CN1705374A - Integrated encoding-decoding device and method thereof - Google Patents
Integrated encoding-decoding device and method thereof Download PDFInfo
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- CN1705374A CN1705374A CN 200410045977 CN200410045977A CN1705374A CN 1705374 A CN1705374 A CN 1705374A CN 200410045977 CN200410045977 CN 200410045977 CN 200410045977 A CN200410045977 A CN 200410045977A CN 1705374 A CN1705374 A CN 1705374A
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Abstract
This invention provides conformity coding/decoding device for converting an input data into an output data, which contains plurality of coding/decoding module for respectively coding input and output data to generate output and input data, a process unit connected with coding/decoding module for determining activating at least coding/decoding module to convert said input data into output data according to source data and output data format.
Description
Technical field
The invention provides a kind of conformability device for encoding and decoding and method thereof, refer to that especially a kind of target data form according to the source data format of importing data or dateout starts the conformability device for encoding and decoding and the method thereof of codec module.
Background technology
Along with the development day by day of multimedia technology, many related application also produce in succession so that the user to be provided different demands.Wherein, (the International Standards Organization of International Standards Organization, ISO) (Motion Picture Experts Group, the animation compression standard of MPEG) being formulated provides a data standard interface in the device of different size to mpeg.For example, each tame manufacturer can produce encoder (coder) and decoder (decoder) separately individually, only need meet identical crossfire (bitstream) data format and get final product.And the device for encoding and decoding of different size (coder/decoder CODEC) also provides suitable compression ratio so that data is handled according to the different demand of user.For example, transmit under the environment in the bigger data of frequency range, only need to adopt the little coding and decoding technology (as MPEG-1) of compression ratio to get final product, and under the less data transmission environment of frequency range (for example see through mobile phone and transmit multimedia interface design), then need the big coding and decoding technology (as MPEG-4) of compression ratio.In addition, often because the user uses the playing device of different size, and the multi-medium data that needs to have compressed is another data format by a Data Format Transform.
Yet, the device for encoding and decoding of prior art itself is only for realizing the chip of single coding and decoding specification, if a computer system need be handled the coding and decoding technology of different size, aspect hardware technology, as if the coding and decoding technology of supporting different size with one chip simultaneously, the development cost of this chip is very big, yet, if utilize software to handle the data of corresponding various coding and decoding technology, then can cause the serious load of computer system and influence the usefulness of computer system.
Summary of the invention
Main purpose of the present invention is to provide a kind of conformability device for encoding and decoding and method thereof that can start corresponding codec module according to the target data form of the source data format of importing data or dateout, to address the above problem.
The present invention discloses a kind of conformability device for encoding and decoding.This conformability device for encoding and decoding is used for input data are converted to a dateout, include a plurality of codec module, can be used for encoding these input data respectively to produce this dateout and to be used for deciphering these input data to produce this dateout and a processing unit, be electrically connected on this a plurality of codec module, be used for deciding at least one codec module of startup to be converted to this dateout should import data according to the source data format of these input data or the target data form of this dateout.
In addition, the present invention discloses a kind of conformability Bian Xie Code method in addition.This conformability is compiled and is separated the Code method and be used for input data are converted to a dateout, and this method includes provides a plurality of codec module to be converted to this dateout to produce this dateout and to start at least one codec module according to the target data format determination of the source data format of these input data or this dateout should import data to produce this dateout and to be used for deciphering these input data with these input data that are used for respectively encoding.
Conformability device for encoding and decoding of the present invention and method thereof decide the required codec module of startup with the translation data form according to the source data format of input data or the target data form of dateout, because conformability device for encoding and decoding of the present invention can adopt ready-made hardware to realize, therefore development cost is low, in addition, conformability device for encoding and decoding of the present invention is the coding and decoding computing of carrying out data with hardware mode, therefore can avoid the influence of existing software computing to total system usefulness.
Description of drawings
Fig. 1 is the function block schematic diagram of conformability device for encoding and decoding of the present invention;
Fig. 2 is the operational flowchart of conformability device for encoding and decoding shown in Figure 1.
Embodiment
Please refer to Fig. 1, Fig. 1 is the function block schematic diagram of conformability device for encoding and decoding 10 of the present invention.Conformability device for encoding and decoding 10 is to be used for an input data DATAi is converted to a dateout DATAo.In the present embodiment, conformability device for encoding and decoding 10 includes a processing unit 20 and a plurality of codec module 22,24, please note, do not influencing under the technology of the present invention exposure, only show two codec module 22,24 among Fig. 1, yet in fact conformability device for encoding and decoding 10 does not limit to the quantity of its set codec module.Processing unit 20 is to be electrically connected on codec module 22,24, is used for controlling the running of codec module 22,24.Codec module 22 is to be used for the data of corresponding one first data format are converted to the data of corresponding one second data format, and carries out corresponding decoding computing or carry out corresponding coding computing according to this second data format according to this first data format.Codec module 24 is to be used for the data of corresponding one the 3rd data format are converted to the data of corresponding one the 4th data format, and carries out corresponding decoding computing or carry out corresponding coding computing according to the 4th data format according to the 3rd data format.Certainly, the data formats of separating between the coding module 22,24 also can be changed mutually.For instance, when the data of separating coding module 22 output second data format when separating coding module 24, separate that coding module 24 also can be converted to the data of second data format data of the 4th data format and as dateout DATAo; Otherwise, when the data of separating coding module 24 output the 4th data format when separating coding module 22, separate coding module 24 and also the data of the 4th data format can be converted to the data of second data format as dateout DATAo.
Please refer to Fig. 2, Fig. 2 is the operational flowchart of conformability device for encoding and decoding 10 shown in Figure 1.Details are as follows in the running of conformability device for encoding and decoding 10:
Step 100: input input data DATAi to be processed;
Step 102: processing unit 20 starts at least one codec module 22,24 according to the source data format of input data DATAi or the target data format determination of dateout DATAo;
Step 104: 24 pairs of inputs of codec module 22 or codec module data DATAi carries out coding and decoding to be handled to produce dateout DATAo; And
Step 106: the dateout DATAo of processing has been finished in output.
As mentioned above, after input data DATAi is sent to conformability device for encoding and decoding 10 (step 100), processing unit 20 just can be judged source data format or the desired target data form of dateout DATAo of input data DATAi, and starts suitable codec module 22,24 (step 102) according to judged result.For instance, if this source data format is to be above-mentioned first data format, then processing unit 20 is just judged needs to start codec module 22 so that decoding input data DATAi produces the dateout DATAo (step 104) of corresponding above-mentioned second data format; If this source data format is to be above-mentioned the 3rd data format, then processing unit 20 is just judged needs to start codec module 24 so that decoding input data DATAi produces the dateout DATAo (step 104) of corresponding above-mentioned the 4th data format; If this target data form is to be above-mentioned second data format, then processing unit 20 is just judged needs to start codec module 22 so that coded input data DATAi produces the dateout DATAo (step 104) of corresponding above-mentioned second data format; If this target data form is to be above-mentioned the 4th data format, then processing unit 20 is just judged needs to start codec module 24 so that coded input data DATAi produces the dateout DATAo (step 104) of corresponding above-mentioned the 4th data format.At last, conformability device for encoding and decoding 10 just can carry out coding and decoding computing correctly to input data DATAi via starting suitable codec module 22,24, and successfully exports desired dateout DATAo (step 106).
Please note, conformability device for encoding and decoding 10 also can expand its function via serial connection (cascade), for example, if this source data format be for this first data format and this target data form be to be the 4th data format, then processing unit 20 is just controlled codec module 22 and is serially connected with codec module 24, that is the dateout that produced of codec module 22 can become the input data of codec module 24, so conformability device for encoding and decoding 10 just can be according to the dateout DATAo that input data DATAi that should first data format is produced desired corresponding the 4th data format.For instance, conformability device for encoding and decoding 10 can be applicable to an encrypt/decrypt (encryption/decryption) system, therefore codec module 22,24 just can be encrypted an initial data (raw data) separately and be produced desired enciphered data, or deciphers above-mentioned enciphered data respectively and produce initial data.In addition, processing unit 20 also can start codec module 22,24 simultaneously and constitute a serial connection framework, therefore, the combination of codec module 22,24 just can be implemented a predictive encoding computing and come encrypting input data DATAi to produce desired dateout DATAo, and perhaps the combination of codec module 22,24 just can be implemented a predetermined Xie Code computing and decipher input data DATAi to produce desired dateout DATAo.
If conformability device for encoding and decoding 10 is to be applied to a multimedia processing system, and decoding module 22 is for meeting an animation compression standard (MPEG-1 for example, MPEG-2 or MPEG-4) coder, and decoding module 24 is for meeting another animation compression standard (MPEG-1 for example, MPEG-2 or MPEG-4) coder, so codec module 22,24 just can be encoded to the stream data that meets the animation compression standard with an initial data (rawdata), or the stream data that decoding meets the animation compression standard produces corresponding initial data, in addition, conformability device for encoding and decoding 10 also can utilize codec module 22,24 serial connection framework is another stream data with a stream data transcoding (transcoding), for instance, decoding module 22 decodable codes are with the coded image data of MPEG-2 form, and decoding module 24 can be carried out the coding computing according to the MPEG-4 form, therefore, if input data DATAi is for the coded image data of MPEG-2 form, yet, one user wishes to get with the coded image data of MPEG-4 form, then processing unit 20 can start codec module 22 simultaneously, 24 constitute a serial connection framework, therefore, as decoding module 22 decoding input data DATAi and after producing corresponding initial data, this initial data can be imported decoding module 24 further, then, decoding module 24 just can come this initial data is carried out encoding process according to the MPEG-4 form, at last, the desired dateout DATAo of just exportable this user of conformability device for encoding and decoding 10.
Compared to prior art, conformability device for encoding and decoding of the present invention and method thereof decide the required codec module of startup with the translation data form according to the source data format of input data or the target data form of dateout, because conformability device for encoding and decoding of the present invention can adopt ready-made hardware to realize, therefore development cost is low, in addition, conformability device for encoding and decoding of the present invention is the coding and decoding computing of carrying out data with hardware mode, therefore can avoid the influence of existing software computing to total system usefulness.
The above only is preferred embodiment of the present invention, and all equalizations of being done according to claim scope of the present invention change and modify, and all should belong to the covering scope of patent of the present invention.
Claims (10)
1. a conformability device for encoding and decoding is used for input data are converted to a dateout, and it is characterized in that: this conformability device for encoding and decoding includes:
A plurality of codec module, these input data that can be used for respectively encoding are to produce this dateout and to be used for deciphering these input data to produce this dateout; And
One processing unit is electrically connected on this a plurality of codec module, is used for deciding at least one codec module of startup to be converted to this dateout should import data according to the source data format of these input data or the target data form of this dateout.
2. conformability device for encoding and decoding as claimed in claim 1, it is characterized in that: wherein one first codec module is to be used for the data of corresponding one first data format are converted to the data of corresponding one second data format, and one second codec module be to be used for the data of corresponding one the 3rd data format are converted to the data of corresponding one the 4th data format, and when this processing unit judge this source data format be for this first data format or this target data form be to be second data format, this processing unit is to start this first codec module these input data are converted to this dateout, and to judge this source data format when this processing unit be for the 3rd data format or this target data form are to be the 4th data format, and this processing unit is that this second codec module of startup is converted to this dateout with these input data.
3. conformability device for encoding and decoding as claimed in claim 2, it is characterized in that: wherein this second codec module is to be serially connected with this first codec module, and if it is for this first data format and this target data form are to be the 4th data format that this processing unit is judged this source data format, this processing unit is that this first, second codec module of startup was converted to this dateout should import data.
4. conformability device for encoding and decoding as claimed in claim 3, it is characterized in that: wherein this first codec module is to carry out the decoding computing or carry out the coding computing according to this second data format according to this first data format, and this second codec module is to carry out the decoding computing or carry out the coding computing according to the 4th data format according to the 3rd data format.
5. conformability device for encoding and decoding as claimed in claim 1 is characterized in that: wherein this source data format is to meet an animation compression standard or this target data form is to meet this animation compression standard.
6. a conformability is compiled and is separated the Code method, is used for input data are converted to a dateout, and it is characterized in that: this method includes:
(a) provide a plurality of codec module to be used for encoding these input data respectively to produce this dateout and to be used for deciphering these input data to produce this dateout; And
(b) start at least one codec module according to the target data format determination of the source data format of these input data or this dateout and be converted to this dateout should import data.
7. conformability Bian Xie Code method as claimed in claim 6, it is characterized in that: wherein step (a) provides the data that one first codec module is converted to the data of corresponding one first data format corresponding one second data format, and provide one second codec module the data of corresponding one the 3rd data format to be converted to the data of corresponding one the 4th data format, wherein when judge this source data format be for this first data format or this target data form be to be second data format, then start this first codec module these input data are converted to this dateout, and when judging that this source data format is for the 3rd data format or this target data form are to be the 4th data format, then starts this second codec module these input data are converted to this dateout.
8. conformability Bian Xie Code method as claimed in claim 7, it is characterized in that: wherein this second codec module is to be serially connected with this first codec module, and, then start this first, second codec module and be converted to this dateout should import data if judging this source data format is for this first data format and this target data form are to be the 4th data format.
9. conformability Bian Xie Code method as claimed in claim 8, it is characterized in that: wherein this first codec module is to carry out the decoding computing or carry out the coding computing according to this second data format according to this first data format, and this second codec module is to carry out the decoding computing or carry out the coding computing according to the 4th data format according to the 3rd data format.
10. conformability Bian Xie Code method as claimed in claim 6 is characterized in that: wherein this source data format is to meet an animation compression standard or this target data form is to meet this animation compression standard.
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| CN 200410045977 CN1705374A (en) | 2004-05-27 | 2004-05-27 | Integrated encoding-decoding device and method thereof |
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| CN 200410045977 CN1705374A (en) | 2004-05-27 | 2004-05-27 | Integrated encoding-decoding device and method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102427534A (en) * | 2009-01-19 | 2012-04-25 | 松下电器产业株式会社 | Coding method, decoding method, coding apparatus, decoding apparatus, program, and integrated circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102427534A (en) * | 2009-01-19 | 2012-04-25 | 松下电器产业株式会社 | Coding method, decoding method, coding apparatus, decoding apparatus, program, and integrated circuit |
| CN102427534B (en) * | 2009-01-19 | 2014-06-18 | 松下电器产业株式会社 | Coding method and apparatus |
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