/***************************************************************************** * common.c: h264 library ***************************************************************************** * Copyright (C) 2003 Laurent Aimar * $Id: common.c,v 1.1 2004/06/03 19:27:06 fenrir Exp $ * * Authors: Laurent Aimar * * 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., 59 Temple Place - Suite 330, Boston, MA 02111, USA. *****************************************************************************/ #include #include #ifdef HAVE_MALLOC_H #include #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 = 51; /* as close to "unrestricted" as we can get */ /* 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->b_bframe_adaptive = 1; 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_GLOBAL; 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.psz_rc_eq = "blurCplx^(1-qComp)"; 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.i_me_range = 16; param->analyse.i_subpel_refine = 5; 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; // set from level_idc 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->b_bframe_adaptive = atobool(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 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("bime") p->analyse.b_bidir_me = atobool(value); OPT("chroma-me") p->analyse.b_chroma_me = atobool(value); OPT2("b-rdo", "brdo") p->analyse.b_bframe_rdo = 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("rceq") p->rc.psz_rc_eq = 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_nal_decode: ****************************************************************************/ int x264_nal_decode( x264_nal_t *nal, void *p_data, int i_data ) { uint8_t *src = p_data; uint8_t *end = &src[i_data]; uint8_t *dst = nal->p_payload; nal->i_type = src[0]&0x1f; nal->i_ref_idc = (src[0] >> 5)&0x03; src++; while( src < end ) { if( src < end - 3 && src[0] == 0x00 && src[1] == 0x00 && src[2] == 0x03 ) { *dst++ = 0x00; *dst++ = 0x00; src += 3; continue; } *dst++ = *src++; } nal->i_payload = dst - (uint8_t*)p_data; return 0; } /**************************************************************************** * 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, " brdo=%d", p->analyse.b_bframe_rdo ); 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 bime=%d", p->b_bframe_pyramid, p->b_bframe_adaptive, p->i_bframe_bias, p->analyse.i_direct_mv_pred, p->analyse.b_weighted_bipred, p->analyse.b_bidir_me ); } 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, " rceq='%s' qcomp=%.2f qpmin=%d qpmax=%d qpstep=%d", p->rc.psz_rc_eq, 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; }