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gstreamer/gst-libs/gst/codecparsers/gsth264parser.h
Jan Schmidt 8899a471e3 h264parse lib: Remove the SPS parse_vui_params flag 
The SPS parsing functions take a parse_vui_param flag
to skip VUI parsing, but there's no indication in the output
SPS struct that the VUI was skipped.

The only caller that ever passed FALSE seems to be the
important gst_h264_parser_parse_nal() function, meaning - so the
cached SPS were always silently invalid. That needs changing
anyway, meaning noone ever passes FALSE.

I don't see any use for saving a few microseconds in
order to silently produce garbage, and since this is still
unstable API, let's remove the parse_vui_param.
2019-07-05 00:17:59 +10:00

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/* Gstreamer
* Copyright (C) <2011> Intel Corporation
* Copyright (C) <2011> Collabora Ltd.
* Copyright (C) <2011> Thibault Saunier <thibault.saunier@collabora.com>
*
* Some bits C-c,C-v'ed and s/4/3 from h264parse and videoparsers/h264parse.c:
* Copyright (C) <2010> Mark Nauwelaerts <mark.nauwelaerts@collabora.co.uk>
* Copyright (C) <2010> Collabora Multimedia
* Copyright (C) <2010> Nokia Corporation
*
* (C) 2005 Michal Benes <michal.benes@itonis.tv>
* (C) 2008 Wim Taymans <wim.taymans@gmail.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_H264_PARSER_H__
#define __GST_H264_PARSER_H__
#ifndef GST_USE_UNSTABLE_API
#warning "The H.264 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>
#include <gst/codecparsers/codecparsers-prelude.h>
G_BEGIN_DECLS
#define GST_H264_MAX_SPS_COUNT 32
#define GST_H264_MAX_PPS_COUNT 256
#define GST_H264_MAX_VIEW_COUNT 1024
#define GST_H264_MAX_VIEW_ID (GST_H264_MAX_VIEW_COUNT - 1)
#define GST_H264_IS_P_SLICE(slice) (((slice)->type % 5) == GST_H264_P_SLICE)
#define GST_H264_IS_B_SLICE(slice) (((slice)->type % 5) == GST_H264_B_SLICE)
#define GST_H264_IS_I_SLICE(slice) (((slice)->type % 5) == GST_H264_I_SLICE)
#define GST_H264_IS_SP_SLICE(slice) (((slice)->type % 5) == GST_H264_SP_SLICE)
#define GST_H264_IS_SI_SLICE(slice) (((slice)->type % 5) == GST_H264_SI_SLICE)
/**
* GST_H264_IS_SVC_NALU:
* @nalu: a #GstH264NalUnit
*
* Check if @nalu is a scalable extension NAL unit.
*
* Since: 1.6
*/
#define GST_H264_IS_SVC_NALU(nalu) \
((nalu)->extension_type == GST_H264_NAL_EXTENSION_SVC)
/**
* GST_H264_IS_MVC_NALU:
* @nalu: a #GstH264NalUnit
*
* Check if @nalu is a multiview extension NAL unit.
*
* Since: 1.6
*/
#define GST_H264_IS_MVC_NALU(nalu) \
((nalu)->extension_type == GST_H264_NAL_EXTENSION_MVC)
/**
* GstH264Profile:
* @GST_H264_PROFILE_BASELINE: Baseline profile (A.2.1)
* @GST_H264_PROFILE_MAIN: Main profile (A.2.2)
* @GST_H264_PROFILE_EXTENDED: Extended profile (A.2.3)
* @GST_H264_PROFILE_HIGH: High profile (A.2.4),
* or Progressive High profile (A.2.4.1), or Constrained High profile (A.2.4.2)
* depending on constraint_set4_flag and constraint_set5_flag
* @GST_H264_PROFILE_HIGH10: High 10 profile (A.2.5) or High 10 Intra
* profile (A.2.8), or Progressive High 10 profile (A.2.5.1) depending on
* constraint_set3_flag and constraint_set4_flag
* @GST_H264_PROFILE_HIGH_422: High 4:2:2 profile (A.2.6) or High
* 4:2:2 Intra profile (A.2.9), depending on constraint_set3_flag
* @GST_H264_PROFILE_HIGH_444: High 4:4:4 Predictive profile (A.2.7)
* or High 4:4:4 Intra profile (A.2.10), depending on the value of
* constraint_set3_flag
* @GST_H264_PROFILE_MULTIVIEW_HIGH: Multiview High profile (H.10.1.1)
* @GST_H264_PROFILE_STEREO_HIGH: Stereo High profile (H.10.1.2)
* @GST_H264_PROFILE_SCALABLE_BASELINE: Scalable Baseline profile (G.10.1.1)
* @GST_H264_PROFILE_SCALABLE_HIGH: Scalable High profile (G.10.1.2)
* or Scalable High Intra profile (G.10.1.3), depending on the value
* of constraint_set3_flag
*
* H.264 Profiles.
*
* Since: 1.2
*/
typedef enum {
GST_H264_PROFILE_BASELINE = 66,
GST_H264_PROFILE_MAIN = 77,
GST_H264_PROFILE_EXTENDED = 88,
GST_H264_PROFILE_HIGH = 100,
GST_H264_PROFILE_HIGH10 = 110,
GST_H264_PROFILE_HIGH_422 = 122,
GST_H264_PROFILE_HIGH_444 = 244,
GST_H264_PROFILE_MULTIVIEW_HIGH = 118,
GST_H264_PROFILE_STEREO_HIGH = 128,
GST_H264_PROFILE_SCALABLE_BASELINE = 83,
GST_H264_PROFILE_SCALABLE_HIGH = 86
} GstH264Profile;
/**
* GstH264NalUnitType:
* @GST_H264_NAL_UNKNOWN: Unknown nal type
* @GST_H264_NAL_SLICE: Slice nal
* @GST_H264_NAL_SLICE_DPA: DPA slice nal
* @GST_H264_NAL_SLICE_DPB: DPB slice nal
* @GST_H264_NAL_SLICE_DPC: DPC slice nal
* @GST_H264_NAL_SLICE_IDR: DPR slice nal
* @GST_H264_NAL_SEI: Supplemental enhancement information (SEI) nal unit
* @GST_H264_NAL_SPS: Sequence parameter set (SPS) nal unit
* @GST_H264_NAL_PPS: Picture parameter set (PPS) nal unit
* @GST_H264_NAL_AU_DELIMITER: Access unit (AU) delimiter nal unit
* @GST_H264_NAL_SEQ_END: End of sequence nal unit
* @GST_H264_NAL_STREAM_END: End of stream nal unit
* @GST_H264_NAL_FILLER_DATA: Filler data nal lunit
* @GST_H264_NAL_SPS_EXT: Sequence parameter set (SPS) extension NAL unit
* @GST_H264_NAL_PREFIX_UNIT: Prefix NAL unit
* @GST_H264_NAL_SUBSET_SPS: Subset sequence parameter set (SSPS) NAL unit
* @GST_H264_NAL_DEPTH_SPS: Depth parameter set (DPS) NAL unit
* @GST_H264_NAL_SLICE_AUX: Auxiliary coded picture without partitioning NAL unit
* @GST_H264_NAL_SLICE_EXT: Coded slice extension NAL unit
* @GST_H264_NAL_SLICE_DEPTH: Coded slice extension for depth or 3D-AVC texture view
*
* Indicates the type of H264 Nal Units
*/
typedef enum
{
GST_H264_NAL_UNKNOWN = 0,
GST_H264_NAL_SLICE = 1,
GST_H264_NAL_SLICE_DPA = 2,
GST_H264_NAL_SLICE_DPB = 3,
GST_H264_NAL_SLICE_DPC = 4,
GST_H264_NAL_SLICE_IDR = 5,
GST_H264_NAL_SEI = 6,
GST_H264_NAL_SPS = 7,
GST_H264_NAL_PPS = 8,
GST_H264_NAL_AU_DELIMITER = 9,
GST_H264_NAL_SEQ_END = 10,
GST_H264_NAL_STREAM_END = 11,
GST_H264_NAL_FILLER_DATA = 12,
GST_H264_NAL_SPS_EXT = 13,
GST_H264_NAL_PREFIX_UNIT = 14,
GST_H264_NAL_SUBSET_SPS = 15,
GST_H264_NAL_DEPTH_SPS = 16,
GST_H264_NAL_SLICE_AUX = 19,
GST_H264_NAL_SLICE_EXT = 20,
GST_H264_NAL_SLICE_DEPTH = 21
} GstH264NalUnitType;
/**
* GstH264NalUnitExtensionType:
* @GST_H264_NAL_EXTENSION_NONE: No NAL unit header extension is available
* @GST_H264_NAL_EXTENSION_SVC: NAL unit header extension for SVC (Annex G)
* @GST_H264_NAL_EXTENSION_MVC: NAL unit header extension for MVC (Annex H)
*
* Indicates the type of H.264 NAL unit extension.
*
* Since: 1.6
*/
typedef enum
{
GST_H264_NAL_EXTENSION_NONE = 0,
GST_H264_NAL_EXTENSION_SVC,
GST_H264_NAL_EXTENSION_MVC,
} GstH264NalUnitExtensionType;
/**
* GstH264ParserResult:
* @GST_H264_PARSER_OK: The parsing succeeded
* @GST_H264_PARSER_BROKEN_DATA: The data to parse is broken
* @GST_H264_PARSER_BROKEN_LINK: The link to structure needed for the parsing couldn't be found
* @GST_H264_PARSER_ERROR: An error occurred when parsing
* @GST_H264_PARSER_NO_NAL: No NAL unit found during the parsing
* @GST_H264_PARSER_NO_NAL_END: Start of the NAL unit found, but not the end.
* This will be returned if no start/sync marker for the next NAL unit was
* found. In this case the parser will assume that the end of the data is
* also the end of the NAL unit. Whether this assumption is correct or not
* depends on the context, which only the caller can know, which is why a
* special result value is returned in this case. If the data is NAL-aligned
* then #GST_H264_PARSER_NO_NAL_END can be treated just like
* #GST_H264_PARSER_OK. If the data is not guaranteed to be NAL-aligned,
* then the caller probably wants to collect more data until there's another
* sync marker or the end of the stream has been reached.
*
* The result of parsing H264 data.
*/
typedef enum
{
GST_H264_PARSER_OK,
GST_H264_PARSER_BROKEN_DATA,
GST_H264_PARSER_BROKEN_LINK,
GST_H264_PARSER_ERROR,
GST_H264_PARSER_NO_NAL,
GST_H264_PARSER_NO_NAL_END
} GstH264ParserResult;
/**
* GstH264FramePackingType:
* @GST_H264_FRAME_PACKING_NONE: A complete 2D frame without any frame packing
* @GST_H264_FRAME_PACKING_CHECKERBOARD_INTERLEAVING: Checkerboard
* based interleaving
* @GST_H264_FRAME_PACKING_COLUMN_INTERLEAVING: Column based interleaving
* @GST_H264_FRAME_PACKING_ROW_INTERLEAVING: Row based interleaving
* @GST_H264_FRAME_PACKING_SIDE_BY_SIDE: Side-by-side packing
* @GST_H264_FRMAE_PACKING_TOP_BOTTOM: Top-Bottom packing
* @GST_H264_FRAME_PACKING_TEMPORAL_INTERLEAVING: Temporal interleaving
*
* Frame packing arrangement types.
*
* Since: 1.6
*/
typedef enum
{
GST_H264_FRAME_PACKING_NONE = 6,
GST_H264_FRAME_PACKING_CHECKERBOARD_INTERLEAVING = 0,
GST_H264_FRAME_PACKING_COLUMN_INTERLEAVING = 1,
GST_H264_FRAME_PACKING_ROW_INTERLEAVING = 2,
GST_H264_FRAME_PACKING_SIDE_BY_SIDE = 3,
GST_H264_FRMAE_PACKING_TOP_BOTTOM = 4,
GST_H264_FRAME_PACKING_TEMPORAL_INTERLEAVING = 5
} GstH264FramePackingType;
/**
* GstH264SEIPayloadType:
* @GST_H264_SEI_BUF_PERIOD: Buffering Period SEI Message
* @GST_H264_SEI_PIC_TIMING: Picture Timing SEI Message
* @GST_H264_SEI_REGISTERED_USER_DATA: Registered user data (D.2.5)
* @GST_H264_SEI_RECOVERY_POINT: Recovery Point SEI Message (D.2.7)
* @GST_H264_SEI_STEREO_VIDEO_INFO: stereo video info SEI message (Since: 1.6)
* @GST_H264_SEI_FRAME_PACKING: Frame Packing Arrangement (FPA) message that
* contains the 3D arrangement for stereoscopic 3D video (Since: 1.6)
* ...
*
* The type of SEI message.
*/
typedef enum
{
GST_H264_SEI_BUF_PERIOD = 0,
GST_H264_SEI_PIC_TIMING = 1,
GST_H264_SEI_REGISTERED_USER_DATA = 4,
GST_H264_SEI_RECOVERY_POINT = 6,
GST_H264_SEI_STEREO_VIDEO_INFO = 21,
GST_H264_SEI_FRAME_PACKING = 45
/* and more... */
} GstH264SEIPayloadType;
/**
* GstH264SEIPicStructType:
* @GST_H264_SEI_PIC_STRUCT_FRAME: Picture is a frame
* @GST_H264_SEI_PIC_STRUCT_TOP_FIELD: Top field of frame
* @GST_H264_SEI_PIC_STRUCT_BOTTOM_FIELD: Bottom field of frame
* @GST_H264_SEI_PIC_STRUCT_TOP_BOTTOM: Top bottom field of frame
* @GST_H264_SEI_PIC_STRUCT_BOTTOM_TOP: bottom top field of frame
* @GST_H264_SEI_PIC_STRUCT_TOP_BOTTOM_TOP: top bottom top field of frame
* @GST_H264_SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM: bottom top bottom field of frame
* @GST_H264_SEI_PIC_STRUCT_FRAME_DOUBLING: indicates that the frame should
* be displayed two times consecutively
* @GST_H264_SEI_PIC_STRUCT_FRAME_TRIPLING: indicates that the frame should be
* displayed three times consecutively
*
* SEI pic_struct type
*/
typedef enum
{
GST_H264_SEI_PIC_STRUCT_FRAME = 0,
GST_H264_SEI_PIC_STRUCT_TOP_FIELD = 1,
GST_H264_SEI_PIC_STRUCT_BOTTOM_FIELD = 2,
GST_H264_SEI_PIC_STRUCT_TOP_BOTTOM = 3,
GST_H264_SEI_PIC_STRUCT_BOTTOM_TOP = 4,
GST_H264_SEI_PIC_STRUCT_TOP_BOTTOM_TOP = 5,
GST_H264_SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM = 6,
GST_H264_SEI_PIC_STRUCT_FRAME_DOUBLING = 7,
GST_H264_SEI_PIC_STRUCT_FRAME_TRIPLING = 8
} GstH264SEIPicStructType;
/**
* GstH264SliceType:
*
* Type of Picture slice
*/
typedef enum
{
GST_H264_P_SLICE = 0,
GST_H264_B_SLICE = 1,
GST_H264_I_SLICE = 2,
GST_H264_SP_SLICE = 3,
GST_H264_SI_SLICE = 4,
GST_H264_S_P_SLICE = 5,
GST_H264_S_B_SLICE = 6,
GST_H264_S_I_SLICE = 7,
GST_H264_S_SP_SLICE = 8,
GST_H264_S_SI_SLICE = 9
} GstH264SliceType;
/**
* GstH264CtType
*
* Mapping of ct_type to source picture scan
*
* Since: 1.16
*/
typedef enum
{
GST_H264_CT_TYPE_PROGRESSIVE = 0,
GST_H264_CT_TYPE_INTERLACED = 1,
GST_H264_CT_TYPE_UNKNOWN = 2,
} GstCtType;
typedef struct _GstH264NalParser GstH264NalParser;
typedef struct _GstH264NalUnit GstH264NalUnit;
typedef struct _GstH264NalUnitExtensionMVC GstH264NalUnitExtensionMVC;
typedef struct _GstH264SPSExtMVCView GstH264SPSExtMVCView;
typedef struct _GstH264SPSExtMVCLevelValue GstH264SPSExtMVCLevelValue;
typedef struct _GstH264SPSExtMVCLevelValueOp GstH264SPSExtMVCLevelValueOp;
typedef struct _GstH264SPSExtMVC GstH264SPSExtMVC;
typedef struct _GstH264SPS GstH264SPS;
typedef struct _GstH264PPS GstH264PPS;
typedef struct _GstH264HRDParams GstH264HRDParams;
typedef struct _GstH264VUIParams GstH264VUIParams;
typedef struct _GstH264RefPicListModification GstH264RefPicListModification;
typedef struct _GstH264DecRefPicMarking GstH264DecRefPicMarking;
typedef struct _GstH264RefPicMarking GstH264RefPicMarking;
typedef struct _GstH264PredWeightTable GstH264PredWeightTable;
typedef struct _GstH264SliceHdr GstH264SliceHdr;
typedef struct _GstH264ClockTimestamp GstH264ClockTimestamp;
typedef struct _GstH264PicTiming GstH264PicTiming;
typedef struct _GstH264RegisteredUserData GstH264RegisteredUserData;
typedef struct _GstH264BufferingPeriod GstH264BufferingPeriod;
typedef struct _GstH264RecoveryPoint GstH264RecoveryPoint;
typedef struct _GstH264StereoVideoInfo GstH264StereoVideoInfo;
typedef struct _GstH264FramePacking GstH264FramePacking;
typedef struct _GstH264SEIMessage GstH264SEIMessage;
/**
* GstH264NalUnitExtensionMVC:
* @non_idr_flag: If equal to 0, it specifies that the current access
* unit is an IDR access unit
* @priority_id: The priority identifier for the NAL unit
* @view_id: The view identifier for the NAL unit
* @temporal_id: The temporal identifier for the NAL unit
* @anchor_pic_flag: If equal to 1, it specifies that the current
* access unit is an anchor access unit
* @inter_view_flag: If equal to 0, it specifies that the current view
* component is not used for inter-view prediction by any other view
* component in the current access unit
*
* Since: 1.6
*/
struct _GstH264NalUnitExtensionMVC
{
guint8 non_idr_flag;
guint8 priority_id;
guint16 view_id;
guint8 temporal_id;
guint8 anchor_pic_flag;
guint8 inter_view_flag;
};
/**
* GstH264NalUnit:
* @ref_idc: not equal to 0 specifies that the content of the NAL unit
* contains a sequence parameter set, a sequence parameter set
* extension, a subset sequence parameter set, a picture parameter
* set, a slice of a reference picture, a slice data partition of a
* reference picture, or a prefix NAL unit preceding a slice of a
* reference picture.
* @type: A #GstH264NalUnitType
* @idr_pic_flag: calculated idr_pic_flag
* @size: The size of the NAL unit starting from @offset, thus
* including the header bytes. e.g. @type (nal_unit_type),
* but not the start code.
* @offset: The offset of the first byte of the NAL unit header,
* just after the start code.
* @sc_offset: The offset of the first byte of the start code of
* the NAL unit.
* @valid: If the NAL unit is valid, which means it has
* already been parsed
* @data: The data array from which the NAL unit has been parsed,
* into which the offset and sc_offset apply.
* @header_bytes: The size of the NALU header in bytes. The NALU
* header is the 1-byte type code, and for extension / prefix NALs
* includes the extension header bytes. @offset + @header_bytes is
* therefore the first byte of the actual packet payload.
* (Since: 1.6)
* @extension_type: the extension type for prefix NAL/MVC/SVC
* (Since: 1.6)
*
* Structure defining the NAL unit headers
*/
struct _GstH264NalUnit
{
guint16 ref_idc;
guint16 type;
/* calculated values */
guint8 idr_pic_flag;
guint size;
guint offset;
guint sc_offset;
gboolean valid;
guint8 *data;
guint8 header_bytes;
guint8 extension_type;
union {
GstH264NalUnitExtensionMVC mvc;
} extension;
};
/**
* GstH264HRDParams:
* @cpb_cnt_minus1: plus 1 specifies the number of alternative
* CPB specifications in the bitstream
* @bit_rate_scale: specifies the maximum input bit rate of the
* SchedSelIdx-th CPB
* @cpb_size_scale: specifies the CPB size of the SchedSelIdx-th CPB
* @guint32 bit_rate_value_minus1: specifies the maximum input bit rate for the
* SchedSelIdx-th CPB
* @cpb_size_value_minus1: is used together with cpb_size_scale to specify the
* SchedSelIdx-th CPB size
* @cbr_flag: Specifies if running in constant or intermittent bit rate mode
* @initial_cpb_removal_delay_length_minus1: specifies the length in bits of
* the cpb_removal_delay syntax element
* @cpb_removal_delay_length_minus1: specifies the length in bits of the
* dpb_output_delay syntax element
* @dpb_output_delay_length_minus1: >0 specifies the length in bits of the time_offset syntax element.
* =0 specifies that the time_offset syntax element is not present
* @time_offset_length: Length of the time offset
*
* Defines the HRD parameters
*/
struct _GstH264HRDParams
{
guint8 cpb_cnt_minus1;
guint8 bit_rate_scale;
guint8 cpb_size_scale;
guint32 bit_rate_value_minus1[32];
guint32 cpb_size_value_minus1[32];
guint8 cbr_flag[32];
guint8 initial_cpb_removal_delay_length_minus1;
guint8 cpb_removal_delay_length_minus1;
guint8 dpb_output_delay_length_minus1;
guint8 time_offset_length;
};
/**
* GstH264VUIParams:
* @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 otherwise
* @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 otherwise
* @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
* @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
* @fixed_frame_rate_flag: %TRUE indicates that the temporal distance between the HRD output times
* of any two consecutive pictures in output order is constrained as specified in the spec, %FALSE
* otherwise.
* @nal_hrd_parameters_present_flag: %TRUE if NAL HRD parameters exist in the bitstream
* @vcl_hrd_parameters_present_flag: %TRUE if VCL HRD parameters exist in the bitstream
* @low_delay_hrd_flag: specifies the HRD operational mode
* @pic_struct_present_flag: %TRUE specifies that picture timing SEI messages are present or not
* @bitstream_restriction_flag: %TRUE specifies that the following coded video sequence bitstream restriction
* parameters are 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
* @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_mb_denom: indicates the maximum number of coded bits of macroblock_layer
* @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
* @num_reorder_frames: indicates the maximum number of frames, complementary field pairs,
* or non-paired fields that precede any frame,
* @max_dec_frame_buffering: specifies the required size of the HRD decoded picture buffer in
* units of frame buffers.
*
* The structure representing the VUI parameters.
*/
struct _GstH264VUIParams
{
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 timing_info_present_flag;
/* if timing_info_present_flag */
guint32 num_units_in_tick;
guint32 time_scale;
guint8 fixed_frame_rate_flag;
guint8 nal_hrd_parameters_present_flag;
/* if nal_hrd_parameters_present_flag */
GstH264HRDParams nal_hrd_parameters;
guint8 vcl_hrd_parameters_present_flag;
/* if vcl_hrd_parameters_present_flag */
GstH264HRDParams vcl_hrd_parameters;
guint8 low_delay_hrd_flag;
guint8 pic_struct_present_flag;
guint8 bitstream_restriction_flag;
/* if bitstream_restriction_flag */
guint8 motion_vectors_over_pic_boundaries_flag;
guint32 max_bytes_per_pic_denom;
guint32 max_bits_per_mb_denom;
guint32 log2_max_mv_length_horizontal;
guint32 log2_max_mv_length_vertical;
guint32 num_reorder_frames;
guint32 max_dec_frame_buffering;
/* calculated values */
guint par_n;
guint par_d;
};
/**
* GstH264SPSExtMVCView:
* @num_anchor_refs_l0: specifies the number of view components for
* inter-view prediction in the initialized RefPicList0 in decoding
* anchor view components.
* @anchor_ref_l0: specifies the view_id for inter-view prediction in
* the initialized RefPicList0 in decoding anchor view components.
* @num_anchor_refs_l1: specifies the number of view components for
* inter-view prediction in the initialized RefPicList1 in decoding
* anchor view components.
* @anchor_ref_l1: specifies the view_id for inter-view prediction in
* the initialized RefPicList1 in decoding anchor view components.
* @num_non_anchor_refs_l0: specifies the number of view components
* for inter-view prediction in the initialized RefPicList0 in
* decoding non-anchor view components.
* @non_anchor_ref_l0: specifies the view_id for inter-view prediction
* in the initialized RefPicList0 in decoding non-anchor view
* components.
* @num_non_anchor_refs_l1: specifies the number of view components
* for inter-view prediction in the initialized RefPicList1 in
* decoding non-anchor view components.
* @non_anchor_ref_l1: specifies the view_id for inter-view prediction
* in the initialized RefPicList1 in decoding non-anchor view
* components.
*
* Represents inter-view dependency relationships for the coded video
* sequence.
*
* Since: 1.6
*/
struct _GstH264SPSExtMVCView
{
guint16 view_id;
guint8 num_anchor_refs_l0;
guint16 anchor_ref_l0[15];
guint8 num_anchor_refs_l1;
guint16 anchor_ref_l1[15];
guint8 num_non_anchor_refs_l0;
guint16 non_anchor_ref_l0[15];
guint8 num_non_anchor_refs_l1;
guint16 non_anchor_ref_l1[15];
};
/**
* GstH264SPSExtMVCLevelValueOp:
*
* Represents an operation point for the coded video sequence.
*
* Since: 1.6
*/
struct _GstH264SPSExtMVCLevelValueOp
{
guint8 temporal_id;
guint16 num_target_views_minus1;
guint16 *target_view_id;
guint16 num_views_minus1;
};
/**
* GstH264SPSExtMVCLevelValue:
* @level_idc: specifies the level value signalled for the coded video
* sequence
* @num_applicable_ops_minus1: plus 1 specifies the number of
* operation points to which the level indicated by level_idc applies
* @applicable_op: specifies the applicable operation point
*
* Represents level values for a subset of the operation points for
* the coded video sequence.
*
* Since: 1.6
*/
struct _GstH264SPSExtMVCLevelValue
{
guint8 level_idc;
guint16 num_applicable_ops_minus1;
GstH264SPSExtMVCLevelValueOp *applicable_op;
};
/**
* GstH264SPSExtMVC:
* @num_views_minus1: plus 1 specifies the maximum number of coded
* views in the coded video sequence
* @view: array of #GstH264SPSExtMVCView
* @num_level_values_signalled_minus1: plus 1 specifies the number of
* level values signalled for the coded video sequence.
* @level_value: array of #GstH264SPSExtMVCLevelValue
*
* Represents the parsed `seq_parameter_set_mvc_extension()`.
*
* Since: 1.6
*/
struct _GstH264SPSExtMVC
{
guint16 num_views_minus1;
GstH264SPSExtMVCView *view;
guint8 num_level_values_signalled_minus1;
GstH264SPSExtMVCLevelValue *level_value;
};
/**
* GstH264SPS:
* @id: The ID of the sequence parameter set
* @profile_idc: indicate the profile to which the coded video sequence conforms
*
* H264 Sequence Parameter Set (SPS)
*/
struct _GstH264SPS
{
gint id;
guint8 profile_idc;
guint8 constraint_set0_flag;
guint8 constraint_set1_flag;
guint8 constraint_set2_flag;
guint8 constraint_set3_flag;
guint8 constraint_set4_flag;
guint8 constraint_set5_flag;
guint8 level_idc;
guint8 chroma_format_idc;
guint8 separate_colour_plane_flag;
guint8 bit_depth_luma_minus8;
guint8 bit_depth_chroma_minus8;
guint8 qpprime_y_zero_transform_bypass_flag;
guint8 scaling_matrix_present_flag;
guint8 scaling_lists_4x4[6][16];
guint8 scaling_lists_8x8[6][64];
guint8 log2_max_frame_num_minus4;
guint8 pic_order_cnt_type;
/* if pic_order_cnt_type == 0 */
guint8 log2_max_pic_order_cnt_lsb_minus4;
/* else if pic_order_cnt_type == 1 */
guint8 delta_pic_order_always_zero_flag;
gint32 offset_for_non_ref_pic;
gint32 offset_for_top_to_bottom_field;
guint8 num_ref_frames_in_pic_order_cnt_cycle;
gint32 offset_for_ref_frame[255];
guint32 num_ref_frames;
guint8 gaps_in_frame_num_value_allowed_flag;
guint32 pic_width_in_mbs_minus1;
guint32 pic_height_in_map_units_minus1;
guint8 frame_mbs_only_flag;
guint8 mb_adaptive_frame_field_flag;
guint8 direct_8x8_inference_flag;
guint8 frame_cropping_flag;
/* if frame_cropping_flag */
guint32 frame_crop_left_offset;
guint32 frame_crop_right_offset;
guint32 frame_crop_top_offset;
guint32 frame_crop_bottom_offset;
guint8 vui_parameters_present_flag;
/* if vui_parameters_present_flag */
GstH264VUIParams vui_parameters;
/* calculated values */
guint8 chroma_array_type;
guint32 max_frame_num;
gint width, height;
gint crop_rect_width, crop_rect_height;
gint crop_rect_x, crop_rect_y;
gint fps_num_removed, fps_den_removed; /* FIXME: remove */
gboolean valid;
/* Subset SPS extensions */
guint8 extension_type;
union {
GstH264SPSExtMVC mvc;
} extension;
};
/**
* GstH264PPS:
*
* H264 Picture Parameter Set
*/
struct _GstH264PPS
{
gint id;
GstH264SPS *sequence;
guint8 entropy_coding_mode_flag;
guint8 pic_order_present_flag;
guint32 num_slice_groups_minus1;
/* if num_slice_groups_minus1 > 0 */
guint8 slice_group_map_type;
/* and if slice_group_map_type == 0 */
guint32 run_length_minus1[8];
/* or if slice_group_map_type == 2 */
guint32 top_left[8];
guint32 bottom_right[8];
/* or if slice_group_map_type == (3, 4, 5) */
guint8 slice_group_change_direction_flag;
guint32 slice_group_change_rate_minus1;
/* or if slice_group_map_type == 6 */
guint32 pic_size_in_map_units_minus1;
guint8 *slice_group_id;
guint8 num_ref_idx_l0_active_minus1;
guint8 num_ref_idx_l1_active_minus1;
guint8 weighted_pred_flag;
guint8 weighted_bipred_idc;
gint8 pic_init_qp_minus26;
gint8 pic_init_qs_minus26;
gint8 chroma_qp_index_offset;
guint8 deblocking_filter_control_present_flag;
guint8 constrained_intra_pred_flag;
guint8 redundant_pic_cnt_present_flag;
guint8 transform_8x8_mode_flag;
guint8 scaling_lists_4x4[6][16];
guint8 scaling_lists_8x8[6][64];
guint8 second_chroma_qp_index_offset;
gboolean valid;
};
struct _GstH264RefPicListModification
{
guint8 modification_of_pic_nums_idc;
union
{
/* if modification_of_pic_nums_idc == 0 || 1 */
guint32 abs_diff_pic_num_minus1;
/* if modification_of_pic_nums_idc == 2 */
guint32 long_term_pic_num;
/* if modification_of_pic_nums_idc == 4 || 5 */
guint32 abs_diff_view_idx_minus1;
} value;
};
struct _GstH264PredWeightTable
{
guint8 luma_log2_weight_denom;
guint8 chroma_log2_weight_denom;
gint16 luma_weight_l0[32];
gint8 luma_offset_l0[32];
/* if seq->ChromaArrayType != 0 */
gint16 chroma_weight_l0[32][2];
gint8 chroma_offset_l0[32][2];
/* if slice->slice_type % 5 == 1 */
gint16 luma_weight_l1[32];
gint8 luma_offset_l1[32];
/* and if seq->ChromaArrayType != 0 */
gint16 chroma_weight_l1[32][2];
gint8 chroma_offset_l1[32][2];
};
struct _GstH264RefPicMarking
{
guint8 memory_management_control_operation;
guint32 difference_of_pic_nums_minus1;
guint32 long_term_pic_num;
guint32 long_term_frame_idx;
guint32 max_long_term_frame_idx_plus1;
};
struct _GstH264DecRefPicMarking
{
/* if slice->nal_unit.IdrPicFlag */
guint8 no_output_of_prior_pics_flag;
guint8 long_term_reference_flag;
guint8 adaptive_ref_pic_marking_mode_flag;
GstH264RefPicMarking ref_pic_marking[10];
guint8 n_ref_pic_marking;
};
struct _GstH264SliceHdr
{
guint32 first_mb_in_slice;
guint32 type;
GstH264PPS *pps;
/* if seq->separate_colour_plane_flag */
guint8 colour_plane_id;
guint16 frame_num;
guint8 field_pic_flag;
guint8 bottom_field_flag;
/* if nal_unit.type == 5 */
guint16 idr_pic_id;
/* if seq->pic_order_cnt_type == 0 */
guint16 pic_order_cnt_lsb;
/* if seq->pic_order_present_flag && !field_pic_flag */
gint32 delta_pic_order_cnt_bottom;
gint32 delta_pic_order_cnt[2];
guint8 redundant_pic_cnt;
/* if slice_type == B_SLICE */
guint8 direct_spatial_mv_pred_flag;
guint8 num_ref_idx_l0_active_minus1;
guint8 num_ref_idx_l1_active_minus1;
guint8 ref_pic_list_modification_flag_l0;
guint8 n_ref_pic_list_modification_l0;
GstH264RefPicListModification ref_pic_list_modification_l0[32];
guint8 ref_pic_list_modification_flag_l1;
guint8 n_ref_pic_list_modification_l1;
GstH264RefPicListModification ref_pic_list_modification_l1[32];
GstH264PredWeightTable pred_weight_table;
/* if nal_unit.ref_idc != 0 */
GstH264DecRefPicMarking dec_ref_pic_marking;
guint8 cabac_init_idc;
gint8 slice_qp_delta;
gint8 slice_qs_delta;
guint8 disable_deblocking_filter_idc;
gint8 slice_alpha_c0_offset_div2;
gint8 slice_beta_offset_div2;
guint16 slice_group_change_cycle;
/* calculated values */
guint32 max_pic_num;
gboolean valid;
/* 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 _GstH264ClockTimestamp
{
guint8 ct_type;
guint8 nuit_field_based_flag;
guint8 counting_type;
guint8 discontinuity_flag;
guint8 cnt_dropped_flag;
guint8 n_frames;
guint8 seconds_flag;
guint8 seconds_value;
guint8 minutes_flag;
guint8 minutes_value;
guint8 hours_flag;
guint8 hours_value;
guint32 time_offset;
};
/**
* GstH264FramePacking:
*
* Since: 1.6
*/
struct _GstH264FramePacking
{
guint32 frame_packing_id;
guint8 frame_packing_cancel_flag;
guint8 frame_packing_type; /* GstH264FramePackingType */
guint8 quincunx_sampling_flag;
guint8 content_interpretation_type;
guint8 spatial_flipping_flag;
guint8 frame0_flipped_flag;
guint8 field_views_flag;
guint8 current_frame_is_frame0_flag;
guint8 frame0_self_contained_flag;
guint8 frame1_self_contained_flag;
guint8 frame0_grid_position_x;
guint8 frame0_grid_position_y;
guint8 frame1_grid_position_x;
guint8 frame1_grid_position_y;
guint16 frame_packing_repetition_period;
};
/**
* GstH264StereoVideoInfo:
*
* Since: 1.6
*/
struct _GstH264StereoVideoInfo
{
guint8 field_views_flag;
guint8 top_field_is_left_view_flag;
guint8 current_frame_is_left_view_flag;
guint8 next_frame_is_second_view_flag;
guint8 left_view_self_contained_flag;
guint8 right_view_self_contained_flag;
};
struct _GstH264PicTiming
{
guint32 cpb_removal_delay;
guint32 dpb_output_delay;
guint8 pic_struct_present_flag;
/* if pic_struct_present_flag */
guint8 pic_struct;
guint8 clock_timestamp_flag[3];
GstH264ClockTimestamp clock_timestamp[3];
};
struct _GstH264RegisteredUserData
{
guint8 country_code;
guint8 country_code_extension;
const guint8 *data;
guint size;
};
struct _GstH264BufferingPeriod
{
GstH264SPS *sps;
/* seq->vui_parameters->nal_hrd_parameters_present_flag */
guint32 nal_initial_cpb_removal_delay[32];
guint32 nal_initial_cpb_removal_delay_offset[32];
/* seq->vui_parameters->vcl_hrd_parameters_present_flag */
guint32 vcl_initial_cpb_removal_delay[32];
guint32 vcl_initial_cpb_removal_delay_offset[32];
};
struct _GstH264RecoveryPoint
{
guint32 recovery_frame_cnt;
guint8 exact_match_flag;
guint8 broken_link_flag;
guint8 changing_slice_group_idc;
};
struct _GstH264SEIMessage
{
GstH264SEIPayloadType payloadType;
union {
GstH264BufferingPeriod buffering_period;
GstH264PicTiming pic_timing;
GstH264RegisteredUserData registered_user_data;
GstH264RecoveryPoint recovery_point;
GstH264StereoVideoInfo stereo_video_info;
GstH264FramePacking frame_packing;
/* ... could implement more */
} payload;
};
/**
* GstH264NalParser:
*
* H264 NAL Parser (opaque structure).
*/
struct _GstH264NalParser
{
/*< private >*/
GstH264SPS sps[GST_H264_MAX_SPS_COUNT];
GstH264PPS pps[GST_H264_MAX_PPS_COUNT];
GstH264SPS *last_sps;
GstH264PPS *last_pps;
};
GST_CODEC_PARSERS_API
GstH264NalParser *gst_h264_nal_parser_new (void);
GST_CODEC_PARSERS_API
GstH264ParserResult gst_h264_parser_identify_nalu (GstH264NalParser *nalparser,
const guint8 *data, guint offset,
gsize size, GstH264NalUnit *nalu);
GST_CODEC_PARSERS_API
GstH264ParserResult gst_h264_parser_identify_nalu_unchecked (GstH264NalParser *nalparser,
const guint8 *data, guint offset,
gsize size, GstH264NalUnit *nalu);
GST_CODEC_PARSERS_API
GstH264ParserResult gst_h264_parser_identify_nalu_avc (GstH264NalParser *nalparser, const guint8 *data,
guint offset, gsize size, guint8 nal_length_size,
GstH264NalUnit *nalu);
GST_CODEC_PARSERS_API
GstH264ParserResult gst_h264_parser_parse_nal (GstH264NalParser *nalparser,
GstH264NalUnit *nalu);
GST_CODEC_PARSERS_API
GstH264ParserResult gst_h264_parser_parse_slice_hdr (GstH264NalParser *nalparser, GstH264NalUnit *nalu,
GstH264SliceHdr *slice, gboolean parse_pred_weight_table,
gboolean parse_dec_ref_pic_marking);
GST_CODEC_PARSERS_API
GstH264ParserResult gst_h264_parser_parse_subset_sps (GstH264NalParser *nalparser, GstH264NalUnit *nalu,
GstH264SPS *sps);
GST_CODEC_PARSERS_API
GstH264ParserResult gst_h264_parser_parse_sps (GstH264NalParser *nalparser, GstH264NalUnit *nalu,
GstH264SPS *sps);
GST_CODEC_PARSERS_API
GstH264ParserResult gst_h264_parser_parse_pps (GstH264NalParser *nalparser,
GstH264NalUnit *nalu, GstH264PPS *pps);
GST_CODEC_PARSERS_API
GstH264ParserResult gst_h264_parser_parse_sei (GstH264NalParser *nalparser,
GstH264NalUnit *nalu, GArray ** messages);
GST_CODEC_PARSERS_API
void gst_h264_nal_parser_free (GstH264NalParser *nalparser);
GST_CODEC_PARSERS_API
GstH264ParserResult gst_h264_parse_subset_sps (GstH264NalUnit *nalu,
GstH264SPS *sps);
GST_CODEC_PARSERS_API
GstH264ParserResult gst_h264_parse_sps (GstH264NalUnit *nalu,
GstH264SPS *sps);
GST_CODEC_PARSERS_API
GstH264ParserResult gst_h264_parse_pps (GstH264NalParser *nalparser,
GstH264NalUnit *nalu, GstH264PPS *pps);
GST_CODEC_PARSERS_API
void gst_h264_sps_clear (GstH264SPS *sps);
GST_CODEC_PARSERS_API
void gst_h264_pps_clear (GstH264PPS *pps);
GST_CODEC_PARSERS_API
void gst_h264_quant_matrix_8x8_get_zigzag_from_raster (guint8 out_quant[64],
const guint8 quant[64]);
GST_CODEC_PARSERS_API
void gst_h264_quant_matrix_8x8_get_raster_from_zigzag (guint8 out_quant[64],
const guint8 quant[64]);
GST_CODEC_PARSERS_API
void gst_h264_quant_matrix_4x4_get_zigzag_from_raster (guint8 out_quant[16],
const guint8 quant[16]);
GST_CODEC_PARSERS_API
void gst_h264_quant_matrix_4x4_get_raster_from_zigzag (guint8 out_quant[16],
const guint8 quant[16]);
GST_CODEC_PARSERS_API
void gst_h264_video_calculate_framerate (const GstH264SPS * sps, guint field_pic_flag,
guint pic_struct, gint * fps_num, gint * fps_den);
G_END_DECLS
#endif
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