return 1;
}
+static int decode_registered_user_data_closed_caption(HEVCContext *s, int size)
+{
+ int flag;
+ int user_data_type_code;
+ int cc_count;
+
+ GetBitContext *gb = &s->HEVClc->gb;
+
+ if (size < 3)
+ return AVERROR(EINVAL);
+
+ user_data_type_code = get_bits(gb, 8);
+ if (user_data_type_code == 0x3) {
+ skip_bits(gb, 1); // reserved
+
+ flag = get_bits(gb, 1); // process_cc_data_flag
+ if (flag) {
+ skip_bits(gb, 1);
+ cc_count = get_bits(gb, 5);
+ skip_bits(gb, 8); // reserved
+ size -= 2;
+
+ if (cc_count && size >= cc_count * 3) {
+ const uint64_t new_size = (s->a53_caption_size + cc_count
+ * UINT64_C(3));
+ int i, ret;
+
+ if (new_size > INT_MAX)
+ return AVERROR(EINVAL);
+
+ /* Allow merging of the cc data from two fields. */
+ ret = av_reallocp(&s->a53_caption, new_size);
+ if (ret < 0)
+ return ret;
+
+ for (i = 0; i < cc_count; i++) {
+ s->a53_caption[s->a53_caption_size++] = get_bits(gb, 8);
+ s->a53_caption[s->a53_caption_size++] = get_bits(gb, 8);
+ s->a53_caption[s->a53_caption_size++] = get_bits(gb, 8);
+ }
+ skip_bits(gb, 8); // marker_bits
+ }
+ }
+ } else {
+ int i;
+ for (i = 0; i < size - 1; i++)
+ skip_bits(gb, 8);
+ }
+
+ return 0;
+}
+
+static int decode_nal_sei_user_data_registered_itu_t_t35(HEVCContext *s, int size)
+{
+ uint32_t country_code;
+ uint32_t user_identifier;
+
+ GetBitContext *gb = &s->HEVClc->gb;
+
+ if (size < 7)
+ return AVERROR(EINVAL);
+ size -= 7;
+
+ country_code = get_bits(gb, 8);
+ if (country_code == 0xFF) {
+ skip_bits(gb, 8);
+ size--;
+ }
+
+ skip_bits(gb, 8);
+ skip_bits(gb, 8);
+
+ user_identifier = get_bits_long(gb, 32);
+
+ switch (user_identifier) {
+ case MKBETAG('G', 'A', '9', '4'):
+ return decode_registered_user_data_closed_caption(s, size);
+ default:
+ skip_bits_long(gb, size * 8);
+ break;
+ }
+ return 0;
+}
+
static int active_parameter_sets(HEVCContext *s)
{
GetBitContext *gb = &s->HEVClc->gb;
active_parameter_sets(s);
av_log(s->avctx, AV_LOG_DEBUG, "Skipped PREFIX SEI %d\n", type);
return 0;
+ case SEI_TYPE_USER_DATA_REGISTERED_ITU_T_T35:
+ return decode_nal_sei_user_data_registered_itu_t_t35(s, size);
default:
av_log(s->avctx, AV_LOG_DEBUG, "Skipped PREFIX SEI %d\n", type);
skip_bits_long(gb, 8 * size);