swscale/swscale: add av_warn_unused_result to sws_init_context

This should not trigger any warnings; but adds robustness. Reviewed-by: Michael Niedermayer <michael@niedermayer.cc> Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
10 years ago · cd8a0a9a9a
parent 02daf2b360
commit cd8a0a9a9a
1 changed files with 1 additions and 0 deletions
--- a/libswscale/swscale.h
+++ b/libswscale/swscale.h
@ -150,6 +150,7 @@ struct SwsContext *sws_alloc_context(void);
 * @return zero or positive value on success, a negative value on
 * error
 */
+av_warn_unused_result
 int sws_init_context(struct SwsContext *sws_context, SwsFilter *srcFilter, SwsFilter *dstFilter);

 /**