
Recherche avancée
Médias (1)
-
Revolution of Open-source and film making towards open film making
6 octobre 2011, par
Mis à jour : Juillet 2013
Langue : English
Type : Texte
Autres articles (59)
-
Support de tous types de médias
10 avril 2011Contrairement à beaucoup de logiciels et autres plate-formes modernes de partage de documents, MediaSPIP a l’ambition de gérer un maximum de formats de documents différents qu’ils soient de type : images (png, gif, jpg, bmp et autres...) ; audio (MP3, Ogg, Wav et autres...) ; vidéo (Avi, MP4, Ogv, mpg, mov, wmv et autres...) ; contenu textuel, code ou autres (open office, microsoft office (tableur, présentation), web (html, css), LaTeX, Google Earth) (...)
-
Support audio et vidéo HTML5
10 avril 2011MediaSPIP utilise les balises HTML5 video et audio pour la lecture de documents multimedia en profitant des dernières innovations du W3C supportées par les navigateurs modernes.
Pour les navigateurs plus anciens, le lecteur flash Flowplayer est utilisé.
Le lecteur HTML5 utilisé a été spécifiquement créé pour MediaSPIP : il est complètement modifiable graphiquement pour correspondre à un thème choisi.
Ces technologies permettent de distribuer vidéo et son à la fois sur des ordinateurs conventionnels (...) -
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 (...)
Sur d’autres sites (9446)
-
How to fix "fatal error : x.264 no such file or directory"
24 avril 2019, par user11340790I wrote a makefile which builds a C program attaching the x.264 header. After trying to execute the makefile in terminal I receive the fatal error :
"example.c line [line of #include ] x264.h no such file or directory". Below you can find the C code and makefile (located in the same folder, the library - containing the x264.pc file- is in the folder libx264 of the parent folder). I would be very grateful if you could help with the linkage.Makefile :
CC = gcc
CFLAGS = -c -Wall `export PKG_CONFIG_PATH=../libx264 && pkg-config --cflags x264`
LDFLAGS = -static `export PKG_CONFIG_PATH=../libx264 && pkg-config --libs --static libx264`
all: Release
Debug: CFLAGS += -g
Debug: example
Release: example
test: example.o
$(CC) -o example example.o $(LDFLAGS)
test.o: example.c
$(CC) $(CFLAGS) example.c -o example.o
clean:
rm -f example.o exampleexample.c code
#include
#include
int main( int argc, char **argv )
{
int width, height;
return 0;
} -
How to fix "fatal error : x.264 no such file or directory"
24 avril 2019, par user11340790I wrote a makefile which builds a C program attaching the x.264 header. After trying to execute the makefile in terminal I receive the fatal error :
"example.c line [line of #include ] x264.h no such file or directory". Below you can find the C code and makefile (located in the same folder, the library - containing the x264.pc file- is in the folder libx264 of the parent folder). I would be very grateful if you could help with the linkage.



Makefile :



CC = gcc

 CFLAGS = -c -Wall `export PKG_CONFIG_PATH=../libx264 && pkg-config --cflags x264`
 LDFLAGS = -static `export PKG_CONFIG_PATH=../libx264 && pkg-config --libs --static libx264`


 all: Release

 Debug: CFLAGS += -g
 Debug: example

 Release: example

 test: example.o
 $(CC) -o example example.o $(LDFLAGS)

 test.o: example.c
 $(CC) $(CFLAGS) example.c -o example.o

 clean:
 rm -f example.o example




example.c code



#include 
 #include 
 int main( int argc, char **argv )
 {
 int width, height;
 return 0;
 }



-
Why does this ffmpeg filter result in an "Invalid Size" error ?
10 avril 2019, par pdoherty926Why do I see this error message :
[Parsed_scale_0 @ 0x559a264c28a0] Invalid size ’if(gt(iw’
[AVFilterGraph @ 0x559a268a19e0] Error initializing filter ’scale’
with args ’if(gt(iw’ Error initializing complex filters.
Invalid argument
when trying to crop a video using ffmpeg and the following complex filter :
ffmpeg -f mp4 -ss 01:24 \
-i https://storage.googleapis.com/bucket/video.mp4 \
-y \
-filter_complex scale='if(gt(iw,ih),-1,616):if(gt(iw,ih),1440,-1)', crop=1440:616 \
-an \
-vcodec libx264 \
-r 60 -pix_fmt yuv420p \
-movflags faststart \
-f mp4 \
-t 1 \
/tmp/asset.1554913197962.mp4In case it’s relevant, here’s the output of ffprobe :
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'https://storage.googleapis.com/bucket/video.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf57.56.101
Duration: 00:02:53.76, start: 0.000000, bitrate: 2910 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 2777 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 125 kb/s (default)
Metadata:
handler_name : SoundHandler
"streams": [
{
"index": 0,
"codec_name": "h264",
"codec_long_name": "H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10",
"profile": "High",
"codec_type": "video",
"codec_time_base": "1001/60000",
"codec_tag_string": "avc1",
"codec_tag": "0x31637661",
"width": 1920,
"height": 1080,
"coded_width": 1920,
"coded_height": 1080,
"has_b_frames": 1,
"sample_aspect_ratio": "1:1",
"display_aspect_ratio": "16:9",
"pix_fmt": "yuv420p",
"level": 40,
"color_range": "tv",
"color_space": "bt709",
"color_transfer": "bt709",
"color_primaries": "bt709",
"chroma_location": "left",
"refs": 1,
"is_avc": "true",
"nal_length_size": "4",
"r_frame_rate": "30000/1001",
"avg_frame_rate": "30000/1001",
"time_base": "1/90000",
"start_pts": 0,
"start_time": "0.000000",
"duration_ts": 15633630,
"duration": "173.707000",
"bit_rate": "2777254",
"bits_per_raw_sample": "8",
"nb_frames": "5206",
"disposition": {
"default": 1,
"dub": 0,
"original": 0,
"comment": 0,
"lyrics": 0,
"karaoke": 0,
"forced": 0,
"hearing_impaired": 0,
"visual_impaired": 0,
"clean_effects": 0,
"attached_pic": 0,
"timed_thumbnails": 0
},
"tags": {
"language": "und",
"handler_name": "VideoHandler"
}
},
{
"index": 1,
"codec_name": "aac",
"codec_long_name": "AAC (Advanced Audio Coding)",
"profile": "LC",
"codec_type": "audio",
"codec_time_base": "1/44100",
"codec_tag_string": "mp4a",
"codec_tag": "0x6134706d",
"sample_fmt": "fltp",
"sample_rate": "44100",
"channels": 2,
"channel_layout": "stereo",
"bits_per_sample": 0,
"r_frame_rate": "0/0",
"avg_frame_rate": "0/0",
"time_base": "1/44100",
"start_pts": 0,
"start_time": "0.000000",
"duration_ts": 7662596,
"duration": "173.755011",
"bit_rate": "125588",
"max_bit_rate": "125588",
"nb_frames": "7483",
"disposition": {
"default": 1,
"dub": 0,
"original": 0,
"comment": 0,
"lyrics": 0,
"karaoke": 0,
"forced": 0,
"hearing_impaired": 0,
"visual_impaired": 0,
"clean_effects": 0,
"attached_pic": 0,
"timed_thumbnails": 0
},
"tags": {
"language": "eng",
"handler_name": "SoundHandler"
}
}
],
"format": {
"filename": "https://storage.googleapis.com/bucket/video.mp4",
"nb_streams": 2,
"nb_programs": 0,
"format_name": "mov,mp4,m4a,3gp,3g2,mj2",
"format_long_name": "QuickTime / MOV",
"start_time": "0.000000",
"duration": "173.755000",
"size": "63209767",
"bit_rate": "2910294",
"probe_score": 100,
"tags": {
"major_brand": "isom",
"minor_version": "512",
"compatible_brands": "isomiso2avc1mp41",
"encoder": "Lavf57.56.101"
}
}
}