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glcolorconvert: try harder to passthrough

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This makes a pipeline like:

... ! video/x-raw(memory:GLMemory),format=UYVY ! glcolorconvert !
video/x-raw(memory:GLMemory),format={UYVY, NV12} ! ...

passthrough instead of converting UYVY => NV12. The conversion would happen
before this change since the element (and basetransform) transform the src caps
to format={NV12, UYVY} (since NV12 comes first in the glcolorconvert:src
template) and then the default caps fixate func would fixate to NV12. Blah.

Also there's no need to intersect against the template caps in ::transform_caps
since basetransform does that right after calling the vfunc.
This commit is contained in:
Alessandro Decina 2016-01-14 16:00:00 +11:00 committed by Tim-Philipp Müller
parent 731f9928dd
commit c2a6c97a1d
1 changed files with 28 additions and 14 deletions
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42
gst-libs/gst/gl/gstglcolorconvert.c
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@ -828,25 +828,38 @@ GstCaps *
gst_gl_color_convert_transform_caps (GstGLContext * convert,
GstPadDirection direction, GstCaps * caps, GstCaps * filter)
{
GstCaps *templ, *result;
templ = gst_caps_from_string (GST_GL_COLOR_CONVERT_VIDEO_CAPS);
caps = gst_gl_color_convert_caps_remove_format_info (caps);
result = gst_caps_intersect (caps, templ);
gst_caps_unref (caps);
gst_caps_unref (templ);
if (filter) {
GstCaps *tmp;
tmp = gst_caps_intersect_full (filter, result, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (result);
result = tmp;
tmp = gst_caps_intersect_full (filter, caps, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (caps);
caps = tmp;
}
return result;
return caps;
}
static void
gst_gl_color_convert_fixate_format (GstStructure * ins, GstStructure * outs)
{
const gchar *in_format = gst_structure_get_string (ins, "format");
const GValue *out_formats = gst_structure_get_value (outs, "format");
guint i;
if (in_format == NULL || !GST_VALUE_HOLDS_LIST (out_formats))
/* we don't need to or don't know how to fixate */
return;
for (i = 0; i < gst_value_list_get_size (out_formats); i++) {
const gchar *format =
g_value_get_string (gst_value_list_get_value (out_formats, i));
if (!strcmp (format, in_format)) {
gst_structure_set (outs, "format", G_TYPE_STRING, format, NULL);
break;
}
}
}
GstCaps *
@ -869,7 +882,9 @@ gst_gl_color_convert_fixate_caps (GstGLContext * convert,
targets_mask = gst_gl_value_get_texture_target_mask (targets);
other_targets_mask = gst_gl_value_get_texture_target_mask (other_targets);
/* XXX: attempt to fixate the format/colorimetry/etc */
gst_gl_color_convert_fixate_format (s, s_other);
/* XXX: attempt to fixate the colorimetry/etc */
other = gst_caps_fixate (other);
result_mask = targets_mask & other_targets_mask;
@ -878,7 +893,6 @@ gst_gl_color_convert_fixate_caps (GstGLContext * convert,
return other;
}
caps = gst_caps_copy (caps);
caps = gst_caps_fixate (caps);
gst_video_info_from_caps (&info, caps);