static inline int available_samples(AVFrame *out)
{
+ int samples;
int bytes_per_sample = av_get_bytes_per_sample(out->format);
- int samples = out->linesize[0] / bytes_per_sample;
+ if (!bytes_per_sample)
+ return AVERROR(EINVAL);
+ samples = out->linesize[0] / bytes_per_sample;
if (av_sample_fmt_is_planar(out->format)) {
return samples;
} else {