mpeg4 header encoding bugfix
[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
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31#define EDGE_WIDTH 16
32
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33#define MPEG_BUF_SIZE (16 * 1024)
34
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35#define QMAT_SHIFT_MMX 16
36#define QMAT_SHIFT 22
2f349de2 37
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38#define MAX_FCODE 7
39#define MAX_MV 2048
1e491e29 40
0d1e9246 41#define MAX_PICTURE_COUNT 15
45870f57 42
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43#define ME_MAP_SIZE 64
44#define ME_MAP_SHIFT 3
45#define ME_MAP_MV_BITS 11
46
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47/* run length table */
48#define MAX_RUN 64
49#define MAX_LEVEL 64
50
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51#define I_TYPE FF_I_TYPE // Intra
52#define P_TYPE FF_P_TYPE // Predicted
53#define B_TYPE FF_B_TYPE // Bi-dir predicted
54#define S_TYPE FF_S_TYPE // S(GMC)-VOP MPEG4
55
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56typedef struct Predictor{
57 double coeff;
58 double count;
59 double decay;
60} Predictor;
61
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62typedef struct RateControlEntry{
63 int pict_type;
c5d309f2 64 float qscale;
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65 int mv_bits;
66 int i_tex_bits;
67 int p_tex_bits;
68 int misc_bits;
ff4ec49e 69 UINT64 expected_bits;
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70 int new_pict_type;
71 float new_qscale;
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72 int mc_mb_var_sum;
73 int mb_var_sum;
74 int i_count;
75 int f_code;
76 int b_code;
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77}RateControlEntry;
78
79typedef struct RateControlContext{
80 FILE *stats_file;
3aa102be 81 int num_entries; /* number of RateControlEntries */
8b4c7dbc 82 RateControlEntry *entry;
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83 int buffer_index; /* amount of bits in the video/audio buffer */
84 Predictor pred[5];
85 double short_term_qsum; /* sum of recent qscales */
86 double short_term_qcount; /* count of recent qscales */
23e54f69 87 double pass1_rc_eq_output_sum;/* sum of the output of the rc equation, this is used for normalization */
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88 double pass1_wanted_bits; /* bits which should have been outputed by the pass1 code (including complexity init) */
89 double last_qscale;
947ac25a 90 double last_qscale_for[5]; /* last qscale for a specific pict type, used for max_diff & ipb factor stuff */
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91 int last_mc_mb_var_sum;
92 int last_mb_var_sum;
93 UINT64 i_cplx_sum[5];
94 UINT64 p_cplx_sum[5];
95 UINT64 mv_bits_sum[5];
96 UINT64 qscale_sum[5];
97 int frame_count[5];
947ac25a 98 int last_non_b_pict_type;
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99}RateControlContext;
100
9dbcbd92 101
2ad1516a 102typedef struct ScanTable{
7801d21d 103 const UINT8 *scantable;
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104 UINT8 permutated[64];
105 UINT8 raster_end[64];
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106#ifdef ARCH_POWERPC
107 /* Used by dct_quantise_alitvec to find last-non-zero */
108 UINT8 __align8 inverse[64];
109#endif
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110} ScanTable;
111
1e491e29 112typedef struct Picture{
492cd3a9 113 FF_COMMON_FRAME
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114
115 int mb_var_sum; /* sum of MB variance for current frame */
116 int mc_mb_var_sum; /* motion compensated MB variance for current frame */
117 uint16_t *mb_var; /* Table for MB variances */
118 uint16_t *mc_mb_var; /* Table for motion compensated MB variances */
119 uint8_t *mb_mean; /* Table for MB luminance */
0d1e9246 120 int b_frame_score; /* */
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121} Picture;
122
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123typedef struct ParseContext{
124 UINT8 *buffer;
125 int index;
126 int last_index;
127 int buffer_size;
128 int state;
129 int frame_start_found;
130} ParseContext;
131
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132struct MpegEncContext;
133
134typedef struct MotionEstContext{
135 int skip; /* set if ME is skiped for the current MB */
136 int co_located_mv[4][2]; /* mv from last p frame for direct mode ME */
137 int direct_basis_mv[4][2];
138 uint8_t *scratchpad; /* data area for the me algo, so that the ME doesnt need to malloc/free */
139 uint32_t *map; /* map to avoid duplicate evaluations */
140 uint32_t *score_map; /* map to store the scores */
141 int map_generation;
142 int penalty_factor;
143 int sub_penalty_factor;
f931ff7b 144 int pre_pass; /* = 1 for the pre pass */
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145 UINT16 (*mv_penalty)[MAX_MV*2+1]; /* amount of bits needed to encode a MV */
146 int (*sub_motion_search)(struct MpegEncContext * s,
147 int *mx_ptr, int *my_ptr, int dmin,
148 int xmin, int ymin, int xmax, int ymax,
149 int pred_x, int pred_y, Picture *ref_picture,
150 int n, int size, uint16_t * const mv_penalty);
151 int (*motion_search[7])(struct MpegEncContext * s, int block,
152 int *mx_ptr, int *my_ptr,
153 int P[10][2], int pred_x, int pred_y,
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154 int xmin, int ymin, int xmax, int ymax, Picture *ref_picture, int16_t (*last_mv)[2],
155 int ref_mv_scale, uint16_t * const mv_penalty);
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156}MotionEstContext;
157
de6d9b64 158typedef struct MpegEncContext {
58f26ba9 159 struct AVCodecContext *avctx;
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160 /* the following parameters must be initialized before encoding */
161 int width, height; /* picture size. must be a multiple of 16 */
162 int gop_size;
163 int frame_rate; /* number of frames per second */
164 int intra_only; /* if true, only intra pictures are generated */
165 int bit_rate; /* wanted bit rate */
9cdd6a24 166 int bit_rate_tolerance; /* amount of +- bits (>0)*/
de6d9b64 167 enum OutputFormat out_format; /* output format */
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168 int h263_pred; /* use mpeg4/h263 ac/dc predictions */
169
170/* the following codec id fields are deprecated in favor of codec_id */
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171 int h263_plus; /* h263 plus headers */
172 int h263_rv10; /* use RV10 variation for H263 */
d7e9533a 173 int h263_msmpeg4; /* generate MSMPEG4 compatible stream (deprecated, use msmpeg4_version instead)*/
de6d9b64 174 int h263_intel; /* use I263 intel h263 header */
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175
176 int codec_id; /* see CODEC_ID_xxx */
de6d9b64 177 int fixed_qscale; /* fixed qscale if non zero */
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178 float qcompress; /* amount of qscale change between easy & hard scenes (0.0-1.0) */
179 float qblur; /* amount of qscale smoothing over time (0.0-1.0) */
180 int qmin; /* min qscale */
181 int qmax; /* max qscale */
182 int max_qdiff; /* max qscale difference between frames */
3bb4e23a 183 int encoding; /* true if we are encoding (vs decoding) */
ba6802de 184 int flags; /* AVCodecContext.flags (HQ, MV4, ...) */
9dbcbd92 185 int max_b_frames; /* max number of b-frames for encoding */
8b4c7dbc 186 int b_frame_strategy;
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187 int luma_elim_threshold;
188 int chroma_elim_threshold;
189 int strict_std_compliance; /* strictly follow the std (MPEG4, ...) */
92ba5ffb 190 int workaround_bugs; /* workaround bugs in encoders which cannot be detected automatically */
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191 /* the following fields are managed internally by the encoder */
192
193 /* bit output */
194 PutBitContext pb;
195
196 /* sequence parameters */
197 int context_initialized;
9dbcbd92 198 int input_picture_number;
de6d9b64 199 int picture_number;
45870f57 200 int picture_in_gop_number; /* 0-> first pic in gop, ... */
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201 int b_frames_since_non_b; /* used for encoding, relative to not yet reordered input */
202 int mb_width, mb_height; /* number of MBs horizontally & vertically */
b5a093b3 203 int h_edge_pos, v_edge_pos;/* horizontal / vertical position of the right/bottom edge (pixel replicateion)*/
e03c341e 204 int mb_num; /* number of MBs of a picture */
de6d9b64 205 int linesize; /* line size, in bytes, may be different from width */
0fd90455 206 int uvlinesize; /* line size, for chroma in bytes, may be different from width */
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207 Picture picture[MAX_PICTURE_COUNT]; /* main picture buffer */
208 Picture *input_picture[MAX_PICTURE_COUNT]; /* next pictures on display order for encoding*/
209 Picture *reordered_input_picture[MAX_PICTURE_COUNT]; /* pointer to the next pictures in codedorder for encoding*/
210 Picture last_picture; /* previous picture */
211 Picture next_picture; /* previous picture (for bidir pred) */
212 Picture new_picture; /* source picture for encoding */
213 Picture current_picture; /* buffer to store the decompressed current picture */
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214 int last_dc[3]; /* last DC values for MPEG1 */
215 INT16 *dc_val[3]; /* used for mpeg4 DC prediction, all 3 arrays must be continuous */
de6d9b64 216 int y_dc_scale, c_dc_scale;
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217 UINT8 *y_dc_scale_table; /* qscale -> y_dc_scale table */
218 UINT8 *c_dc_scale_table; /* qscale -> c_dc_scale table */
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219 UINT8 *coded_block; /* used for coded block pattern prediction (msmpeg4v3, wmv1)*/
220 INT16 (*ac_val[3])[16]; /* used for for mpeg4 AC prediction, all 3 arrays must be continuous */
de6d9b64 221 int ac_pred;
3bb4e23a 222 int mb_skiped; /* MUST BE SET only during DECODING */
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223 UINT8 *mbskip_table; /* used to avoid copy if macroblock skipped (for black regions for example)
224 and used for b-frame encoding & decoding (contains skip table of next P Frame) */
225 UINT8 *mbintra_table; /* used to avoid setting {ac, dc, cbp}-pred stuff to zero on inter MB decoding */
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226 UINT8 *cbp_table; /* used to store cbp, ac_pred for partitioned decoding */
227 UINT8 *pred_dir_table; /* used to store pred_dir for partitioned decoding */
93a21abd 228 UINT8 *edge_emu_buffer;
de6d9b64 229
9dbcbd92 230 int qscale; /* QP */
1e491e29 231 float frame_qscale; /* qscale from the frame level rc FIXME remove*/
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232 int adaptive_quant; /* use adaptive quantization */
233 int dquant; /* qscale difference to prev qscale */
9dbcbd92 234 int pict_type; /* I_TYPE, P_TYPE, B_TYPE, ... */
3aa102be 235 int last_pict_type;
8b4c7dbc 236 int last_non_b_pict_type; /* used for mpeg4 gmc b-frames & ratecontrol */
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237 int frame_rate_index;
238 /* motion compensation */
239 int unrestricted_mv;
240 int h263_long_vectors; /* use horrible h263v1 long vector mode */
241
eb4b3dd3 242 DSPContext dsp; /* pointers for accelerated dsp fucntions */
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243 int f_code; /* forward MV resolution */
244 int b_code; /* backward MV resolution for B Frames (mpeg4) */
245 INT16 (*motion_val)[2]; /* used for MV prediction (4MV per MB) */
246 INT16 (*p_mv_table)[2]; /* MV table (1MV per MB) p-frame encoding */
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247 INT16 (*b_forw_mv_table)[2]; /* MV table (1MV per MB) forward mode b-frame encoding */
248 INT16 (*b_back_mv_table)[2]; /* MV table (1MV per MB) backward mode b-frame encoding */
249 INT16 (*b_bidir_forw_mv_table)[2]; /* MV table (1MV per MB) bidir mode b-frame encoding */
250 INT16 (*b_bidir_back_mv_table)[2]; /* MV table (1MV per MB) bidir mode b-frame encoding */
9dbcbd92 251 INT16 (*b_direct_mv_table)[2]; /* MV table (1MV per MB) direct mode b-frame encoding */
91029be7 252 int me_method; /* ME algorithm */
1fb4890b 253 int scene_change_score;
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254 int mv_dir;
255#define MV_DIR_BACKWARD 1
256#define MV_DIR_FORWARD 2
6f91bcd1 257#define MV_DIRECT 4 // bidirectional mode where the difference equals the MV of the last P/S/I-Frame (mpeg4)
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258 int mv_type;
259#define MV_TYPE_16X16 0 /* 1 vector for the whole mb */
45870f57 260#define MV_TYPE_8X8 1 /* 4 vectors (h263, mpeg4 4MV) */
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261#define MV_TYPE_16X8 2 /* 2 vectors, one per 16x8 block */
262#define MV_TYPE_FIELD 3 /* 2 vectors, one per field */
263#define MV_TYPE_DMV 4 /* 2 vectors, special mpeg2 Dual Prime Vectors */
264 /* motion vectors for a macroblock
265 first coordinate : 0 = forward 1 = backward
266 second " : depend on type
267 third " : 0 = x, 1 = y
268 */
269 int mv[2][4][2];
270 int field_select[2][2];
9dbcbd92 271 int last_mv[2][2][2]; /* last MV, used for MV prediction in MPEG1 & B-frame MPEG4 */
45870f57 272 UINT8 *fcode_tab; /* smallest fcode needed for each MV */
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273
274 MotionEstContext me;
de6d9b64 275
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276 int no_rounding; /* apply no rounding to motion compensation (MPEG4, msmpeg4, ...)
277 for b-frames rounding mode is allways 0 */
de6d9b64 278
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279 int hurry_up; /* when set to 1 during decoding, b frames will be skiped
280 when set to 2 idct/dequant will be skipped too */
c5d309f2 281
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282 /* macroblock layer */
283 int mb_x, mb_y;
284 int mb_incr;
285 int mb_intra;
7f2fe444 286 UINT8 *mb_type; /* Table for MB type */
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287#define MB_TYPE_INTRA 0x01
288#define MB_TYPE_INTER 0x02
289#define MB_TYPE_INTER4V 0x04
290#define MB_TYPE_SKIPED 0x08
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291#define MB_TYPE_GMC 0x10
292
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293#define MB_TYPE_DIRECT 0x10
294#define MB_TYPE_FORWARD 0x20
9dbcbd92 295#define MB_TYPE_BACKWARD 0x40
ba6802de 296#define MB_TYPE_BIDIR 0x80
4278e7a6 297
9dbcbd92 298 int block_index[6]; /* index to current MB in block based arrays with edges*/
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299 int block_wrap[6];
300
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301 /* matrix transmitted in the bitstream */
302 UINT16 intra_matrix[64];
303 UINT16 chroma_intra_matrix[64];
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304 UINT16 inter_matrix[64];
305 UINT16 chroma_inter_matrix[64];
306#define QUANT_BIAS_SHIFT 4
307 int intra_quant_bias; /* bias for the quantizer */
308 int inter_quant_bias; /* bias for the quantizer */
309 int min_qcoeff; /* minimum encodable coefficient */
310 int max_qcoeff; /* maximum encodable coefficient */
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311 int ac_esc_length; /* num of bits needed to encode the longest esc */
312 uint8_t *intra_ac_vlc_length;
313 uint8_t *intra_ac_vlc_last_length;
314 uint8_t *inter_ac_vlc_length;
315 uint8_t *inter_ac_vlc_last_length;
c442d75c 316#define UNI_AC_ENC_INDEX(run,level) ((run)*128 + (level))
477ab036 317
de6d9b64 318 /* precomputed matrix (combine qscale and DCT renorm) */
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319 int __align8 q_intra_matrix[32][64];
320 int __align8 q_inter_matrix[32][64];
2f349de2 321 /* identical to the above but for MMX & these are not permutated */
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322 UINT16 __align8 q_intra_matrix16[32][64];
323 UINT16 __align8 q_inter_matrix16[32][64];
324 UINT16 __align8 q_intra_matrix16_bias[32][64];
325 UINT16 __align8 q_inter_matrix16_bias[32][64];
de6d9b64 326 int block_last_index[6]; /* last non zero coefficient in block */
2ad1516a 327 /* scantables */
05c4072b 328 ScanTable __align8 intra_scantable;
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329 ScanTable intra_h_scantable;
330 ScanTable intra_v_scantable;
331 ScanTable inter_scantable; // if inter == intra then intra should be used to reduce tha cache usage
332 UINT8 idct_permutation[64];
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333 int idct_permutation_type;
334#define FF_NO_IDCT_PERM 1
335#define FF_LIBMPEG2_IDCT_PERM 2
336#define FF_SIMPLE_IDCT_PERM 3
337#define FF_TRANSPOSE_IDCT_PERM 4
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338
339 void *opaque; /* private data for the user */
340
341 /* bit rate control */
9dbcbd92 342 int I_frame_bits; //FIXME used in mpeg12 ...
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343 INT64 wanted_bits;
344 INT64 total_bits;
8b4c7dbc 345 int frame_bits; /* bits used for the current frame */
3aa102be 346 RateControlContext rc_context; // contains stuff only accessed in ratecontrol.c
9cdd6a24 347
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348 /* statistics, used for 2-pass encoding */
349 int mv_bits;
350 int header_bits;
351 int i_tex_bits;
352 int p_tex_bits;
353 int i_count;
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354 int f_count;
355 int b_count;
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356 int skip_count;
357 int misc_bits; // cbp, mb_type
358 int last_bits; //temp var used for calculating the above vars
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359
360 /* error concealment / resync */
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361 UINT8 *error_status_table; /* table of the error status of each MB */
362#define VP_START 1 /* current MB is the first after a resync marker */
363#define AC_ERROR 2
364#define DC_ERROR 4
365#define MV_ERROR 8
366#define AC_END 16
367#define DC_END 32
368#define MV_END 64
369//FIXME some prefix?
370
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371 int resync_mb_x; /* x position of last resync marker */
372 int resync_mb_y; /* y position of last resync marker */
b07a5980 373 GetBitContext last_resync_gb; /* used to search for the next resync marker */
4d2858de 374 int mb_num_left; /* number of MBs left in this video packet (for partitioned Slices only)*/
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375 int next_p_frame_damaged; /* set if the next p frame is damaged, to avoid showing trashed b frames */
376 int error_resilience;
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377
378 ParseContext parse_context;
098eefe1 379
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380 /* H.263 specific */
381 int gob_number;
644d98a4 382 int gob_index;
d140623f 383
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384 /* H.263+ specific */
385 int umvplus;
386 int umvplus_dec;
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387 int h263_aic; /* Advanded INTRA Coding (AIC) */
388 int h263_aic_dir; /* AIC direction: 0 = left, 1 = top */
544286b3 389
de6d9b64 390 /* mpeg4 specific */
6f91bcd1 391 int time_increment_resolution;
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392 int time_increment_bits; /* number of bits to represent the fractional part of time */
393 int last_time_base;
394 int time_base; /* time in seconds of last I,P,S Frame */
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395 INT64 time; /* time of current frame */
396 INT64 last_non_b_time;
397 UINT16 pp_time; /* time distance between the last 2 p,s,i frames */
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398 UINT16 pb_time; /* time distance between the last b and p,s,i frame */
399 UINT16 pp_field_time;
400 UINT16 pb_field_time; /* like above, just for interlaced */
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401 int shape;
402 int vol_sprite_usage;
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403 int sprite_width;
404 int sprite_height;
405 int sprite_left;
406 int sprite_top;
407 int sprite_brightness_change;
73c8e514 408 int num_sprite_warping_points;
44eb4951 409 int real_sprite_warping_points;
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410 int sprite_offset[2][2]; /* sprite offset[isChroma][isMVY] */
411 int sprite_delta[2][2]; /* sprite_delta [isY][isMVY] */
412 int sprite_shift[2]; /* sprite shift [isChroma] */
73c8e514 413 int mcsel;
1a565432 414 int quant_precision;
9dbcbd92 415 int quarter_sample; /* 1->qpel, 0->half pel ME/MC */
cc9ba006 416 int scalability;
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417 int hierachy_type;
418 int enhancement_type;
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419 int new_pred;
420 int reduced_res_vop;
421 int aspect_ratio_info;
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422 int aspected_width;
423 int aspected_height;
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424 int sprite_warping_accuracy;
425 int low_latency_sprite;
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426 int data_partitioning; /* data partitioning flag from header */
427 int partitioned_frame; /* is current frame partitioned */
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428 int rvlc; /* reversible vlc */
429 int resync_marker; /* could this stream contain resync markers*/
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430 int low_delay; /* no reordering needed / has no b-frames */
431 int vo_type;
7aaf3b98 432 int vol_control_parameters; /* does the stream contain the low_delay flag, used to workaround buggy encoders */
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433 PutBitContext tex_pb; /* used for data partitioned VOPs */
434 PutBitContext pb2; /* used for data partitioned VOPs */
435#define PB_BUFFER_SIZE 1024*256
436 uint8_t *tex_pb_buffer;
437 uint8_t *pb2_buffer;
d930ef19 438 int mpeg_quant;
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439#define CO_LOCATED_TYPE_4MV 1
440#define CO_LOCATED_TYPE_FIELDMV 2
441 INT8 *co_located_type_table; /* 4mv & field_mv info for next b frame */
442 INT16 (*field_mv_table)[2][2]; /* used for interlaced b frame decoding */
443 INT8 (*field_select_table)[2]; /* wtf, no really another table for interlaced b frames */
444 int t_frame; /* time distance of first I -> B, used for interlaced b frames */
a61f8265 445 int padding_bug_score; /* used to detect the VERY common padding bug in MPEG4 */
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446
447 /* divx specific, used to workaround (many) bugs in divx5 */
448 int divx_version;
449 int divx_build;
eec1c6b9 450#define BITSTREAM_BUFFER_SIZE 1024*256
ff4ec49e 451 UINT8 *bitstream_buffer; //Divx 5.01 puts several frames in a single one, this is used to reorder them
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452 int bitstream_buffer_size;
453
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454 int xvid_build;
455
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456 /* lavc specific stuff, used to workaround bugs in libavcodec */
457 int ffmpeg_version;
458 int lavc_build;
459
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460 /* RV10 specific */
461 int rv10_version; /* RV10 version: 0 or 3 */
462 int rv10_first_dc_coded[3];
463
464 /* MJPEG specific */
465 struct MJpegContext *mjpeg_ctx;
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466 int mjpeg_vsample[3]; /* vertical sampling factors, default = {2, 1, 1} */
467 int mjpeg_hsample[3]; /* horizontal sampling factors, default = {2, 1, 1} */
468 int mjpeg_write_tables; /* do we want to have quantisation- and
469 huffmantables in the jpeg file ? */
a69b930c 470 int mjpeg_data_only_frames; /* frames only with SOI, SOS and EOI markers */
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471
472 /* MSMPEG4 specific */
473 int mv_table_index;
474 int rl_table_index;
475 int rl_chroma_table_index;
476 int dc_table_index;
477 int use_skip_mb_code;
478 int slice_height; /* in macroblocks */
49092244 479 int first_slice_line; /* used in mpeg4 too to handle resync markers */
ae40484c 480 int flipflop_rounding;
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481 int msmpeg4_version; /* 0=not msmpeg4, 1=mp41, 2=mp42, 3=mp43/divx3 4=wmv1/7 5=wmv2/8*/
482 int per_mb_rl_table;
483 int esc3_level_length;
484 int esc3_run_length;
0151a6f5 485 /* [mb_intra][isChroma][level][run][last] */
6b460aa3 486 int (*ac_stats)[2][MAX_LEVEL+1][MAX_RUN+1][2];
de0f2f4c 487 int inter_intra_pred;
1457ab52 488 int mspel;
0151a6f5 489
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490 /* decompression specific */
491 GetBitContext gb;
492
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493 /* Mpeg1 specific */
494 int fake_picture_number; /* picture number at the bitstream frame rate */
495 int gop_picture_number; /* index of the first picture of a GOP based on fake_pic_num & mpeg1 specific */
496
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497 /* MPEG2 specific - I wish I had not to support this mess. */
498 int progressive_sequence;
499 int mpeg_f_code[2][2];
500 int picture_structure;
501/* picture type */
502#define PICT_TOP_FIELD 1
503#define PICT_BOTTOM_FIELD 2
504#define PICT_FRAME 3
505
506 int intra_dc_precision;
507 int frame_pred_frame_dct;
508 int top_field_first;
509 int concealment_motion_vectors;
510 int q_scale_type;
511 int intra_vlc_format;
512 int alternate_scan;
513 int repeat_first_field;
514 int chroma_420_type;
515 int progressive_frame;
516 int mpeg2;
517 int full_pel[2];
518 int interlaced_dct;
de6d9b64 519 int first_slice;
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520
521 /* RTP specific */
81401c1f 522 /* These are explained on avcodec.h */
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523 int rtp_mode;
524 int rtp_payload_size;
81401c1f 525 void (*rtp_callback)(void *data, int size, int packet_number);
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526 UINT8 *ptr_lastgob;
527 UINT8 *ptr_last_mb_line;
528 UINT32 mb_line_avgsize;
529
ba6802de 530 DCTELEM (*block)[64]; /* points to one of the following blocks */
91029be7 531 DCTELEM blocks[2][6][64] __align8; // for HQ mode we need to keep the best block
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532 int (*decode_mb)(struct MpegEncContext *s, DCTELEM block[6][64]); // used by some codecs to avoid a switch()
533#define SLICE_OK 0
534#define SLICE_ERROR -1
535#define SLICE_END -2 //end marker found
536#define SLICE_NOEND -3 //no end marker or error found but mb count exceeded
537
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538 void (*dct_unquantize_mpeg1)(struct MpegEncContext *s,
539 DCTELEM *block, int n, int qscale);
540 void (*dct_unquantize_mpeg2)(struct MpegEncContext *s,
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541 DCTELEM *block, int n, int qscale);
542 void (*dct_unquantize_h263)(struct MpegEncContext *s,
543 DCTELEM *block, int n, int qscale);
544 void (*dct_unquantize)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both)
21af69f7 545 DCTELEM *block, int n, int qscale);
28db7fce 546 int (*dct_quantize)(struct MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow);
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547 void (*fdct)(DCTELEM *block/* align 16*/);
548 void (*idct_put)(UINT8 *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
549 void (*idct_add)(UINT8 *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
1457ab52 550 //FIXME move above funcs into dspContext perhaps
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551} MpegEncContext;
552
4d2858de 553
defdfc9a 554int DCT_common_init(MpegEncContext *s);
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555int MPV_common_init(MpegEncContext *s);
556void MPV_common_end(MpegEncContext *s);
557void MPV_decode_mb(MpegEncContext *s, DCTELEM block[6][64]);
d6db1c9c 558int MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx);
de6d9b64 559void MPV_frame_end(MpegEncContext *s);
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560int MPV_encode_init(AVCodecContext *avctx);
561int MPV_encode_end(AVCodecContext *avctx);
562int MPV_encode_picture(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data);
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563#ifdef HAVE_MMX
564void MPV_common_init_mmx(MpegEncContext *s);
565#endif
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566#ifdef ARCH_ALPHA
567void MPV_common_init_axp(MpegEncContext *s);
568#endif
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569#ifdef HAVE_MLIB
570void MPV_common_init_mlib(MpegEncContext *s);
571#endif
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572#ifdef HAVE_MMI
573void MPV_common_init_mmi(MpegEncContext *s);
574#endif
83f238cb 575#ifdef ARCH_ARMV4L
d43b10ec 576void MPV_common_init_armv4l(MpegEncContext *s);
83f238cb 577#endif
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578#ifdef ARCH_POWERPC
579void MPV_common_init_ppc(MpegEncContext *s);
580#endif
c3aea5c4 581extern void (*draw_edges)(UINT8 *buf, int wrap, int width, int height, int w);
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582void ff_conceal_past_errors(MpegEncContext *s, int conceal_all);
583void ff_copy_bits(PutBitContext *pb, UINT8 *src, int length);
584void ff_clean_intra_table_entries(MpegEncContext *s);
2ad1516a 585void ff_init_scantable(MpegEncContext *s, ScanTable *st, const UINT8 *src_scantable);
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586void ff_error_resilience(MpegEncContext *s);
587void ff_draw_horiz_band(MpegEncContext *s);
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588void ff_emulated_edge_mc(MpegEncContext *s, UINT8 *src, int linesize, int block_w, int block_h,
589 int src_x, int src_y, int w, int h);
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590char ff_get_pict_type_char(int pict_type);
591
de6d9b64 592
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593extern int ff_bit_exact;
594
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595static inline void ff_init_block_index(MpegEncContext *s){
596 s->block_index[0]= s->block_wrap[0]*(s->mb_y*2 + 1) - 1 + s->mb_x*2;
597 s->block_index[1]= s->block_wrap[0]*(s->mb_y*2 + 1) + s->mb_x*2;
598 s->block_index[2]= s->block_wrap[0]*(s->mb_y*2 + 2) - 1 + s->mb_x*2;
599 s->block_index[3]= s->block_wrap[0]*(s->mb_y*2 + 2) + s->mb_x*2;
600 s->block_index[4]= s->block_wrap[4]*(s->mb_y + 1) + s->block_wrap[0]*(s->mb_height*2 + 2) + s->mb_x;
601 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;
602}
603
604static inline void ff_update_block_index(MpegEncContext *s){
605 s->block_index[0]+=2;
606 s->block_index[1]+=2;
607 s->block_index[2]+=2;
608 s->block_index[3]+=2;
609 s->block_index[4]++;
610 s->block_index[5]++;
611}
612
613
de6d9b64 614/* motion_est.c */
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615void ff_estimate_p_frame_motion(MpegEncContext * s,
616 int mb_x, int mb_y);
617void ff_estimate_b_frame_motion(MpegEncContext * s,
618 int mb_x, int mb_y);
619int ff_get_best_fcode(MpegEncContext * s, int16_t (*mv_table)[2], int type);
620void ff_fix_long_p_mvs(MpegEncContext * s);
621void ff_fix_long_b_mvs(MpegEncContext * s, int16_t (*mv_table)[2], int f_code, int type);
1457ab52 622void ff_init_me(MpegEncContext *s);
f5fb6b34 623int ff_pre_estimate_p_frame_motion(MpegEncContext * s, int mb_x, int mb_y);
de6d9b64 624
4d2858de 625
de6d9b64 626/* mpeg12.c */
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627extern const INT16 ff_mpeg1_default_intra_matrix[64];
628extern const INT16 ff_mpeg1_default_non_intra_matrix[64];
0151a6f5 629extern UINT8 ff_mpeg1_dc_scale_table[128];
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630
631void mpeg1_encode_picture_header(MpegEncContext *s, int picture_number);
632void mpeg1_encode_mb(MpegEncContext *s,
633 DCTELEM block[6][64],
634 int motion_x, int motion_y);
0151a6f5 635void ff_mpeg1_encode_init(MpegEncContext *s);
de6d9b64 636
4d2858de 637
de6d9b64 638/* h263enc.c */
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639typedef struct RLTable {
640 int n; /* number of entries of table_vlc minus 1 */
641 int last; /* number of values for last = 0 */
642 const UINT16 (*table_vlc)[2];
643 const INT8 *table_run;
644 const INT8 *table_level;
645 UINT8 *index_run[2]; /* encoding only */
646 INT8 *max_level[2]; /* encoding & decoding */
647 INT8 *max_run[2]; /* encoding & decoding */
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648 VLC vlc; /* decoding only deprected FIXME remove*/
649 RL_VLC_ELEM *rl_vlc[32]; /* decoding only */
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650} RLTable;
651
652void init_rl(RLTable *rl);
653void init_vlc_rl(RLTable *rl);
654
3232bc88 655static inline int get_rl_index(const RLTable *rl, int last, int run, int level)
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656{
657 int index;
658 index = rl->index_run[last][run];
659 if (index >= rl->n)
660 return rl->n;
661 if (level > rl->max_level[last][run])
662 return rl->n;
663 return index + level - 1;
664}
665
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666extern UINT8 ff_mpeg4_y_dc_scale_table[32];
667extern UINT8 ff_mpeg4_c_dc_scale_table[32];
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668extern const INT16 ff_mpeg4_default_intra_matrix[64];
669extern const INT16 ff_mpeg4_default_non_intra_matrix[64];
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670int ff_h263_decode_init(AVCodecContext *avctx);
671int ff_h263_decode_frame(AVCodecContext *avctx,
672 void *data, int *data_size,
673 UINT8 *buf, int buf_size);
674int ff_h263_decode_end(AVCodecContext *avctx);
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675void h263_encode_mb(MpegEncContext *s,
676 DCTELEM block[6][64],
677 int motion_x, int motion_y);
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678void mpeg4_encode_mb(MpegEncContext *s,
679 DCTELEM block[6][64],
680 int motion_x, int motion_y);
de6d9b64 681void h263_encode_picture_header(MpegEncContext *s, int picture_number);
644d98a4 682int h263_encode_gob_header(MpegEncContext * s, int mb_line);
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683INT16 *h263_pred_motion(MpegEncContext * s, int block,
684 int *px, int *py);
685void mpeg4_pred_ac(MpegEncContext * s, INT16 *block, int n,
686 int dir);
91029be7 687void ff_set_mpeg4_time(MpegEncContext * s, int picture_number);
de6d9b64 688void mpeg4_encode_picture_header(MpegEncContext *s, int picture_number);
45870f57 689void h263_encode_init(MpegEncContext *s);
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690void h263_decode_init_vlc(MpegEncContext *s);
691int h263_decode_picture_header(MpegEncContext *s);
4d2858de 692int ff_h263_decode_gob_header(MpegEncContext *s);
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693int ff_mpeg4_decode_picture_header(MpegEncContext * s, GetBitContext *gb);
694
695
de6d9b64 696int intel_h263_decode_picture_header(MpegEncContext *s);
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697int ff_h263_decode_mb(MpegEncContext *s,
698 DCTELEM block[6][64]);
de6d9b64 699int h263_get_picture_format(int width, int height);
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700void ff_mpeg4_encode_video_packet_header(MpegEncContext *s);
701void ff_mpeg4_clean_buffers(MpegEncContext *s);
702void ff_mpeg4_stuffing(PutBitContext * pbc);
703void ff_mpeg4_init_partitions(MpegEncContext *s);
704void ff_mpeg4_merge_partitions(MpegEncContext *s);
c5d309f2 705void ff_clean_mpeg4_qscales(MpegEncContext *s);
9e4c6948 706void ff_clean_h263_qscales(MpegEncContext *s);
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707int ff_mpeg4_decode_partitions(MpegEncContext *s);
708int ff_mpeg4_get_video_packet_prefix_length(MpegEncContext *s);
709int ff_h263_resync(MpegEncContext *s);
710int ff_h263_get_gob_height(MpegEncContext *s);
1457ab52 711void ff_mpeg4_set_direct_mv(MpegEncContext *s, int mx, int my);
4d2858de 712
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713
714/* rv10.c */
715void rv10_encode_picture_header(MpegEncContext *s, int picture_number);
716int rv_decode_dc(MpegEncContext *s, int n);
717
4d2858de 718
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719/* msmpeg4.c */
720void msmpeg4_encode_picture_header(MpegEncContext * s, int picture_number);
ae40484c 721void msmpeg4_encode_ext_header(MpegEncContext * s);
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722void msmpeg4_encode_mb(MpegEncContext * s,
723 DCTELEM block[6][64],
724 int motion_x, int motion_y);
de6d9b64 725int msmpeg4_decode_picture_header(MpegEncContext * s);
ae40484c 726int msmpeg4_decode_ext_header(MpegEncContext * s, int buf_size);
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727int ff_msmpeg4_decode_init(MpegEncContext *s);
728void ff_msmpeg4_encode_init(MpegEncContext *s);
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729int ff_wmv2_decode_picture_header(MpegEncContext * s);
730void ff_wmv2_add_mb(MpegEncContext *s, DCTELEM block[6][64], uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr);
731void ff_mspel_motion(MpegEncContext *s,
732 UINT8 *dest_y, UINT8 *dest_cb, UINT8 *dest_cr,
733 UINT8 **ref_picture, op_pixels_func (*pix_op)[4],
734 int motion_x, int motion_y, int h);
735int ff_wmv2_encode_picture_header(MpegEncContext * s, int picture_number);
736void ff_wmv2_encode_mb(MpegEncContext * s,
737 DCTELEM block[6][64],
738 int motion_x, int motion_y);
de6d9b64 739
4d2858de 740/* mjpegenc.c */
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741int mjpeg_init(MpegEncContext *s);
742void mjpeg_close(MpegEncContext *s);
743void mjpeg_encode_mb(MpegEncContext *s,
744 DCTELEM block[6][64]);
745void mjpeg_picture_header(MpegEncContext *s);
746void mjpeg_picture_trailer(MpegEncContext *s);
8b4c7dbc 747
4d2858de 748
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749/* rate control */
750int ff_rate_control_init(MpegEncContext *s);
c5d309f2 751float ff_rate_estimate_qscale(MpegEncContext *s);
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752void ff_write_pass1_stats(MpegEncContext *s);
753void ff_rate_control_uninit(MpegEncContext *s);
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754double ff_eval(char *s, double *const_value, char **const_name,
755 double (**func1)(void *, double), char **func1_name,
756 double (**func2)(void *, double, double), char **func2_name,
757 void *opaque);
758
8b4c7dbc 759
cd4af68a 760#endif /* AVCODEC_MPEGVIDEO_H */