Apparatus and method for video data processing in digital video decoding
First Claim
1. An apparatus for video data processing in digital video decoding, which produces now video data according to an aspect ratio, main picture data, and sub-picture unit (SPU) data, the apparatus comprising:
- an SPU-decoding and color-determining device for performing sub-picture decoding and color determination on the SPU data, and producing decoded SPU data, the SPU-decoding and color-determining device comprising;
an SPU decoder for performing sub-picture decoding on the SPU data, and producing sub-picture pixel data in the form of corresponding color codes; and
a palette device, coupled to the SPU decoder, for converting the color codes into a plurality of color components in a video signal format, wherein the decoded SPU data is outputted in the form of the color components;
a mixer, coupled to the SPU-decoding and color-determining device, for mixing the main picture data and the decoded SPU data, and outputting combined video data;
a buffer, coupled to the mixer, for storing the combined video data outputted from the mixer; and
an interpolator, connected to the mixer and the buffer, respectively, for receiving the combined video data from the mixer and reading previously combined video data from the buffer in order to perform an interpolation operation according to the aspect ratio, the combined video data, and the previously combined video data to generate the new video data.
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Abstract
An apparatus and method for video data processing in digital video decoding, such as digital video disk (DVD) decoding, which produces new video data according to main picture data, sub-picture unit (SPU) data, and an aspect ratio. The apparatus includes a sub-picture-unit-decoding and color-determining device, a mixer, a buffer, and an interpolator. The sub-picture-unit-decoding and color-determining device is used for performing sub-picture decoding and color determination on the SPU data, and producing decoded SPU data. The mixer, coupled to the SPU-decoding and color-determining device, is employed to mix the main picture data and the decoded SPU data, and outputting combined video data. The buffer, coupled to the mixer, for storing the combined video data outputted from the mixer. The interpolator is used to receive the combined video data from the mixer and to read previously combined video data from the buffer, and to generate the new video data by performing an interpolation operation according to the aspect ratio, the combined video data, and the previously combined video data.
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Citations
14 Claims
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1. An apparatus for video data processing in digital video decoding, which produces now video data according to an aspect ratio, main picture data, and sub-picture unit (SPU) data, the apparatus comprising:
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an SPU-decoding and color-determining device for performing sub-picture decoding and color determination on the SPU data, and producing decoded SPU data, the SPU-decoding and color-determining device comprising; an SPU decoder for performing sub-picture decoding on the SPU data, and producing sub-picture pixel data in the form of corresponding color codes; and a palette device, coupled to the SPU decoder, for converting the color codes into a plurality of color components in a video signal format, wherein the decoded SPU data is outputted in the form of the color components; a mixer, coupled to the SPU-decoding and color-determining device, for mixing the main picture data and the decoded SPU data, and outputting combined video data; a buffer, coupled to the mixer, for storing the combined video data outputted from the mixer; and an interpolator, connected to the mixer and the buffer, respectively, for receiving the combined video data from the mixer and reading previously combined video data from the buffer in order to perform an interpolation operation according to the aspect ratio, the combined video data, and the previously combined video data to generate the new video data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for processing video data in digital video decoding, to produce new video data by performing video-frame aspect-ratio conversion of main picture data and sub-picture unit (SPU) data according to an aspect ratio, the method comprising the following steps:
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(a) producing decoded SPU data by performing sub-picture decoding on the SPU data, the producing step (a) comprising; performing sub-picture decoding on the SPU data and producing sub-picture pixel data in the form of corresponding color codes; and converting the color codes into a plurality of color components in a video signal format, wherein the decoded SPU data is produced in the form of the color components; (b) outputting combined video data by mixing the main picture data and the decoded SPU data; (c) storing the combined video data to a buffer; and (d) receiving the combined video data outputted by the step (b) and reading previously combined video data from the buffer, and generating the new video data by performing an interpolation operation according to the aspect ratio, the combined video data, and the previously combined video data. - View Dependent Claims (11, 12, 13, 14)
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Specification