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