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buffersrc: fix invalid read in uninit if the fifo hasn't been allocated

This commit is contained in:
Anton Khirnov 2012-05-06 07:14:01 +02:00
parent fad729fa50
commit 8b05e13df3

View File

@ -137,7 +137,7 @@ static av_cold int init(AVFilterContext *ctx, const char *args, void *opaque)
static av_cold void uninit(AVFilterContext *ctx)
{
BufferSourceContext *s = ctx->priv;
while (av_fifo_size(s->fifo)) {
while (s->fifo && av_fifo_size(s->fifo)) {
AVFilterBufferRef *buf;
av_fifo_generic_read(s->fifo, &buf, sizeof(buf), NULL);
avfilter_unref_buffer(buf);