tskvideoinput1.c

ZPAV (H265) DM64XX(TI) demo ZPAV (H265) 是 音视频 压缩解压 协议

/*
///////////////////////////////////////////////////////////////////////////////
//                                                                           //
//   Copyright (C) 2006-2008  Beijing,  pengzhen  ([e-mail])  //
//                                                                           //
///////////////////////////////////////////////////////////////////////////////
*/

#include "tskVideoInput0.c"

void tskVideoInput()
{

	//LCK_Handle m_hViInMutex = LCK_create( NULL ) ; /* Mutex */
	
	FVID_Frame *capFrameBuf; 
	
	FVID_alloc(m_hVi, &capFrameBuf);

	while(1)
    {

		/* acquire Semaphore */
		//SemPend( m_hViInSem , SYS_FOREVER ) ;

        /* acquire Mutex */
		//LCK_pend( m_hViInMutex, SYS_FOREVER ) ; 

		/* Yuv420 */
		if( image_height > (image_max_height>>1) ) /* D1 */
		{
			m_dvp_de_interlace( m_Yuv420_In->m_pBuf_y, image_width, 
				                capFrameBuf->frame.iFrm.y1, image_width, image_width, image_height ) ;

			m_dvp_de_interlace( m_Yuv420_In->m_pBuf_u, image_width>>1, 
				                capFrameBuf->frame.iFrm.cb1, image_width, image_width>>1, image_height>>1 ) ;

			m_dvp_de_interlace( m_Yuv420_In->m_pBuf_v, image_width>>1, 
				                capFrameBuf->frame.iFrm.cr1, image_width, image_width>>1, image_height>>1 ) ;

		}
		else
		{
#if 0 
			dma_copy_420_c( m_Yuv420_In, capFrameBuf, image_width, image_height ) ;
#else 
			scale_422_to_420_c( m_Yuv420_In, capFrameBuf, image_width, image_height ) ;
#endif /* 0 */
		}

		/* get next buffer */
		m_Yuv420_In = m_Yuv420_In->m_pNext ; m_Yuv420_Cnt -- ; 

		if(m_Yuv420_Cnt) SemPost( m_hViOutSem ) ; /* video encode */
		else SemPend( m_hViInSem , SYS_FOREVER ) ;  /* Vi */ /* no buffer ; wait for video encoder */ 

        //CACHE_clean(CACHE_L2ALL, 0, 0);

		/* Get a new frame from the capture driver */      
        FVID_exchange(m_hVi, &capFrameBuf);

		/*release Mutex*/
		//LCK_post( m_hViInMutex ) ;

    } /* while(1) */

	//LCK_delete( m_hViInMutex ) ;

}