CN101459818A - Bluetooth stream media playing control method and stop control method - Google Patents

Abstract

The invention discloses a bluetooth streaming media playback control method and a stop control method. The playback control method includes the following steps: (a) suspending transmission of streaming media data between a bluetooth media player and a bluetooth multimedia device, and the user selects a playback operation; (b) ) The Bluetooth media player sends a media stream start notification to the Bluetooth multimedia device on the streaming media transmission link, and the Bluetooth media player and the Bluetooth multimedia device start to transmit streaming media data. The stop control method comprises the following steps: (A) the streaming media transmission link is in the streaming state, and the user selects to stop or pause; (B) the bluetooth media player initiates the release of the audio and video distribution connection with the bluetooth multimedia device or pauses the flow Media transmission, streaming data stop transmission. By adopting the method of the invention, the preparation time for streaming media transmission can be shortened, and the conflict in the link signaling interaction process can be avoided.

Description

A Bluetooth streaming media playback control method and stop control method

technical field

The invention relates to the technical field of bluetooth network and bluetooth equipment, in particular to a method for controlling bluetooth streaming media.

Background technique

Bluetooth (bluetooth) technology is an open standard for wireless data and voice transmission. It mainly solves the problem of short-distance wireless connection and data transmission. The general applicable range is from 10 centimeters to 10 meters. As shown in Figure 1, the media player is connected via Bluetooth to control audio and video output devices to play music and movies, which is a widely used function in the application of Bluetooth technology. Media player Pause, play, fast forward, rewind, etc. The former belongs to streaming media transmission, and the latter belongs to the control of media playback, and each belongs to a different protocol stack in the Bluetooth protocol system. If you use a Bluetooth audio device to listen to music, you need to have an audio source device (such as a mobile phone), and transmit high-quality encoded stereo music to the audio output device (usually a stereo headset); at the same time, the Bluetooth mobile phone can be used as a portable player to receive control commands , the Bluetooth remote control is used as a controller for sending commands (such as a stereo headset that supports remote control), and the user uses the remote control to control the playback, stop, fast forward and backward operations of music on the mobile phone.

During the streaming media transmission process between the Bluetooth media player and the Bluetooth audio and video output device, the wireless streaming media connection needs to go through several state changes. The first is the idle state, in which there is only a link layer connection; configure streaming media transmission parameters and establish a link for streaming media transmission, that is, it enters the open state and establishes a streaming media connection; once streaming media transmission starts, it enters the streaming state. If the streaming media transmission stops, the streaming media connection is converted to an idle state or an open state. However, many Bluetooth devices on the market (such as Bluetooth headsets) will release the streaming media connection after the wireless connection enters the idle state for a few seconds. Subsequently, if there is streaming media to be transmitted, the streaming media connection must be re-established, including: the Bluetooth media player initializes the streaming port discovery process, obtains the streaming capability characteristics of the Bluetooth audio and video output device, configures the streaming media transmission parameters and establishes The link of the streaming media transmission enters the open state, and the connection of the streaming media is established; once the streaming media transmission starts, it enters the streaming transmission state. The process of re-establishing the connection takes a long time, and if both parties start to establish the connection at the same time, it will cause conflicts.

In some devices of the prior art, the Bluetooth media player judges whether to stop the streaming media transmission according to the number of triggers received, and the Bluetooth multimedia device judges that it will play if it receives the pause command again after receiving the pause command (equivalent to two triggers). ), such devices use streaming media signaling to stop and play streaming media transmission, which is incompatible among different devices, and the control purpose is not clear.

Contents of the invention

The technical problem to be solved by the present invention is to provide a bluetooth streaming media playback control method and a stop control method, which can avoid conflicts in the link signaling interaction process.

In order to solve the above problems, the present invention provides a bluetooth streaming media playback control method, comprising the following steps:

(a) The transmission of streaming media data between the Bluetooth media player and the Bluetooth multimedia device is suspended, and the user selects a playback operation;

(b) The Bluetooth media player sends a media stream start notification to the Bluetooth multimedia device on the streaming media transmission link, and the Bluetooth media player and the Bluetooth multimedia device start to transmit streaming media data.

Further, in the step (a), when the streaming media transmission link is in an idle state, after the user selects a playback operation, the Bluetooth media player initiates the establishment of an audio and video distribution connection with the Bluetooth multimedia device, and the streaming media transmission link into the open state.

Further, in the step (a), a control signaling link is set up between the bluetooth media player and the bluetooth multimedia device. The playback command is sent on the command link, and the bluetooth media player returns a response to the bluetooth multimedia device on the control signaling link.

In order to solve the above problems, the invention provides a kind of bluetooth streaming media stop control method, comprising the following steps:

(A) The streaming media transmission link is in the streaming state, and the user chooses to stop or pause;

(B) The Bluetooth media player initiates the release of the audio and video distribution connection with the Bluetooth multimedia device or suspends the streaming media transmission, and the streaming media data stops transmitting.

Further, in the step (A), a control signaling link is set up between the bluetooth media player and the bluetooth multimedia device, and after the user selects stop or pause on the bluetooth multimedia device, the bluetooth multimedia device sends the A stop or pause command is sent on the control signaling link, and the Bluetooth media player returns a response to the Bluetooth multimedia device on the control signaling link.

By adopting the method of the present invention, the preparation time for streaming media transmission can be shortened, conflicts in link signaling interaction process can be avoided, and user experience can be improved to a certain extent.

Description of drawings

Fig. 1 is the structural representation that bluetooth media player is connected with bluetooth multimedia equipment;

Fig. 2 is the flowchart of streaming media playback between the bluetooth media player and the bluetooth multimedia equipment in the present invention;

Fig. 3 is a flowchart of the stop of streaming media between the Bluetooth media player and the Bluetooth multimedia device in the present invention.

Detailed ways

The core idea of the present invention is: propose a kind of method of bluetooth media player and bluetooth multimedia device (bluetooth audio and video output equipment and bluetooth remote controller) link control, when the link of streaming media transmission has been released and needs to be reconnected , the Bluetooth multimedia device issues a playback command, and the Bluetooth media player initiates the link reconstruction process; uses control signaling instead of streaming media signaling to stop streaming media transmission; uses control signaling to pause and play to clearly control the current media transmission.

When playing music, the Bluetooth media player is most aware of the audio format to be played, can accurately judge its encoding method, determine the configuration parameters required for streaming media transmission, and initiate the streaming media by the Bluetooth media player instead of the Bluetooth multimedia device The transmission can start streaming media playback more quickly and with optimal encoding parameters, and prevent conflicts caused by both parties starting to establish connections at the same time. Using the pause and play commands of the control signaling link to control the current streaming media transmission, you don’t have to rely on the number of triggers received by the Bluetooth media player to determine whether to stop streaming media transmission, and the Bluetooth multimedia device does not need to judge whether to stop streaming media transmission after the pause. Pausing is playing, and it is clearer for Bluetooth devices to directly use the play command.

When we want to replay a song, we can use the Bluetooth remote control to command the media player to restart the transmission of streaming media through the control link.

In the flow chart of bluetooth streaming media playing shown in Fig. 2, bluetooth media player and bluetooth multimedia device have set up the relation of mutual trust, pass authentication, and set up streaming media transmission link and control link, this method It mainly includes the following steps:

Step 201, a control signaling link is established between the bluetooth media player and the bluetooth multimedia device, and the streaming media transmission link is in an idle state;

Step 202, the user selects to play on the bluetooth multimedia device through buttons or an interface;

Step 203, the bluetooth multimedia device sends a play command to the bluetooth media player on the control signaling link;

Step 204, the bluetooth media player returns a response to the bluetooth multimedia device on the control signaling link;

Step 205, the streaming media transmission link is in an idle state, and the bluetooth media player initiates the establishment of an audio and video distribution connection with the bluetooth multimedia device;

Step 206, the streaming media transmission link enters an open state;

The transmission of streaming media can be ready to start between the Bluetooth media player and the Bluetooth multimedia device;

Step 207, the Bluetooth media player sends a stream start notification to the Bluetooth multimedia device on the streaming media transmission link. The streaming media data starts to be transmitted between the Bluetooth media player and the Bluetooth multimedia device, and the streaming media transmission link enters a streaming transmission state.

In step 202 above, if the user chooses to play on the Bluetooth media player interface, steps 203 and 204 can be omitted.

In another embodiment, in step 201, if the streaming media transmission has been suspended between the Bluetooth media player and the Bluetooth multimedia device, but the streaming media transmission link is in an open state, then the media player restarts the process of streaming media transmission Steps 205 and 206 are not included.

In the flow chart of the Bluetooth streaming media stop shown in Figure 3, the Bluetooth media player and the Bluetooth multimedia device have established a mutual trust relationship, passed the authentication, and established a streaming media transmission link and a control link. The state of streaming media transmission, the method mainly includes the following steps:

Step 301, a control signaling link has been established between the Bluetooth media player and the Bluetooth multimedia device, and the streaming media transmission link is in a streaming state;

Step 302, the user selects to stop or pause through the button or interface on the Bluetooth multimedia device;

Step 303, the bluetooth multimedia device sends a stop or pause command to the bluetooth media player on the control signaling link;

Step 304, the bluetooth media player returns a response to the bluetooth multimedia device on the control signaling link;

Step 305, the bluetooth media player initiates the release of the audio and video distribution connection with the bluetooth multimedia device or suspends streaming media transmission;

Step 306, the streaming media transmission link enters an idle state or an open state. Streaming data transmission stops.

In step 302 above, if the user chooses to play on the Bluetooth media player interface, steps 303 and 304 can be omitted.

The method is applicable to but not limited to Bluetooth devices such as Bluetooth media players and Bluetooth multimedia devices.

The above method is proposed based on the specifications followed by Bluetooth technology, and considering the compatibility of various Bluetooth multimedia devices, as a method for controlling streaming media replay between Bluetooth media players and Bluetooth multimedia devices, the user experience is better improved .

The present invention can also have other multiple embodiments, without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and deformations according to the present invention, these corresponding changes and All deformations should belong to the protection scope of the appended claims of the present invention.

Claims (5)

1, a bluetooth streaming media playback control method, is characterized in that, comprises the following steps: (a) The transmission of streaming media data between the Bluetooth media player and the Bluetooth multimedia device is suspended, and the user selects a playback operation; (b) The Bluetooth media player sends a media stream start notification to the Bluetooth multimedia device on the streaming media transmission link, and the Bluetooth media player and the Bluetooth multimedia device start to transmit streaming media data. 2. The method of claim 1, wherein: In the described step (a), when the streaming media transmission link is in an idle state, after the user selects the playback operation, the Bluetooth media player initiates the establishment of an audio and video distribution connection with the Bluetooth multimedia device, and the streaming media transmission link enters an open state . 3. A method as claimed in claim 1 or 2, characterized in that, In the described step (a), a control signaling link is set up between the bluetooth media player and the bluetooth multimedia device, and after the user selects to play on the bluetooth multimedia device, the bluetooth multimedia device controls the signaling link Send a playback command on the Bluetooth media player, and the Bluetooth media player returns a response to the Bluetooth multimedia device on the control signaling link. 4, a bluetooth streaming media stop control method, is characterized in that, comprises the following steps: (A) The streaming media transmission link is in the streaming state, and the user chooses to stop or pause; (B) The Bluetooth media player initiates the release of the audio and video distribution connection with the Bluetooth multimedia device or suspends the streaming media transmission, and the streaming media data stops transmitting. 5. The method of claim 4, wherein: In the described step (A), a control signaling link is set up between the bluetooth media player and the bluetooth multimedia device, and after the user selects stop or pause on the bluetooth multimedia device, the bluetooth multimedia device sends the control signaling A stop or pause command is sent on the link, and the Bluetooth media player returns a response to the Bluetooth multimedia device on the control signaling link.

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