CN114025199A - Live video editing method, device and system - Google Patents
Live video editing method, device and system Download PDFInfo
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- CN114025199A CN114025199A CN202210020124.0A CN202210020124A CN114025199A CN 114025199 A CN114025199 A CN 114025199A CN 202210020124 A CN202210020124 A CN 202210020124A CN 114025199 A CN114025199 A CN 114025199A
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- 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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
- H04N21/23424—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving splicing one content stream with another content stream, e.g. for inserting or substituting an advertisement
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- 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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/21—Server components or server architectures
- H04N21/218—Source of audio or video content, e.g. local disk arrays
- H04N21/2187—Live feed
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- 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
- H04N21/8456—Structuring of content, e.g. decomposing content into time segments by decomposing the content in the time domain, e.g. in time segments
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Abstract
The embodiment of the invention provides a live video editing method, a live video editing device and a live video editing system, wherein the method comprises the following steps: displaying a time axis corresponding to live video data read from the server when the live video data are played; thumbnails corresponding to the live video data are loaded on the time axis; receiving an operation event aiming at the thumbnail and determining a target thumbnail set; determining that the target thumbnail set is located in a set of clip points on the timeline; sending the clipping point set to the server; and receiving the clipped video data output by the server and obtained according to the clipped point set and the live video data, so that the user can quickly preview the played live video through the thumbnails before the live broadcast is finished, and meanwhile, the user can clip the live video through the thumbnails, the live video clip clipping efficiency of the user is improved, and better use experience of the user is provided.
Description
Technical Field
The invention relates to the technical field of live broadcast, in particular to a live broadcast video editing method, a live broadcast video editing device and a live broadcast video editing system.
Background
With the development of computer technology and network technology, more and more users watching live webcasts are becoming widespread, various live webcasts such as shopping guide live webcasts, game live webcasts, singing live webcasts and the like, and it has become a very common phenomenon that audience users watch live webcasts through various computer devices or mobile devices.
However, in the prior art, when watching a live broadcast, a viewer user cannot clip a video segment in time when watching some favorite video segments to be clipped for storage or sharing to others, but can only wait for the end of the live broadcast to buffer the whole live broadcast video, and then searches for a video segment that is desired to be clipped previously by continuously and heuristically pulling a video progress bar. This process not only takes the viewer user a long time to find the video clip, but also has a very low success rate of finding the desired video clip. In the prior art, although the audience user can clip the desired live video segment, the prior art needs complicated operation steps, wastes time, has low efficiency, and is not beneficial to the use experience of the audience user.
Disclosure of Invention
In view of the above, embodiments of the present invention are proposed to provide a live video clipping method and a corresponding live video clipping system that overcome or at least partly solve the above problems.
In order to solve the above problems, an embodiment of the present invention discloses a live video editing method, which is applied to a Web end, wherein the Web end is connected with a server end, and the method includes:
displaying a time axis corresponding to live video data read from the server when the live video data are played; thumbnails corresponding to the live video data are loaded on the time axis;
receiving an operation event aiming at the thumbnail and determining a target thumbnail set;
determining that the target thumbnail set is located in a set of clip points on the timeline;
sending the clipping point set to the server;
and receiving clip video data which is output by the server and is obtained according to the clip point set and the live video data.
Optionally, the step of displaying a time axis corresponding to the live video data when playing the live video data read from the server includes:
acquiring an index file according to the index file address received from the server;
reading live video data according to the index file;
generating a time axis corresponding to the live video data;
and displaying the time axis when the live video data is played.
Optionally, the live video data comprises at least one slice; the method further comprises the following steps:
acquiring thumbnail address information corresponding to the slice; the thumbnail address information includes a time offset;
calculating a time node corresponding to the slice based on the time offset;
acquiring a thumbnail corresponding to the slice according to the thumbnail address information;
and loading the thumbnail on the time axis according to the time node.
Optionally, the step of receiving an operation event for the thumbnail and determining a target thumbnail set includes:
when a first operation event aiming at the thumbnail is received, determining a first target thumbnail corresponding to the first operation event;
when a second operation event aiming at the thumbnail is received, determining a second target thumbnail corresponding to the second operation event;
and determining a target thumbnail set according to the first target thumbnail and the second target thumbnail.
The embodiment of the invention discloses a live video editing method which is applied to a server side, wherein the server side is connected with a Web side; the method comprises the following steps:
sending live video data to the Web end;
the Web end is used for displaying a time axis corresponding to the live video data when the live video data read from the server end is played; thumbnails corresponding to the live video data are loaded on the time axis; receiving an operation event aiming at the thumbnail and determining a target thumbnail set; determining that the target thumbnail set is located in a set of clip points on the timeline; sending the clipping point set to the server;
receiving a clipping point set sent by the Web end;
obtaining clipped video data according to the clipped point set and the live video data;
sending the clip video data to the Web end;
and the Web end is also used for receiving clip video data which is output by the server end and is obtained according to the clip point set and the live video data.
Optionally, the step of sending live video data to the Web end includes:
generating an index file according to the pre-stored slices;
sending the index file to the Web end;
upon receiving a new slice, updating the index file based on the new slice;
and sending the updated index file to the Web end.
Optionally, when a new slice is received and before the index file is updated based on the new slice, the step of sending the updated index file to the Web end includes:
and periodically inquiring whether a new slice is received or not before reading the live broadcast end identification.
Optionally, the server is connected with a task scheduling mechanism; the task scheduling mechanism comprises a task scheduler and an execution server; the method further comprises the following steps:
generating a thumbnail task aiming at the pre-stored slice or the new slice;
sending the thumbnail task to the task scheduler; the task scheduler is used for sending the thumbnail task to the execution server; the execution server is used for generating a thumbnail according to the thumbnail task and sending the thumbnail to the task scheduler;
and receiving the thumbnail sent by the task scheduler.
Optionally, the server is connected with a task scheduling mechanism; the task scheduling mechanism comprises a task scheduler and an execution server; the step of obtaining clipped video data from the clipped point set and the live video data comprises:
generating a video clipping task according to the clipping point set and the live video data;
sending the clip video task to the task scheduler; the task scheduler is used for sending the video editing task to the execution server; the execution server is used for generating clip video data according to the clip video task and sending the clip video data to the task scheduler;
and receiving the clip video data sent by the task scheduler.
The embodiment of the invention also discloses a live video editing device, which is applied to a Web end, wherein the Web end is connected with a server end, and the device comprises:
the time axis display module is used for displaying the time axis corresponding to the live video data when the live video data read from the server side is played; thumbnails corresponding to the live video data are loaded on the time axis;
the target thumbnail set determining module is used for receiving the operation event aiming at the thumbnail and determining a target thumbnail set;
a clip point set determination module for determining a clip point set of the target thumbnail set on the time axis;
the clipping point sending module is used for sending the clipping point set to the server;
and the clipping video data receiving module is used for receiving the clipping video data which is output by the server and is obtained according to the clipping point set and the live video data.
The embodiment of the invention also discloses a live video editing device which is applied to a server side, wherein the server side is connected with a Web side, and the device comprises:
the live video data sending module is used for sending the live video data to the Web end;
the Web end is used for displaying a time axis corresponding to the live video data when the live video data read from the server end is played; receiving an operation event aiming at the thumbnail and determining a target thumbnail set; determining that the target thumbnail set is located in a set of clip points on the timeline; sending the clipping point set to the server;
the clipping point set receiving module is used for receiving the clipping point set sent by the Web end;
the clipping video data acquisition module is used for acquiring clipping video data according to the clipping point set and the live video data;
the clipping video data sending module is used for sending the clipping video data to the Web end;
and the Web end is also used for receiving clip video data which is output by the server end and is obtained according to the clip point set and the live video data.
The embodiment of the invention also discloses a live video editing system, which comprises a server and a Web end which are connected with each other, wherein the server comprises:
the live video data sending module is used for sending the live video data to the Web end;
the Web end comprises:
the time axis display module is used for displaying the time axis corresponding to the live video data when the live video data read from the server side is played; thumbnails corresponding to the live video data are loaded on the time axis;
the target thumbnail set determining module is used for receiving the operation event aiming at the thumbnail and determining a target thumbnail set;
a clip point set determination module for determining a clip point set of the target thumbnail set on the time axis;
the clipping point sending module is used for sending the clipping point set to the server;
the server side further comprises:
the clipping point set receiving module is used for receiving the clipping point set sent by the Web end;
the clipping video data acquisition module is used for acquiring clipping video data according to the clipping point set and the live video data;
the clipping video data sending module is used for sending the clipping video data to the Web end;
the Web end further comprises:
and the clipping video data receiving module is used for receiving the clipping video data which is output by the server and is obtained according to the clipping point set and the live video data.
The embodiment of the invention also discloses an electronic device, which comprises:
a processor, a memory and a computer program stored on and executable on the processor, the computer program, when executed by the processor, implementing the steps of a live video clip method as described above.
The embodiment of the invention also discloses a computer readable storage medium, which comprises:
the computer readable storage medium has stored thereon a computer program which, when executed by a processor, implements the steps of a live video clip method as described above.
In the embodiment of the invention, when the live video data read from the server side is played, a time axis corresponding to the live video data is displayed; thumbnails corresponding to the live video data are loaded on the time axis; receiving an operation event aiming at the thumbnail and determining a target thumbnail set; determining that the target thumbnail set is located in a set of clip points on the timeline; sending the clipping point set to the server; and receiving the clipped video data output by the server and obtained according to the clipped point set and the live video data, so that the user can quickly preview the played live video through the thumbnails before the live broadcast is finished, and meanwhile, the user can quickly clip the live video through the thumbnails, the live video clip clipping efficiency of the user is improved, and better use experience of the user is provided.
Drawings
FIG. 1 is a flow chart of the steps of a live video editing method embodiment of the present invention;
FIG. 2 is a flow diagram of the steps of another live video clip method embodiment of the present invention;
FIG. 3 is a flow diagram of the steps of another live video clip method embodiment of the present invention;
FIG. 4 is a flow diagram of the steps of another live video clip method embodiment of the present invention;
FIG. 5 is a flow diagram of a live video editing method embodiment of the present invention;
FIG. 6 is a flow diagram of a live video editing method embodiment of the present invention;
FIG. 7 is a block diagram of a live video editing apparatus according to an embodiment of the present invention;
FIG. 8 is a block diagram of another live video editing apparatus embodiment of the present invention;
FIG. 9 is a block diagram of a live video clip system embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
At present, in the prior art in the technical field, when a viewer user watches a certain favorite video segment and wants to clip the video segment for storage or sharing the video segment to other people in the live broadcasting process, there is no method for clipping the video segment in time.
In contrast, the embodiment of the present application provides a live video editing method, which is implemented by using a bytecode (Webassembly) technology executable by a browser end to decode and play video and audio, and by adding a thumbnail on a time axis, a user can edit live video in a live playing process.
Referring to fig. 1, a flowchart illustrating steps of an embodiment of a live video editing method according to the present invention is shown, where the method is applied to a Web side, and the connection between the Web side and a server side may specifically include the following steps:
101, displaying a time axis corresponding to live video data read from the server when the live video data is played; and thumbnails corresponding to the live video data are loaded on the time axis.
In the embodiment of the present invention, a streaming media transmission protocol may be adopted, for example: RTMP protocol, RTSP protocol, HLS protocol, HTTP-FLV protocol, etc., which are not limited in the embodiments of the present invention. After receiving the live video data, the embodiment of the invention can display the time axis corresponding to the live video while playing the live video, and the time axis can be loaded with the thumbnail corresponding to the live video, thereby facilitating the preview of the live video through the thumbnail by a user.
And 102, receiving an operation event aiming at the thumbnail and determining a target thumbnail set.
In the embodiment of the invention, the operation event can be the marking or selection of the thumbnail, and a user can preview the live video through the thumbnail by operating on the Web end and can mark or select the thumbnail at the same time so as to determine the target thumbnail set.
In the embodiment of the invention, the thumbnail can be a preview of a corresponding time point on the time axis, and after the target thumbnail set is determined, the corresponding time point on the time axis can be determined through the target thumbnail set, so that the clip point set on the time axis can be determined.
And 104, sending the clipping point set to the server.
In the embodiment of the invention, the Web end can send the obtained clipping point set to the server end through a streaming media transmission protocol.
And 105, receiving clip video data which is output by the server and is obtained according to the clip point set and the live video data.
In the embodiment of the invention, the Web end can receive the clipped video obtained by clipping according to the clipping point set and the live video data by the server end through the streaming media transmission protocol. The clip point may be a time node set on a time axis of live video data, and the clip video may be a video obtained by clipping the live video data according to a time period included in the time node set.
In the embodiment of the invention, when the live video data read from the server side is played, a time axis corresponding to the live video data is displayed; thumbnails corresponding to the live video data are loaded on the time axis; receiving an operation event aiming at the thumbnail and determining a target thumbnail set; determining that the target thumbnail set is located in a set of clip points on the timeline; sending the clipping point set to the server; and receiving the clipped video data output by the server and obtained according to the clipped point set and the live video data, so that the user can quickly preview the played live video through the thumbnails before the live broadcast is finished, and meanwhile, the user can clip the live video through the thumbnails, the live video clip clipping efficiency of the user is improved, and better use experience of the user is provided.
Referring to fig. 2, a flowchart illustrating steps of another embodiment of a live video editing method according to the present invention is shown, where the method is applied to a Web side, and the connection between the Web side and a server side may specifically include the following steps:
In the embodiment of the invention, after receiving the live video data, the time axis corresponding to the live video can be displayed while the live video is played, and the thumbnail corresponding to the live video can be loaded on the time axis, so that a user can preview the live video through the thumbnail conveniently.
In an alternative embodiment of the present invention, step 201 may comprise:
and a substep S2011 of obtaining the index file according to the index file address received from the server.
And a substep S2012 of reading the live video data according to the index file.
In the embodiment of the invention, the Web end can receive the index file address sent by the server end, inquire and acquire the index file through the index file address, and search and acquire the corresponding TS file through the index file. The TS file may be a small segment of the live video, and each index file may correspond to at least one TS file of the live video data. Therefore, in the embodiment of the present invention, all corresponding TS files may be obtained through the index file, so as to read live video data. In an embodiment of the present invention, the index file may be an m3u8 file.
And a substep S2013 of generating a time axis corresponding to the live video data.
And a substep S2014 of displaying the time axis when the live video data is played.
In the embodiment of the invention, after the live video data is read, a corresponding time axis can be generated. When the live video data is played, the time axis and the live video can be correspondingly displayed.
The live video data includes at least one slice.
And 204, acquiring the thumbnail corresponding to the slice according to the thumbnail address information.
In the embodiment of the present invention, the filename address of the thumbnail stored in the object storage may be formed by the time of the start of live broadcast, the time offset of the slice and the interval time of thumbnail generation, the Web end may receive the thumbnail address information corresponding to the thumbnail, and specifically may include the time offset, the Web end may calculate the time node corresponding to the slice according to the time offset, and calculate the filename address of the thumbnail according to a preset rule, and the Web end may query and acquire the corresponding thumbnail in the object storage according to the filename address of the thumbnail. In the embodiment of the present invention, after the thumbnail corresponding to the slice is acquired in the object storage, the acquired thumbnail may be loaded to the corresponding time node on the time axis. Because all thumbnails are stored in the same directory in the object storage, and a large part of the filename addresses of the thumbnails are repeated, the embodiment of the invention can reduce the payload of a request body by calculating the filename addresses of the thumbnails through the time offset and acquiring the thumbnails through the filename addresses of the thumbnails, thereby improving the pushing efficiency.
In an example, when a live broadcast starts, the filename address of the corresponding thumbnail stored in the object storage is host + UUID-00000.jpg, then the filename address of the thumbnail stored in the object storage corresponding to the 15 th second after the start of the live broadcast is host + UUID-15000.jpg, therefore, when the time offset of receiving a slice at the Web end is 15 seconds, the slice can be calculated to be the 15 th second slice after the start of the live broadcast, the filename address of the thumbnail corresponding to the slice can be calculated to be host + UUID-15000.jpg, and the thumbnail corresponding to the slice can be acquired in the object storage through the filename address. The Web side can load the acquired thumbnail at the 15 th second on the time axis.
And step 206, receiving the operation event aiming at the thumbnail and determining a target thumbnail set.
In an alternative embodiment of the present invention, step 206 may comprise:
in sub-step S2061, when the first operation event for the thumbnail is received, the first target thumbnail corresponding to the first operation event is determined.
In sub-step S2062, when the second operation event for the thumbnail is received, the second target thumbnail corresponding to the second operation event is determined.
And a substep S2063 of determining a target thumbnail set according to the first target thumbnail and the second target thumbnail.
In the embodiment of the invention, the operation event can be the marking or selection of the thumbnail, and a user can mark or select the thumbnail displayed on a time axis through a Web end so as to determine a first target thumbnail; the user can mark or select another thumbnail displayed on the time axis through the Web end, so as to determine the second target thumbnail, and the first target thumbnail and the second target thumbnail can be determined as a target thumbnail set.
And step 208, sending the clipping point set to the server.
In the embodiment of the invention, the index file is obtained according to the index file address received from the server; reading live video data according to the index file; generating a time axis corresponding to the live video data; displaying the time axis when the live video data is played; acquiring thumbnail address information corresponding to the slice; the thumbnail address information includes a time offset; calculating a time node corresponding to the slice based on the time offset; acquiring a thumbnail corresponding to the slice according to the thumbnail address information; loading the thumbnail on the time axis according to the time node; when a first operation event aiming at the thumbnail is received, determining a first target thumbnail corresponding to the first operation event; when a second operation event aiming at the thumbnail is received, determining a second target thumbnail corresponding to the second operation event; determining a target thumbnail set according to the first target thumbnail and the second target thumbnail; determining that the target thumbnail set is located in a set of clip points on the timeline; sending the clipping point set to the server; and receiving the clipped video data output by the server and obtained according to the clipped point set and the live video data, so that the user can quickly preview the played live video through the thumbnails before the live broadcast is finished, and meanwhile, the user can clip the live video through the thumbnails, the live video clip clipping efficiency of the user is improved, and better use experience of the user is provided.
Referring to fig. 3, a flow chart showing steps of another embodiment of a live video editing method of the present invention is shown, wherein the method is applied to a server, and the server is connected with a Web; the method comprises the following steps:
In the embodiment of the invention, the streaming media processing can be carried out on the live video by using a C + + language by using a WebAssembly technology, and a JavaScript interface is added into a compiled wap related file. The wap related file is deployed in a website release server, and can be downloaded and compiled in the server when a Web end needs to use, and a streaming media context and a timeline can be created by initializing a streaming media processing module and using a corresponding JavaScript interface, wherein the streaming media context can be a parameter of video streaming media, such as resolution and the like.
The Web end is used for displaying a time axis corresponding to the live video data when the live video data read from the server end is played; thumbnails corresponding to the live video data are loaded on the time axis; receiving an operation event aiming at the thumbnail and determining a target thumbnail set; determining that the target thumbnail set is located in a set of clip points on the timeline; and sending the clipping point set to the server.
And 303, obtaining clipped video data according to the clipped point set and the live video data.
And step 304, sending the clip video data to the Web terminal.
In the embodiment of the present invention, the Web end is further configured to receive clip video data, which is output by the server and is obtained according to the clip point set and the live video data.
In the embodiment of the invention, the server can establish Websocket connection with the Web end, can receive the clipping point set sent by the Web end, and can be used as an in point of the clipping video and an out point of the clipping video according to the time node of the positioning of the clipping point set in the live video. The server can clip the video data of the time period contained between the time nodes, can store the video data in the form of video copies, and sends the clipped video data to the Web end.
In the embodiment of the invention, live video data is sent to the Web end; receiving a clipping point set sent by the Web end; obtaining clipped video data according to the clipped point set and the live video data; the clipped video data are sent to the Web end, so that the user can quickly preview the played live video through the thumbnails before the live broadcast is finished, and meanwhile, the user can clip the live video through the thumbnails, the live video clip clipping efficiency of the user is improved, and better use experience of the user is provided.
Referring to fig. 4, a flow chart showing steps of another embodiment of a live video editing method of the present invention is shown, wherein the method is applied to a server, and the server is connected with a Web; in an optional embodiment of the present invention, the server is connected to a task scheduling mechanism; the task scheduling mechanism comprises a task scheduler and an execution server; the method comprises the following steps:
In an alternative embodiment of the present invention, step 401 may include:
in sub-step S41, an index file is generated from the previously stored slices.
And a substep S42, sending the index file to the Web end.
In the embodiment of the present invention, in order to meet the use requirement of the webassociation technology, the index file may be an m3u8 file. Upon receipt of a live video task at the server, on the basis of the received original m3u8 file of the live video, the following fields may be added after the # EXTM3U field:
| field(s) | Description of the invention |
| #EXT-X-MEISHE-LIVE:true | Whether it is live broadcast |
| #EXT-X-MEISHE-MEDIA-TYPE:video | Media type |
| #EXT-X-MEISHE-DURATION:16376160 | Total duration of current m3u8 in unit of milliseconds |
| #EXT-X-MEISHE-WIDTH:1920 | Width of picture |
| #EXT-X-MEISHE-HEIGHT:1080 | Height of picture |
| #EXT-X-MEISHE-FRAMERATE:25/1 | Frame rate |
| #EXT-X-MEISHE-DISPLAYROTATION:0 | Rotation angle |
| #EXT-X-MEISHE-GOPSIZE:25 | Continuous group size |
| #EXT-X-MEISHE-SAMPLERATE:44100 | Audio sample rate |
| #EXT-X-MEISHE-CHANNELCOUNT:2 | Number of audio tracks |
| #EXT-X-MEISHE-HOST:https://xxxx.com/live | Host for accessing slices |
| #EXT-X-MEISHE-ASSETUUID:f7e78794-05ad | UUID corresponding to m3u8 |
Thereby generating a new m3u8 file that satisfies the use requirements of the Webassembly technology.
In the embodiment of the invention, the server side can upload the generated new m3u8 file to the object storage, and after the Web server and the Web server establish the Websocket connection, the address of the new m3u8 file is pushed to the Web server. The Web end can acquire a new m3u8 file according to the address of the new m3u8 file, and query the TS file for the server end through the new m3u8 file, and the server end can send the TS file to the Web end, namely send live video data, wherein the TS file can be a slice of live video.
And a sub-step S43 of periodically inquiring whether a new slice is received before reading the live broadcast end identifier.
In the embodiment of the present invention, before reading the end identifier of live broadcasting, the server may periodically query whether to receive a slice newly added for live broadcasting, for example, it may be set that whether to receive a new slice every 1 second.
Sub-step S44, upon receiving a new slice, updates the index file based on the new slice.
And a substep S45, sending the updated index file to the Web end.
In the embodiment of the invention, the generated slices can be stored in the server, and the server can generate the index file corresponding to the slices according to the slices stored in the server in advance and send the index file to the Web end. The new slices continuously added due to the live broadcast can be stored in the server, and the server can update the index file based on the new slices and can send the updated index file to the Web end.
In the embodiment of the present invention, the task scheduling mechanism may schedule the tasks into different queues according to the time of the received task and the type of the task.
In the embodiment of the invention, the server side can query the pre-stored slice corresponding to the original m3u8 file by reading the original m3u8 file, and generate the thumbnail task according to the pre-stored slice. The server can also query a new slice corresponding to the new m3u8 file by reading the new m3u8 file, and generate a thumbnail task for the new slice. After each thumbnail task is completed, the server side can push the generated thumbnail to the Web side through the Websocket in real time, and after the Web side receives the thumbnail, the thumbnail can be displayed at a position corresponding to a time axis.
Referring to fig. 5, which shows a flowchart of an embodiment of the present invention, a server may record an m3u8 file, add a field to the file, and convert the file into a new m3u8 file that meets the use requirement of the webassociation technology. The server can read each slice file and judge whether the received slice has initiated the thumbnail task in the live broadcasting process. If so, continuing to read the received slice, otherwise, initiating a thumbnail task aiming at the slice, and sending the thumbnail task to the task scheduler.
In the embodiment of the invention, the execution server can send the heartbeat information to the task scheduler at regular time and can also send the address information of the execution server at the same time, and the task scheduler can register the execution server according to the received address information of the execution server and can record the heartbeat time when the heartbeat information is received. The task scheduler can periodically query two continuous heartbeat time intervals, can judge whether the heartbeat time interval exceeds a preset interval time threshold value, and if the heartbeat time interval exceeds the preset interval time threshold value, the execution server can be considered to be lost, and the corresponding execution server can be removed from the available server list.
In one example: after the first execution server sends the first heartbeat information to the task scheduler, second information is sent to the task scheduler after 2 seconds, and the preset interval time threshold is 1 second, so that the time interval of sending the heartbeat information by the first execution server exceeds the preset interval time threshold, and the task scheduler removes the first execution server from an available server list, namely, does not send the task to the first execution server.
In the embodiment of the invention, the task scheduler can send the thumbnail task to the execution server in the available server list to execute the task, the execution server can generate the thumbnail according to the thumbnail task and send the thumbnail to the task scheduler, and the task scheduler can send the generated thumbnail to the server, so that a large number of thumbnail tasks are prevented from being accumulated in a short time, and the working efficiency of the system is improved.
The Web end is used for displaying a time axis corresponding to the live video data when the live video data read from the server end is played; thumbnails corresponding to the live video data are loaded on the time axis; receiving an operation event aiming at the thumbnail and determining a target thumbnail set; determining that the target thumbnail set is located in a set of clip points on the timeline; sending the clipping point set to the server;
In the embodiment of the present invention, a clip point may be a time node set on a time axis of live video data, and a video clip task may be performed on the live video data according to a time period included in the time node set.
And step 408, receiving the clip video data sent by the task scheduler.
In the embodiment of the invention, the execution server can send the heartbeat information to the task scheduler at regular time and can also send the address information of the execution server at the same time, and the task scheduler can register the execution server according to the received address information of the execution server and can record the heartbeat time when the heartbeat information is received. The task scheduler can periodically query two continuous heartbeat time intervals, can judge whether the heartbeat time interval exceeds a preset interval time threshold value, and if the heartbeat time interval exceeds the preset interval time threshold value, the execution server can be considered to be lost, and the corresponding execution server can be removed from the available server list.
In the embodiment of the invention, the task scheduler can arrange the video clipping tasks to the execution servers in the available server list to execute the tasks, the execution servers can generate the clipping videos according to the video clipping tasks and send the clipping videos to the task scheduler, and the task scheduler can send the generated clipping videos to the server side, so that a large number of video clipping tasks are prevented from being accumulated in a short time, and the working efficiency of the system is improved.
And step 409, sending the clip video data to the Web end.
And the Web end is also used for receiving clip video data which is output by the server end and is obtained according to the clip point set and the live video data.
In order to enable those skilled in the art to better understand the embodiment of the present invention, the following describes the workflow of the embodiment of the present invention by an example:
referring to fig. 6, which is a flowchart illustrating an alternative embodiment of the present invention, a Web server 4001 may create a websocket connection with a server 4002, and the server 4002 may send a thumbnail task for live video data to a task scheduling system 4003, where the task scheduling system 4003 may include a task scheduler cluster 4004 and an execution server cluster 4005. The execution server can send the heartbeat information to the task scheduler at regular time, and simultaneously can also send the address information of the execution server, and the task scheduler can register the execution server according to the received address information of the execution server and can record the heartbeat time of the received heartbeat information. The task scheduler can periodically query two continuous heartbeat time intervals, can judge whether the heartbeat time interval exceeds a preset interval time threshold value, and if the heartbeat time interval exceeds the preset interval time threshold value, the execution server can be considered to be lost, and the corresponding execution server can be removed from the available server list. The task scheduler may send the thumbnail task to an available execution server, which may call back the results to the task scheduler, i.e., the generated thumbnail. The task scheduler may transmit the generated thumbnail to the server 4002. The server 4002 can transmit the m3u8 address corresponding to the thumbnail and the slice thumbnail update information to the Web 4001. The Web terminal 4001 may acquire the thumbnail, select a clip point set according to the thumbnail, and send the clip task to the server terminal 4002, the server terminal 4002 may send the clip task to the task scheduler, the task scheduler may send the clip task to an available execution server, the execution server may execute the clip task and send the generated clip video to the task scheduler, and the task scheduler may send the clip video to the server terminal 4002 and then the server terminal 4002 sends the clip video to the Web terminal 4001.
The embodiment of the invention sends the live video data to the Web end; generating a thumbnail task aiming at the pre-stored slice or the new slice; sending the thumbnail task to the task scheduler; the task scheduler is used for sending the thumbnail task to the execution server; the execution server is used for generating a thumbnail according to the thumbnail task and sending the thumbnail to the task scheduler; generating a video clipping task according to the clipping point set and the live video data; sending the clip video task to the task scheduler; the task scheduler is used for sending the video editing task to the execution server; the execution server is used for generating clip video data according to the clip video task and sending the clip video data to the task scheduler; receiving clip video data sent by the task scheduler; the clipped video data are sent to the Web end, so that the user can quickly preview the played live video through the thumbnails before the live broadcast is finished, and meanwhile, the user can clip the live video through the thumbnails, the live video clip clipping efficiency of the user is improved, and better use experience of the user is provided.
It should be noted that, for simplicity of description, the method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the illustrated order of acts, as some steps may occur in other orders or concurrently in accordance with the embodiments of the present invention. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred and that no particular act is required to implement the invention.
Referring to fig. 7, a block diagram of a live video editing apparatus according to an embodiment of the present invention is shown, and is applied to a Web side, where the Web side is connected to a server side, and the live video editing apparatus specifically includes the following modules:
a time axis display module 501, configured to display a time axis corresponding to live video data read from the server when the live video data is played; and thumbnails corresponding to the live video data are loaded on the time axis.
A target thumbnail set determination module 502, configured to receive an operation event for the thumbnail and determine a target thumbnail set.
A clip point set determination module 503 for determining a clip point set on the time axis of the target thumbnail set.
A clipping point sending module 504, configured to send the clipping point set to the server.
A clip video data receiving module 505, configured to receive clip video data that is output by the server and obtained according to the clip point set and the live video data.
In a preferred embodiment of the present invention, the timeline presentation module 501 may further include:
the index file obtaining submodule 5011 is configured to obtain an index file according to the index file address received from the server.
And the live video data reading submodule 5012 is configured to read live video data according to the index file.
The time axis generation submodule 5013 is configured to generate a time axis corresponding to the live video data.
And a time axis display submodule 5014, configured to display the time axis when the live video data is played.
In a preferred embodiment of the present invention, the timeline presentation module 501 may further include:
the thumbnail address information acquisition submodule 5015 is configured to acquire thumbnail address information corresponding to the slice; the thumbnail address information includes a time offset.
The time node calculation submodule 5016 is configured to calculate a time node corresponding to the slice based on the time offset.
And the thumbnail obtaining submodule 5017 is configured to obtain a thumbnail corresponding to the slice according to the thumbnail address information.
The time axis loading submodule 5018 is configured to load the thumbnail onto the time axis according to the time node.
In a preferred embodiment of the present invention, the target thumbnail set determining module 502 may further include:
the first target thumbnail determination sub-module 5021 is configured to determine, when a first operation event for the thumbnail is received, a first target thumbnail corresponding to the first operation event.
The second target thumbnail determination sub-module 5022 is configured to determine, when a second operation event for the thumbnail is received, a second target thumbnail corresponding to the second operation event.
The target thumbnail set determining sub-module 5023 is configured to determine a target thumbnail set according to the first target thumbnail and the second target thumbnail.
Referring to fig. 8, a block diagram of a live video editing apparatus according to an embodiment of the present invention is shown, and is applied to a server, where the server is connected to a Web server, and the live video editing apparatus specifically includes the following modules:
and the live video data sending module 601 is configured to send live video data to the Web end.
The Web end is used for displaying a time axis corresponding to the live video data when the live video data read from the server end is played; thumbnails corresponding to the live video data are loaded on the time axis; receiving an operation event aiming at the thumbnail and determining a target thumbnail set; determining that the target thumbnail set is located in a set of clip points on the timeline; and sending the clipping point set to the server.
A clipping point set receiving module 602, configured to receive the clipping point set sent by the Web end.
A clipping video data obtaining module 603, configured to obtain clipping video data according to the clipping point set and the live video data.
A clip video data sending module 604, configured to send the clip video data to the Web end.
And the Web end is also used for receiving clip video data which is output by the server end and is obtained according to the clip point set and the live video data.
In a preferred embodiment of the present invention, the live video data sending module 601 may include:
the index file generation sub-module 6011 is configured to generate an index file according to a slice stored in advance.
An index file sending submodule 6012, configured to send the index file to the Web end.
A new slice query submodule 6013, configured to periodically query whether a new slice is received before reading the live broadcast end identifier.
An index file updating submodule 6014, configured to, when a new slice is received, update the index file based on the new slice.
And an updated index file sending submodule 6015, configured to send the updated index file to the Web end.
In a preferred embodiment of the embodiments of the present invention, the apparatus may further include:
a thumbnail task generating module 605, configured to generate a thumbnail task for the pre-stored slice or the new slice.
A thumbnail task sending module 606, configured to send the thumbnail task to the task scheduler; the task scheduler is used for sending the thumbnail task to the execution server; and the execution server is used for generating a thumbnail according to the thumbnail task and sending the thumbnail to the task scheduler.
And a thumbnail receiving module 607, configured to receive the thumbnail sent by the task scheduler.
In a preferred embodiment of the embodiments of the present invention, the apparatus may further include:
and a video clipping task generating module 608, configured to generate a video clipping task according to the set of clipping points and the live video data.
A clip video task sending module 609, configured to send the clip video task to the task scheduler; the task scheduler is used for sending the video editing task to the execution server; and the execution server is used for generating clip video data according to the clip video task and sending the clip video data to the task scheduler.
Referring to fig. 9, a block diagram of a live video clip system according to an embodiment of the present invention is shown, including a server and a Web, where the server is connected to each other, and the server includes:
and a live video data sending module 701, configured to send live video data to the Web end.
The Web end comprises:
a time axis display module 702, configured to display a time axis corresponding to live video data read from the server when the live video data is played; and thumbnails corresponding to the live video data are loaded on the time axis.
A target thumbnail set determining module 703, configured to receive an operation event for the thumbnail and determine a target thumbnail set.
A clip point set determination module 704 for determining a set of clip points on the timeline for which the target thumbnail set is located.
A clipping point sending module 705, configured to send the clipping point set to the server.
The server side further comprises:
a clipping point set receiving module 706, configured to receive the clipping point set sent by the Web end.
And a clipping video data obtaining module 707, configured to obtain clipping video data according to the clipping point set and the live video data.
A clip video data sending module 708, configured to send the clip video data to the Web end.
The Web end further comprises:
a clip video data receiving module 709, configured to receive clip video data output by the server and obtained according to the clip point set and the live video data.
For the device embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.
An embodiment of the present invention further provides an electronic device, including: the live video editing method comprises a processor, a memory and a computer program which is stored in the memory and can run on the processor, wherein when the computer program is executed by the processor, each process of the live video editing method embodiment is realized, the same technical effect can be achieved, and in order to avoid repetition, the description is omitted here.
The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when being executed by a processor, the computer program implements each process of the above live video editing method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing terminal to cause a series of operational steps to be performed on the computer or other programmable terminal to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The live video editing method, the live video editing device and the live video editing system provided by the invention are described in detail, specific examples are applied in the text to explain the principle and the implementation mode of the invention, and the description of the above embodiments is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A live video editing method is applied to a Web end, wherein the Web end is connected with a server end, and the method comprises the following steps:
displaying a time axis corresponding to live video data read from the server when the live video data are played; thumbnails corresponding to the live video data are loaded on the time axis;
receiving an operation event aiming at the thumbnail and determining a target thumbnail set;
determining that the target thumbnail set is located in a set of clip points on the timeline;
sending the clipping point set to the server;
and receiving clip video data which is output by the server and is obtained according to the clip point set and the live video data.
2. The method according to claim 1, wherein the step of displaying a time axis corresponding to live video data read from the server while playing the live video data comprises:
acquiring an index file according to the index file address received from the server;
reading live video data according to the index file;
generating a time axis corresponding to the live video data;
and displaying the time axis when the live video data is played.
3. The method of claim 2, wherein the live video data comprises at least one slice; the method further comprises the following steps:
acquiring thumbnail address information corresponding to the slice; the thumbnail address information includes a time offset;
calculating a time node corresponding to the slice based on the time offset;
acquiring a thumbnail corresponding to the slice according to the thumbnail address information;
and loading the thumbnail on the time axis according to the time node.
4. The method of claim 1, wherein receiving the operational event for the thumbnail, the step of determining a target thumbnail set comprises:
when a first operation event aiming at the thumbnail is received, determining a first target thumbnail corresponding to the first operation event;
when a second operation event aiming at the thumbnail is received, determining a second target thumbnail corresponding to the second operation event;
and determining a target thumbnail set according to the first target thumbnail and the second target thumbnail.
5. A live video editing method is characterized by being applied to a server side, wherein the server side is connected with a Web side; the method comprises the following steps:
sending live video data to the Web end;
the Web end is used for displaying a time axis corresponding to the live video data when the live video data read from the server end is played; thumbnails corresponding to the live video data are loaded on the time axis; receiving an operation event aiming at the thumbnail and determining a target thumbnail set; determining that the target thumbnail set is located in a set of clip points on the timeline; sending the clipping point set to the server;
receiving a clipping point set sent by the Web end;
obtaining clipped video data according to the clipped point set and the live video data;
sending the clip video data to the Web end;
and the Web end is also used for receiving clip video data which is output by the server end and is obtained according to the clip point set and the live video data.
6. A live video editing device, applied to a Web end, wherein the Web end is connected with a server end, the device comprises:
the time axis display module is used for displaying the time axis corresponding to the live video data when the live video data read from the server side is played; thumbnails corresponding to the live video data are loaded on the time axis;
the target thumbnail set determining module is used for receiving the operation event aiming at the thumbnail and determining a target thumbnail set;
a clip point set determination module for determining a clip point set of the target thumbnail set on the time axis;
the clipping point sending module is used for sending the clipping point set to the server;
and the clipping video data receiving module is used for receiving the clipping video data which is output by the server and is obtained according to the clipping point set and the live video data.
7. A live video editing apparatus, applied to a server, the server being connected to a Web side, the apparatus comprising:
the live video data sending module is used for sending the live video data to the Web end;
the Web end is used for displaying a time axis corresponding to the live video data when the live video data read from the server end is played; thumbnails corresponding to the live video data are loaded on the time axis; receiving an operation event aiming at the thumbnail and determining a target thumbnail set; determining that the target thumbnail set is located in a set of clip points on the timeline; sending the clipping point set to the server;
the clipping point set receiving module is used for receiving the clipping point set sent by the Web end;
the clipping video data acquisition module is used for acquiring clipping video data according to the clipping point set and the live video data;
the clipping video data sending module is used for sending the clipping video data to the Web end;
and the Web end is also used for receiving clip video data which is output by the server end and is obtained according to the clip point set and the live video data.
8. A live video clip system, comprising a server and a Web end connected with each other, wherein the server comprises:
the live video data sending module is used for sending the live video data to the Web end;
the Web end comprises:
the time axis display module is used for displaying the time axis corresponding to the live video data when the live video data read from the server side is played; thumbnails corresponding to the live video data are loaded on the time axis;
the target thumbnail set determining module is used for receiving the operation event aiming at the thumbnail and determining a target thumbnail set;
a clip point set determination module for determining a clip point set of the target thumbnail set on the time axis;
the clipping point sending module is used for sending the clipping point set to the server;
the server side further comprises:
the clipping point set receiving module is used for receiving the clipping point set sent by the Web end;
the clipping video data acquisition module is used for acquiring clipping video data according to the clipping point set and the live video data;
the clipping video data sending module is used for sending the clipping video data to the Web end;
the Web end further comprises:
and the clipping video data receiving module is used for receiving the clipping video data which is output by the server and is obtained according to the clipping point set and the live video data.
9. An electronic device, comprising: processor, memory and computer program stored on and executable on the processor, which computer program, when executed by the processor, carries out the steps of a live video clipping method as claimed in any one of claims 1 to 5.
10. A computer-readable storage medium, comprising: the computer readable storage medium having stored thereon a computer program which, when executed by a processor, carries out the steps of a method of live video clipping as claimed in any of claims 1-5.
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| CN114866805A (en) * | 2022-04-25 | 2022-08-05 | 阿里巴巴（中国）有限公司 | Video processing method, device and storage medium |
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