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/*
* camsession.h - GStreamer CAM (EN50221) Session Layer
* Copyright (C) 2007 Alessandro Decina
*
* Authors:
* Alessandro Decina <alessandro@nnva.org>
*
* 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 CAM_SESSION_H
#define CAM_SESSION_H
#include "cam.h"
#include "camtransport.h"
#define CAM_SL(obj) ((CamSL *) obj)
#define CAM_SL_SESSION(obj) ((CamSLSession *) obj)
typedef struct _CamSL CamSL;
typedef struct _CamSLSession CamSLSession;
typedef enum
{
CAM_SL_SESSION_STATE_IDLE,
CAM_SL_SESSION_STATE_OPENING,
CAM_SL_SESSION_STATE_ACTIVE,
CAM_SL_SESSION_STATE_CLOSING
} CamSLSessionState;
typedef enum
{
CAM_SL_RESOURCE_STATUS_OPEN = 0x00,
CAM_SL_RESOURCE_STATUS_NOT_FOUND = 0xF0,
CAM_SL_RESOURCE_STATUS_UNAVAILABLE = 0xF1,
CAM_SL_RESOURCE_STATUS_INVALID_VERSION = 0xF2,
CAM_SL_RESOURCE_STATUS_BUSY = 0xF3
} CamSLResourceStatus;
struct _CamSL
{
CamTL *tl;
GHashTable *sessions;
guint session_ids;
/* callbacks */
CamReturn (*open_session_request) (CamSL *sl, CamSLSession *session,
CamSLResourceStatus *status);
CamReturn (*session_opened) (CamSL *sl, CamSLSession *session);
CamReturn (*session_closed) (CamSL *sl, CamSLSession *session);
CamReturn (*session_data) (CamSL *sl, CamSLSession *session,
guint8 *data, guint length);
gpointer user_data;
};
struct _CamSLSession
{
CamSL *sl;
CamTLConnection *connection;
guint resource_id;
guint16 session_nb;
CamSLSessionState state;
gpointer user_data;
};
CamSL *cam_sl_new (CamTL *transport);
void cam_sl_destroy (CamSL *sl);
CamReturn cam_sl_create_session (CamSL *sl, CamTLConnection *connection,
guint resource_id, CamSLSession **session);
CamReturn cam_sl_session_close (CamSLSession *session);
void cam_sl_calc_buffer_size (CamSL *sl,
guint body_length, guint *buffer_size, guint *offset);
CamReturn cam_sl_session_write (CamSLSession *session,
guint8 *buffe, guint buffer_size, guint body_length);
#endif /* CAM_SESSION_H */
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