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alphacolor: Use libgstvideo for caps parsing

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This commit is contained in:
Sebastian Dröge 2010-03-15 18:14:19 +01:00
parent 751b293df8
commit 8cbb9608f9
2 changed files with 11 additions and 30 deletions
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36
gst/alpha/gstalphacolor.c
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@ -157,39 +157,21 @@ gst_alpha_color_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
GstCaps * outcaps) GstCaps * outcaps)
{ {
GstAlphaColor *alpha = GST_ALPHA_COLOR (btrans); GstAlphaColor *alpha = GST_ALPHA_COLOR (btrans);
GstStructure *structure;
gboolean ret; gboolean ret;
const GValue *fps; gint w, h;
gint red_mask, alpha_mask; GstVideoFormat format;
gint w, h, depth, bpp;
structure = gst_caps_get_structure (incaps, 0); ret = gst_video_format_parse_caps (outcaps, &format, &w, &h);
ret = gst_structure_get_int (structure, "width", &w); if (!ret || (format != GST_VIDEO_FORMAT_ARGB
ret &= gst_structure_get_int (structure, "height", &h); && format != GST_VIDEO_FORMAT_BGRA)) {
fps = gst_structure_get_value (structure, "framerate");
ret &= (fps != NULL && GST_VALUE_HOLDS_FRACTION (fps));
ret &= gst_structure_get_int (structure, "red_mask", &red_mask);
/* make sure these are really full RGBA caps */
ret &= gst_structure_get_int (structure, "alpha_mask", &alpha_mask);
ret &= gst_structure_get_int (structure, "depth", &depth);
ret &= gst_structure_get_int (structure, "bpp", &bpp);
if (!ret || alpha_mask == 0 || red_mask == 0 || depth != 32 || bpp != 32) {
GST_DEBUG_OBJECT (alpha, "incomplete or non-RGBA input caps!"); GST_DEBUG_OBJECT (alpha, "incomplete or non-RGBA input caps!");
return FALSE; return FALSE;
} }
alpha->in_width = w; alpha->format = format;
alpha->in_height = h; alpha->width = w;
alpha->in_rgba = TRUE; alpha->height = h;
#if (G_BYTE_ORDER == G_BIG_ENDIAN)
if (red_mask != 0x000000ff)
#else
if (red_mask != 0xff000000)
#endif
alpha->in_rgba = FALSE;
return TRUE; return TRUE;
} }
@ -241,7 +223,7 @@ gst_alpha_color_transform_ip (GstBaseTransform * btrans, GstBuffer * inbuf)
GstAlphaColor *alpha = GST_ALPHA_COLOR (btrans); GstAlphaColor *alpha = GST_ALPHA_COLOR (btrans);
/* Transform in place */ /* Transform in place */
if (alpha->in_rgba) if (alpha->format == GST_VIDEO_FORMAT_ARGB)
transform_rgb (GST_BUFFER_DATA (inbuf), GST_BUFFER_SIZE (inbuf)); transform_rgb (GST_BUFFER_DATA (inbuf), GST_BUFFER_SIZE (inbuf));
else else
transform_bgr (GST_BUFFER_DATA (inbuf), GST_BUFFER_SIZE (inbuf)); transform_bgr (GST_BUFFER_DATA (inbuf), GST_BUFFER_SIZE (inbuf));

5
gst/alpha/gstalphacolor.h
View file

@ -43,9 +43,8 @@ struct _GstAlphaColor
/*< private >*/ /*< private >*/
/* caps */ /* caps */
gint in_width, in_height; GstVideoFormat format;
gboolean in_rgba; gint width, height;
gint out_width, out_height;
}; };
struct _GstAlphaColorClass struct _GstAlphaColorClass