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Autres articles (37)
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La sauvegarde automatique de canaux SPIP
1er avril 2010, parDans le cadre de la mise en place d’une plateforme ouverte, il est important pour les hébergeurs de pouvoir disposer de sauvegardes assez régulières pour parer à tout problème éventuel.
Pour réaliser cette tâche on se base sur deux plugins SPIP : Saveauto qui permet une sauvegarde régulière de la base de donnée sous la forme d’un dump mysql (utilisable dans phpmyadmin) mes_fichiers_2 qui permet de réaliser une archive au format zip des données importantes du site (les documents, les éléments (...) -
Script d’installation automatique de MediaSPIP
25 avril 2011, parAfin de palier aux difficultés d’installation dues principalement aux dépendances logicielles coté serveur, un script d’installation "tout en un" en bash a été créé afin de faciliter cette étape sur un serveur doté d’une distribution Linux compatible.
Vous devez bénéficier d’un accès SSH à votre serveur et d’un compte "root" afin de l’utiliser, ce qui permettra d’installer les dépendances. Contactez votre hébergeur si vous ne disposez pas de cela.
La documentation de l’utilisation du script d’installation (...) -
Utilisation et configuration du script
19 janvier 2011, parInformations spécifiques à la distribution Debian
Si vous utilisez cette distribution, vous devrez activer les dépôts "debian-multimedia" comme expliqué ici :
Depuis la version 0.3.1 du script, le dépôt peut être automatiquement activé à la suite d’une question.
Récupération du script
Le script d’installation peut être récupéré de deux manières différentes.
Via svn en utilisant la commande pour récupérer le code source à jour :
svn co (...)
Sur d’autres sites (5472)
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FFMPEG command to crop and transpose video comes out zoomed in bad quality
15 juillet 2015, par BrianI’m trying to convert an mp4 video with dimensions usually 960x720 into a sqaure 480:480 video but it comes out looking squished usually, the command is
"-y -i %s -vf crop=480:480,transpose=%d -threads 5 -metadata:s:v rotate=0 -c:v libx264 -crf 27 -preset ultrafast -c:a copy -bsf:a aac_adtstoasc %s";
Am I missing something, do I need to down scale first or something ?
**EDIT adding full console output. The ffmpeg command is updated, but the goal still remains the same, take an arbitrary video and square crop it
07-14 22:30:32.813: D/ffmpeg(30354): -y -i /data/data/com.myapp.app/cache:temp/i7h4ajm0nim1mbcnrqotvrhhsc.mp4 -vf scale=iw*sar:ih,transpose=1 -threads 5 -metadata:s:v rotate=0 -c:v libx264 -crf 27 -preset ultrafast -c:a copy -bsf:a aac_adtstoasc -aspect 1:1 /data/data/com.myapp.app/cache:temp/p1t3bhs0oa3lpqa67g5i9ninm9.ts
07-14 22:30:32.903: D/ffmpeg(30354): new time reamining 9283
07-14 22:30:32.913: D/FFmpeg(30354): Running publishing updates method
07-14 22:30:35.963: D/ffmpeg(30354): WARNING: linker: /data/data/com.myapp.app/files/ffmpeg has text relocations. This is wasting memory and prevents security hardening. Please fix.
07-14 22:30:35.963: D/ffmpeg(30354): ffmpeg version n2.4.2 Copyright (c) 2000-2014 the FFmpeg developers
07-14 22:30:35.963: D/ffmpeg(30354): built on Jun 3 2015 21:56:01 with gcc 4.8 (GCC)
07-14 22:30:35.963: D/ffmpeg(30354): configuration: --target-os=linux --cross-prefix=/Users/Brian1/development/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/Users/Brian1/development/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-small --enable-libx264 --enable-pthreads --disable-muxers --enable-muxer=mpegts --enable-muxer=mp4 --disable-demuxers --enable-demuxer=mpegts --enable-demuxer=mov --enable-demuxer=mpeg --enable-demuxer=mp4 --disable-debug --disable-decoders --enable-decoder=h264 --enable-decoder=aac --disable-devices --disable-encoders --enable-encoder=libx264 --disable-network --disable-ffserver --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --enable-yasm --disable-doc --disable-shared --enable-static --pkg-config=/Users/Brian1/development/ffmpeg-android/ffmpeg-pkg-config --prefix=/Users/Brian1/development/ffmpeg-android/build/armeabi-v7a-neon --extra-cflags='-I/Users/Brian1/development/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all -mfpu=neon' --extra-ldflags='-L/Users/Brian1/development/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs=-lm --extra-cxxflags=
07-14 22:30:35.963: D/ffmpeg(30354): libavutil 54. 7.100 / 54. 7.100
07-14 22:30:35.963: D/ffmpeg(30354): libavcodec 56. 1.100 / 56. 1.100
07-14 22:30:35.963: D/ffmpeg(30354): libavformat 56. 4.101 / 56. 4.101
07-14 22:30:35.963: D/ffmpeg(30354): libavdevice 56. 0.100 / 56. 0.100
07-14 22:30:35.963: D/ffmpeg(30354): libavfilter 5. 1.100 / 5. 1.100
07-14 22:30:35.963: D/ffmpeg(30354): libswscale 3. 0.100 / 3. 0.100
07-14 22:30:35.963: D/ffmpeg(30354): libswresample 1. 1.100 / 1. 1.100
07-14 22:30:35.963: D/ffmpeg(30354): libpostproc 53. 0.100 / 53. 0.100
07-14 22:30:35.963: D/ffmpeg(30354): Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/data/data/com.myapp.app/cache:temp/i7h4ajm0nim1mbcnrqotvrhhsc.mp4':
07-14 22:30:35.963: D/ffmpeg(30354): Metadata:
07-14 22:30:35.963: D/ffmpeg(30354): major_brand : mp42
07-14 22:30:35.963: D/ffmpeg(30354): minor_version : 0
07-14 22:30:35.963: D/ffmpeg(30354): compatible_brands: isommp42
07-14 22:30:35.963: D/ffmpeg(30354): creation_time : 2015-07-15 05:30:32
07-14 22:30:35.963: D/ffmpeg(30354): Duration: 00:00:02.75, start: 0.000000, bitrate: 9315 kb/s
07-14 22:30:35.963: D/ffmpeg(30354): Stream #0:0(eng): Video: h264 (avc1 / 0x31637661), yuv420p, 960x720, 10062 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 180k tbc (default)
07-14 22:30:35.963: D/ffmpeg(30354): Metadata:
07-14 22:30:35.963: D/ffmpeg(30354): rotate : 90
07-14 22:30:35.963: D/ffmpeg(30354): creation_time : 2015-07-15 05:30:32
07-14 22:30:35.963: D/ffmpeg(30354): handler_name : VideoHandle
07-14 22:30:35.963: D/ffmpeg(30354): Side data:
07-14 22:30:35.963: D/ffmpeg(30354): displaymatrix: rotation of -90.00 degrees
07-14 22:30:35.963: D/ffmpeg(30354): Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 151 kb/s (default)
07-14 22:30:35.963: D/ffmpeg(30354): Metadata:
07-14 22:30:35.963: D/ffmpeg(30354): creation_time : 2015-07-15 05:30:32
07-14 22:30:35.963: D/ffmpeg(30354): handler_name : SoundHandle
07-14 22:30:35.963: D/ffmpeg(30354): [libx264 @ 0xb6808800] using SAR=4/3
07-14 22:30:35.963: D/ffmpeg(30354): [libx264 @ 0xb6808800] using cpu capabilities: none!
07-14 22:30:35.963: D/ffmpeg(30354): [libx264 @ 0xb6808800] profile Constrained Baseline, level 3.1
07-14 22:30:35.963: D/ffmpeg(30354): [adts @ 0xb685b000] Using AVStream.codec.time_base as a timebase hint to the muxer is deprecated. Set AVStream.time_base instead.
07-14 22:30:35.963: D/ffmpeg(30354): Output #0, mpegts, to '/data/data/com.myapp.app/cache:temp/p1t3bhs0oa3lpqa67g5i9ninm9.ts':
07-14 22:30:35.963: D/ffmpeg(30354): Metadata:
07-14 22:30:35.963: D/ffmpeg(30354): major_brand : mp42
07-14 22:30:35.963: D/ffmpeg(30354): minor_version : 0
07-14 22:30:35.963: D/ffmpeg(30354): compatible_brands: isommp42
07-14 22:30:35.963: D/ffmpeg(30354): encoder : Lavf56.4.101
07-14 22:30:35.963: D/ffmpeg(30354): Stream #0:0(eng): Video: h264 (libx264), yuv420p, 720x960 [SAR 4:3 DAR 1:1], q=-1--1, 29.97 fps, 90k tbn, 29.97 tbc (default)
07-14 22:30:35.963: D/ffmpeg(30354): Metadata:
07-14 22:30:35.963: D/ffmpeg(30354): handler_name : VideoHandle
07-14 22:30:35.963: D/ffmpeg(30354): creation_time : 2015-07-15 05:30:32
07-14 22:30:35.963: D/ffmpeg(30354): rotate : 0
07-14 22:30:35.963: D/ffmpeg(30354): encoder : Lavc56.1.100 libx264
07-14 22:30:35.963: D/ffmpeg(30354): Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, 151 kb/s (default)
07-14 22:30:35.963: D/ffmpeg(30354): Metadata:
07-14 22:30:35.963: D/ffmpeg(30354): creation_time : 2015-07-15 05:30:32
07-14 22:30:35.963: D/ffmpeg(30354): handler_name : SoundHandle
07-14 22:30:35.963: D/ffmpeg(30354): Stream mapping:
07-14 22:30:35.963: D/ffmpeg(30354): Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
07-14 22:30:35.963: D/ffmpeg(30354): Stream #0:1 -> #0:1 (copy)
07-14 22:30:35.963: D/ffmpeg(30354): Press [q] to stop, [?] for help
07-14 22:30:35.963: D/ffmpeg(30354): frame= 17 fps=0.0 q=27.0 size= 0kB time=00:00:00.36 bitrate= 0.0kbits/s
07-14 22:30:35.963: D/ffmpeg(30354): frame= 33 fps= 32 q=27.0 size= 164kB time=00:00:01.15 bitrate=1163.1kbits/s
07-14 22:30:35.963: D/ffmpeg(30354): frame= 46 fps= 30 q=29.0 size= 213kB time=00:00:01.33 b -
ProcessBuilder is executing last
8 juillet 2015, par RyanI have a segment of code something like this
File f = new File("Audio/Testing/mbgitr.wav");
try {
ProcessBuilder pb = new ProcessBuilder("bash/extractAudio.sh", f.getAbsolutePath());
pb.inheritIO();
pb.start();
}catch(IOException e){
System.out.println("Oh no!");
}
System.out.println(new File("Audio/mbgitr.wav").exists());The bash file converts the audio file to a different format/sample rate and outputs it to the folder Audio. But whenever I run this script, I get the following output :
/home/Ryan/Development/Java/Test/Audio/Testing/mbgitr.wav
mbgitr.wav
/home/Ryan/Development/Java/Test
false
ffmpeg version 2.6.2 Copyright (c) 2000-2015 the FFmpeg developers
[more ffmpeg output]
Process finished with exit code 0It seems that the line of code testing if the file exists is executing before the code running the script. If I were to run the program again, it would ouput "true" because the file was already created in the last iteration. Is there a way to get the file called by the ProcessBuilder to execute first ? Thanks in advance !
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FFmpeg - Unrecognized option 'map [outv]'
11 juin 2015, par Jon GI am merging some video files with FFmpeg and having an issue with my custom build. I’m using the following Java code for wrapping the ffmpeg command :
List<string> cmds = new ArrayList<>();
cmds.add("ffmpeg");
cmds.add("-i");
cmds.add("input1.mp4");
...
cmds.add("-map [outv]");
cmds.add("-map [a]");
...
cmds.add("output.mp4");
ProcessBuilder pb = new ProcessBuilder(cmds);
pb.directory(fileExec);
Process process = pb.start();
int exitVal = process.waitFor();
</string>The command I am using is (abbreviated
filter_complex
) :ffmpeg -i input1.mp4 -i input2.mp4 -filter_complex “... [bla1][bla2]overlay=main_w-overlay_w:main_h-overlay_h:format=yuv420[outv]” -c:v libx264 -preset ultrafast -b:v 45000k -aspect 1.7777778 -map [outv] -map [a] -c:a libfdk_aac -ac 2 -b:a 128k -t 24 output.mp4
I get the error :
Unrecognized option 'map [outv]'.
Am I missing a configuration option to include map ? Where would I find this information of what options are required for the map command ? Or is my ffmpeg just too old like lots of the other similar questions ? 2015-02-25 is pretty recent !
Full command :
ffmpeg -y -i VID_20150609_154943_5583.mp4 -i VID_20150609_154943_24253.mp4 -i VID_20150609_154943_16083.mp4 -i stamp.png -f lavfi -i color=black -filter_complex " [0:v]scale=iw*min(1280/iw\,720/ih):ih*min(1280/iw\,720/ih),pad=1280:720:(ow-iw*min(ow/iw\,oh/ih))/2:(oh-ih*min(ow/iw\,oh/ih))/2,format=pix_fmts=yuva420p,fade=t=out:st=7.99:d=2:alpha=1,setpts=expr=PTS-STARTPTS[va0] ; [0:a]afade=t=out:st=7.99:d=2[a0] ; [1:v]scale=iw*min(1280/iw\,720/ih):ih*min(1280/iw\,720/ih),pad=1280:720:(ow-iw*min(ow/iw\,oh/ih))/2:(oh-ih*min(ow/iw\,oh/ih))/2,format=pix_fmts=yuva420p,fade=t=in:st=0:d=2:alpha=1,fade=t=out:st=15.98:d=2:alpha=1,setpts=expr=PTS-STARTPTS+7.99/TB[va1] ; [1:a]afade=t=in:st=0:d=2,afade=t=out:st=15.98:d=2[a1] ; aevalsrc=0:d=7.99[s1] ; [s1][a1]concat=n=2:v=0:a=1[ac1] ; [2:v]scale=iw*min(1280/iw\,720/ih):ih*min(1280/iw\,720/ih),pad=1280:720:(ow-iw*min(ow/iw\,oh/ih))/2:(oh-ih*min(ow/iw\,oh/ih))/2,format=pix_fmts=yuva420p,fade=t=in:st=0:d=2:alpha=1,setpts=expr=PTS-STARTPTS+15.98/TB[va2] ; [2:a]afade=t=in:st=0:d=2[a2] ; aevalsrc=0:d=15.98[s2] ; [s2][a2]concat=n=2:v=0:a=1[ac2] ; [4:v]scale=1280x720,trim=duration=23.97[over0] ; [a0][ac1][ac2]amix=inputs=3[a]; [over0][va0]overlay[over1];[over1][va1]overlay[over2];[over2][va2]overlay[over3] ; [over3][3:v]overlay=main_w-overlay_w:main_h-overlay_h:format=yuv420[outv] " -c:v libx264 -preset ultrafast -b:v 45000k -aspect 1.7777778 -map [outv] -map [a] -c:a libfdk_aac -ac 2 -b:a 128k -t 23.97 VID_20150609_155417.mp4
ffmpeg version git-2015-02-25-b0d3322 Copyright (c) 2000-2015 the FFmpeg developers
built with gcc 4.8 (GCC)
configuration: --arch=arm --cpu=cortex-a8 --target-os=linux --enable-runtime-cpudetect --enable-pic --disable-shared --enable-static --cross-prefix=/home/jon/Development/android-ndk-r10d/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi- --enable-cross-compile --sysroot=/home/jon/Development/android-ndk-r10d/platforms/android-9/arch-arm/ --extra-cflags='-I../x264 -mfloat-abi=softfp -mfpu=neon -fPIE -pie' --extra-ldflags='-L../x264 -fPIE -pie' --enable-version3 --enable-gpl --disable-doc --enable-yasm --disable-decoders --enable-decoder='mpeg4,aac,h264,mpegvideo,mpeg1video,mpeg2video,png,mjpeg' --disable-encoders --enable-encoder='mpeg4,aac,h264,libx264,mpeg1video,mpeg2video,png' --disable-parsers --enable-parser='aac,mpeg4video,ac3,h261,h264,vc1,mpegvideo' --disable-demuxers --enable-demuxer='aac,h264,mpegvideo,m4v,mov,vc1,mp4,concat,image2' --disable-muxers --enable-muxer='h264,mpeg1video,mpeg2video,m4v,mov,vc1,md5,mp4' --enable-protocols --enable-indev='v4l,v4l2' --disable-filters --enable-filter='aresample,scale,movie,overlay' --enable-avfilter --disable-indevs --enable-indev=lavfi --disable-outdevs --enable-hwaccels --enable-ffmpeg --disable-ffplay --disable-ffprobe --disable-ffserver --disable-symver --enable-network --enable-libx264 --enable-zlib
libavutil 54. 19.100 / 54. 19.100
libavcodec 56. 26.100 / 56. 26.100
libavformat 56. 23.105 / 56. 23.105
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 11.101 / 5. 11.101
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 3.100 / 53. 3.100
Unrecognized option 'map [outv]'.