From: Edward H. <bi...@gm...> - 2008-11-19 12:04:21
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Let me rephrase it in another way: The most efficient way to use libmad with GStreamer is how it's being done in the mad gstreamer plugin. If you want to do it another way you're: 1. looking for trouble 2. doubling your work 3. going to end up with a really inefficient plugin Why do you want to load everything in memory ? What's going to happen if I give it a one hour podcast ? you're going to load the 60Mbytes in memory. Edward On Wed, 2008-11-19 at 17:21 +0530, Gnanasekar wrote: > No , I am not .I am not going to do in the same way as mad used libmad > decoder. > I was planned to dump the whole data (each 4K) in to a single buffer > and passing that > buffer to decoder_init function of libmad which is doing decode > oparation and processing those stuffs.Because decoder_int takes whole > size of the source file(thats why i have been transfered all 4K's to a > single buffer). > > So my functionality is goes like this, > > filesrc -> passing 4K for each iteration > Gbuf -> my own buffer for holding all 4K's in a single buffer > decoder_init(&Gbuf) -> passing Gbuf to decoder_init (libmad function) > input ,output,error -> these are callback functions which is defined > in libmad.I am using all these call back functions altogether with > this decode of libmad. > > whether my flow is fine or any changes needed in the flow? > > Thanks and Regards, > SK.Gnanasekar > > > > > Edward Hervey wrote: > > So... > > > > Let me get this right. You want to create your own plugin using > > 'libmad' and for that you're looking at the code from the mad plugins > > which ... already uses 'libmad'. > > > > You realize you're trying to do the EXACT SAME THING as the mad > > plugin ? > > > > Edward > > > > > > On Wed, 2008-11-19 at 14:59 +0530, Gnanasekar wrote: > > > > > Hi all, > > > > > > I am working on developing plug-in for mp3.From the help of > > > mad plugin i found some of the ideas.from this what i came to know is > > > filesrc is getting an every 4K of data and passing it to chain function > > > of mad plugin.Here in chain this 4K is processed in some manner and > > > pushed to ( gst_pad_push (filter->srcpad, buf) ) source pad. > > > > > > But the thing is that i dont want to use this mad .. i have to > > > use my own plugin for mp3 decoder ... for this i found a decoder called > > > libmad. which is having some decoding algorithm. > > > But it is getting data as a single buffer of whole data. > > > > > > My query is that > > > 1. how to pass whole data from filesrc to plugin decoder? > > > 2. how to use libmad in my plugin ? > > > 3. how to pass output of decoded data to alsasink or osssink ? > > > > > > Thanks and regards, > > > SK.Gnanasekar, > > > > > > > > > > > > ------------------------------------------------------------------------- > > > This SF.Net email is sponsored by the Moblin Your Move Developer's challenge > > > Build the coolest Linux based applications with Moblin SDK & win great prizes > > > Grand prize is a trip for two to an Open Source event anywhere in the world > > > http://moblin-contest.org/redirect.php?banner_id=100&url=/ > > > _______________________________________________ > > > gstreamer-devel mailing list > > > gst...@li... > > > https://lists.sourceforge.net/lists/listinfo/gstreamer-devel > > > > > > > > > > |