[FFmpeg-devel] [PATCH 2/3] h264: Fix recovery_frame initialization when recovery_frame is -1

[Michael Niedermayer]

Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
---
 libavcodec/h264.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/libavcodec/h264.c b/libavcodec/h264.c
index 7665021..cb5025b 100644
--- a/libavcodec/h264.c
+++ b/libavcodec/h264.c
@@ -3896,7 +3896,8 @@ static int decode_nal_units(H264Context *h, const uint8_t *buf, int buf_size){
                break;
 
             if (   h->sei_recovery_frame_cnt >= 0
-                && ((h->recovery_frame - h->frame_num) & ((1 << h->sps.log2_max_frame_num)-1)) > h->sei_recovery_frame_cnt) {
+                && (   h->recovery_frame<0
+                    || ((h->recovery_frame - h->frame_num) & ((1 << h->sps.log2_max_frame_num)-1)) > h->sei_recovery_frame_cnt)) {
                 h->recovery_frame = (h->frame_num + h->sei_recovery_frame_cnt) %
                                     (1 << h->sps.log2_max_frame_num);
             }
-- 
1.7.5.4