JP2003338854A - Transport stream processing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To insert a target TS packet even without a TS packet to be discarded, and further to arbitrarily set a position of a TS packet to be inserted. <P>SOLUTION: When there is no TS packet of a replacing target in an input transport stream S100, a PID comparator 102 outputs a new TS packet in place of a discarded TS packet and further, when there is no TS packet discarded by the PID comparator 102, an arbitrary TS packet in the input transport stream S100 is replaced with the new TS packet and outputted. Thus, even without the TS packet to be discarded, the target TS packet is inserted and further, the position of the TS packet to be inserted is arbitrarily set. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a transport stream processing device.

[0002]

2. Description of the Related Art Hereinafter, FIGS. 38, 39, 40 and 41
A conventional transport stream processing device will be described with reference to FIG.

FIG. 38 is a block diagram showing the structure of a conventional transport stream processing apparatus, and FIG. 39 is a data structure diagram of a conventional transport stream. FIG. 40 is a diagram for explaining a case where there is no TS packet to replace in the conventional transport stream, and FIG.
FIG. 6 is a diagram for explaining a case where DIT is replaced in a conventional transport stream.

In FIG. 38, 100 is a transport stream processing device, 101 is a TS input device, and 102 is P.
ID comparator, 103 is a PID comparison data memory, 104
Is a TS output device, and 106 is a replacement TS packet memory.

The TS input device 101 receives the reception transport stream S100 and outputs the input transport stream S101 to the PID comparator 102. PI
The D comparison data memory 103 stores the packet identifier (hereinafter referred to as PID) value and P included in the transport stream.
The PID comparison data S102 in the ID comparison data memory is compared.

In the PID comparator 102, PID comparison data S10 obtained from the PID comparison data memory 103.
2 and the PID values of the input transport stream S101 are compared, and if they match, the partial transport stream S103 is output to the TS output device 104. Further, it is possible to output all the packets included in the input transport stream 101 without performing comparison.

In FIG. 39, T001 indicates the received transport stream S100, T002 indicates the partial transport stream S103, and T003 indicates the output transport stream S107. The reception transport stream S100 includes service # 1 and service # 1, respectively.
Video / audio TS packet VI corresponding to service # 2
D0, AUD0, VID1, AUD1, a program association table (hereinafter referred to as PAT) PAT0 including each service information, and a program map table (hereinafter referred to as PMT) PMT0 are multiplexed. In T002, when the video / audio data related to the service # 1 is extracted, the TS packet P30
1, P401 are extracted and output.

The TS output device 104 is a PID comparator 103.
Replacement TS for the TS packet of the partial transport stream S103 in which the TS packet was discarded in
A TS packet containing PSI / SI information stored in the packet memory 106 is inserted and output as an output transport stream S107.

At T003, P001, P102,
If P202 is the TS packet to be replaced, P
After the TS packet is once discarded by the ID comparator 103, T is added to the discarded TS packet portion.
S output device 104 outputs TS packets P002, P101, P
Insert 201.

However, in the case of the conventional transport stream device that discards and inserts TS packets, FIG.
As shown in 0, when there is no TS packet to be discarded,
There is a problem that the TS packet cannot be inserted and the TS including the new TS packet cannot be output to the external device.

Further, the PSI / SI information is composed of a plurality of TS packets, and when the number of TS packets to be discarded is extremely small, only some TS packets can be output, and the output TS packets are output. There is a problem that the device side that receives the port stream cannot acquire all the PSI / SI information, and it takes a long time to display the electronic program guide (EPG).

[0012] Normally, TS packets containing PSI / SI information are inserted at a fixed cycle interval, but if there is no TS packet to be discarded in the part corresponding to the cycle interval,
There is a problem that TS packets cannot be inserted.

Further, the discontinuity information table (DIT) is composed of two TS packets, and it is necessary to continuously insert the TS packets. However, as shown in FIG. If there are no two consecutive packets, DIT cannot be inserted and the transport stream cannot be stopped.

[0014]

In order to solve the above-mentioned problems, the transport stream processing apparatus of the present invention has a target T even if there is no TS packet to be discarded.
The purpose is to insert an S packet, and further the purpose is to arbitrarily set the position of the TS packet to be inserted.

It is also intended to guarantee the output of the designated TS packet and to designate the final TS packet of the output transport stream. Further, it is intended to insert target TS packets periodically at fixed time intervals, and further to set the priority of TS packets to be inserted.

Another object is to secure the average transfer rate of designated TS packets.

[0017]

In order to achieve the above object, a transport stream processing apparatus according to claim 1 of the present invention is a transport stream packet of an arbitrary service from a transport stream in which a plurality of services are multiplexed. A transport stream processing device for selecting a transport stream, an input means for receiving the transport stream, and a PID storage means for storing a plurality of PID information,
By comparing the PID information of each transport stream packet of the transport stream received by the input means with the PID information of the storage means, a transport stream packet having a matching PID value is extracted and a transport stream packet having a non-matching PID value is extracted. And a replacement packet storage unit for storing a plurality of transport stream packets, and a transport stream packet stored in the replacement packet storage unit instead of the transport stream packet discarded by the extraction unit. First control means for controlling insertion, first replacement means for replacing the transport stream packet extracted by the extraction means with the transport stream packet stored in the replacement packet storage means, and the first replacement means. And second substitution means for inserting a transport stream packet stored in said replacement packet storage means in place of the transport stream packets the extraction means by the control of the control means is destroyed,
It is characterized in that it has an output means for outputting to outside the transport stream in which the transport stream packet has been replaced by the first replacing means and the second replacing means.

A transport stream processing apparatus according to claim 2 is a transport stream processing apparatus for selecting a transport stream packet of an arbitrary service from a transport stream in which a plurality of services are multiplexed, and receiving the transport stream. Input means, and PID storage means for storing a plurality of PID information,
By comparing the PID information of each transport stream packet of the transport stream received by the input means with the PID information of the storage means, a transport stream packet having a matching PID value is extracted and a transport stream packet having a non-matching PID value is extracted. And a replacement packet storage means for storing a plurality of transport stream packets, and an arbitrary transport stream packet received by the input means into a transport stream packet stored in the replacement packet storage means. Second control means for replacing, first replacing means for replacing the transport stream packet extracted by the extracting means with the transport stream packet stored in the replacement packet storage means, and the second controlling means Third replacement means for replacing any transport stream packet received by the input means with the transport stream packet stored in the replacement packet storage means, the first replacement means and the third replacement Output means for externally outputting the transport stream in which the transport stream packet has been replaced by the means.

A transport stream processing apparatus according to claim 3 is a transport stream processing apparatus for selecting a transport stream packet of an arbitrary service from a transport stream in which a plurality of services are multiplexed, and receiving the transport stream. Input means, and PID storage means for storing a plurality of PID information,
By comparing the PID information of each transport stream packet of the transport stream received by the input means with the PID information of the storage means, a transport stream packet having a matching PID value is extracted and a transport stream packet having a non-matching PID value is extracted. And a replacement packet storage unit for storing a plurality of transport stream packets, and a transport stream packet stored in the replacement packet storage unit instead of the transport stream packet discarded by the extraction unit. First control means for controlling insertion, and second means for replacing any transport stream packet received by the input means with a transport stream packet stored in the replacement packet storage means.
And a second replacing means for inserting the transport stream packet stored in the replacing packet storage means in place of the transport stream packet discarded by the extracting means under the control of the first controlling means. Third replacing means for replacing an arbitrary transport stream packet received by the input means by the second control means with a transport stream packet stored in the replacement packet storage means, and the second replacement Means and an output means for externally outputting the transport stream in which the transport stream packet has been replaced by the third replacing means.

A transport stream processing device according to a fourth aspect is the transport stream processing device according to the first, second or third aspect, wherein the transport stored in the designated replacement packet storage means. Stop packet storage means for storing an identifier indicating a stream packet; and a third stop operation for stopping the external output of the output means after the output means externally outputs the transport stream packet indicated by the identifier stored in the stop packet storage means. And control means.

A transport stream processing apparatus according to a fifth aspect is the transport stream processing apparatus according to the first aspect, wherein the timer storage means for storing an arbitrary time and the first replacement means are the replacement packet storage means. And a timer measuring means for measuring an elapsed time after outputting the transport stream packet stored in the first storage means, and the first control means stores the elapsed time measured by the measuring means in the timer storage means. When the stored time is exceeded, the second replacement unit is controlled to output the transport stream packet stored in the replacement packet storage unit.

A transport stream processing device according to a sixth aspect is the transport stream processing device according to the second aspect, wherein the timer storage means for storing an arbitrary time and the first replacement means are the replacement packet storage means. Timer measuring means for measuring an elapsed time after outputting the transport stream packet stored in the second storage means, the second control means stores the elapsed time measured by the measuring means in the timer storage means. When the stored time is exceeded, the third replacement means is controlled to output the transport stream packet stored in the replacement packet storage means.

A transport stream processing device according to a seventh aspect is the transport stream processing device according to the third aspect, wherein the timer storage means for storing an arbitrary time and the second replacement means are the replacement packet storage means. Timer measuring means for measuring an elapsed time after outputting the transport stream packet stored in the second storage means, the second control means stores the elapsed time measured by the measuring means in the timer storage means. When the stored time is exceeded, the third replacement means is controlled to output the transport stream packet stored in the replacement packet storage means.

The transport stream processing device according to claim 8 is the transport stream processing device according to claim 5, wherein the designated priority is given to the transport stream packet stored in the replacement packet storage means. And a priority storage means for storing, wherein the first control means stores in the replacement packet storage means whose elapsed time measured by the timer measurement means exceeds the time stored in the timer storage means. When there are a plurality of transport stream packets, the priorities stored in the priority storage means are compared, and the second replacement means stores them in the replacement packet storage means in descending order of priority. The present invention is characterized by controlling so as to output a transport stream packet that is present.

A transport stream processing device according to a ninth aspect is the transport stream processing device according to the sixth or seventh aspect, which is designated for the transport stream packet stored in the replacement packet storage means. And a priority storage means for storing the priority, and the second control means has the replacement packet storage means in which the elapsed time measured by the timer measurement means exceeds the time stored in the timer storage means. When there are a plurality of transport stream packets stored in, the third replacement unit compares the priorities stored in the priority storage unit, and the third replacement unit stores the replacement packet storage unit in descending order of priority. Is controlled so as to output the transport stream packet stored in.

A transport stream processing device according to a tenth aspect of the present invention is the transport stream processing device according to the first aspect, wherein a bit rate designated for the transport stream packet stored in the replacement packet storage means is set. A bit rate storage unit for storing the bit rate; and a bit rate measurement unit for measuring the bit rate output by replacing the transport stream packet stored in the replacement packet storage unit by the first replacement unit. The first control means compares the bit rate measured by the bit rate measuring means with the bit rate stored in the bit rate storing means, and when the bit rate measured by the bit rate measuring means is small, The second replacement means stores the packet stored in the replacement packet storage means. And controls to output the Nsu transport stream packet.

The transport stream processing device according to claim 11 is the transport stream processing device according to claim 2, wherein the bit rate specified for the transport stream packet stored in the replacement packet storage means is set. A bit rate storage unit for storing the bit rate; and a bit rate measurement unit for measuring the bit rate output by replacing the transport stream packet stored in the replacement packet storage unit by the first replacement unit. The second control means compares the bit rate measured by the bit rate measuring means with the bit rate stored in the bit rate storing means, and when the bit rate measured by the bit rate measuring means is small, The third replacement means stores the packet stored in the replacement packet storage means. And controls to output the Nsu transport stream packet.

A transport stream processing device according to a twelfth aspect is the transport stream processing device according to the third aspect, wherein the bit rate designated for the transport stream packet stored in the replacement packet storage means is set. A bit rate storage unit for storing the bit rate; and a bit rate measurement unit for measuring the bit rate output by replacing the transport stream packet stored in the replacement packet storage unit by the second replacement unit. The second control means compares the bit rate measured by the bit rate measuring means with the bit rate stored in the bit rate storing means, and when the bit rate measured by the bit rate measuring means is small, The third replacement means stores the packet stored in the replacement packet storage means. And controls to output the Nsu transport stream packet.

The transport stream processing device according to claim 13 is the transport stream processing device according to claim 1 or 2, which is designated for the transport stream packet stored in the replacement packet storage means. A bit rate storage means for storing the bit rate, a bit rate measuring means for measuring the bit rate output by replacing the transport stream packet stored in the replacement packet storage means by the first replacing means, and outputting the bit rate. When the bit rate measured by the bit rate measuring means is compared with the bit rate stored in the bit rate storing means, and the bit rate measured by the bit rate measuring means is large, the first
And a fourth control unit that controls the replacement unit so as not to output the transport stream packet stored in the replacement packet storage unit.

A transport stream processing device according to a fourteenth aspect is the transport stream processing device according to the third aspect, wherein the bit rate designated for the transport stream packet stored in the replacement packet storage means is set. A bit rate storage unit for storing the bit rate; and a bit rate measurement unit for measuring the bit rate output by replacing the transport stream packet stored in the replacement packet storage unit by the second replacement unit. The first control means compares the bit rate measured by the bit rate measuring means with the bit rate stored in the bit rate storing means, and when the bit rate measured by the bit rate measuring means is small, The second replacement means stores the packet stored in the replacement packet storage means. And controls to output the Nsu transport stream packet.

As described above, even if there is no TS packet to be discarded, the target TS packet is inserted, and the position of the TS packet to be inserted can be set arbitrarily.

Further, the output of the designated TS packet can be guaranteed and the final TS packet can be designated. In addition, for the purpose of inserting target TS packets periodically at fixed time intervals, the T
The priority of S packets can be set.

Further, the average transfer rate of designated TS packets can be secured.

[0034]

BEST MODE FOR CARRYING OUT THE INVENTION (Embodiment 1) A transport stream processing apparatus according to Embodiment 1 of the present invention will be described below with reference to FIGS. 1, 2, 3, 3, 4, 5 and 6. .

FIG. 1 is a block diagram showing the configuration of a transport stream processing device according to the first embodiment of the present invention, and FIG. 2 is a flowchart of the transport stream processing device according to the first embodiment of the present invention. Also,
FIG. 3 is a data configuration diagram of a transport stream according to the first embodiment of the present invention, and FIG. 4 is a first embodiment of the present invention.
5 is a diagram showing the PID value of each TS packet of the input transport stream in FIG. 5, FIG. 5 is a diagram showing the PID value and the replacement target flag stored in the PID comparison data memory in the first embodiment of the present invention, and FIG. TSs stored in the replacement TS packet memory according to the first embodiment of the invention
It is a figure which shows a packet.

In FIG. 1, 100 is a transport stream processing device, 101 is a TS input device, and 102 is a PI.
D comparator, 103 PID comparison data memory, 104 TS output device, 105 TS replacement controller, 106 replacement T
The S packet memory 107 is a discard replacement flag.

The TS input device 100 receives the reception transport stream S100 and outputs the input transport stream S101 to the PID comparator 102. PI
The D comparison data memory 103 stores the PID value of the TS packet and the replacement target flag indicating whether to output the input TS packet or to replace the TS packet stored in the replacement TS packet memory 106 and output. .

The PID comparator 102 receives the PID value and P of each TS packet of the received transport stream S101.
Plural PIs stored in the ID comparison data memory 103
D values are sequentially compared, and if there is a matching PID value, P
It is output to the TS replacement controller 105 that the ID value comparison result S104 matches, the replacement target flag corresponding to the matching PID value is output as the replacement target flag signal S105, and the TS packet with the matching PID value is partially transported. Output as stream S103. Also,
If there is no matching PID value, the fact that they do not match is output as the PID value comparison result S104.

When the PID value comparison result S104 matches and the replacement target flag signal S105 indicates a replacement TS packet, the TS replacement controller 105 stores it in the replacement TS packet memory 106 indicated by the replacement target flag signal S105. TS output device 10 for outputting the replacement TS packet
Control 4 If the PID value comparison results S104 match and the replacement target flag signal S105 is OUT, the TS output unit 104 is controlled to output the TS packet received in the partial transport stream S103. If the PID value comparison result S104 does not match and the discard replacement flag 107 indicates the replacement TS packet, the TS output is performed so that the replacement TS packet stored in the replacement TS packet memory 106 indicated by the discard replacement flag 107 is output. The container 104.

The operation of the transport stream processing apparatus 100 of the present invention will be described below with reference to FIG. First,
The PID value of each TS packet of the input transport stream S101 is compared with the PID comparison data S102, and the PID value comparison result S output by the PID comparator 102 is output.
If 104 does not match, the process proceeds to step S202, and if they do not match, the process proceeds to step S205 (step S20).
1).

If they match, the process proceeds to step S203 if the replacement target flag signal S105 output from the PID comparator 102 indicates a replacement TS packet, and to step S204 if OUT (step S202).

In the case of indicating the replacement TS packet, the replacement TS packet indicated by the replacement target flag signal S105 is externally output from the TS packets stored in the replacement TS packet memory 106 (step S203).

In the case of OUT, the TS packet output from the PID comparator 102 is output to the outside (step S20).
4). If the PID value comparison results S104 do not match, or if the discard replacement flag 107 indicates a replacement TS packet, the process proceeds to step S206, and if OUT, the TS packet is not output (step S205).

In the case of indicating the replacement TS packet, the replacement TS packet indicated by the discard replacement flag 107 is externally output from the TS packets stored in the replacement TS packet memory 106 (step S206).

Next, referring to FIGS. 3, 4, 5, and 6,
An example of transport stream processing according to the first embodiment of the present invention will be described. FIG. 3 shows the reception transport stream S100, the partial transport stream S103 output by the PID comparator 102, and the output transport stream S107. The reception transport stream S100 corresponds to service # 1 and service # 2, respectively. Video / audio TS packets VID0, AUD0 and VID1, AUD1,
In addition, PAT0 and PMT0 including each service information are multiplexed.

FIG. 4 shows the input transport stream S
The correspondence between the data type of each TS packet 101 and the PID value is shown. Transport stream processing device 10
In 0, the PID of PAT is defined as 0x0 first, so 0x0 is set to the PID value of the PID comparison data memory 103 and the PID comparator 102 acquires PAT0. When PAT0 data is analyzed, PMT0 PID
Is 0x100, the PID value of the PID comparison data memory 103 is set to 0x100 and PI is set.
The D comparator 102 acquires PMT0. Analyzing PMT0 data, VID0, AUD0, VI of each service
The PID of the TS packet of D1 and AUD1 is known. Here, when the services of VID0 and AUD0 are externally output, the VID is set to the PID value of the PID comparison data memory 103.
0 and AUD0 PIDs 0x1000 and 0x200
By setting 0 and setting the corresponding replacement target flag to OUT, the TS packets of VID 0 and AUD 0 are externally output from the TS output device 104. Also, VID0, AUD
PMT1 including PID of 0 service only, and PMT1
The TS packet of PAT1 including the PID of the above is constructed and stored in the replacement TS packet memory 106. And PID
The PID value of the comparison data memory 103 is set to the PID of PAT0.
0x0, which is the PID of PMT0, and 0x100, which is the PID of PMT0, and TS packets PAT1, PMT1 stored in the replacement TS packet memory, are set in the corresponding replacement target flags.
The PAT0 and PMT0 containing the information of the two services of UD1 are replaced, and the PAT1 and PMT1 containing the information of only one service of the VID0 and AUD0 are output from the TS output unit 104 to the outside.

Next, the transport stream processing apparatus 100 sets the discard replacement flag 107 to O in the initial state.
UT is set, and TS packet PAT0 is set at time T0.
Is input, the TS packet PAT1 stored in the replacement TS packet memory 106 is output to the output transport stream S107. When the TS packet PMT0 is input at time T1, the replacement TS packet memory 10
When the TS packet PMT1 stored in No. 6 is output and the TS packet PMT0 is input at time T2, the replacement TS
TS packet PM stored in the packet memory 106
Output T1 to the outside. Also, TS packets VID0, A
When UD0 is input, it is externally output as it is.

At time T3, the discard replacement flag 107
When PAT1 is set to, when TS packet VID1 is input at time T4, PID value 0x of VID1
1100 outputs the TS packet PAT1 that is not set in the PID comparison data memory 103, is discarded, and is set in the discard replacement flag 107.

Here, of the discarded TS packets,
A TS packet that has not been replaced with the target TS packet is made an invalid signal by negating the strobe signal.

As described above, the TS replacement controller 105
Specifies the replacement target data in the discard replacement flag 107 so that even if there is no TS packet indicated by the replacement target flag in the input transport stream S101, the PID
If there is a TS packet discarded by the comparator 102, the TS packet stored in the replacement TS packet memory 106 can be externally output as the output transport stream S107. That is, by setting PAT1 in the discard replacement flag 107 at time T3, if there is a TS packet to be discarded at time T4, T
Output S packet PAT1 Transport stream S
Can be output to 107. (Embodiment 2) Hereinafter, a transport stream processing apparatus according to Embodiment 2 will be described with reference to FIGS.
0, FIG. 11, and FIG. 12 will be described. The description of the same items as those already described will be omitted.

FIG. 7 is a block diagram showing the configuration of the transport stream processing apparatus according to the second embodiment of the present invention, and FIG. 8 is a flowchart of the transport stream processing apparatus according to the second embodiment of the present invention. Also,
FIG. 9 is a data configuration diagram of a transport stream according to the second embodiment of the present invention, FIG. 10 is a diagram showing a PID value of each TS packet of an input transport stream according to the second embodiment of the present invention, and FIG. 11 is the present invention. Stored in the PID comparison data memory according to the second embodiment of the present invention
FIG. 12 is a diagram showing a D value and a replacement target flag, and FIG. 12 is a diagram showing a TS packet stored in the replacement TS packet memory according to the second embodiment of the present invention.

In FIG. 7, 100 is a transport stream processing device, 101 is a TS input device, and 102 is a PI.
D comparator, 103 PID comparison data memory, 104 TS output device, 105 TS replacement controller, 106 replacement T
S packet memory, 108 is a forced replacement flag.

Next, the operation of the TS replacement controller 105 of the transport stream processing apparatus of the present invention will be described with reference to the flowchart of FIG. First, forced replacement flag 1
If 08 indicates replacement target data, step S208
If it is OUT, the process proceeds to step S201 (step S207).

In the case of indicating replacement target data, the replacement TS packet indicated by the forced replacement flag 108 is externally output from the TS packets stored in the replacement TS packet memory 106 (step S208).

In the case of OUT, if the PID value comparison result S104 output from the PID comparator 102 is in agreement, the process proceeds to step S202, and if they are not in agreement, the process is terminated (step S201).

If they match, the process proceeds to step S203 if the replacement target flag S105 output from the PID comparator 102 indicates replacement target data, and proceeds to step 204 if OUT (step S202).

In the case of indicating the replacement target data, the replacement TS packet indicated by the replacement target flag S105 is externally output from the TS packets stored in the replacement TS packet memory 106 (step S203).

When the replacement target flag S105 is OUT,
The TS packet output by the PID comparator 102 is output to the outside (step S204). Next, the operation of the transport stream processing apparatus 100 of the present invention will be described with reference to FIGS.
A specific example of TS packet processing will be described with reference to FIGS.

First, the transport stream processing apparatus 100 sets the forced replacement flag 108 to O in the initial state.
Is set to UT, and at times T0, T1 and T2,
When the TS packets PAT0, PMT0, PMT0 are input, the TS packets PAT1, PMT1-1, PMT1-2 stored in the replacement TS packet memory 106 are input.
Is output.

By setting DIT1 in the forced replacement flag 108 at time T3, TS at time T4 is set.
When packets AUD0 and VID0 are input, AUD
0, VID0 is replaced to replace TS packet memory 106
The data of DIT1-1 and DIT1-2 stored in is output.

As described above, the TS replacement controller 10
5 designates the TS packet to be replaced in the compulsory replacement flag 108, so that even if there is no TS packet indicated by the replacement target flag or the discarded TS packet in the input transport stream S101, the replacement TS packet can be generated at any timing. The TS packet stored in the memory 106 can be output to the output transport stream S107.

That is, by setting DIT1 in the forced replacement flag 108 at time T3, the TS packet DIT1 can be externally output to the output transport stream S107 at an arbitrary timing. Also, 2
It is possible to successively output the DIT composed of individual TS packets to the output transport stream S107. (Third Embodiment) A transport stream processing apparatus according to the third embodiment of the present invention will be described below with reference to FIGS. 13 and 14.

FIG. 13 is a block diagram showing the configuration of the transport stream processing device according to the third embodiment of the present invention, and FIG. 14 is a flowchart of the transport stream processing device according to the third embodiment of the present invention.

In FIG. 13, 100 is a transport stream processing device, 101 is a TS input device, and 102 is P.
ID comparator, 103 is a PID comparison data memory, 104
Is a TS output device, 105 is a TS replacement controller, 106 is a replacement TS packet memory, 107 is a discard replacement flag, and 108
Is a forced replacement flag.

Next, the operation of the TS replacement controller 105 of the transport stream processing apparatus of the present invention will be described with reference to the flowchart of FIG. First, if the forced replacement flag 108 indicates replacement target data, step S20.
8. If OUT, go to step S201 (step S207).

If the replacement target data is indicated, the replacement TS packet indicated by the forced replacement flag 108 is output from the TS packets stored in the replacement TS packet memory 106 (step S208).

In the case of OUT, if the PID value comparison result S104 output by the PID comparator 102 is in agreement, the process proceeds to step S204, and if they are not in agreement, the process proceeds to step S205 (step S201).

If they match, the TS output device 104 is controlled so that the TS packet output from the PID comparator 102 is output to the outside (step S204). If they do not match, the process proceeds to step S206 if the discard replacement flag 107 indicates replacement target data, and if OUT, the process ends (step S205).

When the replacement target data is indicated, the replacement TS packet indicated by the discard replacement flag 107 is externally output from the TS packets stored in the replacement TS packet memory 106 (step S206).

As described above, the TS replacement controller 10
By designating the TS packet to be replaced in the forced replacement flag 108, 5 replaces the T packet at an arbitrary timing even if there is no TS packet discarded in the PID comparison period 102.
The replacement TS packet stored in the S packet memory 106 can be externally output to the output transport stream S107. (Fourth Embodiment) A transport stream processing apparatus according to the fourth embodiment will be described below with reference to FIGS.
7, FIG. 18, FIG. 19, FIG. 20, and FIG. The description of the same items as those already described will be omitted.

FIG. 15 is a block diagram showing the configuration of the transport stream processing device according to the fourth embodiment of the present invention, and FIG. 16 is a flowchart of the transport stream processing device according to the fourth embodiment of the present invention. FIG. 17 is a data configuration diagram of a transport stream according to the fourth embodiment of the present invention, and FIG. 18 is each T of an input transport stream according to the fourth embodiment of the present invention.
FIG. 19 is a diagram showing the PID value of an S packet, FIG. 19 is a diagram showing the PID value and the replacement target flag stored in the PID comparison data memory in the fourth embodiment of the present invention, and FIG. 20 is the fourth embodiment of the present invention. FIG. 21 is a diagram showing TS packets stored in the replacement TS packet memory, and FIG. 21 is a diagram showing output stop flags in the fourth embodiment of the present invention.

In FIG. 15, 100 is a transport stream processing device, 101 is a TS input device, and 102 is P.
ID comparator, 103 is a PID comparison data memory, 104
Is a TS output device, 105 is a TS replacement controller, 106 is a replacement TS packet memory, 107 is a discard replacement flag, and 108
Is a forced replacement flag, and 109 is an output stop flag.

Next, the operation of the TS replacement controller 105 of the transport stream processing apparatus of the present invention will be described with reference to the flowchart of FIG. First, if the forced replacement flag 108 indicates replacement target data, step S20.
8. If OUT, go to step S201 (step S207).

When the replacement target data is indicated, the replacement TS packet indicated by the forced replacement flag 108 is externally output from the TS packets stored in the replacement TS packet memory 106, and the process proceeds to step S209 (step S20).
8).

In the case of OUT, if the PID value comparison result S104 output from the PID comparator 102 is in agreement, the process proceeds to step S202, and if they are not in agreement, the process proceeds to step S205 (step S201).

If they match, the process proceeds to step S203 if the replacement target flag S105 output from the PID comparator 102 indicates the replacement target data, and to 204 if OUT (step S202).

When the replacement target data is indicated, the replacement TS packet indicated by the replacement target flag S105 is externally output from the TS packets stored in the replacement TS packet memory 106, and the process proceeds to step S209 (step S20).
3).

In the case of OUT, the TS packet output from the PID comparator 102 is output to the outside (step S20).
4). If they do not match in step S201, and if the discard replacement flag 107 indicates replacement target data, step S2
The process proceeds to 06, and if OUT, the process ends (step S205).

When the replacement target data is indicated, the replacement TS packet indicated by the discard replacement flag 107 is externally output from the TS packets stored in the replacement TS packet memory 106, and the process proceeds to step S209 (step S20).
6).

When the replacement TS packet is output to the outside, the TS
The TS packet output from the output device 104 is compared with the output stop flag 109. If they match, the process proceeds to step S210, and if they do not match, the process ends (step S).
209).

If they match, the TS output device 104 is controlled to stop the output of the transport stream output S107 (step S210). Next, FIG. 17 and FIG.
An example of transport stream processing according to the fourth embodiment of the present invention will be described with reference to FIGS. 8, 19, 20, and 21.

First, in the initial state of the transport stream processing apparatus 100, the forced replacement flag 108 is set to O.
When the output stop flag 109 is set to DIT1-2 in the UT, and the TS packets PAT0, PMT0, and PMT0 are input at times T0, T1, and T2, respectively, the TSs stored in the replacement TS packet memory 106 are stored. The packets PAT1, PMT1-1 and PMT1-2 are output.

At time T3, the forced replacement flag 108
If DIT1 is set to, the TS packets AUD0 and VID0 at time T4, instead of the TS packets AUD0 and VID0, are stored in the replacement TS packet memory 106.
Since DIT1-2 is output to the outside and DIT1-2 is set to the output stop flag 109 at T2, the output transport stream S107 is output at the time of outputting DIT1-2 set to the output stop flag 109 to the outside. Stop the output of.

As described above, the TS replacement controller 105
Stops the output of the output transport stream S107 of the TS output device 104 after outputting the TS packet specified in the output stop flag 109 to the outside, thereby guaranteeing that the specified TS packet is output to the outside and Final T of transport stream S107
It can be externally output as an S packet.

That is, when the DIT is output and the output transport stream is stopped, the output stop flag 10
By setting DIT1-2 to 9, it is possible to guarantee that the two TS packets forming the DIT are output to the outside, and also to output the DIT as the final TS packet of the output transport stream S107. (Fifth Embodiment) A transport stream processing apparatus according to the fifth embodiment will be described below with reference to FIGS.
4, FIG. 25, FIG. 26, FIG. 27, and FIG. The description of the same items as those already described will be omitted.

FIG. 22 is a block diagram showing the configuration of the transport stream processing apparatus according to the fifth embodiment of the present invention, and FIG. 23 is a flowchart of the transport stream processing apparatus according to the fifth embodiment of the present invention. Further, FIG. 24 is a data configuration diagram of a transport stream in the fifth embodiment of the present invention, and FIG. 25 is each T of an input transport stream in the fifth embodiment of the present invention.
FIG. 26 is a diagram showing PID values of S packets, FIG. 26 is a diagram showing PID values and replacement target flags stored in the PID comparison data memory according to the fifth embodiment of the present invention, and FIG. 27 is a diagram showing the fifth embodiment of the present invention. FIG. 28 is a diagram showing a TS packet stored in the replacement TS packet memory, and FIG. 28 is a diagram showing a timeout time in the fifth embodiment of the present invention.

In FIG. 22, 100 is a transport stream processing device, 101 is a TS input device, and 102 is P.
ID comparator, 103 is a PID comparison data memory, 104
Is a TS output device, 105 is a TS replacement controller, 106 is a replacement TS packet memory, 107 is a discard replacement flag, and 108
Is a forced replacement flag, 110 is a timeout controller, 11
Reference numeral 1 is a timeout setting flag.

Next, the operations of the TS replacement controller 105 and the timeout controller 110 of the transport stream processing apparatus of the present invention will be described with reference to the flowchart of FIG.

First, the PI output from the PID comparator 102
If the D value comparison result S104 is a match, step S20
2, the process proceeds to step S212 if they do not match (step S201).

In case of coincidence, if the replacement target flag S105 output from the PID comparator 102 indicates replacement target data, go to step S203, and if OUT, step S203.
The process proceeds to step 204 (step S202).

When the replacement target data is indicated, the TS packet indicated by the replacement target flag S105 is externally output from the TS packets stored in the replacement TS packet memory 106, and the process proceeds to step S211 (step S20).
3).

In the case of OUT, the TS packet output from the PID comparator 102 is output to the outside (step S20).
4). When outputting the TS packet indicated by the replacement target flag S105 to the outside, a timer built in the timeout controller 110 is initialized (step S211).

If the values do not match in step S201,
A timer incorporated in the timeout controller 110 measures the time so that the timeout time for TS replacement can be detected. The timeout time at this time is set by referring to the timeout setting flag 111. In addition, the timeout setting flag is the replacement TS
It is set according to the information in the packet memory. When the time when the replacement target signal S105 is input to the TS replacement controller 105 is before the timeout time, the TS output device 104
Terminates without outputting anything, and when the timeout time elapses,
The process proceeds to step S213 (step S212).

At the time-out time, from the TS packets stored in the replacement TS packet memory 106,
The TS packet indicated by the discard replacement flag 107 is externally output, and the process proceeds to step S214 (step S213).

When the TS packet indicated by the discard replacement flag 107 is output to the outside, the timer incorporated in the timeout controller 110 is initialized (step S214). Next, an example of transport stream processing according to the fifth embodiment of the present invention will be described with reference to FIGS. 24, 25, 26, 27, and 28.

Transport stream processing apparatus 100
In the initial state, the time T2 is set as the time-out time of the time-out setting flag 111 and the replacement target flag is set as PM
Set T1.

When the TS packets PAT0 and PMT0 are input at the times T0 and T1, respectively, the TS packets PAT1 and PAT1 stored in the replacement TS packet memory 106 are input.
Output PMT1.

When the TS packets VID0 and AUD0 are input, they are output as they are. At time T2,
The timeout time of the timeout setting flag 111 is T
Since it is set to 2, when the PMT1 set in the corresponding replacement target flag is set in the discard replacement flag 107 and the TS packet AUD1 is input,
The PID value 0x2100 of AUD1 is not set in the PID comparison data memory 103, is discarded by the PID comparator 102, and outputs the TS packet PMT1 set in the discard replacement flag 107.

As described above, the TS replacement controller 10
By using 5 and the timeout controller 110,
Even if there is no TS packet to be replaced in the input transport stream S101, the timeout setting flag 1
Replacement TS packet memory 10 at time intervals specified in 11
The TS packet stored in 6 can be externally output to the output transport stream S107.

That is, by setting the time T2 in the timeout setting flag 111, the TS packet P to be replaced in the input transport stream S101 is set.
Even without MT0, at time T2, the TS packet PMT1 set in the replacement target flag 108 can be output to the output transport stream S107.

When the timeout controller 110 times out, the timeout setting flag 11
By setting the TS packet set as the replacement target flag of 1 in the forced replacement flag 108, the replacement TS packet stored in the replacement TS packet memory 106 is output to the output transport stream S107 at the designated timeout interval. It can also be output externally. (Sixth Embodiment) A transport stream processing apparatus according to the sixth embodiment will be described below with reference to FIGS.
1, FIG. 32, FIG. 33, FIG. 34, and FIG. 35. The description of the same items as those already described will be omitted.

FIG. 29 is a block diagram showing the configuration of the transport stream processing apparatus according to the sixth embodiment of the present invention, and FIG. 30 is a flowchart of the transport stream processing apparatus according to the sixth embodiment of the present invention. 31 is a data configuration diagram of a transport stream according to the sixth embodiment of the present invention, and FIG. 32 is each T of an input transport stream according to the sixth embodiment of the present invention.
FIG. 33 is a diagram showing a PID value of an S packet, FIG. 33 is a diagram showing a PID value and a replacement target flag stored in a PID comparison data memory in the sixth embodiment of the present invention, and FIG. 34 is a diagram in the sixth embodiment of the present invention. FIG. 35 is a diagram showing TS packets stored in the replacement TS packet memory, and FIG. 35 is a diagram showing timeout times and timeout priority flags in the sixth embodiment of the present invention.

In FIG. 29, 100 is a transport stream processing device, 101 is a TS input device, and 102 is P.
ID comparator, 103 is a PID comparison data memory, 104
Is a TS output device, 105 is a TS replacement controller, 106 is a replacement TS packet memory, 107 is a discard replacement flag, and 108
Is a forced replacement flag, 110 is a timeout controller, 11
Reference numeral 1 is a timeout setting flag, and 112 is a timeout priority flag.

Next, the operation of the TS replacement controller 105 of the transport stream processing device of the present invention will be described with reference to the flowchart of FIG. First, PID comparator 1
If the PID value comparison result S104 output by 02 is a match, the process proceeds to step S202, and if they are not the same, the process proceeds to step S212 (step S201).

In the case of coincidence, if the replacement target flag S105 output from the PID comparator 102 indicates the replacement target data, go to step S203, and if OUT, step S203.
The process proceeds to step 204 (step S202).

When the replacement target data is indicated, the replacement TS packet indicated by the replacement target flag S105 is externally output from the TS packets stored in the replacement TS packet memory 106, and the process proceeds to step S211 (step S20).
3).

In the case of OUT, the TS output unit 104 outputs the TS packet output from the PID comparator 102 to the outside.
Is controlled (step S204). When the replacement TS packet is output to the outside in step S203, the timer built in the timeout controller 110 is initialized (step S211).

The timer incorporated in the timeout controller 110 measures the time so that the timeout time for TS replacement can be detected. The timeout time at this time is set by referring to the timeout setting flag 111, and the timeout setting flag is set to the replacement T
It is set according to the information in the S packet memory. In the case of disagreement in step S201, if the time when the replacement target signal S105 is input to the TS replacement controller 105 is before the timeout time, the TS output unit 104 ends without outputting anything, and if the timeout time Is step S215
Proceed to (step S212).

In the case of the time-out time, it is searched whether or not the time-out time overlaps with the time-out times of other replacement TS packets. If they overlap, the process proceeds to step S218, and if they do not overlap, the process proceeds to step S216 (step S215).

When they do not overlap, the replacement TS packet indicated by the discard replacement flag 107 is externally output from the TS packets stored in the replacement TS packet memory 106, and the process proceeds to step S217 (step S216).

When the replacement TS packet is output to the outside, the timer built in the timeout controller 110 is initialized (step S217). When overlapping in step S215, the replacement priority levels set in the respective replacement TS packets for which the timeout times overlap are searched.
If the priority is the highest, the process proceeds to step S216, and if a replacement TS packet having a priority other than the highest is searched, the process proceeds to step S219 (step S218).

If the priority is not maximum, the time-out time is delayed by the time corresponding to one TS packet, and the process proceeds to step S215 again (step S219). Next, referring to FIG.
An example of transport stream processing according to the sixth embodiment of the present invention will be described with reference to FIGS. 32, 33, 34, and 35.

FIG. 31 shows the input transport stream S101 and the output transport stream S107. FIG. 32 shows the input transport stream S
The correspondence between the data type of each TS packet 101 and the PID value is shown. FIG. 33 shows the PID comparison data memory 10
3 shows the PID value and the replacement target flag stored in No. 3. FIG. 34 shows replacement TS packet data stored in the replacement TS packet memory 106. Fig. 35
Indicates the timeout time and the timeout priority order set according to the replacement TS packet data stored in the timeout setting flag 111.

Transport stream processing apparatus 100
In the initial state, the timeout setting flag 111 has the replacement target flag and the timeout time shown in FIG.
Set the priority.

When the TS packets PAT0 and PMT0 are input at the times T0 and T1, respectively, the TS packets PAT1 and PAT1 stored in the replacement TS packet memory 106 are input.
Output PMT1.

When the TS packets VID0 and AUD0 are input, they are output as they are. Here, if the timeout time is set to T2, PM is set in the corresponding timeout setting flag 111 at time T2.
T1 and PAT1 are set, and the timeout times overlap. If the timeout times overlap,
The corresponding timeout priorities for overlapping PAT1 and PMT1 are compared. At this time,
PMT1 has a priority of 1, PAT1 has a priority of 2,
PMT1 is prioritized and PMT1 is discarded and replaced flag 107
, And the timeout time of PAT1 is set to T3.

At time T2, TS packet AUD1
Is input, the PID comparator 102 discards it and replaces T
TS packet P stored in the S packet memory 106
MT1 is output with priority.

At time T3, since the timeout times do not overlap, PAT1 is set in the discard replacement flag 107, and the TS packet PAT1 stored in the replacement TS packet memory 106 is output. If they are duplicated, the duplicated replacement data are compared again for priority, and the one with higher priority is output. While overlapping
The above operation is repeated.

As described above, the TS replacement controller 105
By using the time-out controller 110 and the time-out controller 110, when the output time-out time of the replacement TS packet is overlapped among some replacement TS packets, the priorities are compared and the TS packet having the highest priority is output. It can be externally output to S107.

That is, the PMT is set in the discard replacement flag 107.
1, PAT1 is set, and a timeout time and a priority are set accordingly, so that the TS packet PMT
1, output PAT1 transport stream S107
In addition, it is possible to output the data in descending order of priority.

When a timeout occurs, the TS packet set in the replacement target flag set in the timeout setting flag 111 is replaced with the forced replacement flag 10
By setting it to 8, TS packets are output at the designated time-out interval and the transport stream S1 is output.
It is also possible to externally output to 07. (Seventh Embodiment) A transport stream processing apparatus according to the seventh embodiment will be described below with reference to FIGS. 36 and 37. The description of the same items as those already described will be omitted.

FIG. 36 is a block diagram showing the configuration of the transport stream processing apparatus according to the seventh embodiment of the present invention, and FIG. 37 is a flowchart of the transport stream processing apparatus according to the seventh embodiment of the present invention.

In FIG. 36, 101 is a TS packet S
TS input unit for sending 100 to the subsequent stage, and 102 for the TS input unit 1
01 stored in the PID comparison data memory 103 with respect to the PID of the TS packet S101
The ID is compared and the processing result is compared with the PID comparison result S104,
Replacement target signal S105, PID comparator to be sent to the subsequent stage in partial transport stream S103, 103 is P
PID comparison data memory for storing the comparison PID data used in the ID comparator S102, 104 is a TS
P according to the replacement control signal S108 from the replacement controller 105
A TS output unit that switches and outputs TS packet data sent from the ID comparator 102 and the replacement TS packet memory 106, and 105 is a PID comparison result S104 sent from the PID comparator 102, a replacement target signal S105, and a TS output. Replacement state signal S10 sent from the instrument 104
9 and rate comparison result S1 sent from the rate comparator
A replacement controller for controlling the TS packet output from the TS output unit according to 15, a replacement TS packet memory for storing the TS packet to be replaced and output,
113 is a replacement TS packet number counter that counts the number of packets that have been replaced and output, 114 is a timer that supplies time information, and 115 is a T that has been replaced and output from the replacement TS packet number counter 113 and timer 114.
A rate calculator for calculating the rate of the S packet, a designated rate storage area 116 for storing the replacement rate designated by the user, and 117 an average rate designated by the user stored in the designated rate storage area S
114 is a rate comparator that compares 114 with the output rate S113 of the TS packet that has been replaced and output and that is supplied from the rate calculator, and determines whether the average rate S114 specified by the user is exceeded or dropped.

Next, the operation of the TS packet replacing device having the above configuration will be described with respect to the part relating to the replacement rate adjustment when the discard packet replacement is used. First, when the average rate of the replacement output packet is input by the user, the value is stored in the designated rate storage area 116.

When the TS packet stored in the replacement TS packet memory 106 is output from the TS output device 104 as the output stream S107, the replacement state signal S10 is output.
At 9, the replacement output information is sent to the replacement TS packet number counter 113 to increment the counter of the replacement TS packet number counter 113 by one.

Upon receiving the PID comparison result S104 from the PID comparator 102, the replacement controller 105 receives the replacement target signal S105 from the PID comparator 102 if the PID comparison result S104 matches, and replaces the replacement target signal S1.
When 05 is OUT, the substitution controller 105 sends an instruction to the TS output device 104 to output the TS stream S103 sent from the PID comparator to the output stream S107.

When the replacement target signal S105 is ON, the replacement controller 105 calculates the replacement TS packet rate calculated by the rate calculator 115 from the values of the replacement TS packet number counter 113 and the timer 114, and the designated rate. The rate comparison result S115, which is the processing result of the rate comparator 117 that compares the average rate specified by the user and is stored in the storage area 116, is received, and the rate of the TS packet replaced and output is the average rate specified by the user. When it exceeds the average rate, the TS output unit 104 is instructed not to output the packet, and when the rate of the replaced and output TS packet does not exceed the average rate designated by the user, the TS output unit 104 is output. For the TS packet stored in the replacement TS packet memory It sends an instruction to output the door.

PID received from PID comparator 102
If the comparison result S104 does not match, the replacement controller 1
Reference numeral 05 compares the rate of the TS packet output by replacement calculated by the rate calculator 115 from the values of the replacement TS packet number counter 113 and the timer 114 with the average rate specified by the user stored in the specified rate storage area 116. The rate comparison result S115, which is the processing result of the rate comparator 117, is received, and if the rate of the TS packet replaced and output is lower than the average rate specified by the user, the TS output unit 104 is replaced with the replaced TS packet memory. If the rate of the TS packet that has been replaced and output is not higher than the average rate designated by the user, the TS packet stored in the TS output unit 104 is not output to the TS output unit 104. To send instructions.

The above operation will be described with reference to the flowchart shown in FIG. 37 replaces step S205 of the flowchart shown in FIG. 2 with step S228,
Steps S229 to S237 are added,
Here, the part relating to the replacement rate control will be described centering on the changed and added parts.

First, the output rate of the TS packet that is output by replacing the value of the timer 114 and the value of the replacement TS packet number counter 113 is calculated (step S22).
9).

Next, in the rate comparator 117, the average rate specified by the user stored in the specified rate storage area 116 is compared with the output rate of the TS packet output by replacement calculated in step S229,
The replacement controller 10 determines whether the output rate of the replaced TS packet is below or above the average rate specified by the user as the rate comparison result S115.
5 (step S230).

Next, the replacement controller 105 sends the rate comparison result S115 sent from the rate comparator 117.
If the output rate of the replaced and output TS packet exceeds the average rate specified by the user, the TS output unit 104 is instructed not to output the TS packet to the output stream S107, and the output rate is not exceeded. If so, the TS output unit 104 is instructed to replace and output the TS packet stored in the replacement TS packet memory 106 (step S231).

On the other hand, if it is determined in step S201 that they do not match, step S232 follows.
As with 229, the TS output by replacing the value of the timer 114 with the value of the replacement TS packet number counter 113
Calculate the packet output rate (step S23)
2).

Next, as in step S230, the rate comparator 117 outputs the average rate specified by the user stored in the specified rate storage area 116 and the TS packet output by replacement calculated in step S232. The rate comparison result S1 is obtained by comparing the rates and determining whether the output rate of the TS packet that is output after replacement is lower or higher than the average rate designated by the user.
And sends it to the replacement controller 105 (step S23).
3).

Next, if the output rate of the TS packet replaced and output by the rate comparison result S115 sent from the rate comparator 117 in the replacement controller 105 is below the average rate specified by the user,
Replacement TS packet memory 10 for TS output device 104
6 is instructed to output the TS packet stored therein (step S228).

As described above, the replacement controller 105 is
Replaced TS packet output is designated rate storage area 1
When the average rate specified by the user stored in 16 is exceeded, TS packet output is not performed for the TS packet which is the replacement TS packet output target, and when the average rate specified by the user is exceeded. Can output a replacement TS packet to a discarded packet to approach the average rate specified by the user.

Note that the case of using the function of forcibly replacing the TS packets output when the average rate specified by the user falls below the same rate as in FIG.
As shown in step S232, step S2
33, step S228, step S234 which performs the same processing as step S206, step S235, step S236, and step S237 will be added.

When the replaced TS packet output falls below the average rate specified by the user stored in the specified rate storage area 116, either the discarded packet is replaced or the output packet is forcibly replaced. The use of both, but not both, is also included in the present invention.

[0139]

As described above, according to the transport stream processing apparatus of the present invention, when there is no TS packet to be replaced in the input transport stream, a new TS packet is discarded instead of the TS packet discarded by the PID comparator. When a TS packet is output and there is no TS packet discarded by the PID comparator, any TS packet in the input transport stream is replaced with a new TS packet and output, so that there is no TS packet discarded. However, the target TS packet can be inserted, and the position of the TS packet to be inserted can be set arbitrarily.

Also, by designating the TS packet for suspending the output of the output transport stream as the output suspension flag, the output of the designated TS packet is guaranteed and the final T of the output transport stream is designated.
S packets can be specified.

Further, by providing a time-out controller which outputs TS packets at designated time intervals, target TS packets can be periodically inserted at fixed time intervals, and the time-out setting flag has priority. By also setting, it is possible to set the priority of the TS packets to be inserted.

In addition, a designated rate storage area is provided for TS
Since the output of the packet is adjusted to secure the average transfer rate of the TS packet, the average transfer rate of the designated TS packet can be secured.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a transport stream processing device according to a first embodiment of the present invention.

FIG. 2 is a flowchart of a transport stream processing device according to the first embodiment of the present invention.

FIG. 3 is a data configuration diagram of a transport stream according to the first embodiment of the present invention.

FIG. 4 is a diagram showing a PID value of each TS packet of an input transport stream according to the first embodiment of the present invention.

FIG. 5 is a diagram showing a PID value and a replacement target flag stored in a PID comparison data memory according to the first embodiment of the present invention.

FIG. 6 is a diagram showing TS packets stored in a replacement TS packet memory according to the first embodiment of the present invention.

FIG. 7 is a block diagram showing a configuration of a transport stream processing device according to a second embodiment of the present invention.

FIG. 8 is a flowchart of a transport stream processing device according to the second embodiment of the present invention.

FIG. 9 is a data configuration diagram of a transport stream according to the second embodiment of the present invention.

FIG. 10 is a diagram showing a PID value of each TS packet of an input transport stream according to the second embodiment of the present invention.

FIG. 11 is a diagram showing a PID value and a replacement target flag stored in a PID comparison data memory according to the second embodiment of the present invention.

FIG. 12 is a diagram showing TS packets stored in a replacement TS packet memory according to the second embodiment of the present invention.

FIG. 13 is a block diagram showing a configuration of a transport stream processing device according to a third embodiment of the present invention.

FIG. 14 is a flowchart of a transport stream processing device according to the third embodiment of the present invention.

FIG. 15 is a block diagram showing a configuration of a transport stream processing device according to a fourth embodiment of the present invention.

FIG. 16 is a flowchart of a transport stream processing device according to the fourth embodiment of the present invention.

FIG. 17 is a data configuration diagram of a transport stream according to the fourth embodiment of the present invention.

FIG. 18 is a diagram showing a PID value of each TS packet of an input transport stream according to the fourth embodiment of the present invention.

FIG. 19 is a diagram showing PID values and replacement target flags stored in a PID comparison data memory according to the fourth embodiment of the present invention.

FIG. 20 is a diagram showing TS packets stored in a replacement TS packet memory according to the fourth embodiment of the present invention.

FIG. 21 is a diagram showing an output stop flag according to the fourth embodiment of the present invention.

FIG. 22 is a block diagram showing the configuration of a transport stream processing device according to the fifth embodiment of the present invention.

FIG. 23 is a flowchart of a transport stream processing device according to the fifth embodiment of the present invention.

FIG. 24 is a data configuration diagram of a transport stream according to the fifth embodiment of the present invention.

FIG. 25 is a diagram showing a PID value of each TS packet of an input transport stream according to the fifth embodiment of the present invention.

FIG. 26 is a diagram showing PID values and replacement target flags stored in a PID comparison data memory according to the fifth embodiment of the present invention.

FIG. 27 is a diagram showing TS packets stored in a replacement TS packet memory according to the fifth embodiment of the present invention.

FIG. 28 is a diagram showing a timeout time according to the fifth embodiment of the present invention.

FIG. 29 is a block diagram showing the configuration of a transport stream processing device according to the sixth embodiment of the present invention.

FIG. 30 is a flowchart of a transport stream processing device according to the sixth embodiment of the present invention.

FIG. 31 is a data configuration diagram of a transport stream according to the sixth embodiment of the present invention.

FIG. 32 is a diagram showing a PID value of each TS packet of an input transport stream according to the sixth embodiment of the present invention.

FIG. 33 is a diagram showing PID values and replacement target flags stored in a PID comparison data memory according to the sixth embodiment of the present invention.

FIG. 34 is a diagram showing TS packets stored in a replacement TS packet memory according to the sixth embodiment of the present invention.

FIG. 35 is a diagram showing a timeout time and a timeout priority flag in the sixth embodiment of the present invention.

FIG. 36 is a block diagram showing the configuration of a transport stream processing device according to the seventh embodiment of the present invention.

FIG. 37 is a flowchart of the transport stream processing device according to the seventh embodiment of the present invention.

FIG. 38 is a block diagram showing the configuration of a conventional transport stream processing device.

FIG. 39 is a data configuration diagram of a conventional transport stream.

FIG. 40 is a diagram illustrating a case where there is no TS packet to replace in the conventional transport stream.

[Fig. 41] D in the conventional transport stream
Diagram explaining the case of replacing IT

[Explanation of symbols]

100 Transport stream processing device 101 TS input device 102 PID comparator 103 PID comparison data memory 104 TS output device 105 TS replacement controller 106 Replacement TS packet memory 107 Discard replacement flag 108 Forced replacement flag 109 Output stop flag 110 Timeout controller 111 Timeout setting flag 112 Timeout priority flag 113 Replacement TS packet output counter 114 timer 115 Rate Calculator 116 designated rate storage area 117 Rate comparator S100 Receive transport stream S101 Input transport stream S102 PID comparison data S103 Partial transport stream S104 PID comparison result S105 Replacement target signal S107 Output transport stream S108 Replacement control signal S109 Replacement status signal S113 output rate S114 Average rate S115 rate comparison result

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Takao Shinta             1006 Kadoma, Kadoma-shi, Osaka Matsushita Electric             Sangyo Co., Ltd. F term (reference) 5C059 RB02 SS06 TA75 TC37 TD13                       UA02 UA34 UA38                 5K034 CC02 CC05 FF02 GG03 HH01                       HH02

Claims (14)

[Claims] 1. A transport stream processing apparatus for selecting a transport stream packet of an arbitrary service from a transport stream in which a plurality of services are multiplexed, comprising: an input means for receiving the transport stream; and a plurality of PID information. The PID storage means for storing is compared with the PID information of each transport stream packet of the transport stream received by the input means and the PID information of the storage means, and the transport stream packet having the same PID value is extracted to extract the PID value. Extraction means for discarding transport stream packets whose packet does not match, replacement packet storage means for storing a plurality of transport stream packets, and the replacement packet instead of the transport stream packets discarded by the extraction means. First control means for controlling insertion of the transport stream packet stored in the storage means, and replacing the transport stream packet extracted by the extraction means with the transport stream packet stored in the replacement packet storage means And a second replacement unit for inserting the transport stream packet stored in the replacement packet storage unit in place of the transport stream packet discarded by the extraction unit under the control of the first control unit. A transport stream processing device comprising: a replacing unit; and an output unit for externally outputting a transport stream in which the transport stream packet has been replaced by the first replacing unit and the second replacing unit. 2. A transport stream processing device for selecting a transport stream packet of an arbitrary service from a transport stream in which a plurality of services are multiplexed, comprising: an input means for receiving the transport stream and a plurality of PID information. The PID storage means for storing is compared with the PID information of each transport stream packet of the transport stream received by the input means and the PID information of the storage means, and the transport stream packet having the same PID value is extracted to extract the PID value. Extracting means for discarding transport stream packets that do not match each other, replacement packet storage means for storing a plurality of transport stream packets, and the replacement packet for any transport stream packet received by the input means. Second control means for replacing the transport stream packet stored in the storage means with the transport stream packet extracted by the extracting means, and second transport means for replacing the transport stream packet extracted by the extracting means with the transport stream packet stored in the replacement packet storage means 1 replacement unit, and 3rd replacement unit that replaces an arbitrary transport stream packet received by the input unit by the second control unit with a transport stream packet stored in the replacement packet storage unit, A transport stream processing apparatus comprising: the first replacing means and an output means for outputting the transport stream, which has replaced the transport stream packet by the third replacing means, to the outside. 3. A transport stream processing device for selecting a transport stream packet of an arbitrary service from a transport stream in which a plurality of services are multiplexed, comprising an input means for receiving the transport stream and a plurality of PID information. The PID storage means for storing is compared with the PID information of each transport stream packet of the transport stream received by the input means and the PID information of the storage means, and the transport stream packet having the same PID value is extracted to extract the PID value. Extraction means for discarding transport stream packets whose packet does not match, replacement packet storage means for storing a plurality of transport stream packets, and the replacement packet instead of the transport stream packets discarded by the extraction means. First control means for controlling insertion of the transport stream packet stored in the storage means, and transport stream packet storing any transport stream packet received by the input means in the replacement packet storage means A second control means for replacing the transport stream packet stored in the replacement packet storage means in place of the transport stream packet discarded by the extraction means under the control of the first control means. And a third replacing unit that replaces an arbitrary transport stream packet received by the input unit by the second control unit with the transport stream packet stored in the replacement packet storage unit. The second replacement means and the third replacement means Transport stream processing apparatus characterized by an output means for externally outputting the transport stream further substituted transport stream packet. 4. A stop packet storage means for storing an identifier indicating a transport stream packet stored in the designated replacement packet storage means, and a transport stream packet indicated by the identifier stored in the stop packet storage means. 4. The transport stream processing apparatus according to claim 1, further comprising a third control unit that stops the external output of the output unit after the output unit externally outputs. 5. A timer storage means for storing an arbitrary time, and a timer measurement for measuring an elapsed time after the first replacement means outputs the transport stream packet stored in the replacement packet storage means. And the second control means includes the replacement packet storage means when the first control means exceeds the time stored in the timer storage means by the first control means. The transport stream processing device according to claim 1, wherein the transport stream packet stored in the control unit is controlled to be output. 6. A timer storage means for storing an arbitrary time, and a timer measurement for measuring an elapsed time after the first replacement means outputs the transport stream packet stored in the replacement packet storage means. And a second control means, when the elapsed time measured by the measuring means exceeds a time stored in the timer storage means, the third replacement means includes the replacement packet storage means. 3. The transport stream processing apparatus according to claim 2, wherein the transport stream processing apparatus controls to output the transport stream packet stored in. 7. A timer storage means for storing an arbitrary time, and a timer measurement for measuring an elapsed time after the second replacement means outputs the transport stream packet stored in the replacement packet storage means. And a second control means, when the elapsed time measured by the measuring means exceeds a time stored in the timer storage means, the third replacement means includes the replacement packet storage means. The transport stream processing device according to claim 3, wherein the transport stream processing device controls to output the transport stream packet stored in. 8. A priority storage means for storing a priority designated for a transport stream packet stored in the replacement packet storage means, wherein the first control means measures the timer. When there are a plurality of transport stream packets stored in the replacement packet storage means whose elapsed time measured by the means exceeds the time stored in the timer storage means, priority stored in the priority storage means 6. The second replacement unit is controlled so as to output the transport stream packets stored in the replacement packet storage unit in descending order of priority by comparing the degrees. Transport stream processing device. 9. Priority storage means for storing a priority specified for a transport stream packet stored in the replacement packet storage means, wherein the second control means measures the timer. When there are a plurality of transport stream packets stored in the replacement packet storage means whose elapsed time measured by the means exceeds the time stored in the timer storage means, priority stored in the priority storage means 7. The third replacement means is controlled to output the transport stream packets stored in the replacement packet storage means in descending order of priority, by comparing the degrees. Item 7. The transport stream processing device according to item 7. 10. A bit rate storage unit for storing a bit rate designated for a transport stream packet stored in the replacement packet storage unit, and the first replacement unit stored in the replacement packet storage unit. And a bit rate measuring means for measuring a bit rate output by replacing the transport stream packet with the bit rate measured by the bit rate measuring means and the bit rate storage. The bit rates stored in the means are compared, and when the bit rate measured by the bit rate measuring means is small, the second replacing means outputs the transport stream packet stored in the replacing packet storage means. The transport stream according to claim 1, wherein the transport stream is controlled to Processing equipment. 11. A bit rate storage unit for storing a bit rate specified for a transport stream packet stored in the replacement packet storage unit, and the first replacement unit stored in the replacement packet storage unit. And a bit rate measuring means for measuring a bit rate output by replacing the transport stream packet with the bit rate measured by the bit rate measuring means and the bit rate storage. Comparing the bit rates stored in the means, and when the bit rate measured by the bit rate measuring means is small, the third replacing means outputs the transport stream packet stored in the replacing packet storage means. 3. The transport stream according to claim 2, wherein the transport stream is controlled to Processing equipment. 12. A bit rate storage unit for storing a bit rate specified for a transport stream packet stored in the replacement packet storage unit, and the second replacement unit stored in the replacement packet storage unit. And a bit rate measuring means for measuring a bit rate output by replacing the transport stream packet with the bit rate measured by the bit rate measuring means and the bit rate storage. Comparing the bit rates stored in the means, and when the bit rate measured by the bit rate measuring means is small, the third replacing means outputs the transport stream packet stored in the replacing packet storage means. 4. The transport stream according to claim 3, wherein the transport stream is controlled to Processing equipment. 13. A bit rate storage unit for storing a bit rate specified for a transport stream packet stored in the replacement packet storage unit, and the first replacement unit stored in the replacement packet storage unit. The bit rate measuring means for measuring the bit rate output by replacing the bit rate with the transport stream packet is compared with the bit rate measured by the bit rate measuring means stored in the bit rate storing means. A fourth control unit that controls the first replacement unit so as not to output the transport stream packet stored in the replacement packet storage unit when the bit rate measured by the bit rate measurement unit is high. The transport stream according to claim 1 or 2, having Management apparatus. 14. A bit rate storage unit for storing a bit rate designated for a transport stream packet stored in the replacement packet storage unit, and the second replacement unit stored in the replacement packet storage unit. And a bit rate measuring means for measuring a bit rate output by replacing the transport stream packet with the bit rate measured by the bit rate measuring means and the bit rate storage. The bit rates stored in the means are compared, and when the bit rate measured by the bit rate measuring means is small, the second replacing means outputs the transport stream packet stored in the replacing packet storage means. 4. The transport stream according to claim 3, wherein the transport stream is controlled to Processing equipment.