return -1;
}
+ if (!avctx->extradata) {
+ av_log(avctx, AV_LOG_ERROR, "extradata missing\n");
+ return AVERROR_INVALIDDATA;
+ }
+
avctx->pix_fmt = PIX_FMT_PAL8;
avcodec_get_frame_defaults(&s->frame);
if (s->frame.data[0])
avctx->release_buffer(avctx, &s->frame);
+ if (avpkt->size < 4 + 3*s->num_pal_colors) {
+ av_log(avctx, AV_LOG_ERROR, "packet of size %d too small\n", avpkt->size);
+ return AVERROR_INVALIDDATA;
+ }
+
ret = avctx->get_buffer(avctx, &s->frame);
if (ret < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
s->low_nibble = NULL;
is_odd_frame = avpkt->data[0];
+ if(is_odd_frame>1){
+ av_log(avctx, AV_LOG_ERROR, "frame is too odd %d\n", is_odd_frame);
+ return AVERROR_INVALIDDATA;
+ }
firstcolor = s->first_color[is_odd_frame];
palette = (uint32_t *)s->frame.data[1];