mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-25 03:01:03 +00:00
96 lines
2.6 KiB
C
96 lines
2.6 KiB
C
/*
|
|
* camsession.h - GStreamer CAM (EN50221) Session Layer
|
|
* Copyright (C) 2007 Alessandro Decina
|
|
*
|
|
* Authors:
|
|
* Alessandro Decina <alessandro.d@gmail.com>
|
|
*
|
|
* 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., 51 Franklin St, Fifth Floor,
|
|
* Boston, MA 02110-1301, 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 */
|