mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-07-02 04:35:55 +00:00
168 lines
5 KiB
C
168 lines
5 KiB
C
/*
|
|
* mpegtspacketizer.h -
|
|
* Copyright (C) 2007 Alessandro Decina
|
|
*
|
|
* Authors:
|
|
* Alessandro Decina <alessandro@nnva.org>
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#ifndef GST_MPEGTS_PACKETIZER_H
|
|
#define GST_MPEGTS_PACKETIZER_H
|
|
|
|
#include <gst/gst.h>
|
|
#include <gst/base/gstadapter.h>
|
|
#include <glib.h>
|
|
|
|
#define MPEGTS_NORMAL_PACKETSIZE 188
|
|
#define MPEGTS_M2TS_PACKETSIZE 192
|
|
#define MPEGTS_DVB_ASI_PACKETSIZE 204
|
|
#define MPEGTS_ATSC_PACKETSIZE 208
|
|
|
|
#define MPEGTS_MIN_PACKETSIZE MPEGTS_NORMAL_PACKETSIZE
|
|
#define MPEGTS_MAX_PACKETSIZE MPEGTS_ATSC_PACKETSIZE
|
|
|
|
#define MPEGTS_AFC_PCR_FLAG 0x10
|
|
#define MPEGTS_AFC_OPCR_FLAG 0x08
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
#define GST_TYPE_MPEGTS_PACKETIZER \
|
|
(mpegts_packetizer_get_type())
|
|
#define GST_MPEGTS_PACKETIZER(obj) \
|
|
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_MPEGTS_PACKETIZER,MpegTSPacketizer2))
|
|
#define GST_MPEGTS_PACKETIZER_CLASS(klass) \
|
|
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_MPEGTS_PACKETIZER,MpegTSPacketizer2Class))
|
|
#define GST_IS_MPEGTS_PACKETIZER(obj) \
|
|
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_MPEGTS_PACKETIZER))
|
|
#define GST_IS_MPEGTS_PACKETIZER_CLASS(klass) \
|
|
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_MPEGTS_PACKETIZER))
|
|
|
|
typedef struct _MpegTSPacketizer2 MpegTSPacketizer2;
|
|
typedef struct _MpegTSPacketizer2Class MpegTSPacketizer2Class;
|
|
|
|
typedef struct
|
|
{
|
|
guint continuity_counter;
|
|
GstAdapter *section_adapter;
|
|
guint8 section_table_id;
|
|
guint section_length;
|
|
GSList *subtables;
|
|
guint64 offset;
|
|
} MpegTSPacketizerStream;
|
|
|
|
struct _MpegTSPacketizer2 {
|
|
GObject object;
|
|
|
|
GstAdapter *adapter;
|
|
/* streams hashed by pid */
|
|
MpegTSPacketizerStream **streams;
|
|
gboolean disposed;
|
|
gboolean know_packet_size;
|
|
guint16 packet_size;
|
|
GstCaps *caps;
|
|
|
|
/* current offset of the tip of the adapter */
|
|
guint64 offset;
|
|
gboolean empty;
|
|
};
|
|
|
|
struct _MpegTSPacketizer2Class {
|
|
GObjectClass object_class;
|
|
};
|
|
|
|
typedef struct
|
|
{
|
|
GstBuffer *buffer;
|
|
gint16 pid;
|
|
guint8 payload_unit_start_indicator;
|
|
guint8 adaptation_field_control;
|
|
guint8 continuity_counter;
|
|
guint8 *payload;
|
|
|
|
guint8 *data_start;
|
|
guint8 *data_end;
|
|
guint8 *data;
|
|
|
|
guint8 afc_flags;
|
|
guint64 pcr;
|
|
guint64 opcr;
|
|
guint64 offset;
|
|
} MpegTSPacketizerPacket;
|
|
|
|
typedef struct
|
|
{
|
|
gboolean complete;
|
|
GstBuffer *buffer;
|
|
gint16 pid;
|
|
guint8 table_id;
|
|
guint16 subtable_extension;
|
|
guint section_length;
|
|
guint8 version_number;
|
|
guint8 current_next_indicator;
|
|
guint32 crc;
|
|
} MpegTSPacketizerSection;
|
|
|
|
typedef struct
|
|
{
|
|
guint8 table_id;
|
|
/* the spec says sub_table_extension is the fourth and fifth byte of a
|
|
* section when the section_syntax_indicator is set to a value of "1". If
|
|
* section_syntax_indicator is 0, sub_table_extension will be set to 0 */
|
|
guint16 subtable_extension;
|
|
guint8 version_number;
|
|
guint32 crc;
|
|
} MpegTSPacketizerStreamSubtable;
|
|
|
|
typedef enum {
|
|
PACKET_BAD = FALSE,
|
|
PACKET_OK = TRUE,
|
|
PACKET_NEED_MORE
|
|
} MpegTSPacketizerPacketReturn;
|
|
|
|
GType mpegts_packetizer_get_type(void);
|
|
|
|
MpegTSPacketizer2 *mpegts_packetizer_new (void);
|
|
void mpegts_packetizer_clear (MpegTSPacketizer2 *packetizer);
|
|
void mpegts_packetizer_push (MpegTSPacketizer2 *packetizer, GstBuffer *buffer);
|
|
gboolean mpegts_packetizer_has_packets (MpegTSPacketizer2 *packetizer);
|
|
MpegTSPacketizerPacketReturn mpegts_packetizer_next_packet (MpegTSPacketizer2 *packetizer,
|
|
MpegTSPacketizerPacket *packet);
|
|
void mpegts_packetizer_clear_packet (MpegTSPacketizer2 *packetizer,
|
|
MpegTSPacketizerPacket *packet);
|
|
void mpegts_packetizer_remove_stream(MpegTSPacketizer2 *packetizer,
|
|
gint16 pid);
|
|
|
|
gboolean mpegts_packetizer_push_section (MpegTSPacketizer2 *packetzer,
|
|
MpegTSPacketizerPacket *packet, MpegTSPacketizerSection *section);
|
|
GstStructure *mpegts_packetizer_parse_pat (MpegTSPacketizer2 *packetizer,
|
|
MpegTSPacketizerSection *section);
|
|
GstStructure *mpegts_packetizer_parse_pmt (MpegTSPacketizer2 *packetizer,
|
|
MpegTSPacketizerSection *section);
|
|
GstStructure *mpegts_packetizer_parse_nit (MpegTSPacketizer2 *packetizer,
|
|
MpegTSPacketizerSection *section);
|
|
GstStructure *mpegts_packetizer_parse_sdt (MpegTSPacketizer2 *packetizer,
|
|
MpegTSPacketizerSection *section);
|
|
GstStructure *mpegts_packetizer_parse_eit (MpegTSPacketizer2 *packetizer,
|
|
MpegTSPacketizerSection *section);
|
|
GstStructure *mpegts_packetizer_parse_tdt (MpegTSPacketizer2 *packetizer,
|
|
MpegTSPacketizerSection *section);
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* GST_MPEGTS_PACKETIZER_H */
|