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Autres articles (83)
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Encoding and processing into web-friendly formats
13 avril 2011, parMediaSPIP automatically converts uploaded files to internet-compatible formats.
Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
All uploaded files are stored online in their original format, so you can (...) -
MediaSPIP Player : problèmes potentiels
22 février 2011, parLe lecteur ne fonctionne pas sur Internet Explorer
Sur Internet Explorer (8 et 7 au moins), le plugin utilise le lecteur Flash flowplayer pour lire vidéos et son. Si le lecteur ne semble pas fonctionner, cela peut venir de la configuration du mod_deflate d’Apache.
Si dans la configuration de ce module Apache vous avez une ligne qui ressemble à la suivante, essayez de la supprimer ou de la commenter pour voir si le lecteur fonctionne correctement : /** * GeSHi (C) 2004 - 2007 Nigel McNie, (...) -
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 (...)
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iPhone - A problem with decoding H264 using ffmpeg
25 mars 2012, par HAPPY_TIGERI am working with ffmpeg to decode H264 stream from server.
I referenced DecoderWrapper from http://github.com/dropcam/dropcam_for_iphone.
I compiled it successfully, but I don't know how use it.
Here are the function that has problem.
- (id)initWithCodec:(enum VideoCodecType)codecType
colorSpace:(enum VideoColorSpace)colorSpace
width:(int)width
height:(int)height
privateData:(NSData*)privateData {
if(self = [super init]) {
codec = avcodec_find_decoder(CODEC_ID_H264);
codecCtx = avcodec_alloc_context();
// Note: for H.264 RTSP streams, the width and height are usually not specified (width and height are 0).
// These fields will become filled in once the first frame is decoded and the SPS is processed.
codecCtx->width = width;
codecCtx->height = height;
codecCtx->extradata = av_malloc([privateData length]);
codecCtx->extradata_size = [privateData length];
[privateData getBytes:codecCtx->extradata length:codecCtx->extradata_size];
codecCtx->pix_fmt = PIX_FMT_YUV420P;
#ifdef SHOW_DEBUG_MV
codecCtx->debug_mv = 0xFF;
#endif
srcFrame = avcodec_alloc_frame();
dstFrame = avcodec_alloc_frame();
int res = avcodec_open(codecCtx, codec);
if (res < 0)
{
NSLog(@"Failed to initialize decoder");
}
}
return self;
}What is the privateData parameter of this function ? I don't know how to set the parameter...
Now avcodec_decode_video2 returns -1 ;
The framedata is coming successfully.
How solve this problem.
Thanks a lot.
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PJSIP with SDL and FFMPEG for iPhone [closed]
14 décembre 2012, par John QualisHas anyone been able to compile PJSIP with SDL and FFMPEG support for iOS ?
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How to get rid of iPhone pointer uint8_t warning ?
18 décembre 2012, par WinstonI'm using FFMPeg on my iPhone project, but I'm getting a warning when using
AVFrame *pFrame
, like this :AVFrame *pFrame
uint8_t *data[AV_NUM_DATA_POINTERS];
...
pFrame->dataThis is the warning I'm getting :
Passing 'uint8_t *[8]' to parameter of type 'const uint8_t *const *' (aka 'const unsigned char *const *') discards qualifiers in nested pointer types
How do I get rid of this warning ?
Thank you !