/* * mpeg2.h * Copyright (C) 2000-2003 Michel Lespinasse <walken@zoy.org> * Copyright (C) 1999-2000 Aaron Holtzman <aholtzma@ess.engr.uvic.ca> * * This file is part of mpeg2dec, a free MPEG-2 video stream decoder. * See http://libmpeg2.sourceforge.net/ for updates. * * mpeg2dec is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * mpeg2dec 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA * * Modified for use with MPlayer, see libmpeg-0.4.1.diff for the exact changes. * detailed changelog at http://svn.mplayerhq.hu/mplayer/trunk/ * $Id: mpeg2.h,v 1.2 2008/03/03 08:11:38 dsqiu Exp $ */#ifndef MPEG2_H#define MPEG2_H#define MPEG2_VERSION(a,b,c) (((a)<<16)|((b)<<8)|(c))#define MPEG2_RELEASE MPEG2_VERSION (0, 4, 1)	/* 0.4.1 */#define SEQ_FLAG_MPEG2 1#define SEQ_FLAG_CONSTRAINED_PARAMETERS 2#define SEQ_FLAG_PROGRESSIVE_SEQUENCE 4#define SEQ_FLAG_LOW_DELAY 8#define SEQ_FLAG_COLOUR_DESCRIPTION 16#define SEQ_MASK_VIDEO_FORMAT 0xe0#define SEQ_VIDEO_FORMAT_COMPONENT 0#define SEQ_VIDEO_FORMAT_PAL 0x20#define SEQ_VIDEO_FORMAT_NTSC 0x40#define SEQ_VIDEO_FORMAT_SECAM 0x60#define SEQ_VIDEO_FORMAT_MAC 0x80#define SEQ_VIDEO_FORMAT_UNSPECIFIED 0xa0typedef struct mpeg2_sequence_s {    unsigned int width, height;    unsigned int chroma_width, chroma_height;    unsigned int byte_rate;    unsigned int vbv_buffer_size;    uint32_t flags;    unsigned int picture_width, picture_height;    unsigned int display_width, display_height;    unsigned int pixel_width, pixel_height;    unsigned int frame_period;    uint8_t profile_level_id;    uint8_t colour_primaries;    uint8_t transfer_characteristics;    uint8_t matrix_coefficients;} mpeg2_sequence_t;#define GOP_FLAG_DROP_FRAME 1#define GOP_FLAG_BROKEN_LINK 2#define GOP_FLAG_CLOSED_GOP 4typedef struct mpeg2_gop_s {    uint8_t hours;    uint8_t minutes;    uint8_t seconds;    uint8_t pictures;    uint32_t flags;} mpeg2_gop_t;#define PIC_MASK_CODING_TYPE 7#define PIC_FLAG_CODING_TYPE_I 1#define PIC_FLAG_CODING_TYPE_P 2#define PIC_FLAG_CODING_TYPE_B 3#define PIC_FLAG_CODING_TYPE_D 4#define PIC_FLAG_TOP_FIELD_FIRST 8#define PIC_FLAG_PROGRESSIVE_FRAME 16#define PIC_FLAG_COMPOSITE_DISPLAY 32#define PIC_FLAG_SKIP 64#define PIC_FLAG_TAGS 128#define PIC_FLAG_REPEAT_FIRST_FIELD 256#define PIC_MASK_COMPOSITE_DISPLAY 0xfffff000typedef struct mpeg2_picture_s {    unsigned int temporal_reference;    unsigned int nb_fields;    uint32_t tag, tag2;    uint32_t flags;    struct {	int x, y;    } display_offset[3];} mpeg2_picture_t;typedef struct mpeg2_fbuf_s {    uint8_t * buf[3];    void * id;} mpeg2_fbuf_t;typedef struct mpeg2_info_s {    const mpeg2_sequence_t * sequence;    const mpeg2_gop_t * gop;    const mpeg2_picture_t * current_picture;    const mpeg2_picture_t * current_picture_2nd;    const mpeg2_fbuf_t * current_fbuf;    const mpeg2_picture_t * display_picture;    const mpeg2_picture_t * display_picture_2nd;    const mpeg2_fbuf_t * display_fbuf;    const mpeg2_fbuf_t * discard_fbuf;    const uint8_t * user_data;    unsigned int user_data_len;} mpeg2_info_t;typedef struct mpeg2dec_s mpeg2dec_t;typedef struct mpeg2_decoder_s mpeg2_decoder_t;typedef enum {    STATE_BUFFER = 0,    STATE_SEQUENCE = 1,    STATE_SEQUENCE_REPEATED = 2,    STATE_GOP = 3,    STATE_PICTURE = 4,    STATE_SLICE_1ST = 5,    STATE_PICTURE_2ND = 6,    STATE_SLICE = 7,    STATE_END = 8,    STATE_INVALID = 9,    STATE_INVALID_END = 10} mpeg2_state_t;typedef struct mpeg2_convert_init_s {    unsigned int id_size;    unsigned int buf_size[3];    void (* start) (void * id, const mpeg2_fbuf_t * fbuf,		    const mpeg2_picture_t * picture, const mpeg2_gop_t * gop);    void (* copy) (void * id, uint8_t * const * src, unsigned int v_offset);} mpeg2_convert_init_t;typedef enum {    MPEG2_CONVERT_SET = 0,    MPEG2_CONVERT_STRIDE = 1,    MPEG2_CONVERT_START = 2} mpeg2_convert_stage_t;typedef int mpeg2_convert_t (int stage, void * id,			     const mpeg2_sequence_t * sequence, int stride,			     uint32_t accel, void * arg,			     mpeg2_convert_init_t * result);int mpeg2_convert (mpeg2dec_t * mpeg2dec, mpeg2_convert_t convert, void * arg);int mpeg2_stride (mpeg2dec_t * mpeg2dec, int stride);void mpeg2_set_buf (mpeg2dec_t * mpeg2dec, uint8_t * buf[3], void * id);void mpeg2_custom_fbuf (mpeg2dec_t * mpeg2dec, int custom_fbuf);#define MPEG2_ACCEL_X86_MMX 1#define MPEG2_ACCEL_X86_3DNOW 2#define MPEG2_ACCEL_X86_MMXEXT 4#define MPEG2_ACCEL_X86_SSE2 8#define MPEG2_ACCEL_PPC_ALTIVEC 1#define MPEG2_ACCEL_ALPHA 1#define MPEG2_ACCEL_ALPHA_MVI 2#define MPEG2_ACCEL_SPARC_VIS 1#define MPEG2_ACCEL_SPARC_VIS2 2#define MPEG2_ACCEL_DETECT 0x80000000uint32_t mpeg2_accel (uint32_t accel);mpeg2dec_t * mpeg2_init (void);const mpeg2_info_t * mpeg2_info (mpeg2dec_t * mpeg2dec);void mpeg2_close (mpeg2dec_t * mpeg2dec);void mpeg2_buffer (mpeg2dec_t * mpeg2dec, uint8_t * start, uint8_t * end);int mpeg2_getpos (mpeg2dec_t * mpeg2dec);mpeg2_state_t mpeg2_parse (mpeg2dec_t * mpeg2dec);void mpeg2_reset (mpeg2dec_t * mpeg2dec, int full_reset);void mpeg2_skip (mpeg2dec_t * mpeg2dec, int skip);void mpeg2_slice_region (mpeg2dec_t * mpeg2dec, int start, int end);void mpeg2_tag_picture (mpeg2dec_t * mpeg2dec, uint32_t tag, uint32_t tag2);void mpeg2_init_fbuf (mpeg2_decoder_t * decoder, uint8_t * current_fbuf[3],		      uint8_t * forward_fbuf[3], uint8_t * backward_fbuf[3]);void mpeg2_slice (mpeg2_decoder_t * decoder, int code, const uint8_t * buffer);typedef enum {    MPEG2_ALLOC_MPEG2DEC = 0,    MPEG2_ALLOC_CHUNK = 1,    MPEG2_ALLOC_YUV = 2,    MPEG2_ALLOC_CONVERT_ID = 3,    MPEG2_ALLOC_CONVERTED = 4} mpeg2_alloc_t;void * mpeg2_malloc (unsigned size, mpeg2_alloc_t reason);void mpeg2_free (void * buf);void mpeg2_malloc_hooks (void * mmalloc (unsigned, mpeg2_alloc_t),			 int mfree (void *));#endif /* MPEG2_H */