int main(void)
{
int result;
call_fun(add, &result, 3, 2); /* 最终调用了 add(&result, 3, 2) */
printf("result = %d\n", result);
call_fun(sub, &result, 3, 2); /* 最终调用了 sub(&result, 3, 2) */
printf("result = %d\n", result);
return 0;
}
inline int overload_rep::call(lua_State* L, bool force_static_call) const
{
if (force_static_call)
return call_fun_static(L);
else
return call_fun(L);
}
/***************************************************
*int decode_main_frame(uint8_t *data, int size)
* 解码处理主函数
***************************************************
*/
int QDecodeStream::decode_main_frame(uint8_t *data, int size)
/*
* data: 待解码数据
* size: 数据大小
*/
{
int got_picture=0;
int iRet;
AVPicture pFrameRGB;
av_init_packet(&decode_h264.avp);
decode_h264.avp.data=data;
decode_h264.avp.size=size;
iRet = avcodec_decode_video2(decode_h264.codecCtx, \
decode_h264.frame, \
&got_picture, \
&decode_h264.avp);
#if 1
if((first == 0) &&(got_picture))
{
decode_h264.img_convert_ctx = sws_getContext(decode_h264.codecCtx->width, \
decode_h264.codecCtx->height, \
decode_h264.codecCtx->pix_fmt, \
play_win->image.width, \
play_win->image.height, \
AV_PIX_FMT_RGB24, \
SWS_BICUBIC, /* AV_PIX_FMT_RGB24 SWS_BICUBIC AV_PIX_FMT_YUV420P */ \
NULL, NULL, NULL);
if(decode_h264.img_convert_ctx == NULL)
return -1;
first = 1;
}
if((got_picture) && (first == 1))
{
avpicture_fill(&pFrameRGB,
one_frame_buffer, // *play_win->image.buffer, //decode_h264.frame_buffer,
AV_PIX_FMT_RGB24,
play_win->image.width,
play_win->image.height);
sws_scale(decode_h264.img_convert_ctx,
decode_h264.frame->data,
decode_h264.frame->linesize,
0 ,
decode_h264.codecCtx->height,
pFrameRGB.data,
pFrameRGB.linesize);
call_fun((char *)one_frame_buffer);
}
else
printf("lost frame\n");
#endif
return got_picture;
}
result_type operator()(CArgs && ... cargs)
{
return call_fun(call_type(), typename gen<f_traits::parameter_count>::type(), std::forward<CArgs>(cargs)...);
}