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DATV demod: audio test (1)

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This commit is contained in:
f4exb 2019-03-20 08:42:31 +01:00
parent 3d86752411
commit 4f1247301f
2 changed files with 18 additions and 6 deletions
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22
plugins/channelrx/demoddatv/datvideorender.cpp
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@ -15,6 +15,8 @@
// along with this program. If not, see <http://www.gnu.org/licenses/>. // // along with this program. If not, see <http://www.gnu.org/licenses/>. //
/////////////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////////////
#include <math.h>
extern "C" extern "C"
{ {
#include <libswresample/swresample.h> #include <libswresample/swresample.h>
@ -39,6 +41,7 @@ DATVideoRender::DATVideoRender(QWidget *parent) : TVScreen(true, parent)
m_audioFifo = nullptr; m_audioFifo = nullptr;
m_audioSWR = nullptr; m_audioSWR = nullptr;
m_audioSampleRate = 48000; m_audioSampleRate = 48000;
m_audioTestIndex = 0;
m_videoStreamIndex = -1; m_videoStreamIndex = -1;
m_audioStreamIndex = -1; m_audioStreamIndex = -1;
@ -47,6 +50,12 @@ DATVideoRender::DATVideoRender(QWidget *parent) : TVScreen(true, parent)
m_frame = nullptr; m_frame = nullptr;
m_frameCount = -1; m_frameCount = -1;
for (int i = 0; i < 512; i++)
{
m_audioTest[2*i] = 32768.0f * sin((M_PI * i)/256.0f);
m_audioTest[2*i+1] = m_audioTest[2*i];
}
} }
bool DATVideoRender::eventFilter(QObject *obj, QEvent *event) bool DATVideoRender::eventFilter(QObject *obj, QEvent *event)
@ -556,13 +565,14 @@ bool DATVideoRender::RenderStream()
uint16_t *audioBuffer; uint16_t *audioBuffer;
av_samples_alloc((uint8_t**) &audioBuffer, nullptr, 2, m_frame->nb_samples, AV_SAMPLE_FMT_S16, 0); av_samples_alloc((uint8_t**) &audioBuffer, nullptr, 2, m_frame->nb_samples, AV_SAMPLE_FMT_S16, 0);
int frame_count = swr_convert(m_audioSWR, (uint8_t**) &audioBuffer, m_frame->nb_samples, (const uint8_t**) m_frame->data, m_frame->nb_samples); int frame_count = swr_convert(m_audioSWR, (uint8_t**) &audioBuffer, m_frame->nb_samples, (const uint8_t**) m_frame->data, m_frame->nb_samples);
int res = m_audioFifo->write((const quint8*)&m_audioBuffer[0], frame_count);
if (res != frame_count) // int res = m_audioFifo->write((const quint8*)&m_audioBuffer[0], frame_count);
{
qDebug("DATVideoRender::RenderStream: %u/%u audio samples written", res, frame_count); // if (res != frame_count)
m_audioFifo->clear(); // {
} // qDebug("DATVideoRender::RenderStream: %u/%u audio samples written", res, frame_count);
// m_audioFifo->clear();
// }
} }
} }
} }

2
plugins/channelrx/demoddatv/datvideorender.h
View File

@ -116,6 +116,8 @@ class DATVideoRender : public TVScreen
AudioFifo *m_audioFifo; AudioFifo *m_audioFifo;
struct SwrContext* m_audioSWR; struct SwrContext* m_audioSWR;
int m_audioSampleRate; int m_audioSampleRate;
uint16_t m_audioTest[1024];
int m_audioTestIndex;
uint8_t *m_pbytDecodedData[4]; uint8_t *m_pbytDecodedData[4];
int m_pintDecodedLineSize[4]; int m_pintDecodedLineSize[4];