diff --git a/libavfilter/buffersrc.c b/libavfilter/buffersrc.c index e0ff7e4dd8..35da02990c 100644 --- a/libavfilter/buffersrc.c +++ b/libavfilter/buffersrc.c @@ -372,6 +372,11 @@ static av_cold int init_audio(AVFilterContext *ctx) if (!(s->fifo = av_fifo_alloc(sizeof(AVFrame*)))) return AVERROR(ENOMEM); + if (s->sample_rate <= 0) { + av_log(ctx, AV_LOG_ERROR, "Sample rate not set\n"); + return AVERROR(EINVAL); + } + if (!s->time_base.num) s->time_base = (AVRational){1, s->sample_rate};