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Autres articles (74)
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Les tâches Cron régulières de la ferme
1er décembre 2010, parLa gestion de la ferme passe par l’exécution à intervalle régulier de plusieurs tâches répétitives dites Cron.
Le super Cron (gestion_mutu_super_cron)
Cette tâche, planifiée chaque minute, a pour simple effet d’appeler le Cron de l’ensemble des instances de la mutualisation régulièrement. Couplée avec un Cron système sur le site central de la mutualisation, cela permet de simplement générer des visites régulières sur les différents sites et éviter que les tâches des sites peu visités soient trop (...) -
Other interesting software
13 avril 2011, parWe don’t claim to be the only ones doing what we do ... and especially not to assert claims to be the best either ... What we do, we just try to do it well and getting better ...
The following list represents softwares that tend to be more or less as MediaSPIP or that MediaSPIP tries more or less to do the same, whatever ...
We don’t know them, we didn’t try them, but you can take a peek.
Videopress
Website : http://videopress.com/
License : GNU/GPL v2
Source code : (...) -
Supporting all media types
13 avril 2011, parUnlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)
Sur d’autres sites (10971)
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jpeg2000dec ; optimize output sample convert a bit
1er juin 2013, par Michael Niedermayer -
CoreAudio Output Sample Rate Discrepancy
1er mai 2018, par blackirishmanI am using ffmpeg to acquire audio from .mov files. Looking over my settings, I am not sample rate converting the audio buffers I am generating so that is unlikely to account for the issues I am having. Regardless of the sample rate I set on my Built-in Output, my audio files that are at 44.1 kHz playback at the correct rate. If I playback a 48kHz file, the file plays back slower (at 91% of the normal rate) which indicates that the true rate is 44.1kHz. I can change my built-in output to 44.1, 48, or 96 kHz and the same phenomenon exists. I change my default output rate using the Audio Midi Setup app. I then verify my sample rate using AudioUnitGetProperty on my ouputAudioUnit. This matches the sample rate in the Audio Midi Setup.
Thoughts ? I am including my audio graph code
CheckError(NewAUGraph(&fp.graph), "Couldn't create a new AUGraph");
//varispeednode has an input callback
//the vairspeed node feeds an output node which is running
//at the frequency of the system default output
AUNode outputNode;
AudioComponentDescription outputcd = [self defaultOutputComponent];
CheckError(AUGraphAddNode(fp.graph, &outputcd, &outputNode),
"AUGraphAddNode[kAudioUnitSubType_DefaultOutput] failed");
AUNode varispeedNode;
AudioComponentDescription varispeedcd = [self variSpeedComponent];
CheckError(AUGraphAddNode(fp.graph, &varispeedcd, &varispeedNode),
"AUGraphAddNode[kAudioUnitSubType_Varispeed] failed");
CheckError(AUGraphOpen(fp.graph),
"Couldn't Open AudioGraph");
CheckError(AUGraphNodeInfo(fp.graph, outputNode, NULL, &fp.outputAudioUnit),
"Couldn't Retrieve output node");
CheckError(AUGraphNodeInfo(fp.graph, varispeedNode, NULL, &fp.variSpeedAudioUnit),
"Couldn't Retrieve Varispeed Audio Unit");
AURenderCallbackStruct input;
input.inputProc = CBufferProviderCallback;
input.inputProcRefCon = &playerStruct;
CheckError(AudioUnitSetProperty(fp.variSpeedAudioUnit,
kAudioUnitProperty_SetRenderCallback,
kAudioUnitScope_Input,
0,
&input,
sizeof(input)),
"AudioUnitSetProperty failed");
CheckError(AUGraphConnectNodeInput(fp.graph, varispeedNode, 0, outputNode, 0),
"Couldn't Connect varispeed to output");
CheckError(AUGraphInitialize(fp.graph),
"Couldn't Initialize AUGraph");
// check output sample rate
Float64 outputSampleRate = 48000.0;
UInt32 sizeOfFloat64 = sizeof(Float64);
outputSampleRate = 0.0;
CheckError(AudioUnitGetProperty(fp.outputAudioUnit,
kAudioUnitProperty_SampleRate,
kAudioUnitScope_Global,
0,
&outputSampleRate,
&sizeOfFloat64),
"Couldn't get output sampleRate"); -
avformat/movenc : fix sample size being zero in pcmC
26 juillet 2023, par Zhao Zhili