Computationally fast and efficient DV to DVD transcoding

A method comprising:

• receiving encoded digital video (DV) data;
• converting the DV data to digital versatile disc (DVD) format by removing discrete cosine transformation (DCT) and inverse DCT (IDCT) functionality from baseline DV decoding, and removing DCT functionality from baseline DVD encoding, and:
• performing baseline inverse quantization (IQ) functionality on the decoded DV data;
• determining differences between the inversely quantized DV data and a current reference frame;
• performing baseline quantization (Q) functionality on the differences to generate the DVD data;
• and
• encoding the DVD data;
• and
• transmitting the DVD data to a system encoder.

A method comprising:

• decoding encoded DV data;
• determining differences between the decoded DV data and a factored reference frame data, the factored reference frame being a current reference frame multiplied by a new quantizer;
• performing new quantization on the differences, the new quantization performed using the new quantizer to generate DVD data;
• and
• encoding the DVD data using variable length coding.

An apparatus comprising:

• a VLD (variable length decoder) to decode encoded DV data;
• a math unit to determine differences between the decoded DV data and a factored reference frame data, the factored reference frame being a current reference frame multiplied by a new quantizer;
• an NQ (new quantizer) unit to quantize the differences using a new quantizer, generating DVD data;
• and
• a VLC (variable length coder) unit to encode the DVD data.

A system comprising:

• a memory to store a sequence of instructions;
• a bus coupled to the memory to transmit the sequence of instructions to a processor;
• and
• the processor coupled to the bus to receive the sequence of instructions and to:
• receive encoded digital video (DV) data from an IEEE (Institute of Electronics and Electrical Engineers) 1394 interface;
• and
• convert the DV data to digital versatile disk (DVD) data by:
• decoding the encoded DV data;
• determining differences between the decoded DV data and a factored reference frame data, the factored reference frame being a current reference frame multiplied by a new quantizer;
• performing new quantization on the differences, the new quantization performed using the new quantizer to generate DVD data;
• and
• encoding the DVD data.

A system comprising:

• a memory to store a sequence of instructions;
• a bus coupled to the memory to transmit the sequence of instructions to a processor;
• and
• the processor to receive the sequence of instructions from the bus and to receive encoded digital video (DV) data from a USB (Universal Serial Bus) interface, and convert the DV data to digital versatile disk (DVD) data by:
• decoding the encoded DV data;
• determining differences between the decoded DV data and a factored reference frame data, the factored reference frame being a current reference frame multiplied by a new quantizer;
• performing new quantization on the differences, the new quantization performed using the new quantizer to generate DVD data;
• and
• encoding the DVD data.

A machine-readable medium having stored thereon data representing sequences of instructions, the sequences of instructions which, when executed by a processor, cause the processor to perform the following:

• receive encoded digital video (DV) data;
• convert the DV data to digital versatile disc (DVD) format by removing discrete cosine transformation (DCT) and inverse DCT (IDCT) functionality from baseline DV decoding, and remove DCT functionality from baseline DVD encoding, and:
• perform baseline inverse quantization (IQ) functionality on the decoded DV data;
• determine differences between the inversely quantized DV data and a current reference frame;
• perform baseline quantization (Q) functionality on the differences to generate the DVD data;
• and
• encode the DVD data;
• and
• transmit the DVD data to a system encoder.

A machine-readable medium having stored thereon data representing sequences of instructions, the sequences of instructions which, when executed by a processor, cause the processor to perform the following:

• decode encoded DV data;
• determine differences between the decoded DV data and a factored reference frame data, the factored reference frame being a current reference frame multiplied by a new quantizer;
• perform new quantization on the differences, the new quantization performed using the new quantizer to generate DVD data;
• and
• encode the DVD data using variable length coding.

An apparatus comprising:

• at least one processor;
• and
• a machine-readable medium having instructions encoded thereon, which when executed by the processor, are capable of directing the processor to:
• receive encoded digital video (DV) data;
• convert the DV data to digital versatile disc (DVD) format by removing discrete cosine transformation (DCT) and inverse DCT (IDCT) functionality from baseline DV decoding, and remove DCT functionality from baseline DVD encoding, and:
• perform baseline inverse quantization (IQ) functionality on the decoded DV data;
• determine differences between the inversely quantized DV data and a current reference frame;
• perform baseline quantization (Q) functionality on the differences to generate the DVD data;
• and
• encode the DVD data;
• and
• transmit the DVD data to a system encoder.

An apparatus comprising:

• means for decoding encoded DV data;
• means for determining differences between the decoded DV data and a factored reference frame data, the factored reference frame being a current reference frame multiplied by a new quantizer;
• means for quantizing the differences using a new quantizer, generating DVD data;
• and
• means for encoding the DVD data.