WO2018192183A1 - Method and apparatus for processing video file during wireless screen delivery - Google Patents

Abstract

Disclosed are a method and apparatus for processing a video file during wireless screen delivery. The method is applied to a source end of wireless screen delivery and comprises: detecting an instruction, for opening a video file, of a user; determining, according to whether the video file complies with pre-set information, whether a receiving end of wireless screen delivery supports the streaming playing of the video file, wherein the pre-set information is a format of a video file, the playing of which is supported by the receiving end; and if so, streaming the video file to the receiving end so as to carry out streaming playing, and meanwhile, stopping wireless screen delivery between a source end and the receiving end. According to the method for processing a video file during wireless screen delivery in the embodiments of the present invention, the occupancy of system resources can be reduced.

Description

Method and device for processing video file in wireless screen Technical field

The present invention relates to the field of computer information processing technologies, and in particular, to a method and an apparatus for processing video files in a wireless screen.

Background technique

The wireless transmission technology mainly realizes that the content and sound displayed on the screen of the source device are synchronized to the receiving device such as the projector, the television and the conference tablet, and the wireless transmission technology can process the source device (such as a computer). It is widely used in combination with the features of the receiving device (such as a TV or a conference tablet).

The existing wireless screen transmission technology is mainly implemented by using the screen transmission software, and the corresponding screen transmission software is installed on the source device and the receiver device, and the source device and the receiver device are ensured to be in the same wireless network. Wireless transmission of multimedia information (including pictures, audio, video, etc.).

However, in the existing software transmission scheme, taking the source device as the computer as an example, the computer desktop screen is captured by the operating system interface and transmitted to the receiving device for display. When the user plays the video, no special processing is performed. The frame is still captured frame by frame, re-encoded and sent, and re-encoding will result in loss of picture quality and frame rate, and re-encoding brings additional computational overhead, resulting in increased computer power consumption and additional system resources.

Summary of the invention

The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the embodiment of the present invention provides a method for processing a video file in a wireless screen, which does not cause loss of image quality and frame rate, and does not generate additional computational overhead.

A method for processing a video file in a wireless screen according to an embodiment of the present invention includes:

Detecting a user's instruction to open a video file;

Determining, according to whether the video file meets the preset information, whether the receiving end of the wireless screen supports the streaming play of the video file, where the preset information is a frame of the video file supported by the receiving end. formula;

If yes, the video file is streamed to the receiving end for streaming playback, and the wireless transmission between the source end of the wireless screen and the receiving end is stopped.

The method for processing a video file in a wireless screen according to an embodiment of the present invention is applied to a source end in a wireless screen transmission process, and after receiving an instruction to open a video file by a user, the video file is not directly opened by using the player. Firstly, according to the format of the video file supported by the receiving end, it is determined whether the receiving end supports the streaming of the current video file, and if so, the video file is streamed to the receiving end for streaming, and the wireless transmission is stopped at the same time. Screen, therefore, the playback process of the video file does not need to be re-encoded, but the streaming operation is directly performed at the receiving end, which does not cause loss of image quality and frame rate, and does not cause additional computational overhead, in addition, due to playback in video During the process, the wireless screen is stopped, thus reducing the occupation of system resources.

In addition, the method for processing a video file in a wireless screen according to the above embodiment of the present invention may further have the following additional technical features:

Further, in an embodiment of the present invention, before the step of detecting an instruction of a user to open a video file, the processing method further includes:

The video file is associated to the probe program via an operating system interface to enable the video file to be opened by the probe program, the probe program for recording the user's behavior of opening the video file.

Further, in an embodiment of the present invention, the step of streaming the video file to the receiving end for streaming playback while stopping wireless transmission between the source end and the receiving end Previously, the processing method further includes:

Receiving a selection play command sent by the user, and determining that the selected play instruction is a first instruction or a second instruction, where the first instruction is to stream the video file to the receiving end for streaming play, where the The second instruction is to play the video file by using a default player;

If it is determined that the selected play command is the first instruction, performing streaming of the video file to the receiving end for streaming play, and stopping wireless transmission between the source end and the receiving end The steps of the screen.

Further, in an embodiment of the present invention, the step of streaming the video file to the receiving end for streaming playback while stopping wireless transmission between the source end and the receiving end It The processing method further includes:

After the streaming end of the video file is completed, the wireless terminal between the source end and the receiving end is restarted.

Further, in an embodiment of the present invention, after the step of determining whether the receiving end of the wireless screen supports the streaming of the video file according to whether the video file conforms to the preset information, the processing method Also includes:

If the receiving end does not support the streaming of the video file, the default player is called to play the video file, and at the same time, the playing screen is acquired, and the playing screen is re-encoded and sent to the receiving end.

Further, in an embodiment of the present invention, the step of streaming the video file to the receiving end for streaming play includes:

Establish an HTTP or RTSP server and generate a URL;

The video file is sent to the receiving end based on a TCP/IP protocol, so that the receiving end acquires and plays the video file using an HTTP or RTSP protocol.

Another embodiment of the present invention provides a device for processing a video file in a wireless screen without causing loss of image quality and frame rate without incurring additional computational overhead.

A device for processing a video file in a wireless screen according to an embodiment of the present invention is applied to a source end of a wireless screen, and includes:

a detecting module, configured to detect an instruction that the user opens the video file;

a determining module, configured to determine, according to whether the video file meets the preset information, whether the receiving end of the wireless screen supports streaming play of the video file, where the preset information is a video file supported by the receiving end format;

a streaming module, configured to: when the determining module determines that the receiving end supports the streaming play of the video file, stream the video file to the receiving end for streaming play, and stop the source Wireless transmission between the terminal and the receiving end.

In addition, the processing device for video files in the wireless screen according to the above embodiments of the present invention may further have the following additional technical features:

Further, in an embodiment of the present invention, the processing device further includes:

And an association module, configured to associate the video file to the probe program through an operating system interface, so that the video file can be opened by the probe program, and the probe program is used to record a behavior of the user opening the video file.

Further, in an embodiment of the present invention, the processing device further includes:

a receiving determining module, configured to: when the determining module determines that the receiving end supports the streaming play of the video file, receive a selective play instruction sent by the user, and determine that the selected play instruction is the first instruction or the second Instructing, the first instruction is to stream the video file to the receiving end for streaming play, and the second instruction is to play the video file by using a default player;

The streaming module is specifically configured to: when the receiving determining module determines that the selected play instruction is the first instruction, stream the video file to the receiving end for streaming play, and stop wireless transmission Wireless transmission between the source end of the screen and the receiving end.

Further, in an embodiment of the present invention, the processing device further includes:

The restarting module is configured to restart the wireless transmission between the source end and the receiving end after the receiving end plays the streaming of the video file.

Further, in an embodiment of the present invention, the processing device further includes:

The calling module is configured to: when the determining module determines that the receiving end does not support the streaming play of the video file, call the default player to play the video file, and at the same time, obtain a playing screen, and play the playing The picture is re-encoded and sent to the receiving end.

Further, in an embodiment of the present invention, the streaming module is specifically configured to:

Establish an HTTP or RTSP server and generate a URL;

The video file is sent to the receiving end based on a TCP/IP protocol, so that the receiving end acquires and plays the video file using an HTTP or RTSP protocol.

The additional aspects and advantages of the invention will be set forth in part in the description which follows.

DRAWINGS

The above and/or additional aspects and advantages of the embodiments of the present invention will become apparent and readily understood from

1 is a flowchart of a method of processing a video file in a wireless screen according to a first embodiment of the present invention;

2 is a flowchart of a method for processing a video file in a wireless screen according to a second embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a device for processing a video file in a wireless screen according to another embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

Referring to FIG. 1 , a method for processing a video file in a wireless screen according to a first embodiment of the present invention is applied to a source end in a wireless screen transmission process. In this embodiment, the source end is illustrated by using a computer as an example, and The receiving end of the computer is described by taking a conference tablet as an example. The computer and the conference tablet are respectively equipped with corresponding screen transmission software, and the computer and the conference tablet are in the same wireless network, and the two can be used in the prior art. Regular wireless screen. The method for processing a video file in the wireless screen proposed in this embodiment includes at least the following steps:

S101. Detect an instruction that a user opens a video file.

The user can find the pre-played video file through the resource manager on the computer. It can be understood that the user double-clicking the video file can be regarded as detecting that the user opens the video file.

S102, determining, according to whether the video file meets the preset information, whether the receiving end of the wireless screen supports the streaming play of the video file, where the preset information is a format of the video file supported by the receiving end;

The preset information may be pre-stored in the computer, that is, what types of video files have been stored in the computer can be played by the conference tablet, and when the user receives the instruction to open the video file, the preset information is not immediately played on the computer. The video file first determines whether the receiving end supports the streaming of the video file according to the preset information. The specific criterion may be to determine whether the encapsulation format of the video file and the audio and video encoding format are supported by the conference tablet. Streaming playback means playing with a similar side buffer In the manner of playing the video file, since the technical content is prior art, it will not be described here.

S103. If yes, stream the video file to the receiving end for streaming playback, and stop wireless transmission between the source end of the wireless screen and the receiving end.

If the conference tablet supports the streaming of the video file, the video file is streamed to the conference tablet for streaming, and the wireless transmission between the computer and the conference tablet is stopped, thereby ensuring the system during streaming playback. Occupation will not be too high. In the specific implementation, based on the TCP/IP protocol, an HTTP or RTSP server can be established at the source end, and a URL is generated, and then the video file is sent to the conference tablet through the existing communication protocol, and finally the conference tablet can be HTTP or RTSP. The source acquires the video file and plays it.

The method for processing a video file in a wireless screen according to an embodiment of the present invention is applied to a source end in a wireless screen transmission process, and after receiving an instruction to open a video file by a user, the video file is not directly opened by using the player. Firstly, according to the format of the video file supported by the receiving end, it is determined whether the receiving end supports the streaming of the current video file, and if so, the video file is streamed to the receiving end for streaming, and the wireless transmission is stopped at the same time. Screen, therefore, the playback process of the video file does not need to be re-encoded, but the streaming operation is directly performed at the receiving end, which does not cause loss of image quality and frame rate, and does not cause additional computational overhead, in addition, due to playback in video During the process, the wireless screen is stopped, thus reducing the occupation of system resources.

In addition, according to an example of the present invention, after the step S102, the processing method further includes:

If the video file does not meet the preset information, it is determined that the receiving end of the wireless screen does not support streaming of the video file, and at this time, the default player is called to play the video file. At the same time, the playback screen is acquired, and the playback screen is re-encoded and sent to the receiving end.

If the conference tablet does not support the streaming play of the video file, the default player in the computer is called to play the video file. In specific implementation, the wireless screen transmission software may be passed in the computer after running. The method of reading the registry records the playing program of the current system default video file, and then directly calls the default playing program to play the video file. In addition, while playing, the playing screen is acquired, and the playing screen is re-encoded and sent. To the conference tablet, the wireless transmission process is consistent with the method of capturing the desktop frame by frame in the prior art and re-encoding and transmitting.

In addition, according to an example of the present invention, after the step S103, the processing method further includes:

After the streaming end of the video file is completed, the wireless terminal between the source end and the receiving end is restarted.

After the conference tablet finishes streaming the video file, the wireless screen between the computer and the conference tablet is restarted, that is, the wireless transmission is performed on the computer and the conference tablet according to the normal wireless transmission mode.

Referring to FIG. 2, a method for processing a video file in a wireless screen according to a second embodiment of the present invention is applied to a source end in a wireless screen transmission process. In this embodiment, the source end is also illustrated by using a computer as an example. The receiving end corresponding to the computer is described by taking a conference tablet as an example. The computer and the conference tablet are respectively equipped with corresponding screen transmission software, and the computer and the conference tablet are in the same wireless network, and the two can carry out the prior art. Conventional wireless screens. The method for processing a video file in the wireless screen proposed in this embodiment includes at least the following steps:

S201. Associate the video file to a detection program by using an operating system interface, so that the video file can be opened by the detection program, where the detection program is used to record a behavior of a user opening a video file.

S202. Detect an instruction that a user opens a video file.

S203. Open the video file by using the probe program.

The probe program can be used as a proxy or a relay. In the prior art, the user double-clicks a video file in the operating system of the computer, and the video file is opened by the player. In this embodiment, the file user double-clicks on a video file. Since the video file has been associated with the probe program, the probe program is used to open the video file, and the probe program can know the behavior of the user opening the video file, and then the subsequent playback is performed using the original player. Video file, or stream video files to the conference tablet.

S204, determining, according to the preset information, whether the receiving end supports the streaming play of the video file, where the preset information is a format of the video file supported by the receiving end;

S205, if yes, receiving a selective play instruction sent by the user, and determining that the selected play instruction is a first instruction or a second instruction, where the first instruction is to stream the video file to the receiving end for streaming Playing, the second instruction is to play the video file by using a default player;

S206. If it is determined that the selected play command is the first instruction, the video file string is Flowing to the receiving end for streaming play, and stopping wireless transmission between the source end and the receiving end;

In a specific implementation, if the conference tablet supports the streaming of the video file, the user is prompted to make a selection: a. streaming the video file to the receiving end for streaming (corresponding to the first The instruction is: b. playing the video file by using a default player (corresponding to the second instruction), and then performing a corresponding play mode according to the selection result of the user. If the user selects a, the video file is streamed to the receiving end for streaming playback, and the wireless screen is stopped. If the user selects b, the video file is played by the default player, and at the same time, the play screen is obtained, and the play screen is re-encoded and sent to the conference tablet. By providing users with two options, the utility of the processing method can be enriched to meet different user needs.

In addition, when the video file is streamed in the conference tablet, the progress jump and the exit play may also be performed in the computer, because the streaming mode is adopted when the conference tablet performs streaming playback, and is transmitted to The data of the conference tablet is controlled by the program, and the progress control process estimates the location of the file according to the time and the code rate, so it can be pushed from the latest key frame to realize the progress jump and exit playback in the computer. .

In this embodiment, after the step S204, if the receiving end does not support the streaming play of the video file, the default player is called to play the video file, and at the same time, the playing screen is acquired, and the The playback picture is re-encoded and sent to the receiving end.

S207. Restart the wireless transmission between the source end and the receiving end after the receiving end completes streaming of the video file.

After the conference tablet finishes streaming the video file, the wireless screen between the computer and the conference tablet is restarted, that is, the wireless transmission is performed on the computer and the conference tablet according to the normal wireless transmission mode.

A specific application environment is given below. During the conference, the user launches the screen transmission software on the computer for desktop transmission (wireless transmission), and all desktop contents on the computer are transmitted to the receiving end (such as a television) for display. In the demonstration, the user needs to play a certain video file. When the user opens the video file, the detection program detects that the file is supported by the television, prompting the user to select streaming play, and after the user selects, the desktop transmission is suspended, and the receiving end is full screen. Shows streaming video files.

Referring to FIG. 3, based on the same inventive concept, a device for processing a video file in a wireless screen according to another embodiment of the present invention is applied to a source end of a wireless screen, and includes:

The detecting module 10 is configured to detect an instruction that the user opens the video file;

The determining module 20 is configured to determine, according to whether the video file meets the preset information, whether the receiving end of the wireless screen supports the streaming play of the video file, where the preset information is a video file supported by the receiving end. Format

The stream module 30 is configured to: when the determining module determines that the receiving end supports the streaming play of the video file, stream the video file to the receiving end for streaming play, and stop the Wireless transmission between the source end and the receiving end.

In this embodiment, the processing device further includes:

The association module 40 is configured to associate the video file to the probe program through an operating system interface, so that the video file can be opened by the probe program, and the probe program is used to record a behavior of the user opening the video file.

In this embodiment, the processing device further includes:

The receiving determining module 50 is configured to: when the determining module 20 determines that the receiving end supports the streaming play of the video file, receive a selective play instruction sent by the user, and determine that the selected play instruction is the first instruction or a second instruction, the first instruction is to stream the video file to the receiving end for streaming, and the second instruction is to play the video file by using a default player;

The streaming module 30 is specifically configured to: when the receiving determining module 50 determines that the selected play instruction is the first instruction, stream the video file to the receiving end for streaming play, and stop at the same time Wireless transmission between the source end and the receiving end.

In this embodiment, the processing device further includes:

The restarting module 60 is configured to restart the wireless transmission between the source end and the receiving end after the receiving end plays the streaming of the video file.

In this embodiment, the processing device further includes:

The calling module 70 is configured to: when the determining module determines that the receiving end does not support the streaming play of the video file, call the default player to play the video file, and at the same time, obtain a playing screen, and the The playback picture is re-encoded and sent to the receiving end.

The technical features and technical effects of the device for processing a video file in the wireless screen according to the embodiment of the present invention are the same as those of the embodiment of the present invention, and are not described herein.

In addition, another embodiment of the present invention further provides a processing system for a video file in a wireless screen, comprising: a receiving device and a source device wirelessly communicating with the receiving device, wherein the source device is the above processing The device can be implemented in a computer manner, and the receiving device can be implemented in the form of a television or a member tablet.

The logic and/or steps represented in the flowchart or otherwise described herein, for example, may be considered as an ordered list of executable instructions for implementing logical functions, and may be embodied in any computer readable medium, Used in conjunction with, or in conjunction with, an instruction execution system, apparatus, or device (eg, a computer-based system, a system including a processor, or other system that can fetch instructions and execute instructions from an instruction execution system, apparatus, or device) Or use with equipment. For the purposes of this specification, a "computer-readable medium" can be any apparatus that can contain, store, communicate, propagate, or transport a program for use in an instruction execution system, apparatus, or device, or in conjunction with such an instruction execution system, apparatus, or device.

More specific examples (non-exhaustive list) of computer readable media include the following: electrical connections (electronic devices) having one or more wires, portable computer disk cartridges (magnetic devices), random access memory (RAM), Read only memory (ROM), erasable editable read only memory (EPROM or flash memory), fiber optic devices, and portable compact disk read only memory (CDROM). In addition, the computer readable medium may even be a paper or other suitable medium on which the program can be printed, as it may be optically scanned, for example by paper or other medium, followed by editing, interpretation or, if appropriate, other suitable The method is processed to obtain the program electronically and then stored in computer memory.

It should be understood that portions of the invention may be implemented in hardware, software, firmware or a combination thereof. In the above-described embodiments, multiple steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented by any one or combination of the following techniques well known in the art: having logic gates for implementing logic functions on data signals. Discrete logic circuits, application specific integrated circuits with suitable combinational logic gates, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), etc.

In the description of the present specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like means a specific feature described in connection with the embodiment or example. A structure, material or feature is included in at least one embodiment or example of the invention. In the present specification, the schematic representation of the above terms does not necessarily mean the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

While the embodiments of the present invention have been shown and described, the embodiments of the invention may The scope of the invention is defined by the claims and their equivalents.

Claims (10)

A method for processing a video file in a wireless screen, comprising: Detecting a user's instruction to open a video file; Determining, according to whether the video file meets the preset information, whether the receiving end of the wireless screen supports the streaming play of the video file, where the preset information is a format of the video file supported by the receiving end; If yes, the video file is streamed to the receiving end for streaming playback, and the wireless transmission between the source end of the wireless screen and the receiving end is stopped. The method for processing a video file in a wireless screen according to claim 1, wherein before the step of detecting an instruction to open a video file by the user, the processing method further includes: The video file is associated to the probe program via an operating system interface to enable the video file to be opened by the probe program, the probe program for recording the user's behavior of opening the video file. The method for processing a video file in a wireless screen according to claim 2, wherein the streaming the video file to the receiving end for streaming playback while stopping the source end and the receiving Before the step of wirelessly transmitting between the terminals, the processing method further includes: Receiving a selection play command sent by the user, and determining that the selected play instruction is a first instruction or a second instruction, where the first instruction is to stream the video file to the receiving end for streaming play, where the The second instruction is to play the video file by using a default player; If it is determined that the selected play command is the first instruction, performing streaming of the video file to the receiving end for streaming play, and stopping wireless transmission between the source end and the receiving end The steps of the screen. The method for processing a video file in a wireless screen according to claim 1, wherein the streaming the video file to the receiving end for streaming playback while stopping the source end and the receiving After the step of wirelessly transmitting between the terminals, the processing method further includes: After the streaming end of the video file is completed, the wireless terminal between the source end and the receiving end is restarted. The method for processing a video file in a wireless screen according to claim 1, wherein the determining whether the receiving end of the wireless screen supports the streaming of the video file according to whether the video file meets preset information After the step of playing, the processing method further includes: If the receiving end does not support the streaming of the video file, the default player is called to play the video file, and at the same time, the playing screen is acquired, and the playing screen is re-encoded and sent to the receiving end. The method for processing a video file in a wireless screen according to claim 1, wherein the step of streaming the video file to the receiving end for streaming playback comprises: Establish an HTTP or RTSP server and generate a URL; The video file is sent to the receiving end based on a TCP/IP protocol, so that the receiving end acquires and plays the video file using an HTTP or RTSP protocol. A device for processing a video file in a wireless screen, comprising: a detecting module, configured to detect an instruction that the user opens the video file; a determining module, configured to determine, according to whether the video file meets the preset information, whether the receiving end of the wireless screen supports streaming play of the video file, where the preset information is a video file supported by the receiving end format; a streaming module, configured to: when the determining module determines that the receiving end supports the streaming play of the video file, stream the video file to the receiving end for streaming play, and stop wireless transmission Wireless transmission between the source end and the receiving end. The device for processing a video file in a wireless screen according to claim 7, wherein the processing device further comprises: And an association module, configured to associate the video file to the probe program through an operating system interface, so that the video file can be opened by the probe program, and the probe program is used to record a behavior of the user opening the video file. The device for processing a video file in a wireless screen according to claim 8, wherein the processing device further comprises: a receiving determining module, configured to: when the determining module determines that the receiving end supports the streaming play of the video file, receive a selective play instruction sent by the user, and determine that the selected play instruction is the first instruction or the second Instructing, the first instruction is to stream the video file to the receiving end for streaming play, and the second instruction is to play the video file by using a default player; The streaming module is specifically configured to: when the receiving determining module determines that the selected play instruction is During the first instruction, the video file is streamed to the receiving end for streaming playback, and the wireless transmission between the source end and the receiving end is stopped. The device for processing a video file in a wireless screen according to claim 7, wherein the processing device further comprises: The restarting module is configured to restart the wireless transmission between the source end and the receiving end after the receiving end plays the streaming of the video file.

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