gstreamer/gst/frei0r/gstfrei0r.c

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/* GStreamer
* Copyright (C) 2009 Sebastian Dröge <sebastian.droege@collabora.co.uk>
*
* 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstfrei0r.h"
#include "gstfrei0rfilter.h"
#include "gstfrei0rsrc.h"
#include "gstfrei0rmixer.h"
#include <string.h>
#include <gmodule.h>
GST_DEBUG_CATEGORY (frei0r_debug);
#define GST_CAT_DEFAULT frei0r_debug
static GstStaticCaps bgra8888_caps = GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE
("BGRA"));
static GstStaticCaps rgba8888_caps = GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE
("RGBA"));
static GstStaticCaps packed32_caps = GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE
("{ BGRA, RGBA, ABGR, ARGB, BGRx, RGBx, xBGR, xRGB, AYUV }"));
GstCaps *
gst_frei0r_caps_from_color_model (gint color_model)
{
switch (color_model) {
case F0R_COLOR_MODEL_BGRA8888:
return gst_static_caps_get (&bgra8888_caps);
case F0R_COLOR_MODEL_RGBA8888:
return gst_static_caps_get (&rgba8888_caps);
case F0R_COLOR_MODEL_PACKED32:
return gst_static_caps_get (&packed32_caps);
default:
break;
}
return NULL;
}
void
gst_frei0r_klass_install_properties (GObjectClass * gobject_class,
GstFrei0rFuncTable * ftable, GstFrei0rProperty * properties,
gint n_properties)
{
gint i, count = 1;
f0r_instance_t *instance = ftable->construct (640, 480);
g_assert (instance);
for (i = 0; i < n_properties; i++) {
f0r_param_info_t *param_info = &properties[i].info;
gchar *prop_name;
ftable->get_param_info (param_info, i);
if (!param_info->name) {
GST_ERROR ("Property %d of %s without a valid name", i,
g_type_name (G_TYPE_FROM_CLASS (gobject_class)));
continue;
}
prop_name = g_ascii_strdown (param_info->name, -1);
g_strcanon (prop_name, G_CSET_A_2_Z G_CSET_a_2_z G_CSET_DIGITS "-+", '-');
/* satisfy glib2 (argname[0] must be [A-Za-z]) */
if (!((prop_name[0] >= 'a' && prop_name[0] <= 'z') ||
(prop_name[0] >= 'A' && prop_name[0] <= 'Z'))) {
gchar *tempstr = prop_name;
prop_name = g_strconcat ("param-", prop_name, NULL);
g_free (tempstr);
}
properties[i].prop_id = count;
properties[i].prop_idx = i;
ftable->get_param_value (instance, &properties[i].default_value, i);
if (param_info->type == F0R_PARAM_STRING)
properties[i].default_value.data.s =
g_strdup (properties[i].default_value.data.s);
switch (param_info->type) {
case F0R_PARAM_BOOL:
g_object_class_install_property (gobject_class, count++,
g_param_spec_boolean (prop_name, param_info->name,
param_info->explanation,
properties[i].default_value.data.b ? TRUE : FALSE,
G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE));
properties[i].n_prop_ids = 1;
break;
case F0R_PARAM_DOUBLE:{
gdouble def = properties[i].default_value.data.d;
/* If the default is NAN, +-INF we use 0.0 */
if (!(def >= 0.0 && def <= 1.0))
def = 0.0;
g_object_class_install_property (gobject_class, count++,
g_param_spec_double (prop_name, param_info->name,
param_info->explanation, 0.0, 1.0, def,
G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE));
properties[i].n_prop_ids = 1;
break;
}
case F0R_PARAM_STRING:
g_object_class_install_property (gobject_class, count++,
g_param_spec_string (prop_name, param_info->name,
param_info->explanation, properties[i].default_value.data.s,
G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE));
properties[i].n_prop_ids = 1;
break;
case F0R_PARAM_COLOR:{
gchar *prop_name_full;
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gchar *prop_nick_full;
gdouble def;
def = properties[i].default_value.data.color.r;
/* If the default is out of range we use 0.0 */
if (!(def <= 1.0 && def >= 0.0))
def = 0.0;
prop_name_full = g_strconcat (prop_name, "-r", NULL);
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prop_nick_full = g_strconcat (param_info->name, "-R", NULL);
g_object_class_install_property (gobject_class, count++,
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g_param_spec_float (prop_name_full, prop_nick_full,
param_info->explanation, 0.0, 1.0, def,
G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE));
g_free (prop_name_full);
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g_free (prop_nick_full);
def = properties[i].default_value.data.color.g;
/* If the default is out of range we use 0.0 */
if (!(def <= 1.0 && def >= 0.0))
def = 0.0;
prop_name_full = g_strconcat (prop_name, "-g", NULL);
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prop_nick_full = g_strconcat (param_info->name, "-G", NULL);
g_object_class_install_property (gobject_class, count++,
g_param_spec_float (prop_name_full, param_info->name,
param_info->explanation, 0.0, 1.0, def,
G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE));
g_free (prop_name_full);
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g_free (prop_nick_full);
def = properties[i].default_value.data.color.b;
/* If the default is out of range we use 0.0 */
if (!(def <= 1.0 && def >= 0.0))
def = 0.0;
prop_name_full = g_strconcat (prop_name, "-b", NULL);
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prop_nick_full = g_strconcat (param_info->name, "-B", NULL);
g_object_class_install_property (gobject_class, count++,
g_param_spec_float (prop_name_full, param_info->name,
param_info->explanation, 0.0, 1.0, def,
G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE));
g_free (prop_name_full);
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g_free (prop_nick_full);
properties[i].n_prop_ids = 3;
break;
}
case F0R_PARAM_POSITION:{
gchar *prop_name_full;
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gchar *prop_nick_full;
gdouble def;
def = properties[i].default_value.data.position.x;
/* If the default is out of range we use 0.0 */
if (!(def <= 1.0 && def >= 0.0))
def = 0.0;
prop_name_full = g_strconcat (prop_name, "-x", NULL);
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prop_nick_full = g_strconcat (param_info->name, "-X", NULL);
g_object_class_install_property (gobject_class, count++,
g_param_spec_double (prop_name_full, param_info->name,
param_info->explanation, 0.0, 1.0, def,
G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE));
g_free (prop_name_full);
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g_free (prop_nick_full);
def = properties[i].default_value.data.position.y;
/* If the default is out of range we use 0.0 */
if (!(def <= 1.0 && def >= 0.0))
def = 0.0;
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prop_name_full = g_strconcat (prop_name, "-Y", NULL);
prop_nick_full = g_strconcat (param_info->name, "-X", NULL);
g_object_class_install_property (gobject_class, count++,
g_param_spec_double (prop_name_full, param_info->name,
param_info->explanation, 0.0, 1.0, def,
G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE));
g_free (prop_name_full);
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g_free (prop_nick_full);
properties[i].n_prop_ids = 2;
break;
}
default:
g_assert_not_reached ();
break;
}
g_free (prop_name);
}
ftable->destruct (instance);
}
GstFrei0rPropertyValue *
gst_frei0r_property_cache_init (GstFrei0rProperty * properties,
gint n_properties)
{
gint i;
GstFrei0rPropertyValue *ret = g_new0 (GstFrei0rPropertyValue, n_properties);
for (i = 0; i < n_properties; i++) {
memcpy (&ret[i].data, &properties[i].default_value,
sizeof (GstFrei0rPropertyValue));
if (properties[i].info.type == F0R_PARAM_STRING)
ret[i].data.s = g_strdup (ret[i].data.s);
}
return ret;
}
void
gst_frei0r_property_cache_free (GstFrei0rProperty * properties,
GstFrei0rPropertyValue * property_cache, gint n_properties)
{
gint i;
for (i = 0; i < n_properties; i++) {
if (properties[i].info.type == F0R_PARAM_STRING)
g_free (property_cache[i].data.s);
}
g_free (property_cache);
}
f0r_instance_t *
gst_frei0r_instance_construct (GstFrei0rFuncTable * ftable,
GstFrei0rProperty * properties, gint n_properties,
GstFrei0rPropertyValue * property_cache, gint width, gint height)
{
f0r_instance_t *instance = ftable->construct (width, height);
gint i;
for (i = 0; i < n_properties; i++) {
if (properties[i].info.type == F0R_PARAM_STRING)
ftable->set_param_value (instance, property_cache[i].data.s, i);
else
ftable->set_param_value (instance, &property_cache[i].data, i);
}
return instance;
}
gboolean
gst_frei0r_get_property (f0r_instance_t * instance, GstFrei0rFuncTable * ftable,
GstFrei0rProperty * properties, gint n_properties,
GstFrei0rPropertyValue * property_cache, guint prop_id, GValue * value)
{
gint i;
GstFrei0rProperty *prop = NULL;
for (i = 0; i < n_properties; i++) {
if (properties[i].prop_id <= prop_id &&
properties[i].prop_id + properties[i].n_prop_ids > prop_id) {
prop = &properties[i];
break;
}
}
if (!prop)
return FALSE;
switch (prop->info.type) {
case F0R_PARAM_BOOL:{
gdouble d;
if (instance)
ftable->get_param_value (instance, &d, prop->prop_idx);
else
d = property_cache[prop->prop_idx].data.b;
g_value_set_boolean (value, (d < 0.5) ? FALSE : TRUE);
break;
}
case F0R_PARAM_DOUBLE:{
gdouble d;
if (instance)
ftable->get_param_value (instance, &d, prop->prop_idx);
else
d = property_cache[prop->prop_idx].data.d;
g_value_set_double (value, d);
break;
}
case F0R_PARAM_STRING:{
const gchar *s;
if (instance)
ftable->get_param_value (instance, &s, prop->prop_idx);
else
s = property_cache[prop->prop_idx].data.s;
g_value_set_string (value, s);
break;
}
case F0R_PARAM_COLOR:{
f0r_param_color_t color;
if (instance)
ftable->get_param_value (instance, &color, prop->prop_idx);
else
color = property_cache[prop->prop_idx].data.color;
switch (prop_id - prop->prop_id) {
case 0:
g_value_set_float (value, color.r);
break;
case 1:
g_value_set_float (value, color.g);
break;
case 2:
g_value_set_float (value, color.b);
break;
}
break;
}
case F0R_PARAM_POSITION:{
f0r_param_position_t position;
if (instance)
ftable->get_param_value (instance, &position, prop->prop_idx);
else
position = property_cache[prop->prop_idx].data.position;
switch (prop_id - prop->prop_id) {
case 0:
g_value_set_double (value, position.x);
break;
case 1:
g_value_set_double (value, position.y);
break;
}
break;
}
default:
g_assert_not_reached ();
break;
}
return TRUE;
}
gboolean
gst_frei0r_set_property (f0r_instance_t * instance, GstFrei0rFuncTable * ftable,
GstFrei0rProperty * properties, gint n_properties,
GstFrei0rPropertyValue * property_cache, guint prop_id,
const GValue * value)
{
GstFrei0rProperty *prop = NULL;
gint i;
for (i = 0; i < n_properties; i++) {
if (properties[i].prop_id <= prop_id &&
properties[i].prop_id + properties[i].n_prop_ids > prop_id) {
prop = &properties[i];
break;
}
}
if (!prop)
return FALSE;
switch (prop->info.type) {
case F0R_PARAM_BOOL:{
gboolean b = g_value_get_boolean (value);
gdouble d = b ? 1.0 : 0.0;
if (instance)
ftable->set_param_value (instance, &d, prop->prop_idx);
property_cache[prop->prop_idx].data.b = d;
break;
}
case F0R_PARAM_DOUBLE:{
gdouble d = g_value_get_double (value);
if (instance)
ftable->set_param_value (instance, &d, prop->prop_idx);
property_cache[prop->prop_idx].data.d = d;
break;
}
case F0R_PARAM_STRING:{
gchar *s = g_value_dup_string (value);
/* Copies the string */
if (instance)
ftable->set_param_value (instance, s, prop->prop_idx);
property_cache[prop->prop_idx].data.s = s;
break;
}
case F0R_PARAM_COLOR:{
gfloat f = g_value_get_float (value);
f0r_param_color_t *color = &property_cache[prop->prop_idx].data.color;
switch (prop_id - prop->prop_id) {
case 0:
color->r = f;
break;
case 1:
color->g = f;
break;
case 2:
color->b = f;
break;
default:
g_assert_not_reached ();
}
if (instance)
ftable->set_param_value (instance, color, prop->prop_idx);
break;
}
case F0R_PARAM_POSITION:{
gdouble d = g_value_get_double (value);
f0r_param_position_t *position =
&property_cache[prop->prop_idx].data.position;
switch (prop_id - prop->prop_id) {
case 0:
position->x = d;
break;
case 1:
position->y = d;
break;
default:
g_assert_not_reached ();
}
if (instance)
ftable->set_param_value (instance, position, prop->prop_idx);
break;
}
default:
g_assert_not_reached ();
break;
}
return TRUE;
}
static gboolean
register_plugin (GstPlugin * plugin, const gchar * vendor,
const gchar * filename)
{
GModule *module;
GstFrei0rPluginRegisterReturn ret = GST_FREI0R_PLUGIN_REGISTER_RETURN_FAILED;
GstFrei0rFuncTable ftable = { NULL, };
gint i;
f0r_plugin_info_t info = { NULL, };
f0r_instance_t *instance = NULL;
GST_DEBUG ("Registering plugin '%s'", filename);
module = g_module_open (filename, G_MODULE_BIND_LAZY | G_MODULE_BIND_LOCAL);
if (!module) {
GST_WARNING ("Failed to load plugin");
return FALSE;
}
if (!g_module_symbol (module, "f0r_init", (gpointer *) & ftable.init)) {
GST_INFO ("No frei0r plugin");
g_module_close (module);
return FALSE;
}
if (!g_module_symbol (module, "f0r_deinit", (gpointer *) & ftable.deinit) ||
!g_module_symbol (module, "f0r_construct",
(gpointer *) & ftable.construct)
|| !g_module_symbol (module, "f0r_destruct",
(gpointer *) & ftable.destruct)
|| !g_module_symbol (module, "f0r_get_plugin_info",
(gpointer *) & ftable.get_plugin_info)
|| !g_module_symbol (module, "f0r_get_param_info",
(gpointer *) & ftable.get_param_info)
|| !g_module_symbol (module, "f0r_set_param_value",
(gpointer *) & ftable.set_param_value)
|| !g_module_symbol (module, "f0r_get_param_value",
(gpointer *) & ftable.get_param_value))
goto invalid_frei0r_plugin;
/* One of these must exist */
g_module_symbol (module, "f0r_update", (gpointer *) & ftable.update);
g_module_symbol (module, "f0r_update2", (gpointer *) & ftable.update2);
if (!ftable.init ()) {
GST_WARNING ("Failed to initialize plugin");
g_module_close (module);
return FALSE;
}
if (!ftable.update && !ftable.update2)
goto invalid_frei0r_plugin;
ftable.get_plugin_info (&info);
if (info.frei0r_version > 1) {
GST_WARNING ("Unsupported frei0r version %d", info.frei0r_version);
ftable.deinit ();
g_module_close (module);
return FALSE;
}
if (info.color_model > F0R_COLOR_MODEL_PACKED32) {
GST_WARNING ("Unsupported color model %d", info.color_model);
ftable.deinit ();
g_module_close (module);
return FALSE;
}
for (i = 0; i < info.num_params; i++) {
f0r_param_info_t pinfo = { NULL, };
ftable.get_param_info (&pinfo, i);
if (pinfo.type > F0R_PARAM_STRING) {
GST_WARNING ("Unsupported parameter type %d", pinfo.type);
ftable.deinit ();
g_module_close (module);
return FALSE;
}
}
instance = ftable.construct (640, 480);
if (!instance) {
GST_WARNING ("Failed to instanciate plugin '%s'", info.name);
ftable.deinit ();
g_module_close (module);
return FALSE;
}
ftable.destruct (instance);
switch (info.plugin_type) {
case F0R_PLUGIN_TYPE_FILTER:
ret = gst_frei0r_filter_register (plugin, vendor, &info, &ftable);
break;
case F0R_PLUGIN_TYPE_SOURCE:
ret = gst_frei0r_src_register (plugin, vendor, &info, &ftable);
break;
case F0R_PLUGIN_TYPE_MIXER2:
case F0R_PLUGIN_TYPE_MIXER3:
ret = gst_frei0r_mixer_register (plugin, vendor, &info, &ftable);
break;
default:
break;
}
switch (ret) {
case GST_FREI0R_PLUGIN_REGISTER_RETURN_OK:
return TRUE;
case GST_FREI0R_PLUGIN_REGISTER_RETURN_FAILED:
GST_ERROR ("Failed to register frei0r plugin");
ftable.deinit ();
g_module_close (module);
return FALSE;
case GST_FREI0R_PLUGIN_REGISTER_RETURN_ALREADY_REGISTERED:
GST_DEBUG ("frei0r plugin already registered");
ftable.deinit ();
g_module_close (module);
return TRUE;
default:
g_return_val_if_reached (FALSE);
}
g_return_val_if_reached (FALSE);
invalid_frei0r_plugin:
GST_ERROR ("Invalid frei0r plugin");
ftable.deinit ();
g_module_close (module);
return FALSE;
}
static gboolean
register_plugins (GstPlugin * plugin, GHashTable * plugin_names,
const gchar * path, const gchar * base_path)
{
GDir *dir;
gchar *filename;
const gchar *entry_name;
gboolean ret = TRUE;
GST_DEBUG ("Scanning directory '%s' for frei0r plugins", path);
dir = g_dir_open (path, 0, NULL);
if (!dir)
return FALSE;
while ((entry_name = g_dir_read_name (dir))) {
gchar *tmp, *vendor = NULL;
gchar *hashtable_name;
tmp = g_strdup (path + strlen (base_path));
if (*tmp == G_DIR_SEPARATOR && *(tmp + 1))
vendor = tmp + 1;
else if (*tmp)
vendor = tmp;
if (vendor)
hashtable_name = g_strconcat (vendor, "-", entry_name, NULL);
else
hashtable_name = g_strdup (entry_name);
if (g_hash_table_lookup_extended (plugin_names, hashtable_name, NULL, NULL)) {
g_free (hashtable_name);
continue;
}
filename = g_build_filename (path, entry_name, NULL);
if ((g_str_has_suffix (filename, G_MODULE_SUFFIX)
#ifdef GST_EXTRA_MODULE_SUFFIX
|| g_str_has_suffix (filename, GST_EXTRA_MODULE_SUFFIX)
#endif
) && g_file_test (filename, G_FILE_TEST_IS_REGULAR)) {
gboolean this_ret;
this_ret = register_plugin (plugin, vendor, filename);
if (this_ret)
g_hash_table_insert (plugin_names, g_strdup (hashtable_name), NULL);
ret = ret && this_ret;
} else if (g_file_test (filename, G_FILE_TEST_IS_DIR)) {
ret = ret && register_plugins (plugin, plugin_names, filename, base_path);
}
g_free (filename);
g_free (hashtable_name);
g_free (tmp);
}
g_dir_close (dir);
return ret;
}
static gboolean
plugin_init (GstPlugin * plugin)
{
const gchar *homedir;
gchar *path;
GHashTable *plugin_names;
const gchar *frei0r_path;
GST_DEBUG_CATEGORY_INIT (frei0r_debug, "frei0r", 0, "frei0r");
gst_plugin_add_dependency_simple (plugin,
"FREI0R_PATH:HOME/.frei0r-1/lib",
"/usr/lib/frei0r-1:/usr/local/lib/frei0r-1:"
"/usr/lib32/frei0r-1:/usr/local/lib32/frei0r-1:"
"/usr/lib64/frei0r-1:/usr/local/lib64/frei0r-1",
NULL, GST_PLUGIN_DEPENDENCY_FLAG_RECURSE);
plugin_names =
g_hash_table_new_full ((GHashFunc) g_str_hash, (GEqualFunc) g_str_equal,
(GDestroyNotify) g_free, NULL);
frei0r_path = g_getenv ("FREI0R_PATH");
if (frei0r_path && *frei0r_path) {
gchar **p, **paths = g_strsplit (frei0r_path, ":", -1);
for (p = paths; *p; p++) {
register_plugins (plugin, plugin_names, *p, *p);
}
g_strfreev (paths);
} else {
#define register_plugins2(plugin, pn, p) register_plugins(plugin, pn, p, p)
homedir = g_get_home_dir ();
path = g_build_filename (homedir, ".frei0r-1", "lib", NULL);
register_plugins2 (plugin, plugin_names, path);
g_free (path);
register_plugins2 (plugin, plugin_names, "/usr/local/lib/frei0r-1");
register_plugins2 (plugin, plugin_names, "/usr/lib/frei0r-1");
register_plugins2 (plugin, plugin_names, "/usr/local/lib32/frei0r-1");
register_plugins2 (plugin, plugin_names, "/usr/lib32/frei0r-1");
register_plugins2 (plugin, plugin_names, "/usr/local/lib64/frei0r-1");
register_plugins2 (plugin, plugin_names, "/usr/lib64/frei0r-1");
#undef register_plugins2
}
g_hash_table_unref (plugin_names);
return TRUE;
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
frei0r,
"frei0r plugin library",
plugin_init, VERSION, "LGPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)