@@ -306,6 +306,53 @@ static int decode_nal_sei_alternative_transfer(HEVCSEIAlternativeTransfer *s, Ge
return 0;
}
+static int decode_nal_sei_timecode(HEVCSEITimeCode *s, GetBitContext *gb)
+{
+ s->num_clock_ts = get_bits(gb, 2);
+
+ for (int i = 0; i < s->num_clock_ts; i++) {
+ s->clock_timestamp_flag[i] = get_bits(gb, 1);
+
+ if (s->clock_timestamp_flag[i]) {
+ s->units_field_based_flag[i] = get_bits(gb, 1);
+ s->counting_type[i] = get_bits(gb, 5);
+ s->full_timestamp_flag[i] = get_bits(gb, 1);
+ s->discontinuity_flag[i] = get_bits(gb, 1);
+ s->cnt_dropped_flag[i] = get_bits(gb, 1);
+
+ s->n_frames[i] = get_bits(gb, 9);
+
+ if (s->full_timestamp_flag[i]) {
+ s->seconds_value[i] = av_clip(get_bits(gb, 6), 0, 59);
+ s->minutes_value[i] = av_clip(get_bits(gb, 6), 0, 59);
+ s->hours_value[i] = av_clip(get_bits(gb, 5), 0, 23);
+ } else {
+ s->seconds_flag[i] = get_bits(gb, 1);
+ if (s->seconds_flag[i]) {
+ s->seconds_value[i] = av_clip(get_bits(gb, 6), 0, 59);
+ s->minutes_flag[i] = get_bits(gb, 1);
+ if (s->minutes_flag[i]) {
+ s->minutes_value[i] = av_clip(get_bits(gb, 6), 0, 59);
+ s->hours_flag[i] = get_bits(gb, 1);
+ if (s->hours_flag[i]) {
+ s->hours_value[i] = av_clip(get_bits(gb, 5), 0, 23);
+ }
+ }
+ }
+ }
+
+ s->time_offset_length[i] = get_bits(gb, 5);
+ if (s->time_offset_length[i] > 0) {
+ s->time_offset_value[i] = get_bits(gb, s->time_offset_length[i]);
+ }
+ }
+ }
+
+ s->present = 1;
+ return 0;
+}
+
+
static int decode_nal_sei_prefix(GetBitContext *gb, void *logctx, HEVCSEI *s,
const HEVCParamSets *ps, int type, int size)
{
@@ -330,6 +377,8 @@ static int decode_nal_sei_prefix(GetBitContext *gb, void *logctx, HEVCSEI *s,
return decode_nal_sei_user_data_unregistered(&s->unregistered, gb, size);
case HEVC_SEI_TYPE_ALTERNATIVE_TRANSFER_CHARACTERISTICS:
return decode_nal_sei_alternative_transfer(&s->alternative_transfer, gb);
+ case HEVC_SEI_TYPE_TIME_CODE:
+ return decode_nal_sei_timecode(&s->timecode, gb);
default:
av_log(logctx, AV_LOG_DEBUG, "Skipped PREFIX SEI %d\n", type);
skip_bits_long(gb, 8 * size);
@@ -115,6 +115,26 @@ typedef struct HEVCSEIAlternativeTransfer {
int preferred_transfer_characteristics;
} HEVCSEIAlternativeTransfer;
+typedef struct HEVCSEITimeCode {
+ int present;
+ uint8_t num_clock_ts;
+ uint8_t clock_timestamp_flag[3];
+ uint8_t units_field_based_flag[3];
+ uint8_t counting_type[3];
+ uint8_t full_timestamp_flag[3];
+ uint8_t discontinuity_flag[3];
+ uint8_t cnt_dropped_flag[3];
+ uint16_t n_frames[3];
+ uint8_t seconds_value[3];
+ uint8_t minutes_value[3];
+ uint8_t hours_value[3];
+ uint8_t seconds_flag[3];
+ uint8_t minutes_flag[3];
+ uint8_t hours_flag[3];
+ uint8_t time_offset_length[3];
+ int32_t time_offset_value[3];
+} HEVCSEITimeCode;
+
typedef struct HEVCSEI {
HEVCSEIPictureHash picture_hash;
HEVCSEIFramePacking frame_packing;
@@ -126,6 +146,7 @@ typedef struct HEVCSEI {
HEVCSEIContentLight content_light;
int active_seq_parameter_set_id;
HEVCSEIAlternativeTransfer alternative_transfer;
+ HEVCSEITimeCode timecode;
} HEVCSEI;
struct HEVCParamSets;