100 lines
2.5 KiB
C++
100 lines
2.5 KiB
C++
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#include "none.h"
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#include "hooks/audio/audio.h"
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#include "hooks/audio/backends/wasapi/audio_client.h"
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const WAVEFORMATEXTENSIBLE &NoneBackend::format() const noexcept {
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return format_;
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}
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HRESULT NoneBackend::on_initialize(
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AUDCLNT_SHAREMODE *ShareMode,
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DWORD *StreamFlags,
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REFERENCE_TIME *hnsBufferDuration,
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REFERENCE_TIME *hnsPeriodicity,
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const WAVEFORMATEX *pFormat,
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LPCGUID AudioSessionGuid) noexcept
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{
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*ShareMode = AUDCLNT_SHAREMODE_SHARED;
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*StreamFlags = AUDCLNT_STREAMFLAGS_EVENTCALLBACK |
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AUDCLNT_STREAMFLAGS_RATEADJUST |
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AUDCLNT_STREAMFLAGS_AUTOCONVERTPCM |
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AUDCLNT_STREAMFLAGS_SRC_DEFAULT_QUALITY;
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*hnsBufferDuration = 100000;
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*hnsPeriodicity = 100000;
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log_info("audio::none", "on_initialize");
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return S_OK;
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}
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HRESULT NoneBackend::on_get_buffer_size(uint32_t *buffer_frames) noexcept {
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*buffer_frames = 0;
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return S_OK;
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}
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HRESULT NoneBackend::on_get_stream_latency(REFERENCE_TIME *latency) noexcept {
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*latency = 100000;
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return S_OK;
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}
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HRESULT NoneBackend::on_get_current_padding(std::optional<uint32_t> &padding_frames) noexcept {
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padding_frames = 0;
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return S_OK;
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}
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HRESULT NoneBackend::on_is_format_supported(
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AUDCLNT_SHAREMODE *ShareMode,
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const WAVEFORMATEX *pFormat,
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WAVEFORMATEX **ppClosestMatch) noexcept
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{
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// only accept 44.1 kHz, stereo, 16-bits per channel
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if (*ShareMode == AUDCLNT_SHAREMODE_EXCLUSIVE &&
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pFormat->nChannels == 2 &&
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pFormat->nSamplesPerSec == 44100 &&
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pFormat->wBitsPerSample == 16)
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{
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return S_OK;
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}
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return AUDCLNT_E_UNSUPPORTED_FORMAT;
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}
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HRESULT NoneBackend::on_get_mix_format(WAVEFORMATEX **pp_device_format) noexcept {
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return E_NOTIMPL;
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}
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HRESULT NoneBackend::on_get_device_period(
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REFERENCE_TIME *default_device_period,
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REFERENCE_TIME *minimum_device_period)
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{
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*default_device_period = 10000;
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*minimum_device_period = 10000;
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return S_OK;
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}
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HRESULT NoneBackend::on_start() noexcept {
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return S_OK;
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}
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HRESULT NoneBackend::on_stop() noexcept {
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return S_OK;
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}
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HRESULT NoneBackend::on_set_event_handle(HANDLE *event_handle) {
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*event_handle = CreateEvent(nullptr, true, false, nullptr);
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return S_OK;
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}
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HRESULT NoneBackend::on_get_buffer(uint32_t num_frames_requested, BYTE **ppData) {
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static BYTE buf[10000];
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*ppData = buf;
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return S_OK;
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}
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HRESULT NoneBackend::on_release_buffer(uint32_t num_frames_written, DWORD dwFlags) {
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return S_OK;
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}
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NoneBackend::NoneBackend() : format_(hooks::audio::FORMAT)
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{
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}
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