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The Great Big Beautiful Tomorrow
28 octobre 2011, par
Mis à jour : Octobre 2011
Langue : English
Type : Texte
Autres articles (54)
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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 -
L’utiliser, en parler, le critiquer
10 avril 2011La première attitude à adopter est d’en parler, soit directement avec les personnes impliquées dans son développement, soit autour de vous pour convaincre de nouvelles personnes à l’utiliser.
Plus la communauté sera nombreuse et plus les évolutions seront rapides ...
Une liste de discussion est disponible pour tout échange entre utilisateurs. -
Contribute to translation
13 avril 2011You can help us to improve the language used in the software interface to make MediaSPIP more accessible and user-friendly. You can also translate the interface into any language that allows it to spread to new linguistic communities.
To do this, we use the translation interface of SPIP where the all the language modules of MediaSPIP are available. Just subscribe to the mailing list and request further informantion on translation.
MediaSPIP is currently available in French and English (...)
Sur d’autres sites (8940)
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Changing Audio Volume using FFmpeg Android
23 août 2018, par katarotyAs I have understood, the only way to change
FFmpeg
volume is to do it throught acommand line
.This is what should change the volume of the audio :
ffmpeg -i input.wav -filter:a "volume=1.5" output.wav
Now I have used
FFmpeg
with command line before and it looked like this and gave me no errors :String[] cmd = { "-i" , pcmtowavTempFile.toString(), "-i", mp3towavTempFile.toString(), "-filter_complex", "amix=inputs=2:duration=first:dropout_transition=3", combinedwavTempFile.toString()};
ffmpeg.execute(cmd, new ExecuteBinaryResponseHandler() {
@Override
public void onSuccess(String message) {
super.onSuccess(message);
encodeWavToAAC();
}
@Override
public void onFailure(String message) {
super.onFailure(message);
onError(message);
}
});But If I try to do it with audio volume in the same method, it just ignores it :
String[] cmd = { "-i" , pcmtowavTempFile.toString(), "-filter:a", "volume=1.3", pcmtowavTempFile.toString()};
ffmpeg.execute(cmd, new ExecuteBinaryResponseHandler() {
@Override
public void onSuccess(String message) {
super.onSuccess(message);
}
@Override
public void onFailure(String message) {
super.onFailure(message);
}
});I get neither, no
success or error message
with the last volume change method.Since the volume is there between
" "
, I tried adding this :String[] cmd = { "-i" , pcmtowavTempFile.toString(), "-filter:a", "\"volume=1.3\"", pcmtowavTempFile.toString()};
But the app started crashing after adding this line.
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Simple ffmpeg merge and volume customization
16 juin 2017, par 1234567I have following commands to change volume of audio, video and then merge it.
First, change volume level of a MP3 File.
ffmpeg -i audio.mp3 -vol 100 audio1.mp3
then change volume level of a MP4 File.
ffmpeg -i video.mp4 -vol 300 video1.mp4
and then to merge both audio and video at specific time of video.
String[] complexCommand =
{"-ss", "" + startMs / 1000, "-y", "-i", video1.mp4`,"-i",
audio1.mp3, "-t", "" + (endMs - startMs) / 1000, "-s",
"320x240", "-vcodec", "mpeg4", "-b:v",
"2097152", "-b:a", "48000", "-ac", "2", "-ar", "22050", output.mp4};I want to simplify this into just one process.
How can this be done ?
I tried this command :
String[] complexCommand = {"-i",STORE_DIRECTORY,"-i",yourRealPath,"-filter_complex","[0:a]aformat=sample_fmts=fltp:sample_rates=44100:channel_layouts=stereo,volume=0.5[a1];[1:a]aformat=sample_fmts=fltp:sample_rates=44100:channel_layouts=stereo,volume=0.8[a2];[a1][a2]amerge,pan=stereo:c0code>
I am using
https://github.com/WritingMinds/ffmpeg-android-java
It gave me the error
Unknown encoder '-vcodec'
but when I tried to simply merge audio with video without volume customization, it worked fine. -
Revision a8d44b9915 : [spatial svc]Add layer bitrates options and clean up parsing options from string
5 septembre 2014, par Minghai ShangChanged Paths :
Modify /vpx/src/svc_encodeframe.c
[spatial svc]Add layer bitrates options and clean up parsing options from stringChange-Id : I6e8d3f08c8a8ce3555a498feba471ba9fec411c6