What is the largest sized MP3 that Songplayer etc can handle?

[stu232]

I've converted a 50 minute Podcast from 128Kbps, 44.1Khz 16b stereo to 32Kbps, 11Khz 8 bit mono CBR.

(it's a spoken word MP3)

The resulting file size is approx 23Mb, yet any time I try to load the file I get an error telling me that it is an unsupported file format!?

I've converted many files to the same settings and they all play fine, however all the other files are much MUCH smaller.

Are there any MP3 players on the A1200 that read from FatMem, as I suspect the MP3 is being loaded into Chipmem, of which I only have 2mb.

[daxb]

As far as I know Songplayer has not particular file size limit. At least I can play a 600MB aiff file without problems. Maybe something went wrong while converting? Most Player use buffer for playback so they don`t use much memory.

[stu232]

I can play the same file AIFF format. I think I'll just convert everything to AIFF, it seems a lot easier.

[Nobby_UK]

Yup --- Bad file

I just tried:
MPEG1-III, 103:24, 80kbps, 11025 Hz/16b
MPEG2-III, 47:49, 56 kbps, 11025 Hz/16b
MPEG1-III, 79:16, 32 kbps, 11025 Hz/16b
MPEG1-III, 45:04, 128 kbps, 11025 Hz/16b
MPEG1-III, 36:59, 128 kbps, 11025 Hz/16b

All played fine.

[stu232]

Originally Posted by Nobby_UK

Yup --- Bad file

I just tried:
MPEG1-III, 103:24, 80kbps, 11025 Hz/16b
MPEG2-III, 47:49, 56 kbps, 11025 Hz/16b
MPEG1-III, 79:16, 32 kbps, 11025 Hz/16b
MPEG1-III, 45:04, 128 kbps, 11025 Hz/16b
MPEG1-III, 36:59, 128 kbps, 11025 Hz/16b

All played fine.

And you're playing this on a real Amiga 1200 with no FPU?

[daxb]

I`m using mpega.library 2.4 [68040/60] that don`t use FPU. You may check your mpega.library version.

[Nobby_UK]

+ Apollo 040/25 (with FPU +MMU)

[Daedalus]

Songplayer doesn't load the entire song into memory so it shouldn't be a big deal. As well as that, I doubt mpega.library it's doing the decoding in chip RAM - that would cause all sorts of bottlenecks during a task that is probably quite taxing already. My guess is like the others - a bad file header or some other sort of corruption.

[stu232]

I've deleted and recreated the same MP3 a few times, my PC can play it and I got no errors during encoding. I created another file, this one was 32mb and it gives me the same error on the Amiga, it definately seems to be size related.

I chopped the same MP3 into 5 parts and encoded them individually, they all play fine on the Amiga.

[daxb]

Did you checked MaxTransfer value? You can use MaxTransTest from Thomas to check it there is a problem. Or copy large files to HD and make a byte by byte compare.