First ,read 1920x1080 jpg and decodeToFd ,NvBufferTransform to NvBufferColorFormat_YUV420 ;
On R32,5.0,test NvBufferTransform 1920x1080 yuv420 -->1920x1080 yuv40 cost 8ms;
On R32,2.3,test NvBufferTransform 1920x1080 yuv420 -->1920x1080 yuv40 cost 3ms;
3ms and 8ms is so poor,how can i transform fast ?
just copy and transform,how can i use NvBufferTransform to get good performance ?
this is my test code:
int CreateBufFD()
{
int i;
NvBufferCreateParams input_params = {0};
input_params.payloadType = NvBufferPayload_SurfArray;
input_params.width = OSD_WIDTH;
input_params.height = OSD_HEIGHT;
input_params.layout = NvBufferLayout_Pitch;
input_params.nvbuf_tag = NvBufferTag_VIDEO_CONVERT;
input_params.colorFormat = NvBufferColorFormat_YUV420;
//input_params.colorFormat = NvBufferColorFormat_ABGR32;
for(i=0;i<NUM_BUFFS;i++)
{
if (NvBufferCreateEx(&buf_fd[i], &input_params) == -1)
{
plog(m_nChannel, “Failed to create DrmRender tmp NvBuffer”);
return -1;
}
plog(m_nChannel, “###create DrmRender tmp NvBuffer[%d-%d]”,i,buf_fd[i]);
}
return 0;
}
bool Transform(int srcfd, int index)
{
NvBufferTransformParams transform_params={0};
transform_params.transform_flag = NVBUFFER_TRANSFORM_FILTER;
transform_params.transform_flip = NvBufferTransform_None;
transform_params.transform_filter = NvBufferTransform_Filter_Smart;
transform_params.src_rect.top = 0;
transform_params.src_rect.left = 0;
transform_params.src_rect.width = OSD_WIDTH;
transform_params.src_rect.height = OSD_HEIGHT;
transform_params.dst_rect.top = 0;
transform_params.dst_rect.left = 0;
transform_params.dst_rect.width = OSD_WIDTH;
transform_params.dst_rect.height = OSD_HEIGHT;
/* convert frame from UYVY to RGBA, and overlay text */
/* UYVY --> ARGB32 */
if (NvBufferTransform(srcfd, buf_fd[index], &transform_params) < 0)
{
plog(m_nChannel, "NvBufferTransform() UYVY --> ARGB32 fail!");
return false;
}
return true;
}
int main(int argc, char * argv)
{
GMainLoop *main_loop = g_main_loop_new(NULL, FALSE);
int count=0;
int index;
int nRet;
struct timeval tv1, tv2;
uint32_t diff=0;
if(!createfd())
{
plog(0,“Enter CreateFD failed”);
return 0;
}
if(CreateBufFD()!=0)
{
plog(0,“CreateBufFD failed”);
return 0;
}
while(1)
{
index=count++%NUM_BUFFS;
gettimeofday(&tv1, NULL);
Transform(m_nNoSignalFD,index);
gettimeofday(&tv2, NULL);
diff+=get_time_diff_ms(&tv1, &tv2);
if(count%5==0)
{
plog(0,“cost:%f,count:%d”,diff/5.0,count);
diff=0;
}
sleep(1);
}
g_main_loop_run(main_loop);
//g_main_loop_quit(loop);
plog(0, "main() exit! " );
return 0;
}
