Re: [eug-lug]multimedia puzzle...
I can suggest ncftp for a very good CLI FTP client. AVI is a wrapper, AFAIK, for a wide variety of stuff. Even for divx, there are multiple versions. There are some alternative media players for 'bloze on sites such as cnet's download.com ... best wishes for a media-filled new year! cheers, Ben On Fri, 26 Dec 2003 10:19:58 -0800 (PST) Mr O [EMAIL PROTECTED] wrote: | Most likely your avi are divx. Get your codecs. | I use scp, nfs, or smb between my boxes. | ___ EuG-LUG mailing list [EMAIL PROTECTED] http://mailman.efn.org/cgi-bin/listinfo/eug-lug
Re: [eug-lug]multimedia puzzle...
On Sat, Dec 27, 2003 at 01:06:44PM -0800, Ben Barrett wrote: I can suggest ncftp for a very good CLI FTP client. lftp is also rather nice, but it is not always perfect (it doesn't show the MOTD for example..) AVI is a wrapper, AFAIK, for a wide variety of stuff. Even for divx, there are multiple versions. There are some alternative media players for 'bloze on sites such as cnet's download.com ... best wishes for a media-filled new year! AVI files are actually RIFF files given the AVI extension so you know that they contain video. RIFF is also used by WAV files, with the WAV extension meaning that the files contain PCM sound data with no or lossless compression. Apple's equivalent to RIFF is called moov. The name of moov is taken from its first tag which holds the header information which identifies the file's contents. Both come from the Amiga IFF file format, which is described by many Amiga fans as binary XML. I do not know what the R stands for in RIFF, but RIFF is a little-endian format. The Amiga and mac both are big-endian. The structure of the file, regardless of whose version you're using, is as sequential blocks prefixed by a block size and type. I believe the size is a 32 bit number. The type is four bytes and is intended to be ASCII for some measure of sanity when viewed in a hex editor. ie, moov being the QuickTime format used originally for QT movies only, the identifier makes perfect sense. A little more useless/random information, file(1) indicates that WAV files are RIFF WAVE. You guessed it, WAVE is the name of the block which contains the header information telling you that the file is PCM data, what rate, how many channels, etc. Caveat 1: Whether the block name or size comes first, I can't remember off the top of my head. Caveat 2: Given how much uses the moov format these days, I have to wonder if I'm not mistaken about its origins with QuickTime. Caveat 3: I'm not sure if moov is in fact just Amiga IFF and the only thing special about it is the signature tag. Caveat 4: In order for IFF to be binary XML, one must see nesting. Indeed, there is nesting, but not as much as you find with XML. At some point in the file, you wind up with one or more huge bloxks of data in some format specified either by the header or the name of the tag itself. Vaveat 5: There are too many caveats in this bit of useless information. ___ EuG-LUG mailing list [EMAIL PROTECTED] http://mailman.efn.org/cgi-bin/listinfo/eug-lug
Re: [eug-lug]multimedia puzzle...
On Sat, Dec 27, 2003 at 04:47:05PM -0800, T. Joseph Carter wrote: On Sat, Dec 27, 2003 at 01:06:44PM -0800, Ben Barrett wrote: I can suggest ncftp for a very good CLI FTP client. lftp is also rather nice, but it is not always perfect (it doesn't show the MOTD for example..) AVI is a wrapper, AFAIK, for a wide variety of stuff. Even for divx, there are multiple versions. There are some alternative media players for 'bloze on sites such as cnet's download.com ... best wishes for a media-filled new year! AVI files are actually RIFF files given the AVI extension so you know that they contain video. RIFF is also used by WAV files, with the WAV extension meaning that the files contain PCM sound data with no or lossless compression. Apple's equivalent to RIFF is called moov. The name of moov is taken from its first tag which holds the header information which identifies the file's contents. Both come from the Amiga IFF file format, which is described by many Amiga fans as binary XML. I do not know what the R stands for in RIFF, but RIFF is a little-endian format. The Amiga and mac both are big-endian. The structure of the file, regardless of whose version you're using, is as sequential blocks prefixed by a block size and type. I believe the size is a 32 bit number. The type is four bytes and is intended to be ASCII for some measure of sanity when viewed in a hex editor. ie, moov being the QuickTime format used originally for QT movies only, the identifier makes perfect sense. A little more useless/random information, file(1) indicates that WAV files are RIFF WAVE. You guessed it, WAVE is the name of the block which contains the header information telling you that the file is PCM data, what rate, how many channels, etc. Caveat 1: Whether the block name or size comes first, I can't remember off the top of my head. Caveat 2: Given how much uses the moov format these days, I have to wonder if I'm not mistaken about its origins with QuickTime. Caveat 3: I'm not sure if moov is in fact just Amiga IFF and the only thing special about it is the signature tag. Caveat 4: In order for IFF to be binary XML, one must see nesting. Indeed, there is nesting, but not as much as you find with XML. At some point in the file, you wind up with one or more huge bloxks of data in some format specified either by the header or the name of the tag itself. Vaveat 5: There are too many caveats in this bit of useless information. @Knghtbrd LordHavoc: moov is basically IFF isn't it? @LordHavoc Knghtbrd: similar overall but not quite @LordHavoc Knghtbrd: 4 byte size, 8 byte name, then the data @LordHavoc Knghtbrd: IFF is 4 byte name, then 4 byte size, then the data @LordHavoc Knghtbrd: (same as RIFF and AIFF) @LordHavoc Knghtbrd: differences between IFF, RIFF, and AIFF are in name restrictions (IFF requires all names be uppercase, for example, RIFF and AIFF do not impose that restriction, and RIFF is little endian where as the other two are big endian) @LordHavoc Knghtbrd: and in completeness (IFF is a larger spec than RIFF and AIFF which do not support things like archives, catalogs, and certain other special constructs) @LordHavoc Knghtbrd: and of course in who runs the registration body @LordHavoc Knghtbrd: (all formats are supposed to be registered) moov begins with those four letters. After that is a Uint32 size, char name[8], and data. Nesting of tags is doable only because Apple has decided that it wants to do that - the data is a binary black box as far as the format is concerned. Interesting is that AIFC files on the mac are not in AIFF format, but actually moov format. That's enough useless information for one day. ;) ___ EuG-LUG mailing list [EMAIL PROTECTED] http://mailman.efn.org/cgi-bin/listinfo/eug-lug
[eug-lug]multimedia puzzle...
So, I have a couple weird problems, both unrelated... I have avi files that will not open under windows media player. This is really perplexing as avi's are basicly a much of .bmp's and wav file. Both .bmp and .wav are windows file formats, so I would assume any avi should play on any windows machine. File says: RIFF (little-endian) data, AVI But mplayer plays them fine, but windows media player wont. all it does is try to find the codec (says looking up codec server), then fails, then plays audio only. The other multimedia related issue... I have an avi file, plays fine on one linux computer. I ftp it to another computer (using gftp, binary transfer, passive mode). On the other computer it will not play! File outputs the same info on both computers. i ftp the file back to the original computer (same gftp and settings). the file back on the original computer (but not the same file, the original file is long gone by now...) will not play either, mplayer says something about no video... and rtc problem). As a side note, I noticed that file date was a day in advance after the first ftp, and checking both machines showed the correct date. What programs do you use for ftp? For the longest time, gftp was the only gui ftp client I could find. Now Ive found kbear, I tried it a couple weeks ago, and it seemed ok... I think I'll put it on one of my boxen and try it out again... I was quite surprised to boot up knoppix and find no gui ftp client (man that knoppix has everything except a gui ftp client!). oh yeah..one more thing Happy Hollidays :) Jamie -- panic(Fod fight!); -- In the kernel source aha1542.c, after detecting a bad segment list ___ EuG-LUG mailing list [EMAIL PROTECTED] http://mailman.efn.org/cgi-bin/listinfo/eug-lug
Re: [eug-lug]multimedia puzzle...
Most likely your avi are divx. Get your codecs. I use scp, nfs, or smb between my boxes. --- Linux Rocks ! [EMAIL PROTECTED] wrote: __ Do you Yahoo!? Protect your identity with Yahoo! Mail AddressGuard http://antispam.yahoo.com/whatsnewfree ___ EuG-LUG mailing list [EMAIL PROTECTED] http://mailman.efn.org/cgi-bin/listinfo/eug-lug
