Video codec with shared interpolation filter and method for use therewith

1. A video processing device having an encoding mode where the processing device encodes an input signal and a decoding mode where the video processing device decodes the input signal, the video processing device comprising:

a motion search module, that generates a motion search motion vector for each macroblock of a plurality of macroblocks;

motion refinement module, coupled to the motion search module, that generates a refined motion vector for each macroblock of the plurality of macroblocks, based on the motion search motion vector, the motion refinement module including an interpolation filter that interpolates a plurality pixels for each macroblock of the plurality of macroblocks to form a plurality of interpolated pixels, wherein the interpolation filter operates when the video processing device is in the encoding mode and when the video processing device is in the decoding mode and wherein the encoding mode and the decoding mode selectively operate in accordance with a first standard when a standard selection signal has a first value and in accordance with a second standard when the standard selection signal has a second value, and wherein the first standard and the second standard are differing ones of: an H.264 standard, a Motion Picture Experts Group (MPEG) standard, and a Society of Motion Picture and Television Engineers (SMPTE) standard.

2. The video processing device of claim 1 wherein the interpolation filter operates in accordance with at least one of, a bicubic interpolation, and a bilinear interpolation.

3. The video processing device of claim 1 wherein the plurality of interpolated pixels are interpolated to sub-pixel resolution.

4. A video processing system having an encoding mode where the processing device encodes an input signal and a decoding mode where the video processing system decodes the input signal, the video processing device comprising:

a mode decision module that determines a final motion vector for each macroblock of a plurality of macroblocks;

a reconstruction module, coupled to the mode decision module, that generates residual pixel values corresponding to the final motion vector for each macro block of the plurality of macroblocks when in the video processing device is in the encoding mode and that generates unfiltered reconstructed frames when the video processing device is in the decoding mode; and

a transform and quantization module, coupled to the reconstruction module, that transforms and quantizes the residual pixel values when the video processing device is in the encoding mode and that forms residual pixel values by inverse transforming and dequantization when in the video processing device is in the decoding mode.

5. The video processing device of claim 4 wherein the encoding mode and the decoding mode each operate in one of, an H.264 standard, a Motion Picture Experts Group (MPEG) standard, and a Society of Motion Picture and Television Engineers (SMPTE) standard.

6. The video processing device of claim 4 wherein the encoding mode and the decoding mode selectively operate in accordance with a first standard when a standard selection signal has a first value and in accordance with a second standard when the standard selection signal has a second value.

7. A method comprising:

operating a video processing device in an encoding mode when a mode selection signal has a first value;

operating the video processing device in a decoding mode when the mode selection signal has a second value;

wherein the step of operating the video processing device in the encoding mode utilizes a interpolation filter to perform an encoding function and wherein the step of operating the video processing device in the decoding mode utilizes the interpolation filter to perform a decoding function;

wherein the encoding mode and the decoding mode selectively operate in accordance with a first video compression standard when a standard selection signal indicates the first video compression standard and in accordance with a second video compression standard when the standard selection signal indicates the second video compression standard.

8. The method of claim 7 wherein the interpolation filter operates in accordance with at least one of, a bicubic interpolation, and a bilinear interpolation.

9. The method of claim 7 wherein the plurality of interpolated pixels are interpolated to sub-pixel resolution.

10. The method of claim 7 wherein the first video compression standard and the second video compression standard are differing ones of: an H.264 standard, a Motion Picture Experts Group (MPEG) standard, and a Society of Motion Picture and Television Engineers (SMPTE) standard.