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avcodec/cbs_sei_syntax_template: add sei message frame_field_information

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Signed-off-by: Wu Jianhua <toqsxw@outlook.com>
This commit is contained in:
Wu Jianhua
2025-04-27 19:44:45 +08:00
committed by Nuo Mi
parent 97137e38c1
commit 33d511b581
3 changed files with 44 additions and 0 deletions
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6
libavcodec/cbs_h2645.c
View File

@ -2323,6 +2323,12 @@ static const SEIMessageTypeDescriptor cbs_sei_h274_types[] = {
sizeof(SEIRawDisplayOrientation),
SEI_MESSAGE_RW(sei, display_orientation)
},
{
SEI_TYPE_FRAME_FIELD_INFO,
1, 0,
sizeof(SEIRawFrameFieldInformation),
SEI_MESSAGE_RW(sei, frame_field_information)
},
SEI_MESSAGE_TYPE_END,
};

12
libavcodec/cbs_sei.h
View File

@ -125,6 +125,18 @@ typedef struct SEIRawDisplayOrientation {
uint8_t display_orientation_reserved_zero_3bits;
} SEIRawDisplayOrientation;
typedef struct SEIRawFrameFieldInformation {
uint8_t ffi_field_pic_flag;
uint8_t ffi_bottom_field_flag;
uint8_t ffi_pairing_indicated_flag;
uint8_t ffi_paired_with_next_field_flag;
uint8_t ffi_display_fields_from_frame_flag;
uint8_t ffi_top_field_first_flag;
uint8_t ffi_display_elemental_periods_minus1;
uint8_t ffi_source_scan_type;
uint8_t ffi_duplicate_flag;
} SEIRawFrameFieldInformation;
typedef struct SEIRawMessage {
uint32_t payload_type;
uint32_t payload_size;

26
libavcodec/cbs_sei_syntax_template.c
View File

@ -295,6 +295,32 @@ SEI_FUNC(display_orientation, (CodedBitstreamContext *ctx, RWContext *rw,
return 0;
}
SEI_FUNC(frame_field_information, (CodedBitstreamContext *ctx, RWContext *rw,
SEIRawFrameFieldInformation *current,
SEIMessageState *state))
{
int err;
HEADER("Frame-field information");
flag(ffi_field_pic_flag);
if (current->ffi_field_pic_flag) {
flag(ffi_bottom_field_flag);
flag(ffi_pairing_indicated_flag);
if (current->ffi_pairing_indicated_flag)
flag(ffi_paired_with_next_field_flag);
} else {
flag(ffi_display_fields_from_frame_flag);
if (current->ffi_display_fields_from_frame_flag)
flag(ffi_top_field_first_flag);
u(8, ffi_display_elemental_periods_minus1, 0, 0xff);
}
u(2, ffi_source_scan_type, 0, 3);
flag(ffi_duplicate_flag);
return 0;
}
static int FUNC(message)(CodedBitstreamContext *ctx, RWContext *rw,
SEIRawMessage *current)
{