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Médias (29)
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#7 Ambience
16 octobre 2011, par
Mis à jour : Juin 2015
Langue : English
Type : Audio
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#6 Teaser Music
16 octobre 2011, par
Mis à jour : Février 2013
Langue : English
Type : Audio
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#5 End Title
16 octobre 2011, par
Mis à jour : Février 2013
Langue : English
Type : Audio
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#3 The Safest Place
16 octobre 2011, par
Mis à jour : Février 2013
Langue : English
Type : Audio
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#4 Emo Creates
15 octobre 2011, par
Mis à jour : Février 2013
Langue : English
Type : Audio
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#2 Typewriter Dance
15 octobre 2011, par
Mis à jour : Février 2013
Langue : English
Type : Audio
Autres articles (97)
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To get a working installation, you must manually install all-software dependencies on the server.
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Multilang : améliorer l’interface pour les blocs multilingues
18 février 2011, parMultilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
Après son activation, une préconfiguration est mise en place automatiquement par MediaSPIP init permettant à la nouvelle fonctionnalité d’être automatiquement opérationnelle. Il n’est donc pas obligatoire de passer par une étape de configuration pour cela. -
ANNEXE : Les plugins utilisés spécifiquement pour la ferme
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Sur d’autres sites (9463)
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How can I export a video with a widget overlay in a Flutter app ?
30 juin 2024, par Mohammed BekeleI'm developing a Flutter app for a embedding caption on a videos that need to be export as video file after processing it. I'm utilizing the flutter_ffmpeg_kit package. However, I'm having trouble getting the export to work properly.


Here's the code I'm using :


initially this is my stack :


Expanded(
 child: Stack(
 children: [
 Center(
 child: _videoPlayerController.value.isInitialized
 ? AspectRatio(
 aspectRatio:
 _videoPlayerController.value.aspectRatio,
 child: VideoPlayer(_videoPlayerController),
 )
 : CircularProgressIndicator(),
 ),
 if (_currentCaption.isNotEmpty)
 Positioned.fill(
 child: Center(child: _buildCaptionText()),
 ),
 ],
 ),
 ),


and in export button i executed this function


Future<void> _exportVideo() async {
 setState(() {
 _isProcessing = true;
 });

 try {
 final directory = await getExternalStorageDirectory();
 final rootPath = directory?.parent.parent.parent.parent.path;
 final mobixPath = path.join(rootPath!, 'Mobix App');
 final appPath = path.join(mobixPath, 'Caption');
 final outputPath = path.join(appPath, 'Output');

 // Create the directories if they don't exist
 await Directory(outputPath).create(recursive: true);

 final timestamp = DateTime.now().millisecondsSinceEpoch;
 final outputFilePath = path.join(outputPath, 'output-$timestamp.mp4');


 // Generate the FFmpeg command
 final ffmpegCommand = _generateFFmpegCommand(
 widget.videoPath,
 outputFilePath,
 widget.words,
 _fontSize,
 _isBold,
 _isItalic,
 _fontColor,
 _backgroundColor,
 );

 // Execute the FFmpeg command
 await FFmpegKit.execute(
 ffmpegCommand,
 ).then(
 (session) async {
 // Update progress if needed
 final returnCode = await session.getReturnCode();
 if (ReturnCode.isSuccess(returnCode)) {
 setState(() {
 _outputFilePath = outputFilePath;
 });
 ScaffoldMessenger.of(context).showSnackBar(
 SnackBar(content: Text('Export successful: $_outputFilePath')),
 );
 } else {
 print('Export failed with rc: $returnCode');

 ScaffoldMessenger.of(context).showSnackBar(
 SnackBar(content: Text('Export failed with rc: $returnCode')),
 );
 }
 setState(() {
 _isProcessing = false;
 });
 },
 );
 } catch (e) {
 print('Export failed: $e');
 ScaffoldMessenger.of(context).showSnackBar(
 SnackBar(content: Text('Export failed: $e')),
 );
 setState(() {
 _isProcessing = false;
 });
 }
 }

 String _generateFFmpegCommand(
 String inputPath,
 String outputPath,
 List<dynamic> words,
 double fontSize,
 bool isBold,
 bool isItalic,
 Color fontColor,
 Color backgroundColor,
 ) {
 final ffmpegCommand = StringBuffer();

 // Add input file
 ffmpegCommand.write('-i $inputPath ');

 // Add subtitles filter
 final subtitleFilter = StringBuffer();
 for (var word in words) {
 final startTime = word['startTime'].toDouble();
 final endTime = word['endTime'].toDouble();
 final caption = word['word'];

 final fontStyle = isBold && isItalic
 ? 'bold italic'
 : isBold
 ? 'bold'
 : isItalic
 ? 'italic'
 : 'normal';
 final fontColorHex = fontColor.value.toRadixString(16).substring(2);
 final backgroundColorHex =
 backgroundColor.value.toRadixString(16).substring(2);

 subtitleFilter.write(
 "drawtext=text='$caption':x=(w-tw)/2:y=h-(2*lh):fontcolor=$fontColorHex:fontsize=$fontSize:fontStyle=$fontStyle:box=1:boxcolor=$backgroundColorHex@0.5:boxborderw=5:enable='between(t,$startTime,$endTime)',");
 }
 ffmpegCommand.write('-vf "${subtitleFilter.toString()}" ');

 // Add output file
 ffmpegCommand.write('$outputPath');

 return ffmpegCommand.toString();
 }
</dynamic></void>

When I run this it returns ReturnCode 1. What am i doing wrong ?


-
How to combine audio and output with python
27 octobre 2023, par Jojo MomoThis question was asked a few times a couple of years ago, but none of the solutions seem to work.


This code creates a video
output.mp4which is the same asvideo.mp4, but it doesn't have any sound fromaudio.mp3even whenvideo.mp4has sound in the first place.

import moviepy.editor as mp

audio = mp.AudioFileClip("audio_output/audio.mp3")
video1 = mp.VideoFileClip("video.mp4")
final = video1.set_audio(audio)

final.write_videofile("output.mp4")


If anyone knows of alternative methods without using moviepy please let me know ! (Or if you know why this isn't working)


-
suitable video encoding for browsers
26 juin 2022, par seriouslyI was researching how illegal movie streaming services handle all the traffic they get and to understand that I had to follow the steps they perform to get the video data to the users. I got to the stage of video transmission and noticed something that boggled me. Most of the illegal movie streaming sites get their movies/tv-shows through piracy/torrents and even most of the streamers are sister companies of the piracy websites. Now when I took a look at the video encodings of the torrent movies and shows they are h.265 but h.265 is not supported by popular browsers like chrome, firefox edge... Does this mean they (the streamers) have to re-encode every h.265 videos to avc/h.264 before they stream it ? If that's the case, that takes them a huge amount of time to convert their whole movie catalog to h.264 not to mention the space they require to save them. Am I taking a look at this the right way ? Do they really convert and store 2, 3 ... differently encoded video files and stream the suitable one ? Or can they somehow convert the chunks of data they are streaming to h.264 live simultaneously without having to store the h.264 formats hence saving conversion time and space ?


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