* SECTION:element-alphacolor
*
* The alphacolor element does memory-efficient (in-place) colourspace
- * conversion from RGBA to AYUV, preserving the alpha channel.
+ * conversion from RGBA to AYUV or AYUV to RGBA while preserving the
+ * alpha channel.
+ *
+ * Sample pipeline:
+ * |[
+ * gst-launch videotestsrc ! "video/x-raw,format=(fourcc)AYUV" ! \
+ * alphacolor ! videoconvert ! autovideosink
+ * ]|
*/
#ifdef HAVE_CONFIG_H
#define GST_CAT_DEFAULT alpha_color_debug
/* elementfactory information */
-static const GstElementDetails gst_alpha_color_details =
-GST_ELEMENT_DETAILS ("Alpha color filter",
- "Filter/Effect/Video",
- "RGBA to AYUV colorspace conversion preserving the alpha channel",
- "Wim Taymans <wim@fluendo.com>");
-
static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
- GST_STATIC_CAPS (GST_VIDEO_CAPS_RGBA ";" GST_VIDEO_CAPS_BGRA)
+ GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE ("{ RGBA, BGRA, ARGB, ABGR, AYUV }"))
);
static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
- GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("AYUV"))
+ GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE ("{ RGBA, BGRA, ARGB, ABGR, AYUV }"))
);
-GST_BOILERPLATE (GstAlphaColor, gst_alpha_color, GstBaseTransform,
- GST_TYPE_BASE_TRANSFORM);
+G_DEFINE_TYPE (GstAlphaColor, gst_alpha_color, GST_TYPE_VIDEO_FILTER);
static GstCaps *gst_alpha_color_transform_caps (GstBaseTransform * btrans,
- GstPadDirection direction, GstCaps * caps);
+ GstPadDirection direction, GstCaps * caps, GstCaps * filter);
static gboolean gst_alpha_color_set_caps (GstBaseTransform * btrans,
GstCaps * incaps, GstCaps * outcaps);
static GstFlowReturn gst_alpha_color_transform_ip (GstBaseTransform * btrans,
GstBuffer * inbuf);
static void
-gst_alpha_color_base_init (gpointer g_class)
+gst_alpha_color_class_init (GstAlphaColorClass * klass)
{
- GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
+ GstElementClass *gstelement_class = (GstElementClass *) klass;
+ GstBaseTransformClass *gstbasetransform_class =
+ (GstBaseTransformClass *) klass;
+
+ GST_DEBUG_CATEGORY_INIT (alpha_color_debug, "alphacolor", 0,
+ "ARGB<->AYUV colorspace conversion preserving the alpha channels");
- gst_element_class_set_details (element_class, &gst_alpha_color_details);
+ gst_element_class_set_details_simple (gstelement_class, "Alpha color filter",
+ "Filter/Converter/Video",
+ "ARGB from/to AYUV colorspace conversion preserving the alpha channel",
+ "Wim Taymans <wim.taymans@gmail.com>");
- gst_element_class_add_pad_template (element_class,
+ gst_element_class_add_pad_template (gstelement_class,
gst_static_pad_template_get (&sink_template));
- gst_element_class_add_pad_template (element_class,
+ gst_element_class_add_pad_template (gstelement_class,
gst_static_pad_template_get (&src_template));
-}
-
-static void
-gst_alpha_color_class_init (GstAlphaColorClass * klass)
-{
- GObjectClass *gobject_class;
- GstElementClass *gstelement_class;
- GstBaseTransformClass *gstbasetransform_class;
-
- gobject_class = (GObjectClass *) klass;
- gstelement_class = (GstElementClass *) klass;
- gstbasetransform_class = (GstBaseTransformClass *) klass;
gstbasetransform_class->transform_caps =
GST_DEBUG_FUNCPTR (gst_alpha_color_transform_caps);
GST_DEBUG_FUNCPTR (gst_alpha_color_set_caps);
gstbasetransform_class->transform_ip =
GST_DEBUG_FUNCPTR (gst_alpha_color_transform_ip);
-
- GST_DEBUG_CATEGORY_INIT (alpha_color_debug, "alphacolor", 0,
- "RGB->YUV colorspace conversion preserving the alpha channels");
}
static void
-gst_alpha_color_init (GstAlphaColor * alpha, GstAlphaColorClass * g_class)
+gst_alpha_color_init (GstAlphaColor * alpha)
{
- GstBaseTransform *btrans = NULL;
-
- btrans = GST_BASE_TRANSFORM (alpha);
+ GstBaseTransform *btrans = GST_BASE_TRANSFORM (alpha);
btrans->always_in_place = TRUE;
}
static GstCaps *
gst_alpha_color_transform_caps (GstBaseTransform * btrans,
- GstPadDirection direction, GstCaps * caps)
+ GstPadDirection direction, GstCaps * caps, GstCaps * filter)
{
- GstAlphaColor *alpha = NULL;
const GstCaps *tmpl_caps = NULL;
GstCaps *result = NULL, *local_caps = NULL;
guint i;
- alpha = GST_ALPHA_COLOR (btrans);
+ local_caps = gst_caps_new_empty ();
- local_caps = gst_caps_copy (caps);
+ for (i = 0; i < gst_caps_get_size (caps); i++) {
+ GstStructure *structure =
+ gst_structure_copy (gst_caps_get_structure (caps, i));
- for (i = 0; i < gst_caps_get_size (local_caps); i++) {
- GstStructure *structure = gst_caps_get_structure (local_caps, i);
-
- /* Throw away the structure name and set it to transformed format */
- if (direction == GST_PAD_SINK) {
- gst_structure_set_name (structure, "video/x-raw-yuv");
- } else if (direction == GST_PAD_SRC) {
- gst_structure_set_name (structure, "video/x-raw-rgb");
- }
/* Remove any specific parameter from the structure */
gst_structure_remove_field (structure, "format");
gst_structure_remove_field (structure, "endianness");
gst_structure_remove_field (structure, "green_mask");
gst_structure_remove_field (structure, "blue_mask");
gst_structure_remove_field (structure, "alpha_mask");
+ gst_structure_remove_field (structure, "color-matrix");
+ gst_structure_remove_field (structure, "chroma-site");
+
+ gst_structure_set_name (structure, "video/x-raw-rgb");
+ gst_caps_append_structure (local_caps, gst_structure_copy (structure));
+ gst_structure_set_name (structure, "video/x-raw-yuv");
+ gst_caps_append_structure (local_caps, structure);
}
/* Get the appropriate template */
gst_caps_unref (local_caps);
gst_caps_do_simplify (result);
- GST_LOG ("transformed %" GST_PTR_FORMAT " to %" GST_PTR_FORMAT, caps, result);
+ GST_LOG_OBJECT (btrans, "transformed %" GST_PTR_FORMAT " to %" GST_PTR_FORMAT,
+ caps, result);
+
+ if (filter) {
+ GstCaps *intersection;
+
+ GST_DEBUG_OBJECT (btrans, "Using filter caps %" GST_PTR_FORMAT, filter);
+ intersection =
+ gst_caps_intersect_full (filter, result, GST_CAPS_INTERSECT_FIRST);
+ gst_caps_unref (result);
+ result = intersection;
+ GST_DEBUG_OBJECT (btrans, "Intersection %" GST_PTR_FORMAT, result);
+ }
+
return result;
}
-static gboolean
-gst_alpha_color_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
- GstCaps * outcaps)
+/* Generated by -bad/ext/cog/generate_tables */
+static const int cog_ycbcr_to_rgb_matrix_8bit_hdtv[] = {
+ 298, 0, 459, -63514,
+ 298, -55, -136, 19681,
+ 298, 541, 0, -73988,
+};
+
+static const int cog_ycbcr_to_rgb_matrix_8bit_sdtv[] = {
+ 298, 0, 409, -57068,
+ 298, -100, -208, 34707,
+ 298, 516, 0, -70870,
+};
+
+static const gint cog_rgb_to_ycbcr_matrix_8bit_hdtv[] = {
+ 47, 157, 16, 4096,
+ -26, -87, 112, 32768,
+ 112, -102, -10, 32768,
+};
+
+static const gint cog_rgb_to_ycbcr_matrix_8bit_sdtv[] = {
+ 66, 129, 25, 4096,
+ -38, -74, 112, 32768,
+ 112, -94, -18, 32768,
+};
+
+static const gint cog_ycbcr_sdtv_to_ycbcr_hdtv_matrix_8bit[] = {
+ 256, -30, -53, 10600,
+ 0, 261, 29, -4367,
+ 0, 19, 262, -3289,
+};
+
+static const gint cog_ycbcr_hdtv_to_ycbcr_sdtv_matrix_8bit[] = {
+ 256, 25, 49, -9536,
+ 0, 253, -28, 3958,
+ 0, -19, 252, 2918,
+};
+
+#define DEFINE_ARGB_AYUV_FUNCTIONS(name, A, R, G, B) \
+static void \
+transform_##name##_ayuv (GstVideoFrame * frame, const gint *matrix) \
+{ \
+ guint8 *data; \
+ gsize size; \
+ gint y, u, v; \
+ gint yc[4]; \
+ gint uc[4]; \
+ gint vc[4]; \
+ \
+ data = GST_VIDEO_FRAME_PLANE_DATA (frame, 0);\
+ size = GST_VIDEO_FRAME_SIZE (frame);\
+ \
+ memcpy (yc, matrix, 4 * sizeof (gint)); \
+ memcpy (uc, matrix + 4, 4 * sizeof (gint)); \
+ memcpy (vc, matrix + 8, 4 * sizeof (gint)); \
+ \
+ while (size > 0) { \
+ y = (data[R] * yc[0] + data[G] * yc[1] + data[B] * yc[2] + yc[3]) >> 8; \
+ u = (data[R] * uc[0] + data[G] * uc[1] + data[B] * uc[2] + uc[3]) >> 8; \
+ v = (data[R] * vc[0] + data[G] * vc[1] + data[B] * vc[2] + vc[3]) >> 8; \
+ \
+ data[0] = data[A]; \
+ data[1] = y; \
+ data[2] = u; \
+ data[3] = v; \
+ \
+ data += 4; \
+ size -= 4; \
+ } \
+} \
+\
+static void \
+transform_ayuv_##name (GstVideoFrame * frame, const gint *matrix) \
+{ \
+ guint8 *data; \
+ gsize size; \
+ gint r, g, b; \
+ gint rc[4]; \
+ gint gc[4]; \
+ gint bc[4]; \
+ \
+ data = GST_VIDEO_FRAME_PLANE_DATA (frame, 0);\
+ size = GST_VIDEO_FRAME_SIZE (frame);\
+ \
+ memcpy (rc, matrix, 4 * sizeof (gint)); \
+ memcpy (gc, matrix + 4, 4 * sizeof (gint)); \
+ memcpy (bc, matrix + 8, 4 * sizeof (gint)); \
+ \
+ while (size > 0) { \
+ r = (data[1] * rc[0] + data[2] * rc[1] + data[3] * rc[2] + rc[3]) >> 8; \
+ g = (data[1] * gc[0] + data[2] * gc[1] + data[3] * gc[2] + gc[3]) >> 8; \
+ b = (data[1] * bc[0] + data[2] * bc[1] + data[3] * bc[2] + bc[3]) >> 8; \
+ \
+ data[A] = data[0]; \
+ data[R] = CLAMP (r, 0, 255); \
+ data[G] = CLAMP (g, 0, 255); \
+ data[B] = CLAMP (b, 0, 255); \
+ \
+ data += 4; \
+ size -= 4; \
+ } \
+}
+
+DEFINE_ARGB_AYUV_FUNCTIONS (rgba, 3, 0, 1, 2);
+DEFINE_ARGB_AYUV_FUNCTIONS (bgra, 3, 2, 1, 0);
+DEFINE_ARGB_AYUV_FUNCTIONS (argb, 0, 1, 2, 3);
+DEFINE_ARGB_AYUV_FUNCTIONS (abgr, 0, 3, 2, 1);
+
+static void
+transform_ayuv_ayuv (GstVideoFrame * frame, const gint * matrix)
{
- GstAlphaColor *alpha;
- GstStructure *structure;
- gboolean ret;
- const GValue *fps;
- gint red_mask, alpha_mask;
- gint w, h, depth, bpp;
-
- alpha = GST_ALPHA_COLOR (btrans);
- structure = gst_caps_get_structure (incaps, 0);
-
- ret = gst_structure_get_int (structure, "width", &w);
- ret &= gst_structure_get_int (structure, "height", &h);
- 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!");
- return FALSE;
+ guint8 *data;
+ gsize size;
+ gint y, u, v;
+ gint yc[4];
+ gint uc[4];
+ gint vc[4];
+
+ if (matrix == NULL)
+ return;
+
+ data = GST_VIDEO_FRAME_PLANE_DATA (frame, 0);
+ size = GST_VIDEO_FRAME_SIZE (frame);
+
+ memcpy (yc, matrix, 4 * sizeof (gint));
+ memcpy (uc, matrix + 4, 4 * sizeof (gint));
+ memcpy (vc, matrix + 8, 4 * sizeof (gint));
+
+ while (size > 0) {
+ y = (data[1] * yc[0] + data[2] * yc[1] + data[3] * yc[2] + yc[3]) >> 8;
+ u = (data[1] * uc[0] + data[2] * uc[1] + data[3] * uc[2] + uc[3]) >> 8;
+ v = (data[1] * vc[0] + data[2] * vc[1] + data[3] * vc[2] + vc[3]) >> 8;
+
+ data[0] = data[0];
+ data[1] = y;
+ data[2] = u;
+ data[3] = v;
+
+ data += 4;
+ size -= 4;
}
+}
- alpha->in_width = w;
- alpha->in_height = h;
- alpha->in_rgba = TRUE;
-#if (G_BYTE_ORDER == G_BIG_ENDIAN)
- if (red_mask != 0x000000ff)
-#else
- if (red_mask != 0xff000000)
-#endif
- alpha->in_rgba = FALSE;
+static void
+transform_argb_bgra (GstVideoFrame * frame, const gint * matrix)
+{
+ guint8 *data;
+ gsize size;
+ gint r, g, b;
- return TRUE;
+ data = GST_VIDEO_FRAME_PLANE_DATA (frame, 0);
+ size = GST_VIDEO_FRAME_SIZE (frame);
+
+ while (size > 0) {
+ r = data[1];
+ g = data[2];
+ b = data[3];
+
+ data[3] = data[0];
+ data[0] = b;
+ data[1] = g;
+ data[2] = r;
+
+ data += 4;
+ size -= 4;
+ }
}
+#define transform_abgr_rgba transform_argb_bgra
+
static void
-transform_rgb (guint8 * data, gint size)
+transform_argb_abgr (GstVideoFrame * frame, const gint * matrix)
{
- guint8 y, u, v;
+ guint8 *data;
+ gsize size;
+ gint r, g, b;
+
+ data = GST_VIDEO_FRAME_PLANE_DATA (frame, 0);
+ size = GST_VIDEO_FRAME_SIZE (frame);
while (size > 0) {
- y = data[0] * 0.299 + data[1] * 0.587 + data[2] * 0.114 + 0;
- u = data[0] * -0.169 + data[1] * -0.332 + data[2] * 0.500 + 128;
- v = data[0] * 0.500 + data[1] * -0.419 + data[2] * -0.0813 + 128;
+ r = data[1];
+ g = data[2];
+ b = data[3];
+
+ /* data[0] = data[0]; */
+ data[1] = b;
+ data[2] = g;
+ data[3] = r;
+
+ data += 4;
+ size -= 4;
+ }
+}
+
+#define transform_abgr_argb transform_argb_abgr
+
+static void
+transform_rgba_bgra (GstVideoFrame * frame, const gint * matrix)
+{
+ guint8 *data;
+ gsize size;
+ gint r, g, b;
+
+ data = GST_VIDEO_FRAME_PLANE_DATA (frame, 0);
+ size = GST_VIDEO_FRAME_SIZE (frame);
+
+ while (size > 0) {
+ r = data[0];
+ g = data[1];
+ b = data[2];
+
+ /* data[3] = data[3] */ ;
+ data[0] = b;
+ data[1] = g;
+ data[2] = r;
+
+ data += 4;
+ size -= 4;
+ }
+}
+
+#define transform_bgra_rgba transform_rgba_bgra
+
+static void
+transform_argb_rgba (GstVideoFrame * frame, const gint * matrix)
+{
+ guint8 *data;
+ gsize size;
+ gint r, g, b;
+
+ data = GST_VIDEO_FRAME_PLANE_DATA (frame, 0);
+ size = GST_VIDEO_FRAME_SIZE (frame);
+
+ while (size > 0) {
+ r = data[1];
+ g = data[2];
+ b = data[3];
+
+ data[3] = data[0];
+ data[0] = r;
+ data[1] = g;
+ data[2] = b;
+
+ data += 4;
+ size -= 4;
+ }
+}
+
+#define transform_abgr_bgra transform_argb_rgba
+
+static void
+transform_bgra_argb (GstVideoFrame * frame, const gint * matrix)
+{
+ guint8 *data;
+ gsize size;
+ gint r, g, b;
+
+ data = GST_VIDEO_FRAME_PLANE_DATA (frame, 0);
+ size = GST_VIDEO_FRAME_SIZE (frame);
+
+ while (size > 0) {
+ r = data[2];
+ g = data[1];
+ b = data[0];
data[0] = data[3];
- data[1] = y;
- data[2] = u;
- data[3] = v;
+ data[1] = r;
+ data[2] = g;
+ data[3] = b;
data += 4;
size -= 4;
}
}
+#define transform_rgba_abgr transform_bgra_argb
+
static void
-transform_bgr (guint8 * data, gint size)
+transform_rgba_argb (GstVideoFrame * frame, const gint * matrix)
{
- guint8 y, u, v;
+ guint8 *data;
+ gsize size;
+ gint r, g, b;
+
+ data = GST_VIDEO_FRAME_PLANE_DATA (frame, 0);
+ size = GST_VIDEO_FRAME_SIZE (frame);
while (size > 0) {
- y = data[2] * 0.299 + data[1] * 0.587 + data[0] * 0.114 + 0;
- u = data[2] * -0.169 + data[1] * -0.332 + data[0] * 0.500 + 128;
- v = data[2] * 0.500 + data[1] * -0.419 + data[0] * -0.0813 + 128;
+ r = data[0];
+ g = data[1];
+ b = data[2];
data[0] = data[3];
- data[1] = y;
- data[2] = u;
- data[3] = v;
+ data[1] = r;
+ data[2] = g;
+ data[3] = b;
data += 4;
size -= 4;
}
}
+#define transform_bgra_abgr transform_rgba_argb
+
+static gboolean
+gst_alpha_color_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
+ GstCaps * outcaps)
+{
+ GstAlphaColor *alpha = GST_ALPHA_COLOR (btrans);
+ gboolean ret;
+ GstVideoInfo in_info, out_info;
+ gboolean in_sdtv, out_sdtv;
+
+ alpha->process = NULL;
+ alpha->matrix = NULL;
+
+ ret = gst_video_info_from_caps (&in_info, incaps);
+ ret &= gst_video_info_from_caps (&out_info, outcaps);
+ if (!ret)
+ goto invalid_caps;
+
+ if (GST_VIDEO_INFO_WIDTH (&in_info) != GST_VIDEO_INFO_WIDTH (&out_info) ||
+ GST_VIDEO_INFO_HEIGHT (&in_info) != GST_VIDEO_INFO_HEIGHT (&out_info))
+ goto invalid_caps;
+
+ in_sdtv =
+ in_info.color_matrix ? g_str_equal (in_info.color_matrix, "sdtv") : TRUE;
+ out_sdtv =
+ out_info.color_matrix ? g_str_equal (out_info.color_matrix,
+ "sdtv") : TRUE;
+
+ switch (GST_VIDEO_INFO_FORMAT (&in_info)) {
+ case GST_VIDEO_FORMAT_ARGB:
+ switch (GST_VIDEO_INFO_FORMAT (&out_info)) {
+ case GST_VIDEO_FORMAT_ARGB:
+ alpha->process = NULL;
+ alpha->matrix = NULL;
+ break;
+ case GST_VIDEO_FORMAT_BGRA:
+ alpha->process = transform_argb_bgra;
+ alpha->matrix = NULL;
+ break;
+ case GST_VIDEO_FORMAT_ABGR:
+ alpha->process = transform_argb_abgr;
+ alpha->matrix = NULL;
+ break;
+ case GST_VIDEO_FORMAT_RGBA:
+ alpha->process = transform_argb_rgba;
+ alpha->matrix = NULL;
+ break;
+ case GST_VIDEO_FORMAT_AYUV:
+ alpha->process = transform_argb_ayuv;
+ alpha->matrix =
+ out_sdtv ? cog_rgb_to_ycbcr_matrix_8bit_sdtv :
+ cog_rgb_to_ycbcr_matrix_8bit_hdtv;
+ break;
+ default:
+ alpha->process = NULL;
+ alpha->matrix = NULL;
+ break;
+ }
+ break;
+ case GST_VIDEO_FORMAT_BGRA:
+ switch (GST_VIDEO_INFO_FORMAT (&out_info)) {
+ case GST_VIDEO_FORMAT_BGRA:
+ alpha->process = NULL;
+ alpha->matrix = NULL;
+ break;
+ case GST_VIDEO_FORMAT_ARGB:
+ alpha->process = transform_bgra_argb;
+ alpha->matrix = NULL;
+ break;
+ case GST_VIDEO_FORMAT_ABGR:
+ alpha->process = transform_bgra_abgr;
+ alpha->matrix = NULL;
+ break;
+ case GST_VIDEO_FORMAT_RGBA:
+ alpha->process = transform_bgra_rgba;
+ alpha->matrix = NULL;
+ break;
+ case GST_VIDEO_FORMAT_AYUV:
+ alpha->process = transform_bgra_ayuv;
+ alpha->matrix =
+ out_sdtv ? cog_rgb_to_ycbcr_matrix_8bit_sdtv :
+ cog_rgb_to_ycbcr_matrix_8bit_hdtv;
+ break;
+ default:
+ alpha->process = NULL;
+ alpha->matrix = NULL;
+ break;
+ }
+ break;
+ case GST_VIDEO_FORMAT_ABGR:
+ switch (GST_VIDEO_INFO_FORMAT (&out_info)) {
+ case GST_VIDEO_FORMAT_ABGR:
+ alpha->process = NULL;
+ alpha->matrix = NULL;
+ break;
+ case GST_VIDEO_FORMAT_RGBA:
+ alpha->process = transform_abgr_rgba;
+ alpha->matrix = NULL;
+ break;
+ case GST_VIDEO_FORMAT_ARGB:
+ alpha->process = transform_abgr_argb;
+ alpha->matrix = NULL;
+ break;
+ case GST_VIDEO_FORMAT_BGRA:
+ alpha->process = transform_abgr_bgra;
+ alpha->matrix = NULL;
+ break;
+ case GST_VIDEO_FORMAT_AYUV:
+ alpha->process = transform_abgr_ayuv;
+ alpha->matrix =
+ out_sdtv ? cog_rgb_to_ycbcr_matrix_8bit_sdtv :
+ cog_rgb_to_ycbcr_matrix_8bit_hdtv;
+ break;
+ default:
+ alpha->process = NULL;
+ alpha->matrix = NULL;
+ break;
+ }
+ break;
+ case GST_VIDEO_FORMAT_RGBA:
+ switch (GST_VIDEO_INFO_FORMAT (&out_info)) {
+ case GST_VIDEO_FORMAT_RGBA:
+ alpha->process = NULL;
+ alpha->matrix = NULL;
+ break;
+ case GST_VIDEO_FORMAT_ARGB:
+ alpha->process = transform_rgba_argb;
+ alpha->matrix = NULL;
+ break;
+ case GST_VIDEO_FORMAT_ABGR:
+ alpha->process = transform_rgba_abgr;
+ alpha->matrix = NULL;
+ break;
+ case GST_VIDEO_FORMAT_BGRA:
+ alpha->process = transform_rgba_bgra;
+ alpha->matrix = NULL;
+ break;
+ case GST_VIDEO_FORMAT_AYUV:
+ alpha->process = transform_rgba_ayuv;
+ alpha->matrix =
+ out_sdtv ? cog_rgb_to_ycbcr_matrix_8bit_sdtv :
+ cog_rgb_to_ycbcr_matrix_8bit_hdtv;
+ break;
+ default:
+ alpha->process = NULL;
+ alpha->matrix = NULL;
+ break;
+ }
+ break;
+ case GST_VIDEO_FORMAT_AYUV:
+ switch (GST_VIDEO_INFO_FORMAT (&out_info)) {
+ case GST_VIDEO_FORMAT_AYUV:
+ if (in_sdtv == out_sdtv) {
+ alpha->process = transform_ayuv_ayuv;
+ alpha->matrix = NULL;
+ } else {
+ alpha->process = transform_ayuv_ayuv;
+ alpha->matrix =
+ out_sdtv ? cog_ycbcr_hdtv_to_ycbcr_sdtv_matrix_8bit :
+ cog_ycbcr_sdtv_to_ycbcr_hdtv_matrix_8bit;
+ }
+ break;
+ case GST_VIDEO_FORMAT_ARGB:
+ alpha->process = transform_ayuv_argb;
+ alpha->matrix =
+ in_sdtv ? cog_ycbcr_to_rgb_matrix_8bit_sdtv :
+ cog_ycbcr_to_rgb_matrix_8bit_hdtv;
+ break;
+ case GST_VIDEO_FORMAT_BGRA:
+ alpha->process = transform_ayuv_bgra;
+ alpha->matrix =
+ in_sdtv ? cog_ycbcr_to_rgb_matrix_8bit_sdtv :
+ cog_ycbcr_to_rgb_matrix_8bit_hdtv;
+ break;
+ case GST_VIDEO_FORMAT_ABGR:
+ alpha->process = transform_ayuv_abgr;
+ alpha->matrix =
+ in_sdtv ? cog_ycbcr_to_rgb_matrix_8bit_sdtv :
+ cog_ycbcr_to_rgb_matrix_8bit_hdtv;
+ break;
+ case GST_VIDEO_FORMAT_RGBA:
+ alpha->process = transform_ayuv_rgba;
+ alpha->matrix =
+ in_sdtv ? cog_ycbcr_to_rgb_matrix_8bit_sdtv :
+ cog_ycbcr_to_rgb_matrix_8bit_hdtv;
+ break;
+ default:
+ alpha->process = NULL;
+ alpha->matrix = NULL;
+ break;
+ }
+ break;
+ default:
+ alpha->process = NULL;
+ alpha->matrix = NULL;
+ break;
+ }
+
+ if (GST_VIDEO_INFO_FORMAT (&in_info) == GST_VIDEO_INFO_FORMAT (&out_info)
+ && in_sdtv == out_sdtv)
+ gst_base_transform_set_passthrough (btrans, TRUE);
+ else if (!alpha->process)
+ goto no_process;
+
+ return TRUE;
+
+ /* ERRORS */
+invalid_caps:
+ {
+ GST_DEBUG_OBJECT (alpha, "incomplete or invalid caps");
+ return FALSE;
+ }
+no_process:
+ {
+ GST_DEBUG_OBJECT (alpha, "could not find process function");
+ return FALSE;
+ }
+}
+
static GstFlowReturn
gst_alpha_color_transform_ip (GstBaseTransform * btrans, GstBuffer * inbuf)
{
- GstFlowReturn ret = GST_FLOW_OK;
- GstAlphaColor *alpha;
+ GstAlphaColor *alpha = GST_ALPHA_COLOR (btrans);
+ GstVideoFrame frame;
+
+ if (gst_base_transform_is_passthrough (btrans))
+ return GST_FLOW_OK;
- alpha = GST_ALPHA_COLOR (btrans);
+ if (G_UNLIKELY (!alpha->process))
+ goto not_negotiated;
+
+ if (!gst_video_frame_map (&frame, &alpha->in_info, inbuf, GST_MAP_READWRITE))
+ goto invalid_buffer;
/* Transform in place */
- if (alpha->in_rgba)
- transform_rgb (GST_BUFFER_DATA (inbuf), GST_BUFFER_SIZE (inbuf));
- else
- transform_bgr (GST_BUFFER_DATA (inbuf), GST_BUFFER_SIZE (inbuf));
+ alpha->process (&frame, alpha->matrix);
+
+ gst_video_frame_unmap (&frame);
- return ret;
+ return GST_FLOW_OK;
+
+ /* ERRORS */
+not_negotiated:
+ {
+ GST_ERROR_OBJECT (alpha, "Not negotiated yet");
+ return GST_FLOW_NOT_NEGOTIATED;
+ }
+invalid_buffer:
+ {
+ GST_ERROR_OBJECT (alpha, "Invalid buffer received");
+ return GST_FLOW_ERROR;
+ }
}
static gboolean
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"alphacolor",
- "RGBA to AYUV colorspace conversion preserving the alpha channel",
+ "RGBA from/to AYUV colorspace conversion preserving the alpha channel",
plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)
projects / platform / upstream / gst-plugins-good.git / blobdiff