/* * Copyright 2006 BBC and Fluendo S.A. * * This library is licensed under 4 different licenses and you * can choose to use it under the terms of any one of them. The * four licenses are the MPL 1.1, the LGPL, the GPL and the MIT * license. * * MPL: * * The contents of this file are subject to the Mozilla Public License * Version 1.1 (the "License"); you may not use this file except in * compliance with the License. You may obtain a copy of the License at * http://www.mozilla.org/MPL/. * * Software distributed under the License is distributed on an "AS IS" * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the * License for the specific language governing rights and limitations * under the License. * * LGPL: * * 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. * * GPL: * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * * MIT: * * Unless otherwise indicated, Source Code is licensed under MIT license. * See further explanation attached in License Statement (distributed in the file * LICENSE). * * Permission is hereby granted, free of charge, to any person obtaining a copy of * this software and associated documentation files (the "Software"), to deal in * the Software without restriction, including without limitation the rights to * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies * of the Software, and to permit persons to whom the Software is furnished to do * so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in all * copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. * */ #ifndef __TSMUX_H__ #define __TSMUX_H__ #include #include "tsmuxcommon.h" #include "tsmuxstream.h" G_BEGIN_DECLS #define TSMUX_MAX_ES_INFO_LENGTH ((1 << 12) - 1) #define TSMUX_MAX_SECTION_LENGTH (4096) #define TSMUX_PID_AUTO ((guint16)-1) typedef struct TsMuxSection TsMuxSection; typedef struct TsMux TsMux; typedef gboolean (*TsMuxWriteFunc) (guint8 *data, guint len, void *user_data, gint64 new_pcr, gboolean delta); struct TsMuxSection { TsMuxPacketInfo pi; /* Private sections can be up to 4096 bytes */ guint8 data[TSMUX_MAX_SECTION_LENGTH]; }; /* Information for the streams associated with one program */ struct TsMuxProgram { TsMuxSection pmt; guint8 pmt_version; gboolean pmt_changed; guint pmt_frequency; gint64 last_pmt_ts; guint16 pgm_number; /* program ID for the PAT */ guint16 pmt_pid; /* PID to write the PMT */ TsMuxStream *pcr_stream; /* Stream which carries the PCR */ gint64 last_pcr; GArray *streams; /* Array of TsMuxStream pointers */ guint nb_streams; }; struct TsMux { guint nb_streams; GList *streams; /* TsMuxStream* array of all streams */ guint nb_programs; GList *programs; /* TsMuxProgram* array of all programs */ guint16 transport_id; guint16 next_pgm_no; guint16 next_pmt_pid; guint16 next_stream_pid; TsMuxSection pat; guint8 pat_version; gboolean pat_changed; guint pat_frequency; gint64 last_pat_ts; guint8 packet_buf[TSMUX_PACKET_LENGTH]; TsMuxWriteFunc write_func; void *write_func_data; /* Scratch space for writing ES_info descriptors */ guint8 es_info_buf[TSMUX_MAX_ES_INFO_LENGTH]; gint64 new_pcr; }; /* create/free new muxer session */ TsMux * tsmux_new (void); void tsmux_free (TsMux *mux); /* Setting muxing session properties */ void tsmux_set_write_func (TsMux *mux, TsMuxWriteFunc func, void *user_data); void tsmux_set_pat_frequency (TsMux *mux, guint freq); guint tsmux_get_pat_frequency (TsMux *mux); guint16 tsmux_get_new_pid (TsMux *mux); /* pid/program management */ TsMuxProgram * tsmux_program_new (TsMux *mux); void tsmux_program_free (TsMuxProgram *program); void tsmux_set_pmt_frequency (TsMuxProgram *program, guint freq); guint tsmux_get_pmt_frequency (TsMuxProgram *program); /* stream management */ TsMuxStream * tsmux_create_stream (TsMux *mux, TsMuxStreamType stream_type, guint16 pid); TsMuxStream * tsmux_find_stream (TsMux *mux, guint16 pid); void tsmux_program_add_stream (TsMuxProgram *program, TsMuxStream *stream); void tsmux_program_set_pcr_stream (TsMuxProgram *program, TsMuxStream *stream); /* writing stuff */ gboolean tsmux_write_stream_packet (TsMux *mux, TsMuxStream *stream, gboolean delta); G_END_DECLS #endif