************************ * QuickTime Atom Hacks * ************************ - values use plain ASCII text numbers - general terms: integer = signed value - general values: byte/char/octet = one char value ; short/word = two char values ; long = four char values FILE INFO Suffixes = ".mov", ".qt" ; Mac OS Type = "MooV" ; Mac OS Creator = "TVOD" ; MIME="video/quicktime" Standard single fork ASCII text file that is used for server-side scripts to generate QT related text files on the fly or when a specific MIME is not registered on a host server. QUICKTIME 4 ATOM HACK STRUCTURE -> 1-4 bytes media type = byte to long ASCII uppercase text string - current types are Plain QT-styled text = 'TEXT' ; W3C SMIL = 'SMIL' - current types are RTSP link = 'RTSP' ; RFC SDP live session = 'SDP' -> 1-4 bytes media handler = byte to long ASCII text lowercase string - current type is Text Media Handler = 'text' -> 1 byte text separator = byte ASCII text character (eg. space or LF and/or CR) -> above specified data structure QUICKTIME 5 XML MIME BASED ATOM HACK LAYOUT above specified data structure QUICKTIME 4 ATOM HACK EXAMPLES *Plain QT-styled Text* TEXTtext {QTtext} {timeScale:30} {width:320} {height:240} {timeStamps:absolute} {language:1} {textEncoding:0} {font:courier} {size:12} {plain} {justify:left} {dropShadow:off} {anti-alias:off} {textColor: 65535, 65535, 65535} {backColor: 0, 0, 0} [00:00:00.00] {dropShadowOffset: 3, 4}{dropShadowTransparency:127}{plain}{size:12}{ScrollIn:on} {size:18}{textColor: 0, 0, 0}U P N {plain}{extend}{size:10} S E C O N D A R Y A F F I L I A T E {plain}{bold}{size:12}{textColor: 65535, 65535, 65535} SHOW: {plain}{size:10}{HREF: T<_blank>}PRODUCTION NAME{endHREF} {plain}{bold}{size:12} TITLE: {plain}{size:10}"episode" {plain}{bold}{size:12} AIR #: {plain}{size:10}UPN s## {plain}{bold}{size:12} PROD #: {plain}{size:10}#####-### {plain}{bold}{size:12} ID #: {plain}{size:10}TAPE - s## {plain}{bold}{size:12} CODE: {plain}{size:10}S## UPN s## LOC 1.0 {plain}{bold}{size:12} AUDIO: {plain}{size:10}STEREO {plain}{bold}{size:12} FEED DATE: {plain}{size:10}mm/dd/yyyy {plain}{bold}{size:12} PRODUCER: {plain}{size:10}{HREF: http://foo.com/}VIDEO PRODUCTION{endHREF} WK## [00:00:30.00] *W3C SMIL XML Tags* SMILtext

*RFC Session Descriptors* Note: The IETF have documented this in RFC 2327 SDPtext v=0 o=- 42945 9 IN IP4 0.0.0.0 s=Title of the Session i=Extended Information Text u=http://extended-info.web.site/ e=Session Contact p=Session Contact Phone Number <+1 123 555 6789> t=0 0 a=type:broadcast a=channel:Demo H.261 (Mbone) a=copyright:© whoever a=tool:Broadcaster Software a=cat:MBone/Others m=video 57170 RTP/AVP 31 32 96 c=IN IP4 0.0.0.0/0 b=AS:2500 a=framerate:30 a=rtpmap:96 WBIH/90000 a=source:video 0.0.0.0 file 1 loop m=audio 21116 RTP/AVP 0 c=IN IP4 0.0.0.0/0 b=AS:2500 a=source:audio 0.0.0.0 file 1 loop *Real Time Streaming link* RTSPtext rtsp://host:port/directory/streaming_file_01.mov width="320" height="240" timescale="600" duration="24000" offset="0" next="streaming_file_02.mov"