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Autres articles (111)
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Personnaliser les catégories
21 juin 2013, parFormulaire de création d’une catégorie
Pour ceux qui connaissent bien SPIP, une catégorie peut être assimilée à une rubrique.
Dans le cas d’un document de type catégorie, les champs proposés par défaut sont : Texte
On peut modifier ce formulaire dans la partie :
Administration > Configuration des masques de formulaire.
Dans le cas d’un document de type média, les champs non affichés par défaut sont : Descriptif rapide
Par ailleurs, c’est dans cette partie configuration qu’on peut indiquer le (...) -
Des sites réalisés avec MediaSPIP
2 mai 2011, parCette page présente quelques-uns des sites fonctionnant sous MediaSPIP.
Vous pouvez bien entendu ajouter le votre grâce au formulaire en bas de page. -
De l’upload à la vidéo finale [version standalone]
31 janvier 2010, parLe chemin d’un document audio ou vidéo dans SPIPMotion est divisé en trois étapes distinctes.
Upload et récupération d’informations de la vidéo source
Dans un premier temps, il est nécessaire de créer un article SPIP et de lui joindre le document vidéo "source".
Au moment où ce document est joint à l’article, deux actions supplémentaires au comportement normal sont exécutées : La récupération des informations techniques des flux audio et video du fichier ; La génération d’une vignette : extraction d’une (...)
Sur d’autres sites (9948)
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How to stop and pause a video using ffmpeg
1er juin 2017, par Amartya2562I am trying to make a video player using scilab gui. I am using scilab gui in the front end and ffmpeg in the back end. I am able to start the video but I cannot stop or pause it. Any idea regarding how to stop and pause the video will be appreciated thoroughly ?
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FFmpeg4Android how to stop processing ?
18 mai 2017, par widesteppeI have been successfully setup and starting ffmpeg4android as described here http://androidwarzone.blogspot.com/2011/12/ffmpeg4android.html and all goes fine. But what if I want to stop processing before it will be finished. I call fExit(Context context) method from LoadJNI class and nothing happens. Does someone know how correctly stop ffmpeg4android processing ?
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ffmpeg android java. Unable to use single and regular quotes
14 février 2016, par MalusDarkbFirst off, in the long run I want to implement a speedometer for a MP4 file using Android. I did some research and apparently the best way to do that is through FFmpeg. I decided on using this library : https://github.com/WritingMinds/ffmpeg-android-java . It implements FFmpeg for Android. It was quite simple to include into my project. (Instructions : http://writingminds.github.io/ffmpeg-android-java/)
I use the following method. As cmd I am using a String in Quotations marks
ffmpeg.execute(cmd, new ExecuteBinaryResponseHandler() {
...
};Now I was trying to overlay some dynamic text over an MP4 file. I thought I would start trying it with a timestamp. For a timestamp something like this is needed : ... timecode=’02:36:17~;00’ ...
My Problem is I am getting this error " Unable to find a suitable output format for ’’’. It doesn’t matter if i try to use "\" (escaping) or if i try to use regular quotes. Whenever I use some kind of quotation mark I am getting an error. That makes it impossible to use an dynamic timestamp. I think.
Does anyone have an idea as to how I can fix this ? Keep in mind the timecode is within a String in an Android(Java) class.
Thanks in advance for your help
EDIT :
Can someone provide me with a working command ? The cmd 1-3 work, but 4 and 5 don’t work (even as String[]).
String cmd1 = "-i /storage/emulated/0/dir1/dir2/TestVideo.MP4 -i /storage/emulated/0/dir1/dir2/logo.png -preset ultrafast -filter_complex overlay=10:main_h-overlay_h-10 -acodec: copy /storage/emulated/0/dir1/dir2/LogoOverlay1.mp4";// working PNG overlay
String cmd2 = "-i /storage/emulated/0/dir1/dir2/TestVideo.MP4 -i /storage/emulated/0/dir1/dir2/logo.png -preset ultrafast -filter_complex overlay=(main_w-overlay_w)/2:(main_h-overlay_h)/2 -acodec: copy /storage/emulated/0/dir1/dir2/LogoOverlay2.mp4";// working PNG overlay
String cmd3 = "-i /storage/emulated/0/dir1/dir2/TestVideo.MP4 -i /storage/emulated/0/dir1/dir2/logo.png -preset ultrafast -filter_complex [0:v][1:v]overlay=main_w-overlay_w-10:main_h-overlay_h-10[out] -map [out] -map 0:a -acodec: copy /storage/emulated/0/dir1/dir2/LogoOverlay3.mp4";// working PNG overlay
String cmd4 = "-i /storage/emulated/0/dir1/dir2/TestVideo2.MP4 -vf drawtext=fontfile=/usr/share/fonts/TTF/Vera.ttf: text=\'Stack Overflow\': fontcolor=white: fontsize=24: box=1: boxcolor=black: x=(w-text_w)/2: y=(h-text_h-line_h)/2\" -acodec: copy /storage/emulated/0/dir1/dir2/TextOverlay.mp4";
String cmd5 = "-i /storage/emulated/0/dir1/dir2/TestVideo2.MP4 -vf \'transpose=1\' /storage/emulated/0/dir1/dir2/rotated.mp4"; //rotate video
String[] cmd4arr = new String[]{"-i", "/storage/emulated/0/dir1/dir2/TestVideo.MP4", "-vf", "drawtext=fontfile=/usr/share/fonts/TTF/Vera.ttf: text='Stack Overflow': fontcolor=white: fontsize=24: box=1: boxcolor=black: x=(w-text_w)/2: y=(h-text_h-line_h)/2", "-acodec:", "copy /storage/emulated/0/dir1/dir2/TextOverlay.mp4"};
String[] cmd5arr = new String[]{"-i", "/storage/emulated/0/dir1/dir2/TestVideo2.MP4","-preset","ultrafast", "-vf", "\'transpose=1\'", "/storage/emulated/0/dir1/dir2/rotated.mp4"};
String[] cmd4ArrAlt = new String[]{"-i", "/storage/extSdCard/DCIM/Camera/Test.MP4", "-vf", "drawtext=fontfile=/usr/share/fonts/TTF/Vera.ttf:", "text=\'Stack Overflow\':", "fontcolor=white:", "fontsize=24:", "box=1:", "boxcolor=black:", "x=(w-text_w)/2:", "y=(h-text_h-line_h)/2", "-acodec:", "copy", "/storage/emulated/0/dir/TextOverlay.mp4"};cmd4arr produces this Log :
.../MainActivity﹕ onProgress ffmpeg version n2.4.2 Copyright (c) 2000-2014 the FFmpeg developers
.../MainActivity﹕ onProgress built on Oct 7 2014 15:08:46 with gcc 4.8 (GCC)
.../MainActivity﹕ onProgress configuration: --target-os=linux --cross-prefix=/home/sb/Source-Code/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/home/sb/Source-Code/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --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/sb/Source-Code/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/sb/Source-Code/ffmpeg-android/build/armeabi-v7a-neon --extra-cflags='-I/home/sb/Source-Code/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all -mfpu=neon' --extra-ldflags='-L/home/sb/Source-Code/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
.../MainActivity﹕ onProgress libavutil 54. 7.100 / 54. 7.100
.../MainActivity﹕ onProgress libavcodec 56. 1.100 / 56. 1.100
.../MainActivity﹕ onProgress libavformat 56. 4.101 / 56. 4.101
.../MainActivity﹕ onProgress libavdevice 56. 0.100 / 56. 0.100
.../MainActivity﹕ onProgress libavfilter 5. 1.100 / 5. 1.100
.../MainActivity﹕ onProgress libswscale 3. 0.100 / 3. 0.100
.../MainActivity﹕ onProgress libswresample 1. 1.100 / 1. 1.100
.../MainActivity﹕ onProgress libpostproc 53. 0.100 / 53. 0.100
.../MainActivity﹕ onProgress Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/dir1/dir2/TestVideo2.MP4':
.../MainActivity﹕ onProgress Metadata:
.../MainActivity﹕ onProgress major_brand : isom
.../MainActivity﹕ onProgress minor_version : 512
.../MainActivity﹕ onProgress compatible_brands: isomiso2mp41
.../MainActivity﹕ onProgress creation_time : 1970-01-01 00:00:00
.../MainActivity﹕ onProgress encoder : Lavf53.24.2
.../MainActivity﹕ onProgress Duration: 00:00:06.40, start: 0.000000, bitrate: 1321 kb/s
.../MainActivity﹕ onProgress Stream #0:0(und): Video: mpeg4 (Simple Profile) (mp4v / 0x7634706D), yuv420p, 640x368 [SAR 1:1 DAR 40:23], 932 kb/s, 25 fps, 25 tbr, 12800 tbn, 25 tbc (default)
.../MainActivity﹕ onProgress Metadata:
.../MainActivity﹕ onProgress creation_time : 1970-01-01 00:00:00
.../MainActivity﹕ onProgress handler_name : VideoHandler
.../MainActivity﹕ onProgress Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 48000 Hz, 5.1, fltp, 383 kb/s (default)
.../MainActivity﹕ onProgress Metadata:
.../MainActivity﹕ onProgress creation_time : 1970-01-01 00:00:00
.../MainActivity﹕ onProgress handler_name : SoundHandlercmd4ArrAlt produces this Log :
.
.
.
/MainA: onProgress: handler_name : SoundHandle
/MainA: onProgress: [NULL @ 0xb5ec4a00] Unable to find a suitable output format for 'text='Stack Overflow':'
/MainA: onProgress: text='Stack Overflow':: Invalid argumentcmd4arr and cmd5arr create an new MP4 file. But it has a size of 0KB. The commands seem not to process the frames at all. It always stops with this last line of the Log posted above.
Edit :
Answered question : "What how can I use a String [ ] with this Library ? Information on that might fix the other issues."
Answer : I imported the project as arr before. When it is imported as a regular library you can’t use a normal String anymore but it is implemented as an String[].
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