static GstFlowReturn
gst_alpha_color_transform_ip (GstBaseTransform * btrans, GstBuffer * inbuf)
{
GstFlowReturn ret = GST_FLOW_OK;
GstAlphaColor *alpha;
alpha = GST_ALPHA_COLOR (btrans);
/* 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));
return ret;
}
static gboolean
gst_alpha_color_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
GstCaps * outcaps)
{
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;
}
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;
return TRUE;
}
static GstFlowReturn
gst_alpha_color_transform_frame_ip (GstVideoFilter * filter,
GstVideoFrame * frame)
{
GstAlphaColor *alpha = GST_ALPHA_COLOR (filter);
if (G_UNLIKELY (!alpha->process))
goto not_negotiated;
/* Transform in place */
alpha->process (frame, alpha->matrix);
return GST_FLOW_OK;
/* ERRORS */
not_negotiated:
{
GST_ERROR_OBJECT (alpha, "Not negotiated yet");
return GST_FLOW_NOT_NEGOTIATED;
}
}
static gboolean
gst_alpha_color_set_info (GstVideoFilter * filter, GstCaps * incaps,
GstVideoInfo * in_info, GstCaps * outcaps, GstVideoInfo * out_info)
{
GstAlphaColor *alpha = GST_ALPHA_COLOR (filter);
gboolean in_sdtv, out_sdtv;
alpha->process = NULL;
alpha->matrix = NULL;
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->colorimetry.matrix == GST_VIDEO_COLOR_MATRIX_BT601;
out_sdtv = out_info->colorimetry.matrix == GST_VIDEO_COLOR_MATRIX_BT601;
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 (GST_BASE_TRANSFORM (filter), 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;
}
}
