#define ALT_BITSTREAM_READER_LE
#include "get_bits.h"
+#define BINK_FLAG_ALPHA 0x00100000
+#define BINK_FLAG_GRAY 0x00020000
+
static VLC bink_trees[16];
/**
BinkContext * const c = avctx->priv_data;
static VLC_TYPE table[16 * 128][2];
int i;
+ int flags;
c->version = avctx->codec_tag >> 24;
if (c->version < 'c') {
av_log(avctx, AV_LOG_ERROR, "Too old version '%c'\n", c->version);
return -1;
}
- c->has_alpha = 0; //TODO: demuxer should supply decoder with flags
+ if (avctx->extradata_size < 4) {
+ av_log(avctx, AV_LOG_ERROR, "Extradata missing or too short\n");
+ return -1;
+ }
+ flags = AV_RL32(avctx->extradata);
+ c->has_alpha = flags & BINK_FLAG_ALPHA;
c->swap_planes = c->version >= 'i';
if (!bink_trees[15].table) {
for (i = 0; i < 16; i++) {