comparison sv/videoio/SDL_ffmpeg.cpp @ 169:269562a2b89c

- be sure we create a picture multiple of 4 when resizing,
- change interpolation from BI_CUBIC to FAST_BILINEAR to imporove speed.

                 // if new timestamp is from future, we proceed
 			//	if(buf->timestamp >= SDL_ffmpegGetPosition(file)) 
 			//	{
 				int w=(int)(zoomFivan*320+0.5);
 				int h=(int)(zoomFivan*240+0.5);
-				
 				if ((w>file->vs[file->videoStream]->width)||(h>file->vs[file->videoStream]->height)){
 					w=file->vs[file->videoStream]->width;
 					h=file->vs[file->videoStream]->height;
 				}
+				// Be sure we have a multiple of 4
+				w &= 0xFFFFFFFC;
+				h &= 0xFFFFFFFC;
 				if (img_convert_ctx == NULL) {
+
 							img_convert_ctx = sws_getContext(file->vs[file->videoStream]->width, file->vs[file->videoStream]->height,
                                                  ((AVCodecContext*)file->vs[file->videoStream]->_ffmpeg)->pix_fmt,
                                                  w,h,
                                                  file->vs[file->videoStream]->pixFmt,
-                                                 sws_flags, NULL, NULL, NULL);
+                                                 SWS_FAST_BILINEAR, NULL, NULL, NULL);
 							if (img_convert_ctx == NULL) {
 								fprintf(stderr, "Cannot initialize the conversion context\n");
 								exit(1);
 							}
 					}