diff options
| -rw-r--r-- | libavcodec/h264_sei.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/libavcodec/h264_sei.c b/libavcodec/h264_sei.c index 33230b7dfa..52ff2ff4bb 100644 --- a/libavcodec/h264_sei.c +++ b/libavcodec/h264_sei.c @@ -222,14 +222,20 @@ int ff_h264_decode_sei(H264Context *h) int size = 0; int type = 0; int ret = 0; + int last = 0; - do - type += show_bits(&h->gb, 8); - while (get_bits(&h->gb, 8) == 255); + while (get_bits_left(&h->gb) >= 8 && + (last = get_bits(&h->gb, 8)) == 255) { + type += 255; + } + type += last; - do - size += show_bits(&h->gb, 8); - while (get_bits(&h->gb, 8) == 255); + last = 0; + while (get_bits_left(&h->gb) >= 8 && + (last = get_bits(&h->gb, 8)) == 255) { + size += 255; + } + size += last; if (size > get_bits_left(&h->gb) / 8) { av_log(h->avctx, AV_LOG_ERROR, "SEI type %d truncated at %d\n", |