static GstStateChangeReturn
gst_cacasink_change_state (GstElement * element, GstStateChange transition)
{
GstStateChangeReturn ret;
switch (transition) {
case GST_STATE_CHANGE_READY_TO_PAUSED:
if (!gst_cacasink_open (GST_CACASINK (element)))
return GST_STATE_CHANGE_FAILURE;
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_PAUSED_TO_READY:
gst_cacasink_close (GST_CACASINK (element));
break;
default:
break;
}
return ret;
}
static void
gst_cacasink_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstCACASink *cacasink;
cacasink = GST_CACASINK (object);
switch (prop_id) {
case PROP_SCREEN_WIDTH:{
g_value_set_int (value, cacasink->screen_width);
break;
}
case PROP_SCREEN_HEIGHT:{
g_value_set_int (value, cacasink->screen_height);
break;
}
case PROP_DITHER:{
g_value_set_enum (value, cacasink->dither);
break;
}
case PROP_ANTIALIASING:{
g_value_set_boolean (value, cacasink->antialiasing);
break;
}
default:{
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
}
static void
gst_cacasink_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstCACASink *cacasink;
g_return_if_fail (GST_IS_CACASINK (object));
cacasink = GST_CACASINK (object);
switch (prop_id) {
case PROP_DITHER:{
cacasink->dither = g_value_get_enum (value);
caca_set_dithering (cacasink->dither + CACA_DITHERING_NONE);
break;
}
case PROP_ANTIALIASING:{
cacasink->antialiasing = g_value_get_boolean (value);
if (cacasink->antialiasing) {
caca_set_feature (CACA_ANTIALIASING_MAX);
} else {
caca_set_feature (CACA_ANTIALIASING_MIN);
}
break;
}
default:
break;
}
}
static GstFlowReturn
gst_cacasink_render (GstBaseSink * basesink, GstBuffer * buffer)
{
GstCACASink *cacasink = GST_CACASINK (basesink);
GstVideoFrame frame;
GST_DEBUG ("render");
if (!gst_video_frame_map (&frame, &cacasink->info, buffer, GST_MAP_READ))
goto invalid_frame;
caca_clear ();
caca_draw_bitmap (0, 0, cacasink->screen_width - 1,
cacasink->screen_height - 1, cacasink->bitmap,
GST_VIDEO_FRAME_PLANE_DATA (&frame, 0));
caca_refresh ();
gst_video_frame_unmap (&frame);
return GST_FLOW_OK;
/* ERRORS */
invalid_frame:
{
GST_ERROR_OBJECT (cacasink, "invalid frame received");
return GST_FLOW_ERROR;
}
}
static gboolean
gst_cacasink_setcaps (GstBaseSink * basesink, GstCaps * caps)
{
GstCACASink *cacasink;
GstStructure *structure;
cacasink = GST_CACASINK (basesink);
structure = gst_caps_get_structure (caps, 0);
gst_structure_get_int (structure, "width", &(cacasink->width));
gst_structure_get_int (structure, "height", &(cacasink->height));
gst_structure_get_int (structure, "bpp", (int *) &cacasink->bpp);
gst_structure_get_int (structure, "red_mask", (int *) &cacasink->red_mask);
gst_structure_get_int (structure, "green_mask",
(int *) &cacasink->green_mask);
gst_structure_get_int (structure, "blue_mask", (int *) &cacasink->blue_mask);
if (cacasink->bpp == 24) {
cacasink->red_mask = GUINT32_FROM_BE (cacasink->red_mask) >> 8;
cacasink->green_mask = GUINT32_FROM_BE (cacasink->green_mask) >> 8;
cacasink->blue_mask = GUINT32_FROM_BE (cacasink->blue_mask) >> 8;
}
static gboolean
gst_cacasink_setcaps (GstBaseSink * basesink, GstCaps * caps)
{
GstCACASink *cacasink;
GstVideoInfo info;
guint bpp, red_mask, green_mask, blue_mask;
cacasink = GST_CACASINK (basesink);
if (!gst_video_info_from_caps (&info, caps))
goto caps_error;
switch (GST_VIDEO_INFO_FORMAT (&info)) {
case GST_VIDEO_FORMAT_RGB:
bpp = 24;
red_mask = 0xff0000;
green_mask = 0x00ff00;
blue_mask = 0x0000ff;
break;
case GST_VIDEO_FORMAT_RGBx:
bpp = 32;
red_mask = 0xff000000;
green_mask = 0x00ff0000;
blue_mask = 0x0000ff00;
break;
case GST_VIDEO_FORMAT_RGB16:
bpp = 16;
red_mask = 0xf800;
green_mask = 0x07e0;
blue_mask = 0x001f;
break;
case GST_VIDEO_FORMAT_RGB15:
bpp = 16;
red_mask = 0x7c00;
green_mask = 0x03e0;
blue_mask = 0x001f;
break;
default:
goto invalid_format;
}
if (cacasink->bitmap) {
caca_free_bitmap (cacasink->bitmap);
}
cacasink->bitmap = caca_create_bitmap (bpp,
GST_VIDEO_INFO_WIDTH (&info),
GST_VIDEO_INFO_HEIGHT (&info),
GST_ROUND_UP_4 (GST_VIDEO_INFO_WIDTH (&info) * bpp / 8),
red_mask, green_mask, blue_mask, 0);
if (!cacasink->bitmap)
goto no_bitmap;
cacasink->info = info;
return TRUE;
/* ERROS */
caps_error:
{
GST_ERROR_OBJECT (cacasink, "error parsing caps");
return FALSE;
}
invalid_format:
{
GST_ERROR_OBJECT (cacasink, "invalid format");
return FALSE;
}
no_bitmap:
{
GST_ERROR_OBJECT (cacasink, "could not create bitmap");
return FALSE;
}
}
