+ if(s-> in_sample_rate <= 0){
+ av_log(s, AV_LOG_ERROR, "Requested input sample rate %d is invalid\n", s->in_sample_rate);
+ return AVERROR(EINVAL);
+ }
+ if(s->out_sample_rate <= 0){
+ av_log(s, AV_LOG_ERROR, "Requested output sample rate %d is invalid\n", s->out_sample_rate);
+ return AVERROR(EINVAL);
+ }