CN117376648A - Progress bar time updating method, device and storage medium - Google Patents
Progress bar time updating method, device and storage medium Download PDFInfo
- Publication number
- CN117376648A CN117376648A CN202210753726.7A CN202210753726A CN117376648A CN 117376648 A CN117376648 A CN 117376648A CN 202210753726 A CN202210753726 A CN 202210753726A CN 117376648 A CN117376648 A CN 117376648A
- Authority
- CN
- China
- Prior art keywords
- frame
- time
- target
- progress bar
- video
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 50
- 230000015654 memory Effects 0.000 claims description 14
- 238000004590 computer program Methods 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 13
- 230000006870 function Effects 0.000 description 10
- 230000008569 process Effects 0.000 description 10
- 238000004891 communication Methods 0.000 description 7
- 102100037812 Medium-wave-sensitive opsin 1 Human genes 0.000 description 6
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000005538 encapsulation Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000012369 In process control Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 210000004544 dc2 Anatomy 0.000 description 4
- 238000004190 ion pair chromatography Methods 0.000 description 4
- 230000003190 augmentative effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000000802 evaporation-induced self-assembly Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
- H04N21/47217—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for controlling playback functions for recorded or on-demand content, e.g. using progress bars, mode or play-point indicators or bookmarks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
- H04N21/845—Structuring of content, e.g. decomposing content into time segments
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/91—Television signal processing therefor
- H04N5/915—Television signal processing therefor for field- or frame-skip recording or reproducing
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Human Computer Interaction (AREA)
- Television Signal Processing For Recording (AREA)
- Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Abstract
The application discloses a method, a device and a storage medium for updating time of a progress bar, which relate to the technical field of video monitoring and can improve the time updating frequency of the progress bar. The method comprises the following steps: acquiring a target video sequence; the target video sequence comprises: an I frame and at least one P frame associated with the I frame; determining an absolute time of the I frame and a time interval between the I frame and the target P frame; the absolute time of the I frame is the actual shooting time of the video picture corresponding to the I frame; the target P frame is any one of at least one P frame; determining an absolute time of the target P frame based on an absolute time of the I frame, a time interval between the I frame and the target P frame; the absolute time of the target P frame is the actual shooting time of the video picture corresponding to the target P frame; updating the current playing time of the playback progress bar based on the absolute time of the I frame and the absolute time of the target P frame; the playback progress bar is used to display time information of the currently played back video frame.
Description
Technical Field
The present disclosure relates to the field of video monitoring technologies, and in particular, to a method and apparatus for updating a progress bar time, and a storage medium.
Background
In the field of video monitoring, existing video recorder devices (for example, digital hard disk recorders, network hard disk recorders, and the like) have functions of playing back locally stored video in addition to functions of supporting access preview, video storage, and the like for an accessed video camera. The video playback interface comprises a progress bar for displaying the length information of the current video file and the time information of the current video frame displayed by the return access interface in the playback process.
In the playback process, the actual recording time of the I frames is usually used to update the time on the progress bar, but for most video recording devices, the default frame rate is 25 frames per second, and in the video stream data, 50P frames are located between every two I frames, that is, an I frame will appear every 2 seconds in the video recording device during the playback process of the video stream data, then the time on the progress bar will be updated every 2 seconds, and the update frequency is slower, so that the currently played back video frame does not correspond to the time on the progress bar.
Disclosure of Invention
The application provides a method, a device and a storage medium for updating time of a progress bar, which can improve the time updating frequency on the progress bar.
In a first aspect, an application provides a method for updating a progress bar time, including: acquiring a target video sequence; the target video sequence comprises: an I frame and at least one P frame associated with the I frame; determining an absolute time of the I frame and a time interval between the I frame and the target P frame; the absolute time of the I frame is the actual shooting time of the video picture corresponding to the I frame; the target P frame is any one of at least one P frame; determining an absolute time of the target P frame based on an absolute time of the I frame, a time interval between the I frame and the target P frame; the absolute time of the target P frame is the actual shooting time of the video picture corresponding to the target P frame; updating the current playing time of the playback progress bar based on the absolute time of the I frame and the absolute time of the target P frame; the playback progress bar is used to display time information of the currently played back video frame.
It can be understood that, according to the technical scheme provided by the application, firstly, the absolute time of an I frame in a target video sequence and the time interval between the I frame and a target P frame are determined, and then, the absolute time of the target P frame is determined according to the absolute time of the I frame and the time interval between the I frame and the target P frame; finally, the current playing time of the playback progress bar is updated according to the absolute time of the I frame and the absolute time of the target P frame. In this way, compared with the method for updating the current playing time of the playback progress bar according to the absolute time of the I frame in the prior art, the method for updating the current playing time of the playback progress bar based on the absolute time of the I frame and the absolute time of the P frame in the embodiment of the invention effectively improves the updating frequency of the playback progress bar, so that the currently played video frame corresponds to the current playing time on the progress bar.
In one possible implementation manner, the determining the time interval between the I frame and the target P frame includes: acquiring a time stamp of an I frame and a time stamp of a target P frame; the time stamp of the I-frame is used to represent the time offset of the I-frame compared to the reference time; the time stamp of the target P frame is used to represent the time offset of the target P frame compared to the reference time; the time interval between the I frame and the target P frame is determined according to the time stamp of the I frame and the time stamp of the target P frame.
In another possible implementation manner, determining the time interval between the I frame and the target P frame according to the relative timestamp of the I frame and the relative timestamp of the target P frame includes: in the case that the time stamp of the P frame is greater than the time stamp of the I frame, a time interval between the I frame and the target P frame is determined from the time stamp of the I frame and the time stamp of the target P frame.
In another possible implementation manner, determining the time interval between the I frame and the target P frame includes: acquiring the frame number of an I frame, the frame number of a target P frame and the frame time interval of a target video sequence; the frame time interval of the target video sequence is used for representing the time interval between two adjacent video frames in the target video sequence; the time interval between the I frame and the target P frame is determined according to the frame number of the I frame, the frame number of the target P frame and the frame time interval of the target video sequence.
In another possible implementation manner, determining the time interval between the I frame and the target P frame according to the frame number of the I frame, the frame number of the target P frame, and the frame time interval of the target video sequence includes: determining a frame number difference between the frame number of the I frame and the frame number of the target P frame; the time interval between the I frame and the target P frame is determined from the product of the frame number difference and the frame time interval of the target video sequence.
In another possible implementation manner, in a case where the minimum time unit on the playback progress bar is milliseconds, updating the current playing time of the playback progress bar based on the absolute time of the I frame and the absolute time of the target P frame includes: and updating the current playing time of the playback progress bar to milliseconds according to the absolute time of the I frame and the absolute time of the P frame.
In a second aspect, the application provides a device for updating a time of a progress bar, including: the acquisition module is used for acquiring a target video sequence; the target video sequence comprises: an I frame and at least one P frame associated with the I frame; a determining module for determining an absolute time of the I frame and a time interval between the I frame and the target P frame; the absolute time of the I frame is the actual shooting time of the video picture corresponding to the I frame; the target P frame is any one of at least one P frame; the determining module is further used for determining the absolute time of the target P frame based on the absolute time of the I frame and the time interval between the I frame and the target P frame; the absolute time of the target P frame is the actual shooting time of the video picture corresponding to the target P frame; the updating module is used for updating the current playing time of the playback progress bar based on the absolute time of the I frame and the absolute time of the target P frame; the playback progress bar is used to display time information of the currently played back video frame.
In one possible implementation, the obtaining module is further configured to obtain a timestamp of the I frame and a timestamp of the target P frame; the time stamp of the I-frame is used to represent the time offset of the I-frame compared to the reference time; the time stamp of the target P frame is used to represent the time offset of the target P frame compared to the reference time; the determining module is specifically configured to determine a time interval between the I frame and the target P frame according to the time stamp of the I frame and the time stamp of the target P frame.
In another possible implementation manner, the determining module is specifically configured to determine, when the timestamp of the P frame is greater than the timestamp of the I frame, a time interval between the I frame and the target P frame according to the timestamp of the I frame and the timestamp of the target P frame.
In another possible implementation manner, the acquiring module is further configured to acquire a frame number of the I frame, a frame number of the target P frame, and a frame time interval of the target video sequence; the frame time interval of the target video sequence is used for representing the time interval between two adjacent video frames in the target video sequence; the determining module is specifically configured to determine a time interval between the I frame and the target P frame according to the frame number of the I frame, the frame number of the target P frame, and the frame time interval of the target video sequence.
In another possible implementation manner, the determining module is specifically configured to determine a frame number difference between a frame number of the I frame and a frame number of the target P frame; determining a time interval between the I frame and the target P frame according to the product of the frame number difference and the frame time interval of the target video sequence; and under the condition that the minimum time unit on the playback progress bar is millisecond, the updating module is specifically used for updating the current playing time of the playback progress bar to millisecond according to the absolute time of the I frame and the absolute time of the P frame.
In another possible implementation manner, in the case that the minimum time unit on the playback progress bar is milliseconds, the updating module is specifically configured to update the current playing time of the playback progress bar to milliseconds according to the absolute time of the I frame and the absolute time of the P frame.
In a third aspect, the present application provides a progress bar time updating apparatus, including: one or more processors; one or more memories; wherein the one or more memories are configured to store computer program code comprising computer instructions that, when executed by the one or more processors, cause the progress bar time updating apparatus to perform any of the progress bar time updating methods provided in the first aspect described above.
In a fourth aspect, the present application provides a computer-readable storage medium storing computer-executable instructions that, when executed on a computer, cause the computer to perform any one of the progress bar time updating methods provided in the first aspect above.
For a detailed description of the second to fourth aspects and various implementations thereof in this application, reference may be made to the detailed description of the first aspect and various implementations thereof. The advantages of the second to fourth aspects and their various implementations may be referred to for analysis of the advantages of the first aspect and its various implementations, and will not be described here in detail.
These and other aspects of the present application will be more readily apparent from the following description.
Drawings
Fig. 1 is a schematic diagram of an implementation environment related to a progress bar time update method according to an embodiment of the present application;
fig. 2 is a second schematic implementation environment related to a progress bar time updating method according to an embodiment of the present application;
fig. 3 is a schematic diagram of a video sequence according to an embodiment of the present application;
fig. 4 is a schematic diagram of a PS packet according to an embodiment of the present application;
FIG. 5 is a schematic diagram of a playback interface provided by an embodiment of the present application;
fig. 6 is a schematic diagram of an implementation environment related to a progress bar time update method according to an embodiment of the present application;
fig. 7 is a flowchart of a method for updating a progress bar time according to an embodiment of the present application;
fig. 8 is a schematic diagram ii of a video sequence according to an embodiment of the present application;
fig. 9 is a schematic diagram III of a video sequence according to an embodiment of the present application;
fig. 10 is a schematic diagram fourth of a video sequence according to an embodiment of the present application;
FIG. 11 is a schematic diagram of a playback progress bar according to an embodiment of the present application;
fig. 12 is a schematic structural diagram of a device for updating time of a progress bar according to an embodiment of the present application;
Fig. 13 is a second schematic structural diagram of a device for updating time of a progress bar according to an embodiment of the present application.
Detailed Description
The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone.
The terms "first" and "second" and the like in the description and in the drawings are used for distinguishing between different objects or for distinguishing between different processes of the same object and not for describing a particular sequential order of objects.
Furthermore, references to the terms "comprising" and "having" and any variations thereof in the description of the present application are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed but may optionally include other steps or elements not listed or inherent to such process, method, article, or apparatus.
It should be noted that, in the embodiments of the present application, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "for example" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.
In the description of the present application, unless otherwise indicated, the meaning of "a plurality" means two or more.
In order to facilitate understanding of the technical solutions of the present application, the terms referred to in the present application are first described in the following.
1. Digital video recorders (digital video recorder, DVR), which are a type of video recording device, are used with analog cameras. The main working mode of DVR is to access analog video and audio signals and to record video and audio through hard disk. The heart of a DVR is in hard disk video, so a DVR is also called a hard disk recorder.
The DVR can integrate a camera, a mouse, a remote controller, a remote terminal device and the like to form a complete monitoring system, so that the functions of long-time video recording, remote monitoring, remote control, playback and backup of audio and video signal data are realized.
2. Network hard disk video recorders (network video recorder, NVR), which are a type of video recording equipment, are used in combination with network cameras or video encoders to record digital video transmitted over a network.
The most important function of NVR is to receive the digital video code stream transmitted by IPC (network video camera) equipment through a network, store and manage the digital video code stream, and therefore realize the advantage of a distributed architecture brought by networking. Through the NVR, a plurality of network cameras can be simultaneously viewed, browsed, played back, managed, and stored.
3. The network CAMERA (IP CAMERA, IPC) is a new generation CAMERA produced by combining a traditional CAMERA and network technology, and can transmit video images to the other end of the earth through the network, and a remote browser can monitor the video images without any professional software, so long as a standard network browser (such as Microsoft IE or Netscape) is used. The IPC generally consists of a lens, an image sensor, a sound sensor, a signal processor, an a/D converter, a coding chip, a main control chip, a network, a control interface, and the like.
4. Program stream or Program Stream (PS) encapsulation, MPEG2-PS is an encapsulation container for multiplexing digital audio, video, etc. PS packaging is carried out on the basic code stream output by the encoder, so that a PS stream is obtained; wherein the PS stream is composed of PS packets.
5. The elementary streams (packetized elementary strea, PES) of packets, the packets formed by the elementary streams being referred to as PES packets, are one type of data structure used to convey the elementary streams.
6. Program stream map, (program stream map, PSM), PSM provides a description of the original streams in a program stream and their interrelationships. PSM is a PES packet.
7. A group of pictures (GOP), which is a group of consecutive pictures, is composed of one I frame and several P frames, and is a basic unit of access for video image encoders and decoders.
Where the I-frames are intra-coded frames (also called key frames) and the P-frames are forward predicted frames (forward reference frames). Briefly, an I frame is a complete picture, while a P frame records changes relative to an I frame. Without an I frame, a P frame cannot be decoded.
In the h.264 compression standard I frames, P frames are used to represent transmitted video pictures. The encoder encodes a plurality of images to produce a segment-by-segment GOP, and the decoder reads the segment-by-segment GOP for decoding and then reads the picture for rendering and displaying when playing.
When there is little motion change, a small number of GOP sequences may be generated, one GOP sequence may be long, and since there is little motion change, representing little change in the content of a picture, one I frame, and a plurality of P frames may be encoded. When the motion varies much, multiple GOP sequences may be generated, each of which is shorter, e.g., may contain one I frame and a small number of P frames.
When a picture changes significantly from a previous picture and cannot be generated with reference to a previous frame, we end the previous GOP group and start the next GOP group.
8. Video frames, video is a seemingly connected image consisting of one individual picture, where each picture is called a video frame. To ensure continuity and fluency, the number of frames per second of video is fixed, called the frame rate, for example: 25 frames/S, 30 frames/S, 50 frames/S, etc.
9. The timestamp is a relative time value (the relative time value represents a time offset relative to a reference time) belonging to each video frame in the bitstream package. The real meaning of the time stamp is that the amount of change in the time stamp (i.e., the frame interval) of each video frame, and thus, the reference time of the time stamp (i.e., from what time to begin to accumulate) is not limited. Normally, the time stamp trend is uniformly increasing. The difference in the time stamps of two adjacent video frames indicates the duration of the previous video frame.
Further, the time stamp has a maximum value, and when the time stamp reaches the maximum value, it is uniformly accumulated from the reference time (e.g., 0).
10. Absolute time, i.e., system time, is time in units of year, month, day, and second. In the embodiment of the application, the absolute time of one video frame is used to represent the actual shooting time of the video picture corresponding to the video frame.
The foregoing is a description of some concepts related to the embodiments of the present application, and is not repeated herein below.
As described in the background art, in the field of video monitoring, in order to enable easy transmission and storage of video data, the video data is generally encoded at a transmitting end (e.g., a camera device) of a video, and the encoded video data is transmitted to a receiving end (e.g., a video recording device) of the video. And after receiving the coded video data, the video receiving terminal performs PS encapsulation on the coded video stream to obtain a PS stream, and stores the PS stream in a hard disk. In the PS encapsulation process, the time information of the I frame and the P frame is also encapsulated in the corresponding PS packet. Wherein the time information of the I frame includes: absolute time of the I frame and timestamp of the I frame; the time information of the P frame includes: timestamp of P-frame.
In the playback process, a PS stream corresponding to a video to be played back needs to be obtained from a hard disk, decoded, a decoded video stream is obtained, and the decoded video stream is played back. In the prior art, the current playing time on the playback progress bar is generally updated with the absolute time corresponding to the currently played video frame, but since only the I frame has absolute time and the P frame has no absolute time, the time on the playback progress bar is generally updated with the absolute time of the I frame.
The technical problem existing in the prior art is that: for most cameras, an I-frame will appear every 2 seconds, and then the time on the playback progress bar will be updated every 2 seconds, which is slow, resulting in the video frame currently being played back not corresponding to the time on the progress bar.
Aiming at the technical problems, the application provides a progress bar time updating method, which is characterized in that: in the playback process, firstly, determining the absolute time of an I frame in a target video sequence and the time interval between the I frame and a target P frame, and further, determining the absolute time of the target P frame according to the absolute time of the I frame and the time interval between the I frame and the target P frame; finally, the current playing time of the playback progress bar is updated according to the absolute time of the I frame and the absolute time of the target P frame. In this way, compared with the method for updating the current playing time of the playback progress bar according to the absolute time of the I frame in the prior art, the method for updating the current playing time of the playback progress bar based on the absolute time of the I frame and the absolute time of the P frame in the embodiment of the invention effectively improves the updating frequency of the playback progress bar, so that the currently played video frame corresponds to the current playing time on the progress bar.
The implementation of the examples of the present application will be described in detail below with reference to the accompanying drawings.
Referring to fig. 1, a schematic diagram of an implementation environment related to a method for updating a progress bar time according to an embodiment of the present application is shown. As shown in fig. 1, the implementation environment may include: an image pickup apparatus 10, a video recording apparatus 20, and a terminal apparatus 30.
An image pickup apparatus 10 for picking up video.
Illustratively, the image capturing apparatus 10 may be: analog cameras or IPCs.
In some embodiments, as shown in fig. 2, the image capturing apparatus 10 includes: the video encoder 11 is configured to receive original video data captured by the image capturing apparatus 10, and encode the original video data using a specific compression standard (for example, h.264 compression standard) to obtain an encoded video stream.
Wherein the encoded video stream may be: one or more video sequence GOPs. Each segment of video sequence GOP includes: one I frame and at least one P frame. As shown in fig. 3, the I-frame is the first video frame of the GOP, including the complete video picture, and can be independently encoded; at least one P frame is located after the I frame, and only changes from the previous video frame are included in the P frame in order to forward predict the encoded frame, and the encoding needs to be completed depending on the previous video frame.
In some embodiments, the image capturing apparatus 10 is further configured to transmit the encoded video stream to the video recording apparatus 20.
Video recording device 20 for receiving and storing the encoded video stream. In some embodiments, the video recording device 20 is further configured to decode the encoded video stream to obtain one or more video sequence GOPs and play back the one or more video sequence GOPs.
For example, video recording device 20 may be a digital video recorder DVR device, or a network hard disk recorder NVR device.
In some embodiments, video recording device 20, upon receiving the encoded video stream, PS encapsulates the encoded video stream to obtain a PS stream, and stores the PS stream in a hard disk.
In the PS encapsulation process, the video recording device 20 determines time information corresponding to each video frame (including I-frames and P-frames) in the encoded video stream, and encapsulates the time information corresponding to each video frame in PS packets. Illustratively, the time information corresponding to the I-frame includes an absolute time of the I-frame and a timestamp of the I-frame; the time information corresponding to the P frame includes a time stamp of the P frame.
Wherein the PS stream is composed of a plurality of PS GOPs; one PS GOP is made up of one or more PS packets, each PS packet corresponding to information of one or more video frames in the GOP. Illustratively, the structure of PS packets is shown in fig. 4, where the structure of the first PS packet in the PS GOP (i.e., the PS packet corresponding to the I frame) may be shown in fig. 4 (a), and the structure of the other PS packets in the PS GOP (i.e., the PS packet corresponding to the P frame) may be shown in fig. 4 (b).
Wherein, PSH is packet head of PS packet, mainly comprising system time information. The PES is an elementary stream of the encoded video stream, i.e. the encoded video stream is packetized to obtain one or more PES. PSM is a special PES that is used to place the global time (or absolute time) for the video frame. PSM occurs only in I frames, i.e., only I frames have absolute time, and P frames have no absolute time.
In some embodiments, after the video recording device 20 receives the playback instruction, the video recording device 20 is further configured to obtain a PS stream corresponding to the playback instruction from the hard disk, and decode the PS stream to obtain a decoded video stream. For example, the above playback instruction may be issued by the terminal device 30.
In some embodiments, as shown in fig. 2, video recording device 20 includes a video decoder 21, where video decoder 21 is configured to decode the PS stream using a particular compression standard (e.g., h.264 compression standard) to obtain a decoded video stream.
In some embodiments, the decoded video stream comprises one or more video sequence GOPs, each video sequence GOP consisting of one I frame and at least one P frame.
In some embodiments, the video decoder may parse out the time information of the I frame and the time information of the P frame in the video sequence GOP, and the frame number of the I frame and the frame number of the P frame.
In some embodiments, video recording device 20 is also configured to transmit the decoded video stream to terminal device 30.
A terminal device 30 for playing back the decoded video stream.
In some embodiments, as shown in fig. 5, the terminal device 30 includes a display screen whose playback interface includes a first region and a second region; wherein the first region is for displaying video pictures (video frames) of the decoded video stream and the second region includes a playback progress bar for reflecting time information corresponding to the video pictures (video frames) displayed in the first region.
In some embodiments, the terminal device 30 is further configured to obtain time information of each video frame in the GOP of the video sequence, and update the current playing time of the playback progress bar according to the time information of each video frame.
By way of example, the terminal device 30 may be an electronic device with play function, such as a cell phone, tablet, desktop, laptop, handheld computer, notebook, ultra-mobile personal computer (UMPC), netbook, and cellular phone, personal digital assistant (personal digital assistant, PDA), augmented reality (augmented reality, AR) \virtual reality (VR) device, etc. The specific form of the terminal device 30 is not particularly limited in this disclosure.
Alternatively, the video recording device 20 and the terminal device 30 in fig. 1 may be two separate devices, or the video recording device 20 and the terminal device 30 may be the same device, that is, the video recording device 20 or the corresponding function and the terminal device 30 or the corresponding function may be integrated on the same device.
Communication may be performed between the image capturing apparatus 10 and the video recording apparatus 20, communication may be performed between the video recording apparatus 20 and the terminal apparatus 30, for example, the video recording apparatus 20 may receive an encoded video stream from the image capturing apparatus 10, and the terminal apparatus 30 may receive a decoded video stream from the video recording apparatus 20. In one example, one or more communication media may be included between the image capturing apparatus 10 and the video recording apparatus 20, and between the video recording apparatus 20 and the terminal apparatus 30, which may include a router, a switch, or a base station, among other devices.
Specifically, as shown in fig. 6, the video recording apparatus 20 receives the encoded video stream transmitted from the image pickup apparatus 10, PS-encapsulates the encoded video stream to obtain a PS stream, and stores the PS stream in the hard disk. When a user needs to view video recordings of a certain period of time, a playback instruction can be sent to the video recording device 20 through the terminal device 30; when the video recording device 20 receives a playback instruction, acquiring a PS stream corresponding to a video recording to be played back from the hard disk, and decoding the PS stream to obtain a decoded video stream; the video recording apparatus 20 transmits the decoded video stream to the terminal apparatus 30; the terminal device 30 displays the decoded video stream and updates the current play time on the playback progress bar according to the time corresponding to the decoded video stream.
The following specifically describes a method for updating the time of a progress bar provided in the embodiment of the present application.
The progress bar time updating method provided by the embodiment of the application can be executed by the video recording device shown in fig. 1. As shown in fig. 7, the method includes the steps of:
s101, acquiring a target video sequence.
Wherein the target video sequence comprises: an I-frame and at least one P-frame associated with the I-frame. The I-frame is the first frame in the target video sequence, with at least one P-frame following the I-frame. Both I and P frames are used to represent video pictures.
In some embodiments, the target video sequence is any one of video sequences in a video to be played back. For example, if the video to be played back includes 3 video sequences, respectively: and the video recording equipment acquires the video sequence A, the video sequence B and the video sequence C by decoding the PS stream corresponding to the recorded video.
It will be appreciated that for convenience of storage, the video recording device, after receiving the encoded video stream output by the video encoder, PS encapsulates the encoded video stream to generate a PS stream, which is stored in the hard disk. Further, during playback, it is necessary to acquire a PS stream of video to be played back from the hard disk and decode the PS stream into the form of one or more video sequence GOPs.
S102, determining the absolute time of the I frame and the time interval between the I frame and the target P frame.
The absolute time of the I frame is the actual shooting time of the video picture corresponding to the I frame. For example, if the video frame corresponding to the I frame is photographed at 2022, 5, 17, 12, 0 minutes, 0 seconds, the absolute time of the I frame is 2022, 5, 17, 12, 0 minutes, 0 seconds.
In some embodiments, the target P frame is any one of the at least one P frame.
In some embodiments, the time interval between an I frame and a target P frame refers to: the time between the I frame and the target P frame. Embodiments of the present application provide two ways for determining the time interval between an I frame and a target P frame.
Mode one, determining a time interval between an I frame and a target P frame based on a timestamp
Step 1, acquiring a time stamp of an I frame and a time stamp of a target P frame.
Wherein the timestamp of the I-frame is used to represent the time offset of the I-frame compared to the reference time; the time stamp of the target P frame is used to represent the time offset of the target P frame compared to the reference time. Typically, the reference time is fixed (the value of the reference time is not specifically limited in the embodiment of the present application), and therefore, the time offset relative to the reference time can uniquely characterize the time of the video frame, that is, the time stamp of each video frame can uniquely characterize the time of the video frame. Illustratively, the I-frame has a time stamp of 40ms, the first P-frame has a time stamp of 80ms, and the second P-frame has a time stamp of 120ms, which are uniformly accumulated in sequence until the time stamp reaches a maximum.
In some embodiments, the video recording device obtains the timestamp of the I frame by parsing the PS packet corresponding to the I frame; the video recording device obtains the time stamp of the P frame by analyzing the PS packet corresponding to the P frame.
And 2, determining the time interval between the I frame and the target P frame according to the time stamp of the I frame and the time stamp of the target P frame.
In some embodiments, the time interval between the I frame and the target P frame is determined from the difference between the time stamp of the target P frame and the time stamp of the I frame. For example, if the timestamp of the target P frame is T1 and the timestamp of the I frame is T0, the time interval between the I frame and the target P frame satisfies: T1-T0.
For example, as shown in fig. 8, if the timestamp of the I frame is 40ms, the timestamp of the target P frame is 120ms. The time interval between the I frame and the target P frame is: 120ms-40ms = 80ms.
In some embodiments, the step 2 may be implemented as: and under the condition that the time stamp of the target P frame is larger than that of the I frame, determining the time interval between the I frame and the target P frame according to the time stamp of the I frame and the time stamp of the target P frame.
It will be appreciated that in a video sequence, I frames are preceded and P frames are followed and the time stamps are sequentially incremented from front to back, so the time stamp of a P frame should be greater than the time stamp of an I frame. However, the time stamp has a maximum value, and when the time stamp reaches the maximum value, accumulation is continued from 0, and at this time, a case may occur in which the time stamp of the P frame is smaller than the time stamp of the I frame (i.e., a time stamp overflow occurs), in which case the time interval between the I frame and the target P frame cannot be determined from the time stamp of the I frame and the time stamp of the target P frame. For example, as shown in fig. 9, if the maximum value of the time stamp is 200ms, the time stamp of the I frame is 160ms, and the time stamp of the target P frame is 40ms, at this time, the time stamp of the target P frame is smaller than the time stamp of the I frame, and if the time interval between the I frame and the target P frame is obtained according to the difference between the time stamp of the target P frame and the time stamp of the I frame: 40ms-160 ms= -120ms, it is clear that this result is incorrect, and therefore, in case of a timestamp overflow, the time interval between the I-frame and the target P-frame cannot be determined from the timestamp.
Therefore, the method provided in the first mode is only applicable to the case that the timestamp of the target P frame is greater than the timestamp of the I frame.
Mode two, determining a time interval between an I frame and a target P frame based on a frame number
Step 1, acquiring the frame number of an I frame, the frame number of a target P frame and the frame time interval of a target video sequence.
Wherein the frame time interval of the target video sequence is used to represent the time interval between two adjacent video frames in the target video sequence.
In some embodiments, the video recording device obtains the frame number of the I frame by parsing the PS packet corresponding to the I frame; the video recording device obtains the frame number of the P frame by analyzing the PS packet corresponding to the P frame.
And 2, determining the time interval between the I frame and the target P frame according to the frame number of the I frame, the frame number of the target P frame and the frame time interval of the target video sequence.
In some embodiments, the time interval between the I frame and the target P frame is determined from the product of the frame number difference between the frame number of the target P frame and the frame number of the I frame and the frame time interval of the target video sequence. For example, if the frame number of the target P frame is F1, the frame number of the I frame is F0, and the frame time interval of the target video sequence is D, the time interval between the I frame and the target P frame satisfies: (F1-F0) D.
For example, as shown in fig. 10, if the frame number of the I frame is 1, the frame number of the target P frame is 6, and the frame time interval of the target video sequence is 40ms, the time interval between the I frame and the target P frame is: (6-1) 40 ms=200 ms.
It can be understood that the time interval between the I frame and the target P frame is determined based on the frame number difference between the frame number of the I frame and the frame number of the target P frame and the frame time interval of the target video sequence, so that the time interval between the I frame and the target P frame can be accurately determined without overflow of the time stamp.
S103, determining the absolute time of the target P frame based on the absolute time of the I frame and the time interval between the I frame and the target P frame.
The absolute time of the target P frame is the actual shooting time of the video picture corresponding to the target P frame.
In some embodiments, the absolute time of the target P frame is determined from the sum of the absolute time of the I frame and the time interval between the I frame and the target P frame. For example, if the absolute time of the I frame is G0 and the time interval between the I frame and the target P frame is T1-T0, the absolute time of the target P frame satisfies: g0+ (T1-T0). Still another example, if the absolute time of the I frame is G0 and the time interval between the I frame and the target P frame is (F1-F0) ×d, the absolute time of the target P frame satisfies: g0+ (F1-F0) D.
For example, if the absolute time of an I frame is 12 hours 0 minutes 0 seconds, and the time interval between the I frame and the target P frame is 1000 milliseconds (1 second equals 1000 milliseconds), the absolute time of the target P frame is: 12 hours 0 minutes 0 seconds+1 seconds=12 hours 0 minutes 1 seconds.
S104, updating the current playing time of the playback progress bar based on the absolute time of the I frame and the absolute time of the target P frame.
In some embodiments, as shown in fig. 11, the playback progress bar is used to display the length information of the video recording file in which the target video sequence is located, and the time information corresponding to the currently played back video frame.
In some embodiments, the video recording device sends a video picture corresponding to the I frame to the terminal device, so that the video picture corresponding to the I frame is played on the display screen of the terminal device, and at the same time, the video recording device updates the current playing time of the playback progress bar by using the absolute time of the I frame. The video recording device sends the video picture corresponding to the target P frame to the terminal device, so that when the video picture corresponding to the target P frame is played on the display screen of the terminal device, the video recording device updates the current playing time of the playback progress bar by adopting the absolute time of the target P frame.
In some embodiments, where the minimum time unit on the playback progress bar is seconds, the current play time of the playback progress bar is updated to seconds based on the absolute time of the I frame and the absolute time of the target P frame. For example, if the absolute time of the target P frame is 12 point 01 minutes 200 milliseconds, the current playing time of the updated playback progress bar is 12 point 01 minutes.
In some embodiments, where the minimum time unit on the playback progress bar is milliseconds, the current play time of the playback progress bar is updated to milliseconds based on the absolute time of the I frame and the absolute time of the target P frame. Therefore, the time update frequency of the progress bar can be improved, and the time on the progress bar is more accurate. For example, if the absolute time of the target P frame is 12 point 01 minutes 200 milliseconds, the current play time of the updated playback progress bar is 12 point 01 minutes 200 milliseconds.
It can be understood that, according to the technical scheme provided by the embodiment of the application, the absolute time of the I frame in the target video sequence and the time interval between the I frame and the target P frame are determined first, and then, the absolute time of the target P frame is determined according to the absolute time of the I frame and the time interval between the I frame and the target P frame; finally, the current playing time of the playback progress bar is updated according to the absolute time of the I frame and the absolute time of the target P frame. Therefore, compared with the method for updating the current playing time of the playback progress bar according to the absolute time of the I frame in the prior art, the method for updating the current playing time of the playback progress bar based on the absolute time of the I frame and the absolute time of the P frame in the embodiment of the invention effectively improves the updating frequency of the playback progress bar, so that the currently played video frame corresponds to the current playing time on the progress bar.
As shown in fig. 12, an embodiment of the present application provides a progress bar time updating apparatus for executing the progress bar time updating method shown in fig. 7. The progress bar time updating apparatus 300 includes: an acquisition module 301, a determination module 302 and an update module 303.
An acquisition module 301, configured to acquire a target video sequence; the target video sequence comprises: an I-frame and at least one P-frame associated with the I-frame.
A determining module 302, configured to determine an absolute time of the I frame and a time interval between the I frame and the target P frame; the absolute time of the I frame is the actual shooting time of the video picture corresponding to the I frame; the target P frame is any one of the at least one P frame.
The determining module 302 is further configured to determine an absolute time of the target P frame based on an absolute time of the I frame, a time interval between the I frame and the target P frame; the absolute time of the target P frame is the actual shooting time of the video picture corresponding to the target P frame.
An updating module 303, configured to update a current playing time of the playback progress bar based on the absolute time of the I frame and the absolute time of the target P frame; the playback progress bar is used to display time information of the currently played back video frame.
In one possible implementation, the obtaining module 301 is further configured to obtain a timestamp of the I frame and a timestamp of the target P frame; the time stamp of the I-frame is used to represent the time offset of the I-frame compared to the reference time; the time stamp of the target P frame is used to represent the time offset of the target P frame compared to the reference time; the determining module 302 is specifically configured to determine a time interval between the I frame and the target P frame according to the time stamp of the I frame and the time stamp of the target P frame.
In another possible implementation manner, the determining module 302 is specifically configured to determine, in a case where the timestamp of the P frame is greater than the timestamp of the I frame, a time interval between the I frame and the target P frame according to the timestamp of the I frame and the timestamp of the target P frame.
In another possible implementation manner, the obtaining module 301 is further configured to obtain a frame number of the I frame, a frame number of the target P frame, and a frame time interval of the target video sequence; the frame time interval of the target video sequence is used for representing the time interval between two adjacent video frames in the target video sequence; the determining module 302 is specifically configured to determine a time interval between the I frame and the target P frame according to the frame number of the I frame, the frame number of the target P frame, and the frame time interval of the target video sequence.
In another possible implementation manner, the determining module 302 is specifically configured to determine a frame number difference between a frame number of the I frame and a frame number of the target P frame; determining a time interval between the I frame and the target P frame according to the product of the frame number difference and the frame time interval of the target video sequence; and under the condition that the minimum time unit on the playback progress bar is millisecond, the updating module is specifically used for updating the current playing time of the playback progress bar to millisecond according to the absolute time of the I frame and the absolute time of the P frame.
In another possible implementation, in the case that the minimum time unit on the playback progress bar is milliseconds, the updating module 303 is specifically configured to update the current playing time of the playback progress bar to milliseconds according to the absolute time of the I frame and the absolute time of the P frame.
In the case of implementing the functions of the integrated modules in the form of hardware, the embodiment of the application provides another possible structural schematic diagram of the progress bar time updating device involved in the above embodiment. As shown in fig. 13, the progress bar time updating apparatus 400 includes: a processor 402, a communication interface 403, a bus 404. Optionally, the progress bar time updating device may further include a memory 401.
The processor 402 may be any logic block, module, and circuitry that implements or performs the various examples described in connection with the present disclosure. The processor 402 may be a central processing unit, a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various exemplary logic blocks, modules, and circuits described in connection with this disclosure. The processor 402 may also be a combination that implements computing functionality, such as a combination comprising one or more microprocessors, a combination of a DSP and a microprocessor, or the like.
A communication interface 403 for connecting with other devices via a communication network. The communication network may be an ethernet, a radio access network, a wireless local area network (wireless local area networks, WLAN), etc.
The memory 401 may be, but is not limited to, a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (random access memory, RAM) or other type of dynamic storage device that can store information and instructions, or an electrically erasable programmable read-only memory (electrically erasable programmable read-only memory, EEPROM), magnetic disk storage or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.
As a possible implementation, the memory 401 may exist separately from the processor 402, and the memory 401 may be connected to the processor 402 by a bus 404, for storing instructions or program codes. The processor 402, when calling and executing instructions or program codes stored in the memory 401, can implement the progress bar time updating method provided in the embodiment of the present application.
In another possible implementation, the memory 401 may also be integrated with the processor 402.
Bus 404, which may be an extended industry standard architecture (extended industry standard architecture, EISA) bus, or the like. The bus 404 may be classified as an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in fig. 13, but not only one bus or one type of bus.
From the foregoing description of the embodiments, it will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of functional modules is illustrated, and in practical application, the above-described functional allocation may be performed by different functional modules according to needs, i.e. the internal structure of the progress bar time update apparatus is divided into different functional modules, so as to perform all or part of the above-described functions.
Embodiments of the present application also provide a computer-readable storage medium. All or part of the flow in the above method embodiments may be implemented by computer instructions to instruct related hardware, and the program may be stored in the above computer readable storage medium, and the program may include the flow in the above method embodiments when executed. The computer readable storage medium may be any of the foregoing embodiments or memory. The computer readable storage medium may be an external storage device of the progress bar time updating apparatus, for example, a plug-in hard disk provided in the progress bar time updating apparatus, a Smart Media Card (SMC), a Secure Digital (SD) card, a flash card (flash card), or the like. Further, the above-mentioned computer readable storage medium may further include both the internal storage unit and the external storage device of the above-mentioned progress bar time updating apparatus. The computer readable storage medium is used for storing the computer program and other programs and data required by the progress bar time updating device. The above-described computer-readable storage medium may also be used to temporarily store data that has been output or is to be output.
The present application also provides a computer program product comprising a computer program which, when run on a computer, causes the computer to perform any one of the progress bar time updating methods provided in the above embodiments.
Although the present application has been described herein in connection with various embodiments, other variations to the disclosed embodiments can be understood and effected by those skilled in the art in practicing the claimed application, from a review of the figures, the disclosure, and the appended claims. In the claims, the word "Comprising" does not exclude other elements or steps, and the "a" or "an" does not exclude a plurality. A single processor or other unit may fulfill the functions of several items recited in the claims. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.
Although the present application has been described in connection with specific features and embodiments thereof, it will be apparent that various modifications and combinations can be made without departing from the spirit and scope of the application. Accordingly, the specification and drawings are merely exemplary illustrations of the present application as defined in the appended claims and are considered to cover any and all modifications, variations, combinations, or equivalents that fall within the scope of the present application. It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims and the equivalents thereof, the present application is intended to cover such modifications and variations.
The foregoing is merely a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A progress bar time updating method, comprising:
acquiring a target video sequence; the target video sequence comprises: an I frame and at least one P frame associated with the I frame;
determining an absolute time of the I frame and a time interval between the I frame and a target P frame; the absolute time of the I frame is the actual shooting time of the video picture corresponding to the I frame; the target P-frame is any one of the at least one P-frame;
determining an absolute time of a target P-frame based on an absolute time of the I-frame, a time interval between the I-frame and the target P-frame; the absolute time of the target P frame is the actual shooting time of the video picture corresponding to the target P frame;
updating the current playing time of a playback progress bar based on the absolute time of the I frame and the absolute time of the target P frame; the playback progress bar is used for displaying time information of a current playback video frame.
2. The method of claim 1, wherein the determining the time interval between the I frame and the target P frame comprises:
acquiring the time stamp of the I frame and the time stamp of the target P frame; the time stamp of the I frame is used for representing the time offset of the I frame compared with a reference time; the timestamp of the target P frame is used for representing the time offset of the target P frame compared with a reference time;
and determining the time interval between the I frame and the target P frame according to the time stamp of the I frame and the time stamp of the target P frame.
3. The method of claim 2, wherein the determining the time interval between the I frame and the target P frame based on the relative time stamp of the I frame and the relative time stamp of the target P frame comprises:
and under the condition that the time stamp of the P frame is larger than that of the I frame, determining the time interval between the I frame and the target P frame according to the time stamp of the I frame and the time stamp of the target P frame.
4. The method of claim 1, wherein the determining the time interval between the I frame and the target P frame comprises:
acquiring the frame number of the I frame, the frame number of the target P frame and the frame time interval of the target video sequence; the frame time interval of the target video sequence is used for representing the time interval between two adjacent video frames in the target video sequence;
And determining the time interval between the I frame and the target P frame according to the frame number of the I frame, the frame number of the target P frame and the frame time interval of the target video sequence.
5. The method of claim 4, wherein the determining the time interval between the I frame and the target P frame based on the frame number of the I frame, the frame number of the target P frame, and the frame time interval of the target video sequence comprises:
determining a frame number difference between the frame number of the I frame and the frame number of the target P frame;
and determining the time interval between the I frame and the target P frame according to the product of the frame number difference and the frame time interval of the target video sequence.
6. The method of claim 1, wherein, in the case where the minimum time unit on the playback progress bar is milliseconds, the updating the current play time of the playback progress bar based on the absolute time of the I frame and the absolute time of the target P frame comprises:
and updating the current playing time of the playback progress bar to millisecond according to the absolute time of the I frame and the absolute time of the P frame.
7. A progress bar time updating apparatus, comprising:
The acquisition module is used for acquiring a target video sequence; the target video sequence comprises: an I frame and at least one P frame associated with the I frame;
a determining module, configured to determine an absolute time of the I frame and a time interval between the I frame and a target P frame; the absolute time of the I frame is the actual shooting time of the video picture corresponding to the I frame; the target P-frame is any one of the at least one P-frame;
the determining module is further configured to determine an absolute time of the target P frame based on an absolute time of the I frame, a time interval between the I frame and the target P frame; the absolute time of the target P frame is the actual shooting time of the video picture corresponding to the target P frame;
the updating module is used for updating the current playing time of the playback progress bar based on the absolute time of the I frame and the absolute time of the target P frame; the playback progress bar is used for displaying time information of a current playback video frame.
8. The apparatus of claim 7, wherein the device comprises a plurality of sensors,
the acquisition module is further configured to acquire a timestamp of the I frame and a timestamp of the target P frame; the time stamp of the I frame is used for representing the time offset of the I frame compared with a reference time; the timestamp of the target P frame is used for representing the time offset of the target P frame compared with a reference time; the determining module is specifically configured to determine a time interval between the I frame and the target P frame according to the time stamp of the I frame and the time stamp of the target P frame;
The determining module is specifically configured to determine, when the timestamp of the P frame is greater than the timestamp of the I frame, a time interval between the I frame and the target P frame according to the timestamp of the I frame and the timestamp of the target P frame;
the acquisition module is further configured to acquire a frame number of the I frame, a frame number of the target P frame, and a frame time interval of the target video sequence; the frame time interval of the target video sequence is used for representing the time interval between two adjacent video frames in the target video sequence; the determining module is specifically configured to determine a time interval between the I frame and the target P frame according to the frame number of the I frame, the frame number of the target P frame, and the frame time interval of the target video sequence;
the determining module is specifically configured to determine a frame number difference between a frame number of the I frame and a frame number of the target P frame; determining a time interval between the I frame and the target P frame according to the product of the frame number difference and the frame time interval of the target video sequence;
the updating module is specifically configured to update, when the minimum time unit on the playback progress bar is milliseconds, the current playing time of the playback progress bar to milliseconds according to the absolute time of the I frame and the absolute time of the P frame;
And under the condition that the minimum time unit on the playback progress bar is millisecond, the updating module is specifically configured to update the current playing time of the playback progress bar to millisecond according to the absolute time of the I frame and the absolute time of the P frame.
9. A progress bar time updating apparatus, comprising:
one or more processors;
one or more memories;
wherein the one or more memories are configured to store computer program code comprising computer instructions that, when executed by the one or more processors, perform the progress bar time updating method of any of claims 1 to 6.
10. A computer readable storage medium storing computer executable instructions which, when run on a computer, cause the computer to perform the progress bar time updating method of any of claims 1 to 6.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210753726.7A CN117376648A (en) | 2022-06-29 | 2022-06-29 | Progress bar time updating method, device and storage medium |
| PCT/CN2023/104007 WO2024002264A1 (en) | 2022-06-29 | 2023-06-29 | Video processing device, progress bar time updating method, apparatus, and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210753726.7A CN117376648A (en) | 2022-06-29 | 2022-06-29 | Progress bar time updating method, device and storage medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117376648A true CN117376648A (en) | 2024-01-09 |
Family
ID=89383315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210753726.7A Pending CN117376648A (en) | 2022-06-29 | 2022-06-29 | Progress bar time updating method, device and storage medium |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN117376648A (en) |
| WO (1) | WO2024002264A1 (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9520155B2 (en) * | 2013-12-24 | 2016-12-13 | JBF Interlude 2009 LTD | Methods and systems for seeking to non-key frames |
| CN104994340A (en) * | 2015-06-25 | 2015-10-21 | 广东工业大学 | Precise positioning playback method for audio/video storage mode |
| US10705709B2 (en) * | 2018-03-05 | 2020-07-07 | Qingdao Hisense Media Network Technology Co., Ltd. | Playing media |
| CN108737908B (en) * | 2018-05-21 | 2021-11-30 | 腾讯科技（深圳）有限公司 | Media playing method, device and storage medium |
| CN110809179A (en) * | 2019-10-30 | 2020-02-18 | 烽火通信科技股份有限公司 | Method and system for switching live broadcast time-shifting time axis under HLS protocol |
| CN112788366B (en) * | 2020-12-28 | 2023-03-24 | 杭州海康威视系统技术有限公司 | Video processing method and device |
-
2022
- 2022-06-29 CN CN202210753726.7A patent/CN117376648A/en active Pending
-
2023
- 2023-06-29 WO PCT/CN2023/104007 patent/WO2024002264A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024002264A1 (en) | 2024-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110784718B (en) | Video data encoding method, apparatus, device and storage medium | |
| US7697036B2 (en) | Digital camera for capturing both still images and moving pictures | |
| US8914835B2 (en) | Streaming encoded video data | |
| CN110784740A (en) | Video processing method, device, server and readable storage medium | |
| CN110677672A (en) | Method and system for encoding video with overlays | |
| CA2819674C (en) | Video encoding apparatus, video decoding apparatus, video encoding method, and video decoding method | |
| US7072574B2 (en) | Method and apparatus for recording and playing back moving picture data | |
| CA2910306C (en) | Video encoding apparatus, video decoding apparatus, video encoding method, and video decoding method | |
| CN110430445B (en) | Video synchronous playing method, device, equipment and medium | |
| KR20190005188A (en) | Method and apparatus for generating a composite video stream from a plurality of video segments | |
| CN117376648A (en) | Progress bar time updating method, device and storage medium | |
| JP4081103B2 (en) | Video encoding device | |
| JP2894958B2 (en) | Image decoding method and apparatus | |
| CN109302574B (en) | Method and device for processing video stream | |
| JPH08256332A (en) | Transmission method for information | |
| CN115426501A (en) | Audio and video code stream time calibration method and electronic equipment | |
| CN115550688A (en) | Video code stream processing method, medium, program product and electronic device | |
| CN109547845A (en) | A kind of video marker method and device | |
| CN109982067A (en) | Method for processing video frequency and device | |
| CN117156105A (en) | Key frame transmission method, device and system, electronic equipment and storage medium | |
| JP2001186469A (en) | Intermittent picture recording device and its method | |
| EP2487910B1 (en) | Image coding device and image coding method | |
| CN115914711A (en) | Audio and video playing method, device, equipment, medium and computer program product | |
| TH31419A (en) | Methodology and success for encoding digital video signals. | |
| JP2003009064A (en) | Picture transmission device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |