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lavu/opt: add AV_OPT_TYPE_CHANNEL_LAYOUT and handler functions

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The new type is compatible with AV_OPT_TYPE_INT64, but allows to specify
channel layouts using the format accepted by av_get_channel_layout().
This commit is contained in:
Stefano Sabatini 2013-10-04 12:07:55 +02:00
parent d96e377c39
commit 8696e51baf
4 changed files with 83 additions and 3 deletions
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5
doc/APIchanges
View File

@ -15,6 +15,11 @@ libavutil: 2012-10-22
API changes, most recent first:
libavutil 52.47.100
2013-10-17 - xxxxxxx - lavu 52.47.100 - opt.h
Add AV_OPT_TYPE_CHANNEL_LAYOUT and channel layout option handlers
av_opt_get_channel_layout() and av_opt_set_channel_layout().
2013-10-xx - xxxxxxx -libswscale 2.5.101 - options.c
Change default scaler to bicubic

74
libavutil/opt.c
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@ -27,6 +27,7 @@
#include "avutil.h"
#include "avstring.h"
#include "channel_layout.h"
#include "common.h"
#include "opt.h"
#include "eval.h"
@ -77,6 +78,7 @@ static int read_number(const AVOption *o, void *dst, double *num, int *den, int6
case AV_OPT_TYPE_PIXEL_FMT:
case AV_OPT_TYPE_SAMPLE_FMT:
case AV_OPT_TYPE_INT: *intnum = *(int *)dst;return 0;
case AV_OPT_TYPE_CHANNEL_LAYOUT:
case AV_OPT_TYPE_DURATION:
case AV_OPT_TYPE_INT64: *intnum = *(int64_t *)dst;return 0;
case AV_OPT_TYPE_FLOAT: *num = *(float *)dst;return 0;
@ -103,6 +105,7 @@ static int write_number(void *obj, const AVOption *o, void *dst, double num, int
case AV_OPT_TYPE_SAMPLE_FMT:
case AV_OPT_TYPE_INT: *(int *)dst= llrint(num/den)*intnum; break;
case AV_OPT_TYPE_DURATION:
case AV_OPT_TYPE_CHANNEL_LAYOUT:
case AV_OPT_TYPE_INT64: *(int64_t *)dst= llrint(num/den)*intnum; break;
case AV_OPT_TYPE_FLOAT: *(float *)dst= num*intnum/den; break;
case AV_OPT_TYPE_DOUBLE:*(double *)dst= num*intnum/den; break;
@ -259,7 +262,8 @@ int av_opt_set(void *obj, const char *name, const char *val, int search_flags)
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_VIDEO_RATE &&
o->type != AV_OPT_TYPE_DURATION && o->type != AV_OPT_TYPE_COLOR))
o->type != AV_OPT_TYPE_DURATION && o->type != AV_OPT_TYPE_COLOR &&
o->type != AV_OPT_TYPE_CHANNEL_LAYOUT))
return AVERROR(EINVAL);
dst = ((uint8_t*)target_obj) + o->offset;
@ -341,6 +345,24 @@ int av_opt_set(void *obj, const char *name, const char *val, int search_flags)
av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as color\n", val);
return ret;
}
break;
case AV_OPT_TYPE_CHANNEL_LAYOUT:
if (!val || !strcmp(val, "none")) {
*(int64_t *)dst = 0;
} else {
#if FF_API_GET_CHANNEL_LAYOUT_COMPAT
int64_t cl = ff_get_channel_layout(val, 0);
#else
int64_t cl = av_get_channel_layout(val);
#endif
if (!cl) {
av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as channel layout\n", val);
ret = AVERROR(EINVAL);
}
*(int64_t *)dst = cl;
return ret;
}
break;
}
av_log(obj, AV_LOG_ERROR, "Invalid option type.\n");
@ -532,6 +554,22 @@ int av_opt_set_sample_fmt(void *obj, const char *name, enum AVSampleFormat fmt,
return set_format(obj, name, fmt, search_flags, AV_OPT_TYPE_SAMPLE_FMT, "sample", AV_SAMPLE_FMT_NB);
}
int av_opt_set_channel_layout(void *obj, const char *name, int64_t cl, 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_CHANNEL_LAYOUT) {
av_log(obj, AV_LOG_ERROR,
"The value set by option '%s' is not a channel layout.\n", o->name);
return AVERROR(EINVAL);
}
*(int *)(((int64_t *)target_obj) + o->offset) = cl;
return 0;
}
#if FF_API_OLD_AVOPTIONS
/**
*
@ -630,6 +668,10 @@ int av_opt_get(void *obj, const char *name, int search_flags, uint8_t **out_val)
case AV_OPT_TYPE_COLOR:
ret = snprintf(buf, sizeof(buf), "0x%02x%02x%02x%02x", ((int *)dst)[0], ((int *)dst)[1], ((int *)dst)[2], ((int *)dst)[3]);
break;
case AV_OPT_TYPE_CHANNEL_LAYOUT:
i64 = *(int64_t *)dst;
ret = snprintf(buf, sizeof(buf), "0x%"PRIx64, i64);
break;
default:
return AVERROR(EINVAL);
}
@ -799,6 +841,23 @@ int av_opt_get_sample_fmt(void *obj, const char *name, int search_flags, enum AV
return get_format(obj, name, search_flags, out_fmt, AV_OPT_TYPE_SAMPLE_FMT, "sample");
}
int av_opt_get_channel_layout(void *obj, const char *name, int search_flags, int64_t *cl)
{
void *dst, *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_CHANNEL_LAYOUT) {
av_log(obj, AV_LOG_ERROR,
"The value for option '%s' is not a channel layout.\n", name);
return AVERROR(EINVAL);
}
dst = ((uint8_t*)target_obj) + o->offset;
*cl = *(int64_t *)dst;
return 0;
}
int av_opt_flag_is_set(void *obj, const char *field_name, const char *flag_name)
{
const AVOption *field = av_opt_find(obj, field_name, NULL, 0, 0);
@ -902,6 +961,9 @@ static void opt_list(void *obj, void *av_log_obj, const char *unit,
case AV_OPT_TYPE_COLOR:
av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<color>");
break;
case AV_OPT_TYPE_CHANNEL_LAYOUT:
av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<channel_layout>");
break;
case AV_OPT_TYPE_CONST:
default:
av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "");
@ -972,6 +1034,10 @@ static void opt_list(void *obj, void *av_log_obj, const char *unit,
case AV_OPT_TYPE_STRING:
case AV_OPT_TYPE_VIDEO_RATE:
av_log(av_log_obj, AV_LOG_INFO, "\"%s\"", opt->default_val.str);
break;
case AV_OPT_TYPE_CHANNEL_LAYOUT:
av_log(av_log_obj, AV_LOG_INFO, "0x%"PRIx64, opt->default_val.i64);
break;
}
av_log(av_log_obj, AV_LOG_INFO, ")");
}
@ -1019,6 +1085,7 @@ void av_opt_set_defaults2(void *s, int mask, int flags)
case AV_OPT_TYPE_INT:
case AV_OPT_TYPE_INT64:
case AV_OPT_TYPE_DURATION:
case AV_OPT_TYPE_CHANNEL_LAYOUT:
av_opt_set_int(s, opt->name, opt->default_val.i64, 0);
break;
case AV_OPT_TYPE_DOUBLE:
@ -1395,6 +1462,7 @@ int av_opt_query_ranges_default(AVOptionRanges **ranges_arg, void *obj, const ch
case AV_OPT_TYPE_DOUBLE:
case AV_OPT_TYPE_DURATION:
case AV_OPT_TYPE_COLOR:
case AV_OPT_TYPE_CHANNEL_LAYOUT:
break;
case AV_OPT_TYPE_STRING:
range->component_min = 0;
@ -1462,6 +1530,7 @@ typedef struct TestContext
enum AVSampleFormat sample_fmt;
int64_t duration;
uint8_t color[4];
int64_t channel_layout;
} TestContext;
#define OFFSET(x) offsetof(TestContext, x)
@ -1485,6 +1554,7 @@ static const AVOption test_options[]= {
{"video_rate", "set videorate", OFFSET(video_rate), AV_OPT_TYPE_VIDEO_RATE, {.str = "25"}, 0, 0 },
{"duration", "set duration", OFFSET(duration), AV_OPT_TYPE_DURATION, {.i64 = 0}, 0, INT64_MAX},
{"color", "set color", OFFSET(color), AV_OPT_TYPE_COLOR, {.str = "pink"}, 0, 0},
{"cl", "set channel layout", OFFSET(channel_layout), AV_OPT_TYPE_CHANNEL_LAYOUT, {.i64 = AV_CH_LAYOUT_HEXAGONAL}, 0, INT64_MAX},
{NULL},
};
@ -1546,6 +1616,8 @@ int main(void)
"color=blue",
"color=0x223300",
"color=0x42FF07AA",
"cl=stereo+downmix",
"cl=foo",
};
test_ctx.class = &test_class;

3
libavutil/opt.h
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@ -233,6 +233,7 @@ enum AVOptionType{
AV_OPT_TYPE_VIDEO_RATE = MKBETAG('V','R','A','T'), ///< offset must point to AVRational
AV_OPT_TYPE_DURATION = MKBETAG('D','U','R',' '),
AV_OPT_TYPE_COLOR = MKBETAG('C','O','L','R'),
AV_OPT_TYPE_CHANNEL_LAYOUT = MKBETAG('C','H','L','A'),
#if FF_API_OLD_AVOPTIONS
FF_OPT_TYPE_FLAGS = 0,
FF_OPT_TYPE_INT,
@ -657,6 +658,7 @@ int av_opt_set_image_size(void *obj, const char *name, int w, int h, int search_
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);
int av_opt_set_channel_layout(void *obj, const char *name, int64_t ch_layout, int search_flags);
/**
* Set a binary option to an integer list.
@ -700,6 +702,7 @@ int av_opt_get_image_size(void *obj, const char *name, int search_flags, int *w_
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);
int av_opt_get_channel_layout(void *obj, const char *name, int search_flags, int64_t *ch_layout);
/**
* @}
*/

4
libavutil/version.h
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@ -75,8 +75,8 @@
*/
#define LIBAVUTIL_VERSION_MAJOR 52
#define LIBAVUTIL_VERSION_MINOR 46
#define LIBAVUTIL_VERSION_MICRO 101
#define LIBAVUTIL_VERSION_MINOR 47
#define LIBAVUTIL_VERSION_MICRO 100
#define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \
LIBAVUTIL_VERSION_MINOR, \