System and method for video and audio encoding on a single chip

• US 20030108105A1
• Filed: 06/11/2002
• Published: 06/12/2003
• Est. Priority Date: 04/06/1999
• Status: Active Grant

• Current Assignee: Avago Technologies General IP PTE Limited (Broadcom, Inc.)
• Original Assignee: Broadcom Corporation (Broadcom, Inc.)
• Inventors: Oxman, Gadi, Spektor, Evgeny, Yavits, Leonid, Khrapkovsky, Michael, Morad, Amir, Chernov, Gregory
• Granted Patent: US 8,270,479 B2
• Time in Patent Office: Days
• US Class Current: 375/240.26
• CPC Class Codes: H04N 19/42 characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation H04N19/635 takes precedence
• CPC Class Codes: H04N 19/423 characterised by memory arrangements H04N19/433 takes precedence
• CPC Class Codes: H04N 19/436 using parallelised computational arrangements
• CPC Class Codes: H04N 19/61 in combination with predictive coding
• CPC Class Codes: H04N 21/226 Characteristics of the server or Internal components of the server
• CPC Class Codes: H04N 21/236 Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream multiplexing of data packets for data networks, e.g. RTP/UDP H04L65/00
• CPC Class Codes: H04N 21/2368 Multiplexing of audio and video streams
• CPC Class Codes: H04N 21/4341 Demultiplexing of audio and video streams
• CPC Class Codes: H04N 7/52 Systems for transmission of a pulse code modulated video signal with one or more other pulse code modulated signals, e.g. an audio signal or a synchronizing signal assembling of a multiplex stream by combining a video stream with other content or additional data, remultiplexing of multiplex streams, insertion of stuffing bits into the multiplex stream, assembling of a packetised elementary stream at server side H04N21/236; disassembling of a multiplex stream, remultiplexing of multiplex streams, extraction or processing of Service Information, disassembling of packetised elementary stream at client side H04N21/434

Abstract

An apparatus is disclosed for performing real time video/audio encoding on a single chip. Within the single chip, a video encoder generates encoded video data from uncompressed video data and an audio encoder generates encoded audio data from uncompressed audio data. A mux processor within the single chip generates an output stream of encoded data from the encoded video data and the encoded audio data.

Claims

1. A single chip digital signal processing apparatus for real time video/audio encoding, said apparatus comprising:

a video encoder for generating encoded video data from uncompressed video data;

an audio encoder for generating encoded audio data from uncompressed audio data; and

a mux processor to generate a multiplexed output stream of data from said encoded video data and said encoded audio data.

2. The apparatus of claim 1 wherein an encoding type of said video encoder and said audio encoder is programmable.

3. The apparatus of claim 1 further comprising a digital video broadcasting (DVB) formatter to generate a DVB interface signal to transmit encoded data directly from said single chip to another chip without the aid of an intermediate interface external to said single chip.

4. The apparatus of claim 1 further comprising a PCI interface to directly communicate with a PCI bus without the aid of an intermediate interface external to said single chip.

5. The apparatus of claim 1 further comprising a 12C/GPIO interface that may be programmed to allow said single chip to communicate with other devices external to said single chip using an 12C protocol or some other general interface protocol.

6. The video encoder of claim 1 further comprising a video blanking interval (VBI) extractor and slicer to extract and format user data embedded in a VBI of said uncompressed video data into an encoded data stream or unencoded data stream.

7. The apparatus of claim 1 wherein said uncompressed video data and said uncompressed audio data are encoded with any one of the encoding types including the various MPEG standards and Dolby AC-3.

8. The apparatus of claim 1 wherein said uncompressed video data comprises CCIR-656 video data.

9. The apparatus of claim 1 wherein said uncompressed audio data comprises one of 12S audio data and AC97 audio data.