CN109640305B - Audio and video acquisition method, Bluetooth device and terminal device - Google Patents
Audio and video acquisition method, Bluetooth device and terminal device Download PDFInfo
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- CN109640305B CN109640305B CN201811610472.3A CN201811610472A CN109640305B CN 109640305 B CN109640305 B CN 109640305B CN 201811610472 A CN201811610472 A CN 201811610472A CN 109640305 B CN109640305 B CN 109640305B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/568—Storing data temporarily at an intermediate stage, e.g. caching
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/19—Connection re-establishment
Abstract
The embodiment of the invention discloses an audio and video acquisition method and Bluetooth equipment, which aim to improve the quality of acquired audio and video. The method can be applied to Bluetooth equipment and comprises the following steps: receiving an audio and video acquisition instruction of a terminal device, and acquiring audio and video data of a target object based on the audio and video acquisition instruction; in the process of collecting the audio and video data of the target object, the collected audio and video data is sent to the terminal equipment in real time; and if the connection with the terminal equipment is disconnected, the collected audio and video data is cached, and the cached audio and video data is sent to the terminal equipment after the connection with the terminal equipment is reestablished. The embodiment of the invention also discloses another audio and video acquisition method and terminal equipment.
Description
Technical Field
The embodiment of the invention relates to the technical field of terminal equipment, in particular to an audio and video acquisition method, Bluetooth equipment and terminal equipment.
Background
In recent years, with the continuous popularization of terminal devices such as mobile phones and tablets, the processing performance of the terminal devices is higher and higher, services processed on the terminal devices are not limited to traditional call receiving and making, instant messaging and the like, and some audio and video acquisition and processing services are also gradually popularized. In the related art, a microphone and a camera of a terminal device are usually used for acquiring audio and video (audio and/or video), and because the distance for acquiring the audio and video of the terminal device is limited, if the audio and video data of a moving target object is acquired, for example, when a user fixes a mobile phone by using a tripod and is used for acquiring the audio and video of a basket-shooting performance of the user, the effect of acquiring the audio and video is poor due to the limitation of the acquisition distance of the audio and video of the mobile phone.
Disclosure of Invention
The embodiment of the invention provides an audio and video acquisition method, Bluetooth equipment and terminal equipment, which are used for improving the quality of acquired audio and video.
In order to solve the above technical problem, the embodiment of the present invention is implemented as follows:
in a first aspect, an audio and video acquisition method is provided, which is applied to a bluetooth device, and includes:
receiving an audio and video acquisition instruction of a terminal device, and acquiring audio and video data of a target object based on the audio and video acquisition instruction;
in the process of collecting the audio and video data of the target object, the collected audio and video data is sent to the terminal equipment in real time;
and if the connection with the terminal equipment is disconnected, the collected audio and video data is cached, and the cached audio and video data is sent to the terminal equipment after the connection with the terminal equipment is reestablished.
In a second aspect, an audio and video acquisition method is provided, which is applied to a terminal device, and includes:
sending an audio and video acquisition instruction to a Bluetooth device so that the Bluetooth device acquires audio and video data of a target object;
in the process of collecting audio and video data of a target object by the Bluetooth equipment, receiving the audio and video data collected by the Bluetooth equipment in real time;
and if the connection is reestablished after the connection with the Bluetooth equipment is disconnected, receiving audio and video data cached by the Bluetooth equipment, wherein the cached audio and video data is acquired when the Bluetooth equipment is in the disconnected state.
In a third aspect, a bluetooth device is provided, comprising:
the Bluetooth communication module is used for receiving an audio and video acquisition instruction of the terminal equipment;
the audio and video acquisition module is used for acquiring audio and video data of a target object based on the audio and video acquisition instruction;
the Bluetooth communication module is used for transmitting the acquired audio and video data to the terminal equipment in real time in the process of acquiring the audio and video data of the target object;
and the storage module is used for caching the acquired audio and video data if the connection with the terminal equipment is disconnected, and sending the cached audio and video data to the terminal equipment after the connection with the terminal equipment is reestablished.
In a fourth aspect, a terminal device is provided, which includes:
the Bluetooth communication module is used for sending an audio and video acquisition instruction to Bluetooth equipment so as to enable the Bluetooth equipment to acquire audio and video data of a target object; and
in the process of collecting audio and video data of a target object by the Bluetooth equipment, receiving the audio and video data collected by the Bluetooth equipment in real time; and
and if the connection is reestablished after the connection with the Bluetooth equipment is disconnected, receiving audio and video data cached by the Bluetooth equipment, wherein the cached audio and video data is acquired when the Bluetooth equipment is in the disconnected state.
In a fifth aspect, there is provided a bluetooth device comprising a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the method according to the first aspect.
In a sixth aspect, a terminal device is provided, comprising a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the method according to the second aspect.
In a seventh aspect, a computer-readable storage medium is provided, on which a computer program is stored, which computer program, when being executed by a processor, realizes the steps of the method according to the first and second aspects.
In the embodiment of the invention, the Bluetooth device can acquire the audio and video data of the target object and send the audio and video data to the terminal device in real time, so that the high-quality audio and video data of the target object can be acquired within the effective distance of Bluetooth wireless transmission only by fixing the Bluetooth device on the target object, the problem of poor audio and video acquisition effect caused by the limitation of the audio and video acquisition distance of the terminal device is solved, and the quality of the acquired audio and video is improved. In addition, if the Bluetooth device is disconnected with the terminal device, the Bluetooth device can also buffer the acquired audio and video data, and send the buffered audio and video data to the terminal device after the Bluetooth device is re-connected with the terminal device, so that the problem of audio and video acquisition fragment loss caused by temporary disconnection of a Bluetooth link is avoided, and the quality of the acquired audio and video is further improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic flow chart of an audio/video acquisition method according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of an audio/video capture method according to another embodiment of the present invention;
fig. 3 is a schematic structural diagram of a bluetooth device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a hardware structure of a terminal device for implementing various embodiments of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, an embodiment of the present invention provides an audio and video acquisition method 100, which can be applied to a bluetooth device side, and includes the following steps:
s102: and receiving an audio and video acquisition instruction of the terminal equipment, and acquiring audio and video data of a target object based on the audio and video acquisition instruction.
The bluetooth device in the embodiments of this specification generally includes an audio/video acquisition module, a bluetooth communication module, a storage module, and the like. The audio and video acquisition module can acquire audio and video data of a target object, wherein the audio and video data can be audio data, video data and audio data and video data; the Bluetooth communication module can realize communication with a terminal and equipment and can also send acquired audio and video data to the terminal equipment; the storage module can store the acquired audio and video data.
The operating modes of the bluetooth device generally include sco (synchronous Connection ordered) and acl (synchronous Connection loss), wherein the former is mainly used for transmitting audio and video data, and the latter is mainly used for transmitting packet data.
In the embodiment of the invention, the SCO mode can be started after the Bluetooth equipment is started, so that the Bluetooth connection with the terminal equipment is realized. And if an audio and video acquisition instruction of the terminal equipment is received in the normal connection process, acquiring audio and video data of the target object based on the audio and video acquisition instruction.
The target object in this embodiment may specifically be an object whose position changes constantly, for example, a moving person, an animal, a car (including a racing car), or the like; but also stationary objects. In the practical application process, the Bluetooth device can be fixed on the target object, so that the audio and video data of the target object can be collected in a short distance in real time.
S104: in the process of collecting audio and video data of a target object, the collected audio and video data are sent to terminal equipment in real time;
and if the connection with the terminal equipment is disconnected, the acquired audio and video data is cached, and the cached audio and video data is sent to the terminal equipment after the connection is reestablished.
In the embodiment of the invention, in the process of acquiring the audio and video data of the target object, if the Bluetooth device and the terminal device are in a connection state, that is, the Bluetooth device and the terminal device can normally communicate with each other, the SCO link between the Bluetooth device and the terminal device is normal. The Bluetooth device and the terminal device are disconnected, namely normal communication cannot be carried out between the Bluetooth device and the terminal device, and the SCO link between the Bluetooth device and the terminal device is disconnected.
In the embodiment of the invention, if the Bluetooth and the equipment are in a connection state with the terminal equipment, the Bluetooth equipment can send the acquired audio and video data to the terminal equipment in real time through the SCO link by the Bluetooth communication module.
As for the above-mentioned "real-time" transmission to the terminal device, it can be understood that the collection of the audio/video data by the bluetooth device is a continuous and uninterrupted process, and the above-mentioned "transmission" action, for example, is executed once every 1 second; for another example, when the collected audio-video data reaches a certain amount, such as 100 bits, a sending action is executed.
If the Bluetooth device is far away from the terminal device or the Bluetooth device is disconnected from the terminal device due to reasons such as obstruction and the like, the Bluetooth device can also keep a state of acquiring audio and video data of a target object in real time and buffer the acquired audio and video data so as to send the buffered audio and video data to the terminal device after reestablishing connection with the terminal device.
According to the audio and video acquisition method provided by the embodiment of the invention, the Bluetooth device can acquire the audio and video data of the target object and send the audio and video data to the terminal device in real time, so that the high-quality audio and video data of the target object can be acquired within the effective distance of Bluetooth wireless transmission only by fixing the Bluetooth device on the target object, the problem of poor audio and video acquisition effect caused by the limitation of the audio and video acquisition distance of the terminal device is solved, and the quality of the acquired audio and video is improved.
In addition, in the embodiment of the invention, if the Bluetooth device is disconnected with the terminal device, the Bluetooth device can also buffer the acquired audio and video data, and send the buffered audio and video data to the terminal device after the Bluetooth device is reconnected with the terminal device, thereby avoiding the problem of audio and video acquisition fragment loss caused by temporary disconnection of a Bluetooth link and further improving the quality of the acquired audio and video.
The existing audio and video acquisition schemes are all realized by using a microphone and a camera on terminal equipment, for example, the microphone on a mobile phone is used for audio acquisition, and no related scheme for audio and video acquisition and transmission by using a Bluetooth device is provided. The embodiment of the invention utilizes the Bluetooth equipment to collect the audio and video data of the target object, the Bluetooth technology is a wireless transmission technology, and the Bluetooth equipment is fixed on the target object, so that the audio and video data of the target object can be clearly collected, the audio and video collection is more convenient, and the user experience is better.
As mentioned before, the transmission distance between the bluetooth device and the terminal device is also limited, e.g. 10 meters, beyond which the bluetooth may automatically disconnect. If the Bluetooth device is disconnected with the terminal device in the audio and video acquisition process, the Bluetooth device can continuously keep the audio and video acquisition state and cache the acquired audio and video data, which requires a self-contained memory of the Bluetooth device to cache a certain amount of audio and video data.
As for the buffer duration of the bluetooth device, the buffer duration may be default in the system or determined by user setting, and the following embodiment will be described by taking an example that the buffer duration extremum of the bluetooth device is 30 min. In addition, when the bluetooth device and the terminal device are reconnected after being disconnected, the terminal device may or may not have received the end input. The ending input is used for ending the audio and video acquisition for the target object, and specifically may be input by a user in a terminal device.
From the above description, the following four cases can be classified:
the first condition is as follows: the disconnection time is less than or equal to 30 min. The end input is not received by the terminal device before the connection is re-established.
Case two: the disconnection time is longer than 30 min. The end input is not received by the terminal device before the connection is re-established.
Case three: the disconnection time is less than or equal to 30 min. The terminal device receives an end input before reestablishing the connection.
Case four: the disconnection time is longer than 30 min. The terminal device receives an end input before reestablishing the connection.
Aiming at the four conditions, when the Bluetooth equipment is disconnected in the audio and video acquisition process, the terminal equipment can store an information file, record the address of the Bluetooth equipment, the disconnection time, the file name of the acquired audio and video and the like, and the combination of the audio and video data in different time periods is convenient when the Bluetooth equipment is connected again.
For the first case: and the time length of disconnection is less than or equal to the cache time length extreme value, the terminal equipment does not receive ending input before connection is reestablished, and the audio and video data cached from the disconnection time to the connection reestablishment time are sent to the terminal equipment. After the connection between the Bluetooth device and the terminal device is reestablished, the Bluetooth device can also acquire the audio and video data of the target object and send the audio and video data to the terminal device in real time until the terminal device receives the ending input.
For the second case: and the disconnection duration is longer than the cache duration extreme value, and before the connection is reestablished, the terminal equipment does not receive the ending input, and the audio and video data cached in the cache duration extreme value are sent to the terminal equipment. After the connection between the Bluetooth device and the terminal device is reestablished, the Bluetooth device can also acquire the audio and video data of the target object and send the audio and video data to the terminal device in real time until the terminal device receives the ending input.
In the embodiment, the bluetooth device only caches 30min of audio and video data, the terminal device does not receive the ending input all the time, the bluetooth device is reconnected with the terminal device after 30min, if the bluetooth device is reconnected after 35min, the terminal device can only acquire the audio and video data of the previous 30min, the audio and video data of the next 5min are missing, and the acquired audio and video data are missing. In order to solve the technical problem, the terminal equipment can synchronously acquire the audio and video data of the target object when the Bluetooth equipment acquires the audio and video data of the target object; and mixing the collected audio data and the received audio data.
Specifically, the terminal and the device can start the operation of synchronously acquiring the audio and video data of the target object at the moment of disconnecting with the Bluetooth device; or starting the operation of synchronously acquiring the audio and video data of the target object at the moment when the Bluetooth equipment starts to acquire the audio and video data of the target object.
For the case three above: and the disconnection duration is less than or equal to the cache duration extreme value, and the terminal equipment receives the ending input before reestablishing the connection and sends target audio and video data in the cached audio and video data to the terminal equipment.
The target audio and video data is determined based on the moment of disconnection and the moment of receiving the input ending by the terminal equipment, specifically, after the connection is reestablished, the terminal equipment can send a related instruction to the Bluetooth equipment so that the Bluetooth equipment can determine the moment of receiving the input ending by the terminal equipment, and then the terminal equipment only sends the target audio and video data in the cached audio and video data to the terminal equipment without sending all cached audio and video data, and further resource consumption is reduced.
In a specific embodiment, if the audio/video acquisition is reconnected 20min after starting, the terminal device receives the end input 10min after disconnection. In this embodiment, after the terminal device and the bluetooth device are reconnected, the bluetooth device may stop collecting the audio and video data; secondly, the Bluetooth device only needs to transmit the audio and video data of the first 10min, and the audio and video data of the later 10min can be discarded.
For the case four above: and the disconnection duration is longer than the cache duration extreme value, the terminal equipment receives the ending input before reestablishing the connection, and the audio and video data cached in the cache duration extreme value are sent to the terminal equipment.
In this embodiment, the terminal device may stop within 30min or stop after 30min because the time when the terminal device receives the end input is not determined. If the ending input is received within 30min, for example, the ending input is received after 25min is collected, the audio and video data of the next 5min which is added by the Bluetooth device is lost, if the ending input is received after 30min, for example, the Bluetooth device stops after 35min, the Bluetooth device only needs to send the 30min data, the insufficient audio and video data is not processed, but the missing segment of the next 5min exists, and therefore the bad effect is caused.
In order to avoid that the cache data of the Bluetooth equipment is not enough to supplement audio and video fragments missing from the terminal equipment, two remedial modes can be adopted, namely, the terminal equipment and the microphone and/or the camera are automatically opened when the Bluetooth is disconnected to synchronously acquire the audio and video data of the target object. And secondly, starting the terminal equipment and the microphone and/or the camera to synchronously acquire the audio and video data of the target object from the beginning of the recording and video, mixing the acquired audio data and the received audio data, and selecting and reserving the video data with better quality from the acquired video data and the received video data.
The audio and video acquisition method on the bluetooth device side according to the embodiment of the present invention is described in detail above with reference to fig. 1. An audio-video capture method 200 according to another embodiment of the invention will be described in detail below with reference to fig. 2. It is to be understood that the interaction of the terminal device and the bluetooth device described from the terminal device side is the same as that described on the terminal device side in the method shown in fig. 1, and the related description is appropriately omitted to avoid redundancy.
As shown in fig. 2, this embodiment 200 includes the steps of:
s202: sending an audio and video acquisition instruction to the Bluetooth equipment so that the Bluetooth equipment acquires audio and video data of a target object;
s204: in the process of collecting audio and video data of a target object by a Bluetooth device, receiving the audio and video data collected by the Bluetooth device in real time;
and if the connection is reestablished after the connection with the Bluetooth equipment is disconnected, receiving audio and video data cached by the Bluetooth equipment, wherein the cached audio and video data is acquired when the Bluetooth equipment is in the disconnected state.
According to the audio and video acquisition method provided by the embodiment of the invention, the Bluetooth device can acquire the audio and video data of the target object and send the audio and video data to the terminal device in real time, so that the high-quality audio and video data of the target object can be acquired within the effective distance of Bluetooth wireless transmission only by fixing the Bluetooth device on the target object, the problem of poor audio and video acquisition effect caused by the limitation of the audio and video acquisition distance of the terminal device is solved, and the quality of the acquired audio and video is improved.
In addition, in the embodiment of the invention, if the Bluetooth device is disconnected with the terminal device, the Bluetooth device can also buffer the acquired audio and video data, and send the buffered audio and video data to the terminal device after the Bluetooth device is reconnected with the terminal device, thereby avoiding the problem of audio and video acquisition fragment loss caused by temporary disconnection of a Bluetooth link and further improving the quality of the acquired audio and video.
Optionally, as an embodiment, the receiving the audio and video data buffered by the bluetooth device includes:
receiving target audio and video data in the audio and video data cached by the Bluetooth equipment;
the target audio and video data is determined based on the moment of disconnection and the moment of receiving an end input, wherein the end input is used for ending audio and video acquisition aiming at the target object.
Optionally, as an embodiment, the bluetooth device presets a buffer duration extremum, and the receiving target audio and video data in the audio and video data buffered by the bluetooth device includes:
and if the disconnection duration is less than or equal to the cache duration extreme value, receiving the ending input before reestablishing the connection, and receiving target audio and video data in the audio and video data cached by the Bluetooth equipment.
Optionally, as an embodiment, the bluetooth device presets a buffer duration extremum, and the receiving the audio and video data buffered by the bluetooth device includes:
if the disconnection duration is less than or equal to the cache duration extreme value and no ending input is received when the connection is reestablished, receiving audio and video data cached by the Bluetooth device from the disconnection time to the connection reestablishment time; or
If the disconnection duration is longer than the cache duration extreme value and the connection is reestablished without receiving the ending input, receiving audio and video data cached in the cache duration extreme value of the Bluetooth equipment; or
If the disconnection duration is longer than the cache duration extreme value, and the terminal device receives the ending input before reestablishing the connection, receiving the audio and video data cached in the cache duration extreme value of the Bluetooth device;
wherein the end input is used to end audio-video capture for the target object.
Optionally, as an embodiment, the above several embodiments further include the following steps:
when the Bluetooth equipment collects audio and video data of a target object, synchronously collecting the audio and video data of the target object;
and mixing the collected audio data and the received audio data.
Optionally, as an embodiment, the synchronously acquiring the audio-video data of the target object includes:
starting the operation of synchronously acquiring the audio and video data of the target object at the moment of disconnecting the Bluetooth device; or
And starting the operation of synchronously acquiring the audio and video data of the target object at the moment when the Bluetooth equipment starts to acquire the audio and video data of the target object.
The audio and video capture method according to the embodiment of the present invention is described in detail above with reference to fig. 1 to 2. A bluetooth device according to an embodiment of the present invention will be described in detail with reference to fig. 3, and fig. 3 is a schematic structural diagram of a bluetooth device 300 according to an embodiment of the present invention. As shown in fig. 3, the bluetooth device 300 includes:
the bluetooth communication module 302 may be configured to receive an audio/video acquisition instruction of the terminal device;
the audio/video acquisition module 304 may be configured to acquire audio/video data of a target object based on the audio/video acquisition instruction;
the bluetooth communication module 302 may also be configured to send the acquired audio/video data to the terminal device in real time in the process of acquiring the audio/video data of the target object;
the storage module 306 may be configured to cache the acquired audio and video data if the connection with the terminal device is disconnected, and after the connection with the terminal device is reestablished, the bluetooth communication module 302 sends the cached audio and video data to the terminal device.
The Bluetooth device provided by the embodiment of the invention can acquire the audio and video data of the target object and send the audio and video data to the terminal device in real time, so that the high-quality audio and video data of the target object can be acquired within the effective distance of Bluetooth wireless transmission only by fixing the Bluetooth device on the target object, the problem of poor audio and video acquisition effect caused by the limitation of the audio and video acquisition distance of the terminal device is solved, and the quality of the acquired audio and video is improved.
In addition, in the embodiment of the invention, if the Bluetooth device is disconnected with the terminal device, the Bluetooth device can also buffer the acquired audio and video data, and send the buffered audio and video data to the terminal device after the Bluetooth device is reconnected with the terminal device, thereby avoiding the problem of audio and video acquisition fragment loss caused by temporary disconnection of a Bluetooth link and further improving the quality of the acquired audio and video.
Optionally, as an embodiment, the sending, by the bluetooth communication module 302, the buffered audio and video data to the terminal device includes:
sending target audio and video data in the cached audio and video data to the terminal equipment;
the target audio and video data are determined based on the moment of disconnection and the moment of receiving ending input by the terminal equipment, wherein the ending input is used for ending audio and video acquisition aiming at the target object.
Optionally, as an embodiment, the bluetooth device 300 preset a buffer duration extremum, and the sending, by the bluetooth communication module 302, the target audio and video data in the buffered audio and video data to the terminal device includes:
and if the disconnection time length is less than or equal to the cache time length extreme value and the terminal equipment receives the ending input before the connection is reestablished, sending target audio and video data in the cached audio and video data to the terminal equipment.
Optionally, as an embodiment, the bluetooth device presets a buffer duration extremum, and the sending, by the bluetooth communication module 302, the buffered audio and video data to the terminal device includes:
if the disconnection time length is less than or equal to the cache time length extreme value and the terminal equipment does not receive the ending input when the connection is reestablished, sending the audio and video data cached from the disconnection time to the connection reestablishment time to the terminal equipment; or
If the disconnection duration is longer than the cache duration extreme value and the terminal equipment does not receive the ending input when the connection is reestablished, sending the audio and video data cached in the cache duration extreme value to the terminal equipment; or
If the disconnection duration is longer than the cache duration extreme value and the terminal device receives the ending input before reestablishing the connection, sending the audio and video data cached in the cache duration extreme value to the terminal device;
wherein the end input is used to end audio-video capture for the target object.
The bluetooth device 300 according to the embodiment of the present invention may refer to the process corresponding to the audio and video acquisition method 100 according to the embodiment of the present invention, and each unit/module and the other operations and/or functions in the bluetooth device 300 are respectively for implementing the corresponding process in the audio and video acquisition method 100, and are not described herein again for brevity.
Fig. 4 is a schematic structural diagram of a terminal device 400 according to an embodiment of the present invention. As shown in fig. 4, the terminal device 400 includes:
the bluetooth communication module 402 may be configured to send an audio/video acquisition instruction to a bluetooth device, so that the bluetooth device acquires audio/video data of a target object; and
in the process of collecting audio and video data of a target object by the Bluetooth equipment, receiving the audio and video data collected by the Bluetooth equipment in real time; and
and if the connection is reestablished after the connection with the Bluetooth equipment is disconnected, receiving audio and video data cached by the Bluetooth equipment, wherein the cached audio and video data is acquired when the Bluetooth equipment is in the disconnected state.
In the embodiment of the invention, the Bluetooth device can acquire the audio and video data of the target object and send the audio and video data to the terminal device in real time, so that the high-quality audio and video data of the target object can be acquired only by fixing the Bluetooth device on the target object within the effective distance of Bluetooth wireless transmission, the problem of poor audio and video acquisition effect caused by the limitation of the audio and video acquisition distance of the terminal device is solved, and the quality of the acquired audio and video is improved.
In addition, in the embodiment of the invention, if the Bluetooth device is disconnected with the terminal device, the Bluetooth device can also buffer the acquired audio and video data, and send the buffered audio and video data to the terminal device after the Bluetooth device is reconnected with the terminal device, thereby avoiding the problem of audio and video acquisition fragment loss caused by temporary disconnection of a Bluetooth link and further improving the quality of the acquired audio and video.
Optionally, as an embodiment, the receiving, by the bluetooth communication module 402, the audio and video data buffered by the bluetooth device includes:
the bluetooth communication module 402 receives target audio and video data in the audio and video data cached by the bluetooth device;
the target audio and video data is determined based on the moment of disconnection and the moment of receiving an end input, wherein the end input is used for ending audio and video acquisition aiming at the target object.
Optionally, as an embodiment, the bluetooth device presets a buffer duration extremum, and the receiving, by the bluetooth communication module 402, the target audio and video data in the audio and video data buffered by the bluetooth device includes:
and if the disconnection duration is less than or equal to the cache duration extreme value, receiving the ending input before reestablishing the connection, and receiving target audio and video data in the audio and video data cached by the Bluetooth equipment.
Optionally, as an embodiment, the bluetooth device presets a buffer duration extremum, and the receiving, by the bluetooth communication module 402, the audio and video data buffered by the bluetooth device includes:
if the disconnection duration is less than or equal to the cache duration extreme value and no ending input is received when the connection is reestablished, receiving audio and video data cached by the Bluetooth device from the disconnection time to the connection reestablishment time; or
If the disconnection duration is longer than the cache duration extreme value and the connection is reestablished without receiving the ending input, receiving audio and video data cached in the cache duration extreme value of the Bluetooth equipment; or
If the disconnection duration is longer than the cache duration extreme value, and the terminal device receives the ending input before reestablishing the connection, receiving the audio and video data cached in the cache duration extreme value of the Bluetooth device;
wherein the end input is used to end audio-video capture for the target object.
Optionally, as an embodiment, the terminal device 400 further includes:
the acquisition processing module 404 may be configured to acquire audio and video data of a target object synchronously when the bluetooth device acquires the audio and video data of the target object;
and mixing the collected audio data and the received audio data.
Optionally, as an embodiment, the synchronously acquiring, by the acquisition processing module 404, the audio-video data of the target object includes:
starting the operation of synchronously acquiring the audio and video data of the target object at the moment of disconnecting the Bluetooth device; or
And starting the operation of synchronously acquiring the audio and video data of the target object at the moment when the Bluetooth equipment starts to acquire the audio and video data of the target object.
Fig. 5 is a schematic diagram of a hardware structure of a terminal device for implementing various embodiments of the present invention, where the terminal device 500 includes, but is not limited to: a radio frequency unit 501, a network module 502, an audio output unit 503, an input unit 504, a sensor 505, a display unit 506, a user input unit 507, an interface unit 508, a memory 509, a processor 510, and a power supply 511. Those skilled in the art will appreciate that the terminal device configuration shown in fig. 5 does not constitute a limitation of the terminal device, and that the terminal device may include more or fewer components than shown, or combine certain components, or a different arrangement of components. In the embodiment of the present invention, the terminal device includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.
The processor 510 is configured to send an audio/video acquisition instruction to a bluetooth device, so that the bluetooth device acquires audio/video data of a target object;
in the process of collecting audio and video data of a target object by the Bluetooth equipment, receiving the audio and video data collected by the Bluetooth equipment in real time;
and if the connection is reestablished after the connection with the Bluetooth equipment is disconnected, receiving audio and video data cached by the Bluetooth equipment, wherein the cached audio and video data is acquired when the Bluetooth equipment is in the disconnected state.
The Bluetooth device can acquire the audio and video data of the target object and send the audio and video data to the terminal device in real time, so that the high-quality audio and video data of the target object can be acquired only by fixing the Bluetooth device on the target object within an effective distance of Bluetooth wireless transmission, the problem of poor audio and video acquisition effect caused by limitation of the audio and video acquisition distance of the terminal device is solved, and the quality of the acquired audio and video is improved.
In addition, in the embodiment of the invention, if the Bluetooth device is disconnected with the terminal device, the Bluetooth device can also buffer the acquired audio and video data, and send the buffered audio and video data to the terminal device after the Bluetooth device is reconnected with the terminal device, thereby avoiding the problem of audio and video acquisition fragment loss caused by temporary disconnection of a Bluetooth link and further improving the quality of the acquired audio and video.
It should be understood that, in the embodiment of the present invention, the radio frequency unit 501 may be used for receiving and sending signals during a message sending and receiving process or a call process, and specifically, receives downlink data from a base station and then processes the received downlink data to the processor 510; in addition, the uplink data is transmitted to the base station. In general, radio frequency unit 501 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 501 can also communicate with a network and other devices through a wireless communication system.
The terminal device provides the user with wireless broadband internet access through the network module 502, such as helping the user send and receive e-mails, browse webpages, access streaming media, and the like.
The audio output unit 503 may convert audio data received by the radio frequency unit 501 or the network module 502 or stored in the memory 509 into an audio signal and output as sound. Also, the audio output unit 503 may also provide audio output related to a specific function performed by the terminal apparatus 500 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 503 includes a speaker, a buzzer, a receiver, and the like.
The input unit 504 is used to receive an audio or video signal. The input Unit 504 may include a Graphics Processing Unit (GPU) 5041 and a microphone 5042, and the Graphics processor 5041 processes image data of a still picture or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 506. The image frames processed by the graphic processor 5041 may be stored in the memory 509 (or other storage medium) or transmitted via the radio frequency unit 501 or the network module 502. The microphone 5042 may receive sounds and may be capable of processing such sounds into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 501 in case of the phone call mode.
The terminal device 500 further comprises at least one sensor 505, such as light sensors, motion sensors and other sensors. Specifically, the light sensor includes an ambient light sensor that adjusts the brightness of the display panel 5061 according to the brightness of ambient light, and a proximity sensor that turns off the display panel 5061 and/or a backlight when the terminal device 500 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal device posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensors 505 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.
The display unit 506 is used to display information input by the user or information provided to the user. The Display unit 506 may include a Display panel 5061, and the Display panel 5061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.
The user input unit 507 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the terminal device. Specifically, the user input unit 507 includes a touch panel 5071 and other input devices 5072. Touch panel 5071, also referred to as a touch screen, may collect touch operations by a user on or near it (e.g., operations by a user on or near touch panel 5071 using a finger, stylus, or any suitable object or attachment). The touch panel 5071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 510, and receives and executes commands sent by the processor 510. In addition, the touch panel 5071 may be implemented in various types such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 5071, the user input unit 507 may include other input devices 5072. In particular, other input devices 5072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.
Further, the touch panel 5071 may be overlaid on the display panel 5061, and when the touch panel 5071 detects a touch operation thereon or nearby, the touch operation is transmitted to the processor 510 to determine the type of the touch event, and then the processor 510 provides a corresponding visual output on the display panel 5061 according to the type of the touch event. Although in fig. 5, the touch panel 5071 and the display 5061 are two independent components to implement the input and output functions of the terminal device, in some embodiments, the touch panel 5071 and the display 5061 may be integrated to implement the input and output functions of the terminal device, and is not limited herein.
The interface unit 508 is an interface for connecting an external device to the terminal apparatus 500. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 508 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the terminal apparatus 500 or may be used to transmit data between the terminal apparatus 500 and the external device.
The memory 509 may be used to store software programs as well as various data. The memory 509 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 509 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device.
The processor 510 is a control center of the terminal device, connects various parts of the entire terminal device by using various interfaces and lines, and performs various functions of the terminal device and processes data by running or executing software programs and/or modules stored in the memory 509 and calling data stored in the memory 509, thereby performing overall monitoring of the terminal device. Processor 510 may include one or more processing units; preferably, the processor 510 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 510.
The terminal device 500 may further include a power supply 511 (e.g., a battery) for supplying power to various components, and preferably, the power supply 511 may be logically connected to the processor 510 through a power management system, so as to implement functions of managing charging, discharging, and power consumption through the power management system.
In addition, the terminal device 500 includes some functional modules that are not shown, and are not described in detail herein.
Preferably, an embodiment of the present invention further provides a terminal device, which includes a processor 510, a memory 509, and a computer program that is stored in the memory 509 and can be run on the processor 510, and when being executed by the processor 510, the computer program implements each process of the above-mentioned embodiments of the audio and video acquisition methods 100 and 200, and can achieve the same technical effect, and in order to avoid repetition, details are not described here again.
An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements the processes of the embodiments 100 and 200 of the audio and video acquisition method, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (13)
1. An audio and video acquisition method is applied to Bluetooth equipment and comprises the following steps:
receiving an audio and video acquisition instruction of a terminal device, and acquiring audio and video data of a target object based on the audio and video acquisition instruction;
in the process of collecting the audio and video data of the target object, the collected audio and video data are sent to the terminal equipment in real time;
if the terminal equipment is disconnected, the collected audio and video data are cached, and the cached audio and video data are sent to the terminal equipment after the connection with the terminal equipment is reestablished,
the method comprises the following steps that a buffer duration extreme value is preset in the Bluetooth device, and the sending of the buffered audio and video data to the terminal device comprises the following steps: and sending target cache audio and video data to the terminal equipment based on the cache duration extreme value, the moment of disconnection and the moment of receiving input ending by the terminal equipment before reestablishment of connection, wherein the input ending is used for ending audio and video acquisition aiming at the target object.
2. The method of claim 1, wherein the sending target buffered audio/video data to the terminal device based on the buffer duration extremum, the moment of disconnection, and the moment of receiving an end input by the terminal device before reestablishing the connection comprises:
determining the target cache audio and video data based on the moment of disconnection and the moment of receiving ending input by the terminal equipment;
and if the disconnection time length is less than or equal to the cache time length extreme value and the terminal equipment receives the ending input before the connection is reestablished, sending the target cache audio and video data to the terminal equipment.
3. The method of claim 1, wherein the sending target buffered audio/video data to the terminal device based on the buffer duration extremum, the moment of disconnection, and the moment of receiving an end input by the terminal device before reestablishing the connection comprises:
if the disconnection time length is less than or equal to the cache time length extreme value and the terminal equipment does not receive the ending input when the connection is reestablished, determining the audio and video data cached from the disconnection time to the connection reestablishment time as the target cache audio and video data and sending the target cache audio and video data to the terminal equipment; or
If the disconnection duration is longer than the cache duration extreme value and the terminal equipment does not receive the ending input when the connection is reestablished, determining the audio and video data cached in the cache duration extreme value as the target cache audio and video data and sending the target cache audio and video data to the terminal equipment; or
And if the disconnection time length is longer than the cache time length extreme value and the terminal equipment receives the ending input before reestablishing the connection, determining the audio and video data cached in the cache time length extreme value as the target cache audio and video data and sending the target cache audio and video data to the terminal equipment.
4. An audio and video acquisition method is characterized by being applied to terminal equipment and comprising the following steps:
sending an audio and video acquisition instruction to a Bluetooth device so that the Bluetooth device acquires audio and video data of a target object;
in the process of collecting audio and video data of a target object by the Bluetooth equipment, receiving the audio and video data collected by the Bluetooth equipment in real time;
if the connection is reestablished after the disconnection with the Bluetooth equipment, receiving the audio and video data cached by the Bluetooth equipment, wherein the cached audio and video data is acquired when the Bluetooth equipment is in a disconnection state, a caching duration extremum is preset in the Bluetooth equipment, and the receiving of the audio and video data cached by the Bluetooth equipment comprises the following steps: and receiving target cache audio and video data of the Bluetooth equipment based on the cache duration extreme value, the moment of disconnection and the moment of receiving an input ending before reestablishment of connection, wherein the input ending is used for ending audio and video acquisition aiming at the target object.
5. The method of claim 4, wherein receiving the target buffered audio-video data for the Bluetooth device based on the buffered duration limit, the time of disconnection, and the time of receiving an end input before reestablishing the connection comprises:
and if the disconnection duration is less than or equal to the cache duration extreme value, receiving the ending input before reestablishing the connection, and receiving the target cache audio and video data of the Bluetooth device, wherein the target cache audio and video data is determined based on the disconnection time and the time when the terminal device receives the ending input.
6. The method of claim 4, wherein receiving the target buffered audio-video data for the Bluetooth device based on the buffered duration limit, the time of disconnection, and the time of receiving an end input before reestablishing the connection comprises:
if the disconnection duration is less than or equal to the cache duration extreme value and no ending input is received when the connection is reestablished, receiving the target cache audio and video data cached by the Bluetooth device from the disconnection moment to the connection reestablishment moment; or
If the disconnection duration is longer than the cache duration extreme value and the connection is reestablished without receiving the ending input, receiving the target cache audio and video data cached in the cache duration extreme value of the Bluetooth equipment; or
And if the disconnection duration is longer than the cache duration extreme value, and the terminal equipment receives the ending input before reestablishing the connection, and receives the target cache audio and video data cached in the cache duration extreme value of the Bluetooth equipment.
7. The method of any of claims 4 to 6, further comprising:
when the Bluetooth equipment collects audio and video data of a target object, synchronously collecting the audio and video data of the target object;
and mixing the collected audio data and the received audio data.
8. The method of claim 7, wherein said synchronously acquiring audio-visual data of the target object comprises:
starting the operation of synchronously acquiring the audio and video data of the target object at the moment of disconnecting the Bluetooth device; or
And starting the operation of synchronously acquiring the audio and video data of the target object at the moment when the Bluetooth equipment starts to acquire the audio and video data of the target object.
9. A bluetooth device, comprising:
the Bluetooth communication module is used for receiving an audio and video acquisition instruction of the terminal equipment;
the audio and video acquisition module is used for acquiring audio and video data of a target object based on the audio and video acquisition instruction;
the Bluetooth communication module is used for transmitting the acquired audio and video data to the terminal equipment in real time in the process of acquiring the audio and video data of the target object;
the storage module is used for caching the acquired audio and video data if the connection with the terminal equipment is disconnected, and sending the cached audio and video data to the terminal equipment after the connection with the terminal equipment is reestablished,
wherein, the bluetooth equipment presets the buffer duration extremum, and the storage module is used for: and sending target cache audio and video data to the terminal equipment based on the cache duration extreme value, the moment of disconnection and the moment of receiving input ending by the terminal equipment before reestablishment of connection, wherein the input ending is used for ending audio and video acquisition aiming at the target object.
10. A terminal device, comprising:
the Bluetooth communication module is used for sending an audio and video acquisition instruction to Bluetooth equipment so as to enable the Bluetooth equipment to acquire audio and video data of a target object; and
in the process of collecting audio and video data of a target object by the Bluetooth equipment, receiving the audio and video data collected by the Bluetooth equipment in real time; and
if the connection is reestablished after the connection with the Bluetooth equipment is disconnected, receiving audio and video data cached by the Bluetooth equipment, wherein the cached audio and video data is acquired when the Bluetooth equipment is in the disconnected state,
the method comprises the following steps that a buffer duration extreme value is preset in the Bluetooth device, and receiving audio and video data buffered by the Bluetooth device comprises the following steps: and receiving target cache audio and video data of the Bluetooth equipment based on the cache duration extreme value, the moment of disconnection and the moment of receiving an input ending before reestablishment of connection, wherein the input ending is used for ending audio and video acquisition aiming at the target object.
11. A bluetooth device, comprising: memory, processor and computer program stored on the memory and executable on the processor, which computer program, when executed by the processor, carries out the steps of the method according to any one of claims 1 to 3.
12. A terminal device, comprising: memory, processor and computer program stored on the memory and executable on the processor, which computer program, when executed by the processor, carries out the steps of the method according to any one of claims 4 to 8.
13. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 8.
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