mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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90b27a3c8b
Allows use to add API in the future without breaking ABI. We broke the API/ABI once between 1.2 and 1.4, let's try to avoid this in the future even if this is an unstable library. https://bugzilla.gnome.org/show_bug.cgi?id=730914
401 lines
16 KiB
C
401 lines
16 KiB
C
/*
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* mpegtspacketizer.h -
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* Copyright (C) 2013 Edward Hervey
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*
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* Authors:
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* Edward Hervey <edward@collabora.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef GST_MPEGTS_SECTION_H
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#define GST_MPEGTS_SECTION_H
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#include <gst/gst.h>
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#include <gst/mpegts/gstmpegtsdescriptor.h>
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G_BEGIN_DECLS
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typedef struct _GstMpegtsSection GstMpegtsSection;
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#define GST_TYPE_MPEGTS_SECTION (gst_mpegts_section_get_type())
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#define GST_MPEGTS_SECTION(section) ((GstMpegtsSection*) section)
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#define GST_MPEGTS_SECTION_TYPE(section) (GST_MPEGTS_SECTION (section)->section_type)
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GType gst_mpegts_section_get_type (void);
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/**
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* GstMpegtsSectionType:
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* @GST_MPEGTS_SECTION_UNKNOWN: Unknown section type
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* @GST_MPEGTS_SECTION_PAT: Program Association Table (ISO/IEC 13818-1)
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* @GST_MPEGTS_SECTION_PMT: Program Map Table (ISO/IEC 13818-1)
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* @GST_MPEGTS_SECTION_CAT: Conditional Access Table (ISO/IEC 13818-1)
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* @GST_MPEGTS_SECTION_TSDT: Transport Stream Description Table (ISO/IEC 13818-1)
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* @GST_MPEGTS_SECTION_EIT: Event Information Table (EN 300 468)
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* @GST_MPEGTS_SECTION_NIT: Network Information Table (ISO/IEC 13818-1 / EN 300 468)
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* @GST_MPEGTS_SECTION_BAT: Bouquet Association Table ((EN 300 468)
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* @GST_MPEGTS_SECTION_SDT: Service Description Table (EN 300 468)
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* @GST_MPEGTS_SECTION_TDT: Time and Date Table (EN 300 468)
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* @GST_MPEGTS_SECTION_TOT: Time Offset Table (EN 300 468)
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* @GST_MPEGTS_SECTION_ATSC_TVCT: ATSC Terrestrial Virtual Channel Table (A65)
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* @GST_MPEGTS_SECTION_ATSC_CVCT: ATSC Cable Virtual Channel Table (A65)
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* @GST_MPEGTS_SECTION_ATSC_MGT: ATSC Master Guide Table (A65)
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* @GST_MPEGTS_SECTION_ATSC_ETT: ATSC Extended Text Table (A65)
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* @GST_MPEGTS_SECTION_ATSC_EIT: ATSC Event Information Table (A65)
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* @GST_MPEGTS_SECTION_ATSC_STT: ATSC System Time Table (A65)
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*
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* Types of #GstMpegtsSection that the library handles.
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*/
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typedef enum {
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GST_MPEGTS_SECTION_UNKNOWN = 0,
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GST_MPEGTS_SECTION_PAT,
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GST_MPEGTS_SECTION_PMT,
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GST_MPEGTS_SECTION_CAT,
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GST_MPEGTS_SECTION_TSDT,
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GST_MPEGTS_SECTION_EIT,
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GST_MPEGTS_SECTION_NIT,
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GST_MPEGTS_SECTION_BAT,
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GST_MPEGTS_SECTION_SDT,
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GST_MPEGTS_SECTION_TDT,
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GST_MPEGTS_SECTION_TOT,
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GST_MPEGTS_SECTION_ATSC_TVCT,
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GST_MPEGTS_SECTION_ATSC_CVCT,
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GST_MPEGTS_SECTION_ATSC_MGT,
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GST_MPEGTS_SECTION_ATSC_ETT,
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GST_MPEGTS_SECTION_ATSC_EIT,
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GST_MPEGTS_SECTION_ATSC_STT
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} GstMpegtsSectionType;
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/**
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* GstMpegtsSectionTableID:
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*
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* Values for a #GstMpegtsSection table_id
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*
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* These are the registered ITU H.222.0 | ISO/IEC 13818-1 table_id variants.
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*
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* see also #GstMpegtsSectionATSCTableID, #GstMpegtsSectionDVBTableID, and
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* #GstMpegtsSectionSCTETableID
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*/
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typedef enum {
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/* ITU H.222.0 / IEC 13818-1 */
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GST_MTS_TABLE_ID_PROGRAM_ASSOCIATION = 0x00,
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GST_MTS_TABLE_ID_CONDITIONAL_ACCESS = 0x01,
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GST_MTS_TABLE_ID_TS_PROGRAM_MAP = 0x02,
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GST_MTS_TABLE_ID_TS_DESCRIPTION = 0x03,
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GST_MTS_TABLE_ID_14496_SCENE_DESCRIPTION = 0x04,
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GST_MTS_TABLE_ID_14496_OBJET_DESCRIPTOR = 0x05,
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GST_MTS_TABLE_ID_METADATA = 0x06,
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GST_MTS_TABLE_ID_IPMP_CONTROL_INFORMATION = 0x07,
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/* 0x08 - 0x39 : ITU H.222.0 | ISO/IEC 13818-1 reserved */
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/* IEC 13818-6 (DSM-CC) */
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GST_MTS_TABLE_ID_DSM_CC_MULTIPROTO_ENCAPSULATED_DATA = 0x3A,
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GST_MTS_TABLE_ID_DSM_CC_U_N_MESSAGES = 0x3B,
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GST_MTS_TABLE_ID_DSM_CC_DOWNLOAD_DATA_MESSAGES = 0x3C,
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GST_MTS_TABLE_ID_DSM_CC_STREAM_DESCRIPTORS = 0x3D,
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GST_MTS_TABLE_ID_DSM_CC_PRIVATE_DATA = 0x3E,
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GST_MTS_TABLE_ID_DSM_CC_ADDRESSABLE_SECTIONS = 0x3F,
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/* Unset */
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GST_MTS_TABLE_ID_UNSET = 0xFF
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} GstMpegtsSectionTableID;
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typedef gboolean (*GstMpegtsPacketizeFunc) (GstMpegtsSection *section);
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/**
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* GstMpegtsSection:
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* @section_type: The type of section
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* @pid: The pid on which this section was found
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* @table_id: The table id of this section
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* @subtable_extension: This meaning differs per section. See the documentation
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* of the parsed section type for the meaning of this field
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* @version_number: Version of the section.
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* @current_next_indicator: Applies to current/next stream or not
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* @section_number: Number of the section (if multiple)
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* @last_section_number: Number of the last expected section (if multiple)
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* @crc: CRC
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*
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* Mpeg-TS Section Information (SI) (ISO/IEC 13818-1)
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*/
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struct _GstMpegtsSection
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{
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/*< private >*/
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GstMiniObject parent;
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/*< public >*/
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GstMpegtsSectionType section_type;
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guint16 pid;
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guint8 table_id;
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guint16 subtable_extension;
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guint8 version_number;
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gboolean current_next_indicator;
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guint8 section_number;
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guint8 last_section_number;
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guint32 crc;
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/*< private >*/
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/* data: Points to beginning of section data
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* i.e. the first byte is the table_id field */
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guint8 *data;
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/* section_length: length of data (including final CRC if present) */
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guint section_length;
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/* cached_parsed: cached copy of parsed section */
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gpointer *cached_parsed;
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/* destroy_parsed: function to clear cached_parsed */
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GDestroyNotify destroy_parsed;
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/* offset: offset of the section within the container stream */
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guint64 offset;
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/* short_section: TRUE if section_syntax_indicator == 0
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* FIXME : Maybe make public later on when allowing creation of
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* sections to that people can create private short sections ? */
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gboolean short_section;
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GstMpegtsPacketizeFunc packetizer;
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/* Padding for future extension */
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gpointer _gst_reserved[GST_PADDING];
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};
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GBytes *gst_mpegts_section_get_data (GstMpegtsSection *section);
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/* PAT */
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#define GST_TYPE_MPEGTS_PAT_PROGRAM (gst_mpegts_pat_program_get_type())
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typedef struct _GstMpegtsPatProgram GstMpegtsPatProgram;
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/**
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* GstMpegtsPatProgram:
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* @program_number: the program number
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* @network_or_program_map_PID: the network of program map PID
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*
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* A program entry from a Program Association Table (ITU H.222.0, ISO/IEC 13818-1).
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*/
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struct _GstMpegtsPatProgram
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{
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guint16 program_number;
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guint16 network_or_program_map_PID;
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};
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GPtrArray *gst_mpegts_section_get_pat (GstMpegtsSection *section);
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GType gst_mpegts_pat_program_get_type (void);
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GPtrArray *gst_mpegts_pat_new (void);
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GstMpegtsPatProgram *gst_mpegts_pat_program_new (void);
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GstMpegtsSection *gst_mpegts_section_from_pat (GPtrArray * programs,
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guint16 ts_id);
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/* CAT */
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GPtrArray *gst_mpegts_section_get_cat (GstMpegtsSection *section);
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/* PMT */
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typedef struct _GstMpegtsPMTStream GstMpegtsPMTStream;
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typedef struct _GstMpegtsPMT GstMpegtsPMT;
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#define GST_TYPE_MPEGTS_PMT (gst_mpegts_pmt_get_type())
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#define GST_TYPE_MPEGTS_PMT_STREAM (gst_mpegts_pmt_stream_get_type())
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/**
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* GstMpegtsStreamType:
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* @GST_MPEGTS_STREAM_TYPE_RESERVED_00: ITU-T | ISO/IEC Reserved
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* @GST_MPEGTS_STREAM_TYPE_VIDEO_MPEG1: ISO/IEC 11172-2 Video
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* @GST_MPEGTS_STREAM_TYPE_VIDEO_MPEG2: Rec. ITU-T H.262 | ISO/IEC 13818-2
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* Video or ISO/IEC 11172-2 constrained parameter video stream
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* @GST_MPEGTS_STREAM_TYPE_AUDIO_MPEG1: ISO/IEC 11172-3 Audio
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* @GST_MPEGTS_STREAM_TYPE_AUDIO_MPEG2: ISO/IEC 13818-3 Audio
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* @GST_MPEGTS_STREAM_TYPE_PRIVATE_SECTIONS: private sections
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* @GST_MPEGTS_STREAM_TYPE_PRIVATE_PES_PACKETS: PES packets containing private data
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* @GST_MPEGTS_STREAM_TYPE_MHEG: ISO/IEC 13522 MHEG
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* @GST_MPEGTS_STREAM_TYPE_DSM_CC: Annex A DSM-CC
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* @GST_MPEGTS_STREAM_TYPE_H_222_1: Rec. ITU-T H.222.1
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* @GST_MPEGTS_STREAM_TYPE_DSMCC_A: ISO/IEC 13818-6 type A
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* @GST_MPEGTS_STREAM_TYPE_DSMCC_B: ISO/IEC 13818-6 type B
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* @GST_MPEGTS_STREAM_TYPE_DSMCC_C: ISO/IEC 13818-6 type C
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* @GST_MPEGTS_STREAM_TYPE_DSMCC_D: ISO/IEC 13818-6 type D
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* @GST_MPEGTS_STREAM_TYPE_AUXILIARY: auxiliary streams
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* @GST_MPEGTS_STREAM_TYPE_AUDIO_AAC_ADTS: ISO/IEC 13818-7 Audio with ADTS
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* transport syntax
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* @GST_MPEGTS_STREAM_TYPE_VIDEO_MPEG4: ISO/IEC 14496-2 Visual
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* @GST_MPEGTS_STREAM_TYPE_AUDIO_AAC_LATM: ISO/IEC 14496-3 Audio with the LATM
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* transport syntax as defined in ISO/IEC 14496-3
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* @GST_MPEGTS_STREAM_TYPE_SL_FLEXMUX_PES_PACKETS: ISO/IEC 14496-1
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* SL-packetized stream or FlexMux stream carried in PES packets
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* @GST_MPEGTS_STREAM_TYPE_SL_FLEXMUX_SECTIONS: ISO/IEC 14496-1 SL-packetized
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* stream or FlexMux stream carried in ISO/IEC 14496_sections
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* @GST_MPEGTS_STREAM_TYPE_SYNCHRONIZED_DOWNLOAD: ISO/IEC 13818-6 Synchronized
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* Download Protocol
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* @GST_MPEGTS_STREAM_TYPE_METADATA_PES_PACKETS: Metadata carried in PES packets
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* @GST_MPEGTS_STREAM_TYPE_METADATA_SECTIONS: Metadata carried in metadata_sections
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* @GST_MPEGTS_STREAM_TYPE_METADATA_DATA_CAROUSEL: Metadata carried in ISO/IEC
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* 13818-6 Data Carousel
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* @GST_MPEGTS_STREAM_TYPE_METADATA_OBJECT_CAROUSEL: Metadata carried in
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* ISO/IEC 13818-6 Object Carousel
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* @GST_MPEGTS_STREAM_TYPE_METADATA_SYNCHRONIZED_DOWNLOAD: Metadata carried in
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* ISO/IEC 13818-6 Synchronized Download Protocol
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* @GST_MPEGTS_STREAM_TYPE_MPEG2_IPMP: IPMP stream (defined in ISO/IEC 13818-11,
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* MPEG-2 IPMP)
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* @GST_MPEGTS_STREAM_TYPE_VIDEO_H264: AVC video stream conforming to one or
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* more profiles defined in Annex A of Rec. ITU-T H.264 | ISO/IEC 14496-10 or
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* AVC video sub-bitstream of SVC as defined in 2.1.78 or MVC base view
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* sub-bitstream, as defined in 2.1.85, or AVC video sub-bitstream of MVC, as
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* defined in 2.1.88
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* @GST_MPEGTS_STREAM_TYPE_AUDIO_AAC_CLEAN: ISO/IEC 14496-3 Audio, without
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* using any additional transport syntax, such as DST, ALS and SLS
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* @GST_MPEGTS_STREAM_TYPE_MPEG4_TIMED_TEXT: ISO/IEC 14496-17 Text
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* @GST_MPEGTS_STREAM_TYPE_VIDEO_RVC: Auxiliary video stream as defined in
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* ISO/IEC 23002-3
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* @GST_MPEGTS_STREAM_TYPE_VIDEO_H264_SVC_SUB_BITSTREAM: SVC video sub-bitstream
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* of an AVC video stream conforming to one or more profiles defined in Annex G
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* of Rec. ITU-T H.264 | ISO/IEC 14496-10
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* @GST_MPEGTS_STREAM_TYPE_VIDEO_H264_MVC_SUB_BITSTREAM: MVC video sub-bitstream
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* of an AVC video stream conforming to one or more profiles defined in Annex H
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* of Rec. ITU-T H.264 | ISO/IEC 14496-10
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* @GST_MPEGTS_STREAM_TYPE_VIDEO_JP2K: Video stream conforming to one or more
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* profiles as defined in Rec. ITU-T T.800 | ISO/IEC 15444-1
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* @GST_MPEGTS_STREAM_TYPE_VIDEO_MPEG2_STEREO_ADDITIONAL_VIEW: Additional view
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* Rec. ITU-T H.262 | ISO/IEC 13818-2 video stream for service-compatible
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* stereoscopic 3D services
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* @GST_MPEGTS_STREAM_TYPE_VIDEO_H264_STEREO_ADDITIONAL_VIEW: Additional view
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* Rec. ITU-T H.264 | ISO/IEC 14496-10 video stream conforming to one or more
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* profiles defined in Annex A for service-compatible stereoscopic 3D services
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* @GST_MPEGTS_STREAM_TYPE_IPMP_STREAM: IPMP stream
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*
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* Type of mpeg-ts stream type.
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*
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* These values correspond to the base standard registered types. Depending
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* on the variant of mpeg-ts being used (Bluray, ATSC, DVB, ...), other
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* types might also be used, but will not conflict with these.
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*
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* Corresponds to table 2-34 of ITU H.222.0 | ISO/IEC 13818-1
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*/
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typedef enum {
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GST_MPEGTS_STREAM_TYPE_RESERVED_00 = 0x00,
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GST_MPEGTS_STREAM_TYPE_VIDEO_MPEG1 = 0x01,
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GST_MPEGTS_STREAM_TYPE_VIDEO_MPEG2 = 0x02,
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GST_MPEGTS_STREAM_TYPE_AUDIO_MPEG1 = 0x03,
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GST_MPEGTS_STREAM_TYPE_AUDIO_MPEG2 = 0x04,
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GST_MPEGTS_STREAM_TYPE_PRIVATE_SECTIONS = 0x05,
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GST_MPEGTS_STREAM_TYPE_PRIVATE_PES_PACKETS = 0x06,
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GST_MPEGTS_STREAM_TYPE_MHEG = 0x07,
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GST_MPEGTS_STREAM_TYPE_DSM_CC = 0x08,
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GST_MPEGTS_STREAM_TYPE_H_222_1 = 0x09,
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GST_MPEGTS_STREAM_TYPE_DSMCC_A = 0x0a,
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GST_MPEGTS_STREAM_TYPE_DSMCC_B = 0x0b,
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GST_MPEGTS_STREAM_TYPE_DSMCC_C = 0x0c,
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GST_MPEGTS_STREAM_TYPE_DSMCC_D = 0x0d,
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GST_MPEGTS_STREAM_TYPE_AUXILIARY = 0x0e,
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GST_MPEGTS_STREAM_TYPE_AUDIO_AAC_ADTS = 0x0f,
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GST_MPEGTS_STREAM_TYPE_VIDEO_MPEG4 = 0x10,
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GST_MPEGTS_STREAM_TYPE_AUDIO_AAC_LATM = 0x11,
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GST_MPEGTS_STREAM_TYPE_SL_FLEXMUX_PES_PACKETS = 0x12,
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GST_MPEGTS_STREAM_TYPE_SL_FLEXMUX_SECTIONS = 0x13,
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GST_MPEGTS_STREAM_TYPE_SYNCHRONIZED_DOWNLOAD = 0x14,
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GST_MPEGTS_STREAM_TYPE_METADATA_PES_PACKETS = 0x15,
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GST_MPEGTS_STREAM_TYPE_METADATA_SECTIONS = 0x16,
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GST_MPEGTS_STREAM_TYPE_METADATA_DATA_CAROUSEL = 0x17,
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GST_MPEGTS_STREAM_TYPE_METADATA_OBJECT_CAROUSEL = 0x18,
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GST_MPEGTS_STREAM_TYPE_METADATA_SYNCHRONIZED_DOWNLOAD = 0x19,
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GST_MPEGTS_STREAM_TYPE_MPEG2_IPMP = 0x1a,
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GST_MPEGTS_STREAM_TYPE_VIDEO_H264 = 0x1b,
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GST_MPEGTS_STREAM_TYPE_AUDIO_AAC_CLEAN = 0x1c,
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GST_MPEGTS_STREAM_TYPE_MPEG4_TIMED_TEXT = 0x1d,
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GST_MPEGTS_STREAM_TYPE_VIDEO_RVC = 0x1e,
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GST_MPEGTS_STREAM_TYPE_VIDEO_H264_SVC_SUB_BITSTREAM = 0x1f,
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GST_MPEGTS_STREAM_TYPE_VIDEO_H264_MVC_SUB_BITSTREAM = 0x20,
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GST_MPEGTS_STREAM_TYPE_VIDEO_JP2K = 0x21,
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GST_MPEGTS_STREAM_TYPE_VIDEO_MPEG2_STEREO_ADDITIONAL_VIEW = 0x22,
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GST_MPEGTS_STREAM_TYPE_VIDEO_H264_STEREO_ADDITIONAL_VIEW = 0x23,
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GST_MPEGTS_STREAM_TYPE_VIDEO_HEVC = 0x24,
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/* 0x24 - 0x7e : Rec. ITU-T H.222.0 | ISO/IEC 13818-1 Reserved */
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GST_MPEGTS_STREAM_TYPE_IPMP_STREAM = 0x7f
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/* 0x80 - 0xff : User Private (or defined in other specs) */
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} GstMpegtsStreamType;
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/**
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* GstMpegtsPMTStream:
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* @stream_type: the type of stream. See #GstMpegtsStreamType
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* @pid: the PID of the stream
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* @descriptors: (element-type GstMpegtsDescriptor): the descriptors of the
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* stream
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*
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* An individual stream definition.
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*/
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struct _GstMpegtsPMTStream
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{
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guint8 stream_type;
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guint16 pid;
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GPtrArray *descriptors;
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};
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/**
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* GstMpegtsPMT:
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* @pcr_pid: PID of the stream containing PCR
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* @descriptors: (element-type GstMpegtsDescriptor): array of #GstMpegtsDescriptor
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* @streams: (element-type GstMpegtsPMTStream): Array of #GstMpegtsPMTStream
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*
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* Program Map Table (ISO/IEC 13818-1).
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*
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* The program_number is contained in the subtable_extension field of the
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* container #GstMpegtsSection.
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*/
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struct _GstMpegtsPMT
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{
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guint16 pcr_pid;
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guint16 program_number;
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GPtrArray *descriptors;
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GPtrArray *streams;
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};
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GType gst_mpegts_pmt_get_type (void);
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GType gst_mpegts_pmt_stream_get_type (void);
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GstMpegtsPMT *gst_mpegts_pmt_new (void);
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GstMpegtsPMTStream *gst_mpegts_pmt_stream_new (void);
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const GstMpegtsPMT *gst_mpegts_section_get_pmt (GstMpegtsSection *section);
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GstMpegtsSection *gst_mpegts_section_from_pmt (GstMpegtsPMT *pmt, guint16 pid);
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/* TSDT */
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GPtrArray *gst_mpegts_section_get_tsdt (GstMpegtsSection *section);
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/* generic */
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#define gst_mpegts_section_ref(section) ((GstMpegtsSection*) gst_mini_object_ref (GST_MINI_OBJECT_CAST (section)))
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#define gst_mpegts_section_unref(section) (gst_mini_object_unref (GST_MINI_OBJECT_CAST (section)))
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GstMessage *gst_message_new_mpegts_section (GstObject *parent, GstMpegtsSection *section);
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gboolean gst_mpegts_section_send_event (GstMpegtsSection * section, GstElement * element);
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GstMpegtsSection *gst_event_parse_mpegts_section (GstEvent * event);
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GstMpegtsSection *gst_message_parse_mpegts_section (GstMessage *message);
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GstMpegtsSection *gst_mpegts_section_new (guint16 pid,
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guint8 * data,
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gsize data_size);
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guint8 *gst_mpegts_section_packetize (GstMpegtsSection * section, gsize * output_size);
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G_END_DECLS
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#endif /* GST_MPEGTS_SECTION_H */
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