Mike Melanson wrote: > Just curious, what have you done for testing and validation? Does it > "pass" the conformance suite (to within reasonable PSNR)?
Just conducted some tests, on some streams it seems ok, on others not. These are al00_48 to al05_48. stddev: 0.70 PSNR:99.34 bytes:716800 stddev: 0.69 PSNR:99.43 bytes:786432 stddev: 0.69 PSNR:99.42 bytes:786432 stddev: 0.69 PSNR:99.43 bytes:786432 stddev: 19.86 PSNR:70.36 bytes:786432 stddev: 30.43 PSNR:66.65 bytes:1417216 So, there seem to be some kind of issue still lingering. I've also discovered that it outputs the samples inverted. This should be as well fixed I guess. I've only tested the last one with FAAD (there seems to be some kind of bug in faad/ffmpeg integrations making it always output stereo, the first 5 streams are mono) stddev: 0.70 PSNR:99.36 bytes:1417216 Apparently FAAD does the right thing. OTOH, if I compare the output from FAAD and aac.c using an AAC stream from iTunes (this is what i've been used previously), it looks ok: stddev: 0.05 PSNR:122.12 bytes:38842368 Probably, the reference streams is exercising some tool which is not commonly used and where it might be some bug lurking. I cannot tell any difference by just listening on the streams though. Either way, I'll have a look at it and come back when I know whats going on .. _______________________________________________ FFmpeg-soc mailing list [email protected] https://lists.mplayerhq.hu/mailman/listinfo/ffmpeg-soc
