mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-25 11:11:08 +00:00
c205b740d4
Original commit message from CVS: patch by: Alessandro Decina * sys/dvb/Makefile.am: * sys/dvb/cam.c: * sys/dvb/cam.h: * sys/dvb/camapplication.c: * sys/dvb/camapplication.h: * sys/dvb/camapplicationinfo.c: * sys/dvb/camapplicationinfo.h: * sys/dvb/camconditionalaccess.c: * sys/dvb/camconditionalaccess.h: * sys/dvb/camdevice.c: * sys/dvb/camdevice.h: * sys/dvb/camresourcemanager.c: * sys/dvb/camresourcemanager.h: * sys/dvb/camsession.c: * sys/dvb/camsession.h: * sys/dvb/camswclient.c: * sys/dvb/camswclient.h: * sys/dvb/camtransport.c: * sys/dvb/camtransport.h: * sys/dvb/camutils.c: * sys/dvb/camutils.h: * sys/dvb/dvbbasebin.c: * sys/dvb/dvbbasebin.h: * sys/dvb/gstdvb.c: * sys/dvb/gstdvbsrc.c: * sys/dvb/gstdvbsrc.h: Integrate SoC work done by Alessandro for the Freevo project. Adds cam support to the dvb stack in GStreamer and a new element (actually a bin) called dvbbasebin that integrates dvbsrc and mpegtsparse to a) handle decryption and b) allow acquiring multiple channels on same transponder without knowing pid numbers.
115 lines
3.3 KiB
C
115 lines
3.3 KiB
C
/*
|
|
* camtransport.h - GStreamer CAM (EN50221) transport 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_TRANSPORT_H
|
|
#define CAM_TRANSPORT_H
|
|
|
|
#include <gst/gst.h>
|
|
#include "cam.h"
|
|
#include "camutils.h"
|
|
|
|
#define HOST_BUFFER_SIZE 1024
|
|
|
|
#define CAM_TL(obj) ((CamTL *) obj)
|
|
#define CAM_TL_CONNECTION(obj) ((CamTLConnection *) obj)
|
|
|
|
typedef struct _CamTL CamTL;
|
|
typedef struct _CamTLPrivate CamTLPrivate;
|
|
|
|
typedef struct _CamTLConnection CamTLConnection;
|
|
typedef struct _CamTLConnectionPrivate CamTLConnectionPrivate;
|
|
|
|
typedef enum
|
|
{
|
|
CAM_TL_CONNECTION_STATE_CLOSED,
|
|
CAM_TL_CONNECTION_STATE_IN_CREATION,
|
|
CAM_TL_CONNECTION_STATE_OPEN,
|
|
CAM_TL_CONNECTION_STATE_IN_DELETION
|
|
} CamTLConnectionState;
|
|
|
|
struct _CamTL
|
|
{
|
|
int fd;
|
|
guint connection_ids;
|
|
|
|
GHashTable *connections;
|
|
|
|
guint expected_tpdus;
|
|
|
|
/* buffer containing module data */
|
|
guint8 buffer [HOST_BUFFER_SIZE];
|
|
/* number of bytes written in the buffer */
|
|
guint buffer_size;
|
|
/* index pointing to the first byte of a TPDU's body */
|
|
guint8 *body;
|
|
/* length of the body part */
|
|
guint body_length;
|
|
|
|
/* callbacks */
|
|
void (*request_connection) (CamTL *tl, CamTLConnection *connection);
|
|
void (*connection_created) (CamTL *tl, CamTLConnection *connection);
|
|
void (*connection_deleted) (CamTL *tl, CamTLConnection *connection);
|
|
CamReturn (*connection_data) (CamTL *tl, CamTLConnection *connection,
|
|
guint8 *data, guint length);
|
|
|
|
/* used by the upper layer to extend this layer */
|
|
gpointer user_data;
|
|
};
|
|
|
|
struct _CamTLConnection
|
|
{
|
|
CamTL *tl;
|
|
|
|
guint8 slot;
|
|
guint id;
|
|
CamTLConnectionState state;
|
|
/* TRUE if the last status byte was 0x80, FALSE otherwise */
|
|
gboolean has_data;
|
|
/* NCAS 1.0 sometimes reports that it has data even if it doesn't. After
|
|
* MAX_EMPTY_DATA times that we don't get any data we assume that there's
|
|
* actually no data.
|
|
*/
|
|
guint empty_data;
|
|
/* timer restarted every time the connection is polled */
|
|
GTimer *last_poll;
|
|
|
|
gpointer user_data;
|
|
};
|
|
|
|
CamTL *cam_tl_new (int cam_device_fd);
|
|
void cam_tl_destroy (CamTL *tl);
|
|
|
|
CamReturn cam_tl_create_connection (CamTL *tl,
|
|
guint8 slot, CamTLConnection **connnection);
|
|
CamReturn cam_tl_connection_delete (CamTLConnection *connection);
|
|
|
|
void cam_tl_calc_buffer_size (CamTL *tl,
|
|
guint body_length, guint *buffer_size, guint *offset);
|
|
|
|
CamReturn cam_tl_connection_write (CamTLConnection *connection,
|
|
guint8 *data, guint buffer_size, guint body_length);
|
|
|
|
CamReturn cam_tl_connection_poll (CamTLConnection *connection, gboolean force);
|
|
CamReturn cam_tl_read_all (CamTL *tl, gboolean poll);
|
|
|
|
#endif /* CAM_TRANSPORT_H */
|