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Autres articles (42)
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La file d’attente de SPIPmotion
28 novembre 2010, parUne file d’attente stockée dans la base de donnée
Lors de son installation, SPIPmotion crée une nouvelle table dans la base de donnée intitulée spip_spipmotion_attentes.
Cette nouvelle table est constituée des champs suivants : id_spipmotion_attente, l’identifiant numérique unique de la tâche à traiter ; id_document, l’identifiant numérique du document original à encoder ; id_objet l’identifiant unique de l’objet auquel le document encodé devra être attaché automatiquement ; objet, le type d’objet auquel (...) -
Contribute to documentation
13 avril 2011Documentation is vital to the development of improved technical capabilities.
MediaSPIP welcomes documentation by users as well as developers - including : critique of existing features and functions articles contributed by developers, administrators, content producers and editors screenshots to illustrate the above translations of existing documentation into other languages
To contribute, register to the project users’ mailing (...) -
Supporting all media types
13 avril 2011, parUnlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)
Sur d’autres sites (4456)
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Unable to convert video to mp4 formate
11 avril 2017, par Usman SaeedI have to convert video (any format) to mp4 format
I am using this android library WritingMindsHere is my code
ffmpeg = FFmpeg.getInstance(UploadVideoService.this);
loadFFMpegBinary();
String newVideoPath = Utils.makeAndGetFolderName(Constants.PHOTEX_VIDEO);
File file = new File(newVideoPath + File.separator +
System.currentTimeMillis() + ".mp4");
if (file.exists()) {
file.delete();
}
File fileOrignal = new File(videoFilePath);
if (fileOrignal.exists()) {
try {
InputStream is =new FileInputStream(videoFilePath);
int size = is.available();
byte[] buffer = new byte[size];
is.read(buffer);
is.close();
FileOutputStream fos = new FileOutputStream(file);
fos.write(buffer);
fos.close();
String command = "-i " + fileOrignal.getAbsolutePath()
+ " -c:v libx264 -c:a aac -movflags faststart " + file.getAbsolutePath();
execFFmpegBinary(new String[]{command});
} catch (Exception e) {
Log.d(TAG, "Exception ");
e.printStackTrace();
}
private void loadFFMpegBinary() {
try {
ffmpeg.loadBinary(new LoadBinaryResponseHandler() {
@Override
public void onFailure() {
// TODO: 11-Apr-17 Notification and toast
}
@Override
public void onSuccess() {
super.onSuccess();
}
});
} catch (FFmpegNotSupportedException e) {
e.printStackTrace();
}
}
private void execFFmpegBinary(final String[] command) {
try {
ffmpeg.execute(command, new ExecuteBinaryResponseHandler() {
@Override
public void onFailure(String s) {
Log.d(TAG, "onFailure " + s);
}
@Override
public void onSuccess(String s) {
Log.d(TAG, "onSuccess " + s);
}
@Override
public void onProgress(String s) {
Log.d(TAG, "onProgress " + s);
}
@Override
public void onStart() {
Log.d(TAG, "onStart ");
}
@Override
public void onFinish() {
Log.d(TAG, "onFinish ");
}
});
} catch (FFmpegCommandAlreadyRunningException e) {
e.printStackTrace();
// do nothing for now
Log.d(TAG, "FFmpegCommandAlreadyRunningException ");
}
}its give these error
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
Unrecognized option 'i /storage/emulated/0/Movies/mvd.avi -c:v libx264 -c:a aac -movflags faststart /storage/emulated/0/Photex/photexVideo/1491909522363.mp4'.
**Error splitting the argument list: Option not found**04-11 16:18:43.158 11529-11529/com.photex.urdu.textonphotos D/UploadVideoService : onFinish
I am unable to understand how to solve this !
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How to decrypt hls video content
16 mai 2019, par SHAH MD MONIRUL ISLAMMy requirement is to play the encrypted
hlsvideo files from local storage inandroid. I have usedNanoHTTPDto create and run the local server. From there I am serving the.tsan.m3u8files. To play this videoExoPlayerneed a key to decrypt the files and thus I made a url : http://localhost:4990/dataKey.Here is my local server class :
import android.os.Environment;
import android.util.Log;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.util.Map;
import fi.iki.elonen.NanoHTTPD;
public class LocalStreamingServer extends NanoHTTPD{
public LocalStreamingServer(int port){
super(port);
}
@Override
public Response serve(IHTTPSession session){
Log.e("req", session.getUri());
if(session.getUri().equalsIgnoreCase("/dataKey")){
return newFixedLengthResponse(Response.Status.OK, "txt", "what is the key?");
}
if(session.getUri().contains("m3u8")){
String path = Environment.getExternalStorageDirectory().toString() + "/s3" + session.getUri();
FileInputStream fis = null;
File f = new File(path);
try {
fis = new FileInputStream(f);
} catch (FileNotFoundException e) {
}
return newFixedLengthResponse(Response.Status.OK, "m3u8", fis, f.length());
}
if(session.getUri().endsWith("ts")){
String path = Environment.getExternalStorageDirectory().toString() + "/s3" + session.getUri();
FileInputStream fis = null;
File f = new File(path);
try {
fis = new FileInputStream(f);
} catch (FileNotFoundException e) {
}
return newFixedLengthResponse(Response.Status.OK, "ts", fis, f.length());
}
String path = Environment.getExternalStorageDirectory().toString() + "/s3/master.m3u8";
FileInputStream fis = null;
File f = new File(path);
try {
fis = new FileInputStream(f);
} catch (FileNotFoundException e) {
}
return newFixedLengthResponse(Response.Status.OK, "m3u8", fis, f.length());
}
}I have transcoded the video using
ffmpeg. I need to know that which data or key need to be returned when the dataKey url is called. I have the encrypted the video using these key :key=617D8A125A284DF48E3C6B1866348A3F
IV=5ff82ce11c7e73dcdf7e73cacd0ef98I can not understand which of them are need to be returned from the datakey url. Both of them are not working.
Exoplayeris sending the error message :java.security.InvalidKeyException: Unsupported key sizecan Any one help me about this ?
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How to add subtitles to PowerPoint presentation
5 septembre 2018, par ppdlxOkay, to clear things up I will say that I’m posting here because I found the answer and want to help people in future who come upon the same problem. Since PowerPoint is not the right tool to title an presentation I will tell you my way of doing this. If you can do it in PowerPoint alone, super for you but I could not do it in PowerPoint alone, therefore this way. So what I did is the following, I simply recorded the presentation and made subtitles for it and in the final I hardcoded the subtitles into the video. Here is how I did it.
How to add subtitles to your PowerPoint presentation
First, I downloaded the latest SnagIt software from their official website. You can have a free trial there. Click here to download SnagIt. Then using SnagIt I recorded my whole screen and played the presentation. I made a video file of the presentation. Let’s call it presentation.mp4.
Then I downloaded my subtitle making software, an awesome open source program called Subtitle Edit from it’s official website. It’s really simple to use it and it is awesome and user friendly. It doesn’t take too long to subtitle a three minute presentation. When you are satisfied with the subtitles save them as .srt and call them whatever you like. Now we have a video file and corresponding subtitles for it.
Now we need to hardcode the subtitles into the video file, in other words to burn the subtitles to the video. I did this using another awesome open source software called ffmpeg. See the website and download it from official ffmpeg website. Extract it somewhere and for convinience put subtitle and video file to it’s bin directory. You can put it elsewhere if you like it that way. The first command I used is to transform .srt to .ass.
ffmpeg -i subtitles.srt subtitles.assAfterwards it’s easy to make a subtitled video file with the following command :
ffmpeg -i presentation.mp4 -vf ass=subtitles.ass presentation_subtitled.mp4I am not sure for the command and can’t get now to see the correct command but if it fails you can seek help on this page.
Now that we have our presentation_subtitled.mp4 we can now trim the video to our likings.
ffmpeg -i presentation_subtitled.mp4 -ss 00:01:00 -to 00:02:00 -c copy presentation_final.mp4Of course, edit the -ss and -to option, it’s the start time and the end time of your video.
That’s it ! Now you have your presentation_final.mp4 video file where you have your presentation with subtitles. Ffmpeg is awesome because you can convert it to any format you like.
You have some help with hardcoding subtitles on Subtitle Edit web page, but one software gave me a virus, one software didn’t work, and after trial and error this is the way that worked for me and it’s really convinied due to great open source software - Subtitle Edit and ffmpeg.
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