videoio: av_frame_unref compilation fix

mshabunin · mshabunin · commit 137ec1c84670 · 2021-03-02T14:20:24.000+03:00
diff --git a/modules/videoio/src/cap_ffmpeg_impl.hpp b/modules/videoio/src/cap_ffmpeg_impl.hpp
@@ -1469,9 +1469,12 @@ bool CvCapture_FFMPEG::retrieveFrame(int, unsigned char** data, int* step, int*
     *height = frame.height;
     *cn = frame.cn;
 
-    if (sw_picture != picture) {
+#if USE_AV_HW_CODECS
+    if (sw_picture != picture)
+    {
         av_frame_unref(sw_picture);
     }
+#endif
     return true;
 }
 

Original file line number	Diff line number	Diff line change
`@@ -1469,9 +1469,12 @@ bool CvCapture_FFMPEG::retrieveFrame(int, unsigned char** data, int* step, int*`
`1469`	`1469`	`*height = frame.height;`
`1470`	`1470`	`*cn = frame.cn;`
`1471`	`1471`
`1472`		`- if (sw_picture != picture) {`
	`1472`	`+#if USE_AV_HW_CODECS`
	`1473`	`+ if (sw_picture != picture)`
	`1474`	`+ {`
`1473`	`1475`	`av_frame_unref(sw_picture);`
`1474`	`1476`	`}`
	`1477`	`+#endif`
`1475`	`1478`	`return true;`
`1476`	`1479`	`}`
`1477`	`1480`