1 /*****************************************************************************
2 * common.h: h264 encoder
3 *****************************************************************************
4 * Copyright (C) 2003 Laurent Aimar
5 * $Id: common.h,v 1.1 2004/06/03 19:27:06 fenrir Exp $
7 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
22 *****************************************************************************/
35 #define snprintf _snprintf
49 /****************************************************************************
51 ****************************************************************************/
52 #define X264_MIN(a,b) ( (a)<(b) ? (a) : (b) )
53 #define X264_MAX(a,b) ( (a)>(b) ? (a) : (b) )
54 #define X264_ABS(a) ( (a)< 0 ? -(a) : (a) )
55 #define X264_MIN3(a,b,c) X264_MIN((a),X264_MIN((b),(c)))
56 #define X264_MIN4(a,b,c,d) X264_MIN((a),X264_MIN3((b),(c),(d)))
58 /****************************************************************************
60 ****************************************************************************/
61 /* x264_malloc : will do or emulate a memalign
62 * XXX you HAVE TO use x264_free for buffer allocated
65 void *x264_malloc( int );
66 void *x264_realloc( void *p, int i_size );
67 void x264_free( void * );
69 /* mdate: return the current date in microsecond */
70 int64_t x264_mdate( void );
73 void x264_log( x264_t *h, int i_level, const char *psz_fmt, ... );
75 static inline int x264_clip3( int v, int i_min, int i_max )
77 return ( (v < i_min) ? i_min : (v > i_max) ? i_max : v );
80 static inline float x264_clip3f( float v, float f_min, float f_max )
82 return ( (v < f_min) ? f_min : (v > f_max) ? f_max : v );
85 static inline int x264_median( int a, int b, int c )
91 max = b; /* no need to do 'b > max' (more consuming than always doing affectation) */
98 return a + b + c - min - max;
102 /****************************************************************************
104 ****************************************************************************/
129 int i_idr_pic_id; /* -1 if nal_type != 5 */
132 int i_delta_poc_bottom;
135 int i_redundant_pic_cnt;
137 int b_direct_spatial_mv_pred;
139 int b_num_ref_idx_override;
140 int i_num_ref_idx_l0_active;
141 int i_num_ref_idx_l1_active;
143 int b_ref_pic_list_reordering_l0;
144 int b_ref_pic_list_reordering_l1;
148 } ref_pic_list_order[2][16];
150 int i_cabac_init_idc;
156 /* deblocking filter */
157 int i_disable_deblocking_filter_idc;
158 int i_alpha_c0_offset;
161 } x264_slice_header_t;
165 #define X264_SCAN8_SIZE (6*8)
166 #define X264_SCAN8_0 (4+1*8)
168 static const int x264_scan8[16+2*4] =
171 4+1*8, 5+1*8, 4+2*8, 5+2*8,
172 6+1*8, 7+1*8, 6+2*8, 7+2*8,
173 4+3*8, 5+3*8, 4+4*8, 5+4*8,
174 6+3*8, 7+3*8, 6+4*8, 7+4*8,
194 #define X264_BFRAME_MAX 16
196 typedef struct x264_ratecontrol_t x264_ratecontrol_t;
197 typedef struct x264_vlc_table_t x264_vlc_table_t;
201 /* encoder parameters */
204 /* bitstream output */
208 x264_nal_t nal[4]; /* for now 4 is enough */
209 int i_bitstream; /* size of p_bitstream */
210 uint8_t *p_bitstream; /* will hold data for all nal */
214 /* frame number/poc */
218 int i_frame_offset; /* decoding only */
219 int i_frame_num; /* decoding only */
220 int i_poc_msb; /* decoding only */
221 int i_poc_lsb; /* decoding only */
223 /* We use only one SPS and one PPS */
224 x264_sps_t sps_array[32];
226 x264_pps_t pps_array[256];
231 x264_slice_header_t sh;
238 /* Frames to be encoded */
239 x264_frame_t *current[X264_BFRAME_MAX+1];
240 /* Temporary buffer (eg B frames pending until we reach the I/P) */
241 x264_frame_t *next[X264_BFRAME_MAX+1];
243 x264_frame_t *unused[X264_BFRAME_MAX+1];
244 /* For adaptive B decision */
245 x264_frame_t *last_nonb;
247 /* frames used for reference +1 for decoding +1 sentinel */
248 x264_frame_t *reference[16+2+1+1];
250 int i_last_idr; /* Frame number of the last IDR */
252 int i_input; /* Number of input frames already accepted */
254 int i_max_dpb; /* Number of frames allocated in the decoded picture buffer */
257 int i_delay; /* Number of frames buffered for B reordering */
260 /* current frame being encoded */
263 /* frame being reconstructed */
266 /* references lists */
268 x264_frame_t *fref0[16]; /* ref list 0 */
270 x264_frame_t *fref1[16]; /* ref list 1 */
271 int b_ref_reorder[2];
275 /* Current MB DCT coeffs */
278 DECLARE_ALIGNED( int, luma16x16_dc[16], 16 );
279 DECLARE_ALIGNED( int, chroma_dc[2][4], 16 );
282 DECLARE_ALIGNED( int, residual_ac[15], 16 );
283 DECLARE_ALIGNED( int, luma4x4[16], 16 );
287 /* MB table and cache for current frame/mb */
290 int i_mb_count; /* number of mbs in a frame */
304 /* Search parameters */
306 /* Allowed qpel MV range to stay within the picture + emulated edge pixels */
309 /* Fullpel MV range for motion search */
313 unsigned int i_neighbour;
316 int8_t *type; /* mb type */
317 int8_t *qp; /* mb qp */
318 int16_t *cbp; /* mb cbp: 0x0?: luma, 0x?0: chroma, 0x100: luma dc, 0x0200 and 0x0400: chroma dc (all set for PCM)*/
319 int8_t (*intra4x4_pred_mode)[7]; /* intra4x4 pred mode. for non I4x4 set to I_PRED_4x4_DC(2) */
320 uint8_t (*non_zero_count)[16+4+4]; /* nzc. for I_PCM set to 16 */
321 int8_t *chroma_pred_mode; /* chroma_pred_mode. cabac only. for non intra I_PRED_CHROMA_DC(0) */
322 int16_t (*mv[2])[2]; /* mb mv. set to 0 for intra mb */
323 int16_t (*mvd[2])[2]; /* mb mv difference with predict. set to 0 if intra. cabac only */
324 int8_t *ref[2]; /* mb ref. set to -1 if non used (intra or Lx only) */
325 int16_t (*mvr[2][16])[2]; /* 16x16 mv for each possible ref */
326 int8_t *skipbp; /* block pattern for SKIP or DIRECT (sub)mbs. B-frames + cabac only */
331 int i_sub_partition[4];
336 int i_intra16x16_pred_mode;
337 int i_chroma_pred_mode;
341 /* pointer over mb of the frame to be compressed */
344 /* pointer over mb of the frame to be reconstrucated */
347 /* pointer over mb of the references */
348 uint8_t *p_fref[2][16][4+2]; /* last: lN, lH, lV, lHV, cU, cV */
357 /* real intra4x4_pred_mode if I_4X4, I_PRED_4x4_DC if mb available, -1 if not */
358 int intra4x4_pred_mode[X264_SCAN8_SIZE];
360 /* i_non_zero_count if availble else 0x80 */
361 int non_zero_count[X264_SCAN8_SIZE];
363 /* -1 if unused, -2 if unavaible */
364 int8_t ref[2][X264_SCAN8_SIZE];
366 /* 0 if non avaible */
367 int16_t mv[2][X264_SCAN8_SIZE][2];
368 int16_t mvd[2][X264_SCAN8_SIZE][2];
370 /* 1 if SKIP or DIRECT. set only for B-frames + CABAC */
371 int8_t skip[X264_SCAN8_SIZE];
373 int16_t direct_mv[2][X264_SCAN8_SIZE][2];
374 int8_t direct_ref[2][X264_SCAN8_SIZE];
378 int i_last_qp; /* last qp */
379 int i_last_dqp; /* last delta qp */
380 int b_variable_qp; /* whether qp is allowed to vary per macroblock */
382 /* B_direct and weighted prediction */
383 int dist_scale_factor[16][16];
384 int bipred_weight[16][16];
385 /* maps fref1[0]'s ref indices into the current list0 */
386 int map_col_to_list0_buf[2]; // for negative indices
387 int map_col_to_list0[16];
390 /* rate control encoding only */
391 x264_ratecontrol_t *rc;
393 int i_last_inter_size;
394 int i_last_intra_size;
400 /* Current frame stats */
403 /* Headers bits (MV+Ref+MB Block Type */
405 /* Texture bits (Intra/Predicted) */
414 /* Estimated (SATD) cost as Intra/Predicted frame */
415 /* XXX: both omit the cost of MBs coded as P_SKIP */
420 /* Cummulated stats */
423 int i_slice_count[5];
424 int64_t i_slice_size[5];
427 int64_t i_sqe_global[5];
428 float f_psnr_average[5];
429 float f_psnr_mean_y[5];
430 float f_psnr_mean_u[5];
431 float f_psnr_mean_v[5];
433 int64_t i_mb_count[5][18];
437 /* CPU functions dependants */
438 x264_predict_t predict_16x16[4+3];
439 x264_predict_t predict_8x8[4+3];
440 x264_predict_t predict_4x4[9+3];
442 x264_pixel_function_t pixf;
443 x264_mc_functions_t mc;
444 x264_dct_function_t dctf;
445 x264_csp_function_t csp;
447 /* vlc table for decoding purpose only */
448 x264_vlc_table_t *x264_coeff_token_lookup[5];
449 x264_vlc_table_t *x264_level_prefix_lookup;
450 x264_vlc_table_t *x264_total_zeros_lookup[15];
451 x264_vlc_table_t *x264_total_zeros_dc_lookup[3];
452 x264_vlc_table_t *x264_run_before_lookup[7];