Post by thread:MPEG

Has anyone out there done any work with decoding MPEG1 from a domestic CD player ? I am using C-Cube's CL480 & CL680 devices. I would like to talk to someone about some problems I'm having with decoding. Someone who knows HOW & WHY the syscon & dsp talk to each other would be good. Consultancy fees may be appropriate depending on level of expertise. BTW, the decoder pcb does contain a PIC ! :-) Regards... _________________________________________________________________ Dave Duffy Audio Visual Devices E-mail: spam_OUTAVDTakeThisOuTuq.net.au Phone: +61 7 38210362 Facsimile: +61 7 38210281 Unit 8, 9-11 Trade Street, Cleveland, Queensland 4163 Australia _________________________________________________________________

Are there any CD player/MPEG gurus out there ? I need some help in understanding how/why the decoder/dsp talks to syscon. We are using the C-Cube CL484 & CL680 devices to decode MPEG audio/video. Sorry for the OT nature but our pcb uses a PIC on as well ! Thanks in advance... _______________________________________________________________ Dave Duffy Audio Visual Devices .....AVDKILLspam@spam@uq.net.au Unit 8, 9-11 Trade Street, Cleveland, Queensland 4163 Australia Phone: +61 7 38210362 Facsimile: +61 7 38210281 _______________________________________________________________

On Sat, 14 Feb 1998 17:18:20 +1100, David Duffy <AVDKILLspamUQ.NET.AU> wrote: > Are there any CD player/MPEG gurus out there ? > I need some help in understanding how/why the decoder/dsp talks to syscon. > We are using the C-Cube CL484 & CL680 devices to decode MPEG audio/video. > Sorry for the OT nature but our pcb uses a PIC on as well ! > Thanks in advance... I have a friend who works in the sales department at C-Cubed. I could ask him to see if anyone there can help you... Interested? Later, Jon ------------------------------------------------------------------------ ----- Jon Hylands ----- .....JonKILLspam.....huv.com ----- http://www.huv.com/jon ------- ------------------------------------------------------------------------ ------------- PGP Fingerprint: 72 0B 9D E3 C2 F0 5D AC ----------------- ------------------------------ E3 D3 3D D0 7B 21 2B 2E ----------------- ------------------------------------------------------------------------

Hi Jon, >> Are there any CD player/MPEG gurus out there ? >> I need some help in understanding how/why the decoder/dsp talks to syscon. >> We are using the C-Cube CL484 & CL680 devices to decode MPEG audio/video. >> Sorry for the OT nature but our pcb uses a PIC on as well ! >> Thanks in advance... > >I have a friend who works in the sales department at C-Cubed. I could ask >him to see if anyone there can help you... > >Interested? You bet ! I have had some contact with Santanu Roy at C-Cube but he hasn't been able to help me in this area. Any leads or help is appreciated. :-) Thanks... _______________________________________________________________ Dave Duffy Audio Visual Devices EraseMEAVDspam_OUTTakeThisOuTuq.net.au Unit 8, 9-11 Trade Street, Cleveland, Queensland 4163 Australia Phone: +61 7 38210362 Facsimile: +61 7 38210281 _______________________________________________________________

I've done a engineering demo set using one uC to control CD servo & DSP and the CL484 (MPEG decoder) for VideoCD ver 2.0 implementation. But the uC that I used (H8/3726) has 48K of EPROM and able to drive VFD directly which probably the PIC can't handle. However, most implementation in the market uses a 2 uC solution with a dedicated 8051 to control the MPEG decoder + VFD driver IC + IR + etc. All these while communicating with the CD mechanism through a software protocol based on Philips DSA (Data, Strobe, Ack) or some other proprietary protocol. The other uC is dedicated to controlling the CD mechanism (servo + DSP). The CL484 uses a parallel interface and CL680 does it serially. I won't bother with the CL484 if I were you, as it will be obsolete soon. We are in the middle of migration to the CL680 as well. If you need any help, please e-mail me. Peter Tiang Design Engineer Design & Applications Lab Hitachi Semiconductor(M) Sdn Bhd Bayan Lepas FIZ 11900 Bayan Lepas Penang Malaysia. e-mail: tiangcfoonspam_OUThitachi.com.my tel: +604-643-8121 ext 2624 fax: +604-643-4190 ========================================================== >>> David Duffy <@spam@AVDKILLspamUQ.NET.AU> 14/February/1998 02:18pm >>> Are there any CD player/MPEG gurus out there ? I need some help in understanding how/why the decoder/dsp talks to syscon. We are using the C-Cube CL484 & CL680 devices to decode MPEG audio/video. Sorry for the OT nature but our pcb uses a PIC on as well ! Thanks in advance... _______________________________________________________________ Dave Duffy Audio Visual Devices KILLspamAVDKILLspamuq.net.au Unit 8, 9-11 Trade Street, Cleveland, Queensland 4163 Australia Phone: +61 7 38210362 Facsimile: +61 7 38210281 _______________________________________________________________

Is there any single chip MPEG decoders to NTSC? Can this be done is sofware and what MIPS might be required? Thanks. >> This is a test DISCARD. >> -- >> http://www.piclist.com hint: PICList Posts must start with ONE topic: >> [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads

Is there any single chip MPEG decoders to NTSC? Can this be done is sofware and what MIPS might be required? Your request is confusing. Do you want to know about MPEG Decoders which convert Analogue Signals (NTSC, PAL, SECAM et al) to a MPEG Digital Format (1,2,3....) and if so which Analogue and Digital formats. Or do you want to know about a MPEG Encoder which converts a MPEG digital format to an Analogue format signal ? Chris -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads

I want MPEG to analog signals, I stream MPEG and connect to a TV.... This is encode? R. >> Is there any single chip MPEG decoders to NTSC? Can this be done is >> sofware >> and what MIPS might be required? >> Your request is confusing. Do you want to know about MPEG Decoders which >> convert Analogue Signals (NTSC, PAL, SECAM et al) to a MPEG Digital Format >> (1,2,3....) and if so which Analogue and Digital formats. Or do you want >> to >> know about a MPEG Encoder which converts a MPEG digital format to an >> Analogue format signal ? >> Chris >> -- >> http://www.piclist.com hint: PICList Posts must start with ONE topic: >> [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I think you've got it backwards - an MPEG Decoder would take MPEG and turn it into Analog or something else, while the Encoder would do the opposite. MPEG is the "code" here. - -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 removed}

Analog Devices ADV7197, 7196, 7192,7194,7172,7173,7177,7178,7170,7171,7175,7176a,7175a,7176 are for Digital to PAL/NTSC Video Encoding Analog Devices ADV7183, ADV7185 are Video Decoders converting Composite and S-Video signals to Digital Please note you encoding a digital signal to Analogue and decoding an Analogue Signal to Digital. SGS-Thompson Microelectroncs have the STV0117A Encoder http://www.analog.com/ http://us.st.com/stonline/index.shtml -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics

> Is there any single chip MPEG decoders to NTSC? Can this be done is sofware > and what MIPS might be required? > > Your request is confusing. Do you want to know about MPEG Decoders which > convert Analogue Signals (NTSC, PAL, SECAM et al) to a MPEG Digital Format > (1,2,3....) and if so which Analogue and Digital formats. Or do you want to > know about a MPEG Encoder which converts a MPEG digital format to an > Analogue format signal ? I wasn't confused at first, but I sure am now. I had always thought of an MPEG "decoder" as taking MPEG digital format and outputting the raw frame data (be it NTSC, or whatever). Encoders, to me, take a "raw frame" input and encode it to MPEG specs. For instance, when DVD players are advertised, often they are comined with an "MPEG DECODER" card, which allows you to play back the DVD smoothly even on an older machine. Encoder cards seem to be mentioned in the context of video capture, etc. -Steve -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics

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 removed}

part 1 1857 bytes content-type:text/plain; charset=us-ascii Hi, Texas have an application note for the TMS320C54x DSP which shows MP3 decoding in one chip. Maybe they have one for MPEG? Dan (Embedded Stuart O'Reilly <RemoveMEpigTakeThisOuTAR.COM.AU>TakeThisOuTMITVMA.MIT.EDU> image moved 29/01/2001 10:11 to file: pic04675.pcx) Please respond to pic microcontroller discussion list <spamBeGonePICLISTspamBeGoneMITVMA.MIT.EDU> Sent by: pic microcontroller discussion list <TakeThisOuTPICLISTEraseMEspam_OUTMITVMA.MIT.EDU> To: RemoveMEPICLISTTakeThisOuTMITVMA.MIT.EDU cc: Subject: Re: [EE]: single chip MPEG video decoing Security Level:? Internal 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 removed} part 2 165 bytes content-type:application/octet-stream; (decode) part 3 131 bytes -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.

> 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?? Yes, however they would traditionally be called MPEG ENCODERS not decoders, perhaps that is why you are having difficulty finding one. TTYL -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.

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 removed}

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: {Quote hidden}> 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 removed}

I was the one who started this thread and after looking around it is correct Encoding is digital to analog and decoding is analog to digital, its all with respect to the digital in this case. If you go to **ANY** IC manufacturers site this is what you find. R. >> 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 removed}

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 http://www.micronas.com - look at their MAS3507D MPEG1/2 DEcoder. MPEG in, Audio out. - -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 removed}

With respect to audio it seems to be this way but check out the MPEG video IC's..... this is where it seems backwards. See subject MPEG video. R. >> -----BEGIN PGP SIGNED MESSAGE----- >> Hash: SHA1 >> http://www.micronas.com - look at their MAS3507D MPEG1/2 DEcoder. MPEG in, >> Audio out. >> - -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 removed}

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - From National Semiconductor, the NDV8501 DVD processor: MPEG Video Decode Decodes MPEG1 video & MPEG2 main level, main profile video (720x576) Maximum input bit-rate of 15 Mbits/sec I don't think that raw analog video usually has a bit rate... Now, it also mentions an NTSC/PAL encoder. This would be the actual formatting of the signal - sync pulses and what not. Thus, we should probably be saying "an MPEG transcder", as it's decoding the MPEG into video, then encoding it to NTSC. - -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 removed}

Hmmm, interesting. I got my information from three lectures at a course I did at the Australian Defence Force Academy. The three lectures are members of MPEG. I also see your point, where I think the terminology gets mixed up a bit is here, if you DECODE an analogue video signal it is assumed you are decoding a COMPOSITE video signal (luminance mixed with chroma). Once it is decoded you now have a component signal, the component signal consists of three signals Y,U,V (somtimes RGB). This component signal can be in the form of either an analogue or digital signal. To make an MPEG data stream you then need to send this Uncompressed digital data stream, (or if you are using the analogue signal it needs to be converted to digital first) to an MPEG ENCODER (these can be upto and over $100K depending on quality). Regards Stuart O'Reilly Chris Carr wrote: {Quote hidden}> > 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 removed}

Richard Sloan wrote: >I was the one who started this thread and after looking around it is correct > >Encoding is digital to analog >and decoding is analog to digital, its all with respect to the digital in >this case. > >If you go to **ANY** IC manufacturers site this is what you find. The first one I went to was C-Cube and look what they call their VCD chips; www.c-cube.com/product_display.fcfm?ProdID=45 It's the MPEG being DECODED in the player. Yes, the PAL/NTSC video is ENCODED from the MPEG data but the overall solution is still a DECODER. What are you really looking for? The player end or the production/source end? Regards... -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.

Please look at the subject line carefully. We are talking about Video not Audio. The originator of this thread took the trouble to read EXACTLY what I had written, then test it by undertaking basic research on the web. I took care to ensure that there was no doubt I was talking about VIDEO at no time did I attempt to cloud the issue by mentioning audio or any other non-digital signal. (Although at least one other person did). There is one fundamental difference between Analogue Audio and Video one aims to reproduce an exact facsimile of the sound pressure waves at the originating end (one dimensional with respect to time), the other "tricks" human eyes into thinking they are watching an exact facsimile at the remote end of a visual image (two dimensional with respect to time) as would be seen by human eyes. Now to obtain the same level of processing on an acoustic signal, as perceived by a human, as is applied to achieve a PAL, SECAM, NTSC encoded video signal, one has to apply the same level of ........ I have got bored with this, its so basic, and I have my tax returns to do before the end of the month otherwise I get a 100 quid (British Pounds) fine {Quote hidden}> http://www.micronas.com - look at their MAS3507D MPEG1/2 DEcoder. MPEG in, > Audio out. > > - -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 removed}

> It's the MPEG being DECODED in the player. Yes, the PAL/NTSC video is > ENCODED from the MPEG data but the overall solution is still a DECODER. > What are you really looking for? The player end or the production/source end? > Regards... I want to convert analogue video into MPEG, so it can be displayed on a computer and stored in memory. Any solutions for this are much appreciated. Thanks. -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.

> > It's the MPEG being DECODED in the player. Yes, the PAL/NTSC video is > > ENCODED from the MPEG data but the overall solution is still a DECODER. > > What are you really looking for? The player end or the > production/source end? rad0 wrote: >I want to convert analogue video into MPEG, so it can >be displayed on a computer and stored in memory. Maybe a PC capture card would be the best bet for you. IIRC, Averkey & such have cheapish ones that work ok. I don't think you'll find a simple-to-implement encoder solution. Regards... -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.

I don't know that there are single chip Analog-MPEG, too much for one device (i.e. not enough market, apart from the fact CODECS rarely survive more than 6 months). One path is: 1) a Video CODEC that will convert Analog Video to a fairly uncompressed digital form. Analog Devices for instance make a range of such devices in 120-160 pin TQFP. 2) An MPEG video CODEC, either a dedicated IC (obsolete in 6 months), an FPGA implementation (need to buy new IP Core every 6 months) or a DSP implementation (need to license new software every 6 months). Either way I'd say you'd be looking at >100pin **FP or *BGA and prob. $5K-10K licensing. Basically, you'll need a lot of resources for such a project (e.g. 4 layer prototype boards most likely with BGA packages). The fact that you are asking on the PIC List for such information suggests to me (no offense) that the project is a little out of your range. Tom. {Original Message removed}

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 (http://www.chrontel.com). For single chip MPEG-1 or MPEG-2 decoder, ESS (http://www.esstech.com) and C-Cube (http://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, http://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 (http://www.micronas.com), SGS-Thompson (http://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 removed}

> >I want to convert analogue video into MPEG, so it can > >be displayed on a computer and stored in memory. > > Maybe a PC capture card would be the best bet for you. > IIRC, Averkey & such have cheapish ones that work ok. > I don't think you'll find a simple-to-implement encoder solution. > Regards... Check out the All in Wonder series of graphics cards from ATI. These can do video capture to various formats, and I think MPEG is one of them. ***************************************************************** Olin Lathrop, embedded systems consultant in Devens Massachusetts (978) 772-3129, EraseMEolinembedinc.com, http://www.embedinc.com -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email RemoveMElistservEraseMEEraseMEmitvma.mit.edu with SET PICList DIGEST in the body

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 removed}

In message <RemoveMENDBBLGEHGLHAOEKCDCNDGENMDMAA.PICxpertspam_OUTKILLspamhome.com>, Randy Glenn <RemoveMEPICxpertTakeThisOuTspamHOME.COM> writes >Micronas is coming out with an MPEG1/2 Audio CODEC, with built in ADC and >DAC. Part # MAS3587F, I think... > Has anyone got one, Or even a full data sheet? Do they do an eval board? Scott -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email EraseMElistservspamspamBeGonemitvma.mit.edu with SET PICList DIGEST in the body

Is anyone aware of a small flash card board that can play small (3x 2 min) MPEG2 clips? I need to have about 60 multimedia stations that can each play 3 short DVD presentations. Actual DVD players would be too large and the lifespan would be too short. I'm thinking a flash-card based approach is what I need. David... -- ___________________________________________ David Duffy Audio Visual Devices P/L U8, 9-11 Trade St, Cleveland 4163 Australia Ph: +61 7 38210362 Fax: +61 7 38210281 New Web: http://www.audiovisualdevices.com.au ___________________________________________ -- http://www.piclist.com hint: To leave the PICList RemoveMEpiclist-unsubscribe-requestKILLspammitvma.mit.edu>

David Duffy wrote: > > Is anyone aware of a small flash card board > that can play small (3x 2 min) MPEG2 clips? > I need to have about 60 multimedia stations > that can each play 3 short DVD presentations. > Actual DVD players would be too large and the > lifespan would be too short. I'm thinking a > flash-card based approach is what I need. > David... > -- You could build one with PC104 cards running embedded linux. Have you considered using a rack of DVD players and running the video out to the station? (or are these widely separated kiosks?). You'd have the advantage of cheap machines, easily replaced. And what makes you say that the player life would be too short? I've seen DVD's that have been running 8hx7 for two years now (museum). And there are some small footprint DVD players out there. R -- http://www.piclist.com hint: To leave the PICList piclist-unsubscribe-requestSTOPspamspam_OUTmitvma.mit.edu>

45 seconds with google http://www.kiomag.com/dtechnu The POPbox can be connected to any TV, CRT, LCD or Plasma display, which supports Component Video. Stereo Audio out (MP3) is also supported on the POPBox. POPbox is easily programmed without any application software. Digital video (MPEG1/2) or still images (JPEG) are simply copied on to standard Compact Flash or Smart Media memory cards from any Windows or Mac operating system via a standard flash writer (not included). The POPbox will immediately play the files once the media is inserted into the POPbox. Media content will play in a continuous loop and is only limited in the size of the memory card used. The POPBox provides a `Folder / File' menu system that enables the user to play only selected files from the folder menu. http://www.dtdisplays.com/ Too easy.... R ---{Original Message removed}

> David Duffy wrote: > >>Is anyone aware of a small flash card board >>that can play small (3x 2 min) MPEG2 clips? >>I need to have about 60 multimedia stations >>that can each play 3 short DVD presentations. >>Actual DVD players would be too large and the >>lifespan would be too short. I'm thinking a >>flash-card based approach is what I need. >>David... >>-- > Robert Rolf wrote: > You could build one with PC104 cards running embedded linux. > > Have you considered using a rack of DVD players and running > the video out to the station? (or are these widely separated > kiosks?). You'd have the advantage of cheap machines, easily > replaced. And what makes you say that the player life would > be too short? I've seen DVD's that have been running 8hx7 for two > years now (museum). I think having 64 DVD players would be a very ugly solution. We do service here and are finding cheap DVD players are not very durable at all. No spare parts support on most either. Are the museum ones Pioneer 7200 (commercial) players? David... -- ___________________________________________ David Duffy Audio Visual Devices P/L U8, 9-11 Trade St, Cleveland 4163 Australia Ph: +61 7 38210362 Fax: +61 7 38210281 New Web: http://www.audiovisualdevices.com.au ___________________________________________ -- http://www.piclist.com hint: To leave the PICList spamBeGonepiclist-unsubscribe-requestSTOPspamEraseMEmitvma.mit.edu>

Robert Rolf wrote: > 45 seconds with google > > http://www.kiomag.com/dtechnu > > The POPbox can be connected to any TV, CRT, LCD or Plasma display, which supports > Component Video. Stereo Audio out (MP3) is also supported on the POPBox. > POPbox is easily programmed without any application software. Digital video (MPEG1/2) > or still images (JPEG) are simply copied on to standard Compact Flash or Smart Media > memory cards from any Windows or Mac operating system via a standard flash writer (not > included). The POPbox will immediately play the files once the media is inserted into the > POPbox. Media content will play in a continuous loop and is only limited in the size of the > memory card used. The POPBox provides a `Folder / File' menu system that enables the > user to play only selected files from the folder menu. > http://www.dtdisplays.com/ Looks promising. Thanks Robert. "Introductory price US$249" Hopefully that's not US$500 when you actually order them! David... -- ___________________________________________ David Duffy Audio Visual Devices P/L U8, 9-11 Trade St, Cleveland 4163 Australia Ph: +61 7 38210362 Fax: +61 7 38210281 New Web: http://www.audiovisualdevices.com.au ___________________________________________ -- http://www.piclist.com hint: To leave the PICList KILLspampiclist-unsubscribe-requestspamBeGonemitvma.mit.edu>

Hello everyone, I have a movie (in english) compressed with a "nice" compression ratio, and the same movie (in spanish) with a really bad compression ratio. I would like to merge the movie in english, the one that has a "nice" compression ratio, with the sound from the other one (spanish). Do you know wich software may allow me to do this ?? Thanks in advance.- _________________________________________ Gabriel ICQ#: 154107558 More ways to contact me: http://wwp.icq.com/154107558 _________________________________________ -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email EraseMElistservEraseMEmitvma.mit.edu with SET PICList DIGEST in the body

Try Virtual Dub http://www.virtualdub.org/ Instead of swapping audio tracks, recompress the Spanish movie to one with a better ratio. One thing that can really help get a smaller file is to use the frame decimation function. If you delete every 2nd or 3rd frame the movie size will obviously decrease quite dramatically and for most movies you'd never notice the difference on playback. You can also resize a movie, which also means a proportional decrease in file size, or even resample the movie at a slower frame rate Another option is that you convert the mpeg to avi with Virtual Dub, then use Real Producer to make it a Real Player (.ram .rm or .ra) file. Although you can lose quite a lot of detail (it's similar to the effect of jpegging a bitmap) the file size reduction can be as high as 100:1 before it becomes unwatchable, although Real Producer does give you the opportunity to set how much "jpegging" the process does. Depends really on the action or movement content (ie more or less detail required). A Google search returns this for "Real Producer" - http://www.realnetworks.com/products/producer/basic.html Not familiar with the name "Helix" but it looks about the same as my (free, a long long time ago and it still works) Producer 8 If you download Real Producer/Real Player (the basic ones are free) don't forget to watch which boxes you tick during installation. Real's products can be quite invasive (and no doubt snoopy) if you're careless -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email @spam@listserv@spam@spam_OUTmitvma.mit.edu with SET PICList DIGEST in the body

You can also try tmpgenc check out the site <http://www.vcdhelp.com> for a lot of guides and tools to the wonderful world of (timeconsuming) video and audio track managing :-) Gabriel Caffese wrote: {Quote hidden}> Hello everyone, > > I have a movie (in english) compressed with a "nice" compression > ratio, and the same movie (in spanish) with a really bad compression ratio. > I would like to merge the movie in english, the one that has a "nice" > compression ratio, with the sound from the other one (spanish). > Do you know wich software may allow me to do this ?? > > Thanks in advance.- > > > > _________________________________________ > Gabriel > ICQ#: 154107558 > More ways to contact me: http://wwp.icq.com/154107558 > _________________________________________ > > -- > http://www.piclist.com#nomail Going offline? Don't AutoReply us! > email spamBeGonelistservKILLspammitvma.mit.edu with SET PICList DIGEST in the body > > -- http://www.piclist.com hint: To leave the PICList .....piclist-unsubscribe-requestspam_OUTmitvma.mit.edu

Thanks to everyone who helped me. Bye.- -----Mensaje original----- De: pic microcontroller discussion list [TakeThisOuTPICLIST.....TakeThisOuTMITVMA.MIT.EDU]En nombre de Sten Dahlgren Enviado el: Lunes, 17 de Noviembre de 2003 09:00 Para: TakeThisOuTPICLISTKILLspamspamMITVMA.MIT.EDU Asunto: Re: [OT]: Merging Video and sound on an mpeg file. You can also try tmpgenc check out the site <http://www.vcdhelp.com> for a lot of guides and tools to the wonderful world of (timeconsuming) video and audio track managing :-) Gabriel Caffese wrote: > Hello everyone, > > I have a movie (in english) compressed with a "nice" compression > ratio, and the same movie (in spanish) with a really bad compression ratio. > I would like to merge the movie in english, the one that has a "nice" {Quote hidden}> compression ratio, with the sound from the other one (spanish). > Do you know wich software may allow me to do this ?? > > Thanks in advance.- > > > > _________________________________________ > Gabriel > ICQ#: 154107558 > More ways to contact me: http://wwp.icq.com/154107558 > _________________________________________ > > -- > http://www.piclist.com#nomail Going offline? Don't AutoReply us! > email .....listservRemoveMEmitvma.mit.edu with SET PICList DIGEST in the body > > -- http://www.piclist.com hint: To leave the PICList RemoveMEpiclist-unsubscribe-requestspamBeGonemitvma.mit.edu -- http://www.piclist.com hint: To leave the PICList spamBeGonepiclist-unsubscribe-request@spam@spam_OUTmitvma.mit.edu

Sorry for another OT post, but this seems to be the best knowledge base I have access to...<g> I need to cut some MPEG-2 video. I'm doing some home video to DVD transfers and there is wasted space at the beginning and end of each clip, as I started recording each clip to my computer before hitting play on the VCR. I have VirtualDub but it can't save in MPEG format to the best of my knowledge (I have a mod that opens them). If there is a mod out there that saves in MPEG format that would be great, as I really like VirtualDub. Saving as an AVI and encoding with TMPEG or similar isn't an option - I have 15-30 minute videos and an uncompressed AVI for 15 minutes of 720x540 video is about 20Gb. I'm using the demo version of DVD Lab to put the disc together and it includes a trim function that cuts the end of the video off, but I still have that 2 or 3 seconds at the beginning. Help? -Tony -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads

I've just spent the last few weeks ripping laserdisc to SVCD (no DVD burner) and the AVIs I've ripped usually end up between 10-12gig for 30 minutes of video. Make sure you compress with the lossless Huffyuv codec. Anyway, VirtualDub & TMPGenc worked well for me, but with my computer (1GHz Athlon) it could take up to 75 hours to encode a single disc (~30 minutes). Though I hear SVCD takes longer to encode than DVD (due to the odd 480x480 resolution) you gotta have a pretty hefty computer to encode mpeg2 on the fly? Anyway, doom9 [1] should have the tools you need. You might also want to check out their guides. /Patrik [1] http://www.doom9.org/ TakeThisOuTNaB25JspamAOL.COM wrote: {Quote hidden}> Sorry for another OT post, but this seems to be the best knowledge base I have access to...<g> > > I need to cut some MPEG-2 video. I'm doing some home video to DVD transfers and there is wasted space at the beginning and end of each clip, as I started recording each clip to my computer before hitting play on the VCR. I have VirtualDub but it can't save in MPEG format to the best of my knowledge (I have a mod that opens them). If there is a mod out there that saves in MPEG format that would be great, as I really like VirtualDub. > > Saving as an AVI and encoding with TMPEG or similar isn't an option - I have 15-30 minute videos and an uncompressed AVI for 15 minutes of 720x540 video is about 20Gb. I'm using the demo version of DVD Lab to put the disc together and it includes a trim function that cuts the end of the video off, but I still have that 2 or 3 seconds at the beginning. > > Help? > > -Tony > > -- > http://www.piclist.com hint: PICList Posts must start with ONE topic: > [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads > -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads

At 06:18 PM 12/13/2003 -0500, you wrote: I tried the demo version of the video editor from this place: http://www.honestech.com/ Seems not too bad but I don't really have a lot to compare it to. If you do a search on "mpeg video editor" you'll prolly get more hits than you need. DOC >Sorry for another OT post, but this seems to be the best knowledge base I >have access to...<g> > >I need to cut some MPEG-2 video. I'm doing some home video to DVD >transfers and there is wasted space at the beginning and end of each clip, >as I started recording each clip to my computer before hitting play on the http://www.robot-one.ca -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads