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/*
* Copyright 2006, 2007, 2008, 2009, 2010 Fluendo S.A.
* Authors: Jan Schmidt <jan@fluendo.com>
* Kapil Agrawal <kapil@fluendo.com>
* Julien Moutte <julien@fluendo.com>
*
* 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 <gst/gst.h>
#include <gst/base/gstcollectpads.h>
#include <gst/base/gstadapter.h>
G_BEGIN_DECLS
#include <tsmux/tsmux.h>
#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 MPEGTIME_TO_GSTTIME(time) (gst_util_uint64_scale ((time), \
GST_MSECOND/10, CLOCK_BASE))
#define GSTTIME_TO_MPEGTIME(time) (gst_util_uint64_scale ((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 MAX_PROG_NUMBER 32
#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;
TsMuxProgram *programs[MAX_PROG_NUMBER];
/* properties */
gboolean m2ts_mode;
GstStructure *prog_map;
guint pat_interval;
guint pmt_interval;
gint alignment;
/* 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;
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;
};
#define MPEG_TS_PAD_DATA(data) ((MpegTsPadData *)(data))
struct MpegTsPadData {
/* parent */
GstCollectData collect;
gint pid;
TsMuxStream *stream;
/* most recent valid TS for this stream */
GstClockTime last_pts;
GstClockTime last_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 == idx to which it is attached to (not program pid) */
gint prog_id;
/* program this stream belongs to == mux->programs[prog_id] */
TsMuxProgram *prog;
gchar *language;
};
GType mpegtsmux_get_type (void);
G_END_DECLS
#endif
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