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
36 #define X264_VERSION "" // no configure script for msvc
50 /****************************************************************************
52 ****************************************************************************/
53 #define X264_MIN(a,b) ( (a)<(b) ? (a) : (b) )
54 #define X264_MAX(a,b) ( (a)>(b) ? (a) : (b) )
55 #define X264_ABS(a) ( (a)< 0 ? -(a) : (a) )
56 #define X264_MIN3(a,b,c) X264_MIN((a),X264_MIN((b),(c)))
57 #define X264_MIN4(a,b,c,d) X264_MIN((a),X264_MIN3((b),(c),(d)))
59 /****************************************************************************
61 ****************************************************************************/
62 /* x264_malloc : will do or emulate a memalign
63 * XXX you HAVE TO use x264_free for buffer allocated
66 void *x264_malloc( int );
67 void *x264_realloc( void *p, int i_size );
68 void x264_free( void * );
70 /* mdate: return the current date in microsecond */
71 int64_t x264_mdate( void );
74 void x264_log( x264_t *h, int i_level, const char *psz_fmt, ... );
76 static inline int x264_clip3( int v, int i_min, int i_max )
78 return ( (v < i_min) ? i_min : (v > i_max) ? i_max : v );
81 static inline float x264_clip3f( float v, float f_min, float f_max )
83 return ( (v < f_min) ? f_min : (v > f_max) ? f_max : v );
86 static inline int x264_median( int a, int b, int c )
92 max = b; /* no need to do 'b > max' (more consuming than always doing affectation) */
99 return a + b + c - min - max;
103 /****************************************************************************
105 ****************************************************************************/
115 static const char slice_type_to_char[] = { 'P', 'B', 'I', 'S', 'S' };
132 int i_idr_pic_id; /* -1 if nal_type != 5 */
135 int i_delta_poc_bottom;
138 int i_redundant_pic_cnt;
140 int b_direct_spatial_mv_pred;
142 int b_num_ref_idx_override;
143 int i_num_ref_idx_l0_active;
144 int i_num_ref_idx_l1_active;
146 int b_ref_pic_list_reordering_l0;
147 int b_ref_pic_list_reordering_l1;
151 } ref_pic_list_order[2][16];
153 int i_cabac_init_idc;
159 /* deblocking filter */
160 int i_disable_deblocking_filter_idc;
161 int i_alpha_c0_offset;
164 } x264_slice_header_t;
168 #define X264_SCAN8_SIZE (6*8)
169 #define X264_SCAN8_0 (4+1*8)
171 static const int x264_scan8[16+2*4] =
174 4+1*8, 5+1*8, 4+2*8, 5+2*8,
175 6+1*8, 7+1*8, 6+2*8, 7+2*8,
176 4+3*8, 5+3*8, 4+4*8, 5+4*8,
177 6+3*8, 7+3*8, 6+4*8, 7+4*8,
197 #define X264_BFRAME_MAX 16
199 typedef struct x264_ratecontrol_t x264_ratecontrol_t;
200 typedef struct x264_vlc_table_t x264_vlc_table_t;
204 /* encoder parameters */
207 /* bitstream output */
211 x264_nal_t nal[5]; /* for now 5 is enough */
212 int i_bitstream; /* size of p_bitstream */
213 uint8_t *p_bitstream; /* will hold data for all nal */
217 /* frame number/poc */
220 int i_frame_offset; /* decoding only */
221 int i_frame_num; /* decoding only */
222 int i_poc_msb; /* decoding only */
223 int i_poc_lsb; /* decoding only */
224 int i_poc; /* decoding only */
226 /* We use only one SPS and one PPS */
227 x264_sps_t sps_array[32];
229 x264_pps_t pps_array[256];
234 x264_slice_header_t sh;
241 /* Frames to be encoded (whose types have been decided) */
242 x264_frame_t *current[X264_BFRAME_MAX+3];
243 /* Temporary buffer (frames types not yet decided) */
244 x264_frame_t *next[X264_BFRAME_MAX+3];
246 x264_frame_t *unused[X264_BFRAME_MAX+3];
247 /* For adaptive B decision */
248 x264_frame_t *last_nonb;
250 /* frames used for reference +1 for decoding + sentinels */
251 x264_frame_t *reference[16+2+1+2];
253 int i_last_idr; /* Frame number of the last IDR */
255 int i_input; /* Number of input frames already accepted */
257 int i_max_dpb; /* Number of frames allocated in the decoded picture buffer */
260 int i_delay; /* Number of frames buffered for B reordering */
263 /* current frame being encoded */
266 /* frame being reconstructed */
269 /* references lists */
271 x264_frame_t *fref0[16+3]; /* ref list 0 */
273 x264_frame_t *fref1[16+3]; /* ref list 1 */
274 int b_ref_reorder[2];
278 /* Current MB DCT coeffs */
281 DECLARE_ALIGNED( int, luma16x16_dc[16], 16 );
282 DECLARE_ALIGNED( int, chroma_dc[2][4], 16 );
285 DECLARE_ALIGNED( int, residual_ac[15], 16 );
286 DECLARE_ALIGNED( int, luma4x4[16], 16 );
290 /* MB table and cache for current frame/mb */
293 int i_mb_count; /* number of mbs in a frame */
307 /* Search parameters */
311 /* Allowed qpel MV range to stay within the picture + emulated edge pixels */
314 /* Fullpel MV range for motion search */
318 unsigned int i_neighbour;
321 int8_t *type; /* mb type */
322 int8_t *qp; /* mb qp */
323 int16_t *cbp; /* mb cbp: 0x0?: luma, 0x?0: chroma, 0x100: luma dc, 0x0200 and 0x0400: chroma dc (all set for PCM)*/
324 int8_t (*intra4x4_pred_mode)[7]; /* intra4x4 pred mode. for non I4x4 set to I_PRED_4x4_DC(2) */
325 uint8_t (*non_zero_count)[16+4+4]; /* nzc. for I_PCM set to 16 */
326 int8_t *chroma_pred_mode; /* chroma_pred_mode. cabac only. for non intra I_PRED_CHROMA_DC(0) */
327 int16_t (*mv[2])[2]; /* mb mv. set to 0 for intra mb */
328 int16_t (*mvd[2])[2]; /* mb mv difference with predict. set to 0 if intra. cabac only */
329 int8_t *ref[2]; /* mb ref. set to -1 if non used (intra or Lx only) */
330 int16_t (*mvr[2][16])[2]; /* 16x16 mv for each possible ref */
331 int8_t *skipbp; /* block pattern for SKIP or DIRECT (sub)mbs. B-frames + cabac only */
336 int i_sub_partition[4];
341 int i_intra16x16_pred_mode;
342 int i_chroma_pred_mode;
346 /* pointer over mb of the frame to be compressed */
349 /* pointer over mb of the frame to be reconstrucated */
352 /* pointer over mb of the references */
353 uint8_t *p_fref[2][16][4+2]; /* last: lN, lH, lV, lHV, cU, cV */
362 /* real intra4x4_pred_mode if I_4X4, I_PRED_4x4_DC if mb available, -1 if not */
363 int intra4x4_pred_mode[X264_SCAN8_SIZE];
365 /* i_non_zero_count if availble else 0x80 */
366 int non_zero_count[X264_SCAN8_SIZE];
368 /* -1 if unused, -2 if unavaible */
369 int8_t ref[2][X264_SCAN8_SIZE];
371 /* 0 if non avaible */
372 int16_t mv[2][X264_SCAN8_SIZE][2];
373 int16_t mvd[2][X264_SCAN8_SIZE][2];
375 /* 1 if SKIP or DIRECT. set only for B-frames + CABAC */
376 int8_t skip[X264_SCAN8_SIZE];
378 int16_t direct_mv[2][X264_SCAN8_SIZE][2];
379 int8_t direct_ref[2][X264_SCAN8_SIZE];
383 int i_last_qp; /* last qp */
384 int i_last_dqp; /* last delta qp */
385 int b_variable_qp; /* whether qp is allowed to vary per macroblock */
387 /* B_direct and weighted prediction */
388 int dist_scale_factor[16][16];
389 int bipred_weight[16][16];
390 /* maps fref1[0]'s ref indices into the current list0 */
391 int map_col_to_list0_buf[2]; // for negative indices
392 int map_col_to_list0[16];
395 /* rate control encoding only */
396 x264_ratecontrol_t *rc;
398 int i_last_inter_size;
399 int i_last_intra_size;
405 /* Current frame stats */
408 /* Headers bits (MV+Ref+MB Block Type */
410 /* Texture bits (Intra/Predicted) */
419 /* Estimated (SATD) cost as Intra/Predicted frame */
420 /* XXX: both omit the cost of MBs coded as P_SKIP */
425 /* Cummulated stats */
428 int i_slice_count[5];
429 int64_t i_slice_size[5];
432 int64_t i_sqe_global[5];
433 float f_psnr_average[5];
434 float f_psnr_mean_y[5];
435 float f_psnr_mean_u[5];
436 float f_psnr_mean_v[5];
438 int64_t i_mb_count[5][18];
442 /* CPU functions dependants */
443 x264_predict_t predict_16x16[4+3];
444 x264_predict_t predict_8x8[4+3];
445 x264_predict_t predict_4x4[9+3];
447 x264_pixel_function_t pixf;
448 x264_mc_functions_t mc;
449 x264_dct_function_t dctf;
450 x264_csp_function_t csp;
452 /* vlc table for decoding purpose only */
453 x264_vlc_table_t *x264_coeff_token_lookup[5];
454 x264_vlc_table_t *x264_level_prefix_lookup;
455 x264_vlc_table_t *x264_total_zeros_lookup[15];
456 x264_vlc_table_t *x264_total_zeros_dc_lookup[3];
457 x264_vlc_table_t *x264_run_before_lookup[7];