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1 | /* |
2 | * Generic DCT based hybrid video encoder | |
3 | * Copyright (c) 2000, 2001, 2002 Fabrice Bellard | |
4 | * Copyright (c) 2002-2004 Michael Niedermayer | |
5 | * | |
6 | * This file is part of FFmpeg. | |
7 | * | |
8 | * FFmpeg is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU Lesser General Public | |
10 | * License as published by the Free Software Foundation; either | |
11 | * version 2.1 of the License, or (at your option) any later version. | |
12 | * | |
13 | * FFmpeg is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | * Lesser General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU Lesser General Public | |
19 | * License along with FFmpeg; if not, write to the Free Software | |
20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
21 | */ | |
22 | ||
23 | /** | |
24 | * @file | |
25 | * mpegvideo header. | |
26 | */ | |
27 | ||
28 | #ifndef AVCODEC_MPEGVIDEO_H | |
29 | #define AVCODEC_MPEGVIDEO_H | |
30 | ||
f6fa7814 DM |
31 | #include <float.h> |
32 | ||
2ba45a60 DM |
33 | #include "avcodec.h" |
34 | #include "blockdsp.h" | |
35 | #include "error_resilience.h" | |
36 | #include "fdctdsp.h" | |
37 | #include "get_bits.h" | |
38 | #include "h264chroma.h" | |
39 | #include "h263dsp.h" | |
40 | #include "hpeldsp.h" | |
41 | #include "idctdsp.h" | |
42 | #include "me_cmp.h" | |
43 | #include "mpegvideodsp.h" | |
44 | #include "mpegvideoencdsp.h" | |
45 | #include "pixblockdsp.h" | |
46 | #include "put_bits.h" | |
47 | #include "ratecontrol.h" | |
48 | #include "parser.h" | |
49 | #include "mpeg12data.h" | |
50 | #include "qpeldsp.h" | |
51 | #include "rl.h" | |
52 | #include "thread.h" | |
53 | #include "videodsp.h" | |
54 | ||
55 | #include "libavutil/opt.h" | |
56 | #include "libavutil/timecode.h" | |
57 | ||
58 | #define FRAME_SKIPPED 100 ///< return value for header parsers if frame is not coded | |
59 | ||
60 | enum OutputFormat { | |
61 | FMT_MPEG1, | |
62 | FMT_H261, | |
63 | FMT_H263, | |
64 | FMT_MJPEG, | |
65 | }; | |
66 | ||
67 | #define MAX_FCODE 7 | |
68 | #define MAX_MV 4096 | |
69 | ||
70 | #define MAX_THREADS 32 | |
71 | #define MAX_PICTURE_COUNT 36 | |
72 | ||
73 | #define MAX_B_FRAMES 16 | |
74 | ||
75 | #define ME_MAP_SIZE 64 | |
76 | ||
77 | #define MAX_MB_BYTES (30*16*16*3/8 + 120) | |
78 | ||
79 | #define INPLACE_OFFSET 16 | |
80 | ||
81 | #define EDGE_WIDTH 16 | |
82 | ||
83 | /* Start codes. */ | |
84 | #define SEQ_END_CODE 0x000001b7 | |
85 | #define SEQ_START_CODE 0x000001b3 | |
86 | #define GOP_START_CODE 0x000001b8 | |
87 | #define PICTURE_START_CODE 0x00000100 | |
88 | #define SLICE_MIN_START_CODE 0x00000101 | |
89 | #define SLICE_MAX_START_CODE 0x000001af | |
90 | #define EXT_START_CODE 0x000001b5 | |
91 | #define USER_START_CODE 0x000001b2 | |
92 | ||
93 | /* encoding scans */ | |
94 | extern const uint8_t ff_alternate_horizontal_scan[64]; | |
95 | extern const uint8_t ff_alternate_vertical_scan[64]; | |
96 | ||
97 | struct MpegEncContext; | |
98 | ||
99 | /** | |
100 | * Picture. | |
101 | */ | |
102 | typedef struct Picture{ | |
103 | struct AVFrame *f; | |
104 | ThreadFrame tf; | |
105 | ||
106 | AVBufferRef *qscale_table_buf; | |
107 | int8_t *qscale_table; | |
108 | ||
109 | AVBufferRef *motion_val_buf[2]; | |
110 | int16_t (*motion_val[2])[2]; | |
111 | ||
112 | AVBufferRef *mb_type_buf; | |
113 | uint32_t *mb_type; ///< types and macros are defined in mpegutils.h | |
114 | ||
115 | AVBufferRef *mbskip_table_buf; | |
116 | uint8_t *mbskip_table; | |
117 | ||
118 | AVBufferRef *ref_index_buf[2]; | |
119 | int8_t *ref_index[2]; | |
120 | ||
121 | AVBufferRef *mb_var_buf; | |
122 | uint16_t *mb_var; ///< Table for MB variances | |
123 | ||
124 | AVBufferRef *mc_mb_var_buf; | |
125 | uint16_t *mc_mb_var; ///< Table for motion compensated MB variances | |
126 | ||
127 | int alloc_mb_width; ///< mb_width used to allocate tables | |
128 | int alloc_mb_height; ///< mb_height used to allocate tables | |
129 | ||
130 | AVBufferRef *mb_mean_buf; | |
131 | uint8_t *mb_mean; ///< Table for MB luminance | |
132 | ||
133 | AVBufferRef *hwaccel_priv_buf; | |
134 | /** | |
135 | * hardware accelerator private data | |
136 | */ | |
137 | void *hwaccel_picture_private; | |
138 | ||
139 | int field_picture; ///< whether or not the picture was encoded in separate fields | |
140 | ||
141 | int64_t mb_var_sum; ///< sum of MB variance for current frame | |
142 | int64_t mc_mb_var_sum; ///< motion compensated MB variance for current frame | |
143 | ||
144 | int b_frame_score; | |
145 | int needs_realloc; ///< Picture needs to be reallocated (eg due to a frame size change) | |
146 | ||
147 | int reference; | |
148 | int shared; | |
149 | ||
150 | uint64_t error[AV_NUM_DATA_POINTERS]; | |
151 | } Picture; | |
152 | ||
153 | /** | |
154 | * Motion estimation context. | |
155 | */ | |
156 | typedef struct MotionEstContext{ | |
157 | AVCodecContext *avctx; | |
158 | int skip; ///< set if ME is skipped for the current MB | |
159 | int co_located_mv[4][2]; ///< mv from last P-frame for direct mode ME | |
160 | int direct_basis_mv[4][2]; | |
161 | uint8_t *scratchpad; ///< data area for the ME algo, so that the ME does not need to malloc/free | |
162 | uint8_t *best_mb; | |
163 | uint8_t *temp_mb[2]; | |
164 | uint8_t *temp; | |
165 | int best_bits; | |
166 | uint32_t *map; ///< map to avoid duplicate evaluations | |
167 | uint32_t *score_map; ///< map to store the scores | |
168 | unsigned map_generation; | |
169 | int pre_penalty_factor; | |
170 | int penalty_factor; /**< an estimate of the bits required to | |
171 | code a given mv value, e.g. (1,0) takes | |
172 | more bits than (0,0). We have to | |
173 | estimate whether any reduction in | |
174 | residual is worth the extra bits. */ | |
175 | int sub_penalty_factor; | |
176 | int mb_penalty_factor; | |
177 | int flags; | |
178 | int sub_flags; | |
179 | int mb_flags; | |
180 | int pre_pass; ///< = 1 for the pre pass | |
181 | int dia_size; | |
182 | int xmin; | |
183 | int xmax; | |
184 | int ymin; | |
185 | int ymax; | |
186 | int pred_x; | |
187 | int pred_y; | |
188 | uint8_t *src[4][4]; | |
189 | uint8_t *ref[4][4]; | |
190 | int stride; | |
191 | int uvstride; | |
192 | /* temp variables for picture complexity calculation */ | |
193 | int64_t mc_mb_var_sum_temp; | |
194 | int64_t mb_var_sum_temp; | |
195 | int scene_change_score; | |
196 | /* cmp, chroma_cmp;*/ | |
197 | op_pixels_func (*hpel_put)[4]; | |
198 | op_pixels_func (*hpel_avg)[4]; | |
199 | qpel_mc_func (*qpel_put)[16]; | |
200 | qpel_mc_func (*qpel_avg)[16]; | |
201 | uint8_t (*mv_penalty)[MAX_MV*2+1]; ///< amount of bits needed to encode a MV | |
202 | uint8_t *current_mv_penalty; | |
203 | int (*sub_motion_search)(struct MpegEncContext * s, | |
204 | int *mx_ptr, int *my_ptr, int dmin, | |
205 | int src_index, int ref_index, | |
206 | int size, int h); | |
207 | }MotionEstContext; | |
208 | ||
209 | /** | |
210 | * MpegEncContext. | |
211 | */ | |
212 | typedef struct MpegEncContext { | |
213 | AVClass *class; | |
214 | ||
215 | int y_dc_scale, c_dc_scale; | |
216 | int ac_pred; | |
217 | int block_last_index[12]; ///< last non zero coefficient in block | |
218 | int h263_aic; ///< Advanded INTRA Coding (AIC) | |
219 | ||
220 | /* scantables */ | |
221 | ScanTable inter_scantable; ///< if inter == intra then intra should be used to reduce tha cache usage | |
222 | ScanTable intra_scantable; | |
223 | ScanTable intra_h_scantable; | |
224 | ScanTable intra_v_scantable; | |
225 | ||
226 | /* WARNING: changes above this line require updates to hardcoded | |
227 | * offsets used in asm. */ | |
228 | ||
229 | struct AVCodecContext *avctx; | |
230 | /* the following parameters must be initialized before encoding */ | |
231 | int width, height;///< picture size. must be a multiple of 16 | |
232 | int gop_size; | |
233 | int intra_only; ///< if true, only intra pictures are generated | |
234 | int bit_rate; ///< wanted bit rate | |
235 | enum OutputFormat out_format; ///< output format | |
236 | int h263_pred; ///< use mpeg4/h263 ac/dc predictions | |
237 | int pb_frame; ///< PB frame mode (0 = none, 1 = base, 2 = improved) | |
238 | ||
239 | /* the following codec id fields are deprecated in favor of codec_id */ | |
240 | int h263_plus; ///< h263 plus headers | |
241 | int h263_flv; ///< use flv h263 header | |
242 | ||
243 | enum AVCodecID codec_id; /* see AV_CODEC_ID_xxx */ | |
244 | int fixed_qscale; ///< fixed qscale if non zero | |
245 | int encoding; ///< true if we are encoding (vs decoding) | |
246 | int flags; ///< AVCodecContext.flags (HQ, MV4, ...) | |
247 | int flags2; ///< AVCodecContext.flags2 | |
248 | int max_b_frames; ///< max number of b-frames for encoding | |
249 | int luma_elim_threshold; | |
250 | int chroma_elim_threshold; | |
251 | int strict_std_compliance; ///< strictly follow the std (MPEG4, ...) | |
252 | int workaround_bugs; ///< workaround bugs in encoders which cannot be detected automatically | |
253 | int codec_tag; ///< internal codec_tag upper case converted from avctx codec_tag | |
254 | int stream_codec_tag; ///< internal stream_codec_tag upper case converted from avctx stream_codec_tag | |
255 | /* the following fields are managed internally by the encoder */ | |
256 | ||
257 | /* sequence parameters */ | |
258 | int context_initialized; | |
259 | int input_picture_number; ///< used to set pic->display_picture_number, should not be used for/by anything else | |
260 | int coded_picture_number; ///< used to set pic->coded_picture_number, should not be used for/by anything else | |
261 | int picture_number; //FIXME remove, unclear definition | |
262 | int picture_in_gop_number; ///< 0-> first pic in gop, ... | |
263 | int mb_width, mb_height; ///< number of MBs horizontally & vertically | |
264 | int mb_stride; ///< mb_width+1 used for some arrays to allow simple addressing of left & top MBs without sig11 | |
265 | int b8_stride; ///< 2*mb_width+1 used for some 8x8 block arrays to allow simple addressing | |
266 | int h_edge_pos, v_edge_pos;///< horizontal / vertical position of the right/bottom edge (pixel replication) | |
267 | int mb_num; ///< number of MBs of a picture | |
268 | ptrdiff_t linesize; ///< line size, in bytes, may be different from width | |
269 | ptrdiff_t uvlinesize; ///< line size, for chroma in bytes, may be different from width | |
270 | Picture *picture; ///< main picture buffer | |
271 | Picture **input_picture; ///< next pictures on display order for encoding | |
272 | Picture **reordered_input_picture; ///< pointer to the next pictures in codedorder for encoding | |
273 | ||
274 | int64_t user_specified_pts; ///< last non-zero pts from AVFrame which was passed into avcodec_encode_video2() | |
275 | /** | |
276 | * pts difference between the first and second input frame, used for | |
277 | * calculating dts of the first frame when there's a delay */ | |
278 | int64_t dts_delta; | |
279 | /** | |
280 | * reordered pts to be used as dts for the next output frame when there's | |
281 | * a delay */ | |
282 | int64_t reordered_pts; | |
283 | ||
284 | /** bit output */ | |
285 | PutBitContext pb; | |
286 | ||
287 | int start_mb_y; ///< start mb_y of this thread (so current thread should process start_mb_y <= row < end_mb_y) | |
288 | int end_mb_y; ///< end mb_y of this thread (so current thread should process start_mb_y <= row < end_mb_y) | |
289 | struct MpegEncContext *thread_context[MAX_THREADS]; | |
290 | int slice_context_count; ///< number of used thread_contexts | |
291 | ||
292 | /** | |
293 | * copy of the previous picture structure. | |
294 | * note, linesize & data, might not match the previous picture (for field pictures) | |
295 | */ | |
296 | Picture last_picture; | |
297 | ||
298 | /** | |
299 | * copy of the next picture structure. | |
300 | * note, linesize & data, might not match the next picture (for field pictures) | |
301 | */ | |
302 | Picture next_picture; | |
303 | ||
304 | /** | |
305 | * copy of the source picture structure for encoding. | |
306 | * note, linesize & data, might not match the source picture (for field pictures) | |
307 | */ | |
308 | Picture new_picture; | |
309 | ||
310 | /** | |
311 | * copy of the current picture structure. | |
312 | * note, linesize & data, might not match the current picture (for field pictures) | |
313 | */ | |
314 | Picture current_picture; ///< buffer to store the decompressed current picture | |
315 | ||
316 | Picture *last_picture_ptr; ///< pointer to the previous picture. | |
317 | Picture *next_picture_ptr; ///< pointer to the next picture (for bidir pred) | |
318 | Picture *current_picture_ptr; ///< pointer to the current picture | |
319 | int last_dc[3]; ///< last DC values for MPEG1 | |
320 | int16_t *dc_val_base; | |
321 | int16_t *dc_val[3]; ///< used for mpeg4 DC prediction, all 3 arrays must be continuous | |
322 | const uint8_t *y_dc_scale_table; ///< qscale -> y_dc_scale table | |
323 | const uint8_t *c_dc_scale_table; ///< qscale -> c_dc_scale table | |
324 | const uint8_t *chroma_qscale_table; ///< qscale -> chroma_qscale (h263) | |
325 | uint8_t *coded_block_base; | |
326 | uint8_t *coded_block; ///< used for coded block pattern prediction (msmpeg4v3, wmv1) | |
327 | int16_t (*ac_val_base)[16]; | |
328 | int16_t (*ac_val[3])[16]; ///< used for mpeg4 AC prediction, all 3 arrays must be continuous | |
329 | int mb_skipped; ///< MUST BE SET only during DECODING | |
330 | uint8_t *mbskip_table; /**< used to avoid copy if macroblock skipped (for black regions for example) | |
331 | and used for b-frame encoding & decoding (contains skip table of next P Frame) */ | |
332 | uint8_t *mbintra_table; ///< used to avoid setting {ac, dc, cbp}-pred stuff to zero on inter MB decoding | |
333 | uint8_t *cbp_table; ///< used to store cbp, ac_pred for partitioned decoding | |
334 | uint8_t *pred_dir_table; ///< used to store pred_dir for partitioned decoding | |
335 | uint8_t *edge_emu_buffer; ///< temporary buffer for if MVs point to out-of-frame data | |
336 | uint8_t *rd_scratchpad; ///< scratchpad for rate distortion mb decision | |
337 | uint8_t *obmc_scratchpad; | |
338 | uint8_t *b_scratchpad; ///< scratchpad used for writing into write only buffers | |
339 | ||
340 | int qscale; ///< QP | |
341 | int chroma_qscale; ///< chroma QP | |
342 | unsigned int lambda; ///< lagrange multipler used in rate distortion | |
343 | unsigned int lambda2; ///< (lambda*lambda) >> FF_LAMBDA_SHIFT | |
344 | int *lambda_table; | |
345 | int adaptive_quant; ///< use adaptive quantization | |
346 | int dquant; ///< qscale difference to prev qscale | |
347 | int closed_gop; ///< MPEG1/2 GOP is closed | |
348 | int pict_type; ///< AV_PICTURE_TYPE_I, AV_PICTURE_TYPE_P, AV_PICTURE_TYPE_B, ... | |
349 | int vbv_delay; | |
350 | int last_pict_type; //FIXME removes | |
351 | int last_non_b_pict_type; ///< used for mpeg4 gmc b-frames & ratecontrol | |
352 | int droppable; | |
353 | int frame_rate_index; | |
354 | AVRational mpeg2_frame_rate_ext; | |
355 | int last_lambda_for[5]; ///< last lambda for a specific pict type | |
356 | int skipdct; ///< skip dct and code zero residual | |
357 | ||
358 | /* motion compensation */ | |
359 | int unrestricted_mv; ///< mv can point outside of the coded picture | |
360 | int h263_long_vectors; ///< use horrible h263v1 long vector mode | |
361 | ||
362 | BlockDSPContext bdsp; | |
363 | FDCTDSPContext fdsp; | |
364 | H264ChromaContext h264chroma; | |
365 | HpelDSPContext hdsp; | |
366 | IDCTDSPContext idsp; | |
367 | MECmpContext mecc; | |
368 | MpegVideoDSPContext mdsp; | |
369 | MpegvideoEncDSPContext mpvencdsp; | |
370 | PixblockDSPContext pdsp; | |
371 | QpelDSPContext qdsp; | |
372 | VideoDSPContext vdsp; | |
373 | H263DSPContext h263dsp; | |
374 | int f_code; ///< forward MV resolution | |
375 | int b_code; ///< backward MV resolution for B Frames (mpeg4) | |
376 | int16_t (*p_mv_table_base)[2]; | |
377 | int16_t (*b_forw_mv_table_base)[2]; | |
378 | int16_t (*b_back_mv_table_base)[2]; | |
379 | int16_t (*b_bidir_forw_mv_table_base)[2]; | |
380 | int16_t (*b_bidir_back_mv_table_base)[2]; | |
381 | int16_t (*b_direct_mv_table_base)[2]; | |
382 | int16_t (*p_field_mv_table_base[2][2])[2]; | |
383 | int16_t (*b_field_mv_table_base[2][2][2])[2]; | |
384 | int16_t (*p_mv_table)[2]; ///< MV table (1MV per MB) p-frame encoding | |
385 | int16_t (*b_forw_mv_table)[2]; ///< MV table (1MV per MB) forward mode b-frame encoding | |
386 | int16_t (*b_back_mv_table)[2]; ///< MV table (1MV per MB) backward mode b-frame encoding | |
387 | int16_t (*b_bidir_forw_mv_table)[2]; ///< MV table (1MV per MB) bidir mode b-frame encoding | |
388 | int16_t (*b_bidir_back_mv_table)[2]; ///< MV table (1MV per MB) bidir mode b-frame encoding | |
389 | int16_t (*b_direct_mv_table)[2]; ///< MV table (1MV per MB) direct mode b-frame encoding | |
390 | int16_t (*p_field_mv_table[2][2])[2]; ///< MV table (2MV per MB) interlaced p-frame encoding | |
391 | int16_t (*b_field_mv_table[2][2][2])[2];///< MV table (4MV per MB) interlaced b-frame encoding | |
392 | uint8_t (*p_field_select_table[2]); | |
393 | uint8_t (*b_field_select_table[2][2]); | |
394 | int me_method; ///< ME algorithm | |
395 | int mv_dir; | |
396 | #define MV_DIR_FORWARD 1 | |
397 | #define MV_DIR_BACKWARD 2 | |
398 | #define MV_DIRECT 4 ///< bidirectional mode where the difference equals the MV of the last P/S/I-Frame (mpeg4) | |
399 | int mv_type; | |
400 | #define MV_TYPE_16X16 0 ///< 1 vector for the whole mb | |
401 | #define MV_TYPE_8X8 1 ///< 4 vectors (h263, mpeg4 4MV) | |
402 | #define MV_TYPE_16X8 2 ///< 2 vectors, one per 16x8 block | |
403 | #define MV_TYPE_FIELD 3 ///< 2 vectors, one per field | |
404 | #define MV_TYPE_DMV 4 ///< 2 vectors, special mpeg2 Dual Prime Vectors | |
405 | /**motion vectors for a macroblock | |
406 | first coordinate : 0 = forward 1 = backward | |
407 | second " : depend on type | |
408 | third " : 0 = x, 1 = y | |
409 | */ | |
410 | int mv[2][4][2]; | |
411 | int field_select[2][2]; | |
412 | int last_mv[2][2][2]; ///< last MV, used for MV prediction in MPEG1 & B-frame MPEG4 | |
413 | uint8_t *fcode_tab; ///< smallest fcode needed for each MV | |
414 | int16_t direct_scale_mv[2][64]; ///< precomputed to avoid divisions in ff_mpeg4_set_direct_mv | |
415 | ||
416 | MotionEstContext me; | |
417 | ||
418 | int no_rounding; /**< apply no rounding to motion compensation (MPEG4, msmpeg4, ...) | |
419 | for b-frames rounding mode is always 0 */ | |
420 | ||
421 | /* macroblock layer */ | |
422 | int mb_x, mb_y; | |
423 | int mb_skip_run; | |
424 | int mb_intra; | |
425 | uint16_t *mb_type; ///< Table for candidate MB types for encoding (defines in mpegutils.h) | |
426 | ||
427 | int block_index[6]; ///< index to current MB in block based arrays with edges | |
428 | int block_wrap[6]; | |
429 | uint8_t *dest[3]; | |
430 | ||
431 | int *mb_index2xy; ///< mb_index -> mb_x + mb_y*mb_stride | |
432 | ||
433 | /** matrix transmitted in the bitstream */ | |
434 | uint16_t intra_matrix[64]; | |
435 | uint16_t chroma_intra_matrix[64]; | |
436 | uint16_t inter_matrix[64]; | |
437 | uint16_t chroma_inter_matrix[64]; | |
438 | ||
439 | int intra_quant_bias; ///< bias for the quantizer | |
440 | int inter_quant_bias; ///< bias for the quantizer | |
441 | int min_qcoeff; ///< minimum encodable coefficient | |
442 | int max_qcoeff; ///< maximum encodable coefficient | |
443 | int ac_esc_length; ///< num of bits needed to encode the longest esc | |
444 | uint8_t *intra_ac_vlc_length; | |
445 | uint8_t *intra_ac_vlc_last_length; | |
446 | uint8_t *inter_ac_vlc_length; | |
447 | uint8_t *inter_ac_vlc_last_length; | |
448 | uint8_t *luma_dc_vlc_length; | |
449 | #define UNI_AC_ENC_INDEX(run,level) ((run)*128 + (level)) | |
450 | ||
451 | int coded_score[12]; | |
452 | ||
453 | /** precomputed matrix (combine qscale and DCT renorm) */ | |
454 | int (*q_intra_matrix)[64]; | |
455 | int (*q_chroma_intra_matrix)[64]; | |
456 | int (*q_inter_matrix)[64]; | |
457 | /** identical to the above but for MMX & these are not permutated, second 64 entries are bias*/ | |
458 | uint16_t (*q_intra_matrix16)[2][64]; | |
459 | uint16_t (*q_chroma_intra_matrix16)[2][64]; | |
460 | uint16_t (*q_inter_matrix16)[2][64]; | |
461 | ||
462 | /* noise reduction */ | |
463 | int (*dct_error_sum)[64]; | |
464 | int dct_count[2]; | |
465 | uint16_t (*dct_offset)[64]; | |
466 | ||
467 | /* bit rate control */ | |
468 | int64_t total_bits; | |
469 | int frame_bits; ///< bits used for the current frame | |
470 | int stuffing_bits; ///< bits used for stuffing | |
471 | int next_lambda; ///< next lambda used for retrying to encode a frame | |
472 | RateControlContext rc_context; ///< contains stuff only accessed in ratecontrol.c | |
473 | ||
474 | /* statistics, used for 2-pass encoding */ | |
475 | int mv_bits; | |
476 | int header_bits; | |
477 | int i_tex_bits; | |
478 | int p_tex_bits; | |
479 | int i_count; | |
480 | int f_count; | |
481 | int b_count; | |
482 | int skip_count; | |
483 | int misc_bits; ///< cbp, mb_type | |
484 | int last_bits; ///< temp var used for calculating the above vars | |
485 | ||
486 | /* error concealment / resync */ | |
487 | int resync_mb_x; ///< x position of last resync marker | |
488 | int resync_mb_y; ///< y position of last resync marker | |
489 | GetBitContext last_resync_gb; ///< used to search for the next resync marker | |
490 | int mb_num_left; ///< number of MBs left in this video packet (for partitioned Slices only) | |
491 | int next_p_frame_damaged; ///< set if the next p frame is damaged, to avoid showing trashed b frames | |
492 | int err_recognition; | |
493 | ||
494 | ParseContext parse_context; | |
495 | ||
496 | /* H.263 specific */ | |
497 | int gob_index; | |
498 | int obmc; ///< overlapped block motion compensation | |
499 | int mb_info; ///< interval for outputting info about mb offsets as side data | |
500 | int prev_mb_info, last_mb_info; | |
501 | uint8_t *mb_info_ptr; | |
502 | int mb_info_size; | |
503 | int ehc_mode; | |
504 | ||
505 | /* H.263+ specific */ | |
506 | int umvplus; ///< == H263+ && unrestricted_mv | |
507 | int h263_aic_dir; ///< AIC direction: 0 = left, 1 = top | |
508 | int h263_slice_structured; | |
509 | int alt_inter_vlc; ///< alternative inter vlc | |
510 | int modified_quant; | |
511 | int loop_filter; | |
512 | int custom_pcf; | |
513 | ||
514 | /* mpeg4 specific */ | |
515 | ///< number of bits to represent the fractional part of time (encoder only) | |
516 | int time_increment_bits; | |
517 | int last_time_base; | |
518 | int time_base; ///< time in seconds of last I,P,S Frame | |
519 | int64_t time; ///< time of current frame | |
520 | int64_t last_non_b_time; | |
521 | uint16_t pp_time; ///< time distance between the last 2 p,s,i frames | |
522 | uint16_t pb_time; ///< time distance between the last b and p,s,i frame | |
523 | uint16_t pp_field_time; | |
524 | uint16_t pb_field_time; ///< like above, just for interlaced | |
525 | int real_sprite_warping_points; | |
526 | int sprite_offset[2][2]; ///< sprite offset[isChroma][isMVY] | |
527 | int sprite_delta[2][2]; ///< sprite_delta [isY][isMVY] | |
528 | int mcsel; | |
529 | int quant_precision; | |
530 | int quarter_sample; ///< 1->qpel, 0->half pel ME/MC | |
531 | int aspect_ratio_info; //FIXME remove | |
532 | int sprite_warping_accuracy; | |
533 | int data_partitioning; ///< data partitioning flag from header | |
534 | int partitioned_frame; ///< is current frame partitioned | |
535 | int low_delay; ///< no reordering needed / has no b-frames | |
536 | int vo_type; | |
537 | PutBitContext tex_pb; ///< used for data partitioned VOPs | |
538 | PutBitContext pb2; ///< used for data partitioned VOPs | |
539 | int mpeg_quant; | |
540 | int padding_bug_score; ///< used to detect the VERY common padding bug in MPEG4 | |
541 | ||
542 | /* divx specific, used to workaround (many) bugs in divx5 */ | |
543 | int divx_packed; | |
544 | uint8_t *bitstream_buffer; //Divx 5.01 puts several frames in a single one, this is used to reorder them | |
545 | int bitstream_buffer_size; | |
546 | unsigned int allocated_bitstream_buffer_size; | |
547 | ||
548 | /* RV10 specific */ | |
549 | int rv10_version; ///< RV10 version: 0 or 3 | |
550 | int rv10_first_dc_coded[3]; | |
551 | ||
552 | /* MJPEG specific */ | |
553 | struct MJpegContext *mjpeg_ctx; | |
554 | int esc_pos; | |
555 | ||
556 | /* MSMPEG4 specific */ | |
557 | int mv_table_index; | |
558 | int rl_table_index; | |
559 | int rl_chroma_table_index; | |
560 | int dc_table_index; | |
561 | int use_skip_mb_code; | |
562 | int slice_height; ///< in macroblocks | |
563 | int first_slice_line; ///< used in mpeg4 too to handle resync markers | |
564 | int flipflop_rounding; | |
565 | int msmpeg4_version; ///< 0=not msmpeg4, 1=mp41, 2=mp42, 3=mp43/divx3 4=wmv1/7 5=wmv2/8 | |
566 | int per_mb_rl_table; | |
567 | int esc3_level_length; | |
568 | int esc3_run_length; | |
569 | /** [mb_intra][isChroma][level][run][last] */ | |
570 | int (*ac_stats)[2][MAX_LEVEL+1][MAX_RUN+1][2]; | |
571 | int inter_intra_pred; | |
572 | int mspel; | |
573 | ||
574 | /* decompression specific */ | |
575 | GetBitContext gb; | |
576 | ||
577 | /* Mpeg1 specific */ | |
578 | int gop_picture_number; ///< index of the first picture of a GOP based on fake_pic_num & mpeg1 specific | |
579 | int last_mv_dir; ///< last mv_dir, used for b frame encoding | |
580 | uint8_t *vbv_delay_ptr; ///< pointer to vbv_delay in the bitstream | |
581 | ||
582 | /* MPEG-2-specific - I wished not to have to support this mess. */ | |
583 | int progressive_sequence; | |
584 | int mpeg_f_code[2][2]; | |
585 | ||
586 | // picture structure defines are loaded from mpegutils.h | |
587 | int picture_structure; | |
588 | ||
589 | int intra_dc_precision; | |
590 | int frame_pred_frame_dct; | |
591 | int top_field_first; | |
592 | int concealment_motion_vectors; | |
593 | int q_scale_type; | |
594 | int intra_vlc_format; | |
595 | int alternate_scan; | |
596 | int seq_disp_ext; | |
597 | int repeat_first_field; | |
598 | int chroma_420_type; | |
599 | int chroma_format; | |
600 | #define CHROMA_420 1 | |
601 | #define CHROMA_422 2 | |
602 | #define CHROMA_444 3 | |
603 | int chroma_x_shift;//depend on pix_format, that depend on chroma_format | |
604 | int chroma_y_shift; | |
605 | ||
606 | int progressive_frame; | |
607 | int full_pel[2]; | |
608 | int interlaced_dct; | |
609 | int first_field; ///< is 1 for the first field of a field picture 0 otherwise | |
610 | int drop_frame_timecode; ///< timecode is in drop frame format. | |
611 | int scan_offset; ///< reserve space for SVCD scan offset user data. | |
612 | ||
613 | /* RTP specific */ | |
614 | int rtp_mode; | |
615 | ||
616 | char *tc_opt_str; ///< timecode option string | |
617 | AVTimecode tc; ///< timecode context | |
618 | ||
619 | uint8_t *ptr_lastgob; | |
620 | int swap_uv; //vcr2 codec is an MPEG-2 variant with U and V swapped | |
621 | int pack_pblocks; //xvmc needs to keep blocks without gaps. | |
622 | int16_t (*pblocks[12])[64]; | |
623 | ||
624 | int16_t (*block)[64]; ///< points to one of the following blocks | |
625 | int16_t (*blocks)[12][64]; // for HQ mode we need to keep the best block | |
626 | int (*decode_mb)(struct MpegEncContext *s, int16_t block[6][64]); // used by some codecs to avoid a switch() | |
627 | #define SLICE_OK 0 | |
628 | #define SLICE_ERROR -1 | |
629 | #define SLICE_END -2 ///<end marker found | |
630 | #define SLICE_NOEND -3 ///<no end marker or error found but mb count exceeded | |
631 | ||
632 | void (*dct_unquantize_mpeg1_intra)(struct MpegEncContext *s, | |
633 | int16_t *block/*align 16*/, int n, int qscale); | |
634 | void (*dct_unquantize_mpeg1_inter)(struct MpegEncContext *s, | |
635 | int16_t *block/*align 16*/, int n, int qscale); | |
636 | void (*dct_unquantize_mpeg2_intra)(struct MpegEncContext *s, | |
637 | int16_t *block/*align 16*/, int n, int qscale); | |
638 | void (*dct_unquantize_mpeg2_inter)(struct MpegEncContext *s, | |
639 | int16_t *block/*align 16*/, int n, int qscale); | |
640 | void (*dct_unquantize_h263_intra)(struct MpegEncContext *s, | |
641 | int16_t *block/*align 16*/, int n, int qscale); | |
642 | void (*dct_unquantize_h263_inter)(struct MpegEncContext *s, | |
643 | int16_t *block/*align 16*/, int n, int qscale); | |
644 | void (*dct_unquantize_intra)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both) | |
645 | int16_t *block/*align 16*/, int n, int qscale); | |
646 | void (*dct_unquantize_inter)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both) | |
647 | int16_t *block/*align 16*/, int n, int qscale); | |
648 | int (*dct_quantize)(struct MpegEncContext *s, int16_t *block/*align 16*/, int n, int qscale, int *overflow); | |
649 | int (*fast_dct_quantize)(struct MpegEncContext *s, int16_t *block/*align 16*/, int n, int qscale, int *overflow); | |
650 | void (*denoise_dct)(struct MpegEncContext *s, int16_t *block); | |
651 | ||
652 | int mpv_flags; ///< flags set by private options | |
653 | int quantizer_noise_shaping; | |
654 | ||
f6fa7814 DM |
655 | /** |
656 | * ratecontrol qmin qmax limiting method | |
657 | * 0-> clipping, 1-> use a nice continuous function to limit qscale within qmin/qmax. | |
658 | */ | |
659 | float rc_qsquish; | |
660 | float rc_qmod_amp; | |
661 | int rc_qmod_freq; | |
662 | float rc_initial_cplx; | |
663 | float rc_buffer_aggressivity; | |
664 | float border_masking; | |
665 | int lmin, lmax; | |
666 | ||
667 | char *rc_eq; | |
668 | ||
2ba45a60 DM |
669 | /* temp buffers for rate control */ |
670 | float *cplx_tab, *bits_tab; | |
671 | ||
672 | /* flag to indicate a reinitialization is required, e.g. after | |
673 | * a frame size change */ | |
674 | int context_reinit; | |
675 | ||
676 | ERContext er; | |
677 | ||
678 | int error_rate; | |
679 | ||
680 | /* temporary frames used by b_frame_strategy = 2 */ | |
681 | AVFrame *tmp_frames[MAX_B_FRAMES + 2]; | |
682 | } MpegEncContext; | |
683 | ||
684 | #define REBASE_PICTURE(pic, new_ctx, old_ctx) \ | |
685 | ((pic && pic >= old_ctx->picture && \ | |
686 | pic < old_ctx->picture + MAX_PICTURE_COUNT) ? \ | |
687 | &new_ctx->picture[pic - old_ctx->picture] : NULL) | |
688 | ||
689 | /* mpegvideo_enc common options */ | |
690 | #define FF_MPV_FLAG_SKIP_RD 0x0001 | |
691 | #define FF_MPV_FLAG_STRICT_GOP 0x0002 | |
692 | #define FF_MPV_FLAG_QP_RD 0x0004 | |
693 | #define FF_MPV_FLAG_CBP_RD 0x0008 | |
694 | #define FF_MPV_FLAG_NAQ 0x0010 | |
695 | #define FF_MPV_FLAG_MV0 0x0020 | |
696 | ||
f6fa7814 | 697 | #ifndef FF_MPV_OFFSET |
2ba45a60 | 698 | #define FF_MPV_OFFSET(x) offsetof(MpegEncContext, x) |
f6fa7814 | 699 | #endif |
2ba45a60 DM |
700 | #define FF_MPV_OPT_FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM) |
701 | #define FF_MPV_COMMON_OPTS \ | |
702 | { "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" },\ | |
703 | { "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" },\ | |
704 | { "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" },\ | |
705 | { "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" },\ | |
706 | { "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" },\ | |
707 | { "naq", "normalize adaptive quantization", 0, AV_OPT_TYPE_CONST, { .i64 = FF_MPV_FLAG_NAQ }, 0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\ | |
708 | { "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" },\ | |
709 | { "luma_elim_threshold", "single coefficient elimination threshold for luminance (negative values also consider dc coefficient)",\ | |
710 | FF_MPV_OFFSET(luma_elim_threshold), AV_OPT_TYPE_INT, { .i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS },\ | |
711 | { "chroma_elim_threshold", "single coefficient elimination threshold for chrominance (negative values also consider dc coefficient)",\ | |
712 | FF_MPV_OFFSET(chroma_elim_threshold), AV_OPT_TYPE_INT, { .i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS },\ | |
713 | { "quantizer_noise_shaping", NULL, FF_MPV_OFFSET(quantizer_noise_shaping), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, FF_MPV_OPT_FLAGS },\ | |
714 | { "error_rate", "Simulate errors in the bitstream to test error concealment.", \ | |
f6fa7814 DM |
715 | FF_MPV_OFFSET(error_rate), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, FF_MPV_OPT_FLAGS },\ |
716 | {"qsquish", "how to keep quantizer between qmin and qmax (0 = clip, 1 = use differentiable function)", \ | |
717 | FF_MPV_OFFSET(rc_qsquish), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, 0, 99, FF_MPV_OPT_FLAGS}, \ | |
718 | {"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}, \ | |
719 | {"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}, \ | |
720 | {"rc_eq", "Set rate control equation. When computing the expression, besides the standard functions " \ | |
721 | "defined in the section 'Expression Evaluation', the following functions are available: " \ | |
722 | "bits2qp(bits), qp2bits(qp). Also the following constants are available: iTex pTex tex mv " \ | |
723 | "fCode iCount mcVar var isI isP isB avgQP qComp avgIITex avgPITex avgPPTex avgBPTex avgTex.", \ | |
724 | FF_MPV_OFFSET(rc_eq), AV_OPT_TYPE_STRING, .flags = FF_MPV_OPT_FLAGS }, \ | |
725 | {"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}, \ | |
726 | {"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}, \ | |
727 | {"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}, \ | |
728 | {"lmin", "minimum Lagrange factor (VBR)", FF_MPV_OFFSET(lmin), AV_OPT_TYPE_INT, {.i64 = 2*FF_QP2LAMBDA }, 0, INT_MAX, FF_MPV_OPT_FLAGS }, \ | |
729 | {"lmax", "maximum Lagrange factor (VBR)", FF_MPV_OFFSET(lmax), AV_OPT_TYPE_INT, {.i64 = 31*FF_QP2LAMBDA }, 0, INT_MAX, FF_MPV_OPT_FLAGS }, \ | |
2ba45a60 DM |
730 | |
731 | extern const AVOption ff_mpv_generic_options[]; | |
732 | ||
733 | #define FF_MPV_GENERIC_CLASS(name) \ | |
734 | static const AVClass name ## _class = {\ | |
735 | .class_name = #name " encoder",\ | |
736 | .item_name = av_default_item_name,\ | |
737 | .option = ff_mpv_generic_options,\ | |
738 | .version = LIBAVUTIL_VERSION_INT,\ | |
739 | }; | |
740 | ||
741 | /** | |
742 | * Set the given MpegEncContext to common defaults (same for encoding | |
743 | * and decoding). The changed fields will not depend upon the prior | |
744 | * state of the MpegEncContext. | |
745 | */ | |
746 | void ff_mpv_common_defaults(MpegEncContext *s); | |
747 | ||
748 | void ff_dct_encode_init_x86(MpegEncContext *s); | |
749 | ||
750 | int ff_mpv_common_init(MpegEncContext *s); | |
751 | void ff_mpv_common_init_arm(MpegEncContext *s); | |
752 | void ff_mpv_common_init_axp(MpegEncContext *s); | |
753 | void ff_mpv_common_init_neon(MpegEncContext *s); | |
754 | void ff_mpv_common_init_ppc(MpegEncContext *s); | |
755 | void ff_mpv_common_init_x86(MpegEncContext *s); | |
756 | ||
757 | int ff_mpv_common_frame_size_change(MpegEncContext *s); | |
758 | void ff_mpv_common_end(MpegEncContext *s); | |
759 | ||
760 | void ff_mpv_decode_defaults(MpegEncContext *s); | |
761 | void ff_mpv_decode_init(MpegEncContext *s, AVCodecContext *avctx); | |
762 | void ff_mpv_decode_mb(MpegEncContext *s, int16_t block[12][64]); | |
763 | void ff_mpv_report_decode_progress(MpegEncContext *s); | |
764 | ||
765 | int ff_mpv_frame_start(MpegEncContext *s, AVCodecContext *avctx); | |
766 | void ff_mpv_frame_end(MpegEncContext *s); | |
767 | ||
768 | int ff_mpv_lowest_referenced_row(MpegEncContext *s, int dir); | |
769 | ||
770 | int ff_mpv_encode_init(AVCodecContext *avctx); | |
771 | void ff_mpv_encode_init_x86(MpegEncContext *s); | |
772 | ||
773 | int ff_mpv_encode_end(AVCodecContext *avctx); | |
774 | int ff_mpv_encode_picture(AVCodecContext *avctx, AVPacket *pkt, | |
775 | const AVFrame *frame, int *got_packet); | |
776 | ||
777 | void ff_clean_intra_table_entries(MpegEncContext *s); | |
778 | void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h); | |
779 | void ff_mpeg_flush(AVCodecContext *avctx); | |
780 | ||
781 | void ff_print_debug_info(MpegEncContext *s, Picture *p, AVFrame *pict); | |
782 | void ff_print_debug_info2(AVCodecContext *avctx, AVFrame *pict, uint8_t *mbskip_table, | |
783 | uint32_t *mbtype_table, int8_t *qscale_table, int16_t (*motion_val[2])[2], | |
784 | int *low_delay, | |
785 | int mb_width, int mb_height, int mb_stride, int quarter_sample); | |
786 | ||
787 | int ff_mpv_export_qp_table(MpegEncContext *s, AVFrame *f, Picture *p, int qp_type); | |
788 | ||
789 | void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix); | |
790 | int ff_find_unused_picture(MpegEncContext *s, int shared); | |
791 | void ff_denoise_dct(MpegEncContext *s, int16_t *block); | |
792 | int ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src); | |
793 | int ff_mpeg_update_thread_context(AVCodecContext *dst, const AVCodecContext *src); | |
794 | void ff_set_qscale(MpegEncContext * s, int qscale); | |
795 | ||
796 | void ff_mpv_idct_init(MpegEncContext *s); | |
797 | int ff_dct_encode_init(MpegEncContext *s); | |
798 | void ff_convert_matrix(MpegEncContext *s, int (*qmat)[64], uint16_t (*qmat16)[2][64], | |
799 | const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra); | |
800 | int ff_dct_quantize_c(MpegEncContext *s, int16_t *block, int n, int qscale, int *overflow); | |
801 | ||
802 | void ff_init_block_index(MpegEncContext *s); | |
803 | ||
804 | void ff_mpv_motion(MpegEncContext *s, | |
805 | uint8_t *dest_y, uint8_t *dest_cb, | |
806 | uint8_t *dest_cr, int dir, | |
807 | uint8_t **ref_picture, | |
808 | op_pixels_func (*pix_op)[4], | |
809 | qpel_mc_func (*qpix_op)[16]); | |
810 | ||
811 | /** | |
812 | * Allocate a Picture. | |
813 | * The pixels are allocated/set by calling get_buffer() if shared = 0. | |
814 | */ | |
815 | int ff_alloc_picture(MpegEncContext *s, Picture *pic, int shared); | |
816 | ||
817 | /** | |
818 | * permute block according to permuatation. | |
819 | * @param last last non zero element in scantable order | |
820 | */ | |
821 | void ff_block_permute(int16_t *block, uint8_t *permutation, const uint8_t *scantable, int last); | |
822 | ||
823 | static inline void ff_update_block_index(MpegEncContext *s){ | |
824 | const int block_size= 8 >> s->avctx->lowres; | |
825 | ||
826 | s->block_index[0]+=2; | |
827 | s->block_index[1]+=2; | |
828 | s->block_index[2]+=2; | |
829 | s->block_index[3]+=2; | |
830 | s->block_index[4]++; | |
831 | s->block_index[5]++; | |
832 | s->dest[0]+= 2*block_size; | |
833 | s->dest[1]+= block_size; | |
834 | s->dest[2]+= block_size; | |
835 | } | |
836 | ||
837 | static inline int get_bits_diff(MpegEncContext *s){ | |
838 | const int bits= put_bits_count(&s->pb); | |
839 | const int last= s->last_bits; | |
840 | ||
841 | s->last_bits = bits; | |
842 | ||
843 | return bits - last; | |
844 | } | |
845 | ||
846 | static inline int ff_h263_round_chroma(int x){ | |
847 | static const uint8_t h263_chroma_roundtab[16] = { | |
848 | // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | |
849 | 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, | |
850 | }; | |
851 | return h263_chroma_roundtab[x & 0xf] + (x >> 3); | |
852 | } | |
853 | ||
854 | /* motion_est.c */ | |
855 | void ff_estimate_p_frame_motion(MpegEncContext * s, | |
856 | int mb_x, int mb_y); | |
857 | void ff_estimate_b_frame_motion(MpegEncContext * s, | |
858 | int mb_x, int mb_y); | |
859 | int ff_get_best_fcode(MpegEncContext * s, int16_t (*mv_table)[2], int type); | |
860 | void ff_fix_long_p_mvs(MpegEncContext * s); | |
861 | void ff_fix_long_mvs(MpegEncContext * s, uint8_t *field_select_table, int field_select, | |
862 | int16_t (*mv_table)[2], int f_code, int type, int truncate); | |
863 | int ff_init_me(MpegEncContext *s); | |
864 | int ff_pre_estimate_p_frame_motion(MpegEncContext * s, int mb_x, int mb_y); | |
865 | int ff_epzs_motion_search(MpegEncContext * s, int *mx_ptr, int *my_ptr, | |
866 | int P[10][2], int src_index, int ref_index, int16_t (*last_mv)[2], | |
867 | int ref_mv_scale, int size, int h); | |
868 | int ff_get_mb_score(MpegEncContext * s, int mx, int my, int src_index, | |
869 | int ref_index, int size, int h, int add_rate); | |
870 | ||
871 | /* mpeg12.c */ | |
872 | extern const uint8_t ff_mpeg1_dc_scale_table[128]; | |
873 | extern const uint8_t * const ff_mpeg2_dc_scale_table[4]; | |
874 | ||
875 | void ff_mpeg1_encode_picture_header(MpegEncContext *s, int picture_number); | |
876 | void ff_mpeg1_encode_mb(MpegEncContext *s, | |
f6fa7814 | 877 | int16_t block[8][64], |
2ba45a60 DM |
878 | int motion_x, int motion_y); |
879 | void ff_mpeg1_encode_init(MpegEncContext *s); | |
880 | void ff_mpeg1_encode_slice_header(MpegEncContext *s); | |
881 | ||
882 | extern const uint8_t ff_aic_dc_scale_table[32]; | |
883 | extern const uint8_t ff_h263_chroma_qscale_table[32]; | |
884 | ||
885 | /* rv10.c */ | |
886 | void ff_rv10_encode_picture_header(MpegEncContext *s, int picture_number); | |
887 | int ff_rv_decode_dc(MpegEncContext *s, int n); | |
888 | void ff_rv20_encode_picture_header(MpegEncContext *s, int picture_number); | |
889 | ||
890 | ||
891 | /* msmpeg4.c */ | |
892 | void ff_msmpeg4_encode_picture_header(MpegEncContext * s, int picture_number); | |
893 | void ff_msmpeg4_encode_ext_header(MpegEncContext * s); | |
894 | void ff_msmpeg4_encode_mb(MpegEncContext * s, | |
895 | int16_t block[6][64], | |
896 | int motion_x, int motion_y); | |
897 | int ff_msmpeg4_decode_picture_header(MpegEncContext * s); | |
898 | int ff_msmpeg4_decode_ext_header(MpegEncContext * s, int buf_size); | |
899 | int ff_msmpeg4_decode_init(AVCodecContext *avctx); | |
900 | void ff_msmpeg4_encode_init(MpegEncContext *s); | |
901 | int ff_wmv2_decode_picture_header(MpegEncContext * s); | |
902 | int ff_wmv2_decode_secondary_picture_header(MpegEncContext * s); | |
903 | void ff_wmv2_add_mb(MpegEncContext *s, int16_t block[6][64], uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr); | |
904 | void ff_mspel_motion(MpegEncContext *s, | |
905 | uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, | |
906 | uint8_t **ref_picture, op_pixels_func (*pix_op)[4], | |
907 | int motion_x, int motion_y, int h); | |
908 | int ff_wmv2_encode_picture_header(MpegEncContext * s, int picture_number); | |
909 | void ff_wmv2_encode_mb(MpegEncContext * s, | |
910 | int16_t block[6][64], | |
911 | int motion_x, int motion_y); | |
912 | ||
913 | int ff_mpeg_ref_picture(MpegEncContext *s, Picture *dst, Picture *src); | |
914 | void ff_mpeg_unref_picture(MpegEncContext *s, Picture *picture); | |
915 | void ff_free_picture_tables(Picture *pic); | |
916 | ||
917 | ||
918 | #endif /* AVCODEC_MPEGVIDEO_H */ |