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Added a Dolby Pro Logic II (DPL2) decoder in the OpenAL backend. DPL2 audio is decoded to 5.1. Code adapted from ffdshow.

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Added an option in the DSP settings to disable the DPL2 decoder in case Dolphin incorrectly detects a 5.1 audio system.
Updated the OpenAL files to OpenAL Soft 1.15.1 in the Windows build.

Fixes issue 3023.
This commit is contained in:
skidau
2013-01-11 14:03:09 +11:00
parent c7ccf7e5c6
commit 80f4475e76
20 changed files with 2598 additions and 1566 deletions
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6
Source/Core/AudioCommon/Src/OpenALStream.h
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@ -26,12 +26,14 @@
#ifdef _WIN32
#include <OpenAL/include/al.h>
#include <OpenAL/include/alc.h>
#include <OpenAL/include/alext.h>
#elif defined __APPLE__
#include <OpenAL/al.h>
#include <OpenAL/alc.h>
#else
#include <AL/al.h>
#include <AL/alc.h>
#include <AL/alext.h>
#endif
#include "Core.h"
@ -44,6 +46,8 @@
#define SFX_MAX_SOURCE 1
#define OAL_NUM_BUFFERS 16
#define OAL_MAX_SAMPLES 512
#define SURROUND_CHANNELS 6 // number of channels in surround mode
#define SIZE_FLOAT 4 // size of a float in bytes
#endif
class OpenALStream: public SoundStream
@ -72,7 +76,7 @@ private:
Common::Event mainSyncEvent;
short realtimeBuffer[OAL_MAX_SAMPLES * 2];
soundtouch::SAMPLETYPE sampleBuffer[OAL_MAX_SAMPLES * 2 * OAL_NUM_BUFFERS];
soundtouch::SAMPLETYPE sampleBuffer[OAL_MAX_SAMPLES * SIZE_FLOAT * SURROUND_CHANNELS * OAL_NUM_BUFFERS];
ALuint uiBuffers[OAL_NUM_BUFFERS];
ALuint uiSource;
ALfloat fVolume;