
Recherche avancée
Médias (1)
-
Bug de détection d’ogg
22 mars 2013, par
Mis à jour : Avril 2013
Langue : français
Type : Video
Autres articles (66)
-
Les formats acceptés
28 janvier 2010, parLes commandes suivantes permettent d’avoir des informations sur les formats et codecs gérés par l’installation local de ffmpeg :
ffmpeg -codecs ffmpeg -formats
Les format videos acceptés en entrée
Cette liste est non exhaustive, elle met en exergue les principaux formats utilisés : h264 : H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 m4v : raw MPEG-4 video format flv : Flash Video (FLV) / Sorenson Spark / Sorenson H.263 Theora wmv :
Les formats vidéos de sortie possibles
Dans un premier temps on (...) -
Submit bugs and patches
13 avril 2011Unfortunately a software is never perfect.
If you think you have found a bug, report it using our ticket system. Please to help us to fix it by providing the following information : the browser you are using, including the exact version as precise an explanation as possible of the problem if possible, the steps taken resulting in the problem a link to the site / page in question
If you think you have solved the bug, fill in a ticket and attach to it a corrective patch.
You may also (...) -
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
Sur d’autres sites (8501)
-
aarch64 : vp9itxfm : Do separate functions for half/quarter idct16 and idct32
22 novembre 2016, par Martin Storsjöaarch64 : vp9itxfm : Do separate functions for half/quarter idct16 and idct32
This work is sponsored by, and copyright, Google.
This avoids loading and calculating coefficients that we know will
be zero, and avoids filling the temp buffer with zeros in places
where we know the second pass won’t read.This gives a pretty substantial speedup for the smaller subpartitions.
The code size increases from 14740 bytes to 24292 bytes.
The idct16/32_end macros are moved above the individual functions ; the
instructions themselves are unchanged, but since new functions are added
at the same place where the code is moved from, the diff looks rather
messy.Before :
vp9_inv_dct_dct_16x16_sub1_add_neon : 236.7
vp9_inv_dct_dct_16x16_sub2_add_neon : 1051.0
vp9_inv_dct_dct_16x16_sub4_add_neon : 1051.0
vp9_inv_dct_dct_16x16_sub8_add_neon : 1051.0
vp9_inv_dct_dct_16x16_sub12_add_neon : 1387.4
vp9_inv_dct_dct_16x16_sub16_add_neon : 1387.6
vp9_inv_dct_dct_32x32_sub1_add_neon : 554.1
vp9_inv_dct_dct_32x32_sub2_add_neon : 5198.5
vp9_inv_dct_dct_32x32_sub4_add_neon : 5198.6
vp9_inv_dct_dct_32x32_sub8_add_neon : 5196.3
vp9_inv_dct_dct_32x32_sub12_add_neon : 6183.4
vp9_inv_dct_dct_32x32_sub16_add_neon : 6174.3
vp9_inv_dct_dct_32x32_sub20_add_neon : 7151.4
vp9_inv_dct_dct_32x32_sub24_add_neon : 7145.3
vp9_inv_dct_dct_32x32_sub28_add_neon : 8119.3
vp9_inv_dct_dct_32x32_sub32_add_neon : 8118.7After :
vp9_inv_dct_dct_16x16_sub1_add_neon : 236.7
vp9_inv_dct_dct_16x16_sub2_add_neon : 640.8
vp9_inv_dct_dct_16x16_sub4_add_neon : 639.0
vp9_inv_dct_dct_16x16_sub8_add_neon : 842.0
vp9_inv_dct_dct_16x16_sub12_add_neon : 1388.3
vp9_inv_dct_dct_16x16_sub16_add_neon : 1389.3
vp9_inv_dct_dct_32x32_sub1_add_neon : 554.1
vp9_inv_dct_dct_32x32_sub2_add_neon : 3685.5
vp9_inv_dct_dct_32x32_sub4_add_neon : 3685.1
vp9_inv_dct_dct_32x32_sub8_add_neon : 3684.4
vp9_inv_dct_dct_32x32_sub12_add_neon : 5312.2
vp9_inv_dct_dct_32x32_sub16_add_neon : 5315.4
vp9_inv_dct_dct_32x32_sub20_add_neon : 7154.9
vp9_inv_dct_dct_32x32_sub24_add_neon : 7154.5
vp9_inv_dct_dct_32x32_sub28_add_neon : 8126.6
vp9_inv_dct_dct_32x32_sub32_add_neon : 8127.2Signed-off-by : Martin Storsjö <martin@martin.st>
-
lavf : Add an MPEG-DASH ISOFF segmenting muxer
6 octobre 2014, par Martin Storsjölavf : Add an MPEG-DASH ISOFF segmenting muxer
This is mostly to serve as a reference example on how to segment
the output from the mp4 muxer, capable of writing the segment
list in four different ways :SegmentTemplate with SegmentTimeline
SegmentTemplate with implicit segments
SegmentList with individual files
SegmentList with one single file per track, and byte ranges
The muxer is able to serve live content (with optional windowing)
or create a static segmented MPD.In advanced cases, users will probably want to do the segmenting
in their own application code.Signed-off-by : Martin Storsjö <martin@martin.st>
-
lavu : add an API function to return the Libav version string
2 juillet 2015, par wm4lavu : add an API function to return the Libav version string
This returns something like "v12_dev0-1332-g333a27c". This is much more
useful than the individual library versions, of which there are too
many, and which are very hard to map back to releases or git commits.Signed-off-by : Janne Grunau <janne-libav@jannau.net>