WO2021213221A1 - 多媒体播放方法、装置、计算机设备和存储介质 - Google Patents

多媒体播放方法、装置、计算机设备和存储介质 Download PDF

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Publication number
WO2021213221A1
WO2021213221A1 PCT/CN2021/087067 CN2021087067W WO2021213221A1 WO 2021213221 A1 WO2021213221 A1 WO 2021213221A1 CN 2021087067 W CN2021087067 W CN 2021087067W WO 2021213221 A1 WO2021213221 A1 WO 2021213221A1
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Prior art keywords
target device
target
type
remote control
instruction
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PCT/CN2021/087067
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English (en)
French (fr)
Inventor
古国富
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深圳市万普拉斯科技有限公司
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Publication of WO2021213221A1 publication Critical patent/WO2021213221A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/765—Interface circuits between an apparatus for recording and another apparatus
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
    • H04N21/42204—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
    • H04N21/43632—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wired protocol, e.g. IEEE 1394
    • H04N21/43635—HDMI

Definitions

  • the present disclosure relates to the field of computer technology, and in particular to a multimedia playback method, device, computer equipment, and storage medium.
  • HDMI High Definition Multimedia Interface
  • HDMI is used to send uncompressed audio and video signals in HDMI devices to multimedia playback devices.
  • a Digital Versatile Disc (DVD) device sends audio and video signals to a television (TV) through an HDMI interface.
  • TV television
  • the HDMI device will send a "continuous play" command based on the Consumer Electronics Control (CEC) protocol, so that the multimedia playback device will receive This command will automatically play multimedia data.
  • CEC Consumer Electronics Control
  • CEC allows a remote control to control all HDMI-connected devices. For example, when a DVD device is connected to a TV through an HDMI interface, a remote control can be used to control the DVD device and TV under the CEC protocol.
  • HDMI equipment manufacturers have different levels of support for CEC. For example, some manufacturers set to send a "link-and-play" command through the CEC protocol before the HDMI device and the multimedia playback device establish an HDMI communication link, but send it at this time The command will be ignored by some multimedia playback devices. Some send the “continuous play” command after the HDMI communication link is established, and some do not send the “continuous play” command at all, which makes the HDMI device unable to achieve a true “continuous play” command. Broadcast".
  • the embodiments of the present disclosure provide a multimedia playback method, device, computer equipment, and storage medium.
  • An embodiment of the present disclosure provides a multimedia playback method, the method includes: when a target device is accessed, determining whether the target device supports a preset target protocol; if the target device supports the preset target protocol, pass The target protocol determines the device type of the target device; when the device type of the target device is the target device type, obtain the current signal source information provided by the target device; decode and play the current signal source information.
  • the method further includes: obtaining a logical address of the target device; and determining the target device's logical address based on the logical address.
  • the device type is recorded as the verification type; it is determined whether the verification type is consistent with the device type; if the verification type is inconsistent with the device type, the device type input box is displayed; based on the input information in the device type input box Correct the device type of the target device.
  • the decoding and playing of the current signal source information includes: obtaining historical playing information; analyzing the current signal source information to obtain current playing information; judging the current playing information Whether the information is the same as the historical playing information; if the current playing information is the same as the historical playing information, stop decoding and playing the current signal source information.
  • the decoding and playing the current signal source information includes: judging whether the decoded signal source information includes multimedia image frames; if the multimedia image frames are not included, obtaining all The physical address of the target device; generate a corresponding wake-up instruction according to the physical address; send the wake-up instruction to the target device corresponding to the physical address based on the target protocol, and the wake-up instruction is used for the target The device changes from the sleep state to the playback state.
  • the method further includes: when a remote control instruction is received, extracting a key value identifier from the remote control instruction; and determining the remote control instruction according to the key value identifier
  • the instruction type is a target instruction type, it is determined whether the target device has a logical address based on the target protocol; if the target device has a logical address, the remote control is commanded according to the logical address Sent to the target device, so that the target device executes the remote control instruction.
  • the method further includes: if the target device does not have a logical address, suspend issuing the remote control instruction to the target device; and execute the Remote control commands.
  • the method further includes: determining whether a return instruction is received again within a preset time period since the return instruction is first received; if so, displaying a preset exit prompt message.
  • the embodiment of the present disclosure also provides a multimedia playback device, which includes:
  • the device type determining module is configured to determine whether the target device supports a preset target protocol when the target device is accessed; if the target device supports the preset target protocol, determine the target device's performance through the target protocol Equipment type;
  • a signal source acquiring module configured to acquire current signal source information provided by the target device when the device type of the target device is the target device type
  • the decoding and playing module is configured to decode and play the current signal source information.
  • the embodiment of the present disclosure further provides a multimedia playback device, including a memory and a processor, the memory stores a computer program, and the processor implements the steps of the foregoing multimedia playback method in the embodiment of the present disclosure when the processor executes the computer program.
  • the embodiment of the present disclosure also provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the steps of the foregoing multimedia playback method in the embodiment of the present disclosure are realized.
  • the device type of the target device can be determined through the target protocol when the target protocol is supported; by judging the target device Whether the device type of is the target device type, you can obtain the current signal source information provided by the target device when it is the target device type, so that you can decode and play the current signal source information provided by the target device immediately after connecting to the target device .
  • the embodiments of the present disclosure can be compatible with different settings of the CEC protocol of the HDMI device manufacturer, and truly realize the "continuous broadcast”.
  • FIG. 1 is a diagram of the application environment of the multimedia playing method in an embodiment of the disclosure
  • FIG. 2 is a schematic flowchart of a multimedia playback method in an embodiment of the disclosure
  • FIG. 3 is a schematic flowchart of a step of obtaining historical playback information in an embodiment of the disclosure
  • Fig. 4 is a structural block diagram 1 of a multimedia playback device in an embodiment of the disclosure.
  • Figure 5 is a second structural block diagram of the multimedia playback device in an embodiment of the disclosure.
  • Fig. 6 is an internal structure diagram of a multimedia device in an embodiment of the disclosure.
  • the multimedia playback method provided by the embodiments of the present disclosure can be applied to the application environment as shown in FIG. 1.
  • the HDMI device 102 communicates with the multimedia playback device 104 through the HDMI channel.
  • the multimedia playback device 104 obtains the device type of the HDMI device 102 through the CEC protocol.
  • the device type of the HDMI device 102 is the target device type, the device type provided by the HDMI device 102 is obtained , And decode and play the signal source information.
  • the HDMI device 102 can be, but is not limited to, various audio recorders, television boxes, recording and playback devices, power amplifier devices and other devices that have HDMI interfaces and can provide signal source information.
  • the multimedia playback device 104 is a device that has an HDMI port and can decode and play signal source information.
  • an embodiment of the present disclosure provides a multimedia playback method. Taking the method applied to the multimedia playback device in FIG. 1 as an example for description, the method includes the following steps:
  • the target device refers to an HDMI device that carries an HDMI port and can provide signal source information.
  • the target device can be an audio recorder, a TV box, a DVD device, a projector, a power amplifier device, etc.
  • the signal source information refers to the audio and video signal provided by the HDMI device, and the multimedia playback device can analyze the audio and video signal to show the corresponding picture and sound to the user.
  • the target protocol may refer to the CEC protocol, and the user can control all the devices connected to the HDMI port by means of the CEC signal. All HDMI devices in a CEC network are directly or indirectly connected to a "root” device, and connected to a "top-down tree” through HDMI cables.
  • the multimedia playback device acts as the "root” node in the CEC network. Switching devices are used as “branches", and different HDMI devices are used as "leaf” nodes.
  • the multimedia playback device has multiple HDMI ports, and each HDMI port can be connected to one or more HDMI devices.
  • the multimedia playback device monitors the level information of each HDMI port.
  • level flip for example, when the port level of the HDMI1 port is flipped from 0V to 5V, it can be considered that the level flipped HDMI port is connected to the target
  • the device for example, can be considered that the target device is connected to the multimedia playback device through the HDMI1 port.
  • All "root” nodes and “leaf” nodes in the CEC network each have a unique logical address, which can uniquely identify an HDMI device or multimedia playback device. For example, set the logical address of the "root" node to 0.
  • the "root” node can dynamically allocate a target device through the CEC protocol. Logical address. If the connected target device supports the CEC protocol and the CEC function is enabled, when receiving the logical address dynamically classified by the "root” node, the target device broadcasts this address to the CEC network based on the CEC protocol to indicate the occupation of the logical address.
  • the multimedia playback device receives the logical address broadcast by the target device, thereby determining that the accessed target device supports the CEC protocol, that is, supports the preset target protocol. If the broadcast information of the target device is still not received within the preset time after the logical address is issued by the "root" node to the target device, it can be considered that the target device does not support the preset CEC protocol.
  • the multimedia playback device sends a logical address read instruction to the connected target device. If the logical address returned by the target device is not received within a preset period of time since the logical address read instruction is issued, it can be considered as this The target device does not support the CEC protocol.
  • all devices in the CEC network should have a physical address .
  • the "root” node determines the number of connected HDMI devices, and assigns a physical address to each HDMI device according to the number of devices.
  • the multimedia playback device reads the physical address and logical address of the target device. When the target device returns only one physical address, it can be considered that the target device does not enable the CEC function or does not support the CEC protocol. At this time, the multimedia playback device generates a prompt message correspondingly. To prompt the user to turn on the CEC function of the target device.
  • the target device does not support the CEC protocol.
  • the connection between the target device and the multimedia playback device has failed when the physical address and the logical address are not received, and the physical address is received but the logical address is not received. It is determined that the target device does not enable the CEC function or does not support the CEC protocol, thereby reducing the probability of misjudgment.
  • the multimedia playback device when it is determined that the target device supports the CEC protocol, the multimedia playback device obtains the physical address of the target device, generates a corresponding device type obtaining instruction based on the obtained physical address, and sends the target device corresponding to the physical address through the CEC protocol Send this instruction.
  • the target device receives the device type acquisition instruction, and returns the device type of the device to the multimedia playback device through the CEC protocol.
  • the device type of the target device includes recording and recording device (Recorder) type, TV box (Tuner) type, playback device (Playback, such as DVD device, set-top box) type, power amplifier (AudiaSystem) type, PureCECSwitch (HDMI splitter) type , Video Processor (VideoProcessor) type, etc.
  • the target device type is, for example, a recording and playback device type (Playback, such as DVD, set-top box).
  • Playback such as DVD, set-top box.
  • the source module in the target device collects the audio and video information that needs to be transmitted, such as collecting the video frame in the DVD, and analyzing the collected audio and video information.
  • the video information is compressed and encoded to obtain the signal source information, and then the signal source information is sent to the target device through the HDMI channel.
  • the multimedia playback device determines whether the target device is a recording and playback device according to the device type returned by the target device.
  • the multimedia playback device pulls the current signal source information provided by the target device from the corresponding HDMI channel according to the physical address of the target device , And transmit the current signal source information to the source playing module of the machine, and the source playing module will decode and play the current signal source.
  • the source playback module is called to decode and play the current signal source information, which can effectively reduce when the target device is a power amplifier, HDMI splitter, etc.
  • the multimedia playback device when the multimedia playback device determines whether the device type of the target device is the target device type, and at the same time it receives the "continuous play" command sent by the target device, the multimedia playback device pauses to determine the device type of the target device, and transfers To obtain the current signal source information provided by the target device, and decode and play the current signal source information.
  • the multimedia playback device when the multimedia playback device is in the process of decoding and playing the current signal source information, when the level of the remaining HDMI ports except the HDMI port corresponding to the target device is detected to change, the multimedia playback device obtains The port ID corresponding to the port whose level has changed, and determine whether the device type corresponding to the device connected to the port whose level has changed is the target device type. If so, the multimedia playback device switches the playback channel to the level change The HDMI channel corresponding to the port, so that the signal source playback module can extract the signal source information from the switched HDMI channel.
  • the multimedia playback device when the multimedia playback device decodes and plays the signal source information in the HDMI1 port, it is determined that the level of the HDMI2 port has been reversed, and the multimedia playback device determines whether the device type corresponding to the device connected to the HDMI2 port is the target type. If so, the multimedia playback device can switch the playback channel from the HDMI1 channel to the HDMI2 channel, and pull the signal source information provided by the target device from the HDMI2 channel. By continuously monitoring the HDMI interface, when a new target device is connected, it can quickly switch to the corresponding playback channel, so that the new signal source information can be played in time.
  • the device type of the target device can be determined by the target protocol when the target protocol is supported; by judging whether the device type of the target device is the target device type, you can When it is the target device type, the current signal source information provided by the target device is obtained, so that the current signal source information provided by the target device can be decoded and played immediately after the target device is connected.
  • the embodiments of the present disclosure can be compatible with the different settings of the CEC protocol of the HDMI device manufacturer, and truly realize the "continuous broadcast”.
  • the method further includes: obtaining the logical address of the target device; determining the device type of the target device based on the logical address, which is recorded as the verification type; and judging the verification type and the prepared type Whether they are consistent; if the verification type is inconsistent with the device type, the device type input box is displayed; the device type of the target device is corrected based on the input information in the device type input box.
  • the multimedia playback device pulls the logical address of the target device, and judges whether the device type reported by the target device is correct according to the pulled logical address. More specifically, the corresponding relationship between the logical address and the device type is pre-stored in the multimedia playback device. For example, since one multimedia playback device can establish HDMI connections with multiple target devices, it can be specified that the multimedia playback device is connected first The logical address of the recording and recording device is 1; the logical address of the second connected recording and recording device is 2; the logical address of the first connected recording and reproducing device is 3, etc.
  • the multimedia playback device When receiving the logical address returned by the target device, the multimedia playback device parses the received logical address according to the corresponding relationship between the logical address and the device type to obtain the device type of the target device.
  • the device type determined based on the logical address is recorded as the verification type in the following.
  • the multimedia playback device judges whether the device type determined according to the device type acquisition instruction is consistent with the verification type. If it is consistent, the device type determined according to the device type acquisition instruction can be considered correct; if it is inconsistent, it can be considered to be determined based on the device type acquisition instruction The device type is incorrect.
  • the multimedia playback device displays the corresponding device type input box on the screen of the machine, so that the user can input the device type of the target device in the input box, and correct the device type based on the device type input by the user.
  • the device type determined by the instruction.
  • the multimedia playback device generates a type label according to the device type input by the user, and sends the type label to the target device based on the CEC protocol, so that the target device correspondingly corrects the device type according to the type label.
  • the probability of misjudgment of the device type can be reduced, thereby improving multimedia playback efficiency.
  • decoding and playing the current signal source information includes:
  • S304 Analyze the current signal source information to obtain current playback information.
  • S306 Determine whether the current playback information is the same as the historical playback information.
  • the signal source information includes playback information
  • the playback information includes port identification and device identification.
  • the target device when the target device is connected to the multimedia playback device based on the HDMI cable, the target device determines the port identifier of the HDMI port located in the multimedia playback device that is accessed, and generates playback information according to the port identifier and its own device identifier. Then, the playback information is embedded in the signal source information, and the signal source information is sent to the multimedia playback device through the HDMI cable.
  • the multimedia playback device parses the playback information in the signal source information to obtain the device identification of the target device and the port identification of the connected port, and then cache the port identification and the device identification in the memory.
  • a free HDMI port refers to an HDMI port in a multimedia device that is not connected to the target device.
  • the signal source information provided by the newly connected target device is used as the current signal source information; the signal source information being parsed and played is used as the historical signal source information.
  • a multimedia playback device has two ports, HDMI1 and HDMI2. While the multimedia playback device decodes and plays the signal source information provided by the HDMI1 port, the multimedia playback device monitors the HDMI2 port. If there is a newly connected target device in the HDMI2 port, the signal source information provided by HDMI1 is used as the historical signal source information, and the signal source information provided by the HDMI2 port is used as the current signal source information.
  • the multimedia playback device analyzes the current playback information in the current signal source information to obtain the first port identifier and the first device identifier associated with the current playback information; and analyzes the historical playback information in the historical signal source information To obtain the second port identifier and the second device identifier associated with the historical playback information.
  • the multimedia playback device determines whether the first port identifier and the first device identifier are the same as the second port identifier and the second device identifier. If they are not the same, the multimedia playback device stops decoding and playing the historical signal source information and switches to the current signal source information.
  • the HDMI port corresponds to the playback channel in the HDMI port, and decodes and plays the current signal source information based on the corresponding playback channel; if the same, the multimedia playback device ignores the current signal source information and continues to decode and play the historical signal source information.
  • the playback channel is switched only when the current playback instruction is different from the historical playback instruction, which can greatly reduce the probability of incorrectly switching the playback channel, thereby improving multimedia playback efficiency.
  • decoding and playing the current signal source information includes: judging whether the decoded signal source information includes multimedia image frames; if the multimedia image frames are not included, obtaining the physical address of the target device; generating according to the physical address Corresponding wake-up command; based on the target protocol, the wake-up command is sent to the target device corresponding to the physical address, and the wake-up command is used to change the target device from the sleep state to the play state.
  • the multimedia playback device forwards the current signal source information to the source playback module in the machine, and the current signal source information is decoded by the source playback module.
  • the multimedia playback device judges whether there is a multimedia image frame in the decoded signal source information. If there is no multimedia image frame, the target device can be considered to be in a sleep state.
  • the multimedia playback device obtains the physical address of the target device and generates it based on the physical address Corresponding wake-up instruction, and send the wake-up instruction to the target device corresponding to the physical address, so that the target device is changed from the sleep state to the play state.
  • the sleep state is an energy-saving mode in which the target device changes from a working state to a waiting state.
  • the multimedia playback device when the multimedia playback device confirms to establish an HDMI connection with the target device, the multimedia playback device directly sends a wake-up instruction to the target device, so that the target device maintains the playback state.
  • the target device when the decoded signal source information does not contain multimedia image frames, it can be considered that the target device is in a sleep state at this time.
  • the target device By automatically sending a wake-up command, the target device can be changed from the sleep state to the playback state, thereby There is no need for the user to manually wake up the target device, thereby improving the efficiency of multimedia playback.
  • the above multimedia playback method further includes: when a remote control instruction is received, extracting a key value identifier from the remote control instruction; determining the instruction type of the remote control instruction according to the key value identifier; when the instruction type is a target instruction In the case of the type, it is determined whether the target device has a logical address based on the target protocol; if the target device has a logical address, the remote control instruction is sent to the target device according to the logical address, so that the target device executes the remote control instruction.
  • the remote control instruction refers to a control instruction generated by the remote control according to a user's key operation.
  • Key value identification refers to information that can uniquely identify a key value. Different keys in the remote control have different key values. For example, the key value corresponding to the "return" button is 45. Therefore, the multimedia playback device can follow the control command The key value carried in determines the key information pressed by the user.
  • the command types of the remote control commands are divided into target command types and non-target command types.
  • the remote control When it is determined that the user presses the "Home" (exit playback channel) button, the remote control generates non-target command types based on the user's key operation.
  • Remote control instructions when it is determined that the user presses any one of the "up”, “down”, “left”, “right”, “OK”, and "return” buttons, the remote control generates a target instruction based on the user's key operation Type of remote control commands.
  • the multimedia playback device When the multimedia playback device receives a remote control instruction, the multimedia playback device extracts the key value identifier from the remote control instruction, and determines the key information pressed by the user according to the key value identifier, and determines the current received by the machine according to the key information Whether the remote control command is the target command type. If it is the target instruction type, that is, when the user presses any one of the "up”, “down”, “left”, “right”, “OK”, and “return” buttons, the multimedia playback device obtains the target device's Logical address, and send remote control instructions to the target device according to the logical address, so that the target device executes the remote control instructions. If it is not the target command type, that is, when the user presses the "Home” button, the multimedia playback device forwards the remote control command to the source playback module of the machine, and the source playback module executes the remote control command.
  • the target instruction type that is, when the user presses any one of the "up”, “down”, “left”,
  • the multimedia playback device determines whether the target device and the multimedia playback device are connected through an HDMI channel. If so, the multimedia playback device acquires the target device based on the CEC protocol and the connected HDMI channel. If not, the multimedia playback device stops pulling the logical address of the target device, and forwards the remote control command to the source playback module of the machine, and the source playback module executes the remote control command.
  • the logical address of the target device is only pulled when the HDMI channel is connected, which can reduce the probability of pulling unnecessary logical addresses, thereby improving the multimedia playback efficient.
  • the multimedia playback device determines whether it can receive the signal source information sent by the target device. If it fails to receive the signal source information sent by the target device, the multimedia playback device will remote control The command is forwarded to the source playback module of the machine, and the source playback module executes the remote control command. Since the multimedia playback device only sends the remote control instructions to the target device after receiving the signal source information sent by the target device, it can reduce the problem of sending remote control instructions to the target device when the target device is damaged and cannot be played. Probability, thereby saving resources consumed for issuing remote control instructions.
  • the remote control instruction can be forwarded to the target device only when the remote control instruction is the target instruction type, thereby reducing the probability of forwarding the "Home" instruction to the target device. This can reduce the probability that when the user presses the "Home” button, but cannot exit the HDMI channel and can only return to the top menu page of the target device, the user experience is greatly improved.
  • the above multimedia playback method further includes: if the target device does not have a logical address, suspending the issuance of the remote control instruction to the target device; and executing the remote control instruction according to the key value identifier.
  • the remote control command is a target command type, but the target device does not have a logical address, it can be considered that the user has turned off the CEC function of the target device, or the CEC function of the target device is damaged, and the multimedia playback device cannot be based on The CEC protocol successfully forwards the remote control instructions to the target device. Therefore, the multimedia playback device forwards the remote control instructions to its own source playback module, and the source playback module executes the remote control instructions.
  • this embodiment due to the unidirectionality of the CEC protocol, after the remote control command is sent to the target device, the target device will not return a prompt message indicating that the remote control command is successfully executed. Therefore, compared to the traditional direct command of the remote control Forwarding to the target device, this embodiment can implement the logic executed by the multimedia playback device when the target device cannot execute the remote control command, thereby greatly improving the user experience.
  • the above multimedia playing method further includes: determining whether the return instruction is received again within a preset time period since the return instruction is first received; if so, displaying the preset exit prompt message.
  • the return instruction refers to a remote control instruction generated according to the key value of the "return" button.
  • the multimedia device when receiving the return instruction, the multimedia device records the receiving time of receiving the return instruction, and determines whether the return instruction is received again within a preset period of time since the return instruction is received. If so, the multimedia playback device obtains the preset exit prompt information, and displays the preset exit prompt information on the screen of the machine to prompt the user to exit the current HDMI channel based on the "Home" button. For example, when the user presses "Back" multiple times in a preset time period, it can be considered that the user does not need to return to the top menu page of the target device at this time, but wants to exit the HDMI channel. At this time, the multimedia playback device displays Preset reminder information.
  • the real intention of the user is inferred, so that corresponding prompts can be made according to the real intention of the user, thereby improving the user experience.
  • an embodiment of the present disclosure further provides a multimedia playback device 400, including: a device type determination module 402, a signal source acquisition module 404, and a decoding playback module 406, wherein:
  • the device type determining module 402 is configured to determine whether the target device supports the preset target protocol when the target device is accessed; if the target device supports the preset target protocol, determine the device type of the target device through the target protocol.
  • the signal source obtaining module 404 is configured to obtain current signal source information provided by the target device when the device type of the target device is the target device type.
  • the decoding and playing module 406 is configured to decode and play the current signal source information.
  • the device type determining module 402 is further configured to obtain the logical address of the target device; determine the device type of the target device based on the logical address, and record it as the verification type; determine whether the verification type and the device type are Consistent; if the verification type is inconsistent with the device type, the device type input box is displayed; the device type of the target device is corrected based on the input information in the device type input box.
  • the signal source information includes playback information
  • the decoding playback module 406 also includes a historical playback information acquisition module 4061, configured to acquire historical playback information; analyze the current signal source information to obtain current playback information; determine the current playback Whether the information is the same as the historical playing information; if the current playing information is the same as the historical playing information, stop decoding and playing the current signal source information.
  • the decoding and playback module 406 further includes an image frame obtaining module 4062, configured to determine whether the decoded signal source information contains multimedia image frames; if the multimedia image frames are not included, obtain the physical address of the target device; The physical address generates a corresponding wake-up command; based on the target protocol, the wake-up command is sent to the target device corresponding to the physical address, and the wake-up command is used for the target device to change from the sleep state to the play state.
  • an image frame obtaining module 4062 configured to determine whether the decoded signal source information contains multimedia image frames; if the multimedia image frames are not included, obtain the physical address of the target device; The physical address generates a corresponding wake-up command; based on the target protocol, the wake-up command is sent to the target device corresponding to the physical address, and the wake-up command is used for the target device to change from the sleep state to the play state.
  • the aforementioned multimedia playback device 400 further includes a remote control instruction acquisition module 408, configured to extract the key value identifier from the remote control instruction when the remote control instruction is received; determine the remote control instruction according to the key value identifier When the instruction type is the target instruction type, determine whether the target device has a logical address based on the target protocol; if the target device has a logical address, send the remote control instructions to the target device according to the logical address so that the target device can execute the remote control instruction.
  • a remote control instruction acquisition module 408 configured to extract the key value identifier from the remote control instruction when the remote control instruction is received; determine the remote control instruction according to the key value identifier When the instruction type is the target instruction type, determine whether the target device has a logical address based on the target protocol; if the target device has a logical address, send the remote control instructions to the target device according to the logical address so that the target device can execute the remote control instruction.
  • the remote control instruction acquisition module 408 is further configured to suspend issuing the remote control instruction to the target device if the target device does not have a logical address; and execute the remote control instruction according to the key value identifier.
  • the remote control instruction acquisition module 408 further includes an exit prompt display module 4081, configured to determine whether the return instruction is received again within a preset period of time since the return instruction is first received; if so, display the preset Exit the prompt message.
  • the various modules in the above-mentioned multimedia playback device can be implemented in whole or in part by software, hardware and a combination thereof.
  • the above-mentioned modules may be embedded in the form of hardware or independent of the processor in the computer equipment, or may be stored in the memory of the computer equipment in the form of software, so that the processor can call and execute the operations corresponding to the above-mentioned modules.
  • the embodiment of the present disclosure also provides a multimedia playback device, and its internal structure diagram may be as shown in FIG. 6.
  • the multimedia playback device includes a processor, a memory, a communication interface, a display screen and an input device connected through a system bus.
  • the processor of the multimedia playback device is used to provide calculation and control capabilities.
  • the memory of the multimedia playback device includes a non-volatile storage medium and an internal memory.
  • the non-volatile storage medium stores an operating system and a computer program.
  • the internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium.
  • the communication interface of the computer device is used for wired or wireless communication with an external terminal.
  • the wireless method can be implemented by wireless fidelity (WIFI), operator network, Near Field Communication (NFC) or other technologies.
  • the computer program is executed by the processor to realize a multimedia playback method.
  • the display screen of the multimedia playback device may be a liquid crystal display screen or an electronic ink display screen, and the input device of the multimedia playback device may be a touch layer covered on the display screen, or a button, trackball or trackball set on the housing of the multimedia playback device.
  • the touchpad can also be an external keyboard, touchpad, or mouse.
  • FIG. 6 is only a block diagram of part of the structure related to the embodiments of the present disclosure, and does not constitute a limitation on the computer equipment to which the embodiments of the present disclosure are applied.
  • the specific computer The device may include more or fewer parts than shown in the figures, or combine certain parts, or have a different arrangement of parts.
  • the multimedia playback device provided by the embodiment of the present disclosure includes a memory and a processor, and a computer program is stored in the memory.
  • the processor implements the steps of the foregoing multimedia playback method in the embodiment of the present disclosure when the processor executes the computer program.
  • the method disclosed in the foregoing embodiment of the present invention may be applied to a processor or implemented by a processor.
  • the processor may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by an integrated logic circuit of hardware in the processor or instructions in the form of software.
  • the foregoing processor may be a general-purpose processor, a digital signal processor (DSP, Digital Signal Processor), or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, and the like.
  • DSP Digital Signal Processor
  • the processor may implement or execute the methods, steps, and logical block diagrams disclosed in the embodiments of the present invention.
  • the general-purpose processor may be a microprocessor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present invention can be directly embodied as execution and completion by a hardware decoding processor, or execution and completion by a combination of hardware and software modules in the decoding processor.
  • the software module may be located in a storage medium, and the storage medium is located in a memory.
  • the processor reads the information in the memory and completes the steps of the foregoing method in combination with its hardware.
  • the multimedia playback device may be used by one or more Application Specific Integrated Circuits (ASIC, Application Specific Integrated Circuit), DSP, Programmable Logic Device (PLD, Programmable Logic Device), and Complex Programmable Logic Device (CPLD).
  • ASIC Application Specific Integrated Circuit
  • DSP Programmable Logic Device
  • PLD Programmable Logic Device
  • CPLD Complex Programmable Logic Device
  • FPGA Field-Programmable Gate Array
  • MCU Microcontroller
  • Microprocessor Microprocessor
  • other electronics Component implementation used to perform the aforementioned method.
  • the embodiment of the present disclosure also provides a computer-readable storage medium on which a computer program is stored.
  • the computer program is executed by a processor, the steps of the foregoing multimedia playback method in the embodiment of the present disclosure are implemented.
  • Non-volatile memory may include read-only memory (Read-Only Memory, ROM), magnetic tape, floppy disk, flash memory, or optical storage.
  • Volatile memory may include random access memory (RAM) or external cache memory.
  • RAM may be in various forms, such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), etc.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Human Computer Interaction (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

本公开实施例公开了一种多媒体播放方法、装置、计算机设备和存储介质。所述方法包括：当接入目标设备时，判断目标设备是否支持预设的目标协议；若所述目标设备支持预设的目标协议，通过目标协议确定目标设备的设备类型；当目标设备的设备类型为目标设备类型时，获取目标设备提供的当前信号源信息；对当前信号源信息进行解码播放。

Description

多媒体播放方法、装置、计算机设备和存储介质
相关申请的交叉引用
本公开基于申请号为202010328192.4、申请日为2020年04月23日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此以引入方式并入本公开。
技术领域
本公开涉及计算机技术领域，特别是涉及一种多媒体播放方法、装置、计算机设备和存储介质。
背景技术
随着科学技术的发展，越来越多人选择通过高清多媒体接口(High Definition Multimedia Interface，HDMI)进行多媒体播放。HDMI用于将HDMI设备中的未压缩的音频及视频信号发送至多媒体播放设备，比如，数字通用光盘(Digital Versatile Disc，DVD)设备通过HDMI接口将音视频信号发送至电视机(TV)。当按下HDMI设备的播放按钮，或向HDMI设备插入光碟时，HDMI设备会基于消费者电子控制(Consumer Electronics Control，CEC)协议发送一条“一连即播”命令，以使多媒体播放设备在接收到此条命令时自动进行多媒体数据播放。CEC允许一个遥控器控制所有被HDMI连接的设备，比如，当DVD设备通过HDMI接口与TV相连时，即可在CEC协议下通过一个遥控器控制DVD设备以及TV。
但是，HDMI设备厂商对CEC的支持参次不齐，比如，有的厂商设置在HDMI设备与多媒体播放设备建立HDMI通信链路之前，即通过CEC协议发送“一连即播”命令，但此时发送的命令会被部分多媒体播放设备忽 略，有的是在建立HDMI通信链路之后发送“一连即播”命令，有的则根本不发送“一连即播”命令，从而使得HDMI设备不能做到真正的“一连即播”。
发明内容
基于此，本公开实施例提供一种多媒体播放方法、装置、计算机设备和存储介质。
本公开实施例提供的一种多媒体播放方法，所述方法包括：当接入目标设备时，判断所述目标设备是否支持预设的目标协议；若所述目标设备支持预设的目标协议，通过所述目标协议确定所述目标设备的设备类型；当所述目标设备的设备类型为目标设备类型时，获取所述目标设备提供的当前信号源信息；对所述当前信号源信息进行解码播放。
在本公开实施例的一个实施例中，所述通过所述目标协议确定所述目标设备的设备类型之后还包括：获取所述目标设备的逻辑地址；基于所述逻辑地址确定所述目标设备的设备类型，记作验证类型；判断所述验证类型与所述设备类型是否一致；若所述验证类型与所述设备类型不一致，展示设备类型输入框；基于所述设备类型输入框内的输入信息修正所述目标设备的设备类型。
在本公开实施例的一个实施例中，所述对所述当前信号源信息进行解码播放包括：获取历史播放信息；对所述当前信号源信息进行解析，得到当前播放信息；判断所述当前播放信息是否与所述历史播放信息相同；若所述当前播放信息与所述历史播放信息相同，停止对所述当前信号源信息进行解码播放。
在本公开实施例的一个实施例中，所述对所述当前信号源信息进行解码播放包括：判断解码后的信号源信息中是否包含多媒体图像帧；若不包含所述多媒体图像帧，获取所述目标设备的物理地址；根据所述物理地址 生成对应的唤醒指令；基于所述目标协议将所述唤醒指令发送至与所述物理地址相对应的目标设备，所述唤醒指令用于所述目标设备从睡眠状态变更为播放状态。
在本公开实施例的一个实施例中，所述方法还包括：当接收到遥控器指令时，从所述遥控器指令中提取出键值标识；根据所述键值标识确定所述遥控器指令的指令类型；当所述指令类型为目标指令类型时，基于所述目标协议判断所述目标设备是否存在逻辑地址；若所述目标设备存在逻辑地址，根据所述逻辑地址将所述遥控器指令发送至所述目标设备，以使所述目标设备执行所述遥控器指令。
在本公开实施例的一个实施例中，所述方法还包括：若所述目标设备不存在逻辑地址，暂停下发所述遥控器指令至所述目标设备；根据所述键值标识执行所述遥控器指令。
在本公开实施例的一个实施例中，所述方法还包括：判断自首次接收到返回指令起预设时间段内，是否再次接收到返回指令；若是，展示预设的退出提示信息。
本公开实施例还提供了一种多媒体播放装置，所述装置包括：
设备类型确定模块，配置为当接入目标设备时，判断所述目标设备是否支持预设的目标协议；若所述目标设备支持预设的目标协议，通过所述目标协议确定所述目标设备的设备类型；
信号源获取模块，配置为当所述目标设备的设备类型为目标设备类型时，获取所述目标设备提供的当前信号源信息；
解码播放模块，配置为对所述当前信号源信息进行解码播放。
本公开实施例还提供了一种多媒体播放设备，包括存储器和处理器，所述存储器存储有计算机程序，所述处理器执行所述计算机程序时实现本公开实施例前述多媒体播放方法的步骤。
本公开实施例还提供了一种计算机可读存储介质，其上存储有计算机程序，所述计算机程序被处理器执行时实现本公开实施例前述多媒体播放方法的步骤。
本公开实施例的多媒体播放方法、装置、计算机设备和存储介质，通过判断目标设备是否支持预设的目标协议，可以在支持目标协议时，通过目标协议确定目标设备的设备类型；通过判断目标设备的设备类型是否为目标设备类型，可以在为目标设备类型时，获取目标设备所提供的当前信号源信息，从而可以在接入目标设备之后，立即对目标设备提供的当前信号源信息进行解码播放。相比于传统的基于“一连即播”命令进行多媒体播放，本公开实施例可以兼容HDMI设备厂商对CEC协议的不同设置，真正实现“一连即播”。
附图说明
图1为本公开实施例中多媒体播放方法的应用环境图；
图2为本公开实施例中多媒体播放方法的流程示意图；
图3为本公开实施例中历史播放信息获取步骤的流程示意图；
图4为本公开实施例中多媒体播放装置的结构框图一；
图5为本公开实施例中多媒体播放装置的结构框图二；
图6为本公开实施例中多媒体设备的内部结构图。
具体实施方式
为了使本公开实施例的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本公开实施例进行进一步详细说明。应当理解，此处描述的具体实施例仅仅用以解释本公开，并不用于限定本公开。
本公开实施例提供的多媒体播放方法，可以应用于如图1所示的应用环境中。其中，HDMI设备102通过HDMI通道与多媒体播放设备104进 行通信。当HDMI设备102基于HDMI端口与多媒体播放设备104相连接时，多媒体播放设备104通过CEC协议获取HDMI设备102的设备类型，当HDMI设备102的设备类型为目标设备类型时，获取HDMI设备102所提供的信号源信息，并对信号源信息进行解码播放。其中，HDMI设备102可以但不限于是各种带有HDMI接口、并且可以提供信号源信息的录音录像机、电视盒子、录放设备、功放设备等设备。多媒体播放设备104为带有HDMI端口、并且可以对信号源信息进行解码播放的设备。
在一个实施例中，如图2所示，本公开实施例提供了一种多媒体播放方法，以该方法应用于图1中的多媒体播放设备为例进行说明，包括以下步骤：
S202，当接入目标设备时，判断目标设备是否支持预设的目标协议。
其中，目标设备是指携带有HDMI端口、并且能够提供信号源信息的HDMI设备。比如，目标设备可以为录音录像机、电视盒子、DVD设备、投影仪、功放设备等。信号源信息是指HDMI设备所提供的音视频信号，多媒体播放设备可以对此音视频信号进行解析，从而向用户展示相应的画面和声音。目标协议可以是指CEC协议，用户可以凭借CEC信号控制HDMI端口上所连接的全部装置。一个CEC网络内的所有HDMI设备都直接或间接连接到一个“根”设备，并通过HDMI线连接成一个“自上而下的树”，多媒体播放设备作为CEC网络内的“根”节点，信号开关设备作为“枝”，不同的HDMI设备作为“叶”节点。
示例性的，多媒体播放设备中具有多个HDMI端口，通过各HDMI端口可以与一个或多个HDMI设备相连。多媒体播放设备监控各HDMI端口的电平信息，当确定有电平翻转时，比如，当HDMI1端口的端口电平由0V翻转为5V时，则可以认为电平翻转了的HDMI端口接入了目标设备，比如，可以认为目标设备通过HDMI1端口与多媒体播放设备相连接。
CEC网络内所有的“根”节点以及“叶”节点均各自拥有一个唯一的逻辑地址，该逻辑地址可以唯一标识一个HDMI设备或多媒体播放设备。例如，设定“根”节点的逻辑地址为0，当接入一个“叶”节点时，即当接入一个目标设备时，“根”节点可以通过CEC协议为接入的目标设备动态分配一个逻辑地址。若接入的目标设备支持CEC协议且已开启CEC功能，在接收到“根”节点动态分类的逻辑地址时，目标设备基于CEC协议向CEC网络广播此地址，以表示对此逻辑地址的占用。多媒体播放设备接收目标设备广播的逻辑地址，从而确定接入的目标设备支持CEC协议，即支持预设的目标协议。若在“根”节点下发逻辑地址至目标设备起、预设时长内依旧未接收到目标设备的广播信息，则可以认为目标设备不支持预设CEC协议。
在一个实施例中，多媒体播放设备向接入的目标设备发送逻辑地址读取指令，若在下发逻辑地址读取指令起，预设时长内未接收到目标设备返回的逻辑地址，则可以认为此目标设备不支持CEC协议。
在一个实施例中，为了使“根”节点能够查询、控制各“叶”节点，CEC网络内的全部设备(包括未开启CEC功能的设备以及不支持CEC协议的设备)均应具备一个物理地址。“根”节点确定接入的HDMI设备的设备数量，并根据设备数量为每一个HDMI设备分配一个物理地址。多媒体播放设备读取目标设备的物理地址以及逻辑地址，当目标设备仅返回一个物理地址时，则可以认为目标设备未开启CEC功能或不支持CEC协议，此时多媒体播放设备对应生成提示消息，用以提示用户打开目标设备的CEC功能。若在展示提示消息起预设时长内，均未接收到目标设备返回的逻辑地址，则可以认为此目标设备不支持CEC协议。通过分别获取物理地址以及逻辑地址，可以在即接收不到物理地址，又接收不到逻辑地址时，判定目标设备与多媒体播放设备连接失败，在接收到物理地址，但未接收到逻 辑地址时，才判定目标设备未开启CEC功能或不支持CEC协议，从而可以减少误判的概率。
S204，若目标设备支持预设的目标协议，通过目标协议确定目标设备的设备类型。
示例性的，当确定目标设备支持CEC协议时，多媒体播放设备获取目标设备的物理地址，基于获取得到的物理地址生成相应的设备类型获取指令，并通过CEC协议向与物理地址相对应的目标设备发送此指令。目标设备接收设备类型获取指令，并通过CEC协议向多媒体播放设备返回设备的设备类型。其中，目标设备的设备类型包括录音录像设备(Recorder)类型、电视盒子(Tuner)类型、录放设备(Playback，如DVD设备、机顶盒)类型、功放(AudiaSystem)类型、PureCECSwitch(HDMI分线器)类型、视频处理器(VideoProcessor)类型等。
S206，当目标设备的设备类型为目标设备类型时，获取目标设备提供的当前信号源信息。
S208，对当前信号源信息进行解码播放。
其中，目标设备类型例如为录放设备类型(Playback，如DVD、机顶盒)。
示例性的，当用户在目标设备中插入DVD或者按下播放按钮时，目标设备中的信源模块采集需要进行传输的音视频信息，比如采集DVD中的视频画面帧，并对采集得到的音视频信息进行压缩编码，得到信号源信息，之后，通过HDMI通道将信号源信息发送至目标设备。多媒体播放设备根据目标设备返回的设备类型，判断目标设备是否为录放设备，若为录放设备，多媒体播放设备根据目标设备的物理地址从对应的HDMI通道中拉取目标设备所提供的当前信号源信息，并将当前信号源信息传输至本机的信源播放模块，由信源播放模块对当前信号源进行解码播放。
通过对目标设备的设备类型进行判断，只有在目标设备为录放设备时， 才调用信源播放模块对当前信号源信息进行解码播放，可以有效减少当目标设备为功放、HDMI分线器等不提供画面信息的设备时，信源播放模块播出的画面为黑屏的概率。
在一个实施例中，在多媒体播放设备判断目标设备的设备类型是否为目标设备类型的同时，接收到目标设备发送的“一连即播”命令时，多媒体播放设备暂停判断目标设备的设备类型，转为获取目标设备所提供的当前信号源信息，并对当前信号源信息进行解码播放。
在一个实施例中，当多媒体播放设备对当前信号源信息进行解码播放的过程中，监测到除与目标设备相对应的HDMI端口之外的其余HDMI端口的电平发生变化时，多媒体播放设备获取电平发生变化的端口所对应的端口标识，并判断接入电平发生变化的端口的设备所对应的设备类型是否为目标设备类型，若是，多媒体播放设备将播放通道切换至与电平发生变化的端口相对应的HDMI通道，以使信号源播放模块从切换后的HDMI通道中提取信号源信息。比如，在多媒体播放设备对HDMI1端口中的信号源信息进行解码播放的同时，确定HDMI2端口的电平发生了翻转，多媒体播放设备判断接入HDMI2端口的设备所对应的设备类型是否为目标类型，若是，多媒体播放设备可以将播放通道从HDMI1通道切换至HDMI2通道，并从HDMI2通道中拉取目标设备提供的信号源信息。通过对HDMI接口进行持续监控，使得当有新的目标设备接入时，可以快速切换至相应的播放通道，从而能够及时播放新的信号源信息。
上述多媒体播放方法中，通过判断目标设备是否支持预设的目标协议，可以在支持目标协议时，通过目标协议确定目标设备的设备类型；通过判断目标设备的设备类型是否为目标设备类型，可以在为目标设备类型时，获取目标设备所提供的当前信号源信息，从而可以在接入目标设备之后，立即对目标设备提供的当前信号源信息进行解码播放。相比于传统的基于 “一连即播”命令进行多媒体播放，本公开实施例可以兼容HDMI设备厂商对CEC协议的不同设置，真正实现“一连即播”。
在一个实施例中，通过目标协议确定所述目标设备的设备类型之后还包括：获取目标设备的逻辑地址；基于逻辑地址确定目标设备的设备类型，记作验证类型；判断验证类型与所备类型是否一致；若验证类型与设备类型不一致，展示设备类型输入框；基于设备类型输入框内的输入信息修正目标设备的设备类型。
示例性的，当接收到目标设备基于设备类型获取指令返回的设备类型时，多媒体播放设备拉取目标设备的逻辑地址，并根据拉取到的逻辑地址判断目标设备上报的设备类型是否正确。更具体地，多媒体播放设备中预存储有逻辑地址与设备类型之间的对应关系，比如，由于一个多媒体播放设备可以与多个目标设备建立HDMI连接，因此可以规定第一个接入多媒体播放设备的录音录像设备的逻辑地址为1；第二个接入的录音录像设备的逻辑地址为2；第一个接入的录放设备的逻辑地址为3等。
当接收到目标设备返回的逻辑地址时，多媒体播放设备根据逻辑地址与设备类型之间的对应关系对接收到的逻辑地址进行解析，得到目标设备的设备类型。为了描述方便，下述将基于逻辑地址确定的设备类型记作验证类型。多媒体播放设备判断根据设备类型获取指令确定的设备类型是否与验证类型一致，若一致，则可以认为根据设备类型获取指令确定的设备类型正确无误；若不一致，则可以认为根据设备类型获取指令确定的设备类型有误，此时，多媒体播放设备在本机屏幕中展示对应的设备类型输入框，以使用户在输入框内输入目标设备的设备类型，并基于用户输入的设备类型修正根据设备类型获取指令确定的设备类型。
在其中一个实施例中，多媒体播放设备根据用户输入的设备类型生成类型标签，基于CEC协议将类型标签发送至目标设备，以使目标设备根据 类型标签对应修正设备类型。
本实施例中，通过双重确定目标设备的设备类型，可以减少对设备类型误判断的概率，从而提升多媒体播放效率。
在一个实施例中，如图3所示，对当前信号源信息进行解码播放包括：
S302，获取历史播放指令。
S304，对当前信号源信息进行解析，得到当前播放信息。
S306，判断当前播放信息是否与历史播放信息相同。
S308，若当前播放信息与历史播放信息相同，停止对当前信号源信息进行解码播放。
其中，信号源信息包括播放信息，播放信息中包括端口标识以及设备标识。
示例性的，当目标设备基于HDMI线与多媒体播放设备相连接时，目标设备确定所接入的位于多媒体播放设备中的HDMI端口的端口标识，并根据端口标识以及自身的设备标识生成播放信息，之后将播放信息内嵌于信号源信息中，并通过HDMI线将信号源信息发送至多媒体播放设备。多媒体播放设备对信号源信息中的播放信息进行解析，得到目标设备的设备标识，以及相连接端口的端口标识，之后将端口标识以及设备标识缓存于内存中。
在多媒体设备对信号源信息进行解析播放的同时，多媒体设备确定本机中的空闲HDMI端口，并对空闲HDMI端口进行持续监控。空闲HDMI端口是指位于多媒体设备中的未接入目标设备的HDMI端口。当确定空闲HDMI端口中具有新接入的目标设备时，将新接入的目标设备所提供的信号源信息作为当前信号源信息；将正在解析播放的信号源信息作为历史信号源信息。比如，多媒体播放设备中具有HDMI1以及HDMI2两个端口，在多媒体播放设备对HDMI1端口所提供的信号源信息进行解码播放的同 时，多媒体播放设备对HDMI2端口进行监控。若HDMI2端口中具有新接入的目标设备时，将HDMI1所提供的信号源信息作为历史信号源信息，将HDMI2端口所提供的信号源信息作为当前信号源信息。
与此同时，多媒体播放设备对当前信号源信息中的当前播放信息进行解析，得到与当前播放信息相关联的第一端口标识以及第一设备标识；对历史信号源信息中的历史播放信息进行解析，得到与历史播放信息相关联的第二端口标识以及第二设备标识。多媒体播放设备判断第一端口标识以及第一设备标识与第二端口标识以及第二设备标识是否相同，若不相同，多媒体播放设备停止对历史信号源信息进行解码播放，切换至与当前信号源信息中的HDMI端口相对应的播放通道，并基于相对应的播放通道对当前信号源信息进行解码播放；若相同，多媒体播放设备忽略当前信号源信息，继续对历史信号源信息进行解码播放。
本实施例中，通过对当前播放信息以及历史播放信息进行对比，在当前播放指令与历史播放指令不相同时，才切换播放通道，可以大大减少误切换播放通道的概率，从而提升多媒体播放效率。
在一个实施例中，对所述当前信号源信息进行解码播放包括：判断解码后的信号源信息中是否包含多媒体图像帧；若不包含多媒体图像帧，获取目标设备的物理地址；根据物理地址生成对应的唤醒指令；基于目标协议将唤醒指令发送至与物理地址相对应的目标设备，唤醒指令用于目标设备从睡眠状态变更为播放状态。
示例性的，多媒体播放设备将当前信号源信息转发至本机中的信源播放模块，由信源播放模块对当前信号源信息进行解码。多媒体播放设备判断解码后的信号源信息中是否存在多媒体图像帧，若不存在多媒体图像帧，则可以认为目标设备处于睡眠状态，此时，多媒体播放设备获取目标设备的物理地址，根据物理地址生成相应的唤醒指令，并将唤醒指令发送至与 物理地址相对应的目标设备，以使目标设备从睡眠状态变更为播放状态。其中，睡眠状态是目标设备由工作状态转为等待状态的一种节能模式。
在其中一个实施例中，当多媒体播放设备确认与目标设备建立HDMI连接时，多媒体播放设备直接将唤醒指令发送至目标设备，以使目标设备保持播放状态。
本实施例中，当解码后的信号源信息中不包含多媒体图像帧时，可以认为此时的目标设备处于睡眠状态，通过自动发送唤醒指令，可以使目标设备从睡眠状态变更为播放状态，从而无需用户手动唤醒目标设备，进而提升了多媒体的播放效率。
在一个实施例中，上述多媒体播放方法还包括：当接收到遥控器指令时，从遥控器指令中提取出键值标识；根据键值标识确定遥控器指令的指令类型；当指令类型为目标指令类型时，基于目标协议判断所述目标设备是否存在逻辑地址；若目标设备存在逻辑地址，根据逻辑地址将遥控器指令发送至目标设备，以使目标设备执行遥控器指令。
其中，遥控器指令是指遥控器根据用户的按键操作而生成的一个控制指令。键值标识是指能够唯一标识一个键值的信息，遥控器中的不同按键具有不同的键值，比如，与“返回”按键相对应的键值为45，因此，多媒体播放设备可以根据控制指令中携带的键值确定用户所按下的按键信息。
示例性的，遥控器指令的指令类型分为目标指令类型以及非目标指令类型，当确定用户按下“Home”(退出播放通道)按键时，遥控器基于用户的按键操作生成非目标指令类型的遥控器指令；当确定用户按下“上”，“下”，“左”，“右”，“确定”，“返回”按键中的任意一个按键时，遥控器基于用户的按键操作生成目标指令类型的遥控器指令。
当多媒体播放设备接收到遥控器指令时，多媒体播放设备从遥控器指令中提取出键值标识，并根据键值标识确定用户所按下的按键信息，并根 据按键信息判断本机当前接收到的遥控器指令是否为目标指令类型。若为目标指令类型，也就是在用户按下“上”，“下”，“左”，“右”，“确定”，“返回”按键中的任意一个按键时，多媒体播放设备获取目标设备的逻辑地址，并根据逻辑地址将遥控器指令发送至目标设备，以使目标设备执行遥控器指令。若不为目标指令类型时，即当用户按下“Home”按键时，多媒体播放设备将遥控器指令转发至本机的信源播放模块，由信源播放模块执行遥控器指令。
在其中一个实施例中，在获取目标设备的逻辑地址之前，多媒体播放设备判断目标设备与多媒体播放设备是否通过HDMI通道相连接，若是，多媒体播放设备基于CEC协议以及相连接的HDMI通道获取目标设备的逻辑地址；若否，多媒体播放设备停止拉取目标设备的逻辑地址，并将遥控器指令转发至本机的信源播放模块，由信源播放模块执行遥控器指令。通过判断目标设备与多媒体播放设备是否通过HDMI通道相连接，在通过HDMI通道相连接时，才拉取目标设备的逻辑地址，可以减少拉取不必要的逻辑地址的概率，从而提升了多媒体播放的效率。
在其中一个实施例中，当得到目标设备的逻辑地址之后，多媒体播放设备判断是否能够接收到目标设备发送的信号源信息，若未能接收到目标设备发送的信号源信息，多媒体播放设备将遥控器指令转发至本机的信源播放模块，由信源播放模块执行遥控器指令。由于多媒体播放设备是在接收到目标设备发送的信号源信息之后，才将遥控器指令发送至目标设备，可以减少当目标设备损坏而无法播放的情况下依旧将遥控器指令下发至目标设备的概率，从而节约了下发遥控器指令所耗费的资源。
本实施例中，通过判断遥控器指令的指令类型，可以在遥控器指令为目标指令类型时，才将遥控器指令转发至目标设备，从而可以减少将“Home”指令转发至目标设备的概率，进而可以减少当用户按下“Home” 按键，却无法退出HDMI通道，只能返回至目标设备的顶层菜单页面的概率，从而大大提升了用户体验。
在一个实施例中，上述多媒体播放方法还包括：若目标设备不存在逻辑地址，暂停下发遥控器指令至所述目标设备；根据键值标识执行遥控器指令。
示例性的，若遥控器指令为目标指令类型，但目标设备不存在逻辑地址时，则可以认为用户关闭了目标设备的CEC功能，或目标设备的CEC功能受损，此时多媒体播放设备无法基于CEC协议将遥控器指令成功转发至目标设备，因此，多媒体播放设备将遥控器指令转发至自身的信源播放模块，由信源播放模块执行遥控器指令。
本实施例中，由于CEC协议的单向性，将遥控器指令发送至目标设备后，目标设备并不会返回成功执行遥控器指令的提示消息，因此，相比于传统的直接将遥控器指令转发至目标设备，本实施例能够实现当目标设备无法执行遥控器指令时，则由多媒体播放设备执行的逻辑，从而大大提升了用户体验。
在一个实施例中，上述多媒体播放方法还包括：判断自首次接收到返回指令起预设时间段内，是否再次接收到返回指令；若是，展示预设的退出提示信息。
其中，返回指令是指根据“返回”按键的键值而生成的遥控器指令。
示例性的，当接收到返回指令时，多媒体设备记录接收返回指令的接收时间，并判断自接收到返回指令起预设时间段内是否再次接收到返回指令。若是，多媒体播放设备获取预设的退出提示信息，并在本机的屏幕中展示预设的退出提示信息，用以提示用户可以基于“Home”按键退出当前的HDMI通道。比如，当用户在预设时间段内连续多次按下“返回”时，可以认为此时用户并不需要返回目标设备的顶层菜单页面，而是希望退出 HDMI通道，此时，多媒体播放设备展示预设的提示信息。
本实施例中，通过判断用户在短时间内是否连续多次按下“返回”按键，来推测用户的真实意图，从而可以根据用户的真实意图进行相应提示，进而提升了用户体验。
应该理解的是，虽然图2、3的流程图中的各个步骤按照箭头的指示依次显示，但是这些步骤并不是必然按照箭头指示的顺序依次执行。除非本文中有明确的说明，这些步骤的执行并没有严格的顺序限制，这些步骤可以以其它的顺序执行。而且，图2、3中的至少一部分步骤可以包括多个步骤或者多个阶段，这些步骤或者阶段并不必然是在同一时刻执行完成，而是可以在不同的时刻执行，这些步骤或者阶段的执行顺序也不必然是依次进行，而是可以与其它步骤或者其它步骤中的步骤或者阶段的至少一部分轮流或者交替地执行。
基于前述实施例，如图4所示，本公开实施例还提供了一种多媒体播放装置400，包括：设备类型确定模块402、信号源获取模块404和解码播放模块406，其中：
设备类型确定模块402，配置为当接入目标设备时，判断目标设备是否支持预设的目标协议；若目标设备支持预设的目标协议，通过目标协议确定目标设备的设备类型。
信号源获取模块404，配置为当目标设备的设备类型为目标设备类型时，获取目标设备提供的当前信号源信息。
解码播放模块406，配置为对当前信号源信息进行解码播放。
在其中一个实施例中，如图5所示，设备类型确定模块402还配置为获取目标设备的逻辑地址；基于逻辑地址确定目标设备的设备类型，记作验证类型；判断验证类型与设备类型是否一致；若验证类型与设备类型不一致，展示设备类型输入框；基于设备类型输入框内的输入信息修正目标 设备的设备类型。
在其中一个实施例中，信号源信息包括播放信息；解码播放模块406还包括历史播放信息获取模块4061，配置为获取历史播放信息；对当前信号源信息进行解析，得到当前播放信息；判断当前播放信息是否与历史播放信息相同；若当前播放信息与历史播放信息相同，停止对当前信号源信息进行解码播放。
在其中一个实施例中，解码播放模块406还包括图像帧获取模块4062，配置为判断解码后的信号源信息中是否包含多媒体图像帧；若不包含多媒体图像帧，获取目标设备的物理地址；根据物理地址生成对应的唤醒指令；基于目标协议将唤醒指令发送至与物理地址相对应的目标设备，唤醒指令用于目标设备从睡眠状态变更为播放状态。
在其中一个实施例中，上述多媒体播放装置400还包括遥控器指令获取模块408，配置为当接收到遥控器指令时，从遥控器指令中提取出键值标识；根据键值标识确定遥控器指令的指令类型；当指令类型为目标指令类型时，基于目标协议判断目标设备是否存在逻辑地址；若目标设备存在逻辑地址，根据逻辑地址将遥控器指令发送至目标设备，以使目标设备执行遥控器指令。
在其中一个实施例中，遥控器指令获取模块408还配置为若目标设备不存在逻辑地址，暂停下发遥控器指令至目标设备；根据键值标识执行遥控器指令。
在其中一个实施例中，遥控器指令获取模块408还包括退出提示展示模块4081，配置为判断自首次接收到返回指令起预设时间段内，是否再次接收到返回指令；若是，展示预设的退出提示信息。
关于多媒体播放装置的具体限定可以参见上文中对于多媒体播放方法的限定，在此不再赘述。上述多媒体播放装置中的各个模块可全部或部分 通过软件、硬件及其组合来实现。上述各模块可以硬件形式内嵌于或独立于计算机设备中的处理器中，也可以以软件形式存储于计算机设备中的存储器中，以便于处理器调用执行以上各个模块对应的操作。
本公开实施例还提供了一种多媒体播放设备，其内部结构图可以如图6所示。该多媒体播放设备包括通过系统总线连接的处理器、存储器、通信接口、显示屏和输入装置。其中，该多媒体播放设备的处理器用于提供计算和控制能力。该多媒体播放设备的存储器包括非易失性存储介质、内存储器。该非易失性存储介质存储有操作系统和计算机程序。该内存储器为非易失性存储介质中的操作系统和计算机程序的运行提供环境。该计算机设备的通信接口用于与外部的终端进行有线或无线方式的通信，无线方式可通过无线保真(WIFI)、运营商网络、近场通信(Near Field Communication，NFC)或其他技术实现。该计算机程序被处理器执行时以实现一种多媒体播放方法。该多媒体播放设备的显示屏可以是液晶显示屏或者电子墨水显示屏，该多媒体播放设备的输入装置可以是显示屏上覆盖的触摸层，也可以是多媒体播放设备外壳上设置的按键、轨迹球或触控板，还可以是外接的键盘、触控板或鼠标等。
本领域技术人员可以理解，图6中示出的结构，仅仅是与本公开实施例相关的部分结构的框图，并不构成对本公开实施例所应用于其上的计算机设备的限定，具体的计算机设备可以包括比图中所示更多或更少的部件，或者组合某些部件，或者具有不同的部件布置。
本公开实施例提供的多媒体播放设备，包括存储器和处理器，存储器中存储有计算机程序，该处理器执行计算机程序时实现本公开实施例前述多媒体播放方法的步骤。
上述本发明实施例揭示的方法可以应用于处理器中，或者由处理器实现。处理器可能是一种集成电路芯片，具有信号的处理能力。在实现过程 中，上述方法的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(DSP，Digital Signal Processor)，或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。处理器可以实现或者执行本发明实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者任何常规的处理器等。结合本发明实施例所公开的方法的步骤，可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于存储介质中，该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成前述方法的步骤。
在示例性实施例中，多媒体播放装置可以被一个或多个应用专用集成电路(ASIC，Application Specific Integrated Circuit)、DSP、可编程逻辑器件(PLD，Programmable Logic Device)、复杂可编程逻辑器件(CPLD，Complex Programmable Logic Device)、现场可编程门阵列(FPGA，Field-Programmable Gate Array)、通用处理器、控制器、微控制器(MCU，Micro Controller Unit)、微处理器(Microprocessor)、或其他电子元件实现，用于执行前述方法。
本公开实施例还提供了一种计算机可读存储介质，其上存储有计算机程序，计算机程序被处理器执行时实现本公开实施例前述多媒体播放方法的步骤。
本公开所提供的几个方法或设备实施例中所揭露的特征，在不冲突的情况下可以任意组合，得到新的方法实施例或设备实施例。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程，是可以通过计算机程序来指令相关的硬件来完成，所述的计算机程序可存储于一非易失性计算机可读取存储介质中，该计算机程序在执行时，可包括如上述各方法的实施例的流程。其中，本公开所提供的各实施例中 所使用的对存储器、存储、数据库或其它介质的任何引用，均可包括非易失性和易失性存储器中的至少一种。非易失性存储器可包括只读存储器(Read-Only Memory，ROM)、磁带、软盘、闪存或光存储器等。易失性存储器可包括随机存取存储器(Random Access Memory，RAM)或外部高速缓冲存储器。作为说明而非局限，RAM可以是多种形式，比如静态随机存取存储器(Static Random Access Memory，SRAM)或动态随机存取存储器(Dynamic Random Access Memory，DRAM)等。
以上实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本公开的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本公开构思的前提下，还可以做出若干变形和改进，这些都属于本公开实施例的保护范围。因此，本公开实施例的保护范围应以所附权利要求为准。

Claims (16)

  1. 一种多媒体播放方法，所述方法包括：
    当接入目标设备时，判断所述目标设备是否支持预设的目标协议；
    若所述目标设备支持预设的目标协议，通过所述目标协议确定所述目标设备的设备类型；
    当所述目标设备的设备类型为目标设备类型时，获取所述目标设备提供的当前信号源信息；
    对所述当前信号源信息进行解码播放。
  2. 根据权利要求1所述的方法，其中，所述通过所述目标协议确定所述目标设备的设备类型之后还包括：
    获取所述目标设备的逻辑地址；
    基于所述逻辑地址确定所述目标设备的设备类型，记作验证类型；
    判断所述验证类型与所述设备类型是否一致；
    若所述验证类型与所述设备类型不一致，展示设备类型输入框；
    基于所述设备类型输入框内的输入信息修正所述目标设备的设备类型。
  3. 根据权利要求1所述的方法，其中，所述信号源信息包括播放信息；所述对所述当前信号源信息进行解码播放包括：
    获取历史播放信息；
    对所述当前信号源信息进行解析，得到当前播放信息；
    判断所述当前播放信息是否与所述历史播放信息相同；
    若所述当前播放信息与所述历史播放信息相同，停止对所述当前信号源信息进行解码播放。
  4. 根据权利要求1所述的方法，其中，所述对所述当前信号源信息进行解码播放包括：
    判断解码后的信号源信息中是否包含多媒体图像帧；
    若不包含所述多媒体图像帧，获取所述目标设备的物理地址；
    根据所述物理地址生成对应的唤醒指令；
    基于所述目标协议将所述唤醒指令发送至与所述物理地址相对应的目标设备，所述唤醒指令用于所述目标设备从睡眠状态变更为播放状态。
  5. 根据权利要求1所述的方法，其中，所述方法还包括：
    当接收到遥控器指令时，从所述遥控器指令中提取出键值标识；
    根据所述键值标识确定所述遥控器指令的指令类型；
    当所述指令类型为目标指令类型时，基于所述目标协议判断所述目标设备是否存在逻辑地址；
    若所述目标设备存在逻辑地址，根据所述逻辑地址将所述遥控器指令发送至所述目标设备，以使所述目标设备执行所述遥控器指令。
  6. 根据权利要求5所述的方法，其中，所述方法还包括：
    若所述目标设备不存在逻辑地址，暂停下发所述遥控器指令至所述目标设备；
    根据所述键值标识执行所述遥控器指令。
  7. 根据权利要求5所述的方法，其中，所述遥控器指令包括返回指令；所述方法还包括：
    判断自首次接收到返回指令起预设时间段内，是否再次接收到返回指令；
    若是，展示预设的退出提示信息。
  8. 一种多媒体播放装置，所述装置包括：
    设备类型确定模块，配置为当接入目标设备时，判断所述目标设备是否支持预设的目标协议；若所述目标设备支持预设的目标协议，通过所述目标协议确定所述目标设备的设备类型；
    信号源获取模块，配置为当所述目标设备的设备类型为目标设备类型时，获取所述目标设备提供的当前信号源信息；
    解码播放模块，配置为对所述当前信号源信息进行解码播放。
  9. 根据权利要求8所述的装置，其中，所述设备类型确定模块，还配置为获取所述目标设备的逻辑地址；基于所述逻辑地址确定所述目标设备的设备类型，记作验证类型；判断所述验证类型与所述设备类型是否一致；若所述验证类型与所述设备类型不一致，展示设备类型输入框；基于所述设备类型输入框内的输入信息修正所述目标设备的设备类型。
  10. 根据权利要求8所述的装置，其中，所述信号源信息包括播放信息；
    所述解码播放模块包括历史播放信息获取模块，配置为获取历史播放信息；对所述当前信号源信息进行解析，得到当前播放信息；判断所述当前播放信息是否与所述历史播放信息相同；若所述当前播放信息与所述历史播放信息相同，停止对所述当前信号源信息进行解码播放。
  11. 根据权利要求8所述的装置，其中，所述解码播放模块包括图像帧获取模块，配置为判断解码后的信号源信息中是否包含多媒体图像帧；若不包含所述多媒体图像帧，获取所述目标设备的物理地址；根据所述物理地址生成对应的唤醒指令；基于所述目标协议将所述唤醒指令发送至与所述物理地址相对应的目标设备，所述唤醒指令用于所述目标设备从睡眠状态变更为播放状态。
  12. 根据权利要求8所述的装置，其中，所述装置还包括遥控器指令获取模块，配置为当接收到遥控器指令时，从所述遥控器指令中提取出键值标识；根据所述键值标识确定所述遥控器指令的指令类型；当所述指令类型为目标指令类型时，基于所述目标协议判断所述目标设备是否存在逻辑地址；若所述目标设备存在逻辑地址，根据所述逻辑地址将所述遥控器 指令发送至所述目标设备，以使所述目标设备执行所述遥控器指令。
  13. 根据权利要求12所述的装置，其中，所述遥控器指令获取模块，还配置为若所述目标设备不存在逻辑地址，暂停下发所述遥控器指令至所述目标设备；根据所述键值标识执行所述遥控器指令。
  14. 根据权利要求12所述的装置，其中，所述遥控器指令包括返回指令；
    所述遥控器指令获取模块包括退出提示展示模块，配置为判断自首次接收到返回指令起预设时间段内，是否再次接收到返回指令；若是，展示预设的退出提示信息。
  15. 一种多媒体播放设备，包括存储器和处理器，所述存储器存储有计算机程序，所述处理器执行所述计算机程序时实现权利要求1至7中任一项所述的方法的步骤。
  16. 一种计算机可读存储介质，其上存储有计算机程序，所述计算机程序被处理器执行时实现权利要求1至7中任一项所述的方法的步骤。
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