| /***************************************************************************** |
| * 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 = 1; |
| param->b_deterministic = 1; |
| |
| /* 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; |
| |
| /* Encoder parameters */ |
| param->i_frame_reference = 1; |
| param->i_keyint_max = 250; |
| param->i_keyint_min = 25; |
| param->i_bframe = 0; |
| 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_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_NONE; |
| 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 = 26; |
| param->rc.f_rf_constant = 0; |
| 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.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; |
| |
| /* 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.f_psy_trellis = 0; |
| param->analyse.i_me_range = 16; |
| param->analyse.i_subpel_refine = 6; |
| 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_direct_8x8_inference = 1; |
| param->analyse.i_chroma_qp_offset = 0; |
| param->analyse.b_fast_pskip = 1; |
| param->analyse.b_dct_decimate = 1; |
| param->analyse.i_luma_deadzone[0] = 21; |
| param->analyse.i_luma_deadzone[1] = 11; |
| param->analyse.b_psnr = 1; |
| param->analyse.b_ssim = 1; |
| |
| 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_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 != '\0' ) |
| *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 != '\0' ) |
| *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, *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 = 0; |
| else |
| p->i_threads = 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 = atoi(value); |
| OPT("pre-scenecut") |
| p->b_pre_scenecut = atobool(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("cabac") |
| p->b_cabac = atobool(value); |
| OPT("cabac-idc") |
| p->i_cabac_init_idc = atoi(value); |
| OPT("interlaced") |
| p->b_interlaced = 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("direct-8x8") |
| p->analyse.i_direct_8x8_inference = atoi(value); |
| 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("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; |
| } |
| 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("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); |
| 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( i_level <= h->param.i_log_level ) |
| { |
| va_list arg; |
| va_start( arg, psz_fmt ); |
| 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: |
| ****************************************************************************/ |
| void 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 ); |
| 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; |
| } |
| |
| /**************************************************************************** |
| * 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( void *p_data, int *pi_data, int b_annexeb, x264_nal_t *nal ) |
| { |
| uint8_t *dst = p_data; |
| uint8_t *src = nal->p_payload; |
| uint8_t *end = &nal->p_payload[nal->i_payload]; |
| int i_count = 0; |
| |
| /* FIXME this code doesn't check overflow */ |
| |
| if( b_annexeb ) |
| { |
| /* long nal start code (we always use long ones)*/ |
| *dst++ = 0x00; |
| *dst++ = 0x00; |
| *dst++ = 0x00; |
| *dst++ = 0x01; |
| } |
| |
| /* 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++; |
| } |
| *pi_data = dst - (uint8_t*)p_data; |
| |
| return *pi_data; |
| } |
| |
| |
| |
| /**************************************************************************** |
| * x264_malloc: |
| ****************************************************************************/ |
| void *x264_malloc( int i_size ) |
| { |
| #ifdef SYS_MACOSX |
| /* Mac OS X always returns 16 bytes aligned memory */ |
| return malloc( i_size ); |
| #elif defined( HAVE_MALLOC_H ) |
| return memalign( 16, i_size ); |
| #else |
| uint8_t * buf; |
| uint8_t * align_buf; |
| buf = (uint8_t *) malloc( i_size + 15 + sizeof( void ** ) + |
| sizeof( int ) ); |
| align_buf = buf + 15 + sizeof( void ** ) + sizeof( int ); |
| align_buf -= (long) align_buf & 15; |
| *( (void **) ( align_buf - sizeof( void ** ) ) ) = buf; |
| *( (int *) ( align_buf - sizeof( void ** ) - sizeof( int ) ) ) = i_size; |
| return align_buf; |
| #endif |
| } |
| |
| /**************************************************************************** |
| * 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_realloc: |
| ****************************************************************************/ |
| void *x264_realloc( void *p, int i_size ) |
| { |
| #ifdef HAVE_MALLOC_H |
| return realloc( p, i_size ); |
| #else |
| int i_old_size = 0; |
| uint8_t * p_new; |
| if( p ) |
| { |
| i_old_size = *( (int*) ( (uint8_t*) p - sizeof( void ** ) - |
| sizeof( int ) ) ); |
| } |
| p_new = x264_malloc( i_size ); |
| if( i_old_size > 0 && i_size > 0 ) |
| { |
| memcpy( p_new, p, ( i_old_size < i_size ) ? i_old_size : i_size ); |
| } |
| x264_free( p ); |
| return p_new; |
| #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( 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_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 ); |
| 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, " 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%s", |
| p->i_keyint_max, p->i_keyint_min, p->i_scenecut_threshold, |
| p->b_pre_scenecut ? "(pre)" : "" ); |
| |
| s += sprintf( s, " rc=%s", 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" ); |
| 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 ) |
| 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; |
| } |
| |
