diff --git a/libswresample/swresample.c b/libswresample/swresample.c index 58096b3927..e7f61cb8ee 100644 --- a/libswresample/swresample.c +++ b/libswresample/swresample.c @@ -97,6 +97,11 @@ int swr_set_channel_mapping(struct SwrContext *s, const int *channel_map){ return 0; } +const AVClass *swr_get_class(void) +{ + return &av_class; +} + struct SwrContext *swr_alloc(void){ SwrContext *s= av_mallocz(sizeof(SwrContext)); if(s){ diff --git a/libswresample/swresample.h b/libswresample/swresample.h index 9bd5b6769d..3a54c8eed9 100644 --- a/libswresample/swresample.h +++ b/libswresample/swresample.h @@ -54,6 +54,14 @@ enum SwrDitherType { typedef struct SwrContext SwrContext; +/** + * Get the AVClass for swrContext. It can be used in combination with + * AV_OPT_SEARCH_FAKE_OBJ for examining options. + * + * @see av_opt_find(). + */ +const AVClass *swr_get_class(void); + /** * Allocate SwrContext. *