1.modify audio channel list of sdk support values 2.add check ndi audio buffer size

MomentaMedia/include/NDI/NDIOutputThread.h

@@ -58,6 +58,7 @@ private:
 	NDIlib_send_instance_t Instance;
 	NDIlib_video_frame_v2_t Frame;
 	NDIlib_audio_frame_v3_t AudioFrame;
+	uint32_t audio_size{0};
 
 	std::shared_ptr<AudioConvert> AudioCvtPtr;
 	std::thread audio_thread;

MomentaMedia/src/MomentaMedia.cpp

@@ -32,7 +32,7 @@ bool HaveBlackDataFlag = true;
 
 int main_ver = 2;
 int mid_ver = 0;
-int small_ver = 4;
+int small_ver = 5;
 bool scale_enable = true;
 std::atomic_bool bk_flag = false;
 
@@ -40,7 +40,7 @@ cv::Mat bk_mat;
 
 namespace
 {
-    const std::vector<QString> AudioChannels = { "1","2","3","4","5","6","7","8" };
+    const std::vector<QString> AudioChannels = { "2","8","16","32","64"};
 }
 
 MomentaMedia::MomentaMedia(QWidget *parent)
@@ -133,12 +133,14 @@ MomentaMedia::MomentaMedia(QWidget *parent)
 
     //OutputModeCheck->setChecked(mode);
 
-    
-    for(auto channel : AudioChannels)
-    { 
-        AudioChannelCombo->addItem(channel);
+    int ch_index = 0;
+    for(int i = 0; i < AudioChannels.size();i++)
+    {
+        auto str = AudioChannels[i];
+        if (str == QString::number(channel)) ch_index = i;
+        AudioChannelCombo->addItem(str);
     }
-    AudioChannelCombo->setCurrentIndex(channel - 1);
+    AudioChannelCombo->setCurrentIndex(ch_index);
     connect(AudioChannelCombo, QOverload<int>::of(&QComboBox::currentIndexChanged), this, &MomentaMedia::AudioChannelChanged);
     
     OutputModeCombo->addItem(QString::fromWCharArray(L"跟随输入格式"));
@@ -743,7 +745,7 @@ void MomentaMedia::ReadSettings()
     else if (BlackBottomHeight > 480) BlackBottomHeight = 480;*/
 
     AudioChannel = settings.value("AUDIO_CHANNEL").toInt();
-    if (AudioChannel <= 0 || AudioChannel > 20) AudioChannel = 2;
+    if (AudioChannel <= 0) AudioChannel = 2;
 
     //PrvwFlag = settings.value("PRVW_FLAG", "").toInt();
 

MomentaMedia/src/NDI/NDIOutputThread.cpp

@@ -11,7 +11,7 @@ extern qint64 StartTimeStamp;
 extern int AudioChannel;
 extern int FrameRate;
 
-#define SAMPLE 2400
+#define SAMPLE 9600
 #define SAMPLERATE 48000
 
 NDIOutputThread::NDIOutputThread(const QString& Name, int w, int h, qint32 deleyTime) : NDISenderName(Name), width(w), height(h), deleyTime_(deleyTime), isSending(false), Instance(nullptr), cropFlag(false), AudioCvtPtr(nullptr)
@@ -96,7 +96,8 @@ bool NDIOutputThread::Init()
 		AudioFrame.FourCC = NDIlib_FourCC_audio_type_FLTP;
 		AudioFrame.no_channels = AudioChannel;
 		AudioFrame.sample_rate = SAMPLERATE;
-		AudioFrame.p_data = (uint8_t*)malloc(AudioChannel * SAMPLE * sizeof(float));
+		audio_size = AudioChannel * SAMPLE * sizeof(float);
+		AudioFrame.p_data = (uint8_t*)malloc(audio_size);
 
 		AudioCvtPtr = std::make_shared<AudioConvert>(AudioFrame.no_channels, bmdAudioSampleType32bitInteger);
 	}
@@ -116,6 +117,13 @@ void NDIOutputThread::SendAudioFunc()
 			auto audio_tm = frame->frame_time_stamp;
 			auto dst_data =AudioFrame.p_data;
 			
+			if (audio_size < size)
+			{
+				if (AudioFrame.p_data) free(AudioFrame.p_data);
+				audio_size = size;
+				AudioFrame.p_data = (uint8_t*)malloc(audio_size);
+			}
+
 			if (AudioCvtPtr)
 			{
 				AudioCvtPtr->SetParams(frame->channel, bmdAudioSampleType32bitInteger);

x64/Release/settings.ini

@@ -4,7 +4,7 @@ FRAME_RATE=50
 PRVW_FLAG=0
 OUTPUT_PLAY_MODE=0
 BLACK_BOTTOM_HEIGHT=0
-AUDIO_CHANNEL=1
+AUDIO_CHANNEL=8
 ASPEC_DEN=9
 ASPEC_NUM=16
 SCALE_MODE=0