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Code Issues Releases Activity

avcodec/hevc: Parse recovery point SEI

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Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>
This commit is contained in:
Zhao Zhili
2025-01-23 22:12:09 +08:00
parent 5470d024e1
commit b6652115de
3 changed files with 24 additions and 0 deletions
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1
libavcodec/hevc/hevcdec.c
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@ -4087,6 +4087,7 @@ static int hevc_update_thread_context(AVCodecContext *dst,
s->sei.common.display_orientation = s0->sei.common.display_orientation;
s->sei.common.alternative_transfer = s0->sei.common.alternative_transfer;
s->sei.tdrdi = s0->sei.tdrdi;
s->sei.recovery_point = s0->sei.recovery_point;
return 0;
}

16
libavcodec/hevc/sei.c
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@ -79,6 +79,20 @@ static int decode_nal_sei_pic_timing(HEVCSEI *s, GetBitContext *gb,
return 0;
}
static int decode_nal_sei_recovery_point(HEVCSEI *s, GetBitContext *gb)
{
HEVCSEIRecoveryPoint *rec = &s->recovery_point;
int recovery_poc_cnt = get_se_golomb(gb);
if (recovery_poc_cnt > INT16_MAX || recovery_poc_cnt < INT16_MIN)
return AVERROR_INVALIDDATA;
rec->recovery_poc_cnt = recovery_poc_cnt;
rec->exact_match_flag = get_bits1(gb);
rec->broken_link_flag = get_bits1(gb);
return 0;
}
static int decode_nal_sei_active_parameter_sets(HEVCSEI *s, GetBitContext *gb, void *logctx)
{
int num_sps_ids_minus1;
@ -212,6 +226,8 @@ static int decode_nal_sei_prefix(GetBitContext *gb, GetByteContext *gbyte,
return decode_nal_sei_decoded_picture_hash(&s->picture_hash, gbyte);
case SEI_TYPE_PIC_TIMING:
return decode_nal_sei_pic_timing(s, gb, ps, logctx);
case SEI_TYPE_RECOVERY_POINT:
return decode_nal_sei_recovery_point(s, gb);
case SEI_TYPE_ACTIVE_PARAMETER_SETS:
return decode_nal_sei_active_parameter_sets(s, gb, logctx);
case SEI_TYPE_TIME_CODE:

7
libavcodec/hevc/sei.h
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@ -95,6 +95,12 @@ typedef struct HEVCSEITDRDI {
uint8_t three_dimensional_reference_displays_extension_flag;
} HEVCSEITDRDI;
typedef struct HEVCSEIRecoveryPoint {
int16_t recovery_poc_cnt;
uint8_t exact_match_flag;
uint8_t broken_link_flag;
} HEVCSEIRecoveryPoint;
typedef struct HEVCSEI {
H2645SEI common;
HEVCSEIPictureHash picture_hash;
@ -102,6 +108,7 @@ typedef struct HEVCSEI {
int active_seq_parameter_set_id;
HEVCSEITimeCode timecode;
HEVCSEITDRDI tdrdi;
HEVCSEIRecoveryPoint recovery_point;
} HEVCSEI;
struct HEVCParamSets;