mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-24 10:41:04 +00:00
ef16d7558f
This adds two properties: * scte-35-pid: If not 0, enables the SCTE-35 support for the current program. This will write the proper PMT and send SCTE-35 NULL commands (i.e. heartbeats) at a regular interval * scte-35-null-interval: This specifies the interval at which the NULL commands should be sent Sending SCTE-35 commands is done by creating the appropriate SCTE-35 GstMpegtsSection and then sending them on the muxer. See the associated example
252 lines
8.6 KiB
C
252 lines
8.6 KiB
C
/*
|
|
* 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., 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 __TSMUX_H__
|
|
#define __TSMUX_H__
|
|
|
|
#include <glib.h>
|
|
|
|
#include <gst/mpegts/mpegts.h>
|
|
|
|
#include "tsmuxcommon.h"
|
|
#include "tsmuxstream.h"
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
#define TSMUX_MAX_ES_INFO_LENGTH ((1 << 12) - 1)
|
|
|
|
#define TSMUX_PID_AUTO ((guint16)-1)
|
|
|
|
#define TSMUX_START_PROGRAM_ID 0x0001
|
|
#define TSMUX_START_PMT_PID 0x0020
|
|
#define TSMUX_START_ES_PID 0x0040
|
|
|
|
typedef struct TsMuxSection TsMuxSection;
|
|
typedef struct TsMux TsMux;
|
|
|
|
typedef gboolean (*TsMuxWriteFunc) (GstBuffer * buf, void *user_data, gint64 new_pcr);
|
|
typedef void (*TsMuxAllocFunc) (GstBuffer ** buf, void *user_data);
|
|
typedef TsMuxStream * (*TsMuxNewStreamFunc) (guint16 new_pid, guint stream_type, void *user_data);
|
|
|
|
struct TsMuxSection {
|
|
TsMuxPacketInfo pi;
|
|
GstMpegtsSection *section;
|
|
};
|
|
|
|
/* Information for the streams associated with one program */
|
|
struct TsMuxProgram {
|
|
TsMuxSection pmt;
|
|
/* PMT version */
|
|
guint8 pmt_version;
|
|
/* trigger for writing PMT */
|
|
gboolean pmt_changed;
|
|
|
|
/* interval between PMT in MPEG PTS clock time */
|
|
guint pmt_interval;
|
|
|
|
/* Next PMT position, 27 MHz */
|
|
gint64 next_pmt_pcr;
|
|
|
|
/* program ID for the PAT */
|
|
guint16 pgm_number;
|
|
/* PID to write the PMT */
|
|
guint16 pmt_pid;
|
|
|
|
TsMuxSection *scte35_null_section;
|
|
/* SCTE-35 pid (0 if inactive/unused) */
|
|
guint16 scte35_pid;
|
|
/* Interval between SCTE-35 NULL packets in MPEG PTS clock time */
|
|
guint scte35_null_interval;
|
|
/* Next SCTE-35 position, 27 MHz */
|
|
gint64 next_scte35_pcr;
|
|
|
|
/* stream which carries the PCR */
|
|
TsMuxStream *pcr_stream;
|
|
|
|
/* programs TsMuxStream's */
|
|
GArray *streams;
|
|
};
|
|
|
|
struct TsMux {
|
|
/* TsMuxStream* array of all streams */
|
|
guint nb_streams;
|
|
GList *streams;
|
|
|
|
/* TsMuxProgram* array of all programs */
|
|
guint nb_programs;
|
|
GList *programs;
|
|
|
|
/* next auto-generated misc id */
|
|
guint16 next_pgm_no;
|
|
guint16 next_pmt_pid;
|
|
guint16 next_stream_pid;
|
|
|
|
/* Table with TsMuxSection to write */
|
|
GHashTable *si_sections;
|
|
|
|
TsMuxSection pat;
|
|
/* PAT transport_stream_id */
|
|
guint16 transport_id;
|
|
/* PAT version */
|
|
guint8 pat_version;
|
|
/* trigger writing PAT */
|
|
gboolean pat_changed;
|
|
/* interval between PAT in MPEG PTS clock time */
|
|
guint pat_interval;
|
|
/* Next PAT position, 27 MHz */
|
|
gint64 next_pat_pcr;
|
|
|
|
/* interval between PCR in MPEG PTS clock time */
|
|
guint pcr_interval;
|
|
|
|
/* trigger writing Service Information Tables */
|
|
gboolean si_changed;
|
|
/* interval between SIT in MPEG PTS clock time */
|
|
guint si_interval;
|
|
/* Next SIT position, 27 MHz */
|
|
gint64 next_si_pcr;
|
|
|
|
/* callback to write finished packet */
|
|
TsMuxWriteFunc write_func;
|
|
void *write_func_data;
|
|
/* callback to alloc new packet buffer */
|
|
TsMuxAllocFunc alloc_func;
|
|
void *alloc_func_data;
|
|
/* callback to create a new stream */
|
|
TsMuxNewStreamFunc new_stream_func;
|
|
void *new_stream_data;
|
|
|
|
/* scratch space for writing ES_info descriptors */
|
|
guint8 es_info_buf[TSMUX_MAX_ES_INFO_LENGTH];
|
|
|
|
guint64 bitrate;
|
|
guint64 n_bytes;
|
|
|
|
/* For the per-PID continuity counter */
|
|
guint8 pid_packet_counts[8192];
|
|
};
|
|
|
|
/* 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_alloc_func (TsMux *mux, TsMuxAllocFunc func, void *user_data);
|
|
void tsmux_set_new_stream_func (TsMux * mux, TsMuxNewStreamFunc func, void *user_data);
|
|
void tsmux_set_pat_interval (TsMux *mux, guint interval);
|
|
guint tsmux_get_pat_interval (TsMux *mux);
|
|
void tsmux_resend_pat (TsMux *mux);
|
|
guint16 tsmux_get_new_pid (TsMux *mux);
|
|
void tsmux_set_bitrate (TsMux *mux, guint64 bitrate);
|
|
|
|
/* pid/program management */
|
|
TsMuxProgram * tsmux_program_new (TsMux *mux, gint prog_id);
|
|
void tsmux_program_free (TsMuxProgram *program);
|
|
void tsmux_set_pmt_interval (TsMuxProgram *program, guint interval);
|
|
guint tsmux_get_pmt_interval (TsMuxProgram *program);
|
|
void tsmux_resend_pmt (TsMuxProgram *program);
|
|
void tsmux_program_set_scte35_pid (TsMuxProgram *program, guint16 pid);
|
|
guint16 tsmux_program_get_scte35_pid (TsMuxProgram *program);
|
|
void tsmux_program_set_scte35_interval (TsMuxProgram *mux, guint interval);
|
|
|
|
|
|
/* SI table management */
|
|
void tsmux_set_si_interval (TsMux *mux, guint interval);
|
|
guint tsmux_get_si_interval (TsMux *mux);
|
|
void tsmux_resend_si (TsMux *mux);
|
|
gboolean tsmux_add_mpegts_si_section (TsMux * mux, GstMpegtsSection * section);
|
|
|
|
/* One-time sections */
|
|
gboolean tsmux_send_section (TsMux *mux, GstMpegtsSection *section);
|
|
|
|
/* stream management */
|
|
TsMuxStream * tsmux_create_stream (TsMux *mux, guint stream_type, guint16 pid, gchar *language);
|
|
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);
|
|
void tsmux_set_pcr_interval (TsMux * mux, guint freq);
|
|
|
|
/* writing stuff */
|
|
gboolean tsmux_write_stream_packet (TsMux *mux, TsMuxStream *stream);
|
|
|
|
G_END_DECLS
|
|
|
|
#endif
|