1 /* 2 * camutils.h - GStreamer CAM (EN50221) support 3 * Copyright (C) 2007 Alessandro Decina 4 * 5 * Authors: 6 * Alessandro Decina <alessandro.d@gmail.com> 7 * 8 * This library is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU Library General Public 10 * License as published by the Free Software Foundation; either 11 * version 2 of the License, or (at your option) any later version. 12 * 13 * This library is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 * Library General Public License for more details. 17 * 18 * You should have received a copy of the GNU Library General Public 19 * License along with this library; if not, write to the 20 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, 21 * Boston, MA 02110-1301, USA. 22 */ 23 24 #ifndef CAM_UTILS_H 25 #define CAM_UTILS_H 26 27 #include <glib.h> 28 #include <gst/gst.h> 29 #include <gst/mpegts/mpegts.h> 30 31 #define TPDU_HEADER_SIZE_INDICATOR 0x80 32 33 #define CAM_FAILED(ret) (ret <= CAM_RETURN_ERROR) 34 35 typedef enum 36 { 37 /* generic */ 38 CAM_RETURN_OK = 0, 39 CAM_RETURN_ERROR = -1, 40 41 /* transport specific */ 42 CAM_RETURN_TRANSPORT_ERROR = -10, 43 CAM_RETURN_TRANSPORT_TOO_MANY_CONNECTIONS = -11, 44 CAM_RETURN_TRANSPORT_TIMEOUT = -12, 45 CAM_RETURN_TRANSPORT_POLL = -13, 46 47 /* session specific */ 48 CAM_RETURN_SESSION_ERROR = -30, 49 CAM_RETURN_SESSION_TOO_MANY_SESSIONS = -31, 50 51 /* application specific */ 52 CAM_RETURN_APPLICATION_ERROR = -40, 53 } CamReturn; 54 55 guint8 cam_calc_length_field_size (guint length); 56 guint8 cam_write_length_field (guint8 *buff, guint length); 57 guint8 cam_read_length_field (guint8 *buff, guint *length); 58 guint8 *cam_build_ca_pmt (GstMpegtsPMT *pmt, guint8 list_management, guint8 cmd_id, guint *size); 59 60 #endif /* CAM_UTILS_H */ 61