static void thread_feed(struct ao *ao) { struct wasapi_state *state = ao->priv; HRESULT hr; UINT32 frame_count = state->bufferFrameCount; if (state->share_mode == AUDCLNT_SHAREMODE_SHARED) { UINT32 padding = 0; hr = IAudioClient_GetCurrentPadding(state->pAudioClient, &padding); EXIT_ON_ERROR(hr); frame_count -= padding; MP_TRACE(ao, "Frame to fill: %"PRIu32". Padding: %"PRIu32"\n", frame_count, padding); } double delay_us; hr = get_device_delay(state, &delay_us); EXIT_ON_ERROR(hr); // add the buffer delay delay_us += frame_count * 1e6 / state->format.Format.nSamplesPerSec; BYTE *pData; hr = IAudioRenderClient_GetBuffer(state->pRenderClient, frame_count, &pData); EXIT_ON_ERROR(hr); BYTE *data[1] = {pData}; ao_read_data(ao, (void **)data, frame_count, mp_time_us() + (int64_t)llrint(delay_us)); // note, we can't use ao_read_data return value here since we already // commited to frame_count above in the GetBuffer call hr = IAudioRenderClient_ReleaseBuffer(state->pRenderClient, frame_count, 0); EXIT_ON_ERROR(hr); atomic_fetch_add(&state->sample_count, frame_count); return; exit_label: MP_ERR(state, "Error feeding audio: %s\n", mp_HRESULT_to_str(hr)); MP_VERBOSE(ao, "Requesting ao reload\n"); ao_request_reload(ao); return; }
static void thread_feed(struct ao *ao) { struct wasapi_state *state = (struct wasapi_state *)ao->priv; HRESULT hr; UINT32 frame_count = state->bufferFrameCount; if (state->share_mode == AUDCLNT_SHAREMODE_SHARED) { UINT32 padding = 0; hr = IAudioClient_GetCurrentPadding(state->pAudioClient, &padding); EXIT_ON_ERROR(hr); frame_count -= padding; } BYTE *pData; hr = IAudioRenderClient_GetBuffer(state->pRenderClient, frame_count, &pData); EXIT_ON_ERROR(hr); BYTE *data[1] = {pData}; ao_read_data(ao, (void**)data, frame_count, (int64_t) ( mp_time_us() + get_device_delay(state) * 1e6 + frame_count * 1e6 / state->format.Format.nSamplesPerSec)); hr = IAudioRenderClient_ReleaseBuffer(state->pRenderClient, frame_count, 0); EXIT_ON_ERROR(hr); atomic_fetch_add(&state->sample_count, frame_count); return; exit_label: MP_ERR(state, "thread_feed fails with %"PRIx32"!\n", (uint32_t)hr); return; }