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Autres articles (78)
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D’autres logiciels intéressants
12 avril 2011, parOn ne revendique pas d’être les seuls à faire ce que l’on fait ... et on ne revendique surtout pas d’être les meilleurs non plus ... Ce que l’on fait, on essaie juste de le faire bien, et de mieux en mieux...
La liste suivante correspond à des logiciels qui tendent peu ou prou à faire comme MediaSPIP ou que MediaSPIP tente peu ou prou à faire pareil, peu importe ...
On ne les connais pas, on ne les a pas essayé, mais vous pouvez peut être y jeter un coup d’oeil.
Videopress
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MediaSPIP Player : problèmes potentiels
22 février 2011, parLe lecteur ne fonctionne pas sur Internet Explorer
Sur Internet Explorer (8 et 7 au moins), le plugin utilise le lecteur Flash flowplayer pour lire vidéos et son. Si le lecteur ne semble pas fonctionner, cela peut venir de la configuration du mod_deflate d’Apache.
Si dans la configuration de ce module Apache vous avez une ligne qui ressemble à la suivante, essayez de la supprimer ou de la commenter pour voir si le lecteur fonctionne correctement : /** * GeSHi (C) 2004 - 2007 Nigel McNie, (...) -
L’agrémenter visuellement
10 avril 2011MediaSPIP est basé sur un système de thèmes et de squelettes. Les squelettes définissent le placement des informations dans la page, définissant un usage spécifique de la plateforme, et les thèmes l’habillage graphique général.
Chacun peut proposer un nouveau thème graphique ou un squelette et le mettre à disposition de la communauté.
Sur d’autres sites (5046)
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Circular Overlay of Video on Another Video using FFMPEG in Android
4 novembre 2018, par kdblueI am trying to overlay Second videos(on Circle) on First video. I tried but i am getting glitches in Video !
My Command is
command = "-i " + this.video1Path.getPath() + " -i " + this.video2Path.getPath() + " -filter_complex [1]trim=end_frame=1,geq=lum_expr='st(3,pow(X-(W/2),2)+pow(Y-(H/2),2));if(lte(ld(3),"
+ (this.mZoomLayout.getZoomedWidth()/2) + "*" + (this.mZoomLayout.getZoomedWidth()/2) + "),255,0)':128:128,format=gray,loop=-1:1,setpts=N/FRAME_RATE/TB[mask];[1][mask]alphamerge,format=rgba,lutrgb=a=if(gte(val\\,16)\\,val)[cutout];[0][cutout]overlay="
+ this.mZoomLayout.getCircleX() + ":" + this.mZoomLayout.getCircleY() + ":enable='between(t,0," + this.videoTwoDuration + ") -c:v libx264 -crf 24 -preset ultrafast " + videoPath.getPath();Example : i want like this
But i am getting glitches in Video
I am using ffmpeg android library :- https://github.com/bravobit/FFmpeg-Android
Note : I tried this links but never worked
https://stackoverflow.com/questions/42518592/circular-movie-overlay-in-ffmpeg (getting glitches)
FFMPEG Log
11-04 19:56:37.505 28420-28420/app.kdblue.com.ffmpegdemo E/ffmpeg Success: ffmpeg version n4.0-39-gda39990 Copyright (c) 2000-2018 the FFmpeg developers
built with gcc 4.9.x (GCC) 20150123 (prerelease)
configuration: --target-os=linux --cross-prefix=/root/bravobit/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/root/bravobit/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-ffprobe --enable-libopus --enable-libvorbis --enable-libfdk-aac --enable-libfreetype --enable-libfribidi --enable-libmp3lame --enable-fontconfig --enable-libvpx --enable-libass --enable-yasm --enable-pthreads --disable-debug --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-linux-perf --disable-doc --disable-shared --enable-static --enable-runtime-cpudetect --enable-nonfree --enable-network --enable-avresample --enable-avformat --enable-avcodec --enable-indev=lavfi --enable-hwaccels --enable-ffmpeg --enable-zlib --enable-gpl --enable-small --enable-nonfree --pkg-config=pkg-config --pkg-config-flags=--static --prefix=/root/bravobit/ffmpeg-android/build/armeabi-v7a --extra-cflags='-I/root/bravobit/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all' --extra-ldflags='-L/root/bravobit/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-cxxflags=
libavutil 56. 14.100 / 56. 14.100
libavcodec 58. 18.100 / 58. 18.100
libavformat 58. 12.100 / 58. 12.100
libavdevice 58. 3.100 / 58. 3.100
libavfilter 7. 16.100 / 7. 16.100
libavresample 4. 0. 0 / 4. 0. 0
libswscale 5. 1.100 / 5. 1.100
libswresample 3. 1.100 / 3. 1.100
libpostproc 55. 1.100 / 55. 1.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/MixVideos/video1_1541341464579.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: isommp42
creation_time : 2018-11-04T14:24:29.000000Z
com.android.version: 8.1.0
com.android.manufacturer: OnePlus
com.android.model: ONE A2003
Duration: 00:00:04.15, start: 0.000000, bitrate: 9983 kb/s
Stream #0:0(eng): Video: h264 (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080, 9978 kb/s, SAR 1:1 DAR 16:9, 29.39 fps, 30 tbr, 90k tbn, 180k tbc (default)
Metadata:
rotate : 90
creation_time : 2018-11-04T14:24:29.000000Z
handler_name : VideoHandle
Side data:
displaymatrix: rotation of -90.00 degrees
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/MixVideos/video2_1541341478507.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: isommp42
creation_time : 2018-11-04T14:24:42.000000Z
com.android.version: 8.1.0
com.android.manufacturer: OnePlus
com.android.model: ONE A2003
Duration: 00:00:02.62, start: 0.000000, bitrate: 9833 kb/s
Stream #1:0(eng): Video: h264 (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080, 9824 kb/s, SAR 1:1 DAR 16:9, 29.73 fps, 30 tbr, 90k tbn, 180k tbc (default)
Metadata:
rotate : 90
creation_time : 2018-11-04T14:24:42.000000Z
handler_name : VideoHandle
Side data:
displaymatrix: rotation of -90.00 degrees
Stream mapping:
Stream #0:0 (h264) -> overlay:main
Stream #1:0 (h264) -> trim
Stream #1:0 (h264) -> alphamerge:main
overlay -> Stream #0:0 (libx264)
Press [q] to stop, [?] for help
[swscaler @ 0xed8a7000] No accelerated colorspace conversion found from yuv420p to rgba.
[libx264 @ 0xf2016c00] using SAR=1/1
[libx264 @ 0xf2016c00] using cpu capabilities: ARMv6 NEON
[libx264 @ 0xf2016c00] profile Constrained Baseline, level 4.0
[libx264 @ 0xf2016c00] 264 - core 152 r2851M ba24899 - H.264/MPEG-4 AVC codec - Copyleft 2003-2017 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=12 lo -
Crop video scale square to round shape -Android
13 septembre 2019, par AdilCurrently I’m developing video editing app, in which i want to overlay video to image i used FFMPEG library and use overlay command and export video to video.mp4 format
Here is done with overlay command :
private void extractImagesVideo() {
File moviesDir = Environment.getExternalStoragePublicDirectory(
Environment.DIRECTORY_PICTURES
);
String filePrefix = "extract_picture";
String fileExtn = ".mp4";
File dir = new File(moviesDir, "VideoEditor");
int fileNo = 0;
while (dir.exists()) {
fileNo++;
dir = new File(moviesDir, "VideoEditor" + fileNo);
}
dir.mkdir();
File dest = new File(dir, filePrefix + "%03d" + fileExtn);
Log.d(TAG, "startTrim: dest: " + dest.getAbsolutePath());
// String complexCommand[]={"-y","-i",mStrImagePath,"-i",mStrVideoPath,"-filter_complex","[0]scale=720:1280:force_original_aspect_ratio=decrease,drawbox=x=10:y=10:w=100:h=100:color=pink@0.5:t=max: (ow-iw)/2:(oh-ih)/2,setsar=1[backd],[backd][1] overlay=x=(main_w-overlay_w)/(main_w-overlay_w):y=(main_h-overlay_h)","-acodec","copy",dest.getAbsolutePath()};
String complexCommand[]={"-y","-i",mStrVideoPath,"-f","lavfi","-i","color=c=black:s=1920x1080","-filter_complex","[0:v]scale=w=0.80*iw:h=0.80*ih[scaled],[1:v][scaled]overlay=x=0.10*main_w:y=0.10*main_h:eof_action=endall[out]","-acodec","copy",dest.getAbsolutePath()};
// String complexCommand[]={"-y","-i",mStrImagePath,"-i",mStrVideoPath,"-filter_complex","[1:v] scale=200:200 [ovr1], [1:v] scale=200:200 [ovrl2], [0:v][ovr1] overlay=25:25:enable='between(t,0,20)' [temp1], [temp1][ovrl2] overlay=50:50:enable='between(t,20,40)'","-acodec","copy",dest.getAbsolutePath()};
// String complexCommand[]={"-y","-i",mStrImagePath,"-i",mStrVideoPath,"-filter_complex","[0]scale=1024:1280:force_original_aspect_ratio=decrease,pad=1024:1280:(ow-iw)/2:(oh-ih)/2,setsar=1[backd],[backd][1] overlay=x=(main_w-overlay_w)/(main_w-overlay_w):y=(main_h-overlay_h):shortest=1","-acodec","copy",dest.getAbsolutePath()};
/* Remove -r 1 if you want to extract all video frames as images from the specified time duration.*/
execFFmpegBinary(complexCommand);
}Issue is video showing square shape i want to crop video into rounded shape, i check almost solutions and check also FFMPEG commands , i found mask overlay on video but isn’t a proper solution
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How can I avoid an ffmpeg out of memory error
21 mars 2021, par SilentfuryI use ffmpeg with complex filtering. Input are different sets of FULLHD surveilance camera videos each 10 to 15 seconds long. Set size (number of videos per set) varies. To remove unchanged frames I apply mpdecimate. To avoid being triggered by moving bushes but still keep objects I want to remain, I apply a complex filter :


- 

- split the video (the original and a dummy to detect motion/stills)
- scale the dummy down (so the 8x8-block-metric of mpdecimate matches the size of moving objects I want to keep)
- add white boxes to dummy to mask unintendedly moving objects
- apply mpdecimate to dummy to remove non-changing frames
- scale dummy back to original size
- overlay the remaining frames of dummy with matching frames of original














All this works fine if the number of input videos is small (less than 100). The memory consupmtion of the ffmpeg process varies somewhere between 2GiB and 5GiB.


If the number of input files gets larger (say 200), the memory consumption suddenly jumps to insane numbers until memory (32GiB plus 33GiB swap) runs out and ffmpeg gets killed. I can not predict if and why this happens. I have one example, where a set of 340 videos worked using 6GiB. Any other set above 100 videos I tried eats all RAM in under two minutes and dies.


There is no particular error message from ffmpeg.


dmesg says :


Out of memory: Kill process 29173 (ffmpeg)
Killed process 29173 (ffmpeg) total-vm:66707800kB



My ffmpeg command :


ffmpeg -f concat -safe 0 -i vidlist -vf 'split=2[full][masked];[masked]scale=w=iw/4:h=ih/4,drawbox=w=51:h=153:x=101:y=0:t=fill:c=white,drawbox=w=74:h=67:x=86:y=49:t=fill:c=white,drawbox=w=51:h=149:x=258:y=0:t=fill:c=white,drawbox=w=13:h=20:x=214:y=103:t=fill:c=white,drawbox=w=29:h=54:x=429:y=40:t=fill:c=white,drawbox=w=35:h=49:x=360:y=111:t=fill:c=white,drawbox=w=26:h=54:x=304:y=92:t=fill:c=white,drawbox=w=48:h=27:x=356:y=105:t=fill:c=white,drawbox=w=30:h=27:x=188:y=124:t=fill:c=white,drawbox=w=50:h=54:x=371:y=7:t=fill:c=white,drawbox=w=18:h=38:x=248:y=107:t=fill:c=white,drawbox=w=21:h=51:x=242:y=33:t=fill:c=white,mpdecimate=hi=64*80:lo=64*40:frac=0.001,scale=w=iw*4:h=ih*4[deduped];[deduped][full]overlay=shortest=1,setpts=N/(15*TB),mpdecimate=hi=64*80:lo=64*50:frac=0.001,setpts=N/(15*TB)' -r 15 -c:v libx265 -preset slower -crf 37 -pix_fmt yuv420p -an result.mkv



ffmpeg version 4.1.6


Debian 4.19.171-2


I hope that my filter can be tuned in some way that achieves the same result but doesn't eat RAM that much - but I have no clue how. Within reasonable limits, I wouldn't mind if processing time suffers. Any hints appreciated.