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Médias (2)
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SPIP - plugins - embed code - Exemple
2 septembre 2013, par
Mis à jour : Septembre 2013
Langue : français
Type : Image
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Publier une image simplement
13 avril 2011, par ,
Mis à jour : Février 2012
Langue : français
Type : Video
Autres articles (84)
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Les autorisations surchargées par les plugins
27 avril 2010, parMediaspip core
autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs -
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. -
Configurer la prise en compte des langues
15 novembre 2010, parAccéder à la configuration et ajouter des langues prises en compte
Afin de configurer la prise en compte de nouvelles langues, il est nécessaire de se rendre dans la partie "Administrer" du site.
De là, dans le menu de navigation, vous pouvez accéder à une partie "Gestion des langues" permettant d’activer la prise en compte de nouvelles langues.
Chaque nouvelle langue ajoutée reste désactivable tant qu’aucun objet n’est créé dans cette langue. Dans ce cas, elle devient grisée dans la configuration et (...)
Sur d’autres sites (9017)
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Is there a way to horizontal flip video captured from flutter front camera
5 mai 2024, par JoyJoyBasically, I'm trying to flip video horizontally after capturing it from flutter front camera. So I start recording, stop recording, flip the video and pass it to another page. I'm fairly new and would appreciate any assistance as my code isn't working


I've tried doing so using the new ffmpeg_kit flutter


Future<void> flipVideo(String inputPath, String outputPath) async{
final ffmpegCommand = "-i $inputPath -vf hflip $outputPath";
final session = FFmpegKit.executeAsync(ffmpegCommand);
await session.then((session) async {
 final returnCode = await session.getReturnCode();
 if (ReturnCode.isSuccess(returnCode)) {
 print('Video flipping successful');
 } else {
 print('Video flipping failed: ${session.getAllLogs()}');
 }
});}

void stopVideoRecording() async {
XFile videopath = await cameraController.stopVideoRecording();

try {
 final Directory appDocDir = await 
 getApplicationDocumentsDirectory();
 final String outputDirectory = appDocDir.path;
 final String timeStamp = DateTime.now().millisecondsSinceEpoch.toString();
 final String outputPath = '$outputDirectory/flipped_video_$timeStamp.mp4';

 await flipVideo(videopath.path, outputPath);

 // Once completed,
 Navigator.push(
 context,
 MaterialPageRoute(
 builder: (builder) => VideoViewPage(
 path: File(outputPath),
 fromFrontCamera: iscamerafront,
 flash: flash,
 )));
 print('Video flipping completed');
} catch (e) {
 print('Error flipping video: $e');
}
</void>


}


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In Flutter, how to get image pixel
12 janvier 2024, par Pianonemy code here


var response = await Dio().get(
 url,
 options: Options(responseType: ResponseType.bytes)
);
Uint8List? srcImage = Uint8List.fromList(response.data);
Uint8List? watermark = await captureWaterMark();
Image i = Image.memory(srcImage!);
//how can I get the pixel (Image i) such like 1920*1080 or just width/hight pixel
...tell me how to do...
srcImage = await addWaterMarkByFfmpegCommand(srcImage, watermark);
 final result = await ImageGallerySaver.saveImage(
 srcImage!, name: name,
 );



i need get the pic pixel so that i can use it in ffmpeg command, it a func that add a watermark into srcImage, but cause their pixel ratio too diff to adapted watermark


i try to get pixel from ffmpeg... but i failed


/// addWaterMark by using ffmpeg Command
Future addWaterMarkByFfmpegCommand(Uint8List srcImg, Uint8List watermark) async {
 try {
 final Directory tempDir = await Directory.systemTemp.createTemp();
 final File image1File = File('${tempDir.path}/srcImg.jpg');
 await image1File.writeAsBytes(srcImg);
 final File image2File = File('${tempDir.path}/watermark.png');
 await image2File.writeAsBytes(watermark);

 final String outputFilePath = '${tempDir.path}/output.jpg';
 //when i get srcImage pixel, the positions in bold(iw*1) in the following commands will be replaced to make watermark adapted
 final String command =
 '-i ${image1File.path} -i ${image2File.path} -filter_complex "[1:v]scale=**iw*1**:-1[v1];[0:v][v1]overlay=10:10" -frames:v 1 $outputFilePath';
 await FFmpegKit.execute(command);

 final File outputFile = File(outputFilePath);
 final Uint8List outputBytes = await outputFile.readAsBytes();
 return outputBytes;
 } catch (e) {
 print('Error executing ffmpeg command: $e');
 }
 return null;
}



ps : i am new to flutter and ffmpeg, plz help me, I'd appreciate, thanks alot


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avfilter : take_samples : do not directly return frame when samples are skipped
18 mai 2017, par Muhammad Faizavfilter : take_samples : do not directly return frame when samples are skipped
Modifying data pointer when skipping samples may make it unaligned.
Workaround for Ticket6349.This should fix the crash of ticket's testcase and a crash/regression
with avxsynth (reported by Michael Niedermayer).Also change frame->nb_samples < max to frame->nb_samples <= max.
This improves performance. Benchmark :
./ffmpeg -filter_complex "aevalsrc=0:n=1166,firequalizer=fixed=on" -f null null
old :
25767 decicycles in take_samples, 1023 runs, 1 skips
25422 decicycles in take_samples, 2047 runs, 1 skips
25181 decicycles in take_samples, 4095 runs, 1 skips
24904 decicycles in take_samples, 8191 runs, 1 skipsnew :
550 decicycles in take_samples, 1024 runs, 0 skips
548 decicycles in take_samples, 2048 runs, 0 skips
545 decicycles in take_samples, 4096 runs, 0 skips
544 decicycles in take_samples, 8192 runs, 0 skipsReviewed-by : Nicolas George <george@nsup.org>
Reviewed-by : Michael Niedermayer <michael@niedermayer.cc>
Reviewed-by : Paul B Mahol <onemda@gmail.com>
Signed-off-by : Muhammad Faiz <mfcc64@gmail.com>