, 385 kb/s, 25 fps, 25 tbr, 12800 tbn (default)
Metadata:
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 147 kb/s (default)
Metadata:
handler_name : SoundHandlerThe bitrate is event better than mv1.mp4, however when I play it with VLC, I heard a lot of noises.
I tried to increase the audio bitrate (the way we set bitrate is like AVCodecContext->bit_rate = 441000...), but this doesn’t help.
Maybe there is some option that I need to add when calling ffmpeg code to keep the same quality as input source, could anyone help ?
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How can I convert .xm, .mod, and others to .mp3 using avconv ? [migrated]
12 août 2016, par RalphORamaI recently downloaded a pack of keygen chiptunes (via http://keygenmusic.net/), and most of them are in file formats such as .xm, .mod, etc. I’d like to convert them all to mp3, hopefully using a tool like avconv (so I can batch process them).
However, when I issue
avprobe <filename></filename>, I get the following error :avprobe version 9.18-6:9.18-0ubuntu0.14.04.1, Copyright (c) 2007-2014 the Libav developers
built on Mar 16 2015 13:19:10 with gcc 4.8 (Ubuntu 4.8.2-19ubuntu1)
2000AD/2000AD - Creatures To The Rescue +3 trn.mod: Invalid data found when processing input
# avprobe outputHow can I convert these files to mp3 format ?
Also, here is a list of all the filetypes I need to convert :
24 ahx
2 amd
4 bp
7 d00
4 fc13
15 fc14
6 hsc
217 it
99 mid
5 mo3
989 mod
6 mp3
1 mtm
3 nsf
19 ogg
3 rad
82 s3m
2 S3M
119 sc68
18 sid
124 v2m
9 wav
3116 xm
20 ym -
using ffmpeg to convert a video like ffprobe
10 avril 2016, par siyanewI want to use
ffmpegto convert my videos to these format - exactly thisffprobeinformation , whats the command ?ffprobe version N-79139-gde1a0d4 Copyright (c) 2007-2016 the FFmpeg developers
built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.1)
configuration: --extra-libs=-ldl --prefix=/opt/ffmpeg --mandir=/usr/share/man --enable-avresample --disable-debug --enable-nonfree --enable-gpl --enable-version3 --enable-libopencore-amrnb --enable-libopencore-amrwb --disable-decoder=amrnb --disable-decoder=amrwb --enable-libpulse --enable-libfreetype --enable-gnutls --enable-libx264 --enable-libx265 --enable-libfdk-aac --enable-libvorbis --enable-libmp3lame --enable-libopus --enable-libvpx --enable-libspeex --enable-libass --enable-avisynth --enable-libsoxr --enable-libxvid --enable-libvidstab
libavutil 55. 19.100 / 55. 19.100
libavcodec 57. 30.100 / 57. 30.100
libavformat 57. 29.101 / 57. 29.101
libavdevice 57. 0.101 / 57. 0.101
libavfilter 6. 40.102 / 6. 40.102
libavresample 3. 0. 0 / 3. 0. 0
libswscale 4. 0.100 / 4. 0.100
libswresample 2. 0.101 / 2. 0.101
libpostproc 54. 0.100 / 54. 0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Age ye rooz اگه یه روز بری سفر (Thai Style).mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: isommp42
creation_time : 2014-02-22 22:36:49
Duration: 00:02:42.21, start: 0.000000, bitrate: 280 kb/s
Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 320x240 [SAR 1:1 DAR 4:3], 182 kb/s, 25 fps, 25 tbr, 25 tbn, 50 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 95 kb/s (default)
Metadata:
creation_time : 2014-02-22 22:36:49
handler_name : IsoMedia File Produced by Google, 5-11-2011and
ffprobe version N-79139-gde1a0d4 Copyright (c) 2007-2016 the FFmpeg developers
built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.1)
configuration: --extra-libs=-ldl --prefix=/opt/ffmpeg --mandir=/usr/share/man --enable-avresample --disable-debug --enable-nonfree --enable-gpl --enable-version3 --enable-libopencore-amrnb --enable-libopencore-amrwb --disable-decoder=amrnb --disable-decoder=amrwb --enable-libpulse --enable-libfreetype --enable-gnutls --enable-libx264 --enable-libx265 --enable-libfdk-aac --enable-libvorbis --enable-libmp3lame --enable-libopus --enable-libvpx --enable-libspeex --enable-libass --enable-avisynth --enable-libsoxr --enable-libxvid --enable-libvidstab
libavutil 55. 19.100 / 55. 19.100
libavcodec 57. 30.100 / 57. 30.100
libavformat 57. 29.101 / 57. 29.101
libavdevice 57. 0.101 / 57. 0.101
libavfilter 6. 40.102 / 6. 40.102
libavresample 3. 0. 0 / 3. 0. 0
libswscale 4. 0.100 / 4. 0.100
libswresample 2. 0.101 / 2. 0.101
libpostproc 54. 0.100 / 54. 0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Fast Track - Simon's Cat.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: isommp42
creation_time : 2016-04-09 07:15:21
Duration: 00:01:38.13, start: 0.000000, bitrate: 399 kb/s
Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p(tv, bt709), 640x360 [SAR 1:1 DAR 16:9], 300 kb/s, 25 fps, 25 tbr, 25 tbn, 50 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 95 kb/s (default)
Metadata:
creation_time : 2016-04-09 07:15:22
handler_name : IsoMedia File Produced by Google, 5-11-2011
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