HGKeeper

* Purple - Internet Messaging Library

* Copyright (C) Pidgin Developers <devel@pidgin.im>

* Purple is the legal property of its developers, whose names are too numerous

* to list here. Please refer to the COPYRIGHT file distributed with this

* source distribution.

* This library is free software; you can redistribute it and/or modify it

* under the terms of the GNU 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 General Public License for

* more details.

* You should have received a copy of the GNU General Public License along with

* this library; if not, see <https://www.gnu.org/licenses/>.

#include "codec.h"

struct _PurpleMediaCodec

{

GObject parent;

};

typedef struct

{

gint id;

char *encoding_name;

PurpleMediaSessionType media_type;

guint clock_rate;

guint channels;

GList *optional_params;

} PurpleMediaCodecPrivate;

enum {

PROP_0,

PROP_ID,

PROP_ENCODING_NAME,

PROP_MEDIA_TYPE,

PROP_CLOCK_RATE,

PROP_CHANNELS,

PROP_OPTIONAL_PARAMS,

N_PROPERTIES,

};

static GParamSpec *properties[N_PROPERTIES] = {NULL, };

G_DEFINE_FINAL_TYPE_WITH_PRIVATE(PurpleMediaCodec, purple_media_codec,

G_TYPE_OBJECT)

static void

purple_media_codec_init(PurpleMediaCodec *info)

{

PurpleMediaCodecPrivate *priv =

purple_media_codec_get_instance_private(info);

priv->encoding_name = NULL;

priv->optional_params = NULL;

}

static void

purple_media_codec_finalize(GObject *info)

{

PurpleMediaCodecPrivate *priv =

purple_media_codec_get_instance_private(

PURPLE_MEDIA_CODEC(info));

g_free(priv->encoding_name);

g_list_free_full(priv->optional_params, (GDestroyNotify)purple_key_value_pair_free);

G_OBJECT_CLASS(purple_media_codec_parent_class)->finalize(info);

}

static void

purple_media_codec_set_property (GObject *object, guint prop_id,

const GValue *value, GParamSpec *pspec)

{

PurpleMediaCodecPrivate *priv;

g_return_if_fail(PURPLE_MEDIA_IS_CODEC(object));

priv = purple_media_codec_get_instance_private(

PURPLE_MEDIA_CODEC(object));

switch (prop_id) {

case PROP_ID:

priv->id = g_value_get_uint(value);

break;

case PROP_ENCODING_NAME:

g_free(priv->encoding_name);

priv->encoding_name = g_value_dup_string(value);

break;

case PROP_MEDIA_TYPE:

priv->media_type = g_value_get_flags(value);

break;

case PROP_CLOCK_RATE:

priv->clock_rate = g_value_get_uint(value);

break;

case PROP_CHANNELS:

priv->channels = g_value_get_uint(value);

break;

case PROP_OPTIONAL_PARAMS:

priv->optional_params = g_value_get_pointer(value);

break;

default:

G_OBJECT_WARN_INVALID_PROPERTY_ID(

object, prop_id, pspec);

break;

}

static void

purple_media_codec_get_property (GObject *object, guint prop_id,

GValue *value, GParamSpec *pspec)

{

PurpleMediaCodecPrivate *priv;

g_return_if_fail(PURPLE_MEDIA_IS_CODEC(object));

priv = purple_media_codec_get_instance_private(

PURPLE_MEDIA_CODEC(object));

switch (prop_id) {

case PROP_ID:

g_value_set_uint(value, priv->id);

break;

case PROP_ENCODING_NAME:

g_value_set_string(value, priv->encoding_name);

break;

case PROP_MEDIA_TYPE:

g_value_set_flags(value, priv->media_type);

break;

case PROP_CLOCK_RATE:

g_value_set_uint(value, priv->clock_rate);

break;

case PROP_CHANNELS:

g_value_set_uint(value, priv->channels);

break;

case PROP_OPTIONAL_PARAMS:

g_value_set_pointer(value, priv->optional_params);

break;

default:

G_OBJECT_WARN_INVALID_PROPERTY_ID(

object, prop_id, pspec);

break;

}

static void

purple_media_codec_class_init(PurpleMediaCodecClass *klass)

{

GObjectClass *gobject_class = (GObjectClass*)klass;

gobject_class->finalize = purple_media_codec_finalize;

gobject_class->set_property = purple_media_codec_set_property;

gobject_class->get_property = purple_media_codec_get_property;

/**

* PurpleMediaCodec:id:

* The numeric identifier of the codec.

properties[PROP_ID] = g_param_spec_uint("id",

"ID",

"The numeric identifier of the codec.",

0, G_MAXUINT, 0,

G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE |

G_PARAM_STATIC_STRINGS);

/**

* PurpleMediaCodec:encoding-name:

* The name of the codec.

properties[PROP_ENCODING_NAME] = g_param_spec_string("encoding-name",

"Encoding Name",

"The name of the codec.",

NULL,

G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE |

G_PARAM_STATIC_STRINGS);

/**

* PurpleMediaCodec:media-type:

* Whether this is an audio, video, or application codec.

properties[PROP_MEDIA_TYPE] = g_param_spec_flags("media-type",

"Media Type",

"Whether this is an audio, video or application codec.",

PURPLE_MEDIA_TYPE_SESSION_TYPE,

PURPLE_MEDIA_NONE,

G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE |

G_PARAM_STATIC_STRINGS);

/**

* PurpleMediaCodec:clock-rate:

* The clock rate for the codec.

properties[PROP_CLOCK_RATE] = g_param_spec_uint("clock-rate",

"Create Callback",

"The function called to create this element.",

0, G_MAXUINT, 0,

G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);

/**

* PurpleMediaCodec:channels:

* The number of channels in the codec.

properties[PROP_CHANNELS] = g_param_spec_uint("channels",

"Channels",

"The number of channels in this codec.",

0, G_MAXUINT, 0,

G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);

/**

* PurpleMediaCodec:optional-params:

* A list of optional parameters for the codec.

properties[PROP_OPTIONAL_PARAMS] = g_param_spec_pointer("optional-params",

"Optional Params",

"A list of optional parameters for the codec.",

G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);

g_object_class_install_properties(gobject_class, N_PROPERTIES, properties);

}

PurpleMediaCodec *

purple_media_codec_new(int id, const char *encoding_name,

PurpleMediaSessionType media_type, guint clock_rate)

{

PurpleMediaCodec *codec =

g_object_new(PURPLE_MEDIA_TYPE_CODEC,

"id", id,

"encoding_name", encoding_name,

"media_type", media_type,

"clock-rate", clock_rate, NULL);

return codec;

}

guint

purple_media_codec_get_id(PurpleMediaCodec *codec)

{

guint id;

g_return_val_if_fail(PURPLE_MEDIA_IS_CODEC(codec), 0);

g_object_get(codec, "id", &id, NULL);

return id;

}

gchar *

purple_media_codec_get_encoding_name(PurpleMediaCodec *codec)

{

gchar *name;

g_return_val_if_fail(PURPLE_MEDIA_IS_CODEC(codec), NULL);

g_object_get(codec, "encoding-name", &name, NULL);

return name;

}

guint

purple_media_codec_get_clock_rate(PurpleMediaCodec *codec)

{

guint clock_rate;

g_return_val_if_fail(PURPLE_MEDIA_IS_CODEC(codec), 0);

g_object_get(codec, "clock-rate", &clock_rate, NULL);

return clock_rate;

}

guint

purple_media_codec_get_channels(PurpleMediaCodec *codec)

{

guint channels;

g_return_val_if_fail(PURPLE_MEDIA_IS_CODEC(codec), 0);

g_object_get(codec, "channels", &channels, NULL);

return channels;

}

GList *

purple_media_codec_get_optional_parameters(PurpleMediaCodec *codec)

{

GList *optional_params;

g_return_val_if_fail(PURPLE_MEDIA_IS_CODEC(codec), NULL);

g_object_get(codec, "optional-params", &optional_params, NULL);

return optional_params;

}

void

purple_media_codec_add_optional_parameter(PurpleMediaCodec *codec,

const gchar *name, const gchar *value)

{

PurpleMediaCodecPrivate *priv;

PurpleKeyValuePair *new_param;

g_return_if_fail(codec != NULL);

g_return_if_fail(name != NULL && value != NULL);

priv = purple_media_codec_get_instance_private(codec);

new_param = purple_key_value_pair_new_full(name, g_strdup(value), g_free);

priv->optional_params = g_list_append(

priv->optional_params, new_param);

g_object_notify_by_pspec(G_OBJECT(codec), properties[PROP_OPTIONAL_PARAMS]);

}

void

purple_media_codec_remove_optional_parameter(PurpleMediaCodec *codec,

PurpleKeyValuePair *param)

{

PurpleMediaCodecPrivate *priv;

g_return_if_fail(codec != NULL && param != NULL);

priv = purple_media_codec_get_instance_private(codec);

priv->optional_params =

g_list_remove(priv->optional_params, param);

purple_key_value_pair_free(param);

g_object_notify_by_pspec(G_OBJECT(codec), properties[PROP_OPTIONAL_PARAMS]);

}

PurpleKeyValuePair *

purple_media_codec_get_optional_parameter(PurpleMediaCodec *codec,

const gchar *name, const gchar *value)

{

PurpleMediaCodecPrivate *priv;

GList *iter;

g_return_val_if_fail(codec != NULL, NULL);

g_return_val_if_fail(name != NULL, NULL);

priv = purple_media_codec_get_instance_private(codec);

for (iter = priv->optional_params; iter; iter = g_list_next(iter)) {

PurpleKeyValuePair *param = iter->data;

if (!g_ascii_strcasecmp(param->key, name) &&

(value == NULL ||

!g_ascii_strcasecmp(param->value, value)))

{

return param;

}

return NULL;

}

PurpleMediaCodec *

purple_media_codec_copy(PurpleMediaCodec *codec)

{

PurpleMediaCodecPrivate *priv;

PurpleMediaCodec *new_codec;

GList *iter;

if (codec == NULL) {

return NULL;

}

priv = purple_media_codec_get_instance_private(codec);

new_codec = purple_media_codec_new(priv->id, priv->encoding_name,

priv->media_type, priv->clock_rate);

g_object_set(codec, "channels", priv->channels, NULL);

for (iter = priv->optional_params; iter; iter = g_list_next(iter)) {

PurpleKeyValuePair *param =

(PurpleKeyValuePair*)iter->data;

purple_media_codec_add_optional_parameter(new_codec,

param->key, param->value);

}

return new_codec;

}

GList *

purple_media_codec_list_copy(GList *codecs)

{

return g_list_copy_deep(codecs,

(GCopyFunc)(GCallback)purple_media_codec_copy,

NULL);

}

void

purple_media_codec_list_free(GList *codecs)

{

g_list_free_full(codecs, g_object_unref);

}

gchar *

purple_media_codec_to_string(PurpleMediaCodec *codec)

{

PurpleMediaCodecPrivate *priv;

GString *string = NULL;

GList *item;

const gchar *media_type_str = NULL;

if (codec == NULL) {

return g_strdup("(NULL)");

}

priv = purple_media_codec_get_instance_private(codec);

string = g_string_new("");

if (priv->media_type & PURPLE_MEDIA_AUDIO) {

media_type_str = "audio";

} else if (priv->media_type & PURPLE_MEDIA_VIDEO) {

media_type_str = "video";

} else if (priv->media_type & PURPLE_MEDIA_APPLICATION) {

media_type_str = "application";

}

g_string_printf(string, "%d: %s %s clock:%d channels:%d", priv->id,

media_type_str, priv->encoding_name,

priv->clock_rate, priv->channels);

for (item = priv->optional_params; item; item = g_list_next (item)) {

PurpleKeyValuePair *param = item->data;

g_string_append_printf (string, " %s=%s",

param->key, (gchar *)param->value);

}

return g_string_free(string, FALSE);

}

pidgin/pidgin