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GB28181Device/media/video_capture.cpp

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+/***************************************************************************************
+ *
+ *  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
+ *
+ *  By downloading, copying, installing or using the software you agree to this license.
+ *  If you do not agree to this license, do not download, install, 
+ *  copy or use the software.
+ *
+ *  Copyright (C) 2014-2022, Happytimesoft Corporation, all rights reserved.
+ *
+ *  Redistribution and use in binary forms, with or without modification, are permitted.
+ *
+ *  Unless required by applicable law or agreed to in writing, software distributed 
+ *  under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
+ *  CONDITIONS OF ANY KIND, either express or implied. See the License for the specific
+ *  language governing permissions and limitations under the License.
+ *
+****************************************************************************************/
+
+#include "sys_inc.h"
+#include "video_capture.h"
+#include "media_format.h"
+#include "lock.h"
+
+/**************************************************************************************/
+
+CVideoCapture * CVideoCapture::m_pInstance[] = {NULL, NULL, NULL, NULL};
+void * CVideoCapture::m_pInstMutex = sys_os_create_mutex();
+
+/**************************************************************************************/
+
+void VideoDecodeCb(AVFrame * frame, void *pUserdata)
+{
+    CVideoCapture *capture = (CVideoCapture *)pUserdata;
+
+	capture->videoDecodeCb(frame);
+}
+
+/**************************************************************************************/
+
+CVideoCapture::CVideoCapture(void)
+{
+	m_nDevIndex = 0;	
+	m_nWidth = 640;
+	m_nHeight = 480;
+	m_nFramerate = 15;
+	m_nBitrate = 0;
+	m_nVideoFormat = VIDEO_FMT_NONE;
+	m_bDecode = FALSE;
+	m_bEncode = FALSE;
+
+	m_pMutex = sys_os_create_mutex();
+	
+	m_bInited = FALSE;
+	m_bCapture = FALSE;
+	m_hCapture = 0;
+	
+	m_nRefCnt = 0;
+}
+
+CVideoCapture::~CVideoCapture(void)
+{
+    sys_os_destroy_sig_mutex(m_pMutex);
+}
+
+CVideoCapture * CVideoCapture::getInstance(int devid)
+{
+	return NULL;
+}
+
+void CVideoCapture::freeInstance(int devid)
+{
+	if (devid < 0 || devid >= MAX_VIDEO_DEV_NUMS)
+	{
+		return;
+	}
+	
+	if (m_pInstance[devid])
+	{
+	    sys_os_mutex_enter(m_pInstMutex);
+
+	    if (m_pInstance[devid])
+	    {
+    		m_pInstance[devid]->m_nRefCnt--;
+
+    		if (m_pInstance[devid]->m_nRefCnt <= 0)
+    		{
+    			delete m_pInstance[devid];
+    			m_pInstance[devid] = NULL;
+    		}
+		}
+
+		sys_os_mutex_leave(m_pInstMutex);
+	}
+}
+
+int CVideoCapture::getDeviceNums()
+{
+	return 0;
+}
+
+char * CVideoCapture::getAuxSDPLine(int rtp_pt)
+{
+	return m_encoder.getAuxSDPLine(rtp_pt);
+}
+
+void CVideoCapture::setCodecFlag(int codec)
+{
+    if (VIDEO_FMT_MJPG == m_nVideoFormat)
+    {
+        if (VIDEO_CODEC_JPEG == codec)
+        {
+            m_bDecode = FALSE;
+            m_bEncode = FALSE;
+        }
+        else
+        {
+            m_bDecode = TRUE;
+            m_bEncode = TRUE;
+        }
+    }
+    else if (VIDEO_FMT_NONE != m_nVideoFormat)
+    {
+        m_bDecode = FALSE;
+        m_bEncode = TRUE;
+    }
+}
+
+int CVideoCapture::getVideoCodec(int video_foramt)
+{
+    if (VIDEO_FMT_MJPG == video_foramt)
+    {
+        return VIDEO_CODEC_JPEG;
+    }
+    else
+    {
+        return VIDEO_CODEC_NONE;
+    }
+}
+
+void CVideoCapture::videoDecodeCb(AVFrame * frame)
+{
+    if (m_bEncode)
+    {
+#ifdef ANDROID    
+#else
+        m_encoder.encode(frame);
+#endif
+    }
+}
+
+BOOL CVideoCapture::initCapture(int codec, int width, int height, double framerate, int bitrate)
+{
+	return FALSE;
+}
+
+BOOL CVideoCapture::capture()
+{
+	return FALSE;
+}
+
+BOOL CVideoCapture::startCapture()
+{
+	return FALSE;
+}
+
+void CVideoCapture::stopCapture()
+{
+}
+
+void CVideoCapture::addCallback(VideoDataCallback pCallback, void * pUserdata)
+{
+	m_encoder.addCallback(pCallback, pUserdata);
+}
+
+void CVideoCapture::delCallback(VideoDataCallback pCallback, void * pUserdata)
+{
+	m_encoder.delCallback(pCallback, pUserdata);
+}
+
+
+
+