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Autres articles (63)
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Personnaliser les catégories
21 juin 2013, parFormulaire de création d’une catégorie
Pour ceux qui connaissent bien SPIP, une catégorie peut être assimilée à une rubrique.
Dans le cas d’un document de type catégorie, les champs proposés par défaut sont : Texte
On peut modifier ce formulaire dans la partie :
Administration > Configuration des masques de formulaire.
Dans le cas d’un document de type média, les champs non affichés par défaut sont : Descriptif rapide
Par ailleurs, c’est dans cette partie configuration qu’on peut indiquer le (...) -
De l’upload à la vidéo finale [version standalone]
31 janvier 2010, parLe chemin d’un document audio ou vidéo dans SPIPMotion est divisé en trois étapes distinctes.
Upload et récupération d’informations de la vidéo source
Dans un premier temps, il est nécessaire de créer un article SPIP et de lui joindre le document vidéo "source".
Au moment où ce document est joint à l’article, deux actions supplémentaires au comportement normal sont exécutées : La récupération des informations techniques des flux audio et video du fichier ; La génération d’une vignette : extraction d’une (...) -
Librairies et binaires spécifiques au traitement vidéo et sonore
31 janvier 2010, parLes logiciels et librairies suivantes sont utilisées par SPIPmotion d’une manière ou d’une autre.
Binaires obligatoires FFMpeg : encodeur principal, permet de transcoder presque tous les types de fichiers vidéo et sonores dans les formats lisibles sur Internet. CF ce tutoriel pour son installation ; Oggz-tools : outils d’inspection de fichiers ogg ; Mediainfo : récupération d’informations depuis la plupart des formats vidéos et sonores ;
Binaires complémentaires et facultatifs flvtool2 : (...)
Sur d’autres sites (9026)
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The FFmpeg just show the number form the input text (no characters , just numbers) error=13, Permission denied
14 avril 2021, par gejivi2011I was trying to use FFmpeg to create a video form gif and audio, on Android 10, doesn't work
The code is working fine on android 9 and below, and not work 10 and above
the Cmd, as I mentioned it is work so good on android 9 and below


String[] cmd = new String[24];
 cmd[0] = "-i";
 cmd[1] = audio.getPath();
 cmd[2] = "-ignore_loop";
 cmd[3] = "0";
 cmd[4] = "-i";
 cmd[5] = image_path;
 cmd[6] = "-vf";
 cmd[7] = "scale=trunc(iw/2)*2:trunc(ih/2)*2";
 cmd[8] = "-filter:v";
 cmd[9] = ayat_drawer + qara_draw;
 cmd[10] = "-vcodec";
 cmd[11] = "libx264";
 cmd[12] = "-pix_fmt";
 cmd[13] = "yuv420p";
 cmd[14] = "-r";
 cmd[15] = "25";
 cmd[16] = "-preset";
 cmd[17] = "ultrafast";
 cmd[18] = "-c:a";
 cmd[19] = "aac";
 cmd[20] = "-b:a";
 cmd[21] = "128k";
 cmd[22] = "-shortest";
 cmd[23] = outputLocation.getPath();


The Java code :


FFmpeg mFFmpeg = FFmpeg.getInstance(context);
 try {
 mFFmpeg.execute(cmd, new ExecuteBinaryResponseHandler() {
 @Override
 public void onProgress(String message) {
 super.onProgress(message);
 callback.onProgress(message);
 }

 @Override
 public void onSuccess(String message) {
 super.onSuccess(message);
 Utils.refreshGallery(outputLocation.getPath(), context);
 callback.onSuccess(outputLocation, "video");
 }

 @Override
 public void onFailure(String message) {
 super.onFailure(message);
 if (outputLocation.exists()) {
 outputLocation.delete();
 }
 callback.onFailure(new IOException(message));
 }

 @Override
 public void onStart() {
 Log.d("TAG", "<ffmpeg>Started command : mFFmpeg " + java.util.Arrays.toString(cmd));
 }

 @Override
 public void onFinish() {
 Log.d("TAG", "<ffmpeg>Finished command : mFFmpeg " + java.util.Arrays.toString(cmd));
 super.onFinish();
 callback.onFinish();
 }
 });
 } catch (FFmpegCommandAlreadyRunningException e) {
 Log.e("MAS" , e.getMessage());
 e.printStackTrace();
 }
</ffmpeg></ffmpeg>

I think that because FFmpeg using Asynctask and it is deprecated


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Converting video to .mp4 format after upload from local system does not show the video only hear sound
18 juillet 2012, par user850234I am using
fileuploader.jsto upload a video file. Now i want to convert the video format to.mp4. I have usedffmpegandphpto convert the video to.mp4after upload. The sample segment i used is$converted = "uploads/".$uniqid.".mp4"; //$uniqid is the id for the video after upload
$cmd = "$ffmpeg -i $sourceUrl -f mp4 $converted"; //$sourceUrl is the path of the videoI have tried to convert
.flvvideo file to.mp4format and it does but the problem is i cannot see the video only hear the sound after converting. Is the conversion line used in$cmdincorrect. Please help. -
youtube-dl - How do I ensure that the "original" video formats are downloaded ?
25 juin 2018, par SchytheronI am building a C# GUI (Windows only) for youtube-dl where I allow the user to pick the desired video quality and framerate but I am having problems with format selection. youtube-dl sometimes downloads either the wrong video file or the wrong audio file (often it is audio) and after merging them I end up with a .mkv file because according to FFmpeg the files I am trying to merge are incompatible.
These are the format selection queries I have tried to far :
bestvideo[height<=?%height%][fps<=?%fps%]+bestaudio/bestand
public string[] qualities = { "4320", "2160", "1440", "1080", "720", "480", "360", "240", "144" };
public string[] framerates = { "60", "50", "48", "30", "24" };
private void buildFormat(int qualSkip,int fpsSkip)
{
string[] qualitiesMin = qualities.Skip(qualSkip).ToArray();
string[] frameratesMin = framerates.Skip(fpsSkip).ToArray();
format = "-f ";
foreach (string quality in qualitiesMin)
{
foreach (string framerate in frameratesMin)
{
format += "bestvideo[height=?" + quality + "][fps=?" + framerate + "]+bestaudio/";
}
}
format += "best";
}In the first one I had a problem where on some videos youtube-dl downloaded a video in a lower framerate than what I requested (for example, if I request 1080p60FPS I get 1080p30FPS). I tried to fix this in the second method by searching for the best video for all qualities and framerates that are equal to or lower than the one I picked (for example, if I pick 1080p60FPS it would look for videos from 1080p60->1080p30->720p60->720p30->...->144p30).
The second method however looks overly convoluted and stupid and another problem still remains. youtube-dl always picks the best audio quality no matter what video quality I choose. I want the audio quality to scale with the video quality (for example, if I pick 144p I want poor audio quality). There has got to be a better way.
Maybe I am explaining this poorly but I basically want youtube-dl to ALWAYS (consistently) download the exact same video and audio format as the one that is displayed in the youtube video player itself for each picked video quality (see image below). How do I do that ?
Example 1, Video and audio format codes of video in 4K (the numbers in the red circles are the format codes) :
Example 2, Video and audio format of same video but this time in 720p :
(should also pick a lower framerate video of same quality if that framerate is not available in the YouTube quality selector, for example 1080p30FPS in a 1080p60FPS video)
Thanks !
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