filetype.py

#! /usr/bin/env python

# Include the required packages
import os

from dvbobjects.PSI.PAT import *
from dvbobjects.PSI.NIT import *
from dvbobjects.PSI.SDT import *
from dvbobjects.PSI.PMT import *
from dvbobjects.DVB.Descriptors import *
from dvbobjects.MPEG.Descriptors import *
from dvbobjects.MHP.AIT import *
from dvbobjects.MHP.Descriptors import *

# Variables
ftv_transport_stream_id = 1 # france television transport stream id
fr_network_id = 8442 # French DVB-T id
ftv1_service_id = 257 # france 2 service id
ftv1_pmt_pid = 256 # france 2 PMT table id
ftv1_service_name = "France 2" # france 2 channel name

ftv_service_provider_name = "France Televisions" # Service provider name

ftv1_ait_pid = 2002 # AIT table id for the france 2 service


# NIT Table
nit = network_information_section(
	network_id = fr_network_id, # DVB-T network id
        network_descriptor_loop = [
	    network_descriptor(network_name = "reseau television numerique terrestre francais",), # Network name
            ],
	transport_stream_loop = [
	    transport_stream_loop_item(
		transport_stream_id = ftv_transport_stream_id,
		original_network_id = fr_network_id, # DVB-T network id
		transport_descriptor_loop = [
		# Services description
		    service_list_descriptor(
			dvb_service_descriptor_loop = [ 
			# we define 1 service
			    service_descriptor_loop_item(  
				service_ID = ftv1_service_id, 
				service_type = 1,
			    ),
			],
		    ),
		# Channel description
		    logical_channel_descriptor(
			    lcn_service_descriptor_loop = [
					lcn_service_descriptor_loop_item(
						service_ID = ftv1_service_id, # Service - channel association
						visible_service_flag = 1, # visible channel
						logical_channel_number = 2, # Channel number
					),
			    ],
		    ),
		],		
	     ),
	  ],
        version_number = 1,
        section_number = 0,
        last_section_number = 0,
        )


pat = program_association_section(
	table_id = 0x00, # PAT table id
	section_syntax_indicator = 1,
	transport_stream_id = ftv_transport_stream_id, # on which transport stream the PAT is applied
        program_loop = [
	# Associate service with the PAT
    	    program_loop_item(
	        program_number = ftv1_service_id,
    		PID = ftv1_pmt_pid, # association of a PMT table for a service
    	    ),
        ],
        version_number = 1, 
        section_number = 0,
        last_section_number = 0,
        )


sdt = service_description_section(
	transport_stream_id = ftv_transport_stream_id, # association of the SDT table with the transport stream
	original_network_id = fr_network_id, # association of the SDT table with the network
        service_loop = [

	# Association of 3 services with the SDR table
	    service_loop_item(
		service_ID = ftv1_service_id, # id of the service
		EIT_schedule_flag = 0, 
		EIT_present_following_flag = 0, 
		running_status = 4, 
		free_CA_mode = 0,
		service_descriptor_loop = [
		    service_descriptor(
			service_type = 1, 
			service_provider_name = ftv_service_provider_name, # service provider
			service_name = ftv1_service_name, # name of the channel associated to the service
		    ),    
		],
	    ),
        ],
        version_number = 1, 
        section_number = 0,
        last_section_number = 0,
        )


pmt1 = program_map_section(
	table_id = 0x02, # id identifying a PMT table
	program_number = ftv1_service_id, # id of the service associated to the PMT table
	PCR_PID = 257, # id of the first item of the feed (video audio or ait)
	program_info_descriptor_loop = [],
	# definition of the different feeds in the service
	stream_loop = [
		# Video
		stream_loop_item(
			stream_type = 0x1b, # type of the feed (H264)
			elementary_PID = 257, # id of the video feed (updated)
			element_info_descriptor_loop = []
		),
		# Audio
		stream_loop_item(
			stream_type = 0x0f, # type of the feed
			elementary_PID = 258, # id of the audio feed (modified)
			element_info_descriptor_loop = []
		),
		
		# AIT
		stream_loop_item(
			stream_type = 0x5, # AIT stream type
			elementary_PID = ftv1_ait_pid, # id of the AIT table
			element_info_descriptor_loop = [ 
			    application_signalling_descriptor(
				application_type = 0x0010, # hbbtv type
				AIT_version = 1,  # ait version used
				),
			]	
		)
	],
        version_number = 1, 
        section_number = 0,
        last_section_number = 0,
        )    

#
# Application Informaton Table (ETSI TS 101 812 10.4.6)
#

ait1 = application_information_section(
	table_id = 0x74, # id identifying an AIT table
        application_type = 0x0010, # hbbtv application type
        common_descriptor_loop = [],
        application_loop = [
		application_loop_item(
		organisation_id = 0x00000058,  # Organisation_id for France televisions
	        application_id = 1011, # unique application id
	        application_control_code = 0x01, # 1 is AUTOSTART, the application will start immedtiatly to load and to execute
					# 2 is PRESENT, the decoder will add this application to the user choice of application
					# 3 is DESTROY, it will signal to the application to stop executing
					# 4 is KILL, it will stop execute the application
		# Description of the application
	        application_descriptors_loop = [
			transport_ic_protocol_descriptor(
			        protocol_id = 0x0003,
				URL_base = "http://hbbtv.francetv.fr/", # base of the called url
				URL_extensions = [], # pas d'extention
			        transport_protocol_label = 0x3, # transport protocol used for launch an URL
			),
			application_descriptor(
			        application_profile = 0,
			        version_major = 1, # value of the german HbbTV apps
			        version_minor = 1, # value of the german HbbTV apps
			        version_micro = 0, # value of the german HbbTV apps
			        service_bound_flag = 0, # 1 means the application is expected to die on service change, 0 will wait after the service change to receive all the AITs and check if the same app is signalled or not
			        visibility = 3, # 3 the applications is visible to the user, 1 the application is visible only to other applications , 11 for all
			        application_priority = 1, # 1 is lowset, it is used when more than 1 applications is executing
			        transport_protocol_labels = [3], # same as transport_protocol_label in section "transport_ic_protocol_descriptor"
			),
			application_name_descriptor(application_name = "RolandGarros"), # name of the application (updated)
			# simple application location descriptor
			simple_application_location_descriptor(
				descriptor_tag = 0x15, # id identifying a "simple application location descriptor"
				initial_path = "f5/_gestionnaire_notif/v1.2-rg/index.html", # path of the called url (updated)
			),
        	]
        	),
   	],
        version_number = 1,
        section_number = 0,
        last_section_number = 0,
	)
# Transform the objects in a .sec file for to transform it into .ts

# Table NIT
out = open("./nit.sec", "wb")
out.write(nit.pack())
out.close
out = open("./nit.sec", "wb") # python  flush bug
out.close
os.system('/usr/local/bin/sec2ts 16 < ./nit.sec > ./nit.ts')

# Table PAT
out = open("./pat.sec", "wb")
out.write(pat.pack())
out.close
out = open("./pat.sec", "wb") # python   flush bug
out.close
os.system('/usr/local/bin/sec2ts 0 < ./pat.sec > ./pat.ts')

# Table SDT
out = open("./sdt.sec", "wb")
out.write(sdt.pack())
out.close
out = open("./sdt.sec", "wb") # python   flush bug
out.close
os.system('/usr/local/bin/sec2ts 17 < ./sdt.sec > ./sdt.ts')

# Table PMT
out = open("./pmt1.sec", "wb")
out.write(pmt1.pack())
out.close
out = open("./pmt1.sec", "wb") # python   flush bug
out.close
os.system('/usr/local/bin/sec2ts ' + str(ftv1_pmt_pid) + ' < ./pmt1.sec > ./pmt1.ts')

# Table AIT
out = open("./ait1.sec", "wb")
out.write(ait1.pack())
out.close
out = open("./ait1.sec", "wb") # python   flush bug
out.close
os.system('/usr/local/bin/sec2ts ' + str(ftv1_ait_pid) + ' < ./ait1.sec > ./ait1.ts')