TW201711452A - Videos playback speed adjustment method and electronic apparatus using the same - Google Patents

Abstract

An electronic apparatus having a recording function and a videos playback speed adjustment method thereof are provided. The method includes, determining whether the electronic apparatus receive at least one voice command corresponding to a playback speed of a recording video when executing the recording function in a recording process. The method also includes switching a recording mode of the recording video from a first recording mode to a second recording mode when the electronic apparatus receive the at least one voice command. A first recording video clip corresponding to the first recording mode in the recording video configured for playing in a first playback speed, a second recording video clip corresponding to the second recording mode in the recording video configured for playing in a second playback speed, and the first playback speed is different from the second playback speed.

Description

Film playback speed adjustment method and electronic device thereof

The present invention relates to a method for adjusting a movie playback speed, and more particularly to a method for dynamically adjusting a movie playback speed by an electronic device having a recording function, and an electronic device using the same.

In today's era of information explosion, human life is inseparable from electronic communication. It is quite common to use people to communicate with each other through electronic communication devices, especially portable electronic devices that can be carried around, such as mobile devices. , personal digital assistant, tablet or electronic device with wireless communication.

Today, mobile communication technology is increasingly developed, and the functions of portable electronic devices are constantly being introduced. At present, many portable electronic devices have developed photography and photography functions. Currently, electronic devices having photography functions on the market must first set the frame per second (FPS) through the user before starting the recording. The movie is recorded at the set number of frames per second set during the entire process of photography. For example, suppose the set number of frames per second is set to 30fps, so the recorded movie will be played at 30fps. However, when the user wants to set a part of the recorded video to be played at a fast forward speed (for example, 60 fps), the user needs to modify the number of frames per second of each clip through the post-production software or through the splicing. To complete a recorded movie with clips of different playback speeds. Accordingly, there is a need to develop an electronic device and method that provides a user with a convenient recording of a recorded movie having segments of different playback speeds during the recording of a movie.

The invention provides a film playback speed adjustment method and an electronic device thereof, which can effectively switch a video setting by receiving a voice command to dynamically switch a video setting during recording of a movie to generate a recording of a segment having different playback speeds. film.

The present invention provides a movie playback speed adjustment method for an electronic device having a video function, the method comprising: determining whether the electronic device receives at least one voice corresponding to a playback speed of a recorded movie during a recording process of performing a video function instruction. The method further includes: if the electronic device receives at least one voice command, switching the recording mode of the recorded movie from the first recording mode to the second recording mode. Recording a first recorded movie segment corresponding to the first recording mode in the movie for playing at the first playback speed, recording a second recorded movie segment corresponding to the second recording mode in the movie for playing at the second playback speed, and playing the first The speed is different from the second playback speed.

The invention provides an electronic device comprising: a storage device and a processor. The storage device is configured to store a plurality of modules, and the processor is coupled to the storage device to load and execute the modules stored in the storage device. The module comprises: a voice command receiving module, a voice command recognition module and a film playing speed adjusting module. The voice command recognition module determines whether the electronic device receives at least one voice command corresponding to the playing speed of the recorded movie from the voice command receiving module during the recording process of the performing video function. The video playback speed adjustment module is configured to switch the recording mode of the recorded movie from the first recording mode to the second recording mode when the electronic device receives the at least one voice command. Recording a first recorded movie segment corresponding to the first recording mode in the movie for playing at the first playback speed, recording a second recorded movie segment corresponding to the second recording mode in the movie for playing at the second playback speed, and playing the first The speed is different from the second playback speed.

Based on the above, the film playback speed adjustment method and the electronic device thereof of the present invention switch the video recording mode according to the received voice command, whereby the user can directly obtain the recorded video with the segments of different playback speeds after the end of the video recording. .

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

FIG. 1 is a block diagram of an electronic device according to an exemplary embodiment of the invention. Referring to FIG. 1 , the electronic device 100 includes a storage device 102 and a processor 104 . In the exemplary embodiment, the electronic device 100 may be a mobile device, such as a mobile device, a personal digital assistant (PDA), a notebook computer, a tablet computer, or the like, for example, a digital camera, a camera, a communication device, A system such as an audio player or a video player.

The storage device 102 can be any type of fixed or removable random access memory (RAM), read-only memory (ROM), flash memory, Solid State Drive (SSD) or similar components or a combination of the above. In the present exemplary embodiment, the storage device 102 is configured to record software programs such as the voice command receiving module 110, the voice command recognition module 120, and the movie playback speed adjustment module 130. The storage device 102 described in the exemplary embodiment is not limited to a single storage component, and the foregoing software modules may be separately stored in different storage elements of two or more identical or different types.

The processor 104 is coupled to the storage device 102. The processor 104 can be a central processing unit (CPU) with a single core or multiple cores, or other programmable general purpose or special purpose microprocessor (Microprocessor), digital signal processor (Digital Signal Processor, DSP), programmable controller, Application Specific Integrated Circuit (ASIC) or other similar components or a combination of the above. In this embodiment, the processor 104 is configured to access and execute the module recorded in the storage device 102, so as to implement the movie playback speed adjustment method in the embodiment of the present invention. The processor 104 of this embodiment is not limited to being a single processing element, and may be performed by two or more processing elements in common.

In the exemplary embodiment, the user records the movie through the electronic device 100 with the video function, and instantly adjusts the movie of the movie segment with different playback speeds to be presented by issuing a voice command. For example, after the user activates the video recording function of the electronic device 100 to record the movie, the user can further activate the voice recognition function of the electronic device 100 to cause the electronic device 100 to start receiving the ambient sound to recognize the received voice command. However, the present invention is not limited thereto. For example, in another exemplary embodiment, when the user activates the video recording function of the electronic device 100 to record a movie, the voice recognition function of the electronic device 100 is simultaneously and automatically activated. To receive ambient sounds.

2 is a flow chart of a method for adjusting a movie playback speed according to an embodiment of the invention. Referring to FIG. 1 and FIG. 2 simultaneously, the method of the present embodiment is applied to the electronic device 100 described above. The following is a detailed description of the detailed process of the method of the present embodiment.

In step S201, the voice command recognition module 120 of the electronic device 100 determines whether at least one voice command corresponding to the playback speed of the recorded movie is received from the voice command receiving module 110 during the recording process of the video function. For example, the playback speed is, for example, a normal speed, a fast forward speed, or a slow motion speed, and the at least one voice command includes a normal speed voice command corresponding to the normal speed, a fast forward voice command corresponding to the fast forward speed, and a slower corresponding slow motion speed. Action voice command. For example, the normal speed voice command is "normal", the fast forward speed command is "fast forward", and the slow motion voice command is "slow motion". Therefore, when the electronic device 100 determines that the received user's voice password is When one of "normal", "fast forward" and "slow motion", the voice command recognition module 120 determines that the received password is a voice command. It should be noted that the present invention does not limit the voice password corresponding to the voice command. For example, such voice passwords can be set by the user according to their operational preferences. In particular, in another exemplary embodiment, the voice command further includes a stop voice command corresponding to a normal speed, for example, the stop speed command is “stop” or “stop”, and the voice command is stopped to stop at a fast speed or slow motion. The speed is used to adjust the recorded video, and the recorded video is resumed to be recorded at a normal speed. Therefore, when the electronic device 100 determines that the received voice password of the user is "stop" or "stop", the voice command recognition module 120 also It will be judged that the received password is also a voice command.

Referring to FIG. 2, when the electronic device 100 receives at least one voice command, the process proceeds to step S203, and in step S203, the film play speed adjustment module 130 records the recorded mode of the recorded movie from the current recording mode (also referred to as Switch to another recording mode (also known as the second recording mode) for the first recording mode. On the other hand, if the electronic device 100 does not receive at least one voice command, the process returns to step S201 to continuously determine whether at least one voice command corresponding to the playback speed of the recorded movie is received.

For example, after the user activates the video recording function of the electronic device 100 to record the movie, the movie playback speed adjustment module 130 of the electronic device 100 records according to the playback speed (also referred to as the first playback speed) corresponding to the first recording mode. The current recorded movie clip (also referred to as the first recorded movie clip), for example, the first playback speed is a speed corresponding to the normal speed and the number of display frames per second is "30 fps". Then, when the electronic device 100 receives the fast-forward voice command (for example, "fast-forward") issued by the user, since the first recording mode is switched to the second recording mode, the movie playback speed adjustment module 130 The current recorded movie clip (also referred to as the second recorded movie clip) is recorded according to the playback speed (also referred to as the second playback speed) corresponding to the second recording mode. Similarly, the second playback speed is, for example, a speed corresponding to the fast forward speed and the number of display frames per second is "60 fps". In other words, in the exemplary embodiment, the first playback speed is slower than the second playback speed, and the first recorded movie segment corresponding to the first recording mode in the recorded movie is played at the first playback speed, and the recorded movie corresponds to the second. The second recorded movie clip of the recording mode is played at the second playback speed, and the first playback speed is different from the second playback speed.

It is to be noted that the first playback speed and the second playback speed may be pre-set preset values by the user. For example, in the exemplary embodiment, the electronic device 100 is in its display unit (not shown). The prompt function setting interface is provided for the user to input the initial values of the normal speed, the fast forward speed and the slow motion speed. In more detail, the user can directly set the normal speed, fast forward speed and slow motion speed to "30fps", "60fps" and "15fps" respectively, or set the normal speed first, then select the fast forward speed and The speed multiplier between normal speeds and between slow motion speed and normal speed. For example, the user can first set the normal speed to "30fps", and further set the fast forward speed to twice the normal speed, and the slow motion speed to 1/2 times the normal speed.

FIG. 3 is a block diagram of an electronic device according to another exemplary embodiment of the invention. Referring to FIG. 3, in the exemplary embodiment, the module stored in the storage device 102 further includes a database creation module 140, and similarly, the electronic device 100 performs the step of adjusting the movie playback speed shown in FIG. . In particular, in this example, the electronic device 100 performs a step of determining at least one voice command corresponding to the playback speed of the recorded movie during the recording process of determining whether to perform the recording function (step S201), and the movie playback speed adjustment mode The group 130 will continuously record the original recorded movie according to the normal speed, and the database creating module 140 will establish a database to record the received related information corresponding to at least one voice command.

FIG. 4 is a schematic diagram showing an example of using a database to record related information corresponding to at least one voice instruction according to an exemplary embodiment of the invention. Referring to FIG. 4, the database establishing module 140 establishes a database 400 for recording information corresponding to at least one voice command, and the field of the created database 400 includes at least an index field 402 and an instruction type field. 404. Instruction start point field 406 and instruction end point field 408. In the present exemplary embodiment, the database establishing module 140 records the information of the voice commands sequentially received by the electronic device 100 in the data sequence according to the sequence of voice commands received by the electronic device 100. For example, after the user activates the video recording function of the electronic device 100 to record the movie for 10 seconds, the voice command recognition module 120 of the electronic device 100 determines that the voice command receiving module 110 first receives the slow motion speed corresponding to the recorded movie. a slow motion voice command (also referred to as a first voice command), and after receiving the first voice command for 30 seconds, determining that the voice command receiving module 110 subsequently receives a stop voice command corresponding to the normal speed of the recorded movie (also known as the second voice command). Then, after receiving the stop voice command for 10 seconds, the voice command recognition module 120 determines that the voice command receiving module 110 receives the fast-forward voice command corresponding to the fast-speed of the recorded movie (also referred to as the third voice). The command), and 20 seconds after receiving the fast-forward voice command, determines that the voice command receiving module 110 then receives a normal voice command (also referred to as a fourth voice command) corresponding to the normal speed of the recorded movie.

Based on the above, the database establishing module 140 marks the order corresponding to the first voice instruction by "1" according to the order in which the first voice command to the fourth voice command are received by the electronic device 100 (also referred to as the first sequence mark). Recorded in the index field 402 of the first column 410 in the database 400, the "slow motion speed" (also referred to as the first playback speed) corresponding to the first voice command is recorded in the first column 410. In the status field 404, the time point "10 seconds" (also referred to as the first time point) for receiving the first voice command is recorded in the command start point field 408 of the first column 410, and will continue in the first column 410. The time point "30 seconds" (also referred to as the second time point) at which the second voice command is received after a voice command is recorded in the command end field field 408 of the first column 410.

In particular, while the electronic device 100 receives the second voice command corresponding to the recorded movie (ie, the stop voice command corresponding to the normal speed), the database establishing module 140 is also received by the electronic device 100 according to the second voice command. The sequence of the second voice command corresponding to the second voice command "2" (also referred to as the second sequence mark) is recorded in the index field 402 of the second column 420 in the database 400, corresponding to the second voice command. The "normal speed" (also referred to as the second playback speed) is recorded in the command type field 404 of the second column 420, and the time point "30 seconds" (also referred to as the third time) at which the second voice command will be received. The point is recorded in the instruction start point field 406 of the second column 420, and the time point "40 seconds" of the fast-forward voice command received after the second voice command is recorded in the instruction end point of the second column 620. In field 408. Thereafter, the information of the fast-forward voice command and the information of the normal voice command are recorded in the third column 430 and the fourth column 440 of the database 400, respectively, or are similar to the steps of recording the slow-motion voice command and the stop voice command. , will not repeat them here. It should be noted that in this exemplary embodiment, the user turns off the recording function after the video recording function is started to record the movie for 70 seconds. Therefore, the database creating module 140 records the time point "70 seconds" in the fourth. Column 440 is in the instruction end field 408.

FIG. 5 is a schematic diagram showing an example of adjusting the playback speed of a recorded movie segment according to an exemplary embodiment of the invention. Referring to FIG. 4 and FIG. 5 simultaneously, FIG. 5 illustrates the original recorded movie 502 recorded according to the normal speed and the recorded movie 504 re-encoded according to the content recorded in the database 400. In the present exemplary embodiment, the movie playback speed adjustment module 130 is based on the first time point (ie, "10 seconds") and the destination field of the start point field 406 recorded in the first column 410 of the database 400. The second time point of 408 (ie, "30 seconds") divides the recorded movie 502 into a first recorded movie segment 502-1 corresponding to the first voice instruction (ie, a slow motion voice command), and is recorded in the database 400 according to the record. The third time point of the start point field 406 in the second column 420 (ie, "30 seconds") and the fourth time point of the end point field 408 (ie, "40 seconds") divide the recorded movie into corresponding The second recorded movie segment 502-2 of the second voice command (ie, the stop voice command), and so on, divides the recorded movie into a third recorded movie segment 502 corresponding to the third voice command and the fourth voice command, respectively. 3 and the fourth recorded movie fragment 502-4. Next, the movie playback speed adjustment module 130 adjusts the normal speed of the first recorded movie segment 502-1 to a slow motion speed according to the slow motion speed of the command type field 404 recorded in the first column 410 of the database 400. Maintaining the normal speed of the second recorded movie fragment 502-2 according to the normal speed of the command type field 404 recorded in the second column 420 of the database 400, according to the instructions recorded in the third column 430 of the database 400 The fast forward speed of the type field 404 adjusts the normal speed of the third recorded movie clip 502-3 to the fast forward speed, and according to the normal speed of the command type field 404 recorded in the fourth column 440 of the database 400. The normal speed of the fourth recorded movie segment 502-4 is maintained. Therefore, the re-encoded recorded movie 504 has a first recorded movie piece 504-1 played at a slow motion speed and a third recorded movie piece 504-3 played at a fast forward speed and the adjusted total length of the movie is 80 seconds.

In summary, the method for adjusting the movie playback speed and the electronic device thereof according to the present invention receive a voice command corresponding to various playback speeds and switch the video mode according to the voice commands to provide dynamics during the recording of the movie. The video settings are changed to instantly generate a movie having different playback speed segments that the user desires to present, so that the user can conveniently set the playback speed of the movie segment to be presented. Based on this, the efficiency of film production is effectively improved and the user's operation experience is more convenient.

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‧‧‧Electronic devices
102‧‧‧Storage device
104‧‧‧Processor
110‧‧‧Voice command receiving module
120‧‧‧Voice Command Identification Module
130‧‧‧Video playback speed adjustment module
140‧‧‧Database building module
400‧‧‧Database
402‧‧‧ Index field
404‧‧‧Command Type Field
406‧‧‧ Command start point field
408‧‧‧End point field
410‧‧‧first column
420‧‧‧second column
430‧‧‧ third column
440‧‧‧ fourth column
502‧‧‧ Original recorded video
504‧‧‧Recoded recorded video
502-1~502-4, 504-1~504-4‧‧‧The first recorded video clip ~ the fourth recorded video clip
S201, S203‧‧‧ steps

FIG. 1 is a block diagram of an electronic device according to an exemplary embodiment of the invention. 2 is a flow chart of a method for adjusting a movie playback speed according to an embodiment of the invention. FIG. 3 is a block diagram of an electronic device according to another exemplary embodiment of the present invention. FIG. 4 is a schematic diagram showing an example of using a database to record related information corresponding to at least one voice instruction according to an exemplary embodiment of the invention. FIG. 5 is a schematic diagram showing an example of adjusting a playback speed of a recorded movie segment according to an exemplary embodiment of the invention.

S201, S203‧‧‧ steps

Claims (10)

A film playback speed adjustment method is used for an electronic device having a video recording function, and the film playback speed adjustment method includes: determining whether the electronic device receives a corresponding recorded video during the recording process of the recording function. At least one voice command of the playback speed; and if the electronic device receives the at least one voice command, switching the recording mode of the recorded movie from a first recording mode to a second recording mode, wherein the recorded movie corresponds to the first The first recorded movie segment of a recording mode is used for playing at a first playing speed, and the second recorded movie segment corresponding to the second recording mode of the recorded movie is used for playing at a second playing speed, and the first playing The speed is different from the second playback speed. The film playback speed adjustment method according to claim 1, wherein the first playback speed is broadcasted as one of a normal speed, a fast forward speed, and a slow motion speed, and the second playback speed is broadcasted as the One of a normal speed, the fast forward speed, and the slow motion speed, wherein the at least one voice command includes a normal speed voice command corresponding to the normal speed, a fast forward voice command corresponding to the fast forward speed, and corresponding Slow motion speed of a slow motion voice command. The film playback speed adjustment method of claim 2, wherein the step of switching the recording mode of the recorded movie from the first recording mode to the second recording mode comprises: according to the corresponding corresponding to the first recording mode The first recorded movie segment is recorded at the first playback speed, and the second recorded movie segment is recorded according to the second playback speed corresponding to the second recording mode. The video playback speed adjustment method of claim 2, wherein the step of switching the recording mode of the recorded movie from the first recording mode to the second recording mode further comprises: recording the recording according to the normal speed a library; a database for recording information corresponding to at least one voice command, wherein the field of the database includes at least an index field, an instruction type field, an instruction start field, and an instruction a first sequence mark corresponding to a first voice command of the at least one voice command is recorded in the index field according to the sequence of the at least one voice command being received by the electronic device, a first playing speed corresponding to the first voice command is recorded in the command type field, and a first time point of receiving the first voice command is recorded in the command start point field, and the receiving is continued And a second time point of another at least one voice command received after the first voice command is recorded in the end point field of the command; and according to the other at least one voice And causing, by the electronic device, a second sequence mark corresponding to a second voice command of the at least one voice command to be recorded in the index field, where the second voice command corresponds to a second playback speed is recorded in the command type field, and a third time point of receiving the second voice command is recorded in the command start point field, and the receiving is continued after the second voice command A fourth time point of the received at least one voice command is recorded in the end point field of the command. The method for adjusting a movie playback speed according to claim 4, further comprising: according to the first time point of the start point field recorded in the database and the second time point of the end point field Recording the movie into the first recorded movie segment corresponding to the first voice instruction, and according to the third time point recorded in the starting point field of the database and the fourth time point of the ending field Recording the movie into the second recorded movie segment corresponding to the second voice instruction; adjusting the normal speed of the first recorded movie segment to the first playback speed recorded in the command type field; and The normal speed of the second recorded movie clip is adjusted to the second playback speed recorded in the command type field. An electronic device comprising: a storage device for storing a plurality of modules; and a processor coupled to the storage device for loading and executing the modules stored in the storage device, the modules comprising: a voice command receiving module; a voice command recognition module, determining whether a voice command corresponding to a playback speed of a recorded movie is received from the voice command receiving module during a recording process of performing a video function; and a movie a playback speed adjustment module, configured to switch the recording mode of the recorded movie from a first recording mode to a second recording mode when the voice command receiving module receives the at least one voice command, where the recorded movie is in the recording The first recorded movie segment corresponding to the first recording mode is used to play at a first playing speed, and the second recorded movie segment corresponding to the second recording mode in the recorded movie is used to play at a second playing speed, and the The first playback speed is different from the second playback speed. The electronic device of claim 6, wherein the first playback speed is broadcasted as one of a normal speed, a fast forward speed, and a slow motion speed, and the second playback speed is broadcasted as the normal speed, One of the fast forward speed and the slow motion speed, wherein the at least one voice command includes a normal speed voice command corresponding to the normal speed, a fast forward voice command corresponding to the fast forward speed, and a corresponding slow motion speed A slow motion voice command. The electronic device of claim 7, wherein the movie playback speed adjustment module records the first recorded movie segment according to the first playback speed corresponding to the first recording mode, and according to the corresponding second recording mode. The second recorded speed records the second recorded movie clip. The electronic device of claim 7, wherein the modules further comprise a database creation module, wherein the video playback speed adjustment module records the recorded video according to the normal speed, wherein the database establishes a mode The group establishes a database for recording information corresponding to at least one voice command, and the field of the database includes at least an index field, an instruction type field, an instruction start point field, and an instruction end point. a field in which the database creation module records a first sequence mark corresponding to a first voice command in the at least one voice command according to the sequence in which the at least one voice command is received by the electronic device. In the index field, a first playing speed corresponding to the first voice command is recorded in the command type field, and a first time point of receiving the first voice command is recorded in the command start point column. a second time point of the other at least one voice command received after the first voice command is recorded in the end point of the command, wherein the database is built The module records a second sequence mark corresponding to a second one of the at least one voice command in the index field according to another sequence in which the at least one voice command is received by the electronic device, Recording a second playback speed corresponding to the second voice command in the command type field, and recording a third time point of receiving the second voice command in the command start field, and And receiving a fourth time point of another at least one voice command received after the second voice command is recorded in the command end field. The electronic device of claim 9, wherein the movie playback speed adjustment module is based on the first time point of the start point field recorded in the database and the second time of the end point field Pointing the recorded movie into the first recorded movie segment corresponding to the first voice instruction, and according to the third time point of the starting point field recorded in the database and the fourth time of the ending field Pointing the recorded movie into the second recorded movie segment corresponding to the second voice instruction, wherein the movie playback speed adjustment module adjusts the normal speed of the first recorded movie segment to be recorded in the instruction type field. The first playing speed, wherein the movie playing speed adjusting module adjusts the normal speed of the second recorded movie clip to the second playing speed recorded in the command type field.