{
int plane, band_num, indx, transform_id, scan_indx;
int i;
+ int quant_mat;
plane = get_bits(&ctx->gb, 2);
band_num = get_bits(&ctx->gb, 4);
band->scan = scan_index_to_tab[scan_indx];
band->scan_size = band->blk_size;
- band->quant_mat = get_bits(&ctx->gb, 5);
- if (band->quant_mat >= FF_ARRAY_ELEMS(quant_index_to_tab)) {
-
- if (band->quant_mat == 31)
- av_log(avctx, AV_LOG_ERROR,
- "Custom quant matrix encountered!\n");
- else
- avpriv_request_sample(avctx, "Quantization matrix %d",
- band->quant_mat);
- band->quant_mat = -1;
+ quant_mat = get_bits(&ctx->gb, 5);
+ if (quant_mat == 31) {
+ av_log(avctx, AV_LOG_ERROR, "Custom quant matrix encountered!\n");
+ return AVERROR_INVALIDDATA;
+ }
+ if (quant_mat >= FF_ARRAY_ELEMS(quant_index_to_tab)) {
+ avpriv_request_sample(avctx, "Quantization matrix %d",
+ quant_mat);
return AVERROR_INVALIDDATA;
}
+ band->quant_mat = quant_mat;
} else {
if (old_blk_size != band->blk_size) {
av_log(avctx, AV_LOG_ERROR,
"inherited\n");
return AVERROR_INVALIDDATA;
}
- if (band->quant_mat < 0) {
- av_log(avctx, AV_LOG_ERROR, "Invalid quant_mat inherited\n");
- return AVERROR_INVALIDDATA;
- }
}
if (quant_index_to_tab[band->quant_mat] > 4 && band->blk_size == 4) {
av_log(avctx, AV_LOG_ERROR, "Invalid quant matrix for 4x4 block encountered!\n");