@@ -78,6 +78,7 @@ unsigned av_buffersrc_get_nb_failed_requests(AVFilterContext *buffer_src);

  * This function is equivalent to av_buffersrc_add_frame_flags() with the

  * AV_BUFFERSRC_FLAG_KEEP_REF flag.

  */

+av_warn_unused_result

 int av_buffersrc_write_frame(AVFilterContext *ctx, const AVFrame *frame);

 /**

@@ -98,6 +99,7 @@ int av_buffersrc_write_frame(AVFilterContext *ctx, const AVFrame *frame);

  * This function is equivalent to av_buffersrc_add_frame_flags() without the

  * AV_BUFFERSRC_FLAG_KEEP_REF flag.

  */

+av_warn_unused_result

 int av_buffersrc_add_frame(AVFilterContext *ctx, AVFrame *frame);

 /**

@@ -115,6 +117,7 @@ int av_buffersrc_add_frame(AVFilterContext *ctx, AVFrame *frame);

  * @return            >= 0 in case of success, a negative AVERROR code

  *                    in case of failure

  */

+av_warn_unused_result

 int av_buffersrc_add_frame_flags(AVFilterContext *buffer_src,

                                  AVFrame *frame, int flags);