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lavfi/aspect: switch to an AVOptions-based system.
This is heavily based on 2831b307 by Anton Khirnov <anton@khirnov.net>
This commit is contained in:
Clément Bœsch
parent
647fe2e777
commit
71ef1ec7b4
@ -5030,18 +5030,10 @@ Keep in mind that the sample aspect ratio set by the @code{setsar}
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filter may be changed by later filters in the filterchain, e.g. if
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another "setsar" or a "setdar" filter is applied.
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The @code{setdar} and @code{setsar} filters accept a string in the
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form @var{num}:@var{den} expressing an aspect ratio, or the following
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named options, expressed as a sequence of @var{key}=@var{value} pairs,
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separated by ":".
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The filters accept the following options:
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@table @option
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@item max
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Set the maximum integer value to use for expressing numerator and
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denominator when reducing the expressed aspect ratio to a rational.
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Default value is @code{100}.
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@item r, ratio, dar, sar:
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@item r, ratio, dar (@code{setdar} only), sar (@code{setsar} only)
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Set the aspect ratio used by the filter.
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The parameter can be a floating point number string, an expression, or
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@ -5050,33 +5042,41 @@ a string of the form @var{num}:@var{den}, where @var{num} and
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the parameter is not specified, it is assumed the value "0".
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In case the form "@var{num}:@var{den}" the @code{:} character should
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be escaped.
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@item max
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Set the maximum integer value to use for expressing numerator and
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denominator when reducing the expressed aspect ratio to a rational.
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Default value is @code{100}.
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@end table
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If the keys are omitted in the named options list, the specifed values
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are assumed to be @var{ratio} and @var{max} in that order.
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@subsection Examples
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For example to change the display aspect ratio to 16:9, specify:
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@itemize
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@item
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To change the display aspect ratio to 16:9, specify one of the following:
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@example
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setdar='16:9'
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# the above is equivalent to
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setdar=1.77777
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setdar=dar=1.77777
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setdar=dar=16/9
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setdar=dar=1.77777
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@end example
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@item
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To change the sample aspect ratio to 10:11, specify:
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@example
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setsar='10:11'
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# the above is equivalent to
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setsar='sar=10/11'
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setsar=sar=10/11
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@end example
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@item
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To set a display aspect ratio of 16:9, and specify a maximum integer value of
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1000 in the aspect ratio reduction, use the command:
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@example
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setdar=ratio='16:9':max=1000
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setdar=ratio=16/9:max=1000
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@end example
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@end itemize
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@anchor{setfield}
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@section setfield
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@ -681,8 +681,6 @@ static const char *const filters_left_to_update[] = {
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"mp",
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"pan",
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"scale",
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"setdar",
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"setsar",
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};
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static int filter_use_deprecated_init(const char *name)
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@ -38,7 +38,6 @@
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typedef struct {
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const AVClass *class;
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AVRational aspect;
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char *ratio_str;
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int max;
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#if FF_API_OLD_FILTER_OPTS
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float aspect_num, aspect_den;
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@ -49,26 +48,11 @@ typedef struct {
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static av_cold int init(AVFilterContext *ctx, const char *args)
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{
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AspectContext *s = ctx->priv;
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static const char *shorthand[] = { "ratio", "max", NULL };
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char c;
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int ret;
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AVRational q;
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if (args && sscanf(args, "%d:%d%c", &q.num, &q.den, &c) == 2) {
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s->ratio_str = av_strdup(args);
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if (s->aspect_num > 0 && s->aspect_den > 0) {
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av_log(ctx, AV_LOG_WARNING,
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"num:den syntax is deprecated, please use num/den or named options instead\n");
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} else if ((ret = av_opt_set_from_string(s, args, shorthand, "=", ":")) < 0) {
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return ret;
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}
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if (s->ratio_str) {
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ret = av_parse_ratio(&s->aspect, s->ratio_str, s->max, 0, ctx);
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if (ret < 0 || s->aspect.num < 0 || s->aspect.den <= 0) {
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av_log(ctx, AV_LOG_ERROR,
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"Invalid string '%s' for aspect ratio\n", args);
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return AVERROR(EINVAL);
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}
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s->aspect = av_d2q(s->aspect_num / s->aspect_den, INT_MAX);
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}
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return 0;
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@ -111,11 +95,15 @@ static int setdar_config_props(AVFilterLink *inlink)
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}
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static const AVOption setdar_options[] = {
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{"max", "set max value for nominator or denominator in the ratio", OFFSET(max), AV_OPT_TYPE_INT, {.i64=100}, 1, INT_MAX, FLAGS },
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{"ratio", "display aspect ratio", OFFSET(ratio_str), AV_OPT_TYPE_STRING, {.str="0"}, 0, 0, FLAGS },
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{"r", "display aspect ratio", OFFSET(ratio_str), AV_OPT_TYPE_STRING, {.str="0"}, 0, 0, FLAGS },
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{"dar", "display aspect ratio", OFFSET(ratio_str), AV_OPT_TYPE_STRING, {.str="0"}, 0, 0, FLAGS },
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{NULL}
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#if FF_API_OLD_FILTER_OPTS
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{ "dar_num", NULL, OFFSET(aspect_num), AV_OPT_TYPE_FLOAT, { .dbl = 0 }, 0, FLT_MAX, FLAGS },
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{ "dar_den", NULL, OFFSET(aspect_den), AV_OPT_TYPE_FLOAT, { .dbl = 0 }, 0, FLT_MAX, FLAGS },
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#endif
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{ "dar", "set display aspect ratio", OFFSET(aspect), AV_OPT_TYPE_RATIONAL, {.dbl=0}, 0, INT_MAX, FLAGS },
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{ "ratio", "set display aspect ratio", OFFSET(aspect), AV_OPT_TYPE_RATIONAL, {.dbl=0}, 0, INT_MAX, FLAGS },
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{ "r", "set display aspect ratio", OFFSET(aspect), AV_OPT_TYPE_RATIONAL, {.dbl=0}, 0, INT_MAX, FLAGS },
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{ "max", "set max value for nominator or denominator in the ratio", OFFSET(max), AV_OPT_TYPE_INT, {.i64=100}, 1, INT_MAX, FLAGS },
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{ NULL }
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};
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AVFILTER_DEFINE_CLASS(setdar);
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@ -170,11 +158,15 @@ static int setsar_config_props(AVFilterLink *inlink)
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}
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static const AVOption setsar_options[] = {
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{"max", "set max value for nominator or denominator in the ratio", OFFSET(max), AV_OPT_TYPE_INT, {.i64=100}, 1, INT_MAX, FLAGS },
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{"ratio", "sample (pixel) aspect ratio", OFFSET(ratio_str), AV_OPT_TYPE_STRING, {.str="0"}, 0, 0, FLAGS },
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{"r", "sample (pixel) aspect ratio", OFFSET(ratio_str), AV_OPT_TYPE_STRING, {.str="0"}, 0, 0, FLAGS },
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{"sar", "sample (pixel) aspect ratio", OFFSET(ratio_str), AV_OPT_TYPE_STRING, {.str="0"}, 0, 0, FLAGS },
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{NULL}
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#if FF_API_OLD_FILTER_OPTS
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{ "sar_num", NULL, OFFSET(aspect_num), AV_OPT_TYPE_FLOAT, { .dbl = 0 }, 0, FLT_MAX, FLAGS },
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{ "sar_den", NULL, OFFSET(aspect_den), AV_OPT_TYPE_FLOAT, { .dbl = 0 }, 0, FLT_MAX, FLAGS },
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#endif
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{ "sar", "set sample (pixel) aspect ratio", OFFSET(aspect), AV_OPT_TYPE_RATIONAL, {.dbl=0}, 0, INT_MAX, FLAGS },
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{ "ratio", "set sample (pixel) aspect ratio", OFFSET(aspect), AV_OPT_TYPE_RATIONAL, {.dbl=0}, 0, INT_MAX, FLAGS },
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{ "r", "set sample (pixel) aspect ratio", OFFSET(aspect), AV_OPT_TYPE_RATIONAL, {.dbl=0}, 0, INT_MAX, FLAGS },
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{ "max", "set max value for nominator or denominator in the ratio", OFFSET(max), AV_OPT_TYPE_INT, {.i64=100}, 1, INT_MAX, FLAGS },
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{ NULL }
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};
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AVFILTER_DEFINE_CLASS(setsar);
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@ -60,8 +60,8 @@ do_lavfi "pp6" "pp=be/fd"
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do_lavfi "scale200" "scale=200:200"
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do_lavfi "scale500" "scale=500:500"
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do_lavfi "select" "select=not(eq(mod(n\,2)\,0)+eq(mod(n\,3)\,0))"
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do_lavfi "setdar" "setdar=16/9"
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do_lavfi "setsar" "setsar=16/11"
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do_lavfi "setdar" "setdar=dar=16/9"
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do_lavfi "setsar" "setsar=sar=16/11"
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do_lavfi "thumbnail" "thumbnail=10"
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do_lavfi "tile" "tile=3x3:nb_frames=5:padding=7:margin=2"
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do_lavfi "transpose" "transpose"
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