mad-dev September 2005

mad-dev@lists.mars.org

8 participants
13 discussions

Synchronization error near the end of file
by Marcello Maggioni 14 Sep '05

14 Sep '05

Hi all, I'm tring to get started with "libmad" so I've tried to make an application very similar to "minimad.c" , the one included in the source code, only that instead of reading and writing from STDIN to STDOUT it reads and writes from and to files. The problem that I get is that I get a strange synchronization error near the end of the file : Decoding /balthasar/****.mp3 0 <-- ID3Tad size decoding error 0x0101 (lost synchronization) at byte offset 3072836 The actual size of the file is : 3072949 I get this almost with every file I try to decode. I manage the input by creating with "malloc()" a memory area of "unsigned chars" of the size of the file , then I fread the mp3 file into memory and pass the pointer to the callback input function . I miss something or I made any mistakes? Thanks for your help. Bye Marcello PS= Do you know how to check the correctness of a Raw 16bit PCM stream?? I've tried to play my file with many players , but it doesn't work. Sorry but I'm a newbie of digital audio :)

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buffering madlib samples
by Swapnil Wagle 05 Sep '05

05 Sep '05

Hello, I am trying to play the converted PCM samples from Madlib on PalmOS..But the speed at which Madlib decodes the samples is too high.I am not able to buffer all the samples at one time whicih results in buffer overlapping.I wanted to know whether it is possible to make the Madlib libarary wait for a while till all the current samples have been played. Regards, Swapnil

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Quyery regarding using madlib for decoding streaming mp3 chunks
by Swapnil Wagle 02 Sep '05

02 Sep '05

Hello, Thanks to all you people finally half of the job has been done.I have been able to convert the mp3 file into a wave file on PALM device.And the conversion quality is superb. However my main intension for using Madlib is a different one.So I had some doubts regarding whether this can be done or not. I want to use madlib for decoding the mp3 data that comes from the shoutcast servers.So I wanted ot know whether this can be accomplished using madlib. And whether it will be able to decode chunks of data if given in any order? Regards, Swapnil

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mad-dev September 2005