Move the ratecontrol related code from mpegvideo.h to a separate header file.
[libav.git] / libavcodec / mpegvideo.h
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1/*
2 * Generic DCT based hybrid video encoder
ff4ec49e 3 * Copyright (c) 2000, 2001, 2002 Fabrice Bellard.
8f2ab833 4 * Copyright (c) 2002-2004 Michael Niedermayer
de6d9b64 5 *
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6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
de6d9b64 10 *
ff4ec49e 11 * This library is distributed in the hope that it will be useful,
de6d9b64 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
de6d9b64 15 *
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16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
5509bffa 18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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19 */
20
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21/**
22 * @file mpegvideo.h
23 * mpegvideo header.
24 */
115329f1 25
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26#ifndef AVCODEC_MPEGVIDEO_H
27#define AVCODEC_MPEGVIDEO_H
28
5c91a675 29#include "dsputil.h"
caa336b4 30#include "bitstream.h"
0de9926f 31#include "ratecontrol.h"
5c91a675 32
160d679c 33#define FRAME_SKIPPED 100 ///< return value for header parsers if frame is not coded
eec1c6b9 34
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35enum OutputFormat {
36 FMT_MPEG1,
c6148de2 37 FMT_H261,
de6d9b64 38 FMT_H263,
115329f1 39 FMT_MJPEG,
0da71265 40 FMT_H264,
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41};
42
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43#define EDGE_WIDTH 16
44
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45#define MPEG_BUF_SIZE (16 * 1024)
46
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47#define QMAT_SHIFT_MMX 16
48#define QMAT_SHIFT 22
2f349de2 49
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50#define MAX_FCODE 7
51#define MAX_MV 2048
1e491e29 52
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53#define MAX_THREADS 8
54
5cbb0e70 55#define MAX_PICTURE_COUNT 32
45870f57 56
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57#define ME_MAP_SIZE 64
58#define ME_MAP_SHIFT 3
59#define ME_MAP_MV_BITS 11
60
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61/* run length table */
62#define MAX_RUN 64
63#define MAX_LEVEL 64
64
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65#define I_TYPE FF_I_TYPE ///< Intra
66#define P_TYPE FF_P_TYPE ///< Predicted
67#define B_TYPE FF_B_TYPE ///< Bi-dir predicted
68#define S_TYPE FF_S_TYPE ///< S(GMC)-VOP MPEG4
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69#define SI_TYPE FF_SI_TYPE ///< Switching Intra
70#define SP_TYPE FF_SP_TYPE ///< Switching Predicted
140cb663 71
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72#define MAX_MB_BYTES (30*16*16*3/8 + 120)
73
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74#define INPLACE_OFFSET 16
75
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76/**
77 * Scantable.
78 */
2ad1516a 79typedef struct ScanTable{
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80 const uint8_t *scantable;
81 uint8_t permutated[64];
82 uint8_t raster_end[64];
05c4072b 83#ifdef ARCH_POWERPC
bb270c08 84 /** Used by dct_quantise_alitvec to find last-non-zero */
68b51e58 85 DECLARE_ALIGNED_8(uint8_t, inverse[64]);
05c4072b 86#endif
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87} ScanTable;
88
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89/**
90 * Picture.
91 */
1e491e29 92typedef struct Picture{
492cd3a9 93 FF_COMMON_FRAME
1e491e29 94
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95 /**
96 * halfpel luma planes.
97 */
98 uint8_t *interpolated[3];
b40cd4e0 99 int16_t (*motion_val_base[2])[2];
7bc9090a 100 uint32_t *mb_type_base;
bb198e19 101#define MB_TYPE_INTRA MB_TYPE_INTRA4x4 //default mb_type if theres just one type
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102#define IS_INTRA4x4(a) ((a)&MB_TYPE_INTRA4x4)
103#define IS_INTRA16x16(a) ((a)&MB_TYPE_INTRA16x16)
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104#define IS_PCM(a) ((a)&MB_TYPE_INTRA_PCM)
105#define IS_INTRA(a) ((a)&7)
0da71265 106#define IS_INTER(a) ((a)&(MB_TYPE_16x16|MB_TYPE_16x8|MB_TYPE_8x16|MB_TYPE_8x8))
7bc9090a 107#define IS_SKIP(a) ((a)&MB_TYPE_SKIP)
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108#define IS_INTRA_PCM(a) ((a)&MB_TYPE_INTRA_PCM)
109#define IS_INTERLACED(a) ((a)&MB_TYPE_INTERLACED)
110#define IS_DIRECT(a) ((a)&MB_TYPE_DIRECT2)
7bc9090a 111#define IS_GMC(a) ((a)&MB_TYPE_GMC)
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112#define IS_16X16(a) ((a)&MB_TYPE_16x16)
113#define IS_16X8(a) ((a)&MB_TYPE_16x8)
114#define IS_8X16(a) ((a)&MB_TYPE_8x16)
115#define IS_8X8(a) ((a)&MB_TYPE_8x8)
116#define IS_SUB_8X8(a) ((a)&MB_TYPE_16x16) //note reused
117#define IS_SUB_8X4(a) ((a)&MB_TYPE_16x8) //note reused
118#define IS_SUB_4X8(a) ((a)&MB_TYPE_8x16) //note reused
119#define IS_SUB_4X4(a) ((a)&MB_TYPE_8x8) //note reused
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120#define IS_ACPRED(a) ((a)&MB_TYPE_ACPRED)
121#define IS_QUANT(a) ((a)&MB_TYPE_QUANT)
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122#define IS_DIR(a, part, list) ((a) & (MB_TYPE_P0L0<<((part)+2*(list))))
123#define USES_LIST(a, list) ((a) & ((MB_TYPE_P0L0|MB_TYPE_P1L0)<<(2*(list)))) ///< does this mb use listX, note doesnt work if subMBs
b40cd4e0 124#define HAS_CBP(a) ((a)&MB_TYPE_CBP)
0da71265 125
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126 int field_poc[2]; ///< h264 top/bottom POC
127 int poc; ///< h264 frame POC
128 int frame_num; ///< h264 frame_num
129 int pic_id; ///< h264 pic_num or long_term_pic_idx
130 int long_ref; ///< 1->long term reference 0->short term reference
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131 int ref_poc[2][16]; ///< h264 POCs of the frames used as reference
132 int ref_count[2]; ///< number of entries in ref_poc
0da71265 133
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134 int mb_var_sum; ///< sum of MB variance for current frame
135 int mc_mb_var_sum; ///< motion compensated MB variance for current frame
136 uint16_t *mb_var; ///< Table for MB variances
137 uint16_t *mc_mb_var; ///< Table for motion compensated MB variances
138 uint8_t *mb_mean; ///< Table for MB luminance
bb270c08 139 int32_t *mb_cmp_score; ///< Table for MB cmp scores, for mb decision FIXME remove
0d1e9246 140 int b_frame_score; /* */
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141} Picture;
142
d7425f59 143typedef struct ParseContext{
0c1a9eda 144 uint8_t *buffer;
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145 int index;
146 int last_index;
f038fe8b 147 unsigned int buffer_size;
bb463d81 148 uint32_t state; ///< contains the last few bytes in MSB order
d7425f59 149 int frame_start_found;
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150 int overread; ///< the number of bytes which where irreversibly read from the next frame
151 int overread_index; ///< the index into ParseContext.buffer of the overreaded bytes
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152} ParseContext;
153
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154struct MpegEncContext;
155
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156/**
157 * Motion estimation context.
158 */
1457ab52 159typedef struct MotionEstContext{
1f202b0d 160 AVCodecContext *avctx;
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161 int skip; ///< set if ME is skipped for the current MB
162 int co_located_mv[4][2]; ///< mv from last p frame for direct mode ME
1457ab52 163 int direct_basis_mv[4][2];
115329f1 164 uint8_t *scratchpad; ///< data area for the me algo, so that the ME doesnt need to malloc/free
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165 uint8_t *best_mb;
166 uint8_t *temp_mb[2];
167 uint8_t *temp;
168 int best_bits;
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169 uint32_t *map; ///< map to avoid duplicate evaluations
170 uint32_t *score_map; ///< map to store the scores
171 int map_generation;
826f429a 172 int pre_penalty_factor;
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173 int penalty_factor;
174 int sub_penalty_factor;
67725183 175 int mb_penalty_factor;
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176 int flags;
177 int sub_flags;
178 int mb_flags;
115329f1 179 int pre_pass; ///< = 1 for the pre pass
826f429a 180 int dia_size;
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181 int xmin;
182 int xmax;
183 int ymin;
184 int ymax;
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185 int pred_x;
186 int pred_y;
187 uint8_t *src[4][4];
188 uint8_t *ref[4][4];
189 int stride;
190 int uvstride;
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191 /* temp variables for picture complexity calculation */
192 int mc_mb_var_sum_temp;
193 int mb_var_sum_temp;
194 int scene_change_score;
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195/* cmp, chroma_cmp;*/
196 op_pixels_func (*hpel_put)[4];
197 op_pixels_func (*hpel_avg)[4];
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198 qpel_mc_func (*qpel_put)[16];
199 qpel_mc_func (*qpel_avg)[16];
115329f1 200 uint8_t (*mv_penalty)[MAX_MV*2+1]; ///< amount of bits needed to encode a MV
2750b827 201 uint8_t *current_mv_penalty;
1457ab52 202 int (*sub_motion_search)(struct MpegEncContext * s,
bb270c08 203 int *mx_ptr, int *my_ptr, int dmin,
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204 int src_index, int ref_index,
205 int size, int h);
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206}MotionEstContext;
207
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208/**
209 * MpegEncContext.
210 */
de6d9b64 211typedef struct MpegEncContext {
58f26ba9 212 struct AVCodecContext *avctx;
de6d9b64 213 /* the following parameters must be initialized before encoding */
115329f1 214 int width, height;///< picture size. must be a multiple of 16
de6d9b64 215 int gop_size;
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216 int intra_only; ///< if true, only intra pictures are generated
217 int bit_rate; ///< wanted bit rate
218 enum OutputFormat out_format; ///< output format
219 int h263_pred; ///< use mpeg4/h263 ac/dc predictions
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220
221/* the following codec id fields are deprecated in favor of codec_id */
115329f1 222 int h263_plus; ///< h263 plus headers
277f4827 223 int h263_msmpeg4; ///< generate MSMPEG4 compatible stream (deprecated, use msmpeg4_version instead)
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224 int h263_flv; ///< use flv h263 header
225
0f242af2 226 enum CodecID codec_id; /* see CODEC_ID_xxx */
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227 int fixed_qscale; ///< fixed qscale if non zero
228 int encoding; ///< true if we are encoding (vs decoding)
229 int flags; ///< AVCodecContext.flags (HQ, MV4, ...)
303e50e6 230 int flags2; ///< AVCodecContext.flags2
115329f1 231 int max_b_frames; ///< max number of b-frames for encoding
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232 int luma_elim_threshold;
233 int chroma_elim_threshold;
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234 int strict_std_compliance; ///< strictly follow the std (MPEG4, ...)
235 int workaround_bugs; ///< workaround bugs in encoders which cannot be detected automatically
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236 /* the following fields are managed internally by the encoder */
237
277f4827 238 /** bit output */
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239 PutBitContext pb;
240
241 /* sequence parameters */
242 int context_initialized;
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243 int input_picture_number; ///< used to set pic->display_picture_number, shouldnt be used for/by anything else
244 int coded_picture_number; ///< used to set pic->coded_picture_number, shouldnt be used for/by anything else
245 int picture_number; //FIXME remove, unclear definition
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246 int picture_in_gop_number; ///< 0-> first pic in gop, ...
247 int b_frames_since_non_b; ///< used for encoding, relative to not yet reordered input
e51f4948 248 int64_t user_specified_pts;///< last non zero pts from AVFrame which was passed into avcodec_encode_video()
115329f1 249 int mb_width, mb_height; ///< number of MBs horizontally & vertically
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250 int mb_stride; ///< mb_width+1 used for some arrays to allow simple addressing of left & top MBs without sig11
251 int b8_stride; ///< 2*mb_width+1 used for some 8x8 block arrays to allow simple addressing
252 int b4_stride; ///< 4*mb_width+1 used for some 4x4 block arrays to allow simple addressing
253 int h_edge_pos, v_edge_pos;///< horizontal / vertical position of the right/bottom edge (pixel replication)
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254 int mb_num; ///< number of MBs of a picture
255 int linesize; ///< line size, in bytes, may be different from width
256 int uvlinesize; ///< line size, for chroma in bytes, may be different from width
257 Picture *picture; ///< main picture buffer
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258 Picture **input_picture; ///< next pictures on display order for encoding
259 Picture **reordered_input_picture; ///< pointer to the next pictures in codedorder for encoding
115329f1 260
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261 int start_mb_y; ///< start mb_y of this thread (so current thread should process start_mb_y <= row < end_mb_y)
262 int end_mb_y; ///< end mb_y of this thread (so current thread should process start_mb_y <= row < end_mb_y)
263 struct MpegEncContext *thread_context[MAX_THREADS];
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264
265 /**
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266 * copy of the previous picture structure.
267 * note, linesize & data, might not match the previous picture (for field pictures)
268 */
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269 Picture last_picture;
270
271 /**
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272 * copy of the next picture structure.
273 * note, linesize & data, might not match the next picture (for field pictures)
274 */
275 Picture next_picture;
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276
277 /**
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278 * copy of the source picture structure for encoding.
279 * note, linesize & data, might not match the source picture (for field pictures)
280 */
281 Picture new_picture;
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282
283 /**
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284 * copy of the current picture structure.
285 * note, linesize & data, might not match the current picture (for field pictures)
286 */
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287 Picture current_picture; ///< buffer to store the decompressed current picture
288
b536d0aa 289 Picture *last_picture_ptr; ///< pointer to the previous picture.
115329f1 290 Picture *next_picture_ptr; ///< pointer to the next picture (for bidir pred)
b536d0aa 291 Picture *current_picture_ptr; ///< pointer to the current picture
0c9bbaec 292 uint8_t *visualization_buffer[3]; //< temporary buffer vor MV visualization
115329f1 293 int last_dc[3]; ///< last DC values for MPEG1
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294 int16_t *dc_val_base;
295 int16_t *dc_val[3]; ///< used for mpeg4 DC prediction, all 3 arrays must be continuous
0da71265 296 int16_t dc_cache[4*5];
de6d9b64 297 int y_dc_scale, c_dc_scale;
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298 const uint8_t *y_dc_scale_table; ///< qscale -> y_dc_scale table
299 const uint8_t *c_dc_scale_table; ///< qscale -> c_dc_scale table
332f9ac4 300 const uint8_t *chroma_qscale_table; ///< qscale -> chroma_qscale (h263)
137c8468 301 uint8_t *coded_block_base;
277f4827 302 uint8_t *coded_block; ///< used for coded block pattern prediction (msmpeg4v3, wmv1)
137c8468 303 int16_t (*ac_val_base)[16];
115329f1 304 int16_t (*ac_val[3])[16]; ///< used for for mpeg4 AC prediction, all 3 arrays must be continuous
de6d9b64 305 int ac_pred;
115329f1 306 uint8_t *prev_pict_types; ///< previous picture types in bitstream order, used for mb skip
f943e138 307#define PREV_PICT_TYPES_BUFFER_SIZE 256
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308 int mb_skipped; ///< MUST BE SET only during DECODING
309 uint8_t *mbskip_table; /**< used to avoid copy if macroblock skipped (for black regions for example)
9dbcbd92 310 and used for b-frame encoding & decoding (contains skip table of next P Frame) */
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311 uint8_t *mbintra_table; ///< used to avoid setting {ac, dc, cbp}-pred stuff to zero on inter MB decoding
312 uint8_t *cbp_table; ///< used to store cbp, ac_pred for partitioned decoding
313 uint8_t *pred_dir_table; ///< used to store pred_dir for partitioned decoding
f7b47594 314 uint8_t *allocated_edge_emu_buffer;
9c3d33d6 315 uint8_t *edge_emu_buffer; ///< points into the middle of allocated_edge_emu_buffer
bb628dae 316 uint8_t *rd_scratchpad; ///< scratchpad for rate distortion mb decision
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317 uint8_t *obmc_scratchpad;
318 uint8_t *b_scratchpad; ///< scratchpad used for writing into write only buffers
de6d9b64 319
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320 int qscale; ///< QP
321 int chroma_qscale; ///< chroma QP
158c7f05 322 int lambda; ///< lagrange multipler used in rate distortion
115329f1 323 int lambda2; ///< (lambda*lambda) >> FF_LAMBDA_SHIFT
158c7f05 324 int *lambda_table;
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325 int adaptive_quant; ///< use adaptive quantization
326 int dquant; ///< qscale difference to prev qscale
327 int pict_type; ///< I_TYPE, P_TYPE, B_TYPE, ...
14e2a940 328 int last_pict_type; //FIXME removes
115329f1 329 int last_non_b_pict_type; ///< used for mpeg4 gmc b-frames & ratecontrol
14e2a940 330 int dropable;
de6d9b64 331 int frame_rate_index;
88e51e1f 332 int last_lambda_for[5]; ///< last lambda for a specific pict type
5e5c247a 333
de6d9b64 334 /* motion compensation */
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335 int unrestricted_mv; ///< mv can point outside of the coded picture
336 int h263_long_vectors; ///< use horrible h263v1 long vector mode
160d679c 337 int decode; ///< if 0 then decoding will be skipped (for encoding b frames for example)
277f4827 338
bb628dae 339 DSPContext dsp; ///< pointers for accelerated dsp functions
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340 int f_code; ///< forward MV resolution
341 int b_code; ///< backward MV resolution for B Frames (mpeg4)
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342 int16_t (*p_mv_table_base)[2];
343 int16_t (*b_forw_mv_table_base)[2];
344 int16_t (*b_back_mv_table_base)[2];
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345 int16_t (*b_bidir_forw_mv_table_base)[2];
346 int16_t (*b_bidir_back_mv_table_base)[2];
7bc9090a 347 int16_t (*b_direct_mv_table_base)[2];
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348 int16_t (*p_field_mv_table_base[2][2])[2];
349 int16_t (*b_field_mv_table_base[2][2][2])[2];
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350 int16_t (*p_mv_table)[2]; ///< MV table (1MV per MB) p-frame encoding
351 int16_t (*b_forw_mv_table)[2]; ///< MV table (1MV per MB) forward mode b-frame encoding
352 int16_t (*b_back_mv_table)[2]; ///< MV table (1MV per MB) backward mode b-frame encoding
353 int16_t (*b_bidir_forw_mv_table)[2]; ///< MV table (1MV per MB) bidir mode b-frame encoding
354 int16_t (*b_bidir_back_mv_table)[2]; ///< MV table (1MV per MB) bidir mode b-frame encoding
355 int16_t (*b_direct_mv_table)[2]; ///< MV table (1MV per MB) direct mode b-frame encoding
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356 int16_t (*p_field_mv_table[2][2])[2]; ///< MV table (2MV per MB) interlaced p-frame encoding
357 int16_t (*b_field_mv_table[2][2][2])[2];///< MV table (4MV per MB) interlaced b-frame encoding
358 uint8_t (*p_field_select_table[2]);
359 uint8_t (*b_field_select_table[2][2]);
115329f1 360 int me_method; ///< ME algorithm
de6d9b64 361 int mv_dir;
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362#define MV_DIR_BACKWARD 1
363#define MV_DIR_FORWARD 2
277f4827 364#define MV_DIRECT 4 ///< bidirectional mode where the difference equals the MV of the last P/S/I-Frame (mpeg4)
de6d9b64 365 int mv_type;
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366#define MV_TYPE_16X16 0 ///< 1 vector for the whole mb
367#define MV_TYPE_8X8 1 ///< 4 vectors (h263, mpeg4 4MV)
368#define MV_TYPE_16X8 2 ///< 2 vectors, one per 16x8 block
369#define MV_TYPE_FIELD 3 ///< 2 vectors, one per field
370#define MV_TYPE_DMV 4 ///< 2 vectors, special mpeg2 Dual Prime Vectors
371 /**motion vectors for a macroblock
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372 first coordinate : 0 = forward 1 = backward
373 second " : depend on type
374 third " : 0 = x, 1 = y
375 */
376 int mv[2][4][2];
377 int field_select[2][2];
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378 int last_mv[2][2][2]; ///< last MV, used for MV prediction in MPEG1 & B-frame MPEG4
379 uint8_t *fcode_tab; ///< smallest fcode needed for each MV
841f65f2 380 int16_t direct_scale_mv[2][64]; ///< precomputed to avoid divisions in ff_mpeg4_set_direct_mv
115329f1 381
1457ab52 382 MotionEstContext me;
de6d9b64 383
115329f1 384 int no_rounding; /**< apply no rounding to motion compensation (MPEG4, msmpeg4, ...)
91029be7 385 for b-frames rounding mode is allways 0 */
de6d9b64 386
160d679c 387 int hurry_up; /**< when set to 1 during decoding, b frames will be skipped
2417652e 388 when set to 2 idct/dequant will be skipped too */
115329f1 389
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390 /* macroblock layer */
391 int mb_x, mb_y;
9b8709d1 392 int mb_skip_run;
de6d9b64 393 int mb_intra;
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394 uint16_t *mb_type; ///< Table for candidate MB types for encoding
395#define CANDIDATE_MB_TYPE_INTRA 0x01
396#define CANDIDATE_MB_TYPE_INTER 0x02
397#define CANDIDATE_MB_TYPE_INTER4V 0x04
160d679c 398#define CANDIDATE_MB_TYPE_SKIPPED 0x08
7bc9090a 399//#define MB_TYPE_GMC 0x10
7f2fe444 400
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401#define CANDIDATE_MB_TYPE_DIRECT 0x10
402#define CANDIDATE_MB_TYPE_FORWARD 0x20
403#define CANDIDATE_MB_TYPE_BACKWARD 0x40
404#define CANDIDATE_MB_TYPE_BIDIR 0x80
405
406#define CANDIDATE_MB_TYPE_INTER_I 0x100
407#define CANDIDATE_MB_TYPE_FORWARD_I 0x200
408#define CANDIDATE_MB_TYPE_BACKWARD_I 0x400
409#define CANDIDATE_MB_TYPE_BIDIR_I 0x800
4278e7a6 410
277f4827 411 int block_index[6]; ///< index to current MB in block based arrays with edges
4278e7a6 412 int block_wrap[6];
7d1c3fc1 413 uint8_t *dest[3];
115329f1 414
7bc9090a 415 int *mb_index2xy; ///< mb_index -> mb_x + mb_y*mb_stride
4278e7a6 416
277f4827 417 /** matrix transmitted in the bitstream */
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418 uint16_t intra_matrix[64];
419 uint16_t chroma_intra_matrix[64];
420 uint16_t inter_matrix[64];
421 uint16_t chroma_inter_matrix[64];
1984f635 422#define QUANT_BIAS_SHIFT 8
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423 int intra_quant_bias; ///< bias for the quantizer
424 int inter_quant_bias; ///< bias for the quantizer
425 int min_qcoeff; ///< minimum encodable coefficient
426 int max_qcoeff; ///< maximum encodable coefficient
427 int ac_esc_length; ///< num of bits needed to encode the longest esc
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428 uint8_t *intra_ac_vlc_length;
429 uint8_t *intra_ac_vlc_last_length;
430 uint8_t *inter_ac_vlc_length;
431 uint8_t *inter_ac_vlc_last_length;
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432 uint8_t *luma_dc_vlc_length;
433 uint8_t *chroma_dc_vlc_length;
c442d75c 434#define UNI_AC_ENC_INDEX(run,level) ((run)*128 + (level))
477ab036 435
2d974017 436 int coded_score[8];
f2f6134b 437
277f4827 438 /** precomputed matrix (combine qscale and DCT renorm) */
7e4995c3
MN
439 int (*q_intra_matrix)[64];
440 int (*q_inter_matrix)[64];
642ccefb
MN
441 /** identical to the above but for MMX & these are not permutated, second 64 entries are bias*/
442 uint16_t (*q_intra_matrix16)[2][64];
443 uint16_t (*q_inter_matrix16)[2][64];
5e5c247a 444 int block_last_index[12]; ///< last non zero coefficient in block
2ad1516a 445 /* scantables */
68b51e58 446 DECLARE_ALIGNED_8(ScanTable, intra_scantable);
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MN
447 ScanTable intra_h_scantable;
448 ScanTable intra_v_scantable;
277f4827 449 ScanTable inter_scantable; ///< if inter == intra then intra should be used to reduce tha cache usage
115329f1 450
821cb11f
MN
451 /* noise reduction */
452 int (*dct_error_sum)[64];
453 int dct_count[2];
454 uint16_t (*dct_offset)[64];
de6d9b64 455
277f4827 456 void *opaque; ///< private data for the user
de6d9b64
FB
457
458 /* bit rate control */
0c1a9eda
ZK
459 int64_t wanted_bits;
460 int64_t total_bits;
115329f1 461 int frame_bits; ///< bits used for the current frame
277f4827 462 RateControlContext rc_context; ///< contains stuff only accessed in ratecontrol.c
9cdd6a24 463
098eefe1
MN
464 /* statistics, used for 2-pass encoding */
465 int mv_bits;
466 int header_bits;
467 int i_tex_bits;
468 int p_tex_bits;
469 int i_count;
66370d3f
MN
470 int f_count;
471 int b_count;
098eefe1 472 int skip_count;
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MN
473 int misc_bits; ///< cbp, mb_type
474 int last_bits; ///< temp var used for calculating the above vars
115329f1 475
7f2fe444 476 /* error concealment / resync */
7bc9090a 477 int error_count;
115329f1
DB
478 uint8_t *error_status_table; ///< table of the error status of each MB
479#define VP_START 1 ///< current MB is the first after a resync marker
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MN
480#define AC_ERROR 2
481#define DC_ERROR 4
482#define MV_ERROR 8
483#define AC_END 16
484#define DC_END 32
485#define MV_END 64
486//FIXME some prefix?
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DB
487
488 int resync_mb_x; ///< x position of last resync marker
489 int resync_mb_y; ///< y position of last resync marker
490 GetBitContext last_resync_gb; ///< used to search for the next resync marker
277f4827 491 int mb_num_left; ///< number of MBs left in this video packet (for partitioned Slices only)
115329f1 492 int next_p_frame_damaged; ///< set if the next p frame is damaged, to avoid showing trashed b frames
7f2fe444 493 int error_resilience;
115329f1 494
d7425f59 495 ParseContext parse_context;
098eefe1 496
102d3908 497 /* H.263 specific */
644d98a4 498 int gob_index;
dba019da 499 int obmc; ///< overlapped block motion compensation
115329f1 500
544286b3 501 /* H.263+ specific */
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502 int umvplus; ///< == H263+ && unrestricted_mv
503 int h263_aic; ///< Advanded INTRA Coding (AIC)
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MN
504 int h263_aic_dir; ///< AIC direction: 0 = left, 1 = top
505 int h263_slice_structured;
dba019da 506 int alt_inter_vlc; ///< alternative inter vlc
68b94c35 507 int modified_quant;
115329f1 508 int loop_filter;
b056e73c 509 int custom_pcf;
115329f1 510
de6d9b64 511 /* mpeg4 specific */
115329f1 512 int time_increment_bits; ///< number of bits to represent the fractional part of time
9dbcbd92 513 int last_time_base;
115329f1
DB
514 int time_base; ///< time in seconds of last I,P,S Frame
515 int64_t time; ///< time of current frame
0c1a9eda 516 int64_t last_non_b_time;
115329f1
DB
517 uint16_t pp_time; ///< time distance between the last 2 p,s,i frames
518 uint16_t pb_time; ///< time distance between the last b and p,s,i frame
0c1a9eda 519 uint16_t pp_field_time;
115329f1 520 uint16_t pb_field_time; ///< like above, just for interlaced
1a565432
FB
521 int shape;
522 int vol_sprite_usage;
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MN
523 int sprite_width;
524 int sprite_height;
525 int sprite_left;
526 int sprite_top;
527 int sprite_brightness_change;
73c8e514 528 int num_sprite_warping_points;
44eb4951 529 int real_sprite_warping_points;
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DB
530 int sprite_offset[2][2]; ///< sprite offset[isChroma][isMVY]
531 int sprite_delta[2][2]; ///< sprite_delta [isY][isMVY]
532 int sprite_shift[2]; ///< sprite shift [isChroma]
73c8e514 533 int mcsel;
1a565432 534 int quant_precision;
115329f1 535 int quarter_sample; ///< 1->qpel, 0->half pel ME/MC
cc9ba006 536 int scalability;
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MN
537 int hierachy_type;
538 int enhancement_type;
cc9ba006
MN
539 int new_pred;
540 int reduced_res_vop;
0da71265 541 int aspect_ratio_info; //FIXME remove
cc9ba006
MN
542 int sprite_warping_accuracy;
543 int low_latency_sprite;
115329f1
DB
544 int data_partitioning; ///< data partitioning flag from header
545 int partitioned_frame; ///< is current frame partitioned
546 int rvlc; ///< reversible vlc
277f4827 547 int resync_marker; ///< could this stream contain resync markers
115329f1 548 int low_delay; ///< no reordering needed / has no b-frames
1ff662cc 549 int vo_type;
115329f1
DB
550 int vol_control_parameters; ///< does the stream contain the low_delay flag, used to workaround buggy encoders
551 int intra_dc_threshold; ///< QP above whch the ac VLC should be used for intra dc
7f12a978 552 int use_intra_dc_vlc;
115329f1
DB
553 PutBitContext tex_pb; ///< used for data partitioned VOPs
554 PutBitContext pb2; ///< used for data partitioned VOPs
d930ef19 555 int mpeg_quant;
115329f1
DB
556 int t_frame; ///< time distance of first I -> B, used for interlaced b frames
557 int padding_bug_score; ///< used to detect the VERY common padding bug in MPEG4
44eb4951
MN
558
559 /* divx specific, used to workaround (many) bugs in divx5 */
560 int divx_version;
561 int divx_build;
d5a21172 562 int divx_packed;
0c1a9eda 563 uint8_t *bitstream_buffer; //Divx 5.01 puts several frames in a single one, this is used to reorder them
eec1c6b9 564 int bitstream_buffer_size;
f038fe8b 565 unsigned int allocated_bitstream_buffer_size;
115329f1 566
7da71a5c 567 int xvid_build;
115329f1 568
4d2858de 569 /* lavc specific stuff, used to workaround bugs in libavcodec */
4d2858de 570 int lavc_build;
115329f1 571
de6d9b64 572 /* RV10 specific */
115329f1 573 int rv10_version; ///< RV10 version: 0 or 3
de6d9b64 574 int rv10_first_dc_coded[3];
115329f1 575
de6d9b64
FB
576 /* MJPEG specific */
577 struct MJpegContext *mjpeg_ctx;
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DB
578 int mjpeg_vsample[3]; ///< vertical sampling factors, default = {2, 1, 1}
579 int mjpeg_hsample[3]; ///< horizontal sampling factors, default = {2, 1, 1}
580 int mjpeg_write_tables; ///< do we want to have quantisation- and huffmantables in the jpeg file ?
581 int mjpeg_data_only_frames; ///< frames only with SOI, SOS and EOI markers
de6d9b64
FB
582
583 /* MSMPEG4 specific */
584 int mv_table_index;
585 int rl_table_index;
586 int rl_chroma_table_index;
587 int dc_table_index;
588 int use_skip_mb_code;
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DB
589 int slice_height; ///< in macroblocks
590 int first_slice_line; ///< used in mpeg4 too to handle resync markers
ae40484c 591 int flipflop_rounding;
277f4827 592 int msmpeg4_version; ///< 0=not msmpeg4, 1=mp41, 2=mp42, 3=mp43/divx3 4=wmv1/7 5=wmv2/8
0151a6f5
MN
593 int per_mb_rl_table;
594 int esc3_level_length;
595 int esc3_run_length;
277f4827 596 /** [mb_intra][isChroma][level][run][last] */
6b460aa3 597 int (*ac_stats)[2][MAX_LEVEL+1][MAX_RUN+1][2];
de0f2f4c 598 int inter_intra_pred;
1457ab52 599 int mspel;
0151a6f5 600
de6d9b64
FB
601 /* decompression specific */
602 GetBitContext gb;
603
1e491e29 604 /* Mpeg1 specific */
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DB
605 int gop_picture_number; ///< index of the first picture of a GOP based on fake_pic_num & mpeg1 specific
606 int last_mv_dir; ///< last mv_dir, used for b frame encoding
0da71265 607 int broken_link; ///< no_output_of_prior_pics_flag
115329f1
DB
608 uint8_t *vbv_delay_ptr; ///< pointer to vbv_delay in the bitstream
609
de6d9b64
FB
610 /* MPEG2 specific - I wish I had not to support this mess. */
611 int progressive_sequence;
612 int mpeg_f_code[2][2];
613 int picture_structure;
614/* picture type */
615#define PICT_TOP_FIELD 1
616#define PICT_BOTTOM_FIELD 2
617#define PICT_FRAME 3
618
619 int intra_dc_precision;
620 int frame_pred_frame_dct;
621 int top_field_first;
622 int concealment_motion_vectors;
623 int q_scale_type;
624 int intra_vlc_format;
625 int alternate_scan;
626 int repeat_first_field;
627 int chroma_420_type;
5e5c247a
IK
628 int chroma_format;
629#define CHROMA_420 1
630#define CHROMA_422 2
631#define CHROMA_444 3
ffdff4d7
IK
632 int chroma_x_shift;//depend on pix_format, that depend on chroma_format
633 int chroma_y_shift;
5e5c247a 634
de6d9b64 635 int progressive_frame;
de6d9b64
FB
636 int full_pel[2];
637 int interlaced_dct;
de6d9b64 638 int first_slice;
c3bf0288 639 int first_field; ///< is 1 for the first field of a field picture 0 otherwise
ba58dabc 640
644d98a4 641 /* RTP specific */
e4eadb4b 642 int rtp_mode;
115329f1 643
0c1a9eda 644 uint8_t *ptr_lastgob;
a579db0c
IK
645 int swap_uv;//vcr2 codec is mpeg2 varint with UV swaped
646 short * pblocks[12];
115329f1
DB
647
648 DCTELEM (*block)[64]; ///< points to one of the following blocks
702497f8 649 DCTELEM (*blocks)[8][64]; // for HQ mode we need to keep the best block
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MN
650 int (*decode_mb)(struct MpegEncContext *s, DCTELEM block[6][64]); // used by some codecs to avoid a switch()
651#define SLICE_OK 0
652#define SLICE_ERROR -1
c3bf0288
MN
653#define SLICE_END -2 ///<end marker found
654#define SLICE_NOEND -3 ///<no end marker or error found but mb count exceeded
115329f1
DB
655
656 void (*dct_unquantize_mpeg1_intra)(struct MpegEncContext *s,
67309e49 657 DCTELEM *block/*align 16*/, int n, int qscale);
115329f1 658 void (*dct_unquantize_mpeg1_inter)(struct MpegEncContext *s,
67309e49 659 DCTELEM *block/*align 16*/, int n, int qscale);
115329f1 660 void (*dct_unquantize_mpeg2_intra)(struct MpegEncContext *s,
67309e49 661 DCTELEM *block/*align 16*/, int n, int qscale);
115329f1 662 void (*dct_unquantize_mpeg2_inter)(struct MpegEncContext *s,
d50635cd 663 DCTELEM *block/*align 16*/, int n, int qscale);
115329f1 664 void (*dct_unquantize_h263_intra)(struct MpegEncContext *s,
d50635cd 665 DCTELEM *block/*align 16*/, int n, int qscale);
115329f1 666 void (*dct_unquantize_h263_inter)(struct MpegEncContext *s,
d50635cd 667 DCTELEM *block/*align 16*/, int n, int qscale);
115329f1 668 void (*dct_unquantize_h261_intra)(struct MpegEncContext *s,
c6148de2 669 DCTELEM *block/*align 16*/, int n, int qscale);
115329f1 670 void (*dct_unquantize_h261_inter)(struct MpegEncContext *s,
c6148de2 671 DCTELEM *block/*align 16*/, int n, int qscale);
d50635cd
MN
672 void (*dct_unquantize_intra)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both)
673 DCTELEM *block/*align 16*/, int n, int qscale);
674 void (*dct_unquantize_inter)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both)
67309e49
MN
675 DCTELEM *block/*align 16*/, int n, int qscale);
676 int (*dct_quantize)(struct MpegEncContext *s, DCTELEM *block/*align 16*/, int n, int qscale, int *overflow);
3a87ac94 677 int (*fast_dct_quantize)(struct MpegEncContext *s, DCTELEM *block/*align 16*/, int n, int qscale, int *overflow);
783df5f3 678 void (*denoise_dct)(struct MpegEncContext *s, DCTELEM *block);
de6d9b64
FB
679} MpegEncContext;
680
4d2858de 681
defdfc9a 682int DCT_common_init(MpegEncContext *s);
3edcacde 683void MPV_decode_defaults(MpegEncContext *s);
de6d9b64
FB
684int MPV_common_init(MpegEncContext *s);
685void MPV_common_end(MpegEncContext *s);
ffdff4d7 686void MPV_decode_mb(MpegEncContext *s, DCTELEM block[12][64]);
d6db1c9c 687int MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx);
de6d9b64 688void MPV_frame_end(MpegEncContext *s);
1457ab52
MN
689int MPV_encode_init(AVCodecContext *avctx);
690int MPV_encode_end(AVCodecContext *avctx);
691int MPV_encode_picture(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data);
21af69f7
FB
692#ifdef HAVE_MMX
693void MPV_common_init_mmx(MpegEncContext *s);
694#endif
e0580f8c
FH
695#ifdef ARCH_ALPHA
696void MPV_common_init_axp(MpegEncContext *s);
697#endif
c7e07931
MO
698#ifdef HAVE_MLIB
699void MPV_common_init_mlib(MpegEncContext *s);
700#endif
5917d17c
LS
701#ifdef HAVE_MMI
702void MPV_common_init_mmi(MpegEncContext *s);
703#endif
83f238cb 704#ifdef ARCH_ARMV4L
d43b10ec 705void MPV_common_init_armv4l(MpegEncContext *s);
83f238cb 706#endif
05c4072b
MN
707#ifdef ARCH_POWERPC
708void MPV_common_init_ppc(MpegEncContext *s);
709#endif
0c1a9eda 710extern void (*draw_edges)(uint8_t *buf, int wrap, int width, int height, int w);
0c1a9eda 711void ff_copy_bits(PutBitContext *pb, uint8_t *src, int length);
7f2fe444 712void ff_clean_intra_table_entries(MpegEncContext *s);
3d2e8cce 713void ff_init_scantable(uint8_t *, ScanTable *st, const uint8_t *src_scantable);
640950c7 714void ff_draw_horiz_band(MpegEncContext *s, int y, int h);
115329f1 715void ff_emulated_edge_mc(uint8_t *buf, uint8_t *src, int linesize, int block_w, int block_h,
1457ab52 716 int src_x, int src_y, int w, int h);
bb463d81 717#define END_NOT_FOUND -100
e4cb187d
MN
718int ff_combine_frame(ParseContext *pc, int next, uint8_t **buf, int *buf_size);
719void ff_parse_close(AVCodecParserContext *s);
7a06ff14 720void ff_mpeg_flush(AVCodecContext *avctx);
0c9bbaec 721void ff_print_debug_info(MpegEncContext *s, AVFrame *pict);
191e8ca7 722void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix);
5f194811 723int ff_find_unused_picture(MpegEncContext *s, int shared);
821cb11f 724void ff_denoise_dct(MpegEncContext *s, DCTELEM *block);
c62c07d3 725void ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src);
82fcbc14 726const uint8_t *ff_find_start_code(const uint8_t *p, const uint8_t *end, uint32_t *state);
59b571c1 727
46b4feec
MN
728void ff_er_frame_start(MpegEncContext *s);
729void ff_er_frame_end(MpegEncContext *s);
730void ff_er_add_slice(MpegEncContext *s, int startx, int starty, int endx, int endy, int status);
731
732
a33c7159 733extern enum PixelFormat ff_yuv420p_list[2];
de6d9b64 734
7d1c3fc1 735void ff_init_block_index(MpegEncContext *s);
4d2858de
MN
736
737static inline void ff_update_block_index(MpegEncContext *s){
178fcca8
MN
738 const int block_size= 8>>s->avctx->lowres;
739
4d2858de
MN
740 s->block_index[0]+=2;
741 s->block_index[1]+=2;
742 s->block_index[2]+=2;
743 s->block_index[3]+=2;
744 s->block_index[4]++;
745 s->block_index[5]++;
178fcca8
MN
746 s->dest[0]+= 2*block_size;
747 s->dest[1]+= block_size;
748 s->dest[2]+= block_size;
4d2858de
MN
749}
750
4d2a4834 751static inline int get_bits_diff(MpegEncContext *s){
fe455f33 752 const int bits= put_bits_count(&s->pb);
4d2a4834
MN
753 const int last= s->last_bits;
754
755 s->last_bits = bits;
756
757 return bits - last;
758}
4d2858de 759
de6d9b64 760/* motion_est.c */
9dbcbd92
MN
761void ff_estimate_p_frame_motion(MpegEncContext * s,
762 int mb_x, int mb_y);
763void ff_estimate_b_frame_motion(MpegEncContext * s,
764 int mb_x, int mb_y);
765int ff_get_best_fcode(MpegEncContext * s, int16_t (*mv_table)[2], int type);
766void ff_fix_long_p_mvs(MpegEncContext * s);
bb198e19
MN
767void ff_fix_long_mvs(MpegEncContext * s, uint8_t *field_select_table, int field_select,
768 int16_t (*mv_table)[2], int f_code, int type, int truncate);
1457ab52 769void ff_init_me(MpegEncContext *s);
f5fb6b34 770int ff_pre_estimate_p_frame_motion(MpegEncContext * s, int mb_x, int mb_y);
155ec6ed 771inline int ff_epzs_motion_search(MpegEncContext * s, int *mx_ptr, int *my_ptr,
115329f1
DB
772 int P[10][2], int src_index, int ref_index, int16_t (*last_mv)[2],
773 int ref_mv_scale, int size, int h);
155ec6ed
MN
774int inline ff_get_mb_score(MpegEncContext * s, int mx, int my, int src_index,
775 int ref_index, int size, int h, int add_rate);
4d2858de 776
de6d9b64 777/* mpeg12.c */
191e8ca7
MR
778extern const uint16_t ff_mpeg1_default_intra_matrix[64];
779extern const uint16_t ff_mpeg1_default_non_intra_matrix[64];
c26ae41d 780extern const uint8_t ff_mpeg1_dc_scale_table[128];
de6d9b64
FB
781
782void mpeg1_encode_picture_header(MpegEncContext *s, int picture_number);
783void mpeg1_encode_mb(MpegEncContext *s,
784 DCTELEM block[6][64],
785 int motion_x, int motion_y);
0151a6f5 786void ff_mpeg1_encode_init(MpegEncContext *s);
9b8709d1
MN
787void ff_mpeg1_encode_slice_header(MpegEncContext *s);
788void ff_mpeg1_clean_buffers(MpegEncContext *s);
e96682e6 789int ff_mpeg1_find_frame_end(ParseContext *pc, const uint8_t *buf, int buf_size);
de6d9b64 790
4d2858de 791
277f4827 792/** RLTable. */
de6d9b64 793typedef struct RLTable {
115329f1
DB
794 int n; ///< number of entries of table_vlc minus 1
795 int last; ///< number of values for last = 0
0c1a9eda
ZK
796 const uint16_t (*table_vlc)[2];
797 const int8_t *table_run;
798 const int8_t *table_level;
115329f1
DB
799 uint8_t *index_run[2]; ///< encoding only
800 int8_t *max_level[2]; ///< encoding & decoding
801 int8_t *max_run[2]; ///< encoding & decoding
277f4827 802 VLC vlc; ///< decoding only deprected FIXME remove
115329f1 803 RL_VLC_ELEM *rl_vlc[32]; ///< decoding only
de6d9b64
FB
804} RLTable;
805
073c2593
BP
806void init_rl(RLTable *rl, int use_static);
807void init_vlc_rl(RLTable *rl, int use_static);
de6d9b64 808
3232bc88 809static inline int get_rl_index(const RLTable *rl, int last, int run, int level)
de6d9b64
FB
810{
811 int index;
812 index = rl->index_run[last][run];
813 if (index >= rl->n)
814 return rl->n;
815 if (level > rl->max_level[last][run])
816 return rl->n;
817 return index + level - 1;
818}
819
c26ae41d
MN
820extern const uint8_t ff_mpeg4_y_dc_scale_table[32];
821extern const uint8_t ff_mpeg4_c_dc_scale_table[32];
822extern const uint8_t ff_aic_dc_scale_table[32];
0c1a9eda
ZK
823extern const int16_t ff_mpeg4_default_intra_matrix[64];
824extern const int16_t ff_mpeg4_default_non_intra_matrix[64];
332f9ac4
MN
825extern const uint8_t ff_h263_chroma_qscale_table[32];
826extern const uint8_t ff_h263_loop_filter_strength[32];
68b94c35 827
5f6c92d4
MN
828/* h261.c */
829void ff_h261_loop_filter(MpegEncContext *s);
1c3990db
MN
830void ff_h261_reorder_mb_index(MpegEncContext* s);
831void ff_h261_encode_mb(MpegEncContext *s,
832 DCTELEM block[6][64],
833 int motion_x, int motion_y);
834void ff_h261_encode_picture_header(MpegEncContext * s, int picture_number);
835void ff_h261_encode_init(MpegEncContext *s);
5f6c92d4 836
554daa24 837
e96682e6 838/* h263.c, h263dec.c */
1457ab52 839int ff_h263_decode_init(AVCodecContext *avctx);
115329f1 840int ff_h263_decode_frame(AVCodecContext *avctx,
1457ab52 841 void *data, int *data_size,
0c1a9eda 842 uint8_t *buf, int buf_size);
1457ab52 843int ff_h263_decode_end(AVCodecContext *avctx);
115329f1 844void h263_encode_mb(MpegEncContext *s,
de6d9b64
FB
845 DCTELEM block[6][64],
846 int motion_x, int motion_y);
115329f1 847void mpeg4_encode_mb(MpegEncContext *s,
d6231b9e
MN
848 DCTELEM block[6][64],
849 int motion_x, int motion_y);
de6d9b64 850void h263_encode_picture_header(MpegEncContext *s, int picture_number);
44a2950f 851void ff_flv_encode_picture_header(MpegEncContext *s, int picture_number);
ba58dabc 852void h263_encode_gob_header(MpegEncContext * s, int mb_line);
137c8468 853int16_t *h263_pred_motion(MpegEncContext * s, int block, int dir,
de6d9b64 854 int *px, int *py);
115329f1 855void mpeg4_pred_ac(MpegEncContext * s, DCTELEM *block, int n,
de6d9b64 856 int dir);
91029be7 857void ff_set_mpeg4_time(MpegEncContext * s, int picture_number);
de6d9b64 858void mpeg4_encode_picture_header(MpegEncContext *s, int picture_number);
696e1bb3 859#ifdef CONFIG_ENCODERS
45870f57 860void h263_encode_init(MpegEncContext *s);
696e1bb3
GP
861#else
862static void h263_encode_init(MpegEncContext *s) {assert(0);}
863#endif
de6d9b64
FB
864void h263_decode_init_vlc(MpegEncContext *s);
865int h263_decode_picture_header(MpegEncContext *s);
4d2858de 866int ff_h263_decode_gob_header(MpegEncContext *s);
b704e742 867int ff_mpeg4_decode_picture_header(MpegEncContext * s, GetBitContext *gb);
7d1c3fc1 868void ff_h263_update_motion_val(MpegEncContext * s);
cdb4e730 869void ff_h263_loop_filter(MpegEncContext * s);
554daa24 870void ff_set_qscale(MpegEncContext * s, int qscale);
ba58dabc
MN
871int ff_h263_decode_mba(MpegEncContext *s);
872void ff_h263_encode_mba(MpegEncContext *s);
b704e742 873
de6d9b64 874int intel_h263_decode_picture_header(MpegEncContext *s);
d4f5d74a 875int flv_h263_decode_picture_header(MpegEncContext *s);
4d2858de
MN
876int ff_h263_decode_mb(MpegEncContext *s,
877 DCTELEM block[6][64]);
fcfee63b
MN
878int ff_mpeg4_decode_mb(MpegEncContext *s,
879 DCTELEM block[6][64]);
de6d9b64 880int h263_get_picture_format(int width, int height);
7f2fe444
MN
881void ff_mpeg4_encode_video_packet_header(MpegEncContext *s);
882void ff_mpeg4_clean_buffers(MpegEncContext *s);
883void ff_mpeg4_stuffing(PutBitContext * pbc);
884void ff_mpeg4_init_partitions(MpegEncContext *s);
885void ff_mpeg4_merge_partitions(MpegEncContext *s);
c5d309f2 886void ff_clean_mpeg4_qscales(MpegEncContext *s);
9e4c6948 887void ff_clean_h263_qscales(MpegEncContext *s);
4d2858de
MN
888int ff_mpeg4_decode_partitions(MpegEncContext *s);
889int ff_mpeg4_get_video_packet_prefix_length(MpegEncContext *s);
890int ff_h263_resync(MpegEncContext *s);
891int ff_h263_get_gob_height(MpegEncContext *s);
7bc9090a 892int ff_mpeg4_set_direct_mv(MpegEncContext *s, int mx, int my);
4df8ca9d 893int ff_h263_round_chroma(int x);
5e13a730 894void ff_h263_encode_motion(MpegEncContext * s, int val, int f_code);
4df8ca9d 895int ff_mpeg4_find_frame_end(ParseContext *pc, const uint8_t *buf, int buf_size);
4d2858de 896
de6d9b64
FB
897
898/* rv10.c */
899void rv10_encode_picture_header(MpegEncContext *s, int picture_number);
900int rv_decode_dc(MpegEncContext *s, int n);
d0271e8a 901void rv20_encode_picture_header(MpegEncContext *s, int picture_number);
de6d9b64 902
4d2858de 903
de6d9b64
FB
904/* msmpeg4.c */
905void msmpeg4_encode_picture_header(MpegEncContext * s, int picture_number);
ae40484c 906void msmpeg4_encode_ext_header(MpegEncContext * s);
115329f1 907void msmpeg4_encode_mb(MpegEncContext * s,
de6d9b64
FB
908 DCTELEM block[6][64],
909 int motion_x, int motion_y);
de6d9b64 910int msmpeg4_decode_picture_header(MpegEncContext * s);
ae40484c 911int msmpeg4_decode_ext_header(MpegEncContext * s, int buf_size);
0151a6f5
MN
912int ff_msmpeg4_decode_init(MpegEncContext *s);
913void ff_msmpeg4_encode_init(MpegEncContext *s);
1457ab52 914int ff_wmv2_decode_picture_header(MpegEncContext * s);
b1609412 915int ff_wmv2_decode_secondary_picture_header(MpegEncContext * s);
1457ab52
MN
916void ff_wmv2_add_mb(MpegEncContext *s, DCTELEM block[6][64], uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr);
917void ff_mspel_motion(MpegEncContext *s,
0c1a9eda
ZK
918 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
919 uint8_t **ref_picture, op_pixels_func (*pix_op)[4],
1457ab52
MN
920 int motion_x, int motion_y, int h);
921int ff_wmv2_encode_picture_header(MpegEncContext * s, int picture_number);
115329f1 922void ff_wmv2_encode_mb(MpegEncContext * s,
1457ab52
MN
923 DCTELEM block[6][64],
924 int motion_x, int motion_y);
de6d9b64 925
c009df3f 926/* mjpeg.c */
de6d9b64
FB
927int mjpeg_init(MpegEncContext *s);
928void mjpeg_close(MpegEncContext *s);
115329f1 929void mjpeg_encode_mb(MpegEncContext *s,
de6d9b64
FB
930 DCTELEM block[6][64]);
931void mjpeg_picture_header(MpegEncContext *s);
932void mjpeg_picture_trailer(MpegEncContext *s);
9c3d33d6 933void ff_mjpeg_stuffing(PutBitContext * pbc);
8b4c7dbc 934
4d2858de 935
cd4af68a 936#endif /* AVCODEC_MPEGVIDEO_H */
0de9926f 937