Multimedia data playing method and device
A multimedia data and playback method technology, applied in the direction of image communication, selective content distribution, electrical components, etc., can solve problems such as fast forwarding, inaccurate calculation of audio data and video data playback points, multimedia program playback freezes, etc.
Active Publication Date: 2019-11-19
CHENGDU TD TECH LTD
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However, the playback point of the audio data and the video data is through the RTCP (Real-time Transport Control Protocol, Real-time Transport Control Protocol) SR ( SenderReport, sender report), therefore, if the parameter record in any RTCP SR is wrong, the calculation of the respective playback points of audio data and video data will be inaccurate, which will cause the playback of multimedia programs to freeze fast forward phenomenon
[0004] However, in the prior art, the fluency of multimedia data playback is not high
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[0050] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0051] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the present invention and the above drawings are used to distinguish similar objects and not necessarily Describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances ...
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The invention provides a multimedia data playing method and apparatus, and belongs to the technical field of multimedia communication. The multimedia data playing method comprises the following steps: separately obtaining RTCP SR of first audio data, second RTCP SR of second audio data, third RTCP SR of first video data and fourth RTCP SR of second video data; determining the accuracy of a second RTP time according to a first system time, a second system time, a first NTP time, a second NTP time, a first RTP time and the second RTP time; similarly determining the accuracy of a fourth RTP time; and determining a playing point of the second audio data and the playing point of the second video data according to the accuracy of the second RTP time and the accuracy of the fourth RTP time. By adoption of the multimedia data playing method and apparatus provided by the invention, the multimedia data playing fluency is improved.
Description
technical field [0001] The invention relates to the technical field of multimedia communication, in particular to a method and device for playing multimedia data. Background technique [0002] Watching multimedia programs, such as TV programs, has become an indispensable part of daily life for most users. Usually, users need to select a certain player to play the multimedia program before watching the multimedia program. . [0003] The data of a multimedia program usually includes audio data and video data. In the prior art, in order to increase the viewing effect, most players use an audio data and video data synchronization mechanism to perform synchronous playback of audio data and video data when playing multimedia programs. , so that people can obtain auditory and visual sensations at the same time, thereby improving the user's sense of experience. However, before using the audio data and video data synchronization mechanism to play multimedia programs, it is necessar...
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IPC IPC(8): H04N21/43H04N21/6437
CPCH04N21/4305H04N21/4307H04N21/6437
Inventor 李敬来
Owner CHENGDU TD TECH LTD