lavc: Rename avpriv_mpv_find_start_code after moving out from mpegvideo
[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
657ccb5a 31#include "avcodec.h"
5c91a675 32#include "dsputil.h"
54974c62 33#include "error_resilience.h"
9106a698 34#include "get_bits.h"
b2755007 35#include "put_bits.h"
0de9926f 36#include "ratecontrol.h"
4067d81b 37#include "parser.h"
3bfe9260 38#include "mpeg12data.h"
6d934615 39#include "rl.h"
759001c5 40#include "thread.h"
8c53d39e 41#include "videodsp.h"
5c91a675 42
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43#include "libavutil/opt.h"
44
160d679c 45#define FRAME_SKIPPED 100 ///< return value for header parsers if frame is not coded
eec1c6b9 46
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47enum OutputFormat {
48 FMT_MPEG1,
c6148de2 49 FMT_H261,
de6d9b64 50 FMT_H263,
115329f1 51 FMT_MJPEG,
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52};
53
54#define MPEG_BUF_SIZE (16 * 1024)
55
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56#define QMAT_SHIFT_MMX 16
57#define QMAT_SHIFT 22
2f349de2 58
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59#define MAX_FCODE 7
60#define MAX_MV 2048
1e491e29 61
e8b78541 62#define MAX_THREADS 16
9c3d33d6 63
5cbb0e70 64#define MAX_PICTURE_COUNT 32
45870f57 65
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66#define ME_MAP_SIZE 64
67#define ME_MAP_SHIFT 3
68#define ME_MAP_MV_BITS 11
69
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70#define MAX_MB_BYTES (30*16*16*3/8 + 120)
71
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72#define INPLACE_OFFSET 16
73
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74/* Start codes. */
75#define SEQ_END_CODE 0x000001b7
76#define SEQ_START_CODE 0x000001b3
77#define GOP_START_CODE 0x000001b8
78#define PICTURE_START_CODE 0x00000100
79#define SLICE_MIN_START_CODE 0x00000101
80#define SLICE_MAX_START_CODE 0x000001af
81#define EXT_START_CODE 0x000001b5
82#define USER_START_CODE 0x000001b2
83
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84/**
85 * Value of Picture.reference when Picture is not a reference picture, but
86 * is held for delayed output.
87 */
88#define DELAYED_PIC_REF 4
89
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90struct MpegEncContext;
91
277f4827 92/**
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93 * Picture.
94 */
1e491e29 95typedef struct Picture{
657ccb5a 96 struct AVFrame f;
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97 ThreadFrame tf;
98
99 AVBufferRef *qscale_table_buf;
100 int8_t *qscale_table;
101
102 AVBufferRef *motion_val_buf[2];
103 int16_t (*motion_val[2])[2];
104
105 AVBufferRef *mb_type_buf;
106 uint32_t *mb_type;
107
108 AVBufferRef *mbskip_table_buf;
109 uint8_t *mbskip_table;
110
111 AVBufferRef *ref_index_buf[2];
112 int8_t *ref_index[2];
113
114 AVBufferRef *mb_var_buf;
115 uint16_t *mb_var; ///< Table for MB variances
116
117 AVBufferRef *mc_mb_var_buf;
118 uint16_t *mc_mb_var; ///< Table for motion compensated MB variances
119
120 AVBufferRef *mb_mean_buf;
121 uint8_t *mb_mean; ///< Table for MB luminance
122
123 AVBufferRef *hwaccel_priv_buf;
124 /**
125 * hardware accelerator private data
126 */
127 void *hwaccel_picture_private;
1e491e29 128
d0b53d05 129#define MB_TYPE_INTRA MB_TYPE_INTRA4x4 //default mb_type if there is just one type
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130#define IS_INTRA4x4(a) ((a)&MB_TYPE_INTRA4x4)
131#define IS_INTRA16x16(a) ((a)&MB_TYPE_INTRA16x16)
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132#define IS_PCM(a) ((a)&MB_TYPE_INTRA_PCM)
133#define IS_INTRA(a) ((a)&7)
0da71265 134#define IS_INTER(a) ((a)&(MB_TYPE_16x16|MB_TYPE_16x8|MB_TYPE_8x16|MB_TYPE_8x8))
7bc9090a 135#define IS_SKIP(a) ((a)&MB_TYPE_SKIP)
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136#define IS_INTRA_PCM(a) ((a)&MB_TYPE_INTRA_PCM)
137#define IS_INTERLACED(a) ((a)&MB_TYPE_INTERLACED)
138#define IS_DIRECT(a) ((a)&MB_TYPE_DIRECT2)
7bc9090a 139#define IS_GMC(a) ((a)&MB_TYPE_GMC)
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140#define IS_16X16(a) ((a)&MB_TYPE_16x16)
141#define IS_16X8(a) ((a)&MB_TYPE_16x8)
142#define IS_8X16(a) ((a)&MB_TYPE_8x16)
143#define IS_8X8(a) ((a)&MB_TYPE_8x8)
144#define IS_SUB_8X8(a) ((a)&MB_TYPE_16x16) //note reused
145#define IS_SUB_8X4(a) ((a)&MB_TYPE_16x8) //note reused
146#define IS_SUB_4X8(a) ((a)&MB_TYPE_8x16) //note reused
147#define IS_SUB_4X4(a) ((a)&MB_TYPE_8x8) //note reused
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148#define IS_ACPRED(a) ((a)&MB_TYPE_ACPRED)
149#define IS_QUANT(a) ((a)&MB_TYPE_QUANT)
0da71265 150#define IS_DIR(a, part, list) ((a) & (MB_TYPE_P0L0<<((part)+2*(list))))
755bfeab 151#define USES_LIST(a, list) ((a) & ((MB_TYPE_P0L0|MB_TYPE_P1L0)<<(2*(list)))) ///< does this mb use listX, note does not work if subMBs
b40cd4e0 152#define HAS_CBP(a) ((a)&MB_TYPE_CBP)
0da71265 153
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154 int field_poc[2]; ///< h264 top/bottom POC
155 int poc; ///< h264 frame POC
bcc3476c 156 int frame_num; ///< h264 frame_num (raw frame_num from slice header)
c173a088 157 int mmco_reset; ///< h264 MMCO_RESET set this 1. Reordering code must not mix pictures before and after MMCO_RESET.
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158 int pic_id; /**< h264 pic_num (short -> no wrap version of pic_num,
159 pic_num & max_pic_num; long -> long_pic_num) */
0da71265 160 int long_ref; ///< 1->long term reference 0->short term reference
48cbe4b0 161 int ref_poc[2][2][32]; ///< h264 POCs of the frames used as reference (FIXME need per slice)
2879c75f 162 int ref_count[2][2]; ///< number of entries in ref_poc (FIXME need per slice)
48e025e5 163 int mbaff; ///< h264 1 -> MBAFF frame 0-> not MBAFF
da9cea77 164 int field_picture; ///< whether or not the picture was encoded in separate fields
0da71265 165
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166 int mb_var_sum; ///< sum of MB variance for current frame
167 int mc_mb_var_sum; ///< motion compensated MB variance for current frame
759001c5 168
0d1e9246 169 int b_frame_score; /* */
435c0b87 170 int needs_realloc; ///< Picture needs to be reallocated (eg due to a frame size change)
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171
172 int reference;
173 int shared;
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174} Picture;
175
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176/**
177 * Motion estimation context.
178 */
1457ab52 179typedef struct MotionEstContext{
1f202b0d 180 AVCodecContext *avctx;
115329f1 181 int skip; ///< set if ME is skipped for the current MB
755bfeab 182 int co_located_mv[4][2]; ///< mv from last P-frame for direct mode ME
1457ab52 183 int direct_basis_mv[4][2];
755bfeab 184 uint8_t *scratchpad; ///< data area for the ME algo, so that the ME does not need to malloc/free
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185 uint8_t *best_mb;
186 uint8_t *temp_mb[2];
187 uint8_t *temp;
188 int best_bits;
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189 uint32_t *map; ///< map to avoid duplicate evaluations
190 uint32_t *score_map; ///< map to store the scores
cb668476 191 unsigned map_generation;
826f429a 192 int pre_penalty_factor;
adbfc605 193 int penalty_factor; /**< an estimate of the bits required to
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194 code a given mv value, e.g. (1,0) takes
195 more bits than (0,0). We have to
196 estimate whether any reduction in
197 residual is worth the extra bits. */
1457ab52 198 int sub_penalty_factor;
67725183 199 int mb_penalty_factor;
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200 int flags;
201 int sub_flags;
202 int mb_flags;
115329f1 203 int pre_pass; ///< = 1 for the pre pass
826f429a 204 int dia_size;
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205 int xmin;
206 int xmax;
207 int ymin;
208 int ymax;
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209 int pred_x;
210 int pred_y;
211 uint8_t *src[4][4];
212 uint8_t *ref[4][4];
213 int stride;
214 int uvstride;
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215 /* temp variables for picture complexity calculation */
216 int mc_mb_var_sum_temp;
217 int mb_var_sum_temp;
218 int scene_change_score;
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219/* cmp, chroma_cmp;*/
220 op_pixels_func (*hpel_put)[4];
221 op_pixels_func (*hpel_avg)[4];
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222 qpel_mc_func (*qpel_put)[16];
223 qpel_mc_func (*qpel_avg)[16];
115329f1 224 uint8_t (*mv_penalty)[MAX_MV*2+1]; ///< amount of bits needed to encode a MV
2750b827 225 uint8_t *current_mv_penalty;
1457ab52 226 int (*sub_motion_search)(struct MpegEncContext * s,
bb270c08 227 int *mx_ptr, int *my_ptr, int dmin,
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228 int src_index, int ref_index,
229 int size, int h);
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230}MotionEstContext;
231
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232/**
233 * MpegEncContext.
234 */
de6d9b64 235typedef struct MpegEncContext {
297d9cb3 236 AVClass *class;
58f26ba9 237 struct AVCodecContext *avctx;
de6d9b64 238 /* the following parameters must be initialized before encoding */
115329f1 239 int width, height;///< picture size. must be a multiple of 16
de6d9b64 240 int gop_size;
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241 int intra_only; ///< if true, only intra pictures are generated
242 int bit_rate; ///< wanted bit rate
243 enum OutputFormat out_format; ///< output format
244 int h263_pred; ///< use mpeg4/h263 ac/dc predictions
91ba181a 245 int pb_frame; ///< PB frame mode (0 = none, 1 = base, 2 = improved)
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246
247/* the following codec id fields are deprecated in favor of codec_id */
115329f1 248 int h263_plus; ///< h263 plus headers
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249 int h263_flv; ///< use flv h263 header
250
36ef5369 251 enum AVCodecID codec_id; /* see AV_CODEC_ID_xxx */
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252 int fixed_qscale; ///< fixed qscale if non zero
253 int encoding; ///< true if we are encoding (vs decoding)
254 int flags; ///< AVCodecContext.flags (HQ, MV4, ...)
303e50e6 255 int flags2; ///< AVCodecContext.flags2
115329f1 256 int max_b_frames; ///< max number of b-frames for encoding
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257 int luma_elim_threshold;
258 int chroma_elim_threshold;
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259 int strict_std_compliance; ///< strictly follow the std (MPEG4, ...)
260 int workaround_bugs; ///< workaround bugs in encoders which cannot be detected automatically
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261 int codec_tag; ///< internal codec_tag upper case converted from avctx codec_tag
262 int stream_codec_tag; ///< internal stream_codec_tag upper case converted from avctx stream_codec_tag
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263 /* the following fields are managed internally by the encoder */
264
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265 /* sequence parameters */
266 int context_initialized;
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267 int input_picture_number; ///< used to set pic->display_picture_number, should not be used for/by anything else
268 int coded_picture_number; ///< used to set pic->coded_picture_number, should not be used for/by anything else
1031fabd 269 int picture_number; //FIXME remove, unclear definition
115329f1 270 int picture_in_gop_number; ///< 0-> first pic in gop, ...
115329f1 271 int mb_width, mb_height; ///< number of MBs horizontally & vertically
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272 int mb_stride; ///< mb_width+1 used for some arrays to allow simple addressing of left & top MBs without sig11
273 int b8_stride; ///< 2*mb_width+1 used for some 8x8 block arrays to allow simple addressing
274 int b4_stride; ///< 4*mb_width+1 used for some 4x4 block arrays to allow simple addressing
275 int h_edge_pos, v_edge_pos;///< horizontal / vertical position of the right/bottom edge (pixel replication)
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276 int mb_num; ///< number of MBs of a picture
277 int linesize; ///< line size, in bytes, may be different from width
278 int uvlinesize; ///< line size, for chroma in bytes, may be different from width
279 Picture *picture; ///< main picture buffer
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280 Picture **input_picture; ///< next pictures on display order for encoding
281 Picture **reordered_input_picture; ///< pointer to the next pictures in codedorder for encoding
115329f1 282
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283 int y_dc_scale, c_dc_scale;
284 int ac_pred;
285 int block_last_index[12]; ///< last non zero coefficient in block
286 int h263_aic; ///< Advanded INTRA Coding (AIC)
287
288 /* scantables */
289 ScanTable inter_scantable; ///< if inter == intra then intra should be used to reduce tha cache usage
290 ScanTable intra_scantable;
291 ScanTable intra_h_scantable;
292 ScanTable intra_v_scantable;
293
294 /* WARNING: changes above this line require updates to hardcoded
295 * offsets used in asm. */
296
d0a2f0af 297 int64_t user_specified_pts;///< last non zero pts from AVFrame which was passed into avcodec_encode_video()
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298 /**
299 * pts difference between the first and second input frame, used for
300 * calculating dts of the first frame when there's a delay */
301 int64_t dts_delta;
302 /**
303 * reordered pts to be used as dts for the next output frame when there's
304 * a delay */
305 int64_t reordered_pts;
d0a2f0af 306
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307 /** bit output */
308 PutBitContext pb;
309
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310 int start_mb_y; ///< start mb_y of this thread (so current thread should process start_mb_y <= row < end_mb_y)
311 int end_mb_y; ///< end mb_y of this thread (so current thread should process start_mb_y <= row < end_mb_y)
312 struct MpegEncContext *thread_context[MAX_THREADS];
881a5e04 313 int slice_context_count; ///< number of used thread_contexts
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314
315 /**
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316 * copy of the previous picture structure.
317 * note, linesize & data, might not match the previous picture (for field pictures)
318 */
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319 Picture last_picture;
320
321 /**
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322 * copy of the next picture structure.
323 * note, linesize & data, might not match the next picture (for field pictures)
324 */
325 Picture next_picture;
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326
327 /**
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328 * copy of the source picture structure for encoding.
329 * note, linesize & data, might not match the source picture (for field pictures)
330 */
331 Picture new_picture;
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332
333 /**
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334 * copy of the current picture structure.
335 * note, linesize & data, might not match the current picture (for field pictures)
336 */
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337 Picture current_picture; ///< buffer to store the decompressed current picture
338
b536d0aa 339 Picture *last_picture_ptr; ///< pointer to the previous picture.
115329f1 340 Picture *next_picture_ptr; ///< pointer to the next picture (for bidir pred)
b536d0aa 341 Picture *current_picture_ptr; ///< pointer to the current picture
115329f1 342 int last_dc[3]; ///< last DC values for MPEG1
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343 int16_t *dc_val_base;
344 int16_t *dc_val[3]; ///< used for mpeg4 DC prediction, all 3 arrays must be continuous
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345 const uint8_t *y_dc_scale_table; ///< qscale -> y_dc_scale table
346 const uint8_t *c_dc_scale_table; ///< qscale -> c_dc_scale table
332f9ac4 347 const uint8_t *chroma_qscale_table; ///< qscale -> chroma_qscale (h263)
137c8468 348 uint8_t *coded_block_base;
277f4827 349 uint8_t *coded_block; ///< used for coded block pattern prediction (msmpeg4v3, wmv1)
137c8468 350 int16_t (*ac_val_base)[16];
115329f1 351 int16_t (*ac_val[3])[16]; ///< used for for mpeg4 AC prediction, all 3 arrays must be continuous
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352 int mb_skipped; ///< MUST BE SET only during DECODING
353 uint8_t *mbskip_table; /**< used to avoid copy if macroblock skipped (for black regions for example)
9dbcbd92 354 and used for b-frame encoding & decoding (contains skip table of next P Frame) */
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355 uint8_t *mbintra_table; ///< used to avoid setting {ac, dc, cbp}-pred stuff to zero on inter MB decoding
356 uint8_t *cbp_table; ///< used to store cbp, ac_pred for partitioned decoding
357 uint8_t *pred_dir_table; ///< used to store pred_dir for partitioned decoding
330deb75 358 uint8_t *edge_emu_buffer; ///< temporary buffer for if MVs point to out-of-frame data
bb628dae 359 uint8_t *rd_scratchpad; ///< scratchpad for rate distortion mb decision
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360 uint8_t *obmc_scratchpad;
361 uint8_t *b_scratchpad; ///< scratchpad used for writing into write only buffers
de6d9b64 362
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363 int qscale; ///< QP
364 int chroma_qscale; ///< chroma QP
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365 unsigned int lambda; ///< lagrange multipler used in rate distortion
366 unsigned int lambda2; ///< (lambda*lambda) >> FF_LAMBDA_SHIFT
158c7f05 367 int *lambda_table;
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368 int adaptive_quant; ///< use adaptive quantization
369 int dquant; ///< qscale difference to prev qscale
975a1447 370 int pict_type; ///< AV_PICTURE_TYPE_I, AV_PICTURE_TYPE_P, AV_PICTURE_TYPE_B, ...
14e2a940 371 int last_pict_type; //FIXME removes
115329f1 372 int last_non_b_pict_type; ///< used for mpeg4 gmc b-frames & ratecontrol
ba0c8981 373 int droppable;
de6d9b64 374 int frame_rate_index;
88e51e1f 375 int last_lambda_for[5]; ///< last lambda for a specific pict type
c52f5d66 376 int skipdct; ///< skip dct and code zero residual
5e5c247a 377
de6d9b64 378 /* motion compensation */
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379 int unrestricted_mv; ///< mv can point outside of the coded picture
380 int h263_long_vectors; ///< use horrible h263v1 long vector mode
277f4827 381
bb628dae 382 DSPContext dsp; ///< pointers for accelerated dsp functions
8c53d39e 383 VideoDSPContext vdsp;
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384 int f_code; ///< forward MV resolution
385 int b_code; ///< backward MV resolution for B Frames (mpeg4)
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386 int16_t (*p_mv_table_base)[2];
387 int16_t (*b_forw_mv_table_base)[2];
388 int16_t (*b_back_mv_table_base)[2];
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389 int16_t (*b_bidir_forw_mv_table_base)[2];
390 int16_t (*b_bidir_back_mv_table_base)[2];
7bc9090a 391 int16_t (*b_direct_mv_table_base)[2];
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392 int16_t (*p_field_mv_table_base[2][2])[2];
393 int16_t (*b_field_mv_table_base[2][2][2])[2];
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394 int16_t (*p_mv_table)[2]; ///< MV table (1MV per MB) p-frame encoding
395 int16_t (*b_forw_mv_table)[2]; ///< MV table (1MV per MB) forward mode b-frame encoding
396 int16_t (*b_back_mv_table)[2]; ///< MV table (1MV per MB) backward mode b-frame encoding
397 int16_t (*b_bidir_forw_mv_table)[2]; ///< MV table (1MV per MB) bidir mode b-frame encoding
398 int16_t (*b_bidir_back_mv_table)[2]; ///< MV table (1MV per MB) bidir mode b-frame encoding
399 int16_t (*b_direct_mv_table)[2]; ///< MV table (1MV per MB) direct mode b-frame encoding
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400 int16_t (*p_field_mv_table[2][2])[2]; ///< MV table (2MV per MB) interlaced p-frame encoding
401 int16_t (*b_field_mv_table[2][2][2])[2];///< MV table (4MV per MB) interlaced b-frame encoding
402 uint8_t (*p_field_select_table[2]);
403 uint8_t (*b_field_select_table[2][2]);
115329f1 404 int me_method; ///< ME algorithm
de6d9b64 405 int mv_dir;
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406#define MV_DIR_FORWARD 1
407#define MV_DIR_BACKWARD 2
277f4827 408#define MV_DIRECT 4 ///< bidirectional mode where the difference equals the MV of the last P/S/I-Frame (mpeg4)
de6d9b64 409 int mv_type;
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410#define MV_TYPE_16X16 0 ///< 1 vector for the whole mb
411#define MV_TYPE_8X8 1 ///< 4 vectors (h263, mpeg4 4MV)
412#define MV_TYPE_16X8 2 ///< 2 vectors, one per 16x8 block
413#define MV_TYPE_FIELD 3 ///< 2 vectors, one per field
414#define MV_TYPE_DMV 4 ///< 2 vectors, special mpeg2 Dual Prime Vectors
415 /**motion vectors for a macroblock
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416 first coordinate : 0 = forward 1 = backward
417 second " : depend on type
418 third " : 0 = x, 1 = y
419 */
420 int mv[2][4][2];
421 int field_select[2][2];
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422 int last_mv[2][2][2]; ///< last MV, used for MV prediction in MPEG1 & B-frame MPEG4
423 uint8_t *fcode_tab; ///< smallest fcode needed for each MV
841f65f2 424 int16_t direct_scale_mv[2][64]; ///< precomputed to avoid divisions in ff_mpeg4_set_direct_mv
115329f1 425
1457ab52 426 MotionEstContext me;
de6d9b64 427
115329f1 428 int no_rounding; /**< apply no rounding to motion compensation (MPEG4, msmpeg4, ...)
e42dba48 429 for b-frames rounding mode is always 0 */
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430
431 /* macroblock layer */
432 int mb_x, mb_y;
9b8709d1 433 int mb_skip_run;
de6d9b64 434 int mb_intra;
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435 uint16_t *mb_type; ///< Table for candidate MB types for encoding
436#define CANDIDATE_MB_TYPE_INTRA 0x01
437#define CANDIDATE_MB_TYPE_INTER 0x02
438#define CANDIDATE_MB_TYPE_INTER4V 0x04
160d679c 439#define CANDIDATE_MB_TYPE_SKIPPED 0x08
7bc9090a 440//#define MB_TYPE_GMC 0x10
7f2fe444 441
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442#define CANDIDATE_MB_TYPE_DIRECT 0x10
443#define CANDIDATE_MB_TYPE_FORWARD 0x20
444#define CANDIDATE_MB_TYPE_BACKWARD 0x40
445#define CANDIDATE_MB_TYPE_BIDIR 0x80
446
447#define CANDIDATE_MB_TYPE_INTER_I 0x100
448#define CANDIDATE_MB_TYPE_FORWARD_I 0x200
449#define CANDIDATE_MB_TYPE_BACKWARD_I 0x400
450#define CANDIDATE_MB_TYPE_BIDIR_I 0x800
4278e7a6 451
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MN
452#define CANDIDATE_MB_TYPE_DIRECT0 0x1000
453
277f4827 454 int block_index[6]; ///< index to current MB in block based arrays with edges
4278e7a6 455 int block_wrap[6];
7d1c3fc1 456 uint8_t *dest[3];
115329f1 457
7bc9090a 458 int *mb_index2xy; ///< mb_index -> mb_x + mb_y*mb_stride
4278e7a6 459
277f4827 460 /** matrix transmitted in the bitstream */
0c1a9eda
ZK
461 uint16_t intra_matrix[64];
462 uint16_t chroma_intra_matrix[64];
463 uint16_t inter_matrix[64];
464 uint16_t chroma_inter_matrix[64];
1984f635 465#define QUANT_BIAS_SHIFT 8
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DB
466 int intra_quant_bias; ///< bias for the quantizer
467 int inter_quant_bias; ///< bias for the quantizer
468 int min_qcoeff; ///< minimum encodable coefficient
469 int max_qcoeff; ///< maximum encodable coefficient
470 int ac_esc_length; ///< num of bits needed to encode the longest esc
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MN
471 uint8_t *intra_ac_vlc_length;
472 uint8_t *intra_ac_vlc_last_length;
473 uint8_t *inter_ac_vlc_length;
474 uint8_t *inter_ac_vlc_last_length;
67725183 475 uint8_t *luma_dc_vlc_length;
c442d75c 476#define UNI_AC_ENC_INDEX(run,level) ((run)*128 + (level))
477ab036 477
2d974017 478 int coded_score[8];
f2f6134b 479
277f4827 480 /** precomputed matrix (combine qscale and DCT renorm) */
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MN
481 int (*q_intra_matrix)[64];
482 int (*q_inter_matrix)[64];
642ccefb
MN
483 /** identical to the above but for MMX & these are not permutated, second 64 entries are bias*/
484 uint16_t (*q_intra_matrix16)[2][64];
485 uint16_t (*q_inter_matrix16)[2][64];
115329f1 486
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487 /* noise reduction */
488 int (*dct_error_sum)[64];
489 int dct_count[2];
490 uint16_t (*dct_offset)[64];
de6d9b64 491
277f4827 492 void *opaque; ///< private data for the user
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FB
493
494 /* bit rate control */
0c1a9eda 495 int64_t total_bits;
115329f1 496 int frame_bits; ///< bits used for the current frame
07506002 497 int next_lambda; ///< next lambda used for retrying to encode a frame
277f4827 498 RateControlContext rc_context; ///< contains stuff only accessed in ratecontrol.c
9cdd6a24 499
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500 /* statistics, used for 2-pass encoding */
501 int mv_bits;
502 int header_bits;
503 int i_tex_bits;
504 int p_tex_bits;
505 int i_count;
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506 int f_count;
507 int b_count;
098eefe1 508 int skip_count;
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MN
509 int misc_bits; ///< cbp, mb_type
510 int last_bits; ///< temp var used for calculating the above vars
115329f1 511
7f2fe444 512 /* error concealment / resync */
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513 int resync_mb_x; ///< x position of last resync marker
514 int resync_mb_y; ///< y position of last resync marker
515 GetBitContext last_resync_gb; ///< used to search for the next resync marker
277f4827 516 int mb_num_left; ///< number of MBs left in this video packet (for partitioned Slices only)
115329f1 517 int next_p_frame_damaged; ///< set if the next p frame is damaged, to avoid showing trashed b frames
5b22d6e1 518 int err_recognition;
115329f1 519
d7425f59 520 ParseContext parse_context;
098eefe1 521
102d3908 522 /* H.263 specific */
644d98a4 523 int gob_index;
dba019da 524 int obmc; ///< overlapped block motion compensation
9f0a705d 525 int showed_packed_warning; ///< flag for having shown the warning about divxs invalid b frames
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MS
526 int mb_info; ///< interval for outputting info about mb offsets as side data
527 int prev_mb_info, last_mb_info;
528 uint8_t *mb_info_ptr;
529 int mb_info_size;
115329f1 530
544286b3 531 /* H.263+ specific */
115329f1 532 int umvplus; ///< == H263+ && unrestricted_mv
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533 int h263_aic_dir; ///< AIC direction: 0 = left, 1 = top
534 int h263_slice_structured;
dba019da 535 int alt_inter_vlc; ///< alternative inter vlc
68b94c35 536 int modified_quant;
115329f1 537 int loop_filter;
b056e73c 538 int custom_pcf;
115329f1 539
de6d9b64 540 /* mpeg4 specific */
115329f1 541 int time_increment_bits; ///< number of bits to represent the fractional part of time
9dbcbd92 542 int last_time_base;
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DB
543 int time_base; ///< time in seconds of last I,P,S Frame
544 int64_t time; ///< time of current frame
0c1a9eda 545 int64_t last_non_b_time;
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DB
546 uint16_t pp_time; ///< time distance between the last 2 p,s,i frames
547 uint16_t pb_time; ///< time distance between the last b and p,s,i frame
0c1a9eda 548 uint16_t pp_field_time;
115329f1 549 uint16_t pb_field_time; ///< like above, just for interlaced
1a565432
FB
550 int shape;
551 int vol_sprite_usage;
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552 int sprite_width;
553 int sprite_height;
554 int sprite_left;
555 int sprite_top;
556 int sprite_brightness_change;
73c8e514 557 int num_sprite_warping_points;
44eb4951 558 int real_sprite_warping_points;
11b93979 559 uint16_t sprite_traj[4][2]; ///< sprite trajectory points
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DB
560 int sprite_offset[2][2]; ///< sprite offset[isChroma][isMVY]
561 int sprite_delta[2][2]; ///< sprite_delta [isY][isMVY]
562 int sprite_shift[2]; ///< sprite shift [isChroma]
73c8e514 563 int mcsel;
1a565432 564 int quant_precision;
115329f1 565 int quarter_sample; ///< 1->qpel, 0->half pel ME/MC
cc9ba006 566 int scalability;
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567 int hierachy_type;
568 int enhancement_type;
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MN
569 int new_pred;
570 int reduced_res_vop;
0da71265 571 int aspect_ratio_info; //FIXME remove
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MN
572 int sprite_warping_accuracy;
573 int low_latency_sprite;
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DB
574 int data_partitioning; ///< data partitioning flag from header
575 int partitioned_frame; ///< is current frame partitioned
576 int rvlc; ///< reversible vlc
277f4827 577 int resync_marker; ///< could this stream contain resync markers
115329f1 578 int low_delay; ///< no reordering needed / has no b-frames
1ff662cc 579 int vo_type;
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DB
580 int vol_control_parameters; ///< does the stream contain the low_delay flag, used to workaround buggy encoders
581 int intra_dc_threshold; ///< QP above whch the ac VLC should be used for intra dc
7f12a978 582 int use_intra_dc_vlc;
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DB
583 PutBitContext tex_pb; ///< used for data partitioned VOPs
584 PutBitContext pb2; ///< used for data partitioned VOPs
d930ef19 585 int mpeg_quant;
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DB
586 int t_frame; ///< time distance of first I -> B, used for interlaced b frames
587 int padding_bug_score; ///< used to detect the VERY common padding bug in MPEG4
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588 int cplx_estimation_trash_i;
589 int cplx_estimation_trash_p;
590 int cplx_estimation_trash_b;
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MN
591
592 /* divx specific, used to workaround (many) bugs in divx5 */
593 int divx_version;
594 int divx_build;
d5a21172 595 int divx_packed;
0c1a9eda 596 uint8_t *bitstream_buffer; //Divx 5.01 puts several frames in a single one, this is used to reorder them
eec1c6b9 597 int bitstream_buffer_size;
f038fe8b 598 unsigned int allocated_bitstream_buffer_size;
115329f1 599
7da71a5c 600 int xvid_build;
115329f1 601
4d2858de 602 /* lavc specific stuff, used to workaround bugs in libavcodec */
4d2858de 603 int lavc_build;
115329f1 604
de6d9b64 605 /* RV10 specific */
115329f1 606 int rv10_version; ///< RV10 version: 0 or 3
de6d9b64 607 int rv10_first_dc_coded[3];
94f28061 608 int orig_width, orig_height;
115329f1 609
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FB
610 /* MJPEG specific */
611 struct MJpegContext *mjpeg_ctx;
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DB
612 int mjpeg_vsample[3]; ///< vertical sampling factors, default = {2, 1, 1}
613 int mjpeg_hsample[3]; ///< horizontal sampling factors, default = {2, 1, 1}
de6d9b64
FB
614
615 /* MSMPEG4 specific */
616 int mv_table_index;
617 int rl_table_index;
618 int rl_chroma_table_index;
619 int dc_table_index;
620 int use_skip_mb_code;
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DB
621 int slice_height; ///< in macroblocks
622 int first_slice_line; ///< used in mpeg4 too to handle resync markers
ae40484c 623 int flipflop_rounding;
277f4827 624 int msmpeg4_version; ///< 0=not msmpeg4, 1=mp41, 2=mp42, 3=mp43/divx3 4=wmv1/7 5=wmv2/8
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625 int per_mb_rl_table;
626 int esc3_level_length;
627 int esc3_run_length;
277f4827 628 /** [mb_intra][isChroma][level][run][last] */
6b460aa3 629 int (*ac_stats)[2][MAX_LEVEL+1][MAX_RUN+1][2];
de0f2f4c 630 int inter_intra_pred;
1457ab52 631 int mspel;
0151a6f5 632
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FB
633 /* decompression specific */
634 GetBitContext gb;
635
1e491e29 636 /* Mpeg1 specific */
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DB
637 int gop_picture_number; ///< index of the first picture of a GOP based on fake_pic_num & mpeg1 specific
638 int last_mv_dir; ///< last mv_dir, used for b frame encoding
0da71265 639 int broken_link; ///< no_output_of_prior_pics_flag
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DB
640 uint8_t *vbv_delay_ptr; ///< pointer to vbv_delay in the bitstream
641
7eb2d654 642 /* MPEG-2-specific - I wished not to have to support this mess. */
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FB
643 int progressive_sequence;
644 int mpeg_f_code[2][2];
645 int picture_structure;
646/* picture type */
647#define PICT_TOP_FIELD 1
648#define PICT_BOTTOM_FIELD 2
649#define PICT_FRAME 3
650
651 int intra_dc_precision;
652 int frame_pred_frame_dct;
653 int top_field_first;
654 int concealment_motion_vectors;
655 int q_scale_type;
656 int intra_vlc_format;
657 int alternate_scan;
658 int repeat_first_field;
659 int chroma_420_type;
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IK
660 int chroma_format;
661#define CHROMA_420 1
662#define CHROMA_422 2
663#define CHROMA_444 3
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IK
664 int chroma_x_shift;//depend on pix_format, that depend on chroma_format
665 int chroma_y_shift;
5e5c247a 666
de6d9b64 667 int progressive_frame;
cd8c64e1 668 int full_pel[2];
de6d9b64 669 int interlaced_dct;
de6d9b64 670 int first_slice;
c3bf0288 671 int first_field; ///< is 1 for the first field of a field picture 0 otherwise
2c5e1efc 672 int drop_frame_timecode; ///< timecode is in drop frame format.
aed79007 673 int scan_offset; ///< reserve space for SVCD scan offset user data.
ba58dabc 674
644d98a4 675 /* RTP specific */
e4eadb4b 676 int rtp_mode;
115329f1 677
0c1a9eda 678 uint8_t *ptr_lastgob;
7eb2d654 679 int swap_uv; //vcr2 codec is an MPEG-2 variant with U and V swapped
88bd7fdc 680 int16_t (*pblocks[12])[64];
115329f1 681
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DB
682 int16_t (*block)[64]; ///< points to one of the following blocks
683 int16_t (*blocks)[8][64]; // for HQ mode we need to keep the best block
684 int (*decode_mb)(struct MpegEncContext *s, int16_t block[6][64]); // used by some codecs to avoid a switch()
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MN
685#define SLICE_OK 0
686#define SLICE_ERROR -1
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MN
687#define SLICE_END -2 ///<end marker found
688#define SLICE_NOEND -3 ///<no end marker or error found but mb count exceeded
115329f1
DB
689
690 void (*dct_unquantize_mpeg1_intra)(struct MpegEncContext *s,
88bd7fdc 691 int16_t *block/*align 16*/, int n, int qscale);
115329f1 692 void (*dct_unquantize_mpeg1_inter)(struct MpegEncContext *s,
88bd7fdc 693 int16_t *block/*align 16*/, int n, int qscale);
115329f1 694 void (*dct_unquantize_mpeg2_intra)(struct MpegEncContext *s,
88bd7fdc 695 int16_t *block/*align 16*/, int n, int qscale);
115329f1 696 void (*dct_unquantize_mpeg2_inter)(struct MpegEncContext *s,
88bd7fdc 697 int16_t *block/*align 16*/, int n, int qscale);
115329f1 698 void (*dct_unquantize_h263_intra)(struct MpegEncContext *s,
88bd7fdc 699 int16_t *block/*align 16*/, int n, int qscale);
115329f1 700 void (*dct_unquantize_h263_inter)(struct MpegEncContext *s,
88bd7fdc 701 int16_t *block/*align 16*/, int n, int qscale);
115329f1 702 void (*dct_unquantize_h261_intra)(struct MpegEncContext *s,
88bd7fdc 703 int16_t *block/*align 16*/, int n, int qscale);
115329f1 704 void (*dct_unquantize_h261_inter)(struct MpegEncContext *s,
88bd7fdc 705 int16_t *block/*align 16*/, int n, int qscale);
d50635cd 706 void (*dct_unquantize_intra)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both)
88bd7fdc 707 int16_t *block/*align 16*/, int n, int qscale);
d50635cd 708 void (*dct_unquantize_inter)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both)
88bd7fdc
DB
709 int16_t *block/*align 16*/, int n, int qscale);
710 int (*dct_quantize)(struct MpegEncContext *s, int16_t *block/*align 16*/, int n, int qscale, int *overflow);
711 int (*fast_dct_quantize)(struct MpegEncContext *s, int16_t *block/*align 16*/, int n, int qscale, int *overflow);
712 void (*denoise_dct)(struct MpegEncContext *s, int16_t *block);
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713
714 int mpv_flags; ///< flags set by private options
23bfcc06 715 int quantizer_noise_shaping;
89b81a1c 716
89b81a1c
RB
717 /* temp buffers for rate control */
718 float *cplx_tab, *bits_tab;
8701f4f8
JG
719
720 /* flag to indicate a reinitialization is required, e.g. after
721 * a frame size change */
722 int context_reinit;
54974c62
AK
723
724 ERContext er;
de6d9b64
FB
725} MpegEncContext;
726
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AK
727#define REBASE_PICTURE(pic, new_ctx, old_ctx) \
728 ((pic && pic >= old_ctx->picture && \
759001c5 729 pic < old_ctx->picture + MAX_PICTURE_COUNT) ? \
d9df93ef 730 &new_ctx->picture[pic - old_ctx->picture] : NULL)
4d2858de 731
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732/* mpegvideo_enc common options */
733#define FF_MPV_FLAG_SKIP_RD 0x0001
a249f0cc 734#define FF_MPV_FLAG_STRICT_GOP 0x0002
ff71a383 735#define FF_MPV_FLAG_QP_RD 0x0004
af3d804f 736#define FF_MPV_FLAG_CBP_RD 0x0008
ed019b8e
AK
737
738#define FF_MPV_OFFSET(x) offsetof(MpegEncContext, x)
739#define FF_MPV_OPT_FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)
740#define FF_MPV_COMMON_OPTS \
d58dd4b5 741{ "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" },\
124134e4
MS
742{ "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" },\
743{ "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" },\
744{ "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" },\
745{ "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" },\
63efd83a 746{ "luma_elim_threshold", "single coefficient elimination threshold for luminance (negative values also consider dc coefficient)",\
e6153f17 747 FF_MPV_OFFSET(luma_elim_threshold), AV_OPT_TYPE_INT, { .i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS },\
63efd83a 748{ "chroma_elim_threshold", "single coefficient elimination threshold for chrominance (negative values also consider dc coefficient)",\
e6153f17
MS
749 FF_MPV_OFFSET(chroma_elim_threshold), AV_OPT_TYPE_INT, { .i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS },\
750{ "quantizer_noise_shaping", NULL, FF_MPV_OFFSET(quantizer_noise_shaping), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, FF_MPV_OPT_FLAGS },
ed019b8e
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751
752extern const AVOption ff_mpv_generic_options[];
753
754#define FF_MPV_GENERIC_CLASS(name) \
755static const AVClass name ## _class = {\
756 .class_name = #name " encoder",\
757 .item_name = av_default_item_name,\
758 .option = ff_mpv_generic_options,\
759 .version = LIBAVUTIL_VERSION_INT,\
760};
761
7a851153
MR
762/**
763 * Set the given MpegEncContext to common defaults (same for encoding
764 * and decoding). The changed fields will not depend upon the prior
765 * state of the MpegEncContext.
766 */
767void ff_MPV_common_defaults(MpegEncContext *s);
768
efd29844
MS
769void ff_MPV_decode_defaults(MpegEncContext *s);
770int ff_MPV_common_init(MpegEncContext *s);
f1d8763a 771int ff_mpv_frame_size_alloc(MpegEncContext *s, int linesize);
435c0b87 772int ff_MPV_common_frame_size_change(MpegEncContext *s);
efd29844 773void ff_MPV_common_end(MpegEncContext *s);
88bd7fdc 774void ff_MPV_decode_mb(MpegEncContext *s, int16_t block[12][64]);
efd29844
MS
775int ff_MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx);
776void ff_MPV_frame_end(MpegEncContext *s);
777int ff_MPV_encode_init(AVCodecContext *avctx);
778int ff_MPV_encode_end(AVCodecContext *avctx);
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779int ff_MPV_encode_picture(AVCodecContext *avctx, AVPacket *pkt,
780 const AVFrame *frame, int *got_packet);
d211547d 781void ff_MPV_encode_init_x86(MpegEncContext *s);
dc402854 782void ff_MPV_common_init_x86(MpegEncContext *s);
efd29844 783void ff_MPV_common_init_axp(MpegEncContext *s);
efd29844
MS
784void ff_MPV_common_init_arm(MpegEncContext *s);
785void ff_MPV_common_init_altivec(MpegEncContext *s);
786void ff_MPV_common_init_bfin(MpegEncContext *s);
7f2fe444 787void ff_clean_intra_table_entries(MpegEncContext *s);
1d0feb5d
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788void ff_draw_horiz_band(AVCodecContext *avctx, DSPContext *dsp, Picture *cur,
789 Picture *last, int y, int h, int picture_structure,
790 int first_field, int draw_edges, int low_delay,
791 int v_edge_pos, int h_edge_pos);
792void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h);
7a06ff14 793void ff_mpeg_flush(AVCodecContext *avctx);
759001c5 794void ff_print_debug_info(MpegEncContext *s, Picture *p);
191e8ca7 795void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix);
6a9c8594 796void ff_release_unused_pictures(MpegEncContext *s, int remove_current);
5f194811 797int ff_find_unused_picture(MpegEncContext *s, int shared);
88bd7fdc 798void ff_denoise_dct(MpegEncContext *s, int16_t *block);
f1d8763a 799int ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src);
efd29844
MS
800int ff_MPV_lowest_referenced_row(MpegEncContext *s, int dir);
801void ff_MPV_report_decode_progress(MpegEncContext *s);
6a9c8594 802int ff_mpeg_update_thread_context(AVCodecContext *dst, const AVCodecContext *src);
bb174ff1 803void ff_set_qscale(MpegEncContext * s, int qscale);
59b571c1 804
54974c62 805void ff_mpeg_er_frame_start(MpegEncContext *s);
46b4feec 806
6180ade7 807int ff_dct_common_init(MpegEncContext *s);
69cea75f
BC
808void ff_convert_matrix(DSPContext *dsp, int (*qmat)[64], uint16_t (*qmat16)[2][64],
809 const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra);
88bd7fdc 810int ff_dct_quantize_c(MpegEncContext *s, int16_t *block, int n, int qscale, int *overflow);
46b4feec 811
7d1c3fc1 812void ff_init_block_index(MpegEncContext *s);
4d2858de 813
7a851153
MR
814void ff_MPV_motion(MpegEncContext *s,
815 uint8_t *dest_y, uint8_t *dest_cb,
816 uint8_t *dest_cr, int dir,
817 uint8_t **ref_picture,
818 op_pixels_func (*pix_op)[4],
819 qpel_mc_func (*qpix_op)[16]);
820
a4a750d3 821/**
58c42af7
DB
822 * Allocate a Picture.
823 * The pixels are allocated/set by calling get_buffer() if shared = 0.
a4a750d3
BC
824 */
825int ff_alloc_picture(MpegEncContext *s, Picture *pic, int shared);
826
716d413c 827extern const enum AVPixelFormat ff_pixfmt_list_420[];
09a9b45e 828
0b016eb9
DB
829/**
830 * permute block according to permuatation.
831 * @param last last non zero element in scantable order
832 */
833void ff_block_permute(int16_t *block, uint8_t *permutation, const uint8_t *scantable, int last);
834
4d2858de 835static inline void ff_update_block_index(MpegEncContext *s){
2bcbd984 836 const int block_size = 8;
178fcca8 837
4d2858de
MN
838 s->block_index[0]+=2;
839 s->block_index[1]+=2;
840 s->block_index[2]+=2;
841 s->block_index[3]+=2;
842 s->block_index[4]++;
843 s->block_index[5]++;
178fcca8
MN
844 s->dest[0]+= 2*block_size;
845 s->dest[1]+= block_size;
846 s->dest[2]+= block_size;
4d2858de
MN
847}
848
4d2a4834 849static inline int get_bits_diff(MpegEncContext *s){
fe455f33 850 const int bits= put_bits_count(&s->pb);
4d2a4834
MN
851 const int last= s->last_bits;
852
853 s->last_bits = bits;
854
855 return bits - last;
856}
4d2858de 857
00f0564f
MR
858static inline int ff_h263_round_chroma(int x){
859 static const uint8_t h263_chroma_roundtab[16] = {
860 // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
c3d0c11b 861 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1,
00f0564f 862 };
c3d0c11b 863 return h263_chroma_roundtab[x & 0xf] + (x >> 3);
00f0564f
MR
864}
865
de6d9b64 866/* motion_est.c */
9dbcbd92
MN
867void ff_estimate_p_frame_motion(MpegEncContext * s,
868 int mb_x, int mb_y);
869void ff_estimate_b_frame_motion(MpegEncContext * s,
870 int mb_x, int mb_y);
871int ff_get_best_fcode(MpegEncContext * s, int16_t (*mv_table)[2], int type);
872void ff_fix_long_p_mvs(MpegEncContext * s);
bb198e19
MN
873void ff_fix_long_mvs(MpegEncContext * s, uint8_t *field_select_table, int field_select,
874 int16_t (*mv_table)[2], int f_code, int type, int truncate);
c192426f 875int ff_init_me(MpegEncContext *s);
f5fb6b34 876int ff_pre_estimate_p_frame_motion(MpegEncContext * s, int mb_x, int mb_y);
4bdd3b76 877int ff_epzs_motion_search(MpegEncContext * s, int *mx_ptr, int *my_ptr,
115329f1
DB
878 int P[10][2], int src_index, int ref_index, int16_t (*last_mv)[2],
879 int ref_mv_scale, int size, int h);
4bdd3b76 880int ff_get_mb_score(MpegEncContext * s, int mx, int my, int src_index,
155ec6ed 881 int ref_index, int size, int h, int add_rate);
4d2858de 882
de6d9b64 883/* mpeg12.c */
c26ae41d 884extern const uint8_t ff_mpeg1_dc_scale_table[128];
53f66cee 885extern const uint8_t * const ff_mpeg2_dc_scale_table[4];
de6d9b64 886
d6c8dcb8
MS
887void ff_mpeg1_encode_picture_header(MpegEncContext *s, int picture_number);
888void ff_mpeg1_encode_mb(MpegEncContext *s,
88bd7fdc 889 int16_t block[6][64],
d6c8dcb8 890 int motion_x, int motion_y);
0151a6f5 891void ff_mpeg1_encode_init(MpegEncContext *s);
9b8709d1
MN
892void ff_mpeg1_encode_slice_header(MpegEncContext *s);
893void ff_mpeg1_clean_buffers(MpegEncContext *s);
a4c7a5ea 894int ff_mpeg1_find_frame_end(ParseContext *pc, const uint8_t *buf, int buf_size, AVCodecParserContext *s);
de6d9b64 895
c26ae41d 896extern const uint8_t ff_aic_dc_scale_table[32];
332f9ac4
MN
897extern const uint8_t ff_h263_chroma_qscale_table[32];
898extern const uint8_t ff_h263_loop_filter_strength[32];
68b94c35 899
5f6c92d4
MN
900/* h261.c */
901void ff_h261_loop_filter(MpegEncContext *s);
1c3990db
MN
902void ff_h261_reorder_mb_index(MpegEncContext* s);
903void ff_h261_encode_mb(MpegEncContext *s,
88bd7fdc 904 int16_t block[6][64],
1c3990db
MN
905 int motion_x, int motion_y);
906void ff_h261_encode_picture_header(MpegEncContext * s, int picture_number);
907void ff_h261_encode_init(MpegEncContext *s);
a57d13b7 908int ff_h261_get_picture_format(int width, int height);
5f6c92d4 909
554daa24 910
de6d9b64 911/* rv10.c */
6c28d657
MS
912void ff_rv10_encode_picture_header(MpegEncContext *s, int picture_number);
913int ff_rv_decode_dc(MpegEncContext *s, int n);
914void ff_rv20_encode_picture_header(MpegEncContext *s, int picture_number);
de6d9b64 915
4d2858de 916
de6d9b64 917/* msmpeg4.c */
04d38225
MS
918void ff_msmpeg4_encode_picture_header(MpegEncContext * s, int picture_number);
919void ff_msmpeg4_encode_ext_header(MpegEncContext * s);
920void ff_msmpeg4_encode_mb(MpegEncContext * s,
88bd7fdc 921 int16_t block[6][64],
04d38225
MS
922 int motion_x, int motion_y);
923int ff_msmpeg4_decode_picture_header(MpegEncContext * s);
924int ff_msmpeg4_decode_ext_header(MpegEncContext * s, int buf_size);
261a3c2d 925int ff_msmpeg4_decode_init(AVCodecContext *avctx);
0151a6f5 926void ff_msmpeg4_encode_init(MpegEncContext *s);
1457ab52 927int ff_wmv2_decode_picture_header(MpegEncContext * s);
b1609412 928int ff_wmv2_decode_secondary_picture_header(MpegEncContext * s);
88bd7fdc 929void ff_wmv2_add_mb(MpegEncContext *s, int16_t block[6][64], uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr);
1457ab52 930void ff_mspel_motion(MpegEncContext *s,
0c1a9eda
ZK
931 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
932 uint8_t **ref_picture, op_pixels_func (*pix_op)[4],
1457ab52
MN
933 int motion_x, int motion_y, int h);
934int ff_wmv2_encode_picture_header(MpegEncContext * s, int picture_number);
115329f1 935void ff_wmv2_encode_mb(MpegEncContext * s,
88bd7fdc 936 int16_t block[6][64],
1457ab52 937 int motion_x, int motion_y);
de6d9b64 938
759001c5
AK
939int ff_mpeg_ref_picture(MpegEncContext *s, Picture *dst, Picture *src);
940void ff_mpeg_unref_picture(MpegEncContext *s, Picture *picture);
941
98790382 942#endif /* AVCODEC_MPEGVIDEO_H */