CN109819306B

CN109819306B - Media file clipping method, electronic device and server

Info

Publication number: CN109819306B
Application number: CN201811653372.9A
Authority: CN
Inventors: 韩卫正
Original assignee: Petal Cloud Technology Co Ltd
Current assignee: Huawei Device Co Ltd; Petal Cloud Technology Co Ltd
Priority date: 2018-12-29
Filing date: 2018-12-29
Publication date: 2022-11-04
Anticipated expiration: 2038-12-29
Also published as: CN109819306A; WO2020134892A1

Abstract

The embodiment of the invention discloses a method for cutting a media file, which comprises the following steps: the electronic equipment acquires a media file identifier and a cutting parameter and sends a cutting request to a server according to the cutting parameter; the electronic equipment receives cutting result information returned by the server; and the electronic equipment generates a cutting file according to the cutting result information and the media file. Compared with the prior art, the method and the device for the terminal side cutting can achieve the effects of low power consumption and short cutting time of the terminal side cutting.

Description

Method for cutting media file, electronic equipment and server

Technical Field

The present invention relates to the field of media, and in particular, to a method, an electronic device, and a server for clipping a media file.

Background

Currently, users often use electronic devices to play media files. When the user hears a favorite media file and needs to process a segment of the favorite media file, the user needs to process the media file with other tools for processing the media file. For example, when a user watches video content or listens to audio content, the user needs to clip part of the video content or the audio content. For example, a highlight in a movie is obtained for sharing, or a climax part in a song is obtained to be set as a ring tone, etc.

Streaming media is media that is broadcast while being transmitted, and is also a kind of multimedia. By broadcast while streaming is meant that the media provider is transmitting the media over the network, the user is constantly receiving and viewing or listening to the transmitted media. The popularity of smart phones makes streaming media services common content services, and users can watch video content and listen to audio content based on streaming media technology.

In the prior art, media clipping is implemented, generally, an electronic device downloads a complete media file to a local of the electronic device, and the electronic device clips the media file through an application installed on the electronic device, so as to implement clipping of the media file. The media clipping in this way consumes a lot of computing resources, consumes a lot of power, and requires a long time to perform the clipping operation. When the media file is in a new media format, the application program on the terminal device needs to make some new development adaptations, and the media file can be edited only after the application is upgraded.

Disclosure of Invention

Compared with the prior art, the media file cutting method, the electronic equipment and the server provided by the embodiment of the invention can realize the effects of low power consumption and short cutting time of terminal side cutting.

In a first aspect, an embodiment of the present invention provides a method for clipping a media file, including: the electronic equipment acquires the media file identification and the cutting parameter and sends a cutting request to the server according to the cutting parameter. And the electronic equipment receives the cutting result information returned by the server. And the electronic equipment generates a cutting file according to the cutting result information and the media file.

In one possible implementation manner, the acquiring, by the electronic device, the media file identifier and the cropping parameter includes: and the electronic equipment receives user operation and acquires the media file identifier and the cutting parameter.

In one possible implementation, the clipping parameters include at least two of the following parameters: the starting time of cutting, the ending time of cutting and the cutting time length.

In a possible implementation manner, the cropping result information includes byte positions of a start frame and an end frame of a segment to be cropped in the media file.

In a possible implementation manner, the clipping result information further includes file header information of the clipped file.

In one possible implementation, the header information is modified by the server.

In a possible implementation manner, the electronic device displays a cutting setting interface, and receives an operation of a user through the cutting setting interface to obtain a cutting parameter.

In a possible implementation manner, the electronic device displays a clipping file operation interface, and the clipping file operation interface is used for controlling the clipping file.

In one possible implementation, the clip file is saved; or, auditing the cut file; or setting the cutting file as a ring tone.

In a possible implementation manner, the electronic device clips the media file through music playing software or video playing software.

According to the media clipping method provided by the embodiment of the invention, the electronic equipment displays the operation interface, and a user can set clipping parameters through the setting interface and select the operation of clipping files, so that the user experience is improved, and the resource occupation and the power consumption of the electronic equipment are saved.

In a second aspect, an embodiment of the present invention provides an electronic device for implementing media file clipping, where the electronic device includes: the display screen, the processor and the memory, wherein the memory is used for storing programs; the processor is configured to invoke the program to enable the electronic device to execute the media file clipping method of the first aspect.

In a third aspect, an embodiment of the present invention provides a computer-readable storage medium, which includes instructions that, when executed on a computer, cause the computer to perform the method for clipping a media file according to the first aspect.

In a fourth aspect, an embodiment of the present invention provides a method for clipping a media file, including: a server receives a media file cutting request sent by electronic equipment, wherein the cutting request comprises a media file identifier and cutting parameters; the server acquires the media file according to the media file identification, and processes the media file according to the cutting parameter to obtain cutting result information; and the cutting result information is sent to the electronic equipment, and the cutting result information is used for enabling the electronic equipment to generate a cutting file. In the embodiment, the server finds the media file through the identifier, so that the searching process can be performed more conveniently.

In one possible implementation, the server modifies the header information.

In a fifth aspect, an embodiment of the present invention provides a server for implementing media file clipping, where the electronic device includes: a processor and a memory, wherein the memory is configured to store a program; the processor is configured to invoke the program to cause the server to perform the media file clipping method according to the fourth aspect.

In a sixth aspect, an embodiment of the present invention provides a computer-readable storage medium, which includes instructions, when executed on a computer, cause the computer to execute the media file cropping method of the fourth aspect.

According to the media cutting method, the electronic device and the server provided by the embodiment of the invention, the media file is analyzed and processed through the server to obtain the cutting result, and the electronic device generates the cutting file according to the cutting result. The resource occupation of the electronic equipment is reduced, and the processing efficiency of the media file is improved. And the electronic equipment can display an operation interface, and a user can set cutting parameters through the setting interface and select the operation of cutting files, so that the user experience is improved, and the resource occupation and the power consumption of the electronic equipment are saved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below.

Fig. 1A is a schematic diagram of a structure of an electronic device according to an embodiment of the present invention;

fig. 1B is a schematic diagram of a software structure of an electronic device according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a media clipping system according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a server in an embodiment of the invention;

FIG. 4 is a schematic diagram of another server in an embodiment of the invention;

FIG. 5 is a schematic diagram of a first application interface of the music player according to the embodiment of the present invention;

FIG. 6 is a diagram of a second application interface of the music player in the embodiment of the present invention;

FIG. 7 is a schematic diagram of a third application interface of the music player in the embodiment of the present invention;

FIG. 8 is a fourth application interface diagram of a music player in an embodiment of the present invention;

FIG. 9 is a diagram illustrating a structure of a media file according to an embodiment of the present invention;

FIG. 10 is a diagram illustrating a structure of a clip file according to an embodiment of the present invention;

FIG. 11 is a schematic diagram of media content of a media file in an embodiment of the invention;

FIG. 12 is a diagram illustrating media content of a clip file according to an embodiment of the invention.

Detailed Description

The terminology used in the following embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used in the specification of the present application and the appended claims, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the listed items.

Embodiments of an electronic device, a user interface for such an electronic device, and for using such an electronic device are described below. In some embodiments, the electronic device may be a portable electronic device, such as a cell phone, a tablet, a wearable electronic device with wireless communication capabilities (e.g., a smart watch), and the like, that also includes other functionality, such as personal digital assistant and/or music player functionality. Exemplary embodiments of the portable electronic device include, but are not limited to, a mount

Or other operating system. The portable electronic device may also be other portable electronic devices such as a Laptop computer (Laptop) with a touch sensitive surface or touch panel, etc. It should also be understood that in other embodiments, the electronic device may not be a portable electronic device, but rather a desktop computer having a touch-sensitive surface or touch panel.

The term "User Interface (UI)" in the specification, claims and drawings of the present application is a medium interface for interaction and information exchange between an application program or operating system and a user, and it implements conversion between an internal form of information and a form acceptable to the user. The user interface of the application program is a source code written by a specific computer language such as java, extensible markup language (XML), and the like, and the interface source code is analyzed and rendered on the terminal device, and finally presented as content that can be identified by the user, such as controls such as pictures, characters, buttons, and the like. Controls (controls), also called widgets, are basic elements of user interfaces, and typical controls are tool bars (toolbar), menu bars (menu bar), text boxes (text box), buttons (button), scroll bars (scrollbar), pictures, and texts. The properties and contents of the controls in the interface are defined by tags or nodes, for example, XML specifies the controls contained in the interface by nodes such as < Textview >, < ImgView >, < VideoView >. A node corresponds to a control or attribute in the interface, and the node is displayed as content visible to a user after being parsed and rendered. In addition, many applications, such as hybrid applications (hybrid applications), typically include web pages in their interfaces. A web page, also called a page, can be understood as a special control embedded in an application program interface, the web page is a source code written by a specific computer language, such as hypertext markup language (HTML), cascading Style Sheets (CSS), java scripts (JavaScript, JS), etc., and the web page source code can be loaded and displayed as a content recognizable to a user by a browser or a web page display component similar to a browser function. The specific content contained in the web page is also defined by tags or nodes in the source code of the web page, such as HTML, which defines elements and attributes of the web page by < p >, < img >, < video >, < canvas >.

The common presentation form of the user interface is Graphical User Interface (GUI), which refers to the use related to computer operation and displayed in a graphical manner

A user interface. It may be an interface element such as an icon, a window, a control, etc. displayed in the display screen of the electronic device, where the control may include a visual interface element such as an icon, a button, a menu, a tab, a text box, a dialog box, a status bar, a navigation bar, a Widget, etc.

The technical scheme of the embodiment of the invention is different from the prior art that the cutting of the media is realized by electronic equipment, and the embodiment of the invention realizes the cutting of the media by processing. The media is cut through processing, and the power consumption of the electronic equipment for cutting the media is saved. Due to the high computational power of the processing, the time for the overall media clipping will also be less.

In some embodiments, after the above functions are turned on, the electronic device may discover the server through a cellular mobile communication network technology or a wide area network technology. For a specific implementation of the discovery server, in some embodiments, after the electronic device connects to the server in the network, the server may provide the electronic device with a device list of other devices connected to the server, so that the electronic device may discover the other devices, which may be servers discovered by the electronic device.

An exemplary electronic device 100 provided in the following embodiments of the present application is first introduced.

Fig. 1A shows a schematic structural diagram of the electronic device 100.

The electronic device 100 may include a processor 110, an external memory interface 120, an internal memory 121, a Universal Serial Bus (USB) interface 130, a charging management module 140, a power management module 141, a battery 142, an antenna 1, an antenna 2, a mobile communication module 150, a wireless communication module 160, an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an earphone interface 170D, a sensor module 180, a key 190, a motor 191, an indicator 192, a camera 193, a display screen 194, a Subscriber Identity Module (SIM) card interface 195, and the like. The sensor module 180 may include a pressure sensor 180A, a gyroscope sensor 180B, an air pressure sensor 180C, a magnetic sensor 180D, an acceleration sensor 180E, a distance sensor 180F, a proximity light sensor 180G, a fingerprint sensor 180H, a temperature sensor 180J, a touch sensor 180K, an ambient light sensor 180L, a bone conduction sensor 180M, and the like.

It is to be understood that the illustrated structure of the embodiment of the present invention does not specifically limit the electronic device 100. In other embodiments of the present application, the electronic device 100 may include more or fewer components than shown, or combine certain components, or split certain components, or arrange different components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

Processor 110 may include one or more processing units, such as: the processor 110 may include an Application Processor (AP), a modem processor, a Graphics Processing Unit (GPU), an Image Signal Processor (ISP), a controller, a memory, a video codec, a Digital Signal Processor (DSP), a baseband processor, and/or a neural-Network Processing Unit (NPU), etc. The different processing units may be separate devices or may be integrated into one or more processors. In some embodiments, the electronic device 100 may also include one or more processors 110.

The controller may be, among other things, a neural center and a command center of the electronic device 100. The controller can generate an operation control signal according to the instruction operation code and the timing signal to complete the control of instruction fetching and instruction execution.

A memory may also be provided in processor 110 for storing instructions and data. In some embodiments, the memory in the processor 110 is a cache memory. The memory may hold instructions or data that have just been used or recycled by the processor 110. If the processor 110 needs to use the instruction or data again, it can be called directly from the memory. Avoiding repeated accesses reduces the latency of the processor 110, thereby increasing the efficiency of the electronic device 100.

In some embodiments, processor 110 may include one or more interfaces. The interface may include an inter-integrated circuit (I2C) interface, an inter-integrated circuit (I2S) interface, a Pulse Code Modulation (PCM) interface, a universal asynchronous receiver/transmitter (UART) interface, a Mobile Industry Processor Interface (MIPI), a general-purpose input/output (GPIO) interface, a Subscriber Identity Module (SIM) interface, and/or a Universal Serial Bus (USB) interface, etc.

The I2C interface is a bidirectional synchronous serial bus including a serial data line (SDA) and a Serial Clock Line (SCL). In some embodiments, processor 110 may include multiple sets of I2C buses. The processor 110 may be coupled to the touch sensor 180K, a charger, a flash, a camera 193, etc. through different I2C bus interfaces, respectively. For example: the processor 110 may be coupled to the touch sensor 180K through an I2C interface, so that the processor 110 and the touch sensor 180K communicate through an I2C bus interface to implement a touch function of the electronic device 100.

The I2S interface may be used for audio communication. In some embodiments, processor 110 may include multiple sets of I2S buses. The processor 110 may be coupled to the audio module 170 through an I2S bus, enabling communication between the processor 110 and the audio module 170. In some embodiments, the audio module 170 may transmit an audio signal to the wireless communication module 160 through the I2S interface, so as to implement a function of answering a call through a bluetooth headset.

The PCM interface may also be used for audio communication, sampling, quantizing and encoding analog signals. In some embodiments, the audio module 170 and the wireless communication module 160 may be coupled by a PCM bus interface. In some embodiments, the audio module 170 may also transmit audio signals to the wireless communication module 160 through the PCM interface, so as to implement a function of answering a call through a bluetooth headset. Both the I2S interface and the PCM interface may be used for audio communication.

The UART interface is a universal serial data bus used for asynchronous communications. The bus may be a bidirectional communication bus. It converts the data to be transmitted between serial communication and parallel communication. In some embodiments, a UART interface is generally used to connect the processor 110 with the wireless communication module 160. For example: the processor 110 communicates with a bluetooth module in the wireless communication module 160 through a UART interface to implement a bluetooth function. In some embodiments, the audio module 170 may transmit the audio signal to the wireless communication module 160 through a UART interface, so as to implement the function of playing music through a bluetooth headset.

MIPI interfaces may be used to connect processor 110 with peripheral devices such as display screen 194, camera 193, and the like. The MIPI interface includes a Camera Serial Interface (CSI), a Display Serial Interface (DSI), and the like. In some embodiments, processor 110 and camera 193 communicate through a CSI interface to implement the capture functionality of electronic device 100. Processor 110 and display screen 194 communicate via a DSI interface to implement display functions of electronic device 100.

The GPIO interface may be configured by software. The GPIO interface may be configured as a control signal and may also be configured as a data signal. In some embodiments, a GPIO interface may be used to connect the processor 110 with the camera 193, the display 194, the wireless communication module 160, the audio module 170, the sensor module 180, and the like. The GPIO interface may also be configured as an I2C interface, I2S interface, UART interface, MIPI interface, and the like.

The USB interface 130 is an interface conforming to the USB standard specification, and may be a Mini USB interface, a Micro USB interface, a USB Type C interface, or the like. The USB interface 130 may be used to connect a charger to charge the electronic device 100, and may also be used to transmit data between the electronic device 100 and a peripheral device. And the earphone can also be used for connecting an earphone and playing audio through the earphone. The interface may also be used to connect other electronic devices, such as AR devices and the like.

It should be understood that the connection relationship between the modules according to the embodiment of the present invention is only illustrative, and is not limited to the structure of the electronic device 100. In other embodiments, the electronic device 100 may also adopt different interface connection manners or a combination of multiple interface connection manners in the above embodiments.

The charging management module 140 is configured to receive charging input from a charger. The charger may be a wireless charger or a wired charger. In some wired charging embodiments, the charging management module 140 may receive charging input from a wired charger via the USB interface 130. In some wireless charging embodiments, the charging management module 140 may receive a wireless charging input through a wireless charging coil of the electronic device 100. The charging management module 140 may also supply power to the electronic device through the power management module 141 while charging the battery 142.

The power management module 141 is used to connect the battery 142, the charging management module 140 and the processor 110. The power management module 141 receives input from the battery 142 and/or the charge management module 140 and provides power to the processor 110, the internal memory 121, the external memory, the display 194, the camera 193, the wireless communication module 160, and the like. The power management module 141 may also be used to monitor parameters such as battery capacity, battery cycle count, battery state of health (leakage, impedance), etc. In some other embodiments, the power management module 141 may also be disposed in the processor 110. In other embodiments, the power management module 141 and the charging management module 140 may be disposed in the same device.

The wireless communication function of the electronic device 100 may be implemented by the antenna 1, the antenna 2, the mobile communication module 150, the wireless communication module 160, a modem processor, a baseband processor, and the like.

The

antennas

1 and 2 are used for transmitting and receiving electromagnetic wave signals. Each antenna in the electronic device 100 may be used to cover a single or multiple communication bands. Different antennas can also be multiplexed to improve the utilization of the antennas. For example: the antenna 1 may be multiplexed as a diversity antenna of a wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch.

The mobile communication module 150 may provide a solution including 2G/3G/4G/5G wireless communication applied to the electronic device 100. The mobile communication module 150 may include at least one filter, a switch, a power amplifier, a Low Noise Amplifier (LNA), and the like. The mobile communication module 150 may receive the electromagnetic wave from the antenna 1, filter, amplify, etc. the received electromagnetic wave, and transmit the electromagnetic wave to the modem processor for demodulation. The mobile communication module 150 may also amplify the signal modulated by the modem processor, and convert the signal into electromagnetic wave through the antenna 1 to radiate the electromagnetic wave. In some embodiments, at least some of the functional modules of the mobile communication module 150 may be disposed in the processor 110. In some embodiments, at least some of the functional modules of the mobile communication module 150 may be disposed in the same device as at least some of the modules of the processor 110.

The modem processor may include a modulator and a demodulator. The modulator is used for modulating a low-frequency baseband signal to be transmitted into a medium-high frequency signal. The demodulator is used for demodulating the received electromagnetic wave signal into a low-frequency baseband signal. The demodulator then passes the demodulated low frequency baseband signal to a baseband processor for processing. The low frequency baseband signal is processed by the baseband processor and then transferred to the application processor. The application processor outputs a sound signal through an audio device (not limited to the speaker 170A, the receiver 170B, etc.) or displays an image or video through the display screen 194. In some embodiments, the modem processor may be a stand-alone device. In other embodiments, the modem processor may be provided in the same device as the mobile communication module 150 or other functional modules, independent of the processor 110.

The wireless communication module 160 may provide a solution for wireless communication applied to the electronic device 100, including Wireless Local Area Networks (WLANs) (e.g., wireless fidelity (Wi-Fi) networks), bluetooth (bluetooth, BT), global Navigation Satellite System (GNSS), frequency Modulation (FM), near Field Communication (NFC), infrared (IR), and the like. The wireless communication module 160 may be one or more devices integrating at least one communication processing module. The wireless communication module 160 receives electromagnetic waves via the antenna 2, performs frequency modulation and filtering on electromagnetic wave signals, and transmits the processed signals to the processor 110. The wireless communication module 160 may also receive a signal to be transmitted from the processor 110, perform frequency modulation and amplification on the signal, and convert the signal into electromagnetic waves via the antenna 2 to radiate the electromagnetic waves. Illustratively, the wireless communication module 160 may include a Bluetooth module, a Wi-Fi module, and the like.

In some embodiments, antenna 1 of electronic device 100 is coupled to mobile communication module 150 and antenna 2 is coupled to wireless communication module 160 so that electronic device 100 can communicate with networks and other devices through wireless communication techniques. The wireless communication technology may include global system for mobile communications (GSM), general Packet Radio Service (GPRS), code Division Multiple Access (CDMA), wideband Code Division Multiple Access (WCDMA), time division code division multiple access (time-division multiple access, TD-SCDMA), long Term Evolution (LTE), BT, GNSS, WLAN, NFC, FM, and/or IR technologies, etc. The GNSS may include a Global Positioning System (GPS), a global navigation satellite system (GLONASS), a beidou navigation satellite system (BDS), a quasi-zenith satellite system (QZSS), and/or a Satellite Based Augmentation System (SBAS).

In some embodiments, a Bluetooth (BT) module or a WLAN module included in the wireless communication module 160 may transmit a signal to detect or scan a device near the electronic device 100, so that the electronic device 100 may discover the nearby device using a wireless communication technology such as bluetooth or WLAN, establish a wireless communication connection with the nearby device, and share data to the nearby device through the connection. Among other things, a Bluetooth (BT) module may provide solutions that include one or more of classic Bluetooth (Bluetooth 2.1) or Bluetooth Low Energy (BLE) Bluetooth communication. The WLAN module may provide solutions that include one or more of Wi-Fi direct, wi-Fi LAN, or Wi-Fi softAP WLAN communications.

In some embodiments, the solution for wireless communication provided by the mobile communication module 150 may enable the electronic device to communicate with a device (e.g., a server) in a network, and the solution for WLAN wireless communication provided by the wireless communication module 160 may also enable the electronic device to communicate with a device (e.g., a server) in a network and may communicate with a processing device through the device (e.g., a server) in the network. Thus, the electronic device can discover the processing device and transmit data to the processing device.

The electronic device 100 may implement display functions via the GPU, the display screen 194, and the application processor. The GPU is a microprocessor for image processing, connected to the display screen 194 and the application processor. The GPU is used to perform mathematical and geometric calculations for graphics rendering. The processor 110 may include one or more GPUs that execute instructions to generate or change display information.

The display screen 194 is used to display images, video, and the like. The display screen 194 includes a display panel. The display panel may adopt a Liquid Crystal Display (LCD), an organic light-emitting diode (OLED), an active-matrix organic light-emitting diode (active-matrix organic light-emitting diode, AMOLED), a flexible light-emitting diode (FLED), a miniature, a Micro-oeld, a quantum dot light-emitting diode (QLED), and the like. In some embodiments, the electronic device 100 may include 1 or N display screens 194, N being a positive integer greater than 1.

The electronic device 100 may implement a photographing function through the ISP, the camera 193, the video codec, the GPU, the display screen 194, and the application processor, etc.

The ISP is used to process the data fed back by the camera 193. For example, when a photo is taken, the shutter is opened, light is transmitted to the camera photosensitive element through the lens, the optical signal is converted into an electrical signal, and the camera photosensitive element transmits the electrical signal to the ISP for processing and converting into an image visible to naked eyes. The ISP can also carry out algorithm optimization on the noise, brightness and skin color of the image. The ISP can also optimize parameters such as exposure, color temperature and the like of a shooting scene. In some embodiments, the ISP may be provided in camera 193.

The camera 193 is used to capture still images or video. The object generates an optical image through the lens and projects the optical image to the photosensitive element. The photosensitive element may be a Charge Coupled Device (CCD) or a complementary metal-oxide-semiconductor (CMOS) phototransistor. The photosensitive element converts the optical signal into an electrical signal, and then transmits the electrical signal to the ISP to be converted into a digital image signal. And the ISP outputs the digital image signal to the DSP for processing. The DSP converts the digital image signal into image signal in standard RGB, YUV and other formats. In some embodiments, electronic device 100 may include 1 or N cameras 193, N being a positive integer greater than 1.

The digital signal processor is used for processing digital signals, and can process digital image signals and other digital signals. For example, when the electronic device 100 selects a frequency bin, the digital signal processor is used to perform fourier transform or the like on the frequency bin energy.

Video codecs are used to compress or decompress digital video. The electronic device 100 may support one or more video codecs. In this way, the electronic device 100 may play or record video in a variety of encoding formats, such as: moving Picture Experts Group (MPEG) -1, MPEG-2, MPEG-3, MPEG-4, and so on.

The NPU is a neural-network (NN) computing processor that processes input information quickly by using a biological neural network structure, for example, by using a transfer mode between neurons of a human brain, and can also learn by itself continuously. Applications such as intelligent recognition of the electronic device 100 can be implemented by the NPU, for example: image recognition, face recognition, speech recognition, text understanding, and the like.

The external memory interface 120 may be used to connect an external memory card, such as a Micro SD card, to extend the memory capability of the electronic device 100. The external memory card communicates with the processor 110 through the external memory interface 120 to implement a data storage function. For example, data such as music, photos, videos, and the like are stored in the external memory card.

Internal memory 121 may be used to store one or more computer programs, including instructions. The processor 110 may execute the above-mentioned instructions stored in the internal memory 121, so as to enable the electronic device 100 to perform the method for media cropping provided in some embodiments of the present application, and various functional applications and data processing, etc. The internal memory 121 may include a program storage area and a data storage area. Wherein, the storage program area can store an operating system; the storage area may also store one or more application programs (e.g., gallery, contacts, etc.), etc. The storage data area may store data (e.g., photos, contacts, etc.) created during use of the electronic device 100. In addition, the internal memory 121 may include a high-speed random access memory, and may further include a nonvolatile memory, such as at least one magnetic disk storage device, a flash memory device, a universal flash memory (UFS), and the like.

The electronic device 100 may implement audio functions via the audio module 170, the speaker 170A, the receiver 170B, the microphone 170C, the headphone interface 170D, and the application processor. Such as music playing, recording, etc.

The audio module 170 is used to convert digital audio information into an analog audio signal output and also to convert an analog audio input into a digital audio signal. The audio module 170 may also be used to encode and decode audio signals. In some embodiments, the audio module 170 may be disposed in the processor 110, or some functional modules of the audio module 170 may be disposed in the processor 110.

The speaker 170A, also called a "horn", is used to convert the audio electrical signal into an acoustic signal. The electronic apparatus 100 can listen to music through the speaker 170A or listen to a handsfree call.

The receiver 170B, also called "earpiece", is used to convert the electrical audio signal into an acoustic signal. When the electronic apparatus 100 receives a call or voice information, it is possible to receive voice by placing the receiver 170B close to the human ear.

The microphone 170C, also referred to as a "microphone," is used to convert sound signals into electrical signals. When making a call or transmitting voice information, the user can input a voice signal to the microphone 170C by speaking near the microphone 170C through the mouth. The electronic device 100 may be provided with at least one microphone 170C. In other embodiments, the electronic device 100 may be provided with two microphones 170C to achieve a noise reduction function in addition to collecting sound signals. In other embodiments, the electronic device 100 may further include three, four or more microphones 170C to collect sound signals, reduce noise, identify sound sources, perform directional recording, and so on.

The earphone interface 170D is used to connect a wired earphone. The headset interface 170D may be the USB interface 130, or may be a 3.5mm open mobile electronic device platform (OMTP) standard interface, a cellular telecommunications industry association (cellular telecommunications industry association of the USA, CTIA) standard interface.

The pressure sensor 180A is used for sensing a pressure signal, and can convert the pressure signal into an electrical signal. In some embodiments, the pressure sensor 180A may be disposed on the display screen 194. The pressure sensor 180A can be of a variety of types, such as a resistive pressure sensor, an inductive pressure sensor, a capacitive pressure sensor, and the like. The capacitive pressure sensor may be a sensor comprising at least two parallel plates having an electrically conductive material. When a force acts on the pressure sensor 180A, the capacitance between the electrodes changes. The electronic device 100 determines the strength of the pressure from the change in capacitance. When a touch operation is applied to the display screen 194, the electronic device 100 detects the intensity of the touch operation according to the pressure sensor 180A. The electronic apparatus 100 may also calculate the touched position from the detection signal of the pressure sensor 180A. In some embodiments, the touch operations that are applied to the same touch position but different touch operation intensities may correspond to different operation instructions. For example: and when the touch operation with the touch operation intensity smaller than the first pressure threshold value acts on the short message application icon, executing an instruction for viewing the short message. And when the touch operation with the touch operation intensity larger than or equal to the first pressure threshold value acts on the short message application icon, executing an instruction of newly building the short message.

The gyro sensor 180B may be used to determine the motion attitude of the electronic device 100. In some embodiments, the angular velocity of electronic device 100 about three axes (i.e., x, y, and z axes) may be determined by gyroscope sensor 180B. The gyro sensor 180B may be used for photographing anti-shake. For example, when the shutter is pressed, the gyro sensor 180B detects a shake angle of the electronic device 100, calculates a distance to be compensated for by the lens module according to the shake angle, and allows the lens to counteract the shake of the electronic device 100 through a reverse movement, thereby achieving anti-shake. The gyroscope sensor 180B may also be used for navigation, somatosensory gaming scenes.

The air pressure sensor 180C is used to measure air pressure. In some embodiments, electronic device 100 calculates altitude from barometric pressure values measured by barometric pressure sensor 180C to assist in positioning and navigation.

The magnetic sensor 180D includes a hall sensor. The electronic device 100 may detect the opening and closing of the flip holster using the magnetic sensor 180D. In some embodiments, when the electronic device 100 is a flip phone, the electronic device 100 may detect the opening and closing of the flip according to the magnetic sensor 180D. And then according to the detected opening and closing state of the leather sheath or the opening and closing state of the flip, the characteristics of automatic unlocking of the flip and the like are set.

The acceleration sensor 180E may detect the magnitude of acceleration of the electronic device 100 in various directions (typically three axes). The magnitude and direction of gravity can be detected when the electronic device 100 is stationary. The method can also be used for identifying the posture of the electronic equipment, and is applied to horizontal and vertical screen switching, pedometers and the like.

A distance sensor 180F for measuring a distance. The electronic device 100 may measure the distance by infrared or laser. In some embodiments, taking a picture of a scene, the electronic device 100 may utilize the distance sensor 180F to range to achieve fast focus.

The proximity light sensor 180G may include, for example, a Light Emitting Diode (LED) and a light detector, such as a photodiode. The light emitting diode may be an infrared light emitting diode. The electronic device 100 emits infrared light to the outside through the light emitting diode. The electronic device 100 detects infrared reflected light from a nearby object using a photodiode. When sufficient reflected light is detected, it can be determined that there is an object near the electronic device 100. When insufficient reflected light is detected, the electronic device 100 may determine that there are no objects near the electronic device 100. The electronic device 100 can utilize the proximity light sensor 180G to detect that the user holds the electronic device 100 close to the ear for talking, so as to automatically turn off the screen to achieve the purpose of saving power. The proximity light sensor 180G can also be used in a holster mode, a pocket mode automatically unlocks and locks the screen.

The ambient light sensor 180L is used to sense the ambient light level. Electronic device 100 may adaptively adjust the brightness of display screen 194 based on the perceived ambient light level. The ambient light sensor 180L can also be used to automatically adjust the white balance when taking a picture. The ambient light sensor 180L may also cooperate with the proximity light sensor 180G to detect whether the electronic device 100 is in a pocket to prevent accidental touches.

The fingerprint sensor 180H is used to collect a fingerprint. The electronic device 100 can utilize the collected fingerprint characteristics to unlock the fingerprint, access the application lock, photograph the fingerprint, answer an incoming call with the fingerprint, and so on.

The temperature sensor 180J is used to detect temperature. In some embodiments, electronic device 100 implements a temperature processing strategy using the temperature detected by temperature sensor 180J. For example, when the temperature reported by the temperature sensor 180J exceeds a threshold, the electronic device 100 performs a reduction in performance of a processor located near the temperature sensor 180J, so as to reduce power consumption and implement thermal protection. In other embodiments, the electronic device 100 heats the battery 142 when the temperature is below another threshold to avoid the low temperature causing the electronic device 100 to shut down abnormally. In other embodiments, when the temperature is lower than a further threshold, the electronic device 100 performs boosting on the output voltage of the battery 142 to avoid abnormal shutdown due to low temperature.

Touch sensor 180K, may also be referred to as a touch panel or touch sensitive surface. The touch sensor 180K may be disposed on the display screen 194, and the touch sensor 180K and the display screen 194 form a touch screen, which is also called a "touch screen". The touch sensor 180K is used to detect a touch operation applied thereto or nearby. The touch sensor can communicate the detected touch operation to the application processor to determine the touch event type. Visual output associated with the touch operation may be provided via the display screen 194. In other embodiments, the touch sensor 180K may be disposed on a surface of the electronic device 100, different from the position of the display screen 194.

The bone conduction sensor 180M may acquire a vibration signal. In some embodiments, the bone conduction sensor 180M may acquire a vibration signal of the human voice vibrating a bone mass. The bone conduction sensor 180M may also contact the human pulse to receive the blood pressure pulsation signal. In some embodiments, the bone conduction sensor 180M may also be disposed in a headset, integrated into a bone conduction headset. The audio module 170 may analyze a voice signal based on the vibration signal of the bone mass vibrated by the sound part acquired by the bone conduction sensor 180M, so as to implement a voice function. The application processor can analyze heart rate information based on the blood pressure beating signal acquired by the bone conduction sensor 180M, so as to realize the heart rate detection function.

The keys 190 include a power-on key, a volume key, and the like. The keys 190 may be mechanical keys. Or may be touch keys. The electronic apparatus 100 may receive a key input, and generate a key signal input related to user setting and function control of the electronic apparatus 100.

The motor 191 may generate a vibration cue. The motor 191 may be used for incoming call vibration cues, as well as for touch vibration feedback. For example, touch operations applied to different applications (e.g., photographing, audio playing, etc.) may correspond to different vibration feedback effects. The motor 191 may also respond to different vibration feedback effects for touch operations applied to different areas of the display screen 194. Different application scenes (such as time reminding, receiving information, alarm clock, game and the like) can also correspond to different vibration feedback effects. The touch vibration feedback effect may also support customization.

Indicator 192 may be an indicator light that may be used to indicate a state of charge, a change in charge, or a message, missed call, notification, etc.

The SIM card interface 195 is used to connect a SIM card. The SIM card can be brought into and out of contact with the electronic apparatus 100 by being inserted into the SIM card interface 195 or being pulled out of the SIM card interface 195. The electronic device 100 may support 1 or N SIM card interfaces, N being a positive integer greater than 1. The SIM card interface 195 may support a Nano SIM card, a Micro SIM card, a SIM card, etc. Multiple cards can be inserted into the same SIM card interface 195 at the same time. The types of the plurality of cards can be the same or different. The SIM card interface 195 may also be compatible with different types of SIM cards. The SIM card interface 195 may also be compatible with external memory cards. The electronic device 100 interacts with the network through the SIM card to implement functions such as communication and data communication. In some embodiments, the electronic device 100 employs esims, namely: an embedded SIM card. The eSIM card can be embedded in the electronic device 100 and cannot be separated from the electronic device 100.

The electronic device 100 exemplarily illustrated in fig. 1A may display various user interfaces described in various embodiments below through the display screen 194. The electronic device 100 may detect a touch operation in each user interface through the touch sensor 180K, such as a click operation in each user interface (e.g., a touch operation on an icon, a double-click operation), an upward or downward sliding operation in each user interface, or an operation of performing a circle-making gesture, and so on. In some embodiments, the electronic device 100 may detect a motion gesture performed by the user holding the electronic device 100, such as shaking the electronic device, through the gyroscope sensor 180B, the acceleration sensor 180E, and so on. In some embodiments, the electronic device 100 may detect non-touch gesture operations through the camera 193 (e.g., 3D camera, depth camera).

The software system of the electronic device 100 may employ a layered architecture, an event-driven architecture, a micro-core architecture, a micro-service architecture, or a cloud architecture. The embodiment of the present invention uses an Android system with a hierarchical architecture as an example to exemplarily explain a software structure of the electronic device 100.

Fig. 1B is a block diagram of a software configuration of the electronic device 100 according to the embodiment of the present invention.

The layered architecture divides the software into several layers, each layer having a clear role and division of labor. The layers communicate with each other through a software interface. In some embodiments, the Android system is divided into four layers, an application layer, an application framework layer, an Android runtime (Android runtime) and system library, and a kernel layer from top to bottom.

The application layer may include a series of application packages.

As shown in fig. 1B, the application package may include applications such as camera, gallery, calendar, phone call, map, navigation, WLAN, bluetooth, music, video, short message, etc.

The application framework layer provides an Application Programming Interface (API) and a programming framework for the application program of the application layer. The application framework layer includes a number of predefined functions.

As shown in FIG. 1B, the application framework layers may include a window manager, content provider, view system, phone manager, resource manager, notification manager, and the like.

The window manager is used for managing window programs. The window manager can obtain the size of the display screen, judge whether a status bar exists, lock the screen, intercept the screen and the like.

The content provider is used to store and retrieve data and make it accessible to applications. The data may include video, images, audio, calls made and answered, browsing history and bookmarks, phone books, etc.

The view system includes visual controls such as controls to display text, controls to display pictures, and the like. The view system may be used to build applications. The display interface may be composed of one or more views. For example, the display interface including the short message notification icon may include a view for displaying text and a view for displaying pictures.

The phone manager is used to provide communication functions of the electronic device 100. Such as management of call status (including on, off, etc.).

The resource manager provides various resources for the application, such as localized strings, icons, pictures, layout files, video files, and the like.

The notification manager enables the application to display notification information in the status bar, can be used to convey notification-type messages, can disappear automatically after a short dwell, and does not require user interaction. Such as a notification manager used to notify download completion, message alerts, etc. The notification manager may also be a notification that appears in the form of a chart or scrollbar text in a status bar at the top of the system, such as a notification of a running application in the background, or a notification that appears on the screen in the form of a dialog window. For example, prompting text information in the status bar, sounding a prompt tone, vibrating the electronic device, flashing an indicator light, etc.

The Android Runtime comprises a core library and a virtual machine. The Android runtime is responsible for scheduling and managing an Android system.

The core library comprises two parts: one part is a function which needs to be called by java language, and the other part is a core library of android.

The application layer and the application framework layer run in a virtual machine. And executing java files of the application program layer and the application program framework layer into a binary file by the virtual machine. The virtual machine is used for performing the functions of object life cycle management, stack management, thread management, safety and exception management, garbage collection and the like.

The system library may include a plurality of functional modules. For example: surface managers (surface managers), media Libraries (Media Libraries), three-dimensional graphics processing Libraries (e.g., openGL ES), 2D graphics engines (e.g., SGL), and the like.

The surface manager is used to manage the display subsystem and provide fusion of 2D and 3D layers for multiple applications.

The media library supports a variety of commonly used audio, video format playback and recording, and still image files, among others. The media library may support a variety of audio-video encoding formats such as MPEG4, h.264, MP3, AAC, AMR, JPG, PNG, etc.

The three-dimensional graphic processing library is used for realizing three-dimensional graphic drawing, image rendering, synthesis, layer processing and the like.

The 2D graphics engine is a drawing engine for 2D drawing.

The kernel layer is a layer between hardware and software. The inner core layer at least comprises a display driver, a camera driver, an audio driver and a sensor driver.

The software system shown in fig. 1B relates to application presentation (e.g., gallery, file manager) using sharing capability, an instant sharing module providing sharing capability, print service (print service) and print background service (print spooner) providing printing capability, and an application framework layer providing print framework, WLAN service, bluetooth service, and a kernel and an underlying layer providing WLAN bluetooth capability and basic communication protocol.

The following describes exemplary workflow of the software and hardware of the electronic device 100 in connection with capturing a photo scene.

When the touch sensor 180K receives a touch operation, a corresponding hardware interrupt is issued to the kernel layer. The kernel layer processes the touch operation into an original input event (including touch coordinates, a time stamp of the touch operation, and other information). The raw input events are stored at the kernel layer. And the application program framework layer acquires the original input event from the kernel layer and identifies the control corresponding to the input event. Taking the control corresponding to the touch operation as the control of the camera application icon as an example, the camera application calls an interface of the application framework layer to start the camera application, and then starts the camera drive by calling the kernel layer, and captures a still image or a video through the camera 193.

Fig. 2 shows a system for media cutting according to an embodiment of the present invention, where the system for cutting includes an electronic device 100 and a server 202. The user operates the display screen of the electronic device 100, selects the media file a, and sends a request message requesting to cut the media file a to the cloud server. The request message may include file information of the media file a. And after receiving the request message, the server cuts corresponding media contents according to the file information and sends a cutting result to the electronic equipment. The cropping result may include the cropped summary information. The electronic device 100 regenerates the clip file B according to the clip result returned by the server 202 and the media file a.

The cutting system of the embodiment of the invention can reduce the resource occupation of the electronic equipment for cutting the media file, reduce the power consumption of the electronic equipment for cutting the media file and improve the efficiency and speed for cutting the media file.

In the embodiment of the present invention, the server may be a cloud server, or a server with a clipping function, such as an online server.

In an embodiment of the present invention, the file information of the media content in the request message may include at least one of the following information: media file identification, clipping parameters. The cropping parameters may include at least one of: the starting time of cutting, the ending time of cutting, the cutting time length and the like.

In the embodiment of the invention, the cutting parameters can be set by default, can be set by the operation of a user, and can also be intelligently identified and generated by the electronic equipment or related software to generate related parameters.

In an embodiment of the present invention, the summary information may include at least one file segment information in order, and start position and end position information of each segment in the original media file a.

In an embodiment of the present invention, the electronic device may implement the cropping function through an application installed on the electronic device. For example, the electronic device may be installed with a clipping software C, select a media file a to be clipped through the clipping software C, and send a clipping request to the cloud server through the clipping software C. The cutting software can also provide a cutting setting interface, and the media files to be cut can be selected through the cutting setting interface, and cutting parameters of the media files are set. For example, the user may select a media file to be clipped through the clip setting interface, and set a start time of the clipping and/or an end time of the clipping, and the like.

In the embodiment of the invention, the cutting software function can be independently developed and can also be realized by the existing music player or video player.

In the embodiment of the present invention, a processing method for cutting the media file a is described with reference to the electronic device 100 in fig. 1A. The display screen 194 in the electronic device 100 displays the cropping software C installed on the electronic device 100. The touch sensor 180K of the electronic device 100 receives an operation input by a user and executes a corresponding instruction. The touch sensor 180K may receive an operation of clicking the cutting software C by a user, and start the cutting software C in response to the operation. The display screen 194 displays the interface of the cutting software C. And entering a cutting setting interface of the cutting software C, and enabling a user to select the local media file A to be cut and set related cutting parameters through the cutting setting interface of the cutting software C. And the cutting software C sends a cutting request to the server according to the selection of the user. And the electronic equipment 100 receives the cutting summary information returned by the server processing, and regenerates a cutting file B according to the summary information and the local original media file A. The internal memory 121 of the electronic device 100 may store the clip file B. The user may directly play the clip file B, or may share the clip file B, or perform other operations on the clip file B, for example, set the clip file B as a ring tone.

In the embodiment of the present invention, the cutting software C may also automatically identify the highlight in the media file a to obtain the cutting parameter. For example, a video stream of several frames at a certain goal moment, or a climax part or a chorus part in a certain audio stream, without manual setting by the user.

In this embodiment of the present invention, the electronic device 100 may implement the clipping function of the clipping software C through a clipping module. The cropping function may include one or more of the following functions: the method comprises the functions of identifying a media file identifier, acquiring a cutting request, sending the cutting request, identifying cutting summary information, generating a cutting file according to the cutting summary information and the like.

In the embodiment of the invention, the server can realize the cutting function of the media file through a plurality of server devices.

In an embodiment of the present invention, as shown in the schematic server structure diagram of fig. 3, the server 300 may include a media clipping server 1021 and a media server 1022. The media cutting server 1021 receives the cutting request for cutting the media file A sent by the electronic device, and the media cutting server 1021 identifies a media file identifier and a cutting parameter in the cutting request. The cropping parameters may include a start time, an end time, or a cropping duration of the cropping. The media clipping server 1021 sends the media file identifier to the media server 1022, so as to obtain the media file corresponding to the media file identifier. The media server 1022 sends the media file corresponding to the media file identifier to the media cutting server 1021. The media cutting server 1021 cuts the media file according to the cutting parameters, and sends the generated cutting result to the electronic equipment. The clipping result information may include information of a start position and an end position of clipping the original media file a. Wherein the relative position information of each file segment marks the starting byte position, the ending byte position, etc. in the media file a.

In the embodiment of the present invention, the clipping result may include clipping summary information. The cropping result information/cropping summary information may include byte positions of a start frame and an end frame of a segment to be cropped in the media file.

As shown in fig. 3, the media cropping server 1021 may include an interaction module 1025 and a cropping processing module 1026. The interaction module 1025 is configured to interact with the electronic device or the media server 1022. The clipping processing module 1026 is configured to perform clipping processing on the media file a returned by the media server 1022 according to the clipping request, generate the clipping result, and return the clipping result to the electronic device through the interaction module 1025.

As shown in the schematic structure diagram of fig. 3, the media server 1022 may include an interaction module 1028 and a matching module 1029. The interaction module 1028 is configured to interact with the media clipping server 1021. The matching module 1029 is configured to match a corresponding media file according to the media file identifier sent by the media cutting server 1021 received by the interaction module 1028, and send the media file to the media cutting server 1021 through the interaction module 1028.

As shown in fig. 4, in another embodiment of the present invention, the server 400 may include: a processor 10213, a memory 10214, and a transceiver 10215.

The processor 10213 may implement, among other things, clipping of media. The transceiver 10215 can receive a clipping request sent by the electronic device 100, the clipping request including the media file identification and clipping parameters. The processor 10213 is configured to obtain a corresponding media file according to the media file identifier in the cutting request, and process the media file according to the cutting parameter to obtain cutting result information. The transceiver 10215 is configured to send the cutting result information to the electronic device. The memory 10214 may be used to store clipping requests, clipping parameters, media content to be clipped, or clipped media content, etc.

The embodiment of the invention realizes the cutting of the media file through the server, reduces the time for realizing the cutting of the media by the electronic equipment and the power consumption generated by the cutting, and improves the processing efficiency of the media file.

In the embodiment of the invention, because the electronic equipment cannot identify all media file types, the media file is cut by the server, so that the cutting of more types of media files is supported, and the cutting can be realized by developing the server. The application on the electronic equipment does not need to be developed and upgraded, so that the cutting of the media file is simpler and easier. And after the server realizes the cutting processing, sending the cutting result to the electronic equipment. The electronic equipment generates the cutting file according to the cutting result, and compared with the mode that the cut media file is directly sent to the electronic equipment, the scheme of the embodiment of the invention can save the resource occupation between the electronic equipment and the server.

Taking music media file clipping as an example, the clipping method in the embodiment of the present invention will be described with reference to fig. 5, fig. 6, fig. 7, and fig. 8.

Fig. 5 is a schematic diagram of a first application interface 500 of a music player in the electronic device 100 according to an embodiment of the present invention. The first application interface 500 includes a first area 501 and a second area 502. The first area 501 displays a playlist cover of the music player. The second region 502 displays a list of tracks in the player's playlist. As shown in fig. 5, track 1, track 2, track 3, \8230;, track N are displayed in the music player interface.

The user browses the content of the first application interface of the music player, likes track 2 very much, and wants to intercept the climax part of the track 2 as the ring tone of the electronic device. The user clicks track 2 on the first application interface 500 and the music player displays a second application interface 600, as shown in fig. 6. The second application interface 600 may include at least one of the following: a first portion 601, a second portion, and a third portion. The first section 601 is album cover information, the second section may include a play progress bar 602, and the third section includes control options. The control options may be at least one control option or option icon: download 603, clip 604, share 605, favorites 606, fast forward play/next control 608, fast reverse play/previous control 607. The user clicks on the crop 604 option icon at the second application interface and the music player displays a third application interface 700. As shown in FIG. 7, the third application interface 700 includes a crop setting interface. The third application interface 700 includes a clipping setting item. The cutting setting item is used for setting cutting parameters. As shown in fig. 7, for example, the cutting setting item may include a cutting control bar, and the user may select and input the cutting start time and the cutting end time by moving a start key 701 and an end key 702 on the cutting control bar. As shown in fig. 7, the cutting start time is: 1 minute and 27 seconds, and the cutting end time is as follows: 2 minutes and 02 seconds. The cutting time is as follows: for 35 seconds. The third application interface 700 may also include a crop control item. As shown in fig. 7, the cutting control item may be a "start cutting" button 703. The user clicks the "start clipping" button 703, and the music player obtains the file identifier and the clipping parameter of the track 2, and sends a clipping request to the server.

In an embodiment of the present invention, as shown in fig. 7, the third application interface of the music player may further include album cover information 704.

In the embodiment of the present invention, the server receives the file identifier of the track 2 in the cutting request, and acquires the corresponding file of the track according to the file identifier. And after the server acquires the song 2 file, cutting the song 2 file, and sending a cutting result to the music player.

And the music player reassembles a new media file according to the song 2 and the cutting result to generate a cutting file. The music player may prompt the user on an application interface. As shown in fig. 8, the user is prompted that the clip file has been saved. The fourth application interface 800 shown in fig. 8 may further include a trial listening button 802, or may be configured as a ring tone button 803 or album cover information 801. The embodiment of the invention does not limit the information prompting the user, and can prompt the user to finish cutting, or prompt the user to operate the cutting file, or prompt the user to store the cutting file, and the like. Through a prompt interface, a user can select to play the cutting file, or set the cutting file as a ring tone and the like.

The clipping method of the media file by the server is illustrated as follows with reference to fig. 9.

Fig. 9 is a schematic structural diagram of a media file in the embodiment of the present invention. For example, the media file has a playing time of 150 seconds, and the content of the media file comprises C0, C1, C2, C3, C4, C5, C6 \8230andC 150. C0 is media file header information, typically describing the content of the work name, artist name, etc. C1, C2, C3, C4, C5, C6 \8230andC 150 respectively represent the media content at each second time. The offsets X0, X1 represent the byte start and end points of C0 in the media file. X1 represents the end point of C0, but is not included in the contents of C0. X1 is the starting point of C1 and is included in the content of C1. X2 represents the end point of C1, but is not included in the content of C1. Similarly, X1, X2, X3, X4, X5, X6 \8230, xn respectively represent the byte starting point and the byte ending point of each content segment of C1, C2, C3, C4, C5, C6 \8230Cnin the media file. For the media files, the n is a positive integer less than or equal to 150.

In the embodiment of the present invention, for example, when the playing duration of the media file is m seconds, the content of the media file may be C0, C1, C2, C3, C4, C5, C6 \8230ccm. m is a positive integer.

As shown in fig. 5 and fig. 6, taking the media file as track 2 as an example, the playing time of track 2 is 150 seconds. After the user plays song 2, the electronic device successfully caches song 2. Or after the user successfully downloads the track 2, the user can select to cut the track 2.

As shown in fig. 7, the user sets the clipping parameters as: 1 minute 27 seconds-2 minutes 02 seconds. Indicating that the user wishes to crop the media content for this period of time.

And after the user clicks the 'start cutting' key, the electronic equipment acquires the file identifier and the cutting parameters of the song 2 according to the operation of the user. And the electronic equipment initiates a cutting request to the server. The clip request may include the file identification of track 2, clip request time: 1 minute and 27 seconds, and the cutting time is 35 seconds.

In this embodiment of the present invention, the cutting request may also include the file identifier of the track 2 and the cutting start time: 1. minute 27 seconds, cutting end time: 2 minutes and 02 seconds. The embodiment of the invention does not limit the specific cutting parameters, and the cutting parameters can achieve the purpose of cutting.

And the server processes according to the received cutting request to obtain a cutting result and returns the cutting result to the electronic equipment. An example of returning the clipping results is as follows:

segment0:start＝X0,end＝X1；

segment1:content＝{CC}；

segment2:start＝X87,end＝X122。

the meaning of the parameters in the above clipping results is explained as follows:

part 0 starts at offset X '0 and ends at offset X'1.

And in part 1, the content is { CC }, and the content of the part is optional. The server can modify the information of the file header through the part. For example, a "climax" name suffix is added after the original song name.

Part 2 starts at offset X87 and ends at offset X122.

In the embodiment of the present invention, X '0, X'1, X87, and X122 respectively represent the offset relative to the byte position of the original track 2 file.

The content { CC } of the part 1 is the header information edited by the server. Assume that the length of CC is Z. Z is a positive integer. For example, the song title of the track 2 is modified. The content CC pointed to by the content in segment1, and the content of CC is the header information of the media file edited by the server. By way of a 16-ary representation example, the content is a style similar to 0x54 × 490x540x320000x000x0a 0x000x000x030x780x780x280x7e 0x32073 0x290x00. This part of the content is some media file header information that changes with respect to the original media file, e.g., ID3tag information of an mp3 file.

In the embodiment of the present invention, the segment0 and the segment1 constitute a header of the clip file. segment1 part is an optional byte. The server can modify the information of the file header of the clip file through segment 1. The server can bear modification information through the segment1 field and return the modification information to the electronic equipment. For example, the song title of track 2 is: the name of the cutting file after modification is as follows: shuangjie rod color ring edition.

In the embodiment of the present invention, usually, the parameter X'1 in the segment0 is less than or equal to X1. When X'1 is equal to X1, then the server does not modify the file header information of the track 2, nor return the content of segment 1.

And after receiving the cutting result returned by the server, the electronic equipment generates a cutting file according to the cutting result. The process of the electronic device regenerating the clip file is described with reference to fig. 10. Fig. 10 is a schematic structural diagram of the clip file.

The electronic equipment calculates the file information of the cutting file according to the song 2 and the cutting result: the starting and ending points for C '0 are X '0 and X '1, respectively, the { CC } length is Z, and the corresponding starting and ending points for the contents of section C87-C121 are X87 and X122, respectively. X87 and X122 are offsets from the original track 2 file byte position.

The electronic device extracts the contents of X '0 to X '1, { cc } corresponding ' and X87 to X122 in the original track 2 according to the offset, and regenerates the clip file. The contents corresponding to X87 to X122 are the C87, C88 \8230andC 121 parts in the original song 2.

After the electronic equipment generates the clipping file, a user can be prompted to generate the clipping file through an application interface of a music player. The electronic device may prompt the user to save, listen on, set a ring tone, or perform other operations on the clip file.

According to the media clipping method, the electronic device and the server provided by the embodiment of the invention, the media file is analyzed and processed by the server to obtain the clipping result, and the electronic device generates the clipping file according to the clipping result. The resource occupation of the electronic equipment is reduced, and the processing efficiency of the media file is improved. And the electronic equipment can display an operation interface, and a user can set cutting parameters through the setting interface and select the operation of cutting files, so that the user experience is improved, and the resource occupation and the power consumption of the electronic equipment are saved.

Fig. 11 is a schematic diagram of a media file according to an embodiment of the present invention. As shown in fig. 11, the media file is an MP3 file. The media content includes: ID3V2, 0 th to 1 st second content, 1 st to 2 nd second content, and 2 nd to 3 rd second content. ID3 is generally a number of bytes at the beginning or end of an mp3 file, to which information about the singer, title, album name, year, genre, etc. of the mp3 file is attached, which information is called ID3 information, and the ID3 information is divided into two versions, v1 and v 2. Wherein: version v1 ID3 starts with three characters TAG at the end 128 bytes of the mp3 file, followed by the song information. The v2 version is generally located at the beginning of mp3 and can store a large amount of information such as lyrics, pictures of the album, and the like. The ID3tag is a song additional message in the MP3 music file, which can add performers, authors and other types of information of songs in the MP3, thereby facilitating the management of a plurality of music pieces.

As shown in fig. 11, the content of ID3V2 includes header contents having file contents of h1 to h10 and 0x54 to 0x 00. The 0 th to 1 st seconds include the media contents of p11 to p 13. The 1 st to 2 nd seconds include the media contents of p21 to p 26. The 2 nd to 3 rd seconds include the media contents of p31 to p 37. It should be noted that h1 to h10 do not mean that the content is only 10 bytes, but is just an example, and the actual size may be larger than this.

As shown in fig. 12, the file header of the clipped media returned by the server is added by 0x28, 0x30, 0x7E, 0x32, 0x73, and 0x29 between the last 0x78 and 0x00 in ID3V2 in fig. 11. These added header file contents represent: and adding new content to the file title. For example, the original file title is xx, modified to xx (0-2 s); the newly added contents of the file header, i.e., the several characters, represent 0 to 2 seconds. The clipped contents are 0 to 1 second and 1 to 2 seconds contents, i.e., p11 to p26 contents.

According to the embodiment of the invention, the media file is cut by the server, so that the time for realizing media cutting by the electronic equipment and the power consumption generated by cutting are reduced.

In addition, because the electronic equipment cannot identify all media file types, the media file is cut into the server, so that almost all the media files can be cut, and the cutting of the media files is simpler and easier.

And after the server realizes the cutting, the cut result is sent to the electronic equipment, and the electronic equipment realizes the reassembly of the cut file. Compared with the method and the device for directly sending the cut media file to the electronic equipment, the method and the device for sending the media file can save the bandwidth between the electronic equipment and the server.

As used in the above embodiments, the term "when 8230; may be interpreted to mean" if 8230; "or" after 8230; "or" in response to a determination of 8230; "or" in response to a detection of 8230; "depending on the context. Similarly, the phrase "at the time of determination of \8230," or "if (a stated condition or event) is detected" may be interpreted to mean "if it is determined 8230;" or "in response to the determination of 8230;" or "upon detection of (a stated condition or event)" or "in response to the detection of (a stated condition or event)" depending on the context.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (e.g., coaxial cable, fiber optic, digital subscriber line) or wirelessly (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid state disk), among others.

One of ordinary skill in the art will appreciate that all or part of the processes in the methods of the above embodiments may be implemented by hardware related to instructions of a computer program, which may be stored in a computer-readable storage medium, and when executed, may include the processes of the above method embodiments. And the aforementioned storage medium includes: various media capable of storing program codes, such as ROM or RAM, magnetic or optical disks, etc.

Claims

1. A method of media file clipping, comprising:

the method comprises the following steps that the electronic equipment receives user operation, acquires a media file identifier and cutting parameters, or the electronic equipment acquires the media file identifier and automatically identifies the cutting parameters, wherein the cutting parameters comprise at least two of the following parameters: the starting time of cutting, the ending time of cutting and the cutting duration;

the electronic equipment sends a cutting request to a media cutting server according to the cutting parameters, and the media cutting server is used for cutting the media file;

the electronic equipment receives cutting result information returned by the media cutting server, wherein the cutting result information comprises byte positions of a starting frame and an ending frame of a segment to be cut in the media file;

and the electronic equipment generates a cutting file according to the cutting result information and the media file.

2. The method of claim 1, wherein the cropping result information further comprises header information of the cropped file.

3. The method of claim 2, wherein the header information is modified by the server.

4. The method according to any one of claims 1-3, further comprising: and the electronic equipment displays a cutting setting interface, receives the operation of a user through the cutting setting interface and acquires cutting parameters.

5. The method according to any one of claims 1-3, further comprising: and the electronic equipment displays a cutting file operation interface which is used for controlling the cutting file.

6. The method of claim 1, further comprising: saving the clipping file; or, listening to the clipping file; or setting the clipping file as a ring tone.

7. The method of claim 1, wherein the electronic device clips the media file through music playback software or video playback software.

8. An electronic device that enables media file clipping, the electronic device comprising: a display screen, a processor, and a memory, wherein,

the memory is used for storing programs;

the processor is configured to invoke the program to cause the electronic device to perform the method of any of claims 1-7.

9. A computer-readable storage medium comprising instructions that, when executed on a computer, cause the computer to perform the method of any of claims 1-7.

10. A method of media file clipping, comprising:

the method comprises the steps that a media cutting server receives a media file cutting request sent by electronic equipment, wherein the cutting request comprises a media file identifier and cutting parameters, and the cutting parameters comprise at least two of the following parameters: the starting time of cutting, the ending time of cutting and the cutting duration;

the media cutting server acquires the media file from a media file server according to the media file identification, processes the media file according to the cutting parameters to obtain cutting result information, and the cutting result information comprises byte positions of a starting frame and an ending frame of a segment to be cut in the media file;

and the media cutting server sends the cutting result information to the electronic equipment, wherein the cutting result information is used for enabling the electronic equipment to generate a cutting file.

11. The method according to claim 10, wherein the clipping result information further includes header information of the clipped file.

12. The method of claim 11, wherein the media cropping server modifies the header information.

13. A server for implementing media file clipping, the electronic device comprising: a processor and a memory, wherein,

the memory is used for storing programs;

the processor is configured to invoke the program to cause the server to perform the method of any one of claims 10-12.

14. A computer-readable storage medium comprising instructions that, when executed on a computer, cause the computer to perform the method of any of claims 10-12.