Adaptive transmission method, playback device, and playback system for streaming media code stream based on device capabilities
A technology of adaptive transmission and equipment capabilities, applied in the direction of image communication, selective content distribution, electrical components, etc., can solve the problems of increasing invalid data transmission, occupying network bandwidth, and affecting data downloading, so as to improve the effective utilization rate and avoid The Effects of Redundancy and Waste
Active Publication Date: 2021-04-30
VIDAA(荷兰)国际控股有限公司
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[0003] However, the existing adaptive streaming media technology only selectively downloads data segments of different bit rates according to the download speed of the network. As long as the network bandwidth is sufficient, it will try to download and play high-bit rate videos. Under the trend of continuous optimization of facilities and continuous improvement of bandwidth, the existing adaptive streaming media technology will try to select high-bit-rate videos for downloading, which leads to low-end hardware devices also giving priority to downloading videos with higher bit-rates data, but limited by the maximum screen resolution supported by the hardware device itself and the lack of the maximum screen refresh rate, it cannot play video data with high resolution and refresh rate and has to discard some data, such as reducing the resolution, discarding Partial refresh rate data, etc.
It causes data redundancy and waste, and it also occupies the bandwidth of the network, which affects the data download of other services. At the same time, for the entire network, it greatly increases the transmission of invalid data, which greatly wastes network resources.
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[0042] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0043]In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have...
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The present invention relates to the technical field of streaming media transmission, in particular to a streaming media code stream adaptive transmission method based on equipment capabilities and a playback device. Select a group of video data fragments from at least one group of video data fragments less than or equal to the current network bandwidth, and the video resolution of the selected video data fragments is less than or equal to the maximum screen resolution supported by the hardware device itself and its video refresh rate is less than Equal to the maximum screen refresh rate supported by the hardware device itself; send a playback request corresponding to the selected video data segment to the server; the present invention selects a video data segment with a suitable code rate for downloading according to the image processing capability parameter, effectively avoiding the Redundancy and waste occur in the downloaded data, and the effective utilization of network resources is improved.
Description
technical field [0001] The present invention relates to the technical field of streaming media transmission, in particular to a streaming media code stream adaptive transmission method based on device capabilities, a streaming media code stream adaptive playback device based on device capabilities, and a streaming media code stream adaptive system based on device capabilities . Background technique [0002] With the development of network technology, the application of streaming media technology is becoming more and more extensive; streaming media means that businesses use an audio and video transmission server to package video programs into multiple data segments and then transmit them to the network; users download data from the network After the clips are decompressed and the data is decompressed by the decompression device, the video program will be displayed as it was before transmission. In order to ensure the smooth playback of video programs and provide users with a...
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IPC IPC(8): H04N21/462H04N21/472H04N21/442H04N21/45
CPCH04N21/44209H04N21/4516H04N21/4621H04N21/472
Inventor 曹哲秦敬波陈秀霆朱玥王玉秀王济洋
Owner VIDAA(荷兰)国际控股有限公司