diff options
Diffstat (limited to 'contrib/ffmpeg/libavcodec/opt.c')
| -rw-r--r-- | contrib/ffmpeg/libavcodec/opt.c | 389 |
1 files changed, 0 insertions, 389 deletions
diff --git a/contrib/ffmpeg/libavcodec/opt.c b/contrib/ffmpeg/libavcodec/opt.c deleted file mode 100644 index 97b593cb2..000000000 --- a/contrib/ffmpeg/libavcodec/opt.c +++ /dev/null @@ -1,389 +0,0 @@ -/* - * AVOptions - * Copyright (c) 2005 Michael Niedermayer <michaelni@gmx.at> - * - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg 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 - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - * - */ - -/** - * @file opt.c - * AVOptions - * @author Michael Niedermayer <michaelni@gmx.at> - */ - -#include "avcodec.h" -#include "opt.h" -#include "eval.h" - -//FIXME order them and do a bin search -const AVOption *av_find_opt(void *v, const char *name, const char *unit, int mask, int flags){ - AVClass *c= *(AVClass**)v; //FIXME silly way of storing AVClass - const AVOption *o= c->option; - - for(;o && o->name; o++){ - if(!strcmp(o->name, name) && (!unit || (o->unit && !strcmp(o->unit, unit))) && (o->flags & mask) == flags ) - return o; - } - return NULL; -} - -const AVOption *av_next_option(void *obj, const AVOption *last){ - if(last && last[1].name) return ++last; - else if(last) return NULL; - else return (*(AVClass**)obj)->option; -} - -static const AVOption *av_set_number(void *obj, const char *name, double num, int den, int64_t intnum){ - const AVOption *o= av_find_opt(obj, name, NULL, 0, 0); - void *dst; - if(!o || o->offset<=0) - return NULL; - - if(o->max*den < num*intnum || o->min*den > num*intnum) { - av_log(NULL, AV_LOG_ERROR, "Value %lf for parameter '%s' out of range.\n", num, name); - return NULL; - } - - dst= ((uint8_t*)obj) + o->offset; - - switch(o->type){ - case FF_OPT_TYPE_FLAGS: - case FF_OPT_TYPE_INT: *(int *)dst= lrintf(num/den)*intnum; break; - case FF_OPT_TYPE_INT64: *(int64_t *)dst= lrintf(num/den)*intnum; break; - case FF_OPT_TYPE_FLOAT: *(float *)dst= num*intnum/den; break; - case FF_OPT_TYPE_DOUBLE:*(double *)dst= num*intnum/den; break; - case FF_OPT_TYPE_RATIONAL: - if((int)num == num) *(AVRational*)dst= (AVRational){num*intnum, den}; - else *(AVRational*)dst= av_d2q(num*intnum/den, 1<<24); - default: - return NULL; - } - return o; -} - -static const AVOption *set_all_opt(void *v, const char *unit, double d){ - AVClass *c= *(AVClass**)v; //FIXME silly way of storing AVClass - const AVOption *o= c->option; - const AVOption *ret=NULL; - - for(;o && o->name; o++){ - if(o->type != FF_OPT_TYPE_CONST && o->unit && !strcmp(o->unit, unit)){ - double tmp= d; - if(o->type == FF_OPT_TYPE_FLAGS) - tmp= av_get_int(v, o->name, NULL) | (int64_t)d; - - av_set_number(v, o->name, tmp, 1, 1); - ret= o; - } - } - return ret; -} - -static double const_values[]={ - M_PI, - M_E, - FF_QP2LAMBDA, - 0 -}; - -static const char *const_names[]={ - "PI", - "E", - "QP2LAMBDA", - 0 -}; - -const AVOption *av_set_string(void *obj, const char *name, const char *val){ - const AVOption *o= av_find_opt(obj, name, NULL, 0, 0); - if(o && o->offset==0 && o->type == FF_OPT_TYPE_CONST && o->unit){ - return set_all_opt(obj, o->unit, o->default_val); - } - if(!o || !val || o->offset<=0) - return NULL; - if(o->type != FF_OPT_TYPE_STRING){ - for(;;){ - int i; - char buf[256]; - int cmd=0; - double d; - char *error = NULL; - - if(*val == '+' || *val == '-') - cmd= *(val++); - - for(i=0; i<sizeof(buf)-1 && val[i] && val[i]!='+' && val[i]!='-'; i++) - buf[i]= val[i]; - buf[i]=0; - val+= i; - - d = ff_eval2(buf, const_values, const_names, NULL, NULL, NULL, NULL, NULL, &error); - if(isnan(d)) { - const AVOption *o_named= av_find_opt(obj, buf, o->unit, 0, 0); - if(o_named && o_named->type == FF_OPT_TYPE_CONST) - d= o_named->default_val; - else if(!strcmp(buf, "default")) d= o->default_val; - else if(!strcmp(buf, "max" )) d= o->max; - else if(!strcmp(buf, "min" )) d= o->min; - else if(!strcmp(buf, "none" )) d= 0; - else if(!strcmp(buf, "all" )) d= ~0; - else { - if (!error) - av_log(NULL, AV_LOG_ERROR, "Unable to parse option value \"%s\": %s\n", val, error); - return NULL; - } - } - if(o->type == FF_OPT_TYPE_FLAGS){ - if (cmd=='+') d= av_get_int(obj, name, NULL) | (int64_t)d; - else if(cmd=='-') d= av_get_int(obj, name, NULL) &~(int64_t)d; - }else if(cmd=='-') - d= -d; - - av_set_number(obj, name, d, 1, 1); - if(!*val) - return o; - } - return NULL; - } - - memcpy(((uint8_t*)obj) + o->offset, val, sizeof(val)); - return o; -} - -const AVOption *av_set_double(void *obj, const char *name, double n){ - return av_set_number(obj, name, n, 1, 1); -} - -const AVOption *av_set_q(void *obj, const char *name, AVRational n){ - return av_set_number(obj, name, n.num, n.den, 1); -} - -const AVOption *av_set_int(void *obj, const char *name, int64_t n){ - return av_set_number(obj, name, 1, 1, n); -} - -/** - * - * @param buf a buffer which is used for returning non string values as strings, can be NULL - * @param buf_len allocated length in bytes of buf - */ -const char *av_get_string(void *obj, const char *name, const AVOption **o_out, char *buf, int buf_len){ - const AVOption *o= av_find_opt(obj, name, NULL, 0, 0); - void *dst; - if(!o || o->offset<=0) - return NULL; - if(o->type != FF_OPT_TYPE_STRING && (!buf || !buf_len)) - return NULL; - - dst= ((uint8_t*)obj) + o->offset; - if(o_out) *o_out= o; - - if(o->type == FF_OPT_TYPE_STRING) - return dst; - - switch(o->type){ - case FF_OPT_TYPE_FLAGS: snprintf(buf, buf_len, "0x%08X",*(int *)dst);break; - case FF_OPT_TYPE_INT: snprintf(buf, buf_len, "%d" , *(int *)dst);break; - case FF_OPT_TYPE_INT64: snprintf(buf, buf_len, "%"PRId64, *(int64_t*)dst);break; - case FF_OPT_TYPE_FLOAT: snprintf(buf, buf_len, "%f" , *(float *)dst);break; - case FF_OPT_TYPE_DOUBLE: snprintf(buf, buf_len, "%f" , *(double *)dst);break; - case FF_OPT_TYPE_RATIONAL: snprintf(buf, buf_len, "%d/%d", ((AVRational*)dst)->num, ((AVRational*)dst)->den);break; - default: return NULL; - } - return buf; -} - -static int av_get_number(void *obj, const char *name, const AVOption **o_out, double *num, int *den, int64_t *intnum){ - const AVOption *o= av_find_opt(obj, name, NULL, 0, 0); - void *dst; - if(!o || o->offset<=0) - goto error; - - dst= ((uint8_t*)obj) + o->offset; - - if(o_out) *o_out= o; - - switch(o->type){ - case FF_OPT_TYPE_FLAGS: - case FF_OPT_TYPE_INT: *intnum= *(int *)dst;return 0; - case FF_OPT_TYPE_INT64: *intnum= *(int64_t*)dst;return 0; - case FF_OPT_TYPE_FLOAT: *num= *(float *)dst;return 0; - case FF_OPT_TYPE_DOUBLE: *num= *(double *)dst;return 0; - case FF_OPT_TYPE_RATIONAL: *intnum= ((AVRational*)dst)->num; - *den = ((AVRational*)dst)->den; - return 0; - } -error: - *den=*intnum=0; - return -1; -} - -double av_get_double(void *obj, const char *name, const AVOption **o_out){ - int64_t intnum=1; - double num=1; - int den=1; - - av_get_number(obj, name, o_out, &num, &den, &intnum); - return num*intnum/den; -} - -AVRational av_get_q(void *obj, const char *name, const AVOption **o_out){ - int64_t intnum=1; - double num=1; - int den=1; - - av_get_number(obj, name, o_out, &num, &den, &intnum); - if(num == 1.0 && (int)intnum == intnum) - return (AVRational){intnum, den}; - else - return av_d2q(num*intnum/den, 1<<24); -} - -int64_t av_get_int(void *obj, const char *name, const AVOption **o_out){ - int64_t intnum=1; - double num=1; - int den=1; - - av_get_number(obj, name, o_out, &num, &den, &intnum); - return num*intnum/den; -} - -static void opt_list(void *obj, void *av_log_obj, const char *unit) -{ - const AVOption *opt=NULL; - - while((opt= av_next_option(obj, opt))){ - if(!(opt->flags & (AV_OPT_FLAG_ENCODING_PARAM|AV_OPT_FLAG_DECODING_PARAM))) - continue; - - /* Don't print CONST's on level one. - * Don't print anything but CONST's on level two. - * Only print items from the requested unit. - */ - if (!unit && opt->type==FF_OPT_TYPE_CONST) - continue; - else if (unit && opt->type!=FF_OPT_TYPE_CONST) - continue; - else if (unit && opt->type==FF_OPT_TYPE_CONST && strcmp(unit, opt->unit)) - continue; - else if (unit && opt->type == FF_OPT_TYPE_CONST) - av_log(av_log_obj, AV_LOG_INFO, " %-15s ", opt->name); - else - av_log(av_log_obj, AV_LOG_INFO, "-%-17s ", opt->name); - - switch( opt->type ) - { - case FF_OPT_TYPE_FLAGS: - av_log( av_log_obj, AV_LOG_INFO, "%-7s ", "<flags>" ); - break; - case FF_OPT_TYPE_INT: - av_log( av_log_obj, AV_LOG_INFO, "%-7s ", "<int>" ); - break; - case FF_OPT_TYPE_INT64: - av_log( av_log_obj, AV_LOG_INFO, "%-7s ", "<int64>" ); - break; - case FF_OPT_TYPE_DOUBLE: - av_log( av_log_obj, AV_LOG_INFO, "%-7s ", "<double>" ); - break; - case FF_OPT_TYPE_FLOAT: - av_log( av_log_obj, AV_LOG_INFO, "%-7s ", "<float>" ); - break; - case FF_OPT_TYPE_STRING: - av_log( av_log_obj, AV_LOG_INFO, "%-7s ", "<string>" ); - break; - case FF_OPT_TYPE_RATIONAL: - av_log( av_log_obj, AV_LOG_INFO, "%-7s ", "<rational>" ); - break; - case FF_OPT_TYPE_CONST: - default: - av_log( av_log_obj, AV_LOG_INFO, "%-7s ", "" ); - break; - } - av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_ENCODING_PARAM) ? 'E' : '.'); - av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_DECODING_PARAM) ? 'D' : '.'); - av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_VIDEO_PARAM ) ? 'V' : '.'); - av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_AUDIO_PARAM ) ? 'A' : '.'); - av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_SUBTITLE_PARAM) ? 'S' : '.'); - - if(opt->help) - av_log(av_log_obj, AV_LOG_INFO, " %s", opt->help); - av_log(av_log_obj, AV_LOG_INFO, "\n"); - if (opt->unit && opt->type != FF_OPT_TYPE_CONST) { - opt_list(obj, av_log_obj, opt->unit); - } - } -} - -int av_opt_show(void *obj, void *av_log_obj){ - if(!obj) - return -1; - - av_log(av_log_obj, AV_LOG_INFO, "%s AVOptions:\n", (*(AVClass**)obj)->class_name); - - opt_list(obj, av_log_obj, NULL); - - return 0; -} - -/** Set the values of the AVCodecContext or AVFormatContext structure. - * They are set to the defaults specified in the according AVOption options - * array default_val field. - * - * @param s AVCodecContext or AVFormatContext for which the defaults will be set - */ -void av_opt_set_defaults2(void *s, int mask, int flags) -{ - const AVOption *opt = NULL; - while ((opt = av_next_option(s, opt)) != NULL) { - if((opt->flags & mask) != flags) - continue; - switch(opt->type) { - case FF_OPT_TYPE_CONST: - /* Nothing to be done here */ - break; - case FF_OPT_TYPE_FLAGS: - case FF_OPT_TYPE_INT: { - int val; - val = opt->default_val; - av_set_int(s, opt->name, val); - } - break; - case FF_OPT_TYPE_FLOAT: { - double val; - val = opt->default_val; - av_set_double(s, opt->name, val); - } - break; - case FF_OPT_TYPE_RATIONAL: { - AVRational val; - val = av_d2q(opt->default_val, INT_MAX); - av_set_q(s, opt->name, val); - } - break; - case FF_OPT_TYPE_STRING: - /* Cannot set default for string as default_val is of type * double */ - break; - default: - av_log(s, AV_LOG_DEBUG, "AVOption type %d of option %s not implemented yet\n", opt->type, opt->name); - } - } -} - -void av_opt_set_defaults(void *s){ - av_opt_set_defaults2(s, 0, 0); -} - |