| /***************************************************************************** |
| * common.h: h264 encoder |
| ***************************************************************************** |
| * Copyright (C) 2003-2008 x264 project |
| * |
| * Authors: Laurent Aimar <fenrir@via.ecp.fr> |
| * Loren Merritt <lorenm@u.washington.edu> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA. |
| *****************************************************************************/ |
| |
| #ifndef X264_COMMON_H |
| #define X264_COMMON_H |
| |
| /**************************************************************************** |
| * Macros |
| ****************************************************************************/ |
| #define X264_MIN(a,b) ( (a)<(b) ? (a) : (b) ) |
| #define X264_MAX(a,b) ( (a)>(b) ? (a) : (b) ) |
| #define X264_MIN3(a,b,c) X264_MIN((a),X264_MIN((b),(c))) |
| #define X264_MAX3(a,b,c) X264_MAX((a),X264_MAX((b),(c))) |
| #define X264_MIN4(a,b,c,d) X264_MIN((a),X264_MIN3((b),(c),(d))) |
| #define X264_MAX4(a,b,c,d) X264_MAX((a),X264_MAX3((b),(c),(d))) |
| #define XCHG(type,a,b) do{ type t = a; a = b; b = t; } while(0) |
| #define FIX8(f) ((int)(f*(1<<8)+.5)) |
| |
| #define CHECKED_MALLOC( var, size )\ |
| {\ |
| var = x264_malloc( size );\ |
| if( !var )\ |
| {\ |
| x264_log( h, X264_LOG_ERROR, "malloc failed\n" );\ |
| goto fail;\ |
| }\ |
| } |
| |
| #define X264_BFRAME_MAX 16 |
| #define X264_THREAD_MAX 128 |
| #define X264_SLICE_MAX 4 |
| #define X264_NAL_MAX (4 + X264_SLICE_MAX) |
| #define X264_PCM_COST (386*8) |
| |
| // number of pixels (per thread) in progress at any given time. |
| // 16 for the macroblock in progress + 3 for deblocking + 3 for motion compensation filter + 2 for extra safety |
| #define X264_THREAD_HEIGHT 24 |
| |
| /**************************************************************************** |
| * Includes |
| ****************************************************************************/ |
| #include "osdep.h" |
| #include <stdarg.h> |
| #include <stddef.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <assert.h> |
| #include "x264.h" |
| #include "bs.h" |
| #include "set.h" |
| #include "predict.h" |
| #include "pixel.h" |
| #include "mc.h" |
| #include "frame.h" |
| #include "dct.h" |
| #include "cabac.h" |
| #include "quant.h" |
| |
| /**************************************************************************** |
| * Generals functions |
| ****************************************************************************/ |
| /* x264_malloc : will do or emulate a memalign |
| * you have to use x264_free for buffers allocated with x264_malloc */ |
| void *x264_malloc( int ); |
| void *x264_realloc( void *p, int i_size ); |
| void x264_free( void * ); |
| |
| /* x264_slurp_file: malloc space for the whole file and read it */ |
| char *x264_slurp_file( const char *filename ); |
| |
| /* mdate: return the current date in microsecond */ |
| int64_t x264_mdate( void ); |
| |
| /* x264_param2string: return a (malloced) string containing most of |
| * the encoding options */ |
| char *x264_param2string( x264_param_t *p, int b_res ); |
| |
| /* log */ |
| void x264_log( x264_t *h, int i_level, const char *psz_fmt, ... ); |
| |
| void x264_reduce_fraction( int *n, int *d ); |
| |
| static inline uint8_t x264_clip_uint8( int x ) |
| { |
| return x&(~255) ? (-x)>>31 : x; |
| } |
| |
| static inline int x264_clip3( int v, int i_min, int i_max ) |
| { |
| return ( (v < i_min) ? i_min : (v > i_max) ? i_max : v ); |
| } |
| |
| static inline double x264_clip3f( double v, double f_min, double f_max ) |
| { |
| return ( (v < f_min) ? f_min : (v > f_max) ? f_max : v ); |
| } |
| |
| static inline int x264_median( int a, int b, int c ) |
| { |
| int t = (a-b)&((a-b)>>31); |
| a -= t; |
| b += t; |
| b -= (b-c)&((b-c)>>31); |
| b += (a-b)&((a-b)>>31); |
| return b; |
| } |
| |
| static inline void x264_median_mv( int16_t *dst, int16_t *a, int16_t *b, int16_t *c ) |
| { |
| dst[0] = x264_median( a[0], b[0], c[0] ); |
| dst[1] = x264_median( a[1], b[1], c[1] ); |
| } |
| |
| static inline int x264_predictor_difference( int16_t (*mvc)[2], intptr_t i_mvc ) |
| { |
| int sum = 0, i; |
| for( i = 0; i < i_mvc-1; i++ ) |
| { |
| sum += abs( mvc[i][0] - mvc[i+1][0] ) |
| + abs( mvc[i][1] - mvc[i+1][1] ); |
| } |
| return sum; |
| } |
| |
| /**************************************************************************** |
| * |
| ****************************************************************************/ |
| enum slice_type_e |
| { |
| SLICE_TYPE_P = 0, |
| SLICE_TYPE_B = 1, |
| SLICE_TYPE_I = 2, |
| SLICE_TYPE_SP = 3, |
| SLICE_TYPE_SI = 4 |
| }; |
| |
| static const char slice_type_to_char[] = { 'P', 'B', 'I', 'S', 'S' }; |
| |
| typedef struct |
| { |
| x264_sps_t *sps; |
| x264_pps_t *pps; |
| |
| int i_type; |
| int i_first_mb; |
| int i_last_mb; |
| |
| int i_pps_id; |
| |
| int i_frame_num; |
| |
| int b_mbaff; |
| int b_field_pic; |
| int b_bottom_field; |
| |
| int i_idr_pic_id; /* -1 if nal_type != 5 */ |
| |
| int i_poc_lsb; |
| int i_delta_poc_bottom; |
| |
| int i_delta_poc[2]; |
| int i_redundant_pic_cnt; |
| |
| int b_direct_spatial_mv_pred; |
| |
| int b_num_ref_idx_override; |
| int i_num_ref_idx_l0_active; |
| int i_num_ref_idx_l1_active; |
| |
| int b_ref_pic_list_reordering_l0; |
| int b_ref_pic_list_reordering_l1; |
| struct { |
| int idc; |
| int arg; |
| } ref_pic_list_order[2][16]; |
| |
| int i_cabac_init_idc; |
| |
| int i_qp; |
| int i_qp_delta; |
| int b_sp_for_swidth; |
| int i_qs_delta; |
| |
| /* deblocking filter */ |
| int i_disable_deblocking_filter_idc; |
| int i_alpha_c0_offset; |
| int i_beta_offset; |
| |
| } x264_slice_header_t; |
| |
| /* From ffmpeg |
| */ |
| #define X264_SCAN8_SIZE (6*8) |
| #define X264_SCAN8_0 (4+1*8) |
| |
| static const int x264_scan8[16+2*4+3] = |
| { |
| /* Luma */ |
| 4+1*8, 5+1*8, 4+2*8, 5+2*8, |
| 6+1*8, 7+1*8, 6+2*8, 7+2*8, |
| 4+3*8, 5+3*8, 4+4*8, 5+4*8, |
| 6+3*8, 7+3*8, 6+4*8, 7+4*8, |
| |
| /* Cb */ |
| 1+1*8, 2+1*8, |
| 1+2*8, 2+2*8, |
| |
| /* Cr */ |
| 1+4*8, 2+4*8, |
| 1+5*8, 2+5*8, |
| |
| /* Luma DC */ |
| 4+5*8, |
| |
| /* Chroma DC */ |
| 5+5*8, 6+5*8 |
| }; |
| /* |
| 0 1 2 3 4 5 6 7 |
| 0 |
| 1 B B L L L L |
| 2 B B L L L L |
| 3 L L L L |
| 4 R R L L L L |
| 5 R R DyDuDv |
| */ |
| |
| typedef struct x264_ratecontrol_t x264_ratecontrol_t; |
| |
| struct x264_t |
| { |
| /* encoder parameters */ |
| x264_param_t param; |
| |
| x264_t *thread[X264_THREAD_MAX]; |
| x264_pthread_t thread_handle; |
| int b_thread_active; |
| int i_thread_phase; /* which thread to use for the next frame */ |
| |
| /* bitstream output */ |
| struct |
| { |
| int i_nal; |
| x264_nal_t nal[X264_NAL_MAX]; |
| int i_bitstream; /* size of p_bitstream */ |
| uint8_t *p_bitstream; /* will hold data for all nal */ |
| bs_t bs; |
| int i_frame_size; |
| } out; |
| |
| /**** thread synchronization starts here ****/ |
| |
| /* frame number/poc */ |
| int i_frame; |
| |
| int i_frame_offset; /* decoding only */ |
| int i_frame_num; /* decoding only */ |
| int i_poc_msb; /* decoding only */ |
| int i_poc_lsb; /* decoding only */ |
| int i_poc; /* decoding only */ |
| |
| int i_thread_num; /* threads only */ |
| int i_nal_type; /* threads only */ |
| int i_nal_ref_idc; /* threads only */ |
| |
| /* We use only one SPS and one PPS */ |
| x264_sps_t sps_array[1]; |
| x264_sps_t *sps; |
| x264_pps_t pps_array[1]; |
| x264_pps_t *pps; |
| int i_idr_pic_id; |
| |
| /* quantization matrix for decoding, [cqm][qp%6][coef_y][coef_x] */ |
| int (*dequant4_mf[4])[4][4]; /* [4][6][4][4] */ |
| int (*dequant8_mf[2])[8][8]; /* [2][6][8][8] */ |
| /* quantization matrix for trellis, [cqm][qp][coef] */ |
| int (*unquant4_mf[4])[16]; /* [4][52][16] */ |
| int (*unquant8_mf[2])[64]; /* [2][52][64] */ |
| /* quantization matrix for deadzone */ |
| uint16_t (*quant4_mf[4])[16]; /* [4][52][16] */ |
| uint16_t (*quant8_mf[2])[64]; /* [2][52][64] */ |
| uint16_t (*quant4_bias[4])[16]; /* [4][52][16] */ |
| uint16_t (*quant8_bias[2])[64]; /* [2][52][64] */ |
| |
| const uint8_t *chroma_qp_table; /* includes both the nonlinear luma->chroma mapping and chroma_qp_offset */ |
| |
| DECLARE_ALIGNED_16( uint32_t nr_residual_sum[2][64] ); |
| DECLARE_ALIGNED_16( uint16_t nr_offset[2][64] ); |
| uint32_t nr_count[2]; |
| |
| /* Slice header */ |
| x264_slice_header_t sh; |
| |
| /* cabac context */ |
| x264_cabac_t cabac; |
| |
| struct |
| { |
| /* Frames to be encoded (whose types have been decided) */ |
| x264_frame_t *current[X264_BFRAME_MAX*4+3]; |
| /* Temporary buffer (frames types not yet decided) */ |
| x264_frame_t *next[X264_BFRAME_MAX*4+3]; |
| /* Unused frames */ |
| x264_frame_t *unused[X264_BFRAME_MAX*4 + X264_THREAD_MAX*2 + 16+4]; |
| /* For adaptive B decision */ |
| x264_frame_t *last_nonb; |
| |
| /* frames used for reference + sentinels */ |
| x264_frame_t *reference[16+2]; |
| |
| int i_last_idr; /* Frame number of the last IDR */ |
| |
| int i_input; /* Number of input frames already accepted */ |
| |
| int i_max_dpb; /* Number of frames allocated in the decoded picture buffer */ |
| int i_max_ref0; |
| int i_max_ref1; |
| int i_delay; /* Number of frames buffered for B reordering */ |
| int b_have_lowres; /* Whether 1/2 resolution luma planes are being used */ |
| } frames; |
| |
| /* current frame being encoded */ |
| x264_frame_t *fenc; |
| |
| /* frame being reconstructed */ |
| x264_frame_t *fdec; |
| |
| /* references lists */ |
| int i_ref0; |
| x264_frame_t *fref0[16+3]; /* ref list 0 */ |
| int i_ref1; |
| x264_frame_t *fref1[16+3]; /* ref list 1 */ |
| int b_ref_reorder[2]; |
| |
| |
| |
| /* Current MB DCT coeffs */ |
| struct |
| { |
| DECLARE_ALIGNED_16( int16_t luma16x16_dc[16] ); |
| DECLARE_ALIGNED_16( int16_t chroma_dc[2][4] ); |
| // FIXME share memory? |
| DECLARE_ALIGNED_16( int16_t luma8x8[4][64] ); |
| DECLARE_ALIGNED_16( int16_t luma4x4[16+8][16] ); |
| } dct; |
| |
| /* MB table and cache for current frame/mb */ |
| struct |
| { |
| int i_mb_count; /* number of mbs in a frame */ |
| |
| /* Strides */ |
| int i_mb_stride; |
| int i_b8_stride; |
| int i_b4_stride; |
| |
| /* Current index */ |
| int i_mb_x; |
| int i_mb_y; |
| int i_mb_xy; |
| int i_b8_xy; |
| int i_b4_xy; |
| |
| /* Search parameters */ |
| int i_me_method; |
| int i_subpel_refine; |
| int b_chroma_me; |
| int b_trellis; |
| int b_noise_reduction; |
| int i_psy_rd; /* Psy RD strength--fixed point value*/ |
| int i_psy_trellis; /* Psy trellis strength--fixed point value*/ |
| |
| int b_interlaced; |
| |
| /* Allowed qpel MV range to stay within the picture + emulated edge pixels */ |
| int mv_min[2]; |
| int mv_max[2]; |
| /* Subpel MV range for motion search. |
| * same mv_min/max but includes levels' i_mv_range. */ |
| int mv_min_spel[2]; |
| int mv_max_spel[2]; |
| /* Fullpel MV range for motion search */ |
| int mv_min_fpel[2]; |
| int mv_max_fpel[2]; |
| |
| /* neighboring MBs */ |
| unsigned int i_neighbour; |
| unsigned int i_neighbour8[4]; /* neighbours of each 8x8 or 4x4 block that are available */ |
| unsigned int i_neighbour4[16]; /* at the time the block is coded */ |
| int i_mb_type_top; |
| int i_mb_type_left; |
| int i_mb_type_topleft; |
| int i_mb_type_topright; |
| int i_mb_prev_xy; |
| int i_mb_top_xy; |
| |
| /**** thread synchronization ends here ****/ |
| /* subsequent variables are either thread-local or constant, |
| * and won't be copied from one thread to another */ |
| |
| /* mb table */ |
| int8_t *type; /* mb type */ |
| int8_t *qp; /* mb qp */ |
| int16_t *cbp; /* mb cbp: 0x0?: luma, 0x?0: chroma, 0x100: luma dc, 0x0200 and 0x0400: chroma dc (all set for PCM)*/ |
| int8_t (*intra4x4_pred_mode)[8]; /* intra4x4 pred mode. for non I4x4 set to I_PRED_4x4_DC(2) */ |
| /* actually has only 7 entries; set to 8 for write-combining optimizations */ |
| uint8_t (*non_zero_count)[16+4+4]; /* nzc. for I_PCM set to 16 */ |
| int8_t *chroma_pred_mode; /* chroma_pred_mode. cabac only. for non intra I_PRED_CHROMA_DC(0) */ |
| int16_t (*mv[2])[2]; /* mb mv. set to 0 for intra mb */ |
| int16_t (*mvd[2])[2]; /* mb mv difference with predict. set to 0 if intra. cabac only */ |
| int8_t *ref[2]; /* mb ref. set to -1 if non used (intra or Lx only) */ |
| int16_t (*mvr[2][32])[2]; /* 16x16 mv for each possible ref */ |
| int8_t *skipbp; /* block pattern for SKIP or DIRECT (sub)mbs. B-frames + cabac only */ |
| int8_t *mb_transform_size; /* transform_size_8x8_flag of each mb */ |
| uint8_t *intra_border_backup[2][3]; /* bottom pixels of the previous mb row, used for intra prediction after the framebuffer has been deblocked */ |
| uint8_t (*nnz_backup)[16]; /* when using cavlc + 8x8dct, the deblocker uses a modified nnz */ |
| |
| /* current value */ |
| int i_type; |
| int i_partition; |
| int i_sub_partition[4]; |
| int b_transform_8x8; |
| |
| int i_cbp_luma; |
| int i_cbp_chroma; |
| |
| int i_intra16x16_pred_mode; |
| int i_chroma_pred_mode; |
| |
| /* skip flags for i4x4 and i8x8 |
| * 0 = encode as normal. |
| * 1 (non-RD only) = the DCT is still in h->dct, restore fdec and skip reconstruction. |
| * 2 (RD only) = the DCT has since been overwritten by RD; restore that too. */ |
| int i_skip_intra; |
| /* skip flag for motion compensation */ |
| /* if we've already done MC, we don't need to do it again */ |
| int b_skip_mc; |
| |
| struct |
| { |
| /* space for p_fenc and p_fdec */ |
| #define FENC_STRIDE 16 |
| #define FDEC_STRIDE 32 |
| DECLARE_ALIGNED_16( uint8_t fenc_buf[24*FENC_STRIDE] ); |
| DECLARE_ALIGNED_16( uint8_t fdec_buf[27*FDEC_STRIDE] ); |
| |
| /* i4x4 and i8x8 backup data, for skipping the encode stage when possible */ |
| DECLARE_ALIGNED_16( uint8_t i4x4_fdec_buf[16*16] ); |
| DECLARE_ALIGNED_16( uint8_t i8x8_fdec_buf[16*16] ); |
| DECLARE_ALIGNED_16( int16_t i8x8_dct_buf[3][64] ); |
| DECLARE_ALIGNED_16( int16_t i4x4_dct_buf[15][16] ); |
| |
| /* Psy trellis DCT data */ |
| DECLARE_ALIGNED_16( int16_t fenc_dct8[4][64] ); |
| DECLARE_ALIGNED_16( int16_t fenc_dct4[16][16] ); |
| |
| /* Psy RD SATD scores */ |
| int fenc_satd[4][4]; |
| int fenc_satd_sum; |
| int fenc_sa8d[2][2]; |
| int fenc_sa8d_sum; |
| |
| /* pointer over mb of the frame to be compressed */ |
| uint8_t *p_fenc[3]; |
| /* pointer to the actual source frame, not a block copy */ |
| uint8_t *p_fenc_plane[3]; |
| |
| /* pointer over mb of the frame to be reconstructed */ |
| uint8_t *p_fdec[3]; |
| |
| /* pointer over mb of the references */ |
| int i_fref[2]; |
| uint8_t *p_fref[2][32][4+2]; /* last: lN, lH, lV, lHV, cU, cV */ |
| uint16_t *p_integral[2][16]; |
| |
| /* fref stride */ |
| int i_stride[3]; |
| } pic; |
| |
| /* cache */ |
| struct |
| { |
| /* real intra4x4_pred_mode if I_4X4 or I_8X8, I_PRED_4x4_DC if mb available, -1 if not */ |
| int8_t intra4x4_pred_mode[X264_SCAN8_SIZE]; |
| |
| /* i_non_zero_count if available else 0x80 */ |
| uint8_t non_zero_count[X264_SCAN8_SIZE]; |
| |
| /* -1 if unused, -2 if unavailable */ |
| DECLARE_ALIGNED_4( int8_t ref[2][X264_SCAN8_SIZE] ); |
| |
| /* 0 if not available */ |
| DECLARE_ALIGNED_16( int16_t mv[2][X264_SCAN8_SIZE][2] ); |
| DECLARE_ALIGNED_8( int16_t mvd[2][X264_SCAN8_SIZE][2] ); |
| |
| /* 1 if SKIP or DIRECT. set only for B-frames + CABAC */ |
| DECLARE_ALIGNED_4( int8_t skip[X264_SCAN8_SIZE] ); |
| |
| DECLARE_ALIGNED_16( int16_t direct_mv[2][X264_SCAN8_SIZE][2] ); |
| DECLARE_ALIGNED_4( int8_t direct_ref[2][X264_SCAN8_SIZE] ); |
| DECLARE_ALIGNED_4( int16_t pskip_mv[2] ); |
| |
| /* number of neighbors (top and left) that used 8x8 dct */ |
| int i_neighbour_transform_size; |
| int i_neighbour_interlaced; |
| } cache; |
| |
| /* */ |
| int i_qp; /* current qp */ |
| int i_chroma_qp; |
| int i_last_qp; /* last qp */ |
| int i_last_dqp; /* last delta qp */ |
| int b_variable_qp; /* whether qp is allowed to vary per macroblock */ |
| int b_lossless; |
| int b_direct_auto_read; /* take stats for --direct auto from the 2pass log */ |
| int b_direct_auto_write; /* analyse direct modes, to use and/or save */ |
| |
| /* B_direct and weighted prediction */ |
| int16_t dist_scale_factor[16][2]; |
| int16_t bipred_weight[32][4]; |
| /* maps fref1[0]'s ref indices into the current list0 */ |
| int8_t map_col_to_list0_buf[2]; // for negative indices |
| int8_t map_col_to_list0[16]; |
| } mb; |
| |
| /* rate control encoding only */ |
| x264_ratecontrol_t *rc; |
| |
| /* stats */ |
| struct |
| { |
| /* Current frame stats */ |
| struct |
| { |
| /* MV bits (MV+Ref+Block Type) */ |
| int i_mv_bits; |
| /* Texture bits (DCT coefs) */ |
| int i_tex_bits; |
| /* ? */ |
| int i_misc_bits; |
| /* MB type counts */ |
| int i_mb_count[19]; |
| int i_mb_count_i; |
| int i_mb_count_p; |
| int i_mb_count_skip; |
| int i_mb_count_8x8dct[2]; |
| int i_mb_count_ref[2][32]; |
| int i_mb_partition[17]; |
| /* Estimated (SATD) cost as Intra/Predicted frame */ |
| /* XXX: both omit the cost of MBs coded as P_SKIP */ |
| int i_intra_cost; |
| int i_inter_cost; |
| int i_mbs_analysed; |
| /* Adaptive direct mv pred */ |
| int i_direct_score[2]; |
| /* Metrics */ |
| int64_t i_ssd[3]; |
| double f_ssim; |
| } frame; |
| |
| /* Cumulated stats */ |
| |
| /* per slice info */ |
| int i_slice_count[5]; |
| int64_t i_slice_size[5]; |
| double f_slice_qp[5]; |
| int i_consecutive_bframes[X264_BFRAME_MAX+1]; |
| /* */ |
| int64_t i_ssd_global[5]; |
| double f_psnr_average[5]; |
| double f_psnr_mean_y[5]; |
| double f_psnr_mean_u[5]; |
| double f_psnr_mean_v[5]; |
| double f_ssim_mean_y[5]; |
| /* */ |
| int64_t i_mb_count[5][19]; |
| int64_t i_mb_partition[2][17]; |
| int64_t i_mb_count_8x8dct[2]; |
| int64_t i_mb_count_ref[2][2][32]; |
| /* */ |
| int i_direct_score[2]; |
| int i_direct_frames[2]; |
| |
| } stat; |
| |
| /* CPU functions dependents */ |
| x264_predict_t predict_16x16[4+3]; |
| x264_predict_t predict_8x8c[4+3]; |
| x264_predict8x8_t predict_8x8[9+3]; |
| x264_predict_t predict_4x4[9+3]; |
| |
| x264_pixel_function_t pixf; |
| x264_mc_functions_t mc; |
| x264_dct_function_t dctf; |
| x264_zigzag_function_t zigzagf; |
| x264_quant_function_t quantf; |
| x264_deblock_function_t loopf; |
| |
| #if VISUALIZE |
| struct visualize_t *visualize; |
| #endif |
| }; |
| |
| // included at the end because it needs x264_t |
| #include "macroblock.h" |
| |
| #ifdef HAVE_MMX |
| #include "x86/util.h" |
| #endif |
| |
| #endif |
| |
