common.c
资源名称:X264CODEC.rar [点击查看]
上传用户:lctgjx
上传日期:2022-06-04
资源大小:8887k
文件大小:30k
源码类别:
流媒体/Mpeg4/MP4
开发平台:
Visual C++
- /*****************************************************************************
- * common.c: h264 library
- *****************************************************************************
- * Copyright (C) 2003-2008 x264 project
- *
- * Authors: Loren Merritt <lorenm@u.washington.edu>
- * Laurent Aimar <fenrir@via.ecp.fr>
- *
- * 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.
- *****************************************************************************/
- #include <stdarg.h>
- #include <ctype.h>
- #ifdef HAVE_MALLOC_H
- #include <malloc.h>
- #endif
- #include "common.h"
- #include "cpu.h"
- static void x264_log_default( void *, int, const char *, va_list );
- /****************************************************************************
- * x264_param_default:
- ****************************************************************************/
- void x264_param_default( x264_param_t *param )
- {
- /* */
- memset( param, 0, sizeof( x264_param_t ) );
- /* CPU autodetect */
- param->cpu = x264_cpu_detect();
- param->i_threads = X264_THREADS_AUTO;
- param->b_deterministic = 1;
- param->i_sync_lookahead = X264_SYNC_LOOKAHEAD_AUTO;
- /* Video properties */
- param->i_csp = X264_CSP_I420;
- param->i_width = 0;
- param->i_height = 0;
- param->vui.i_sar_width = 0;
- param->vui.i_sar_height= 0;
- param->vui.i_overscan = 0; /* undef */
- param->vui.i_vidformat = 5; /* undef */
- param->vui.b_fullrange = 0; /* off */
- param->vui.i_colorprim = 2; /* undef */
- param->vui.i_transfer = 2; /* undef */
- param->vui.i_colmatrix = 2; /* undef */
- param->vui.i_chroma_loc= 0; /* left center */
- param->i_fps_num = 25;
- param->i_fps_den = 1;
- param->i_level_idc = -1;
- param->i_slice_max_size = 0;
- param->i_slice_max_mbs = 0;
- param->i_slice_count = 0;
- /* Encoder parameters */
- param->i_frame_reference = 3;
- param->i_keyint_max = 250;
- param->i_keyint_min = 25;
- param->i_bframe = 3;
- param->i_scenecut_threshold = 40;
- param->i_bframe_adaptive = X264_B_ADAPT_FAST;
- param->i_bframe_bias = 0;
- param->b_bframe_pyramid = 0;
- param->b_interlaced = 0;
- param->b_constrained_intra = 0;
- param->b_deblocking_filter = 1;
- param->i_deblocking_filter_alphac0 = 0;
- param->i_deblocking_filter_beta = 0;
- param->b_cabac = 1;
- param->i_cabac_init_idc = 0;
- param->rc.i_rc_method = X264_RC_CRF;
- param->rc.i_bitrate = 0;
- param->rc.f_rate_tolerance = 1.0;
- param->rc.i_vbv_max_bitrate = 0;
- param->rc.i_vbv_buffer_size = 0;
- param->rc.f_vbv_buffer_init = 0.9;
- param->rc.i_qp_constant = 23;
- param->rc.f_rf_constant = 23;
- param->rc.i_qp_min = 10;
- param->rc.i_qp_max = 51;
- param->rc.i_qp_step = 4;
- param->rc.f_ip_factor = 1.4;
- param->rc.f_pb_factor = 1.3;
- param->rc.i_aq_mode = X264_AQ_VARIANCE;
- param->rc.f_aq_strength = 1.0;
- param->rc.i_lookahead = 40;
- param->rc.b_stat_write = 0;
- param->rc.psz_stat_out = "x264_2pass.log";
- param->rc.b_stat_read = 0;
- param->rc.psz_stat_in = "x264_2pass.log";
- param->rc.f_qcompress = 0.6;
- param->rc.f_qblur = 0.5;
- param->rc.f_complexity_blur = 20;
- param->rc.i_zones = 0;
- param->rc.b_mb_tree = 1;
- /* Log */
- param->pf_log = x264_log_default;
- param->p_log_private = NULL;
- param->i_log_level = X264_LOG_INFO;
- /* */
- param->analyse.intra = X264_ANALYSE_I4x4 | X264_ANALYSE_I8x8;
- param->analyse.inter = X264_ANALYSE_I4x4 | X264_ANALYSE_I8x8
- | X264_ANALYSE_PSUB16x16 | X264_ANALYSE_BSUB16x16;
- param->analyse.i_direct_mv_pred = X264_DIRECT_PRED_SPATIAL;
- param->analyse.i_me_method = X264_ME_HEX;
- param->analyse.f_psy_rd = 1.0;
- param->analyse.b_psy = 1;
- param->analyse.f_psy_trellis = 0;
- param->analyse.i_me_range = 16;
- param->analyse.i_subpel_refine = 7;
- param->analyse.b_mixed_references = 1;
- param->analyse.b_chroma_me = 1;
- param->analyse.i_mv_range_thread = -1;
- param->analyse.i_mv_range = -1; // set from level_idc
- param->analyse.i_chroma_qp_offset = 0;
- param->analyse.b_fast_pskip = 1;
- param->analyse.b_weighted_bipred = 1;
- param->analyse.b_dct_decimate = 1;
- param->analyse.b_transform_8x8 = 1;
- param->analyse.i_trellis = 1;
- param->analyse.i_luma_deadzone[0] = 21;
- param->analyse.i_luma_deadzone[1] = 11;
- param->analyse.b_psnr = 0;
- param->analyse.b_ssim = 0;
- param->i_cqm_preset = X264_CQM_FLAT;
- memset( param->cqm_4iy, 16, 16 );
- memset( param->cqm_4ic, 16, 16 );
- memset( param->cqm_4py, 16, 16 );
- memset( param->cqm_4pc, 16, 16 );
- memset( param->cqm_8iy, 16, 64 );
- memset( param->cqm_8py, 16, 64 );
- param->b_repeat_headers = 1;
- param->b_annexb = 1;
- param->b_aud = 0;
- }
- static int parse_enum( const char *arg, const char * const *names, int *dst )
- {
- int i;
- for( i = 0; names[i]; i++ )
- if( !strcmp( arg, names[i] ) )
- {
- *dst = i;
- return 0;
- }
- return -1;
- }
- static int parse_cqm( const char *str, uint8_t *cqm, int length )
- {
- int i = 0;
- do {
- int coef;
- if( !sscanf( str, "%d", &coef ) || coef < 1 || coef > 255 )
- return -1;
- cqm[i++] = coef;
- } while( i < length && (str = strchr( str, ',' )) && str++ );
- return (i == length) ? 0 : -1;
- }
- static int x264_atobool( const char *str, int *b_error )
- {
- if( !strcmp(str, "1") ||
- !strcmp(str, "true") ||
- !strcmp(str, "yes") )
- return 1;
- if( !strcmp(str, "0") ||
- !strcmp(str, "false") ||
- !strcmp(str, "no") )
- return 0;
- *b_error = 1;
- return 0;
- }
- static int x264_atoi( const char *str, int *b_error )
- {
- char *end;
- int v = strtol( str, &end, 0 );
- if( end == str || *end != ' ' )
- *b_error = 1;
- return v;
- }
- static double x264_atof( const char *str, int *b_error )
- {
- char *end;
- double v = strtod( str, &end );
- if( end == str || *end != ' ' )
- *b_error = 1;
- return v;
- }
- #define atobool(str) ( name_was_bool = 1, x264_atobool( str, &b_error ) )
- #define atoi(str) x264_atoi( str, &b_error )
- #define atof(str) x264_atof( str, &b_error )
- int x264_param_parse( x264_param_t *p, const char *name, const char *value )
- {
- char *name_buf = NULL;
- int b_error = 0;
- int name_was_bool;
- int value_was_null = !value;
- int i;
- if( !name )
- return X264_PARAM_BAD_NAME;
- if( !value )
- value = "true";
- if( value[0] == '=' )
- value++;
- if( strchr( name, '_' ) ) // s/_/-/g
- {
- char *p;
- name_buf = strdup(name);
- while( (p = strchr( name_buf, '_' )) )
- *p = '-';
- name = name_buf;
- }
- if( (!strncmp( name, "no-", 3 ) && (i = 3)) ||
- (!strncmp( name, "no", 2 ) && (i = 2)) )
- {
- name += i;
- value = atobool(value) ? "false" : "true";
- }
- name_was_bool = 0;
- #define OPT(STR) else if( !strcmp( name, STR ) )
- #define OPT2(STR0, STR1) else if( !strcmp( name, STR0 ) || !strcmp( name, STR1 ) )
- if(0);
- OPT("asm")
- {
- p->cpu = isdigit(value[0]) ? atoi(value) :
- !strcmp(value, "auto") || atobool(value) ? x264_cpu_detect() : 0;
- if( b_error )
- {
- char *buf = strdup(value);
- char *tok, UNUSED *saveptr, *init;
- b_error = 0;
- p->cpu = 0;
- for( init=buf; (tok=strtok_r(init, ",", &saveptr)); init=NULL )
- {
- for( i=0; x264_cpu_names[i].flags && strcasecmp(tok, x264_cpu_names[i].name); i++ );
- p->cpu |= x264_cpu_names[i].flags;
- if( !x264_cpu_names[i].flags )
- b_error = 1;
- }
- free( buf );
- }
- }
- OPT("threads")
- {
- if( !strcmp(value, "auto") )
- p->i_threads = X264_THREADS_AUTO;
- else
- p->i_threads = atoi(value);
- }
- OPT("sync-lookahead")
- {
- if( !strcmp(value, "auto") )
- p->i_sync_lookahead = X264_SYNC_LOOKAHEAD_AUTO;
- else
- p->i_sync_lookahead = atoi(value);
- }
- OPT2("deterministic", "n-deterministic")
- p->b_deterministic = atobool(value);
- OPT2("level", "level-idc")
- {
- if( atof(value) < 6 )
- p->i_level_idc = (int)(10*atof(value)+.5);
- else
- p->i_level_idc = atoi(value);
- }
- OPT("sar")
- {
- b_error = ( 2 != sscanf( value, "%d:%d", &p->vui.i_sar_width, &p->vui.i_sar_height ) &&
- 2 != sscanf( value, "%d/%d", &p->vui.i_sar_width, &p->vui.i_sar_height ) );
- }
- OPT("overscan")
- b_error |= parse_enum( value, x264_overscan_names, &p->vui.i_overscan );
- OPT("videoformat")
- b_error |= parse_enum( value, x264_vidformat_names, &p->vui.i_vidformat );
- OPT("fullrange")
- b_error |= parse_enum( value, x264_fullrange_names, &p->vui.b_fullrange );
- OPT("colorprim")
- b_error |= parse_enum( value, x264_colorprim_names, &p->vui.i_colorprim );
- OPT("transfer")
- b_error |= parse_enum( value, x264_transfer_names, &p->vui.i_transfer );
- OPT("colormatrix")
- b_error |= parse_enum( value, x264_colmatrix_names, &p->vui.i_colmatrix );
- OPT("chromaloc")
- {
- p->vui.i_chroma_loc = atoi(value);
- b_error = ( p->vui.i_chroma_loc < 0 || p->vui.i_chroma_loc > 5 );
- }
- OPT("fps")
- {
- if( sscanf( value, "%d/%d", &p->i_fps_num, &p->i_fps_den ) == 2 )
- ;
- else
- {
- float fps = atof(value);
- p->i_fps_num = (int)(fps * 1000 + .5);
- p->i_fps_den = 1000;
- }
- }
- OPT2("ref", "frameref")
- p->i_frame_reference = atoi(value);
- OPT("keyint")
- {
- p->i_keyint_max = atoi(value);
- if( p->i_keyint_min > p->i_keyint_max )
- p->i_keyint_min = p->i_keyint_max;
- }
- OPT2("min-keyint", "keyint-min")
- {
- p->i_keyint_min = atoi(value);
- if( p->i_keyint_max < p->i_keyint_min )
- p->i_keyint_max = p->i_keyint_min;
- }
- OPT("scenecut")
- {
- p->i_scenecut_threshold = atobool(value);
- if( b_error || p->i_scenecut_threshold )
- {
- b_error = 0;
- p->i_scenecut_threshold = atoi(value);
- }
- }
- OPT("bframes")
- p->i_bframe = atoi(value);
- OPT("b-adapt")
- {
- p->i_bframe_adaptive = atobool(value);
- if( b_error )
- {
- b_error = 0;
- p->i_bframe_adaptive = atoi(value);
- }
- }
- OPT("b-bias")
- p->i_bframe_bias = atoi(value);
- OPT("b-pyramid")
- p->b_bframe_pyramid = atobool(value);
- OPT("nf")
- p->b_deblocking_filter = !atobool(value);
- OPT2("filter", "deblock")
- {
- if( 2 == sscanf( value, "%d:%d", &p->i_deblocking_filter_alphac0, &p->i_deblocking_filter_beta ) ||
- 2 == sscanf( value, "%d,%d", &p->i_deblocking_filter_alphac0, &p->i_deblocking_filter_beta ) )
- {
- p->b_deblocking_filter = 1;
- }
- else if( sscanf( value, "%d", &p->i_deblocking_filter_alphac0 ) )
- {
- p->b_deblocking_filter = 1;
- p->i_deblocking_filter_beta = p->i_deblocking_filter_alphac0;
- }
- else
- p->b_deblocking_filter = atobool(value);
- }
- OPT("slice-max-size")
- p->i_slice_max_size = atoi(value);
- OPT("slice-max-mbs")
- p->i_slice_max_mbs = atoi(value);
- OPT("slices")
- p->i_slice_count = atoi(value);
- OPT("cabac")
- p->b_cabac = atobool(value);
- OPT("cabac-idc")
- p->i_cabac_init_idc = atoi(value);
- OPT("interlaced")
- p->b_interlaced = atobool(value);
- OPT("constrained-intra")
- p->b_constrained_intra = atobool(value);
- OPT("cqm")
- {
- if( strstr( value, "flat" ) )
- p->i_cqm_preset = X264_CQM_FLAT;
- else if( strstr( value, "jvt" ) )
- p->i_cqm_preset = X264_CQM_JVT;
- else
- p->psz_cqm_file = strdup(value);
- }
- OPT("cqmfile")
- p->psz_cqm_file = strdup(value);
- OPT("cqm4")
- {
- p->i_cqm_preset = X264_CQM_CUSTOM;
- b_error |= parse_cqm( value, p->cqm_4iy, 16 );
- b_error |= parse_cqm( value, p->cqm_4ic, 16 );
- b_error |= parse_cqm( value, p->cqm_4py, 16 );
- b_error |= parse_cqm( value, p->cqm_4pc, 16 );
- }
- OPT("cqm8")
- {
- p->i_cqm_preset = X264_CQM_CUSTOM;
- b_error |= parse_cqm( value, p->cqm_8iy, 64 );
- b_error |= parse_cqm( value, p->cqm_8py, 64 );
- }
- OPT("cqm4i")
- {
- p->i_cqm_preset = X264_CQM_CUSTOM;
- b_error |= parse_cqm( value, p->cqm_4iy, 16 );
- b_error |= parse_cqm( value, p->cqm_4ic, 16 );
- }
- OPT("cqm4p")
- {
- p->i_cqm_preset = X264_CQM_CUSTOM;
- b_error |= parse_cqm( value, p->cqm_4py, 16 );
- b_error |= parse_cqm( value, p->cqm_4pc, 16 );
- }
- OPT("cqm4iy")
- {
- p->i_cqm_preset = X264_CQM_CUSTOM;
- b_error |= parse_cqm( value, p->cqm_4iy, 16 );
- }
- OPT("cqm4ic")
- {
- p->i_cqm_preset = X264_CQM_CUSTOM;
- b_error |= parse_cqm( value, p->cqm_4ic, 16 );
- }
- OPT("cqm4py")
- {
- p->i_cqm_preset = X264_CQM_CUSTOM;
- b_error |= parse_cqm( value, p->cqm_4py, 16 );
- }
- OPT("cqm4pc")
- {
- p->i_cqm_preset = X264_CQM_CUSTOM;
- b_error |= parse_cqm( value, p->cqm_4pc, 16 );
- }
- OPT("cqm8i")
- {
- p->i_cqm_preset = X264_CQM_CUSTOM;
- b_error |= parse_cqm( value, p->cqm_8iy, 64 );
- }
- OPT("cqm8p")
- {
- p->i_cqm_preset = X264_CQM_CUSTOM;
- b_error |= parse_cqm( value, p->cqm_8py, 64 );
- }
- OPT("log")
- p->i_log_level = atoi(value);
- #ifdef VISUALIZE
- OPT("visualize")
- p->b_visualize = atobool(value);
- #endif
- OPT("dump-yuv")
- p->psz_dump_yuv = strdup(value);
- OPT2("analyse", "partitions")
- {
- p->analyse.inter = 0;
- if( strstr( value, "none" ) ) p->analyse.inter = 0;
- if( strstr( value, "all" ) ) p->analyse.inter = ~0;
- if( strstr( value, "i4x4" ) ) p->analyse.inter |= X264_ANALYSE_I4x4;
- if( strstr( value, "i8x8" ) ) p->analyse.inter |= X264_ANALYSE_I8x8;
- if( strstr( value, "p8x8" ) ) p->analyse.inter |= X264_ANALYSE_PSUB16x16;
- if( strstr( value, "p4x4" ) ) p->analyse.inter |= X264_ANALYSE_PSUB8x8;
- if( strstr( value, "b8x8" ) ) p->analyse.inter |= X264_ANALYSE_BSUB16x16;
- }
- OPT("8x8dct")
- p->analyse.b_transform_8x8 = atobool(value);
- OPT2("weightb", "weight-b")
- p->analyse.b_weighted_bipred = atobool(value);
- OPT2("direct", "direct-pred")
- b_error |= parse_enum( value, x264_direct_pred_names, &p->analyse.i_direct_mv_pred );
- OPT("chroma-qp-offset")
- p->analyse.i_chroma_qp_offset = atoi(value);
- OPT("me")
- b_error |= parse_enum( value, x264_motion_est_names, &p->analyse.i_me_method );
- OPT2("merange", "me-range")
- p->analyse.i_me_range = atoi(value);
- OPT2("mvrange", "mv-range")
- p->analyse.i_mv_range = atoi(value);
- OPT2("mvrange-thread", "mv-range-thread")
- p->analyse.i_mv_range_thread = atoi(value);
- OPT2("subme", "subq")
- p->analyse.i_subpel_refine = atoi(value);
- OPT("psy-rd")
- {
- if( 2 == sscanf( value, "%f:%f", &p->analyse.f_psy_rd, &p->analyse.f_psy_trellis ) ||
- 2 == sscanf( value, "%f,%f", &p->analyse.f_psy_rd, &p->analyse.f_psy_trellis ) )
- { }
- else if( sscanf( value, "%f", &p->analyse.f_psy_rd ) )
- {
- p->analyse.f_psy_trellis = 0;
- }
- else
- {
- p->analyse.f_psy_rd = 0;
- p->analyse.f_psy_trellis = 0;
- }
- }
- OPT("psy")
- p->analyse.b_psy = atobool(value);
- OPT("chroma-me")
- p->analyse.b_chroma_me = atobool(value);
- OPT("mixed-refs")
- p->analyse.b_mixed_references = atobool(value);
- OPT("trellis")
- p->analyse.i_trellis = atoi(value);
- OPT("fast-pskip")
- p->analyse.b_fast_pskip = atobool(value);
- OPT("dct-decimate")
- p->analyse.b_dct_decimate = atobool(value);
- OPT("deadzone-inter")
- p->analyse.i_luma_deadzone[0] = atoi(value);
- OPT("deadzone-intra")
- p->analyse.i_luma_deadzone[1] = atoi(value);
- OPT("nr")
- p->analyse.i_noise_reduction = atoi(value);
- OPT("bitrate")
- {
- p->rc.i_bitrate = atoi(value);
- p->rc.i_rc_method = X264_RC_ABR;
- }
- OPT2("qp", "qp_constant")
- {
- p->rc.i_qp_constant = atoi(value);
- p->rc.i_rc_method = X264_RC_CQP;
- }
- OPT("crf")
- {
- p->rc.f_rf_constant = atof(value);
- p->rc.i_rc_method = X264_RC_CRF;
- }
- OPT("rc-lookahead")
- p->rc.i_lookahead = atoi(value);
- OPT2("qpmin", "qp-min")
- p->rc.i_qp_min = atoi(value);
- OPT2("qpmax", "qp-max")
- p->rc.i_qp_max = atoi(value);
- OPT2("qpstep", "qp-step")
- p->rc.i_qp_step = atoi(value);
- OPT("ratetol")
- p->rc.f_rate_tolerance = !strncmp("inf", value, 3) ? 1e9 : atof(value);
- OPT("vbv-maxrate")
- p->rc.i_vbv_max_bitrate = atoi(value);
- OPT("vbv-bufsize")
- p->rc.i_vbv_buffer_size = atoi(value);
- OPT("vbv-init")
- p->rc.f_vbv_buffer_init = atof(value);
- OPT2("ipratio", "ip-factor")
- p->rc.f_ip_factor = atof(value);
- OPT2("pbratio", "pb-factor")
- p->rc.f_pb_factor = atof(value);
- OPT("aq-mode")
- p->rc.i_aq_mode = atoi(value);
- OPT("aq-strength")
- p->rc.f_aq_strength = atof(value);
- OPT("pass")
- {
- int i = x264_clip3( atoi(value), 0, 3 );
- p->rc.b_stat_write = i & 1;
- p->rc.b_stat_read = i & 2;
- }
- OPT("stats")
- {
- p->rc.psz_stat_in = strdup(value);
- p->rc.psz_stat_out = strdup(value);
- }
- OPT("qcomp")
- p->rc.f_qcompress = atof(value);
- OPT("mbtree")
- p->rc.b_mb_tree = atobool(value);
- OPT("qblur")
- p->rc.f_qblur = atof(value);
- OPT2("cplxblur", "cplx-blur")
- p->rc.f_complexity_blur = atof(value);
- OPT("zones")
- p->rc.psz_zones = strdup(value);
- OPT("psnr")
- p->analyse.b_psnr = atobool(value);
- OPT("ssim")
- p->analyse.b_ssim = atobool(value);
- OPT("aud")
- p->b_aud = atobool(value);
- OPT("sps-id")
- p->i_sps_id = atoi(value);
- OPT("global-header")
- p->b_repeat_headers = !atobool(value);
- OPT("repeat-headers")
- p->b_repeat_headers = atobool(value);
- OPT("annexb")
- p->b_annexb = atobool(value);
- else
- return X264_PARAM_BAD_NAME;
- #undef OPT
- #undef OPT2
- #undef atobool
- #undef atoi
- #undef atof
- if( name_buf )
- free( name_buf );
- b_error |= value_was_null && !name_was_bool;
- return b_error ? X264_PARAM_BAD_VALUE : 0;
- }
- /****************************************************************************
- * x264_log:
- ****************************************************************************/
- void x264_log( x264_t *h, int i_level, const char *psz_fmt, ... )
- {
- if( !h || i_level <= h->param.i_log_level )
- {
- va_list arg;
- va_start( arg, psz_fmt );
- if( !h )
- x264_log_default( NULL, i_level, psz_fmt, arg );
- else
- h->param.pf_log( h->param.p_log_private, i_level, psz_fmt, arg );
- va_end( arg );
- }
- }
- static void x264_log_default( void *p_unused, int i_level, const char *psz_fmt, va_list arg )
- {
- char *psz_prefix;
- switch( i_level )
- {
- case X264_LOG_ERROR:
- psz_prefix = "error";
- break;
- case X264_LOG_WARNING:
- psz_prefix = "warning";
- break;
- case X264_LOG_INFO:
- psz_prefix = "info";
- break;
- case X264_LOG_DEBUG:
- psz_prefix = "debug";
- break;
- default:
- psz_prefix = "unknown";
- break;
- }
- fprintf( stderr, "x264 [%s]: ", psz_prefix );
- vfprintf( stderr, psz_fmt, arg );
- }
- /****************************************************************************
- * x264_picture_alloc:
- ****************************************************************************/
- int x264_picture_alloc( x264_picture_t *pic, int i_csp, int i_width, int i_height )
- {
- pic->i_type = X264_TYPE_AUTO;
- pic->i_qpplus1 = 0;
- pic->img.i_csp = i_csp;
- pic->img.i_plane = 3;
- pic->img.plane[0] = x264_malloc( 3 * i_width * i_height / 2 );
- if( !pic->img.plane[0] )
- return -1;
- pic->img.plane[1] = pic->img.plane[0] + i_width * i_height;
- pic->img.plane[2] = pic->img.plane[1] + i_width * i_height / 4;
- pic->img.i_stride[0] = i_width;
- pic->img.i_stride[1] = i_width / 2;
- pic->img.i_stride[2] = i_width / 2;
- pic->param = NULL;
- return 0;
- }
- /****************************************************************************
- * x264_picture_clean:
- ****************************************************************************/
- void x264_picture_clean( x264_picture_t *pic )
- {
- x264_free( pic->img.plane[0] );
- /* just to be safe */
- memset( pic, 0, sizeof( x264_picture_t ) );
- }
- /****************************************************************************
- * x264_nal_encode:
- ****************************************************************************/
- int x264_nal_encode( uint8_t *dst, int b_annexb, x264_nal_t *nal )
- {
- uint8_t *src = nal->p_payload;
- uint8_t *end = nal->p_payload + nal->i_payload;
- uint8_t *orig_dst = dst;
- int i_count = 0, size;
- /* long nal start code (we always use long ones) */
- if( b_annexb )
- {
- *dst++ = 0x00;
- *dst++ = 0x00;
- *dst++ = 0x00;
- *dst++ = 0x01;
- }
- else /* save room for size later */
- dst += 4;
- /* nal header */
- *dst++ = ( 0x00 << 7 ) | ( nal->i_ref_idc << 5 ) | nal->i_type;
- while( src < end )
- {
- if( i_count == 2 && *src <= 0x03 )
- {
- *dst++ = 0x03;
- i_count = 0;
- }
- if( *src == 0 )
- i_count++;
- else
- i_count = 0;
- *dst++ = *src++;
- }
- size = (dst - orig_dst) - 4;
- /* Write the size header for mp4/etc */
- if( !b_annexb )
- {
- /* Size doesn't include the size of the header we're writing now. */
- orig_dst[0] = size>>24;
- orig_dst[1] = size>>16;
- orig_dst[2] = size>> 8;
- orig_dst[3] = size>> 0;
- }
- return size+4;
- }
- /****************************************************************************
- * x264_malloc:
- ****************************************************************************/
- void *x264_malloc( int i_size )
- {
- uint8_t *align_buf = NULL;
- #ifdef SYS_MACOSX
- /* Mac OS X always returns 16 bytes aligned memory */
- align_buf = malloc( i_size );
- #elif defined( HAVE_MALLOC_H )
- align_buf = memalign( 16, i_size );
- #else
- uint8_t *buf = malloc( i_size + 15 + sizeof(void **) + sizeof(int) );
- if( buf )
- {
- align_buf = buf + 15 + sizeof(void **) + sizeof(int);
- align_buf -= (intptr_t) align_buf & 15;
- *( (void **) ( align_buf - sizeof(void **) ) ) = buf;
- *( (int *) ( align_buf - sizeof(void **) - sizeof(int) ) ) = i_size;
- }
- #endif
- if( !align_buf )
- x264_log( NULL, X264_LOG_ERROR, "malloc of size %d failedn", i_size );
- return align_buf;
- }
- /****************************************************************************
- * x264_free:
- ****************************************************************************/
- void x264_free( void *p )
- {
- if( p )
- {
- #if defined( HAVE_MALLOC_H ) || defined( SYS_MACOSX )
- free( p );
- #else
- free( *( ( ( void **) p ) - 1 ) );
- #endif
- }
- }
- /****************************************************************************
- * x264_reduce_fraction:
- ****************************************************************************/
- void x264_reduce_fraction( int *n, int *d )
- {
- int a = *n;
- int b = *d;
- int c;
- if( !a || !b )
- return;
- c = a % b;
- while(c)
- {
- a = b;
- b = c;
- c = a % b;
- }
- *n /= b;
- *d /= b;
- }
- /****************************************************************************
- * x264_slurp_file:
- ****************************************************************************/
- char *x264_slurp_file( const char *filename )
- {
- int b_error = 0;
- int i_size;
- char *buf;
- FILE *fh = fopen( filename, "rb" );
- if( !fh )
- return NULL;
- b_error |= fseek( fh, 0, SEEK_END ) < 0;
- b_error |= ( i_size = ftell( fh ) ) <= 0;
- b_error |= fseek( fh, 0, SEEK_SET ) < 0;
- if( b_error )
- return NULL;
- buf = x264_malloc( i_size+2 );
- if( buf == NULL )
- return NULL;
- b_error |= fread( buf, 1, i_size, fh ) != i_size;
- if( buf[i_size-1] != 'n' )
- buf[i_size++] = 'n';
- buf[i_size] = 0;
- fclose( fh );
- if( b_error )
- {
- x264_free( buf );
- return NULL;
- }
- return buf;
- }
- /****************************************************************************
- * x264_param2string:
- ****************************************************************************/
- char *x264_param2string( x264_param_t *p, int b_res )
- {
- int len = 1000;
- char *buf, *s;
- if( p->rc.psz_zones )
- len += strlen(p->rc.psz_zones);
- buf = s = x264_malloc( len );
- if( !buf )
- return NULL;
- if( b_res )
- {
- s += sprintf( s, "%dx%d ", p->i_width, p->i_height );
- s += sprintf( s, "fps=%d/%d ", p->i_fps_num, p->i_fps_den );
- }
- s += sprintf( s, "cabac=%d", p->b_cabac );
- s += sprintf( s, " ref=%d", p->i_frame_reference );
- s += sprintf( s, " deblock=%d:%d:%d", p->b_deblocking_filter,
- p->i_deblocking_filter_alphac0, p->i_deblocking_filter_beta );
- s += sprintf( s, " analyse=%#x:%#x", p->analyse.intra, p->analyse.inter );
- s += sprintf( s, " me=%s", x264_motion_est_names[ p->analyse.i_me_method ] );
- s += sprintf( s, " subme=%d", p->analyse.i_subpel_refine );
- s += sprintf( s, " psy=%d", p->analyse.b_psy );
- if( p->analyse.b_psy )
- s += sprintf( s, " psy_rd=%.1f:%.1f", p->analyse.f_psy_rd, p->analyse.f_psy_trellis );
- s += sprintf( s, " mixed_ref=%d", p->analyse.b_mixed_references );
- s += sprintf( s, " me_range=%d", p->analyse.i_me_range );
- s += sprintf( s, " chroma_me=%d", p->analyse.b_chroma_me );
- s += sprintf( s, " trellis=%d", p->analyse.i_trellis );
- s += sprintf( s, " 8x8dct=%d", p->analyse.b_transform_8x8 );
- s += sprintf( s, " cqm=%d", p->i_cqm_preset );
- s += sprintf( s, " deadzone=%d,%d", p->analyse.i_luma_deadzone[0], p->analyse.i_luma_deadzone[1] );
- s += sprintf( s, " chroma_qp_offset=%d", p->analyse.i_chroma_qp_offset );
- s += sprintf( s, " threads=%d", p->i_threads );
- if( p->i_slice_count )
- s += sprintf( s, " slices=%d", p->i_slice_count );
- if( p->i_slice_max_size )
- s += sprintf( s, " slice_max_size=%d", p->i_slice_max_size );
- if( p->i_slice_max_mbs )
- s += sprintf( s, " slice_max_mbs=%d", p->i_slice_max_mbs );
- s += sprintf( s, " nr=%d", p->analyse.i_noise_reduction );
- s += sprintf( s, " decimate=%d", p->analyse.b_dct_decimate );
- s += sprintf( s, " mbaff=%d", p->b_interlaced );
- s += sprintf( s, " constrained_intra=%d", p->b_constrained_intra );
- s += sprintf( s, " bframes=%d", p->i_bframe );
- if( p->i_bframe )
- {
- s += sprintf( s, " b_pyramid=%d b_adapt=%d b_bias=%d direct=%d wpredb=%d",
- p->b_bframe_pyramid, p->i_bframe_adaptive, p->i_bframe_bias,
- p->analyse.i_direct_mv_pred, p->analyse.b_weighted_bipred );
- }
- s += sprintf( s, " keyint=%d keyint_min=%d scenecut=%d",
- p->i_keyint_max, p->i_keyint_min, p->i_scenecut_threshold );
- if( p->rc.b_mb_tree || p->rc.i_vbv_buffer_size )
- s += sprintf( s, " rc_lookahead=%d", p->rc.i_lookahead );
- s += sprintf( s, " rc=%s mbtree=%d", p->rc.i_rc_method == X264_RC_ABR ?
- ( p->rc.b_stat_read ? "2pass" : p->rc.i_vbv_buffer_size ? "cbr" : "abr" )
- : p->rc.i_rc_method == X264_RC_CRF ? "crf" : "cqp", p->rc.b_mb_tree );
- if( p->rc.i_rc_method == X264_RC_ABR || p->rc.i_rc_method == X264_RC_CRF )
- {
- if( p->rc.i_rc_method == X264_RC_CRF )
- s += sprintf( s, " crf=%.1f", p->rc.f_rf_constant );
- else
- s += sprintf( s, " bitrate=%d ratetol=%.1f",
- p->rc.i_bitrate, p->rc.f_rate_tolerance );
- s += sprintf( s, " qcomp=%.2f qpmin=%d qpmax=%d qpstep=%d",
- p->rc.f_qcompress, p->rc.i_qp_min, p->rc.i_qp_max, p->rc.i_qp_step );
- if( p->rc.b_stat_read )
- s += sprintf( s, " cplxblur=%.1f qblur=%.1f",
- p->rc.f_complexity_blur, p->rc.f_qblur );
- if( p->rc.i_vbv_buffer_size )
- s += sprintf( s, " vbv_maxrate=%d vbv_bufsize=%d",
- p->rc.i_vbv_max_bitrate, p->rc.i_vbv_buffer_size );
- }
- else if( p->rc.i_rc_method == X264_RC_CQP )
- s += sprintf( s, " qp=%d", p->rc.i_qp_constant );
- if( !(p->rc.i_rc_method == X264_RC_CQP && p->rc.i_qp_constant == 0) )
- {
- s += sprintf( s, " ip_ratio=%.2f", p->rc.f_ip_factor );
- if( p->i_bframe && !p->rc.b_mb_tree )
- s += sprintf( s, " pb_ratio=%.2f", p->rc.f_pb_factor );
- s += sprintf( s, " aq=%d", p->rc.i_aq_mode );
- if( p->rc.i_aq_mode )
- s += sprintf( s, ":%.2f", p->rc.f_aq_strength );
- if( p->rc.psz_zones )
- s += sprintf( s, " zones=%s", p->rc.psz_zones );
- else if( p->rc.i_zones )
- s += sprintf( s, " zones" );
- }
- return buf;
- }