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shapewipe: Add BGRA support for video in/output

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This commit is contained in:
Sebastian Dröge 2009-07-08 17:59:29 +02:00
parent fc80a08e44
commit b870322686
1 changed files with 27 additions and 18 deletions
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45
gst/shapewipe/gstshapewipe.c
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@ -96,7 +96,8 @@ static GstStaticPadTemplate video_sink_pad_template =
GST_STATIC_PAD_TEMPLATE ("video_sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("AYUV") " ; " GST_VIDEO_CAPS_ARGB));
GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("AYUV") " ; " GST_VIDEO_CAPS_ARGB " ; "
GST_VIDEO_CAPS_BGRA));
static GstStaticPadTemplate mask_sink_pad_template =
GST_STATIC_PAD_TEMPLATE ("mask_sink",
@ -113,7 +114,8 @@ static GstStaticPadTemplate mask_sink_pad_template =
static GstStaticPadTemplate src_pad_template =
GST_STATIC_PAD_TEMPLATE ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("AYUV") " ; " GST_VIDEO_CAPS_ARGB));
GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("AYUV") " ; " GST_VIDEO_CAPS_ARGB " ; "
GST_VIDEO_CAPS_BGRA));
GST_DEBUG_CATEGORY_STATIC (gst_shape_wipe_debug);
#define GST_CAT_DEFAULT gst_shape_wipe_debug
@ -808,9 +810,9 @@ gst_shape_wipe_blend_ayuv_##depth (GstShapeWipe * self, GstBuffer * inbuf, \
CREATE_AYUV_FUNCTIONS (16, 65536.0f);
CREATE_AYUV_FUNCTIONS (8, 256.0f);
#define CREATE_ARGB_FUNCTIONS(depth, scale) \
#define CREATE_ARGB_FUNCTIONS(depth, name, scale, a, r, g, b) \
static GstFlowReturn \
gst_shape_wipe_blend_argb_##depth (GstShapeWipe * self, GstBuffer * inbuf, \
gst_shape_wipe_blend_##name##_##depth (GstShapeWipe * self, GstBuffer * inbuf, \
GstBuffer * maskbuf, GstBuffer * outbuf) \
{ \
const guint##depth *mask = (const guint##depth *) GST_BUFFER_DATA (maskbuf); \
@ -838,22 +840,22 @@ gst_shape_wipe_blend_argb_##depth (GstShapeWipe * self, GstBuffer * inbuf, \
gfloat in = *mask / scale; \
\
if (in < low) { \
output[0] = 0x00; /* A */ \
output[1] = 0x00; /* R */ \
output[2] = 0x00; /* G */ \
output[3] = 0x00; /* B */ \
output[a] = 0x00; /* A */ \
output[r] = 0x00; /* R */ \
output[g] = 0x00; /* G */ \
output[b] = 0x00; /* B */ \
} else if (in >= high) { \
output[0] = 0xff; /* A */ \
output[1] = input[1]; /* R */ \
output[2] = input[2]; /* G */ \
output[3] = input[3]; /* B */ \
output[a] = 0xff; /* A */ \
output[r] = input[r]; /* R */ \
output[g] = input[g]; /* G */ \
output[b] = input[b]; /* B */ \
} else { \
gfloat val = 255.0f * ((in - low) / (high - low)); \
\
output[0] = CLAMP (val, 0, 255); /* A */ \
output[1] = input[1]; /* R */ \
output[2] = input[2]; /* G */ \
output[3] = input[3]; /* B */ \
output[a] = CLAMP (val, 0, 255); /* A */ \
output[r] = input[r]; /* R */ \
output[g] = input[g]; /* G */ \
output[b] = input[b]; /* B */ \
} \
\
mask++; \
@ -866,8 +868,11 @@ gst_shape_wipe_blend_argb_##depth (GstShapeWipe * self, GstBuffer * inbuf, \
return GST_FLOW_OK; \
}
CREATE_ARGB_FUNCTIONS (16, 65536.0f);
CREATE_ARGB_FUNCTIONS (8, 256.0f);
CREATE_ARGB_FUNCTIONS (16, argb, 65536.0f, 0, 1, 2, 3);
CREATE_ARGB_FUNCTIONS (8, argb, 256.0f, 0, 1, 2, 3);
CREATE_ARGB_FUNCTIONS (16, bgra, 65536.0f, 3, 2, 1, 0);
CREATE_ARGB_FUNCTIONS (8, bgra, 256.0f, 3, 2, 1, 0);
static GstFlowReturn
gst_shape_wipe_video_sink_chain (GstPad * pad, GstBuffer * buffer)
@ -937,6 +942,10 @@ gst_shape_wipe_video_sink_chain (GstPad * pad, GstBuffer * buffer)
ret = gst_shape_wipe_blend_argb_16 (self, buffer, mask, outbuf);
else if (self->fmt == GST_VIDEO_FORMAT_ARGB)
ret = gst_shape_wipe_blend_argb_8 (self, buffer, mask, outbuf);
else if (self->fmt == GST_VIDEO_FORMAT_BGRA && self->mask_bpp == 16)
ret = gst_shape_wipe_blend_bgra_16 (self, buffer, mask, outbuf);
else if (self->fmt == GST_VIDEO_FORMAT_BGRA)
ret = gst_shape_wipe_blend_bgra_8 (self, buffer, mask, outbuf);
else
g_assert_not_reached ();