Recherche avancée
Autres articles (67)
-
Mise à jour de la version 0.1 vers 0.2
24 juin 2013, parExplications des différents changements notables lors du passage de la version 0.1 de MediaSPIP à la version 0.3. Quelles sont les nouveautés
Au niveau des dépendances logicielles Utilisation des dernières versions de FFMpeg (>= v1.2.1) ; Installation des dépendances pour Smush ; Installation de MediaInfo et FFprobe pour la récupération des métadonnées ; On n’utilise plus ffmpeg2theora ; On n’installe plus flvtool2 au profit de flvtool++ ; On n’installe plus ffmpeg-php qui n’est plus maintenu au (...) -
Participer à sa traduction
10 avril 2011Vous pouvez nous aider à améliorer les locutions utilisées dans le logiciel ou à traduire celui-ci dans n’importe qu’elle nouvelle langue permettant sa diffusion à de nouvelles communautés linguistiques.
Pour ce faire, on utilise l’interface de traduction de SPIP où l’ensemble des modules de langue de MediaSPIP sont à disposition. ll vous suffit de vous inscrire sur la liste de discussion des traducteurs pour demander plus d’informations.
Actuellement MediaSPIP n’est disponible qu’en français et (...) -
Gestion des droits de création et d’édition des objets
8 février 2011, parPar défaut, beaucoup de fonctionnalités sont limitées aux administrateurs mais restent configurables indépendamment pour modifier leur statut minimal d’utilisation notamment : la rédaction de contenus sur le site modifiables dans la gestion des templates de formulaires ; l’ajout de notes aux articles ; l’ajout de légendes et d’annotations sur les images ;
Sur d’autres sites (9168)
-
C# FFMPEG : Code bugs out and stops producing media files
24 mai 2020, par HamezI've made a joke program in C# that uses ffmpeg to edit videos with different effects such as stuttering. I've finished 3 effects so far and each of them work on their own but as soon as I put one after another
e.g. fx.CrashStutter(0, 2); fx.CrashBeep(2, 2); fx.Wow(4, 2);
The code breaks and no longer produces photo/video files but once I stop debugging the file it was supposed to be processing appears. I've used a system where it loops over trying to execute a command to create a text file as a marker for when ffmpeg is done processing a file. The debug console also repeatedly says "The process tried to write to a nonexistent pipe."


Here's the code for all 3 effects :



public void Wow(double start, double duration)
 {
 if (fxstart == true)
 {
 //MessageBox.Show("WowFX Duration" + duration);
 string folderName = ("W_s" + start);
 System.Threading.Thread.Sleep(100);
 FXcmd.StandardInput.WriteLine("mkdir " + folderName);
 System.Threading.Thread.Sleep(100);
 FXcmd.StandardInput.WriteLine("cd " + folderName);
 System.Threading.Thread.Sleep(100);
 FXcmd.StandardInput.WriteLine("ffmpeg -ss " + start + " -t " + (duration / 6) + " -i " + source + " a.mp4");
 //wait until a.mp4 appears
 while (File.Exists("FxSource(Temporary)\\" + folderName + "\\a.txt") == false)
 {
 /*aha got a live one!*/FXcmd.StandardInput.WriteLine(" echo a > a.txt");
 System.Threading.Thread.Sleep(1500);
 }
 FXcmd.StandardInput.WriteLine("ffmpeg -i a.mp4 -vf reverse -af areverse b.mp4");
 //wait until b.mp4 appears
 while (File.Exists("FxSource(Temporary)\\" + folderName + "\\b.txt") == false)
 {
 FXcmd.StandardInput.WriteLine(" echo b > b.txt");
 System.Threading.Thread.Sleep(1500);
 }
 FXcmd.StandardInput.WriteLine("ffmpeg -ss " + start + " -t " + (duration / 3) + " -i " + source + " c.mp4");
 //wait until c.mp4 appears
 while (File.Exists("FxSource(Temporary)\\" + folderName + "\\c.txt") == false)
 {
 FXcmd.StandardInput.WriteLine(" echo c > c.txt");
 System.Threading.Thread.Sleep(1500);
 }
 FXcmd.StandardInput.WriteLine("ffmpeg -i c.mp4 -vf reverse -af areverse d.mp4");
 //wait until d.mp4 appears
 while (File.Exists("FxSource(Temporary)\\" + folderName + "\\d.txt") == false)
 {
 FXcmd.StandardInput.WriteLine(" echo d > d.txt");
 System.Threading.Thread.Sleep(1500);
 }
 string[] concatList = { "file 'a.mp4'", "file 'b.mp4'", "file 'c.mp4'", "file 'd.mp4'" };
 //FXcmd.StandardInput.Write("del a.txt, b.txt, c.txt, d.txt");
 //System.Threading.Thread.Sleep(1000);
 System.IO.File.WriteAllLines(("FxSource(Temporary)\\" + folderName + "\\concatList.txt"), concatList);
 System.Threading.Thread.Sleep(1500);
 FXcmd.StandardInput.WriteLine("ffmpeg -f concat -i concatList.txt -c copy " + folderName + ".mp4");
 while (File.Exists("FxSource(Temporary)\\" + folderName + "\\" + "1.txt") == false)
 {
 FXcmd.StandardInput.WriteLine(" echo 1 > 1.txt");
 System.Threading.Thread.Sleep(1500);
 }
 FXcmd.StandardInput.WriteLine("copy " + folderName + ".mp4 ..");
 while (File.Exists("FxSource(Temporary)\\" + folderName + ".mp4") == false)
 {
 System.Threading.Thread.Sleep(1500);
 }
 FXcmd.StandardInput.WriteLine("cd ..");
 System.Threading.Thread.Sleep(100);
 FXcmd.StandardInput.WriteLine("cls");
 FXcmd.StandardInput.Flush();
 }
 }
 public void CrashStutter(int start, int duration)
 {
 if (fxstart == true)
 {
 string folderName = ("Cs_s" + start);
 System.Threading.Thread.Sleep(100);
 FXcmd.StandardInput.WriteLine("mkdir " + folderName);
 System.Threading.Thread.Sleep(100);
 FXcmd.StandardInput.WriteLine("cd " + folderName);
 System.Threading.Thread.Sleep(100);
 FXcmd.StandardInput.WriteLine("ffmpeg -ss " + start + " -t 0.1" + " -i " + source + " a.mp4");
 System.Threading.Thread.Sleep(100);
 while (File.Exists("FxSource(Temporary)\\" + folderName + "\\a.txt") == false)
 {
 FXcmd.StandardInput.WriteLine(" echo a > a.txt");
 System.Threading.Thread.Sleep(1500);
 }
 FXcmd.StandardInput.WriteLine("ffmpeg -stream_loop "+10*duration+" -i a.mp4 "+folderName+".mp4");
 while (File.Exists("FxSource(Temporary)\\" + folderName + "\\" + "1.txt") == false)
 {
 FXcmd.StandardInput.WriteLine(" echo 1 > 1.txt");
 System.Threading.Thread.Sleep(1500);
 }
 FXcmd.StandardInput.WriteLine("copy " + folderName + ".mp4 ..");
 while (File.Exists("FxSource(Temporary)\\" + folderName + ".mp4") == false)
 {
 System.Threading.Thread.Sleep(1500);
 }
 FXcmd.StandardInput.WriteLine("cd ..");
 System.Threading.Thread.Sleep(100);
 FXcmd.StandardInput.WriteLine("cls");
 FXcmd.StandardInput.Flush();
 }
 }
 public void CrashBeep(int start, int duration)
 {
 //this effect cannot last longer than 7 seconds
 double contrast = 25;
 double red = 0.75;
 if (fxstart == true)
 {
 string folderName = ("Cb_s" + start);
 FXcmd.StandardInput.WriteLine("mkdir " + folderName);
 System.Threading.Thread.Sleep(100);
 FXcmd.StandardInput.WriteLine("cd " + folderName);
 System.Threading.Thread.Sleep(100);
 /*gets stuck*/FXcmd.StandardInput.WriteLine("ffmpeg -i "+source+ " -vf fps=1 a.jpg");
 System.Threading.Thread.Sleep(100);
 while (File.Exists("FxSource(Temporary)\\" + folderName + "\\a.txt") == false)
 {
 FXcmd.StandardInput.WriteLine(" echo a > a.txt");
 System.Threading.Thread.Sleep(1500);
 }
 FXcmd.StandardInput.WriteLine("ffmpeg -i a.jpg -vf eq=contrast="+contrast+" b.jpg");
 while (File.Exists("FxSource(Temporary)\\" + folderName + "\\b.txt") == false)
 {
 FXcmd.StandardInput.WriteLine(" echo b > b.txt");
 System.Threading.Thread.Sleep(1500);
 }
 FXcmd.StandardInput.WriteLine("ffmpeg -i b.jpg -vf colorbalance=rm=" + red + " c.jpg");
 while (File.Exists("FxSource(Temporary)\\" + folderName + "\\c.txt") == false)
 {
 FXcmd.StandardInput.WriteLine(" echo > c.txt");
 System.Threading.Thread.Sleep(1500);
 }
 FXcmd.StandardInput.WriteLine("ffmpeg -loop 1 -i c.jpg -c:v libx264 -t "+ duration +" -pix_fmt yuv420p -vf scale=1920:1080 d.mp4");
 while (File.Exists("FxSource(Temporary)\\" + folderName + "\\d.txt") == false)
 {
 FXcmd.StandardInput.WriteLine(" echo d > d.txt");
 System.Threading.Thread.Sleep(1500);
 }
 FXcmd.StandardInput.WriteLine("cd ..");
 System.Threading.Thread.Sleep(100);
 FXcmd.StandardInput.WriteLine("copy beep.mp3 "+folderName+"/beep.mp3");
 System.Threading.Thread.Sleep(100);
 FXcmd.StandardInput.WriteLine("cd "+folderName);
 System.Threading.Thread.Sleep(100);
 FXcmd.StandardInput.WriteLine("ffmpeg -i beep.mp3 -ss 0 -t " + duration + " e.mp3");
 while (File.Exists("FxSource(Temporary)\\" + folderName + "\\e.txt") == false)
 {
 FXcmd.StandardInput.WriteLine(" echo e > e.txt");
 System.Threading.Thread.Sleep(1500);
 }
 FXcmd.StandardInput.WriteLine("ffmpeg -i d.mp4 -i e.mp3 -c copy -map 0:v:0 -map 1:a:0 " + folderName + ".mp4");
 while (File.Exists("FxSource(Temporary)\\" + folderName + "\\" + "1.txt") == false)
 {
 FXcmd.StandardInput.WriteLine(" echo 1 > 1.txt");
 System.Threading.Thread.Sleep(1500);
 }
 FXcmd.StandardInput.WriteLine("copy " + folderName + ".mp4 ..");
 while (File.Exists("FxSource(Temporary)\\" + folderName + ".mp4") == false)
 {
 System.Threading.Thread.Sleep(1500);
 }
 FXcmd.StandardInput.WriteLine("cd ..");
 System.Threading.Thread.Sleep(100);
 FXcmd.StandardInput.WriteLine("cls");
 FXcmd.StandardInput.Flush();
 }
 }



Any suggestions ? Thanks !


-
Live streaming HLS on Red 5 Media Server on Windows Server
31 juillet 2013, par user1516711I am trying to develop a streaming server using Red 5 on Windows Server that would have two clients, a web app running on Windows 8 PCs and an iOS app.
The problem I'm facing is that iOS only supports HLS and Red 5 only supports RTSP/RTMP, so I need to convert incoming streams from HLS to RTSP/RTMP and outgoing streams from RTMP/RTSP to HLS using FFMPEG commands. How would I go about this ? Should I modify the Red 5 server code or is there a better alternative ?
-
Create audio/video, audio only, and video only HLS playlist version of the same media file
15 avril 2020, par Kevin PaekI have a
media.mp4file.


Currently I convert it to an HLS playlist with this command :



ffmpeg -y -i \
 "media.mp4" \
 -g 48 -sc_threshold 0 \
 -profile:v baseline -level:v 3.0 -pix_fmt yuv420p \
 -map 0:0 -map 0:1 -map 0:0 -map 0:1 \
 -map 0:0 -map 0:1 -map 0:0 -map 0:1 \
 -map 0:0 -map 0:1 -map 0:0 -map 0:1 \
 -c copy \
 -s:v:0 256x144 -c:v:0 libx264 -b:v:0 200k -minrate:v:0 200k -maxrate:v:0 200k -bufsize:v:0 200k \
 -s:v:1 426x240 -c:v:1 libx264 -b:v:1 400k -minrate:v:1 400k -maxrate:v:1 400k -bufsize:v:1 400k \
 -s:v:2 640x360 -c:v:2 libx264 -b:v:2 700k -minrate:v:2 700k -maxrate:v:2 700k -bufsize:v:2 700k \
 -s:v:3 854x480 -c:v:3 libx264 -b:v:3 1280k -minrate:v:3 1280k -maxrate:v:3 1280k -bufsize:v:3 1280k \
 -s:v:4 1280x720 -c:v:4 libx264 -b:v:4 2560k -minrate:v:4 2560k -maxrate:v:4 2560k -bufsize:v:4 2560k \
 -s:v:5 1920x1080 -c:v:5 libx264 -b:v:5 5120k -minrate:v:5 5120k -maxrate:v:5 5120k -bufsize:v:5 5120k \
 -var_stream_map "v:0,a:0 v:1,a:1 v:2,a:2 v:3,a:3 v:4,a:4 v:5,a:5" \
 -master_pl_name "master.m3u8" \
 -f hls \
 -hls_playlist_type vod \
 -hls_time 5 \
 -hls_list_size 0 \
 -hls_flags split_by_time+round_durations \
 -start_number 1 \
 -hls_segment_filename "av/%v/%02d.ts" \
 "av/%v/prog_index.m3u8"



I can create audio only and video only version with the
-anand-vnflags, but it would convert the file 3 times.


Is there a way I can create all three versions with only 1 conversion ?



I couldn't figure out a way to convert the resulting
master.m3u8into and audio only and video only version.
Also tried creating aconverted_media.mp4then using that to just copy the audio and video streams and just make the 3 playlists, but that didn't work either.


Any help appreciated.


Syndiquer tout le site
