bicarusandGitHub
48033816a8
## Link to GitHub Issue or related Pull Request, if one exists n/a ## Description of change Resampler: Implement resampler for exclusive mode streams, as we are seeing more and more devices - not just laptops but onboard audio devices - that only support 48khz and not 44.1khz. Should work with volume boost (gain calculated inside resample) and also downmixer (hands off intermediate scratch buffers). Buffer size increase: By default many of these games request a tiny buffer when in shared mode (TDJ uses 3ms). On some audio setup this results in crackling due to underflow. Add an option to forcibly increase the buffer size. ## Testing With resampler set to 48kHz and buffer set to 20ms I can reliably boot and play IIDX on my display port monitor's speakers; previously this wasn't possible. IIDX is event-driven. Tested SDVX7 as well at 48kHz, which opens timer-driven streams.
61 lines
1.7 KiB
C++
61 lines
1.7 KiB
C++
#pragma once
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#include <cstdint>
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#include <optional>
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#include <string>
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#include <windows.h>
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#include <mmreg.h>
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#ifndef _MSC_VER
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#include <ks.h>
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#include <ksmedia.h>
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#endif
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namespace hooks::audio {
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enum class Backend {
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Asio,
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WaveOut,
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};
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// surround-to-stereo downmix algorithm
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enum class DownmixAlgorithm {
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FrontOnly, // keep only the front channels
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RearOnly, // keep only the rear/back channels
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SideOnly, // keep only the side channels
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AC4, // AC-4 stereo downmix coefficients (ETSI TS 103 190-1)
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Normalize, // all channels equally loud, LFE dropped
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};
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extern bool ENABLED;
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extern bool VOLUME_HOOK_ENABLED;
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extern std::optional<DownmixAlgorithm> DOWNMIX_ALGORITHM;
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extern float VOLUME_BOOST;
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// target sample rate the hooked output is resampled to, if set
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extern std::optional<uint32_t> RESAMPLE_RATE;
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// minimum WASAPI exclusive buffer duration (milliseconds), if set. enlarges the device buffer
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// to avoid underrun crackle on endpoints that cannot service a tiny buffer in time.
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extern std::optional<uint32_t> EXCLUSIVE_BUFFER_MS;
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extern bool USE_DUMMY;
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extern WAVEFORMATEXTENSIBLE FORMAT;
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extern std::optional<Backend> BACKEND;
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extern std::optional<size_t> ASIO_DRIVER_ID;
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extern std::string ASIO_DRIVER_NAME;
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extern bool ASIO_FORCE_UNLOAD_ON_STOP;
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extern bool LOW_LATENCY_SHARED_WASAPI;
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void init();
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void stop();
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inline std::optional<Backend> name_to_backend(const char *value) {
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if (_stricmp(value, "asio") == 0) {
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return Backend::Asio;
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} else if (_stricmp(value, "waveout") == 0) {
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return Backend::WaveOut;
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}
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return std::nullopt;
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}
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}
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