f->ac = get_symbol(c, state, 0);
if (f->ac == AC_RANGE_CUSTOM_TAB) {
- for (i = 1; i < 256; i++)
- f->state_transition[i] = get_symbol(c, state, 1) + c->one_state[i];
+ for (i = 1; i < 256; i++) {
+ int st = get_symbol(c, state, 1) + c->one_state[i];
+ if (st < 1 || st > 255) {
+ av_log(f->avctx, AV_LOG_ERROR, "invalid state transition %d\n", st);
+ return AVERROR_INVALIDDATA;
+ }
+ f->state_transition[i] = st;
+ }
}
colorspace = get_symbol(c, state, 0); //YUV cs type
unsigned crc = av_crc(av_crc_get_table(AV_CRC_32_IEEE), 0, buf_p, v);
if (crc) {
int64_t ts = avpkt->pts != AV_NOPTS_VALUE ? avpkt->pts : avpkt->dts;
- av_log(f->avctx, AV_LOG_ERROR, "CRC mismatch %X!", crc);
+ av_log(f->avctx, AV_LOG_ERROR, "slice CRC mismatch %X!", crc);
if (ts != AV_NOPTS_VALUE && avctx->pkt_timebase.num) {
av_log(f->avctx, AV_LOG_ERROR, "at %f seconds\n", ts*av_q2d(avctx->pkt_timebase));
} else if (ts != AV_NOPTS_VALUE) {