45results about How to "Improve playback fluency" patented technology

The invention relates to a method and a device for converting an SWF into a Canvas cartoon. The method comprises following steps of analyzing an SWF file, traversing the SWF file so as to obtain an element which comprises film editing and graphs, and defining and storing the element to an element pool; compressing the graphs and deriving compressed graph data; compressing the film editing and deriving frame operation instructions of the film editing; and calling and restoring the compressed graph data and the frame operation instructions of the film editing via an application function of a script runtime library to be a Canvas cartoon. In this way, size of the data is reduced; the compressed graph data and the frame operation instructions of the film editing are directly called via the application function of the script runtime library without conditional judgment, so computing time is reduced; and due to the small size of the data, loading time is saved and playing fluency is improved.

The invention relates to the technical field of video redirection, in particular to an HTML5 online video redirection system and an implementation method thereof. The system of the present invention consists of HTML5 video redirection plug-in, HTML5 video redirection proxy and HTML5 video parser; the HTML5 video redirection plug-in in the cloud desktop browser implants listeners in events such as element insertion and webpage loading; listener detection According to the HTML5 video feature, the URL of the web page is sent to the cloud terminal through the HTML5 video redirection agent; the cloud terminal creates a new browser window, and loads the webpage content according to the URL; the cloud terminal covers the display area of ​​the browser window with the content display area of ​​the cloud desktop browser; The HTML5 Video Redirect plugin marks the current tab as redirected and clears the content of the tab. The invention can effectively reduce the load and network requirements of the cloud desktop, and improve the playing fluency and user experience of HTML5 online video in the desktop cloud environment.

The invention discloses a video coding code rate control method and belongs to the video coding technology field. The method comprises steps that the code rate information of a video is acquired; images within the target unit time are extracted from the video, and the target unit time refers to the unit time when a code rate is greater than a preset value; the images are filtered; the images after filtering are coded and are then packaged to be video files. Through the method, problems of over-long coding time consuming and increase of probability of video playing failure existing in a code rate control method in the prior art are solved, on one hand, code rate reduction processing on images with relatively large code rates is carried out, the coding consuming time is reduced, on the other hand, a problem of video playing failure caused by slice loss can be avoided, probability of video playing failure is substantially reduced, moreover, through code rate reduction processing on the images with the relatively large code rates, a video peak code rate is substantially reduced, and purposes of reducing video playing lag and improving video playing smoothness are realized.

The invention discloses a viewpoint switching method of a multi-viewpoint video, comprising: after receiving a viewpoint switching request, a terminal checks whether there is an IDR frame within a preset duration of the terminal local cache content of the current viewpoint; if there is an IDR frame within the preset duration, Then add the time point of the IDR frame to the viewpoint switching request and report to the server; if there is no IDR frame within the preset duration and the cache content is greater than the preset duration, then add the time point after the preset duration to the viewpoint switching request and report to the server ; If there is no IDR frame within the preset duration, and the cache content is less than the preset duration, then add the time point at the end of the cache to the view switching request and report to the server; clear the local cache of the terminal after the time point in the viewing point switching request reported to the server. The invention realizes the alignment of time stamps of different viewpoints in multi-viewpoint video switching, so that the connection of front and rear viewpoints is synchronized in time. The invention also discloses a corresponding viewpoint switching system of multi-viewpoint video.

The invention discloses a network TV set and a method for capturing a datagram thereof. A network module of the network TV set comprises a direct memory storage controller (a DMA controller) which is connected with a network adapter driving module and a network card interface respectively; and the network TV set is provided with a bumping block which is connected with the network card interface through the direct memory storage controller (the DMA controller). The TV set and the method ensure that a network adapter driver and a user program can directly access and operate a common memory spaceby building a common memory space of a network card and a user area on the network TV set so as to reduce memory copy of a system kernel to a user space, reduce the spending of calling a system synchronously, and improve the playing fluency of video frequency and audio frequency data of the network TV set.

The embodiment of the invention discloses a video downloading method, device, server and storage medium. Wherein, the method includes: determining in real time the download progress of the currently played video that has not been downloaded; if the download progress supports the smooth play of the currently played video and the remaining pre-download of the next played video, then while downloading the currently played video, pre-download The next video will be played until the download progress does not support the smooth playback of the currently playing video, then the pre-download of the next playing video will be suspended, and only the currently playing video will be downloaded. The technical solution provided by the embodiment of the present invention ensures the synchronous download of the currently played video and the next played video, so that the next played video can be pre-downloaded as soon as possible, thereby avoiding the playback freeze when the video is switched and played, and at the same time ensuring the accuracy of the currently played video. Download priority, avoid the playback of the currently playing video, and improve the playback fluency of the currently playing video.

The present disclosure relates to a video playback method, device, storage medium and electronic equipment. The method includes: receiving a video playback request, the video playback request includes first video information, and the video playback request indicates that the target page playback corresponds to the first video information video data; obtain the second video information corresponding to the video preview page, and the video preview page is used to play the video data corresponding to the second video information; when the first video information and the second video information are the same, based on the video preview page The corresponding video playing progress information plays the video data corresponding to the first video information on the target page. Therefore, the transmission volume of video data can be effectively reduced, the request response time of video data and the waiting time of video playback can be shortened. On the other hand, the playback progress of the preview video on the video preview page and the video playback progress of the target page can be guaranteed to be continuous. , to ensure the continuity of video playback.

Disclosed is a method for acquiring a live video slice. The method comprises: acquiring a reference time length of a slice; determining a sum of the reference time length and a first preset time length as a first time length, and / or determining a difference between the reference time length and the first preset time length as a second time length; acquiring a qth key frame of a current original live source; determining a start position of the qth key frame as a start position of a qth slice; in a first time length and / or a second time length of the start position of the qth key frame, when it is determined that a (q+1)th key frame exists, determining a start position of the (q+1)th key frame as an end position of the qth slice; and at the start position and an end position of the qth frame, slicing the current original live source to form the qth slice, q being a positive integer. Also disclosed are a server and a computer storage medium.