CN101783950B - Method, system and device for displaying image - Google Patents
Method, system and device for displaying image Download PDFInfo
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Abstract
The invention discloses a method, a system and a device for displaying a static image in a digital TV. The method comprises the steps of: receiving an I frame, and generating a video sequence which is in accordance with a moving picture experts group (MPEG) standard by referring to the I frame; and then, transmitting the generated video sequence to an MPEG hardware decoder for decoding. In the embodiment of the invention, a P frame and a B frame are generated by referring to the I frame, so that the video sequence which is in accordance with the MPEG standard can be generated and then transmitted to the MPEG hardware decoder for decoding, and decoded image is not processed by a CPU; an therefore, the invention saves resource of the CPU, and improves the decoding efficiency.
Description
Technical field
The present invention relates to the digital television techniques field, relate in particular to a kind of method for displaying image, system and corresponding device thereof.
Background technology
Live image panel of expert (MPEG, Motion Picture Expert Group) standard is to transmit the compression standard of Voice & Video in the multimedia field.The MPEG compression standard designs to moving image, and its basic skills is: in the unit interval, gather and preserve first frame information, just only store the part that relative first frame of all the other frames changes then, to reach the purpose of compression.The coded system of first frame is intraframe coding, need not encode with reference to other frames, and data volume is the most complete maximum, also is intracoded frame (I frame, Intra Coded Frame); Surplus frame has two kinds, forward predictive frame (P frame, Forward PredictedFrame) and bi-directional predicted frames (B frame, Both Forward Predicted and Backward PredictedFrame).The P frame is to be reference frame with the I frame, in the I frame, finds out the predicted value and the motion vector of P frame pixel, gets prediction difference and motion vector transmits together; From the I frame, find out the predicted value of P frame pixel and obtain P frame pixel sample value mutually according to motion vector at receiving terminal, thereby can obtain complete P frame with difference.The B frame is a reference frame with the I of front or the P frame of P frame and back, finds out predicted value and two motion vectors of B frame pixel, and gets prediction difference and motion vector transmission; Receiving terminal is calculated predicted value according to motion vector and is sued for peace with difference in two reference frames, obtain B frame pixel sample value, thereby can obtain complete B frame.MPEG has realized the frame of static state and frame are compressed into the dynamic video code flow of a consolidation form.Because compression ratio is high, so the speed of mpeg decoder decoding is very fast; Because unified code stream form is arranged, so compatible good.
Picture mainly handles through CPU at present; Usually earlier picture is changed into general form, like JPEG (JPEG, Joint Photographic Experts Group) form, bitmap (BMP; BITMAP), graphic interchange format (GIF; Graphics Interchange Format) the readable form of CPU such as, sending to CPU carries out decoding processing, on display device, Shows Picture at last.
Inventor of the present invention finds that two calculation processing units are arranged on the digital TV terminal in to the research of above-mentioned prior art and practice process, one is CPU, and one is mpeg standard 2 (MPEG-2) hardware decoder.In application browse graph as the time, be that CPU is handling, image particularly high-definition image is the bigger file of data volume, it is slow that CPU deals with speed, particularly when carrying out real-time batch process, can feel obviously that more CPU speed does not catch up with.The speed of MPEG hardware decoder decoded picture is tens times of CPU, but but is in idle state because of the incompatible problem of form.
Summary of the invention
The embodiment of the invention provides a kind of display packing, system and corresponding device thereof of image.
A kind of display packing of image comprises:
The I frame that meets mpeg standard that reception server issues;
Generate the MPEG video sequence with reference to the I frame that receives;
The MPEG video sequence that generates is sent to the MPEG hardware decoder decodes.
A kind of display packing of image comprises:
Server obtains view data;
Generate the I frame that meets mpeg standard according to the view data of obtaining;
The I frame that generates is handed down to digital TV terminal through network;
The I frame that the digital TV terminal reception server issues;
Generate the MPEG video sequence with reference to the I frame that receives;
The MPEG video sequence that generates is sent to the MPEG hardware decoder decodes.
A kind of image display device comprises:
Receiver module is used to receive the I frame;
Generation module is used for generating the MPEG video sequence according to the I frame that receives;
Decoder module is used for that generation MPEG video sequence is sent to the MPEG hardware decoder and decodes.
A kind of image display system comprises:
Server is used to obtain view data, generates the I frame that meets mpeg standard according to the view data of obtaining, and then the I frame that generates is handed down to digital TV terminal through network;
Digital TV terminal is used to receive the I frame, generates according to the I frame that receives to meet the mpeg standard video sequence, and the video sequence that meets mpeg standard that will generate again sends to the MPEG hardware decoder and decodes.
Can find out that from above technical scheme the embodiment of the invention has the following advantages:
In the scheme that the embodiment of the invention provides, system obtains after the I frame of image, can generate P frame and B frame according to this I frame that obtains, thereby generate the video sequence that meets mpeg standard, sends to mpeg decoder and decodes.So CPU just need not carry out the processing of decoded picture, has practiced thrift cpu resource, has improved decoding efficiency.
Description of drawings
Fig. 1 is a method for displaying image flow chart in the embodiment of the invention;
Fig. 2 is a method for displaying image flow chart in the embodiment of the invention;
Fig. 3 generates I frame step data flow in the method for displaying image in the embodiment of the invention;
Fig. 4 is an image display device logical construction sketch map in the embodiment of the invention;
Fig. 5 is an image display system logical construction sketch map in the embodiment of the invention.
Embodiment
The embodiment of the invention provides display packing, method and the device of image, is used to practice thrift cpu resource, improves the efficient of handling image.Below be elaborated.
See also Fig. 1, method for displaying image first embodiment comprises in the embodiment of the invention:
101, receive the I frame;
Digital TV terminal receives the I frame in the cable TV network.
102, generate video sequence;
This step is that the CPU by digital TV terminal accomplishes, and calls generation module by middleware earlier, generates the video sequence IPPPPPP that meets mpeg standard with reference to the I frame again, comprising:
Generate the P frame with reference to the I frame; The macro block bar quantity of P frame equates with macro block bar quantity with reference to the I frame; It is coded macroblocks that the macro block of composition P frame macro block bar has only first macro block and last macro block, and other macro blocks are empty, and first macro block needs coded data to have with last macro block:
Quantize scale (quantiser_scale_code): arbitrarily, (CBP is 0 coded_block_pattern), does not promptly encode, and quantizes inoperative because of the block encoding pattern of all pieces of macro block (Block);
Extension bits (extra_bit_slice): be fixed as 0;
Macroblock address increment (macroblock_address_increment): the address increment of first macro block is 1; The address increment of last macro block deducts 1 machine by the video resolution width divided by the merchant of macro block width and obtains; As: the I frame of one 720 * 576 pixel, width is 720, the width of each macro block is 16; 720 ÷ 16-1=44, promptly the address increment of last macro block is 44;
Macro block mode (macroblock_modes): the macro block mode of P frame is to travel forward;
Motion vector (motion_vectors): level all is 0 with vertical motion vector.
So constantly generate the P frame, pass through the combination with the I frame again, just can obtain MPEG video sequence: IPPPPPP, middleware sends to the MPEG hardware decoder with the MPEG video sequence of generation.
103, decoding video sequence;
The MPEG hardware decoder receiver, video sequence of digital TV terminal, with video sequence decoding, display device is normal continuous playing image just.
Generate the P frame with reference to the I frame; The macro block bar quantity of P frame equates with macro block bar quantity with reference to the I frame; It is coded macroblocks that the macro block of composition P frame macro block bar has only first macro block and last macro block, and other macro blocks are empty, and first macro block needs coded data to have with last macro block:
Quantize scale (quantiser_scale_code): arbitrarily,, promptly do not encode, quantize inoperative because of the CBP of all Block of macro block is 0;
Extension bits (extra_bit_slice): be fixed as 0;
Macroblock address increment (macroblock_address_increment): the address increment of first macro block is 1; The address increment of last macro block deducts 1 by the video resolution width divided by the merchant of macro block width and calculates; As: the I frame of one 720 * 576 pixel, width is 720, the width of each macro block is 16; 720 ÷ 16-1=44, promptly the address increment of last macro block is 44;
Macro block mode (macroblock_modes): the macro block mode of P frame is to travel forward;
Motion vector (motion_vectors): level all is 0 with vertical motion vector.
Generate the B frame with reference to the I frame; The macro block bar quantity of B frame equates with the macro block bar quantity of reference frame I frame; It is coded macroblocks that the macro block of composition B frame macro block bar has only first macro block and last macro block, and other macro blocks are empty, and first macro block needs coded data to have with last macro block:
Quantize scale (quantiser_scale_code): arbitrarily,, promptly do not encode, quantize inoperative because of the CBP of all Block of macro block is 0;
Extension bits (extra_bit_slice): be fixed as 0;
Macroblock address increment (macroblock_address_increment): the address increment of first macro block is 1; The address increment of last macro block deducts 1 by the video resolution width divided by the merchant of macro block width and calculates; As: the I frame of one 720 * 576 pixel, width is 720, the width of each macro block is 16; 720 ÷ 16-1=44, promptly the address increment of last macro block is 44;
Macro block mode (macroblock_modes): the macro block mode of B frame is set to travel forward;
Motion vector (motion_vectors): level all is 0 with vertical motion vector.
So constantly generate PBB, pass through the combination with the I frame again, just can obtain MPEG video sequence: IPBBPBBPBB, middleware sends to the MPEG hardware decoder with the MPEG video sequence of generation.
Can also generate MPEG video sequence: IBBPBBPBBP; First with reference to I frame generation P frame and B frame (the same video sequence that generates of method: IPBBPBBPBB); Be combined into the BBP frame then; Pass through the combination with the I frame again, just can obtain MPEG video sequence: IBBPBBPBBP, middleware sends to the MPEG hardware decoder with the MPEG video sequence that generates.
In the present embodiment; Receive the I frame image data of cable TV network at digital TV terminal after, earlier this I frame image data is generated a video sequence that meets mpeg standard, re-send to the decoding of MPEG hardware decoder; Rather than carry out decodes and plays by CPU; Reduced the burden of CPU,, improved decoding efficiency greatly based on the powerful hardware decoding capability of MPEG.
Seeing also Fig. 2, is that method for displaying image second embodiment comprises in the embodiment of the invention below:
201, obtain view data
At first the server of digital TV network front end can obtain view data from each scene, and this view data can be the TV programme that derive from the big net, also can be the view data that derives from forms such as JPEG in the network, BMP.
202, generate the I frame
After server gets access to view data, can screen,, be issued to network itself being exactly the mpeg frame form and being the I frame format to view data; If view data itself is not the mpeg standard frame format, then view data is transformed the I frame, be issued to network.
203, be issued to network
The I frame that generates is handed down to digital TV terminal through network.
204, receive the I frame
The digital TV terminal of cable TV network receives the I frame in the cable TV network.
205, generate video sequence
This step is that the CPU by digital TV terminal accomplishes, and calls generation module by middleware, regeneration MPEG video sequence earlier.
Can generate MPEG video sequence: IPPPPPP, as follows:
Generate the P frame with reference to the I frame; The macro block bar quantity of P frame equates with macro block bar quantity with reference to the I frame; It is coded macroblocks that the macro block of composition P frame macro block bar has only first macro block and last macro block, and other macro blocks are empty, and first macro block needs coded data to have with last macro block:
Quantize scale (quantiser_scale_code): arbitrarily,, promptly do not encode, quantize inoperative because of the CBP of all Block of macro block is 0;
Extension bits (extra_bit_slice): be fixed as 0;
Macroblock address increment (macroblock_address_increment): the address increment of first macro block is 1; The address increment of last macro block deducts 1 by the video resolution width divided by the merchant of macro block width and calculates; As: the I frame of one 720 * 576 pixel, width is 720, the width of each macro block is 16; 720 ÷ 16-1=44, promptly the address increment of last macro block is 44;
Macro block mode (macroblock_modes): the macro block mode of P frame is to travel forward;
Motion vector (motion_vectors): level all is 0 with vertical motion vector.
So constantly generate the P frame, pass through the combination with the I frame again, just can obtain MPEG video sequence: IPPPPPP, middleware sends to the MPEG hardware decoder with the MPEG video sequence of generation.
Can also generate MPEG video sequence: IPBBPBBPBB, as follows:
Generate the P frame with reference to the I frame; The macro block bar quantity of P frame equates with macro block bar quantity with reference to the I frame; It is coded macroblocks that the macro block of composition P frame macro block bar has only first macro block and last macro block, and other macro blocks are empty, and first macro block needs coded data to have with last macro block:
Quantize scale (quantiser_scale_code): arbitrarily,, promptly do not encode, quantize inoperative because of the CBP of all Block of macro block is 0;
Extension bits (extra_bit_slice): be fixed as 0;
Macroblock address increment (macroblock_address_increment): the address increment of first macro block is 1; The address increment of last macro block deducts 1 by the video resolution width divided by the merchant of macro block width and calculates; As: the I frame of one 720 * 576 pixel, width is 720, the width of each macro block is 16; 720 ÷ 16-1=44, promptly the address increment of last macro block is 44;
Macro block mode (macroblock_modes): the macro block mode of P frame is to travel forward;
Motion vector (motion_vectors): level all is 0 with vertical motion vector.
Generate the B frame with reference to the I frame; The macro block bar quantity of B frame equates with the macro block bar quantity of reference frame I frame; It is coded macroblocks that the macro block of composition B frame macro block bar has only first macro block and last macro block, and other macro blocks are empty, and first macro block needs coded data to have with last macro block:
Quantize scale (quantiser_scale_code): arbitrarily,, promptly do not encode, quantize inoperative because of the CBP of all Block of macro block is 0;
Extension bits (extra_bit_slice): be fixed as 0;
Macroblock address increment (macroblock_address_increment): the address increment of first macro block is 1; The address increment of last macro block deducts 1 by the video resolution width divided by the merchant of macro block width and calculates; As: the I frame of one 720 * 576 pixel, width is 720, the width of each macro block is 16; 720 ÷ 16-1=44, promptly the address increment of last macro block is 44;
Macro block mode (macroblock_modes): the macro block mode of B frame is set to travel forward;
Motion vector (motion_vectors): level all is 0 with vertical motion vector.
So constantly generate the PBB frame, pass through the combination with the I frame again, just can obtain MPEG video sequence: IPBBPBBPBB, middleware sends to the MPEG hardware decoder with the MPEG video sequence of generation.
Can also generate MPEG video sequence: IBBPBBPBBP; First with reference to I frame generation P frame and B frame (the same video sequence that generates of method: IPBBPBBPBB); Be combined into the BBP frame then; Pass through the combination with the I frame again, just can obtain MPEG video sequence: IBBPBBPBBP, middleware sends to the MPEG hardware decoder with the MPEG video sequence that generates.
206, decoding video sequence
The MPEG hardware decoder receiver, video sequence of digital TV terminal, with video sequence decoding, display device is normal continuous playing image just.
In the method for displaying image of present embodiment; Front-end server sends to digital TV terminal with the I frame, generates video sequence by digital TV terminal with reference to the I frame then, sends to the MPEG hardware decoder and decodes; Rather than decode by CPU; Alleviated the burden of CPU,, improved decoding efficiency greatly based on the powerful hardware decoding capability of MPEG.
For better understanding, below we consult Fig. 3 to 202 generate the I frames step be elaborated.Comprise:
301, server gets access to view data, carries out 302;
302, judge that view data that server obtains whether for meeting the mpeg standard frame, if meet the mpeg standard frame, carries out 303; If not meeting the mpeg standard frame, carry out 306;
303, judge that meeting the mpeg standard frame is the I frame, if the I frame carries out 304; If not the I frame, carry out 305;
304, the I frame is handed down to digital TV terminal through network;
305, abandon not being the frame data of I frame;
306, with image data decoding, obtain the RGB component and obtain the RGB data, carry out 307 again;
307, the RBG data conversion is become yuv data, carry out 308 again;
308, yuv data is encoded into the I frame.
Preferably,
Execute 303 judge that view data are the I frame after, judge again whether the pairing size of images of this I frame surpasses predefined size value:
If surpass predefined size value, with this I frame down-sampling, carry out 308 then, be re-encoded as the I frame, carry out 304 again and be issued to cable TV network;
If do not surpass predefined size value, carry out 304 and be issued to cable TV network;
Execute 307 the RBG data conversion become yuv data after, judge again whether the pairing size of images of yuv data surpasses predefined size value,
If surpass predefined size value, with this yuv data down-sampling, carry out 308 then and be encoded into the I frame, carry out 304 again and be issued to cable TV network;
If surpass predefined size value, carry out 308 this yuv data is encoded into the I frame, carry out 304 again and be issued to cable TV network.
In the present embodiment; Front-end server obtains the I frame or coded image data is become the I frame from the TV programme code stream of big net; Accomplished the part of the macrooperation amount of method for displaying image of the present invention; Significantly reduced the burden of digital TV terminal CPU, and guaranteed that digital TV terminal can generate video sequence with the I frame smoothly and decode.And in the preferred version of present embodiment, size is issued in the cable TV network above behind the view data down-sampling of predefined size value again, has alleviated the load of bandwidth, and can control the size of display image.
Introduce the image display device embodiment in the embodiment of the invention below, see also Fig. 4, the image display device in the embodiment of the invention comprises:
Preferably, image display device can also comprise a control module:
Control module can be come the time of control of video broadcast through the length of control of video sequence: after receiver module 401 receives the I frames; Control module gives the I frame additional value; The I frame that the frame number of the video sequence that this value representation will generate, control module will add value again sends to generation module 402;
Control module can be come the priority order of control chart picture broadcast through the priority order of controlling the I frame that receives: after receiver module 401 receives a plurality of I frames; Control module sends to generation module with sorted I frame sequence again with a plurality of I frame orderings that receiver module 401 receives;
Whether control module can will resend the I frame that had sent through control and give generation module; Whether the image that comes controls playing to cross will be play again: after receiver module received the I frame, control module backed up this I frame, and buffer memory is put in backup; To send to generation module again through the I frame that backs up; When if the demand that repeats to generate the I-frame video sequence that has sent to generation module is arranged, the control module backup that the I frame is corresponding accesses from buffer memory, redispatches to generation module.
In the image display device of present embodiment; Receiver module receives the I frame data, generates the MPEG video sequence by generation module with reference to the I frame data again, sends to the hardware decoder decoding; And decode without CPU; Reduce the burden of CPU, made full use of the powerful hardware decoding capability of MPEG hardware decoder, improved decoding efficiency.In the preference of present embodiment,, receiver module adds a control module after receiving the I frame, according to user's demand the I frame is controlled, realized image is shown the time, shows order and the function that repeats to show.
Introduce the image display system embodiment in the embodiment of the invention below, see also Fig. 5, the image display system in the embodiment of the invention comprises:
In the image display system of present embodiment; Front-end server sends to digital TV terminal with the I frame, generates video sequence by digital TV terminal with reference to the I frame then, sends to the MPEG hardware decoder and decodes; Rather than decode by CPU; Alleviated the burden of CPU,, improved decoding efficiency greatly based on the powerful hardware sign indicating number ability of separating of MPEG.
Need to prove that in this programme embodiment, the I frame that server generates can be the I frame that only has MPEG-1 information, also can be the I frame that has MPEG-2 information.When generating video sequence, if only have MPEG1 information in the I frame, the video sequence that then generates meets the MPEG1 agreement, if having the information of MPEG2 in the I frame, the video sequence that then generates meets the MPEG2 agreement.In the decoding of MPEG hardware decoder, if the MPEG-1 video sequence, because of Moving Picture Experts Group-1 is upward compatible, promptly the stream of MPEG1 promptly can also can be decoded at the hardware decoder of MPEG-2 in the hardware decoder decoding of MPEG-1; If the MPEG-2 video sequence, can only be in the hardware decoder decoding of MPEG-2.Because in practical application; What digital TV terminal generally adopted all is the MPEG-2 hardware decoder; So what no matter server issued is the I frame of band MPEG1 information or the I frame of band MPEG2 information, the video sequence that the I frame that the hardware decoder of digital TV terminal can both decoding server issues generates.
One of ordinary skill in the art will appreciate that all or part of step in the whole bag of tricks of the foregoing description is to instruct relevant hardware to accomplish through program; This program can be stored in the computer-readable recording medium; Storage medium can comprise: read-only memory (ROM; Read Only Memory), random access memory (RAM, Random Access Memory), disk or CD etc.
More than method for displaying image provided by the present invention, system and device have been carried out detailed introduction; Used concrete example among this paper principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that on embodiment and range of application, all can change, in sum, this description should not be construed as limitation of the present invention.
Claims (6)
1. a method for displaying image is characterized in that, comprising:
The intracoded frame I frame that meets Motion Picture Experts Group's mpeg standard that reception server issues;
Generate the MPEG video sequence with reference to said I frame, accomplish, call generation module by middleware earlier, generate the video sequence that meets mpeg standard with reference to the I frame again, be specially by digital TV terminal CPU:
Generate forward predicted frame P frame with reference to the I frame; The macro block bar quantity of said P frame equates with said macro block bar quantity with reference to the I frame; It is coded macroblocks that the macro block of forming said P frame macro block bar has only first macro block and last macro block; Other macro blocks are empty, and the macro block mode of said coded macroblocks is for travelling forward and motion vector is 0
With reference to I frame and P frame; Generate bi-directional predicted frames B frame; The macro block bar quantity of said B frame equates with said macro block bar quantity with reference to the I frame; It is coded macroblocks that the macro block of forming said B frame macro block bar has only first macro block and last macro block, and other macro blocks be sky, and the macro block mode of said coded macroblocks is for travelling forward and motion vector is 0;
The MPEG video sequence that generates is sent to the MPEG hardware decoder decodes.
2. a method for displaying image is characterized in that, comprising:
Server obtains view data;
Generate the I frame that meets mpeg standard according to said view data;
Said I frame is handed down to digital TV terminal through network;
The I frame that the digital TV terminal reception server issues;
Generate the MPEG video sequence with reference to said I frame, accomplish, call generation module by middleware earlier, generate the video sequence that meets mpeg standard with reference to the I frame again, be specially by digital TV terminal CPU:
Generate forward predicted frame P frame with reference to the I frame; The macro block bar quantity of said P frame equates with said macro block bar quantity with reference to the I frame; It is coded macroblocks that the macro block of forming said P frame macro block bar has only first macro block and last macro block; Other macro blocks are empty, and the macro block mode of said coded macroblocks is for travelling forward and motion vector is 0
With reference to I frame and P frame; Generate bi-directional predicted frames B frame; The macro block bar quantity of said B frame equates with said macro block bar quantity with reference to the I frame; It is coded macroblocks that the macro block of forming said B frame macro block bar has only first macro block and last macro block, and other macro blocks be sky, and the macro block mode of said coded macroblocks is for travelling forward and motion vector is 0;
The MPEG video sequence that generates is sent to the MPEG hardware decoder decodes.
3. method according to claim 2 is characterized in that, saidly generates the step meet mpeg standard I frame according to view data and comprises:
Judge the view data obtain whether for meeting the mpeg standard frame,
If meet the mpeg standard frame, judge whether the said mpeg standard frame that meets is the I frame,
If the I frame is handed down to digital TV terminal through network;
If not the I frame is abandoned the said mpeg standard frame that meets;
If do not meet the mpeg standard frame; Then, obtain three primary colors RGB data, then the RGB data conversion of obtaining is become to meet mpeg standard storage format yuv data said image data decoding; Again said yuv data is encoded into the I frame, is handed down to digital TV terminal through network.
4. an image display device is characterized in that, comprising:
Receiver module is used to receive the I frame;
Generation module is used for generating the MPEG video sequence according to said I frame, is specially:
Generate forward predicted frame P frame with reference to the I frame; The macro block bar quantity of said P frame equates with said macro block bar quantity with reference to the I frame; It is coded macroblocks that the macro block of forming said P frame macro block bar has only first macro block and last macro block; Other macro blocks are empty, and the macro block mode of said coded macroblocks is for travelling forward and motion vector is 0
With reference to I frame and P frame; Generate bi-directional predicted frames B frame; The macro block bar quantity of said B frame equates with said macro block bar quantity with reference to the I frame; It is coded macroblocks that the macro block of forming said B frame macro block bar has only first macro block and last macro block, and other macro blocks be sky, and the macro block mode of said coded macroblocks is for travelling forward and motion vector is 0;
Decoder module is used for that said generation MPEG video sequence is sent to the MPEG hardware decoder and decodes.
5. device according to claim 4 is characterized in that, also comprises a control module:
Can be used for after receiver module receives the I frame, give said I frame additional value, the number of frames of the video sequence that said value representation will generate, the I frame that will add the frame number value again sends to generation module;
Can also be used for after receiver module receives a plurality of I frames,, more sorted I frame sequence sent to generation module said a plurality of I frame orderings;
Can also be used for after receiver module receives the I frame; This I frame is backed up; Buffering area is put in said backup, again the I frame is sent to generation module, repeat to generate the pairing video sequence of I frame that has sent to generation module if desired; The backup that the I frame is corresponding accesses from buffering area, redispatches to generation module.
6. an image display system is characterized in that, comprising:
Server is used to obtain view data, generates the I frame that meets mpeg standard according to said view data, then said I frame is handed down to digital TV terminal through network;
Digital TV terminal is used to receive the I frame, generates according to said I frame to meet the mpeg standard video sequence, is accomplished by digital TV terminal CPU, calls generation module by middleware earlier, generates the video sequence that meets mpeg standard with reference to the I frame again, is specially:
Generate forward predicted frame P frame with reference to the I frame; The macro block bar quantity of said P frame equates with said macro block bar quantity with reference to the I frame; It is coded macroblocks that the macro block of forming said P frame macro block bar has only first macro block and last macro block; Other macro blocks are empty, and the macro block mode of said coded macroblocks is for travelling forward and motion vector is 0
With reference to I frame and P frame; Generate bi-directional predicted frames B frame; The macro block bar quantity of said B frame equates with said macro block bar quantity with reference to the I frame, and it is coded macroblocks that the macro block of forming said B frame macro block bar has only first macro block and last macro block, and other macro blocks be sky; The macro block mode of said coded macroblocks is for travelling forward and motion vector is 0
Again said generation being met the mpeg standard video sequence sends to the MPEG hardware decoder and decodes.
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| CN 201010115540 CN101783950B (en) | 2010-02-11 | 2010-02-11 | Method, system and device for displaying image |
| HK10110724.0A HK1144511A1 (en) | 2010-02-11 | 2010-11-18 | Method, system and device for displaying images |
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| CN 201010115540 CN101783950B (en) | 2010-02-11 | 2010-02-11 | Method, system and device for displaying image |
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| CN1980367A (en) * | 2005-12-06 | 2007-06-13 | 上海乐金广电电子有限公司 | Data recording control method of static image converting into moving image |
| CN100425053C (en) * | 2005-12-22 | 2008-10-08 | 海信集团有限公司 | MPEG format picture display method for set-top box |
| JP4810298B2 (en) * | 2006-05-09 | 2011-11-09 | キヤノン株式会社 | Image encoding apparatus, encoding method, image decoding apparatus, and decoding method |
| TW200948088A (en) * | 2008-02-27 | 2009-11-16 | Ncomputing Inc | System and method for virtual 3D graphics acceleration and streaming multiple different video streams |
-
2010
- 2010-02-11 CN CN 201010115540 patent/CN101783950B/en active Active
- 2010-11-18 HK HK10110724.0A patent/HK1144511A1/en unknown
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| Publication number | Publication date |
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| CN101783950A (en) | 2010-07-21 |
| HK1144511A1 (en) | 2011-02-18 |
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