Micronas is coming out with an MPEG1/2 Audio CODEC, with built in ADC and DAC. Part # MAS3587F, I think... Also, I think that Toshiba has a one-chip MPEG4 solution. -Randy Glenn This coming from the guy with a system tray 7 icons wide... by 2 tall... ================================================= Randy_Glenn-at-tvo.org - PICxpert-at-picxpert.com PICxpert-at-yahoo.com - PICxpert-at-home.com http://www.picxpert.com/ ================================================= -----Original Message----- From: pic microcontroller discussion list [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Peter Tiang Sent: January 30, 2001 05:36 To: PICLIST@MITVMA.MIT.EDU Subject: Re: [PICLIST] [EE]: single chip MPEG video decoing Importance: High Hi, To put an end to this confusion, I think I can explain this. MPEG is a digital compression format, therefore, you need a MPEG DECODEr to decompress (or decode) the MPEG video stream into raw YUV pixel data. This raw YUV pixel data is then converted into PAL or NTSC by a video ENCODEr, e.g. Chrontel (www.chrontel.com). For single chip MPEG-1 or MPEG-2 decoder, ESS (www.esstech.com) and C-Cube (www.c-cube.com) are the leading vendors. ESS solution is the lowest cost solution I know and they sell by the millions in China market. For single chip MPEG-1/2 encoder, I think C-Cube is the leading vendor. For single chip MPEG-1/2 codec (ENCODE and DECODE simultaneously),look at StreamMachine, www.streammachine.com This is the chip used in most PVR (personal video recorder) popular in the US as TiVo and ReplayTV. C-Cube also has a solution. If you are interested in MP3 (MPEG1 or MPEG2 layer 3, not MPEG3) there's a lot of single-chip DECODErs available. e.g. Micronas (www.micronas.com), SGS-Thompson (www.st.com) However, I haven't seen a single-chip MP3 encoder available. Perhaps a PICLISTer can enlightent me on this. There's new (or rather old) interest in MPEG-4 or DIVX which promises to squeeze DVD quality movie onto a normal CD-R. It's suppose to be the MP3 equivalent for video. But I haven't seen any encoder or decoder in the market. Cheers, Peter Tiang Amquest Sdn Bhd ----- Original Message ----- From: "Sean Breheny" To: Sent: Tuesday, January 30, 2001 3:08 AM Subject: Re: [EE]: single chip MPEG video decoing > Well, I would have thought the other way around, too, (same as Stuart) > considering that > MPEG is a method of ENCODING a video signal (especially if you consider > NTSC or other analog video to be a "simpler" or "closer to physical" > representation). > > Also, with MPEG audio (MP3), software that you usually use on PCs > definitely uses the terms ENCODE for converting from analog or WAV files > to MP3 and DECODE for normal playback. > > Sean > > > On Mon, 29 Jan 2001, Chris Carr wrote: > > > Stewart, I have no intention of getting involved in terminology wars. > > If you can quote your sources of reference for the information given > > below then I may be prepared to agree with you. However, the CCIR who are > > the international standards setting body DECODE an analogue video signal > > into digital and ENCODE a digital signal into analogue video. > > > > If you want chips for a set top box to receive digital video transmissions > > you look for Encoder Chips. > > > > Chris > > > > > > > I just thought I would clear some things up here. > > > > > > Mpeg Encoder= Takes an analogue video signal or an un-compressed digital > > > video data stream as an input and outputs an MPEG data stream. You will > > not > > > find this as a one chip solution. > > > > > > MPEG Decoder= Takes an MPEG data stream as an input and will output an > > > analogue video signal or an un-compressed digital video data stream. You > > > will possibly find this as a multiple chip solution depending on the > > quality > > > you would like. > > > > > > Composite Video= Component, RGB or S- video that has been encoded using a > > > composite encoder. One chip solution > > > Regards > > > Stuart O'Reilly > > > > > > > > > ----- Original Message ----- > > > From: "rad0" > > > To: > > > Sent: Monday, January 29, 2001 4:37 PM > > > Subject: Re: [EE]: single chip MPEG video decoing > > > > > > > > > > I'd like to know about: > > > > > > > > MPEG Decoders which > > > > convert Analogue Signals (NTSC) to a MPEG Digital Format??? > > > > > > > > Is there a chip to do this?? > > > > > > > > Thanks... > > > > > > > > -- > > > > http://www.piclist.com hint: The PICList is archived three different > > > > ways. See http://www.piclist.com/#archives for details. > > > > > > > > > > > > > > -- > > > http://www.piclist.com hint: The PICList is archived three different > > > ways. See http://www.piclist.com/#archives for details. > > > > > > > > > > > > > -- > > http://www.piclist.com hint: The PICList is archived three different > > ways. See http://www.piclist.com/#archives for details. > > > > > > > > -- > http://www.piclist.com hint: The PICList is archived three different > ways. See http://www.piclist.com/#archives for details. > > > -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body