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149results about How to "Increase playback speed" patented technology

Audio and video synchronization method, device and a digital television chip

The invention provides an audio / video synchronization method of a mobile multimedia broadcast system, which comprises the following steps: establishing a storage address of the decoded audio data and a mapping relation table of timestamps; inquiring the mapping relation table for the timestamps of the audio data according to the storage address, to which the playing audio data point, and acquiring the timestamps of the currently playing video data; and adjusting the video playing to the audio / video synchronization state according to the timestamps of the audio data and the video data. The invention compares the playing progress of audio and video on a real-time basis based on the characteristic that the audio data are uncontrollable, and provides the corresponding adjusting opinions, so that the audio / video synchronization under the condition that the terminal can not control the 'source' can be ensured, the audio / video data timestamp confirmation mechanism is adopted to overcome the defect that error codes exist in the broadcast channel transmission, the incorrect adjustment of the audio / video synchronization caused by the error codes is overcome, and the interference of the audio / video adjustment caused by the transmission error codes of the broadcast channel is restrained.
Owner:新奇点智能科技集团有限公司

Live broadcast picture content switching display method, storage equipment and computer equipment

The invention provides a live broadcast picture content switching display method, storage equipment and computer equipment. The method includes the following steps: displaying a plurality of live broadcast cards on a current interface, and recognizing a touch action of a user on the first live broadcast card; acquiring an audio and video stream corresponding to a live broadcast picture of a live broadcast room; drawing a small window interface on the current interface, and playing the audio and video stream of the live broadcast picture of the live broadcast room by using the small window interface; recognizing a touch action of the user on the second live broadcast card; acquiring an audio and video stream corresponding to the live broadcast picture of the live broadcast room; and interrupting the play of the audio and video stream of the live broadcast picture of a first live broadcast room in the small window interface, pulling the audio and video stream of the live broadcast picture of a second live broadcast room, and playing the audio and video stream of the live broadcast picture of the second live broadcast room by using the small window interface. The user can use the small window interface to preview the live broadcast picture contents of the corresponding live broadcast rooms by touching different live broadcast cards in a live broadcast list, and thus the cumbersomeoperations that the user continuously returns to the live broadcast list to enter different live broadcast rooms can be avoided, and the efficiency that the user switches the live broadcast rooms canbe improved.
Owner:GUANGZHOU HUYA INFORMATION TECH CO LTD

Intelligent terminal starting-up animation play control method

The invention discloses an intelligent terminal starting-up animation play control method. The method comprises the steps that intelligent terminal starting-up animation play control files and picture catalogues are set; the display control files are analyzed, and staring-up animation play parameters are obtained; a starting-up animation play mode is detected; starting-up animation play of an intelligent terminal is executed, wherein when the play mode is a single-layer mode, the single layer is controlled to display loop playback of a picture, and when the play mode is a double-layer mode, a background picture layer and an animation picture layer are independently controlled, all animation frames of the animation picture layer are stored in an internal storage of the intelligent terminal, and the animation picture layer is overlapped to the background picture layer to form the starting-up animation. According to the intelligent terminal starting-up animation play control method, the occupation space of the animation files can be effectively reduced, the picture loading speed and decoding speed are improved, and therefore the starting-up and animation play fluency and the resource utilization rate of the intelligent terminal are improved.
Owner:GUANGZHOU SHIYUAN ELECTRONICS CO LTD

Fast broadcast starting method and apparatus of high-definition live video

The invention provides a fast broadcast starting method and apparatus of high-definition live video, and relates to the technical field of live video. The method comprises the following steps: receiving live video data from a live broadcast source in real time, performing parsing according to the currently received live video data, determining a live broadcast parameter of the live broadcast source, caching live broadcast cache data according to the live broadcast parameter and the currently received live video data, and quickly sending the live broadcast cache data to a live broadcast terminal, so that the live broadcast terminal can quickly start broadcasting the live broadcast cache data. The shortest cache time length of the live broadcast cache data needing to be cached at present iscalculated according to the live broadcast parameter and a predetermined algorithm, and the live broadcast cache data are automatically updated in real time according to the shortest cache time lengthand a complete GOP requirement. The live broadcast cache data with the shortest cache time length are met, and the phenomenon that the screen is blocked or the delay is too long after the broadcast is started is reduced; and furthermore, the live broadcast cache data are sent to the live broadcast terminal according to a fast sending speed, thereby improving the broadcast starting speed of the live broadcast terminal, and accordingly, the user placing experience is improved.
Owner:北京数码视讯软件技术发展有限公司

Time shifting optimization method and system based on HLS protocol

The invention discloses a time shifting optimization method and system based on the HLS protocol, and relates to the field of Internet multimedia. The method includes the following steps: starting from a preset time point, with a media segment time length with a fixed length as a fragment length, counting a fragment sequence ID of each streaming media fragment; storing all streaming media fragments within a time shifting range, grouping the streaming media fragments, dividing every continuous N streaming media fragments into one group, wherein each group of streaming media fragments forms a time shifting index file; causing an HLS live broadcast program into a time shifting state by a client via a broadcast control operation, adding time shifting additional information on the address of the live broadcast index file, and sending the time shifting index file to an HTTP streaming media server; analyzing, by the HTTP streaming media server, the time shifting additional information, and sending the corresponding time shifting index file to the client; and requesting and playing, by the client, the received streaming media fragments. By adoption of the time shifting optimization methodand system, the bandwidth and time consumed by the transmission of the time shifting index file are reduced, which is conducive to improving the playing speed.
Owner:FENGHUO COMM SCI & TECH CO LTD

Method, apparatus and system for rapid acquisition of multicast realtime transport protcol sessions

Provided are a method, an apparatus, and a system for rapid acquisition of multicast realtime transport protocol sessions. The method comprises the following steps executed by a unicast server: receiving multicast rapid acquisition control request signalling sent by a media client, wherein the control request signaling contains synchronization request information; determining data synchronization of the media client according to the synchronization request information in the control request signaling; determining synchronization response information according to the time difference between play time of a stored random access point and the current time, wherein the synchronization response information contains play speed information and play duration of unicast media stream; generating multicast rapid acquisition control response signaling, wherein the control response signaling contains synchronization response information and multicast acquisition information; unicasting the control response signaling and stored media stream to the media client. With the invention, the media client that lags more can play lagged media stream with a faster play speed and thus synchronization of video play picture between different media clients can be achieved.
Owner:ZTE CORP
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