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Autres articles (31)
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Submit bugs and patches
13 avril 2011Unfortunately a software is never perfect.
If you think you have found a bug, report it using our ticket system. Please to help us to fix it by providing the following information : the browser you are using, including the exact version as precise an explanation as possible of the problem if possible, the steps taken resulting in the problem a link to the site / page in question
If you think you have solved the bug, fill in a ticket and attach to it a corrective patch.
You may also (...) -
Publier sur MédiaSpip
13 juin 2013Puis-je poster des contenus à partir d’une tablette Ipad ?
Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir -
Les formats acceptés
28 janvier 2010, parLes commandes suivantes permettent d’avoir des informations sur les formats et codecs gérés par l’installation local de ffmpeg :
ffmpeg -codecs ffmpeg -formats
Les format videos acceptés en entrée
Cette liste est non exhaustive, elle met en exergue les principaux formats utilisés : h264 : H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 m4v : raw MPEG-4 video format flv : Flash Video (FLV) / Sorenson Spark / Sorenson H.263 Theora wmv :
Les formats vidéos de sortie possibles
Dans un premier temps on (...)
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How overlay and trim a video using FFMPEG in android ? [closed]
9 mai 2023, par MuneebI have tried different methods to trim and overlay a video but any commands are not working. But I have two different commands which are working fine separately. If you have any solution or suggestion please Guide me...


//overlay Video Command
complexCommand = new String[]{"-i", String.valueOf(uri), "-i", String.valueOf(watermarkUri), "-filter_complex", "[1][0]scale2ref=oh*mdar:ih*0.07[logo][video];[video][logo]overlay=10:10", outputPath};

//Trim Video Command
complexCommand = new String[]{"-ss", TrimmerUtils.formatCSeconds(lastMinValue),
 "-i", String.valueOf(uri),
 "-s", w + "x" + h, "-r", "30",
 "-vcodec", "mpeg4", "-b:v",
 "1M", "-b:a", "48000", "-ac", "2", "-ar", "22050",
 "-t",
 TrimmerUtils.formatCSeconds(lastMaxValue - lastMinValue), outputPath};



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php fread returns empty after one time of execution for popen
20 avril 2021, par HamedI'm trying to get real-time output from ffmpeg command with popen, but it returns empty after one time of execution in the loop.


<?php

$a = popen('ffpb -i mymovie.mp4 -vf subtitles=subtitles.srt mysubtitledmovie.mp4 2>&1', 'r');


while (true) {
 $b = fread($a, 2096);

 var_dump($b) . "<br />\n";

 ob_flush();
 flush();

 sleep(1);
}



The output : :


mymovie.mp4: 0%| | 0/61080.0 [00:00<?, ? frames/s]"
string(105) "Unexpected exception: 'ascii' codec can't encode characters in position 43-47: ordinal 
not in range(128)
"
string(0) ""
string(0) ""
string(0) ""



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i want ffmpeg command to do transition effect and fadein fadeout between images
21 avril 2017, par praveen splease give the perfect command for to do image animation effects.
public static String[] cmdCreateVideo(int frame,String videoSource, String outPut){
float duration_frame=1.0F;
if (frame<= 20) {
duration_frame = 1.0F;
}else {
duration_frame = 0.6F;
}
String str5 = "-framerate 1/" + duration_frame + " -start_number 0 -i " + videoSource + " -vcodec mpeg4 -q:v 3 -r 20 -vf scale=480x800 " +outPut;
return str5.split(" ");
}this is my command to create video from images ,but i want to add image trasition effect between two images.