[aravis] gst: correctly set framerate caps range.

[Emmanuel Pacaud <emmanuel src gnome org>]

commit c1f7b83a17c45ae81f9fbcb3b4cd615850434285
Author: Edgar Thier <edgarthier gmail com>
Date:   Mon Jul 22 16:29:28 2013 +0200

    gst: correctly set framerate caps range.

 gst/gstaravis.c |   15 +++++++++++++--
 1 files changed, 13 insertions(+), 2 deletions(-)
---
diff --git a/gst/gstaravis.c b/gst/gstaravis.c
index 8919ea3..b956e1c 100644
--- a/gst/gstaravis.c
+++ b/gst/gstaravis.c
@@ -70,7 +70,7 @@ gst_aravis_get_all_camera_caps (GstAravis *gst_aravis)
 {
        GstCaps *caps;
        gint64 *pixel_formats;
-       double frame_rate;
+       double min_frame_rate, max_frame_rate;
        int min_height, min_width;
        int max_height, max_width;
        unsigned int n_pixel_formats, i;
@@ -85,6 +85,15 @@ gst_aravis_get_all_camera_caps (GstAravis *gst_aravis)
        arv_camera_get_width_bounds (gst_aravis->camera, &min_width, &max_width);
        arv_camera_get_height_bounds (gst_aravis->camera, &min_height, &max_height);
        pixel_formats = arv_camera_get_available_pixel_formats (gst_aravis->camera, &n_pixel_formats);
+       arv_camera_get_frame_rate_bounds (gst_aravis->camera, &min_frame_rate, &max_frame_rate);
+
+       int min_frame_rate_numerator;
+       int min_frame_rate_denominator;
+       gst_util_double_to_fraction (min_frame_rate, &min_frame_rate_numerator, &min_frame_rate_denominator);
+
+       int max_frame_rate_numerator;
+       int max_frame_rate_denominator;
+       gst_util_double_to_fraction (max_frame_rate, &max_frame_rate_numerator, &max_frame_rate_denominator);
 
        caps = gst_caps_new_empty ();
        for (i = 0; i < n_pixel_formats; i++) {
@@ -99,7 +108,9 @@ gst_aravis_get_all_camera_caps (GstAravis *gst_aravis)
                        gst_structure_set (structure,
                                           "width", GST_TYPE_INT_RANGE, min_width, max_width,
                                           "height", GST_TYPE_INT_RANGE, min_height, max_height,
-                                          "framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1,
+                                          "framerate", GST_TYPE_FRACTION_RANGE,
+                                                          min_frame_rate_numerator, 
min_frame_rate_denominator,
+                                                          max_frame_rate_numerator, 
max_frame_rate_denominator,
                                           NULL);
                        gst_caps_append_structure (caps, structure);
                }