US 10,482,917 B2 · Efficient just-in-time transcoding by parameter extraction

Abstract

A method of video encoding is provided to reduce the cost of network DVR storage by building on a concept of Just-In Time (JIT) transcoding which eliminates storing all formats of content in a DVR. A super-encoding procedure is provided that encodes a high resolution format, such as HEVC, while metadata is provided for lower resolution formats, such as MPEG4. The metadata can include items like motion vectors to reduce the computational costs during JIT transcoding. The super-encoded data is stored in memory of the DVR. High resolution encoded data is read directly out of the DVR memory, while lower resolutions are transcoded from the DVR memory data using the metadata to increase efficiency.

Claims12

Dependent claims

A method for performing video encoding for storage comprising:

providing super-encoding to compute an efficient compressed stream for storage for a single layer first resolution video;
and
computing metadata that reduces the computational load for subsequent Just In Time (JIT) transcoding the stored first resolution video as part of the super-encoding to a single layer second resolution video and storing the metadata with the compressed stream,
wherein the metadata targets the largest computational load of transcoding.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

15/044,267Filed 16 Feb 2016

Published

US 2017/0236546 A117 Aug 2017

Granted

19 Nov 2019

Term ends

Not estimatedThe source records don’t support an estimate.

Classification10 codes

G11B 20/00007
Signal processing not specific to the method of recording or reproducing; Circuits therefor: time or data compression or expansion
H04N 19/12
Characterised by the element, parameter or selection affected or controlled by the adaptive coding: selection from among a plurality of transforms…
H04N 19/40
Methods or arrangements for coding, decoding, compressing or decompressing digital video signals: using video transcoding, i.e. partial or full…
H04N 19/59
Using predictive coding: involving spatial sub-sampling or interpolation, e.g. alteration of picture size or resolution

Efficient just-in-time transcoding by parameter extraction

Life of this patent

Efficient just-in-time transcoding by parameter extraction

Life of this patent

Abstract

Claims12