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Autres articles (46)
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Submit enhancements and plugins
13 avril 2011If you have developed a new extension to add one or more useful features to MediaSPIP, let us know and its integration into the core MedisSPIP functionality will be considered.
You can use the development discussion list to request for help with creating a plugin. As MediaSPIP is based on SPIP - or you can use the SPIP discussion list SPIP-Zone. -
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 (...) -
Mise à disposition des fichiers
14 avril 2011, parPar défaut, lors de son initialisation, MediaSPIP ne permet pas aux visiteurs de télécharger les fichiers qu’ils soient originaux ou le résultat de leur transformation ou encodage. Il permet uniquement de les visualiser.
Cependant, il est possible et facile d’autoriser les visiteurs à avoir accès à ces documents et ce sous différentes formes.
Tout cela se passe dans la page de configuration du squelette. Il vous faut aller dans l’espace d’administration du canal, et choisir dans la navigation (...)
Sur d’autres sites (4199)
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how to pass custom values into this Android ffmpeg method
28 août 2014, par kc ochibilii am trying to call this method. but i dont know how to pass my own values into it
Like : the output length, or FrameRate.The code uses some letters like "-y" "-i" which they explained without really explaining what the letters meant
here is the method from https://github.com/guardianproject/android-ffmpeg-java/blob/master/src/org/ffmpeg/android/FfmpegController.java#L488
/*
* ffmpeg -y -loop 0 -f image2 -r 0.5 -i image-%03d.jpg -s:v 1280x720 -b:v 1M \
-i soundtrack.mp3 -t 01:05:00 -map 0:0 -map 1:0 out.avi
-loop_input – loops the images. Disable this if you want to stop the encoding when all images are used or the soundtrack is finished.
-r 0.5 – sets the framerate to 0.5, which means that each image will be shown for 2 seconds. Just take the inverse, for example if you want each image to last for 3 seconds, set it to 0.33.
-i image-%03d.jpg – use these input files. %03d means that there will be three digit numbers for the images.
-s 1280x720 – sets the output frame size.
-b 1M – sets the bitrate. You want 500MB for one hour, which equals to 4000MBit in 3600 seconds, thus a bitrate of approximately 1MBit/s should be sufficient.
-i soundtrack.mp3 – use this soundtrack file. Can be any format.
-t 01:05:00 – set the output length in hh:mm:ss format.
out.avi – create this output file. Change it as you like, for example using another container like MP4.
*/
public Clip createSlideshowFromImagesAndAudio (ArrayList<clip> images, Clip audio, Clip out, int durationPerSlide, ShellCallback sc) throws Exception
{
final String imageBasePath = new File(mFileTemp,"image-").getCanonicalPath();
final String imageBaseVariablePath = imageBasePath + "%03d.jpg";
ArrayList<string> cmd = new ArrayList<string>();
String newImagePath = null;
int imageCounter = 0;
Clip imageCover = images.get(0); //add the first image twice
cmd = new ArrayList<string>();
cmd.add(mFfmpegBin);
cmd.add("-y");
cmd.add("-i");
cmd.add(new File(imageCover.path).getCanonicalPath());
if (out.width != -1 && out.height != -1)
{
cmd.add("-s");
cmd.add(out.width + "x" + out.height);
}
newImagePath = imageBasePath + String.format(Locale.US, "%03d", imageCounter++) + ".jpg";
cmd.add(newImagePath);
execFFMPEG(cmd, sc);
for (Clip image : images)
{
cmd = new ArrayList<string>();
cmd.add(mFfmpegBin);
cmd.add("-y");
cmd.add("-i");
cmd.add(new File(image.path).getCanonicalPath());
if (out.width != -1 && out.height != -1)
{
cmd.add("-s");
cmd.add(out.width + "x" + out.height);
}
newImagePath = imageBasePath + String.format(Locale.US, "%03d", imageCounter++) + ".jpg";
cmd.add(newImagePath);
execFFMPEG(cmd, sc);
}
//then combine them
cmd = new ArrayList<string>();
cmd.add(mFfmpegBin);
cmd.add("-y");
cmd.add("-loop");
cmd.add("0");
cmd.add("-f");
cmd.add("image2");
cmd.add("-r");
cmd.add("1/" + durationPerSlide);
cmd.add("-i");
cmd.add(imageBaseVariablePath);
cmd.add("-strict");
cmd.add("-2");//experimental
String fileTempMpg = new File(mFileTemp,"tmp.mpg").getCanonicalPath();
cmd.add(fileTempMpg);
execFFMPEG(cmd, sc);
//now combine and encode
cmd = new ArrayList<string>();
cmd.add(mFfmpegBin);
cmd.add("-y");
cmd.add("-i");
cmd.add(fileTempMpg);
if (audio != null && audio.path != null)
{
cmd.add("-i");
cmd.add(new File(audio.path).getCanonicalPath());
cmd.add("-map");
cmd.add("0:0");
cmd.add("-map");
cmd.add("1:0");
cmd.add(Argument.AUDIOCODEC);
cmd.add("aac");
cmd.add(Argument.BITRATE_AUDIO);
cmd.add("128k");
}
cmd.add("-strict");
cmd.add("-2");//experimental
cmd.add(Argument.VIDEOCODEC);
if (out.videoCodec != null)
cmd.add(out.videoCodec);
else
cmd.add("mpeg4");
if (out.videoBitrate != -1)
{
cmd.add(Argument.BITRATE_VIDEO);
cmd.add(out.videoBitrate + "k");
}
cmd.add(new File(out.path).getCanonicalPath());
execFFMPEG(cmd, sc);
return out;
}
</string></string></string></string></string></string></clip>so, say i want an out put video that has a
framerate --> 2sec
output frame size --> 480 x 480
output lenght of--> 02:08:00
and output file type --> .mp4How can i do call this method with these values ?
and how do they relate to the letters used above. -
ffmpeg encoder (h264) example yields invalid video
18 mai 2017, par Jason MI am trying to implement the h264 encoder (no audio) for my c++ program with ffmpeg (3.24). I started out with running the supposed official example but got a unplayable video. When I probed it with my ffmpeg decoder, which works nicely on other h264 videos, it shows that the video has a time_base = 1/1200000, nb_frames = 0, avg_frame_rate = 25 and duration and start_time of large negative numbers.
What may have caused the problem ? Is there other up-to-date encoder examples out there ?
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Merge commit '8a34f3659371680ca523aecfd9098c28f0f809eb'
5 mai 2017, par James AlmerMerge commit '8a34f3659371680ca523aecfd9098c28f0f809eb'
* commit '8a34f3659371680ca523aecfd9098c28f0f809eb' :
build : Add version numbers to "Requires" entries in pkg-config filesThis commit is a noop, see 6fdd35a3126f6ecbe4ebab12bdf8867e4f544958
Merged-by : James Almer <jamrial@gmail.com>
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