error concealment needs the mbintra_table so it should allways be allocated
[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#define FRAME_SKIPED 100 // return value for header parsers if frame is not coded
24
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25enum OutputFormat {
26 FMT_MPEG1,
27 FMT_H263,
9dbcbd92 28 FMT_MJPEG,
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29};
30
31#define MPEG_BUF_SIZE (16 * 1024)
32
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33#define QMAT_SHIFT_MMX 19
34#define QMAT_SHIFT 25
35
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36#define MAX_FCODE 7
37#define MAX_MV 2048
9dbcbd92 38#define REORDER_BUFFER_SIZE (FF_MAX_B_FRAMES+2)
45870f57 39
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40#define ME_MAP_SIZE 64
41#define ME_MAP_SHIFT 3
42#define ME_MAP_MV_BITS 11
43
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44/* run length table */
45#define MAX_RUN 64
46#define MAX_LEVEL 64
47
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48typedef struct Predictor{
49 double coeff;
50 double count;
51 double decay;
52} Predictor;
53
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54typedef struct RateControlEntry{
55 int pict_type;
56 int qscale;
57 int mv_bits;
58 int i_tex_bits;
59 int p_tex_bits;
60 int misc_bits;
ff4ec49e 61 UINT64 expected_bits;
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62 int new_pict_type;
63 float new_qscale;
64}RateControlEntry;
65
66typedef struct RateControlContext{
67 FILE *stats_file;
68 int num_entries;
69 RateControlEntry *entry;
70}RateControlContext;
71
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72typedef struct ReorderBuffer{
73 UINT8 *picture[3];
74 int pict_type;
75 int qscale;
76 int force_type;
77 int picture_number;
78 int picture_in_gop_number;
79} ReorderBuffer;
80
de6d9b64 81typedef struct MpegEncContext {
58f26ba9 82 struct AVCodecContext *avctx;
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83 /* the following parameters must be initialized before encoding */
84 int width, height; /* picture size. must be a multiple of 16 */
85 int gop_size;
86 int frame_rate; /* number of frames per second */
87 int intra_only; /* if true, only intra pictures are generated */
88 int bit_rate; /* wanted bit rate */
9cdd6a24 89 int bit_rate_tolerance; /* amount of +- bits (>0)*/
de6d9b64 90 enum OutputFormat out_format; /* output format */
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91 int h263_pred; /* use mpeg4/h263 ac/dc predictions */
92
93/* the following codec id fields are deprecated in favor of codec_id */
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94 int h263_plus; /* h263 plus headers */
95 int h263_rv10; /* use RV10 variation for H263 */
d7e9533a 96 int h263_msmpeg4; /* generate MSMPEG4 compatible stream (deprecated, use msmpeg4_version instead)*/
de6d9b64 97 int h263_intel; /* use I263 intel h263 header */
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98
99 int codec_id; /* see CODEC_ID_xxx */
de6d9b64 100 int fixed_qscale; /* fixed qscale if non zero */
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101 float qcompress; /* amount of qscale change between easy & hard scenes (0.0-1.0) */
102 float qblur; /* amount of qscale smoothing over time (0.0-1.0) */
103 int qmin; /* min qscale */
104 int qmax; /* max qscale */
105 int max_qdiff; /* max qscale difference between frames */
3bb4e23a 106 int encoding; /* true if we are encoding (vs decoding) */
ba6802de 107 int flags; /* AVCodecContext.flags (HQ, MV4, ...) */
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108 int force_input_type;/* 0= no force, otherwise I_TYPE, P_TYPE, ... */
109 int max_b_frames; /* max number of b-frames for encoding */
8b4c7dbc 110 float b_quant_factor;/* qscale factor between ips and b frames */
7f2fe444 111 float b_quant_offset;/* qscale offset between ips and b frames */
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112 int rc_strategy;
113 int b_frame_strategy;
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114 int luma_elim_threshold;
115 int chroma_elim_threshold;
116 int strict_std_compliance; /* strictly follow the std (MPEG4, ...) */
92ba5ffb 117 int workaround_bugs; /* workaround bugs in encoders which cannot be detected automatically */
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118 /* the following fields are managed internally by the encoder */
119
120 /* bit output */
121 PutBitContext pb;
122
123 /* sequence parameters */
124 int context_initialized;
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125 int input_picture_number;
126 int input_picture_in_gop_number; /* 0-> first pic in gop, ... */
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127 int picture_number;
128 int fake_picture_number; /* picture number at the bitstream frame rate */
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129 int gop_picture_number; /* index of the first picture of a GOP based on fake_pic_num & mpeg1 specific */
130 int picture_in_gop_number; /* 0-> first pic in gop, ... */
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131 int b_frames_since_non_b; /* used for encoding, relative to not yet reordered input */
132 int mb_width, mb_height; /* number of MBs horizontally & vertically */
b5a093b3 133 int h_edge_pos, v_edge_pos;/* horizontal / vertical position of the right/bottom edge (pixel replicateion)*/
e03c341e 134 int mb_num; /* number of MBs of a picture */
de6d9b64 135 int linesize; /* line size, in bytes, may be different from width */
0fd90455 136 int uvlinesize; /* line size, for chroma in bytes, may be different from width */
de6d9b64 137 UINT8 *new_picture[3]; /* picture to be compressed */
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138 UINT8 *picture_buffer[REORDER_BUFFER_SIZE][3]; /* internal buffers used for reordering of input pictures */
139 int picture_buffer_index;
140 ReorderBuffer coded_order[REORDER_BUFFER_SIZE];
141 UINT8 *last_picture[3]; /* previous picture */
de6d9b64 142 UINT8 *last_picture_base[3]; /* real start of the picture */
9dbcbd92 143 UINT8 *next_picture[3]; /* previous picture (for bidir pred) */
de6d9b64 144 UINT8 *next_picture_base[3]; /* real start of the picture */
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145 UINT8 *aux_picture[3]; /* aux picture (for B frames only) */
146 UINT8 *aux_picture_base[3]; /* real start of the picture */
147 UINT8 *current_picture[3]; /* buffer to store the decompressed current picture */
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148 void *last_dr_opaque;
149 void *next_dr_opaque;
0fd90455 150 int ip_buffer_count; /* number of buffers, currently only >2 if dr1 is used */
1c2a8c7f 151 int num_available_buffers; /* is 0 at the start & after seeking, after the first I frame its 1 after next I/P 2 */
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152 int last_dc[3]; /* last DC values for MPEG1 */
153 INT16 *dc_val[3]; /* used for mpeg4 DC prediction, all 3 arrays must be continuous */
de6d9b64 154 int y_dc_scale, c_dc_scale;
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155 UINT8 *y_dc_scale_table; /* qscale -> y_dc_scale table */
156 UINT8 *c_dc_scale_table; /* qscale -> c_dc_scale table */
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157 UINT8 *coded_block; /* used for coded block pattern prediction (msmpeg4v3, wmv1)*/
158 INT16 (*ac_val[3])[16]; /* used for for mpeg4 AC prediction, all 3 arrays must be continuous */
de6d9b64 159 int ac_pred;
3bb4e23a 160 int mb_skiped; /* MUST BE SET only during DECODING */
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161 UINT8 *mbskip_table; /* used to avoid copy if macroblock skipped (for black regions for example)
162 and used for b-frame encoding & decoding (contains skip table of next P Frame) */
163 UINT8 *mbintra_table; /* used to avoid setting {ac, dc, cbp}-pred stuff to zero on inter MB decoding */
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164 UINT8 *cbp_table; /* used to store cbp, ac_pred for partitioned decoding */
165 UINT8 *pred_dir_table; /* used to store pred_dir for partitioned decoding */
166 INT8 *qscale_table; /* used to store qscale for partitioned decoding (& postprocessing FIXME export) */
93a21abd 167 UINT8 *edge_emu_buffer;
de6d9b64 168
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169 int input_qscale; /* qscale prior to reordering of frames */
170 int input_pict_type; /* pict_type prior to reordering of frames */
171 int force_type; /* 0= no force, otherwise I_TYPE, P_TYPE, ... */
172 int qscale; /* QP */
8b4c7dbc 173 int last_non_b_qscale; /* QP of last non b frame used for b frame qscale*/
9dbcbd92 174 int pict_type; /* I_TYPE, P_TYPE, B_TYPE, ... */
8b4c7dbc 175 int last_non_b_pict_type; /* used for mpeg4 gmc b-frames & ratecontrol */
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176 int frame_rate_index;
177 /* motion compensation */
178 int unrestricted_mv;
179 int h263_long_vectors; /* use horrible h263v1 long vector mode */
180
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181 int f_code; /* forward MV resolution */
182 int b_code; /* backward MV resolution for B Frames (mpeg4) */
183 INT16 (*motion_val)[2]; /* used for MV prediction (4MV per MB) */
184 INT16 (*p_mv_table)[2]; /* MV table (1MV per MB) p-frame encoding */
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185 INT16 (*b_forw_mv_table)[2]; /* MV table (1MV per MB) forward mode b-frame encoding */
186 INT16 (*b_back_mv_table)[2]; /* MV table (1MV per MB) backward mode b-frame encoding */
187 INT16 (*b_bidir_forw_mv_table)[2]; /* MV table (1MV per MB) bidir mode b-frame encoding */
188 INT16 (*b_bidir_back_mv_table)[2]; /* MV table (1MV per MB) bidir mode b-frame encoding */
189 INT16 (*b_direct_forw_mv_table)[2];/* MV table (1MV per MB) direct mode b-frame encoding */
190 INT16 (*b_direct_back_mv_table)[2];/* MV table (1MV per MB) direct mode b-frame encoding */
191 INT16 (*b_direct_mv_table)[2]; /* MV table (1MV per MB) direct mode b-frame encoding */
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192 int me_method; /* ME algorithm */
193 uint8_t *me_scratchpad; /* data area for the me algo, so that the ME doesnt need to malloc/free */
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194 uint32_t *me_map; /* map to avoid duplicate evaluations */
195 uint16_t *me_score_map; /* map to store the SADs */
196 int me_map_generation;
197 int skip_me; /* set if ME is skiped for the current MB */
1fb4890b 198 int scene_change_score;
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199 int mv_dir;
200#define MV_DIR_BACKWARD 1
201#define MV_DIR_FORWARD 2
6f91bcd1 202#define MV_DIRECT 4 // bidirectional mode where the difference equals the MV of the last P/S/I-Frame (mpeg4)
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203 int mv_type;
204#define MV_TYPE_16X16 0 /* 1 vector for the whole mb */
45870f57 205#define MV_TYPE_8X8 1 /* 4 vectors (h263, mpeg4 4MV) */
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206#define MV_TYPE_16X8 2 /* 2 vectors, one per 16x8 block */
207#define MV_TYPE_FIELD 3 /* 2 vectors, one per field */
208#define MV_TYPE_DMV 4 /* 2 vectors, special mpeg2 Dual Prime Vectors */
209 /* motion vectors for a macroblock
210 first coordinate : 0 = forward 1 = backward
211 second " : depend on type
212 third " : 0 = x, 1 = y
213 */
214 int mv[2][4][2];
215 int field_select[2][2];
9dbcbd92 216 int last_mv[2][2][2]; /* last MV, used for MV prediction in MPEG1 & B-frame MPEG4 */
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217 UINT16 (*mv_penalty)[MAX_MV*2+1]; /* amount of bits needed to encode a MV, used for ME */
218 UINT8 *fcode_tab; /* smallest fcode needed for each MV */
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219
220 int has_b_frames;
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221 int no_rounding; /* apply no rounding to motion compensation (MPEG4, msmpeg4, ...)
222 for b-frames rounding mode is allways 0 */
de6d9b64 223
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224 int hurry_up; /* when set to 1 during decoding, b frames will be skiped
225 when set to 2 idct/dequant will be skipped too */
226
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227 /* macroblock layer */
228 int mb_x, mb_y;
229 int mb_incr;
230 int mb_intra;
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231 UINT16 *mb_var; /* Table for MB variances */
232 UINT16 *mc_mb_var; /* Table for motion compensated MB variances */
233 UINT8 *mb_type; /* Table for MB type */
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234#define MB_TYPE_INTRA 0x01
235#define MB_TYPE_INTER 0x02
236#define MB_TYPE_INTER4V 0x04
237#define MB_TYPE_SKIPED 0x08
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238#define MB_TYPE_GMC 0x10
239
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240#define MB_TYPE_DIRECT 0x10
241#define MB_TYPE_FORWARD 0x20
9dbcbd92 242#define MB_TYPE_BACKWARD 0x40
ba6802de 243#define MB_TYPE_BIDIR 0x80
4278e7a6 244
9dbcbd92 245 int block_index[6]; /* index to current MB in block based arrays with edges*/
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246 int block_wrap[6];
247
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248 /* matrix transmitted in the bitstream */
249 UINT16 intra_matrix[64];
250 UINT16 chroma_intra_matrix[64];
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251 UINT16 inter_matrix[64];
252 UINT16 chroma_inter_matrix[64];
253#define QUANT_BIAS_SHIFT 4
254 int intra_quant_bias; /* bias for the quantizer */
255 int inter_quant_bias; /* bias for the quantizer */
256 int min_qcoeff; /* minimum encodable coefficient */
257 int max_qcoeff; /* maximum encodable coefficient */
de6d9b64 258 /* precomputed matrix (combine qscale and DCT renorm) */
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259 int q_intra_matrix[32][64];
260 int q_inter_matrix[32][64];
2f349de2 261 /* identical to the above but for MMX & these are not permutated */
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262 UINT16 __align8 q_intra_matrix16[32][64];
263 UINT16 __align8 q_inter_matrix16[32][64];
264 UINT16 __align8 q_intra_matrix16_bias[32][64];
265 UINT16 __align8 q_inter_matrix16_bias[32][64];
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266 int block_last_index[6]; /* last non zero coefficient in block */
267
268 void *opaque; /* private data for the user */
269
270 /* bit rate control */
9dbcbd92 271 int I_frame_bits; //FIXME used in mpeg12 ...
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272 int mb_var_sum; /* sum of MB variance for current frame */
273 int mc_mb_var_sum; /* motion compensated MB variance for current frame */
8b4c7dbc 274 int last_non_b_mc_mb_var;/* motion compensated MB variance for last non b frame */
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275 INT64 wanted_bits;
276 INT64 total_bits;
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277 int frame_bits; /* bits used for the current frame */
278 int pb_frame_bits; /* bits of the last b...bp group */
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279 Predictor i_pred;
280 Predictor p_pred;
281 double qsum; /* sum of qscales */
282 double qcount; /* count of qscales */
283 double short_term_qsum; /* sum of recent qscales */
284 double short_term_qcount; /* count of recent qscales */
8b4c7dbc 285 RateControlContext rc_context;
9cdd6a24 286
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287 /* statistics, used for 2-pass encoding */
288 int mv_bits;
289 int header_bits;
290 int i_tex_bits;
291 int p_tex_bits;
292 int i_count;
293 int p_count;
294 int skip_count;
295 int misc_bits; // cbp, mb_type
296 int last_bits; //temp var used for calculating the above vars
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297
298 /* error concealment / resync */
299 int resync_mb_x; /* x position of last resync marker */
300 int resync_mb_y; /* y position of last resync marker */
301 int mb_num_left; /* number of MBs left in this video packet */
302 GetBitContext next_resync_gb; /* starts at the next resync marker */
303 int next_resync_qscale; /* qscale of next resync marker */
304 int next_resync_pos; /* bitstream position of next resync marker */
305#define DECODING_AC_LOST -1
306#define DECODING_ACDC_LOST -2
307#define DECODING_DESYNC -3
308 int decoding_error;
309 int next_p_frame_damaged; /* set if the next p frame is damaged, to avoid showing trashed b frames */
310 int error_resilience;
098eefe1 311
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312 /* H.263 specific */
313 int gob_number;
644d98a4 314 int gob_index;
d140623f 315
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316 /* H.263+ specific */
317 int umvplus;
318 int umvplus_dec;
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319 int h263_aic; /* Advanded INTRA Coding (AIC) */
320 int h263_aic_dir; /* AIC direction: 0 = left, 1 = top */
544286b3 321
de6d9b64 322 /* mpeg4 specific */
6f91bcd1 323 int time_increment_resolution;
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324 int time_increment_bits; /* number of bits to represent the fractional part of time */
325 int last_time_base;
326 int time_base; /* time in seconds of last I,P,S Frame */
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327 INT64 time; /* time of current frame */
328 INT64 last_non_b_time;
329 UINT16 pp_time; /* time distance between the last 2 p,s,i frames */
330 UINT16 bp_time; /* time distance between the last b and p,s,i frame */
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331 int shape;
332 int vol_sprite_usage;
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333 int sprite_width;
334 int sprite_height;
335 int sprite_left;
336 int sprite_top;
337 int sprite_brightness_change;
73c8e514 338 int num_sprite_warping_points;
44eb4951 339 int real_sprite_warping_points;
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340 int sprite_offset[2][2];
341 int sprite_delta[2][2][2];
342 int sprite_shift[2][2];
343 int mcsel;
1a565432 344 int quant_precision;
9dbcbd92 345 int quarter_sample; /* 1->qpel, 0->half pel ME/MC */
cc9ba006 346 int scalability;
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347 int hierachy_type;
348 int enhancement_type;
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349 int new_pred;
350 int reduced_res_vop;
351 int aspect_ratio_info;
352 int sprite_warping_accuracy;
353 int low_latency_sprite;
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354 int data_partitioning;
355 int rvlc; /* reversible vlc */
356 int resync_marker; /* could this stream contain resync markers*/
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357 int low_delay; /* no reordering needed / has no b-frames */
358 int vo_type;
7aaf3b98 359 int vol_control_parameters; /* does the stream contain the low_delay flag, used to workaround buggy encoders */
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360 PutBitContext tex_pb; /* used for data partitioned VOPs */
361 PutBitContext pb2; /* used for data partitioned VOPs */
362#define PB_BUFFER_SIZE 1024*256
363 uint8_t *tex_pb_buffer;
364 uint8_t *pb2_buffer;
d930ef19 365 int mpeg_quant;
508abaca 366 INT8 *non_b_mv4_table;
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367
368 /* divx specific, used to workaround (many) bugs in divx5 */
369 int divx_version;
370 int divx_build;
eec1c6b9 371#define BITSTREAM_BUFFER_SIZE 1024*256
ff4ec49e 372 UINT8 *bitstream_buffer; //Divx 5.01 puts several frames in a single one, this is used to reorder them
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373 int bitstream_buffer_size;
374
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375 /* RV10 specific */
376 int rv10_version; /* RV10 version: 0 or 3 */
377 int rv10_first_dc_coded[3];
378
379 /* MJPEG specific */
380 struct MJpegContext *mjpeg_ctx;
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381 int mjpeg_vsample[3]; /* vertical sampling factors, default = {2, 1, 1} */
382 int mjpeg_hsample[3]; /* horizontal sampling factors, default = {2, 1, 1} */
383 int mjpeg_write_tables; /* do we want to have quantisation- and
384 huffmantables in the jpeg file ? */
a69b930c 385 int mjpeg_data_only_frames; /* frames only with SOI, SOS and EOI markers */
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386
387 /* MSMPEG4 specific */
388 int mv_table_index;
389 int rl_table_index;
390 int rl_chroma_table_index;
391 int dc_table_index;
392 int use_skip_mb_code;
393 int slice_height; /* in macroblocks */
49092244 394 int first_slice_line; /* used in mpeg4 too to handle resync markers */
ae40484c 395 int flipflop_rounding;
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396 int msmpeg4_version; /* 0=not msmpeg4, 1=mp41, 2=mp42, 3=mp43/divx3 4=wmv1/7 5=wmv2/8*/
397 int per_mb_rl_table;
398 int esc3_level_length;
399 int esc3_run_length;
400 UINT8 *inter_scantable;
401 UINT8 *intra_scantable;
402 UINT8 *intra_v_scantable;
403 UINT8 *intra_h_scantable;
404 /* [mb_intra][isChroma][level][run][last] */
405 int ac_stats[2][2][MAX_LEVEL+1][MAX_RUN+1][2];
de0f2f4c 406 int inter_intra_pred;
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407
408
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409 /* decompression specific */
410 GetBitContext gb;
411
412 /* MPEG2 specific - I wish I had not to support this mess. */
413 int progressive_sequence;
414 int mpeg_f_code[2][2];
415 int picture_structure;
416/* picture type */
417#define PICT_TOP_FIELD 1
418#define PICT_BOTTOM_FIELD 2
419#define PICT_FRAME 3
420
421 int intra_dc_precision;
422 int frame_pred_frame_dct;
423 int top_field_first;
424 int concealment_motion_vectors;
425 int q_scale_type;
426 int intra_vlc_format;
427 int alternate_scan;
428 int repeat_first_field;
429 int chroma_420_type;
430 int progressive_frame;
431 int mpeg2;
432 int full_pel[2];
433 int interlaced_dct;
434 int last_qscale;
435 int first_slice;
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436
437 /* RTP specific */
81401c1f 438 /* These are explained on avcodec.h */
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439 int rtp_mode;
440 int rtp_payload_size;
81401c1f 441 void (*rtp_callback)(void *data, int size, int packet_number);
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442 UINT8 *ptr_lastgob;
443 UINT8 *ptr_last_mb_line;
444 UINT32 mb_line_avgsize;
445
ba6802de 446 DCTELEM (*block)[64]; /* points to one of the following blocks */
91029be7 447 DCTELEM blocks[2][6][64] __align8; // for HQ mode we need to keep the best block
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448 void (*dct_unquantize_mpeg1)(struct MpegEncContext *s,
449 DCTELEM *block, int n, int qscale);
450 void (*dct_unquantize_mpeg2)(struct MpegEncContext *s,
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451 DCTELEM *block, int n, int qscale);
452 void (*dct_unquantize_h263)(struct MpegEncContext *s,
453 DCTELEM *block, int n, int qscale);
454 void (*dct_unquantize)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both)
21af69f7 455 DCTELEM *block, int n, int qscale);
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456} MpegEncContext;
457
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458int MPV_common_init(MpegEncContext *s);
459void MPV_common_end(MpegEncContext *s);
460void MPV_decode_mb(MpegEncContext *s, DCTELEM block[6][64]);
93a21abd 461void MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx);
de6d9b64 462void MPV_frame_end(MpegEncContext *s);
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463#ifdef HAVE_MMX
464void MPV_common_init_mmx(MpegEncContext *s);
465#endif
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466#ifdef ARCH_ALPHA
467void MPV_common_init_axp(MpegEncContext *s);
468#endif
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469extern int (*dct_quantize)(MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow);
470extern void (*draw_edges)(UINT8 *buf, int wrap, int width, int height, int w);
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471void ff_conceal_past_errors(MpegEncContext *s, int conceal_all);
472void ff_copy_bits(PutBitContext *pb, UINT8 *src, int length);
473void ff_clean_intra_table_entries(MpegEncContext *s);
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474
475/* motion_est.c */
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476void ff_estimate_p_frame_motion(MpegEncContext * s,
477 int mb_x, int mb_y);
478void ff_estimate_b_frame_motion(MpegEncContext * s,
479 int mb_x, int mb_y);
480int ff_get_best_fcode(MpegEncContext * s, int16_t (*mv_table)[2], int type);
481void ff_fix_long_p_mvs(MpegEncContext * s);
482void ff_fix_long_b_mvs(MpegEncContext * s, int16_t (*mv_table)[2], int f_code, int type);
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483
484/* mpeg12.c */
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485extern INT16 ff_mpeg1_default_intra_matrix[64];
486extern INT16 ff_mpeg1_default_non_intra_matrix[64];
0151a6f5 487extern UINT8 ff_mpeg1_dc_scale_table[128];
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488
489void mpeg1_encode_picture_header(MpegEncContext *s, int picture_number);
490void mpeg1_encode_mb(MpegEncContext *s,
491 DCTELEM block[6][64],
492 int motion_x, int motion_y);
0151a6f5 493void ff_mpeg1_encode_init(MpegEncContext *s);
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494
495/* h263enc.c */
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496typedef struct RLTable {
497 int n; /* number of entries of table_vlc minus 1 */
498 int last; /* number of values for last = 0 */
499 const UINT16 (*table_vlc)[2];
500 const INT8 *table_run;
501 const INT8 *table_level;
502 UINT8 *index_run[2]; /* encoding only */
503 INT8 *max_level[2]; /* encoding & decoding */
504 INT8 *max_run[2]; /* encoding & decoding */
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505 VLC vlc; /* decoding only deprected FIXME remove*/
506 RL_VLC_ELEM *rl_vlc[32]; /* decoding only */
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507} RLTable;
508
509void init_rl(RLTable *rl);
510void init_vlc_rl(RLTable *rl);
511
3232bc88 512static inline int get_rl_index(const RLTable *rl, int last, int run, int level)
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513{
514 int index;
515 index = rl->index_run[last][run];
516 if (index >= rl->n)
517 return rl->n;
518 if (level > rl->max_level[last][run])
519 return rl->n;
520 return index + level - 1;
521}
522
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523extern UINT8 ff_mpeg4_y_dc_scale_table[32];
524extern UINT8 ff_mpeg4_c_dc_scale_table[32];
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525extern INT16 ff_mpeg4_default_intra_matrix[64];
526extern INT16 ff_mpeg4_default_non_intra_matrix[64];
527
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528void h263_encode_mb(MpegEncContext *s,
529 DCTELEM block[6][64],
530 int motion_x, int motion_y);
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531void mpeg4_encode_mb(MpegEncContext *s,
532 DCTELEM block[6][64],
533 int motion_x, int motion_y);
de6d9b64 534void h263_encode_picture_header(MpegEncContext *s, int picture_number);
644d98a4 535int h263_encode_gob_header(MpegEncContext * s, int mb_line);
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536INT16 *h263_pred_motion(MpegEncContext * s, int block,
537 int *px, int *py);
538void mpeg4_pred_ac(MpegEncContext * s, INT16 *block, int n,
539 int dir);
91029be7 540void ff_set_mpeg4_time(MpegEncContext * s, int picture_number);
de6d9b64 541void mpeg4_encode_picture_header(MpegEncContext *s, int picture_number);
45870f57 542void h263_encode_init(MpegEncContext *s);
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543
544void h263_decode_init_vlc(MpegEncContext *s);
545int h263_decode_picture_header(MpegEncContext *s);
644d98a4 546int h263_decode_gob_header(MpegEncContext *s);
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547int mpeg4_decode_picture_header(MpegEncContext * s);
548int intel_h263_decode_picture_header(MpegEncContext *s);
549int h263_decode_mb(MpegEncContext *s,
550 DCTELEM block[6][64]);
551int h263_get_picture_format(int width, int height);
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552int ff_mpeg4_decode_video_packet_header(MpegEncContext *s);
553int ff_mpeg4_resync(MpegEncContext *s);
554void ff_mpeg4_encode_video_packet_header(MpegEncContext *s);
555void ff_mpeg4_clean_buffers(MpegEncContext *s);
556void ff_mpeg4_stuffing(PutBitContext * pbc);
557void ff_mpeg4_init_partitions(MpegEncContext *s);
558void ff_mpeg4_merge_partitions(MpegEncContext *s);
0151a6f5 559extern inline int ff_mpeg4_pred_dc(MpegEncContext * s, int n, UINT16 **dc_val_ptr, int *dir_ptr);
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560
561/* rv10.c */
562void rv10_encode_picture_header(MpegEncContext *s, int picture_number);
563int rv_decode_dc(MpegEncContext *s, int n);
564
565/* msmpeg4.c */
566void msmpeg4_encode_picture_header(MpegEncContext * s, int picture_number);
ae40484c 567void msmpeg4_encode_ext_header(MpegEncContext * s);
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568void msmpeg4_encode_mb(MpegEncContext * s,
569 DCTELEM block[6][64],
570 int motion_x, int motion_y);
de6d9b64 571int msmpeg4_decode_picture_header(MpegEncContext * s);
ae40484c 572int msmpeg4_decode_ext_header(MpegEncContext * s, int buf_size);
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573int msmpeg4_decode_mb(MpegEncContext *s,
574 DCTELEM block[6][64]);
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575int ff_msmpeg4_decode_init(MpegEncContext *s);
576void ff_msmpeg4_encode_init(MpegEncContext *s);
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577
578/* mjpegenc.c */
579
580int mjpeg_init(MpegEncContext *s);
581void mjpeg_close(MpegEncContext *s);
582void mjpeg_encode_mb(MpegEncContext *s,
583 DCTELEM block[6][64]);
584void mjpeg_picture_header(MpegEncContext *s);
585void mjpeg_picture_trailer(MpegEncContext *s);
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586
587/* rate control */
588int ff_rate_control_init(MpegEncContext *s);
589int ff_rate_estimate_qscale(MpegEncContext *s);
590int ff_rate_estimate_qscale_pass2(MpegEncContext *s);
591void ff_write_pass1_stats(MpegEncContext *s);
592void ff_rate_control_uninit(MpegEncContext *s);
593
cd4af68a 594#endif /* AVCODEC_MPEGVIDEO_H */