fix noise issue

src/queue/share_queue_write.cpp

@@ -140,15 +140,16 @@ bool shared_queue_push_audio(share_queue* q, uint32_t size,
 	int offset = q->header->header_size +
 		(q->header->element_size) * q->index;
 
+	q->header->write_index = q->index;
+	q->header->last_ts = video_ts;
+
 	uint8_t* buff = (uint8_t*)q->header + offset;
 	frame_header* head = (frame_header*)buff;
 	uint8_t* data = (uint8_t*)buff + q->header->element_header_size;
 	memcpy(data, src, size);
 	head->linesize[0] = size;
 	head->timestamp = timestamp;
 
-	q->header->last_ts = video_ts;
-	q->header->write_index = q->index;
 	q->index++;
 
 	if (q->index >= q->header->queue_length) {

src/virtual-output/virtual_output.cpp

@@ -114,7 +114,7 @@ static bool virtual_output_start(void *data)
 		output_running = true;
 		shared_queue_set_delay(&out_data->video_queue, out_data->delay);
 		shared_queue_set_delay(&out_data->audio_queue, out_data->delay);
-		start = obs_output_begin_data_capture(out_data->output, 0);
+
 
 		if (audio_running) {
 			struct audio_convert_info conv = {};
@@ -124,6 +124,8 @@ static bool virtual_output_start(void *data)
 			obs_output_set_audio_conversion(out_data->output, &conv);
 		}
 
+		start = obs_output_begin_data_capture(out_data->output, 0);
+
 		blog(LOG_INFO, "starting virtual-output on VirtualCam'%d'", 
 			out_data->video_mode + 1);
 

src/virtual-source/virtual-audio.cpp

@@ -90,14 +90,12 @@ HRESULT CVAudioStream::FillBuffer(IMediaSample *pms)
 	uint64_t timestamp = 0;
 	REFERENCE_TIME start_time = 0;
 	REFERENCE_TIME end_time = 0;
-	long a = 0;
 
 
 	hr = pms->GetPointer((BYTE**)&dst);
 
 	if (system_start_time <= 0) {
 		system_start_time = get_current_time();
-		a = pms->GetActualDataLength();
 	}
 	else
 		current_time = get_current_time(system_start_time);
@@ -108,6 +106,9 @@ HRESULT CVAudioStream::FillBuffer(IMediaSample *pms)
 	if (sync_timeout <= 0) {
 		SetTimeout();
 	}
+	else if(current_time < prev_end_ts)
+	{
+	}
 	else if (current_time - prev_end_ts > sync_timeout) {
 		if (queue.header)
 			share_queue_init_index(&queue);