/* * mpeg2_internal.h * Copyright (C) 2000-2002 Michel Lespinasse * Copyright (C) 1999-2000 Aaron Holtzman * * 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 */ /* macroblock modes */ #define MACROBLOCK_INTRA 1 #define MACROBLOCK_PATTERN 2 #define MACROBLOCK_MOTION_BACKWARD 4 #define MACROBLOCK_MOTION_FORWARD 8 #define MACROBLOCK_QUANT 16 #define DCT_TYPE_INTERLACED 32 /* motion_type */ #define MOTION_TYPE_MASK (3*64) #define MOTION_TYPE_BASE 64 #define MC_FIELD (1*64) #define MC_FRAME (2*64) #define MC_16X8 (2*64) #define MC_DMV (3*64) /* picture structure */ #define TOP_FIELD 1 #define BOTTOM_FIELD 2 #define FRAME_PICTURE 3 /* picture coding type */ #define I_TYPE 1 #define P_TYPE 2 #define B_TYPE 3 #define D_TYPE 4 typedef struct { uint8_t * ref[2][3]; uint8_t ** ref2[2]; int pmv[2][2]; int f_code[2]; } motion_t; struct decoder_s { /* first, state that carries information from one macroblock to the */ /* next inside a slice, and is never used outside of mpeg2_slice() */ /* DCT coefficients - should be kept aligned ! */ int16_t DCTblock[64]; /* bit parsing stuff */ uint32_t bitstream_buf; /* current 32 bit working set */ int bitstream_bits; /* used bits in working set */ const uint8_t * bitstream_ptr; /* buffer with stream data */ uint8_t * dest[3]; uint8_t * picture_dest[3]; void (* convert) (void * fbuf_id, uint8_t * const * src, unsigned int v_offset); void * fbuf_id; int offset; int stride; int uv_stride; unsigned int limit_x; unsigned int limit_y_16; unsigned int limit_y_8; unsigned int limit_y; /* Motion vectors */ /* The f_ and b_ correspond to the forward and backward motion */ /* predictors */ motion_t b_motion; motion_t f_motion; /* predictor for DC coefficients in intra blocks */ int16_t dc_dct_pred[3]; int quantizer_scale; /* remove */ int dmv_offset; /* remove */ unsigned int v_offset; /* remove */ /* now non-slice-specific information */ /* sequence header stuff */ uint8_t intra_quantizer_matrix [64]; uint8_t non_intra_quantizer_matrix [64]; /* The width and height of the picture snapped to macroblock units */ int width; int height; int vertical_position_extension; /* picture header stuff */ /* what type of picture this is (I, P, B, D) */ int coding_type; /* picture coding extension stuff */ /* quantization factor for intra dc coefficients */ int intra_dc_precision; /* top/bottom/both fields */ int picture_structure; /* bool to indicate all predictions are frame based */ int frame_pred_frame_dct; /* bool to indicate whether intra blocks have motion vectors */ /* (for concealment) */ int concealment_motion_vectors; /* bit to indicate which quantization table to use */ int q_scale_type; /* bool to use different vlc tables */ int intra_vlc_format; /* used for DMV MC */ int top_field_first; /* stuff derived from bitstream */ /* pointer to the zigzag scan we're supposed to be using */ const uint8_t * scan; int second_field; int mpeg1; /* for MPlayer: */ char* quant_store; int quant_stride; }; typedef struct { fbuf_t fbuf; } fbuf_alloc_t; struct mpeg2dec_s { decoder_t decoder; mpeg2_info_t info; uint32_t shift; int is_display_initialized; int (* action) (struct mpeg2dec_s * mpeg2dec); int state; uint32_t ext_state; /* allocated in init - gcc has problems allocating such big structures */ uint8_t * chunk_buffer; /* pointer to start of the current chunk */ uint8_t * chunk_start; /* pointer to current position in chunk_buffer */ uint8_t * chunk_ptr; /* last start code ? */ uint8_t code; /* PTS */ uint32_t pts_current, pts_previous; int num_pts; int bytes_since_pts; int first; int alloc_index_user; int alloc_index; uint8_t first_decode_slice; uint8_t nb_decode_slices; sequence_t new_sequence; sequence_t sequence; picture_t pictures[4]; picture_t * picture; /*const*/ fbuf_t * fbuf[3]; /* 0: current fbuf, 1-2: prediction fbufs */ fbuf_alloc_t fbuf_alloc[3]; int custom_fbuf; uint8_t * yuv_buf[3][3]; int yuv_index; void * convert_id; int convert_size[3]; void (* convert_start) (void * id, uint8_t * const * dest, int flags); void (* convert_copy) (void * id, uint8_t * const * src, unsigned int v_offset); uint8_t * buf_start; uint8_t * buf_end; int16_t display_offset_x, display_offset_y; }; typedef struct { #ifdef ARCH_PPC uint8_t regv[12*16]; #endif int dummy; } cpu_state_t; /* alloc.c */ #define ALLOC_MPEG2DEC 0 #define ALLOC_CHUNK 1 #define ALLOC_YUV 2 #define ALLOC_CONVERT_ID 3 #define ALLOC_CONVERTED 4 void * mpeg2_malloc (int size, int reason); void mpeg2_free (void * buf); /* cpu_accel.c */ uint32_t mpeg2_detect_accel (void); /* cpu_state.c */ void mpeg2_cpu_state_init (uint32_t accel); /* decode.c */ int mpeg2_seek_sequence (mpeg2dec_t * mpeg2dec); int mpeg2_seek_header (mpeg2dec_t * mpeg2dec); int mpeg2_parse_header (mpeg2dec_t * mpeg2dec); /* header.c */ void mpeg2_header_state_init (mpeg2dec_t * mpeg2dec); int mpeg2_header_sequence (mpeg2dec_t * mpeg2dec); int mpeg2_header_gop (mpeg2dec_t * mpeg2dec); int mpeg2_header_picture_start (mpeg2dec_t * mpeg2dec); int mpeg2_header_picture (mpeg2dec_t * mpeg2dec); int mpeg2_header_extension (mpeg2dec_t * mpeg2dec); int mpeg2_header_user_data (mpeg2dec_t * mpeg2dec); void mpeg2_header_sequence_finalize (mpeg2dec_t * mpeg2dec); int mpeg2_header_slice_start (mpeg2dec_t * mpeg2dec); int mpeg2_header_end (mpeg2dec_t * mpeg2dec); void mpeg2_set_fbuf (mpeg2dec_t * mpeg2dec, int coding_type); /* idct.c */ void mpeg2_idct_init (uint32_t accel); /* idct_mlib.c */ void mpeg2_idct_add_mlib (int last, int16_t * block, uint8_t * dest, int stride); void mpeg2_idct_copy_mlib_non_ieee (int16_t * block, uint8_t * dest, int stride); void mpeg2_idct_add_mlib_non_ieee (int last, int16_t * block, uint8_t * dest, int stride); /* idct_mmx.c */ void mpeg2_idct_copy_mmxext (int16_t * block, uint8_t * dest, int stride); void mpeg2_idct_add_mmxext (int last, int16_t * block, uint8_t * dest, int stride); void mpeg2_idct_copy_mmx (int16_t * block, uint8_t * dest, int stride); void mpeg2_idct_add_mmx (int last, int16_t * block, uint8_t * dest, int stride); void mpeg2_idct_mmx_init (void); /* idct_altivec.c */ void mpeg2_idct_copy_altivec (int16_t * block, uint8_t * dest, int stride); void mpeg2_idct_add_altivec (int last, int16_t * block, uint8_t * dest, int stride); void mpeg2_idct_altivec_init (void); /* idct_alpha.c */ void mpeg2_idct_copy_mvi (int16_t * block, uint8_t * dest, int stride); void mpeg2_idct_add_mvi (int last, int16_t * block, uint8_t * dest, int stride); void mpeg2_idct_copy_alpha (int16_t * block, uint8_t * dest, int stride); void mpeg2_idct_add_alpha (int last, int16_t * block, uint8_t * dest, int stride); void mpeg2_idct_alpha_init(int no_mvi); /* motion_comp.c */ void mpeg2_mc_init (uint32_t accel); typedef void mpeg2_mc_fct (uint8_t *, const uint8_t *, int, int); typedef struct { mpeg2_mc_fct * put [8]; mpeg2_mc_fct * avg [8]; } mpeg2_mc_t; #define MPEG2_MC_EXTERN(x) mpeg2_mc_t mpeg2_mc_##x = { \ {MC_put_o_16_##x, MC_put_x_16_##x, MC_put_y_16_##x, MC_put_xy_16_##x, \ MC_put_o_8_##x, MC_put_x_8_##x, MC_put_y_8_##x, MC_put_xy_8_##x}, \ {MC_avg_o_16_##x, MC_avg_x_16_##x, MC_avg_y_16_##x, MC_avg_xy_16_##x, \ MC_avg_o_8_##x, MC_avg_x_8_##x, MC_avg_y_8_##x, MC_avg_xy_8_##x} \ }; extern mpeg2_mc_t mpeg2_mc_c; extern mpeg2_mc_t mpeg2_mc_mmx; extern mpeg2_mc_t mpeg2_mc_mmxext; extern mpeg2_mc_t mpeg2_mc_3dnow; extern mpeg2_mc_t mpeg2_mc_altivec; extern mpeg2_mc_t mpeg2_mc_alpha; extern mpeg2_mc_t mpeg2_mc_mlib;