From 46778ab212e25f28a942628b4f9f959c59d2ad26 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Mon, 27 Apr 2015 04:52:01 +0200 Subject: [PATCH] avformat/aviobuf: Do not resize the buffer in ffio_ensure_seekback() if there is no read function Without a read function there can never be more data read than the buffer could hold Signed-off-by: Michael Niedermayer --- libavformat/aviobuf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavformat/aviobuf.c b/libavformat/aviobuf.c index 7de59f10f3..333c75ce66 100644 --- a/libavformat/aviobuf.c +++ b/libavformat/aviobuf.c @@ -805,7 +805,7 @@ int ffio_ensure_seekback(AVIOContext *s, int64_t buf_size) buf_size += s->buf_ptr - s->buffer + max_buffer_size; - if (buf_size < filled || s->seekable) + if (buf_size < filled || s->seekable || !s->read_packet) return 0; av_assert0(!s->write_flag);