*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+/**
+ * SECTION:element-cacasink
+ * @see_also: #GstAASink
+ *
+ * Displays video as color ascii art.
+ *
+ * <refsect2>
+ * <title>Example launch line</title>
+ * |[
+ * CACA_GEOMETRY=160x60 CACA_FONT=5x7 gst-launch-1.0 filesrc location=test.avi ! decodebin ! videoconvert ! cacasink
+ * ]| This pipeline renders a video to ascii art into a separate window using a
+ * small font and specifying the ascii resolution.
+ * |[
+ * CACA_DRIVER=ncurses gst-launch-1.0 filesrc location=test.avi ! decodebin ! videoconvert ! cacasink
+ * ]| This pipeline renders a video to ascii art into the current terminal.
+ * </refsect2>
*/
#ifdef HAVE_CONFIG_H
#endif
#include <string.h>
-#include <sys/time.h>
-
#include "gstcacasink.h"
-/* elementfactory information */
-static const GstElementDetails gst_cacasink_details =
-GST_ELEMENT_DETAILS ("A colored ASCII art video sink",
- "Sink/Video",
- "A colored ASCII art videosink",
- "Zeeshan Ali <zak147@yahoo.com>");
+
+//#define GST_CACA_DEFAULT_RED_MASK R_MASK_32_REVERSE_INT
+//#define GST_CACA_DEFAULT_GREEN_MASK G_MASK_32_REVERSE_INT
+//#define GST_CACA_DEFAULT_BLUE_MASK B_MASK_32_REVERSE_INT
/* cacasink signals and args */
enum
LAST_SIGNAL
};
+#define GST_CACA_DEFAULT_SCREEN_WIDTH 80
+#define GST_CACA_DEFAULT_SCREEN_HEIGHT 25
+#define GST_CACA_DEFAULT_DITHER CACA_DITHERING_NONE
+#define GST_CACA_DEFAULT_ANTIALIASING TRUE
enum
{
- ARG_0,
- ARG_SCREEN_WIDTH,
- ARG_SCREEN_HEIGHT,
- ARG_DITHER,
- ARG_ANTIALIASING
+ PROP_0,
+ PROP_SCREEN_WIDTH,
+ PROP_SCREEN_HEIGHT,
+ PROP_DITHER,
+ PROP_ANTIALIASING
};
static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
- GST_STATIC_CAPS (GST_VIDEO_CAPS_RGB ";" GST_VIDEO_CAPS_RGBx ";"
- GST_VIDEO_CAPS_RGB_16 ";" GST_VIDEO_CAPS_RGB_15)
+ GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE
+ ("{ RGB, BGR, RGBx, xRGB, BGRx, xBGR, RGB16, RGB15 }"))
);
-static void gst_cacasink_base_init (gpointer g_class);
-static void gst_cacasink_class_init (GstCACASinkClass * klass);
-static void gst_cacasink_init (GstCACASink * cacasink);
-
static gboolean gst_cacasink_setcaps (GstBaseSink * pad, GstCaps * caps);
static void gst_cacasink_get_times (GstBaseSink * sink, GstBuffer * buffer,
GstClockTime * start, GstClockTime * end);
static GstStateChangeReturn gst_cacasink_change_state (GstElement * element,
GstStateChange transition);
-static GstElementClass *parent_class = NULL;
-
-GType
-gst_cacasink_get_type (void)
-{
- static GType cacasink_type = 0;
-
- if (!cacasink_type) {
- static const GTypeInfo cacasink_info = {
- sizeof (GstCACASinkClass),
- gst_cacasink_base_init,
- NULL,
- (GClassInitFunc) gst_cacasink_class_init,
- NULL,
- NULL,
- sizeof (GstCACASink),
- 0,
- (GInstanceInitFunc) gst_cacasink_init,
- };
-
- cacasink_type =
- g_type_register_static (GST_TYPE_BASE_SINK, "GstCACASink",
- &cacasink_info, 0);
- }
- return cacasink_type;
-}
+#define gst_cacasink_parent_class parent_class
+G_DEFINE_TYPE (GstCACASink, gst_cacasink, GST_TYPE_BASE_SINK);
#define GST_TYPE_CACADITHER (gst_cacasink_dither_get_type())
static GType
{
static GType dither_type = 0;
- static GEnumValue dither_types[] = {
+ static const GEnumValue dither_types[] = {
{CACA_DITHERING_NONE, "No dithering", "none"},
{CACA_DITHERING_ORDERED2, "Ordered 2x2 Bayer dithering", "2x2"},
{CACA_DITHERING_ORDERED4, "Ordered 4x4 Bayer dithering", "4x4"},
}
static void
-gst_cacasink_base_init (gpointer g_class)
-{
- GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
-
- gst_element_class_set_details (element_class, &gst_cacasink_details);
- gst_element_class_add_pad_template (element_class,
- gst_static_pad_template_get (&sink_template));
-}
-
-static void
gst_cacasink_class_init (GstCACASinkClass * klass)
{
GObjectClass *gobject_class;
gobject_class->set_property = gst_cacasink_set_property;
gobject_class->get_property = gst_cacasink_get_property;
- gstelement_class->change_state = gst_cacasink_change_state;
- g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_SCREEN_WIDTH, g_param_spec_int ("screen-width", "screen_width", "screen_width", G_MININT, G_MAXINT, 0, G_PARAM_READABLE)); /* CHECKME */
- g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_SCREEN_HEIGHT, g_param_spec_int ("screen-height", "screen_height", "screen_height", G_MININT, G_MAXINT, 0, G_PARAM_READABLE)); /* CHECKME */
- g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_DITHER,
+ g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_SCREEN_WIDTH,
+ g_param_spec_int ("screen-width", "Screen Width",
+ "The width of the screen", 0, G_MAXINT, GST_CACA_DEFAULT_SCREEN_WIDTH,
+ G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
+ g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_SCREEN_HEIGHT,
+ g_param_spec_int ("screen-height", "Screen Height",
+ "The height of the screen", 0, G_MAXINT,
+ GST_CACA_DEFAULT_SCREEN_HEIGHT,
+ G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
+ g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_DITHER,
g_param_spec_enum ("dither", "Dither Type", "Set type of Dither",
- GST_TYPE_CACADITHER, CACA_DITHERING_NONE, G_PARAM_READWRITE));
- g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_ANTIALIASING,
- g_param_spec_boolean ("anti-aliasing", "Anti-Aliasing",
- "Enables Anti-Aliasing", TRUE, G_PARAM_READWRITE));
+ GST_TYPE_CACADITHER, GST_CACA_DEFAULT_DITHER,
+ G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+ g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_ANTIALIASING,
+ g_param_spec_boolean ("anti-aliasing", "Anti Aliasing",
+ "Enables Anti-Aliasing", GST_CACA_DEFAULT_ANTIALIASING,
+ G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+
+ gstelement_class->change_state = gst_cacasink_change_state;
+
+ gst_element_class_set_static_metadata (gstelement_class,
+ "A colored ASCII art video sink", "Sink/Video",
+ "A colored ASCII art videosink", "Zeeshan Ali <zak147@yahoo.com>");
+ gst_element_class_add_static_pad_template (gstelement_class, &sink_template);
gstbasesink_class->set_caps = GST_DEBUG_FUNCPTR (gst_cacasink_setcaps);
gstbasesink_class->get_times = GST_DEBUG_FUNCPTR (gst_cacasink_get_times);
gst_cacasink_setcaps (GstBaseSink * basesink, GstCaps * caps)
{
GstCACASink *cacasink;
- GstStructure *structure;
+ GstVideoInfo info;
+ guint bpp, red_mask, green_mask, blue_mask;
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;
- }
-
- else if (cacasink->bpp == 32) {
- cacasink->red_mask = GUINT32_FROM_BE (cacasink->red_mask);
- cacasink->green_mask = GUINT32_FROM_BE (cacasink->green_mask);
- cacasink->blue_mask = GUINT32_FROM_BE (cacasink->blue_mask);
- }
-
- else if (cacasink->bpp == 16 || cacasink->bpp == 15) {
- cacasink->red_mask = GUINT16_FROM_BE (cacasink->red_mask);
- cacasink->green_mask = GUINT16_FROM_BE (cacasink->green_mask);
- cacasink->blue_mask = GUINT16_FROM_BE (cacasink->blue_mask);
+ if (!gst_video_info_from_caps (&info, caps))
+ goto caps_error;
+
+ switch (GST_VIDEO_INFO_FORMAT (&info)) {
+ case GST_VIDEO_FORMAT_RGB:
+ case GST_VIDEO_FORMAT_BGR:
+ case GST_VIDEO_FORMAT_RGBx:
+ case GST_VIDEO_FORMAT_xRGB:
+ case GST_VIDEO_FORMAT_BGRx:
+ case GST_VIDEO_FORMAT_xBGR:
+ bpp = 8 * info.finfo->pixel_stride[0];
+ red_mask = 0xff << (8 * info.finfo->poffset[GST_VIDEO_COMP_R]);
+ green_mask = 0xff << (8 * info.finfo->poffset[GST_VIDEO_COMP_G]);
+ blue_mask = 0xff << (8 * info.finfo->poffset[GST_VIDEO_COMP_B]);
+ 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;
- cacasink->bitmap = caca_create_bitmap (cacasink->bpp,
- cacasink->width,
- cacasink->height,
- cacasink->width * cacasink->bpp / 8,
- cacasink->red_mask, cacasink->green_mask, cacasink->blue_mask, 0);
+ return TRUE;
- if (!cacasink->bitmap) {
+ /* 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;
}
-
- return TRUE;
}
static void
gst_cacasink_init (GstCACASink * cacasink)
{
- GstPad *pad;
-
- pad = GST_BASE_SINK_PAD (cacasink);
- /* gst_pad_set_fixatecaps_function (pad, gst_cacasink_fixate); */
-
cacasink->screen_width = GST_CACA_DEFAULT_SCREEN_WIDTH;
cacasink->screen_height = GST_CACA_DEFAULT_SCREEN_HEIGHT;
- cacasink->bpp = GST_CACA_DEFAULT_BPP;
- cacasink->red_mask = GST_CACA_DEFAULT_RED_MASK;
- cacasink->green_mask = GST_CACA_DEFAULT_GREEN_MASK;
- cacasink->blue_mask = GST_CACA_DEFAULT_BLUE_MASK;
+
+ cacasink->dither = GST_CACA_DEFAULT_DITHER;
+ cacasink->antialiasing = GST_CACA_DEFAULT_ANTIALIASING;
}
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_BUFFER_DATA (buffer));
+ 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 void
cacasink = GST_CACASINK (object);
switch (prop_id) {
- case ARG_DITHER:{
+ case PROP_DITHER:{
cacasink->dither = g_value_get_enum (value);
caca_set_dithering (cacasink->dither + CACA_DITHERING_NONE);
break;
}
- case ARG_ANTIALIASING:{
+ case PROP_ANTIALIASING:{
cacasink->antialiasing = g_value_get_boolean (value);
if (cacasink->antialiasing) {
caca_set_feature (CACA_ANTIALIASING_MAX);
- }
-
- else {
+ } else {
caca_set_feature (CACA_ANTIALIASING_MIN);
}
break;
cacasink = GST_CACASINK (object);
switch (prop_id) {
- case ARG_SCREEN_WIDTH:{
+ case PROP_SCREEN_WIDTH:{
g_value_set_int (value, cacasink->screen_width);
break;
}
- case ARG_SCREEN_HEIGHT:{
+ case PROP_SCREEN_HEIGHT:{
g_value_set_int (value, cacasink->screen_height);
break;
}
- case ARG_DITHER:{
+ case PROP_DITHER:{
g_value_set_enum (value, cacasink->dither);
break;
}
- case ARG_ANTIALIASING:{
+ case PROP_ANTIALIASING:{
g_value_set_boolean (value, cacasink->antialiasing);
break;
}
gst_cacasink_open (GstCACASink * cacasink)
{
cacasink->bitmap = NULL;
- caca_init ();
+
+ if (caca_init () < 0)
+ goto init_failed;
cacasink->screen_width = caca_get_width ();
cacasink->screen_height = caca_get_height ();
caca_set_dithering (CACA_DITHERING_NONE);
return TRUE;
+
+ /* ERRORS */
+init_failed:
+ {
+ GST_ELEMENT_ERROR (cacasink, RESOURCE, OPEN_WRITE, (NULL),
+ ("caca_init() failed"));
+ return FALSE;
+ }
}
static void
{
GstStateChangeReturn ret;
-
switch (transition) {
case GST_STATE_CHANGE_READY_TO_PAUSED:
if (!gst_cacasink_open (GST_CACASINK (element)))
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
- "cacasink",
+ cacasink,
"Colored ASCII Art video sink",
plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)
projects / platform / upstream / gst-plugins-good.git / blobdiff