-fPIC compileable
[libav.git] / libavcodec / mpegvideo.h
CommitLineData
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1/*
2 * Generic DCT based hybrid video encoder
ff4ec49e 3 * Copyright (c) 2000, 2001, 2002 Fabrice Bellard.
de6d9b64 4 *
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5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
de6d9b64 9 *
ff4ec49e 10 * This library is distributed in the hope that it will be useful,
de6d9b64 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
de6d9b64 14 *
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15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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18 */
19
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20#ifndef AVCODEC_MPEGVIDEO_H
21#define AVCODEC_MPEGVIDEO_H
22
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23#include "dsputil.h"
24
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25#define FRAME_SKIPED 100 // return value for header parsers if frame is not coded
26
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27enum OutputFormat {
28 FMT_MPEG1,
29 FMT_H263,
9dbcbd92 30 FMT_MJPEG,
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31};
32
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33#define EDGE_WIDTH 16
34
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35#define MPEG_BUF_SIZE (16 * 1024)
36
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37#define QMAT_SHIFT_MMX 16
38#define QMAT_SHIFT 22
2f349de2 39
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40#define MAX_FCODE 7
41#define MAX_MV 2048
1e491e29 42
0d1e9246 43#define MAX_PICTURE_COUNT 15
45870f57 44
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45#define ME_MAP_SIZE 64
46#define ME_MAP_SHIFT 3
47#define ME_MAP_MV_BITS 11
48
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49/* run length table */
50#define MAX_RUN 64
51#define MAX_LEVEL 64
52
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53#define I_TYPE FF_I_TYPE // Intra
54#define P_TYPE FF_P_TYPE // Predicted
55#define B_TYPE FF_B_TYPE // Bi-dir predicted
56#define S_TYPE FF_S_TYPE // S(GMC)-VOP MPEG4
57
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58typedef struct Predictor{
59 double coeff;
60 double count;
61 double decay;
62} Predictor;
63
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64typedef struct RateControlEntry{
65 int pict_type;
c5d309f2 66 float qscale;
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67 int mv_bits;
68 int i_tex_bits;
69 int p_tex_bits;
70 int misc_bits;
ff4ec49e 71 UINT64 expected_bits;
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72 int new_pict_type;
73 float new_qscale;
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74 int mc_mb_var_sum;
75 int mb_var_sum;
76 int i_count;
77 int f_code;
78 int b_code;
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79}RateControlEntry;
80
81typedef struct RateControlContext{
82 FILE *stats_file;
3aa102be 83 int num_entries; /* number of RateControlEntries */
8b4c7dbc 84 RateControlEntry *entry;
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85 int buffer_index; /* amount of bits in the video/audio buffer */
86 Predictor pred[5];
87 double short_term_qsum; /* sum of recent qscales */
88 double short_term_qcount; /* count of recent qscales */
23e54f69 89 double pass1_rc_eq_output_sum;/* sum of the output of the rc equation, this is used for normalization */
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90 double pass1_wanted_bits; /* bits which should have been outputed by the pass1 code (including complexity init) */
91 double last_qscale;
947ac25a 92 double last_qscale_for[5]; /* last qscale for a specific pict type, used for max_diff & ipb factor stuff */
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93 int last_mc_mb_var_sum;
94 int last_mb_var_sum;
95 UINT64 i_cplx_sum[5];
96 UINT64 p_cplx_sum[5];
97 UINT64 mv_bits_sum[5];
98 UINT64 qscale_sum[5];
99 int frame_count[5];
947ac25a 100 int last_non_b_pict_type;
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101}RateControlContext;
102
2ad1516a 103typedef struct ScanTable{
7801d21d 104 const UINT8 *scantable;
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105 UINT8 permutated[64];
106 UINT8 raster_end[64];
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107#ifdef ARCH_POWERPC
108 /* Used by dct_quantise_alitvec to find last-non-zero */
109 UINT8 __align8 inverse[64];
110#endif
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111} ScanTable;
112
1e491e29 113typedef struct Picture{
492cd3a9 114 FF_COMMON_FRAME
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115
116 int mb_var_sum; /* sum of MB variance for current frame */
117 int mc_mb_var_sum; /* motion compensated MB variance for current frame */
118 uint16_t *mb_var; /* Table for MB variances */
119 uint16_t *mc_mb_var; /* Table for motion compensated MB variances */
120 uint8_t *mb_mean; /* Table for MB luminance */
67725183 121 int32_t *mb_cmp_score; /* Table for MB cmp scores, for mb decission */
0d1e9246 122 int b_frame_score; /* */
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123} Picture;
124
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125typedef struct ParseContext{
126 UINT8 *buffer;
127 int index;
128 int last_index;
129 int buffer_size;
130 int state;
131 int frame_start_found;
132} ParseContext;
133
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134struct MpegEncContext;
135
136typedef struct MotionEstContext{
137 int skip; /* set if ME is skiped for the current MB */
138 int co_located_mv[4][2]; /* mv from last p frame for direct mode ME */
139 int direct_basis_mv[4][2];
140 uint8_t *scratchpad; /* data area for the me algo, so that the ME doesnt need to malloc/free */
141 uint32_t *map; /* map to avoid duplicate evaluations */
142 uint32_t *score_map; /* map to store the scores */
143 int map_generation;
826f429a 144 int pre_penalty_factor;
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145 int penalty_factor;
146 int sub_penalty_factor;
67725183 147 int mb_penalty_factor;
f931ff7b 148 int pre_pass; /* = 1 for the pre pass */
826f429a 149 int dia_size;
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150 UINT16 (*mv_penalty)[MAX_MV*2+1]; /* amount of bits needed to encode a MV */
151 int (*sub_motion_search)(struct MpegEncContext * s,
152 int *mx_ptr, int *my_ptr, int dmin,
153 int xmin, int ymin, int xmax, int ymax,
154 int pred_x, int pred_y, Picture *ref_picture,
155 int n, int size, uint16_t * const mv_penalty);
156 int (*motion_search[7])(struct MpegEncContext * s, int block,
157 int *mx_ptr, int *my_ptr,
158 int P[10][2], int pred_x, int pred_y,
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159 int xmin, int ymin, int xmax, int ymax, Picture *ref_picture, int16_t (*last_mv)[2],
160 int ref_mv_scale, uint16_t * const mv_penalty);
161 int (*pre_motion_search)(struct MpegEncContext * s, int block,
162 int *mx_ptr, int *my_ptr,
163 int P[10][2], int pred_x, int pred_y,
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164 int xmin, int ymin, int xmax, int ymax, Picture *ref_picture, int16_t (*last_mv)[2],
165 int ref_mv_scale, uint16_t * const mv_penalty);
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166 int (*get_mb_score)(struct MpegEncContext * s, int mx, int my, int pred_x, int pred_y, Picture *ref_picture,
167 uint16_t * const mv_penalty);
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168}MotionEstContext;
169
de6d9b64 170typedef struct MpegEncContext {
58f26ba9 171 struct AVCodecContext *avctx;
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172 /* the following parameters must be initialized before encoding */
173 int width, height; /* picture size. must be a multiple of 16 */
174 int gop_size;
175 int frame_rate; /* number of frames per second */
176 int intra_only; /* if true, only intra pictures are generated */
177 int bit_rate; /* wanted bit rate */
9cdd6a24 178 int bit_rate_tolerance; /* amount of +- bits (>0)*/
de6d9b64 179 enum OutputFormat out_format; /* output format */
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180 int h263_pred; /* use mpeg4/h263 ac/dc predictions */
181
182/* the following codec id fields are deprecated in favor of codec_id */
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183 int h263_plus; /* h263 plus headers */
184 int h263_rv10; /* use RV10 variation for H263 */
d7e9533a 185 int h263_msmpeg4; /* generate MSMPEG4 compatible stream (deprecated, use msmpeg4_version instead)*/
de6d9b64 186 int h263_intel; /* use I263 intel h263 header */
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187
188 int codec_id; /* see CODEC_ID_xxx */
de6d9b64 189 int fixed_qscale; /* fixed qscale if non zero */
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190 float qcompress; /* amount of qscale change between easy & hard scenes (0.0-1.0) */
191 float qblur; /* amount of qscale smoothing over time (0.0-1.0) */
192 int qmin; /* min qscale */
193 int qmax; /* max qscale */
194 int max_qdiff; /* max qscale difference between frames */
3bb4e23a 195 int encoding; /* true if we are encoding (vs decoding) */
ba6802de 196 int flags; /* AVCodecContext.flags (HQ, MV4, ...) */
9dbcbd92 197 int max_b_frames; /* max number of b-frames for encoding */
8b4c7dbc 198 int b_frame_strategy;
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199 int luma_elim_threshold;
200 int chroma_elim_threshold;
201 int strict_std_compliance; /* strictly follow the std (MPEG4, ...) */
92ba5ffb 202 int workaround_bugs; /* workaround bugs in encoders which cannot be detected automatically */
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203 /* the following fields are managed internally by the encoder */
204
205 /* bit output */
206 PutBitContext pb;
207
208 /* sequence parameters */
209 int context_initialized;
9dbcbd92 210 int input_picture_number;
de6d9b64 211 int picture_number;
45870f57 212 int picture_in_gop_number; /* 0-> first pic in gop, ... */
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213 int b_frames_since_non_b; /* used for encoding, relative to not yet reordered input */
214 int mb_width, mb_height; /* number of MBs horizontally & vertically */
b5a093b3 215 int h_edge_pos, v_edge_pos;/* horizontal / vertical position of the right/bottom edge (pixel replicateion)*/
e03c341e 216 int mb_num; /* number of MBs of a picture */
de6d9b64 217 int linesize; /* line size, in bytes, may be different from width */
0fd90455 218 int uvlinesize; /* line size, for chroma in bytes, may be different from width */
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219 Picture picture[MAX_PICTURE_COUNT]; /* main picture buffer */
220 Picture *input_picture[MAX_PICTURE_COUNT]; /* next pictures on display order for encoding*/
221 Picture *reordered_input_picture[MAX_PICTURE_COUNT]; /* pointer to the next pictures in codedorder for encoding*/
222 Picture last_picture; /* previous picture */
223 Picture next_picture; /* previous picture (for bidir pred) */
224 Picture new_picture; /* source picture for encoding */
225 Picture current_picture; /* buffer to store the decompressed current picture */
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226 int last_dc[3]; /* last DC values for MPEG1 */
227 INT16 *dc_val[3]; /* used for mpeg4 DC prediction, all 3 arrays must be continuous */
de6d9b64 228 int y_dc_scale, c_dc_scale;
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229 UINT8 *y_dc_scale_table; /* qscale -> y_dc_scale table */
230 UINT8 *c_dc_scale_table; /* qscale -> c_dc_scale table */
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231 UINT8 *coded_block; /* used for coded block pattern prediction (msmpeg4v3, wmv1)*/
232 INT16 (*ac_val[3])[16]; /* used for for mpeg4 AC prediction, all 3 arrays must be continuous */
de6d9b64 233 int ac_pred;
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234 uint8_t *prev_pict_types; /* previous picture types in bitstream order, used for mb skip */
235#define PREV_PICT_TYPES_BUFFER_SIZE 256
3bb4e23a 236 int mb_skiped; /* MUST BE SET only during DECODING */
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237 UINT8 *mbskip_table; /* used to avoid copy if macroblock skipped (for black regions for example)
238 and used for b-frame encoding & decoding (contains skip table of next P Frame) */
239 UINT8 *mbintra_table; /* used to avoid setting {ac, dc, cbp}-pred stuff to zero on inter MB decoding */
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240 UINT8 *cbp_table; /* used to store cbp, ac_pred for partitioned decoding */
241 UINT8 *pred_dir_table; /* used to store pred_dir for partitioned decoding */
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242 uint8_t *allocated_edge_emu_buffer;
243 uint8_t *edge_emu_buffer; /* points into the middle of allocated_edge_emu_buffer */
de6d9b64 244
9dbcbd92 245 int qscale; /* QP */
1e491e29 246 float frame_qscale; /* qscale from the frame level rc FIXME remove*/
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247 int adaptive_quant; /* use adaptive quantization */
248 int dquant; /* qscale difference to prev qscale */
9dbcbd92 249 int pict_type; /* I_TYPE, P_TYPE, B_TYPE, ... */
3aa102be 250 int last_pict_type;
8b4c7dbc 251 int last_non_b_pict_type; /* used for mpeg4 gmc b-frames & ratecontrol */
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252 int frame_rate_index;
253 /* motion compensation */
254 int unrestricted_mv;
255 int h263_long_vectors; /* use horrible h263v1 long vector mode */
256
eb4b3dd3 257 DSPContext dsp; /* pointers for accelerated dsp fucntions */
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258 int f_code; /* forward MV resolution */
259 int b_code; /* backward MV resolution for B Frames (mpeg4) */
260 INT16 (*motion_val)[2]; /* used for MV prediction (4MV per MB) */
261 INT16 (*p_mv_table)[2]; /* MV table (1MV per MB) p-frame encoding */
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262 INT16 (*b_forw_mv_table)[2]; /* MV table (1MV per MB) forward mode b-frame encoding */
263 INT16 (*b_back_mv_table)[2]; /* MV table (1MV per MB) backward mode b-frame encoding */
264 INT16 (*b_bidir_forw_mv_table)[2]; /* MV table (1MV per MB) bidir mode b-frame encoding */
265 INT16 (*b_bidir_back_mv_table)[2]; /* MV table (1MV per MB) bidir mode b-frame encoding */
9dbcbd92 266 INT16 (*b_direct_mv_table)[2]; /* MV table (1MV per MB) direct mode b-frame encoding */
91029be7 267 int me_method; /* ME algorithm */
1fb4890b 268 int scene_change_score;
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269 int mv_dir;
270#define MV_DIR_BACKWARD 1
271#define MV_DIR_FORWARD 2
6f91bcd1 272#define MV_DIRECT 4 // bidirectional mode where the difference equals the MV of the last P/S/I-Frame (mpeg4)
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273 int mv_type;
274#define MV_TYPE_16X16 0 /* 1 vector for the whole mb */
45870f57 275#define MV_TYPE_8X8 1 /* 4 vectors (h263, mpeg4 4MV) */
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276#define MV_TYPE_16X8 2 /* 2 vectors, one per 16x8 block */
277#define MV_TYPE_FIELD 3 /* 2 vectors, one per field */
278#define MV_TYPE_DMV 4 /* 2 vectors, special mpeg2 Dual Prime Vectors */
279 /* motion vectors for a macroblock
280 first coordinate : 0 = forward 1 = backward
281 second " : depend on type
282 third " : 0 = x, 1 = y
283 */
284 int mv[2][4][2];
285 int field_select[2][2];
9dbcbd92 286 int last_mv[2][2][2]; /* last MV, used for MV prediction in MPEG1 & B-frame MPEG4 */
45870f57 287 UINT8 *fcode_tab; /* smallest fcode needed for each MV */
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288
289 MotionEstContext me;
de6d9b64 290
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291 int no_rounding; /* apply no rounding to motion compensation (MPEG4, msmpeg4, ...)
292 for b-frames rounding mode is allways 0 */
de6d9b64 293
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294 int hurry_up; /* when set to 1 during decoding, b frames will be skiped
295 when set to 2 idct/dequant will be skipped too */
c5d309f2 296
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297 /* macroblock layer */
298 int mb_x, mb_y;
299 int mb_incr;
300 int mb_intra;
7f2fe444 301 UINT8 *mb_type; /* Table for MB type */
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302#define MB_TYPE_INTRA 0x01
303#define MB_TYPE_INTER 0x02
304#define MB_TYPE_INTER4V 0x04
305#define MB_TYPE_SKIPED 0x08
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306#define MB_TYPE_GMC 0x10
307
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308#define MB_TYPE_DIRECT 0x10
309#define MB_TYPE_FORWARD 0x20
9dbcbd92 310#define MB_TYPE_BACKWARD 0x40
ba6802de 311#define MB_TYPE_BIDIR 0x80
4278e7a6 312
9dbcbd92 313 int block_index[6]; /* index to current MB in block based arrays with edges*/
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314 int block_wrap[6];
315
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316 /* matrix transmitted in the bitstream */
317 UINT16 intra_matrix[64];
318 UINT16 chroma_intra_matrix[64];
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319 UINT16 inter_matrix[64];
320 UINT16 chroma_inter_matrix[64];
321#define QUANT_BIAS_SHIFT 4
322 int intra_quant_bias; /* bias for the quantizer */
323 int inter_quant_bias; /* bias for the quantizer */
324 int min_qcoeff; /* minimum encodable coefficient */
325 int max_qcoeff; /* maximum encodable coefficient */
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326 int ac_esc_length; /* num of bits needed to encode the longest esc */
327 uint8_t *intra_ac_vlc_length;
328 uint8_t *intra_ac_vlc_last_length;
329 uint8_t *inter_ac_vlc_length;
330 uint8_t *inter_ac_vlc_last_length;
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331 uint8_t *luma_dc_vlc_length;
332 uint8_t *chroma_dc_vlc_length;
c442d75c 333#define UNI_AC_ENC_INDEX(run,level) ((run)*128 + (level))
477ab036 334
de6d9b64 335 /* precomputed matrix (combine qscale and DCT renorm) */
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336 int __align8 q_intra_matrix[32][64];
337 int __align8 q_inter_matrix[32][64];
2f349de2 338 /* identical to the above but for MMX & these are not permutated */
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339 UINT16 __align8 q_intra_matrix16[32][64];
340 UINT16 __align8 q_inter_matrix16[32][64];
341 UINT16 __align8 q_intra_matrix16_bias[32][64];
342 UINT16 __align8 q_inter_matrix16_bias[32][64];
de6d9b64 343 int block_last_index[6]; /* last non zero coefficient in block */
2ad1516a 344 /* scantables */
05c4072b 345 ScanTable __align8 intra_scantable;
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346 ScanTable intra_h_scantable;
347 ScanTable intra_v_scantable;
348 ScanTable inter_scantable; // if inter == intra then intra should be used to reduce tha cache usage
349 UINT8 idct_permutation[64];
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350 int idct_permutation_type;
351#define FF_NO_IDCT_PERM 1
352#define FF_LIBMPEG2_IDCT_PERM 2
353#define FF_SIMPLE_IDCT_PERM 3
354#define FF_TRANSPOSE_IDCT_PERM 4
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355
356 void *opaque; /* private data for the user */
357
358 /* bit rate control */
9dbcbd92 359 int I_frame_bits; //FIXME used in mpeg12 ...
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360 INT64 wanted_bits;
361 INT64 total_bits;
8b4c7dbc 362 int frame_bits; /* bits used for the current frame */
3aa102be 363 RateControlContext rc_context; // contains stuff only accessed in ratecontrol.c
9cdd6a24 364
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365 /* statistics, used for 2-pass encoding */
366 int mv_bits;
367 int header_bits;
368 int i_tex_bits;
369 int p_tex_bits;
370 int i_count;
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371 int f_count;
372 int b_count;
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373 int skip_count;
374 int misc_bits; // cbp, mb_type
375 int last_bits; //temp var used for calculating the above vars
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376
377 /* error concealment / resync */
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378 UINT8 *error_status_table; /* table of the error status of each MB */
379#define VP_START 1 /* current MB is the first after a resync marker */
380#define AC_ERROR 2
381#define DC_ERROR 4
382#define MV_ERROR 8
383#define AC_END 16
384#define DC_END 32
385#define MV_END 64
386//FIXME some prefix?
387
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388 int resync_mb_x; /* x position of last resync marker */
389 int resync_mb_y; /* y position of last resync marker */
b07a5980 390 GetBitContext last_resync_gb; /* used to search for the next resync marker */
4d2858de 391 int mb_num_left; /* number of MBs left in this video packet (for partitioned Slices only)*/
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392 int next_p_frame_damaged; /* set if the next p frame is damaged, to avoid showing trashed b frames */
393 int error_resilience;
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394
395 ParseContext parse_context;
098eefe1 396
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397 /* H.263 specific */
398 int gob_number;
644d98a4 399 int gob_index;
d140623f 400
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401 /* H.263+ specific */
402 int umvplus;
403 int umvplus_dec;
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404 int h263_aic; /* Advanded INTRA Coding (AIC) */
405 int h263_aic_dir; /* AIC direction: 0 = left, 1 = top */
544286b3 406
de6d9b64 407 /* mpeg4 specific */
6f91bcd1 408 int time_increment_resolution;
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409 int time_increment_bits; /* number of bits to represent the fractional part of time */
410 int last_time_base;
411 int time_base; /* time in seconds of last I,P,S Frame */
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412 INT64 time; /* time of current frame */
413 INT64 last_non_b_time;
414 UINT16 pp_time; /* time distance between the last 2 p,s,i frames */
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415 UINT16 pb_time; /* time distance between the last b and p,s,i frame */
416 UINT16 pp_field_time;
417 UINT16 pb_field_time; /* like above, just for interlaced */
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418 int shape;
419 int vol_sprite_usage;
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420 int sprite_width;
421 int sprite_height;
422 int sprite_left;
423 int sprite_top;
424 int sprite_brightness_change;
73c8e514 425 int num_sprite_warping_points;
44eb4951 426 int real_sprite_warping_points;
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427 int sprite_offset[2][2]; /* sprite offset[isChroma][isMVY] */
428 int sprite_delta[2][2]; /* sprite_delta [isY][isMVY] */
429 int sprite_shift[2]; /* sprite shift [isChroma] */
73c8e514 430 int mcsel;
1a565432 431 int quant_precision;
9dbcbd92 432 int quarter_sample; /* 1->qpel, 0->half pel ME/MC */
cc9ba006 433 int scalability;
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434 int hierachy_type;
435 int enhancement_type;
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436 int new_pred;
437 int reduced_res_vop;
438 int aspect_ratio_info;
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439 int aspected_width;
440 int aspected_height;
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441 int sprite_warping_accuracy;
442 int low_latency_sprite;
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443 int data_partitioning; /* data partitioning flag from header */
444 int partitioned_frame; /* is current frame partitioned */
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445 int rvlc; /* reversible vlc */
446 int resync_marker; /* could this stream contain resync markers*/
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447 int low_delay; /* no reordering needed / has no b-frames */
448 int vo_type;
7aaf3b98 449 int vol_control_parameters; /* does the stream contain the low_delay flag, used to workaround buggy encoders */
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450 PutBitContext tex_pb; /* used for data partitioned VOPs */
451 PutBitContext pb2; /* used for data partitioned VOPs */
452#define PB_BUFFER_SIZE 1024*256
453 uint8_t *tex_pb_buffer;
454 uint8_t *pb2_buffer;
d930ef19 455 int mpeg_quant;
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456#define CO_LOCATED_TYPE_4MV 1
457#define CO_LOCATED_TYPE_FIELDMV 2
458 INT8 *co_located_type_table; /* 4mv & field_mv info for next b frame */
459 INT16 (*field_mv_table)[2][2]; /* used for interlaced b frame decoding */
460 INT8 (*field_select_table)[2]; /* wtf, no really another table for interlaced b frames */
461 int t_frame; /* time distance of first I -> B, used for interlaced b frames */
a61f8265 462 int padding_bug_score; /* used to detect the VERY common padding bug in MPEG4 */
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463
464 /* divx specific, used to workaround (many) bugs in divx5 */
465 int divx_version;
466 int divx_build;
eec1c6b9 467#define BITSTREAM_BUFFER_SIZE 1024*256
ff4ec49e 468 UINT8 *bitstream_buffer; //Divx 5.01 puts several frames in a single one, this is used to reorder them
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469 int bitstream_buffer_size;
470
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471 int xvid_build;
472
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473 /* lavc specific stuff, used to workaround bugs in libavcodec */
474 int ffmpeg_version;
475 int lavc_build;
476
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477 /* RV10 specific */
478 int rv10_version; /* RV10 version: 0 or 3 */
479 int rv10_first_dc_coded[3];
480
481 /* MJPEG specific */
482 struct MJpegContext *mjpeg_ctx;
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483 int mjpeg_vsample[3]; /* vertical sampling factors, default = {2, 1, 1} */
484 int mjpeg_hsample[3]; /* horizontal sampling factors, default = {2, 1, 1} */
485 int mjpeg_write_tables; /* do we want to have quantisation- and
486 huffmantables in the jpeg file ? */
a69b930c 487 int mjpeg_data_only_frames; /* frames only with SOI, SOS and EOI markers */
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488
489 /* MSMPEG4 specific */
490 int mv_table_index;
491 int rl_table_index;
492 int rl_chroma_table_index;
493 int dc_table_index;
494 int use_skip_mb_code;
495 int slice_height; /* in macroblocks */
49092244 496 int first_slice_line; /* used in mpeg4 too to handle resync markers */
ae40484c 497 int flipflop_rounding;
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498 int msmpeg4_version; /* 0=not msmpeg4, 1=mp41, 2=mp42, 3=mp43/divx3 4=wmv1/7 5=wmv2/8*/
499 int per_mb_rl_table;
500 int esc3_level_length;
501 int esc3_run_length;
0151a6f5 502 /* [mb_intra][isChroma][level][run][last] */
6b460aa3 503 int (*ac_stats)[2][MAX_LEVEL+1][MAX_RUN+1][2];
de0f2f4c 504 int inter_intra_pred;
1457ab52 505 int mspel;
0151a6f5 506
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507 /* decompression specific */
508 GetBitContext gb;
509
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510 /* Mpeg1 specific */
511 int fake_picture_number; /* picture number at the bitstream frame rate */
512 int gop_picture_number; /* index of the first picture of a GOP based on fake_pic_num & mpeg1 specific */
63b15e55 513 int last_mv_dir; /* last mv_dir, used for b frame encoding */
1e491e29 514
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515 /* MPEG2 specific - I wish I had not to support this mess. */
516 int progressive_sequence;
517 int mpeg_f_code[2][2];
518 int picture_structure;
519/* picture type */
520#define PICT_TOP_FIELD 1
521#define PICT_BOTTOM_FIELD 2
522#define PICT_FRAME 3
523
524 int intra_dc_precision;
525 int frame_pred_frame_dct;
526 int top_field_first;
527 int concealment_motion_vectors;
528 int q_scale_type;
529 int intra_vlc_format;
530 int alternate_scan;
531 int repeat_first_field;
532 int chroma_420_type;
533 int progressive_frame;
534 int mpeg2;
535 int full_pel[2];
536 int interlaced_dct;
de6d9b64 537 int first_slice;
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538
539 /* RTP specific */
81401c1f 540 /* These are explained on avcodec.h */
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541 int rtp_mode;
542 int rtp_payload_size;
81401c1f 543 void (*rtp_callback)(void *data, int size, int packet_number);
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544 UINT8 *ptr_lastgob;
545 UINT8 *ptr_last_mb_line;
546 UINT32 mb_line_avgsize;
547
ba6802de 548 DCTELEM (*block)[64]; /* points to one of the following blocks */
91029be7 549 DCTELEM blocks[2][6][64] __align8; // for HQ mode we need to keep the best block
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550 int (*decode_mb)(struct MpegEncContext *s, DCTELEM block[6][64]); // used by some codecs to avoid a switch()
551#define SLICE_OK 0
552#define SLICE_ERROR -1
553#define SLICE_END -2 //end marker found
554#define SLICE_NOEND -3 //no end marker or error found but mb count exceeded
555
9dbf1ddd 556 void (*dct_unquantize_mpeg1)(struct MpegEncContext *s,
67309e49 557 DCTELEM *block/*align 16*/, int n, int qscale);
9dbf1ddd 558 void (*dct_unquantize_mpeg2)(struct MpegEncContext *s,
67309e49 559 DCTELEM *block/*align 16*/, int n, int qscale);
3bf43d42 560 void (*dct_unquantize_h263)(struct MpegEncContext *s,
67309e49 561 DCTELEM *block/*align 16*/, int n, int qscale);
3bf43d42 562 void (*dct_unquantize)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both)
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563 DCTELEM *block/*align 16*/, int n, int qscale);
564 int (*dct_quantize)(struct MpegEncContext *s, DCTELEM *block/*align 16*/, int n, int qscale, int *overflow);
3a87ac94 565 int (*fast_dct_quantize)(struct MpegEncContext *s, DCTELEM *block/*align 16*/, int n, int qscale, int *overflow);
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566 void (*fdct)(DCTELEM *block/* align 16*/);
567 void (*idct_put)(UINT8 *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
568 void (*idct_add)(UINT8 *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
1457ab52 569 //FIXME move above funcs into dspContext perhaps
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570} MpegEncContext;
571
4d2858de 572
defdfc9a 573int DCT_common_init(MpegEncContext *s);
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574int MPV_common_init(MpegEncContext *s);
575void MPV_common_end(MpegEncContext *s);
576void MPV_decode_mb(MpegEncContext *s, DCTELEM block[6][64]);
d6db1c9c 577int MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx);
de6d9b64 578void MPV_frame_end(MpegEncContext *s);
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579int MPV_encode_init(AVCodecContext *avctx);
580int MPV_encode_end(AVCodecContext *avctx);
581int MPV_encode_picture(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data);
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582#ifdef HAVE_MMX
583void MPV_common_init_mmx(MpegEncContext *s);
584#endif
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585#ifdef ARCH_ALPHA
586void MPV_common_init_axp(MpegEncContext *s);
587#endif
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588#ifdef HAVE_MLIB
589void MPV_common_init_mlib(MpegEncContext *s);
590#endif
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591#ifdef HAVE_MMI
592void MPV_common_init_mmi(MpegEncContext *s);
593#endif
83f238cb 594#ifdef ARCH_ARMV4L
d43b10ec 595void MPV_common_init_armv4l(MpegEncContext *s);
83f238cb 596#endif
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597#ifdef ARCH_POWERPC
598void MPV_common_init_ppc(MpegEncContext *s);
599#endif
c3aea5c4 600extern void (*draw_edges)(UINT8 *buf, int wrap, int width, int height, int w);
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601void ff_conceal_past_errors(MpegEncContext *s, int conceal_all);
602void ff_copy_bits(PutBitContext *pb, UINT8 *src, int length);
603void ff_clean_intra_table_entries(MpegEncContext *s);
2ad1516a 604void ff_init_scantable(MpegEncContext *s, ScanTable *st, const UINT8 *src_scantable);
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605void ff_error_resilience(MpegEncContext *s);
606void ff_draw_horiz_band(MpegEncContext *s);
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607void ff_emulated_edge_mc(MpegEncContext *s, UINT8 *src, int linesize, int block_w, int block_h,
608 int src_x, int src_y, int w, int h);
59b571c1 609char ff_get_pict_type_char(int pict_type);
b7a22d84 610int ff_combine_frame( MpegEncContext *s, int next, uint8_t **buf, int *buf_size);
59b571c1 611
a33c7159 612extern enum PixelFormat ff_yuv420p_list[2];
de6d9b64 613
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614extern int ff_bit_exact;
615
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616static inline void ff_init_block_index(MpegEncContext *s){
617 s->block_index[0]= s->block_wrap[0]*(s->mb_y*2 + 1) - 1 + s->mb_x*2;
618 s->block_index[1]= s->block_wrap[0]*(s->mb_y*2 + 1) + s->mb_x*2;
619 s->block_index[2]= s->block_wrap[0]*(s->mb_y*2 + 2) - 1 + s->mb_x*2;
620 s->block_index[3]= s->block_wrap[0]*(s->mb_y*2 + 2) + s->mb_x*2;
621 s->block_index[4]= s->block_wrap[4]*(s->mb_y + 1) + s->block_wrap[0]*(s->mb_height*2 + 2) + s->mb_x;
622 s->block_index[5]= s->block_wrap[4]*(s->mb_y + 1 + s->mb_height + 2) + s->block_wrap[0]*(s->mb_height*2 + 2) + s->mb_x;
623}
624
625static inline void ff_update_block_index(MpegEncContext *s){
626 s->block_index[0]+=2;
627 s->block_index[1]+=2;
628 s->block_index[2]+=2;
629 s->block_index[3]+=2;
630 s->block_index[4]++;
631 s->block_index[5]++;
632}
633
634
de6d9b64 635/* motion_est.c */
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636void ff_estimate_p_frame_motion(MpegEncContext * s,
637 int mb_x, int mb_y);
638void ff_estimate_b_frame_motion(MpegEncContext * s,
639 int mb_x, int mb_y);
640int ff_get_best_fcode(MpegEncContext * s, int16_t (*mv_table)[2], int type);
641void ff_fix_long_p_mvs(MpegEncContext * s);
642void ff_fix_long_b_mvs(MpegEncContext * s, int16_t (*mv_table)[2], int f_code, int type);
1457ab52 643void ff_init_me(MpegEncContext *s);
f5fb6b34 644int ff_pre_estimate_p_frame_motion(MpegEncContext * s, int mb_x, int mb_y);
de6d9b64 645
4d2858de 646
de6d9b64 647/* mpeg12.c */
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648extern const INT16 ff_mpeg1_default_intra_matrix[64];
649extern const INT16 ff_mpeg1_default_non_intra_matrix[64];
0151a6f5 650extern UINT8 ff_mpeg1_dc_scale_table[128];
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651
652void mpeg1_encode_picture_header(MpegEncContext *s, int picture_number);
653void mpeg1_encode_mb(MpegEncContext *s,
654 DCTELEM block[6][64],
655 int motion_x, int motion_y);
0151a6f5 656void ff_mpeg1_encode_init(MpegEncContext *s);
de6d9b64 657
4d2858de 658
de6d9b64 659/* h263enc.c */
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660typedef struct RLTable {
661 int n; /* number of entries of table_vlc minus 1 */
662 int last; /* number of values for last = 0 */
663 const UINT16 (*table_vlc)[2];
664 const INT8 *table_run;
665 const INT8 *table_level;
666 UINT8 *index_run[2]; /* encoding only */
667 INT8 *max_level[2]; /* encoding & decoding */
668 INT8 *max_run[2]; /* encoding & decoding */
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669 VLC vlc; /* decoding only deprected FIXME remove*/
670 RL_VLC_ELEM *rl_vlc[32]; /* decoding only */
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671} RLTable;
672
673void init_rl(RLTable *rl);
674void init_vlc_rl(RLTable *rl);
675
3232bc88 676static inline int get_rl_index(const RLTable *rl, int last, int run, int level)
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677{
678 int index;
679 index = rl->index_run[last][run];
680 if (index >= rl->n)
681 return rl->n;
682 if (level > rl->max_level[last][run])
683 return rl->n;
684 return index + level - 1;
685}
686
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687extern UINT8 ff_mpeg4_y_dc_scale_table[32];
688extern UINT8 ff_mpeg4_c_dc_scale_table[32];
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689extern const INT16 ff_mpeg4_default_intra_matrix[64];
690extern const INT16 ff_mpeg4_default_non_intra_matrix[64];
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691int ff_h263_decode_init(AVCodecContext *avctx);
692int ff_h263_decode_frame(AVCodecContext *avctx,
693 void *data, int *data_size,
694 UINT8 *buf, int buf_size);
695int ff_h263_decode_end(AVCodecContext *avctx);
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696void h263_encode_mb(MpegEncContext *s,
697 DCTELEM block[6][64],
698 int motion_x, int motion_y);
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699void mpeg4_encode_mb(MpegEncContext *s,
700 DCTELEM block[6][64],
701 int motion_x, int motion_y);
de6d9b64 702void h263_encode_picture_header(MpegEncContext *s, int picture_number);
644d98a4 703int h263_encode_gob_header(MpegEncContext * s, int mb_line);
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704INT16 *h263_pred_motion(MpegEncContext * s, int block,
705 int *px, int *py);
0e15384d 706void mpeg4_pred_ac(MpegEncContext * s, DCTELEM *block, int n,
de6d9b64 707 int dir);
91029be7 708void ff_set_mpeg4_time(MpegEncContext * s, int picture_number);
de6d9b64 709void mpeg4_encode_picture_header(MpegEncContext *s, int picture_number);
45870f57 710void h263_encode_init(MpegEncContext *s);
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711void h263_decode_init_vlc(MpegEncContext *s);
712int h263_decode_picture_header(MpegEncContext *s);
4d2858de 713int ff_h263_decode_gob_header(MpegEncContext *s);
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714int ff_mpeg4_decode_picture_header(MpegEncContext * s, GetBitContext *gb);
715
716
de6d9b64 717int intel_h263_decode_picture_header(MpegEncContext *s);
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718int ff_h263_decode_mb(MpegEncContext *s,
719 DCTELEM block[6][64]);
de6d9b64 720int h263_get_picture_format(int width, int height);
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721void ff_mpeg4_encode_video_packet_header(MpegEncContext *s);
722void ff_mpeg4_clean_buffers(MpegEncContext *s);
723void ff_mpeg4_stuffing(PutBitContext * pbc);
724void ff_mpeg4_init_partitions(MpegEncContext *s);
725void ff_mpeg4_merge_partitions(MpegEncContext *s);
c5d309f2 726void ff_clean_mpeg4_qscales(MpegEncContext *s);
9e4c6948 727void ff_clean_h263_qscales(MpegEncContext *s);
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728int ff_mpeg4_decode_partitions(MpegEncContext *s);
729int ff_mpeg4_get_video_packet_prefix_length(MpegEncContext *s);
730int ff_h263_resync(MpegEncContext *s);
731int ff_h263_get_gob_height(MpegEncContext *s);
1457ab52 732void ff_mpeg4_set_direct_mv(MpegEncContext *s, int mx, int my);
67725183 733inline int ff_h263_round_chroma(int x);
4d2858de 734
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735
736/* rv10.c */
737void rv10_encode_picture_header(MpegEncContext *s, int picture_number);
738int rv_decode_dc(MpegEncContext *s, int n);
739
4d2858de 740
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741/* msmpeg4.c */
742void msmpeg4_encode_picture_header(MpegEncContext * s, int picture_number);
ae40484c 743void msmpeg4_encode_ext_header(MpegEncContext * s);
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744void msmpeg4_encode_mb(MpegEncContext * s,
745 DCTELEM block[6][64],
746 int motion_x, int motion_y);
de6d9b64 747int msmpeg4_decode_picture_header(MpegEncContext * s);
ae40484c 748int msmpeg4_decode_ext_header(MpegEncContext * s, int buf_size);
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749int ff_msmpeg4_decode_init(MpegEncContext *s);
750void ff_msmpeg4_encode_init(MpegEncContext *s);
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751int ff_wmv2_decode_picture_header(MpegEncContext * s);
752void ff_wmv2_add_mb(MpegEncContext *s, DCTELEM block[6][64], uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr);
753void ff_mspel_motion(MpegEncContext *s,
754 UINT8 *dest_y, UINT8 *dest_cb, UINT8 *dest_cr,
755 UINT8 **ref_picture, op_pixels_func (*pix_op)[4],
756 int motion_x, int motion_y, int h);
757int ff_wmv2_encode_picture_header(MpegEncContext * s, int picture_number);
758void ff_wmv2_encode_mb(MpegEncContext * s,
759 DCTELEM block[6][64],
760 int motion_x, int motion_y);
de6d9b64 761
4d2858de 762/* mjpegenc.c */
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763int mjpeg_init(MpegEncContext *s);
764void mjpeg_close(MpegEncContext *s);
765void mjpeg_encode_mb(MpegEncContext *s,
766 DCTELEM block[6][64]);
767void mjpeg_picture_header(MpegEncContext *s);
768void mjpeg_picture_trailer(MpegEncContext *s);
8b4c7dbc 769
4d2858de 770
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771/* rate control */
772int ff_rate_control_init(MpegEncContext *s);
c5d309f2 773float ff_rate_estimate_qscale(MpegEncContext *s);
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774void ff_write_pass1_stats(MpegEncContext *s);
775void ff_rate_control_uninit(MpegEncContext *s);
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776double ff_eval(char *s, double *const_value, const char **const_name,
777 double (**func1)(void *, double), const char **func1_name,
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778 double (**func2)(void *, double, double), char **func2_name,
779 void *opaque);
780
8b4c7dbc 781
cd4af68a 782#endif /* AVCODEC_MPEGVIDEO_H */