CN104079950A - Video output processing method, device and system and video receiving processing method, device and system - Google Patents
Video output processing method, device and system and video receiving processing method, device and system Download PDFInfo
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Abstract
The invention discloses a video output processing method. The method comprises the steps of performing front-and-back frame difference comparison on frames of a video, and finding out continuously-repeated frames; retaining the frames with the preset number in the N continuously-repeated frames, and using interpolation frame identification codes to replace the rest of frames; outputting the retained frames with the preset number and the interpolation frame identification codes. The invention further discloses a corresponding video output processing device, a video receiving processing method and device and a video output and receiving processing system. Compared with the prior art, according to the technical scheme, it can be ensured that under the conditions of the poor network environment and limited file transmission speed, the video is displayed in a smooth or high-definition mode through interactive writing of a server side and a client side.
Description
Technical field
The present invention relates to network communication and field of video processing, relate more specifically to the methods, devices and systems that a kind of video output is processed, video reception is processed.
Background technology
In recent years, the Existence and development of the Internet allows people more and more rely on and from the Internet, obtains various information, enjoys various recreations, wherein from Internet Server, obtain video file and the mode play in this locality allows the convenient and swift dynamic image information of obtaining efficiently of people, yet particularly under wireless communication networks environment, the restriction of bandwidth and transmission speed makes on mobile device, to watch the smooth degree of video to be a greater impact in the situation that network delay rate is higher or video frame rate is higher in current network environment.
During the hardware handles videos such as television set, one of the countermeasure that can take is the interframe of input video to be inserted to benefit frame guarantee the output of frame per second, and then level and smooth result of broadcast is provided, and reduces the blurring effect of video.Yet on intelligent mobile terminal, because of the configuration difference of equipment and the diversity of video content form, cause it cannot take the processing mode as television set.Thereby need a kind of processing scheme that improves video transmission efficiency, strengthens video playback fluency badly.
Summary of the invention
For this reason, need to provide the methods, devices and systems that a kind of video output is processed, video reception is processed.
For achieving the above object, inventor provides a kind of video output processing method, comprises step:
Each frame of video is carried out to front and back frame difference comparison, find out the frame of continuous repetition;
To the N of a continuous repetition frame, retain the wherein frame of predetermined number, and replace all the other frames with interpolated frame identification code;
Frame and the interpolated frame identification code of the predetermined number of output through retaining.
Further, in described video output processing method, step " frame and the interpolated frame identification code of the predetermined number of output through retaining " specifically comprises: the frame of the predetermined number through retaining or interpolated frame identification code compresss after processing and exported.
Further, in described video output processing method, the content of described interpolated frame identification code comprises interpolated frame message structure or interpolated frame content format.
Further, in described video output processing method, the algorithm of step " frame difference comparison before and after each frame of video is carried out " is block matching algorithm.
Inventor also provides a kind of video output processing apparatus, comprises comparing unit, interpolated frame processing unit and output unit;
Described comparing unit, for each frame of video is carried out to front and back frame difference comparison, is found out the frame of continuous repetition;
Described interpolated frame processing unit, for to the N of a continuous repetition frame, retains the wherein frame of predetermined number, and replaces all the other frames with interpolated frame identification code;
Described output unit is for exporting frame and the interpolated frame identification code of the predetermined number through retaining.
Further, described video output processing apparatus also comprises compression unit; Described compression unit compresses processing for frame or the interpolated frame identification code of the predetermined number to through retaining.
Further, in described video output processing apparatus, the content of described interpolated frame identification code comprises interpolated frame message structure or interpolated frame content format; Before and after comparing unit carries out each frame of video, frame difference algorithm more used is block matching algorithm.
Inventor also provides a kind of video reception processing method, comprises step:
According to the primitive frame information of interpolated frame identification code reduction interpolated frame;
Combination retention frame and the primitive frame through reducing.
Further, in described video reception processing method, step " according to the primitive frame information of interpolated frame identification code reduction interpolated frame " also comprises step before:
Video information compression bag is carried out to decompression operation, obtain retention frame or interpolated frame identification code.
Inventor also provides a kind of video reception processing unit, comprises reduction unit and assembled unit;
Described reduction unit is used for according to the primitive frame information of interpolated frame identification code reduction interpolated frame;
Described assembled unit is for combining retention frame and the primitive frame through reducing.
Further, in described video reception processing unit, also comprise decompress(ion) unit, for video information compression bag is carried out to decompression operation, obtain retention frame or interpolated frame identification code.
The treatment system that inventor also provides a kind of video output and received, comprises service end and client;
Described service end comprises comparing unit, interpolated frame processing unit and output unit;
Described comparing unit, for each frame of video is carried out to front and back frame difference comparison, is found out the frame of continuous repetition;
Described interpolated frame processing unit, for to the N of a continuous repetition frame, retains the wherein frame of predetermined number, and replaces all the other frames with interpolated frame identification code;
Described output unit is for exporting frame and the interpolated frame identification code of the predetermined number through retaining;
Described client comprises reduction unit and assembled unit;
Described reduction unit is used for according to the primitive frame information of interpolated frame identification code reduction interpolated frame;
Described assembled unit is for combining retention frame and the primitive frame through reducing.
Further, in described video output and the treatment system receiving, described service end also comprises compression unit; Described compression unit compresses processing for frame or the interpolated frame identification code of the predetermined number to through retaining;
Described client also comprises decompress(ion) unit, for video information compression bag is carried out to decompression operation, obtains retention frame or interpolated frame identification code.
Be different from prior art, that technique scheme can guarantee is not good enough in network environment, file transfer speed is limited in the situation that, and the mutual writing by service end and client guarantees video smoothness or high definition and shows.
Accompanying drawing explanation
Fig. 1 is the flow chart of the method that video output is processed described in an embodiment of the present invention;
Fig. 2 is for for illustrating the schematic diagram of the interpolated frame pattern of the method that video output is processed described in an embodiment of the present invention;
Fig. 3 is the module diagram of the device that video output is processed described in an embodiment of the present invention;
Fig. 4 is the flow chart of the method that video reception is processed described in an embodiment of the present invention;
Fig. 5 is the module diagram of the device that video reception is processed described in an embodiment of the present invention;
Fig. 6 is the module diagram of the system of video output and reception & disposal described in an embodiment of the present invention.
Description of reference numerals:
31-comparing unit
32-interpolated frame processing unit
33-output unit
34-compression unit
51-reduction unit
52-assembled unit
53-decompress(ion) unit
3-service end
5-client
Embodiment
By describe in detail technical scheme technology contents, structural feature, realized object and effect, below in conjunction with specific embodiment and coordinate accompanying drawing to be explained in detail.
Referring to Fig. 1, is the flow chart of the method that described in an embodiment of the present invention, video output is processed; Described method comprises step:
S11, each frame of video is carried out to front and back frame difference comparison, find out the frame of continuous repetition;
S12, to the N of a continuous repetition frame, retain the wherein frame of predetermined number, and replace all the other frames with interpolated frame identification code;
S13, the frame of the predetermined number through retaining or interpolated frame identification code compresss after processing and exported.
Wherein, the algorithm to frame difference comparison adopts before and after each frame of video described in step S11 is block matching algorithm (Block Matching Algorithm, BMA), its main thought is a frame image to be divided into the piece of NxN size, then each piece is searched the piece mating most in the hunting zone of former frame according to certain matching criterior, the displacement difference obtaining is called motion vector, and based on motion vector, finds out the frame of continuous repetition.
In step S12, one group of consecutive identical repeating frame is retained to the wherein frame of predetermined number, and replace the processing method of all the other frames to comprise three kinds of interpolated frame patterns with interpolated frame identification code, be the default mode of taking in present embodiment: retain this and organize first frame or the tail frame in consecutive identical repeating frame, all the other each frames are replaced with interpolated frame identification code.The interpolated frame pattern that also can take in other embodiments has 4m pattern and 2m pattern, and wherein the way of 4m pattern is that one group of consecutive identical repeating frame is retained to wherein four frames, and all the other replace with interpolated frame identification code; The way of 2m pattern is that one group of consecutive identical repeating frame is retained to head and the tail two frames wherein, and all the other each frames replace with interpolated frame identification code; Refer to Fig. 2, shown in Fig. 2, be for the schematic diagram of the interpolated frame 2m pattern of the method that described video output is processed is described.
In practical application, can decide and adopt which kind of interpolated frame pattern to process according to the hardware performance of video source content frame per second, code check and client machine.In fact, the processing speed when smoothing degree of video is processed with reduction is two conflicting factors, for balance comprehensive treatment effect, need to these two, accept or reject as the case may be, and this is mainly reflected in choosing interpolated frame pattern.
Interpolated frame identification code comprises essential information plot structure and content frame form two parts, and for example, the content of essential information plot structure can be:
Wherein, " Int nFrameType " represents interpolated frame pattern, as 4m pattern; 2m pattern or default mode;
" Char FormatFlag[12] " represent that video format identifies;
" Long OrginFrame " represents the frame value of original video content;
" Long CurrentFrame " represents the frame value of existing video content;
" FrameInfo frameinfo[60] " the highest benefit frame 60 frames of representative.
The content of content frame form can be:
Wherein, " Int nFrameBit " represents interpolated frame place value;
" Char*FormatFlag " represents elongated video format sign.
Referring to Fig. 3, is the module diagram of the device that described in an embodiment of the present invention, video output is processed; Described video output processing apparatus comprises comparing unit 31, interpolated frame processing unit 32 and output unit 33;
Described comparing unit 31, for each frame of video is carried out to front and back frame difference comparison, is found out the frame of continuous repetition;
Described interpolated frame processing unit 32, for to the N of a continuous repetition frame, retains the wherein frame of predetermined number, and replaces all the other frames with interpolated frame identification code;
Described output unit 33 is for exporting frame and the interpolated frame identification code of the predetermined number through retaining.
Further, described video output processing apparatus also comprises compression unit 34; Described compression unit 34 compresses processing for frame or the interpolated frame identification code of the predetermined number to through retaining.
Further, in described video output processing apparatus, the content of described interpolated frame identification code comprises interpolated frame message structure or interpolated frame content format; Before and after 31 pairs of each frames of video of comparing unit carry out, frame difference algorithm more used is block matching algorithm.
Wherein, the algorithm that before and after each frame of 31 pairs of videos of comparing unit, frame difference comparison adopts is block matching algorithm (Block Matching Algorithm, BMA), its main thought is a frame image to be divided into the piece of NxN size, then each piece is searched the piece mating most in the hunting zone of former frame according to certain matching criterior, the displacement difference obtaining is called motion vector, and based on motion vector, finds out the frame of continuous repetition.
32 pairs of one group of consecutive identical repeating frames of interpolated frame processing unit retain the wherein frame of predetermined number, and replace the processing method of all the other frames to comprise three kinds of interpolated frame patterns with interpolated frame identification code, be the default mode of taking in present embodiment: retain this and organize first frame or the tail frame in consecutive identical repeating frame, all the other each frames are replaced with interpolated frame identification code.The interpolated frame pattern that also can take in other embodiments has 4m pattern and 2m pattern, and wherein the way of 4m pattern is that one group of consecutive identical repeating frame is retained to wherein four frames, and all the other replace with interpolated frame identification code; The way of 2m pattern is that one group of consecutive identical repeating frame is retained to head and the tail two frames wherein, and all the other each frames replace with interpolated frame identification code.
In practical application, can decide and adopt which kind of interpolated frame pattern to process according to the hardware performance of video source content frame per second, code check and client machine.
Interpolated frame identification code comprises essential information plot structure and content frame form two parts, and for example, the content of essential information plot structure can be:
Wherein, " Int nFrameType " represents interpolated frame pattern, as 4m pattern; 2m pattern or default mode;
" Char FormatFlag[12] " represent that video format identifies;
" Long OrginFrame " represents the frame value of original video content;
" Long CurrentFrame " represents the frame value of existing video content;
" FrameInfo frameinfo[60] " the highest benefit frame 60 frames of representative.
The content of content frame form can be:
Wherein, " Int nFrameBit " represents interpolated frame place value;
" Char*FormatFlag " represents elongated video format sign.
Referring to Fig. 4, is the flow chart of the method for video reception processing described in an embodiment of the present invention; Described method comprises step:
S41, video information compression bag is carried out to decompression operation, obtain retention frame or interpolated frame identification code;
S42, according to the primitive frame information of interpolated frame identification code reduction interpolated frame;
S43, combination retention frame and the primitive frame through reducing.
Particularly, first the compressed video obtaining is carried out to decompression operation; Video to uncompressed, step 41 can be saved, and directly reduces the primitive frame information work of interpolated frame.
Referring to Fig. 5, is the module diagram of the device of video reception processing described in an embodiment of the present invention; Described video reception processing unit comprises reduction unit 51 and assembled unit 52;
Described reduction unit 51 is for according to the primitive frame information of interpolated frame identification code reduction interpolated frame;
Described assembled unit 52 is for combining retention frame and the primitive frame through reducing.
Further, in described video reception processing unit, also comprise decompress(ion) unit 53, for video information compression bag is carried out to decompression operation, obtain retention frame or interpolated frame identification code.
Referring to Fig. 6, is the module diagram of the system of video output and reception & disposal described in an embodiment of the present invention.Described system comprises service end 3 and client 5;
Described service end 3 comprises comparing unit 31, interpolated frame processing unit 32 and output unit 33;
Described comparing unit 31, for each frame of video is carried out to front and back frame difference comparison, is found out the frame of continuous repetition;
Described interpolated frame processing unit 32, for to the N of a continuous repetition frame, retains the wherein frame of predetermined number, and replaces all the other frames with interpolated frame identification code;
Described output unit 33 is for exporting frame and the interpolated frame identification code of the predetermined number through retaining.
Wherein, the algorithm that before and after each frame of 31 pairs of videos of comparing unit, frame difference comparison adopts is block matching algorithm (Block Matching Algorithm, BMA), its main thought is a frame image to be divided into the piece of NxN size, then each piece is searched the piece mating most in the hunting zone of former frame according to certain matching criterior, the displacement difference obtaining is called motion vector, and based on motion vector, finds out the frame of continuous repetition.
32 pairs of one group of consecutive identical repeating frames of interpolated frame processing unit retain the wherein frame of predetermined number, and replace the processing method of all the other frames to comprise three kinds of interpolated frame patterns with interpolated frame identification code, be the default mode of taking in present embodiment: retain this and organize first frame or the tail frame in consecutive identical repeating frame, all the other each frames are replaced with interpolated frame identification code.The interpolated frame pattern that also can take in other embodiments has 4m pattern and 2m pattern, and wherein the way of 4m pattern is that one group of consecutive identical repeating frame is retained to wherein four frames, and all the other replace with interpolated frame identification code; The way of 2m pattern is that one group of consecutive identical repeating frame is retained to head and the tail two frames wherein, and all the other each frames replace with interpolated frame identification code.
In practical application, can decide and adopt which kind of interpolated frame pattern to process according to the hardware performance of video source content frame per second, code check and client machine.
Interpolated frame identification code comprises essential information plot structure and content frame form two parts, and for example, the content of essential information plot structure can be:
Wherein, " Int nFrameType " represents interpolated frame pattern, as 4m pattern; 2m pattern or default mode;
" Char FormatFlag[12] " represent that video format identifies;
" Long OrginFrame " represents the frame value of original video content;
" Long CurrentFrame " represents the frame value of existing video content;
" FrameInfo frameinfo[60] " the highest benefit frame 60 frames of representative.
The content of content frame form can be:
Wherein, " Int nFrameBit " represents interpolated frame place value;
" Char*FormatFlag " represents elongated video format sign.
Described client 5 comprises reduction unit 51 and assembled unit 52;
Described reduction unit 51 is for according to the primitive frame information of interpolated frame identification code reduction interpolated frame;
Described assembled unit 52 is for combining retention frame and the primitive frame through reducing.
Further, in described video output and the treatment system receiving, described service end 3 also comprises compression unit 34; Described compression unit 34 compresses processing for frame or the interpolated frame identification code of the predetermined number to through retaining;
Described client 5 also comprises decompress(ion) unit 53, for video information compression bag is carried out to decompression operation, obtains retention frame or interpolated frame identification code.
All or part of step in the method that above-described embodiment relates to can come the hardware that instruction is relevant to complete by program, described program can be stored in the storage medium that computer equipment can read, for carrying out all or part of step described in the various embodiments described above method.Described computer equipment, such as personal computer, server, the network equipment, intelligent mobile terminal, intelligent home device, wearable intelligent equipment, vehicle intelligent equipment etc.; Described storage medium, such as: RAM, ROM, magnetic disc, tape, CD, flash memory, USB flash disk, portable hard drive, storage card, memory stick, webserver stores, network cloud storage etc.
The foregoing is only embodiments of the invention; not thereby limit scope of patent protection of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes specification of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (13)
1. a video output processing method, comprises step:
Each frame of video is carried out to front and back frame difference comparison, find out the frame of continuous repetition;
To the N of a continuous repetition frame, retain the wherein frame of predetermined number, and replace all the other frames with interpolated frame identification code;
Frame and the interpolated frame identification code of the predetermined number of output through retaining.
2. in video output processing method as claimed in claim 1, step " frame and the interpolated frame identification code of the predetermined number of output through retaining " specifically comprises: the frame of the predetermined number through retaining or interpolated frame identification code compresss after processing and exported.
3. in video output processing method as claimed in claim 1 or 2, the content of described interpolated frame identification code comprises interpolated frame message structure or interpolated frame content format.
4. in video output processing method as claimed in claim 1 or 2, the algorithm of step " frame difference comparison before and after each frame of video is carried out " is block matching algorithm.
5. a video output processing apparatus, comprises comparing unit, interpolated frame processing unit and output unit;
Described comparing unit, for each frame of video is carried out to front and back frame difference comparison, is found out the frame of continuous repetition;
Described interpolated frame processing unit, for to the N of a continuous repetition frame, retains the wherein frame of predetermined number, and replaces all the other frames with interpolated frame identification code;
Described output unit is for exporting frame and the interpolated frame identification code of the predetermined number through retaining.
6. video output processing apparatus as claimed in claim 5 also comprises compression unit; Described compression unit compresses processing for frame or the interpolated frame identification code of the predetermined number to through retaining.
7. in the video output processing apparatus as described in claim 5 or 6, the content of described interpolated frame identification code comprises interpolated frame message structure or interpolated frame content format; Before and after comparing unit carries out each frame of video, frame difference algorithm more used is block matching algorithm.
8. a video reception processing method, comprises step:
According to the primitive frame information of interpolated frame identification code reduction interpolated frame;
Combination retention frame and the primitive frame through reducing.
9. in video reception processing method as claimed in claim 8, step " according to the primitive frame information of interpolated frame identification code reduction interpolated frame " also comprises step before:
Video information compression bag is carried out to decompression operation, obtain retention frame or interpolated frame identification code.
10. a video reception processing unit, comprises reduction unit and assembled unit;
Described reduction unit is used for according to the primitive frame information of interpolated frame identification code reduction interpolated frame;
Described assembled unit is for combining retention frame and the primitive frame through reducing.
In 11. video reception processing unit as claimed in claim 10, also comprise decompress(ion) unit, for video information compression bag is carried out to decompression operation, obtain retention frame or interpolated frame identification code.
12. 1 kinds of video outputs and the treatment system receiving, comprise service end and client;
Described service end comprises comparing unit, interpolated frame processing unit and output unit;
Described comparing unit, for each frame of video is carried out to front and back frame difference comparison, is found out the frame of continuous repetition;
Described interpolated frame processing unit, for to the N of a continuous repetition frame, retains the wherein frame of predetermined number, and replaces all the other frames with interpolated frame identification code;
Described output unit is for exporting frame and the interpolated frame identification code of the predetermined number through retaining;
Described client comprises reduction unit and assembled unit;
Described reduction unit is used for according to the primitive frame information of interpolated frame identification code reduction interpolated frame;
Described assembled unit is for combining retention frame and the primitive frame through reducing.
In the treatment system of 13. video outputs as claimed in claim 12 and reception, described service end also comprises compression unit; Described compression unit compresses processing for frame or the interpolated frame identification code of the predetermined number to through retaining;
Described client also comprises decompress(ion) unit, for video information compression bag is carried out to decompression operation, obtains retention frame or interpolated frame identification code.
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