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-rw-r--r--libmpeg2/mpeg2_internal.h329
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diff --git a/libmpeg2/mpeg2_internal.h b/libmpeg2/mpeg2_internal.h
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--- a/libmpeg2/mpeg2_internal.h
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-/*
- * mpeg2_internal.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 libmpeg2_changes.diff for the exact changes.
- * detailed changelog at http://svn.mplayerhq.hu/mplayer/trunk/
- * $Id$
- */
-
-#ifndef LIBMPEG2_MPEG2_INTERNAL_H
-#define LIBMPEG2_MPEG2_INTERNAL_H
-
-#define STATE_INTERNAL_NORETURN ((mpeg2_state_t)-1)
-
-/* 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_SHIFT 6
-#define MC_FIELD 1
-#define MC_FRAME 2
-#define MC_16X8 2
-#define MC_DMV 3
-
-/* 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 void mpeg2_mc_fct (uint8_t *, const uint8_t *, int, int);
-
-typedef struct {
- uint8_t * ref[2][3];
- uint8_t ** ref2[2];
- int pmv[2][2];
- int f_code[2];
-} motion_t;
-
-typedef void motion_parser_t (mpeg2_decoder_t * decoder,
- motion_t * motion,
- mpeg2_mc_fct * const * table);
-
-struct mpeg2_decoder_s {
- /* first, state that carries information from one macroblock to the */
- /* next inside a slice, and is never used outside of mpeg2_slice() */
-
- /* 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];
-
- int offset;
- int stride;
- int uv_stride;
- int slice_stride;
- int slice_uv_stride;
- int stride_frame;
- 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;
- motion_parser_t * motion_parser[5];
-
- /* predictor for DC coefficients in intra blocks */
- int16_t dc_dct_pred[3];
-
- /* DCT coefficients */
- int16_t DCTblock[64] ATTR_ALIGN(64);
-
- uint8_t * picture_dest[3];
- void (* convert) (void * convert_id, uint8_t * const * src,
- unsigned int v_offset);
- void * convert_id;
-
- int dmv_offset;
- unsigned int v_offset;
-
- /* now non-slice-specific information */
-
- /* sequence header stuff */
- uint16_t * quantizer_matrix[4];
- uint16_t (* chroma_quantizer[2])[64];
- uint16_t quantizer_prescale[4][32][64];
-
- /* The width and height of the picture snapped to macroblock units */
- int width;
- int height;
- int vertical_position_extension;
- int chroma_format;
-
- /* 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;
- /* 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;
-
- /* XXX: stuff due to xine shit */
- int8_t q_scale_type;
-
- int quantizer_scales[32];
- int quantizer_scale;
- char* quant_store;
- int quant_stride;
-};
-
-typedef struct {
- mpeg2_fbuf_t fbuf;
-} fbuf_alloc_t;
-
-struct mpeg2dec_s {
- mpeg2_decoder_t decoder;
-
- mpeg2_info_t info;
-
- uint32_t shift;
- int is_display_initialized;
- mpeg2_state_t (* action) (struct mpeg2dec_s * mpeg2dec);
- mpeg2_state_t 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;
-
- /* picture tags */
- uint32_t tag_current, tag2_current, tag_previous, tag2_previous;
- int num_tags;
- int bytes_since_tag;
-
- int first;
- int alloc_index_user;
- int alloc_index;
- uint8_t first_decode_slice;
- uint8_t nb_decode_slices;
-
- unsigned int user_data_len;
-
- mpeg2_sequence_t new_sequence;
- mpeg2_sequence_t sequence;
- mpeg2_gop_t new_gop;
- mpeg2_gop_t gop;
- mpeg2_picture_t new_picture;
- mpeg2_picture_t pictures[4];
- mpeg2_picture_t * picture;
- /*const*/ mpeg2_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;
- mpeg2_convert_t * convert;
- void * convert_arg;
- unsigned int convert_id_size;
- int convert_stride;
- void (* convert_start) (void * id, const mpeg2_fbuf_t * fbuf,
- const mpeg2_picture_t * picture,
- const mpeg2_gop_t * gop);
-
- uint8_t * buf_start;
- uint8_t * buf_end;
-
- int16_t display_offset_x, display_offset_y;
-
- int copy_matrix;
- int8_t scaled[4]; /* XXX: MOVED */
- //int8_t q_scale_type, scaled[4];
- uint8_t quantizer_matrix[4][64];
- uint8_t new_quantizer_matrix[4][64];
-
- unsigned char *pending_buffer;
- int pending_length;
-};
-
-typedef struct {
-#if ARCH_PPC
- uint8_t regv[12*16];
-#endif
- int dummy;
-} cpu_state_t;
-
-/* cpu_accel.c */
-uint32_t mpeg2_detect_accel (uint32_t accel);
-
-/* cpu_state.c */
-void mpeg2_cpu_state_init (uint32_t accel);
-
-/* decode.c */
-mpeg2_state_t mpeg2_seek_header (mpeg2dec_t * mpeg2dec);
-mpeg2_state_t mpeg2_parse_header (mpeg2dec_t * mpeg2dec);
-
-/* header.c */
-void mpeg2_header_state_init (mpeg2dec_t * mpeg2dec);
-void mpeg2_reset_info (mpeg2_info_t * info);
-int mpeg2_header_sequence (mpeg2dec_t * mpeg2dec);
-int mpeg2_header_gop (mpeg2dec_t * mpeg2dec);
-mpeg2_state_t 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);
-void mpeg2_header_gop_finalize (mpeg2dec_t * mpeg2dec);
-void mpeg2_header_picture_finalize (mpeg2dec_t * mpeg2dec, uint32_t accels);
-mpeg2_state_t mpeg2_header_slice_start (mpeg2dec_t * mpeg2dec);
-mpeg2_state_t mpeg2_header_end (mpeg2dec_t * mpeg2dec);
-void mpeg2_set_fbuf (mpeg2dec_t * mpeg2dec, int b_type);
-
-/* idct.c */
-extern void mpeg2_idct_init (uint32_t accel);
-extern uint8_t mpeg2_scan_norm[64];
-extern uint8_t mpeg2_scan_alt[64];
-
-/* idct_mmx.c */
-void mpeg2_idct_copy_sse2 (int16_t * block, uint8_t * dest, int stride);
-void mpeg2_idct_add_sse2 (int last, int16_t * block,
- uint8_t * dest, int stride);
-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 (void);
-
-/* motion_comp.c */
-void mpeg2_mc_init (uint32_t accel);
-
-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_vis;
-extern mpeg2_mc_t mpeg2_mc_arm;
-
-#endif /* LIBMPEG2_MPEG2_INTERNAL_H */
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