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97 lines
2.6 KiB
C
97 lines
2.6 KiB
C
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/*
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* camsession.h - GStreamer CAM (EN50221) Session Layer
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* Copyright (C) 2007 Alessandro Decina
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*
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* Authors:
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* Alessandro Decina <alessandro@nnva.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef CAM_SESSION_H
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#define CAM_SESSION_H
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#include "cam.h"
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#include "camtransport.h"
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#define CAM_SL(obj) ((CamSL *) obj)
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#define CAM_SL_SESSION(obj) ((CamSLSession *) obj)
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typedef struct _CamSL CamSL;
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typedef struct _CamSLSession CamSLSession;
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typedef enum
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{
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CAM_SL_SESSION_STATE_IDLE,
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CAM_SL_SESSION_STATE_OPENING,
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CAM_SL_SESSION_STATE_ACTIVE,
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CAM_SL_SESSION_STATE_CLOSING
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} CamSLSessionState;
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typedef enum
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{
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CAM_SL_RESOURCE_STATUS_OPEN = 0x00,
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CAM_SL_RESOURCE_STATUS_NOT_FOUND = 0xF0,
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CAM_SL_RESOURCE_STATUS_UNAVAILABLE = 0xF1,
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CAM_SL_RESOURCE_STATUS_INVALID_VERSION = 0xF2,
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CAM_SL_RESOURCE_STATUS_BUSY = 0xF3
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} CamSLResourceStatus;
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struct _CamSL
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{
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CamTL *tl;
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GHashTable *sessions;
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guint session_ids;
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/* callbacks */
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CamReturn (*open_session_request) (CamSL *sl, CamSLSession *session,
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CamSLResourceStatus *status);
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CamReturn (*session_opened) (CamSL *sl, CamSLSession *session);
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CamReturn (*session_closed) (CamSL *sl, CamSLSession *session);
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CamReturn (*session_data) (CamSL *sl, CamSLSession *session,
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guint8 *data, guint length);
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gpointer user_data;
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};
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struct _CamSLSession
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{
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CamSL *sl;
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CamTLConnection *connection;
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guint resource_id;
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guint16 session_nb;
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CamSLSessionState state;
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gpointer user_data;
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};
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CamSL *cam_sl_new (CamTL *transport);
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void cam_sl_destroy (CamSL *sl);
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CamReturn cam_sl_create_session (CamSL *sl, CamTLConnection *connection,
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guint resource_id, CamSLSession **session);
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CamReturn cam_sl_session_close (CamSLSession *session);
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void cam_sl_calc_buffer_size (CamSL *sl,
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guint body_length, guint *buffer_size, guint *offset);
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CamReturn cam_sl_session_write (CamSLSession *session,
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guint8 *buffe, guint buffer_size, guint body_length);
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#endif /* CAM_SESSION_H */
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