CN101795390B - Method, system and device for transmitting pictures - Google Patents
Method, system and device for transmitting pictures Download PDFInfo
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Abstract
The invention relates to a method, a system and a device for transmitting video data. The method for transmitting the video data is applied among a video data providing device, a first video device and a second video device. In the method, the video data providing device obtains an picture coding format supported by the first video device; the video data providing device provides a picture, converts the picture into video data according to the picture coding format and transmits the video data to the second video device; and the second video device transmits the video data to the first video device, and the first video device decodes the video data according to the picture coding format to obtain the picture back. The invention really improves the phenomenon of overweight load because compression and transmission mechanisms are both arranged in a conference management device in the known technology, thereby further improving the effect of data transmission in a video conference.
Description
Technical field
The present invention relates to method, system and device that video data transmits, the practice of particularly utilizing the video data generator to obtain coding format and change.
Background technology
In recent years, video conference has become the instrument that busy business community often is used, and the use of video conference needs the situation of long drive except avoiding the participant, more can let holding of meeting more instant, efficient.Because video conference is when transmitting; The picture that will transmit except the picture of place context; Also need transmit the file data that uses in the meeting and operation screen etc.; For example the content of computer screen, electronic whiteboard is transmitted through network with the mode of instant playback, the size that therefore transmits data volume also seems quite important for the Network Transmission of paying attention to frequency range.
In other words, the picture that in video conference, need be transmitted is usually for a plurality of, and image content need take suitable frequency range, and so data volume will form very big burden for network, therefore develop the practice that to utilize the squeezed form.See also Fig. 1, it is sent to the image frame of user's computer the sketch map of teleconference management devices through local side conference management apparatus and network for known technology.
By finding among Fig. 1; The image frame of user's computer 101 outputs at first is sent on the local side conference management apparatus 103 through the connection of data wire; Carry out one with teleconference management devices 107 through network 105 by local side conference management apparatus 103 and link up flow process, so as to the coding format of confirming that teleconference management devices 107 is supported.Then local side conference management apparatus 103 image frame that user's computer 101 is exported through overcompression, be converted into the data kenel of the coding format that teleconference management devices 107 supported; Again the data of this coding format are sent to teleconference management devices 107 through network 105 subsequently; Carry out corresponding reverse data flow path switch by teleconference management devices 107 again, whereby the image frame recovery is appeared for original image frame.
Can find via aforementioned explanation for Fig. 1; The practice of known technology has following defective: at first; User's computer must be connected to the conference management apparatus of local side through the mode of data bus connection, under general situation, because the distance of conference management apparatus and user's intercomputer is unfixing; And the number of user's computer 101 also maybe be not only one, and these data bus connections will make conference space seem mixed and disorderly and be awkward; Secondly, conference management apparatus must be born simultaneously and link up picture compressed format, carried out work such as squeezed and switching network transformat, makes conference management apparatus over-burden and can't reach efficient video conference and carry out process.
Summary of the invention
Problem to be solved by this invention is that the known technology of above-mentioned explanation has the too complicated and conference management apparatus problem that over-burden of line.
The present invention is a kind of video data transmission method; Be applied between a video data generator, one first video-unit and one second video-unit, this video data transmission method comprises the following step: this video data generator is obtained the supported coding format of this first video-unit; This video data generator provides an image frame, and is sent to this second video-unit after converting this image frame to a video data according to this coding format; And this second video-unit is sent to this first video-unit with this video data, and this first video-unit comes this video data is decoded and must be returned this image frame according to this coding format.
According to above-mentioned conception; Video data transmission method of the present invention, wherein this video data generator step of obtaining supported this coding format of this first video-unit is inquired about this first video-unit through this second video-unit by this video data generator and is got.
According to above-mentioned conception, video data transmission method of the present invention, wherein this video data generator is inquired about the step that gets through this second video-unit and is passed this coding format back by this first video-unit to this first video-unit.
According to above-mentioned conception; Video data transmission method of the present invention, wherein this video data generator is inquired about the step that gets and in a plurality of supported coding format that this first video-unit provides, is selected this coding format by this video data generator or this second video-unit to this first video-unit through this second video-unit.
According to above-mentioned conception; Video data transmission method of the present invention, wherein this video data generator step of obtaining supported this coding format of this first video-unit reads a set point of a memory cell by this video data generator and gets.
According to above-mentioned conception, video data transmission method of the present invention, wherein this set point can be a factory setting value, user's preset value or a historical record value.
According to above-mentioned conception; Video data transmission method of the present invention; Wherein transmit information through a wide area network between this first video-unit and this second video-unit, and transmit information through a local area network (LAN) between this video data generator and this second video-unit.
According to above-mentioned conception, video data transmission method of the present invention wherein passes through a network transmission information between this first video-unit, this second video-unit and this video data generator.
According to above-mentioned conception, video data transmission method of the present invention, wherein this video data generator can be accomplished the step that this image frame converts this video data to through a logic circuit unit or a software program according to this coding format.
According to above-mentioned conception; Video data transmission method of the present invention wherein converts this image frame to be sent to this second video-unit behind this video data step according to this coding format with this image frame and comprises following steps: transmits after further converting this video data to an enciphered video data with an encryption acts.
According to above-mentioned conception; Video data transmission method of the present invention, wherein this first video-unit comes this video data is decoded and the step that must return this image frame comprises following steps according to this coding format: this first video-unit carries out a decryption acts with this enciphered video data and must this video data.
According to above-mentioned conception; Video data transmission method of the present invention wherein converts this image frame to be sent to this second video-unit behind this video data step according to this coding format with this image frame and comprises following steps: transmits after further converting this video data to a compressed video data with a compressed action.
According to above-mentioned conception; Video data transmission method of the present invention, wherein this first video-unit comes this video data is decoded and the step that must return this image frame comprises following steps according to this coding format: this first video-unit carries out a decompress action and must this video data with this compressed video data.
According to above-mentioned conception; Video data transmission method of the present invention is sent to this first video-unit through a network after wherein this second video-unit step of this video data being sent to this first video-unit converts this video data into network format data by this second video-unit.
Another aspect of the invention is a kind of video data transfer system, be applied on the network, it comprises: one first video-unit, and signal is connected in this network, and it can support a coding format; One second video-unit, signal is connected in this network; An and video data generator; Signal is connected in this first video-unit and this second video-unit; It obtains this coding format that this first video-unit is supported; And be sent to this second video-unit after converting an image frame to a video data according to this coding format; And after this second video-unit was sent to this first video-unit with this video data, this first video-unit came this video data is decoded and must be returned this image frame according to this coding format.
According to above-mentioned conception, video data transfer system of the present invention, wherein this video data generator comprises: a memory cell, this coding format that its this first video-unit of record is supported.
According to above-mentioned conception, video data transfer system of the present invention, wherein this video data generator comprises: a video pictures generation device, it provides this image frame; An and video data conversion equipment; Be electrically connected on this video pictures generation device; After it obtains this coding format that this first video-unit supports, be sent to this second video-unit through this network after converting this image frame to this video data according to this coding format.
According to above-mentioned conception, video data transfer system of the present invention, wherein this video pictures generation device can be a personal computer, an electronic apparatus, a camera or an image acquiring apparatus.
According to above-mentioned conception, video data transfer system of the present invention, wherein this video data generator converts this image frame to this video data through a software program.
According to above-mentioned conception, video data transfer system of the present invention, wherein this video data generator converts this image frame to this video data through a logical circuit.
According to above-mentioned conception, video data transfer system of the present invention, wherein this coding format defines a compression/de-compression form, to reduce the data volume that this second video-unit is sent to this video data through this network this first video-unit.
According to above-mentioned conception, video data transfer system of the present invention, wherein this coding format defines an encrypt/decrypt form, so as to verifying the transmission relation between this second video-unit and this first video-unit.
Another aspect of the present invention is a kind of video data generator; Be applied to through a network continuous one first video-unit and one second video-unit; And this first video-unit is supported a coding format; This video data generator comprises: a video pictures generation device, and it provides an image frame; An and video data conversion equipment; Signal is connected in this video pictures generation device, this first video-unit and this second video-unit; After it obtains this coding format of this first video-unit support; Be sent to this second video-unit through this network after converting this image frame to a video data according to this coding format; And this second video-unit is sent to this first video-unit with this video data, makes this first video-unit come this video data is decoded and must be returned this image frame according to this coding format.
According to above-mentioned conception; Video data generator of the present invention; Wherein this video data generator more comprises: a memory cell is electrically connected on this video pictures generation device and this video data conversion equipment, this coding format that its this first video-unit of record is supported.
According to above-mentioned conception, video data generator of the present invention, this coding format that wherein this memory cell write down can be a factory setting value, user's preset value or a historical record value.
According to above-mentioned conception, video data generator of the present invention, wherein this video data conversion equipment converts this image frame to this video data through a software program.
According to above-mentioned conception, video data generator of the present invention, wherein this video data conversion equipment converts this image frame to this video data through a logical circuit.
According to above-mentioned conception, video data generator of the present invention, wherein this video pictures generation device can be electrically connected through this network or a physical connection mode with this video data conversion equipment.
According to above-mentioned conception, video data generator of the present invention, wherein this this video data conversion equipment comprises: a delivery unit, signal are connected in this first video-unit; One interpretation unit is electrically connected on this delivery unit, and it obtains this coding format that this first video-unit is supported; And a coding unit, being electrically connected on this interpretation unit and this delivery unit, it converts this image frame this video data to and transmits this video data to this first video-unit through this delivery unit according to this coding format.
According to above-mentioned conception, video data generator of the present invention, wherein this coding unit converts the action of this image frame through a packed data to this video data.
According to above-mentioned conception, video data generator of the present invention, wherein this coding unit converts the action of this image frame through an enciphered video data to this video data.
According to above-mentioned conception, video data generator of the present invention, wherein this video pictures generation device can be a personal computer, an electronic apparatus, a camera or an image acquiring apparatus.
Of the present invention is a kind of video data conversion equipment more on the one hand, and a coding format of supporting according to one first video-unit transmits an image frame, and this video data conversion equipment comprises: a delivery unit, signal are connected in this first video-unit; One interpretation unit is electrically connected on this delivery unit, and it obtains this coding format that this first video-unit is supported; And a coding unit, being electrically connected on this interpretation unit and this delivery unit, it converts this image frame one video data to and transmits this video data to this first video-unit through this delivery unit according to this coding format.
According to above-mentioned conception; Video data conversion equipment of the present invention; This video data conversion equipment more comprises: a receiving element; Signal is connected in one second video-unit that is connected with this first video-unit signal through network and is electrically connected on this interpretation unit, and it obtains this coding format of this first video-unit through this network and this second video-unit, so as to this interpretation unit that is set to of this coding format is provided.
According to above-mentioned conception, video data conversion equipment of the present invention, this video data conversion equipment more comprises: a memory cell is electrically connected on this interpretation unit and this coding unit, this coding format that its this first video-unit of record is supported.
According to above-mentioned conception, video data conversion equipment of the present invention, wherein this interpretation unit reads this coding format that this first video-unit is supported from this memory cell.
According to above-mentioned conception, video data conversion equipment of the present invention, wherein the mode of this coding format of supporting of this first video-unit of this memory cell record is through a factory setting value, user's preset value or a historical record value.
According to above-mentioned conception, video data conversion equipment of the present invention, wherein this coding unit comprises: encrypt/decrypt mechanism module, it is as the checking of the status between this first video-unit and this video data conversion equipment use.
According to above-mentioned conception, video data conversion equipment of the present invention, wherein this coding unit comprises: a compression module, it converts this image frame into this video data with the mode of a low data rate.
According to above-mentioned conception, video data conversion equipment of the present invention, wherein this interpretation unit is chosen this coding format according to a selection rule in a plurality of coding format that this first video-unit is supported.
According to above-mentioned conception, video data conversion equipment of the present invention, wherein this selection rule can be selected or is that a user sets according to a characteristic of this coding format.
A kind of application mode of the present invention is a kind of computer program; Store a software program on it; Realizing a video data transmission method, this video data transmission method comprises the following steps: that this video data generator obtains the supported coding format of one first video-unit to this software program application on a video data generator; This video data generator provides an image frame, and is sent to one second video-unit after converting this image frame to a video data according to this coding format; And this second video-unit is sent to this first video-unit with this video data, and this first video-unit comes this video data decoded according to this coding format and must this image frame.
The present invention has improved known technology really and will compress with transfer mechanism and all be arranged in conference management apparatus over-burden phenomenon, and can further promote the effect of transfer of data in the video conference.
Description of drawings
Fig. 1, it is the video conferencing system configuration diagram of known technology.
Fig. 2, the video conferencing system configuration diagram that it is used for the present invention.
Fig. 3 (a), it is that the line of single assembly in the video data transfer system of the present invention concerns sketch map.
Fig. 3 (b), it is the composition sketch map of video data generator of the present invention.
Fig. 3 (c), it is the internal structure sketch map of video data conversion equipment provided by the present invention.
Fig. 3 (d), it is that the alternative line of single assembly in the video data transfer system of the present invention concerns sketch map.
Fig. 4, it is for system's control flow chart of preferred embodiment of the present invention.
Description of reference numerals in the above-mentioned accompanying drawing is following:
101 user's computers, 21 memory cells
103 local side conference management apparatus, 22 video pictures generation devices
105,205 networks, 23 video data conversion equipments
107 teleconference management devices, 231 interpretation unit
201 video data generators, 232 delivery units
203 second video-units, 233 coding units
207 first video-units, 234 receiving elements
209 local area network (LAN)s, 1101～1302 steps
211 wide area networks
Embodiment
In known technology; Conference management apparatus must be born simultaneously and link up picture compressed format, carry out work such as squeezed and switching network transformat; For effect that promotes transmission and the burden that alleviates conference management apparatus; The present invention is dispensed to single video data generator to the action that the converted image picture becomes the video data picture, and can provide more efficient view data to transmit the practice.
See also Fig. 2; The system architecture sketch map that it is used for the present invention; The present invention is following with the relevant practice of the definition of the video transfer step between teleconference management devices and local side conference management apparatus: at first pass through the local side conference management apparatus by video data generator 201 (for example: personal computer, an electronic apparatus, a camera or an image acquiring apparatus etc.); Promptly; Second video-unit 203 and network 205 to be to obtain the teleconference management devices, that is, and and first video-unit, 207 supported coding format; After converting image frame to a video data according to aforementioned coding format, the image frame that then video data generator 201 is provided is sent to second video-unit 203; Video data after will being changed by this second video-unit 203 more afterwards is sent to teleconference management devices (first video-unit 207), and is come this video data is decoded and must be returned the raw that video data generator 201 is provided according to coding format by teleconference management devices (first video-unit 207) and all the other devices of being connected thereof etc.
Below explanation dissimilar system and device configuration mode when at first explaining that with Fig. 3 the present invention uses, then explain the possible applicable cases of control flow and control procedure with Fig. 4.
See also Fig. 3 (a), it is that the line of single assembly in the video data transfer system of the present invention concerns sketch map.First video-unit 207 and second video-unit 203 among this figure come transmission information through wide area network 211, and pass through a local area network (LAN) 209 transmission information between the video data generator 201 and second video-unit 203.After wherein video data generator 201 is obtained the coding format that first video-unit 207 supported through second video-unit 203; Then be converted into video data to image frame, then be resent to second video-unit 203 according to this coding format; After second video-unit 203 received video data, viewing system planning needed and video data is compressed, encrypts and is encapsulated as action such as network package form again, and then is sent to first video-unit 207; After correspondence/reverse process that last first video-unit 207 is moved before transmission corresponding to video data generator 201 according to coding format and other again, to video data action and must return image frame such as decode.
See also Fig. 3 (b); It is the composition sketch map of video data generator 201 of the present invention, among the figure video data generator 201 can further be divided into video pictures generation device 22 and the electrical connection video data conversion equipment 23 on it of being responsible for providing image frame according to functional attributes again.
In practical application, video pictures generation device 22 possibly be personal computer, electronic apparatus, camera or image acquiring apparatus, mainly is used to provide image frame; And possibly being dedicated convert device, adapter or a logical circuit that can be attached on the video pictures generation device 22, accomplishes by video data conversion equipment 23.Video data generator 201 through second video-unit 203 with this coding format that obtains first video-unit 207 and supported after; After the image frame that video data conversion equipment 23 is provided video pictures generation device 22 according to this coding format converted video data to, video data generator 201 was sent to first video-unit 207 with video data through network 205, second video-unit 203 again.
The coding format here can further define encrypt/decrypt mechanism, so as to the status authentication function of 203 of first video-unit 207 and second video-units is provided; And definition compression/de-compression form, to reduce the data volume that second video-unit 203 is sent to video data through network first video-unit 207.
Except video pictures generation device 22 and video data conversion equipment 23; Video data generator 201 can also comprise memory cell 21, is electrically connected on video pictures generation device 22 and video data conversion equipment 23 and is used for writing down the coding format that first video-unit 207 is supported.It is noted that the memory cell 21 of Fig. 3 (b) is a signal structure, when practical application, memory cell 21 possibly be an independent device or be built in video pictures generation device 22 or video data conversion equipment 23 in (shown in Fig. 3 (c)).Use through memory cell 21; Obtain at video data generator 201 on the practice of the coding format that first video-unit 207 supported; Can or store the last time modes such as historical record setting of line through user's setting, and the speed of the coding format that promote query first video-unit 207 is supported.
See also Fig. 3 (c); It is the schematic internal view of video data conversion equipment 23 provided by the present invention; This video data conversion equipment 23 is connected to first video-unit 207 through signals such as network 205, second video-units 203; And the coding format of being supported according to first video-unit 207 transmits the image frame that video pictures generation device 22 is provided; This video data conversion equipment 23 comprises: delivery unit 232, and signal is connected in first video-unit 207 through second video-unit 203; Interpretation unit 231 is electrically connected on delivery unit 232, and this interpretation unit 231 is used for obtaining and judging the coding format that first video-unit 207 is supported through second video-unit 203; And be electrically connected on the coding unit 233 between delivery unit 232 and the interpretation unit 231, after being converted into video data, the image frame that it is obtained according to aforementioned interpretation unit 231 and the coding format judged is provided video pictures generation device 22 (as: personal computer, electronic apparatus, camera or image acquiring apparatus etc.) is sent to first video-unit 207 through network 205, second video-unit 203 through delivery unit 232.
In addition; Video data conversion equipment 23 in the preferred embodiment of the present invention can also comprise: receiving element 234; Signal is connected in second video-unit 203 and is electrically connected on interpretation unit 231; It is through network 205 and second video-unit 203 and obtain the coding format information that first video-unit 207 is supported indirectly, is set to interpretation unit 231 so as to what coding format was provided.
Video data conversion equipment 23 of the present invention also optionally cooperates the use of memory cell 21, writes down the coding format that this first video-unit 207 is supported.The recording mode here possibly passed through a factory setting value, user's preset value or a historical record value.It should be noted that; The memory cell 21 here possibly be arranged on video data conversion equipment 23 outsides or shown in Fig. 3 (c), be arranged at the inside of video data conversion equipment 23; In the latter case, this memory cell 21 will be electrically connected on interpretation unit 231 and coding unit 233.
The coding unit 233 here possibly have compound function, for example, comprises encrypt/decrypt mechanism module and compression module etc.Under being used of the encrypting module of the deciphering module of first video-unit 207 and video data conversion equipment 23; Status between participant authentication function can be provided; The action of the image frame that provides through data encryption converted to behind the enciphered video data again through be sent to first video-unit 207 of second video-unit 203 with network 205, just can avoid the situation that video data leaks when transmitting through network.Action that then can be through packed data as for the use of compression module converts image frame into compressed video data with the mode of lower data rate; The digital coding mode that H.261, H.263, H.263+, H.264 waits for example at present commonly used, and then alleviate the volume of transmitted data when transmitting.
Subsidiary one carry be; Although in the accompanying drawings video data generator 201 is divided into video pictures generation device 22 and video data conversion equipment 23 with the mode of application of logic circuit module; But when practical application; Video data generator 201 possibly convert image frame to video data through the mode of software program, and need not distinguish the module that step that picture and translation data form are provided is carried out especially.Through storing the computer program of software program on it, this software program application is on the video data generator 201 to realize the transmission of video data.
See also Fig. 3 (d), it is that the alternative line of single assembly in the video data transfer system of the present invention concerns sketch map.The video data transfer system here comprises: first video-unit 207, second video-unit 203 and video data generator 201; All be connected in network 205 to each other through signal; The signal ways of connecting possibly be cable network or wireless network here, and homogeneity or heterogeneous network are possible.In this kind application, relevant judgement flow process all is as good as with the aforementioned practice, only is that the data transfer interface mode between the device is different, in this its details that repeats no more.
See also Fig. 4 again, it is system's control flow chart of preferred embodiment of the present invention.Below explanation will explain respectively according to the step among the figure, and with can applicable alternate variation explaining in the control flow.
In the step 1101, video data generator 201 is obtained first video-unit, 207 supported coding format.The video data generator 201 here can be a single device; Or constitute by video pictures generation device 22 and 23 of video data conversion equipments; Wherein the corresponding relation of video pictures generation device 22 and video data conversion equipment 23 can be one to one, multi-to-multi or many-to-one mode, video pictures generation device 22 then can be realized through modes such as wire/radio network, physical data cable, adapter, application software with video data conversion equipment 23 data exchange mechanism to each other.
Video data generator 201 is obtained the mode of coding format maybe be via following mode; At first; Video data generator 201 can be after first video-unit 207 and second video-unit 203 be set up line, inquire about through second video-unit 203 and network 205 and obtain the coding format that first video-unit 207 is passed back; Secondly; First video-unit 207 can possibly be a plurality of kinds in order to the coding format of supporting; Therefore in second video-unit 203 or video data generator 201, can select the coding format of actual use through a selection rule; For example set one group of priority of using coded format, or select, in case when the coding format supported that first video-unit 207 is passed back is not only a kind of according to the characteristics such as compression ratio of coding format by the user; Just can be through the application of selection rule, the result that interpretation unit 231 is chosen sends coding unit 233 to; In addition; The coding format that first video-unit 207 is supported can also be recorded in the memory cell 21 that is electrically connected on video pictures generation device 22 and video data conversion equipment 23 in advance, and when process is carried out in video conference, offers the video data generator by memory cell 21.The memory cell 21 here possibly be self-contained unit or be embedded in the video pictures generation device 22/ video data conversion equipment 23 that the setting of storage can be that modes such as factory setting value, user's preset value or historical record value offer interpretation unit 231 and coding unit 233.
In the step 1201, video data generator 201 provides image frame, and passes through the practice of logic circuit unit or software application, according to coding format image frame is converted into video data.In addition, under the consideration that promotes transfer rate, can also video data further be converted into compressed video data with the action of data compression.
In the step 1202, video data generator 201 is sent to second video-unit 203 with (compression) video data of its output.The line relation of the visual video data generator 201 of the load mode here and second video-unit 203 why; And can use different data transmission interfaces to transmit, for example the digital data line through physics, local area network (LAN) 209, wide area network, wire/radio network etc.
In the step 1301, second video-unit 203 is sent to first video-unit 207 with video data.In this step, after the line situation of second video-unit 203 visual itself and first video-unit 207 converts video data into the network format data, through (wide area) network the network format data are sent to first video-unit 207 again.If in the video conference between the participant data of line need consider the situation of authentication; Transmission again after then also can be before second video-unit 203 transmits further converting video data to enciphered video data with an encryption acts so can guarantee to have the content of the deciphering video data that the participant of mandate can be correct.
In the step 1302; First video-unit 207 comes this video data is decoded and must be returned image frame according to this coding format; The decoding action here is corresponding to the coding action before transmitting; Therefore under the video data process situation of processed compressed, the video data that first video-unit 207 needs to compress carries out reverse decompression action and must return video data; If the video data of encrypted mistake then need carry out decryption acts again and obtain original video data after first video-unit 207 is received before transmission, again video data is converted into original image frame at last.
Can arrange in pairs or groups other device of first video-unit 207 here is presented on video data in face of the long-range user with image frame with application software or hardware mode; Then accomplish the transmission action of picture, provide corresponding picture that the practice is provided as for the long-range conference management apparatus video data generator 201 of the present invention of can certainly arranging in pairs or groups.
Through above-mentioned Fig. 2 to Fig. 4 the architecture configuration of core the control practice, system and device among the present invention and the application of control flow are described respectively; Can find out that the present invention has improved known technology really and will compress with transfer mechanism and all be arranged in conference management apparatus over-burden phenomenon, and can further promote the effect of transfer of data in the video conference.
Though the present invention has disclosed like above-mentioned preferred embodiment, yet it is not in order to limiting the present invention, and the present invention must be appointed by those of ordinary skills and executes that the craftsman thinks and be to modify as all, does not take off as attaching the scope of claim institute desire protection.
Claims (17)
1. a video data transmission method is applied between a video data generator, one first video-unit and one second video-unit, and this video data transmission method comprises the following step:
This video data generator is obtained the supported coding format of this first video-unit;
This video data generator provides an image frame, and is sent to this second video-unit after converting this image frame to a video data according to this coding format; And
This second video-unit is sent to this first video-unit with this video data, and this first video-unit comes this video data is decoded and must be returned this image frame according to this coding format.
2. video data transmission method as claimed in claim 1; Wherein this video data generator step of obtaining supported this coding format of this first video-unit is inquired about this first video-unit through this second video-unit by this video data generator and is got, or is read a set point of a memory cell and got by this video data generator.
3. video data transmission method as claimed in claim 2; Wherein this video data generator is inquired about the step that gets through this second video-unit to this first video-unit and can be passed this coding format back by this first video-unit, also can in a plurality of supported coding format that this first video-unit provides, select this coding format by this video data generator or this second video-unit.
4. video data transmission method as claimed in claim 1 wherein passes through a network transmission information between this first video-unit, this second video-unit and this video data generator.
5. a video data transfer system is applied on the network, and it comprises:
One first video-unit, signal is connected in this network, and it can support a coding format;
One second video-unit, signal is connected in this network; And
One video data generator; Signal is connected in this first video-unit and this second video-unit; It obtains this coding format that this first video-unit is supported; And be sent to this second video-unit after converting an image frame to a video data according to this coding format, and after this second video-unit is sent to this first video-unit with this video data, this first video-unit comes this video data is decoded and must be returned this image frame according to this coding format.
6. video data transfer system as claimed in claim 5, wherein this video data generator comprises:
One memory cell, this coding format that its this first video-unit of record is supported.
7. video data transfer system as claimed in claim 5, wherein this video data generator comprises:
One video pictures generation device, it provides this image frame; And
One video data conversion equipment; Be electrically connected on this video pictures generation device; After it obtains this coding format that this first video-unit supports, be sent to this second video-unit through this network after converting this image frame to this video data according to this coding format.
8. video data generator be applied to one first video-unit and one second video-unit that link to each other through a network, and this first video-unit is supported a coding format, and this video data generator comprises:
One video pictures generation device, it provides an image frame; And
One video data conversion equipment; Signal is connected in this video pictures generation device, this first video-unit and this second video-unit; After it obtains this coding format of this first video-unit support; Be sent to this second video-unit through this network after converting this image frame to a video data according to this coding format; And this second video-unit is sent to this first video-unit with this video data, makes this first video-unit come this video data is decoded and must be returned this image frame according to this coding format.
9. video data generator as claimed in claim 8, wherein this video data generator more comprises:
One memory cell is electrically connected on this video pictures generation device and this video data conversion equipment, this coding format that its this first video-unit of record is supported.
10. video data generator as claimed in claim 8, wherein this video data conversion equipment converts this image frame to this video data through a software program or a logical circuit.
11. video data generator as claimed in claim 8, wherein this video pictures generation device can be electrically connected through this network or a physical connection mode with this video data conversion equipment.
12. video data generator as claimed in claim 8, wherein this video data conversion equipment comprises:
One delivery unit, signal are connected in this first video-unit;
One interpretation unit is electrically connected on this delivery unit, and it obtains this coding format that this first video-unit is supported; And
One coding unit is electrically connected on this interpretation unit and this delivery unit, and it converts this image frame this video data to and transmit this video data to this first video-unit through this delivery unit according to this coding format.
13. video data generator as claimed in claim 12, wherein this coding unit converts the action of this image frame through a packed data or an enciphered video data to this video data.
14. a video data conversion equipment, a coding format of supporting according to one first video-unit transmits an image frame, and this video data conversion equipment comprises:
One delivery unit, signal are connected in this first video-unit;
One interpretation unit is electrically connected on this delivery unit, and it obtains this coding format that this first video-unit is supported; And
One coding unit is electrically connected on this interpretation unit and this delivery unit, and it converts this image frame one video data to and transmit this video data to this first video-unit through this delivery unit according to this coding format.
15. video data conversion equipment as claimed in claim 14, this video data conversion equipment more comprises:
One receiving element; Signal is connected in one second video-unit that is connected with this first video-unit signal through network and is electrically connected on this interpretation unit; It obtains this coding format of this first video-unit through this network and this second video-unit, so as to this interpretation unit that is set to of this coding format is provided.
16. video data conversion equipment as claimed in claim 14, this video data conversion equipment more comprises:
One memory cell is electrically connected on this interpretation unit and this coding unit, this coding format that its this first video-unit of record is supported, and this interpretation unit reads this coding format that this first video-unit is supported from this memory cell.
17. video data conversion equipment as claimed in claim 14; Wherein these selection rules are set according to the characteristic selection or a user of this coding format in this interpretation unit, choose this coding format in a plurality of coding format that this first video-unit is supported certainly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010130211 CN101795390B (en) | 2010-03-05 | 2010-03-05 | Method, system and device for transmitting pictures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010130211 CN101795390B (en) | 2010-03-05 | 2010-03-05 | Method, system and device for transmitting pictures |
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| Publication Number | Publication Date |
|---|---|
| CN101795390A CN101795390A (en) | 2010-08-04 |
| CN101795390B true CN101795390B (en) | 2012-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010130211 Expired - Fee Related CN101795390B (en) | 2010-03-05 | 2010-03-05 | Method, system and device for transmitting pictures |
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| CN100473149C (en) * | 2006-12-14 | 2009-03-25 | 北京中星微电子有限公司 | A video conference image processing system |
| CN100536475C (en) * | 2006-12-19 | 2009-09-02 | 中兴通讯股份有限公司 | Method for consulting multimedia coding and decoding capacity of 3G audio frequency gateway |
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