JP3865190B2 - Encoded moving image data reproducing apparatus and storage medium thereof - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an encoded moving image data reproduction device and a storage medium thereof, and more particularly to an encoded moving image data reproduction device and a storage medium thereof capable of efficiently reproducing a plurality of moving image data streams (hereinafter abbreviated as streams). About.
[0002]
[Prior art]
A conventional encoded moving image data reproducing apparatus will be described with reference to FIGS. FIG. 10 is a block diagram showing the configuration of a conventional encoded video / audio data reproducing device, FIG. 11 (a) is a block diagram showing an example of a coded stream supply device, and FIG. 10 (b) is a live video stream supply. It is a block diagram which shows an example of an apparatus.
[0003]
As shown in FIG. 10, in the conventional encoded moving image / audio data reproducing apparatus, the stream designated by the decoding controller 56 is changed from the first stream 11 to the pth stream 12 connected by the network. In the case of any one of the above, the designated stream is input to the input selector 51 via the network 13.
[0004]
For example, when the designated stream is an encoded video file, it is stored in the storage device 61 from the video data controller 62 according to the stream address designated by the decoding controller 56 as shown in FIG. The video data is read out and sent to the network 13 through the stream transmitter 63. On the other hand, when the designated stream is a live video, the video input from the camera 64 is encoded in real time by the live encoder 65 as shown in FIG. Is sent out.
[0005]
If the stream designated by the decoding controller 56 is any one of the (p + 1) th stream 14 to the p + qth stream 15 connected locally without going through the network 13, the designated stream Is directly input to the input selector 51. For example, if the p + 1-th stream 14 is an encoded video file, the stream is input to the input selector 51 as shown in FIG. 11A, whereas if it is a live video, the stream is input to the input selector 51 as shown in FIG. Sent out.
[0006]
In the input selector 51, the stream designated by the decoding controller 56 is selected for the input stream and is input to the first decoder 52 as the stream st1. The first decoder 52 is activated by the decoding controller 56 and the decoding operation is started. The signal output from the first decoder 52 is input to the output memory 53. In the output memory 53, the memory space # 1 corresponding to the output from the first decoder 52 is secured by the decoding controller 56, and the output signal is stored in the memory space # 1.
[0007]
The screen output circuit 54 reads the data stored in the memory space # 1 from the output memory 53 and outputs it to the screen output circuit 54 according to the control from the decoding controller 56. The screen output circuit 54 outputs the input memory contents to the output screen 55.
[0008]
[Problems to be solved by the invention]
When a plurality of videos are simultaneously reproduced using the above-described conventional encoded moving image / audio data reproducing apparatus, a plurality of configurations as shown in FIG. 10 are activated to output a plurality of screens. As an example, consider a case where a decryption process is performed by software using a CPU of a personal computer. For example, when a processing amount of 80% of the CPU is required to decode one stream, one stream can be reproduced, but a plurality of streams cannot be reproduced simultaneously. Also, for example, if the CPU load is less than 100% even when the decoding of a plurality of streams is started simultaneously, the decoding of each stream is started individually, and the screen arrangement displayed on the output screen 55 is changed each time. There was a problem that it was necessary to adjust.
[0009]
An object of the present invention is to solve the above-described problems of the prior art and provide an encoded moving image data reproducing apparatus and a storage medium thereof capable of efficiently decoding a plurality of streams simultaneously.
[0010]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides an encoded moving image data reproducing apparatus for decoding compressed and encoded moving image data stored in a storage device existing on a network, wherein one piece of input moving image data or A plurality of input data selecting means, a plurality of decoding means having different amounts of processing, wherein the amount of processing for decoding is determined in advance according to the number of the selected moving image data, and the decoding means Storage means having a plurality of storage areas for storing the decoded moving image data, and decoded data selection means for selecting one or more moving image data in accordance with the number of moving image data stored in the storage means; Display means for simultaneously displaying one or more moving image data selected by the decoded data selecting means, the decoding means depending on the number of moving image data to be decoded Decoding means with different processing amount without changing the entire decoding processing amount The first feature is that the adaptive selection is performed. According to this feature, it is possible to systematically and efficiently reproduce a plurality of moving image data streams.
[0011]
In the present invention, the decoding means is a decoding means having a smaller processing amount as the number of moving image data to be decoded increases. choose There is a second feature in the point made to do. According to this feature, a plurality of streams can be played back without changing the overall processing amount.
[0012]
Further, the present invention has a third feature in that the decoding means uses decoding means to which a specific processing amount is assigned for each moving image data to be decoded. According to this feature, a plurality of streams can be played back without changing the overall processing amount, and a specific stream can be played back with high quality.
[0013]
In addition, the present invention has a fourth feature in that output screen control means for controlling the screen to be output is provided, and screen output is performed by a control procedure of the output screen control means. According to this feature, it is not necessary to adjust the display screen arrangement of a plurality of reproduced streams each time, and the operability is improved.
[0014]
Further, the present invention provides a function for selecting a plurality of streams to be reproduced, a function for decoding the selected plurality of streams, a function for storing the decoded data in a predetermined memory location, It is a computer-readable recording medium having a function for outputting the read data to the screen and a function for controlling the screen position from which the data is output. There are 5 features. According to this feature, it is possible to provide a computer-readable recording medium that can efficiently reproduce a plurality of streams.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing a configuration of an encoded moving image / audio data reproducing apparatus according to an embodiment of the present invention.
[0016]
When the stream designated by the decoding controller 24 is from the first stream 11 connected to the network 13 to the p-th stream 12, the designated stream is inputted to the input selector 17 via the network 13. The On the other hand, when the streams designated by the decoding controller 24 are from the (p + 1) th stream 14 to the (p + q) th stream 15 connected locally without going through the network, the designated stream is the direct input selector 17. Is input.
[0017]
If the designated stream is an encoded video file, the input selection is performed as shown in FIG. 11 (a). If the designated stream is a live video, the input selection is performed as shown in FIG. 11 (b). The supply to the container 17 is the same as in the prior art. The same applies to other embodiments described below.
[0018]
In the input selector 17, j streams designated by the decoding controller 24 are selected from the input streams, and from the first decoder 18 to the jth decoder 19 as the streams st1 to stj, respectively. Entered. The first decoder 18 to the jth decoder 19 are activated by the decoding controller 24 to start the decoding operation. The signals output from the first to jth decoders 18 to 19 are input to the output memory 20. In the output memory 20, the memory space # 1 to the memory space #j corresponding to the outputs from the first decoder 18 to the j-th decoder 19 are secured by the decoding controller 24, and each output signal is assigned to the corresponding memory. Accumulate in spaces # 1 to #j.
[0019]
The output switch 21 selects the memory space corresponding to the stream number connected to the kth to lth output channels according to the control from the decoding controller 24, reads the corresponding memory contents from the output memory 20, and outputs the screen. Output to the circuit 22. The screen output circuit 22 converts the input memory contents into an analog signal and outputs it to the output screen 23 in the order specified by the decoding controller 24. For example, when the M screen is displayed horizontally and the N screen is displayed vertically, the output screen 23 is the kth output channel screen from the upper left to the right, the k + 1th output channel screen,..., The (k + M−1) th output channel screen. Is displayed. From the lower left to the right, the {k + M (N−1)} output channel screen,..., The (k + MN−1) th output channel screen are displayed.
[0020]
As a selection procedure of the input selector 17, the following selection methods can be used.
(a) Selection method 1
(a-1) When p + q is larger than j, the streams from # 1 to #j are output as st1 to stj.
[0021]
(a-2) When the next screen output is selected by the output screen controller 25, the streams from # j + 1 to # 2j are output as st1 to stj.
(b) Selection method 2
(b-1) Out of (p + q) streams, j streams selected by the output screen controller 25 are output as st1 to stj.
[0022]
Further, as the selection order of the output switching device 21, the following selection methods can be used.
(a) Selection method 1
Select in order of stream file name.
(b) Selection method 2
Select in order of stream address such as IP address and port number.
(c) Selection method 3
Select in order of coding bit rate.
[0023]
Further, the number of playback screens can be changed by the following control by the output screen controller 25.
(a) Change method 1
(a-1) When a plurality of screens are displayed at the same time, when a certain screen is selected by the output screen controller 25, the decoder of the other stream is stopped and the decoding screen of the selected stream Are displayed on the entire output screen 23.
[0024]
(a-2) When multiple screen display is selected by the output screen controller 25 while only one stream is being selected and played back, the currently playing stream is output as the k-th output by the output switch 21 Output to the screen 23. A plurality of screens selected by the output screen controller 25 are selected by the input selector 17, a decoder is activated for the selected plurality of streams, and images output in accordance with the selection order of the output switch 21 are displayed. The output is output to the output screen 23, starting from the (k + 1) th output.
(b) Change method 2
When the output screen controller 25 is changed so that the number of output screens is reduced by m from the present, only the number of screens that have been reduced by m from the k-th output is displayed on the output screen 23, and the reduced number m The decoder is stopped for the other stream.
(c) Change method 3
When the output screen controller 25 changes the number of output screens so that it increases by m, the stream currently being decoded continues as it is. The decoding controller 24 newly selects m streams by the input selector 17 and activates m decoders for these streams. The decoded video / audio data is accumulated in m memory spaces of the output memory 21, set in the output order following the screen currently being output by the output switch 21, and screen output is performed on the output screen 23.
[0025]
According to the present embodiment having the above configuration, when a plurality of streams are decoded and displayed on the output screen, or when the number of already displayed streams is changed (increase / decrease), a plurality of streams are conventionally used. It is no longer necessary to individually activate the decoding of each stream and adjust the screen layout each time. That is, it becomes possible to systematically start decoding of each stream and systematically adjust the screen arrangement in accordance with a command from the signal controller 24, that is, the CPU, and efficiently decode and display a plurality of streams. It becomes easy and easy to do.
[0026]
Next, a second embodiment of the present invention will be described with reference to FIG. When the stream designated by the decoding controller 24 is from the first stream 11 to the p-th stream 12 connected via the network, the designated stream is input to the input selector 17 via the network 13. . On the other hand, when the streams designated by the decoding controller 24 are from the (p + 1) th stream 14 to the (p + q) th stream 15 connected locally without going through the network, the designated stream is the direct input selector 17. Is input.
[0027]
In the input selector 17, j streams designated by the decoding controller 24 are selected from the input streams, and output from the streams st1 to stj. In the output stream, a decoder is determined according to the number j and input to the decoder as follows.
(a) When j = 1
In this case, the stream st1 is input to the eleventh decoder 31 by the decoding controller 24, the eleventh decoder 31 is activated to perform the decoding process, and the signal output from the eleventh decoder 31 is output. Input to the memory 20. In the output memory 20, the decoding controller 24 secures the memory space # 1 and stores the output signal in the memory space # 1.
(b) When j = 2
In this case, the decoding controller 24 inputs the stream st1 and the stream st2 to the twenty-first decoder 32 and the twenty-second decoder 33, respectively, and activates the twenty-first decoder 32 and the twenty-second decoder 33. Then, the decoding process is performed, and the signal output from each decoder is input to the output memory 20. In the output memory 20, the decoding controller 24 secures the memory space # 1 and the memory space # 2 for the twenty-first decoder 32 and the twenty-second decoder 33, respectively, and stores the output signal in the memory space.
(c) If j = n,
In this case, the decoding controller 24 inputs the streams st1 to stn to the jj decoder 36 from the j1 decoder 34, respectively, and the jj decoder 36 is activated from the j1 decoder 34. The signal output from each decoder is input to the output memory 20. In the output memory 20, the decoding controller 24 secures the memory space # 1 and the memory space #j from the j1 decoder 34 to the jj decoder 36, and the output signals are transferred to the memory spaces # 1 to #j. accumulate.
[0028]
Furthermore, it is possible to perform decoding processing of a plurality of streams without changing the overall decoding processing amount by activating decoders having different processing amounts according to the number of j and performing decoding processing.
[0029]
As the processing amount of the decoder, the following configuration is possible.
(a) When j = 1
The decoder performs normal decoding. That is, audio and video are processed using the maximum processing capability of the decoder.
(b) When j = 2
Each decoder performs decoding with half the processing capacity (50%) with respect to the decoding process (100%) when j = 1. For example, when the video decoding process is j = 1 and X11 (> 50)% of the entire decoding process, the video decoding process is reduced to X21 = X22 = (X11-50)% as shown in FIG. The throughput of the 21st and 22nd decoders can be reduced to 1/2 of the original decoding throughput. For example, when X = 80%, the decoding processing amount of video of each decoder is set to 30% of the original decoding processing, so that two decoding processes can be performed simultaneously without changing the entire decoding processing amount. Is possible. The processing reduction method can be realized by reducing the number of decoded frames or limiting the decoding frequency components. Note that 100-X11 in FIG. 3 indicates the processing amount of audio data.
(c) When j = n
Each decoder performs decoding with a processing capacity of 1 / n ((100 / n)%) with respect to the decoding process (100%) when j = 1. For example, when the video decoding process is j = 1 and X11% of the entire decoding process, the video decoding process is reduced to Xj1 = Xj2 =... = Xjj = (X11-100 + 100 / n)% as shown in FIG. Thus, the processing amount of the j1, j2,..., Jj decoders can be reduced to 1 / n of the original decoding processing amount. This reduction makes it possible to simultaneously perform j decoding processes without changing the entire decoding processing amount.
[0030]
Also, for example, when the video decoding process is j = 1 and 100% of the entire decoding process, the video decoding process is limited to only the video decoding process as shown in FIG. 4, and each decoding is reduced to (100 / n)%. The processing amount of the device can be reduced to 1 / n of the original decoding processing amount.
[0031]
Thereafter, the output switch 21 selects a memory space corresponding to the stream number connected to the kth to lth output channels according to the control from the decoding controller 24, and reads the corresponding memory contents from the output memory 20. This is output to the garbage screen output circuit 22. The screen output circuit 22 outputs the input memory contents to the output screen 23 in the order specified by the decoding controller 24. For example, when displaying M screens horizontally and N screens vertically, the kth output channel screen, the (k + 1) th output channel screen, and the (k + M−1) th output channel screen are displayed from the upper left to the right. From the lower left to the right, the {k + M (N−1)} output channel screen,..., The (k + MN−1) th output channel screen are displayed.
[0032]
As described above, according to the present embodiment, even if a processing amount of 50% or more of the CPU, for example, 80%, is required for the playback processing of one stream, the playback processing of a plurality of streams is performed by one CPU. Will be able to do. In other words, a plurality of streams can be played back without changing the overall processing amount.
[0033]
Next, a third embodiment of the present invention will be described with reference to FIG. In this embodiment, when the stream designated by the decoding controller 24 is from the first stream 11 connected to the network 13 to the p-th stream 12, the designated stream is selected via the network 13. Is input to the device 17. On the other hand, when the stream designated by the decoding controller 24 is from the (p + 1) th stream 14 to the (p + q) stream 15 connected locally without going through the network, the designated stream is sent to the direct input selector 17. Entered.
[0034]
In the input selector 17, j streams designated by the decoding controller 24 are selected from the input streams, and output from the streams st1 to stj. For the output stream, the decoder is determined according to the number j and input to the decoder as follows.
(a) The determination of the decoder in the case of j = 1 and j = 2, and the memory space of the output memory 20 for storing the decoded signal are the same as those in the second embodiment, and thus the description thereof is omitted.
(b) If j = n,
In this case, the stream controller 1 inputs the stream st1 to the 21st decoder 32, and the remaining streams st2 to stj are input from the j2 decoder 35 to the jj decoder 36, respectively. The 21st decoder 32 and the j2th decoder 35 to the jjth decoder 36 are activated to perform a decoding process, and the signal output from each decoder is input to the output memory 20. In the output memory 20, the decoding controller 24 secures the memory space # 1 for the 21st decoder 32 and the memory space # 2 from the memory space # 2 for the j2 decoder 35 to the jj decoder 36. Then, the output signals are stored in the memory spaces # 1 to #j.
[0035]
Furthermore, a plurality of decoding processes can be performed without changing the entire decoding process amount by activating decoders having different processing amounts depending on the number of j and performing the decoding process.
[0036]
The processing amount of the decoder is the same as in the second embodiment when j = 1 and when j = 2. That is, when j = 1, the decoder performs normal decoding, that is, processes audio and video using the maximum processing capability of the decoder. In the case of j = 2, each decoder performs decoding with half the processing capacity of the decoding process in the case of j = 1.
[0037]
On the other hand, when j = n, the next processing amount is set.
[0038]
The stream st1 is input to the 21st decoder 32 and decoded by 1/2 of the original decoding process. The remaining streams st2 to stn are respectively input from the j2th decoder 35 to the jjth decoder 36, and each decoder 1 / (2 (j-1)) of the original decoding process as shown in FIG. Perform decryption. As a result, the stream st1 is restored with high quality, the other streams are restored with a smaller processing amount, and the important stream st1 can be restored with higher quality.
[0039]
To generalize this, when stream st1 is decoded by X% of the original decoding process, the remaining streams st2 to stn are respectively (100-X) / (j-1) of the original decoding process as shown in FIG. By performing the decoding process at%, the stream st1 can be restored with high quality, and the other streams can be restored with a smaller processing amount and the important stream st1 can be restored with higher quality. Moreover, the total decoding processing amount of the decoding means can be prevented from exceeding the maximum signal processing amount (100%) of one moving image data.
[0040]
The output switch 21 selects a memory space corresponding to the stream number connected to the kth to lth output channels according to the control from the decoding controller 24, and reads the corresponding memory contents from the output memory 20. Output to the output circuit 22. The screen output circuit 22 outputs the input memory contents to the output screen 23 in the order specified by the decoding controller. For example, when M screens are displayed horizontally and N screens are displayed vertically, the kth output channel screen, the (k + 1) th output channel screen, and the (k + M−1) th output channel screen are displayed from the upper left to the right. Further, from the lower left to the right, {k + M (n−1)} output channel screens,..., (K + MN−1) output channel screens are displayed.
[0041]
According to this embodiment, a plurality of streams can be played back without changing the overall processing amount, and a specific stream can be played back with high quality.
[0042]
FIG. 7 is a block diagram of an essential part of the fourth embodiment of the present invention. The screen output circuit 31 replaces the screen output circuit 22 shown in FIGS. The screen output circuit 31 includes an enlargement / reduction processing unit 31a and a screen output unit 31b.
[0043]
In the present embodiment, when an output resolution is specified from the decoding controller 24, the enlargement / reduction processing unit 31a converts the image input from the output memory 20 via the output switch 21 to the specified output resolution. . For example, when the resolution of the input image is 320 pixels × 240 lines and the designated output resolution is 640 pixels × 480 lines, the enlargement process is performed twice in the horizontal and vertical directions. As an enlargement processing method, for example, a method of copying and interpolating an original image, or a method of interpolating an average value between original pixels can be used.
[0044]
Next, the multiple stream playback function described in the first to fourth embodiments can be realized by software (program), and the software can be recorded on a general-purpose recording medium such as an optical disk, a floppy disk, or a hard disk. . Alternatively, it may be previously stored in a memory such as a hard disk of a computer, or may be taken into a memory such as a hard disk of the computer from a network to which the computer is connected.
[0045]
FIG. 8 is a conceptual diagram of a reproduction function of a plurality of streams stored in the recording medium. In the embodiment of the present invention, a stream selection function, an input selection function, a decoding function, a memory function, an output switching function, a screen output function ( Alternatively, an enlargement / reduction screen output function) and an output screen control function can be stored.
[0046]
FIG. 9 is a block diagram illustrating a hardware configuration of a computer that reads a program recorded on a recording medium such as the general-purpose recording medium or a hard disk and executes the playback function of the stream. The computer 100 stores various data such as a recording medium 110 on which a plurality of streams of reproduction programs are recorded, a reading device 111 that reads the reproduction programs from the recording medium 110, a CPU 112 that executes the reproduction programs, and the like. It includes a ROM 113, a RAM 114 for storing calculation parameters, an input device 115 such as a keyboard and a mouse, an output device 116 such as a display and a printer, an input / output interface 117 connected to a network and the like.
[0047]
The CPU 112 executes the reproduction process of the first to fourth embodiments by executing a reproduction program of a plurality of streams recorded on the recording medium 110 via the reading device 111.
[0048]
【The invention's effect】
As described above, according to the present invention, a plurality of moving image data streams to be reproduced are selected, decoded in parallel, and simultaneously displayed on the display means. This eliminates the need to individually start decoding each stream of multiple video data and adjust the screen layout displayed on the output screen each time, making playback more efficient and easier than before. It becomes possible to do.
[0049]
In addition, since the processing load of the decoder is changed according to the number of streams to be reproduced simultaneously, it is possible to reproduce a plurality of streams without changing the overall processing amount.
[0050]
In addition, since the decoding means having a different processing amount is used for each moving image data to be decoded, only important streams can be reproduced with high quality and other streams can be reproduced with low quality.
[0051]
Further, since the screen output is performed according to the control procedure of the output screen control means, it is not necessary to adjust the display screen arrangement of the plurality of reproduced streams each time, and the operability is improved.
[0052]
In addition, it is possible to provide a computer-readable recording medium on which a program capable of reproducing a plurality of moving image data streams more efficiently than before can be recorded.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of a first embodiment of the present invention.
FIG. 2 is a block diagram showing a configuration of second and third embodiments of the present invention.
FIG. 3 is a diagram illustrating an example of a processing amount of a decoder according to a second embodiment.
FIG. 4 is a diagram illustrating another example of the processing amount of the decoder according to the second embodiment.
FIG. 5 is a diagram illustrating an example of a processing amount of a decoder according to a third embodiment.
FIG. 6 is a diagram illustrating another example of the processing amount of the decoder according to the third embodiment.
FIG. 7 is a block diagram showing a configuration of a main part of a fourth embodiment of the present invention.
FIG. 8 is a diagram showing an outline of a program recorded on a recording medium.
FIG. 9 is a block diagram showing a configuration of a computer that executes a reproduction program recorded on a recording medium of the present invention.
FIG. 10 is a block diagram illustrating a conventional configuration example.
FIG. 11 is a block diagram showing a stream transmission device when a stream to be played is an encoded video file and a live video.
[Explanation of symbols]
11-12: 1st to pth stream, 13: network, 14-15: p + 1 to p + q stream, 17: input selector, 18-19: 1st to jth decoder, 20: output memory, 21 DESCRIPTION OF SYMBOLS ... Output switcher, 22 ... Screen output circuit, 23 ... Output screen, 24 ... Decoding controller, 25 ... Output screen controller, 100 ... Computer, 110 ... Recording medium.

Claims (15)

In an encoded moving image data reproducing device for decoding compressed encoded moving image data stored in a storage device existing on a network,
Input data selection means for selecting one or more moving image data to be input;
A plurality of decoding means having different processing amounts, wherein a processing amount for decoding is determined in advance according to the number of the selected moving image data;
Storage means having a plurality of storage areas for storing the moving image data decoded by the decoding means;
Decoded data selecting means for selecting one or a plurality of moving image data according to the number of moving image data stored in the storage means;
Display means for simultaneously displaying one or a plurality of moving image data selected by the decoded data selection means,
According to the number of moving image data to be decoded, the decoding unit adaptively selects a decoding unit having a different processing amount without changing the entire decoding processing amount. . In the encoded moving image data reproducing device according to claim 1,
The encoded moving image data reproducing apparatus, wherein the decoding unit selects a decoding unit having a smaller processing amount as the number of moving image data to be decoded increases. In the encoded moving image data reproducing device according to claim 2,
The decoding means decodes each moving image data with a processing amount of 1 / n of the maximum decoding processing amount of one moving image data when reproducing n moving image data (where n is an integer of 2 or more). An encoded moving image data reproducing apparatus characterized by: In the encoded moving image data reproducing device according to claim 1,
The encoded moving image data reproducing apparatus, wherein the decoding means uses decoding means to which a specific processing amount is assigned for each moving image data to be decoded. In the encoded moving image data reproducing device according to claim 4,
The total decoding processing amount of the decoding means assigned with a specific processing amount for each moving image data to be decoded does not exceed the maximum signal processing amount that is the decoding processing amount when decoding one moving image data. An encoded moving image data reproducing apparatus characterized by: In the encoded moving image data reproducing device according to claim 4 or 5,
A larger amount of decoding processing is assigned to specific encoded video data than other encoded video data, and the specific encoded video data is restored with higher quality. Encoded moving image data reproduction device. In the encoded moving image data reproducing device according to claim 4,
The decoding means decodes one encoded moving image with X% of the maximum decoding processing amount of one moving image data, and the other moving image data is the one moving image data. An encoded moving image data reproducing apparatus, wherein each moving image data is decoded at a processing amount of (100−X) / (n−1)% of the maximum decoding processing amount. In the encoded moving image data reproducing device according to any one of claims 1 to 7,
An encoded moving image data reproducing apparatus comprising output screen control means for controlling a screen to be output, and performing screen output according to a control procedure of the output screen control means. In the encoded moving image data reproducing device according to claim 8,
The control procedure determines an area for screen output in the order of any one of an IP address, a port number, a file name, and an encoding bit rate in which the moving image data is stored. . In the encoded moving image data reproducing device according to claim 8 or 9,
When a specific screen is selected by the output screen control means while a plurality of screens are displayed at the same time, decoding of a stream other than the screen is stopped and only the screen is output to the screen. An encoded moving image data reproducing apparatus. In the encoded moving image data reproducing device according to claim 8 or 9,
When m streams are reduced by the output screen control means while a plurality of screens are displayed at the same time, decoding of the m streams (where m is a positive integer) is stopped and reduced. An encoded moving image data reproducing apparatus, wherein screen output is performed by reducing a screen corresponding to the stream thus produced according to a screen output control procedure. In the encoded moving image data reproducing device according to claim 8 or 9,
When m streams are added by the output screen control means while a plurality of screens are displayed at the same time, the decoding of the m streams is started, and the screen after the decoding of the added streams is displayed. An encoded moving image data reproducing apparatus, wherein screen output is performed in accordance with an output control procedure. In the encoded moving image data reproducing device according to claim 1,
And a means for converting the image to a designated resolution, wherein the decoded data selected by the decoded data selection means is converted to a designated resolution and output to the display means. An encoded moving image data reproducing apparatus. In the encoded moving image data reproducing device according to any one of claims 1 to 13,
The encoded moving image data reproducing apparatus, wherein the moving image data is moving image audio data. Computer
The ability to select multiple streams to play,
A function of decoding with a plurality of decoding capabilities, in which a processing amount for decoding is determined in advance according to the number of the selected moving image data;
A function of storing the decrypted data in a predetermined memory location;
A function of outputting data read from the memory location to the screen;
A computer-readable recording medium having recorded thereon a program for functioning as a function for controlling a screen position where the data is output.

Images