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lavu/opt: add AV_OPT_VIDEO_RATE option 

Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2013-03-17 10:49:56 +00:00
parent 7d29c6eebc
commit 7aa9af51db
4 changed files with 67 additions and 2 deletions
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3
doc/APIchanges
View File

@ -15,6 +15,9 @@ libavutil: 2012-10-22
API changes, most recent first:
2013-03-17 - xxxxxx - lavu 52.20.100 - opt.h
Add AV_OPT_TYPE_VIDEO_RATE value to AVOptionType enum.
2013-03-07 - xxxxxx - lavu 52.18.100 - avstring.h,bprint.h
Add av_escape() and av_bprint_escape() API.

61
libavutil/opt.c
View File

@ -256,7 +256,7 @@ int av_opt_set(void *obj, const char *name, const char *val, int search_flags)
return AVERROR_OPTION_NOT_FOUND;
if (!val && (o->type != AV_OPT_TYPE_STRING &&
o->type != AV_OPT_TYPE_PIXEL_FMT && o->type != AV_OPT_TYPE_SAMPLE_FMT &&
o->type != AV_OPT_TYPE_IMAGE_SIZE))
o->type != AV_OPT_TYPE_IMAGE_SIZE && o->type != AV_OPT_TYPE_VIDEO_RATE))
return AVERROR(EINVAL);
dst = ((uint8_t*)target_obj) + o->offset;
@ -278,6 +278,15 @@ int av_opt_set(void *obj, const char *name, const char *val, int search_flags)
if (ret < 0)
av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as image size\n", val);
return ret;
case AV_OPT_TYPE_VIDEO_RATE:
if (!val) {
ret = AVERROR(EINVAL);
} else {
ret = av_parse_video_rate(dst, val);
}
if (ret < 0)
av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as video rate\n", val);
return ret;
case AV_OPT_TYPE_PIXEL_FMT:
if (!val || !strcmp(val, "none")) {
ret = AV_PIX_FMT_NONE;
@ -436,6 +445,23 @@ int av_opt_set_image_size(void *obj, const char *name, int w, int h, int search_
return 0;
}
int av_opt_set_video_rate(void *obj, const char *name, AVRational val, int search_flags)
{
void *target_obj;
const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
if (!o || !target_obj)
return AVERROR_OPTION_NOT_FOUND;
if (o->type != AV_OPT_TYPE_VIDEO_RATE) {
av_log(obj, AV_LOG_ERROR,
"The value set by option '%s' is not a video rate.\n", o->name);
return AVERROR(EINVAL);
}
if (val.num <= 0 || val.den <= 0)
return AVERROR(EINVAL);
return set_number(obj, name, val.num, val.den, 1, search_flags);
}
static int set_format(void *obj, const char *name, int fmt, int search_flags,
enum AVOptionType type, const char *desc, int nb_fmts)
{
@ -543,6 +569,7 @@ int av_opt_get(void *obj, const char *name, int search_flags, uint8_t **out_val)
case AV_OPT_TYPE_INT64: ret = snprintf(buf, sizeof(buf), "%"PRId64, *(int64_t*)dst);break;
case AV_OPT_TYPE_FLOAT: ret = snprintf(buf, sizeof(buf), "%f" , *(float *)dst);break;
case AV_OPT_TYPE_DOUBLE: ret = snprintf(buf, sizeof(buf), "%f" , *(double *)dst);break;
case AV_OPT_TYPE_VIDEO_RATE:
case AV_OPT_TYPE_RATIONAL: ret = snprintf(buf, sizeof(buf), "%d/%d", ((AVRational*)dst)->num, ((AVRational*)dst)->den);break;
case AV_OPT_TYPE_CONST: ret = snprintf(buf, sizeof(buf), "%f" , o->default_val.dbl);break;
case AV_OPT_TYPE_STRING:
@ -695,6 +722,22 @@ int av_opt_get_image_size(void *obj, const char *name, int search_flags, int *w_
return 0;
}
int av_opt_get_video_rate(void *obj, const char *name, int search_flags, AVRational *out_val)
{
int64_t intnum = 1;
double num = 1;
int ret, den = 1;
if ((ret = get_number(obj, name, NULL, &num, &den, &intnum, search_flags)) < 0)
return ret;
if (num == 1.0 && (int)intnum == intnum)
*out_val = (AVRational){intnum, den};
else
*out_val = av_d2q(num*intnum/den, 1<<24);
return 0;
}
static int get_format(void *obj, const char *name, int search_flags, int *out_fmt,
enum AVOptionType type, const char *desc)
{
@ -809,6 +852,9 @@ static void opt_list(void *obj, void *av_log_obj, const char *unit,
case AV_OPT_TYPE_IMAGE_SIZE:
av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<image_size>");
break;
case AV_OPT_TYPE_VIDEO_RATE:
av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<video_rate>");
break;
case AV_OPT_TYPE_PIXEL_FMT:
av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<pix_fmt>");
break;
@ -908,6 +954,7 @@ void av_opt_set_defaults2(void *s, int mask, int flags)
break;
case AV_OPT_TYPE_STRING:
case AV_OPT_TYPE_IMAGE_SIZE:
case AV_OPT_TYPE_VIDEO_RATE:
av_opt_set(s, opt->name, opt->default_val.str, 0);
break;
case AV_OPT_TYPE_PIXEL_FMT:
@ -1270,6 +1317,12 @@ int av_opt_query_ranges_default(AVOptionRanges **ranges_arg, void *obj, const ch
range->value_min = 0;
range->value_max = INT_MAX/8;
break;
case AV_OPT_TYPE_VIDEO_RATE:
range->component_min = 1;
range->component_max = INT_MAX;
range->value_min = 1;
range->value_max = INT_MAX;
break;
default:
ret = AVERROR(ENOSYS);
goto fail;
@ -1331,6 +1384,7 @@ static const AVOption test_options[]= {
{"size", "set size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE,{0}, 0, 0 },
{"pix_fmt", "set pixfmt", OFFSET(pix_fmt), AV_OPT_TYPE_PIXEL_FMT, {.i64 = AV_PIX_FMT_NONE}, -1, AV_PIX_FMT_NB-1},
{"sample_fmt", "set samplefmt", OFFSET(sample_fmt), AV_OPT_TYPE_SAMPLE_FMT, {.i64 = AV_SAMPLE_FMT_NONE}, -1, AV_SAMPLE_FMT_NB-1},
{"video_rate", "set videorate", OFFSET(video_rate), AV_OPT_TYPE_VIDEO_RATE, {.str = "25"}, 0, 0 },
{NULL},
};
@ -1381,6 +1435,11 @@ int main(void)
"sample_fmt=s16",
"sample_fmt=2",
"sample_fmt=bogus",
"video_rate=pal",
"video_rate=25",
"video_rate=30000/1001",
"video_rate=30/1.001",
"video_rate=bogus",
};
test_ctx.class = &test_class;

3
libavutil/opt.h
View File

@ -230,6 +230,7 @@ enum AVOptionType{
AV_OPT_TYPE_IMAGE_SIZE = MKBETAG('S','I','Z','E'), ///< offset must point to two consecutive integers
AV_OPT_TYPE_PIXEL_FMT = MKBETAG('P','F','M','T'),
AV_OPT_TYPE_SAMPLE_FMT = MKBETAG('S','F','M','T'),
AV_OPT_TYPE_VIDEO_RATE = MKBETAG('V','R','A','T'), ///< offset must point to AVRational
#if FF_API_OLD_AVOPTIONS
FF_OPT_TYPE_FLAGS = 0,
FF_OPT_TYPE_INT,
@ -653,6 +654,7 @@ int av_opt_set_bin (void *obj, const char *name, const uint8_t *val, int size,
int av_opt_set_image_size(void *obj, const char *name, int w, int h, int search_flags);
int av_opt_set_pixel_fmt (void *obj, const char *name, enum AVPixelFormat fmt, int search_flags);
int av_opt_set_sample_fmt(void *obj, const char *name, enum AVSampleFormat fmt, int search_flags);
int av_opt_set_video_rate(void *obj, const char *name, AVRational val, int search_flags);
/**
* @}
*/
@ -679,6 +681,7 @@ int av_opt_get_q (void *obj, const char *name, int search_flags, AVRational
int av_opt_get_image_size(void *obj, const char *name, int search_flags, int *w_out, int *h_out);
int av_opt_get_pixel_fmt (void *obj, const char *name, int search_flags, enum AVPixelFormat *out_fmt);
int av_opt_get_sample_fmt(void *obj, const char *name, int search_flags, enum AVSampleFormat *out_fmt);
int av_opt_get_video_rate(void *obj, const char *name, int search_flags, AVRational *out_val);
/**
* @}
*/

2
libavutil/version.h
View File

@ -75,7 +75,7 @@
*/
#define LIBAVUTIL_VERSION_MAJOR 52
#define LIBAVUTIL_VERSION_MINOR 20
#define LIBAVUTIL_VERSION_MINOR 21
#define LIBAVUTIL_VERSION_MICRO 100
#define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \