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La conservation du net art au musée. Les stratégies à l’œuvre
26 mai 2011
Mis à jour : Juillet 2013
Langue : français
Type : Texte
Autres articles (94)
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MediaSPIP v0.2
21 juin 2013, parMediaSPIP 0.2 est la première version de MediaSPIP stable.
Sa date de sortie officielle est le 21 juin 2013 et est annoncée ici.
Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
Comme pour la version précédente, il est nécessaire d’installer manuellement l’ensemble des dépendances logicielles sur le serveur.
Si vous souhaitez utiliser cette archive pour une installation en mode ferme, il vous faudra également procéder à d’autres modifications (...) -
Organiser par catégorie
17 mai 2013, parDans MédiaSPIP, une rubrique a 2 noms : catégorie et rubrique.
Les différents documents stockés dans MédiaSPIP peuvent être rangés dans différentes catégories. On peut créer une catégorie en cliquant sur "publier une catégorie" dans le menu publier en haut à droite ( après authentification ). Une catégorie peut être rangée dans une autre catégorie aussi ce qui fait qu’on peut construire une arborescence de catégories.
Lors de la publication prochaine d’un document, la nouvelle catégorie créée sera proposée (...) -
Récupération d’informations sur le site maître à l’installation d’une instance
26 novembre 2010, parUtilité
Sur le site principal, une instance de mutualisation est définie par plusieurs choses : Les données dans la table spip_mutus ; Son logo ; Son auteur principal (id_admin dans la table spip_mutus correspondant à un id_auteur de la table spip_auteurs)qui sera le seul à pouvoir créer définitivement l’instance de mutualisation ;
Il peut donc être tout à fait judicieux de vouloir récupérer certaines de ces informations afin de compléter l’installation d’une instance pour, par exemple : récupérer le (...)
Sur d’autres sites (10578)
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How to crop video with ffmpeg library in Android ?
23 décembre 2016, par DylanTo crop video in Android app I use ffmpeg library
In SO example I found for cropping the video the following command :
ffmpeg -i in.mp4 -filter:v "crop=out_w:out_h:x:y" out.mp4
I created a String array :
String[] cmd = "ffmpeg", "-i", originalVideoPath, "-vf", "\"crop=" + imageWidth + " :" + imageHeight + " :" + xCoordinate + " :" + yCoordinate + "\"", "-c:a", "copy", croppedVideoPath ;
And I pass this array to execute() method :
try {
ffmpeg = FFmpeg.getInstance(getContext());
ffmpeg.execute(cmd, new ExecuteBinaryResponseHandler() {
@Override
public void onStart() {
Log.i(TAG, "onStart: Crop Video started");
}
@Override
public void onProgress(String message) {
Log.i(TAG, "onProgress: " + message);
}
@Override
public void onFailure(String message) {
Log.i(TAG, "onFailure: " + message);
}
@Override
public void onSuccess(String message) {
Log.i(TAG, "onSuccess: " + message);
}
@Override
public void onFinish() {
Log.i(TAG, "onFinish: Video cropping finished");
}
});
} catch (FFmpegCommandAlreadyRunningException e) {
// Handle if FFmpeg is already running
Log.i(TAG, "doInBackground: Exception + Device is not supported");
}The log result is :
12-14 11:33:33.246 5731-5731/com.studioidan.dmc I/CropImageFragment: onStart: Crop Video started
12-14 11:33:33.246 5731-5731/dmc I/CropImageFragment: onProgress: ffmpeg version n3.0.1 Copyright (c) 2000-2016 the FFmpeg developers
12-14 11:33:33.246 5731-5731/dmc I/CropImageFragment: onProgress: built with gcc 4.8 (GCC)
12-14 11:33:33.246 5731-5731/dmc I/CropImageFragment: onProgress: configuration: --target-os=linux --cross-prefix=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --enable-libmp3lame --enable-fontconfig --enable-pthreads --disable-debug --disable-ffserver --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --enable-yasm --disable-doc --disable-shared --enable-static --pkg-config=/home/vagrant/SourceCode/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/vagrant/SourceCode/ffmpeg-android/build/armeabi-v7a --extra-cflags='-I/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all' --extra-ldflags='-L/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
12-14 11:33:33.246 5731-5731/dmc I/CropImageFragment: onProgress: libavutil 55. 17.103 / 55. 17.103
12-14 11:33:33.246 5731-5731/dmc I/CropImageFragment: onProgress: libavcodec 57. 24.102 / 57. 24.102
12-14 11:33:33.246 5731-5731/dmc I/CropImageFragment: onProgress: libavformat 57. 25.100 / 57. 25.100
12-14 11:33:33.246 5731-5731/dmc I/CropImageFragment: onProgress: libavdevice 57. 0.101 / 57. 0.101
12-14 11:33:33.246 5731-5731/dmc I/CropImageFragment: onProgress: libavfilter 6. 31.100 / 6. 31.100
12-14 11:33:33.246 5731-5731/dmc I/CropImageFragment: onProgress: libswscale 4. 0.100 / 4. 0.100
12-14 11:33:33.246 5731-5731/dmc I/CropImageFragment: onProgress: libswresample 2. 0.101 / 2. 0.101
12-14 11:33:33.246 5731-5731/dmc I/CropImageFragment: onProgress: libpostproc 54. 0.100 / 54. 0.100
12-14 11:33:33.316 5731-5731/dmc I/CropImageFragment: onProgress: Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/DMC/diamondVideo.mp4':
12-14 11:33:33.316 5731-5731/dmc I/CropImageFragment: onProgress: Metadata:
12-14 11:33:33.316 5731-5731/dmc I/CropImageFragment: onProgress: major_brand : isom
12-14 11:33:33.316 5731-5731/dmc I/CropImageFragment: onProgress: minor_version : 0
12-14 11:33:33.316 5731-5731/dmc I/CropImageFragment: onProgress: compatible_brands: isom3gp4
12-14 11:33:33.316 5731-5731/dmc I/CropImageFragment: onProgress: creation_time : 2016-12-14 08:33:10
12-14 11:33:33.316 5731-5731/dmc I/CropImageFragment: onProgress: Duration: 00:00:05.14, start: 0.000000, bitrate: 13480 kb/s
12-14 11:33:33.316 5731-5731/dmc I/CropImageFragment: onProgress: Stream #0:0(eng): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p, 1280x720, 13824 kb/s, SAR 1:1 DAR 16:9, 29.96 fps, 30 tbr, 90k tbn, 180k tbc (default)
12-14 11:33:33.316 5731-5731/dmc I/CropImageFragment: onProgress: Metadata:
12-14 11:33:33.316 5731-5731/dmc I/CropImageFragment: onProgress: creation_time : 2016-12-14 08:33:10
12-14 11:33:33.316 5731-5731/dmc I/CropImageFragment: onProgress: handler_name : VideoHandle
12-14 11:33:33.316 5731-5731/dmc I/CropImageFragment: onProgress: Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 96 kb/s (default)
12-14 11:33:33.316 5731-5731/dmc I/CropImageFragment: onProgress: Metadata:
12-14 11:33:33.316 5731-5731/dmc I/CropImageFragment: onProgress: creation_time : 2016-12-14 08:33:10
12-14 11:33:33.316 5731-5731/dmc I/CropImageFragment: onProgress: handler_name : SoundHandle
12-14 11:33:33.316 5731-5731/dmc I/CropImageFragment: onProgress: [NULL @ 0x433f5f40] Unable to find a suitable output format for 'ffmpeg'
12-14 11:33:33.316 5731-5731/dmc I/CropImageFragment: onProgress: ffmpeg: Invalid argument
12-14 11:33:33.326 5731-5731/dmc I/CropImageFragment: onFailure: ffmpeg version n3.0.1 Copyright (c) 2000-2016 the FFmpeg developers
built with gcc 4.8 (GCC)
configuration: --target-os=linux --cross-prefix=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --enable-libmp3lame --enable-fontconfig --enable-pthreads --disable-debug --disable-ffserver --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --enable-yasm --disable-doc --disable-shared --enable-static --pkg-config=/home/vagrant/SourceCode/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/vagrant/SourceCode/ffmpeg-android/build/armeabi-v7a --extra-cflags='-I/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all' --extra-ldflags='-L/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
libavutil 55. 17.103 / 55. 17.103
libavcodec 57. 24.102 / 57. 24.102
libavformat 57. 25.100 / 57. 25.100
libavdevice 57. 0.101 / 57. 0.101
libavfilter 6. 31.100 / 6. 31.100
libswscale 4. 0.100 / 4. 0.100
libswresample 2. 0.101 / 2. 0.101
libpostproc 54. 0.100 / 54. 0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/DMC/diamondVideo.mp4':
Metadata:
major_brand : isom
minor_version : 0
compatible_brands: isom3gp4
creation_time : 2016-12-14 08:33:10
Duration: 00:00:05.14, start: 0.000000, bitrate: 13480 kb/s
Stream #0:0(eng): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p, 1280x720, 13824 kb/s, SAR 1:1 DAR 16:9, 29.96 fps, 30 tbr, 90k tbn, 180k tbc (default)
Metadata:
creation_time : 2016-12-14 08:33:10
handler_name : VideoHandle
Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 96 kb/s (default)
Metadata:
creation_time : 2016-12-14 08:33:10
handler_name : SoundHandle
[NULL @ 0x433f5f40] Unable to find a suitable output format for 'ffmpeg'
ffmpeg: Invalid argument
12-14 11:33:33.326 5731-5731/dmc I/CropImageFragment: onFinish: Video cropping finishedBut when I delete ffmpeg from array of command
String[] cmd = "-i", originalVideoPath, "-vf", "\"crop=" + imageWidth + " :" + imageHeight + " :" + xCoordinate + " :" + yCoordinate + "\"", "-c:a", "copy", croppedVideoPath ;
After execute it, the result is :
12-14 11:56:46.366 25930-26592/dmc I/CropImageFragment: onStart: Crop Video started
12-14 11:56:46.426 25930-25930/dmc I/CropImageFragment: onProgress: ffmpeg version n3.0.1 Copyright (c) 2000-2016 the FFmpeg developers
12-14 11:56:46.426 25930-25930/dmc I/CropImageFragment: onProgress: built with gcc 4.8 (GCC)
12-14 11:56:46.426 25930-25930/dmc I/CropImageFragment: onProgress: configuration: --target-os=linux --cross-prefix=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --enable-libmp3lame --enable-fontconfig --enable-pthreads --disable-debug --disable-ffserver --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --enable-yasm --disable-doc --disable-shared --enable-static --pkg-config=/home/vagrant/SourceCode/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/vagrant/SourceCode/ffmpeg-android/build/armeabi-v7a --extra-cflags='-I/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all' --extra-ldflags='-L/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
12-14 11:56:46.426 25930-25930/dmc I/CropImageFragment: onProgress: libavutil 55. 17.103 / 55. 17.103
12-14 11:56:46.426 25930-25930/dmc I/CropImageFragment: onProgress: libavcodec 57. 24.102 / 57. 24.102
12-14 11:56:46.426 25930-25930/dmc I/CropImageFragment: onProgress: libavformat 57. 25.100 / 57. 25.100
12-14 11:56:46.426 25930-25930/dmc I/CropImageFragment: onProgress: libavdevice 57. 0.101 / 57. 0.101
12-14 11:56:46.426 25930-25930/dmc I/CropImageFragment: onProgress: libavfilter 6. 31.100 / 6. 31.100
12-14 11:56:46.426 25930-25930/dmc I/CropImageFragment: onProgress: libswscale 4. 0.100 / 4. 0.100
12-14 11:56:46.426 25930-25930/dmc I/CropImageFragment: onProgress: libswresample 2. 0.101 / 2. 0.101
12-14 11:56:46.426 25930-25930/dmc I/CropImageFragment: onProgress: libpostproc 54. 0.100 / 54. 0.100
12-14 11:56:46.506 25930-25930/dmc I/CropImageFragment: onProgress: Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/DMC/diamondVideo.mp4':
12-14 11:56:46.506 25930-25930/dmc I/CropImageFragment: onProgress: Metadata:
12-14 11:56:46.506 25930-25930/dmc I/CropImageFragment: onProgress: major_brand : isom
12-14 11:56:46.506 25930-25930/dmc I/CropImageFragment: onProgress: minor_version : 0
12-14 11:56:46.506 25930-25930/dmc I/CropImageFragment: onProgress: compatible_brands: isom3gp4
12-14 11:56:46.506 25930-25930/dmc I/CropImageFragment: onProgress: creation_time : 2016-12-14 08:56:40
12-14 11:56:46.506 25930-25930/dmc I/CropImageFragment: onProgress: Duration: 00:00:05.27, start: 0.000000, bitrate: 13189 kb/s
12-14 11:56:46.506 25930-25930/dmc I/CropImageFragment: onProgress: Stream #0:0(eng): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p, 1280x720, 13886 kb/s, SAR 1:1 DAR 16:9, 30.01 fps, 30 tbr, 90k tbn, 180k tbc (default)
12-14 11:56:46.506 25930-25930/dmc I/CropImageFragment: onProgress: Metadata:
12-14 11:56:46.506 25930-25930/dmc I/CropImageFragment: onProgress: creation_time : 2016-12-14 08:56:40
12-14 11:56:46.506 25930-25930/dmc I/CropImageFragment: onProgress: handler_name : VideoHandle
12-14 11:56:46.506 25930-25930/dmc I/CropImageFragment: onProgress: Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 96 kb/s (default)
12-14 11:56:46.506 25930-25930/dmc I/CropImageFragment: onProgress: Metadata:
12-14 11:56:46.506 25930-25930/dmc I/CropImageFragment: onProgress: creation_time : 2016-12-14 08:56:40
12-14 11:56:46.506 25930-25930/dmc I/CropImageFragment: onProgress: handler_name : SoundHandleIt looks like the process starts and after that it freezes
What I do wrong ?
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Revision 69399 : On refait les critères dans l’inclusion des graphiques, mais on n’affiche ...
25 janvier 2013, par rastapopoulos@… — LogOn refait les critères dans l’inclusion des graphiques, mais on n’affiche cette inclusion que s’il n’y a pas un trop grand nombre de points ! (là 2000 en dur, complètement au hasard).
En vrai il faudrait surtout que les graphiques ne s’affichent qu’avec une pagination mois par mois, un truc dans ce genre ! -
Resize and overlay image on video in android efficiently
29 décembre 2016, par Bhushan LadheI want to resize image and video(2160 x 3840) to a same resolution(540 × 960) and then overlay image on video for whole time. This whole process is similar to capturing video and adding caption to it like snap-chat and saving it.
Since i am successful in doing so using FFMPEG library but it consumes considerable amount of time in processing.
I have searched the internet for other faster operations but no luck. I will post commands that i am using.
//1st command (video size from 59MB to 4MB, about time 110secs)
-i sdcard/VID_20161228_174315.mp4 -vf scale=540:960 sdcard/output540.mp4
//2nd command (image file , size done, time : a sec hence ignored)
-i sdcard/capture.jpg -vf scale=540:960 sdcard/capture540.png
//3rd command (time 80sec)
-i sdcard/output540.mp4 -i sdcard/capture540.png -filter_complex overlay=0:0 -r 30 sdcard/output_overlay.mp4So here using -preset and copying same audio from source did not work as expected.
Questions :
1) Should i use specific codec ?
2) How to achieve Minimum time for processing ?
3) Will applying multiple threads help ? If yes then how ? I want this process to work in background even if app is closed.
4) All other options that can combine to make an efficient solution ?
Log for 3rd command :
SUCCESS with output : ffmpeg version n3.0.1 Copyright (c) 2000-2016 the FFmpeg developers
built with gcc 4.8 (GCC)
configuration: --target-os=linux --cross-prefix=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --enable-libmp3lame --enable-fontconfig --enable-pthreads --disable-debug --disable-ffserver --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --enable-yasm --disable-doc --disable-shared --enable-static --pkg-config=/home/vagrant/SourceCode/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/vagrant/SourceCode/ffmpeg-android/build/armeabi-v7a --extra-cflags='-I/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all' --extra-ldflags='-L/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
libavutil 55. 17.103 / 55. 17.103
libavcodec 57. 24.102 / 57. 24.102
libavformat 57. 25.100 / 57. 25.100
libavdevice 57. 0.101 / 57. 0.101
libavfilter 6. 31.100 / 6. 31.100
libswscale 4. 0.100 / 4. 0.100
libswresample 2. 0.101 / 2. 0.101
libpostproc 54. 0.100 / 54. 0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'sdcard/output540.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf57.25.100
Duration: 00:00:10.09, start: 0.021333, bitrate: 2055 kb/s
Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 540x960 [SAR 1:1 DAR 9:16], 1930 kb/s, 16.75 fps, 16.75 tbr, 17152 tbn, 33.50 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 119 kb/s (default)
Metadata:
handler_name : SoundHandler
Input #1, png_pipe, from 'sdcard/output_540.png':
Duration: N/A, bitrate: N/A
Stream #1:0: Video: png, rgba(pc), 540x960, 25 tbr, 25 tbn, 25 tbc
[libx264 @ 0xaca425f0] using SAR=1/1
[libx264 @ 0xaca425f0] using cpu capabilities: none!
[libx264 @ 0xaca425f0] profile High, level 3.1
[libx264 @ 0xaca425f0] 264 - core 148 - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=9 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to 'sdcard/output_overlay_forlog.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf57.25.100
Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 540x960 [SAR 1:1 DAR 9:16], q=-1--1, 30 fps, 15360 tbn, 30 tbc (default)
Metadata:
encoder : Lavc57.24.102 libx264
Side data:
unknown side data type 10 (24 bytes)
Stream #0:1(eng): Audio: aac (LC) ([64][0][0][0] / 0x0040), 48000 Hz, stereo, fltp, 128 kb/s (default)
Metadata:
handler_name : SoundHandler
encoder : Lavc57.24.102 aac
Stream mapping:
Stream #0:0 (h264) -> overlay:main (graph 0)
Stream #1:0 (png) -> overlay:overlay (graph 0)
overlay (graph 0) -> Stream #0:0 (libx264)
Stream #0:1 -> #0:1 (aac (native) -> aac (native))
Press [q] to stop, [?] for help
frame= 19 fps=0.0 q=0.0 size= 0kB time=00:00:00.88 bit
12-29 02:20:37.914 19213-19213/in.techzilla.happenning_client D/Ffmpeg: Finished command : ffmpeg [Ljava.lang.String;@1a223d4here one more txt file for full output
https://drive.google.com/file/d/0B60iSiCrzaVkUXFpYVFpdGdKN2M/view?usp=drivesdk
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