TWI618405B - Multimedia recording method and device thereof - Google Patents

Abstract

The invention provides a multimedia recording method suitable for a multimedia recording device with internal memory. The method comprises: recording video stream data, and continuously storing the image stream data in the first external storage device as a first file; determining that the available storage space of the first external storage device is less than a threshold value, and the multimedia recording device continuously recording the image Streaming the data, and storing the continuously recorded video stream data in the internal memory as a second file; detecting that the second external storage device is coupled to the multimedia recording device, the multimedia recording device continues to record the video stream data, and The image stream data recorded after connecting the second external storage device is stored in the second external storage device as a third file; and the second file of the internal memory is transferred to the second external storage device.

Description

Multimedia recording method and device thereof

The present invention relates to a multimedia recording method and apparatus thereof, and more particularly to a multimedia recording method and apparatus capable of continuously recording video stream data without interruption.

At present, in the video/tone process of the multimedia device on the market, if the memory card space is insufficient, the multimedia device will automatically stop recording/tone. If the user needs to continue recording/tone, he or she will have to replace another memory card with a remaining space for use. However, during the swapping process, the recording/sounding process of the multimedia device must be interrupted. This may result in the omission of important information. However, there is currently no effective solution for this problem in multimedia devices on the market.

The invention provides a multimedia recording method and a device thereof, which can continuously record video stream data when a memory card is replaced, so as to avoid the omission of important information.

The invention provides a multimedia recording method suitable for a multimedia recording device with internal memory. The multimedia recording method includes: recording the video stream data, and continuously storing the image stream data in the first external storage device as the first file; determining that the available storage space of the first external storage device is less than a threshold, and the multimedia recording device continuously recording The image stream data is stored in the internal memory as a second file; and the second external storage device is coupled to the multimedia recording device, and the multimedia recording device continues to record the video stream data, and The image stream data recorded after connecting the second external storage device is stored in the second external storage device as a third file; and the second file stored in the internal memory is transferred to the second external storage device.

In an embodiment of the present invention, the multimedia recording method further includes: combining the second file and the third file stored in the second external storage device into one file.

In an embodiment of the present invention, the multimedia recording method further includes: when determining that the available storage space of the first external storage device is less than a threshold, issuing an alert signal.

In an embodiment of the present invention, the multimedia recording method further includes: after detecting that the second external storage device is coupled to the multimedia recording device, determining whether the available storage space of the second external storage device is greater than a required storage of the second file. Space, if the available storage space of the second external storage device is smaller than the required storage space of the second file, a warning signal is issued.

In an embodiment of the invention, the first external storage device and the second external storage device are pluggably coupled to the multimedia recording device via at least one connection port.

In an embodiment of the invention, after the second file is transferred to the second external storage device, the second file of the internal memory is deleted.

The present invention provides a multimedia recording device including a video recorder, a processor, an internal memory, at least one port, and at least two external storage devices. The image recorder is used to record video stream data. The image recorder, the internal memory, and the at least one port are coupled to the processor. The processor is configured to receive video stream data. The at least two external storage devices are detachably coupled to the at least one connection port, and the at least two external storage devices include the first external storage device and the second external storage device. The processor continuously stores the image stream data in the first external storage device as the first file. The processor determines that the available storage space of the first external storage device is less than a threshold, and the image recorder continuously records the video stream data, and the processor stores the continuously recorded video stream data in the internal memory as the second file. When the processor detects that the second external storage device is coupled to the port, the image recorder continues to record the video stream data, and the processor stores the video stream data recorded after the second external storage device is connected to the second external storage device. The device is the third file. The processor transmits the second file stored in the internal memory to the second external storage device.

In an embodiment of the invention, the processor combines the second file and the third file stored in the second external storage device into one file.

In an embodiment of the invention, the multimedia recording device further includes an alert unit, and the alert unit is coupled to the processor. The processor determines that the available storage space of the first external storage device is less than a threshold, and the processor outputs the warning signal to the alert unit.

In an embodiment of the invention, the multimedia recording device further includes an alert unit, and the alert unit is coupled to the processor. After the second external storage device is coupled to the at least one port, the processor determines whether the available storage space of the second external storage device is greater than a required storage space of the second file. If the available storage space of the second external storage device is less than the required storage space of the second file, the processor sends an alert signal to the alert unit.

In an embodiment of the invention, after the second file is transferred to the second external storage device, the processor deletes the second file of the internal memory.

Based on the above, the multimedia recording method and device thereof of the present invention, when the multimedia recording device continuously records the video stream data, sends an alert signal to prompt the second when the available storage space of the first external storage device is less than the threshold value. The external storage device is coupled to the multimedia recording device. After the processor determines that the available storage space of the first external storage device is less than the threshold value and the second external storage device is coupled to the multimedia recording device, the continuously recorded video stream data is stored in the internal memory. And after the second external storage device is coupled to the multimedia recording device, the second file of the internal memory is transferred to the second external storage device, and the second external storage device is capable of storing the image recorded after the second external storage device is coupled Streaming data. In this way, the video stream data can be completely recorded even during the replacement of the first external storage device and the second external storage device.

The above described features and advantages of the invention will be apparent from the following description.

DETAILED DESCRIPTION OF THE INVENTION Reference will now be made in detail to the exemplary embodiments embodiments In addition, wherever possible, the same reference numerals in the drawings

1 is a block diagram of a multimedia recording device in accordance with an embodiment of the present invention. 1 , the multimedia recording apparatus 100 of the present invention includes a processor 101, an internal memory 102, at least one port 103, an image recorder 104, at least two external storage devices, a voice input device 105, and a warning unit 106. The internal memory 102, the port 103, the image recorder 104, the voice input device 105, and the police unit 106 are coupled to the processor 101. The processor 101 can be coupled to at least two external storage devices by at least one port 103, and the at least two external storage devices include the first external storage device 110 or the second external storage device 120. It should be noted that the number of at least one connection port 103 may be more than one. For example, if the number of the ports 103 is two or more, the first external storage device 110 and the second external storage device 120 are simultaneously pluggably coupled to the port 103. However, if there is only one connection port 103, only the first external storage device 110 or the second external storage device 120 can be selectively pluggably coupled to the port 103.

The image recorder 104 is configured to record an image stream data, and the image recorder 104 may include, for example, a charge coupled device (CCD), a complementary metal-oxide semiconductor (CMOS) device, or other components. The present invention is not limited thereto. The sound input device 105 can be any microphone having a radio function.

The processor 101 can be a central processing unit (CPU), or other programmable general purpose or special purpose microprocessor (Microprocessor), digital signal processor (DSP), programmable A controller, an Application Specific Integrated Circuit (ASIC) or other similar component or a combination of the above components. The processor 101 is configured to receive video stream data.

The internal memory 102 can be any type of fixed or removable random access memory (RAM), read-only memory (ROM), flash memory (flash memory) or the like. Element or combination of the above elements. The internal memory 102 is disposed on the main board of the multimedia recording apparatus 100 in a non-pluggable manner and can store or temporarily store the video stream data recorded by the image recorder 104.

The port 103 can be a connection terminal compatible with the Secure Digital (SD) interface standard. However, it must be understood that the present invention is not limited thereto, and the connection port 103 may also conform to the Parallel Advanced Technology Attachment (PATA) standard and the Institute of Electrical and Electronic Engineers (IEEE) 1394 standard. , Peripheral Component Interconnect Express (PCI Express) standard, Universal Serial Bus (USB) standard, Serial Advanced Technology Attachment (SATA) standard, Memory Stick (MS) Interface standard, Multi Media Card (MMC) interface standard, Compact Flash (CF) interface standard, Integrated Device Electronics (IDE) standard or other suitable standard connection terminals .

The alert unit 106 can be a warning light or a speaker that can output an alarm sound effect. The police unit 106 is coupled to the processor 101 and configured to receive the warning signal of the processor 101 to output a warning light or an alarm sound to prompt the user to insert a new external storage device.

The first external storage device 110 and the second external storage device 120 may be a secure digital interface card, a multimedia storage card, a memory stick, a flash memory card or an embedded multimedia card or the like.

Specifically, the multimedia recording device 100 of the present invention can record video stream data such as video and video stream data or audio image stream data through the image recorder 104 and the sound input device 105.

2 is a flow chart of a multimedia recording method in accordance with an embodiment of the present invention. Referring to FIG. 2, in step S201, the image recorder 104 records the video stream data, and the processor 101 continuously stores the video stream data in the first external storage device 110 as a first file. The first external storage device 110 is, for example, a memory card currently coupled to the port 103 of the multimedia recording device 100.

In step S203, the processor 101 determines whether the available storage space of the first external storage device 110 is less than a threshold.

When the processor 101 determines that the available storage space of the first external storage device 110 is greater than the threshold, the process returns to step S201 to continue to store the video stream data in the first external storage device 110. When the processor 101 determines that the available storage space of the first external storage device 110 is less than the threshold, in step S205, the image recorder 104 continuously records the video stream data, and the processor 101 stores the continuously recorded video stream data internally. The memory 102 is a second file.

For example, when the available storage space of the first external storage device 110 is less than the storage space (ie, the critical value) required for the video stream data of one minute, the processor 101 will continue to continuously record the video stream data. It is stored in the internal memory 102 of the multimedia recording apparatus 100. Therefore, when the available storage space of the first external storage device 110 coupled to the port 103 of the multimedia recording device 100 is less than the threshold, the multimedia recording device 100 can continuously and continuously record the image by using the internal memory 102. Streaming data to avoid situations where image stream data cannot be continuously recorded during insertion or exchange of external storage devices.

It should be noted that when the processor 101 determines that the available storage space of the first external storage device 110 is less than the threshold, the processor 101 may send an alert signal to the alert unit 106 to prompt the user to couple the second external storage device 120. Multimedia recording device 100. For example, the processor 101 can send a warning signal to the warning light to prompt the user to insert or replace the external storage device, or send a warning signal to the speaker to directly repeat a voice segment or special sound effect to prompt the user to insert or Replace the external storage device.

In step S207, the processor 101 detects whether the second external storage device 120 is coupled to the multimedia recording device 100.

If the processor 101 does not detect that the second external storage device 120 is coupled to the port 103 of the multimedia recording device 100, then the process returns to step S205 to continue storing the video stream data in the internal memory 102. If the processor 101 detects that the second external storage device 120 is coupled to the port 103 of the multimedia recording device 100, the image recorder 104 continues to record the video stream data in step S209, and the processor 101 is coupled to the second device. The image stream data recorded after the external storage device 120 is stored in the second external storage device 120 as a third file, and the processor 101 transmits the second file stored in the internal memory 102 to the second external storage device 120.

In this embodiment, the processor 101 can transfer the second file stored in the internal memory 102 to the second external storage device 120 in a cut-and-stick manner.

For example, the processor 101 can remove the second file from the internal memory at any point after detecting that the second external storage device 120 (eg, a new memory card) is coupled to the port 103 of the multimedia recording device 100. 102 is transferred to the second external storage device 120 in a cut-and-stick manner. It is to be noted that, after the second file is transferred from the internal memory 102 to the second external storage device 120, the processor 101 may also merge the second file and the third file stored in the second external storage device 120 into one. file.

It should be noted that, if the processor 101 has not detected that the second external storage device 120 is coupled to the port 103 of the multimedia recording device 100, the processor 101 may remain stored in the internal storage device 102. And the second file is transferred to the second external storage device at any time after detecting that the second external storage device is coupled to the port 103 of the multimedia recording device 100.

In an embodiment, when the processor 101 detects that the second external storage device 120 is coupled to the port 103 of the multimedia recording device 100, the processor 101 may further determine whether the available storage space of the second external storage device 120 is greater than The required storage space for the second file. If the available storage space of the second external storage device 120 is smaller than the required storage space of the second file, the processor 101 sends a warning signal to the warning unit 106 to prompt the user to replace the second external storage device 120. Similarly, after the external storage device is coupled to the port 103 of the multimedia recording device 100, the processor 101 can also determine whether the available storage space of the external storage device is greater than the required storage space of the second file.

It should be noted that when the user inserts or swaps the external storage device, when the multimedia recording device 100 has only one port 103, the user must first remove the first external storage device 110 from the port 103 before the second device can be used. The external storage device 120 is mounted or inserted into this port 103. Then, in step S207, the processor 101 detects that the second external storage device 120 is coupled to the port 103 of the multimedia recording device 100. Then, in step S209, the image recorder 104 continues to record the video stream data, and the processor 101 The image stream data recorded after the second external storage device 120 is coupled to the second external storage device 120 is stored as a third file, and the processor 101 transmits the second file stored in the internal memory 102 to the second external storage. Device 120.

However, when the multimedia recording device 100 has two or more ports 103, the user can directly install or insert the second external storage device 120 without removing the first external storage device 110 from the port 103. On the port 103, then in step S207, the processor 101 detects that the second external storage device 120 is coupled to the port 103 of the multimedia recording device 100. Then, in step S209, the image recorder 104 continues to record the image string. Flowing the data, the processor 101 stores the video stream data recorded after the second external storage device 120 is stored in the second external storage device 120 as a third file, and the processor 101 stores the second file stored in the internal memory 102. Transfer to the second external storage device 120.

3 is a flow chart of a multimedia recording method in accordance with another embodiment of the present invention.

Since steps S301, S303, S305, and S307 are the same as steps S201, S203, S205, and S207, respectively, the description thereof will not be repeated.

The difference between FIG. 3 and FIG. 2 is that, in step S307, when the processor 101 detects that the second external storage device 120 is coupled to the port 103 of the multimedia recording device 100, then in step S309, the image recorder The processor 101 continues to record the video stream data, and the processor 101 stores the video stream data recorded after the second external storage device 120 is stored in the second external storage device 120 as a third file, and the processor 101 stores the data in the internal memory. The second file of the body 102 is transferred to the second external storage device 120 in a duplicated manner.

After the second file is transferred to the second external storage device 120, the processor 101 deletes the second file of the internal memory 102 in step S311. In this embodiment, the processor 101 may delete the second file of the internal memory 102 immediately after the second file is copied to the second external storage device 120. However, the invention is not limited thereto. In another embodiment, the processor 101 may delete the second file stored in the internal memory 102 after the second file and the third file stored in the second external storage device 120 are merged into one file.

In summary, the multimedia recording method and device of the present invention will issue an alert signal to indicate that the second external storage device must be coupled to the multimedia recording device when the available storage space of the first external storage device is less than the threshold. After the processor determines that the available storage space of the first external storage device is less than the threshold value and the second external storage device is coupled to the multimedia recording device, the processor stores the continuously recorded video stream data in the internal memory to avoid Video stream data cannot be continuously recorded during the process of replacing the external storage device. After the second external storage device is coupled to the multimedia recording device, the second file of the internal memory is transferred to the second external storage device. Finally, the second file and the third file stored in the second external storage device may be combined into one file. In this way, the video stream data can be continuously recorded even during the replacement of the first external storage device and the second external storage device.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and any one of ordinary skill in the art can make some changes and refinements without departing from the spirit and scope of the present invention. The scope of the invention is defined by the scope of the appended claims.

100‧‧‧Multimedia recording device

101‧‧‧ processor

102‧‧‧ internal memory

103‧‧‧Connector

104‧‧‧Image Recorder

105‧‧‧Sound input device

106‧‧‧Warning unit

110‧‧‧First external storage device

120‧‧‧Second external storage device

Steps of S201, S203, S205, S207, S209‧‧‧ multimedia recording method

Steps of S301, S303, S305, S307, S309, S311‧‧‧ multimedia recording method

1 is a block diagram of a multimedia recording device in accordance with an embodiment of the present invention. 2 is a flow chart of a multimedia recording method in accordance with an embodiment of the present invention. 3 is a flow chart of a multimedia recording method in accordance with another embodiment of the present invention.

Claims (11)

A multimedia recording method is applicable to a multimedia recording device having an internal memory, the multimedia recording method comprising: recording an image stream data, and continuously storing the image stream data in a first external storage device Determining that the available storage space of the first external storage device is less than a threshold value, the multimedia recording device continuously records the video stream data, and stores the continuously recorded video stream data in the internal memory The second file is coupled to the second external storage device and coupled to the multimedia recording device, the multimedia recording device continues to record the image stream data, and the image stream recorded after the second external storage device is coupled The data is stored in the second external storage device as a third file; and the second file stored in the internal memory is transferred to the second external storage device. The multimedia recording method of claim 1, further comprising: combining the second file and the third file stored in the second external storage device into one file. The multimedia recording method of claim 1, further comprising: determining that the available storage space of the first external storage device is less than the threshold, and issuing a warning signal. The multimedia recording method of claim 1, further comprising: after detecting that the second external storage device is coupled to the multimedia recording device, determining whether the available storage space of the second external storage device is greater than the second The required storage space of the file is sent a warning signal if the available storage space of the second external storage device is smaller than the required storage space of the second file. The multimedia recording method of claim 1, wherein the first external storage device and the second external storage device are pluggably coupled to the multimedia recording device via at least one port. The multimedia recording method of claim 1, wherein the second file is deleted from the internal memory after the second file is transferred to the second external storage device. A multimedia recording device includes: an image recorder for recording an image stream data; a processor coupled to the image recorder, the processor for receiving the image stream data; and an internal memory coupled Connected to the processor; at least one port coupled to the processor; and at least two external storage devices that are detachably coupled to the at least one port, the at least two external storage devices including a first external storage device and a a second external storage device, wherein the processor continuously stores the image stream data in the first external storage device as a first file; the processor determines that the available storage space of the first external storage device is less than a threshold value The image recorder continuously records the image stream data, and the processor stores the continuously recorded image stream data in the internal memory as a second file; the processor detects the second external storage device coupling After the at least one port is connected, the image recorder continues to record the image stream data, and the processor is coupled to the second external storage device to record The video stream data stored in the second external storage device as a third file; and the processor will be stored in the internal memory of the second file is transmitted to the second external storage device. The multimedia recording device of claim 7, wherein the processor merges the second file stored in the second external storage device with the third file into a file. The multimedia recording device of claim 7, further comprising a warning unit coupled to the processor, wherein the processor determines that the available storage space of the first external storage device is less than the threshold, The processor outputs a warning signal to the warning unit. The multimedia recording device of claim 7, further comprising an alerting unit coupled to the processor, wherein the processor detects that the second external storage device is coupled to the at least one port The processor determines whether the available storage space of the second external storage device is greater than the required storage space of the second file, and if the available storage space of the second external storage device is less than the required storage space of the second file, Then the processor sends a warning signal to the warning unit. The multimedia recording device of claim 7, wherein after the second file is transferred to the second external storage device, the processor deletes the second file of the internal memory.