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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.
153 lines
4.2 KiB
C
153 lines
4.2 KiB
C
/*
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* camapplicationinfo.h - CAM (EN50221) Application Info resource
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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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#include <string.h>
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#include "camapplicationinfo.h"
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#define GST_CAT_DEFAULT cam_debug_cat
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#define TAG_APPLICATION_INFO_ENQUIRY 0x9F8020
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#define TAG_APPLICATION_INFO_REPLY 0x9F8021
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#define TAG_APPLICATION_INFO_ENTER_MENU 0x9F8022
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static CamReturn session_request_impl (CamALApplication * application,
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CamSLSession * session, CamSLResourceStatus * status);
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static CamReturn open_impl (CamALApplication * application,
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CamSLSession * session);
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static CamReturn close_impl (CamALApplication * application,
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CamSLSession * session);
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static CamReturn data_impl (CamALApplication * application,
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CamSLSession * session, guint tag, guint8 * buffer, guint length);
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CamApplicationInfo *
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cam_application_info_new ()
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{
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CamApplicationInfo *info;
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CamALApplication *application;
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info = g_new0 (CamApplicationInfo, 1);
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application = CAM_AL_APPLICATION (info);
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_cam_al_application_init (application);
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application->resource_id = CAM_AL_APPLICATION_INFO_ID;
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application->session_request = session_request_impl;
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application->open = open_impl;
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application->close = close_impl;
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application->data = data_impl;
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return info;
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}
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void
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cam_application_info_destroy (CamApplicationInfo * info)
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{
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_cam_al_application_destroy (CAM_AL_APPLICATION (info));
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g_free (info);
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}
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static CamReturn
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send_simple (CamApplicationInfo * info, CamSLSession * session, guint tag)
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{
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guint8 *buffer;
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guint offset;
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guint buffer_size;
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CamReturn ret;
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cam_al_calc_buffer_size (CAM_AL_APPLICATION (info)->al, 0, &buffer_size,
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&offset);
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buffer = g_malloc (buffer_size);
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ret = cam_al_application_write (CAM_AL_APPLICATION (info), session,
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tag, buffer, buffer_size, 0);
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g_free (buffer);
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return ret;
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}
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static CamReturn
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send_application_info_enquiry (CamApplicationInfo * info,
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CamSLSession * session)
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{
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GST_DEBUG ("sending application info enquiry");
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return send_simple (info, session, TAG_APPLICATION_INFO_ENQUIRY);
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}
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static CamReturn
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session_request_impl (CamALApplication * application,
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CamSLSession * session, CamSLResourceStatus * status)
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{
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*status = CAM_SL_RESOURCE_STATUS_OPEN;
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return CAM_RETURN_OK;
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}
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static CamReturn
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open_impl (CamALApplication * application, CamSLSession * session)
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{
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CamApplicationInfo *info = CAM_APPLICATION_INFO (application);
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return send_application_info_enquiry (info, session);
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}
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static CamReturn
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close_impl (CamALApplication * application, CamSLSession * session)
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{
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return CAM_RETURN_OK;
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}
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static CamReturn
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handle_application_info_reply (CamApplicationInfo * info,
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CamSLSession * session, guint8 * buffer, guint length)
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{
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guint8 type;
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guint8 menu_length;
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gchar menu[255];
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type = buffer[0];
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menu_length = buffer[5];
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menu_length = MIN (menu_length, 255);
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memcpy (menu, buffer + 6, menu_length);
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menu[menu_length] = 0;
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GST_INFO ("application info reply, type: %d, menu: %s", type, menu);
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return CAM_RETURN_OK;
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}
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static CamReturn
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data_impl (CamALApplication * application, CamSLSession * session,
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guint tag, guint8 * buffer, guint length)
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{
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CamReturn ret;
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CamApplicationInfo *info = CAM_APPLICATION_INFO (application);
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switch (tag) {
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case TAG_APPLICATION_INFO_REPLY:
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ret = handle_application_info_reply (info, session, buffer, length);
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break;
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default:
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g_return_val_if_reached (CAM_RETURN_ERROR);
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}
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return ret;
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}
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