+++ /dev/null
-/* Gnome-Streamer
- * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * 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.
- */
-
-#include <config.h>
-
-#include <string.h>
-#include <sys/time.h>
-
-#include "aasink.h"
-
-static GstElementDetails gst_aasink_details = {
- "Video sink",
- "Sink/Video",
- "An ASCII art videosink",
- VERSION,
- "Wim Taymans <wim.taymans@chello.be>",
- "(C) 2001",
-};
-
-/* aasink signals and args */
-enum {
- SIGNAL_FRAME_DISPLAYED,
- SIGNAL_HAVE_SIZE,
- LAST_SIGNAL
-};
-
-
-enum {
- ARG_0,
- ARG_WIDTH,
- ARG_HEIGHT,
- ARG_DRIVER,
- ARG_DITHER,
- ARG_BRIGHTNESS,
- ARG_CONTRAST,
- ARG_GAMMA,
- ARG_INVERSION,
- ARG_RANDOMVAL,
- ARG_FRAMES_DISPLAYED,
- ARG_FRAME_TIME,
-};
-
-GST_PADTEMPLATE_FACTORY (sink_template,
- "sink",
- GST_PAD_SINK,
- GST_PAD_ALWAYS,
- GST_CAPS_NEW (
- "aasink_caps",
- "video/raw",
- "format", GST_PROPS_FOURCC (GST_STR_FOURCC ("I420"))
- )
-)
-
-static void gst_aasink_class_init (GstAASinkClass *klass);
-static void gst_aasink_init (GstAASink *aasink);
-
-static void gst_aasink_chain (GstPad *pad, GstBuffer *buf);
-
-static void gst_aasink_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec);
-static void gst_aasink_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec);
-
-static GstElementStateReturn gst_aasink_change_state (GstElement *element);
-
-static GstElementClass *parent_class = NULL;
-static guint gst_aasink_signals[LAST_SIGNAL] = { 0 };
-
-GType
-gst_aasink_get_type (void)
-{
- static GType aasink_type = 0;
-
- if (!aasink_type) {
- static const GTypeInfo aasink_info = {
- sizeof(GstAASinkClass), NULL, NULL, (GClassInitFunc)gst_aasink_class_init, NULL, NULL,
- sizeof(GstAASink),
- 0,
- (GInstanceInitFunc)gst_aasink_init,
- };
- aasink_type = g_type_register_static(GST_TYPE_ELEMENT, "GstAASink", &aasink_info, 0);
- }
- return aasink_type;
-}
-
-#define GST_TYPE_AADRIVERS (gst_aasink_drivers_get_type())
-static GType
-gst_aasink_drivers_get_type (void)
-{
- static GType driver_type = 0;
- if (!driver_type) {
- GEnumValue *drivers;
- const struct aa_driver *driver;
- gint i = 0;
-
- driver = aa_drivers[i++];
- while (driver) {
- driver = aa_drivers[i++];
- }
-
- drivers = g_new0(GEnumValue, i);
-
- i = 0;
- driver = aa_drivers[i];
- while (driver) {
- drivers[i].value = i;
- drivers[i].value_name = g_strdup (driver->shortname);
- drivers[i].value_nick = g_strdup (driver->name);
- i++;
- driver = aa_drivers[i];
- }
- drivers[i].value = 0;
- drivers[i].value_name = NULL;
- drivers[i].value_nick = NULL;
-
- driver_type = g_enum_register_static ("GstAASinkDrivers", drivers);
- }
- return driver_type;
-}
-
-#define GST_TYPE_AADITHER (gst_aasink_dither_get_type())
-static GType
-gst_aasink_dither_get_type (void)
-{
- static GType dither_type = 0;
- if (!dither_type) {
- GEnumValue *ditherers;
- gint i = 0;
-
- while (aa_dithernames[i]) {
- i++;
- }
-
- ditherers = g_new0(GEnumValue, i);
-
- i = 0;
- while (aa_dithernames[i]) {
- ditherers[i].value = i;
- ditherers[i].value_name = g_strdup (aa_dithernames[i]);
- ditherers[i].value_nick = g_strdup (aa_dithernames[i]);
- i++;
- }
- ditherers[i].value = 0;
- ditherers[i].value_name = NULL;
- ditherers[i].value_nick = NULL;
-
- dither_type = g_enum_register_static ("GstAASinkDitherers", ditherers);
- }
- return dither_type;
-}
-
-static void
-gst_aasink_class_init (GstAASinkClass *klass)
-{
- GObjectClass *gobject_class;
- GstElementClass *gstelement_class;
-
- gobject_class = (GObjectClass*)klass;
- gstelement_class = (GstElementClass*)klass;
-
- parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
-
- g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_WIDTH,
- g_param_spec_int("width","width","width",
- G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); /* CHECKME */
- g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_HEIGHT,
- g_param_spec_int("height","height","height",
- G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); /* CHECKME */
- g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_DRIVER,
- g_param_spec_enum("driver","driver","driver",
- GST_TYPE_AADRIVERS,0,G_PARAM_READWRITE)); /* CHECKME! */
- g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_DITHER,
- g_param_spec_enum("dither","dither","dither",
- GST_TYPE_AADITHER,0,G_PARAM_READWRITE)); /* CHECKME! */
- g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_BRIGHTNESS,
- g_param_spec_int("brightness","brightness","brightness",
- G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); /* CHECKME */
- g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_CONTRAST,
- g_param_spec_int("contrast","contrast","contrast",
- G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); /* CHECKME */
- g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_GAMMA,
- g_param_spec_float("gamma","gamma","gamma",
- 0.0,5.0,1.0,G_PARAM_READWRITE)); /* CHECKME */
- g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_INVERSION,
- g_param_spec_boolean("inversion","inversion","inversion",
- TRUE,G_PARAM_READWRITE)); /* CHECKME */
- g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_RANDOMVAL,
- g_param_spec_int("randomval","randomval","randomval",
- G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); /* CHECKME */
- g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_FRAMES_DISPLAYED,
- g_param_spec_int("frames_displayed","frames_displayed","frames_displayed",
- G_MININT,G_MAXINT,0,G_PARAM_READABLE)); /* CHECKME */
- g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_FRAME_TIME,
- g_param_spec_int("frame_time","frame_time","frame_time",
- G_MININT,G_MAXINT,0,G_PARAM_READABLE)); /* CHECKME */
-
- gobject_class->set_property = gst_aasink_set_property;
- gobject_class->get_property = gst_aasink_get_property;
-
- gst_aasink_signals[SIGNAL_FRAME_DISPLAYED] =
- g_signal_new ("frame_displayed", G_TYPE_FROM_CLASS(klass), G_SIGNAL_RUN_LAST,
- G_STRUCT_OFFSET (GstAASinkClass, frame_displayed), NULL, NULL,
- g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0);
- gst_aasink_signals[SIGNAL_HAVE_SIZE] =
- g_signal_new ("have_size", G_TYPE_FROM_CLASS(klass), G_SIGNAL_RUN_LAST,
- G_STRUCT_OFFSET (GstAASinkClass, have_size), NULL, NULL,
- gst_marshal_VOID__INT_INT, G_TYPE_NONE, 2,
- G_TYPE_UINT, G_TYPE_UINT);
-
- gstelement_class->change_state = gst_aasink_change_state;
-}
-
-static void
-gst_aasink_newcaps (GstPad *pad, GstCaps *caps)
-{
- GstAASink *aasink;
- gulong print_format;
-
- aasink = GST_AASINK (gst_pad_get_parent (pad));
-
- aasink->width = gst_caps_get_int (caps, "width");
- aasink->height = gst_caps_get_int (caps, "height");
-
- print_format = GULONG_FROM_LE (aasink->format);
-
- GST_DEBUG (0, "aasink: setting %08lx (%4.4s)\n", aasink->format, (gchar*)&print_format);
-
- g_signal_emit( G_OBJECT (aasink), gst_aasink_signals[SIGNAL_HAVE_SIZE], 0,
- aasink->width, aasink->height);
-}
-
-static void
-gst_aasink_init (GstAASink *aasink)
-{
- aasink->sinkpad = gst_pad_new_from_template (
- GST_PADTEMPLATE_GET (sink_template), "sink");
- gst_element_add_pad (GST_ELEMENT (aasink), aasink->sinkpad);
- gst_pad_set_chain_function (aasink->sinkpad, gst_aasink_chain);
- gst_pad_set_newcaps_function (aasink->sinkpad, gst_aasink_newcaps);
-
- aasink->clock = gst_clock_get_system();
- gst_clock_register(aasink->clock, GST_OBJECT(aasink));
-
- memcpy(&aasink->ascii_surf, &aa_defparams, sizeof (struct aa_hardware_params));
- aasink->ascii_parms.bright = 0;
- aasink->ascii_parms.contrast = 16;
- aasink->ascii_parms.gamma = 1.0;
- aasink->ascii_parms.dither = 0;
- aasink->ascii_parms.inversion = 0;
- aasink->ascii_parms.randomval = 0;
- aasink->aa_driver = 0;
-
- aasink->width = -1;
- aasink->height = -1;
-
- GST_FLAG_SET(aasink, GST_ELEMENT_THREAD_SUGGESTED);
-}
-
-static void
-gst_aasink_scale (GstAASink *aasink, gchar *src, gchar *dest,
- gint sw, gint sh,
- gint dw, gint dh)
-{
- gint ypos, yinc, y;
- gint xpos, xinc, x;
-
- g_return_if_fail ((dw != 0) && (dh != 0));
-
- ypos = 0x10000;
- yinc = (sh << 16) / dh;
- xinc = (sw << 16) / dw;
-
- for (y = dh; y; y--) {
- while (ypos > 0x10000) {
- ypos -= 0x10000;
- src += sw;
- }
- xpos = 0x10000;
- {
- guchar *destp = dest;
- guchar *srcp = src;
-
- for ( x=dw; x; x-- ) {
- while (xpos >= 0x10000L) {
- srcp++;
- xpos -= 0x10000L;
- }
- *destp++ = *srcp;
- xpos += xinc;
- }
- }
- dest += dw;
- ypos += yinc;
- }
-}
-
-static void
-gst_aasink_chain (GstPad *pad, GstBuffer *buf)
-{
- GstAASink *aasink;
- GstClockTimeDiff jitter;
-
- g_return_if_fail (pad != NULL);
- g_return_if_fail (GST_IS_PAD (pad));
- g_return_if_fail (buf != NULL);
-
- aasink = GST_AASINK (gst_pad_get_parent (pad));
-
- gst_aasink_scale (aasink,
- GST_BUFFER_DATA (buf), /* src */
- aa_image (aasink->context), /* dest */
- aasink->width, /* sw */
- aasink->height, /* sh */
- aa_imgwidth (aasink->context), /* dw */
- aa_imgheight (aasink->context)); /* dh */
-
- if (!GST_BUFFER_FLAG_IS_SET(buf, GST_BUFFER_FLUSH)) {
- GST_DEBUG (0,"videosink: clock wait: %llu\n", GST_BUFFER_TIMESTAMP(buf));
-
- jitter = gst_clock_current_diff(aasink->clock, GST_BUFFER_TIMESTAMP (buf));
-
- if (jitter > 500000 || jitter < -500000)
- {
- GST_DEBUG (0, "jitter: %lld\n", jitter);
- gst_clock_set (aasink->clock, GST_BUFFER_TIMESTAMP (buf));
- }
- else {
- gst_clock_wait(aasink->clock, GST_BUFFER_TIMESTAMP(buf), GST_OBJECT(aasink));
- }
- }
-
- aa_render (aasink->context, &aasink->ascii_parms,
- 0, 0, aa_imgwidth (aasink->context), aa_imgheight (aasink->context));
- aa_flush (aasink->context);
- aa_getevent (aasink->context, FALSE);
-
- g_signal_emit(G_OBJECT(aasink),gst_aasink_signals[SIGNAL_FRAME_DISPLAYED], 0);
-
- gst_buffer_unref(buf);
-}
-
-
-static void
-gst_aasink_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
-{
- GstAASink *aasink;
-
- /* it's not null if we got it, but it might not be ours */
- g_return_if_fail (GST_IS_AASINK (object));
-
- aasink = GST_AASINK (object);
-
- switch (prop_id) {
- case ARG_WIDTH:
- aasink->ascii_surf.width = g_value_get_int (value);
- break;
- case ARG_HEIGHT:
- aasink->ascii_surf.height = g_value_get_int (value);
- break;
- case ARG_DRIVER: {
- aasink->aa_driver = g_value_get_int (value);
- break;
- }
- case ARG_DITHER: {
- aasink->ascii_parms.dither = g_value_get_int (value);
- break;
- }
- case ARG_BRIGHTNESS: {
- aasink->ascii_parms.bright = g_value_get_int (value);
- break;
- }
- case ARG_CONTRAST: {
- aasink->ascii_parms.contrast = g_value_get_int (value);
- break;
- }
- case ARG_GAMMA: {
- aasink->ascii_parms.gamma = g_value_get_float (value);
- break;
- }
- case ARG_INVERSION: {
- aasink->ascii_parms.inversion = g_value_get_boolean (value);
- break;
- }
- case ARG_RANDOMVAL: {
- aasink->ascii_parms.randomval = g_value_get_int (value);
- break;
- }
- default:
- break;
- }
-}
-
-static void
-gst_aasink_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
-{
- GstAASink *aasink;
-
- /* it's not null if we got it, but it might not be ours */
- aasink = GST_AASINK(object);
-
- switch (prop_id) {
- case ARG_WIDTH: {
- g_value_set_int (value, aasink->ascii_surf.width);
- break;
- }
- case ARG_HEIGHT: {
- g_value_set_int (value, aasink->ascii_surf.height);
- break;
- }
- case ARG_DRIVER: {
- g_value_set_int (value, aasink->aa_driver);
- break;
- }
- case ARG_DITHER: {
- g_value_set_int (value, aasink->ascii_parms.dither);
- break;
- }
- case ARG_BRIGHTNESS: {
- g_value_set_int (value, aasink->ascii_parms.bright);
- break;
- }
- case ARG_CONTRAST: {
- g_value_set_int (value, aasink->ascii_parms.contrast);
- break;
- }
- case ARG_GAMMA: {
- g_value_set_float (value, aasink->ascii_parms.gamma);
- break;
- }
- case ARG_INVERSION: {
- g_value_set_int (value, aasink->ascii_parms.inversion);
- break;
- }
- case ARG_RANDOMVAL: {
- g_value_set_boolean (value, aasink->ascii_parms.randomval);
- break;
- }
- case ARG_FRAMES_DISPLAYED: {
- g_value_set_int (value, aasink->frames_displayed);
- break;
- }
- case ARG_FRAME_TIME: {
- g_value_set_int (value, aasink->frame_time/1000000);
- break;
- }
- default: {
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
- }
-}
-
-static gboolean
-gst_aasink_open (GstAASink *aasink)
-{
- g_return_val_if_fail (!GST_FLAG_IS_SET (aasink ,GST_AASINK_OPEN), FALSE);
-
- aa_recommendhidisplay(aa_drivers[aasink->aa_driver]->shortname);
-
- aasink->context = aa_autoinit (&aasink->ascii_surf);
- if (aasink->context == NULL) {
- gst_element_error (GST_ELEMENT (aasink),
- g_strdup("opening aalib context"));
- return FALSE;
- }
- aa_autoinitkbd(aasink->context, 0);
- aa_resizehandler(aasink->context, (void *)aa_resize);
-
- GST_FLAG_SET (aasink, GST_AASINK_OPEN);
-
- return TRUE;
-}
-
-static void
-gst_aasink_close (GstAASink *aasink)
-{
- g_return_if_fail (GST_FLAG_IS_SET (aasink ,GST_AASINK_OPEN));
-
- aa_close (aasink->context);
-
- GST_FLAG_UNSET (aasink, GST_AASINK_OPEN);
-}
-
-static GstElementStateReturn
-gst_aasink_change_state (GstElement *element)
-{
- g_return_val_if_fail (GST_IS_AASINK (element), GST_STATE_FAILURE);
-
- if (GST_STATE_PENDING (element) == GST_STATE_NULL) {
- if (GST_FLAG_IS_SET (element, GST_AASINK_OPEN))
- gst_aasink_close (GST_AASINK (element));
- } else {
- if (!GST_FLAG_IS_SET (element, GST_AASINK_OPEN)) {
- if (!gst_aasink_open (GST_AASINK (element)))
- return GST_STATE_FAILURE;
- }
- }
-
- if (GST_ELEMENT_CLASS (parent_class)->change_state)
- return GST_ELEMENT_CLASS (parent_class)->change_state (element);
-
- return GST_STATE_SUCCESS;
-}
-
-static gboolean
-plugin_init (GModule *module, GstPlugin *plugin)
-{
- GstElementFactory *factory;
-
- /* create an elementfactory for the aasink element */
- factory = gst_elementfactory_new("aasink",GST_TYPE_AASINK,
- &gst_aasink_details);
- g_return_val_if_fail(factory != NULL, FALSE);
-
- gst_elementfactory_add_padtemplate (factory,
- GST_PADTEMPLATE_GET (sink_template));
-
- gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));
-
- return TRUE;
-}
-
-GstPluginDesc plugin_desc = {
- GST_VERSION_MAJOR,
- GST_VERSION_MINOR,
- "aasink",
- plugin_init
-};
projects / platform / upstream / gstreamer.git / commitdiff