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Diffstat (limited to 'gst/mpegtsmux/tsmux/tsmux.h')
| -rw-r--r-- | gst/mpegtsmux/tsmux/tsmux.h | 183 |
1 files changed, 183 insertions, 0 deletions
diff --git a/gst/mpegtsmux/tsmux/tsmux.h b/gst/mpegtsmux/tsmux/tsmux.h new file mode 100644 index 00000000..fb0a81b5 --- /dev/null +++ b/gst/mpegtsmux/tsmux/tsmux.h @@ -0,0 +1,183 @@ +/* + * 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 <glib.h> + +#include <tsmux/tsmuxcommon.h> +#include <tsmux/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); + +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); + +G_END_DECLS + +#endif |