A video playback method and device
A video playback and video frame technology, which is applied in the field of video decoding, can solve the problems of not smooth, high complexity of deblocking filter processing, decoding and unmoving, etc., and achieve the effect of smooth video decoding
Active Publication Date: 2017-05-31
深圳市瞳感科技有限公司
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However, deblocking filtering is the most complex and time-consuming part of the entire decoding process.
For some handheld devices such as mobile terminals with relatively low performance or without hardware accelerated decoding, the decoding algorithm sometimes does not work when using the deblocking filter algorithm, resulting in out-of-sync audio and video and unsmooth video playback.
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[0031] In order to make the object, technical solution and advantages of the present invention clearer, 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.
[0032] The present invention proposes a video playback method and device, which determines whether the performance of the playback device supports deblocking filtering according to whether the difference between the audio decoding timestamp and the video decoding timestamp of the current playback device is greater than a preset threshold, When the difference between the audio decoding timestamp and the video decoding timestamp is greater than a preset threshold, Gaussian smoothing filtering is used instead of deblocking filtering, so as to achieve smooth video playback on playback devices with relat...
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The invention relates to a video playing method and apparatus. The video playing method comprises the following steps: S1, determining the difference between the audio decoding time stamp and the video decoding time stamp of a currently played device is greater than a preset threshold; and S2, when the difference between the audio decoding time stamp and the video decoding time stamp of the currently played device is greater than the preset threshold, performing Gauss smooth filtering on video frames after decoding. The video playing method further comprises; S3, when the difference between the audio decoding time stamp and the video decoding time stamp of the currently played device is not greater than the preset threshold, performing deblocking filtering processing on the video frames after the decoding. According to the invention, videos can be played smoothly on a play device with quite low performance, and at the same time, the blocking effect is not caused due to closure of deblocking filtering.
Description
technical field [0001] The present invention relates to video decoding technology, and more specifically, to a video playing method and device. Background technique [0002] In the video decoding process, whether it is H.264 encoding format, RV40 encoding format or some other common encoding formats, deblocking filter (deblock) will be used to post-process the decoded video frames, which can remove the block effect (due to the encoding process) has a better effect. However, the deblocking filtering process is a part with relatively high complexity and the most time-consuming decoding in the whole decoding process. For some handheld devices such as mobile terminals with relatively low performance or without hardware accelerated decoding, the deblocking filter algorithm may sometimes cause the decoding to fail, resulting in audio and video out of synchronization and video playback screen is not smooth. Contents of the invention [0003] The technical problem to be solved b...
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IPC IPC(8): H04N21/4405H04N5/21H04N21/8547
Inventor 白向军
Owner 深圳市瞳感科技有限公司