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 *****************************************************************************/
45 /****************************************************************************
47 ****************************************************************************/
48 #define X264_MIN(a,b) ( (a)<(b) ? (a) : (b) )
49 #define X264_MAX(a,b) ( (a)>(b) ? (a) : (b) )
50 #define X264_ABS(a) ( (a)< 0 ? -(a) : (a) )
52 /****************************************************************************
54 ****************************************************************************/
55 /* x264_malloc : will do or emulate a memalign
56 * XXX you HAVE TO use x264_free for buffer allocated
59 void *x264_malloc( int );
60 void *x264_realloc( void *p, int i_size );
61 void x264_free( void * );
63 /* mdate: return the current date in microsecond */
64 int64_t x264_mdate( void );
67 void x264_log( x264_t *h, int i_level, const char *psz_fmt, ... );
69 static inline int x264_clip3( int v, int i_min, int i_max )
71 return ( (v < i_min) ? i_min : (v > i_max) ? i_max : v );
74 static inline float x264_clip3f( float v, float f_min, float f_max )
76 return ( (v < f_min) ? f_min : (v > f_max) ? f_max : v );
79 /****************************************************************************
81 ****************************************************************************/
106 int i_idr_pic_id; /* -1 if nal_type != 5 */
109 int i_delta_poc_bottom;
112 int i_redundant_pic_cnt;
114 int b_direct_spatial_mv_pred;
116 int b_num_ref_idx_override;
117 int i_num_ref_idx_l0_active;
118 int i_num_ref_idx_l1_active;
120 int i_cabac_init_idc;
126 /* deblocking filter */
127 int i_disable_deblocking_filter_idc;
128 int i_alpha_c0_offset;
131 } x264_slice_header_t;
135 #define X264_SCAN8_SIZE (6*8)
136 #define X264_SCAN8_0 (4+1*8)
138 static const int x264_scan8[16+2*4] =
141 4+1*8, 5+1*8, 4+2*8, 5+2*8,
142 6+1*8, 7+1*8, 6+2*8, 7+2*8,
143 4+3*8, 5+3*8, 4+4*8, 5+4*8,
144 6+3*8, 7+3*8, 6+4*8, 7+4*8,
164 #define X264_BFRAME_MAX 16
166 typedef struct x264_ratecontrol_t x264_ratecontrol_t;
167 typedef struct x264_vlc_table_t x264_vlc_table_t;
171 /* encoder parameters */
174 /* bitstream output */
178 x264_nal_t nal[3]; /* for now 3 is enought */
179 int i_bitstream; /* size of p_bitstream */
180 uint8_t *p_bitstream; /* will hold data for all nal */
184 /* frame number/poc */
188 int i_frame_offset; /* decoding only */
189 int i_frame_num; /* decoding only */
190 int i_poc_msb; /* decoding only */
191 int i_poc_lsb; /* decoding only */
193 /* We use only one SPS and one PPS */
194 x264_sps_t sps_array[32];
196 x264_pps_t pps_array[256];
201 x264_slice_header_t sh;
208 /* Frames to be encoded */
209 x264_frame_t *current[X264_BFRAME_MAX+1];
210 /* Temporary buffer (eg B frames pending until we reach the I/P) */
211 x264_frame_t *next[X264_BFRAME_MAX+1];
213 x264_frame_t *unused[X264_BFRAME_MAX+1];
215 /* frames used for reference +1 for decoding */
216 x264_frame_t *reference[16+1];
218 int i_last_idr; /* How many I non IDR frames from last IDR */
219 int i_last_i; /* How many P/B frames from last I */
221 int i_input; /* Number of input frames already accepted */
224 /* current frame being encoded */
227 /* frame being reconstructed */
230 /* references lists */
232 x264_frame_t *fref0[16]; /* ref list 0 */
234 x264_frame_t *fref1[16]; /* ref list 1 */
238 /* Current MB DCT coeffs */
241 DECLARE_ALIGNED( int, luma16x16_dc[16], 16 );
242 DECLARE_ALIGNED( int, chroma_dc[2][4], 16 );
245 DECLARE_ALIGNED( int, residual_ac[15], 16 );
246 DECLARE_ALIGNED( int, luma4x4[16], 16 );
250 /* MB table and cache for current frame/mb */
253 int i_mb_count; /* number of mbs in a frame */
263 unsigned int i_neighbour;
266 int8_t *type; /* mb type */
267 int8_t *qp; /* mb qp */
268 int16_t *cbp; /* mb cbp: 0x0?: luma, 0x?0: chroma, 0x100: luma dc, 0x0200 and 0x0400: chroma dc (all set for PCM)*/
269 int8_t (*intra4x4_pred_mode)[7]; /* intra4x4 pred mode. for non I4x4 set to I_PRED_4x4_DC(2) */
270 uint8_t (*non_zero_count)[16+4+4]; /* nzc. for I_PCM set to 16 */
271 int8_t *chroma_pred_mode; /* chroma_pred_mode. cabac only. for non intra I_PRED_CHROMA_DC(0) */
272 int16_t (*mv[2])[2]; /* mb mv. set to 0 for intra mb */
273 int16_t (*mvd[2])[2]; /* mb mv difference with predict. set to 0 if intra. cabac only */
274 int8_t *ref[2]; /* mb ref. set to -1 if non used (intra or Lx only) */
275 int16_t (*mvr[2][16])[2]; /* 16x16 mv for each possible ref */
276 int8_t *skipbp; /* block pattern for SKIP or DIRECT (sub)mbs. B-frames + cabac only */
278 /* for B_SKIP and B_DIRECT motion prediction */
281 int16_t (*mv)[2]; /* keep only L0 */
288 int i_sub_partition[4];
293 int i_intra16x16_pred_mode;
294 int i_chroma_pred_mode;
298 /* pointer over mb of the frame to be compressed */
301 /* pointer over mb of the frame to be reconstrucated */
304 /* pointer over mb of the references */
305 uint8_t *p_fref[2][16][3];
314 /* real intra4x4_pred_mode if I_4X4, I_PRED_4x4_DC if mb available, -1 if not */
315 int intra4x4_pred_mode[X264_SCAN8_SIZE];
317 /* i_non_zero_count if availble else 0x80 */
318 int non_zero_count[X264_SCAN8_SIZE];
320 /* -1 if unused, -2 if unavaible */
321 int8_t ref[2][X264_SCAN8_SIZE];
323 /* 0 if non avaible */
324 int16_t mv[2][X264_SCAN8_SIZE][2];
325 int16_t mvd[2][X264_SCAN8_SIZE][2];
327 /* 1 if SKIP or DIRECT. set only for B-frames + CABAC */
328 int8_t skip[X264_SCAN8_SIZE];
330 int16_t direct_mv[2][X264_SCAN8_SIZE][2];
331 int8_t direct_ref[2][X264_SCAN8_SIZE];
335 int i_last_qp; /* last qp */
336 int i_last_dqp; /* last delta qp */
340 /* rate control encoding only */
341 x264_ratecontrol_t *rc;
343 int i_last_inter_size;
344 int i_last_intra_size;
350 /* Current frame stats */
353 /* Headers bits (MV+Ref+MB Block Type */
355 /* Texture bits (Intra/Predicted) */
364 /* Estimated (SATD) cost as Intra/Predicted frame */
365 /* XXX: both omit the cost of MBs coded as P_SKIP */
370 /* Cummulated stats */
373 int i_slice_count[5];
374 int64_t i_slice_size[5];
377 int64_t i_sqe_global[5];
378 float f_psnr_average[5];
379 float f_psnr_mean_y[5];
380 float f_psnr_mean_u[5];
381 float f_psnr_mean_v[5];
383 int64_t i_mb_count[5][18];
387 /* CPU functions dependants */
388 x264_predict_t predict_16x16[4+3];
389 x264_predict_t predict_8x8[4+3];
390 x264_predict_t predict_4x4[9+3];
392 x264_pixel_function_t pixf;
393 x264_mc_function_t mc[2];
394 x264_dct_function_t dctf;
395 x264_csp_function_t csp;
397 /* vlc table for decoding purpose only */
398 x264_vlc_table_t *x264_coeff_token_lookup[5];
399 x264_vlc_table_t *x264_level_prefix_lookup;
400 x264_vlc_table_t *x264_total_zeros_lookup[15];
401 x264_vlc_table_t *x264_total_zeros_dc_lookup[3];
402 x264_vlc_table_t *x264_run_before_lookup[7];