| 摘要 |
In one embodiment, a DSP structure includes four main sections: DEQ, IDCT for row, IDCT for column, and motion compensation. The data input sequence is organized in such a way to facilitate the data loading into hardware structures for row IDCT and column IDCT. Two types of decoding flows are enabled by the DSP structure: H.264 decoding flows (e.g., dequantization, inverse discrete Hadamard transform, intra prediction, and motion decompensation), and non-H.264 decoding flows (e.g., dequantization, row inverse discrete cosine transformation, column inverse discrete cosine transformation, and motion decompensation). The non-H.264 decoding flow can be used for standards such as MPEG1/2/4, H.263, Microsoft WMV9, and Sony Digital Video.
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