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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>
This commit is contained in:
Ganesh Ajjanagadde 2015-10-15 21:44:22 -04:00
parent 02daf2b360
commit cd8a0a9a9a
1 changed files with 1 additions and 0 deletions
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libswscale/swscale.h
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@ -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);
/**