avfilter/vf_fps: make sure the fifo is not empty before using it

Fixes Ticket2905

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit cdd5df8189)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-09-02 04:32:23 +02:00
parent 54bdb5fc86
commit db99c41567

View File

@ -189,7 +189,7 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *buf)
}
/* now wait for the next timestamp */
if (buf->pts == AV_NOPTS_VALUE) {
if (buf->pts == AV_NOPTS_VALUE || av_fifo_size(s->fifo) <= 0) {
return write_to_fifo(s->fifo, buf);
}