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Mise à jour de la version 0.1 vers 0.2
24 juin 2013, parExplications des différents changements notables lors du passage de la version 0.1 de MediaSPIP à la version 0.3. Quelles sont les nouveautés
Au niveau des dépendances logicielles Utilisation des dernières versions de FFMpeg (>= v1.2.1) ; Installation des dépendances pour Smush ; Installation de MediaInfo et FFprobe pour la récupération des métadonnées ; On n’utilise plus ffmpeg2theora ; On n’installe plus flvtool2 au profit de flvtool++ ; On n’installe plus ffmpeg-php qui n’est plus maintenu au (...) -
Personnaliser en ajoutant son logo, sa bannière ou son image de fond
5 septembre 2013, parCertains thèmes prennent en compte trois éléments de personnalisation : l’ajout d’un logo ; l’ajout d’une bannière l’ajout d’une image de fond ;
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Ecrire une actualité
21 juin 2013, parPrésentez les changements dans votre MédiaSPIP ou les actualités de vos projets sur votre MédiaSPIP grâce à la rubrique actualités.
Dans le thème par défaut spipeo de MédiaSPIP, les actualités sont affichées en bas de la page principale sous les éditoriaux.
Vous pouvez personnaliser le formulaire de création d’une actualité.
Formulaire de création d’une actualité Dans le cas d’un document de type actualité, les champs proposés par défaut sont : Date de publication ( personnaliser la date de publication ) (...)
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ffmpeg trying to remove the first few seconds of video
21 octobre 2011, par zeroasteriskI'm trying to remove a few seconds off the front of a video stream (audio already excluded), and I'm getting strange results : I would think that for every second I increase -ss by, the resulting file would be a second shorter... that doesn't seem to be the case.
original ==> 01:04:52.84
-ss 19 ==> 01:04:42.84 (diff = 10) [command history shown below]
-ss 20 ==> 01:04:32.84 (diff = 20) [command history shown below]
-ss 21 ==> 01:04:32.84 (diff = 20)
-ss 25 ==> 01:04:32.84 (diff = 20)
-ss 0:0:25.0 ==> 01:04:32.84 (diff = 20)
-ss 0:0:25.5 ==> 01:04:32.84 (diff = 20) [command history shown below]Command :
ffmpeg -ss # -i temp.mp4 -y -vcodec copy temp_croppedFromStart.mp4
Here's the command history for 19 & 20
# ffmpeg -ss 19 -i temp.mp4 -y -vcodec copy temp_croppedFromStart.mp4; ffmpeg -i temp.mp4 2>&1 | grep Duration; ffmpeg -i temp_croppedFromStart.mp4 2>&1 | grep Duration
ffmpeg version N-31809-g9acffed, Copyright (c) 2000-2011 the FFmpeg developers
built on Aug 10 2011 21:25:11 with gcc 4.4.5
configuration: --enable-gpl --enable-version3 --enable-nonfree --enable-postproc --enable-libfaac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxvid --enable-x11grab
libavutil 51. 11. 1 / 51. 11. 1
libavcodec 53. 10. 0 / 53. 10. 0
libavformat 53. 6. 0 / 53. 6. 0
libavdevice 53. 2. 0 / 53. 2. 0
libavfilter 2. 28. 1 / 2. 28. 1
libswscale 2. 0. 0 / 2. 0. 0
libpostproc 51. 2. 0 / 51. 2. 0
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'temp.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
creation_time : 1970-01-01 00:00:00
encoder : Lavf53.6.0
Duration: 01:04:52.84, start: 0.000000, bitrate: 553 kb/s
Stream #0.0(und): Video: h264 (Constrained Baseline), yuv420p, 960x640, 552 kb/s, 25 fps, 25 tbr, 25 tbn, 50 tbc
Metadata:
creation_time : 1970-01-01 00:00:00
Output #0, mp4, to 'temp_croppedFromStart.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
creation_time : 1970-01-01 00:00:00
encoder : Lavf53.6.0
Stream #0.0(und): Video: libx264, yuv420p, 960x640, q=2-31, 552 kb/s, 25 tbn, 25 tbc
Metadata:
creation_time : 1970-01-01 00:00:00
Stream mapping:
Stream #0.0 -> #0.0
Press [q] to stop, [?] for help
frame=97071 fps=42523 q=-1.0 Lsize= 262684kB time=01:04:33.84 bitrate= 555.5kbits/s
video:261923kB audio:0kB global headers:0kB muxing overhead 0.290418%
Duration: 01:04:52.84, start: 0.000000, bitrate: 553 kb/s
Duration: 01:04:42.84, start: 0.000000, bitrate: 554 kb/s
# ffmpeg -ss 20 -i temp.mp4 -y -vcodec copy temp_croppedFromStart.mp4; ffmpeg -i temp.mp4 2>&1 | grep Duration; ffmpeg -i temp_croppedFromStart.mp4 2>&1 | grep Duration
ffmpeg version N-31809-g9acffed, Copyright (c) 2000-2011 the FFmpeg developers
built on Aug 10 2011 21:25:11 with gcc 4.4.5
configuration: --enable-gpl --enable-version3 --enable-nonfree --enable-postproc --enable-libfaac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxvid --enable-x11grab
libavutil 51. 11. 1 / 51. 11. 1
libavcodec 53. 10. 0 / 53. 10. 0
libavformat 53. 6. 0 / 53. 6. 0
libavdevice 53. 2. 0 / 53. 2. 0
libavfilter 2. 28. 1 / 2. 28. 1
libswscale 2. 0. 0 / 2. 0. 0
libpostproc 51. 2. 0 / 51. 2. 0
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'temp.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
creation_time : 1970-01-01 00:00:00
encoder : Lavf53.6.0
Duration: 01:04:52.84, start: 0.000000, bitrate: 553 kb/s
Stream #0.0(und): Video: h264 (Constrained Baseline), yuv420p, 960x640, 552 kb/s, 25 fps, 25 tbr, 25 tbn, 50 tbc
Metadata:
creation_time : 1970-01-01 00:00:00
Output #0, mp4, to 'temp_croppedFromStart.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
creation_time : 1970-01-01 00:00:00
encoder : Lavf53.6.0
Stream #0.0(und): Video: libx264, yuv420p, 960x640, q=2-31, 552 kb/s, 25 tbn, 25 tbc
Metadata:
creation_time : 1970-01-01 00:00:00
Stream mapping:
Stream #0.0 -> #0.0
Press [q] to stop, [?] for help
frame=96821 fps=47168 q=-1.0 Lsize= 262003kB time=01:04:32.84 bitrate= 554.2kbits/s
video:261244kB audio:0kB global headers:0kB muxing overhead 0.290410%
Duration: 01:04:52.84, start: 0.000000, bitrate: 553 kb/s
Duration: 01:04:32.84, start: 0.000000, bitrate: 554 kb/s
# ffmpeg -ss 0:0:25.5 -i temp.mp4 -y -vcodec copy temp_croppedFromStart.mp4; ffmpeg -i temp.mp4 2>&1 | grep Duration; ffmpeg -i temp_croppedFromStart.mp4 2>&1 | grep Duration
ffmpeg version N-31809-g9acffed, Copyright (c) 2000-2011 the FFmpeg developers
built on Aug 10 2011 21:25:11 with gcc 4.4.5
configuration: --enable-gpl --enable-version3 --enable-nonfree --enable-postproc --enable-libfaac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxvid --enable-x11grab
libavutil 51. 11. 1 / 51. 11. 1
libavcodec 53. 10. 0 / 53. 10. 0
libavformat 53. 6. 0 / 53. 6. 0
libavdevice 53. 2. 0 / 53. 2. 0
libavfilter 2. 28. 1 / 2. 28. 1
libswscale 2. 0. 0 / 2. 0. 0
libpostproc 51. 2. 0 / 51. 2. 0
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'temp.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
creation_time : 1970-01-01 00:00:00
encoder : Lavf53.6.0
Duration: 01:04:52.84, start: 0.000000, bitrate: 553 kb/s
Stream #0.0(und): Video: h264 (Constrained Baseline), yuv420p, 960x640, 552 kb/s, 25 fps, 25 tbr, 25 tbn, 50 tbc
Metadata:
creation_time : 1970-01-01 00:00:00
Output #0, mp4, to 'temp_croppedFromStart.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
creation_time : 1970-01-01 00:00:00
encoder : Lavf53.6.0
Stream #0.0(und): Video: libx264, yuv420p, 960x640, q=2-31, 552 kb/s, 25 tbn, 25 tbc
Metadata:
creation_time : 1970-01-01 00:00:00
Stream mapping:
Stream #0.0 -> #0.0
Press [q] to stop, [?] for help
frame=96821 fps=45920 q=-1.0 Lsize= 262003kB time=01:04:27.32 bitrate= 555.0kbits/s
video:261244kB audio:0kB global headers:0kB muxing overhead 0.290424%
Duration: 01:04:52.84, start: 0.000000, bitrate: 553 kb/s
Duration: 01:04:32.84, start: 0.000000, bitrate: 554 kb/s -
Best way to load in a video and to grab images using c++
17 octobre 2011, par SebI am looking for a fast way to load in a video file and to create images from them at certain intervals ( every second, every minute, every hour, etc.).
I tried using DirectShow, but it just ran too slow for me to start the video file and move to a certain location to get data and to save it out to an image. Even if I disabled the reference clock. Tried OpenCV, but it has trouble opening the AVI file unless I know the exact codec information. So if I know a way to get the codec information out from OpenCV I may give it another shot. I tried to use FFMPEG, but I don't have as much control over it as well as I would wish.
Any advice would be greatly appreciated. This is being developed on a Windows box since it has to be hosted on a Windows box.
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How to add text to a video with ffmpeg and python
25 janvier 2013, par Jared GlassI've been trying to add text to an avi with ffmpeg and I can't seem to get it right.
Please help :
import subprocess
ffmpeg = "C:\\ffmpeg_10_6_11.exe"
inVid = "C:\\test_in.avi"
outVid = "C:\\test_out.avi"
proc = subprocess.Popen(ffmpeg + " -i " + inVid + " -vf drawtext=fontfile='arial.ttf'|text='test' -y " + outVid , shell=True, stderr=subprocess.PIPE)
proc.wait()
print proc.stderr.read()