Resample mp3 in 32000Hz

[sum2012]

Helps #5213

Hope merge in v1.11 so that chinese people 1 more reason to update

[unknownbrackets]

Does this fix it or is it just theoretical? What is the sample rate of the mp3s included in the game?

Looks backwards to me; this is the sample rate of the data. We want it to resample to 44.1kHz always, presumably. This line seems to assume the input is always 44.1kHz:

Au->decoder = new SimpleAudio(Au->audioType);

But my tests had shown that non-44.1kHz mp3s were rejected by sceMp3 anyway.

	if (ctx->SamplingRate == -1) {
		return hleDelayResult(hleReportError(ME, ERROR_AVCODEC_INVALID_DATA, "invalid sample rate v%d l%d rate %02x", versionBits, layerBits, (header >> 10) & 0x3), "mp3 init", PARSE_DELAY_MS);
	} else if (ctx->SamplingRate != 44100) {
		// TODO: Should return 0x80671302 (unsupported sample rate?)
		WARN_LOG_REPORT(ME, "sceMp3Init: invalid data: not 44.1kHz");
	}

https://report.ppsspp.org/logs/kind/1036

-[Unknown]

[sum2012]

The second sound is old woman but "current master is male and the sound like robot"
This patch is really fix it.

48:09:122 user_main N[ME]: HLE\sceMp3.cpp:411 sceMp3Init(): channels=1, samplerate=32000Hz, bitrate=48kbps

How about only resample for channels==1 ?

[sum2012]

Read again my jpcsptrace
https://gist.github.com/sum2012/e2d513c55342c40f5e12
This game's SamplingRate (32000Hz) is not rejected
Your test is something wrong

[hrydgard]

Leave the 48000 check in place but also allow 32000 for now then... So that we don't change what gets called for the 44100 case. Until we can figure out why the resampling seems backwards but still works, and what is actually allowed...