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gstreamer/gst-libs/gst/codecparsers/gstvc1parser.h
Tim-Philipp Müller a05006944a codecparsers: GST_EXPORT -> GST_CODEC_PARSERS_API 
We need different export decorators for the different libs.
For now no actual change though, just rename before the release,
and add prelude headers to define the new decorator to GST_EXPORT.
2018-03-13 12:34:24 +00:00

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/* Gstreamer
* Copyright (C) <2011> Intel
* Copyright (C) <2011> Collabora Ltd.
* Copyright (C) <2011> Thibault Saunier <thibault.saunier@collabora.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_VC1_PARSER_H__
#define __GST_VC1_PARSER_H__
#ifndef GST_USE_UNSTABLE_API
#warning "The VC1 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 MAX_HRD_NUM_LEAKY_BUCKETS 31
/**
* GST_VC1_BFRACTION_BASIS:
* The @bfraction variable should be divided
* by this constant to have the actual value.
*/
#define GST_VC1_BFRACTION_BASIS 840
#define GST_VC1_BFRACTION_RESERVED (GST_VC1_BFRACTION_BASIS + 1)
#define GST_VC1_BFRACTION_PTYPE_BI (GST_VC1_BFRACTION_BASIS + 2)
typedef enum {
GST_VC1_END_OF_SEQ = 0x0A,
GST_VC1_SLICE = 0x0B,
GST_VC1_FIELD = 0x0C,
GST_VC1_FRAME = 0x0D,
GST_VC1_ENTRYPOINT = 0x0E,
GST_VC1_SEQUENCE = 0x0F,
GST_VC1_SLICE_USER = 0x1B,
GST_VC1_FIELD_USER = 0x1C,
GST_VC1_FRAME_USER = 0x1D,
GST_VC1_ENTRY_POINT_USER = 0x1E,
GST_VC1_SEQUENCE_USER = 0x1F
} GstVC1StartCode;
typedef enum {
GST_VC1_PROFILE_SIMPLE,
GST_VC1_PROFILE_MAIN,
GST_VC1_PROFILE_RESERVED,
GST_VC1_PROFILE_ADVANCED
} GstVC1Profile;
typedef enum {
GST_VC1_PARSER_OK,
GST_VC1_PARSER_BROKEN_DATA,
GST_VC1_PARSER_NO_BDU,
GST_VC1_PARSER_NO_BDU_END,
GST_VC1_PARSER_ERROR,
} GstVC1ParserResult;
typedef enum
{
GST_VC1_PICTURE_TYPE_P,
GST_VC1_PICTURE_TYPE_B,
GST_VC1_PICTURE_TYPE_I,
GST_VC1_PICTURE_TYPE_BI,
GST_VC1_PICTURE_TYPE_SKIPPED
} GstVC1PictureType;
typedef enum
{
GST_VC1_LEVEL_LOW = 0, /* Simple/Main profile low level */
GST_VC1_LEVEL_MEDIUM = 2, /* Simple/Main profile medium level */
GST_VC1_LEVEL_HIGH = 4, /* Main profile high level */
GST_VC1_LEVEL_L0 = 0, /* Advanced profile level 0 */
GST_VC1_LEVEL_L1 = 1, /* Advanced profile level 1 */
GST_VC1_LEVEL_L2 = 2, /* Advanced profile level 2 */
GST_VC1_LEVEL_L3 = 3, /* Advanced profile level 3 */
GST_VC1_LEVEL_L4 = 4, /* Advanced profile level 4 */
/* 5 to 7 reserved */
GST_VC1_LEVEL_UNKNOWN = 255 /* Unknown profile */
} GstVC1Level;
typedef enum
{
GST_VC1_QUANTIZER_IMPLICITLY,
GST_VC1_QUANTIZER_EXPLICITLY,
GST_VC1_QUANTIZER_NON_UNIFORM,
GST_VC1_QUANTIZER_UNIFORM
} GstVC1QuantizerSpec;
typedef enum {
GST_VC1_DQPROFILE_FOUR_EDGES,
GST_VC1_DQPROFILE_DOUBLE_EDGES,
GST_VC1_DQPROFILE_SINGLE_EDGE,
GST_VC1_DQPROFILE_ALL_MBS
} GstVC1DQProfile;
typedef enum {
GST_VC1_CONDOVER_NONE,
GST_VC1_CONDOVER_ALL,
GST_VC1_CONDOVER_SELECT
} GstVC1Condover;
/**
* GstVC1MvMode:
*
*/
typedef enum
{
GST_VC1_MVMODE_1MV_HPEL_BILINEAR,
GST_VC1_MVMODE_1MV,
GST_VC1_MVMODE_1MV_HPEL,
GST_VC1_MVMODE_MIXED_MV,
GST_VC1_MVMODE_INTENSITY_COMP
} GstVC1MvMode;
typedef enum
{
GST_VC1_FRAME_PROGRESSIVE = 0x0,
GST_VC1_FRAME_INTERLACE = 0x10,
GST_VC1_FIELD_INTERLACE = 0x11
} GstVC1FrameCodingMode;
typedef struct _GstVC1SeqHdr GstVC1SeqHdr;
typedef struct _GstVC1AdvancedSeqHdr GstVC1AdvancedSeqHdr;
typedef struct _GstVC1HrdParam GstVC1HrdParam;
typedef struct _GstVC1EntryPointHdr GstVC1EntryPointHdr;
typedef struct _GstVC1SeqLayer GstVC1SeqLayer;
typedef struct _GstVC1SeqStructA GstVC1SeqStructA;
typedef struct _GstVC1SeqStructB GstVC1SeqStructB;
typedef struct _GstVC1SeqStructC GstVC1SeqStructC;
/* Pictures Structures */
typedef struct _GstVC1FrameLayer GstVC1FrameLayer;
typedef struct _GstVC1FrameHdr GstVC1FrameHdr;
typedef struct _GstVC1PicAdvanced GstVC1PicAdvanced;
typedef struct _GstVC1PicSimpleMain GstVC1PicSimpleMain;
typedef struct _GstVC1Picture GstVC1Picture;
typedef struct _GstVC1SliceHdr GstVC1SliceHdr;
typedef struct _GstVC1VopDquant GstVC1VopDquant;
typedef struct _GstVC1BitPlanes GstVC1BitPlanes;
typedef struct _GstVC1BDU GstVC1BDU;
struct _GstVC1HrdParam
{
guint8 hrd_num_leaky_buckets;
guint8 bit_rate_exponent;
guint8 buffer_size_exponent;
guint16 hrd_rate[MAX_HRD_NUM_LEAKY_BUCKETS];
guint16 hrd_buffer[MAX_HRD_NUM_LEAKY_BUCKETS];
};
/**
* GstVC1EntryPointHdr:
*
* Structure for entrypoint header, this will be used only in advanced profiles
*/
struct _GstVC1EntryPointHdr
{
guint8 broken_link;
guint8 closed_entry;
guint8 panscan_flag;
guint8 refdist_flag;
guint8 loopfilter;
guint8 fastuvmc;
guint8 extended_mv;
guint8 dquant;
guint8 vstransform;
guint8 overlap;
guint8 quantizer;
guint8 coded_size_flag;
guint16 coded_width;
guint16 coded_height;
guint8 extended_dmv;
guint8 range_mapy_flag;
guint8 range_mapy;
guint8 range_mapuv_flag;
guint8 range_mapuv;
guint8 hrd_full[MAX_HRD_NUM_LEAKY_BUCKETS];
};
/**
* GstVC1AdvancedSeqHdr:
*
* Structure for the advanced profile sequence headers specific parameters.
*/
struct _GstVC1AdvancedSeqHdr
{
GstVC1Level level;
guint8 frmrtq_postproc;
guint8 bitrtq_postproc;
guint8 postprocflag;
guint16 max_coded_width;
guint16 max_coded_height;
guint8 pulldown;
guint8 interlace;
guint8 tfcntrflag;
guint8 finterpflag;
guint8 psf;
guint8 display_ext;
guint16 disp_horiz_size;
guint16 disp_vert_size;
guint8 aspect_ratio_flag;
guint8 aspect_ratio;
guint8 aspect_horiz_size;
guint8 aspect_vert_size;
guint8 framerate_flag;
guint8 framerateind;
guint8 frameratenr;
guint8 frameratedr;
guint16 framerateexp;
guint8 color_format_flag;
guint8 color_prim;
guint8 transfer_char;
guint8 matrix_coef;
guint8 hrd_param_flag;
guint8 colordiff_format;
GstVC1HrdParam hrd_param;
/* computed */
guint framerate; /* Around in fps, 0 if unknown*/
guint bitrate; /* Around in kpbs, 0 if unknown*/
guint par_n;
guint par_d;
guint fps_n;
guint fps_d;
/* The last parsed entry point */
GstVC1EntryPointHdr entrypoint;
};
struct _GstVC1SeqStructA
{
guint32 vert_size;
guint32 horiz_size;
};
struct _GstVC1SeqStructB
{
GstVC1Level level;
guint8 cbr;
guint32 framerate;
/* In simple and main profiles only */
guint32 hrd_buffer;
guint32 hrd_rate;
};
struct _GstVC1SeqStructC
{
GstVC1Profile profile;
/* Only in simple and main profiles */
guint8 frmrtq_postproc;
guint8 bitrtq_postproc;
guint8 res_sprite;
guint8 loop_filter;
guint8 multires;
guint8 fastuvmc;
guint8 extended_mv;
guint8 dquant;
guint8 vstransform;
guint8 overlap;
guint8 syncmarker;
guint8 rangered;
guint8 maxbframes;
guint8 quantizer;
guint8 finterpflag;
/* Computed */
guint framerate; /* Around in fps, 0 if unknown*/
guint bitrate; /* Around in kpbs, 0 if unknown*/
/* This should be filled by user if previously known */
guint16 coded_width;
/* This should be filled by user if previously known */
guint16 coded_height;
/* Wmvp specific */
guint8 wmvp; /* Specify if the stream is wmp or not */
/* In the wmvp case, the framerate is not computed but in the bistream */
guint8 slice_code;
};
struct _GstVC1SeqLayer
{
guint32 numframes;
GstVC1SeqStructA struct_a;
GstVC1SeqStructB struct_b;
GstVC1SeqStructC struct_c;
};
/**
* GstVC1SeqHdr:
*
* Structure for sequence headers in any profile.
*/
struct _GstVC1SeqHdr
{
GstVC1Profile profile;
GstVC1SeqStructC struct_c;
/* calculated */
guint mb_height;
guint mb_width;
guint mb_stride;
GstVC1AdvancedSeqHdr advanced;
};
/**
* GstVC1PicSimpleMain:
* @bfaction: Should be divided by #GST_VC1_BFRACTION_BASIS
* to get the real value.
*/
struct _GstVC1PicSimpleMain
{
guint8 frmcnt;
guint8 mvrange;
guint8 rangeredfrm;
/* I and P pic simple and main profiles only */
guint8 respic;
/* I and BI pic simple and main profiles only */
guint8 transacfrm2;
guint8 bf;
/* B and P pic simple and main profiles only */
guint8 mvmode;
guint8 mvtab;
guint8 ttmbf;
/* P pic simple and main profiles only */
guint8 mvmode2;
guint8 lumscale;
guint8 lumshift;
guint8 cbptab;
guint8 ttfrm;
/* B and BI picture only
* Should be divided by #GST_VC1_BFRACTION_BASIS
* to get the real value. */
guint16 bfraction;
/* Biplane value, those fields only mention the fact
* that the bitplane is in raw mode or not */
guint8 mvtypemb;
guint8 skipmb;
guint8 directmb; /* B pic main profile only */
};
/**
* GstVC1PicAdvanced:
* @bfaction: Should be divided by #GST_VC1_BFRACTION_BASIS
* to get the real value.
*/
struct _GstVC1PicAdvanced
{
GstVC1FrameCodingMode fcm;
guint8 tfcntr;
guint8 rptfrm;
guint8 tff;
guint8 rff;
guint8 ps_present;
guint32 ps_hoffset;
guint32 ps_voffset;
guint16 ps_width;
guint16 ps_height;
guint8 rndctrl;
guint8 uvsamp;
guint8 postproc;
/* B and P picture specific */
guint8 mvrange;
guint8 mvmode;
guint8 mvtab;
guint8 cbptab;
guint8 ttmbf;
guint8 ttfrm;
/* B and BI picture only
* Should be divided by #GST_VC1_BFRACTION_BASIS
* to get the real value. */
guint16 bfraction;
/* ppic */
guint8 mvmode2;
guint8 lumscale;
guint8 lumshift;
/* bipic */
guint8 bf;
guint8 condover;
guint8 transacfrm2;
/* Biplane value, those fields only mention the fact
* that the bitplane is in raw mode or not */
guint8 acpred;
guint8 overflags;
guint8 mvtypemb;
guint8 skipmb;
guint8 directmb;
guint8 forwardmb; /* B pic interlace field only */
/* For interlaced pictures only */
guint8 fieldtx;
/* P and B pictures */
guint8 intcomp;
guint8 dmvrange;
guint8 mbmodetab;
guint8 imvtab;
guint8 icbptab;
guint8 mvbptab2;
guint8 mvbptab4; /* If 4mvswitch in ppic */
/* P picture */
guint8 mvswitch4;
/* For interlaced fields only */
guint16 refdist;
guint8 fptype; /* Raw value */
/* P pic */
guint8 numref;
guint8 reffield;
guint8 lumscale2;
guint8 lumshift2;
guint8 intcompfield;
};
struct _GstVC1BitPlanes
{
guint8 *acpred;
guint8 *fieldtx;
guint8 *overflags;
guint8 *mvtypemb;
guint8 *skipmb;
guint8 *directmb;
guint8 *forwardmb;
guint size; /* Size of the arrays */
};
struct _GstVC1VopDquant
{
guint8 pqdiff;
guint8 abspq;
/* Computed */
guint8 altpquant;
/* if dqant != 2*/
guint8 dquantfrm;
guint8 dqprofile;
/* Boundary edge selection. This represents DQSBEDGE
* if dqprofile == GST_VC1_DQPROFILE_SINGLE_EDGE or
* DQDBEDGE if dqprofile == GST_VC1_DQPROFILE_DOUBLE_EDGE */
guint8 dqbedge;
/* FIXME: remove */
guint8 unused;
/* if dqprofile == GST_VC1_DQPROFILE_ALL_MBS */
guint8 dqbilevel;
};
struct _GstVC1FrameLayer
{
guint8 key;
guint32 framesize;
guint32 timestamp;
/* calculated */
guint32 next_framelayer_offset;
guint8 skiped_p_frame;
};
/**
* GstVC1FrameHdr:
*
* Structure that represent picture in any profile or mode.
* You should look at @ptype and @profile to know what is currently
* in use.
*/
struct _GstVC1FrameHdr
{
/* common fields */
GstVC1PictureType ptype;
guint8 interpfrm;
guint8 halfqp;
guint8 transacfrm;
guint8 transdctab;
guint8 pqindex;
guint8 pquantizer;
/* Computed */
guint8 pquant;
/* Convenience fields */
guint8 profile;
guint8 dquant;
/* If dquant */
GstVC1VopDquant vopdquant;
union {
GstVC1PicSimpleMain simple;
GstVC1PicAdvanced advanced;
} pic;
/* Size of the picture layer in bits */
guint header_size;
};
/**
* GstVC1SliceHdr:
*
* Structure that represents slice layer in advanced profile.
*/
struct _GstVC1SliceHdr
{
guint16 slice_addr;
/* Size of the slice layer in bits */
guint header_size;
};
/**
* GstVC1BDU:
*
* Structure that represents a Bitstream Data Unit.
*/
struct _GstVC1BDU
{
GstVC1StartCode type;
guint size;
guint sc_offset;
guint offset;
guint8 * data;
};
GST_CODEC_PARSERS_API
GstVC1ParserResult gst_vc1_identify_next_bdu (const guint8 *data,
gsize size,
GstVC1BDU *bdu);
GST_CODEC_PARSERS_API
GstVC1ParserResult gst_vc1_parse_sequence_header (const guint8 *data,
gsize size,
GstVC1SeqHdr * seqhdr);
GST_CODEC_PARSERS_API
GstVC1ParserResult gst_vc1_parse_entry_point_header (const guint8 *data,
gsize size,
GstVC1EntryPointHdr * entrypoint,
GstVC1SeqHdr *seqhdr);
GST_CODEC_PARSERS_API
GstVC1ParserResult gst_vc1_parse_sequence_layer (const guint8 *data,
gsize size,
GstVC1SeqLayer * seqlayer);
GST_CODEC_PARSERS_API
GstVC1ParserResult
gst_vc1_parse_sequence_header_struct_a (const guint8 *data,
gsize size,
GstVC1SeqStructA *structa);
GST_CODEC_PARSERS_API
GstVC1ParserResult
gst_vc1_parse_sequence_header_struct_b (const guint8 *data,
gsize size,
GstVC1SeqStructB *structb);
GST_CODEC_PARSERS_API
GstVC1ParserResult
gst_vc1_parse_sequence_header_struct_c (const guint8 *data,
gsize size,
GstVC1SeqStructC *structc);
GST_CODEC_PARSERS_API
GstVC1ParserResult gst_vc1_parse_frame_layer (const guint8 *data,
gsize size,
GstVC1FrameLayer * framelayer);
GST_CODEC_PARSERS_API
GstVC1ParserResult gst_vc1_parse_frame_header (const guint8 *data,
gsize size,
GstVC1FrameHdr * framehdr,
GstVC1SeqHdr *seqhdr,
GstVC1BitPlanes *bitplanes);
GST_CODEC_PARSERS_API
GstVC1ParserResult gst_vc1_parse_field_header (const guint8 *data,
gsize size,
GstVC1FrameHdr * fieldhdr,
GstVC1SeqHdr *seqhdr,
GstVC1BitPlanes *bitplanes);
GST_CODEC_PARSERS_API
GstVC1ParserResult gst_vc1_parse_slice_header (const guint8 *data,
gsize size,
GstVC1SliceHdr *slicehdr,
GstVC1SeqHdr *seqhdr);
GST_CODEC_PARSERS_API
GstVC1BitPlanes * gst_vc1_bitplanes_new (void);
GST_CODEC_PARSERS_API
void gst_vc1_bitplanes_free (GstVC1BitPlanes *bitplanes);
GST_CODEC_PARSERS_API
void gst_vc1_bitplanes_free_1 (GstVC1BitPlanes *bitplanes);
GST_CODEC_PARSERS_API
gboolean gst_vc1_bitplanes_ensure_size (GstVC1BitPlanes *bitplanes,
GstVC1SeqHdr *seqhdr);
G_END_DECLS
#endif
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