wrapper/FFmpeg
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

avcodec/hevcdec: decode at most one slice reporting being the first in the picture

Browse source 
Fixes deadlocks when decoding packets containing more than one of the aforementioned
slices when using frame threads.

Tested-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit 70c8c8a818)
This commit is contained in:
James Almer 2019-03-18 17:25:58 -03:00
parent 77d244e7a9
commit dbef08b60f
1 changed files with 4 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

4
libavcodec/hevcdec.c
View file

@ -2924,6 +2924,10 @@ static int decode_nal_unit(HEVCContext *s, const H2645NAL *nal)
}
if (s->sh.first_slice_in_pic_flag) {
if (s->ref) {
av_log(s->avctx, AV_LOG_ERROR, "Two slices reporting being the first in the same frame.\n");
goto fail;
}
if (s->max_ra == INT_MAX) {
if (s->nal_unit_type == HEVC_NAL_CRA_NUT || IS_BLA(s)) {
s->max_ra = s->poc;