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Autres articles (103)
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Encoding and processing into web-friendly formats
13 avril 2011, parMediaSPIP automatically converts uploaded files to internet-compatible formats.
Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
All uploaded files are stored online in their original format, so you can (...) -
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 (...) -
Gestion de la ferme
2 mars 2010, parLa ferme est gérée dans son ensemble par des "super admins".
Certains réglages peuvent être fais afin de réguler les besoins des différents canaux.
Dans un premier temps il utilise le plugin "Gestion de mutualisation"
Sur d’autres sites (4654)
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Mingw-w64 builded FFmpeg doesn't show any usage information
26 octobre 2013, par user1240328First I wanted to modificate ffplay according to my requirments. Then I noticed that original ffplay from my build can't play some video files, but it didn't write any message to console. Then I noticed that ffmpeg also don't write any usage message when I run it without params. But it works. If I run it from terminal it's like running asynchronously ! The terminal just shows next row. I mean it asks for a next command. But the
ffmpeg
process is visible in task manager and it writes the output video file what I had requested !I created following souce file. I have modified the Makefile. So it have built the exe-file works just the same way. I have no idea how it can be.
#include
#include "cmdutils.h"
const char program_name[] = "hello";
const int program_birth_year = 2013;
void show_help_default(const char *opt, const char *arg)
{
printf("zxcvbnm\n");
}
int main(int argc, char **argv)
{
printf("1234567890\n");
return 0;
}I want to prevent this behavior.
I want to make printf working in traditional manner.
How I build FFmpeg :
PKG_CONFIG_PATH=/home/developer/workspace/MinGW32fs/lib/pkgconfig/ \
SDL_CONFIG=/home/developer/workspace/MinGW32fs/bin/sdl-config \
./configure \
--prefix=/home/developer/workspace/MinGW32fs \
--extra-ldflags="-L/home/developer/workspace/MinGW32fs/lib" \
--extra-cflags="-I/home/developer/workspace/MinGW32fs/include" \
--arch=x86 --target-os=mingw32 --cross-prefix=i686-w64-mingw32- \
--pkg-config=pkg-config --enable-libtheora --enable-libvorbis --enable-libvpx \
--enable-outdev=sdl --enable-shared --disable-static \
--disable-doc --disable-manpages --disable-podpages
make -
Mingw-w64 - printf does not work
27 décembre 2013, par Gosha U.First I wanted to modificate ffplay according to my requirments. Then I noticed that original ffplay from my build can't play some video files, but it didn't write any message to console. Then I noticed that ffmpeg also don't write any usage message when I run it without params. But it works. If I run it from terminal it's like running asynchronously ! The terminal just shows next row. I mean it asks for a next command. But the
ffmpeg
process is visible in task manager and it writes the output video file what I had requested !I created following souce file. I have modified the Makefile. So it have built the exe-file works just the same way. I have no idea how it can be.
#include
#include "cmdutils.h"
const char program_name[] = "hello";
const int program_birth_year = 2013;
void show_help_default(const char *opt, const char *arg)
{
printf("zxcvbnm\n");
}
int main(int argc, char **argv)
{
printf("1234567890\n");
return 0;
}And after that I created real hello world app with MinGW-w64 and qmake without eny extra libs. And its printf does not work.
I want to prevent this behavior.
I want to make printf working in traditional manner.
How I build FFmpeg :
PKG_CONFIG_PATH=/home/developer/workspace/MinGW32fs/lib/pkgconfig/ \
SDL_CONFIG=/home/developer/workspace/MinGW32fs/bin/sdl-config \
./configure \
--prefix=/home/developer/workspace/MinGW32fs \
--extra-ldflags="-L/home/developer/workspace/MinGW32fs/lib" \
--extra-cflags="-I/home/developer/workspace/MinGW32fs/include" \
--arch=x86 --target-os=mingw32 --cross-prefix=i686-w64-mingw32- \
--pkg-config=pkg-config --enable-libtheora --enable-libvorbis --enable-libvpx \
--enable-outdev=sdl --enable-shared --disable-static \
--disable-doc --disable-manpages --disable-podpages
make -
Revision 5ade423774 : Removes conditional statements from band getting Implements scan order to band
6 novembre 2013, par Deb MukherjeeChanged Paths :
Modify /vp9/common/vp9_entropy.h
Modify /vp9/decoder/vp9_decodframe.c
Modify /vp9/decoder/vp9_detokenize.c
Modify /vp9/decoder/vp9_detokenize.h
Modify /vp9/decoder/vp9_onyxd_int.h
Modify /vp9/encoder/vp9_block.h
Modify /vp9/encoder/vp9_encodemb.c
Modify /vp9/encoder/vp9_onyx_if.c
Modify /vp9/encoder/vp9_tokenize.c
Removes conditional statements from band gettingImplements scan order to band map with arrays in both the encoder
and decoder to remove conditional statements.Encoding seems to be about 1% faster at speed 0, tested on football.
Decoding seems to be about 0.5-1% faster on a set of 25 videos.Change-Id : Idb233ca0b9e0efd790e30880642e8717e1c5c8dd