/* * Copyright 2006, 2007, 2008, 2009, 2010 Fluendo S.A. * Authors: Jan Schmidt * Kapil Agrawal * Julien Moutte * * 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., 51 Franklin St, Fifth Floor, * Boston, MA 02110-1301, 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, 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 __MPEGTSMUX_H__ #define __MPEGTSMUX_H__ #include #include #include G_BEGIN_DECLS #include #define GST_TYPE_MPEG_TSMUX (mpegtsmux_get_type()) #define GST_MPEG_TSMUX(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_MPEG_TSMUX, MpegTsMux)) #define CLOCK_BASE 9LL #define CLOCK_FREQ (CLOCK_BASE * 10000) /* 90 kHz PTS clock */ #define CLOCK_FREQ_SCR (CLOCK_FREQ * 300) /* 27 MHz SCR clock */ #define GSTTIME_TO_MPEGTIME(time) \ (((time) > 0 ? (gint64) 1 : (gint64) -1) * \ (gint64) gst_util_uint64_scale (ABS(time), CLOCK_BASE, GST_MSECOND/10)) /* 27 MHz SCR conversions: */ #define MPEG_SYS_TIME_TO_GSTTIME(time) (gst_util_uint64_scale ((time), \ GST_USECOND, CLOCK_FREQ_SCR / 1000000)) #define GSTTIME_TO_MPEG_SYS_TIME(time) (gst_util_uint64_scale ((time), \ CLOCK_FREQ_SCR / 1000000, GST_USECOND)) #define NORMAL_TS_PACKET_LENGTH 188 #define M2TS_PACKET_LENGTH 192 #define DEFAULT_PROG_ID 0 typedef struct MpegTsMux MpegTsMux; typedef struct MpegTsMuxClass MpegTsMuxClass; typedef struct MpegTsPadData MpegTsPadData; typedef GstBuffer * (*MpegTsPadDataPrepareFunction) (GstBuffer * buf, MpegTsPadData * data, MpegTsMux * mux); typedef void (*MpegTsPadDataFreePrepareDataFunction) (gpointer prepare_data); struct MpegTsMux { GstElement parent; GstPad *srcpad; GstCollectPads *collect; TsMux *tsmux; GHashTable *programs; /* properties */ gboolean m2ts_mode; GstStructure *prog_map; guint pat_interval; guint pmt_interval; gint alignment; guint si_interval; /* state */ gboolean first; GstClockTime pending_key_unit_ts; GstEvent *force_key_unit_event; /* write callback handling/state */ GstFlowReturn last_flow_ret; GList *streamheader; gboolean streamheader_sent; gboolean is_delta; gboolean is_header; GstClockTime last_ts; /* m2ts specific */ gint64 previous_pcr; gint64 previous_offset; gint64 pcr_rate_num; gint64 pcr_rate_den; GstAdapter *adapter; /* output buffer aggregation */ GstAdapter *out_adapter; GstBuffer *out_buffer; #if 0 /* SPN/PTS index handling */ GstIndex *element_index; gint spn_count; #endif }; struct MpegTsMuxClass { GstElementClass parent_class; }; struct MpegTsPadData { /* parent */ GstCollectData collect; gint pid; TsMuxStream *stream; /* most recent valid DTS for this stream */ gint64 min_dts; /* most recent DTS */ gint64 dts; #if 0 /* (optional) index writing */ gint element_index_writer_id; #endif /* optional codec data available in the caps */ GstBuffer *codec_data; /* Opaque data pointer to a structure used by the prepare function */ gpointer prepare_data; /* handler to prepare input data */ MpegTsPadDataPrepareFunction prepare_func; /* handler to free the private data */ MpegTsPadDataFreePrepareDataFunction free_func; /* program id to which it is attached to (not program pid) */ gint prog_id; /* program this stream belongs to */ TsMuxProgram *prog; gchar *language; }; GType mpegtsmux_get_type (void); G_END_DECLS #endif