
Recherche avancée
Autres articles (54)
-
Websites made with MediaSPIP
2 mai 2011, parThis page lists some websites based on MediaSPIP.
-
Use, discuss, criticize
13 avril 2011, parTalk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
A discussion list is available for all exchanges between users. -
Creating farms of unique websites
13 avril 2011, parMediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...)
Sur d’autres sites (8147)
-
Revision 6109 : Amélioration du js distant lors de l’embed d’un player audio. Pas de ...
3 novembre 2011, par kent1 — LogAmélioration du js distant lors de l’embed d’un player audio. Pas de bouton fullscreen ni de mute pour un lecteur audio (il suffit de pause pour couper le son). On enlève l’autohide des controles du lecteur dans le cas d’un son pour avoir toujours les controles à disposition. On impose la hauteur (...)
-
How do I configure ffmpeg & openh264 so that the video file can be opened in Windows Media Player 12
10 mars 2017, par Sacha GuyerI have successfully created h264/mp4 movie files with ffmpeg and the x264 library.
Now I would like to change the h264 library from x264 to openH264. I could replace the x264 library with openH264, recompile ffmpeg and produce movie files, without changing my sources that produce the movie. The resulting movie opens fine in Quicktime on Mac, but on Windows, Windows Media Player 12 cannot play it.
The documentation about Windows Media Player support for h264 is unclear. File types supported by Windows Media Player states in the table that Windows Media Player 12 supports mp4, but the text below says :
Windows Media Player does not support the playback of the .mp4 file format.
From what I have observed, Windows Media Player 12 IS capable of playing h264/mp4 files, but only when created with x264.
Does anyone know how I need to adjust the configuration of the codec/context so that the movie plays in Windows Media Player ? Does Windows Media Player only support certain h264 profiles ?
I noticed the warning :
[libopenh264 @ 0x...] [OpenH264] this = 0x..., Warning:bEnableFrameSkip = 0,bitrate can’t be controlled for RC_QUALITY_MODE,RC_BITRATE_MODE and RC_TIMESTAMP_MODE without enabling skip frame
With the configuration :
av_dict_set(&options, "allow_skip_frames", "1", 0);
I could get rid of this warning, but the movie still does not play. Are there other options that need to be set so that the movie plays in Windows Media Player ?
Thank you for your help
ffprobe output of the file that does play fine in Windows Media Player :
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'test_x264.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
title : retina
encoder : Lavf57.56.100
comment : Creation Date: 2017-03-10 07:47:39.601
Duration: 00:00:04.17, start: 0.000000, bitrate: 17497 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661),
yuv420p, 852x754, 17495 kb/s, 24 fps, 24 tbr, 24k tbn, 48 tbc (default)
Metadata:
handler_name : VideoHandlerffprobe output of the file that does not play in Windows Media Player :
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'test_openh264.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
title : retina
encoder : Lavf57.56.100
comment : Creation Date: 2017-03-10 07:49:27.024
Duration: 00:00:04.17, start: 0.000000, bitrate: 17781 kb/s
Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661),
yuv420p, 852x754, 17779 kb/s, 24 fps, 24 tbr, 24k tbn, 48k tbc (default)
Metadata:
handler_name : VideoHandler -
Revision 2f52decd22 : Inter-frame non-RD mode decision This commit setups a test framework for real-t
10 janvier 2014, par Jingning HanChanged Paths :
Modify /vp9/encoder/vp9_block.h
Modify /vp9/encoder/vp9_encodeframe.c
Add /vp9/encoder/vp9_pickmode.c
Add /vp9/encoder/vp9_pickmode.h
Modify /vp9/encoder/vp9_rdopt.c
Modify /vp9/encoder/vp9_rdopt.h
Modify /vp9/vp9cx.mk
Inter-frame non-RD mode decisionThis commit setups a test framework for real-time coding. It enables
a light motion search for non-RD mode decision purpose.Change-Id : I8bec656331539e963c2b685a70e43e0ae32a6e9d