diff options
Diffstat (limited to 'gst/frei0r')
| -rw-r--r-- | gst/frei0r/Makefile.am | 13 | ||||
| -rw-r--r-- | gst/frei0r/frei0r.h | 567 | ||||
| -rw-r--r-- | gst/frei0r/gstfrei0r.c | 546 | ||||
| -rw-r--r-- | gst/frei0r/gstfrei0r.h | 91 | ||||
| -rw-r--r-- | gst/frei0r/gstfrei0rfilter.c | 255 | ||||
| -rw-r--r-- | gst/frei0r/gstfrei0rfilter.h | 63 |
6 files changed, 1535 insertions, 0 deletions
diff --git a/gst/frei0r/Makefile.am b/gst/frei0r/Makefile.am new file mode 100644 index 00000000..be951cb1 --- /dev/null +++ b/gst/frei0r/Makefile.am @@ -0,0 +1,13 @@ +plugin_LTLIBRARIES = libgstfrei0r.la + +libgstfrei0r_la_SOURCES = \ + gstfrei0r.c \ + gstfrei0rfilter.c + +libgstfrei0r_la_CFLAGS = $(GST_CFLAGS) $(GST_BASE_CFLAGS) $(GST_PLUGINS_BASE_CFLAGS) +libgstfrei0r_la_LIBADD = $(GST_LIBS) $(GST_BASE_LIBS) $(GST_PLUGINS_BASE_LIBS) \ + -lgstvideo-@GST_MAJORMINOR@ +libgstfrei0r_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS) +libgstfrei0r_la_LIBTOOLFLAGS = --tag=disable-static + +noinst_HEADERS = gstfrei0r.h gstfrei0rfilter.h frei0r.h diff --git a/gst/frei0r/frei0r.h b/gst/frei0r/frei0r.h new file mode 100644 index 00000000..f6b81d2b --- /dev/null +++ b/gst/frei0r/frei0r.h @@ -0,0 +1,567 @@ +/** @mainpage frei0r - a minimalistic plugin API for video effects + * + * @section sec_intro Introduction + * + * This is frei0r - a minimalistic plugin API for video effects. + * + * The main emphasis is on simplicity - there are many different applications + * that use video effects, and they all have different requirements regarding + * their internal plugin API. And that's why frei0r does not try to be a + * one-in-all general video plugin API, but instead an API for the most + * common video effects: simple filters, sources and mixers that can be + * controlled by parameters. + * + * It's our hope that this way these simple effects can be shared between + * many applications, avoiding their reimplementation by different + * projects. + * + * On the other hand, this is not meant as a competing standard to + * more ambitious efforts that try to satisfy the needs of many different + * applications and more complex effects. + * + * + * @section sec_overview Overview + * + * If you are new to frei0r, the best thing is probably to have + * a look at the <a href="frei0r_8h-source.html">frei0r header</a>, + * which is quite simple. + * + * After that, you might want to look at the + * <a href="frei0r_8h.html">frei0r functions</a> in more detail. + * + * When developing a new frei0r effect, you have to choose + * - which effect type to use (\ref PLUGIN_TYPE), + * - which color model to use (\ref COLOR_MODEL), and + * - which parameter types (\ref PARAM_TYPE) your effect will support. + * + * To round things up, you should decide whether your effect should have + * an associated icon (\ref icons), and where it will be installed + * (\ref pluglocations). + * + * @section sec_changes Changes + * + * @subsection sec_changes_1_0_1_1 From frei0r 1.0 to frei0r 1.1 + * + * - added specifications for plugin locations + * - added specifications for frei0r icons + * - added RGBA8888 color model + * - added packed32 color model + * - added better specification of color models + * - added string type + * - added bounds to resolution (8 <= width, height <= 2048) + * - width and height must be an integer multiple of 8 + * - frame data must be 16 byte aligned + * - improved update specification (must not change parameters, + * must restore fpu state) + * - added note for applications to ignore effects with unknown fields + * - added new plugin types mixer2 and mixer3 + * - added section about \ref concurrency + */ + + +/** + * \addtogroup pluglocations Plugin Locations + * @section sec_pluglocations Plugin Locations + * + * For Unix platforms there are rules for the location of frei0r plugins. + * + * frei0r 1.x plugin files should be located in + * + * - (1) /usr/lib/frei0r-1/\<vendor\> + * - (2) /usr/local/lib/frei0r-1/\<vendor\> + * - (3) $HOME/.frei0r-1/lib/\<vendor\> + * + * Examples: + * + * - /usr/lib/frei0r-1/mob/flippo.so + * - /usr/lib/frei0r-1/drone/flippo.so + * - /usr/local/lib/frei0r-1/gephex/coma/invert0r.so + * - /home/martin/.frei0r-1/lib/martin/test.so + * + * Like in these examples plugins should be placed in "vendor" subdirs + * to reduce name clashes. + * + * @subsection sec_order Plugin Loading Order + * + * The application shall load plugins in the following order: 3, 2, 1. + * If a name clash occurs (two or more frei0r plugins with identical + * effect name), the plugins in directory 3 have precedence over plugins + * in directory 2, and those in directory 2 have precedence over plugins + * in directory 1. + * + * This makes it possible for users to "override" effects that are + * installed in system wide directories by placing plugins in their + * home directory. + * + * The order of loading plugins inside each of the directories + * 1, 2, and 3 is not defined. + */ + +/** + *\addtogroup icons Icons for frei0r effects + * @section sec_icons Icons for frei0r effects + * + * Each frei0r effect can have an associated icon. + * + * @subsection sec_icon_format Icon Format + * + * The format of frei0r icons must be png. + * Recommended resolution is 64x64. + * The icon filename of an effect with effect name "frei0r" + * must be "frei0r.png". + * + * @subsection sec_icon_location Icon location + * + * The exact location where the application should look for the + * plugin is platform dependant. + * + * For Windows platforms, the icon should be at the same place as + * the plugin containing the effect. + * + * For Unix platforms, the following mapping from plugin location + * to icon location must be used: + * + * Let \<plugin_path\>/\<plugin\> be a frei0r plugin with name \<effect_name\>. + * Then the corresponding icon (if any) shall be located in + * \<icon_path\>/\<effect_name\>.png. + * \<icon_path\> can be obtained in the following way: + * + * @verbatim + <plugin_path> | <icon_path> + ---------------------------------------------------------------------------- + $HOME/.frei0r-1/lib/<vendor> | $HOME/.frei0r-1/icons/<vendor> + /usr/local/lib/frei0r-1/<vendor> | /usr/local/share/frei0r-1/icons/<vendor> + /usr/lib/frei0r-1/<vendor> | /usr/share/frei0r-1/icons/<vendor> + * | <plugin_path> + @endverbatim + * + * (The wildcard '*' stands for any other plugin_path) + * + * For other platforms, no location is defined. We recommend to use the + * plugin path where possible. + */ + +/** + * \addtogroup concurrency Concurrency + * @section sec_concurrency Concurrency + * + * - \ref f0r_init + * - \ref f0r_deinit + * + * These methods must not be called more than once. It is obvious that no + * concurrent calls are allowed. + * + * + * - \ref f0r_get_plugin_info + * - \ref f0r_get_param_info + * - \ref f0r_construct + * - \ref f0r_destruct + * + * Concurrent calls of these functions are allowed. + * + * + * - \ref f0r_set_param_value + * - \ref f0r_get_param_value + * - \ref f0r_update + * - \ref f0r_update2 + * + * If a thread is in one of these methods its allowed for another thread to + * enter one of theses methods for a different effect instance. But for one + * effect instance only one thread is allowed to execute any of these methods. + */ + + + +/** \file + * \brief This file defines the frei0r api, version 1.1. + * + * A conforming plugin must implement and export all functions declared in + * this header. + * + * A conforming application must accept only those plugins which use + * allowed values for the described fields. + */ + +#ifndef INCLUDED_FREI0R_H +#define INCLUDED_FREI0R_H + +#include <inttypes.h> + +/** + * The frei0r API major version + */ +#define FREI0R_MAJOR_VERSION 1 + +/** + * The frei0r API minor version + */ +#define FREI0R_MINOR_VERSION 1 + +//--------------------------------------------------------------------------- + +/** + * f0r_init() is called once when the plugin is loaded by the application. + * \see f0r_deinit + */ +int f0r_init(); + +/** + * f0r_deinit is called once when the plugin is unloaded by the application. + * \see f0r_init + */ +void f0r_deinit(); + +//--------------------------------------------------------------------------- + +/** \addtogroup PLUGIN_TYPE Type of the Plugin + * These defines determine whether the plugin is a + * source, a filter or one of the two mixer types + * @{ + */ + +/** one input and one output */ +#define F0R_PLUGIN_TYPE_FILTER 0 +/** just one output */ +#define F0R_PLUGIN_TYPE_SOURCE 1 +/** two inputs and one output */ +#define F0R_PLUGIN_TYPE_MIXER2 2 +/** three inputs and one output */ +#define F0R_PLUGIN_TYPE_MIXER3 3 + +/** @} */ + +//--------------------------------------------------------------------------- + +/** \addtogroup COLOR_MODEL Color Models + * List of supported color models. + * + * Note: the color models are endian independent, because the + * color components are defined by their positon in memory, not + * by their significance in an uint32_t value. + * + * For effects that work on the color components, + * RGBA8888 is the recommended color model for frei0r-1.1 effects. + * For effects that only work on pixels, PACKED32 is the recommended + * color model since it helps the application to avoid unnecessary + * color conversions. + * + * Effects can choose an appropriate color model, applications must support + * all color models and do conversions if necessary. Source effects + * must not use the PACKED32 color model because the application must know + * in which color model the created framebuffers are represented. + * + * For each color model, a frame consists of width*height pixels which + * are stored row-wise and consecutively in memory. The size of a pixel is + * 4 bytes. There is no extra pitch parameter + * (i.e. the pitch is simply width*4). + * + * The following additional constraints must be honored: + * - The top-most line of a frame is stored first in memory. + * - A frame must be aligned to a 16 byte border in memory. + * - The width and height of a frame must be positive + * - The width and height of a frame must be integer multiples of 8 + * + * These constraints make sure that each line is stored at an address aligned + * to 16 byte. + */ +/*@{*/ +/** + * In BGRA8888, each pixel is represented by 4 consecutive + * unsigned bytes, where the first byte value represents + * the blue, the second the green, and the third the red color + * component of the pixel. The last value represents the + * alpha value. + */ +#define F0R_COLOR_MODEL_BGRA8888 0 + +/** + * In RGBA8888, each pixel is represented by 4 consecutive + * unsigned bytes, where the first byte value represents + * the red, the second the green, and the third the blue color + * component of the pixel. The last value represents the + * alpha value. + */ +#define F0R_COLOR_MODEL_RGBA8888 1 + +/** + * In PACKED32, each pixel is represented by 4 consecutive + * bytes, but it is not defined how the color componets are + * stored. The true color format could be RGBA8888, + * BGRA8888, a packed 32 bit YUV format, or any other + * color format that stores pixels in 32 bit. + * + * This is useful for effects that don't work on color but + * only on pixels (for example a mirror effect). + * + * Note that source effects must not use this color model. + */ +#define F0R_COLOR_MODEL_PACKED32 2 +/*@}*/ + +/** + * The f0r_plugin_info_t structure is filled in by the plugin + * to tell the application about its name, type, number of parameters, + * and version. + * + * An application should ignore (i.e. not use) frei0r effects that + * have unknown values in the plugin_type or color_model field. + * It should also ignore effects with a too high frei0r_version. + * + * This is necessary to be able to extend the frei0r spec (e.g. + * by adding new color models or plugin types) in a way that does not + * result in crashes when loading effects that make use of these + * extensions into an older application. + * + * All strings are unicode, 0-terminated, and the encoding is utf-8. + */ +typedef struct f0r_plugin_info +{ + const char* name; /**< The (short) name of the plugin */ + const char* author; /**< The plugin author */ + /** The plugin type + * \see PLUGIN_TYPE + */ + int plugin_type; + int color_model; /**< The color model used */ + int frei0r_version; /**< The frei0r major version this plugin is built for*/ + int major_version; /**< The major version of the plugin */ + int minor_version; /**< The minor version of the plugin */ + int num_params; /**< The number of parameters of the plugin */ + const char* explanation; /**< An optional explanation string */ +} f0r_plugin_info_t; + + +/** + * Is called once after init. The plugin has to fill in the values in info. + * + * \param info Pointer to an info struct allocated by the application. + */ +void f0r_get_plugin_info(f0r_plugin_info_t* info); + +//--------------------------------------------------------------------------- + +/** \addtogroup PARAM_TYPE Parameter Types + * + * @{ + */ + + +/** + * Parameter type for boolean values + * \see f0r_param_bool + */ +#define F0R_PARAM_BOOL 0 + +/** + * Parameter type for doubles + * \see f0r_param_double + */ +#define F0R_PARAM_DOUBLE 1 + +/** + * Parameter type for color + * \see f0r_param_color + */ +#define F0R_PARAM_COLOR 2 +/** + * Parameter type for position + * \see f0r_param_position + */ +#define F0R_PARAM_POSITION 3 + +/** + * Parameter type for string + * \see f0r_param_string + */ +#define F0R_PARAM_STRING 4 + +/** + * The boolean type. The allowed range of values is [0, 1]. + * [0, 0.5[ is mapped to false and [0.5, 1] is mapped to true. + */ +typedef double f0r_param_bool; + +/** + * The double type. The allowed range of values is [0, 1]. + */ +typedef double f0r_param_double; + +/** + * The color type. All three color components are in the range [0, 1]. + */ +typedef struct f0r_param_color +{ + float r; /**< red color component */ + float g; /**< green color component */ + float b; /**< blue color component */ +} f0r_param_color_t; + +/** + * The position type. Both position coordinates are in the range [0, 1]. + */ +typedef struct f0r_param_position +{ + double x; /**< x coordinate */ + double y; /**< y coordinate */ +} f0r_param_position_t; + + +/** + * The string type. + * Zero terminated array of 8-bit values in utf-8 encoding + */ +typedef char f0r_param_string; + +/** @} */ + + +/** + * Similar to f0r_plugin_info_t, this structure is filled by the plugin + * for every parameter. + * + * All strings are unicode, 0-terminated, and the encoding is utf-8. + */ +typedef struct f0r_param_info +{ + const char* name; /**<The (short) name of the param */ + int type; /**<The type (see the F0R_PARAM_* defines) */ + const char* explanation; /**<Optional explanation (can be 0) */ +} f0r_param_info_t; + +/** + * f0r_get_param_info is called by the application to query the type of + * each parameter. + * + * \param info is allocated by the application and filled by the plugin + * \param param_index the index of the parameter to be queried (from 0 to + * num_params-1) + */ +void f0r_get_param_info(f0r_param_info_t* info, int param_index); + +//--------------------------------------------------------------------------- + +/** + * Transparent instance pointer of the frei0r effect. + */ +typedef void* f0r_instance_t; + +/** + * Constructor for effect instances. The plugin returns a pointer to + * its internal instance structure. + * + * The resolution has to be an integer multiple of 8, + * must be greater than 0 and be at most 2048 in both dimensions. + * + * \param width The x-resolution of the processed video frames + * \param height The y-resolution of the processed video frames + * \returns 0 on failure or a pointer != 0 on success + * + * \see f0r_destruct + */ +f0r_instance_t f0r_construct(unsigned int width, unsigned int height); + +/** + * Destroys an effect instance. + * + * \param instance The pointer to the plugins internal instance structure. + * + * \see f0r_construct + */ +void f0r_destruct(f0r_instance_t instance); + +//--------------------------------------------------------------------------- + +/** + * Transparent parameter handle. + */ +typedef void* f0r_param_t; + +/** + * This function allows the application to set the parameter values of an + * effect instance. Validity of the parameter pointer is handled by the + * application thus the data must be copied by the effect. + * + * \param instance the effect instance + * \param param pointer to the parameter value + * \param param_index index of the parameter + * + * \see f0r_get_param_value + */ +void f0r_set_param_value(f0r_instance_t instance, + f0r_param_t param, int param_index); + +/** + * This function allows the application to query the parameter values of an + * effect instance. + * + * \param instance the effect instance + * \param param pointer to the parameter value + * \param param_index index of the parameter + * + * \see f0r_set_param_value + */ +void f0r_get_param_value(f0r_instance_t instance, + f0r_param_t param, int param_index); + +//--------------------------------------------------------------------------- + +/** + * This is where the core effect processing happens. The application calls it + * after it has set the necessary parameter values. + * inframe and outframe must be aligned to an integer multiple of 16 bytes + * in memory. + * + * This funcition should not alter the parameters of the effect in any + * way (\ref f0r_get_param_value should return the same values after a call + * to \ref f0r_update as before the call). + * + * The function is responsible to restore the fpu state (e.g. rounding mode) + * and mmx state if applicable before it returns to the caller. + * + * The host mustn't call \ref f0r_update for effects of type + * \ref F0R_PLUGIN_TYPE_MIXER2 and \ref F0R_PLUGIN_TYPE_MIXER3. + * + * \param instance the effect instance + * \param time the application time in seconds but with subsecond resolution + * (e.g. milli-second resolution). The resolution should be at least + * the inter-frame period of the application. + * \param inframe the incoming video frame (can be zero for sources) + * \param outframe the resulting video frame + * + * \see f0r_update2 + */ +void f0r_update(f0r_instance_t instance, + double time, const uint32_t* inframe, uint32_t* outframe); + +//--------------------------------------------------------------------------- + +/** + * For effects of type \ref F0R_PLUGIN_TYPE_SOURCE or + * \ref F0R_PLUGIN_TYPE_FILTER this method is optional. The \ref f0r_update + * method must still be exported for these two effect types. If both are + * provided the behavior of them must be the same. + * + * Effects of type \ref F0R_PLUGIN_TYPE_MIXER2 or \ref F0R_PLUGIN_TYPE_MIXER3 must provide the new \ref f0r_update2 method. + + * \param instance the effect instance + * \param time the application time in seconds but with subsecond resolution + * (e.g. milli-second resolution). The resolution should be at least + * the inter-frame period of the application. + * \param inframe1 the first incoming video frame (can be zero for sources) + * \param inframe2 the second incoming video frame + (can be zero for sources and filters) + * \param inframe3 the third incoming video frame + (can be zero for sources, filters and mixer3) + * \param outframe the resulting video frame + * + * \see f0r_update + */ +void f0r_update2(f0r_instance_t instance, + double time, + const uint32_t* inframe1, + const uint32_t* inframe2, + const uint32_t* inframe3, + uint32_t* outframe); +//--------------------------------------------------------------------------- + +#endif diff --git a/gst/frei0r/gstfrei0r.c b/gst/frei0r/gstfrei0r.c new file mode 100644 index 00000000..6af64948 --- /dev/null +++ b/gst/frei0r/gstfrei0r.c @@ -0,0 +1,546 @@ +/* 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 <string.h> + +GST_DEBUG_CATEGORY_STATIC (frei0r_debug); +#define GST_CAT_DEFAULT frei0r_debug + +GstCaps * +gst_frei0r_caps_from_color_model (gint color_model) +{ + switch (color_model) { + case F0R_COLOR_MODEL_BGRA8888: + return gst_caps_from_string (GST_VIDEO_CAPS_BGRA); + case F0R_COLOR_MODEL_RGBA8888: + return gst_caps_from_string (GST_VIDEO_CAPS_RGBA); + case F0R_COLOR_MODEL_PACKED32: + return gst_caps_from_string (GST_VIDEO_CAPS_BGRA " ; " + GST_VIDEO_CAPS_RGBA " ; " + GST_VIDEO_CAPS_ABGR " ; " + GST_VIDEO_CAPS_ARGB " ; " + GST_VIDEO_CAPS_BGRx " ; " + GST_VIDEO_CAPS_RGBx " ; " + GST_VIDEO_CAPS_xBGR " ; " + GST_VIDEO_CAPS_xRGB " ; " GST_VIDEO_CAPS_YUV ("AYUV")); + 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); + + 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 "-+", '-'); + + 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, FALSE, + G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE)); + properties[i].n_prop_ids = 1; + break; + case F0R_PARAM_DOUBLE: + g_object_class_install_property (gobject_class, count++, + g_param_spec_double (prop_name, param_info->name, + param_info->explanation, 0.0, 1.0, 0.0, + 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, NULL, + G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE)); + properties[i].n_prop_ids = 1; + break; + case F0R_PARAM_COLOR:{ + gchar *prop_name_full; + + /* FIXME: Full name, i.e. -R */ + + prop_name_full = g_strconcat (prop_name, "-r", 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, 0.0, + G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE)); + g_free (prop_name_full); + prop_name_full = g_strconcat (prop_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, 0.0, + G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE)); + g_free (prop_name_full); + prop_name_full = g_strconcat (prop_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, 0.0, + G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE)); + g_free (prop_name_full); + + properties[i].n_prop_ids = 3; + break; + } + case F0R_PARAM_POSITION:{ + gchar *prop_name_full; + + prop_name_full = g_strconcat (prop_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, 0.0, + G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE)); + g_free (prop_name_full); + prop_name_full = g_strconcat (prop_name, "-y", 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, 0.0, + G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE)); + g_free (prop_name_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 ? 1.0 : 0.0; + + 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 = b; + 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 * filename) +{ + GModule *module; + gboolean ret = FALSE; + GstFrei0rFuncTable ftable = { NULL, }; + f0r_plugin_info_t info = { 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 */ + if (!g_module_symbol (module, "f0r_update", (gpointer *) & ftable.update) && + !g_module_symbol (module, "f0r_update2", (gpointer *) & 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); + g_module_close (module); + return FALSE; + } + + if (info.color_model > F0R_COLOR_MODEL_PACKED32) { + GST_WARNING ("Unsupported color model %d", info.color_model); + g_module_close (module); + return FALSE; + } + + switch (info.plugin_type) { + case F0R_PLUGIN_TYPE_FILTER: + ret = gst_frei0r_filter_register (plugin, &info, &ftable); + break; + case F0R_PLUGIN_TYPE_SOURCE: + case F0R_PLUGIN_TYPE_MIXER2: + case F0R_PLUGIN_TYPE_MIXER3: + GST_WARNING + ("Source, Mixer2 and Mixer3 frei0r plugins not supported yet"); + g_module_close (module); + break; + default: + break; + } + + return ret; + +invalid_frei0r_plugin: + GST_ERROR ("Invalid frei0r plugin"); + g_module_close (module); + + return FALSE; +} + +static gboolean +register_plugins (GstPlugin * plugin, const gchar * path) +{ + GDir *dir; + gchar *filename; + const gchar *entry_name; + gboolean ret = FALSE; + + GST_DEBUG ("Scanning director '%s' for frei0r plugins", path); + + dir = g_dir_open (path, 0, NULL); + if (!dir) + return FALSE; + + while ((entry_name = g_dir_read_name (dir))) { + 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)) { + ret |= register_plugin (plugin, filename); + } else if (g_file_test (filename, G_FILE_TEST_IS_DIR)) { + ret |= register_plugins (plugin, filename); + } + g_free (filename); + } + g_dir_close (dir); + + return ret; +} + +static gboolean +plugin_init (GstPlugin * plugin) +{ + const gchar *homedir; + gchar *path; + + GST_DEBUG_CATEGORY_INIT (frei0r_debug, "frei0r", 0, "frei0r"); + + gst_plugin_add_dependency_simple (plugin, + "HOME/.frei0r-1/lib", + "/usr/lib/frei0r-1:/usr/local/lib/frei0r-1", + NULL, GST_PLUGIN_DEPENDENCY_FLAG_RECURSE); + + register_plugins (plugin, "/usr/lib/frei0r-1"); + register_plugins (plugin, "/usr/local/lib/frei0r-1"); + + homedir = g_get_home_dir (); + path = g_build_filename (homedir, ".frei0r-1", NULL); + register_plugins (plugin, path); + g_free (path); + + 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) diff --git a/gst/frei0r/gstfrei0r.h b/gst/frei0r/gstfrei0r.h new file mode 100644 index 00000000..91e5e097 --- /dev/null +++ b/gst/frei0r/gstfrei0r.h @@ -0,0 +1,91 @@ +/* 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. + */ + +#ifndef __GST_FREI0R_H__ +#define __GST_FREI0R_H__ + +#include <gst/gst.h> + +#include "frei0r.h" + +G_BEGIN_DECLS + +typedef struct _GstFrei0rFuncTable GstFrei0rFuncTable; +typedef struct _GstFrei0rProperty GstFrei0rProperty; +typedef struct _GstFrei0rPropertyValue GstFrei0rPropertyValue; + +struct _GstFrei0rPropertyValue { + union { + gboolean b; + gdouble d; + gchar *s; + f0r_param_position_t position; + f0r_param_color_t color; + } data; +}; + +struct _GstFrei0rProperty { + guint prop_id; + guint n_prop_ids; + + gint prop_idx; + f0r_param_info_t info; + + GstFrei0rPropertyValue default_value; +}; + +struct _GstFrei0rFuncTable { + int (*init) (void); + void (*deinit) (void); + + f0r_instance_t (*construct) (unsigned int width, unsigned int height); + void (*destruct) (f0r_instance_t instance); + + void (*get_plugin_info) (f0r_plugin_info_t* info); + void (*get_param_info) (f0r_param_info_t* info, int param_index); + + void (*set_param_value) (f0r_instance_t instance, + f0r_param_t param, int param_index); + void (*get_param_value) (f0r_instance_t instance, + f0r_param_t param, int param_index); + + void (*update) (f0r_instance_t instance, + double time, const uint32_t* inframe, uint32_t* outframe); + void (*update2) (f0r_instance_t instance, + double time, + const uint32_t* inframe1, + const uint32_t* inframe2, + const uint32_t* inframe3, + uint32_t* outframe); +}; + +void gst_frei0r_klass_install_properties (GObjectClass *gobject_class, GstFrei0rFuncTable *ftable, GstFrei0rProperty *properties, gint n_properties); + +f0r_instance_t * gst_frei0r_instance_construct (GstFrei0rFuncTable *ftable, GstFrei0rProperty *properties, gint n_properties, GstFrei0rPropertyValue *property_cache, gint width, gint height); + +GstFrei0rPropertyValue * gst_frei0r_property_cache_init (GstFrei0rProperty *properties, gint n_properties); +void gst_frei0r_property_cache_free (GstFrei0rProperty *properties, GstFrei0rPropertyValue *property_cache, gint n_properties); + +GstCaps * gst_frei0r_caps_from_color_model (gint color_model); +gboolean gst_frei0r_get_property (f0r_instance_t *instance, GstFrei0rFuncTable *ftable, GstFrei0rProperty *properties, gint n_properties, GstFrei0rPropertyValue *property_cache, guint prop_id, GValue *value); +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); + +G_END_DECLS + +#endif /* __GST_FREI0R_H__ */ diff --git a/gst/frei0r/gstfrei0rfilter.c b/gst/frei0r/gstfrei0rfilter.c new file mode 100644 index 00000000..7862be6c --- /dev/null +++ b/gst/frei0r/gstfrei0rfilter.c @@ -0,0 +1,255 @@ +/* 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 <string.h> + +#include "gstfrei0r.h" +#include "gstfrei0rfilter.h" + +typedef struct +{ + f0r_plugin_info_t info; + GstFrei0rFuncTable ftable; +} GstFrei0rFilterClassData; + +static gboolean +gst_frei0r_filter_get_unit_size (GstBaseTransform * trans, GstCaps * caps, + guint * size) +{ + GstVideoFormat fmt; + gint width, height; + + if (!gst_video_format_parse_caps (caps, &fmt, &width, &height)) + return FALSE; + + *size = gst_video_format_get_size (fmt, width, height); + return TRUE; +} + +static gboolean +gst_frei0r_filter_set_caps (GstBaseTransform * trans, GstCaps * incaps, + GstCaps * outcaps) +{ + GstFrei0rFilter *self = GST_FREI0R_FILTER (trans); + GstFrei0rFilterClass *klass = GST_FREI0R_FILTER_GET_CLASS (trans); + GstVideoFormat fmt; + gint width, height; + + if (!gst_video_format_parse_caps (incaps, &fmt, &width, &height)) + return FALSE; + + if (self->f0r_instance) { + klass->ftable->destruct (self->f0r_instance); + self->f0r_instance = NULL; + } + + self->f0r_instance = + gst_frei0r_instance_construct (klass->ftable, klass->properties, + klass->n_properties, self->property_cache, width, height); + + return TRUE; +} + +static gboolean +gst_frei0r_filter_stop (GstBaseTransform * trans) +{ + GstFrei0rFilter *self = GST_FREI0R_FILTER (trans); + GstFrei0rFilterClass *klass = GST_FREI0R_FILTER_GET_CLASS (trans); + + if (self->f0r_instance) { + klass->ftable->destruct (self->f0r_instance); + self->f0r_instance = NULL; + } + + return TRUE; +} + +static GstFlowReturn +gst_frei0r_filter_transform (GstBaseTransform * trans, GstBuffer * inbuf, + GstBuffer * outbuf) +{ + GstFrei0rFilter *self = GST_FREI0R_FILTER (trans); + GstFrei0rFilterClass *klass = GST_FREI0R_FILTER_GET_CLASS (trans); + gdouble time; + + if (!self->f0r_instance) + return GST_FLOW_NOT_NEGOTIATED; + + time = ((gdouble) GST_BUFFER_TIMESTAMP (inbuf)) / GST_SECOND; + + if (klass->ftable->update2) + klass->ftable->update2 (self->f0r_instance, time, + (const guint32 *) GST_BUFFER_DATA (inbuf), NULL, NULL, + (guint32 *) GST_BUFFER_DATA (outbuf)); + else + klass->ftable->update (self->f0r_instance, time, + (const guint32 *) GST_BUFFER_DATA (inbuf), + (guint32 *) GST_BUFFER_DATA (outbuf)); + + return GST_FLOW_OK; +} + +static void +gst_frei0r_filter_finalize (GObject * object) +{ + GstFrei0rFilter *self = GST_FREI0R_FILTER (object); + GstFrei0rFilterClass *klass = GST_FREI0R_FILTER_GET_CLASS (object); + + if (self->f0r_instance) { + klass->ftable->destruct (self->f0r_instance); + self->f0r_instance = NULL; + } + + if (self->property_cache) + gst_frei0r_property_cache_free (klass->properties, self->property_cache, + klass->n_properties); + self->property_cache = NULL; + + G_OBJECT_CLASS (g_type_class_peek_parent (klass))->finalize (object); +} + +static void +gst_frei0r_filter_get_property (GObject * object, guint prop_id, GValue * value, + GParamSpec * pspec) +{ + GstFrei0rFilter *self = GST_FREI0R_FILTER (object); + GstFrei0rFilterClass *klass = GST_FREI0R_FILTER_GET_CLASS (object); + + if (!gst_frei0r_get_property (self->f0r_instance, klass->ftable, + klass->properties, klass->n_properties, self->property_cache, prop_id, + value)) + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); +} + +static void +gst_frei0r_filter_set_property (GObject * object, guint prop_id, + const GValue * value, GParamSpec * pspec) +{ + GstFrei0rFilter *self = GST_FREI0R_FILTER (object); + GstFrei0rFilterClass *klass = GST_FREI0R_FILTER_GET_CLASS (object); + + if (!gst_frei0r_set_property (self->f0r_instance, klass->ftable, + klass->properties, klass->n_properties, self->property_cache, prop_id, + value)) + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); +} + +static void +gst_frei0r_filter_class_init (GstFrei0rFilterClass * klass, + GstFrei0rFilterClassData * class_data) +{ + GObjectClass *gobject_class = (GObjectClass *) klass; + GstElementClass *gstelement_class = (GstElementClass *) klass; + GstBaseTransformClass *gsttrans_class = (GstBaseTransformClass *) klass; + GstPadTemplate *templ; + GstCaps *caps; + gchar *author; + + klass->ftable = &class_data->ftable; + klass->info = &class_data->info; + + gobject_class->finalize = gst_frei0r_filter_finalize; + gobject_class->set_property = gst_frei0r_filter_set_property; + gobject_class->get_property = gst_frei0r_filter_get_property; + + klass->n_properties = klass->info->num_params; + klass->properties = g_new0 (GstFrei0rProperty, klass->n_properties); + + gst_frei0r_klass_install_properties (gobject_class, klass->ftable, + klass->properties, klass->n_properties); + + author = + g_strdup_printf + ("Sebastian Dröge <sebastian.droege@collabora.co.uk>, %s", + class_data->info.author); + gst_element_class_set_details_simple (gstelement_class, class_data->info.name, + "Filter/Editor/Video", class_data->info.explanation, author); + g_free (author); + + caps = gst_frei0r_caps_from_color_model (class_data->info.color_model); + + templ = + gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS, + gst_caps_ref (caps)); + gst_element_class_add_pad_template (gstelement_class, templ); + + templ = gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS, caps); + gst_element_class_add_pad_template (gstelement_class, templ); + + gsttrans_class->get_unit_size = + GST_DEBUG_FUNCPTR (gst_frei0r_filter_get_unit_size); + gsttrans_class->set_caps = GST_DEBUG_FUNCPTR (gst_frei0r_filter_set_caps); + gsttrans_class->stop = GST_DEBUG_FUNCPTR (gst_frei0r_filter_stop); + gsttrans_class->transform = GST_DEBUG_FUNCPTR (gst_frei0r_filter_transform); +} + +static void +gst_frei0r_filter_init (GstFrei0rFilter * self, GstFrei0rFilterClass * klass) +{ + self->property_cache = + gst_frei0r_property_cache_init (klass->properties, klass->n_properties); +} + +gboolean +gst_frei0r_filter_register (GstPlugin * plugin, const f0r_plugin_info_t * info, + const GstFrei0rFuncTable * ftable) +{ + GTypeInfo typeinfo = { + sizeof (GstFrei0rFilterClass), + NULL, + NULL, + (GClassInitFunc) gst_frei0r_filter_class_init, + NULL, + NULL, + sizeof (GstFrei0rFilter), + 0, + (GInstanceInitFunc) gst_frei0r_filter_init + }; + GType type; + gchar *type_name, *tmp; + GstFrei0rFilterClassData *class_data; + + tmp = g_strdup_printf ("frei0r-%s", info->name); + type_name = g_ascii_strdown (tmp, -1); + g_free (tmp); + g_strcanon (type_name, G_CSET_A_2_Z G_CSET_a_2_z G_CSET_DIGITS "-+", '-'); + + if (g_type_from_name (type_name)) { + GST_WARNING ("Type '%s' already exists", type_name); + return FALSE; + } + + if (!ftable->init ()) { + GST_ERROR ("Initializing plugin failed"); + return FALSE; + } + + class_data = g_new0 (GstFrei0rFilterClassData, 1); + memcpy (&class_data->info, info, sizeof (f0r_plugin_info_t)); + memcpy (&class_data->ftable, ftable, sizeof (GstFrei0rFuncTable)); + typeinfo.class_data = class_data; + + type = + g_type_register_static (GST_TYPE_VIDEO_FILTER, type_name, &typeinfo, 0); + return (gst_element_register (plugin, type_name, GST_RANK_NONE, type)); +} diff --git a/gst/frei0r/gstfrei0rfilter.h b/gst/frei0r/gstfrei0rfilter.h new file mode 100644 index 00000000..ded2172b --- /dev/null +++ b/gst/frei0r/gstfrei0rfilter.h @@ -0,0 +1,63 @@ +/* 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. + */ + +#ifndef __GST_FREI0R_FILTER_H__ +#define __GST_FREI0R_FILTER_H__ + +#include <gst/gst.h> +#include <gst/video/video.h> +#include <gst/video/gstvideofilter.h> + +#include "frei0r.h" +#include "gstfrei0r.h" + +G_BEGIN_DECLS + +#define GST_FREI0R_FILTER(obj) \ + ((GstFrei0rFilter *) obj) +#define GST_FREI0R_FILTER_CLASS(klass) \ + ((GstFrei0rFilterClass *) klass) +#define GST_FREI0R_FILTER_GET_CLASS(obj) \ + ((GstFrei0rFilterClass *) g_type_class_peek (G_TYPE_FROM_INSTANCE (obj))) + +typedef struct _GstFrei0rFilter GstFrei0rFilter; +typedef struct _GstFrei0rFilterClass GstFrei0rFilterClass; + +struct _GstFrei0rFilter { + GstVideoFilter parent; + + f0r_instance_t *f0r_instance; + GstFrei0rPropertyValue *property_cache; +}; + +struct _GstFrei0rFilterClass { + GstVideoFilterClass parent; + + f0r_plugin_info_t *info; + GstFrei0rFuncTable *ftable; + + GstFrei0rProperty *properties; + gint n_properties; +}; + +gboolean gst_frei0r_filter_register (GstPlugin *plugin, const f0r_plugin_info_t *info, const GstFrei0rFuncTable *ftable); + +G_END_DECLS + +#endif /* __GST_FREI0R_FILTER_H__ */ |