CN1767622A - Reproduction apparatus, data processing system, reproduction method, program, and storage medium - Google Patents

Reproduction apparatus, data processing system, reproduction method, program, and storage medium Download PDF

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Publication number
CN1767622A
CN1767622A CNA2005101141652A CN200510114165A CN1767622A CN 1767622 A CN1767622 A CN 1767622A CN A2005101141652 A CNA2005101141652 A CN A2005101141652A CN 200510114165 A CN200510114165 A CN 200510114165A CN 1767622 A CN1767622 A CN 1767622A
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China
Prior art keywords
picture data
data
reproduction
picture
decoding
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CNA2005101141652A
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Chinese (zh)
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CN100466712C (en
Inventor
纲岛修二
柴田正二郎
高村元嗣
小薮恭平
柿田新次郎
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Sony Corp
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Sony Corp
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    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract

A reproduction apparatus for decoding and reproducing a plurality of picture data forming reproduced data in order, comprising a reproduction memory, a decoder for decoding the picture data, writing decoding results in the reproduction memory, and reproducing and outputting the decoding results read from the reproduction memory, and a processing circuit for performing decoding scheduling for determining an order of decoding the picture data at the decoder in predetermined units of a plurality of the picture data, selecting the picture data to be processed in the order determined by the decoding scheduling, determining whether to decode the selected picture data or reproduce and output the decoding results in accordance with a designated reproduction rate, and controlling the decoding and the reproduction and output of the decoder based on the decision.

Description

Reproducer, data handling system, reproducting method, program and storage medium
The cross reference of related application
The present invention comprises Japanese patent application 2004-311596 that submits in Japan Patent office with October 26 in 2004 and the relevant theme of submitting in Japan Patent office on August 24th, 2005 of Japanese patent application 2005-243292, and their whole contents is included in this by reference.
Technical field
The present invention relates to be used for reproducer, data handling system, reproducting method, program and storage medium that the data of having reproduced are reproduced.
Background technology
For example, have the reproducer of decoding and reproducing to by the reproduction data of MPEG (Motion Picture Experts Group) scheme coding.Such reproducer, for example, carry out decoding scheduling, so that is unit, determines timing and order that the referring-to relation and the selected picture data of reproduction speed of foundation picture data are decoded with I, P and B picture data group that form to reproduce data (GOP), and according to the result of decoding scheduling decode this picture data and reproduction and output decoder result.In this reproducer, for example, when receiving the order that changes reproduction speed, in the decoding scheduling of the next GOP after just reproduced GOP, generate result corresponding to the decoding scheduling of the reproduction speed that changes.As a reference, referring to open (A) 2003-101967 of Japan Patent.
Yet, in the reproducer of above-mentioned association area, when receiving the order that changes reproduction speed, because generate decoding scheduling result in the decoding scheduling of the next GOP after just reproduced GOP corresponding to the reproduction speed that is changed, so only among the next GOP after the GOP of just decoded and reproduced when receiving this change order and output, obtain reproduction and output corresponding to the reproduction speed that is changed.Therefore, from the order that receive to change reproduction speed the time be carved into acquisition and need the long period corresponding to the reproduction of the reproduction speed that is changed and the moment of output, that is to say that it has the shortcoming of difference in response.
Summary of the invention
An object of the present invention is to provide a kind of reproducer, data handling system, reproducting method, program and storage medium, they are when decoding continuously and reproducing and export a plurality of picture datas, compare with correlation technique, can shorten from the order that receive to change reproduction speed the time be carved into the time of acquisition corresponding to the moment of the reproduction of the reproduction speed that is changed and output.
According to a first aspect of the present invention, provide a kind of being used for to decode in order and reproduce the reproducer that forms a plurality of picture datas that reproduce data, this equipment comprises: reproduction of storage; Decoder is used for picture data is decoded, and writes decoded result in reproduction of storage, and reproduces and decoded result that output is read from reproduction of storage; And treatment circuit, be used to carry out decoding scheduling, so that determine to make the order of decoder by the predetermined unit decoded picture data of a plurality of picture datas, to select to want processed picture data by the determined order of decoding scheduling, according to specified reproduction speed, determine whether to decode selected picture data or reproduction and output decoder result, and decoding and reproduction and the output of controlling decoder based on this judgement.
Treatment circuit is carried out decoding scheduling, so that determine to make the order of decoder by the predetermined unit decoded picture data of a plurality of picture datas.In addition, treatment circuit selects to want processed picture data with by the determined order of decoding scheduling.Treatment circuit is then according to specified reproduction speed, determine whether to decode selected picture data or reproduction and export this decoded result, and judges decoding and the reproduction and the output of control decoder based on this.
According to a second aspect of the present invention, a kind of data handling system is provided, this system comprises: data processing equipment is used to export a plurality of picture datas of formation reproduction data to reproducer; And reproducer, being used for decoding continuously and reproducing from a plurality of picture datas of data processing equipment input, this reproducer comprises: input store is used to store the picture data from the data processing equipment input; Reproduction of storage; Decoder is decoded to the picture data that reads from input store, writes decoded result in reproduction of storage, and reproduces and decoded result that output is read from reproduction of storage; And treatment circuit, be used to carry out decoding scheduling, so that determining to make decoder is the order of unit decoded picture data with predetermined a plurality of picture datas, to select to want processed picture data by the determined order of decoding scheduling, according to specified reproduction speed, determine whether to decode selected picture data or reproduction or output decoder result, and based on that definite decoding and reproduction and output of controlling decoder.
According to a third aspect of the present invention, provide a kind of being used for to decode continuously and reproduce the reproducting method that forms a plurality of picture datas that reproduce data, this method comprises: first step, carry out decoding scheduling, so that determine that with predetermined a plurality of picture datas be the order of unit decoded picture data; Second step is based on selecting to want processed picture data by the determined order of the decoding scheduling in first step; Third step is according to specified reproduction speed, determine whether the picture data or reproduction and the output decoder result that decode and select in second step; And the 4th step, based on the reproduction and the output of the determining of third step, control decoding and decoded result.
According to a fourth aspect of the present invention, a kind of reproducting method is provided, this method comprises: first step is used for forming a plurality of picture datas of reproduction data to reproducer from data processing equipment output; Second step makes reproducer carry out decoding scheduling, so that determine that with predetermined a plurality of picture datas be unit decoding order from the picture data of data processing equipment input in first step; Third step is based on select to want processed picture data by the determined order of the decoding scheduling of carrying out in second step; The 4th step is according to specified reproduction speed, determine whether the picture data or reproduction and the output decoder result that decode and select at third step; And the 5th step, based on the reproduction and the output of the determining of the 4th step, control decoding and decoded result.
According to a fifth aspect of the present invention, provide a kind of by decoding continuously and reproducing the program of the reproducer execution that forms a plurality of picture datas that reproduce data, this program comprises: first routine, carry out decoding scheduling, so that determine that with predetermined a plurality of picture datas be the order of unit decoded picture data; Second routine is to select to want processed picture data by the determined order of the decoding scheduling in first routine; The 3rd routine is according to specified reproduction speed, picture data or the reproduction selected in second routine and export these decoded results determine whether to decode; And the 4th routine, based on the reproduction and the output of the determining of the 3rd routine, control decoding and decoded result.
According to a sixth aspect of the present invention, a kind of stored program storage medium is provided, this program is by decoding continuously and reproducing the reproducer that forms a plurality of picture datas that reproduce data and carry out, this program comprises: first routine, carry out decoding scheduling, so that determine that with predetermined a plurality of picture datas be the order of unit decoded picture data; Second routine is to select to want processed picture data by the determined order of the decoding scheduling in first routine; The 3rd routine is according to specified reproduction speed, picture data or the reproduction selected in second routine and export these decoded results determine whether to decode; And the 4th routine, based on the reproduction and the output of the determining of the 3rd routine, control decoding and decoded result.
According to a seventh aspect of the present invention, a kind of data processing equipment is provided, this equipment comprises: storage medium, storage forms a plurality of picture datas that reproduce data; Reading device is used for reading picture data from storage medium; Input store is used to store the picture data that is read by reading device; Reproduction of storage; Decoder is used for the picture data that reads from input store is decoded, and writes decoded result in reproduction of storage, and reproduces and decoded result that output is read from reproduction of storage; And treatment circuit, be used to carry out decoding scheduling, so that determining to make decoder is the order of unit decoded picture data with predetermined a plurality of picture datas, to select to want processed picture data by the determined order of decoding scheduling, according to specified reproduction speed, determine whether to decode selected picture data or reproduction or export these decoded results, and determine the decoding of control decoder and the reproduction and the output of decoder based on that.
According to the present invention, such reproducer, data handling system, reproducting method, program and storage medium might be provided, they are being decoded continuously and are reproducing under the situation of a plurality of picture datas, compare with correlation technique, can shorten from the order that receive to change reproduction speed the time be carved into the time of acquisition corresponding to the moment of the reproduction of the reproduction speed that is changed and output.
Description of drawings
According to the description of the preferred embodiment that provides below with reference to accompanying drawing, these and other purpose of the present invention and feature will become clearer, wherein:
Fig. 1 is the view according to the configured in one piece of the data handling system of first embodiment of the invention;
Fig. 2 is that be used to illustrate will be by the view of the reproduction data ENC of data handling system decoding shown in Figure 1;
Fig. 3 is reproducing along forward direction under the situation of reproduction data ENC shown in Figure 2, and the decoding of being undertaken by decoder 34_1,34_2 and 34_3, reproduction of storage 36_1 are to the store status of 36_3 and the view that reproduces and export;
Fig. 4 is reproducing along forward direction under the situation of reproduction data ENC shown in Figure 2, and the decoding of being undertaken by decoder 34_1,34_2 and 34_3, reproduction of storage 36_1 are to the store status of 36_3 and reproduce and the view of following Fig. 3 of output;
Fig. 5 is the flow chart of example that is used to illustrate the integrated operation of data handling system shown in Figure 1;
Fig. 6 is the then flow chart of Fig. 5 of example that is used to illustrate the integrated operation of data handling system shown in Figure 1;
Fig. 7 is the then flow chart of Fig. 6 of example that is used to illustrate the integrated operation of data handling system shown in Figure 1;
Fig. 8 is a view, is used for the operation example of explanation at reproducer when carrying out the reproduction of forward direction (FWD) 1X speed as shown in Figure 3 and Figure 4, under the situation of the order modification reproduction speed that reproduces with the reproduction of 1.5X speed, the reproduction of 3X speed and 1X speed;
Fig. 9 is the then view of Fig. 8, be used for explanation when carrying out forward direction (FWD) 1X speed as shown in Figure 3 and Figure 4 and reproduce, reproducing with 1.5X speed, 3X speed is reproduced and the situation of the order modification reproduction speed that 1X speed is reproduced under the operation example of reproducer;
Figure 10 is the view according to the configured in one piece of the data handling system of second embodiment of the invention;
Figure 11 is a view, is used to illustrate the operation that data handling system wherein shown in Figure 10 is reproduced reproduction data ENC with reverse (REV) direction;
Figure 12 is used to illustrate the operation that data handling system wherein shown in Figure 10 is reproduced reproduction data ENC with reverse (REV) direction for following the view of Figure 11;
Figure 13 is a view, is used for illustrating the data handling system shown in Figure 10, and the 1.5X velocity reversal reproduces to change to, the 3X velocity reversal reproduces and the situation of the order modification reproduction speed that the 1X velocity reversal reproduces from 1X velocity reversal reproduction shown in Figure 11;
Figure 14 is for following the view of Figure 13, be used for illustrating the data handling system shown in Figure 10, the 1.5X velocity reversal reproduces to change to, the 3X velocity reversal reproduces and the situation of the order modification reproduction speed that the 1X velocity reversal reproduces from 1X velocity reversal reproduction shown in Figure 11;
Figure 15 is the view according to the configured in one piece of the data handling system of third embodiment of the invention;
Figure 16 is the view that is used to illustrate scheduler buffer shown in Figure 15;
Figure 17 is the view that is used to illustrate the form of picture properties data PP;
Figure 18 is a view, is used for illustrating at reproducer shown in Figure 15, exports continuously from 1X speed and be rendered under the situation of order of 2X rapid change and the order of 3X rapid change, and the state among the scheduler buffer 45_1 changes;
Figure 19 is a view, is used for illustrating at reproducer shown in Figure 15, exports continuously from 3X speed and be rendered under the situation of order of 2X rapid change and the order of 1X rapid change, and the state among the scheduler buffer 45_1 changes;
Figure 20 is the flow chart that is used to illustrate the operation example of data handling system shown in Figure 15;
Figure 21 is the then flow chart of Figure 20 that is used to illustrate the operation example of data handling system shown in Figure 15;
Figure 22 is the then flow chart of Figure 21 that is used to illustrate the operation example of data handling system shown in Figure 15; And
Figure 23 is the then flow chart of Figure 22 that is used to illustrate the operation example of data handling system shown in Figure 15.
Embodiment
Below, with the data handling system of describing according to the embodiment of the invention.
＜the first embodiment 〉
In this embodiment, showing wherein, reproducer has the situation of a plurality of decoders.
Fig. 1 is the view according to the configured in one piece of the data handling system 1 of one embodiment of the invention.As shown in Figure 1, data handling system 1 for example has computer 2 and reproducer 4.
[computer 2]
As shown in Figure 1, computer 2 has HDD12, bridger 14, memory 16, bridger 18, operating equipment 19 and CPU20.For example, the HDD12 storage is according to the reproduction data ENC of MPEG scheme coding.As shown in Figure 2, reproduce data ENC by forming at a plurality of GOP of reproducer 4 place's continuous decodings (picture group).In example shown in Figure 2, decode with GOP (N-1), (N), (N+1), (N+2) and order (N+3).Each GOP is made up of I, P and B picture data (frame data).In addition, each GOP comprises single I picture data.In current embodiment, for example, use so-called " the long GOP " that in GOP, have a large amount of relatively picture datas.It is also noted that: in the accompanying drawing of this application, do not provide any symbol in upper left to the picture data that belongs to GOP (N-1), provide asterisk in upper left to the picture data that belongs to GOP (N), provide "+" in upper left to the picture data that belongs to GOP (N+1), provide "-" in upper left to the picture data that belongs to GOP (N+2), and provide "/" to the picture data that belongs to GOP (N+3) in upper left.In addition, the numeral that in the accompanying drawings, is attached to the right side, bottom of " I ", " P " and " B " illustrates the order of the reproduced and output of the decoded result of picture data wherein.
The I picture data is the picture data of interior (frame in) coded image, and is independent of other picture data and encodes.In addition, the P picture data is the picture data along the frame of forward direction predictability ground coding, and with reference to decoding at the I or the P picture data that are positioned at the past (previous display order) aspect the time.It is also noted that " I and P picture data " also is called as " anchor (anchor) picture data ".In addition, the B picture data is the picture data at the frame of both direction predictability coding, and with reference to before being positioned at aspect the time or afterwards (preceding or after display order) I or the P picture data in decode.It is also noted that: the reading speed of HDD12 is slower than the maximum reproduction speed of reproducer 4.
Bridger 14 provides the expanded function of bridger 18 and has had pci expansion slot or IDE (integrated drive electronic circuit) groove etc.Bridger 14 has and bridger 18 identical functions basically, but has the bandwidth narrower than bridger 18, and compares with the equipment that is connected to bridger 18, be connected to bridger 14 equipment have a lower access speed.
Memory 16 for example is a semiconductor memory, and storage is used for program and the data that CPU20 handles.Operating equipment 19 is keyboard, mouse or other operating means, and output corresponding to the operation signal of user operation to CPU20.Operating equipment 19 receives the operation that is used to specify the reproduction point that reproduces data ENC, be used to send the operation of reproduction initiation command of specified reproduction point and the transition command operation of operating according to the user based on the function screen that does not show, and exports the operation signal that shows this operation to CPU20.Bridger 18 links to each other with CPU20 with bridger 14, memory 16, pci bus 6, and translation data and transmit this data by CPU20 address bus and data/address bus.
For example, CPU20 carries out the program that reads from memory 16, so that the operation of control computer 2.When CPU20 receives indication when being used to specify the operation signal of the operation of reproducing point from operating equipment 19, it reads the GOP of the picture data that comprises specified reproduction point from HDD12, and by bridger 18 and pci bus 6 GOP is outputed to reproducer 4.In addition, when CPU20 receives indication when reproducing the operation signal of initiation command from operating equipment 19, it comprises that by bridger 18 and pci bus 6 outputs the reproduction initiation command of specified reproduction point is to reproducer 4.In addition, when CPU20 when operating equipment 19 receives the operation signal of indication rapid change order, it changes by bridger 18 and pci bus 6 output speeds orders reproducer 4.In addition, when CPU20 when operating equipment 19 receives the operation signal of indication transition command operation, it by bridger 18 and pci bus 6 these transition orders of output to reproducer 4.In addition, CPU20 outputs to reproducer with GOP, so as will be in the middle of the GOP in reproducing data ENC, store in the input store 32 of reproducer at the GOP of the previous position of such GOP and by the GOP of display order position after such GOP by display order, wherein said such GOP is included in the picture data of the reproduction point in the reproducer 4.
[reproducer 4]
As shown in Figure 1, for example, reproducer 4 have PCI bridger 30, input store 32, decoder 34_1 to 34_3, reproduction of storage 36_1 to 36_3, selector 38, control storage 40, CPU42 and control bus 46.It is also noted that, control storage 40 storing predetermined programs (program of the present invention), and also CPU42 reads and carries out this program to carry out following processing.Preset program can be stored in semiconductor memory or other control storage 40, perhaps can be stored on HDD, CD or other storage medium.
PCI bridger 30 has memory, is used for buffer memory via GOP and the order of pci bus 6 from computer 2 inputs.In addition, bridger 18 has DYNAMIC MEMORY ACCESS (DMA) transfer function.
" input store 32 ":
Input store 32 is SDRAM or other semiconductor memory, and temporary transient storage is via the GOP of PCI bridger 30 inputs.
" decoder 34_1,34_2,34_3 ":
Decoder 34_1 is according to the decodes commands (control of CPU42) from the CPU42 input, receive the reproduction data ENC that reads from input store 32 as input by PCI bridger 30, according to mpeg system this data of decoding, and the result is written among the reproduction of storage 36_1.Specifically, decoder 34_1 under the control of CPU42, the I picture data that decoding is read from input store 32 and need not be with reference to the decoded result of other picture data.In addition, decoder 34_1 is under the control of CPU42, by with reference to aspect the time, be in the past and decoded result has been stored in the I among the corresponding reproduction of storage 36_1 or the decoded result of P picture data, the P picture data that decoding is read from input store 32.
Fig. 3 and Fig. 4 illustrate the decoding of being carried out by decoder 34_1,34_2 and 34_3, memory state and product and the output of reproduction of storage 36_1 to 363 when forward direction reproduces reproduction data ENC with 1X speed.In Fig. 3, Fig. 4 and the respective drawings that illustrates later, the memory bank zone " 0 " to " 7 " that is illustrated as interrelating with decoder 34_1 is the memory bank zone that defines in reproduction of storage 36_1, the memory bank zone " 0 " to " 7 " that is illustrated as interrelating with decoder 34_2 is the memory bank zone that defines in reproduction of storage 36_2, and the memory bank zone " 0 " to " 7 " that is illustrated as interrelating with decoder 34_3 is the memory bank zone of definition in reproduction of storage 363.In addition, " out0 ", " out1 " and " out2 " expression output to the decoded result of selector 38 from decoder 34_1,34_2 and 34_3.In addition, bottommost " reproducing and output " illustrates reproduction and output from selector 38.In addition, in Fig. 3, Fig. 4 and the respective drawings that illustrates later, be illustrated as representing the decoding undertaken by decoder 34_1,34_2 and 34_3 by the part that thick line surrounds.
As shown in Figure 3 and Figure 4, according to from the decodes commands of CPU42, along under the situation of the reproduction direction successively reproducing of CPU42 appointment, decoder 34_1 keeps not being used further in reproduction of storage 36_1 reproducing and the storage of the decoded result of the I that exports and P picture data.For example, though decoder 34_1 after the reproduction of finishing GOP (N-1) and output, also keep I2, P5, P8, P11, P14, *The decoded result of I2.For this reason, as described below, when the rapid change order occurring, by use keeping being stored in the decoded result among the reproduction of storage 36_1, can be just after rapid change, in the processing time that is used for a picture, carry out and reproduce and export.That is to say that when the rapid change order occurring, decoder 34_1 can use before this rapid change order, be stored in I among the reproduction of storage 36_1 already and the decoded result of P picture data is used for reproducing and output.Specifically, for I and P picture data, decoder 34_1 according to from the decodes commands of CPU42, after the rapid change order, read and reproduce and export the I that is stored in already among the reproduction of storage 36_1 and the decoded result of P picture data.In addition, for the B picture data, decoder 34_1 is according to from the decodes commands of CPU42, carry out decoding with reference to being stored in the I of anchor picture data among the reproduction of storage 36_1, that form this B picture data and the decoded result of P picture data already the rapid change order after, and according to from the display command reproduction of CPU42 with export this decoded result.
In addition, as shown in Figure 3, decoder 34_1 is according to from the decodes commands of CPU42, at I and the P picture data of decoding in just decoded GOP before the B picture data, and decoded result is written among the reproduction of storage 36_1.
Decoder 34_2 has the configuration identical with decoder 34_1 with 34_3.They are according to the MPEG scheme decoding view data via 30 inputs of PCI bridger, and the result is written among their corresponding reproduction of storage 36_2 and the 36_3.
Below, explanation is written to method among reproduction of storage 36_1,36_2 and the 36_3 by decoder 34_1,34_2 and 34_3 with decoded result.As shown in Figure 3 and Figure 4, reproduction of storage 36_1,36_2 and 36_3 each all have eight memory bank zones " 0 " and arrive " 7 ".In this embodiment, as shown in Figure 3 and Figure 4, in the middle of eight memory bank zones that provide at each reproduction of storage 36_1,36_2 and 36_3 place, six memory bank zones " 0 " to " 6 " are regularly with acting on the storage area of the decoded result of storing I and P picture data exclusively, and two memory bank zones " 6 " and " 7 " are regularly with the storage area that acts on the decoded result of storing the B picture data.That is to say that reproduction of storage 36_1 is stored in corresponding decoder 34_1,34_2 and all I of 34_3 place decoding and the decoded result of P picture data simultaneously to 36_3.Keep this storage till the decoded result with the I of next GOP that will be decoded and P picture data writes decoder.
When decoding reproduction data ENC shown in Figure 2, for example as shown in Figure 3, decoder 34_1 is written in I2, P5, P8, P11 and the P14 picture data among the GOP (N-1) in the memory bank zone " 0 " to " 5 " of reproduction of storage 36_1, and the I2 picture data in GOP (N).In addition, for example as shown in Figure 3 and Figure 4, decoder 34_2 writes I2, P5, P8, P11 and the P14 picture data among the GOP (N) in the memory bank zone " 0 " to " 5 " of reproduction of storage 36_2, and the I2 picture data among the GOP (N+1).In addition, for example as shown in Figure 4, decoder 343 writes I2, P5, P8, P11 and the P14 picture data among the GOP (N+1) in the memory bank zone " 0 " to " 5 " of reproduction of storage 363, and the I2 picture data in GOP (N+2).
In addition, when B picture data in GOP (N-1) of decoder 34_1 decoding, it arrives the I in " 5 " and the decoded result of P picture data with reference to the memory bank zone " 0 " that is stored in reproduction of storage 36_1.In addition, when B picture data in GOP (N) of decoder 34_2 decoding, it arrives the I in " 5 " and the decoded result of P picture data with reference to the memory bank zone " 0 " that is stored in reproduction of storage 36_2.In addition, when B picture data in GOP (N+I) of decoder 34_3 decoding, it arrives the I in " 5 " and the decoded result of P picture data with reference to the memory bank zone " 0 " that is stored in reproduction of storage 36_3.It is also noted that, decoder 34_1,34_2 and 34_3 are used in that B picture data decoded result of the B picture data of three pictures afterwards, override reproduction of storage 36_1 memory bank " 6 " and " 7 " decoded result that stored, that B picture data to 36_3 continuously.For this reason, do not need to provide memory bank zone, and can make the size decreases of reproduction of storage 36_1 to 36_3 corresponding to all the B picture datas in GOP.
" selector 38 ":
Selector 38 switches and reproduces selectively and export from reproduction of storage 36_1,36_2 and 36_3 picture data that read, after decoding as picture data S38 under the control of CPU42.
“CPU42”：
CPU42 is that each GOP that is stored in the input store 32 carries out decoding scheduling, so that be included in picture data among that GOP according to the reproduction speed decoding of appointment.Specifically, CPU42 is chosen in the picture data that is included among the GOP, will carries out the decoded pictures data to specify reproduction speed, be identified for decoding in selected picture data a picture data (for example, the I picture data) timing and the being used to order of selected picture data of decoding, and generate the decoding scheduling result who shows this result.CPU42 is based on the reproduction speed of above-mentioned decoding scheduling result and appointment, is unit each picture data that determines whether to decode with the picture data.When determining to decode to picture data, it sends the decodes commands that is used for that picture data and makes decoder 34_1,34_2 and the following decoding processing of 34_3 execution.In addition, CPU42 is that unit determines whether to reproduce and export each picture data based on the reproduction speed of above-mentioned decoding scheduling result and appointment with the picture data.When determining reproduction and exporting this picture data, it sends the display command of that picture data.It is also noted that in this embodiment, even when having specified certain reproduction speed, CPU42 also has precedence over the B picture data and decode I and P picture data in each GOP.Therefore, after receiving the rapid change order, reproduction after the rapid change and output can obtain I, P and any one decoded result of B picture data in the time of a picture data that is used for decoding, that is to say, can begin reproduction and output after change speed at short notice.
For example, CPU42 reads picture data from input store 32, so that belong to the I of identical GOP and P picture data and with reference to the B picture data of the decoded result of this I and P picture data by identical decoder 34_1,34_2 and 34_3 decoding.For example, CPU42 reads out in I and P picture data among the GOP (N-1) by PCI bridger 30 from input store 32, and by B picture data that decode with reference to the decoded result of this I and P picture data, in GOP (N), and they are outputed to decoder 34_1.Here, in current embodiment, with reference to (open) GOP who opens, it is decoded with reference to the I among the GOP with different B picture data and the decoded result of P picture data.Specifically, for example, B0 in GOP shown in Figure 2 (N) and B1 picture data are to decode with reference to the decoded result of I in GOP (N-1) and P picture data.Therefore, CPU42 will output to decoder 34_1 at B0 among the GOP (N) and B1 picture data.
In addition, for example, CPU42 reads in I and P picture data among the GOP (N) by PCI bridger 30 from input store 32, and by B picture data that decode with reference to the decoded result of this I and P picture data, in GOP (N+1), and they are outputed to decoder 34_2.In addition, for example, CPU42 reads in I and P picture data among the GOP (N+1) by PCI bridger 30 from input store 32, and by B picture data that decode with reference to the decoded result of this I and P picture data, in GOP (N+2), and they are outputed to decoder 34_3.
When CPU42 for example receives when reproducing initiation command from the CPU20 of computer 2, CPU42 makes decoder 34_1,34_2 and 34_3 decode to a plurality of GOP that comprise this reproduction point.At this moment wait, the decoding of the B picture data that CPU42 control is undertaken by decoder 34_1,34_2 and 34_3, reading and the selection of selector 38 from reproduction of storage 36_1,36_2 and 36_3 to selector 38 are so that carry out the reproduction and the output of data from reproducing the some beginning along assigned direction, with command speed.
Below, will the operation example of data handling system 1 shown in Figure 1 be described.
[first operation example]
Below, with explanation from computer 2 specify the picture data that is used to reproduce the time be carved into the example of operation that reproducer 4 reproduces and export the moment of this picture data.Fig. 5 and Fig. 6 are the flow charts that is used to illustrate this operation example.
Step ST1:
The CPU20 of computer 2 judges whether to have imported the operation signal of indicating the operation that is used to specify the reproduction point during reproducing data ENC from operating equipment 19.Just proceed to step ST2 when having specified when judging, and when the processing of judging when not specifying with regard to repeating step ST1.
Step ST2:
The CPU20 of computer 2 reads the GOP of the picture data of the reproduction point that is included in step ST1 appointment from HDD12, and GOP on every side or three (a plurality of) GOP altogether.
Step ST3:
The CPU20 of computer 2 will output to reproducer 4 at a plurality of GOP that step ST2 reads by bridger 18 and pci bus 6.The CPU42 of reproducer 4 will be written to the input store 32 from the GOP of computer 2 inputs by PCI bridger 30.
Step ST4:
The CPU20 of computer 2 finishes the CPU42 that notice outputs to reproducer 4 with transmission.This transmission is finished notice and is illustrated in the identification data of step ST3 from computer 2 outputs (transmission) to the GOP of reproducer 4, the address that has write GOP in input store 32, and the size of the data among the GOP.In addition, transmission is finished notice and is illustrated in the identification data of each picture data among the GOP of output, has wherein write the address of picture data and the size of picture data in input store 32.CPU42 writes transmission and finishes notice in control storage 40.
Step ST5:
The CPU42 of reproducer 4 will be ready to complete the CPU20 that notice outputs to computer 2 after the processing of completing steps ST4.
Step ST6:
The CPU20 of computer 2 judges whether to have imported the operation signal that indication specifies the reproduction initiation command of reproduction point to operate from operating equipment 19.Just proceed to step ST7 when having imported this order when judging, and when the processing of judging when also not importing with regard to repeating step ST6.
Step ST7:
When judging when having imported this order, the CPU20 of computer 2 specifies the reproduction initiation command that reproduces point to the CPU42 of reproducer 4 output.
Step ST8:
The CPU42 operation dispatching of reproducer 4, so that according to mutual referring-to relation between picture data with reproduce direction, determine being stored in the input store 32, comprising the order of decoding by the picture data in the GOP of the picture data of the indicated reproduction point of the reproduction initiation command of step ST7 input.
Step ST9:
The CPU42 of reproducer 4 is based on the decoding scheduling result of step ST8, specify the picture data be used to handle continuously.
Step ST10:
The CPU42 of reproducer 4 judges whether specified reproduction speed is 1X speed or more.If be judged as 1X speed or more, then proceed to step ST11, and if on the contrary, then proceed to step ST12.
Step ST11:
The CPU42 of reproducer 4 is based on specified reproduction speed determine whether to decode picture data in step ST10 appointment.
Step ST12:
The CPU42 of reproducer 4 determines regularly it whether is to be used to reproduce and the timing of the renewal of exporting based on specified reproduction speed.
Step ST13:
When the CPU42 of reproducer 4 concludes this at step ST12 place regularly is that it proceeds to step ST14 when upgrading regularly.
Step ST14:
When definite decoding in step ST11 or when judging that in step ST13 renewal regularly, the CPU42 of reproducer 4 exports the decodes commands of the picture data of appointment in step ST9 to any one decoder 34_1,34_2 and 34_3.It is also noted that, when appointment in step ST9 the decoded result of picture data when being stored among reproduction of storage 36_1,36_2 and the 36_3, not output decoder order of CPU42.
Step ST15:
Decoder 34_1, the 34_2 of reproducer 4 and 34_3 read by the indicated picture data of decodes commands in step ST14 input, and decoded result is written to reproduction of storage 36_1 in 36_3.
Step ST16:
The CPU42 of reproducer 4 determines whether to reproduce and exports the decoded result at the picture data of step ST9 appointment based on specified reproduction speed.
Step ST17:
When determining to reproduce at step ST16 and exporting, the CPU42 of reproducer 4 outputs to corresponding decoder 34_1,34_2 and 34_3 with the display command of assigned picture data.
Step ST18:
Decoder 34_1, the 34_2 of reproducer 4 and 34_3 based at the display command of step ST17 input, from reproduction of storage 36_1,36_2 and 36_3, read decoded result by the picture data of display command appointment, and they are outputed to selector 38.Thus, reproduce and export the decoded result of specified picture data.
Step ST19:
The CPU20 of computer 2 judges whether to have imported from operating equipment 19 operation signal of indication transition command operation.When judgement has been imported, proceed to step ST20, and if do not have, then proceed to step ST21.
Step ST20:
The CPU of computer 2 outputs to transition order (reproducing the direction switching command) CPU42 of reproducer 4.After the transition order occurring, CPU20 and CPU42 carry out based on the reproduction direction of switching and handle.Reproducer 4 is the processing to ST19 of unit, execution in step ST10 with the picture data.
Step ST21:
CPU20 and CPU42 judge that whether the picture data handled in the ST19 at step ST10 is the final picture data in GOP.If judging it is the final picture data, then they proceed to step ST22, and if not, then they turn back to the processing that step ST9 and execution are used for next picture data.
Step ST22:
CPU20 and CPU42 judge that whether handled picture data is the last GOP among the reproduction data ENC under it.If judging it is last GOP, then finish this processing, and if not, then they proceed to step ST23.
Step ST23:
The CPU20 of computer 2 reads next GOP according to reproducing direction from HDD12.
Step ST24:
The CPU20 of computer 2 will output to reproducer 4 at a plurality of GOP that step ST23 reads by bridger 18 and pci bus 6.The CPU42 of reproducer 4 will be written to the input store 32 from the GOP of computer 2 inputs by PCI bridger 30.
Step ST25:
The CPU20 of computer 2 will finish the CPU42 that notice outputs to reproducer 4 in the transmission of the GOP of step ST24 output.CPU42 writes transmission and finishes notice in control storage 40.
Step ST26:
The CPU42 of reproducer 4 will be ready to complete the CPU20 that notice outputs to computer 2 after the processing of completing steps ST25.
Step ST27:
For example, the CPU42 of reproducer 4 judges and to comprise whether the scheduling of GOP of reproducing the picture data of point according to the next one that reproduces direction has finished (that is to say whether need scheduling).When judging that scheduling is not finished, it proceeds to step ST8, and when judging that it has been finished, it proceeds to step ST9.
[second operation example]
In this operation example in detail, the decoding of the step ST15 shown in Fig. 6 will be described.For example, as using as described in Fig. 3 and Fig. 4, the CPU42 of reproducer 4 based on above-mentioned scheduling result, read the included picture data of GOP that is stored in the input store 32, and above-mentioned data are outputed to decoder 34_1,34_2 and 34_3.In addition, as mentioned above, decoder 34_1,34_2 and 34_3 decode to it, and write decoded result in reproduction of storage 36_1,36_2 and 36_3.
As shown in Figure 3 and Figure 4, reproducer 4 is at I and the P picture data of decoding in GOP in decoder 34_1,34_2 and 34_3 at first before the B picture data, and the result is written in the fixed storage body region among reproduction of storage 36_1,36_2 and the 36_3.Thus, if after this writes, be useful on the time of a picture data of decoding (frame), then might reproduce and export any picture data in just processed GOP.That is to say, as illustrated after a while, when decoding and reproducing and export when occurring being used to change the order of reproduction speed in the middle of the process of the picture data in GOP, might after this rapid change order, be used to decode in time of 1 picture data, use Fig. 6 and step ST9 shown in Figure 7 processing, reproduce and export picture data according to the reproduction speed that is changed to ST18.For example, when decoding and reproduce and when exporting B9 picture data among the GOP shown in Figure 3 (N-1), the P8 in GOP (N-1) and the decoded result of P11 picture data are essential.In addition, the decoding of P8 picture data needs the decoded result of P5 picture data, and the decoding of P5 picture data needs the decoded result of I2 picture data.Therefore, decoding B9 picture data needs the decoded result of I2, P5, P8 and P11 picture data.As shown in Figure 3, according to reproducer 4, by storage I and P picture data in reproduction of storage 36_1, if decoder 34_1 receives the B9 picture data of GOP (N-1), then decoder 34_1 can utilize the memory bank zone " 2 " that is stored in reproduction of storage 36_1 already and P8 and the P11 picture data in " 3 ", with decoding immediately and reproduce and the B9 picture data of output GOP (N-1).Thus, it is possible changing reproduction speed and have no time to lag behind.
[the 3rd operation example]
Below, will illustrate when as shown in Figure 3 and Figure 4, the operation example of reproducer 4 during when carrying out forward direction (FWD) 1X speed and reproducing and with 1.5X speed is reproduced, 3X speed is reproduced and 1X speed is reproduced order modification reproduction speed.Fig. 8 and Fig. 9 are the views that is used to illustrate this operation example.As shown in Figure 8, when decoder 342 is reproducing and is exporting the decoded result of B1 picture data of GOP (N), if the CPU42 by reproducer 4 has received the order that is used to change to 1.5X speed, then CPU42 proceeds Fig. 6 and step ST9 shown in Figure 7 to ST18, with before the decoding of finishing GOP (N) and reproduction and output, carry out decoding and reproduction and output corresponding to 1.5X speed.Thus, might transform to 1.5X speed from the B4 picture data of reproduction and output GOP (N).That is to say, if reproducer 4 does not have to reproduce and B0, B3, B6 and the B9 picture data of output in the decoding scheduling result who decodes with the reproduction of 1X speed, then reproducer 4 can be realized 1.5X speed, so, can realize 1.5X speed simply by becoming effectively regularly from the order that is used to change to 1.5X speed, make can picture data reproduced and output aspect the time not invalid or it is compressed.At this moment wait, reproducer 4 is with the mode identical with the reproduction of 1X speed, the anchor picture data that decoding is made of I and P picture data, it is written among reproduction of storage 36_1,36_2 and the 36_3, and is becoming invalid aspect the time and carrying out the B picture data that compresses by decoder 34_1,34_2 and 34_3 decoding.
After this, as shown in Figure 9, when decoder 343 is reproducing and is exporting the decoded result of P8 picture data of GOP (N+1), if the CPU42 by reproducer 4 has received the order that changes to 3X speed, then CPU42 proceeds Fig. 6 and step ST9 shown in Figure 7 to ST18, to carry out decoding and reproduction and the output corresponding to 3X speed before the decoding of finishing GOP (N+1) and reproduction and output.Thus, might transform to 3X speed from the reproduction of the P11 picture data of GOP (N+1) and output reproduces and exports.
After this, as shown in Figure 9, when decoder 342 is reproducing and is exporting the decoded result of P14 picture data of GOP (N+2), if the CPU42 by reproducer 4 has received the order that changes to 1X speed, then CPU42 proceeds Fig. 6 and step ST9 shown in Figure 7 to ST18, begins to carry out decoding and reproduction and output corresponding to 1X speed with the P5 picture data from GOP (N+3).At this moment wait,, transform to the reproduction of 1X speed so might reproduce from 3X speed at short notice because the decoded result of the I of GOP (N+3) and P picture data is stored among the reproduction of storage 36_3.In this way, decoding order when for example reproducer 4 determines that 1X speed is reproduced in advance by decoding scheduling, when specifying (changes) reproduction speed, judgement has the validity of the picture data of decoding order shown in the decoding scheduling, and only decoding is judged as effective picture data, so can enough quick responses carry out variable speed reproducing.
As mentioned above, illustrated like that as using Fig. 6 and Fig. 7, data handling system 1 is a unit execution decoding scheduling with GOP.Whether decoding and reproducing and output when forming the picture data of GOP actually is that unit determines whether decoding based on the result of decoding scheduling and reproduction speed, with the picture data and reproduce and output is scheduled for the decoded pictures data.Therefore, according to data handling system 1, if the order of reproduction speed occurs being used to change, then might be that unit carries out decoding and reproduction and the output corresponding to the reproduction speed that is changed before the reproduction of this GOP is finished, with the picture data at the reproduction period of a GOP.Therefore, and past, might shorten from reproducer 4 receive the order that is used to change reproduction speed the time be carved into the time of in fact carrying out corresponding to the moment of the reproduction of the reproduction speed that is changed and output.
In addition, in data handling system 1, reproducer 4 was written to reproduction of storage 36_1 in the fixed storage body region of 36_3 with the decoded result of I and P picture data, and keeps it constantly before the B picture data.Therefore, reproducer 4 can reproduce and output all picture datas in just processed GOP during decoding B picture data.In addition, reproducer 4 overrides the decoded result of B picture data continuously in the storage body of reproduction of storage 36_1,36_2 and 36_3.Thus, might carry out reproduction and output at short notice, and can greatly not increase the memory capacity of reproduction of storage 36_1 to 36_3 corresponding to the reproduction speed that changes.
When picture data is high definition (HD) image or other when having the image of mass data, perhaps when adopting the long GOP of the picture data of comparing, have greater number with common GOP in each GOP, above-mentioned effect is very significant.
＜the second embodiment 〉
In this embodiment, understand that for example wherein reproducer has the situation of single decoder.Figure 10 is the view according to the configured in one piece of the data handling system 1a of one embodiment of the invention.As shown in figure 10, data handling system 1a has for example computer 2 and reproducer 4a.Computer 2 shown in Figure 10 is identical with the computer 2 of first embodiment.As shown in figure 10, reproducer 4a has for example PCI bridger 30, input store 32, decoder 34, reproduction of storage 36, control storage 40, CPU42a and control bus 46.In the configuration of reproducer 4a shown in Figure 10, distributed the parts of the reference number identical to be similar to those parts of first embodiment with Fig. 1.Reproducer 4a has single decoder 34 and reproduction of storage 36.According to this, decoding and the reproduction and the output of CPU42a control picture data.It is also noted that except the decoding of single decoder 34 and reproduction and output this point, the processing of the reproducer 4 of the processing of reproducer 4a and Fig. 5 first embodiment in Fig. 7 is identical.
Below, will illustrate that wherein data handling system 1a carries out the situation that 1X velocity reversal (REV) reproduces.Figure 11 and Figure 12 are views, are used to illustrate the operation that data handling system 1a wherein shown in Figure 10 reproduces reproduction data ENC with reverse (REV) direction.As Figure 11 and shown in Figure 12, under the situation of inverse repetition, decoder 34 at first the decode I of GOP (N+3) and the I2 picture data of P picture data and GOP (N+2), and the memory bank zone " 0 " that decoded result is written to decoder 34 arrived in " 5 ".After this, decoder 34 B13 and B12 picture data, the P5 picture data of GOP (N+2), the B10 of GOP (N+3) and the P8 picture data of B9 picture data and GOP (N+2) of GOP (N+3) of decoding continuously.Further, decoder 34 reproduce continuously and export GOP (N+3) P14, B13, B12, P11, P10, B9 ... decoded result.
Below, explanation is reproduced the situation that the 1.5X velocity reversal reproduces, the 3X velocity reversal reproduces and the 1X velocity reversal reproduces that changes to reproduction speed from 1X velocity reversal shown in Figure 11 continuously.Figure 13 and Figure 14 are the views that is used to illustrate this operation example.As shown in figure 13, when decoder 34 is reproducing with the 1X velocity reversal and is exporting the decoded result of the P5 picture data among the GOP (N+3), if the CPU42 by reproducer 4 has received the order that changes to 1.5X velocity reversal reproduction, then CPU42 proceeds Fig. 6 and step ST9 shown in Figure 7 to ST18, to carry out decoding and reproduction and the output corresponding to 1.5X speed before the decoding of finishing GOP (N+3) and reproduction and output.Thus, might transform to reproduction and the output that the 1.5X velocity reversal reproduces from the reproduction and the output of the B4 picture data the GOP (N+3).
After this, as shown in figure 14, when decoder 34 is reproducing and is exporting the decoded result of P11 picture data of GOP (N+1), if the CPU42 by reproducer 4 has received the order that changes to 3X velocity reversal reproduction, then CPU42 proceeds Fig. 6 and step ST9 shown in Figure 7 to ST18, to carry out decoding and the reproduction and the output of reproducing corresponding to the 3X velocity reversal before the decoding of finishing GOP (N+1) and reproduction and output.Thus, might transform to reproduction and the output that the 3X velocity reversal reproduces from the reproduction and the output of the P8 picture data the GOP (N+1).
After this, as shown in figure 14, when decoder 34 is reproducing and is exporting the decoded result of I2 picture data of GOP (N), if the CPU42 by reproducer 4 has received the order that changes to 1X velocity reversal reproduction, then CPU42 proceeds Fig. 6 and step ST9 shown in Figure 7 to ST18, begins to carry out decoding and the reproduction and the output of reproducing corresponding to the 1X velocity reversal with the B13 picture data from GOP (N-1).At this moment wait,, transform to 1X velocity reversal reproduction so might reproduce from the 3X velocity reversal at short notice because the decoded result of the I of GOP (N+3) and P picture data is stored in the reproduction of storage 36.By this way, for example, in reproducer 4a, determine the decoding order that the 1X velocity reversal reproduces by decoding scheduling in advance.When specifying (change) inverse repetition speed, judge the validity of picture data with the decoding order shown in the decoding scheduling.Only decoding is judged as effective picture data.Thus, also be possible even when inverse repetition, carry out variable speed reproducing with good response.Equally, utilize this data handling system 1a, can obtain to be similar to the effect of the data handling system 1 among first embodiment.
＜the three embodiment 〉
In this embodiment, will the following situation of the system that illustrates be described in first embodiment, wherein scheduling and storage indicate whether picture data is carried out decoded pictures attribute data PP in scheduler buffer, and carry out decoding based on these data.Figure 15 is the view according to the configured in one piece of the data handling system 1b of one embodiment of the invention.As shown in figure 15, data handling system 1b has for example computer 2 and reproducer 4b.Computer 2 shown in Figure 15 is identical with the computer 2 of first embodiment.As shown in figure 15, reproducer 4b has for example PCI bridger 30, input store 32, decoder 34, reproduction of storage 36, control storage 40, CPU42b, scheduler buffer 45 and control bus 46.In the configuration of reproducer 4b shown in Figure 15, distributed the parts of the reference number identical to be similar to those parts in first embodiment with Fig. 1.
Figure 16 is the view that is used to illustrate scheduler buffer shown in Figure 15 45.As shown in figure 16, scheduler buffer 45 has scheduler buffer 45_1 to 45_3.Scheduler buffer 45_1 is used to manage and will carries out the decoded pictures data at decoder 34_1 place shown in Figure 15, and allows to read out in the decoding order picture properties data PP of the picture data of decoder 34_1 place scheduling when 1X speed is reproduced.Scheduler buffer 45_2 is used to manage and will carries out the decoded pictures data at decoder 34_2 place shown in Figure 15, and allows to read out in the decoding order picture properties data PP of the picture data of decoder 34_2 place scheduling when 1X speed is reproduced.Scheduler buffer 45_3 is used to manage and will carries out the decoded pictures data at decoder 34_3 place shown in Figure 15, and allows to read out in the decoding order picture properties data PP of the picture data of decoder 34_3 place scheduling when 1X speed is reproduced.
Figure 17 is the view that is used to illustrate the form of picture properties data PP.As shown in figure 17, picture properties data PP comprises the pointer data (cur_p) of the reproduction of storage 36_1 that points to the decoded result write the respective picture data memory bank in the 36_3, point to storage and be used for the pointer data (fore_p) of the reproduction of storage 36_1 of forward prediction picture (picture data) that it is decoded to the memory bank of 36_3, point to storage and be used for the pointer data (back_p) of the reproduction of storage 36_1 of back forecast picture (picture data) that it is decoded to the memory bank of 36_3, the number of just decoded GOP, be used to begin the time (" time ") of decoding (reproduction), and the validity flag data (" valid ") that the validity of decoding is shown.
Figure 18 is a view, is used to illustrate that being used for reproducing from 1X speed the state that changes to the order of 2X speed and change to scheduler buffer 45_1 under the situation of order of 3X speed in output continuously changes.Shown in Figure 18 A, the CPU42b of reproducer 4b is set to the validity flag data " valid " that are stored in all the picture properties data among the scheduler buffer 45_1 effectively in it be provided with at first.After this, when CPU42b operates when having received the order that changes to 2X speed according to the user, shown in Figure 18 B, it is every one, and the validity flag data " valid " of the picture properties data PP that will dispatch after the picture properties data PP of just reproduced picture data are set to effectively.After this, when CPU42b operates when having received the order that changes to 3X speed according to the user, shown in Figure 18 C, it is after per two data, and it is invalid that the validity flag data " valid " of the picture properties data PP that will dispatch after the picture properties data PP of just reproduced picture data are set to.
Figure 19 is a view, is used to illustrate that being used for reproducing from 3X speed the state that changes to the order of 2X speed and change to scheduler buffer 45_1 under the situation of order of 1X speed in output continuously changes.Shown in Figure 19 A, when reproducing,, the validity flag data " valid " that are stored in the picture properties data PP among the scheduler buffer 45_1 are set to effectively every two data with 3X speed.After this, when CPU42b operates when having received the order that changes to 2X speed according to the user, shown in Figure 19 B, it is every data, and the validity flag data " valid " of the picture properties data PP that will dispatch after the picture properties data PP of just reproduced picture data are set to effectively.After this, when CPU42b operates when having received the order of 1X rapid change according to the user, shown in Figure 19 C, all validity flag data " valid " of the picture properties data PP that it will be dispatched after the picture properties data PP of just reproduced picture data are set to effectively.
Below, will the operation example of data handling system 1b shown in Figure 15 be described.Figure 20 is the flow chart that is used to illustrate the operation example of data handling system 1b shown in Figure 15 to Figure 23.
Step ST51:
The CPU20 of computer 2 judges whether to have imported the operation signal of indicating the operation that is used to specify the reproduction point during reproducing data ENC from operating equipment 19.Just proceed to step ST52 when having specified when judging, and when judgement is not specified with regard to the processing of repeating step ST51.
Step ST52:
The CPU20 of computer 2 reads the GOP of picture data of the reproduction point that is included in step ST51 appointment and GOP on every side from HDD12, perhaps three (a plurality of) GOP altogether.
Step ST53:
The CPU20 of computer 2 will output to reproducer 4b at a plurality of GOP that step ST52 reads by bridger 18 and pci bus 6.The CPU42 of reproducer 4b will be written to the input store 32 from the GOP of computer 2 inputs by PCI bridger 30.
Step ST54:
The CPU20 of computer 2 finishes the CPU42b that notice outputs to reproducer 4b with transmission.This transmission is finished notice and is illustrated in the identification data from computer 2 outputs (transmission) to the GOP of reproducer 4b among the step ST53, the address that has wherein write GOP in input store 32, and the size of the data among the GOP.In addition, transmission is finished notice and is illustrated in the identification data of each picture data among the GOP of output, has wherein write the address of picture data and the size of picture data in input store 32.CPU42b writes transmission and finishes notice in control storage 40.
Step ST55:
The CPU42a of reproducer 4b will be ready to complete the CPU20 that notice outputs to computer 2 after the processing of completing steps ST54.
Step ST56:
The CPU20 of computer 2 judges whether to have imported the operation signal that indication specifies the reproduction initiation command of reproduction point to operate from operating equipment 19.Just proceed to step ST57 when judging when having imported this order, and when judgement is not imported with regard to the processing of repeating step ST66.
Step ST57:
When this order had been imported in judgement, the CPU20 of computer 2 specified the reproduction initiation command that reproduces point to the CPU42b of reproducer 4b output.
Step ST58:
The decoding order of the picture data of a new GOP of the CPU42b of reproducer 4b scheduling, and write the picture properties data PP of picture data in the 45_3 at scheduler buffer 45_1 shown in Figure 16 with that scheduling sequence 16.In addition, shown in Figure 18 A, the validity flag data " valid " that CPU42b will be stored in all the picture properties data PPs of scheduler buffer 45_1 in the 45_3 are set to effectively.
Step ST59:
The CPU42b of reproducer 4b determines reproduction (decoding) time started of picture properties data in being stored in the picture properties data PP of scheduler buffer 45_1 in the 45_3, that have effective validity flag data " valid ", and is defined as the reproduction time started " time " of picture properties data PP this time.
Step ST60:
The CPU42b of reproducer 4b judges whether specified reproduction speed is 1X speed or more.If 1X speed or more then proceeds to step ST61, and if not, then proceed to step ST63.
Step ST61:
The CPU42b of reproducer 4b, according to needing (when the rapid change order etc.), based on specified reproduction speed, make in being stored in the picture properties data PP of scheduler buffer 45_1 in the 45_3, just the validity flag data " valid " of the picture properties data of all picture datas after the picture data that reproduces before are for effective.
Step ST62:
The CPU42b of reproducer 4b is when reproducing (slow motion reproduction) less than 1X speed, and the next one that calculates the picture data that just is being shown upgrades regularly.
Step ST63:
The CPU42b of reproducer 4b judges by the indicated timing of the unshowned timer that provides whether become the renewal timing of calculating in step ST62 in reproducer 4b.If, then proceed to step ST66, and if not, then proceed to step ST73.
Step ST64:
The CPU42b of reproducer 4b judges whether to have imported the order that is used to change reproduction speed.If, then proceed to step ST65, and if not, then proceed to step ST67.
Step ST65:
The CPU42b of reproducer 4b is according to the reproduction speed that changes corresponding to being used to change the order of reproduction speed, is set to the validity flag data " valid " that are stored in the picture properties data PP of scheduler buffer 45_1 in the 45_3 effective or invalid.That is to say that CPU42b resets and to be stored in the validity flag data " valid " of the picture properties data PP of scheduler buffer 45_1 in the 45_3.For example, CPU42b carries out as uses Figure 18 and the illustrated processing of Figure 19.
Step ST66:
The CPU42b of reproducer 4b determines reproduction (decoding) time started of picture properties data among the picture properties data PP in being stored in scheduler buffer 45_1 to 453, that have effective validity flag data " valid " once more, and this time is set to the reproduction time started " time " of picture properties data PP.That is to say that CPU42b resets reproduction time started " time " of picture properties data PP based on the result of step ST65.It is also noted that, for example, calculate the reproduction time started " time " of replacement by " 1 " being added to just the reproduction time started formerly.When being that unit has exported when decoding when being used to change the order of reproduction speed with the picture data, reproducer 4b is execution in step ST65 and ST66 immediately, and resets and to be stored in the validity flag data " valid " of the picture properties data PP of scheduler buffer 45_1 in the 45_3.Thus, according to reproducer 4b, might before the reproduction of finishing GOP as a whole, be unit decoding and reproduction and dateout according to the reproduction speed that is changed, with the picture.Therefore, and past, might shorten from reproducer 4 receive the order that is used to change reproduction speed the time be carved into the time of in fact carrying out corresponding to the moment of the reproduction of the reproduction speed that is changed and output.
Step ST67:
The CPU42b of reproducer 4b reads in the validity flag data " valid " that scheduler buffer 45_1 is selected for the picture properties data PP that stores in the scheduler buffer of processing in the middle of the 45_3 continuously.In addition, CPU42b is under the effective condition of validity flag data " valid " indication of the picture properties data PP that is read, and the decodes commands that output is used for corresponding picture data arrives decoder 34_1 to 34_3.
Step ST68:
Decoder 34_1,34_2 and 34_3 read from input store 32 by the indicated picture data of the decodes commands of importing in step ST67, and decoded result is written to reproduction of storage 36_1 in 36_3.
Step ST69:
Next the CPU42b of reproducer 4b wants decoded result reproduced and output based on specified reproduction direction and scheduling result, sign, the switching command of the display command of this decoded result of generation indication and the selector 38 of reproduction that is used to expect and output, and be written in the control storage 40.
Step ST70:
The display command that the CPU42b of reproducer 4b will generate in step ST68 outputs to decoder 34_1,34_2 and 34_3, and switching command is outputed to selector 38.
Step ST71:
Decoder 34_1,34_2 and 34_3 read the indicated decoded result of display command by input from reproduction of storage 36_1 to 36_3, and they are outputed to selector 38.In addition, selector 38 is based on the switching command of importing in step ST12, switches from the decoded result of decoder 34_1,34_2 and 34_3 input, so that they are selected and reproduce and export.
Step ST72:
The CPU42b of reproducer 4b will be in being stored in the just processed picture properties data PP of scheduler buffer 45_1 in the 45_3, be set to corresponding to the validity flag data " valid " of the picture properties data PP of decoded pictures data in step ST71 invalid.
Step ST73:
CPU20 and CPU42b judge that whether handled picture data is the final picture data in GOP.If judging it is last picture data, then proceed to step ST74, and if not, then proceed to step ST60 and handle next picture data.
Step ST74:
CPU20 and CPU42b judge whether the GOP under the handled picture data is last GOP in reproducing data ENC.If judging it is last GOP, then they finish this processing, and if not, then they proceed to step ST75.
Step ST75:
The CPU20 of computer 2 reads next GOP according to reproducing direction from HDD12.
Step ST76:
The CPU20 of computer 2 will output to reproducer 4b at the GOP that step ST75 reads by bridger 18 and pci bus 6.The CPU4b2b of reproducer 4b will write the input store 32 from the GOP that computer 2 is passed to by PCI bridger 30.
Step ST77:
The CPU20 of computer 2 finishes the CPU42b that notice outputs to reproducer 4b with the GOP transmission.CPU42b writes transmission and finishes notice in control storage 40.
Step ST78:
The CPU42b output of reproducer 4b is ready to complete the CPU20 that notifies computer 2.
Step ST79:
For example, the CPU42b of reproducer 4b judges and to comprise whether the scheduling of GOP of reproducing the picture data of point according to the next one that reproduces direction has finished (that is to say whether need scheduling).Also do not finish if judge scheduling, then proceed to step ST58, and if on the contrary, then proceed to step ST60.
As mentioned above, in the mode identical with the data handling system 1 of first embodiment, data handling system 1b is that unit carries out decoding scheduling with GOP, and result and reproduction speed based on decoding scheduling, when being used in fact decoding and reproducing and export the picture data that forms GOP, be that unit determines whether to decode with the picture data and whether reproduce and output is scheduled for the decoded pictures data.Therefore, according to data handling system 1b,, might before the reproduction of finishing GOP, according to the reproduction speed that is changed, with the picture data unit decoding and reproduction and dateout when the reproduction period at GOP has sent when being used to change the order of reproduction speed.Therefore, and past, might shorten from reproducer 4b receive the order that is used to change reproduction speed the time be carved into the time of in fact carrying out corresponding to the moment of the reproduction of the reproduction speed of that change and output.In addition, in data handling system 1b, only, can handle the change of reproduction speed by the validity flag data " valid " that (rewriting) is stored in the picture properties data PP of scheduler buffer 45_1 in the 45_3 are set.That is to say, need processing such as rearranging picture properties data PP, that relate to big processing load.Therefore, according to data handling system 1b, can be by little processing load and the change of processing speed at short notice.Adopting under the situation of long GOP, and under the big situation of the quantity of the picture data of being contained by scheduling therein, these effects are especially significant.
The present invention is not limited to the foregoing description.On the foregoing description, the mpeg picture data have been described as a plurality of picture datas, but the present invention can also be applied to voice data, as long as this voice data is decoded in order.
In addition, in the above-described embodiments, for example understand MPEG as encoding scheme, but H.264/AVC the present invention can be applied to (advanced video coding) etc. similarly, also can be applicable to the situation that decoded data wherein is made up of the first kind picture data and the second type picture data, wherein the decoded result of first kind picture data is by the reference of the decoding of other picture data institute, and the decoded result of the second type picture data can be by the reference of the decoding of other data institute.
In addition, in the above-described embodiments, also might be created on the result of all picture datas among the scheduling GOP in the decoding scheduling, and to generate according to the reproduction speed definition be that each picture data in all picture datas is set to effectively or invalid attribute data (flag data), and in the decoding and reproduction and output procedure of picture data, upgrade this attribute data according to specified reproduction speed.In addition, in the decoding and reproduction and output procedure of picture data, based on the attribute data that is upgraded, decoding and reproduction and output picture data.
In the above-described embodiments, illustrated that the picture data that wherein compresses is stored in the situation among the HDD12, but the present invention is not limited to this, for example, the present invention can also be applied to the storage carried out by input/output interface etc. on CD, magneto optical disk, semiconductor memory, disk or other various storage mediums.In addition, connected mode is not limited to the connection by cable etc.For example, the connection by other type connected mode such as aliunde wired or wireless connections also is possible.
In addition, in the above-described embodiments, the situation of being carried out a series of processing by the hardware with those functions has been described, but the present invention is not limited to this.It also is possible using software for this reason.At this moment wait, when carrying out a series of processing by software, can realize various types of functions in the computer by various programs are installed to, wherein in this computer, the program that forms this software is built in the specialized hardware.For example, program is from for example being installed in general purpose personal computer etc. the storage medium.In addition, for example, storage medium comprises CD, magneto optical disk, semiconductor memory, disk or other various storage mediums, and this is self-evident.In addition, for example, also might for example pass through Internet or the various types of programs of other network download, come they are installed in the general purpose personal computer etc.
In addition, in the above-described embodiments, describe the step of the program in the storage medium that is stored in and certainly carry out, but the present invention is not limited to this time sequencing with time sequencing along described order.Also comprise parallel or independently execution.
In addition, in the above-described embodiments, there is not restrict reproduction speed especially.The present invention can be widely used in the particular procedure of reproducing the reproducer of operation with any variable velocity.
In addition, the configuration of the piece among the embodiment is the example of piece configuration.The present invention is not limited to illustrated example.
In addition, by suitably providing one group of compression and data coded data, that indication is read from HDD12 that are used for being stored in HDD12 whether effectively to read sign, the validity of one group of indication in decoding scheduling separate code mark, one group of show label demonstration, the validity when indication is dispatched that are used for decoded data etc. are as metadata, and automatically upgrade this a series of set of landmarks according to reproduction speed and direction, can management and dispatching.At this moment wait, can be used as independent scheduling metadata (history information), the scheduling that management a series of use variable speed reproducings are in the past handled and the lastest imformation of set of landmarks.This can according to needs be described as compressing with coded data in grammer or can be stored in dividually in the storage medium such as HDD12.
In addition, also can be used as metadata (parts history information) and manage the number of the number of decoder, memory bank, decoder ID etc.In addition, can also be as metadata (representation of the historical recorded information) management reproduction speed, reproduction direction etc.At this moment wait, if necessary, metadata can be described as compressing with coded data in grammer or can be stored in dividually in the storage medium such as HDD12.By with reference to such metadata (history information), the scheduling of the execution of might reusing over and faster and operation dispatching more accurately.It is also noted that, can also comprise these metadata, so that manage these metadata at the external devices place of for example database.
It is also noted that, in the above-described embodiments, the present invention can also be applied to when decoder 34_1 to the situation of the incomplete decode stored of 34_3 when the compression on the HDD12 and coded data (with this data decode to the interstage).Specifically, for example, the present invention can also be applied to decoder 34_1 wherein and only carry out the decoding that is used for variable length code and re-quantization and do not carry out the situation of inverse DCT to 34_3, and wherein decoder is carried out re-quantization but do not carried out the situation etc. of the decoding that is used for variable length code.In this case, for example, decoder 34_1 can generate to 34_3 and for example indicate their performed processing until what stage of Code And Decode () history information for example, the re-quantization stage, and export this information with the data of incomplete decoding with interrelating.
In addition, in the above-described embodiments, HDD12 (for example stores incomplete coded data, carried out DCT and quantification and still do not carried out the data of variable length code), and according to needing the history information of memory encoding and decoding, but the present invention can also be applied to wherein decoder 34_1 to 34_3 can decode incomplete coded data that is provided and the situation that these data is converted to baseband signal under the control of CPU20.Specifically, the present invention can also be applied to wherein decoder 34_1 for example to 34_3 to having used DCT and having quantized not carry out the situation of the decoding that is used for variable length code but the data of not using variable length code are carried out inverse DCT and re-quantization.In addition, for example that CPU20 can obtain to interrelate with incomplete coded data, be stored in the Code And Decode history information among the HDD12 in this case, and the decoding of carrying out to 34_3 by decoder 34_1 based on this message scheduling.
In addition, in the above-described embodiments, HDD12 stores incomplete coded data, and according to needing the history information of memory encoding and decoding, but the present invention can also be applied to decoder 34_1 wherein to 34_3 incomplete decoding situation that provided, incomplete coded data (only with data decode to the interstage) under the control of CPU20.In addition, same in this case, for example that CPU20 can obtain to interrelate with incomplete coded data, be stored in the Code And Decode historical data among the HDD12, and the decoding of carrying out to 34_3 by decoder 34_1 based on this message scheduling.In other words, the present invention even can be applied to the situation of decoder 34_1 wherein to 34_3 operating part decoding (carrying out the part of decoding processing) under the control of CPU20.CPU20 obtains and incomplete coded data history information that interrelate, that be stored in the Code And Decode among the HDD12.Based on this information, might dispatch the decoding of carrying out to 34_3 by decoder 34_1.Decoder 34_1 can also generate the history information of decoding and decoding as required to 34_3, and exports this information with the data of incomplete decoding with interrelating.
In addition, HDD12 can further store the information of the historical record that Code And Decode that interrelate with the flow data that compresses and encode, relevant handles, and CPU20 can be based on the information of the historical record of relevant encoding process and decoding processing, the decoding of dispatching the flow data of this compression and coding.In addition, even the flow data of decoding compressed and coding and when it is converted to baseband signal under decoder 34_1 can the control at CPU20 to 34_3, also might generate the information of the historical record of relevant Code And Decode as required, and allow and this baseband signal is exported this information with interrelating.
It is also noted that in the above-described embodiments, reproducer 4 is illustrated as has a plurality of decoders, but the present invention also can be applied to the situation of single decoder.At this moment wait, single decoder not only can receive, decoding, with demonstration or output compression and coded data, but also can be in the same manner as described above, receive compression and coded data, this data division is decoded to the interstage, and these data are outputed to the outside with the history information of Code And Decode, the receiving unit coded data, this data of decoding, and these data are converted to baseband signal so that output to outside, perhaps receiving unit coded data, this data division is decoded to the interstage, and these data are outputed to the outside with the Code And Decode history information.
In addition, in the above-described embodiments, dispose CPU20 and CPU42 dividually, but the present invention is not limited to this.For example, can also expect by the single cpu of controlling reproducer 4 as a whole and dispose CPU20 and CPU42.In addition, even when disposing CPU20 and CPU42 independently, CPU20 and CPU42 also can form on single chip.
In addition, when disposing CPU20 and CPU42 independently, at least a portion of the processing of being carried out by CPU20 is for example divided by the time by CPU42 carry out, at least a portion of the processing of being carried out by CPU42 for example be divided by the time by CPU20 carry out.That is to say that CPU20 and CPU42 can also utilize the processor that can carry out dispersion treatment to realize.
In addition, for example, reproducer 4 can be configured to be connected to network, and in the above-described embodiments, and at least a portion of the processing of being carried out by CPU20 or CPU42 can be in the execution of the CPU place of another equipment that connects by network.Similarly, in the above-described embodiments, config memory 32,40 etc. dividually, but the present invention is not limited to this.Also can expect and dispose these memories by the single memory in the reproducer 4.
In addition, in the above-described embodiments, illustrated that HDD12, decoder 34_1 are connected and are integrated into the situation of reproducer to 34_3 and selector 38 via bridger with bus, but the present invention is not limited to this.For example, the present invention can also be applied to a part in these parts wherein by wired or wireless situation about connecting from the outside, and wherein these parts with the interconnective situation of other various connected modes.
In addition, in the above-described embodiments, illustrated that the flow data that compresses is stored in the situation among the HDD, but the present invention is not limited to this.For example, the present invention can also be applied to reproduce and handle the situation that is stored in the flow data on CD, magneto optical disk, semiconductor memory, disk or other the various storage mediums.
In addition, in the above-described embodiments, CPU42, memory 32, memory 40, decoder 34_1 are installed on the same expansion card (for example, pci card or PCI be (PCI-Express) card fast) to 34_3 and selector 38, but invention is not limited to this.For example, when the transmission speed between card was high, PCI-quick (PCI-Express) or other technology can be used for these parts are installed on the independent expansion card.
In addition, in this specification, " system " means the logical collection of a plurality of equipment.Whether it is in the same shell irrelevant with the equipment of different configurations.
The present invention can be applied to be used to reproduce the system of the data of having reproduced.
Those skilled in the art is to be understood that: within the scope of claim and their equivalents, depend on designing requirement and other factors, can carry out various modifications, combination, sub-portfolio and change.

Claims (20)

1, a kind of being used for decodes in order and reproduces the reproducer that forms a plurality of picture datas that reproduce data, and this equipment comprises:
Reproduction of storage;
Decoder is decoded to described picture data, writes decoded result in described reproduction of storage, and reproduces and described decoded result that output is read from described reproduction of storage; And
Treatment circuit, be used to carry out decoding scheduling, so that with predetermined a plurality of described picture datas is unit determine to decode at the described decoder place order of described picture data, to select to want processed described picture data by the determined described order of described decoding scheduling, according to specified reproduction speed determine whether to decode picture data or the reproduction and the output decoder result of described selection, and based on described decoding and the described reproduction and the output of described judgement, the described decoder of control.
2, reproducer as claimed in claim 1 is characterized in that: described treatment circuit is at least under the condition of 1X speed at the reproduction speed of described appointment, carries out described judgement.
3, reproducer as claimed in claim 1 is characterized in that: described treatment circuit is unit controls described picture data based on described judgement described decoding and described reproduction and output with described picture data.
4, reproducer as claimed in claim 1 is characterized in that described decoder
With described picture data is unit, the reproduction data that reproduction is made up of the first kind picture data and the second type picture data, wherein about first kind picture data, its decoded result in the decoding of other picture data by reference, and about the second type picture data, its decoded result not in the decoding of other picture data by reference;
The storage that in described reproduction of storage, keeps the described decoded result of described first kind picture data; And
When being stored in the decoded result of the described first kind picture data in the described reproduction of storage, decoding and reproduce and export the described second type picture data.
5, reproducer as claimed in claim 4, it is characterized in that: described decoder has precedence over the described second type picture data of decoding with reference to the decoded result of described first kind picture data, the picture data of the described first kind in described a plurality of picture datas of the described reproduction data of decoding formation.
6, reproducer as claimed in claim 5 is characterized in that:
In described equipment, the I picture data that need not decode with reference to the decoded result of other picture data and the P picture data of decoding with reference to the decoded result of other picture data, as described first kind picture data,
The described second type picture data is the B picture data of decoding with reference to the decoded result of other picture data,
Described decoder is stored simultaneously in first storage area of described reproduction of storage and is kept the decoded result of described P picture data and the decoded result of a described I picture data, wherein said P picture data is between decoded result is stored in an I picture data and the 2nd I picture data in the described memory, and the 2nd I picture data is to be positioned at next I picture data behind the described I picture data along described reproduction direction in a plurality of described I picture datas.
7, reproducer as claimed in claim 6 is characterized in that:
Described reproduction of storage has second storage area that separates with described first storage area, is used to store described B picture data, and
Described decoder writes the decoded result of the B picture data of described reproduction and output in order on the decoded result of other B picture data, up to finishing till the decoding of all the B picture datas between a described I picture data and described the 2nd I picture data.
8, reproducer as claimed in claim 4 also comprises:
A plurality of described decoders are used for handling concurrently described reproduction data;
A plurality of described reproduction of storage are provided with corresponding to described a plurality of decoders; And
Treatment circuit, be used to make the described picture data of described decoder decode, so that by same decoder decode the described second type picture data, and be included in described first kind picture data in the described picture data group by same decoder decode with reference to the decoded result of identical first kind picture data.
9, reproducer as claimed in claim 8, it is characterized in that: described treatment circuit makes a plurality of picture data groups of described a plurality of decoder decode, and each all comprises a plurality of picture datas that reproduced continuously and exported by different decoding circuits these picture data groups.
10, reproducer as claimed in claim 9, it is characterized in that: on the decoded result by the described first kind picture data of the second group of pictures data of described decoder decode before being close to the first group of pictures data that are stored in the described reproduction of storage, described decoder writes the decoded result of the described first kind picture data in the first group of pictures data.
11, reproducer as claimed in claim 1,
Described equipment is each described picture data definition be used to indicate whether to decode picture properties data of described picture data, and
Comprise the control store device, be used to store the described picture properties data of described a plurality of picture datas; And
Described decoder based on the described picture properties data that read from described control store device, described picture data corresponding to described picture properties data determines whether to decode.
12, reproducer as claimed in claim 11 is characterized in that: the specified reproduction speed of described decoder foundation updates stored in the described picture properties data in the described control store device.
13, reproducer as claimed in claim 12 is characterized in that: when upgrading described picture properties data, described decoder upgrade the described picture properties data of decoding corresponding to indication described picture data reproduction regularly.
14, a kind of data handling system comprises:
Data processing equipment is used for outputing to reproducer with forming a plurality of picture datas that reproduce data; And
Reproducer is used for decoding continuously and reproducing a plurality of picture datas of importing from described data processing equipment;
Described reproducer comprises:
Input store is used to store the described picture data from described data processing equipment input;
Reproduction of storage;
Decoder is decoded to the described picture data that reads from described input store, writes decoded result in described reproduction of storage, and reproduces and described decoded result that output is read from described reproduction of storage; And
Treatment circuit, be used to carry out decoding scheduling, so that with predetermined a plurality of described picture datas is the order that unit determines to make the described picture data of described decoder decode, to select to want processed described picture data by the determined described order of described decoding scheduling, according to specified reproduction speed, picture data or the reproduction or the output decoder result of the described selection that determines whether to decode, and determine decoding and the reproduction and the output of result, the described decoder of control based on this.
15, a kind of reproducting method of decoding continuously and reproducing a plurality of picture datas that form the reproduction data, this method comprises:
First step is carried out decoding scheduling, so that to be scheduled to the order that a plurality of described picture datas are the described picture data of the definite decoding of unit;
Second step selects to want processed described picture data based on the order of being determined by the described decoding scheduling in described first step;
Third step is according to specified reproduction speed, described picture data or reproduction and the output decoder result who determines whether to decode and select in described second step; And
The 4th step is based on the reproduction and the output of determining, control described decoding and described decoded result of described third step.
16, reproducting method as claimed in claim 15, it is characterized in that: described third step is based upon picture properties data each described picture data definition, that indicate whether to decode described picture data, and described picture data corresponding to described picture properties data determines whether to decode.
17, a kind of reproducting method comprises:
First step is used for outputing to reproducer with forming a plurality of picture datas that reproduce data from data processing equipment;
Second step makes described reproducer carry out decoding scheduling, so that be that unit determines decoding order from the picture data of described data processing equipment input in described first step with predetermined a plurality of described picture datas;
Third step by the order that the described decoding scheduling of carrying out is determined, is selected processed described picture data in described second step;
The 4th step is according to specified reproduction speed, described picture data or reproduction and the output decoder result who determines whether to decode and select in described third step; And
The 5th step is based on the described reproduction and the output of determining, control described decoding and described decoded result of described the 4th step.
18, a kind of program, by decoding continuously and reproducing the reproducer that forms a plurality of picture datas that reproduce data and carry out, this program comprises:
First routine is carried out decoding scheduling, so that to be scheduled to the order that a plurality of described picture datas are the described picture data of the definite decoding of unit;
Second routine with the order of being determined by the described decoding scheduling of carrying out, is selected processed described picture data in described first routine;
The 3rd routine is according to specified reproduction speed, described picture data or reproduction and the output decoder result who determines whether to decode and select in described second routine; And
The 4th routine is based on the described reproduction and the output of determining, control described decoding and described decoded result of described the 3rd routine.
19, a kind of storage medium of having stored the program of being carried out by reproducer, this reproducer are decoded continuously and are reproduced and form a plurality of picture datas that reproduce data, and described program comprises:
First routine is carried out decoding scheduling, so that be the order that unit determines the decoded picture data with predetermined a plurality of described picture datas;
Second routine with the order of being determined by the described decoding scheduling of carrying out, is selected the described picture data of handling in described first routine;
The 3rd routine is according to specified reproduction speed, described picture data or reproduction and the output decoder result who determines whether to decode and select in described second routine; And
The 4th routine is based on the described reproduction and the output of determining, control described decoding and described decoded result of described the 3rd routine.
20, a kind of data processing equipment comprises:
Storage medium, storage forms a plurality of picture datas that reproduce data;
Reading device is used for reading described picture data from described storage medium;
Input store is used to store the described picture data that is read by described reading device;
Reproduction of storage;
Decoder is used for the described picture data that reads from described input store is decoded, and writes decoded result in described reproduction of storage, and reproduces and described decoded result that output is read from described reproduction of storage; And
Treatment circuit, be used to carry out decoding scheduling, so that with predetermined a plurality of described picture datas is the order that unit determines to make the described picture data of described decoder decode, to select to want processed described picture data by the determined described order of described decoding scheduling, according to specified reproduction speed, determine whether to decode selected picture data or reproduction or output decoder result, and determine that based on this result controls decoding and the reproduction and the output of described decoder.
CNB2005101141652A 2004-10-26 2005-10-26 Reproduction apparatus, data processing system, reproduction method, program, and storage medium Expired - Fee Related CN100466712C (en)

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