On 2/5/2025 12:10 PM, Zhao Zhili wrote:
- skip_bits1(gb); /* direct_depenency_all_layers_flag */
- direct_dep_type = get_bits_long(gb, direct_dep_type_len);
- if (direct_dep_type > HEVC_DEP_TYPE_BOTH) {
- av_log(avctx, AV_LOG_WARNING, "Unsupported direct_dep_type: %d\n",
- direct_dep_type);
- return AVERROR_PATCHWELCOME;
+ /* direct_depenency_all_layers_flag */
+ if (get_bits1(gb)) {
+ direct_dep_type = get_bits_long(gb, direct_dep_type_len);
+ if (direct_dep_type > HEVC_DEP_TYPE_BOTH) {
+ av_log(avctx, AV_LOG_WARNING, "Unsupported direct_dep_type: %d\n",
+ direct_dep_type);
+ return AVERROR_PATCHWELCOME;
+ }
}
direct_dep_type is also coded if direct_depenency_all_layers_flag is false when (if I'm reading the spec right) vps->num_direct_ref_layers[1] is not 0.
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