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/* purple
*
* 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 program 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 program 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 program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA
*/
#if !defined(PURPLE_GLOBAL_HEADER_INSIDE) && !defined(PURPLE_COMPILATION)
# error "only <purple.h> may be included directly"
#endif
#ifndef PURPLE_MEDIA_GST_H
#define PURPLE_MEDIA_GST_H
#include "media.h"
#include "mediamanager.h"
#include <gst/gst.h>
#define PURPLE_TYPE_MEDIA_ELEMENT_TYPE purple_media_element_type_get_type()
#define PURPLE_TYPE_MEDIA_ELEMENT_INFO purple_media_element_info_get_type()
/**
* PurpleMediaElementInfo:
*
* An opaque structure representing an audio/video source/sink.
*/
typedef struct _PurpleMediaElementInfo PurpleMediaElementInfo;
typedef GstElement *(*PurpleMediaElementCreateCallback)(
PurpleMediaElementInfo *info, PurpleMedia *media,
const gchar *session_id, const gchar *participant);
/**
* PurpleMediaElementType:
* @PURPLE_MEDIA_ELEMENT_NONE: empty element
* @PURPLE_MEDIA_ELEMENT_AUDIO: supports audio
* @PURPLE_MEDIA_ELEMENT_VIDEO: supports video
* @PURPLE_MEDIA_ELEMENT_AUDIO_VIDEO: supports audio and video
* @PURPLE_MEDIA_ELEMENT_NO_SRCS: has no src pads
* @PURPLE_MEDIA_ELEMENT_ONE_SRC: has one src pad
* @PURPLE_MEDIA_ELEMENT_MULTI_SRC: has multiple src pads
* @PURPLE_MEDIA_ELEMENT_REQUEST_SRC: src pads must be requested
* @PURPLE_MEDIA_ELEMENT_NO_SINKS: has no sink pads
* @PURPLE_MEDIA_ELEMENT_ONE_SINK: has one sink pad
* @PURPLE_MEDIA_ELEMENT_MULTI_SINK: has multiple sink pads
* @PURPLE_MEDIA_ELEMENT_REQUEST_SINK: sink pads must be requested
* @PURPLE_MEDIA_ELEMENT_UNIQUE: This element is unique and only one
* instance of it should be created at a
* time
* @PURPLE_MEDIA_ELEMENT_SRC: can be set as an active src
* @PURPLE_MEDIA_ELEMENT_SINK: can be set as an active sink
* @PURPLE_MEDIA_ELEMENT_APPLICATION: supports application data
*/
typedef enum {
PURPLE_MEDIA_ELEMENT_NONE = 0,
PURPLE_MEDIA_ELEMENT_AUDIO = 1,
PURPLE_MEDIA_ELEMENT_VIDEO = 1 << 1,
PURPLE_MEDIA_ELEMENT_AUDIO_VIDEO = PURPLE_MEDIA_ELEMENT_AUDIO
| PURPLE_MEDIA_ELEMENT_VIDEO,
PURPLE_MEDIA_ELEMENT_NO_SRCS = 0,
PURPLE_MEDIA_ELEMENT_ONE_SRC = 1 << 2,
PURPLE_MEDIA_ELEMENT_MULTI_SRC = 1 << 3,
PURPLE_MEDIA_ELEMENT_REQUEST_SRC = 1 << 4,
PURPLE_MEDIA_ELEMENT_NO_SINKS = 0,
PURPLE_MEDIA_ELEMENT_ONE_SINK = 1 << 5,
PURPLE_MEDIA_ELEMENT_MULTI_SINK = 1 << 6,
PURPLE_MEDIA_ELEMENT_REQUEST_SINK = 1 << 7,
PURPLE_MEDIA_ELEMENT_UNIQUE = 1 << 8,
PURPLE_MEDIA_ELEMENT_SRC = 1 << 9,
PURPLE_MEDIA_ELEMENT_SINK = 1 << 10,
PURPLE_MEDIA_ELEMENT_APPLICATION = 1 << 11,
} PurpleMediaElementType;
G_BEGIN_DECLS
GType purple_media_element_type_get_type(void);
G_DECLARE_FINAL_TYPE(PurpleMediaElementInfo, purple_media_element_info, PURPLE,
MEDIA_ELEMENT_INFO, GObject)
/**
* purple_media_get_src:
* @media: The media object the session is in.
* @sess_id: The session id of the session to get the source from.
*
* Gets the source from a session
*
* Returns: (transfer none): The source retrieved.
*/
GstElement *purple_media_get_src(PurpleMedia *media, const gchar *sess_id);
/**
* purple_media_get_tee:
* @media: The instance to get the tee from.
* @session_id: The id of the session to get the tee from.
* @participant: Optionally, the participant of the stream to get the tee from.
*
* Gets the tee from a given session/stream.
*
* Returns: (transfer none): The GstTee element from the chosen session/stream.
*/
GstElement *purple_media_get_tee(PurpleMedia *media,
const gchar *session_id, const gchar *participant);
/**
* purple_media_manager_get_pipeline:
* @manager: The media manager to get the pipeline from.
*
* Gets the pipeline from the media manager.
*
* Returns: (transfer none): The pipeline.
*/
GstElement *purple_media_manager_get_pipeline(PurpleMediaManager *manager);
/**
* purple_media_manager_get_element:
* @manager: The media manager to use to obtain the source/sink.
* @type: The type of source/sink to get.
* @media: The media call this element is requested for.
* @session_id: The id of the session this element is requested for or NULL.
* @participant: The remote user this element is requested for or NULL.
*
* Returns: (transfer full): A GStreamer source or sink for audio or video.
*/
GstElement *purple_media_manager_get_element(PurpleMediaManager *manager,
PurpleMediaSessionType type, PurpleMedia *media,
const gchar *session_id, const gchar *participant);
/**
* purple_media_manager_enumerate_elements:
* @manager: The media manager to use to obtain the element infos.
* @type: The type of element infos to get.
*
* Returns: (transfer container) (element-type PurpleMediaElementInfo): A #GList of registered #PurpleMediaElementInfo instances that match
* @type.
*
* Since: 3.0.0
*/
GList *purple_media_manager_enumerate_elements(PurpleMediaManager *manager,
PurpleMediaElementType type);
/**
* purple_media_manager_get_element_info:
* @manager: The #PurpleMediaManager instance
* @name: The name of the element to get.
*
* Returns: (transfer full): The #PurpleMediaElementInfo for @name or NULL.
*/
PurpleMediaElementInfo *purple_media_manager_get_element_info(
PurpleMediaManager *manager, const gchar *name);
gboolean purple_media_manager_register_element(PurpleMediaManager *manager,
PurpleMediaElementInfo *info);
gboolean purple_media_manager_unregister_element(PurpleMediaManager *manager,
const gchar *name);
gboolean purple_media_manager_set_active_element(PurpleMediaManager *manager,
PurpleMediaElementInfo *info);
/**
* purple_media_manager_get_active_element:
* @manager: The #PurpleMediaManager instance
* @type: The #PurpleMediaElementType who's info to get
*
* Returns: (transfer none): The #PurpleMediaElementInfo for @type.
*/
PurpleMediaElementInfo *purple_media_manager_get_active_element(
PurpleMediaManager *manager, PurpleMediaElementType type);
/**
* purple_media_manager_set_video_caps:
* @manager: The media manager to set the media formats.
* @caps: Set of allowed media formats.
*
* Reduces media formats supported by the video source to given set.
*
* Useful to force negotiation of smaller picture resolution more suitable for
* use with particular codec and communication protocol without rescaling.
*/
void purple_media_manager_set_video_caps(PurpleMediaManager *manager,
GstCaps *caps);
/**
* purple_media_manager_get_video_caps:
* @manager: The media manager to get the media formats from.
*
* Returns current set of media formats limiting the output from video source.
*
* Returns: GstCaps limiting the video source's formats.
*/
GstCaps *purple_media_manager_get_video_caps(PurpleMediaManager *manager);
gchar *purple_media_element_info_get_id(PurpleMediaElementInfo *info);
gchar *purple_media_element_info_get_name(PurpleMediaElementInfo *info);
PurpleMediaElementType purple_media_element_info_get_element_type(
PurpleMediaElementInfo *info);
/**
* purple_media_element_info_call_create:
* @info: The #PurpleMediaElementInfo to create the element from
* @media:
* @session_id:
* @participant:
*
* Returns: (transfer full): The new GstElement.
*/
GstElement *purple_media_element_info_call_create(
PurpleMediaElementInfo *info, PurpleMedia *media,
const gchar *session_id, const gchar *participant);
G_END_DECLS
#endif /* PURPLE_MEDIA_GST_H */
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