/* * This file is part of mpv. * * Original author: Jonathan Yong <10walls@gmail.com> * * mpv is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * mpv is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with mpv. If not, see . */ #include #include #include #include #include #include #include #include #include #include #include "audio/out/ao_wasapi_utils.h" #include "audio/format.h" #include "osdep/io.h" #include "osdep/timer.h" #define MIXER_DEFAULT_LABEL L"mpv - video player" DEFINE_PROPERTYKEY(mp_PKEY_Device_FriendlyName, 0xa45c254e, 0xdf1c, 0x4efd, 0x80, 0x20, 0x67, 0xd1, 0x46, 0xa8, 0x50, 0xe0, 14); DEFINE_PROPERTYKEY(mp_PKEY_Device_DeviceDesc, 0xa45c254e, 0xdf1c, 0x4efd, 0x80, 0x20, 0x67, 0xd1, 0x46, 0xa8, 0x50, 0xe0, 2); // CEA 861 subformats // should work on vista DEFINE_GUID(mp_KSDATAFORMAT_SUBTYPE_IEC61937_DTS, 0x00000008, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71); DEFINE_GUID(mp_KSDATAFORMAT_SUBTYPE_IEC61937_DOLBY_DIGITAL, 0x00000092, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71); // might require 7+ DEFINE_GUID(mp_KSDATAFORMAT_SUBTYPE_IEC61937_AAC, 0x00000006, 0x0cea, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71); DEFINE_GUID(mp_KSDATAFORMAT_SUBTYPE_IEC61937_MPEG3, 0x00000004, 0x0cea, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71); DEFINE_GUID(mp_KSDATAFORMAT_SUBTYPE_IEC61937_DOLBY_DIGITAL_PLUS, 0x0000000a, 0x0cea, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71); DEFINE_GUID(mp_KSDATAFORMAT_SUBTYPE_IEC61937_DTS_HD, 0x0000000b, 0x0cea, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71); DEFINE_GUID(mp_KSDATAFORMAT_SUBTYPE_IEC61937_DOLBY_MLP, 0x0000000c, 0x0cea, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71); struct wasapi_fmt_mapping { const GUID *subtype; int format; }; const struct wasapi_fmt_mapping wasapi_fmt_table[] = { {&mp_KSDATAFORMAT_SUBTYPE_IEC61937_DOLBY_DIGITAL, AF_FORMAT_S_AC3}, {&mp_KSDATAFORMAT_SUBTYPE_IEC61937_DTS, AF_FORMAT_S_DTS}, {&mp_KSDATAFORMAT_SUBTYPE_IEC61937_AAC, AF_FORMAT_S_AAC}, {&mp_KSDATAFORMAT_SUBTYPE_IEC61937_MPEG3, AF_FORMAT_S_MP3}, {&mp_KSDATAFORMAT_SUBTYPE_IEC61937_DOLBY_MLP, AF_FORMAT_S_TRUEHD}, {&mp_KSDATAFORMAT_SUBTYPE_IEC61937_DOLBY_DIGITAL_PLUS, AF_FORMAT_S_EAC3}, {&mp_KSDATAFORMAT_SUBTYPE_IEC61937_DTS_HD, AF_FORMAT_S_DTSHD}, {0} }; static const GUID *format_to_subtype(int format) { if (AF_FORMAT_IS_SPECIAL(format)) { for (int i = 0; wasapi_fmt_table[i].format; i++) { if (wasapi_fmt_table[i].format == format) return wasapi_fmt_table[i].subtype; } return &KSDATAFORMAT_SPECIFIER_NONE; } else if (AF_FORMAT_IS_FLOAT(format)) { return &KSDATAFORMAT_SUBTYPE_IEEE_FLOAT; } return &KSDATAFORMAT_SUBTYPE_PCM; } // "solve" the under-determined inverse of format_to_subtype by // assuming the input subtype is "special" (i.e. IEC61937) static int special_subtype_to_format(const GUID *subtype) { for (int i = 0; wasapi_fmt_table[i].format; i++) { if (IsEqualGUID(subtype, wasapi_fmt_table[i].subtype)) return wasapi_fmt_table[i].format; } return 0; } char *mp_GUID_to_str_buf(char *buf, size_t buf_size, const GUID *guid) { snprintf(buf, buf_size, "{%8.8x-%4.4x-%4.4x-%2.2x%2.2x-%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x}", (unsigned) guid->Data1, guid->Data2, guid->Data3, guid->Data4[0], guid->Data4[1], guid->Data4[2], guid->Data4[3], guid->Data4[4], guid->Data4[5], guid->Data4[6], guid->Data4[7]); return buf; } char *mp_PKEY_to_str_buf(char *buf, size_t buf_size, const PROPERTYKEY *pkey) { buf = mp_GUID_to_str_buf(buf, buf_size, &pkey->fmtid); size_t guid_len = strnlen(buf, buf_size); snprintf(buf + guid_len, buf_size - guid_len, ",%"PRIu32, (uint32_t) pkey->pid); return buf; } static char *wasapi_explain_err(const HRESULT hr) { #define E(x) case x : return # x ; switch (hr) { E(S_OK) E(S_FALSE) E(E_FAIL) E(E_OUTOFMEMORY) E(E_POINTER) E(E_HANDLE) E(E_NOTIMPL) E(E_INVALIDARG) E(E_PROP_ID_UNSUPPORTED) E(REGDB_E_IIDNOTREG) E(CO_E_NOTINITIALIZED) E(AUDCLNT_E_NOT_INITIALIZED) E(AUDCLNT_E_ALREADY_INITIALIZED) E(AUDCLNT_E_WRONG_ENDPOINT_TYPE) E(AUDCLNT_E_DEVICE_INVALIDATED) E(AUDCLNT_E_NOT_STOPPED) E(AUDCLNT_E_BUFFER_TOO_LARGE) E(AUDCLNT_E_OUT_OF_ORDER) E(AUDCLNT_E_UNSUPPORTED_FORMAT) E(AUDCLNT_E_INVALID_SIZE) E(AUDCLNT_E_DEVICE_IN_USE) E(AUDCLNT_E_BUFFER_OPERATION_PENDING) E(AUDCLNT_E_THREAD_NOT_REGISTERED) E(AUDCLNT_E_EXCLUSIVE_MODE_NOT_ALLOWED) E(AUDCLNT_E_ENDPOINT_CREATE_FAILED) E(AUDCLNT_E_SERVICE_NOT_RUNNING) E(AUDCLNT_E_EVENTHANDLE_NOT_EXPECTED) E(AUDCLNT_E_EXCLUSIVE_MODE_ONLY) E(AUDCLNT_E_BUFDURATION_PERIOD_NOT_EQUAL) E(AUDCLNT_E_EVENTHANDLE_NOT_SET) E(AUDCLNT_E_INCORRECT_BUFFER_SIZE) E(AUDCLNT_E_BUFFER_SIZE_ERROR) E(AUDCLNT_E_CPUUSAGE_EXCEEDED) E(AUDCLNT_E_BUFFER_ERROR) E(AUDCLNT_E_BUFFER_SIZE_NOT_ALIGNED) E(AUDCLNT_E_INVALID_DEVICE_PERIOD) E(AUDCLNT_E_INVALID_STREAM_FLAG) E(AUDCLNT_E_ENDPOINT_OFFLOAD_NOT_CAPABLE) E(AUDCLNT_E_RESOURCES_INVALIDATED) E(AUDCLNT_S_BUFFER_EMPTY) E(AUDCLNT_S_THREAD_ALREADY_REGISTERED) E(AUDCLNT_S_POSITION_STALLED) default: return ""; } #undef E } char *mp_HRESULT_to_str_buf(char *buf, size_t buf_size, HRESULT hr) { snprintf(buf, buf_size, "%s (0x%"PRIx32")", wasapi_explain_err(hr), (uint32_t) hr); return buf; } bool wasapi_fill_VistaBlob(wasapi_state *state) { if (!state) goto exit_label; state->VistaBlob.hAvrt = LoadLibraryW(L"avrt.dll"); if (!state->VistaBlob.hAvrt) goto exit_label; state->VistaBlob.pAvSetMmThreadCharacteristicsW = (HANDLE (WINAPI *)(LPCWSTR, LPDWORD)) GetProcAddress(state->VistaBlob.hAvrt, "AvSetMmThreadCharacteristicsW"); if (!state->VistaBlob.pAvSetMmThreadCharacteristicsW) goto exit_label; state->VistaBlob.pAvRevertMmThreadCharacteristics = (WINBOOL (WINAPI *)(HANDLE)) GetProcAddress(state->VistaBlob.hAvrt, "AvRevertMmThreadCharacteristics"); if (!state->VistaBlob.pAvRevertMmThreadCharacteristics) goto exit_label; return true; exit_label: if (state->VistaBlob.hAvrt) { FreeLibrary(state->VistaBlob.hAvrt); state->VistaBlob.hAvrt = NULL; } return false; } static void update_waveformat_datarate(WAVEFORMATEXTENSIBLE *wformat) { WAVEFORMATEX *wf = &wformat->Format; wf->nBlockAlign = wf->nChannels * wf->wBitsPerSample / 8; wf->nAvgBytesPerSec = wf->nSamplesPerSec * wf->nBlockAlign; } static void set_waveformat(WAVEFORMATEXTENSIBLE *wformat, int format, WORD valid_bits, DWORD samplerate, struct mp_chmap *channels) { wformat->Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE; wformat->Format.nChannels = channels->num; wformat->Format.nSamplesPerSec = samplerate; wformat->Format.wBitsPerSample = af_fmt2bits(format); wformat->Format.cbSize = sizeof(WAVEFORMATEXTENSIBLE) - sizeof(WAVEFORMATEX); wformat->SubFormat = *format_to_subtype(format); wformat->Samples.wValidBitsPerSample = valid_bits ? valid_bits : wformat->Format.wBitsPerSample; wformat->dwChannelMask = mp_chmap_to_waveext(channels); update_waveformat_datarate(wformat); } // This implicitly transforms all pcm formats to: // interleaved / signed (except 8-bit is unsigned) / waveext channel order. // "Special" formats should be exempt as they should already // satisfy these properties. static void set_waveformat_with_ao(WAVEFORMATEXTENSIBLE *wformat, struct ao *ao) { struct mp_chmap channels = ao->channels; mp_chmap_reorder_to_waveext(&channels); set_waveformat(wformat, ao->format, 0, ao->samplerate, &channels); } // other wformat parameters must already be set with set_waveformat static void change_waveformat_samplerate(WAVEFORMATEXTENSIBLE *wformat, DWORD samplerate) { wformat->Format.nSamplesPerSec = samplerate; update_waveformat_datarate(wformat); } // other wformat parameters must already be set with set_waveformat static void change_waveformat_channels(WAVEFORMATEXTENSIBLE *wformat, struct mp_chmap *channels) { wformat->Format.nChannels = channels->num; wformat->dwChannelMask = mp_chmap_to_waveext(channels); update_waveformat_datarate(wformat); } static WORD waveformat_valid_bits(const WAVEFORMATEX *wf) { if (wf->wFormatTag == WAVE_FORMAT_EXTENSIBLE) { WAVEFORMATEXTENSIBLE *wformat = (WAVEFORMATEXTENSIBLE *)wf; return wformat->Samples.wValidBitsPerSample; } else { return wf->wBitsPerSample; } } static int format_from_waveformat(WAVEFORMATEX *wf) { int format; switch (wf->wFormatTag) { case WAVE_FORMAT_EXTENSIBLE: { WAVEFORMATEXTENSIBLE *wformat = (WAVEFORMATEXTENSIBLE *)wf; if (IsEqualGUID(&wformat->SubFormat, &KSDATAFORMAT_SUBTYPE_PCM)) { format = wf->wBitsPerSample == 8 ? AF_FORMAT_U8 : AF_FORMAT_S32; } else if (IsEqualGUID(&wformat->SubFormat, &KSDATAFORMAT_SUBTYPE_IEEE_FLOAT)) { format = AF_FORMAT_FLOAT; } else { format = special_subtype_to_format(&wformat->SubFormat); } break; } case WAVE_FORMAT_PCM: format = wf->wBitsPerSample == 8 ? AF_FORMAT_U8 : AF_FORMAT_S32; break; case WAVE_FORMAT_IEEE_FLOAT: format = AF_FORMAT_FLOAT; break; default: return 0; } // https://msdn.microsoft.com/en-us/library/windows/hardware/ff538802%28v=vs.85%29.aspx: // Since mpv doesn't have the notion of "valid bits", we just specify a // format with the container size. The least significant, "invalid" // bits will be excess precision ignored by wasapi. // The change_bits operations should be a no-op for properly // configured "special" formats, otherwise it will return 0. return af_fmt_change_bits(format, wf->wBitsPerSample); } static bool chmap_from_waveformat(struct mp_chmap *channels, const WAVEFORMATEX *wf) { if (wf->wFormatTag == WAVE_FORMAT_EXTENSIBLE) { WAVEFORMATEXTENSIBLE *wformat = (WAVEFORMATEXTENSIBLE *)wf; mp_chmap_from_waveext(channels, wformat->dwChannelMask); } else { mp_chmap_from_channels(channels, wf->nChannels); } if (channels->num != wf->nChannels) { mp_chmap_from_str(channels, bstr0("empty")); return false; } return true; } static char *waveformat_to_str_buf(char *buf, size_t buf_size, WAVEFORMATEX *wf) { struct mp_chmap channels; chmap_from_waveformat(&channels, wf); unsigned valid_bits = waveformat_valid_bits(wf); char validstr[12] = ""; if (valid_bits != wf->wBitsPerSample) snprintf(validstr, sizeof(validstr), " (%u valid)", valid_bits); snprintf(buf, buf_size, "%s %s%s @ %uhz", mp_chmap_to_str(&channels), af_fmt_to_str(format_from_waveformat(wf)), validstr, (unsigned) wf->nSamplesPerSec); return buf; } #define waveformat_to_str(wf) waveformat_to_str_buf((char[40]){0}, 40, (wf)) static void waveformat_copy(WAVEFORMATEXTENSIBLE* dst, WAVEFORMATEX* src) { if (src->wFormatTag == WAVE_FORMAT_EXTENSIBLE) { *dst = *(WAVEFORMATEXTENSIBLE *)src; } else { dst->Format = *src; } } static bool set_ao_format(struct ao *ao, WAVEFORMATEX *wf, AUDCLNT_SHAREMODE share_mode) { struct wasapi_state *state = ao->priv; int format = format_from_waveformat(wf); if (!format) { MP_ERR(ao, "Unable to construct sample format from WAVEFORMAT %s\n", waveformat_to_str(wf)); return false; } // Do not touch the ao for passthrough, just assume that we set WAVEFORMATEX correctly. if (!AF_FORMAT_IS_SPECIAL(format)) { struct mp_chmap channels; if (!chmap_from_waveformat(&channels, wf)) { MP_ERR(ao, "Unable to construct channel map from WAVEFORMAT %s\n", waveformat_to_str(wf)); return false; } ao->samplerate = wf->nSamplesPerSec; ao->format = format; ao->channels = channels; } waveformat_copy(&state->format, wf); state->share_mode = share_mode; return true; } static bool try_format_exclusive(struct ao *ao, WAVEFORMATEXTENSIBLE *wformat) { struct wasapi_state *state = ao->priv; MP_VERBOSE(ao, "Trying %s (exclusive)\n", waveformat_to_str(&wformat->Format)); HRESULT hr = IAudioClient_IsFormatSupported(state->pAudioClient, AUDCLNT_SHAREMODE_EXCLUSIVE, &wformat->Format, NULL); if (hr != AUDCLNT_E_UNSUPPORTED_FORMAT) EXIT_ON_ERROR(hr); return hr == S_OK; exit_label: MP_ERR(state, "Error testing exclusive format: %s\n", mp_HRESULT_to_str(hr)); return false; } static bool search_sample_formats(struct ao *ao, WAVEFORMATEXTENSIBLE *wformat, int samplerate, struct mp_chmap *channels) { // some common bit depths / container sizes (requests welcome) int try[] = {AF_FORMAT_DOUBLE, AF_FORMAT_FLOAT, AF_FORMAT_S32, AF_FORMAT_S24 , AF_FORMAT_S32 , AF_FORMAT_S16, AF_FORMAT_U8 , 0}; unsigned valid[] = {0 , 0, 0, 0 , 24, 0, 0 }; for (int i = 0; try[i]; i++) { set_waveformat(wformat, try[i], valid[i], samplerate, channels); if (try_format_exclusive(ao, wformat)) return true; } wformat->Format.wBitsPerSample = 0; return false; } static bool search_samplerates(struct ao *ao, WAVEFORMATEXTENSIBLE *wformat, struct mp_chmap *channels) { // try list of typical sample rates (requests welcome) int try[] = {8000, 11025, 16000, 22050, 32000, 44100, 48000, 88200, 96000, 176400, 192000, 352800, 384000, 0}; // get a list of supported rates int n = 0; int supported[MP_ARRAY_SIZE(try)] = {0}; wformat->Format.wBitsPerSample = 0; for (int i = 0; try[i]; i++) { if (!wformat->Format.wBitsPerSample) { if (search_sample_formats(ao, wformat, try[i], channels)) supported[n++] = try[i]; } else { change_waveformat_samplerate(wformat, try[i]); if (try_format_exclusive(ao, wformat)) supported[n++] = try[i]; } } for (int i = 0; supported[i]; i++) { // first choose the lowest integer multiple of the sample rate if (!(supported[i] % ao->samplerate)) { change_waveformat_samplerate(wformat, supported[i]); return true; } } // then choose the highest supported (if any) if (n) { change_waveformat_samplerate(wformat, supported[n-1]); return true; } // otherwise, this is probably an unsupported channel map wformat->Format.nSamplesPerSec = 0; return false; } static bool search_channels(struct ao *ao, WAVEFORMATEXTENSIBLE *wformat) { struct wasapi_state *state = ao->priv; struct mp_chmap_sel chmap_sel = {.tmp = state}; struct mp_chmap entry; // put common layouts first so that we find sample rate/format early char *channel_layouts[] = {"mono", "stereo", "2.1", "4.0", "5.0", "5.1", "6.1", "7.1", "3.0", "3.0(back)", "quad", "quad(side)", "3.1", "5.0(side)", "4.1", "5.1(side)", "6.0", "6.0(front)", "hexagonal" "6.1(back)", "6.1(front)", "7.0", "7.0(front)", "7.1(wide)", "7.1(wide-side)", "7.1(rear)", "octagonal", NULL}; wformat->Format.nSamplesPerSec = 0; for (int j = 0; channel_layouts[j]; j++) { mp_chmap_from_str(&entry, bstr0(channel_layouts[j])); if (!wformat->Format.nSamplesPerSec) { if (search_samplerates(ao, wformat, &entry)) { mp_chmap_sel_add_map(&chmap_sel, &entry); MP_VERBOSE(ao, "%s is supported\n", waveformat_to_str(&wformat->Format)); } } else { change_waveformat_channels(wformat, &entry); if (try_format_exclusive(ao, wformat)) { mp_chmap_sel_add_map(&chmap_sel, &entry); MP_VERBOSE(ao, "%s is supported\n", mp_chmap_to_str(&entry)); } } } entry = ao->channels; if (ao_chmap_sel_adjust(ao, &chmap_sel, &entry)){ change_waveformat_channels(wformat, &entry); return true; } MP_ERR(ao, "No suitable audio format found\n"); return false; } static bool find_formats_exclusive(struct ao *ao, bool do_search) { WAVEFORMATEXTENSIBLE wformat; set_waveformat_with_ao(&wformat, ao); // Try the requested format as is. If that doesn't work, and the // do_search argument is set, do the pcm format search. if (!try_format_exclusive(ao, &wformat) && (!do_search || !search_channels(ao, &wformat))) return false; if (!set_ao_format(ao, &wformat.Format, AUDCLNT_SHAREMODE_EXCLUSIVE)) return false; MP_VERBOSE(ao, "Accepted as %s %s @ %dhz (exclusive)\n", mp_chmap_to_str(&ao->channels), af_fmt_to_str(ao->format), ao->samplerate); return true; } static bool find_formats_shared(struct ao *ao) { struct wasapi_state *state = ao->priv; WAVEFORMATEXTENSIBLE wformat; set_waveformat_with_ao(&wformat, ao); MP_VERBOSE(ao, "Trying %s (shared)\n", waveformat_to_str(&wformat.Format)); WAVEFORMATEX *closestMatch; HRESULT hr = IAudioClient_IsFormatSupported(state->pAudioClient, AUDCLNT_SHAREMODE_SHARED, &wformat.Format, &closestMatch); if (hr != AUDCLNT_E_UNSUPPORTED_FORMAT) EXIT_ON_ERROR(hr); switch (hr) { case S_OK: break; case S_FALSE: waveformat_copy(&wformat, closestMatch); CoTaskMemFree(closestMatch); MP_VERBOSE(ao, "Closest match is %s\n", waveformat_to_str(&wformat.Format)); break; default: hr = IAudioClient_GetMixFormat(state->pAudioClient, &closestMatch); EXIT_ON_ERROR(hr); waveformat_copy(&wformat, closestMatch); MP_VERBOSE(ao, "Fallback to mix format %s\n", waveformat_to_str(&wformat.Format)); CoTaskMemFree(closestMatch); } if (!set_ao_format(ao, &wformat.Format, AUDCLNT_SHAREMODE_SHARED)) return false; MP_VERBOSE(ao, "Accepted as %s %s @ %dhz (shared)\n", mp_chmap_to_str(&ao->channels), af_fmt_to_str(ao->format), ao->samplerate); return true; exit_label: MP_ERR(state, "Error finding shared mode format: %s\n", mp_HRESULT_to_str(hr)); return false; } static bool find_formats(struct ao *ao) { struct wasapi_state *state = ao->priv; if (state->opt_exclusive) { // If exclusive is requested, try the requested format (which // might be passthrough). If that fails, do a pcm format // search. return find_formats_exclusive(ao, true); } else if (AF_FORMAT_IS_SPECIAL(ao->format)) { // If a passthrough format is requested, but exclusive mode // was not explicitly set, try only the requested passthrough // format in exclusive mode. Fall back on shared mode if that // fails without doing the exclusive pcm format search. if (find_formats_exclusive(ao, false)) return true; } // Default is to use shared mode return find_formats_shared(ao); } static HRESULT init_clock(struct wasapi_state *state) { HRESULT hr = IAudioClient_GetService(state->pAudioClient, &IID_IAudioClock, (void **)&state->pAudioClock); EXIT_ON_ERROR(hr); hr = IAudioClock_GetFrequency(state->pAudioClock, &state->clock_frequency); EXIT_ON_ERROR(hr); QueryPerformanceFrequency(&state->qpc_frequency); atomic_store(&state->sample_count, 0); MP_VERBOSE(state, "IAudioClock::GetFrequency gave a frequency of %"PRIu64".\n", (uint64_t) state->clock_frequency); return S_OK; exit_label: MP_ERR(state, "Error obtaining the audio device's timing: %s\n", mp_HRESULT_to_str(hr)); return hr; } static HRESULT init_session_display(struct wasapi_state *state) { wchar_t path[MAX_PATH+12] = {0}; HRESULT hr = IAudioClient_GetService(state->pAudioClient, &IID_IAudioSessionControl, (void **)&state->pSessionControl); EXIT_ON_ERROR(hr); GetModuleFileNameW(NULL, path, MAX_PATH); lstrcatW(path, L",-IDI_ICON1"); hr = IAudioSessionControl_SetDisplayName(state->pSessionControl, MIXER_DEFAULT_LABEL, NULL); EXIT_ON_ERROR(hr); hr = IAudioSessionControl_SetIconPath(state->pSessionControl, path, NULL); EXIT_ON_ERROR(hr); return S_OK; exit_label: MP_WARN(state, "Error setting audio session display name: %s\n", mp_HRESULT_to_str(hr)); return S_OK; // No reason to abort initialization. } static HRESULT fix_format(struct ao *ao) { struct wasapi_state *state = ao->priv; REFERENCE_TIME devicePeriod, bufferDuration, bufferPeriod; MP_DBG(state, "IAudioClient::GetDevicePeriod\n"); HRESULT hr = IAudioClient_GetDevicePeriod(state->pAudioClient,&devicePeriod, NULL); MP_VERBOSE(state, "Device period: %.2g ms\n", (double) devicePeriod / 10000.0 ); /* integer multiple of device period close to 50ms */ bufferPeriod = bufferDuration = ceil(50.0 * 10000.0 / devicePeriod) * devicePeriod; /* handle unsupported buffer size */ /* hopefully this shouldn't happen because of the above integer device period */ /* http://msdn.microsoft.com/en-us/library/windows/desktop/dd370875%28v=vs.85%29.aspx */ int retries=0; reinit: if (state->share_mode == AUDCLNT_SHAREMODE_SHARED) bufferPeriod = 0; MP_DBG(state, "IAudioClient::Initialize\n"); hr = IAudioClient_Initialize(state->pAudioClient, state->share_mode, AUDCLNT_STREAMFLAGS_EVENTCALLBACK, bufferDuration, bufferPeriod, &(state->format.Format), NULL); /* something about buffer sizes on Win7 */ if (hr == AUDCLNT_E_BUFFER_SIZE_NOT_ALIGNED) { if (retries > 0) { EXIT_ON_ERROR(hr); } else { retries ++; } MP_VERBOSE(state, "IAudioClient::Initialize negotiation failed with %s, used %lld * 100ns\n", mp_HRESULT_to_str(hr), bufferDuration); IAudioClient_GetBufferSize(state->pAudioClient, &state->bufferFrameCount); bufferPeriod = bufferDuration = (REFERENCE_TIME) ((10000.0 * 1000 / state->format.Format.nSamplesPerSec * state->bufferFrameCount) + 0.5); IAudioClient_Release(state->pAudioClient); state->pAudioClient = NULL; hr = IMMDeviceActivator_Activate(state->pDevice, &IID_IAudioClient, CLSCTX_ALL, NULL, (void **)&state->pAudioClient); goto reinit; } EXIT_ON_ERROR(hr); MP_DBG(state, "IAudioClient::Initialize pRenderClient\n"); hr = IAudioClient_GetService(state->pAudioClient, &IID_IAudioRenderClient, (void **)&state->pRenderClient); EXIT_ON_ERROR(hr); MP_DBG(state, "IAudioClient::Initialize pAudioVolume\n"); hr = IAudioClient_GetService(state->pAudioClient, &IID_ISimpleAudioVolume, (void **)&state->pAudioVolume); EXIT_ON_ERROR(hr); MP_DBG(state, "IAudioClient::Initialize IAudioClient_SetEventHandle\n"); hr = IAudioClient_SetEventHandle(state->pAudioClient, state->hWake); EXIT_ON_ERROR(hr); MP_DBG(state, "IAudioClient::Initialize IAudioClient_GetBufferSize\n"); hr = IAudioClient_GetBufferSize(state->pAudioClient, &state->bufferFrameCount); EXIT_ON_ERROR(hr); ao->device_buffer = state->bufferFrameCount; state->buffer_block_size = state->format.Format.nChannels * state->format.Format.wBitsPerSample / 8 * state->bufferFrameCount; bufferDuration = (REFERENCE_TIME) ((10000.0 * 1000 / state->format.Format.nSamplesPerSec * state->bufferFrameCount) + 0.5); MP_VERBOSE(state, "Buffer frame count: %"PRIu32" (%.2g ms)\n", state->bufferFrameCount, (double) bufferDuration / 10000.0 ); hr = init_clock(state); EXIT_ON_ERROR(hr); hr = init_session_display(state); EXIT_ON_ERROR(hr); if (state->VistaBlob.hAvrt) { state->hTask = state->VistaBlob.pAvSetMmThreadCharacteristicsW(L"Pro Audio", &state->taskIndex); } MP_VERBOSE(state, "Format fixed. Using %lld byte buffer block size\n", (long long) state->buffer_block_size); return S_OK; exit_label: MP_ERR(state, "Error initializing device: %s\n", mp_HRESULT_to_str(hr)); return hr; } static char* get_device_id(IMMDevice *pDevice) { if (!pDevice) return NULL; LPWSTR devid = NULL; char *idstr = NULL; HRESULT hr = IMMDevice_GetId(pDevice, &devid); EXIT_ON_ERROR(hr); idstr = mp_to_utf8(NULL, devid); if (strstr(idstr, "{0.0.0.00000000}.")) { char *stripped = talloc_strdup(NULL, idstr + strlen("{0.0.0.00000000}.")); talloc_free(idstr); idstr = stripped; } exit_label: SAFE_RELEASE(devid, CoTaskMemFree(devid)); return idstr; } static char* get_device_name(IMMDevice *pDevice) { if (!pDevice) return NULL; IPropertyStore *pProps = NULL; char *namestr = NULL; HRESULT hr = IMMDevice_OpenPropertyStore(pDevice, STGM_READ, &pProps); EXIT_ON_ERROR(hr); PROPVARIANT devname; PropVariantInit(&devname); hr = IPropertyStore_GetValue(pProps, &mp_PKEY_Device_FriendlyName, &devname); EXIT_ON_ERROR(hr); namestr = mp_to_utf8(NULL, devname.pwszVal); exit_label: PropVariantClear(&devname); SAFE_RELEASE(pProps, IPropertyStore_Release(pProps)); return namestr; } static char* get_device_desc(IMMDevice *pDevice) { if (!pDevice) return NULL; IPropertyStore *pProps = NULL; char *desc = NULL; HRESULT hr = IMMDevice_OpenPropertyStore(pDevice, STGM_READ, &pProps); EXIT_ON_ERROR(hr); PROPVARIANT devdesc; PropVariantInit(&devdesc); hr = IPropertyStore_GetValue(pProps, &mp_PKEY_Device_DeviceDesc, &devdesc); EXIT_ON_ERROR(hr); desc = mp_to_utf8(NULL, devdesc.pwszVal); exit_label: PropVariantClear(&devdesc); SAFE_RELEASE(pProps, IPropertyStore_Release(pProps)); return desc; } // frees *idstr static int device_id_match(char *idstr, char *candidate) { if (idstr == NULL || candidate == NULL) return 0; int found = 0; #define FOUND(x) do { found = (x); goto end; } while(0) if (strcmp(idstr, candidate) == 0) FOUND(1); if (strstr(idstr, "{0.0.0.00000000}.")) { char *start = idstr + strlen("{0.0.0.00000000}."); if (strcmp(start, candidate) == 0) FOUND(1); } #undef FOUND end: talloc_free(idstr); return found; } void wasapi_list_devs(struct ao *ao, struct ao_device_list *list) { struct wasapi_state *state = ao->priv; IMMDeviceCollection *pDevices = NULL; IMMDevice *pDevice = NULL; char *name = NULL, *id = NULL; HRESULT hr = IMMDeviceEnumerator_EnumAudioEndpoints(state->pEnumerator, eRender, DEVICE_STATE_ACTIVE, &pDevices); EXIT_ON_ERROR(hr); int count; hr = IMMDeviceCollection_GetCount(pDevices, &count); EXIT_ON_ERROR(hr); if (count > 0) MP_VERBOSE(ao, "Output devices:\n"); for (int i = 0; i < count; i++) { hr = IMMDeviceCollection_Item(pDevices, i, &pDevice); EXIT_ON_ERROR(hr); name = get_device_name(pDevice); id = get_device_id(pDevice); if (!id) { hr = E_FAIL; EXIT_ON_ERROR(hr); } char *safe_name = name ? name : ""; ao_device_list_add(list, ao, &(struct ao_device_desc){id, safe_name}); MP_VERBOSE(ao, "#%d, GUID: \'%s\', name: \'%s\'\n", i, id, safe_name); talloc_free(name); talloc_free(id); SAFE_RELEASE(pDevice, IMMDevice_Release(pDevice)); } SAFE_RELEASE(pDevices, IMMDeviceCollection_Release(pDevices)); return; exit_label: MP_ERR(ao, "Error enumerating devices: %s\n", mp_HRESULT_to_str(hr)); talloc_free(name); talloc_free(id); SAFE_RELEASE(pDevice, IMMDevice_Release(pDevice)); SAFE_RELEASE(pDevices, IMMDeviceCollection_Release(pDevices)); } static HRESULT load_default_device(struct ao *ao, IMMDeviceEnumerator* pEnumerator, IMMDevice **ppDevice) { HRESULT hr = IMMDeviceEnumerator_GetDefaultAudioEndpoint(pEnumerator, eRender, eMultimedia, ppDevice); EXIT_ON_ERROR(hr); char *id = get_device_id(*ppDevice); MP_VERBOSE(ao, "Default device ID: %s\n", id); talloc_free(id); return S_OK; exit_label: MP_ERR(ao , "Error loading default device: %s\n", mp_HRESULT_to_str(hr)); return hr; } static HRESULT find_and_load_device(struct ao *ao, IMMDeviceEnumerator* pEnumerator, IMMDevice **ppDevice, char *search) { HRESULT hr; IMMDeviceCollection *pDevices = NULL; IMMDevice *pTempDevice = NULL; LPWSTR deviceID = NULL; char *end; int devno = strtol(search, &end, 10); char *devid = NULL; if (end == search || *end) devid = search; int search_err = 0; if (devid == NULL) { hr = IMMDeviceEnumerator_EnumAudioEndpoints(pEnumerator, eRender, DEVICE_STATE_ACTIVE, &pDevices); EXIT_ON_ERROR(hr); int count; IMMDeviceCollection_GetCount(pDevices, &count); if (devno >= count) { MP_ERR(ao, "No device #%d\n", devno); } else { MP_VERBOSE(ao, "Finding device #%d\n", devno); hr = IMMDeviceCollection_Item(pDevices, devno, &pTempDevice); EXIT_ON_ERROR(hr); hr = IMMDevice_GetId(pTempDevice, &deviceID); EXIT_ON_ERROR(hr); MP_VERBOSE(ao, "Found device #%d\n", devno); } } else { hr = IMMDeviceEnumerator_EnumAudioEndpoints(pEnumerator, eRender, DEVICE_STATE_ACTIVE|DEVICE_STATE_UNPLUGGED, &pDevices); EXIT_ON_ERROR(hr); int count; IMMDeviceCollection_GetCount(pDevices, &count); MP_VERBOSE(ao, "Finding device %s\n", devid); IMMDevice *prevDevice = NULL; for (int i = 0; i < count; i++) { hr = IMMDeviceCollection_Item(pDevices, i, &pTempDevice); EXIT_ON_ERROR(hr); if (device_id_match(get_device_id(pTempDevice), devid)) { hr = IMMDevice_GetId(pTempDevice, &deviceID); EXIT_ON_ERROR(hr); break; } char *desc = get_device_desc(pTempDevice); if (strstr(desc, devid)) { if (deviceID) { char *name; if (!search_err) { MP_ERR(ao, "Multiple matching devices found\n"); name = get_device_name(prevDevice); MP_ERR(ao, "%s\n", name); talloc_free(name); search_err = 1; } name = get_device_name(pTempDevice); MP_ERR(ao, "%s\n", name); talloc_free(name); } hr = IMMDevice_GetId(pTempDevice, &deviceID); prevDevice = pTempDevice; } talloc_free(desc); SAFE_RELEASE(pTempDevice, IMMDevice_Release(pTempDevice)); } if (deviceID == NULL) MP_ERR(ao, "Could not find device %s\n", devid); } SAFE_RELEASE(pTempDevice, IMMDevice_Release(pTempDevice)); SAFE_RELEASE(pDevices, IMMDeviceCollection_Release(pDevices)); if (deviceID == NULL || search_err) { hr = E_NOTFOUND; } else { MP_VERBOSE(ao, "Loading device %S\n", deviceID); hr = IMMDeviceEnumerator_GetDevice(pEnumerator, deviceID, ppDevice); if (FAILED(hr)) MP_ERR(ao, "Could not load requested device\n"); } exit_label: SAFE_RELEASE(pTempDevice, IMMDevice_Release(pTempDevice)); SAFE_RELEASE(pDevices, IMMDeviceCollection_Release(pDevices)); CoTaskMemFree(deviceID); return hr; } HRESULT wasapi_setup_proxies(struct wasapi_state *state) { HRESULT hr; #define UNMARSHAL(type, to, from) do { \ hr = CoGetInterfaceAndReleaseStream((from), &(type), (void **)&(to)); \ (from) = NULL; \ EXIT_ON_ERROR(hr); \ } while (0) UNMARSHAL(IID_ISimpleAudioVolume, state->pAudioVolumeProxy, state->sAudioVolume); UNMARSHAL(IID_IAudioEndpointVolume, state->pEndpointVolumeProxy, state->sEndpointVolume); UNMARSHAL(IID_IAudioSessionControl, state->pSessionControlProxy, state->sSessionControl); #undef UNMARSHAL return S_OK; exit_label: MP_ERR(state, "Error reading COM proxy: %s\n", mp_HRESULT_to_str(hr)); return hr; } void wasapi_release_proxies(wasapi_state *state) { SAFE_RELEASE(state->pAudioVolumeProxy, IUnknown_Release(state->pAudioVolumeProxy)); SAFE_RELEASE(state->pEndpointVolumeProxy, IUnknown_Release(state->pEndpointVolumeProxy)); SAFE_RELEASE(state->pSessionControlProxy, IUnknown_Release(state->pSessionControlProxy)); } static HRESULT create_proxies(struct wasapi_state *state) { HRESULT hr; #define MARSHAL(type, to, from) do { \ hr = CreateStreamOnHGlobal(NULL, TRUE, &(to)); \ EXIT_ON_ERROR(hr); \ hr = CoMarshalInterThreadInterfaceInStream(&(type), \ (IUnknown *)(from), \ &(to)); \ EXIT_ON_ERROR(hr); \ } while (0) MARSHAL(IID_ISimpleAudioVolume, state->sAudioVolume, state->pAudioVolume); MARSHAL(IID_IAudioEndpointVolume, state->sEndpointVolume, state->pEndpointVolume); MARSHAL(IID_IAudioSessionControl, state->sSessionControl, state->pSessionControl); return S_OK; exit_label: MP_ERR(state, "Error creating COM proxy: %s\n", mp_HRESULT_to_str(hr)); return hr; } static void destroy_proxies(struct wasapi_state *state) { SAFE_RELEASE(state->sAudioVolume, IUnknown_Release(state->sAudioVolume)); SAFE_RELEASE(state->sEndpointVolume, IUnknown_Release(state->sEndpointVolume)); SAFE_RELEASE(state->sSessionControl, IUnknown_Release(state->sSessionControl)); } void wasapi_dispatch(struct ao *ao) { MP_DBG(ao, "Dispatch\n"); /* dispatch any possible pending messages */ MSG msg; while (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE)) DispatchMessage(&msg); } HRESULT wasapi_thread_init(struct ao *ao) { struct wasapi_state *state = ao->priv; MP_DBG(ao, "Init wasapi thread\n"); int64_t retry_wait = 1; retry: state->initial_volume = -1.0; HRESULT hr = CoCreateInstance(&CLSID_MMDeviceEnumerator, NULL, CLSCTX_ALL, &IID_IMMDeviceEnumerator, (void **)&state->pEnumerator); EXIT_ON_ERROR(hr); char *device = state->opt_device; if (!device || !device[0]) device = ao->device; if (!device || !device[0]) { hr = load_default_device(ao, state->pEnumerator, &state->pDevice); } else { hr = find_and_load_device(ao, state->pEnumerator, &state->pDevice, device); } EXIT_ON_ERROR(hr); char *name = get_device_name(state->pDevice); MP_VERBOSE(ao, "Device loaded: %s\n", name); talloc_free(name); MP_DBG(ao, "Activating pAudioClient interface\n"); hr = IMMDeviceActivator_Activate(state->pDevice, &IID_IAudioClient, CLSCTX_ALL, NULL, (void **)&state->pAudioClient); EXIT_ON_ERROR(hr); MP_DBG(ao, "Activating pEndpointVolume interface\n"); hr = IMMDeviceActivator_Activate(state->pDevice, &IID_IAudioEndpointVolume, CLSCTX_ALL, NULL, (void **)&state->pEndpointVolume); EXIT_ON_ERROR(hr); MP_DBG(ao, "Query hardware volume support\n"); hr = IAudioEndpointVolume_QueryHardwareSupport(state->pEndpointVolume, &state->vol_hw_support); if (hr != S_OK) { MP_WARN(ao, "Error querying hardware volume control: %s\n", mp_HRESULT_to_str(hr)); } MP_DBG(ao, "Probing formats\n"); if (!find_formats(ao)) { hr = E_FAIL; EXIT_ON_ERROR(hr); } MP_DBG(ao, "Fixing format\n"); hr = fix_format(ao); if ((hr == AUDCLNT_E_DEVICE_IN_USE || hr == AUDCLNT_E_DEVICE_INVALIDATED) && retry_wait <= 8) { wasapi_thread_uninit(ao); MP_WARN(ao, "Retrying in %"PRId64" us\n", retry_wait); mp_sleep_us(retry_wait); retry_wait *= 2; goto retry; } EXIT_ON_ERROR(hr); MP_DBG(ao, "Creating proxies\n"); hr = create_proxies(state); EXIT_ON_ERROR(hr); MP_DBG(ao, "Read volume levels\n"); if (state->opt_exclusive) { IAudioEndpointVolume_GetMasterVolumeLevelScalar(state->pEndpointVolume, &state->initial_volume); } else { ISimpleAudioVolume_GetMasterVolume(state->pAudioVolume, &state->initial_volume); } state->previous_volume = state->initial_volume; wasapi_change_init(ao, false); MP_DBG(ao, "Init wasapi thread done\n"); return S_OK; exit_label: MP_ERR(state, "Error setting up audio thread: %s\n", mp_HRESULT_to_str(hr)); return hr; } void wasapi_thread_uninit(struct ao *ao) { struct wasapi_state *state = ao->priv; MP_DBG(ao, "Thread shutdown\n"); wasapi_dispatch(ao); if (state->pAudioClient) IAudioClient_Stop(state->pAudioClient); wasapi_change_uninit(ao); if (state->opt_exclusive && state->pEndpointVolume && state->initial_volume > 0 ) { IAudioEndpointVolume_SetMasterVolumeLevelScalar(state->pEndpointVolume, state->initial_volume, NULL); } destroy_proxies(state); SAFE_RELEASE(state->pRenderClient, IAudioRenderClient_Release(state->pRenderClient)); SAFE_RELEASE(state->pAudioClock, IAudioClock_Release(state->pAudioClock)); SAFE_RELEASE(state->pAudioVolume, ISimpleAudioVolume_Release(state->pAudioVolume)); SAFE_RELEASE(state->pEndpointVolume, IAudioEndpointVolume_Release(state->pEndpointVolume)); SAFE_RELEASE(state->pSessionControl, IAudioSessionControl_Release(state->pSessionControl)); SAFE_RELEASE(state->pAudioClient, IAudioClient_Release(state->pAudioClient)); SAFE_RELEASE(state->pDevice, IMMDevice_Release(state->pDevice)); SAFE_RELEASE(state->pEnumerator, IMMDeviceEnumerator_Release(state->pEnumerator)); if (state->hTask) state->VistaBlob.pAvRevertMmThreadCharacteristics(state->hTask); MP_DBG(ao, "Thread uninit done\n"); }