Coding method and application supporting adaptive allocation of decoded compressed frame buffer
An encoding method and frame buffer technology, applied in the field of video processing, can solve the problems of underutilization of idle space, unpredictable decoding frame buffer compression rate, etc., and achieve the effect of saving storage space
Active Publication Date: 2022-03-08
MOLCHIP TECH (SHANGHAI) CO LTD
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Problems solved by technology
That is to say, in the actual decoding application using the frame buffer compression technology, about half of the frame buffer space is basically in an idle state, and since the compression rate of the decoding frame buffer cannot be predicted, in order to ensure compatibility with the worst case, these idle spaces are not underutilized
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[0050] see image 3 Shown, disclose a kind of coding method that supports adaptive allocation of decoding compressed frame buffer, comprise the steps:
[0051] S100. Pre-calculate and set the frame buffer compression ratio of the decoder at the encoder end (and encode the actual frame buffer size information required for each reconstructed frame into the video compression code stream.
[0052] S200. Transmit the aforementioned compressed video stream to a decoder.
[0053] S300. The aforementioned decoder side pre-allocates frame buffers for each frame according to received actual frame buffer size information required for each reconstructed frame.
[0054] In this embodiment, a frame buffer compression rate calculation module, a frame buffer compression rate control module, and a frame buffer compression information encoding module are preferably provided at the encoder end.
[0055] The frame buffer compression rate calculation module can calculate the frame buffer compres...
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The invention discloses a coding method and an application supporting adaptive allocation of decoded and compressed frame buffers, and relates to the technical field of video processing. An encoding method supporting adaptive allocation of decoding compressed frame buffers, comprising the steps of: pre-calculating and setting the frame buffer compression rate at the decoder end at the encoder end, and encoding the actual frame buffer size information required for each reconstructed frame input the video compression code stream; transmit the aforementioned video compression code stream to the decoder side; the decoder side pre-allocates the frame buffer of each frame according to the received actual frame buffer size information required for each reconstructed frame. The present invention combines frame buffer recompression technology and granular frame buffer management technology, supports multi-channel decoding video server to adaptively allocate frame buffer space for decoding each frame of each channel of video, and realizes storage resources off-chip of the server Optimum utilization.
Description
technical field [0001] The invention relates to the technical field of video processing. Background technique [0002] On the server side of the video system, it is usually necessary to support simultaneous decoding of multiple input encoded videos. For the information transmission process of ordinary decoders, see figure 1 As shown, each channel of video decoding needs to allocate an independent decoding frame buffer to store reference frame images, reconstruct frame images and display frame images. If there is not enough frame buffer space, the decoder will not work properly. Generally speaking, the frame buffer needs to allocate a size equal to the number of frames in the cache multiplied by the storage size of each frame. The storage size of each frame is determined by the image resolution, which is a fixed value for the same video sequence. With the wide application of ultra-high-definition video and the increase in the number of reference frames supported by coding s...
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IPC IPC(8): H04N19/42H04N19/44H04N19/85H04N19/117H04N7/18
CPCH04N19/42H04N19/44H04N19/85H04N19/117H04N7/181
Inventor 韦虎
Owner MOLCHIP TECH (SHANGHAI) CO LTD