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ffmpeg-mt
Commit 0aaffc47 authored by michael's avatar michael
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AVOption API improvments 

support AVOptions for encoding in ffmpeg.c


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@4580 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b
parent 9b9651ca
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Showing with 283 additions and 169 deletions
cmdutils.c
View file @ 0aaffc47
...@@ -45,6 +45,15 @@ void show_help_options(const OptionDef *options, const char *msg, int mask, int ...@@ -45,6 +45,15 @@ void show_help_options(const OptionDef *options, const char *msg, int mask, int
} }
} }
static OptionDef* find_option(const OptionDef *po, const char *name){
while (po->name != NULL) {
if (!strcmp(name, po->name))
break;
po++;
}
return po;
}
void parse_options(int argc, char **argv, const OptionDef *options) void parse_options(int argc, char **argv, const OptionDef *options)
{ {
const char *opt, *arg; const char *opt, *arg;
...@@ -57,13 +66,11 @@ void parse_options(int argc, char **argv, const OptionDef *options) ...@@ -57,13 +66,11 @@ void parse_options(int argc, char **argv, const OptionDef *options)
opt = argv[optindex++]; opt = argv[optindex++];
if (opt[0] == '-' && opt[1] != '\0') { if (opt[0] == '-' && opt[1] != '\0') {
po = options; po= find_option(options, opt + 1);
while (po->name != NULL) { if (!po->name)
if (!strcmp(opt + 1, po->name)) po= find_option(options, "default");
break;
po++;
}
if (!po->name) { if (!po->name) {
unknown_opt:
fprintf(stderr, "%s: unrecognized option '%s'\n", argv[0], opt); fprintf(stderr, "%s: unrecognized option '%s'\n", argv[0], opt);
exit(1); exit(1);
} }
...@@ -85,6 +92,9 @@ void parse_options(int argc, char **argv, const OptionDef *options) ...@@ -85,6 +92,9 @@ void parse_options(int argc, char **argv, const OptionDef *options)
*po->u.int_arg = atoi(arg); *po->u.int_arg = atoi(arg);
} else if (po->flags & OPT_FLOAT) { } else if (po->flags & OPT_FLOAT) {
*po->u.float_arg = atof(arg); *po->u.float_arg = atof(arg);
} else if (po->flags & OPT_FUNC2) {
if(po->u.func2_arg(opt+1, arg)<0)
goto unknown_opt;
} else { } else {
po->u.func_arg(arg); po->u.func_arg(arg);
} }
......
cmdutils.h
View file @ 0aaffc47
...@@ -14,11 +14,13 @@ typedef struct { ...@@ -14,11 +14,13 @@ typedef struct {
#define OPT_INT 0x0080 #define OPT_INT 0x0080
#define OPT_FLOAT 0x0100 #define OPT_FLOAT 0x0100
#define OPT_SUBTITLE 0x0200 #define OPT_SUBTITLE 0x0200
#define OPT_FUNC2 0x0400
union { union {
void (*func_arg)(const char *); void (*func_arg)(const char *); //FIXME passing error code as int return would be nicer then exit() in the func
int *int_arg; int *int_arg;
char **str_arg; char **str_arg;
float *float_arg; float *float_arg;
int (*func2_arg)(const char *, const char *);
} u; } u;
const char *help; const char *help;
const char *argname; const char *argname;
......
ffmpeg.c
View file @ 0aaffc47
...@@ -111,8 +111,6 @@ static int video_lmax = 31*FF_QP2LAMBDA; ...@@ -111,8 +111,6 @@ static int video_lmax = 31*FF_QP2LAMBDA;
static int video_mb_lmin = 2*FF_QP2LAMBDA; static int video_mb_lmin = 2*FF_QP2LAMBDA;
static int video_mb_lmax = 31*FF_QP2LAMBDA; static int video_mb_lmax = 31*FF_QP2LAMBDA;
static int video_qdiff = 3; static int video_qdiff = 3;
static int video_lelim = 0;
static int video_celim = 0;
static float video_qblur = 0.5; static float video_qblur = 0.5;
static float video_qsquish = 0.0; static float video_qsquish = 0.0;
static float video_qcomp = 0.5; static float video_qcomp = 0.5;
...@@ -291,6 +289,10 @@ static int limit_filesize = 0; // ...@@ -291,6 +289,10 @@ static int limit_filesize = 0; //
static int pgmyuv_compatibility_hack=0; static int pgmyuv_compatibility_hack=0;
const char **opt_names=NULL;
int opt_name_count=0;
AVCodecContext *avctx_opts;
#define DEFAULT_PASS_LOGFILENAME "ffmpeg2pass" #define DEFAULT_PASS_LOGFILENAME "ffmpeg2pass"
...@@ -2638,26 +2640,6 @@ static void opt_qsquish(const char *arg) ...@@ -2638,26 +2640,6 @@ static void opt_qsquish(const char *arg)
} }
} }
static void opt_lelim(const char *arg)
{
video_lelim = atoi(arg);
if (video_lelim < -99 ||
video_lelim > 99) {
fprintf(stderr, "lelim must be >= -99 and <= 99\n");
exit(1);
}
}
static void opt_celim(const char *arg)
{
video_celim = atoi(arg);
if (video_celim < -99 ||
video_celim > 99) {
fprintf(stderr, "celim must be >= -99 and <= 99\n");
exit(1);
}
}
static void opt_lmax(const char *arg) static void opt_lmax(const char *arg)
{ {
video_lmax = atof(arg)*FF_QP2LAMBDA; video_lmax = atof(arg)*FF_QP2LAMBDA;
...@@ -3237,6 +3219,13 @@ static void new_video_stream(AVFormatContext *oc) ...@@ -3237,6 +3219,13 @@ static void new_video_stream(AVFormatContext *oc)
video_enc->codec_id = codec_id; video_enc->codec_id = codec_id;
codec = avcodec_find_encoder(codec_id); codec = avcodec_find_encoder(codec_id);
for(i=0; i<opt_name_count; i++){
AVOption *opt;
double d= av_get_double(avctx_opts, opt_names[i], &opt);
if(d==d && (opt->flags&AV_OPT_FLAG_VIDEO_PARAM) && (opt->flags&AV_OPT_FLAG_ENCODING_PARAM))
av_set_double(video_enc, opt_names[i], d);
}
video_enc->bit_rate = video_bit_rate; video_enc->bit_rate = video_bit_rate;
video_enc->bit_rate_tolerance = video_bit_rate_tolerance; video_enc->bit_rate_tolerance = video_bit_rate_tolerance;
...@@ -3383,8 +3372,6 @@ static void new_video_stream(AVFormatContext *oc) ...@@ -3383,8 +3372,6 @@ static void new_video_stream(AVFormatContext *oc)
video_enc->lmin = video_lmin; video_enc->lmin = video_lmin;
video_enc->lmax = video_lmax; video_enc->lmax = video_lmax;
video_enc->rc_qsquish = video_qsquish; video_enc->rc_qsquish = video_qsquish;
video_enc->luma_elim_threshold = video_lelim;
video_enc->chroma_elim_threshold = video_celim;
video_enc->mb_lmin = video_mb_lmin; video_enc->mb_lmin = video_mb_lmin;
video_enc->mb_lmax = video_mb_lmax; video_enc->mb_lmax = video_mb_lmax;
video_enc->max_qdiff = video_qdiff; video_enc->max_qdiff = video_qdiff;
...@@ -3486,7 +3473,7 @@ static void new_audio_stream(AVFormatContext *oc) ...@@ -3486,7 +3473,7 @@ static void new_audio_stream(AVFormatContext *oc)
{ {
AVStream *st; AVStream *st;
AVCodecContext *audio_enc; AVCodecContext *audio_enc;
int codec_id; int codec_id, i;
st = av_new_stream(oc, oc->nb_streams); st = av_new_stream(oc, oc->nb_streams);
if (!st) { if (!st) {
...@@ -3511,6 +3498,14 @@ static void new_audio_stream(AVFormatContext *oc) ...@@ -3511,6 +3498,14 @@ static void new_audio_stream(AVFormatContext *oc)
audio_enc->channels = audio_channels; audio_enc->channels = audio_channels;
} else { } else {
codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, CODEC_TYPE_AUDIO); codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, CODEC_TYPE_AUDIO);
for(i=0; i<opt_name_count; i++){
AVOption *opt;
double d= av_get_double(avctx_opts, opt_names[i], &opt);
if(d==d && (opt->flags&AV_OPT_FLAG_AUDIO_PARAM) && (opt->flags&AV_OPT_FLAG_ENCODING_PARAM))
av_set_double(audio_enc, opt_names[i], d);
}
if (audio_codec_id != CODEC_ID_NONE) if (audio_codec_id != CODEC_ID_NONE)
codec_id = audio_codec_id; codec_id = audio_codec_id;
audio_enc->codec_id = codec_id; audio_enc->codec_id = codec_id;
...@@ -3549,6 +3544,7 @@ static void opt_new_subtitle_stream(void) ...@@ -3549,6 +3544,7 @@ static void opt_new_subtitle_stream(void)
AVFormatContext *oc; AVFormatContext *oc;
AVStream *st; AVStream *st;
AVCodecContext *subtitle_enc; AVCodecContext *subtitle_enc;
int i;
if (nb_output_files <= 0) { if (nb_output_files <= 0) {
fprintf(stderr, "At least one output file must be specified\n"); fprintf(stderr, "At least one output file must be specified\n");
...@@ -3567,6 +3563,12 @@ static void opt_new_subtitle_stream(void) ...@@ -3567,6 +3563,12 @@ static void opt_new_subtitle_stream(void)
if (subtitle_stream_copy) { if (subtitle_stream_copy) {
st->stream_copy = 1; st->stream_copy = 1;
} else { } else {
for(i=0; i<opt_name_count; i++){
AVOption *opt;
double d= av_get_double(avctx_opts, opt_names[i], &opt);
if(d==d && (opt->flags&AV_OPT_FLAG_SUBTITLE_PARAM) && (opt->flags&AV_OPT_FLAG_ENCODING_PARAM))
av_set_double(subtitle_enc, opt_names[i], d);
}
subtitle_enc->codec_id = subtitle_codec_id; subtitle_enc->codec_id = subtitle_codec_id;
} }
...@@ -4190,6 +4192,18 @@ static void show_version(void) ...@@ -4190,6 +4192,18 @@ static void show_version(void)
exit(1); exit(1);
} }
static int opt_default(const char *opt, const char *arg){
AVOption *o= av_set_string(avctx_opts, opt, arg);
if(!o)
return -1;
//FIXME we should always use avctx_opts, ... for storing options so there wont be any need to keep track of whats set over this
opt_names= av_realloc(opt_names, sizeof(void*)*(opt_name_count+1));
opt_names[opt_name_count++]= opt;
return 0;
}
const OptionDef options[] = { const OptionDef options[] = {
/* main options */ /* main options */
{ "L", 0, {(void*)show_license}, "show license" }, { "L", 0, {(void*)show_license}, "show license" },
...@@ -4297,8 +4311,6 @@ const OptionDef options[] = { ...@@ -4297,8 +4311,6 @@ const OptionDef options[] = {
{ "cmp", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_cmp}, "fullpel compare function", "cmp function" }, { "cmp", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_cmp}, "fullpel compare function", "cmp function" },
{ "precmp", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_pre_cmp}, "pre motion estimation compare function", "cmp function" }, { "precmp", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_pre_cmp}, "pre motion estimation compare function", "cmp function" },
{ "preme", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_pre_me}, "pre motion estimation", "" }, { "preme", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_pre_me}, "pre motion estimation", "" },
{ "lelim", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_lelim}, "single coefficient elimination threshold for luminance (negative values also consider DC coefficient)", "elim" },
{ "celim", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_celim}, "single coefficient elimination threshold for chrominance (negative values also consider DC coefficient)", "elim" },
{ "lumi_mask", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_lumi_mask}, "luminance masking", "" }, { "lumi_mask", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_lumi_mask}, "luminance masking", "" },
{ "dark_mask", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_dark_mask}, "darkness masking", "" }, { "dark_mask", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_dark_mask}, "darkness masking", "" },
{ "scplx_mask", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_scplx_mask}, "spatial complexity masking", "" }, { "scplx_mask", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_scplx_mask}, "spatial complexity masking", "" },
...@@ -4398,6 +4410,7 @@ const OptionDef options[] = { ...@@ -4398,6 +4410,7 @@ const OptionDef options[] = {
{ "packetsize", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&mux_packet_size}, "set packet size", "size" }, { "packetsize", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&mux_packet_size}, "set packet size", "size" },
{ "muxdelay", OPT_FLOAT | HAS_ARG | OPT_EXPERT, {(void*)&mux_max_delay}, "set the maximum demux-decode delay", "seconds" }, { "muxdelay", OPT_FLOAT | HAS_ARG | OPT_EXPERT, {(void*)&mux_max_delay}, "set the maximum demux-decode delay", "seconds" },
{ "muxpreload", OPT_FLOAT | HAS_ARG | OPT_EXPERT, {(void*)&mux_preload}, "set the initial demux-decode delay", "seconds" }, { "muxpreload", OPT_FLOAT | HAS_ARG | OPT_EXPERT, {(void*)&mux_preload}, "set the initial demux-decode delay", "seconds" },
{ "default", OPT_FUNC2 | HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
{ NULL, }, { NULL, },
}; };
...@@ -4482,6 +4495,8 @@ static void show_help(void) ...@@ -4482,6 +4495,8 @@ static void show_help(void)
show_help_options(options, "\nAdvanced options:\n", show_help_options(options, "\nAdvanced options:\n",
OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB, OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
OPT_EXPERT); OPT_EXPERT);
av_opt_show(avctx_opts, stdout);
exit(1); exit(1);
} }
...@@ -4496,6 +4511,8 @@ int main(int argc, char **argv) ...@@ -4496,6 +4511,8 @@ int main(int argc, char **argv)
int64_t ti; int64_t ti;
av_register_all(); av_register_all();
avctx_opts= avcodec_alloc_context();
if (argc <= 1) if (argc <= 1)
show_help(); show_help();
......
libavcodec/avcodec.h
View file @ 0aaffc47
...@@ -21,8 +21,8 @@ extern "C" { ...@@ -21,8 +21,8 @@ extern "C" {
#define AV_STRINGIFY(s) AV_TOSTRING(s) #define AV_STRINGIFY(s) AV_TOSTRING(s)
#define AV_TOSTRING(s) #s #define AV_TOSTRING(s) #s
#define LIBAVCODEC_VERSION_INT ((49<<16)+(2<<8)+0) #define LIBAVCODEC_VERSION_INT ((50<<16)+(0<<8)+0)
#define LIBAVCODEC_VERSION 49.2.0 #define LIBAVCODEC_VERSION 50.0.0
#define LIBAVCODEC_BUILD LIBAVCODEC_VERSION_INT #define LIBAVCODEC_BUILD LIBAVCODEC_VERSION_INT
#define LIBAVCODEC_IDENT "Lavc" AV_STRINGIFY(LIBAVCODEC_VERSION) #define LIBAVCODEC_IDENT "Lavc" AV_STRINGIFY(LIBAVCODEC_VERSION)
...@@ -703,6 +703,10 @@ typedef struct AVOption { ...@@ -703,6 +703,10 @@ typedef struct AVOption {
#define AV_OPT_FLAG_ENCODING_PARAM 1 ///< a generic parameter which can be set by the user for muxing or encoding #define AV_OPT_FLAG_ENCODING_PARAM 1 ///< a generic parameter which can be set by the user for muxing or encoding
#define AV_OPT_FLAG_DECODING_PARAM 2 ///< a generic parameter which can be set by the user for demuxing or decoding #define AV_OPT_FLAG_DECODING_PARAM 2 ///< a generic parameter which can be set by the user for demuxing or decoding
#define AV_OPT_FLAG_METADATA 4 ///< some data extracted or inserted into the file like title, comment, ... #define AV_OPT_FLAG_METADATA 4 ///< some data extracted or inserted into the file like title, comment, ...
#define AV_OPT_FLAG_AUDIO_PARAM 8
#define AV_OPT_FLAG_VIDEO_PARAM 16
#define AV_OPT_FLAG_SUBTITLE_PARAM 32
//FIXME think about enc-audio, ... style flags
} AVOption; } AVOption;
/** /**
...@@ -1883,14 +1887,16 @@ typedef struct AVCodecContext { ...@@ -1883,14 +1887,16 @@ typedef struct AVCodecContext {
enum AVDiscard skip_frame; enum AVDiscard skip_frame;
} AVCodecContext; } AVCodecContext;
int av_set_string(void *obj, const char *name, const char *val); AVOption *av_set_string(void *obj, const char *name, const char *val);
int av_set_double(void *obj, const char *name, double n); AVOption *av_set_double(void *obj, const char *name, double n);
int av_set_q(void *obj, const char *name, AVRational n); AVOption *av_set_q(void *obj, const char *name, AVRational n);
int av_set_int(void *obj, const char *name, int64_t n); AVOption *av_set_int(void *obj, const char *name, int64_t n);
const char *av_get_string(void *obj, const char *name); double av_get_double(void *obj, const char *name, AVOption **o_out);
double av_get_double(void *obj, const char *name); AVRational av_get_q(void *obj, const char *name, AVOption **o_out);
int64_t av_get_int(void *obj, const char *name, AVOption **o_out);
const char *av_get_string(void *obj, const char *name, AVOption **o_out, char *buf, int buf_len);
AVOption *av_next_option(void *obj, AVOption *last); AVOption *av_next_option(void *obj, AVOption *last);
int av_opt_show(void *obj, FILE *f);
/** /**
* AVCodec. * AVCodec.
......
libavcodec/opt.c
View file @ 0aaffc47
...@@ -52,46 +52,36 @@ AVOption *av_next_option(void *obj, AVOption *last){ ...@@ -52,46 +52,36 @@ AVOption *av_next_option(void *obj, AVOption *last){
else return (*(AVClass**)obj)->option; else return (*(AVClass**)obj)->option;
} }
static int av_set_number(void *obj, const char *name, double num, int den, int64_t intnum){ static AVOption *av_set_number(void *obj, const char *name, double num, int den, int64_t intnum){
AVOption *o= find_opt(obj, name); AVOption *o= find_opt(obj, name);
void *dst; void *dst;
if(!o || o->offset<=0) if(!o || o->offset<=0)
return -1; return NULL;
if(o->max*den < num*intnum || o->min*den > num*intnum) if(o->max*den < num*intnum || o->min*den > num*intnum)
return -1; return NULL;
dst= ((uint8_t*)obj) + o->offset; dst= ((uint8_t*)obj) + o->offset;
switch(o->type){ switch(o->type){
case FF_OPT_TYPE_INT: case FF_OPT_TYPE_INT: *(int *)dst= lrintf(num/den)*intnum; break;
*(int*)dst= lrintf(num/den)*intnum; case FF_OPT_TYPE_INT64: *(int64_t *)dst= lrintf(num/den)*intnum; break;
break; case FF_OPT_TYPE_FLOAT: *(float *)dst= num*intnum/den; break;
case FF_OPT_TYPE_INT64: case FF_OPT_TYPE_DOUBLE:*(double *)dst= num*intnum/den; break;
*(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: case FF_OPT_TYPE_RATIONAL:
if((int)num == num) if((int)num == num) *(AVRational*)dst= (AVRational){num*intnum, den};
*(AVRational*)dst= (AVRational){num*intnum, den}; else *(AVRational*)dst= av_d2q(num*intnum/den, 1<<24);
else
*(AVRational*)dst= av_d2q(num*intnum/den, 1<<24);
default: default:
return -1; return NULL;
} }
return 0; return o;
} }
//FIXME use eval.c maybe? //FIXME use eval.c maybe?
int av_set_string(void *obj, const char *name, const char *val){ AVOption *av_set_string(void *obj, const char *name, const char *val){
AVOption *o= find_opt(obj, name); AVOption *o= find_opt(obj, name);
if(!o || !val || o->offset<=0) if(!o || !val || o->offset<=0)
return -1; return NULL;
if(o->type != FF_OPT_TYPE_STRING){ if(o->type != FF_OPT_TYPE_STRING){
double d=0, tmp_d; double d=0, tmp_d;
for(;;){ for(;;){
...@@ -113,56 +103,136 @@ int av_set_string(void *obj, const char *name, const char *val){ ...@@ -113,56 +103,136 @@ int av_set_string(void *obj, const char *name, const char *val){
else if(!strcmp(buf, "default")) d+= o->default_val; else if(!strcmp(buf, "default")) d+= o->default_val;
else if(!strcmp(buf, "max" )) d+= o->max; else if(!strcmp(buf, "max" )) d+= o->max;
else if(!strcmp(buf, "min" )) d+= o->min; else if(!strcmp(buf, "min" )) d+= o->min;
else return -1; else return NULL;
} }
if(*val == '+') val++; if(*val == '+') val++;
if(!*val) if(!*val)
return av_set_number(obj, name, d, 1, 1); return av_set_number(obj, name, d, 1, 1);
} }
return -1; return NULL;
} }
memcpy(((uint8_t*)obj) + o->offset, val, sizeof(val)); memcpy(((uint8_t*)obj) + o->offset, val, sizeof(val));
return 0; return o;
} }
int av_set_double(void *obj, const char *name, double n){ AVOption *av_set_double(void *obj, const char *name, double n){
return av_set_number(obj, name, n, 1, 1); return av_set_number(obj, name, n, 1, 1);
} }
int av_set_q(void *obj, const char *name, AVRational n){ AVOption *av_set_q(void *obj, const char *name, AVRational n){
return av_set_number(obj, name, n.num, n.den, 1); return av_set_number(obj, name, n.num, n.den, 1);
} }
int av_set_int(void *obj, const char *name, int64_t n){ AVOption *av_set_int(void *obj, const char *name, int64_t n){
return av_set_number(obj, name, 1, 1, n); return av_set_number(obj, name, 1, 1, n);
} }
const char *av_get_string(void *obj, const char *name){ /**
*
* @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); AVOption *o= find_opt(obj, name);
void *dst;
if(!o || o->offset<=0) if(!o || o->offset<=0)
return NULL; return NULL;
if(o->type != FF_OPT_TYPE_STRING) //FIXME convert to string? but what about free()? if(o->type != FF_OPT_TYPE_STRING && (!buf || !buf_len))
return NULL; return NULL;
return (const char*)(((uint8_t*)obj) + o->offset); 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_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_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;
} }
double av_get_double(void *obj, const char *name){ 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); AVOption *o= find_opt(obj, name);
void *dst; void *dst;
if(!o || o->offset<=0) if(!o || o->offset<=0)
return NAN; goto error;
dst= ((uint8_t*)obj) + o->offset; dst= ((uint8_t*)obj) + o->offset;
if(o_out) *o_out= o;
switch(o->type){ switch(o->type){
case FF_OPT_TYPE_INT: return *(int*)dst; case FF_OPT_TYPE_INT: *intnum= *(int *)dst;return 0;
case FF_OPT_TYPE_INT64: return *(int64_t*)dst; //FIXME maybe write a av_get_int64() ? case FF_OPT_TYPE_INT64: *intnum= *(int64_t*)dst;return 0;
case FF_OPT_TYPE_FLOAT: return *(float*)dst; case FF_OPT_TYPE_FLOAT: *num= *(float *)dst;return 0;
case FF_OPT_TYPE_DOUBLE: return *(double*)dst; case FF_OPT_TYPE_DOUBLE: *num= *(double *)dst;return 0;
case FF_OPT_TYPE_RATIONAL: return av_q2d(*(AVRational*)dst); //FIXME maybe write a av_get_q() ? case FF_OPT_TYPE_RATIONAL: *intnum= ((AVRational*)dst)->num;
default: return NAN; *den = ((AVRational*)dst)->den;
return 0;
} }
error:
*den=*intnum=0;
return -1;
}
double av_get_double(void *obj, const char *name, 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, 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, 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;
}
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);
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);
}
return 0;
} }
libavcodec/utils.c
View file @ 0aaffc47
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