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gstreamer/gst-libs/gst/codecparsers/gsth265parser.h

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/* Gstreamer H.265 bitstream parser
* Copyright (C) 2013 Intel Corporation
* Copyright (C) 2013 Sreerenj Balachandran <sreerenj.balachandran@intel.com>
*
* Contact: Sreerenj Balachandran <sreerenj.balachandran@intel.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __GST_H265_PARSER_H__
#define __GST_H265_PARSER_H__
#ifndef GST_USE_UNSTABLE_API
#warning "The H.265 parsing library is unstable API and may change in future."
#warning "You can define GST_USE_UNSTABLE_API to avoid this warning."
#endif
#include <gst/gst.h>
G_BEGIN_DECLS
#define GST_H265_MAX_SUB_LAYERS 8
#define GST_H265_MAX_VPS_COUNT 16
#define GST_H265_MAX_SPS_COUNT 16
#define GST_H265_MAX_PPS_COUNT 64
#define GST_H265_IS_B_SLICE(slice) ((slice)->type == GST_H265_B_SLICE)
#define GST_H265_IS_P_SLICE(slice) ((slice)->type == GST_H265_P_SLICE)
#define GST_H265_IS_I_SLICE(slice) ((slice)->type == GST_H265_I_SLICE)
/**
* GstH265Profile:
* @GST_H265_PROFILE_MAIN: Main profile (A.3.2)
* @GST_H265_PROFILE_MAIN_10: Main 10 profile (A.3.3)
* @GST_H265_PROFILE_MAIN_STILL_PICTURE: Main Still Picture profile (A.3.4)
*
* H.265 Profiles.
*
*/
typedef enum {
GST_H265_PROFILE_MAIN = 1,
GST_H265_PROFILE_MAIN_10 = 2,
GST_H265_PROFILE_MAIN_STILL_PICTURE = 3
} GstH265Profile;
/**
* GstH265NalUnitType:
* @GST_H265_NAL_SLICE_TRAIL_N: Slice nal of a non-TSA, non-STSA trailing picture
* @GST_H265_NAL_SLICE_TRAIL_R: Slice nal of a non-TSA, non-STSA trailing picture
* @GST_H265_NAL_SLICE_TSA_N: Slice nal of a TSA picture
* @GST_H265_NAL_SLICE_TSA_R: Slice nal of a TSA picture
* @GST_H265_NAL_SLICE_STSA_N: Slice nal of a STSA picture
* @GST_H265_NAL_SLICE_STSA_R: Slice nal of a STSA picture
* @GST_H265_NAL_SLICE_RADL_N: Slice nal of a RADL picture
* @GST_H265_NAL_SLICE_RADL_R: Slice nal of a RADL piicture
* @GST_H265_NAL_SLICE_RASL_N: Slice nal of a RASL picture
* @GST_H265_NAL_SLICE_RASL_R: Slice nal of a RASL picture
* @GST_H265_NAL_SLICE_BLA_W_LP: Slice nal of a BLA picture
* @GST_H265_NAL_SLICE_BLA_W_RADL: Slice nal of a BLA picture
* @GST_H265_NAL_SLICE_BLA_N_LP: Slice nal of a BLA picture
* @GST_H265_NAL_SLICE_IDR_W_RADL: Slice nal of an IDR picture
* @GST_H265_NAL_SLICE_IDR_N_LP: Slice nal of an IDR picture
* @GST_H265_NAL_SLICE_CRA_NUT: Slice nal of a CRA picture
* @GST_H265_NAL_VPS: Video parameter set(VPS) nal unit
* @GST_H265_NAL_SPS: Sequence parameter set (SPS) nal unit
* @GST_H265_NAL_PPS: Picture parameter set (PPS) nal unit
* @GST_H265_NAL_AUD: Access unit (AU) delimiter nal unit
* @GST_H265_NAL_EOS: End of sequence (EOS) nal unit
* @GST_H265_NAL_EOB: End of bitstream (EOB) nal unit
* @GST_H265_NAL_FD: Filler data (FD) nal lunit
* @GST_H265_NAL_PREFIX_SEI: Supplemental enhancement information prefix nal unit
* @GST_H265_NAL_SUFFIX_SEI: Suppliemental enhancement information suffix nal unit
*
* Indicates the type of H265 Nal Units
*/
typedef enum
{
GST_H265_NAL_SLICE_TRAIL_N = 0,
GST_H265_NAL_SLICE_TRAIL_R = 1,
GST_H265_NAL_SLICE_TSA_N = 2,
GST_H265_NAL_SLICE_TSA_R = 3,
GST_H265_NAL_SLICE_STSA_N = 4,
GST_H265_NAL_SLICE_STSA_R = 5,
GST_H265_NAL_SLICE_RADL_N = 6,
GST_H265_NAL_SLICE_RADL_R = 7,
GST_H265_NAL_SLICE_RASL_N = 8,
GST_H265_NAL_SLICE_RASL_R = 9,
GST_H265_NAL_SLICE_BLA_W_LP = 16,
GST_H265_NAL_SLICE_BLA_W_RADL = 17,
GST_H265_NAL_SLICE_BLA_N_LP = 18,
GST_H265_NAL_SLICE_IDR_W_RADL = 19,
GST_H265_NAL_SLICE_IDR_N_LP = 20,
GST_H265_NAL_SLICE_CRA_NUT = 21,
GST_H265_NAL_VPS = 32,
GST_H265_NAL_SPS = 33,
GST_H265_NAL_PPS = 34,
GST_H265_NAL_AUD = 35,
GST_H265_NAL_EOS = 36,
GST_H265_NAL_EOB = 37,
GST_H265_NAL_FD = 38,
GST_H265_NAL_PREFIX_SEI = 39,
GST_H265_NAL_SUFFIX_SEI = 40
} GstH265NalUnitType;
#define RESERVED_NON_IRAP_SUBLAYER_NAL_TYPE_MIN 10
#define RESERVED_NON_IRAP_SUBLAYER_NAL_TYPE_MAX 15
#define RESERVED_IRAP_NAL_TYPE_MIN 22
#define RESERVED_IRAP_NAL_TYPE_MAX 23
#define RESERVED_NON_IRAP_NAL_TYPE_MIN 24
#define RESERVED_NON_IRAP_NAL_TYPE_MAX 31
#define RESERVED_NON_VCL_NAL_TYPE_MIN 41
#define RESERVED_NON_VCL_NAL_TYPE_MAX 47
#define UNSPECIFIED_NON_VCL_NAL_TYPE_MIN 48
#define UNSPECIFIED_NON_VCL_NAL_TYPE_MAX 63
/**
* GstH265ParserResult:
* @GST_H265_PARSER_OK: The parsing succeded
* @GST_H265_PARSER_BROKEN_DATA: The data to parse is broken
* @GST_H265_PARSER_BROKEN_LINK: The link to structure needed for the parsing couldn't be found
* @GST_H265_PARSER_ERROR: An error accured when parsing
* @GST_H265_PARSER_NO_NAL: No nal found during the parsing
* @GST_H265_PARSER_NO_NAL_END: Start of the nal found, but not the end.
*
* The result of parsing H265 data.
*/
typedef enum
{
GST_H265_PARSER_OK,
GST_H265_PARSER_BROKEN_DATA,
GST_H265_PARSER_BROKEN_LINK,
GST_H265_PARSER_ERROR,
GST_H265_PARSER_NO_NAL,
GST_H265_PARSER_NO_NAL_END
} GstH265ParserResult;
/**
* GstH265SEIPayloadType:
* @GST_H265_SEI_BUF_PERIOD: Buffering Period SEI Message
* @GST_H265_SEI_PIC_TIMING: Picture Timing SEI Message
* ...
*
* The type of SEI message.
*/
typedef enum
{
GST_H265_SEI_BUF_PERIOD = 0,
GST_H265_SEI_PIC_TIMING = 1
/* and more... */
} GstH265SEIPayloadType;
/**
* GstH265SEIPicStructType:
* @GST_H265_SEI_PIC_STRUCT_FRAME: Picture is a frame
* @GST_H265_SEI_PIC_STRUCT_TOP_FIELD: Top field of frame
* @GST_H265_SEI_PIC_STRUCT_BOTTOM_FIELD: Botom field of frame
* @GST_H265_SEI_PIC_STRUCT_TOP_BOTTOM: Top bottom field of frame
* @GST_H265_SEI_PIC_STRUCT_BOTTOM_TOP: bottom top field of frame
* @GST_H265_SEI_PIC_STRUCT_TOP_BOTTOM_TOP: top bottom top field of frame
* @GST_H265_SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM: bottom top bottom field of frame
* @GST_H265_SEI_PIC_STRUCT_FRAME_DOUBLING: indicates that the frame should
* be displayed two times consecutively
* @GST_H265_SEI_PIC_STRUCT_FRAME_TRIPLING: indicates that the frame should be
* displayed three times consecutively
* @GST_H265_SEI_PIC_STRUCT_TOP_PAIRED_PREVIOUS_BOTTOM: top field paired with
* previous bottom field in output order
* @GST_H265_SEI_PIC_STRUCT_BOTTOM_PAIRED_PREVIOUS_TOP: bottom field paried with
* previous top field in output order
* @GST_H265_SEI_PIC_STRUCT_TOP_PAIRED_NEXT_BOTTOM: top field paired with next
* bottom field in output order
* @GST_H265_SEI_PIC_STRUCT_BOTTOM_PAIRED_NEXT_TOP: bottom field paired with
* next top field in output order
*
* SEI pic_struct type
*/
typedef enum
{
GST_H265_SEI_PIC_STRUCT_FRAME = 0,
GST_H265_SEI_PIC_STRUCT_TOP_FIELD = 1,
GST_H265_SEI_PIC_STRUCT_BOTTOM_FIELD = 2,
GST_H265_SEI_PIC_STRUCT_TOP_BOTTOM = 3,
GST_H265_SEI_PIC_STRUCT_BOTTOM_TOP = 4,
GST_H265_SEI_PIC_STRUCT_TOP_BOTTOM_TOP = 5,
GST_H265_SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM = 6,
GST_H265_SEI_PIC_STRUCT_FRAME_DOUBLING = 7,
GST_H265_SEI_PIC_STRUCT_FRAME_TRIPLING = 8,
GST_H265_SEI_PIC_STRUCT_TOP_PAIRED_PREVIOUS_BOTTOM = 9,
GST_H265_SEI_PIC_STRUCT_BOTTOM_PAIRED_PREVIOUS_TOP = 10,
GST_H265_SEI_PIC_STRUCT_TOP_PAIRED_NEXT_BOTTOM = 11,
GST_H265_SEI_PIC_STRUCT_BOTTOM_PAIRED_NEXT_TOP = 12
} GstH265SEIPicStructType;
/**
* GstH265SliceType:
*
* Type of Picture slice
*/
typedef enum
{
GST_H265_B_SLICE = 0,
GST_H265_P_SLICE = 1,
GST_H265_I_SLICE = 2
} GstH265SliceType;
typedef enum
{
GST_H265_QUANT_MATIX_4X4 = 0,
GST_H265_QUANT_MATIX_8X8 = 1,
GST_H265_QUANT_MATIX_16X16 = 2,
GST_H265_QUANT_MATIX_32X32 = 3
} GstH265QuantMatrixSize;
typedef struct _GstH265Parser GstH265Parser;
typedef struct _GstH265NalUnit GstH265NalUnit;
typedef struct _GstH265VPS GstH265VPS;
typedef struct _GstH265SPS GstH265SPS;
typedef struct _GstH265PPS GstH265PPS;
typedef struct _GstH265ProfileTierLevel GstH265ProfileTierLevel;
typedef struct _GstH265SubLayerHRDParams GstH265SubLayerHRDParams;
typedef struct _GstH265HRDParams GstH265HRDParams;
typedef struct _GstH265VUIParams GstH265VUIParams;
typedef struct _GstH265ScalingList GstH265ScalingList;
typedef struct _GstH265RefPicListModification GstH265RefPicListModification;
typedef struct _GstH265PredWeightTable GstH265PredWeightTable;
typedef struct _GstH265ShortTermRefPicSet GstH265ShortTermRefPicSet;
typedef struct _GstH265SliceHdr GstH265SliceHdr;
typedef struct _GstH265PicTiming GstH265PicTiming;
typedef struct _GstH265BufferingPeriod GstH265BufferingPeriod;
typedef struct _GstH265SEIMessage GstH265SEIMessage;
/**
* GstH265NalUnit:
* @type: A #GstH265NalUnitType
* @layer_id: A nal unit layer id
* @temporal_id_plus1: A nal unit temporal identifier
* @size: The size of the nal unit starting from @offset
* @offset: The offset of the actual start of the nal unit
* @sc_offset:The offset of the start code of the nal unit
* @valid: If the nal unit is valid, which mean it has
* already been parsed
* @data: The data from which the Nalu has been parsed
*
* Structure defining the Nal unit headers
*/
struct _GstH265NalUnit
{
guint8 type;
guint8 layer_id;
guint8 temporal_id_plus1;
/* calculated values */
guint size;
guint offset;
guint sc_offset;
gboolean valid;
guint8 *data;
guint8 header_bytes;
};
/**
* GstH265ProfileTierLevel:
* @profile_space: specifies the context for the interpretation of general_profile_idc and
* general_profile_combatibility_flag
* @tier_flag: the tier context for the interpretation of general_level_idc
* @profile_idc: profile id
* @profile_compatibility_flag: compatibility flags
* @progressive_source_flag: flag to indicate the type of stream
* @interlaced_source_flag: flag to indicate the type of stream
* @non_packed_constraint_flag: indicate the presence of frame packing arragement sei message
* @frame_only_constraint_flag: recognize the field_seq_flag
* @level idc: indicate the level which the CVS confirms
* @sub_layer_profile_present_flag: sublayer profile presence ind
* @sub_layer_level_present_flag:sublayer level presence indicator.
* @sub_layer_profile_space: profile space for sublayers
* @sub_layer_tier_flag: tier flags for sublayers.
* @sub_layer_profile_idc: conformant profile indicator for sublayers.
* @sub_layer_profile_compatibility_flag[6][32]: compatibility flags for sublayers
* @sub_layer_progressive_source_flag:progressive stream indicator for sublayer
* @sub_layer_interlaced_source_flag: interlaced stream indicator for sublayer
* @sub_layer_non_packed_constraint_flag: indicate the presence of frame packing arrangement
* sei message with in sublayers
* @sub_layer_frame_only_constraint_flag:recognize the sublayer specific field_seq_flag
* @sub_layer_level_idc:indicate the sublayer specific level
*
* Define ProfileTierLevel parameters
*/
struct _GstH265ProfileTierLevel {
guint8 profile_space;
guint8 tier_flag;
guint8 profile_idc;
guint8 profile_compatibility_flag[32];
guint8 progressive_source_flag;
guint8 interlaced_source_flag;
guint8 non_packed_constraint_flag;
guint8 frame_only_constraint_flag;
guint8 level_idc;
guint8 sub_layer_profile_present_flag[6];
guint8 sub_layer_level_present_flag[6];
guint8 sub_layer_profile_space[6];
guint8 sub_layer_tier_flag[6];
guint8 sub_layer_profile_idc[6];
guint8 sub_layer_profile_compatibility_flag[6][32];
guint8 sub_layer_progressive_source_flag[6];
guint8 sub_layer_interlaced_source_flag[6];
guint8 sub_layer_non_packed_constraint_flag[6];
guint8 sub_layer_frame_only_constraint_flag[6];
guint8 sub_layer_level_idc[6];
};
/**
* GstH265SubLayerHRDParams:
* @bit_rate_value_minus1:togeter with bit_rate_scale, it specifies the
* maximum input bitrate when the CPB operates at the access unit level
* @cpb_size_value_minus1: is used together with cpb_size_scale to specify the CPB size
* when the CPB operates at the access unit level
* @cpb_size_du_value_minus1: is used together with cpb_size_du_scale to
* specify the CPB size when the CPB operates at sub-picture level
* @bit_rate_du_value_minus1: together with bit_rate_scale, it specifies the
* maximum input bit rate when the CPB operates at the sub-picture level
* @cbr_flag: indicate whether HSS operates in intermittent bit rate mode or
* constant bit rate mode.
*
* Defines the Sublayer HRD parameters
*/
struct _GstH265SubLayerHRDParams
{
guint32 bit_rate_value_minus1[32];
guint32 cpb_size_value_minus1[32];
guint32 cpb_size_du_value_minus1[32];
guint32 bit_rate_du_value_minus1[32];
guint8 cbr_flag[32];
};
/**
* GstH265HRDParams:
* @nal_hrd_parameters_present_flag: indicate the presence of NAL HRD parameters
* @vcl_hrd_parameters_present_flag: indicate the presence of VCL HRD parameters
* @sub_pic_hrd_params_present_flag: indicate the presence of sub_pic_hrd_params
* @tick_divisor_minus2: is used to specify the clock sub-tick
* @du_cpb_removal_delay_increment_length_minus1: specifies the length,
* in bits, of the nal_initial_cpb_removal_delay
* @sub_pic_cpb_params_in_pic_timing_sei_flag: specifies the length, in bits, of
* the cpb_delay_offset and the au_cpb_removal_delay_minus1 syntax elements.
* @dpb_output_delay_du_length_minu1: specifies the length, in bits, of the
* dpb_delay_offset and the pic_dpb_output_delay syntax elements
* @bit_rate_scale: maximum input bitrate
* @cpb_size_scale: CPB size when operates in access unit level
* @cpb_size_du_scale: CPB size when operates in sub-picture level
* @initial_cpb_removal_delay_length_minus1: specifies the length, in bits, of the
* nal_initial_cpb_removal_delay, nal_initial_cpb_removal_offset,
* vcl_initial_cpb_removal_delay and vcl_initial_cpb_removal_offset.
* @au_cpb_removal_delay_length_minus1: specifies the length, in bits, of the
* cpb_delay_offset and the au_cpb_removal_delay_minus1 syntax elements
* @dpb_output_delay_length_minus1: specifies the length, in bits, of the
* dpb_delay_offset and the pic_dpb_output_delay syntax elements
* @fixed_pic_rate_general_flag: flag to indicate the presence of constraint
* on the temporal distance between the HRD output times of consecutive
* pictures in output order
* @fixed_pic_rate_within_cvs_flag: same as fixed_pic_rate_general_flag
* @elemental_duration_in_tc_minus1: temporal distance in clock ticks
* @low_delay_hrd_flag: specifies the HRD operational mode
* @cpb_cnt_minus1:specifies the number of alternative CPS specifications.
* @sublayer_hrd_params: Sublayer HRD parameters.
*
* Defines the HRD parameters
*/
struct _GstH265HRDParams
{
guint8 nal_hrd_parameters_present_flag;
guint8 vcl_hrd_parameters_present_flag;
guint8 sub_pic_hrd_params_present_flag;
guint8 tick_divisor_minus2;
guint8 du_cpb_removal_delay_increment_length_minus1;
guint8 sub_pic_cpb_params_in_pic_timing_sei_flag;
guint8 dpb_output_delay_du_length_minus1;
guint8 bit_rate_scale;
guint8 cpb_size_scale;
guint8 cpb_size_du_scale;
guint8 initial_cpb_removal_delay_length_minus1;
guint8 au_cpb_removal_delay_length_minus1;
guint8 dpb_output_delay_length_minus1;
guint8 fixed_pic_rate_general_flag [7];
guint8 fixed_pic_rate_within_cvs_flag [7];
guint16 elemental_duration_in_tc_minus1 [7];
guint8 low_delay_hrd_flag [7];
guint8 cpb_cnt_minus1[7];
GstH265SubLayerHRDParams sublayer_hrd_params[7];
};
/**
* GstH265VPS:
* @id: vps id
* @max_layers_minus1: should be zero, but can be other values in future
* @max_sub_layers_minus1:specifies the maximum number of temporal sub-layers
* @temporal_id_nesting_flag: specifies whether inter prediction is additionally restricted
* @profile_tier_level:ProifleTierLevel info
* @sub_layer_ordering_info_present_flag:
* indicates the presense of vps_max_dec_pic_buffering_minus1,
* vps_max_num_reorder_pics and vps_max_latency_increase_plus1
* @max_dec_pic_buffering_minus1: specifies the maximum required size of
* the decoded picture buffer
* @max_num_reorder_pics: indicates the maximum allowed number of pictures that can
* precede any picture in the CVS in decoding order
* @max_latency_increase_plus1: is used to compute the value of VpsMaxLatencyPictures
* @max_layer_id: specifies the maximum allowed value of nuh_layer_id
* @num_layer_sets_minus1: specifies the number of layer sets
* @layer_id_included_flag: specifies whether a nuh_layer_id included in the
* layer identifier list
* @timing_info_present_flag: indicate the presence of num_units_in_tick,
* time_scale, poc_proportional_to_timing_flag and num_hrd_parameters
* @num_units_in_tick: number of time units in a tick
* @time_scale: number of time units that pass in one second
* @poc_proportional_to_timing_flag: indicate whether the picture order count is
* proportional to output timin
* @num_ticks_poc_diff_one_minus1: specifies the number of clock ticks corresponding
* to a difference of picture order count values equal to 1
* @num_hrd_parameters: number of hrd_parameters present
* @hrd_layer_set_idx: index to the list of layer hrd params.
* @hrd_params: the GstH265HRDParams list
*
* Defines the VPS parameters
**/
struct _GstH265VPS {
guint8 id;
guint8 max_layers_minus1;
guint8 max_sub_layers_minus1;
guint8 temporal_id_nesting_flag;
GstH265ProfileTierLevel profile_tier_level;
guint8 sub_layer_ordering_info_present_flag;
guint8 max_dec_pic_buffering_minus1[GST_H265_MAX_SUB_LAYERS];
guint8 max_num_reorder_pics[GST_H265_MAX_SUB_LAYERS];
guint32 max_latency_increase_plus1[GST_H265_MAX_SUB_LAYERS];
guint8 max_layer_id;
guint16 num_layer_sets_minus1;
guint8 timing_info_present_flag;
guint32 num_units_in_tick;
guint32 time_scale;
guint8 poc_proportional_to_timing_flag;
guint32 num_ticks_poc_diff_one_minus1;
guint16 num_hrd_parameters;
guint16 hrd_layer_set_idx;
guint8 cprms_present_flag;
GstH265HRDParams hrd_params;
guint8 vps_extension;
gboolean valid;
};
/**
* GstH265ShortTermRefPicSet:
* @inter_ref_pic_set_prediction_flag: %TRUE specifies that the stRpsIdx-th candidate
* short-term RPS is predicted from another candidate short-term RPS
* @delta_idx_minus1: plus 1 specifies the difference between the value of source and
* candidate short term RPS.
* @delta_rps_sign: delta_rps_sign and abs_delta_rps_minus1 together specify
* the value of the variable deltaRps.
* @abs_delta_rps_minus1: delta_rps_sign and abs_delta_rps_minus1 together specify
* the value of the variable deltaRps
*
* Defines the #GstH265ShortTermRefPicSet params
*/
struct _GstH265ShortTermRefPicSet
{
guint8 inter_ref_pic_set_prediction_flag;
guint8 delta_idx_minus1;
guint8 delta_rps_sign;
guint16 abs_delta_rps_minus1;
/* calculated values */
guint8 NumDeltaPocs;
guint8 NumNegativePics;
guint8 NumPositivePics;
guint8 UsedByCurrPicS0[16];
guint8 UsedByCurrPicS1[16];
gint32 DeltaPocS0[16];
gint32 DeltaPocS1[16];
};
/**
* GstH265VUIParams:
* @aspect_ratio_info_present_flag: %TRUE specifies that aspect_ratio_idc is present.
* %FALSE specifies that aspect_ratio_idc is not present
* @aspect_ratio_idc specifies the value of the sample aspect ratio of the luma samples
* @sar_width indicates the horizontal size of the sample aspect ratio
* @sar_height indicates the vertical size of the sample aspect ratio
* @overscan_info_present_flag: %TRUE overscan_appropriate_flag is present %FALSE otherwize
* @overscan_appropriate_flag: %TRUE indicates that the cropped decoded pictures
* output are suitable for display using overscan. %FALSE the cropped decoded pictures
* output contain visually important information
* @video_signal_type_present_flag: %TRUE specifies that video_format, video_full_range_flag and
* colour_description_present_flag are present.
* @video_format: indicates the representation of the picture
* @video_full_range_flag: indicates the black level and range of the luma and chroma signals
* @colour_description_present_flag: %TRUE specifies that colour_primaries,
* transfer_characteristics and matrix_coefficients are present
* @colour_primaries: indicates the chromaticity coordinates of the source primaries
* @transfer_characteristics: indicates the opto-electronic transfer characteristic
* @matrix_coefficients: describes the matrix coefficients used in deriving luma and chroma signals
* @chroma_loc_info_present_flag: %TRUE specifies that chroma_sample_loc_type_top_field and
* chroma_sample_loc_type_bottom_field are present, %FALSE otherwize
* @chroma_sample_loc_type_top_field: specify the location of chroma for top field
* @chroma_sample_loc_type_bottom_field specify the location of chroma for bottom field
* @neutral_chroma_indication_flag: %TRUE indicate that the value of chroma samples is equla
* to 1<<(BitDepthchrom-1).
* @field_seq_flag: %TRUE indicate field and %FALSE indicate frame
* @frame_field_info_present_flag: %TRUE indicate picture timing SEI messages are present for every
* picture and include the pic_struct, source_scan_type, and duplicate_flag syntax elements.
* @default_display_window_flag: %TRUE indicate that the default display window parameters present
* def_disp_win_left_offset:left offset of display rect
* def_disp_win_right_offset: right offset of display rect
* def_disp_win_top_offset: top offset of display rect
* def_disp_win_bottom_offset: bottom offset of display rect
* @timing_info_present_flag: %TRUE specifies that num_units_in_tick,
* time_scale and fixed_frame_rate_flag are present in the bitstream
* @num_units_in_tick: is the number of time units of a clock operating at the frequency time_scale Hz
* @time_scale: is the number of time units that pass in one second
* @poc_proportional_to_timing_flag: %TRUE indicates that the picture order count value for each picture
* in the CVS that is not the first picture in the CVS, in decoding order, is proportional to the output
* time of the picture relative to the output time of the first picture in the CVS.
* @num_ticks_poc_diff_one_minus1: plus 1 specifies the number of clock ticks corresponding to a
* difference of picture order count values equal to 1
* @hrd_parameters_present_flag: %TRUE if hrd parameters present in the bitstream
* @bitstream_restriction_flag: %TRUE specifies that the following coded video sequence bitstream restriction
* parameters are present
* @tiles_fixed_structure_flag: %TRUE indicates that each PPS that is active in the CVS has the same value
* of the syntax elements num_tile_columns_minus1, num_tile_rows_minus1, uniform_spacing_flag,
* column_width_minus1, row_height_minus1 and loop_filter_across_tiles_enabled_flag, when present
* @motion_vectors_over_pic_boundaries_flag: %FALSE indicates that no sample outside the
* picture boundaries and no sample at a fractional sample position, %TRUE indicates that one or more
* samples outside picture boundaries may be used in inter prediction
* @restricted_ref_pic_list_flag: %TRUE indicates that all P and B slices (when present) that belong to
* the same picture have an identical reference picture list 0, and that all B slices (when present)
* that belong to the same picture have an identical reference picture list 1
* @min_spatial_segmentation_idc: when not equal to 0, establishes a bound on the maximum possible size
* of distinct coded spatial segmentation regions in the pictures of the CVS
* @max_bytes_per_pic_denom: indicates a number of bytes not exceeded by the sum of the sizes of
* the VCL NAL units associated with any coded picture in the coded video sequence.
* @max_bits_per_min_cu_denom: indicates an upper bound for the number of coded bits of coding_unit
* data for any coding block in any picture of the CVS
* @log2_max_mv_length_horizontal: indicate the maximum absolute value of a decoded horizontal
* motion vector component
* @log2_max_mv_length_vertical: indicate the maximum absolute value of a decoded vertical
* motion vector component
*
* The structure representing the VUI parameters.
*/
struct _GstH265VUIParams
{
guint8 aspect_ratio_info_present_flag;
guint8 aspect_ratio_idc;
/* if aspect_ratio_idc == 255 */
guint16 sar_width;
guint16 sar_height;
guint8 overscan_info_present_flag;
/* if overscan_info_present_flag */
guint8 overscan_appropriate_flag;
guint8 video_signal_type_present_flag;
guint8 video_format;
guint8 video_full_range_flag;
guint8 colour_description_present_flag;
guint8 colour_primaries;
guint8 transfer_characteristics;
guint8 matrix_coefficients;
guint8 chroma_loc_info_present_flag;
guint8 chroma_sample_loc_type_top_field;
guint8 chroma_sample_loc_type_bottom_field;
guint8 neutral_chroma_indication_flag;
guint8 field_seq_flag;
guint8 frame_field_info_present_flag;
guint8 default_display_window_flag;
guint32 def_disp_win_left_offset;
guint32 def_disp_win_right_offset;
guint32 def_disp_win_top_offset;
guint32 def_disp_win_bottom_offset;
guint8 timing_info_present_flag;
/* if timing_info_present_flag */
guint32 num_units_in_tick;
guint32 time_scale;
guint8 poc_proportional_to_timing_flag;
/* if poc_proportional_to_timing_flag */
guint32 num_ticks_poc_diff_one_minus1;
guint8 hrd_parameters_present_flag;
/*if hrd_parameters_present_flat */
GstH265HRDParams hrd_params;
guint8 bitstream_restriction_flag;
/* if bitstream_restriction_flag */
guint8 tiles_fixed_structure_flag;
guint8 motion_vectors_over_pic_boundaries_flag;
guint8 restricted_ref_pic_lists_flag;
guint16 min_spatial_segmentation_idc;
guint8 max_bytes_per_pic_denom;
guint8 max_bits_per_min_cu_denom;
guint8 log2_max_mv_length_horizontal;
guint8 log2_max_mv_length_vertical;
/* calculated values */
guint par_n;
guint par_d;
};
/**
* GstH265ScalingList:
* @scaling_list_dc_coef_minus8_16x16: this plus 8 specifies the DC Coefficient
* values for 16x16 scaling list
* @scaling_list_dc_coef_minus8_32x32: this plus 8 specifies the DC Coefficient
* values for 32x32 scaling list
* @scaling_lists_4x4: 4x4 scaling list
* @scaling_lists_8x8: 8x8 scaling list
* @scaling_lists_16x16: 16x16 scaling list
* @guint8 scaling_lists_32x32: 32x32 scaling list
*
* Defines the GstH265ScalingList
*/
struct _GstH265ScalingList {
gint16 scaling_list_dc_coef_minus8_16x16[6];
gint16 scaling_list_dc_coef_minus8_32x32[2];
guint8 scaling_lists_4x4 [6][16];
guint8 scaling_lists_8x8 [6][64];
guint8 scaling_lists_16x16 [6][64];
guint8 scaling_lists_32x32 [2][64];
};
/**
* GstH265SPS:
* @id: The ID of the sequence parameter set
* @profile_idc: indicate the profile to which the coded video sequence conforms
*
* H265 Sequence Parameter Set (SPS)
*/
struct _GstH265SPS
{
guint8 id;
GstH265VPS *vps;
guint8 max_sub_layers_minus1;
guint8 temporal_id_nesting_flag;
GstH265ProfileTierLevel profile_tier_level;
guint8 chroma_format_idc;
guint8 separate_colour_plane_flag;
guint16 pic_width_in_luma_samples;
guint16 pic_height_in_luma_samples;
guint8 conformance_window_flag;
/* if conformance_window_flag */
guint32 conf_win_left_offset;
guint32 conf_win_right_offset;
guint32 conf_win_top_offset;
guint32 conf_win_bottom_offset;
guint8 bit_depth_luma_minus8;
guint8 bit_depth_chroma_minus8;
guint8 log2_max_pic_order_cnt_lsb_minus4;
guint8 sub_layer_ordering_info_present_flag;
guint8 max_dec_pic_buffering_minus1[GST_H265_MAX_SUB_LAYERS];
guint8 max_num_reorder_pics[GST_H265_MAX_SUB_LAYERS];
guint8 max_latency_increase_plus1[GST_H265_MAX_SUB_LAYERS];
guint8 log2_min_luma_coding_block_size_minus3;
guint8 log2_diff_max_min_luma_coding_block_size;
guint8 log2_min_transform_block_size_minus2;
guint8 log2_diff_max_min_transform_block_size;
guint8 max_transform_hierarchy_depth_inter;
guint8 max_transform_hierarchy_depth_intra;
guint8 scaling_list_enabled_flag;
/* if scaling_list_enabled_flag */
guint8 scaling_list_data_present_flag;
GstH265ScalingList scaling_list;
guint8 amp_enabled_flag;
guint8 sample_adaptive_offset_enabled_flag;
guint8 pcm_enabled_flag;
/* if pcm_enabled_flag */
guint8 pcm_sample_bit_depth_luma_minus1;
guint8 pcm_sample_bit_depth_chroma_minus1;
guint8 log2_min_pcm_luma_coding_block_size_minus3;
guint8 log2_diff_max_min_pcm_luma_coding_block_size;
guint8 pcm_loop_filter_disabled_flag;
guint8 num_short_term_ref_pic_sets;
GstH265ShortTermRefPicSet short_term_ref_pic_set[65];
guint8 long_term_ref_pics_present_flag;
/* if long_term_ref_pics_present_flag */
guint8 num_long_term_ref_pics_sps;
guint16 lt_ref_pic_poc_lsb_sps[32];
guint8 used_by_curr_pic_lt_sps_flag[32];
guint8 temporal_mvp_enabled_flag;
guint8 strong_intra_smoothing_enabled_flag;
guint8 vui_parameters_present_flag;
/* if vui_parameters_present_flat */
GstH265VUIParams vui_params;
guint8 sps_extension_flag;
/* calculated values */
guint8 chroma_array_type;
gint width, height;
gint fps_num, fps_den;
gboolean valid;
};
/**
* GstH265PPS:
*
* H265 Picture Parameter Set
*/
struct _GstH265PPS
{
guint id;
GstH265SPS *sps;
guint8 dependent_slice_segments_enabled_flag;
guint8 output_flag_present_flag;
guint8 num_extra_slice_header_bits;
guint8 sign_data_hiding_enabled_flag;
guint8 cabac_init_present_flag;
guint8 num_ref_idx_l0_default_active_minus1;
guint8 num_ref_idx_l1_default_active_minus1;
gint8 init_qp_minus26;
guint8 constrained_intra_pred_flag;
guint8 transform_skip_enabled_flag;
guint8 cu_qp_delta_enabled_flag;
/*if cu_qp_delta_enabled_flag */
guint8 diff_cu_qp_delta_depth;
gint8 cb_qp_offset;
gint8 cr_qp_offset;
guint8 slice_chroma_qp_offsets_present_flag;
guint8 weighted_pred_flag;
guint8 weighted_bipred_flag;
guint8 transquant_bypass_enabled_flag;
guint8 tiles_enabled_flag;
guint8 entropy_coding_sync_enabled_flag;
guint8 num_tile_columns_minus1;
guint8 num_tile_rows_minus1;
guint8 uniform_spacing_flag;
guint32 column_width_minus1[19];
guint32 row_height_minus1[21];
guint8 loop_filter_across_tiles_enabled_flag;
guint8 loop_filter_across_slices_enabled_flag;
guint8 deblocking_filter_control_present_flag;
guint8 deblocking_filter_override_enabled_flag;
guint8 deblocking_filter_disabled_flag;
gint8 beta_offset_div2;
gint8 tc_offset_div2;
guint8 scaling_list_data_present_flag;
GstH265ScalingList scaling_list;
guint8 lists_modification_present_flag;
guint8 log2_parallel_merge_level_minus2;
guint8 slice_segment_header_extension_present_flag;
guint8 pps_extension_flag;
gboolean valid;
};
struct _GstH265RefPicListModification
{
guint8 ref_pic_list_modification_flag_l0;
guint32 list_entry_l0[15];
guint8 ref_pic_list_modification_flag_l1;
guint32 list_entry_l1[15];
};
struct _GstH265PredWeightTable
{
guint8 luma_log2_weight_denom;
gint8 delta_chroma_log2_weight_denom;
guint8 luma_weight_l0_flag[15];
guint8 chroma_weight_l0_flag[15];
gint8 delta_luma_weight_l0[15];
gint8 luma_offset_l0[15];
gint8 delta_chroma_weight_l0 [15][2];
gint16 delta_chroma_offset_l0 [15][2];
guint8 luma_weight_l1_flag[15];
guint8 chroma_weight_l1_flag[15];
gint8 delta_luma_weight_l1[15];
gint8 luma_offset_l1[15];
gint8 delta_chroma_weight_l1[15][2];
gint16 delta_chroma_offset_l1[15][2];
};
struct _GstH265SliceHdr
{
guint8 first_slice_segment_in_pic_flag;
guint8 no_output_of_prior_pics_flag;
GstH265PPS *pps;
guint8 dependent_slice_segment_flag;
guint32 segment_address;
guint8 type;
guint8 pic_output_flag;
guint8 colour_plane_id;
guint16 pic_order_cnt_lsb;
guint8 short_term_ref_pic_set_sps_flag;
GstH265ShortTermRefPicSet short_term_ref_pic_sets;
guint8 short_term_ref_pic_set_idx;
guint8 num_long_term_sps;
guint8 num_long_term_pics;
guint8 lt_idx_sps[16];
guint32 poc_lsb_lt[16];
guint8 used_by_curr_pic_lt_flag[16];
guint8 delta_poc_msb_present_flag[16];
guint32 delta_poc_msb_cycle_lt[16];
guint8 temporal_mvp_enabled_flag;
guint8 sao_luma_flag;
guint8 sao_chroma_flag;
guint8 num_ref_idx_active_override_flag;
guint8 num_ref_idx_l0_active_minus1;
guint8 num_ref_idx_l1_active_minus1;
GstH265RefPicListModification ref_pic_list_modification;
guint8 mvd_l1_zero_flag;
guint8 cabac_init_flag;
guint8 collocated_from_l0_flag;
guint8 collocated_ref_idx;
GstH265PredWeightTable pred_weight_table;
guint8 five_minus_max_num_merge_cand;
gint8 qp_delta;
gint8 cb_qp_offset;
gint8 cr_qp_offset;
guint8 deblocking_filter_override_flag;
guint8 deblocking_filter_disabled_flag;
gint8 beta_offset_div2;
gint8 tc_offset_div2;
guint8 loop_filter_across_slices_enabled_flag;
guint32 num_entry_point_offsets;
guint8 offset_len_minus1;
guint32 *entry_point_offset_minus1;
/* calculated values */
gint NumPocTotalCurr;
/* Size of the slice_header() in bits */
guint header_size;
/* Number of emulation prevention bytes (EPB) in this slice_header() */
guint n_emulation_prevention_bytes;
};
struct _GstH265PicTiming
{
guint8 pic_struct;
guint8 source_scan_type;
guint8 duplicate_flag;
guint8 au_cpb_removal_delay_minus1;
guint8 pic_dpb_output_delay;
guint8 pic_dpb_output_du_delay;
guint32 num_decoding_units_minus1;
guint8 du_common_cpb_removal_delay_flag;
guint8 du_common_cpb_removal_delay_increment_minus1;
guint32 *num_nalus_in_du_minus1;
guint8 *du_cpb_removal_delay_increment_minus1;
};
struct _GstH265BufferingPeriod
{
GstH265SPS *sps;
guint8 irap_cpb_params_present_flag;
guint8 cpb_delay_offset;
guint8 dpb_delay_offset;
guint8 concatenation_flag;
guint8 au_cpb_removal_delay_delta_minus1;
/* seq->vui_parameters->nal_hrd_parameters_present_flag */
guint8 nal_initial_cpb_removal_delay[32];
guint8 nal_initial_cpb_removal_offset[32];
guint8 nal_initial_alt_cpb_removal_delay[32];
guint8 nal_initial_alt_cpb_removal_offset [32];
/* seq->vui_parameters->vcl_hrd_parameters_present_flag */
guint8 vcl_initial_cpb_removal_delay[32];
guint8 vcl_initial_cpb_removal_offset[32];
guint8 vcl_initial_alt_cpb_removal_delay[32];
guint8 vcl_initial_alt_cpb_removal_offset[32];
};
struct _GstH265SEIMessage
{
GstH265SEIPayloadType payloadType;
union {
GstH265BufferingPeriod buffering_period;
GstH265PicTiming pic_timing;
/* ... could implement more */
} payload;
};
/**
* GstH265Parser:
*
* H265 NAL Parser (opaque structure).
*/
struct _GstH265Parser
{
/*< private >*/
GstH265VPS vps[GST_H265_MAX_VPS_COUNT];
GstH265SPS sps[GST_H265_MAX_SPS_COUNT];
GstH265PPS pps[GST_H265_MAX_PPS_COUNT];
GstH265VPS *last_vps;
GstH265SPS *last_sps;
GstH265PPS *last_pps;
};
GstH265Parser * gst_h265_parser_new (void);
GstH265ParserResult gst_h265_parser_identify_nalu (GstH265Parser * parser,
const guint8 * data,
guint offset,
gsize size,
GstH265NalUnit * nalu);
GstH265ParserResult gst_h265_parser_identify_nalu_unchecked (GstH265Parser * parser,
const guint8 * data,
guint offset,
gsize size,
GstH265NalUnit * nalu);
GstH265ParserResult gst_h265_parser_identify_nalu_hevc (GstH265Parser * parser,
const guint8 * data,
guint offset,
gsize size,
guint8 nal_length_size,
GstH265NalUnit * nalu);
GstH265ParserResult gst_h265_parser_parse_nal (GstH265Parser * parser,
GstH265NalUnit * nalu);
GstH265ParserResult gst_h265_parser_parse_slice_hdr (GstH265Parser * parser,
GstH265NalUnit * nalu,
GstH265SliceHdr * slice);
GstH265ParserResult gst_h265_parser_parse_vps (GstH265Parser * parser,
GstH265NalUnit * nalu,
GstH265VPS * vps);
GstH265ParserResult gst_h265_parser_parse_sps (GstH265Parser * parser,
GstH265NalUnit * nalu,
GstH265SPS * sps,
gboolean parse_vui_params);
GstH265ParserResult gst_h265_parser_parse_pps (GstH265Parser * parser,
GstH265NalUnit * nalu,
GstH265PPS * pps);
GstH265ParserResult gst_h265_parser_parse_sei (GstH265Parser * parser,
GstH265NalUnit * nalu,
GstH265SEIMessage * sei);
void gst_h265_parser_free (GstH265Parser * parser);
GstH265ParserResult gst_h265_parse_vps (GstH265NalUnit * nalu,
GstH265VPS * vps);
GstH265ParserResult gst_h265_parse_sps (GstH265Parser * parser,
GstH265NalUnit * nalu,
GstH265SPS * sps,
gboolean parse_vui_params);
GstH265ParserResult gst_h265_parse_pps (GstH265Parser * parser,
GstH265NalUnit * nalu,
GstH265PPS * pps);
gboolean gst_h265_slice_hdr_copy (GstH265SliceHdr * dst_slice,
const GstH265SliceHdr * src_slice);
void gst_h265_slice_hdr_free (GstH265SliceHdr * slice_hdr);
gboolean gst_h265_sei_copy (GstH265SEIMessage * dest_sei,
const GstH265SEIMessage * src_sei);
void gst_h265_sei_free (GstH265SEIMessage * sei);
G_END_DECLS
#endif
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