Remove unnecessary get_bits.h #includes and add missing headers where needed.
[libav.git] / libavcodec / mpegvideo.h
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1/*
2 * Generic DCT based hybrid video encoder
406792e7 3 * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
8f2ab833 4 * Copyright (c) 2002-2004 Michael Niedermayer
de6d9b64 5 *
2912e87a 6 * This file is part of Libav.
b78e7197 7 *
2912e87a 8 * Libav is free software; you can redistribute it and/or
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9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
b78e7197 11 * version 2.1 of the License, or (at your option) any later version.
de6d9b64 12 *
2912e87a 13 * Libav is distributed in the hope that it will be useful,
de6d9b64 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
de6d9b64 17 *
ff4ec49e 18 * You should have received a copy of the GNU Lesser General Public
2912e87a 19 * License along with Libav; if not, write to the Free Software
5509bffa 20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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21 */
22
983e3246 23/**
ba87f080 24 * @file
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25 * mpegvideo header.
26 */
115329f1 27
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28#ifndef AVCODEC_MPEGVIDEO_H
29#define AVCODEC_MPEGVIDEO_H
cd4af68a 30
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31#include <float.h>
32
657ccb5a 33#include "avcodec.h"
e74433a8 34#include "blockdsp.h"
54974c62 35#include "error_resilience.h"
a9aee08d 36#include "fdctdsp.h"
9106a698 37#include "get_bits.h"
0338c396 38#include "h263dsp.h"
f4fed5a2 39#include "hpeldsp.h"
e3fcb143 40#include "idctdsp.h"
21c90d86 41#include "internal.h"
2d604443 42#include "me_cmp.h"
149fa0b7 43#include "motion_est.h"
7061bf09 44#include "mpegpicture.h"
fab9df63 45#include "mpegvideodsp.h"
8d686ca5 46#include "mpegvideoencdsp.h"
f46bb608 47#include "pixblockdsp.h"
b2755007 48#include "put_bits.h"
0de9926f 49#include "ratecontrol.h"
4067d81b 50#include "parser.h"
925b80d6 51#include "mpegutils.h"
3bfe9260 52#include "mpeg12data.h"
368f5035 53#include "qpeldsp.h"
759001c5 54#include "thread.h"
8c53d39e 55#include "videodsp.h"
5c91a675 56
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57#include "libavutil/opt.h"
58
e8b78541 59#define MAX_THREADS 16
9c3d33d6 60
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61#define MAX_B_FRAMES 16
62
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63/* Start codes. */
64#define SEQ_END_CODE 0x000001b7
65#define SEQ_START_CODE 0x000001b3
66#define GOP_START_CODE 0x000001b8
67#define PICTURE_START_CODE 0x00000100
68#define SLICE_MIN_START_CODE 0x00000101
69#define SLICE_MAX_START_CODE 0x000001af
70#define EXT_START_CODE 0x000001b5
71#define USER_START_CODE 0x000001b2
72
277f4827 73/**
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74 * MpegEncContext.
75 */
de6d9b64 76typedef struct MpegEncContext {
297d9cb3 77 AVClass *class;
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78
79 int y_dc_scale, c_dc_scale;
80 int ac_pred;
81 int block_last_index[12]; ///< last non zero coefficient in block
82 int h263_aic; ///< Advanded INTRA Coding (AIC)
83
84 /* scantables */
85 ScanTable inter_scantable; ///< if inter == intra then intra should be used to reduce tha cache usage
86 ScanTable intra_scantable;
87 ScanTable intra_h_scantable;
88 ScanTable intra_v_scantable;
89
90 /* WARNING: changes above this line require updates to hardcoded
91 * offsets used in asm. */
92
58f26ba9 93 struct AVCodecContext *avctx;
de6d9b64 94 /* the following parameters must be initialized before encoding */
115329f1 95 int width, height;///< picture size. must be a multiple of 16
de6d9b64 96 int gop_size;
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97 int intra_only; ///< if true, only intra pictures are generated
98 int bit_rate; ///< wanted bit rate
99 enum OutputFormat out_format; ///< output format
100 int h263_pred; ///< use mpeg4/h263 ac/dc predictions
91ba181a 101 int pb_frame; ///< PB frame mode (0 = none, 1 = base, 2 = improved)
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102
103/* the following codec id fields are deprecated in favor of codec_id */
115329f1 104 int h263_plus; ///< h263 plus headers
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105 int h263_flv; ///< use flv h263 header
106
36ef5369 107 enum AVCodecID codec_id; /* see AV_CODEC_ID_xxx */
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108 int fixed_qscale; ///< fixed qscale if non zero
109 int encoding; ///< true if we are encoding (vs decoding)
115329f1 110 int max_b_frames; ///< max number of b-frames for encoding
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111 int luma_elim_threshold;
112 int chroma_elim_threshold;
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113 int strict_std_compliance; ///< strictly follow the std (MPEG4, ...)
114 int workaround_bugs; ///< workaround bugs in encoders which cannot be detected automatically
17662955 115 int codec_tag; ///< internal codec_tag upper case converted from avctx codec_tag
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116 /* the following fields are managed internally by the encoder */
117
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118 /* sequence parameters */
119 int context_initialized;
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120 int input_picture_number; ///< used to set pic->display_picture_number, should not be used for/by anything else
121 int coded_picture_number; ///< used to set pic->coded_picture_number, should not be used for/by anything else
1031fabd 122 int picture_number; //FIXME remove, unclear definition
115329f1 123 int picture_in_gop_number; ///< 0-> first pic in gop, ...
115329f1 124 int mb_width, mb_height; ///< number of MBs horizontally & vertically
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125 int mb_stride; ///< mb_width+1 used for some arrays to allow simple addressing of left & top MBs without sig11
126 int b8_stride; ///< 2*mb_width+1 used for some 8x8 block arrays to allow simple addressing
bb628dae 127 int h_edge_pos, v_edge_pos;///< horizontal / vertical position of the right/bottom edge (pixel replication)
115329f1 128 int mb_num; ///< number of MBs of a picture
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129 ptrdiff_t linesize; ///< line size, in bytes, may be different from width
130 ptrdiff_t uvlinesize; ///< line size, for chroma in bytes, may be different from width
115329f1 131 Picture *picture; ///< main picture buffer
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132 Picture **input_picture; ///< next pictures on display order for encoding
133 Picture **reordered_input_picture; ///< pointer to the next pictures in codedorder for encoding
115329f1 134
187105ff 135 int64_t user_specified_pts; ///< last non-zero pts from AVFrame which was passed into avcodec_encode_video2()
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136 /**
137 * pts difference between the first and second input frame, used for
138 * calculating dts of the first frame when there's a delay */
139 int64_t dts_delta;
140 /**
141 * reordered pts to be used as dts for the next output frame when there's
142 * a delay */
143 int64_t reordered_pts;
d0a2f0af 144
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145 /** bit output */
146 PutBitContext pb;
147
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148 int start_mb_y; ///< start mb_y of this thread (so current thread should process start_mb_y <= row < end_mb_y)
149 int end_mb_y; ///< end mb_y of this thread (so current thread should process start_mb_y <= row < end_mb_y)
150 struct MpegEncContext *thread_context[MAX_THREADS];
881a5e04 151 int slice_context_count; ///< number of used thread_contexts
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152
153 /**
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154 * copy of the previous picture structure.
155 * note, linesize & data, might not match the previous picture (for field pictures)
156 */
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157 Picture last_picture;
158
159 /**
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160 * copy of the next picture structure.
161 * note, linesize & data, might not match the next picture (for field pictures)
162 */
163 Picture next_picture;
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164
165 /**
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166 * copy of the source picture structure for encoding.
167 * note, linesize & data, might not match the source picture (for field pictures)
168 */
169 Picture new_picture;
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170
171 /**
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172 * copy of the current picture structure.
173 * note, linesize & data, might not match the current picture (for field pictures)
174 */
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175 Picture current_picture; ///< buffer to store the decompressed current picture
176
b536d0aa 177 Picture *last_picture_ptr; ///< pointer to the previous picture.
115329f1 178 Picture *next_picture_ptr; ///< pointer to the next picture (for bidir pred)
b536d0aa 179 Picture *current_picture_ptr; ///< pointer to the current picture
115329f1 180 int last_dc[3]; ///< last DC values for MPEG1
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181 int16_t *dc_val_base;
182 int16_t *dc_val[3]; ///< used for mpeg4 DC prediction, all 3 arrays must be continuous
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183 const uint8_t *y_dc_scale_table; ///< qscale -> y_dc_scale table
184 const uint8_t *c_dc_scale_table; ///< qscale -> c_dc_scale table
332f9ac4 185 const uint8_t *chroma_qscale_table; ///< qscale -> chroma_qscale (h263)
137c8468 186 uint8_t *coded_block_base;
277f4827 187 uint8_t *coded_block; ///< used for coded block pattern prediction (msmpeg4v3, wmv1)
137c8468 188 int16_t (*ac_val_base)[16];
115329f1 189 int16_t (*ac_val[3])[16]; ///< used for for mpeg4 AC prediction, all 3 arrays must be continuous
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190 int mb_skipped; ///< MUST BE SET only during DECODING
191 uint8_t *mbskip_table; /**< used to avoid copy if macroblock skipped (for black regions for example)
9dbcbd92 192 and used for b-frame encoding & decoding (contains skip table of next P Frame) */
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193 uint8_t *mbintra_table; ///< used to avoid setting {ac, dc, cbp}-pred stuff to zero on inter MB decoding
194 uint8_t *cbp_table; ///< used to store cbp, ac_pred for partitioned decoding
195 uint8_t *pred_dir_table; ///< used to store pred_dir for partitioned decoding
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196
197 ScratchpadContext sc;
de6d9b64 198
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199 int qscale; ///< QP
200 int chroma_qscale; ///< chroma QP
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201 unsigned int lambda; ///< lagrange multipler used in rate distortion
202 unsigned int lambda2; ///< (lambda*lambda) >> FF_LAMBDA_SHIFT
158c7f05 203 int *lambda_table;
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204 int adaptive_quant; ///< use adaptive quantization
205 int dquant; ///< qscale difference to prev qscale
975a1447 206 int pict_type; ///< AV_PICTURE_TYPE_I, AV_PICTURE_TYPE_P, AV_PICTURE_TYPE_B, ...
14e2a940 207 int last_pict_type; //FIXME removes
115329f1 208 int last_non_b_pict_type; ///< used for mpeg4 gmc b-frames & ratecontrol
ba0c8981 209 int droppable;
de6d9b64 210 int frame_rate_index;
88e51e1f 211 int last_lambda_for[5]; ///< last lambda for a specific pict type
c52f5d66 212 int skipdct; ///< skip dct and code zero residual
5e5c247a 213
de6d9b64 214 /* motion compensation */
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215 int unrestricted_mv; ///< mv can point outside of the coded picture
216 int h263_long_vectors; ///< use horrible h263v1 long vector mode
277f4827 217
e74433a8 218 BlockDSPContext bdsp;
a9aee08d 219 FDCTDSPContext fdsp;
f4fed5a2 220 HpelDSPContext hdsp;
e3fcb143 221 IDCTDSPContext idsp;
2d604443 222 MECmpContext mecc;
fab9df63 223 MpegVideoDSPContext mdsp;
8d686ca5 224 MpegvideoEncDSPContext mpvencdsp;
f46bb608 225 PixblockDSPContext pdsp;
368f5035 226 QpelDSPContext qdsp;
8c53d39e 227 VideoDSPContext vdsp;
0338c396 228 H263DSPContext h263dsp;
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229 int f_code; ///< forward MV resolution
230 int b_code; ///< backward MV resolution for B Frames (mpeg4)
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231 int16_t (*p_mv_table_base)[2];
232 int16_t (*b_forw_mv_table_base)[2];
233 int16_t (*b_back_mv_table_base)[2];
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234 int16_t (*b_bidir_forw_mv_table_base)[2];
235 int16_t (*b_bidir_back_mv_table_base)[2];
7bc9090a 236 int16_t (*b_direct_mv_table_base)[2];
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237 int16_t (*p_field_mv_table_base[2][2])[2];
238 int16_t (*b_field_mv_table_base[2][2][2])[2];
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239 int16_t (*p_mv_table)[2]; ///< MV table (1MV per MB) p-frame encoding
240 int16_t (*b_forw_mv_table)[2]; ///< MV table (1MV per MB) forward mode b-frame encoding
241 int16_t (*b_back_mv_table)[2]; ///< MV table (1MV per MB) backward mode b-frame encoding
242 int16_t (*b_bidir_forw_mv_table)[2]; ///< MV table (1MV per MB) bidir mode b-frame encoding
243 int16_t (*b_bidir_back_mv_table)[2]; ///< MV table (1MV per MB) bidir mode b-frame encoding
244 int16_t (*b_direct_mv_table)[2]; ///< MV table (1MV per MB) direct mode b-frame encoding
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245 int16_t (*p_field_mv_table[2][2])[2]; ///< MV table (2MV per MB) interlaced p-frame encoding
246 int16_t (*b_field_mv_table[2][2][2])[2];///< MV table (4MV per MB) interlaced b-frame encoding
247 uint8_t (*p_field_select_table[2]);
248 uint8_t (*b_field_select_table[2][2]);
4b6b1082 249#if FF_API_MOTION_EST
115329f1 250 int me_method; ///< ME algorithm
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251#endif
252 int motion_est; ///< ME algorithm
5b6f42da 253 int me_penalty_compensation;
0e9c4fe2 254 int me_pre; ///< prepass for motion estimation
de6d9b64 255 int mv_dir;
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256#define MV_DIR_FORWARD 1
257#define MV_DIR_BACKWARD 2
277f4827 258#define MV_DIRECT 4 ///< bidirectional mode where the difference equals the MV of the last P/S/I-Frame (mpeg4)
de6d9b64 259 int mv_type;
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260#define MV_TYPE_16X16 0 ///< 1 vector for the whole mb
261#define MV_TYPE_8X8 1 ///< 4 vectors (h263, mpeg4 4MV)
262#define MV_TYPE_16X8 2 ///< 2 vectors, one per 16x8 block
263#define MV_TYPE_FIELD 3 ///< 2 vectors, one per field
264#define MV_TYPE_DMV 4 ///< 2 vectors, special mpeg2 Dual Prime Vectors
265 /**motion vectors for a macroblock
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266 first coordinate : 0 = forward 1 = backward
267 second " : depend on type
268 third " : 0 = x, 1 = y
269 */
270 int mv[2][4][2];
271 int field_select[2][2];
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272 int last_mv[2][2][2]; ///< last MV, used for MV prediction in MPEG1 & B-frame MPEG4
273 uint8_t *fcode_tab; ///< smallest fcode needed for each MV
841f65f2 274 int16_t direct_scale_mv[2][64]; ///< precomputed to avoid divisions in ff_mpeg4_set_direct_mv
115329f1 275
1457ab52 276 MotionEstContext me;
de6d9b64 277
115329f1 278 int no_rounding; /**< apply no rounding to motion compensation (MPEG4, msmpeg4, ...)
e42dba48 279 for b-frames rounding mode is always 0 */
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280
281 /* macroblock layer */
282 int mb_x, mb_y;
9b8709d1 283 int mb_skip_run;
de6d9b64 284 int mb_intra;
e0c16e4e 285 uint16_t *mb_type; ///< Table for candidate MB types for encoding (defines in mpegutils.h)
2f16af06 286
277f4827 287 int block_index[6]; ///< index to current MB in block based arrays with edges
4278e7a6 288 int block_wrap[6];
7d1c3fc1 289 uint8_t *dest[3];
115329f1 290
7bc9090a 291 int *mb_index2xy; ///< mb_index -> mb_x + mb_y*mb_stride
4278e7a6 292
277f4827 293 /** matrix transmitted in the bitstream */
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294 uint16_t intra_matrix[64];
295 uint16_t chroma_intra_matrix[64];
296 uint16_t inter_matrix[64];
297 uint16_t chroma_inter_matrix[64];
2b6ab3a2 298
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299 int intra_quant_bias; ///< bias for the quantizer
300 int inter_quant_bias; ///< bias for the quantizer
301 int min_qcoeff; ///< minimum encodable coefficient
302 int max_qcoeff; ///< maximum encodable coefficient
303 int ac_esc_length; ///< num of bits needed to encode the longest esc
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304 uint8_t *intra_ac_vlc_length;
305 uint8_t *intra_ac_vlc_last_length;
306 uint8_t *inter_ac_vlc_length;
307 uint8_t *inter_ac_vlc_last_length;
67725183 308 uint8_t *luma_dc_vlc_length;
c442d75c 309#define UNI_AC_ENC_INDEX(run,level) ((run)*128 + (level))
477ab036 310
2d974017 311 int coded_score[8];
f2f6134b 312
277f4827 313 /** precomputed matrix (combine qscale and DCT renorm) */
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314 int (*q_intra_matrix)[64];
315 int (*q_inter_matrix)[64];
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316 /** identical to the above but for MMX & these are not permutated, second 64 entries are bias*/
317 uint16_t (*q_intra_matrix16)[2][64];
318 uint16_t (*q_inter_matrix16)[2][64];
115329f1 319
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320 /* noise reduction */
321 int (*dct_error_sum)[64];
322 int dct_count[2];
323 uint16_t (*dct_offset)[64];
de6d9b64 324
de6d9b64 325 /* bit rate control */
0c1a9eda 326 int64_t total_bits;
115329f1 327 int frame_bits; ///< bits used for the current frame
07506002 328 int next_lambda; ///< next lambda used for retrying to encode a frame
277f4827 329 RateControlContext rc_context; ///< contains stuff only accessed in ratecontrol.c
9cdd6a24 330
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331 /* statistics, used for 2-pass encoding */
332 int mv_bits;
333 int header_bits;
334 int i_tex_bits;
335 int p_tex_bits;
336 int i_count;
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337 int f_count;
338 int b_count;
098eefe1 339 int skip_count;
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340 int misc_bits; ///< cbp, mb_type
341 int last_bits; ///< temp var used for calculating the above vars
115329f1 342
7f2fe444 343 /* error concealment / resync */
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344 int resync_mb_x; ///< x position of last resync marker
345 int resync_mb_y; ///< y position of last resync marker
346 GetBitContext last_resync_gb; ///< used to search for the next resync marker
277f4827 347 int mb_num_left; ///< number of MBs left in this video packet (for partitioned Slices only)
115329f1 348 int next_p_frame_damaged; ///< set if the next p frame is damaged, to avoid showing trashed b frames
115329f1 349
d7425f59 350 ParseContext parse_context;
098eefe1 351
102d3908 352 /* H.263 specific */
644d98a4 353 int gob_index;
dba019da 354 int obmc; ///< overlapped block motion compensation
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355 int mb_info; ///< interval for outputting info about mb offsets as side data
356 int prev_mb_info, last_mb_info;
357 uint8_t *mb_info_ptr;
358 int mb_info_size;
1761ab83 359 int rc_strategy;
115329f1 360
544286b3 361 /* H.263+ specific */
115329f1 362 int umvplus; ///< == H263+ && unrestricted_mv
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363 int h263_aic_dir; ///< AIC direction: 0 = left, 1 = top
364 int h263_slice_structured;
dba019da 365 int alt_inter_vlc; ///< alternative inter vlc
68b94c35 366 int modified_quant;
115329f1 367 int loop_filter;
b056e73c 368 int custom_pcf;
115329f1 369
de6d9b64 370 /* mpeg4 specific */
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371 ///< number of bits to represent the fractional part of time (encoder only)
372 int time_increment_bits;
9dbcbd92 373 int last_time_base;
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374 int time_base; ///< time in seconds of last I,P,S Frame
375 int64_t time; ///< time of current frame
0c1a9eda 376 int64_t last_non_b_time;
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377 uint16_t pp_time; ///< time distance between the last 2 p,s,i frames
378 uint16_t pb_time; ///< time distance between the last b and p,s,i frame
0c1a9eda 379 uint16_t pp_field_time;
115329f1 380 uint16_t pb_field_time; ///< like above, just for interlaced
44eb4951 381 int real_sprite_warping_points;
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382 int sprite_offset[2][2]; ///< sprite offset[isChroma][isMVY]
383 int sprite_delta[2][2]; ///< sprite_delta [isY][isMVY]
73c8e514 384 int mcsel;
1a565432 385 int quant_precision;
115329f1 386 int quarter_sample; ///< 1->qpel, 0->half pel ME/MC
0da71265 387 int aspect_ratio_info; //FIXME remove
cc9ba006 388 int sprite_warping_accuracy;
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389 int data_partitioning; ///< data partitioning flag from header
390 int partitioned_frame; ///< is current frame partitioned
115329f1 391 int low_delay; ///< no reordering needed / has no b-frames
1ff662cc 392 int vo_type;
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393 PutBitContext tex_pb; ///< used for data partitioned VOPs
394 PutBitContext pb2; ///< used for data partitioned VOPs
d930ef19 395 int mpeg_quant;
115329f1 396 int padding_bug_score; ///< used to detect the VERY common padding bug in MPEG4
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397
398 /* divx specific, used to workaround (many) bugs in divx5 */
d5a21172 399 int divx_packed;
0c1a9eda 400 uint8_t *bitstream_buffer; //Divx 5.01 puts several frames in a single one, this is used to reorder them
eec1c6b9 401 int bitstream_buffer_size;
f038fe8b 402 unsigned int allocated_bitstream_buffer_size;
115329f1 403
de6d9b64 404 /* RV10 specific */
115329f1 405 int rv10_version; ///< RV10 version: 0 or 3
de6d9b64 406 int rv10_first_dc_coded[3];
115329f1 407
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408 /* MJPEG specific */
409 struct MJpegContext *mjpeg_ctx;
2862b637 410 int pred;
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411
412 /* MSMPEG4 specific */
413 int mv_table_index;
414 int rl_table_index;
415 int rl_chroma_table_index;
416 int dc_table_index;
417 int use_skip_mb_code;
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418 int slice_height; ///< in macroblocks
419 int first_slice_line; ///< used in mpeg4 too to handle resync markers
ae40484c 420 int flipflop_rounding;
277f4827 421 int msmpeg4_version; ///< 0=not msmpeg4, 1=mp41, 2=mp42, 3=mp43/divx3 4=wmv1/7 5=wmv2/8
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422 int per_mb_rl_table;
423 int esc3_level_length;
424 int esc3_run_length;
277f4827 425 /** [mb_intra][isChroma][level][run][last] */
6b460aa3 426 int (*ac_stats)[2][MAX_LEVEL+1][MAX_RUN+1][2];
de0f2f4c 427 int inter_intra_pred;
1457ab52 428 int mspel;
0151a6f5 429
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430 /* decompression specific */
431 GetBitContext gb;
432
1e491e29 433 /* Mpeg1 specific */
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434 int gop_picture_number; ///< index of the first picture of a GOP based on fake_pic_num & mpeg1 specific
435 int last_mv_dir; ///< last mv_dir, used for b frame encoding
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436 uint8_t *vbv_delay_ptr; ///< pointer to vbv_delay in the bitstream
437
7eb2d654 438 /* MPEG-2-specific - I wished not to have to support this mess. */
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439 int progressive_sequence;
440 int mpeg_f_code[2][2];
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441
442 // picture structure defines are loaded from mpegutils.h
de6d9b64 443 int picture_structure;
de6d9b64 444
d7496153 445 int64_t timecode_frame_start; ///< GOP timecode frame start number, in non drop frame format
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446 int intra_dc_precision;
447 int frame_pred_frame_dct;
448 int top_field_first;
449 int concealment_motion_vectors;
450 int q_scale_type;
84c4714f 451 int brd_scale;
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452 int intra_vlc_format;
453 int alternate_scan;
454 int repeat_first_field;
455 int chroma_420_type;
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456 int chroma_format;
457#define CHROMA_420 1
458#define CHROMA_422 2
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459 int chroma_x_shift;//depend on pix_format, that depend on chroma_format
460 int chroma_y_shift;
5e5c247a 461
de6d9b64 462 int progressive_frame;
cd8c64e1 463 int full_pel[2];
de6d9b64 464 int interlaced_dct;
c3bf0288 465 int first_field; ///< is 1 for the first field of a field picture 0 otherwise
2c5e1efc 466 int drop_frame_timecode; ///< timecode is in drop frame format.
aed79007 467 int scan_offset; ///< reserve space for SVCD scan offset user data.
ba58dabc 468
644d98a4 469 /* RTP specific */
e4eadb4b 470 int rtp_mode;
936f0d98 471 int rtp_payload_size;
115329f1 472
0c1a9eda 473 uint8_t *ptr_lastgob;
88bd7fdc 474 int16_t (*pblocks[12])[64];
115329f1 475
88bd7fdc 476 int16_t (*block)[64]; ///< points to one of the following blocks
f349f4b5 477 int16_t (*blocks)[12][64]; // for HQ mode we need to keep the best block
88bd7fdc 478 int (*decode_mb)(struct MpegEncContext *s, int16_t block[6][64]); // used by some codecs to avoid a switch()
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479#define SLICE_OK 0
480#define SLICE_ERROR -1
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481#define SLICE_END -2 ///<end marker found
482#define SLICE_NOEND -3 ///<no end marker or error found but mb count exceeded
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483
484 void (*dct_unquantize_mpeg1_intra)(struct MpegEncContext *s,
88bd7fdc 485 int16_t *block/*align 16*/, int n, int qscale);
115329f1 486 void (*dct_unquantize_mpeg1_inter)(struct MpegEncContext *s,
88bd7fdc 487 int16_t *block/*align 16*/, int n, int qscale);
115329f1 488 void (*dct_unquantize_mpeg2_intra)(struct MpegEncContext *s,
88bd7fdc 489 int16_t *block/*align 16*/, int n, int qscale);
115329f1 490 void (*dct_unquantize_mpeg2_inter)(struct MpegEncContext *s,
88bd7fdc 491 int16_t *block/*align 16*/, int n, int qscale);
115329f1 492 void (*dct_unquantize_h263_intra)(struct MpegEncContext *s,
88bd7fdc 493 int16_t *block/*align 16*/, int n, int qscale);
115329f1 494 void (*dct_unquantize_h263_inter)(struct MpegEncContext *s,
88bd7fdc 495 int16_t *block/*align 16*/, int n, int qscale);
d50635cd 496 void (*dct_unquantize_intra)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both)
88bd7fdc 497 int16_t *block/*align 16*/, int n, int qscale);
d50635cd 498 void (*dct_unquantize_inter)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both)
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499 int16_t *block/*align 16*/, int n, int qscale);
500 int (*dct_quantize)(struct MpegEncContext *s, int16_t *block/*align 16*/, int n, int qscale, int *overflow);
501 int (*fast_dct_quantize)(struct MpegEncContext *s, int16_t *block/*align 16*/, int n, int qscale, int *overflow);
502 void (*denoise_dct)(struct MpegEncContext *s, int16_t *block);
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503
504 int mpv_flags; ///< flags set by private options
23bfcc06 505 int quantizer_noise_shaping;
89b81a1c 506
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507 /**
508 * ratecontrol qmin qmax limiting method
509 * 0-> clipping, 1-> use a nice continuous function to limit qscale wthin qmin/qmax.
510 */
511 float rc_qsquish;
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512 float rc_qmod_amp;
513 int rc_qmod_freq;
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514 float rc_initial_cplx;
515 float rc_buffer_aggressivity;
15ec053c 516 float border_masking;
530c1441 517 int lmin, lmax;
a6e4ce9f 518
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519 char *rc_eq;
520
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521 /* temp buffers for rate control */
522 float *cplx_tab, *bits_tab;
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523
524 /* flag to indicate a reinitialization is required, e.g. after
525 * a frame size change */
526 int context_reinit;
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527
528 ERContext er;
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529
530 int error_rate;
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531
532 /* temporary frames used by b_frame_strategy = 2 */
533 AVFrame *tmp_frames[MAX_B_FRAMES + 2];
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534 int b_frame_strategy;
535 int b_sensitivity;
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536
537 /* frame skip options for encoding */
538 int frame_skip_threshold;
539 int frame_skip_factor;
540 int frame_skip_exp;
541 int frame_skip_cmp;
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542
543 int scenechange_threshold;
1482aff2 544 int noise_reduction;
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545} MpegEncContext;
546
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547/* mpegvideo_enc common options */
548#define FF_MPV_FLAG_SKIP_RD 0x0001
a249f0cc 549#define FF_MPV_FLAG_STRICT_GOP 0x0002
ff71a383 550#define FF_MPV_FLAG_QP_RD 0x0004
af3d804f 551#define FF_MPV_FLAG_CBP_RD 0x0008
b2c31710 552#define FF_MPV_FLAG_NAQ 0x0010
a2941c8c 553#define FF_MPV_FLAG_MV0 0x0020
ed019b8e 554
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555#define FF_MPV_OPT_CMP_FUNC \
556{ "sad", "Sum of absolute differences, fast", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_SAD }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
557{ "sse", "Sum of squared errors", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_SSE }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
558{ "satd", "Sum of absolute Hadamard transformed differences", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_SATD }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
559{ "dct", "Sum of absolute DCT transformed differences", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_DCT }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
560{ "psnr", "Sum of squared quantization errors, low quality", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_PSNR }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
561{ "bit", "Number of bits needed for the block", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_BIT }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
562{ "rd", "Rate distortion optimal, slow", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_RD }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
563{ "zero", "Zero", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_ZERO }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
564{ "vsad", "Sum of absolute vertical differences", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_VSAD }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
565{ "vsse", "Sum of squared vertical differences", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_VSSE }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
566{ "nsse", "Noise preserving sum of squared differences", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_NSSE }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
567{ "dct264", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_DCT264 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
568{ "dctmax", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_DCTMAX }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
569{ "chroma", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_CHROMA }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }
570
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571#define FF_MPV_OFFSET(x) offsetof(MpegEncContext, x)
572#define FF_MPV_OPT_FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)
573#define FF_MPV_COMMON_OPTS \
0ac9f33a 574FF_MPV_OPT_CMP_FUNC, \
d58dd4b5 575{ "mpv_flags", "Flags common for all mpegvideo-based encoders.", FF_MPV_OFFSET(mpv_flags), AV_OPT_TYPE_FLAGS, { .i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "mpv_flags" },\
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576{ "skip_rd", "RD optimal MB level residual skipping", 0, AV_OPT_TYPE_CONST, { .i64 = FF_MPV_FLAG_SKIP_RD }, 0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\
577{ "strict_gop", "Strictly enforce gop size", 0, AV_OPT_TYPE_CONST, { .i64 = FF_MPV_FLAG_STRICT_GOP }, 0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\
578{ "qp_rd", "Use rate distortion optimization for qp selection", 0, AV_OPT_TYPE_CONST, { .i64 = FF_MPV_FLAG_QP_RD }, 0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\
579{ "cbp_rd", "use rate distortion optimization for CBP", 0, AV_OPT_TYPE_CONST, { .i64 = FF_MPV_FLAG_CBP_RD }, 0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\
b2c31710 580{ "naq", "normalize adaptive quantization", 0, AV_OPT_TYPE_CONST, { .i64 = FF_MPV_FLAG_NAQ }, 0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\
a2941c8c 581{ "mv0", "always try a mb with mv=<0,0>", 0, AV_OPT_TYPE_CONST, { .i64 = FF_MPV_FLAG_MV0 }, 0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\
63efd83a 582{ "luma_elim_threshold", "single coefficient elimination threshold for luminance (negative values also consider dc coefficient)",\
e6153f17 583 FF_MPV_OFFSET(luma_elim_threshold), AV_OPT_TYPE_INT, { .i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS },\
63efd83a 584{ "chroma_elim_threshold", "single coefficient elimination threshold for chrominance (negative values also consider dc coefficient)",\
e6153f17 585 FF_MPV_OFFSET(chroma_elim_threshold), AV_OPT_TYPE_INT, { .i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS },\
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586{ "quantizer_noise_shaping", NULL, FF_MPV_OFFSET(quantizer_noise_shaping), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, FF_MPV_OPT_FLAGS },\
587{ "error_rate", "Simulate errors in the bitstream to test error concealment.", \
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588 FF_MPV_OFFSET(error_rate), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, FF_MPV_OPT_FLAGS },\
589{"qsquish", "how to keep quantizer between qmin and qmax (0 = clip, 1 = use differentiable function)", \
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590 FF_MPV_OFFSET(rc_qsquish), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, 0, 99, FF_MPV_OPT_FLAGS}, \
591{"rc_qmod_amp", "experimental quantizer modulation", FF_MPV_OFFSET(rc_qmod_amp), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, FF_MPV_OPT_FLAGS}, \
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592{"rc_qmod_freq", "experimental quantizer modulation", FF_MPV_OFFSET(rc_qmod_freq), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS}, \
593{"rc_eq", "Set rate control equation. When computing the expression, besides the standard functions " \
594 "defined in the section 'Expression Evaluation', the following functions are available: " \
595 "bits2qp(bits), qp2bits(qp). Also the following constants are available: iTex pTex tex mv " \
596 "fCode iCount mcVar var isI isP isB avgQP qComp avgIITex avgPITex avgPPTex avgBPTex avgTex.", \
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597 FF_MPV_OFFSET(rc_eq), AV_OPT_TYPE_STRING, .flags = FF_MPV_OPT_FLAGS }, \
598{"rc_init_cplx", "initial complexity for 1-pass encoding", FF_MPV_OFFSET(rc_initial_cplx), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, FF_MPV_OPT_FLAGS}, \
599{"rc_buf_aggressivity", "currently useless", FF_MPV_OFFSET(rc_buffer_aggressivity), AV_OPT_TYPE_FLOAT, {.dbl = 1.0 }, -FLT_MAX, FLT_MAX, FF_MPV_OPT_FLAGS}, \
15ec053c 600{"border_mask", "increase the quantizer for macroblocks close to borders", FF_MPV_OFFSET(border_masking), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, FF_MPV_OPT_FLAGS}, \
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601{"lmin", "minimum Lagrange factor (VBR)", FF_MPV_OFFSET(lmin), AV_OPT_TYPE_INT, {.i64 = 2*FF_QP2LAMBDA }, 0, INT_MAX, FF_MPV_OPT_FLAGS }, \
602{"lmax", "maximum Lagrange factor (VBR)", FF_MPV_OFFSET(lmax), AV_OPT_TYPE_INT, {.i64 = 31*FF_QP2LAMBDA }, 0, INT_MAX, FF_MPV_OPT_FLAGS }, \
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603{"ibias", "intra quant bias", FF_MPV_OFFSET(intra_quant_bias), AV_OPT_TYPE_INT, {.i64 = FF_DEFAULT_QUANT_BIAS }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
604{"pbias", "inter quant bias", FF_MPV_OFFSET(inter_quant_bias), AV_OPT_TYPE_INT, {.i64 = FF_DEFAULT_QUANT_BIAS }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
1761ab83 605{"rc_strategy", "ratecontrol method", FF_MPV_OFFSET(rc_strategy), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, 1, FF_MPV_OPT_FLAGS }, \
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606{"motion_est", "motion estimation algorithm", FF_MPV_OFFSET(motion_est), AV_OPT_TYPE_INT, {.i64 = FF_ME_EPZS }, FF_ME_ZERO, FF_ME_XONE, FF_MPV_OPT_FLAGS, "motion_est" }, \
607{ "zero", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = FF_ME_ZERO }, 0, 0, FF_MPV_OPT_FLAGS, "motion_est" }, \
608{ "epzs", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = FF_ME_EPZS }, 0, 0, FF_MPV_OPT_FLAGS, "motion_est" }, \
609{ "xone", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = FF_ME_XONE }, 0, 0, FF_MPV_OPT_FLAGS, "motion_est" }, \
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610{"b_strategy", "Strategy to choose between I/P/B-frames", FF_MPV_OFFSET(b_frame_strategy), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, 2, FF_MPV_OPT_FLAGS }, \
611{"b_sensitivity", "Adjust sensitivity of b_frame_strategy 1", FF_MPV_OFFSET(b_sensitivity), AV_OPT_TYPE_INT, {.i64 = 40 }, 1, INT_MAX, FF_MPV_OPT_FLAGS }, \
84c4714f 612{"brd_scale", "Downscale frames for dynamic B-frame decision", FF_MPV_OFFSET(brd_scale), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, 3, FF_MPV_OPT_FLAGS }, \
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613{"skip_threshold", "Frame skip threshold", FF_MPV_OFFSET(frame_skip_threshold), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
614{"skip_factor", "Frame skip factor", FF_MPV_OFFSET(frame_skip_factor), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
615{"skip_exp", "Frame skip exponent", FF_MPV_OFFSET(frame_skip_exp), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
616{"skip_cmp", "Frame skip compare function", FF_MPV_OFFSET(frame_skip_cmp), AV_OPT_TYPE_INT, {.i64 = FF_CMP_DCTMAX }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
7c79587d 617{"sc_threshold", "Scene change threshold", FF_MPV_OFFSET(scenechange_threshold), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
1482aff2 618{"noise_reduction", "Noise reduction", FF_MPV_OFFSET(noise_reduction), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
12b49769 619{"mpeg_quant", "Use MPEG quantizers instead of H.263", FF_MPV_OFFSET(mpeg_quant), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, 1, FF_MPV_OPT_FLAGS }, \
936f0d98 620{"ps", "RTP payload size in bytes", FF_MPV_OFFSET(rtp_payload_size), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
5b6f42da 621{"mepc", "Motion estimation bitrate penalty compensation (1.0 = 256)", FF_MPV_OFFSET(me_penalty_compensation), AV_OPT_TYPE_INT, {.i64 = 256 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
0e9c4fe2 622{"mepre", "pre motion estimation", FF_MPV_OFFSET(me_pre), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
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623
624extern const AVOption ff_mpv_generic_options[];
625
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626/**
627 * Set the given MpegEncContext to common defaults (same for encoding
628 * and decoding). The changed fields will not depend upon the prior
629 * state of the MpegEncContext.
630 */
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631void ff_mpv_common_defaults(MpegEncContext *s);
632
633int ff_mpv_common_init(MpegEncContext *s);
634void ff_mpv_common_init_arm(MpegEncContext *s);
635void ff_mpv_common_init_neon(MpegEncContext *s);
636void ff_mpv_common_init_ppc(MpegEncContext *s);
637void ff_mpv_common_init_x86(MpegEncContext *s);
638
639int ff_mpv_common_frame_size_change(MpegEncContext *s);
640void ff_mpv_common_end(MpegEncContext *s);
641
642void ff_mpv_decode_defaults(MpegEncContext *s);
643void ff_mpv_decode_mb(MpegEncContext *s, int16_t block[12][64]);
644void ff_mpv_report_decode_progress(MpegEncContext *s);
645
646int ff_mpv_frame_start(MpegEncContext *s, AVCodecContext *avctx);
647void ff_mpv_frame_end(MpegEncContext *s);
648
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649int ff_mpv_encode_init(AVCodecContext *avctx);
650void ff_mpv_encode_init_x86(MpegEncContext *s);
651
652int ff_mpv_encode_end(AVCodecContext *avctx);
653int ff_mpv_encode_picture(AVCodecContext *avctx, AVPacket *pkt,
445a7d48 654 const AVFrame *frame, int *got_packet);
835f798c 655
7f2fe444 656void ff_clean_intra_table_entries(MpegEncContext *s);
1d0feb5d 657void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h);
7a06ff14 658void ff_mpeg_flush(AVCodecContext *avctx);
759001c5 659void ff_print_debug_info(MpegEncContext *s, Picture *p);
191e8ca7 660void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix);
4e17946f 661
f1d8763a 662int ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src);
6a9c8594 663int ff_mpeg_update_thread_context(AVCodecContext *dst, const AVCodecContext *src);
bb174ff1 664void ff_set_qscale(MpegEncContext * s, int qscale);
59b571c1 665
998c9f15 666void ff_mpv_idct_init(MpegEncContext *s);
5dd8c08f 667void ff_convert_matrix(MpegEncContext *s, int (*qmat)[64], uint16_t (*qmat16)[2][64],
69cea75f 668 const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra);
88bd7fdc 669int ff_dct_quantize_c(MpegEncContext *s, int16_t *block, int n, int qscale, int *overflow);
46b4feec 670
7d1c3fc1 671void ff_init_block_index(MpegEncContext *s);
4d2858de 672
835f798c 673void ff_mpv_motion(MpegEncContext *s,
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674 uint8_t *dest_y, uint8_t *dest_cb,
675 uint8_t *dest_cr, int dir,
676 uint8_t **ref_picture,
677 op_pixels_func (*pix_op)[4],
678 qpel_mc_func (*qpix_op)[16]);
679
4d2858de 680static inline void ff_update_block_index(MpegEncContext *s){
2bcbd984 681 const int block_size = 8;
178fcca8 682
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683 s->block_index[0]+=2;
684 s->block_index[1]+=2;
685 s->block_index[2]+=2;
686 s->block_index[3]+=2;
687 s->block_index[4]++;
688 s->block_index[5]++;
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689 s->dest[0]+= 2*block_size;
690 s->dest[1]+= block_size;
691 s->dest[2]+= block_size;
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692}
693
4d2a4834 694static inline int get_bits_diff(MpegEncContext *s){
fe455f33 695 const int bits= put_bits_count(&s->pb);
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696 const int last= s->last_bits;
697
698 s->last_bits = bits;
699
700 return bits - last;
701}
4d2858de 702
98790382 703#endif /* AVCODEC_MPEGVIDEO_H */