X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fopt.c;h=a6abcfc2e7d8ad40b89fb8536bfa18cdc44a2f82;hb=f9310cbb2fcfcd9e41cafb3789c3b7ae3b90dbf4;hp=fc8f28462bc0f5cd83b3dfa5d4a2f4955c67e1f8;hpb=c44a131dc70620b443fd4cf10bd1aa26c59ebcbe;p=ffmpeg diff --git a/libavcodec/opt.c b/libavcodec/opt.c index fc8f28462bc..a6abcfc2e7d 100644 --- a/libavcodec/opt.c +++ b/libavcodec/opt.c @@ -2,150 +2,241 @@ * AVOptions * Copyright (c) 2005 Michael Niedermayer * - * This library is free software; you can redistribute it and/or + * 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 of the License, or (at your option) any later version. + * version 2.1 of the License, or (at your option) any later version. * - * This library is distributed in the hope that it will be useful, + * 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 this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * + * 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 + * @file libavcodec/opt.c * AVOptions * @author Michael Niedermayer */ - -#include //for FILE * + #include "avcodec.h" - -static double av_parse_num(const char *name, char **tail){ - double d; - d= strtod(name, tail); - if(*tail>name && (**tail=='/' || **tail==':')) - d/=strtod((*tail)+1, tail); - return d; -} +#include "opt.h" +#include "eval.h" //FIXME order them and do a bin search -static AVOption *find_opt(void *v, const char *name){ +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 - AVOption *o= c->option; - + const AVOption *o= c->option; + for(;o && o->name; o++){ - if(!strcmp(o->name, name)) + if(!strcmp(o->name, name) && (!unit || (o->unit && !strcmp(o->unit, unit))) && (o->flags & mask) == flags ) return o; } return NULL; } -AVOption *av_next_option(void *obj, AVOption *last){ +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 AVOption *av_set_number(void *obj, const char *name, double num, int den, int64_t intnum){ - AVOption *o= find_opt(obj, name); +static int av_set_number2(void *obj, const char *name, double num, int den, int64_t intnum, const AVOption **o_out){ + 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) - return NULL; - + if(o_out) + *o_out= o; + if(!o || o->offset<=0) + return AVERROR(ENOENT); + + if(o->max*den < num*intnum || o->min*den > num*intnum) { + av_log(obj, AV_LOG_ERROR, "Value %lf for parameter '%s' out of range\n", num, name); + return AVERROR(ERANGE); + } + 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_FLAGS: + case FF_OPT_TYPE_INT: *(int *)dst= llrint(num/den)*intnum; break; + case FF_OPT_TYPE_INT64: *(int64_t *)dst= llrint(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); + break; default: - return NULL; + return AVERROR(EINVAL); } - return o; + return 0; } -//FIXME use eval.c maybe? -AVOption *av_set_string(void *obj, const char *name, const char *val){ - AVOption *o= find_opt(obj, name); - if(!o || !val || o->offset<=0) +static const AVOption *av_set_number(void *obj, const char *name, double num, int den, int64_t intnum){ + const AVOption *o = NULL; + if (av_set_number2(obj, name, num, den, intnum, &o) < 0) return NULL; + else + return o; +} + +static const double const_values[]={ + M_PI, + M_E, + FF_QP2LAMBDA, + 0 +}; + +static const char * const const_names[]={ + "PI", + "E", + "QP2LAMBDA", + 0 +}; + +static int hexchar2int(char c) { + if (c >= '0' && c <= '9') return c - '0'; + if (c >= 'a' && c <= 'f') return c - 'a' + 10; + if (c >= 'A' && c <= 'F') return c - 'A' + 10; + return -1; +} + +int av_set_string3(void *obj, const char *name, const char *val, int alloc, const AVOption **o_out){ + int ret; + const AVOption *o= av_find_opt(obj, name, NULL, 0, 0); + if (o_out) + *o_out = o; + if(!o) + return AVERROR(ENOENT); + if(!val || o->offset<=0) + return AVERROR(EINVAL); + + if(o->type == FF_OPT_TYPE_BINARY){ + uint8_t **dst = (uint8_t **)(((uint8_t*)obj) + o->offset); + int *lendst = (int *)(dst + 1); + uint8_t *bin, *ptr; + int len = strlen(val); + av_freep(dst); + *lendst = 0; + if (len & 1) return AVERROR(EINVAL); + len /= 2; + ptr = bin = av_malloc(len); + while (*val) { + int a = hexchar2int(*val++); + int b = hexchar2int(*val++); + if (a < 0 || b < 0) { + av_free(bin); + return AVERROR(EINVAL); + } + *ptr++ = (a << 4) | b; + } + *dst = bin; + *lendst = len; + return 0; + } if(o->type != FF_OPT_TYPE_STRING){ + int notfirst=0; for(;;){ int i; - char buf[256], *tail; + char buf[256]; int cmd=0; double d; + const char *error = NULL; if(*val == '+' || *val == '-') cmd= *(val++); - + for(i=0; itype == FF_OPT_TYPE_CONST && !strcmp(o_named->unit, o->unit)) + + 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 return NULL; + else if(!strcmp(buf, "none" )) d= 0; + else if(!strcmp(buf, "all" )) d= ~0; + else { + if (error) + av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\": %s\n", val, error); + return AVERROR(EINVAL); + } } 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; + }else{ + if (cmd=='+') d= notfirst*av_get_double(obj, name, NULL) + d; + else if(cmd=='-') d= notfirst*av_get_double(obj, name, NULL) - d; + } - av_set_number(obj, name, d, 1, 1); + if ((ret = av_set_number2(obj, name, d, 1, 1, o_out)) < 0) + return ret; + val+= i; if(!*val) - return o; + return 0; + notfirst=1; } - return NULL; + return AVERROR(EINVAL); } - - memcpy(((uint8_t*)obj) + o->offset, val, sizeof(val)); + + if(alloc){ + av_free(*(void**)(((uint8_t*)obj) + o->offset)); + val= av_strdup(val); + } + + memcpy(((uint8_t*)obj) + o->offset, &val, sizeof(val)); + return 0; +} + +#if LIBAVCODEC_VERSION_MAJOR < 53 +const AVOption *av_set_string2(void *obj, const char *name, const char *val, int alloc){ + const AVOption *o; + if (av_set_string3(obj, name, val, alloc, &o) < 0) + return NULL; + return o; +} + +const AVOption *av_set_string(void *obj, const char *name, const char *val){ + const AVOption *o; + if (av_set_string3(obj, name, val, 0, &o) < 0) + return NULL; return o; } +#endif -AVOption *av_set_double(void *obj, const char *name, double n){ +const AVOption *av_set_double(void *obj, const char *name, double n){ return av_set_number(obj, name, n, 1, 1); } -AVOption *av_set_q(void *obj, const char *name, AVRational n){ +const AVOption *av_set_q(void *obj, const char *name, AVRational n){ return av_set_number(obj, name, n.num, n.den, 1); } -AVOption *av_set_int(void *obj, const char *name, int64_t n){ +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, AVOption **o_out, char *buf, int buf_len){ - AVOption *o= find_opt(obj, name); +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; + uint8_t *bin; + int len, i; if(!o || o->offset<=0) return NULL; if(o->type != FF_OPT_TYPE_STRING && (!buf || !buf_len)) @@ -153,24 +244,28 @@ const char *av_get_string(void *obj, const char *name, AVOption **o_out, char *b 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, "%Ld", *(int64_t*)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; + case FF_OPT_TYPE_STRING: return *(void**)dst; + case FF_OPT_TYPE_BINARY: + len = *(int*)(((uint8_t *)dst) + sizeof(uint8_t *)); + if(len >= (buf_len + 1)/2) return NULL; + bin = *(uint8_t**)dst; + for(i = 0; i < len; i++) snprintf(buf + i*2, 3, "%02X", bin[i]); + break; default: return NULL; } return buf; } -static int av_get_number(void *obj, const char *name, AVOption **o_out, double *num, int *den, int64_t *intnum){ - AVOption *o= find_opt(obj, name); +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; @@ -180,12 +275,12 @@ static int av_get_number(void *obj, const char *name, AVOption **o_out, double * if(o_out) *o_out= o; switch(o->type){ - case FF_OPT_TYPE_FLAGS: + case FF_OPT_TYPE_FLAGS: *intnum= *(unsigned int*)dst;return 0; 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; + case FF_OPT_TYPE_RATIONAL: *intnum= ((AVRational*)dst)->num; *den = ((AVRational*)dst)->den; return 0; } @@ -194,7 +289,7 @@ error: return -1; } -double av_get_double(void *obj, const char *name, AVOption **o_out){ +double av_get_double(void *obj, const char *name, const AVOption **o_out){ int64_t intnum=1; double num=1; int den=1; @@ -203,7 +298,7 @@ double av_get_double(void *obj, const char *name, AVOption **o_out){ return num*intnum/den; } -AVRational av_get_q(void *obj, const char *name, AVOption **o_out){ +AVRational av_get_q(void *obj, const char *name, const AVOption **o_out){ int64_t intnum=1; double num=1; int den=1; @@ -215,7 +310,7 @@ AVRational av_get_q(void *obj, const char *name, AVOption **o_out){ return av_d2q(num*intnum/den, 1<<24); } -int64_t av_get_int(void *obj, const char *name, AVOption **o_out){ +int64_t av_get_int(void *obj, const char *name, const AVOption **o_out){ int64_t intnum=1; double num=1; int den=1; @@ -224,26 +319,137 @@ int64_t av_get_int(void *obj, const char *name, AVOption **o_out){ return num*intnum/den; } -int av_opt_show(void *obj, FILE *f){ - AVOption *opt=NULL; - - if(!obj) - return -1; -#undef fprintf - fprintf(f, "%s AVOptions:\n", (*(AVClass**)obj)->class_name); +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; - - fprintf(f, "-%-17s ", opt->name); - fprintf(f, "%c", (opt->flags & AV_OPT_FLAG_ENCODING_PARAM) ? 'E' : '.'); - fprintf(f, "%c", (opt->flags & AV_OPT_FLAG_DECODING_PARAM) ? 'D' : '.'); - fprintf(f, "%c", (opt->flags & AV_OPT_FLAG_VIDEO_PARAM ) ? 'V' : '.'); - fprintf(f, "%c", (opt->flags & AV_OPT_FLAG_AUDIO_PARAM ) ? 'A' : '.'); - fprintf(f, "%c", (opt->flags & AV_OPT_FLAG_SUBTITLE_PARAM) ? 'S' : '.'); - - fprintf(f, " %s\n", opt->help); + + /* 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 ", "" ); + break; + case FF_OPT_TYPE_INT: + av_log( av_log_obj, AV_LOG_INFO, "%-7s ", "" ); + break; + case FF_OPT_TYPE_INT64: + av_log( av_log_obj, AV_LOG_INFO, "%-7s ", "" ); + break; + case FF_OPT_TYPE_DOUBLE: + av_log( av_log_obj, AV_LOG_INFO, "%-7s ", "" ); + break; + case FF_OPT_TYPE_FLOAT: + av_log( av_log_obj, AV_LOG_INFO, "%-7s ", "" ); + break; + case FF_OPT_TYPE_STRING: + av_log( av_log_obj, AV_LOG_INFO, "%-7s ", "" ); + break; + case FF_OPT_TYPE_RATIONAL: + av_log( av_log_obj, AV_LOG_INFO, "%-7s ", "" ); + break; + case FF_OPT_TYPE_BINARY: + av_log( av_log_obj, AV_LOG_INFO, "%-7s ", "" ); + 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_INT64: + if((double)(opt->default_val+0.6) == opt->default_val) + av_log(s, AV_LOG_DEBUG, "loss of precission in default of %s\n", opt->name); + av_set_int(s, opt->name, opt->default_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: + case FF_OPT_TYPE_BINARY: + /* 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); +} +