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mpegts: split dvb descriptors/enums into a separate file

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We will do the same once we have ATSC/ISDB/... descriptor parsing
This commit is contained in:
Edward Hervey 2013-07-03 18:52:18 +02:00
parent 6a611e5d3d
commit 51d8fa5860
7 changed files with 637 additions and 549 deletions
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6
gst-libs/gst/mpegts/Makefile.am
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@ -3,6 +3,7 @@ lib_LTLIBRARIES = libgstmpegts-@GST_API_VERSION@.la
libgstmpegts_@GST_API_VERSION@_la_SOURCES = \
gstmpegtssection.c \
gstmpegtsdescriptor.c \
gst-dvb-descriptor.c \
gst-dvb-section.c
libgstmpegts_@GST_API_VERSION@includedir = \
@ -15,6 +16,7 @@ libgstmpegts_@GST_API_VERSION@include_HEADERS = \
gst-atsc-section.h \
gst-dvb-section.h \
gstmpegtsdescriptor.h \
gst-dvb-descriptor.h \
mpegts.h
@ -35,7 +37,9 @@ libgstmpegts_@GST_API_VERSION@_la_LDFLAGS = \
glib_enum_headers=gstmpegtssection.h \
gstmpegtsdescriptor.h \
gst-atsc-section.h \
gst-dvb-section.h
gst-dvb-section.h \
gst-dvb-descriptor.h
glib_enum_define=GST_MPEGTS
glib_gen_prefix=gst_mpegts
glib_gen_basename=gstmpegts

283
gst-libs/gst/mpegts/gst-dvb-descriptor.c Normal file
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@ -0,0 +1,283 @@
/*
* gstmpegtsdescriptor.c -
* Copyright (C) 2013 Edward Hervey
*
* Authors:
* Edward Hervey <edward@collabora.com>
*
* 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.
*/
#include <stdlib.h>
#include <string.h>
#include "mpegts.h"
#include "gstmpegts-private.h"
/*
* TODO
*
* * Add common validation code for data presence and minimum/maximum expected
* size.
* * Add parsing methods for the following descriptors that were previously
* handled in mpegtsbase:
* * GST_MTS_DESC_DVB_DATA_BROADCAST_ID
* * GST_MTS_DESC_DVB_DATA_BROADCAST
* * GST_MTS_DESC_DVB_CAROUSEL_IDENTIFIER
* * GST_MTS_DESC_DVB_STREAM_IDENTIFIER
* * GST_MTS_DESC_DVB_EXTENDED_EVENT
* * GST_MTS_DESC_DVB_COMPONENT
* * GST_MTS_DESC_DVB_TERRESTRIAL_DELIVERY_SYSTEM
* * GST_MTS_DESC_DVB_FREQUENCY_LIST
*/
/* GST_MTS_DESC_DVB_NETWORK_NAME (0x40) */
/**
* gst_mpegts_descriptor_parse_dvb_network_name:
* @descriptor: a %GST_MTS_DESC_DVB_NETWORK_NAME #GstMpegTsDescriptor
* @name: (out) (transfer full): the extracted name
*
* Parses out the dvb network name from the @descriptor:
*
* Returns: %TRUE if the parsing happened correctly, else %FALSE.
*/
gboolean
gst_mpegts_descriptor_parse_dvb_network_name (const GstMpegTsDescriptor *
descriptor, gchar ** name)
{
g_return_val_if_fail (descriptor != NULL
&& descriptor->descriptor_data != NULL, FALSE);
g_return_val_if_fail (descriptor->descriptor_tag == 0x40, FALSE);
*name = get_encoding_and_convert ((gchar *) descriptor->descriptor_data + 2,
descriptor->descriptor_data[1]);
return TRUE;
}
/* GST_MTS_DESC_DVB_SATELLITE_DELIVERY_SYSTEM (0x43) */
/**
* gst_mpegts_descriptor_parse_satellite_delivery_system:
* @descriptor: a %GST_MTS_DESC_DVB_SATELLITE_DELIVERY_SYSTEM #GstMpegTsDescriptor
* @res: (out) (transfer none): the #GstMpegTsSatelliteDeliverySystemDescriptor to fill
*
* Extracts the satellite delivery system information from @descriptor.
*
* Returns: %TRUE if parsing succeeded, else %FALSE.
*/
gboolean
gst_mpegts_descriptor_parse_satellite_delivery_system (const GstMpegTsDescriptor
* descriptor, GstMpegTsSatelliteDeliverySystemDescriptor * res)
{
guint8 *data;
guint8 tmp;
g_return_val_if_fail (descriptor != NULL
&& descriptor->descriptor_data != NULL, FALSE);
g_return_val_if_fail (res != NULL, FALSE);
g_return_val_if_fail (descriptor->descriptor_tag == 0x43, FALSE);
data = (guint8 *) descriptor->descriptor_data + 2;
#define BCD_UN(a) ((a) & 0x0f)
#define BCD_DEC(a) (((a) >> 4) & 0x0f)
#define BCD(a) (BCD_UN(a) + 10 * BCD_DEC(a))
#define BCD_16(a) (BCD(a[1]) + 100 * BCD(a[0]))
#define BCD_28(a) (BCD_DEC(a[3]) + 10 * BCD(a[2]) + 1000 * BCD(a[1]) + 100000 * BCD(a[0]))
#define BCD_32(a) (BCD(a[3]) + 100 * BCD(a[2]) + 10000 * BCD(a[1]) + 1000000 * BCD(a[0]))
/* BCD coded frequency in GHz (decimal point occurs after the 3rd character)
* So direct BCD gives us units of (GHz / 100 000) = 10 kHz*/
res->frequency = BCD_32 (data) * 10;
data += 4;
/* BCD codec position in degrees (float pointer after the 3rd character) */
res->orbital_position = (BCD_16 (data)) / 10.0;
data += 2;
tmp = *data;
res->west_east = (tmp & 0x80) == 0x80;
res->polarization = (tmp >> 7) & 0x03;
res->modulation_system = (tmp & 0x04) == 0x04;
if (res->modulation_system)
res->roll_off = (tmp >> 3 & 0x03);
else
res->roll_off = GST_MPEGTS_ROLLOFF_AUTO;
switch (tmp & 0x03) {
case 0x00:
res->modulation_type = GST_MPEGTS_MODULATION_QAM_AUTO;
break;
case 0x01:
res->modulation_type = GST_MPEGTS_MODULATION_QPSK;
break;
case 0x10:
res->modulation_type = GST_MPEGTS_MODULATION_PSK_8;
break;
case 0x11:
res->modulation_type = GST_MPEGTS_MODULATION_QAM_16;
break;
default:
break;
}
res->modulation_type = tmp & 0x03;
data += 1;
/* symbol_rate is in Msymbols/ (decimal point occurs after 3rd character) */
/* So direct BCD gives us units of (Msymbol / 10 000) = 100 sym/s */
res->symbol_rate = BCD_28 (data) * 100;
data += 3;
/* fec_inner */
res->fec_inner = *data >> 4;
return TRUE;
}
/* GST_MTS_DESC_DVB_CABLE_DELIVERY_SYSTEM (0x44) */
/**
* gst_mpegts_descriptor_parse_cable_delivery_system:
* @descriptor: a %GST_MTS_DESC_DVB_CABLE_DELIVERY_SYSTEM #GstMpegTsDescriptor
* @res: (out) (transfer none): the #GstMpegTsCableDeliverySystemDescriptor to fill
*
* Extracts the cable delivery system information from @descriptor.
*
* Returns: %TRUE if parsing succeeded, else %FALSE.
*/
gboolean
gst_mpegts_descriptor_parse_cable_delivery_system (const GstMpegTsDescriptor *
descriptor, GstMpegTsCableDeliverySystemDescriptor * res)
{
guint8 *data;
g_return_val_if_fail (descriptor != NULL
&& descriptor->descriptor_data != NULL, FALSE);
g_return_val_if_fail (res != NULL, FALSE);
g_return_val_if_fail (descriptor->descriptor_tag == 0x44, FALSE);
data = (guint8 *) descriptor->descriptor_data + 2;
/* BCD in MHz, decimal place after the fourth character */
res->frequency = BCD_32 (data) * 100;
data += 5;
/* fec_out (4bits) */
res->outer_fec = *data++ & 0x0f;
switch (*data) {
case 0x00:
res->modulation = GST_MPEGTS_MODULATION_NONE;
break;
case 0x01:
res->modulation = GST_MPEGTS_MODULATION_QAM_16;
break;
case 0x02:
res->modulation = GST_MPEGTS_MODULATION_QAM_32;
break;
case 0x03:
res->modulation = GST_MPEGTS_MODULATION_QAM_64;
break;
case 0x04:
res->modulation = GST_MPEGTS_MODULATION_QAM_128;
break;
case 0x05:
res->modulation = GST_MPEGTS_MODULATION_QAM_256;
break;
default:
GST_WARNING ("Unsupported cable modulation type: 0x%02x", *data);
res->modulation = GST_MPEGTS_MODULATION_NONE;
break;
}
data += 1;
/* symbol_rate is in Msymbols/ (decimal point occurs after 3rd character) */
/* So direct BCD gives us units of (Msymbol / 10 000) = 100 sym/s */
res->symbol_rate = BCD_28 (data) * 100;
data += 3;
/* fec_inner */
res->fec_inner = *data & 0x0f;
return TRUE;
}
/* GST_MTS_DESC_DVB_SERVICE (0x48) */
/**
* gst_mpegts_descriptor_parse_dvb_service:
* @descriptor: a %GST_MTS_DESC_DVB_SERVICE #GstMpegTsDescriptor
* @service_type: (out) (allow-none): the service type
* @service_name: (out) (transfer full) (allow-none): the service name
* @provider_name: (out) (transfer full) (allow-none): the provider name
*
* Extracts the dvb service information from @descriptor.
*
* Returns: %TRUE if parsing succeeded, else %FALSE.
*/
gboolean
gst_mpegts_descriptor_parse_dvb_service (const GstMpegTsDescriptor *
descriptor, GstMpegTsDVBServiceType * service_type, gchar ** service_name,
gchar ** provider_name)
{
guint8 *data;
g_return_val_if_fail (descriptor != NULL
&& descriptor->descriptor_data != NULL, FALSE);
g_return_val_if_fail (descriptor->descriptor_tag == 0x48, FALSE);
data = (guint8 *) descriptor->descriptor_data + 2;
if (service_type)
*service_type = *data;
data += 1;
if (provider_name)
*provider_name = get_encoding_and_convert ((const gchar *) data + 1, *data);
data += *data + 1;
if (service_name)
*service_name = get_encoding_and_convert ((const gchar *) data + 1, *data);
return TRUE;
}
/* GST_MTS_DESC_DVB_SHORT_EVENT (0x4D) */
/**
* gst_mpegts_descriptor_parse_dvb_short_event:
* @descriptor: a %GST_MTS_DESC_DVB_SHORT_EVENT #GstMpegTsDescriptor
* @language_code: (out) (transfer full) (allow-none): the language code
* @event_name: (out) (transfer full) (allow-none): the event name
* @text: (out) (transfer full) (allow-none): the event text
*
* Extracts the DVB short event information from @descriptor.
*
* Returns: %TRUE if parsing succeeded, else %FALSE.
*/
gboolean
gst_mpegts_descriptor_parse_dvb_short_event (const GstMpegTsDescriptor *
descriptor, gchar ** language_code, gchar ** event_name, gchar ** text)
{
guint8 *data;
g_return_val_if_fail (descriptor != NULL
&& descriptor->descriptor_data != NULL, FALSE);
g_return_val_if_fail (descriptor->descriptor_tag == 0x4D, FALSE);
data = (guint8 *) descriptor->descriptor_data + 2;
if (language_code) {
*language_code = g_malloc0 (4);
memcpy (*language_code, data, 3);
}
data += 3;
if (event_name)
*event_name = get_encoding_and_convert ((const gchar *) data + 1, *data);
data += *data + 1;
if (text)
*text = get_encoding_and_convert ((const gchar *) data + 1, *data);
return TRUE;
}

346
gst-libs/gst/mpegts/gst-dvb-descriptor.h Normal file
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@ -0,0 +1,346 @@
/*
* gstmpegtsdescriptor.h -
* Copyright (C) 2013 Edward Hervey
*
* Authors:
* Edward Hervey <edward@collabora.com>
*
* 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.
*
* Some parts of this code come from the Fluendo MPEG Demuxer plugin.
*
* The Initial Developer of the Original Code is Fluendo, S.L.
* Portions created by Fluendo, S.L. are Copyright (C) 2005
* Fluendo, S.L. All Rights Reserved.
*
* Contributor(s): Wim Taymans <wim@fluendo.com>
*/
#ifndef GST_DVB_DESCRIPTOR_H
#define GST_DVB_DESCRIPTOR_H
#include <gst/gst.h>
typedef enum {
/* 64-127 DVB tags ETSI EN 300 468
* (Specification for Service Information (SI) in DVB systems)
*/
GST_MTS_DESC_DVB_NETWORK_NAME = 0x40,
GST_MTS_DESC_DVB_SERVICE_LIST = 0x41,
GST_MTS_DESC_DVB_STUFFING = 0x42,
GST_MTS_DESC_DVB_SATELLITE_DELIVERY_SYSTEM = 0x43,
GST_MTS_DESC_DVB_CABLE_DELIVERY_SYSTEM = 0x44,
GST_MTS_DESC_DVB_VBI_DATA = 0x45,
GST_MTS_DESC_DVB_VBI_TELETEXT = 0x46,
GST_MTS_DESC_DVB_BOUQUET_NAME = 0x47,
GST_MTS_DESC_DVB_SERVICE = 0x48,
GST_MTS_DESC_DVB_COUNTRY_AVAILABILITY = 0x49,
GST_MTS_DESC_DVB_LINKAGE = 0x4A,
GST_MTS_DESC_DVB_NVOD_REFERENCE = 0x4B,
GST_MTS_DESC_DVB_TIME_SHIFTED_SERVICE = 0x4C,
GST_MTS_DESC_DVB_SHORT_EVENT = 0x4D,
GST_MTS_DESC_DVB_EXTENDED_EVENT = 0x4E,
GST_MTS_DESC_DVB_TIME_SHIFTED_EVENT = 0x4F,
GST_MTS_DESC_DVB_COMPONENT = 0x50,
GST_MTS_DESC_DVB_MOSAIC = 0x51,
GST_MTS_DESC_DVB_STREAM_IDENTIFIER = 0x52,
GST_MTS_DESC_DVB_CA_IDENTIFIER = 0x53,
GST_MTS_DESC_DVB_CONTENT = 0x54,
GST_MTS_DESC_DVB_PARENTAL_RATING = 0x55,
GST_MTS_DESC_DVB_TELETEXT = 0x56,
GST_MTS_DESC_DVB_TELEPHONE = 0x57,
GST_MTS_DESC_DVB_LOCAL_TIME_OFFSET = 0x58,
GST_MTS_DESC_DVB_SUBTITLING = 0x59,
GST_MTS_DESC_DVB_TERRESTRIAL_DELIVERY_SYSTEM = 0x5A,
GST_MTS_DESC_DVB_MULTILINGUAL_NETWORK_NAME = 0x5B,
GST_MTS_DESC_DVB_MULTILINGUAL_BOUQUET_NAME = 0x5C,
GST_MTS_DESC_DVB_MULTILINGUAL_SERVICE_NAME = 0x5D,
GST_MTS_DESC_DVB_MULTILINGUAL_COMPONENT = 0x5E,
GST_MTS_DESC_DVB_PRIVATE_DATA_SPECIFIER = 0x5F,
GST_MTS_DESC_DVB_SERVICE_MOVE = 0x60,
GST_MTS_DESC_DVB_SHORT_SMOOTHING_BUFFER = 0x61,
GST_MTS_DESC_DVB_FREQUENCY_LIST = 0x62,
GST_MTS_DESC_DVB_PARTIAL_TRANSPORT_STREAM = 0x63,
GST_MTS_DESC_DVB_DATA_BROADCAST = 0x64,
GST_MTS_DESC_DVB_SCRAMBLING = 0x65,
GST_MTS_DESC_DVB_DATA_BROADCAST_ID = 0x66,
GST_MTS_DESC_DVB_TRANSPORT_STREAM = 0x67,
GST_MTS_DESC_DVB_DSNG = 0x68,
GST_MTS_DESC_DVB_PDC = 0x69,
GST_MTS_DESC_DVB_AC3 = 0x6A,
GST_MTS_DESC_DVB_ANCILLARY_DATA = 0x6B,
GST_MTS_DESC_DVB_CELL_LIST = 0x6C,
GST_MTS_DESC_DVB_CELL_FREQUENCY_LINK = 0x6D,
GST_MTS_DESC_DVB_ANNOUNCEMENT_SUPPORT = 0x6E,
GST_MTS_DESC_DVB_APPLICATION_SIGNALLING = 0x6F,
GST_MTS_DESC_DVB_ADAPTATION_FIELD_DATA = 0x70,
GST_MTS_DESC_DVB_SERVICE_IDENTIFIER = 0x71,
GST_MTS_DESC_DVB_SERVICE_AVAILABILITY = 0x72,
GST_MTS_DESC_DVB_DEFAULT_AUTHORITY = 0x73,
GST_MTS_DESC_DVB_RELATED_CONTENT = 0x74,
GST_MTS_DESC_DVB_TVA_ID = 0x75,
GST_MTS_DESC_DVB_CONTENT_IDENTIFIER = 0x76,
GST_MTS_DESC_DVB_TIMESLICE_FEC_IDENTIFIER = 0x77,
GST_MTS_DESC_DVB_ECM_REPETITION_RATE = 0x78,
GST_MTS_DESC_DVB_S2_SATELLITE_DELIVERY_SYSTEM = 0x79,
GST_MTS_DESC_DVB_ENHANCED_AC3 = 0x7A,
GST_MTS_DESC_DVB_DTS = 0x7B,
GST_MTS_DESC_DVB_AAC = 0x7C,
GST_MTS_DESC_DVB_XAIT_LOCATION = 0x7D,
GST_MTS_DESC_DVB_FTA_CONTENT_MANAGEMENT = 0x7E,
GST_MTS_DESC_DVB_EXTENSION = 0x7F,
} GstMpegTsDVBDescriptorType;
/* GST_MTS_DESC_DVB_CAROUSEL_IDENTIFIER (0x13) */
/* FIXME : Implement */
/* GST_MTS_DESC_DVB_NETWORK_NAME (0x40) */
gboolean gst_mpegts_descriptor_parse_dvb_network_name (const GstMpegTsDescriptor *descriptor,
gchar **name);
/* GST_MTS_DESC_DVB_SATELLITE_DELIVERY_SYSTEM (0x43) */
typedef struct _GstMpegTsSatelliteDeliverySystemDescriptor GstMpegTsSatelliteDeliverySystemDescriptor;
typedef enum {
GST_MPEGTS_MODULATION_QPSK = 0,
GST_MPEGTS_MODULATION_QAM_16,
GST_MPEGTS_MODULATION_QAM_32,
GST_MPEGTS_MODULATION_QAM_64,
GST_MPEGTS_MODULATION_QAM_128,
GST_MPEGTS_MODULATION_QAM_256,
GST_MPEGTS_MODULATION_QAM_AUTO,
GST_MPEGTS_MODULATION_VSB_8,
GST_MPEGTS_MODULATION_VSB_16,
GST_MPEGTS_MODULATION_PSK_8,
GST_MPEGTS_MODULATION_APSK_16,
GST_MPEGTS_MODULATION_APSK_32,
GST_MPEGTS_MODULATION_DQPSK,
GST_MPEGTS_MODULATION_QAM_4_NR_,
GST_MPEGTS_MODULATION_NONE
} GstMpegTsModulationType;
typedef enum {
GST_MPEGTS_FEC_NONE = 0,
GST_MPEGTS_FEC_1_2,
GST_MPEGTS_FEC_2_3,
GST_MPEGTS_FEC_3_4,
GST_MPEGTS_FEC_4_5,
GST_MPEGTS_FEC_5_6,
GST_MPEGTS_FEC_6_7,
GST_MPEGTS_FEC_7_8,
GST_MPEGTS_FEC_8_9,
GST_MPEGTS_FEC_AUTO,
GST_MPEGTS_FEC_3_5,
GST_MPEGTS_FEC_9_10,
GST_MPEGTS_FEC_2_5
} GstMpegTsDVBCodeRate;
typedef enum {
GST_MPEGTS_ROLLOFF_35 = 0,
GST_MPEGTS_ROLLOFF_20,
GST_MPEGTS_ROLLOFF_25,
GST_MPEGTS_ROLLOFF_RESERVED,
GST_MPEGTS_ROLLOFF_AUTO
} GstMpegTsSatelliteRolloff;
typedef enum {
GST_MPEGTS_POLARIZATION_LINEAR_HORIZONTAL = 0,
GST_MPEGTS_POLARIZATION_LINEAR_VERTICAL,
GST_MPEGTS_POLARIZATION_CIRCULAR_LEFT,
GST_MPEGTS_POLARIZATION_CIRCULAR_RIGHT
} GstMpegTsSatellitePolarizationType;
/**
* GstMpegTsSatelliteDeliverySystemDescriptor:
* @frequency: the frequency in kHz (kiloHertz)
* @orbital_position: the orbital position in degrees
* @west_east: If %TRUE, the satellite is in the eastern part of the orbit,
* else in the western part.
* @polarization: The polarization of the transmitted signal
* @roll_off: Roll-off factor used in DVB-S2
* @modulation_system: modulation system, %TRUE if DVB-S2, else DVB-S
* @modulation_type: Modulation scheme used
* @symbol_rate: Symbol rate (in symbols per second)
* @fec_inner: inner FEC scheme used
*
* Satellite Delivery System Descriptor (EN 300 468 v.1.13.1)
*/
struct _GstMpegTsSatelliteDeliverySystemDescriptor
{
guint32 frequency;
gfloat orbital_position;
gboolean west_east;
GstMpegTsSatellitePolarizationType polarization;
GstMpegTsSatelliteRolloff roll_off;
gboolean modulation_system;
GstMpegTsModulationType modulation_type;
guint32 symbol_rate;
GstMpegTsDVBCodeRate fec_inner;
};
gboolean gst_mpegts_descriptor_parse_satellite_delivery_system (const GstMpegTsDescriptor *descriptor,
GstMpegTsSatelliteDeliverySystemDescriptor *res);
/* FIXME : Implement */
/* GST_MTS_DESC_DVB_CABLE_DELIVERY_SYSTEM (0x44) */
typedef enum {
GST_MPEGTS_CABLE_OUTER_FEC_UNDEFINED = 0,
GST_MPEGTS_CABLE_OUTER_FEC_NONE,
GST_MPEGTS_CABLE_OUTER_FEC_RS_204_188,
} GstMpegTsCableOuterFECScheme;
typedef struct _GstMpegTsCableDeliverySystemDescriptor GstMpegTsCableDeliverySystemDescriptor;
/**
* GstMpegTsCableDeliverySystemDescriptor:
* @frequency: the frequency in Hz (Hertz)
* @outer_fec: the outer FEC scheme used
* @modulation: Modulation scheme used
* @symbol_rate: Symbol rate (in symbols per second)
* @fec_inner: inner FEC scheme used
*
* Cable Delivery System Descriptor (EN 300 468 v.1.13.1)
*/
struct _GstMpegTsCableDeliverySystemDescriptor
{
guint32 frequency;
GstMpegTsCableOuterFECScheme outer_fec;
GstMpegTsModulationType modulation;
guint32 symbol_rate;
GstMpegTsDVBCodeRate fec_inner;
};
gboolean gst_mpegts_descriptor_parse_cable_delivery_system (const GstMpegTsDescriptor *descriptor,
GstMpegTsCableDeliverySystemDescriptor *res);
/* GST_MTS_DESC_DVB_SERVICE (0x48) */
/**
* GstMpegTsDVBServiceType:
*
* The type of service of a channel.
*
* As specified in Table 87 of ETSI EN 300 468 v1.13.1
*/
typedef enum {
GST_DVB_SERVICE_RESERVED_00 = 0x00,
GST_DVB_SERVICE_DIGITAL_TELEVISION,
GST_DVB_SERVICE_DIGITAL_RADIO_SOUND,
GST_DVB_SERVICE_TELETEXT,
GST_DVB_SERVICE_NVOD_REFERENCE,
GST_DVB_SERVICE_NVOD_TIME_SHIFTED,
GST_DVB_SERVICE_MOSAIC,
GST_DVB_SERVICE_FM_RADIO,
GST_DVB_SERVICE_DVB_SRM,
GST_DVB_SERVICE_RESERVED_09,
GST_DVB_SERVICE_ADVANCED_CODEC_DIGITAL_RADIO_SOUND,
GST_DVB_SERVICE_ADVANCED_CODEC_MOSAIC,
GST_DVB_SERVICE_DATA_BROADCAST,
GST_DVB_SERVICE_RESERVED_0D_COMMON_INTERFACE,
GST_DVB_SERVICE_RCS_MAP,
GST_DVB_SERVICE_RCS_FLS,
GST_DVB_SERVICE_DVB_MHP,
GST_DVB_SERVICE_MPEG2_HD_DIGITAL_TELEVISION,
/* 0x12 - 015 Reserved for future use */
GST_DVB_SERVICE_ADVANCED_CODEC_SD_DIGITAL_TELEVISION = 0x16,
GST_DVB_SERVICE_ADVANCED_CODEC_SD_NVOD_TIME_SHIFTED,
GST_DVB_SERVICE_ADVANCED_CODEC_SD_NVOD_REFERENCE,
GST_DVB_SERVICE_ADVANCED_CODEC_HD_DIGITAL_TELEVISION,
GST_DVB_SERVICE_ADVANCED_CODEC_HD_NVOD_TIME_SHIFTED,
GST_DVB_SERVICE_ADVANCED_CODEC_HD_NVOD_REFERENCE,
GST_DVB_SERVICE_ADVANCED_CODEC_STEREO_HD_DIGITAL_TELEVISION,
GST_DVB_SERVICE_ADVANCED_CODEC_STEREO_HD_NVOD_TIME_SHIFTED,
GST_DVB_SERVICE_ADVANCED_CODEC_STEREO_HD_NVOD_REFERENCE,
/* 0x1F - 0x7f Reserved for future use */
/* 0x80 - 0xfe user defined */
/* 0xff Reserved for future use */
GST_DVB_SERVICE_RESERVED_FF
} GstMpegTsDVBServiceType;
/* FIXME : enum type for service_type ? */
gboolean gst_mpegts_descriptor_parse_dvb_service (const GstMpegTsDescriptor *descriptor,
GstMpegTsDVBServiceType *service_type,
gchar **service_name,
gchar **provider_name);
/* GST_MTS_DESC_DVB_SHORT_EVENT (0x4D) */
gboolean gst_mpegts_descriptor_parse_dvb_short_event (const GstMpegTsDescriptor *descriptor,
gchar **language_code,
gchar **event_name,
gchar **text);
/* GST_MTS_DESC_DVB_EXTENDED_EVENT (0x4E) */
typedef struct _GstMpegTsExtendedEventDescriptor GstMpegTsExtendedEventDescriptor;
typedef struct _GstMpegTsExtendedEventItem GstMpegTsExtendedEventItem;
/* FIXME : Maybe make a separate method for getting a specific item entry ? */
struct _GstMpegTsExtendedEventItem
{
gchar *item_description;
gchar *item;
};
struct _GstMpegTsExtendedEventDescriptor
{
guint8 descriptor_number;
guint8 last_descriptor_number;
gchar language_code[3];
guint8 nb_items;
GstMpegTsExtendedEventItem items[128];
gchar *text;
};
gboolean gst_mpegts_descriptor_parse_dvb_extended_event (const GstMpegTsDescriptor *descriptor,
GstMpegTsExtendedEventDescriptor *res);
/* GST_MTS_DESC_DVB_COMPONENT (0x50) */
typedef struct _GstMpegTsComponentDescriptor GstMpegTsComponentDescriptor;
struct _GstMpegTsComponentDescriptor
{
guint8 stream_content;
guint8 component_type;
guint8 component_tag;
/* FIXME : Make it a separate (allocated, null-terminated) return value */
gchar language_code[3];
gchar *text;
};
gboolean gst_mpegts_descriptor_parse_dvb_component (const GstMpegTsDescriptor *descriptor,
GstMpegTsComponentDescriptor *res);
/* GST_MTS_DESC_DVB_STREAM_IDENTIFIER (0x52) */
gboolean gst_mpegts_descriptor_parse_dvb_stream_identifier (const GstMpegTsDescriptor *descriptor,
guint8 *component_tag);
/* GST_MTS_DESC_DVB_TERRESTRIAL_DELIVERY_SYSTEM (0x5A) */
/* FIXME : Implement */
/* GST_MTS_DESC_DVB_FREQUENCY_LIST (0x62) */
/* FIXME : Implement */
/* GST_MTS_DESC_DVB_DATA_BROADCAST (0x64) */
/* FIXME: Implement */
/* GST_MTS_DESC_DVB_DATA_BROADCAST_ID (0x66) */
/* FIXME : Implement */
/* GST_MTS_DESC_DVB_AC3 (0x6a) */
/* FIXME : Implement */
#endif /* GST_MPEGTS_DESCRIPTOR_H */

1
gst-libs/gst/mpegts/gstmpegts-private.h
View file

@ -29,5 +29,6 @@ GST_DEBUG_CATEGORY_EXTERN (gst_mpegts_debug);
G_GNUC_INTERNAL void __initialize_descriptors (void);
G_GNUC_INTERNAL guint32 _calc_crc32 (const guint8 *data, guint datalen);
G_GNUC_INTERNAL gchar *get_encoding_and_convert (const gchar *text, guint length);
#endif /* _GST_MPEGTS_PRIVATE_H_ */

240
gst-libs/gst/mpegts/gstmpegtsdescriptor.c
View file

@ -354,7 +354,7 @@ convert_to_utf8 (const gchar * text, gint length, guint start,
return new_text;
}
static gchar *
gchar *
get_encoding_and_convert (const gchar * text, guint length)
{
GError *error = NULL;
@ -618,244 +618,6 @@ gst_mpegts_descriptor_parse_iso_639_language (const GstMpegTsDescriptor *
}
/* GST_MTS_DESC_DVB_NETWORK_NAME (0x40) */
/**
* gst_mpegts_descriptor_parse_dvb_network_name:
* @descriptor: a %GST_MTS_DESC_DVB_NETWORK_NAME #GstMpegTsDescriptor
* @name: (out) (transfer full): the extracted name
*
* Parses out the dvb network name from the @descriptor:
*
* Returns: %TRUE if the parsing happened correctly, else %FALSE.
*/
gboolean
gst_mpegts_descriptor_parse_dvb_network_name (const GstMpegTsDescriptor *
descriptor, gchar ** name)
{
g_return_val_if_fail (descriptor != NULL
&& descriptor->descriptor_data != NULL, FALSE);
g_return_val_if_fail (descriptor->descriptor_tag == 0x40, FALSE);
*name = get_encoding_and_convert ((gchar *) descriptor->descriptor_data + 2,
descriptor->descriptor_data[1]);
return TRUE;
}
/* GST_MTS_DESC_DVB_SATELLITE_DELIVERY_SYSTEM (0x43) */
/**
* gst_mpegts_descriptor_parse_satellite_delivery_system:
* @descriptor: a %GST_MTS_DESC_DVB_SATELLITE_DELIVERY_SYSTEM #GstMpegTsDescriptor
* @res: (out) (transfer none): the #GstMpegTsSatelliteDeliverySystemDescriptor to fill
*
* Extracts the satellite delivery system information from @descriptor.
*
* Returns: %TRUE if parsing succeeded, else %FALSE.
*/
gboolean
gst_mpegts_descriptor_parse_satellite_delivery_system (const GstMpegTsDescriptor
* descriptor, GstMpegTsSatelliteDeliverySystemDescriptor * res)
{
guint8 *data;
guint8 tmp;
g_return_val_if_fail (descriptor != NULL
&& descriptor->descriptor_data != NULL, FALSE);
g_return_val_if_fail (res != NULL, FALSE);
g_return_val_if_fail (descriptor->descriptor_tag == 0x43, FALSE);
data = (guint8 *) descriptor->descriptor_data + 2;
#define BCD_UN(a) ((a) & 0x0f)
#define BCD_DEC(a) (((a) >> 4) & 0x0f)
#define BCD(a) (BCD_UN(a) + 10 * BCD_DEC(a))
#define BCD_16(a) (BCD(a[1]) + 100 * BCD(a[0]))
#define BCD_28(a) (BCD_DEC(a[3]) + 10 * BCD(a[2]) + 1000 * BCD(a[1]) + 100000 * BCD(a[0]))
#define BCD_32(a) (BCD(a[3]) + 100 * BCD(a[2]) + 10000 * BCD(a[1]) + 1000000 * BCD(a[0]))
/* BCD coded frequency in GHz (decimal point occurs after the 3rd character)
* So direct BCD gives us units of (GHz / 100 000) = 10 kHz*/
res->frequency = BCD_32 (data) * 10;
data += 4;
/* BCD codec position in degrees (float pointer after the 3rd character) */
res->orbital_position = (BCD_16 (data)) / 10.0;
data += 2;
tmp = *data;
res->west_east = (tmp & 0x80) == 0x80;
res->polarization = (tmp >> 7) & 0x03;
res->modulation_system = (tmp & 0x04) == 0x04;
if (res->modulation_system)
res->roll_off = (tmp >> 3 & 0x03);
else
res->roll_off = GST_MPEGTS_ROLLOFF_AUTO;
switch (tmp & 0x03) {
case 0x00:
res->modulation_type = GST_MPEGTS_MODULATION_QAM_AUTO;
break;
case 0x01:
res->modulation_type = GST_MPEGTS_MODULATION_QPSK;
break;
case 0x10:
res->modulation_type = GST_MPEGTS_MODULATION_PSK_8;
break;
case 0x11:
res->modulation_type = GST_MPEGTS_MODULATION_QAM_16;
break;
default:
break;
}
res->modulation_type = tmp & 0x03;
data += 1;
/* symbol_rate is in Msymbols/ (decimal point occurs after 3rd character) */
/* So direct BCD gives us units of (Msymbol / 10 000) = 100 sym/s */
res->symbol_rate = BCD_28 (data) * 100;
data += 3;
/* fec_inner */
res->fec_inner = *data >> 4;
return TRUE;
}
/* GST_MTS_DESC_DVB_CABLE_DELIVERY_SYSTEM (0x44) */
/**
* gst_mpegts_descriptor_parse_cable_delivery_system:
* @descriptor: a %GST_MTS_DESC_DVB_CABLE_DELIVERY_SYSTEM #GstMpegTsDescriptor
* @res: (out) (transfer none): the #GstMpegTsCableDeliverySystemDescriptor to fill
*
* Extracts the cable delivery system information from @descriptor.
*
* Returns: %TRUE if parsing succeeded, else %FALSE.
*/
gboolean
gst_mpegts_descriptor_parse_cable_delivery_system (const GstMpegTsDescriptor *
descriptor, GstMpegTsCableDeliverySystemDescriptor * res)
{
guint8 *data;
g_return_val_if_fail (descriptor != NULL
&& descriptor->descriptor_data != NULL, FALSE);
g_return_val_if_fail (res != NULL, FALSE);
g_return_val_if_fail (descriptor->descriptor_tag == 0x44, FALSE);
data = (guint8 *) descriptor->descriptor_data + 2;
/* BCD in MHz, decimal place after the fourth character */
res->frequency = BCD_32 (data) * 100;
data += 5;
/* fec_out (4bits) */
res->outer_fec = *data++ & 0x0f;
switch (*data) {
case 0x00:
res->modulation = GST_MPEGTS_MODULATION_NONE;
break;
case 0x01:
res->modulation = GST_MPEGTS_MODULATION_QAM_16;
break;
case 0x02:
res->modulation = GST_MPEGTS_MODULATION_QAM_32;
break;
case 0x03:
res->modulation = GST_MPEGTS_MODULATION_QAM_64;
break;
case 0x04:
res->modulation = GST_MPEGTS_MODULATION_QAM_128;
break;
case 0x05:
res->modulation = GST_MPEGTS_MODULATION_QAM_256;
break;
default:
GST_WARNING ("Unsupported cable modulation type: 0x%02x", *data);
res->modulation = GST_MPEGTS_MODULATION_NONE;
break;
}
data += 1;
/* symbol_rate is in Msymbols/ (decimal point occurs after 3rd character) */
/* So direct BCD gives us units of (Msymbol / 10 000) = 100 sym/s */
res->symbol_rate = BCD_28 (data) * 100;
data += 3;
/* fec_inner */
res->fec_inner = *data & 0x0f;
return TRUE;
}
/* GST_MTS_DESC_DVB_SERVICE (0x48) */
/**
* gst_mpegts_descriptor_parse_dvb_service:
* @descriptor: a %GST_MTS_DESC_DVB_SERVICE #GstMpegTsDescriptor
* @service_type: (out) (allow-none): the service type
* @service_name: (out) (transfer full) (allow-none): the service name
* @provider_name: (out) (transfer full) (allow-none): the provider name
*
* Extracts the dvb service information from @descriptor.
*
* Returns: %TRUE if parsing succeeded, else %FALSE.
*/
gboolean
gst_mpegts_descriptor_parse_dvb_service (const GstMpegTsDescriptor *
descriptor, GstMpegTsDVBServiceType * service_type, gchar ** service_name,
gchar ** provider_name)
{
guint8 *data;
g_return_val_if_fail (descriptor != NULL
&& descriptor->descriptor_data != NULL, FALSE);
g_return_val_if_fail (descriptor->descriptor_tag == 0x48, FALSE);
data = (guint8 *) descriptor->descriptor_data + 2;
if (service_type)
*service_type = *data;
data += 1;
if (provider_name)
*provider_name = get_encoding_and_convert ((const gchar *) data + 1, *data);
data += *data + 1;
if (service_name)
*service_name = get_encoding_and_convert ((const gchar *) data + 1, *data);
return TRUE;
}
/* GST_MTS_DESC_DVB_SHORT_EVENT (0x4D) */
/**
* gst_mpegts_descriptor_parse_dvb_short_event:
* @descriptor: a %GST_MTS_DESC_DVB_SHORT_EVENT #GstMpegTsDescriptor
* @language_code: (out) (transfer full) (allow-none): the language code
* @event_name: (out) (transfer full) (allow-none): the event name
* @text: (out) (transfer full) (allow-none): the event text
*
* Extracts the DVB short event information from @descriptor.
*
* Returns: %TRUE if parsing succeeded, else %FALSE.
*/
gboolean
gst_mpegts_descriptor_parse_dvb_short_event (const GstMpegTsDescriptor *
descriptor, gchar ** language_code, gchar ** event_name, gchar ** text)
{
guint8 *data;
g_return_val_if_fail (descriptor != NULL
&& descriptor->descriptor_data != NULL, FALSE);
g_return_val_if_fail (descriptor->descriptor_tag == 0x4D, FALSE);
data = (guint8 *) descriptor->descriptor_data + 2;
if (language_code) {
*language_code = g_malloc0 (4);
memcpy (*language_code, data, 3);
}
data += 3;
if (event_name)
*event_name = get_encoding_and_convert ((const gchar *) data + 1, *data);
data += *data + 1;
if (text)
*text = get_encoding_and_convert ((const gchar *) data + 1, *data);
return TRUE;
}
/**
* gst_mpegts_descriptor_parse_logical_channel:
* @descriptor: a %GST_MTS_DESC_DTG_LOGICAL_CHANNEL #GstMpegTsDescriptor

309
gst-libs/gst/mpegts/gstmpegtsdescriptor.h
View file

@ -132,76 +132,6 @@ typedef enum {
/* 55-63 ITU-T Rec. H.222.0 | ISO/IEC 13818-1 Reserved */
} GstMpegTsDescriptorType;
typedef enum {
/* 64-127 DVB tags ETSI EN 300 468
* (Specification for Service Information (SI) in DVB systems)
*/
GST_MTS_DESC_DVB_NETWORK_NAME = 0x40,
GST_MTS_DESC_DVB_SERVICE_LIST = 0x41,
GST_MTS_DESC_DVB_STUFFING = 0x42,
GST_MTS_DESC_DVB_SATELLITE_DELIVERY_SYSTEM = 0x43,
GST_MTS_DESC_DVB_CABLE_DELIVERY_SYSTEM = 0x44,
GST_MTS_DESC_DVB_VBI_DATA = 0x45,
GST_MTS_DESC_DVB_VBI_TELETEXT = 0x46,
GST_MTS_DESC_DVB_BOUQUET_NAME = 0x47,
GST_MTS_DESC_DVB_SERVICE = 0x48,
GST_MTS_DESC_DVB_COUNTRY_AVAILABILITY = 0x49,
GST_MTS_DESC_DVB_LINKAGE = 0x4A,
GST_MTS_DESC_DVB_NVOD_REFERENCE = 0x4B,
GST_MTS_DESC_DVB_TIME_SHIFTED_SERVICE = 0x4C,
GST_MTS_DESC_DVB_SHORT_EVENT = 0x4D,
GST_MTS_DESC_DVB_EXTENDED_EVENT = 0x4E,
GST_MTS_DESC_DVB_TIME_SHIFTED_EVENT = 0x4F,
GST_MTS_DESC_DVB_COMPONENT = 0x50,
GST_MTS_DESC_DVB_MOSAIC = 0x51,
GST_MTS_DESC_DVB_STREAM_IDENTIFIER = 0x52,
GST_MTS_DESC_DVB_CA_IDENTIFIER = 0x53,
GST_MTS_DESC_DVB_CONTENT = 0x54,
GST_MTS_DESC_DVB_PARENTAL_RATING = 0x55,
GST_MTS_DESC_DVB_TELETEXT = 0x56,
GST_MTS_DESC_DVB_TELEPHONE = 0x57,
GST_MTS_DESC_DVB_LOCAL_TIME_OFFSET = 0x58,
GST_MTS_DESC_DVB_SUBTITLING = 0x59,
GST_MTS_DESC_DVB_TERRESTRIAL_DELIVERY_SYSTEM = 0x5A,
GST_MTS_DESC_DVB_MULTILINGUAL_NETWORK_NAME = 0x5B,
GST_MTS_DESC_DVB_MULTILINGUAL_BOUQUET_NAME = 0x5C,
GST_MTS_DESC_DVB_MULTILINGUAL_SERVICE_NAME = 0x5D,
GST_MTS_DESC_DVB_MULTILINGUAL_COMPONENT = 0x5E,
GST_MTS_DESC_DVB_PRIVATE_DATA_SPECIFIER = 0x5F,
GST_MTS_DESC_DVB_SERVICE_MOVE = 0x60,
GST_MTS_DESC_DVB_SHORT_SMOOTHING_BUFFER = 0x61,
GST_MTS_DESC_DVB_FREQUENCY_LIST = 0x62,
GST_MTS_DESC_DVB_PARTIAL_TRANSPORT_STREAM = 0x63,
GST_MTS_DESC_DVB_DATA_BROADCAST = 0x64,
GST_MTS_DESC_DVB_SCRAMBLING = 0x65,
GST_MTS_DESC_DVB_DATA_BROADCAST_ID = 0x66,
GST_MTS_DESC_DVB_TRANSPORT_STREAM = 0x67,
GST_MTS_DESC_DVB_DSNG = 0x68,
GST_MTS_DESC_DVB_PDC = 0x69,
GST_MTS_DESC_DVB_AC3 = 0x6A,
GST_MTS_DESC_DVB_ANCILLARY_DATA = 0x6B,
GST_MTS_DESC_DVB_CELL_LIST = 0x6C,
GST_MTS_DESC_DVB_CELL_FREQUENCY_LINK = 0x6D,
GST_MTS_DESC_DVB_ANNOUNCEMENT_SUPPORT = 0x6E,
GST_MTS_DESC_DVB_APPLICATION_SIGNALLING = 0x6F,
GST_MTS_DESC_DVB_ADAPTATION_FIELD_DATA = 0x70,
GST_MTS_DESC_DVB_SERVICE_IDENTIFIER = 0x71,
GST_MTS_DESC_DVB_SERVICE_AVAILABILITY = 0x72,
GST_MTS_DESC_DVB_DEFAULT_AUTHORITY = 0x73,
GST_MTS_DESC_DVB_RELATED_CONTENT = 0x74,
GST_MTS_DESC_DVB_TVA_ID = 0x75,
GST_MTS_DESC_DVB_CONTENT_IDENTIFIER = 0x76,
GST_MTS_DESC_DVB_TIMESLICE_FEC_IDENTIFIER = 0x77,
GST_MTS_DESC_DVB_ECM_REPETITION_RATE = 0x78,
GST_MTS_DESC_DVB_S2_SATELLITE_DELIVERY_SYSTEM = 0x79,
GST_MTS_DESC_DVB_ENHANCED_AC3 = 0x7A,
GST_MTS_DESC_DVB_DTS = 0x7B,
GST_MTS_DESC_DVB_AAC = 0x7C,
GST_MTS_DESC_DVB_XAIT_LOCATION = 0x7D,
GST_MTS_DESC_DVB_FTA_CONTENT_MANAGEMENT = 0x7E,
GST_MTS_DESC_DVB_EXTENSION = 0x7F,
} GstMpegTsDVBDescriptorType;
typedef enum {
/* 0x80 - 0xFE are user defined */
GST_MTS_DESC_AC3_AUDIO_STREAM = 0x81,
@ -332,245 +262,6 @@ gboolean gst_mpegts_descriptor_parse_iso_639_language (const GstMpegTsDescriptor
GstMpegTsISO639LanguageDescriptor *res);
/* GST_MTS_DESC_DVB_CAROUSEL_IDENTIFIER (0x13) */
/* FIXME : Implement */
/* GST_MTS_DESC_DVB_NETWORK_NAME (0x40) */
gboolean gst_mpegts_descriptor_parse_dvb_network_name (const GstMpegTsDescriptor *descriptor,
gchar **name);
/* GST_MTS_DESC_DVB_SATELLITE_DELIVERY_SYSTEM (0x43) */
typedef struct _GstMpegTsSatelliteDeliverySystemDescriptor GstMpegTsSatelliteDeliverySystemDescriptor;
typedef enum {
GST_MPEGTS_MODULATION_QPSK = 0,
GST_MPEGTS_MODULATION_QAM_16,
GST_MPEGTS_MODULATION_QAM_32,
GST_MPEGTS_MODULATION_QAM_64,
GST_MPEGTS_MODULATION_QAM_128,
GST_MPEGTS_MODULATION_QAM_256,
GST_MPEGTS_MODULATION_QAM_AUTO,
GST_MPEGTS_MODULATION_VSB_8,
GST_MPEGTS_MODULATION_VSB_16,
GST_MPEGTS_MODULATION_PSK_8,
GST_MPEGTS_MODULATION_APSK_16,
GST_MPEGTS_MODULATION_APSK_32,
GST_MPEGTS_MODULATION_DQPSK,
GST_MPEGTS_MODULATION_QAM_4_NR_,
GST_MPEGTS_MODULATION_NONE
} GstMpegTsModulationType;
typedef enum {
GST_MPEGTS_FEC_NONE = 0,
GST_MPEGTS_FEC_1_2,
GST_MPEGTS_FEC_2_3,
GST_MPEGTS_FEC_3_4,
GST_MPEGTS_FEC_4_5,
GST_MPEGTS_FEC_5_6,
GST_MPEGTS_FEC_6_7,
GST_MPEGTS_FEC_7_8,
GST_MPEGTS_FEC_8_9,
GST_MPEGTS_FEC_AUTO,
GST_MPEGTS_FEC_3_5,
GST_MPEGTS_FEC_9_10,
GST_MPEGTS_FEC_2_5
} GstMpegTsDVBCodeRate;
typedef enum {
GST_MPEGTS_ROLLOFF_35 = 0,
GST_MPEGTS_ROLLOFF_20,
GST_MPEGTS_ROLLOFF_25,
GST_MPEGTS_ROLLOFF_RESERVED,
GST_MPEGTS_ROLLOFF_AUTO
} GstMpegTsSatelliteRolloff;
typedef enum {
GST_MPEGTS_POLARIZATION_LINEAR_HORIZONTAL = 0,
GST_MPEGTS_POLARIZATION_LINEAR_VERTICAL,
GST_MPEGTS_POLARIZATION_CIRCULAR_LEFT,
GST_MPEGTS_POLARIZATION_CIRCULAR_RIGHT
} GstMpegTsSatellitePolarizationType;
/**
* GstMpegTsSatelliteDeliverySystemDescriptor:
* @frequency: the frequency in kHz (kiloHertz)
* @orbital_position: the orbital position in degrees
* @west_east: If %TRUE, the satellite is in the eastern part of the orbit,
* else in the western part.
* @polarization: The polarization of the transmitted signal
* @roll_off: Roll-off factor used in DVB-S2
* @modulation_system: modulation system, %TRUE if DVB-S2, else DVB-S
* @modulation_type: Modulation scheme used
* @symbol_rate: Symbol rate (in symbols per second)
* @fec_inner: inner FEC scheme used
*
* Satellite Delivery System Descriptor (EN 300 468 v.1.13.1)
*/
struct _GstMpegTsSatelliteDeliverySystemDescriptor
{
guint32 frequency;
gfloat orbital_position;
gboolean west_east;
GstMpegTsSatellitePolarizationType polarization;
GstMpegTsSatelliteRolloff roll_off;
gboolean modulation_system;
GstMpegTsModulationType modulation_type;
guint32 symbol_rate;
GstMpegTsDVBCodeRate fec_inner;
};
gboolean gst_mpegts_descriptor_parse_satellite_delivery_system (const GstMpegTsDescriptor *descriptor,
GstMpegTsSatelliteDeliverySystemDescriptor *res);
/* FIXME : Implement */
/* GST_MTS_DESC_DVB_CABLE_DELIVERY_SYSTEM (0x44) */
typedef enum {
GST_MPEGTS_CABLE_OUTER_FEC_UNDEFINED = 0,
GST_MPEGTS_CABLE_OUTER_FEC_NONE,
GST_MPEGTS_CABLE_OUTER_FEC_RS_204_188,
} GstMpegTsCableOuterFECScheme;
typedef struct _GstMpegTsCableDeliverySystemDescriptor GstMpegTsCableDeliverySystemDescriptor;
/**
* GstMpegTsCableDeliverySystemDescriptor:
* @frequency: the frequency in Hz (Hertz)
* @outer_fec: the outer FEC scheme used
* @modulation: Modulation scheme used
* @symbol_rate: Symbol rate (in symbols per second)
* @fec_inner: inner FEC scheme used
*
* Cable Delivery System Descriptor (EN 300 468 v.1.13.1)
*/
struct _GstMpegTsCableDeliverySystemDescriptor
{
guint32 frequency;
GstMpegTsCableOuterFECScheme outer_fec;
GstMpegTsModulationType modulation;
guint32 symbol_rate;
GstMpegTsDVBCodeRate fec_inner;
};
gboolean gst_mpegts_descriptor_parse_cable_delivery_system (const GstMpegTsDescriptor *descriptor,
GstMpegTsCableDeliverySystemDescriptor *res);
/* GST_MTS_DESC_DVB_SERVICE (0x48) */
/**
* GstMpegTsDVBServiceType:
*
* The type of service of a channel.
*
* As specified in Table 87 of ETSI EN 300 468 v1.13.1
*/
typedef enum {
GST_DVB_SERVICE_RESERVED_00 = 0x00,
GST_DVB_SERVICE_DIGITAL_TELEVISION,
GST_DVB_SERVICE_DIGITAL_RADIO_SOUND,
GST_DVB_SERVICE_TELETEXT,
GST_DVB_SERVICE_NVOD_REFERENCE,
GST_DVB_SERVICE_NVOD_TIME_SHIFTED,
GST_DVB_SERVICE_MOSAIC,
GST_DVB_SERVICE_FM_RADIO,
GST_DVB_SERVICE_DVB_SRM,
GST_DVB_SERVICE_RESERVED_09,
GST_DVB_SERVICE_ADVANCED_CODEC_DIGITAL_RADIO_SOUND,
GST_DVB_SERVICE_ADVANCED_CODEC_MOSAIC,
GST_DVB_SERVICE_DATA_BROADCAST,
GST_DVB_SERVICE_RESERVED_0D_COMMON_INTERFACE,
GST_DVB_SERVICE_RCS_MAP,
GST_DVB_SERVICE_RCS_FLS,
GST_DVB_SERVICE_DVB_MHP,
GST_DVB_SERVICE_MPEG2_HD_DIGITAL_TELEVISION,
/* 0x12 - 015 Reserved for future use */
GST_DVB_SERVICE_ADVANCED_CODEC_SD_DIGITAL_TELEVISION = 0x16,
GST_DVB_SERVICE_ADVANCED_CODEC_SD_NVOD_TIME_SHIFTED,
GST_DVB_SERVICE_ADVANCED_CODEC_SD_NVOD_REFERENCE,
GST_DVB_SERVICE_ADVANCED_CODEC_HD_DIGITAL_TELEVISION,
GST_DVB_SERVICE_ADVANCED_CODEC_HD_NVOD_TIME_SHIFTED,
GST_DVB_SERVICE_ADVANCED_CODEC_HD_NVOD_REFERENCE,
GST_DVB_SERVICE_ADVANCED_CODEC_STEREO_HD_DIGITAL_TELEVISION,
GST_DVB_SERVICE_ADVANCED_CODEC_STEREO_HD_NVOD_TIME_SHIFTED,
GST_DVB_SERVICE_ADVANCED_CODEC_STEREO_HD_NVOD_REFERENCE,
/* 0x1F - 0x7f Reserved for future use */
/* 0x80 - 0xfe user defined */
/* 0xff Reserved for future use */
GST_DVB_SERVICE_RESERVED_FF
} GstMpegTsDVBServiceType;
/* FIXME : enum type for service_type ? */
gboolean gst_mpegts_descriptor_parse_dvb_service (const GstMpegTsDescriptor *descriptor,
GstMpegTsDVBServiceType *service_type,
gchar **service_name,
gchar **provider_name);
/* GST_MTS_DESC_DVB_SHORT_EVENT (0x4D) */
gboolean gst_mpegts_descriptor_parse_dvb_short_event (const GstMpegTsDescriptor *descriptor,
gchar **language_code,
gchar **event_name,
gchar **text);
/* GST_MTS_DESC_DVB_EXTENDED_EVENT (0x4E) */
typedef struct _GstMpegTsExtendedEventDescriptor GstMpegTsExtendedEventDescriptor;
typedef struct _GstMpegTsExtendedEventItem GstMpegTsExtendedEventItem;
/* FIXME : Maybe make a separate method for getting a specific item entry ? */
struct _GstMpegTsExtendedEventItem
{
gchar *item_description;
gchar *item;
};
struct _GstMpegTsExtendedEventDescriptor
{
guint8 descriptor_number;
guint8 last_descriptor_number;
gchar language_code[3];
guint8 nb_items;
GstMpegTsExtendedEventItem items[128];
gchar *text;
};
gboolean gst_mpegts_descriptor_parse_dvb_extended_event (const GstMpegTsDescriptor *descriptor,
GstMpegTsExtendedEventDescriptor *res);
/* GST_MTS_DESC_DVB_COMPONENT (0x50) */
typedef struct _GstMpegTsComponentDescriptor GstMpegTsComponentDescriptor;
struct _GstMpegTsComponentDescriptor
{
guint8 stream_content;
guint8 component_type;
guint8 component_tag;
/* FIXME : Make it a separate (allocated, null-terminated) return value */
gchar language_code[3];
gchar *text;
};
gboolean gst_mpegts_descriptor_parse_dvb_component (const GstMpegTsDescriptor *descriptor,
GstMpegTsComponentDescriptor *res);
/* GST_MTS_DESC_DVB_STREAM_IDENTIFIER (0x52) */
gboolean gst_mpegts_descriptor_parse_dvb_stream_identifier (const GstMpegTsDescriptor *descriptor,
guint8 *component_tag);
/* GST_MTS_DESC_DVB_TERRESTRIAL_DELIVERY_SYSTEM (0x5A) */
/* FIXME : Implement */
/* GST_MTS_DESC_DVB_FREQUENCY_LIST (0x62) */
/* FIXME : Implement */
/* GST_MTS_DESC_DVB_DATA_BROADCAST (0x64) */
/* FIXME: Implement */
/* GST_MTS_DESC_DVB_DATA_BROADCAST_ID (0x66) */
/* FIXME : Implement */
/* GST_MTS_DESC_DVB_AC3 (0x6a) */
/* FIXME : Implement */
/* GST_MTS_DESC_DTG_LOGICAL_CHANNEL (0x83) */
typedef struct _GstMpegTsLogicalChannelDescriptor GstMpegTsLogicalChannelDescriptor;

1
gst-libs/gst/mpegts/mpegts.h
View file

@ -25,6 +25,7 @@
#define _GST_MPEGTS_H_
#include <gst/mpegts/gstmpegtsdescriptor.h>
#include <gst/mpegts/gst-dvb-descriptor.h>
#include <gst/mpegts/gstmpegtssection.h>
#include <gst/mpegts/gst-atsc-section.h>
#include <gst/mpegts/gst-dvb-section.h>