1 /*****************************************************************************
2 * frame.h: h264 encoder library
3 *****************************************************************************
4 * Copyright (C) 2003-2008 x264 project
6 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
7 * Loren Merritt <lorenm@u.washington.edu>
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., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA.
22 *****************************************************************************/
27 /* number of pixels past the edge of the frame, for motion estimation/compensation */
31 typedef struct x264_frame
40 int i_frame; /* Presentation frame number */
41 int i_dts; /* Coded frame number */
42 int i_frame_num; /* 7.4.3 frame_num */
45 uint8_t b_last_minigop_bframe; /* this frame is the last b in a sequence of bframes */
46 uint8_t i_bframes; /* number of bframes following this nonb in coded order */
47 float f_qp_avg_rc; /* QPs as decided by ratecontrol */
48 float f_qp_avg_aq; /* QPs as decided by AQ in addition to ratecontrol */
59 uint8_t *filtered[4]; /* plane[0], H, V, HV */
60 uint8_t *lowres[4]; /* half-size copy of input frame: Orig, H, V, HV */
63 /* for unrestricted mv we allocate more data than needed
64 * allocated data are stored in buffer */
66 uint8_t *buffer_lowres[4];
68 x264_weight_t weight[16][3]; /* [ref_index][plane] */
69 uint8_t *weighted[16]; /* plane[0] weighted of the reference frames */
71 struct x264_frame *orig;
76 int16_t (*lowres_mvs[2][X264_BFRAME_MAX+1])[2];
77 uint16_t (*lowres_costs[X264_BFRAME_MAX+2][X264_BFRAME_MAX+2]);
78 /* Actually a width-2 bitfield with 4 values per uint8_t. */
79 uint8_t (*lowres_inter_types[X264_BFRAME_MAX+2][X264_BFRAME_MAX+2]);
80 int *lowres_mv_costs[2][X264_BFRAME_MAX+1];
84 int inv_ref_poc[16]; // inverse values (list0 only) to avoid divisions in MB encoding
86 /* for adaptive B-frame decision.
87 * contains the SATD cost of the lowres frame encoded in various modes
88 * FIXME: how big an array do we need? */
89 int i_cost_est[X264_BFRAME_MAX+2][X264_BFRAME_MAX+2];
90 int i_cost_est_aq[X264_BFRAME_MAX+2][X264_BFRAME_MAX+2];
91 int i_satd; // the i_cost_est of the selected frametype
92 int i_intra_mbs[X264_BFRAME_MAX+2];
93 int *i_row_satds[X264_BFRAME_MAX+2][X264_BFRAME_MAX+2];
98 float *f_qp_offset_aq;
99 int b_intra_calculated;
100 uint16_t *i_intra_cost;
101 uint16_t *i_propagate_cost;
102 uint16_t *i_inv_qscale_factor;
103 int b_scenecut; /* Set to zero if the frame cannot possibly be part of a real scenecut. */
104 float f_weighted_cost_delta[X264_BFRAME_MAX+2];
105 uint32_t i_pixel_sum;
106 uint64_t i_pixel_ssd;
109 uint8_t i_planned_type[X264_LOOKAHEAD_MAX+1];
110 int i_planned_satd[X264_LOOKAHEAD_MAX+1];
113 int i_lines_completed; /* in pixels */
114 int i_lines_weighted; /* FIXME: this only supports weighting of one reference frame */
115 int i_reference_count; /* number of threads using this frame (not necessarily the number of pointers) */
116 x264_pthread_mutex_t mutex;
117 x264_pthread_cond_t cv;
121 /* synchronized frame list */
127 x264_pthread_mutex_t mutex;
128 x264_pthread_cond_t cv_fill; /* event signaling that the list became fuller */
129 x264_pthread_cond_t cv_empty; /* event signaling that the list became emptier */
130 } x264_synch_frame_list_t;
132 typedef void (*x264_deblock_inter_t)( uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0 );
133 typedef void (*x264_deblock_intra_t)( uint8_t *pix, int stride, int alpha, int beta );
136 x264_deblock_inter_t deblock_v_luma;
137 x264_deblock_inter_t deblock_h_luma;
138 x264_deblock_inter_t deblock_v_chroma;
139 x264_deblock_inter_t deblock_h_chroma;
140 x264_deblock_intra_t deblock_v_luma_intra;
141 x264_deblock_intra_t deblock_h_luma_intra;
142 x264_deblock_intra_t deblock_v_chroma_intra;
143 x264_deblock_intra_t deblock_h_chroma_intra;
144 } x264_deblock_function_t;
146 x264_frame_t *x264_frame_new( x264_t *h, int b_fdec );
147 void x264_frame_delete( x264_frame_t *frame );
149 int x264_frame_copy_picture( x264_t *h, x264_frame_t *dst, x264_picture_t *src );
151 void x264_frame_expand_border( x264_t *h, x264_frame_t *frame, int mb_y, int b_end );
152 void x264_frame_expand_border_filtered( x264_t *h, x264_frame_t *frame, int mb_y, int b_end );
153 void x264_frame_expand_border_lowres( x264_frame_t *frame );
154 void x264_frame_expand_border_mod16( x264_t *h, x264_frame_t *frame );
156 void x264_frame_deblock( x264_t *h );
157 void x264_frame_deblock_row( x264_t *h, int mb_y );
159 void x264_frame_filter( x264_t *h, x264_frame_t *frame, int mb_y, int b_end );
160 void x264_frame_init_lowres( x264_t *h, x264_frame_t *frame );
162 void x264_deblock_init( int cpu, x264_deblock_function_t *pf );
164 void x264_frame_cond_broadcast( x264_frame_t *frame, int i_lines_completed );
165 void x264_frame_cond_wait( x264_frame_t *frame, int i_lines_completed );
167 void x264_frame_push( x264_frame_t **list, x264_frame_t *frame );
168 x264_frame_t *x264_frame_pop( x264_frame_t **list );
169 void x264_frame_unshift( x264_frame_t **list, x264_frame_t *frame );
170 x264_frame_t *x264_frame_shift( x264_frame_t **list );
171 void x264_frame_push_unused( x264_t *h, x264_frame_t *frame );
172 void x264_frame_push_blank_unused( x264_t *h, x264_frame_t *frame );
173 x264_frame_t *x264_frame_pop_blank_unused( x264_t *h );
174 void x264_weight_scale_plane( x264_t *h, uint8_t *dst, int i_dst_stride, uint8_t *src, int i_src_stride,
175 int i_width, int i_height, x264_weight_t *w );
176 x264_frame_t *x264_frame_pop_unused( x264_t *h, int b_fdec );
177 void x264_frame_sort( x264_frame_t **list, int b_dts );
178 void x264_frame_delete_list( x264_frame_t **list );
180 int x264_synch_frame_list_init( x264_synch_frame_list_t *slist, int nelem );
181 void x264_synch_frame_list_delete( x264_synch_frame_list_t *slist );
182 void x264_synch_frame_list_push( x264_synch_frame_list_t *slist, x264_frame_t *frame );
184 #define x264_frame_sort_dts(list) x264_frame_sort(list, 1)
185 #define x264_frame_sort_pts(list) x264_frame_sort(list, 0)