CN108769645B - Video synchronization processing method and device - Google Patents
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Abstract
The invention provides a video synchronous processing method and video synchronous processing equipment. The method is applied to a video synchronization processing apparatus including a plurality of 3D video processing devices, and includes: each 3D video processing device performs left-eye and right-eye separation on the received 3D video stream according to the received same external field synchronous signal and control signal to obtain a left-eye signal and a right-eye signal; and each 3D video processing device sends the left eye signal and the right eye signal to the 3D display equipment according to the outfield synchronizing signal. Therefore, the multi-channel 3D video stream can be synchronously processed and synchronously output, and the problem of asynchronous output caused by factors such as power on and off, resetting, disconnection of a 3D signal source wire and the like of the acquisition equipment of the multi-channel 3D video stream is solved.
Description
Technical Field
The invention relates to the technical field of video processing, in particular to a video synchronous processing method and video synchronous processing equipment.
Background
3D video signals are increasingly popularized in daily life of people, and high-performance ultrahigh-resolution 3D signal source output equipment is also increasingly widely used. A3D signal source output device outputs a plurality of paths of 3D video signals, and the 3D video signals need to be processed before being displayed. Along with the improvement of the performance of the output equipment of the 3D signal source, the current defect that the viewing effect is directly influenced by the asynchronous processing of a plurality of paths of 3D video signals exists.
Disclosure of Invention
In order to overcome the above-mentioned deficiencies in the prior art, embodiments of the present invention provide a video synchronization processing method and apparatus, which can perform synchronization processing on multiple 3D video streams and synchronously output a left-eye signal and a right-eye signal.
In a first aspect, an embodiment of the present invention provides a video synchronization processing method, which is applied to a video synchronization processing apparatus, where the video synchronization processing apparatus includes a plurality of 3D video processing devices, and the method includes: each 3D video processing device performs left-eye and right-eye separation on the received 3D video stream according to the received same external field synchronous signal and control signal to obtain a left-eye signal and a right-eye signal; and each 3D video processing device sends the left eye signal and the right eye signal to 3D display equipment according to the outfield synchronizing signal.
Optionally, the step of performing left-eye and right-eye separation on the received 3D video stream by each 3D video processing device according to the received same external field synchronization signal and control signal to obtain a left-eye signal and a right-eye signal includes: generating a synchronous separation signal according to the received external field synchronous signal and the control signal; and performing left-right eye separation on the 3D video stream according to the synchronous separation signal and the 3D video stream.
Optionally, the step of generating a sync separation signal according to the received external field sync signal and the control signal includes: detecting the rising edge and the falling edge of the external field synchronous signal; when the rising edge of the external field synchronous signal is detected, generating a low-level synchronous separation signal; when the falling edge of the external field synchronous signal is detected, detecting the rising edge and the falling edge of the control signal; generating a high-level synchronous separation signal when the rising edge of the control signal is detected; generating a low-level synchronous separation signal when a falling edge of the control signal is detected; when the rising edge of the external field synchronous signal, the rising edge of the control signal and the falling edge of the control signal are not detected, keeping the synchronous separation signal unchanged; when the falling edge of the external field synchronous signal is not detected, a low-level synchronous separation signal is generated.
Optionally, a field synchronization signal is included in a 3D video signal of the 3D video stream, and the step of performing left-eye and right-eye separation on the 3D video stream according to the synchronization separation signal and the 3D video stream includes: when the synchronous separation signal is at a high level, carrying out initialization zero clearing, and starting to count the field synchronous signals of the 3D video stream; and separating left and right eyes of the 3D video stream according to the counting result.
Optionally, the manner of performing left-right eye separation on the 3D video stream according to the counting result includes: judging the 3D video signal corresponding to the odd counting result as a left-eye signal, and judging the 3D video signal corresponding to the odd counting result as a right-eye signal; or, the 3D video signal corresponding to the odd counting result is determined as the right-eye signal, and the 3D video signal corresponding to the odd counting result is determined as the left-eye signal.
Optionally, before the step of sending the left-eye signal and the right-eye signal to the 3D display device by each 3D video processing apparatus according to the external field synchronization signal, the method further includes: and each 3D video processing device carries out time domain conversion on the left eye signal and the right eye signal.
Optionally, the method further comprises: and each 3D video processing device exchanges the output positions of the left eye signal and the right eye signal according to the received same adjusting signal.
In a second aspect, an embodiment of the present invention further provides a video synchronization processing method applied to a video playing system, where the system includes a 3D signal source output device, a video synchronization processing device, and a 3D display device, which are connected in a communication manner, where the video synchronization processing device includes a plurality of 3D video processing apparatuses, and the method includes: the 3D signal source output equipment sends a plurality of paths of 3D video streams to the video synchronous processing equipment; each 3D video processing device performs left-eye and right-eye separation on the received 3D video stream according to the same received external field synchronizing signal and control signal to obtain a left-eye signal and a right-eye signal, and sends the left-eye signal and the right-eye signal to 3D display equipment according to the external field synchronizing signal; and the 3D display equipment displays the received left eye signal and the received right eye signal.
In a third aspect, an embodiment of the present invention further provides a video synchronization processing apparatus, where the video synchronization processing apparatus includes a plurality of 3D video processing devices, and each 3D video processing device includes: the separation unit is used for performing left-eye and right-eye separation on the received 3D video stream according to the same received external field synchronous signal and control signal to obtain a left-eye signal and a right-eye signal; and the first adjusting unit is used for sending the left eye signal and the right eye signal to the 3D display equipment according to the external field synchronous signal.
Optionally, the apparatus further comprises: and the second adjusting unit is used for exchanging the output positions of the left eye signal and the right eye signal according to the same received adjusting signal.
Compared with the prior art, the invention has the following beneficial effects:
the embodiment of the invention provides a video synchronous processing method and video synchronous processing equipment. The method is applied to a video synchronization processing apparatus including a plurality of 3D video processing devices. And each 3D video processing device performs left-eye and right-eye separation on the received 3D video stream according to the received same external field synchronous signal and control signal to obtain a left-eye signal and a right-eye signal. And each 3D video processing device sends the left eye signal and the right eye signal to 3D display equipment according to the outfield synchronizing signal. After the video synchronous processing equipment receives the multi-channel 3D video streams, each 3D video processing device simultaneously separates the 3D video streams to obtain a left eye signal and a right eye signal based on the outfield synchronizing signal and the control signal, and simultaneously outputs the left eye signal and the right eye signal based on the outfield synchronizing signal. Therefore, the left and right eye signals of the multi-path 3D video stream can be effectively and synchronously separated through the processing.
Each path of 3D video stream comprises an independent left eye signal and an independent right eye signal, and in the output process of each path of 3D video stream, the output of the multi-path 3D video stream is asynchronous due to the fact that the acquisition equipment is powered on and off, reset, the wiring of a 3D signal source is disconnected and the like. When the above-mentioned abnormality occurs, there is a possibility that the left and right eye signals of each 3D video stream are inverted, and the larger the number of 3D video streams is, the more serious the case is. The problems can be effectively solved by synchronously separating the left eye and the right eye and synchronously outputting left eye and right eye signals.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a block diagram of a video playing system according to an embodiment of the present invention.
Fig. 2 is a block diagram of a video synchronization processing apparatus according to an embodiment of the present invention.
Fig. 3 is a flowchart illustrating a video synchronization processing method according to an embodiment of the present invention.
Fig. 4 is a flowchart illustrating sub-steps included in step S110 in fig. 3.
Fig. 5 is a flowchart illustrating sub-steps included in sub-step S112 in fig. 4.
Fig. 6 is a second flowchart illustrating a video synchronization processing method according to an embodiment of the invention.
Fig. 7 is a third schematic flowchart of a video synchronization processing method according to an embodiment of the present invention.
Fig. 8 is a fourth flowchart illustrating a video synchronization processing method according to an embodiment of the present invention.
Fig. 9 is a block diagram of a 3D video processing apparatus according to an embodiment of the present invention.
Fig. 10 is a second block diagram of a video synchronization processing apparatus according to an embodiment of the present invention.
Icon: 10-a video synchronization processing device; 20-3D signal source output devices; 30-a 3D display device; 100-3D video processing means; 110-a separation unit; 120-a first adjustment unit; 130-second adjustment unit.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
Referring to fig. 1, fig. 1 is a block diagram illustrating a video playing system according to an embodiment of the present invention. The video playing system comprises a 3D signal source output device 20, a video synchronous processing device 10 and a 3D display device 30 which are in communication connection. The 3D signal source output device 20 is configured to divide a 3D video stream into multiple 3D video streams, and send the multiple 3D video streams to the video synchronization processing device 10. The video synchronization processing device 10 is configured to perform synchronization separation on each path of 3D video stream in the multiple paths of 3D video streams to obtain a left eye signal and a right eye signal of each path of 3D video stream, and simultaneously send the left eye signal and the right eye signal obtained through separation to the 3D display device 30. The 3D display device 30 is configured to display the received left-eye signal and right-eye signal. Since the video synchronization processing device 10 performs synchronization processing and synchronization output on each 3D video stream, it can be ensured that the display effect of the 3D display device 30 is normal.
Wherein multiple 3D video streams are output by the same 3D signal source output device 20. The 3D signal source output device 20 may be, but is not limited to, a device with a 3D graphics card, a camera, and the like.
The following examples are given.
For example, a device with a 3D graphics card divides one path of 3D signal and outputs 4 paths of 1920 × 1080 3D signals, the 4 paths of 3D signals can be spliced into 1 path of 3840 × 2160 3D signal, and at this time, if synchronization processing is not performed, when the 1 path of signal source is abnormal (for example, a connection line is disconnected or contact is not good), the left and right eye sequence of the 3D signal is changed into the right and left eye sequence, and the other paths of 3D signals are normal, so that the 3D display of the 3D display device 30 is abnormal, and when the number of paths of the 3D signal is more, the 3D display is more abnormal. In this embodiment, the video synchronization processing device 10 may perform synchronization processing on each path of 3D signals 1920 × 1080, so that the processing is synchronous, and the left and right eye sequences corresponding to each path of 3D signals are the same, thereby ensuring that the 3D display is normal. When the multi-channel 3D signals cannot be synchronously input into the video synchronization processing device 10 due to factors such as power-on and power-off of the acquisition device, reset, disconnection of a 3D signal source and the like, the video synchronization processing device 10 performs synchronization processing on the currently received multi-channel 3D signals, and can ensure a current normal 3D display effect.
Referring to fig. 2, fig. 2 is a block diagram of a video synchronization processing apparatus 10 according to an embodiment of the present invention. The video synchronization processing apparatus 10 includes a plurality of 3D video processing devices 100. Each 3D video processing apparatus 100 receives the external field synchronization signal sent by another control system and the control signal sent by a certain control device, and receives the multiple 3D video streams sent by the 3D signal source output device 20. Of these, 2 3D video processing devices 100 are shown in fig. 2 as an example only.
Referring to fig. 3, fig. 3 is a flowchart illustrating a video synchronization processing method according to an embodiment of the invention. The method is applied to a video synchronization processing apparatus 10, the video synchronization processing apparatus 10 including a plurality of 3D video processing devices 100. The following describes a specific flow of the video synchronization processing method in detail.
In step S110, each 3D video processing apparatus 100 performs left-right eye separation on the received 3D video stream according to the received identical external field synchronization signal and control signal to obtain a left-eye signal and a right-eye signal.
Referring to fig. 4, fig. 4 is a flowchart illustrating sub-steps included in step S110 in fig. 3. Step S110 may include sub-step S111 and sub-step S112.
And a substep S111 of generating a sync separation signal according to the received external field sync signal and the control signal.
In this embodiment, the step of generating a sync separation signal according to the received external field sync signal and the control signal comprises: detecting the rising edge and the falling edge of the external field synchronous signal; when the rising edge of the external field synchronous signal is detected, generating a low-level synchronous separation signal; when the falling edge of the external field synchronous signal is detected, detecting the rising edge and the falling edge of the control signal; generating a high-level synchronous separation signal when the rising edge of the control signal is detected; generating a low-level synchronous separation signal when a falling edge of the control signal is detected; when the rising edge of the external field synchronous signal, the rising edge of the control signal and the falling edge of the control signal are not detected, keeping the synchronous separation signal unchanged; when the falling edge of the external field synchronous signal is not detected, a low-level synchronous separation signal is generated.
Optionally, after receiving the external field sync signal and the control signal, the 3D video processing apparatus 100 detects a rising edge and a falling edge of the external field sync signal and the control signal to obtain a detection result, and generates a sync separation signal of a corresponding level according to the detection result.
In the embodiment of the present invention, the 3D video processing apparatus 100 first detects a rising edge and a falling edge of the external field sync signal. And generating a low-level synchronous separation signal by zero clearing when the rising edge of the external field synchronous signal is detected. And when the falling edge of the external field synchronous signal is detected, acquiring the control signal to detect the rising edge and the falling edge of the control signal. And if the rising edge of the control signal is detected when the falling edge of the external field synchronous signal is detected, generating a high-level synchronous separation signal. And if the falling edge of the control signal is detected when the falling edge of the external field synchronous signal is detected, generating a low-level synchronous separation signal by zero clearing. And if other states are detected, keeping the synchronous separation signal unchanged. For example, the sync separation signal of the high level is generated last time, and if another state is detected this time, the sync separation signal of this time is still at the high level. Wherein the other states include no detection of a rising edge of the external field sync signal, no detection of a rising edge of the control signal, and no detection of a falling edge of the control signal.
If no falling edge of the external field sync signal is detected, for example, if the level of the external field sync signal is high or low, a sync separation signal of low level is generated.
And a substep S112 of separating left and right eyes of the 3D video stream according to the synchronization separation signal and the 3D video stream.
In this embodiment, the 3D video signal of the 3D video stream is in a Frame Sequential Frame format, where the Frame Sequential Frame format is used to transmit left-eye and right-eye signals through odd-even frames, for example, the odd-even frames correspond to left-eye signals and the even-even frames correspond to right-eye signals. The essence of frame continuation is that continuously sending pictures, such as 60HZ film, sends each frame of image at 120HZ, and each frame is alternately displayed for the left eye and the right eye in turn.
The one path of 3D video stream comprises a plurality of 3D video signals which are sequentially sent according to a time sequence. The 3D video signal may include data, a line sync signal HS, a field sync signal VS (i.e., a VS field signal), a data valid signal DE, and the like. And judging whether the 3D video signal corresponding to each field synchronizing signal belongs to a left-eye signal or a right-eye signal according to the level condition of the synchronous separation signal and the field synchronizing signal, thereby realizing the left-eye and right-eye separation of the 3D video stream.
Referring to fig. 5, fig. 5 is a flowchart illustrating sub-steps included in sub-step S112 in fig. 3. The sub-step S112 may include a sub-step S1121 and a sub-step S1122.
And a substep S1121, performing initialization zero clearing when the sync separation signal is at a high level, and starting to count the field sync signal of the 3D video stream.
And a substep S1122 of separating left and right eyes of the 3D video stream according to the counting result.
In this embodiment, when the sync separator signal is at a high level, the counting result for the field sync signal is initialized and cleared, and the field sync signal of the received 3D video stream starts to be counted, so as to obtain a counting result corresponding to each field sync signal, and further obtain a left-eye signal and a right-eye signal according to the counting result and the 3D video stream.
Alternatively, the 3D video signal whose count result is an odd number may be used as the left-eye signal, and the 3D video signal whose count result is an even number may be used as the right-eye signal. The 3D video signal whose count result is an odd number may be used as the right-eye signal, and the 3D video signal whose count result is an even number may be used as the left-eye signal. Thus, left-eye and right-eye separation is performed synchronously for each 3D video stream, and a left-eye signal and a right-eye signal corresponding to each 3D video stream are obtained.
In step S140, each 3D video processing device 100 sends the left eye signal and the right eye signal to the 3D display device 30 according to the external field synchronization signal.
In this embodiment, after each 3D video processing device 100 obtains a left-eye signal and a right-eye signal through synchronous processing, the reading sequence of each 3D video processing device 100 changes along with the external field synchronous signal, so that each 3D video processing device 100 simultaneously sends the left-eye signal and the right-eye signal obtained through separation to the 3D display device 30. Since each 3D video stream is synchronously processed and simultaneously output, the 3D display of the 3D display device 30 is normal.
Referring to fig. 6, fig. 6 is a second flowchart illustrating a video synchronization processing method according to an embodiment of the invention. Prior to step S140, the method as taught may further comprise step S120.
In step S120, each 3D video processing device 100 performs time domain conversion on the left-eye signal and the right-eye signal.
In this embodiment, the 3D video signal is in the pixel clock domain, and this clock varies according to the resolution. Since a receiving device (e.g., the 3D display device 30) that receives the left-eye signal and the right-eye signal obtained through the synchronization process may need other clock domains, the receiving device may directly receive the left-eye signal whose clock domain meets the requirement by performing time domain conversion.
Referring to fig. 7, fig. 7 is a third schematic flowchart illustrating a video synchronization processing method according to an embodiment of the invention. Before step S140, the method may further include step S130.
In step S130, each 3D video processing device 100 exchanges output positions of the left-eye signal and the right-eye signal according to the same received adjustment signal.
In this embodiment, the left-eye signal and the right-eye signal obtained through the synchronization process may be opposite to the actual situation, for example, the left-eye signal determined by the 3D video processing apparatus 100 is actually the right-eye signal, and the determined right-eye signal is actually the left-eye signal. In this case, each 3D video processing apparatus 100 receives an adjustment signal sent by another device, and exchanges output positions of the left-eye signal and the right-eye signal according to the adjustment signal to perform correction.
Since the processing performed on each 3D video stream is synchronous and the same, and the processing is performed based on the same external field synchronization signal and control signal, only two situations, that is, all the left and right eye signals corresponding to each 3D video stream are consistent with the actual situation, or all the left and right eye signals are opposite to the actual situation. The left and right eye signals of the multi-path 3D video stream can be adjusted based on the same adjustment signal.
For example, the output port 1 of each 3D video processing device 100 is configured in advance to output a left-eye signal, and the output port 2 outputs a right-eye signal. If all the left-eye and right-eye signals are opposite, that is, the currently determined left-eye signal (actually, right-eye signal) is output from the output port 1 and the currently determined right-eye signal (actually, left-eye signal) is output from the output port 2, the currently determined left-eye signal (actually, right-eye signal) may be output from the output port 2 and the currently determined right-eye signal (actually, left-eye signal) may be output from the output port 1 upon receiving the adjustment signal.
Referring to fig. 8, fig. 8 is a fourth flowchart illustrating a video synchronization processing method according to an embodiment of the present invention. The method is applied to a video playing system. The video playing system comprises a 3D signal source output device 20, a video synchronous processing device 10 and a 3D display device 30 which are in communication connection.
In step S210, the 3D signal source output device 20 sends multiple 3D video streams to the video synchronization processing device 10.
In step S220, each 3D video processing apparatus 100 performs left-right eye separation on the received 3D video stream according to the same received external field synchronization signal and control signal to obtain a left-eye signal and a right-eye signal, and sends the left-eye signal and the right-eye signal to the 3D display device 30 according to the external field synchronization signal.
In step S230, the 3D display device 30 displays the received left eye signal and right eye signal.
In the present embodiment, the detailed description about steps S210 to S230 may refer to the description of fig. 1 to 7 above.
Referring to fig. 9 and fig. 10, fig. 9 is a block diagram of a 3D video processing apparatus 100 according to an embodiment of the present invention, and fig. 10 is a second block diagram of a video synchronization processing device 10 according to an embodiment of the present invention. The video synchronization processing apparatus 10 includes a plurality of 3D video processing devices 100, and each 3D video processing device 100 includes a separation unit 110 and a first adjustment unit 120.
A separating unit 110, configured to obtain a left-eye signal and a right-eye signal by performing left-eye and right-eye separation on the received 3D video stream according to the received same external field synchronization signal and control signal.
In the present embodiment, the separation unit 110 is configured to perform step S110 in fig. 3, and the detailed description about the separation unit 110 may refer to the description of step S110 in fig. 3.
The first adjusting unit 120 is configured to send the left eye signal and the right eye signal to the 3D display device 30 according to the external field synchronization signal.
In this embodiment, the first adjusting unit 120 is configured to execute step S140 in fig. 3, and the detailed description about the first adjusting unit 120 may refer to the description of step S140 in fig. 3.
Optionally, the first adjusting unit 120 is further configured to perform time domain conversion on both the left-eye signal and the right-eye signal.
In this embodiment, the first adjusting unit 120 is further configured to perform step S120 in fig. 6, and the detailed description about the first adjusting unit 120 may refer to the description about step S120 in fig. 6.
Further, the 3D video processing apparatus 100 may further include a second adjusting unit 130.
And a second adjusting unit 130, configured to exchange output positions of the left-eye signal and the right-eye signal according to the same received adjusting signal.
In this embodiment, the second adjusting unit 130 is configured to execute step S130 in fig. 7, and the detailed description about the second adjusting unit 130 may refer to the description about step S130 in fig. 7.
In summary, the embodiments of the present invention provide a method and an apparatus for video synchronization processing. The method is applied to a video synchronization processing apparatus including a plurality of 3D video processing devices. And each 3D video processing device performs left-eye and right-eye separation on the received 3D video stream according to the received same external field synchronous signal and control signal to obtain a left-eye signal and a right-eye signal. And each 3D video processing device sends the left eye signal and the right eye signal to 3D display equipment according to the outfield synchronizing signal. After the video synchronous processing equipment receives the multi-channel 3D video streams, each 3D video processing device simultaneously separates the 3D video streams to obtain a left eye signal and a right eye signal based on the outfield synchronizing signal and the control signal, and simultaneously outputs the left eye signal and the right eye signal based on the outfield synchronizing signal. Therefore, the left and right eye signals of the multi-path 3D video stream can be effectively and synchronously separated through the processing.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A video synchronization processing method applied to a video synchronization processing apparatus including a plurality of 3D video processing devices, the method comprising:
each 3D video processing device performs left-eye and right-eye separation on the received 3D video stream according to the received same external field synchronous signal and control signal to obtain a left-eye signal and a right-eye signal;
each 3D video processing device sends the left eye signal and the right eye signal to 3D display equipment according to the outfield synchronizing signal;
the step of performing left-eye and right-eye separation on the received 3D video stream by each 3D video processing device according to the received identical external field synchronization signal and control signal to obtain a left-eye signal and a right-eye signal includes:
generating a synchronous separation signal according to the received external field synchronous signal and the control signal;
performing left-right eye separation on the 3D video stream according to the synchronous separation signal and the 3D video stream;
the step of generating a sync separation signal according to the received external field sync signal and the control signal comprises: detecting the rising edge and the falling edge of the external field synchronous signal; when the rising edge of the external field synchronous signal is detected, generating a low-level synchronous separation signal; when the falling edge of the external field synchronous signal is detected, detecting the rising edge and the falling edge of the control signal; generating a high-level synchronous separation signal when the rising edge of the control signal is detected; generating a low-level synchronous separation signal when a falling edge of the control signal is detected; when the rising edge of the external field synchronous signal, the rising edge of the control signal and the falling edge of the control signal are not detected, keeping the synchronous separation signal unchanged; when the falling edge of the external field synchronous signal is not detected, generating a low-level synchronous separation signal;
the 3D video signal of the 3D video stream includes a field sync signal, and the step of separating left and right eyes of the 3D video stream according to the sync separation signal and the 3D video stream includes: when the synchronous separation signal is at a high level, carrying out initialization zero clearing, and starting to count the field synchronous signals of the 3D video stream; and separating left and right eyes of the 3D video stream according to the counting result.
2. The method according to claim 1, wherein the separating left and right eyes of the 3D video stream according to the counting result comprises:
judging the 3D video signal corresponding to the odd counting result as a left-eye signal, and judging the 3D video signal corresponding to the odd counting result as a right-eye signal; or
And determining the 3D video signal corresponding to the odd counting result as a right eye signal, and determining the 3D video signal corresponding to the odd counting result as a left eye signal.
3. The method according to claim 1, wherein before the step of each 3D video processing device sending the left-eye signal and the right-eye signal to the 3D display device according to the external field synchronization signal, the method further comprises:
and each 3D video processing device carries out time domain conversion on the left eye signal and the right eye signal.
4. The method of claim 1, further comprising:
and each 3D video processing device exchanges the output positions of the left eye signal and the right eye signal according to the received same adjusting signal.
5. A video synchronization processing method is applied to a video playing system, the system comprises a 3D signal source output device, a video synchronization processing device and a 3D display device which are in communication connection, wherein the video synchronization processing device comprises a plurality of 3D video processing devices, and the method comprises the following steps:
the 3D signal source output equipment sends a plurality of paths of 3D video streams to the video synchronous processing equipment;
each 3D video processing device performs left-eye and right-eye separation on the received 3D video stream according to the same received external field synchronizing signal and control signal to obtain a left-eye signal and a right-eye signal, and sends the left-eye signal and the right-eye signal to 3D display equipment according to the external field synchronizing signal;
the 3D display equipment displays the received left eye signal and the received right eye signal;
the step of performing left-eye and right-eye separation on the received 3D video stream by each 3D video processing device according to the received identical external field synchronization signal and control signal to obtain a left-eye signal and a right-eye signal includes:
generating a synchronous separation signal according to the received external field synchronous signal and the control signal;
performing left-right eye separation on the 3D video stream according to the synchronous separation signal and the 3D video stream;
the step of generating a sync separation signal according to the received external field sync signal and the control signal comprises: detecting the rising edge and the falling edge of the external field synchronous signal; when the rising edge of the external field synchronous signal is detected, generating a low-level synchronous separation signal; when the falling edge of the external field synchronous signal is detected, detecting the rising edge and the falling edge of the control signal; generating a high-level synchronous separation signal when the rising edge of the control signal is detected; generating a low-level synchronous separation signal when a falling edge of the control signal is detected; when the rising edge of the external field synchronous signal, the rising edge of the control signal and the falling edge of the control signal are not detected, keeping the synchronous separation signal unchanged; when the falling edge of the external field synchronous signal is not detected, generating a low-level synchronous separation signal;
the 3D video signal of the 3D video stream includes a field sync signal, and the step of separating left and right eyes of the 3D video stream according to the sync separation signal and the 3D video stream includes: when the synchronous separation signal is at a high level, carrying out initialization zero clearing, and starting to count the field synchronous signals of the 3D video stream; and separating left and right eyes of the 3D video stream according to the counting result.
6. A video synchronization processing apparatus characterized in that the video synchronization processing apparatus includes a plurality of 3D video processing devices, each 3D video processing device comprising:
the separation unit is used for performing left-eye and right-eye separation on the received 3D video stream according to the same received external field synchronous signal and control signal to obtain a left-eye signal and a right-eye signal;
the first adjusting unit is used for sending the left eye signal and the right eye signal to the 3D display equipment according to the external field synchronous signal;
the method for separating left and right eyes of a received 3D video stream by the separation unit according to the received same external field synchronization signal and control signal to obtain a left eye signal and a right eye signal includes:
generating a synchronous separation signal according to the received external field synchronous signal and the control signal;
performing left-right eye separation on the 3D video stream according to the synchronous separation signal and the 3D video stream;
the manner of generating the synchronization separation signal by the separation unit according to the received external field synchronization signal and the control signal comprises: detecting the rising edge and the falling edge of the external field synchronous signal; when the rising edge of the external field synchronous signal is detected, generating a low-level synchronous separation signal; when the falling edge of the external field synchronous signal is detected, detecting the rising edge and the falling edge of the control signal; generating a high-level synchronous separation signal when the rising edge of the control signal is detected; generating a low-level synchronous separation signal when a falling edge of the control signal is detected; when the rising edge of the external field synchronous signal, the rising edge of the control signal and the falling edge of the control signal are not detected, keeping the synchronous separation signal unchanged; when the falling edge of the external field synchronous signal is not detected, generating a low-level synchronous separation signal;
the 3D video signal of the 3D video stream includes a field sync signal, and the manner in which the separation unit separates left and right eyes of the 3D video stream according to the sync separation signal and the 3D video stream includes: when the synchronous separation signal is at a high level, carrying out initialization zero clearing, and starting to count the field synchronous signals of the 3D video stream; and separating left and right eyes of the 3D video stream according to the counting result.
7. The apparatus of claim 6, further comprising:
and the second adjusting unit is used for exchanging the output positions of the left eye signal and the right eye signal according to the same received adjusting signal.
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