[FFmpeg-devel] [PATCH] wtv: ignore empty data_guid chunks

[Ronald S. Bultje]

Hi,

On Sat, Feb 12, 2011 at 10:42 PM, Peter Ross <pross at xvid.org> wrote:
> ---
> ?libavformat/wtv.c | ? ?2 +-
> ?1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/libavformat/wtv.c b/libavformat/wtv.c
> index 7a8e8f5..b74a36c 100644
> --- a/libavformat/wtv.c
> +++ b/libavformat/wtv.c
> @@ -892,7 +892,7 @@ static int parse_chunks(AVFormatContext *s, int mode, int64_t seekts, int *len_p
> ? ? ? ? ? ? }
> ? ? ? ? } else if (!ff_guidcmp(g, data_guid)) {
> ? ? ? ? ? ? int stream_index = ff_find_stream_index(s, sid);
> - ? ? ? ? ? ?if (mode == SEEK_TO_DATA && stream_index >= 0) {
> + ? ? ? ? ? ?if (mode == SEEK_TO_DATA && stream_index >= 0 && len > 32) {
> ? ? ? ? ? ? ? ? WtvStream *wst = s->streams[stream_index]->priv_data;
> ? ? ? ? ? ? ? ? wst->seen_data = 1;
> ? ? ? ? ? ? ? ? if (len_ptr) {
> --
> 1.7.1

Does this prevent a crash, or do empty data chunks actually occur?
Either way, queued.

Ronald