@@ -3256,6 +3256,10 @@ named options, expressed as a sequence of @var{key}=@var{value} pairs,

 separated by ":".

 @table @option

+@item max

+Set the maximum integer value to use for expressing numerator and

+denominator when reducing the expressed aspect ratio to a rational.

+Default value is @code{100}.

 @item r, ratio:

 Set the aspect ratio used by the filter.

@@ -3268,6 +3272,9 @@ In case the form "@var{num}:@var{den}" the @code{:} character should

 be escaped.

 @end table

+If the keys are omitted in the named options list, the specifed values

+are assumed to be @var{ratio} and @var{max} in that order.

+

 For example to change the display aspect ratio to 16:9, specify:

 @example

 setdar='16:9'

@@ -3283,6 +3290,12 @@ To change the sample aspect ratio to 10:11, specify:

 setsar='10:11'

 @end example

+To set a display aspect ratio of 16:9, and specify a maximum integer value of

+1000 in the aspect ratio reduction, use the command:

+@example

+setdar=ratio='16:9':max=1000

+@end example

+

 @section setfield

 Force field for the output video frame.

@@ -30,7 +30,7 @@

 #define LIBAVFILTER_VERSION_MAJOR  3

 #define LIBAVFILTER_VERSION_MINOR  20

-#define LIBAVFILTER_VERSION_MICRO 103

+#define LIBAVFILTER_VERSION_MICRO 104

 #define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \

                                                LIBAVFILTER_VERSION_MINOR, \

@@ -35,12 +35,14 @@ typedef struct {

     const AVClass *class;

     AVRational ratio;

     char *ratio_str;

+    int max;

 } AspectContext;

 #define OFFSET(x) offsetof(AspectContext, x)

 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

 static const AVOption options[] = {

+    {"max", "set max value for nominator or denominator in the ratio", OFFSET(max), AV_OPT_TYPE_INT, {.i64=100}, 1, INT_MAX, FLAGS },

     {"ratio", "set ratio", OFFSET(ratio_str), AV_OPT_TYPE_STRING, {.str="0"}, 0, 0, FLAGS },

     {"r",     "set ratio", OFFSET(ratio_str), AV_OPT_TYPE_STRING, {.str="0"}, 0, 0, FLAGS },

     {NULL}

@@ -49,7 +51,7 @@ static const AVOption options[] = {

 static av_cold int init(AVFilterContext *ctx, const char *args, const AVClass *class)

 {

     AspectContext *aspect = ctx->priv;

-    static const char *shorthand[] = { "ratio", NULL };

+    static const char *shorthand[] = { "ratio", "max", NULL };

     char c;

     int ret;

     AVRational q;

@@ -66,7 +68,7 @@ static av_cold int init(AVFilterContext *ctx, const char *args, const AVClass *c

     }

     if (aspect->ratio_str) {

-        ret = av_parse_ratio(&aspect->ratio, aspect->ratio_str, 100, 0, ctx);

+        ret = av_parse_ratio(&aspect->ratio, aspect->ratio_str, aspect->max, 0, ctx);

         if (ret < 0 || aspect->ratio.num < 0 || aspect->ratio.den <= 0) {

             av_log(ctx, AV_LOG_ERROR,

                    "Invalid string '%s' for aspect ratio\n", args);