sparaig wrote: > --- In [email protected], Bhairitu <[EMAIL PROTECTED]> wrote: > >> sparaig wrote: >> >>> --- In [email protected], Bhairitu <noozguru@> wrote: >>> >>> >>>> sparaig wrote: >>>> However, what would MPEG-4 look like without QT? >>>> Apple didn't develop MPEG-4. >>>> >>>> >>>> >>> Pardon? The MPEG-4 file format is based on the QT file format. The beat out >>> > Microsoft's > >>> proposal (which was my point). >>> >> First off QT file format is what is known as a wrapper or container just >> as AVI is wrapper or container. It can contain different media. I know >> because I worked on QT file formats, know Apples use of pcode within >> these formats so I could convert from their format to another. MPEG >> standards for Motion Picture Experts Group who developed MPEG-1, MPEG-2 >> and MPEG-4. It is a consortium and yes Apple contributed to it. MPEG-4 >> is also known as h.264 which grew out of h.263. The latter is more open >> source so companies like Divx, Adobe, and the open source Xvid use it. >> Version 7 of Flash and earlier uses h.263. Adobe now uses On2 >> technologies compression. Apple's big contribution to AV from my >> recolletion was Firewire. >> >> > > As I said, Apple's QuickTime file format is the basis for the MPEG-4 file > format. Without > Apple and QUickTIme, we would probably be using the MS format. > > http://en.wikipedia.org/wiki/QuickTime#QuickTime_and_MPEG-4 > > QuickTime and MPEG-4 > > On February 11, 1998 the ISO approved the QuickTime file format as the basis > of the > MPEG-4 Part 14 (.mp4) container standard. Supporters of the move noted that > QuickTime > provided a good "life-cycle" format, well suited to capture, editing, > archiving, distribution, > and playback (as opposed to the simple file-as-stream approach of MPEG-1 and > MPEG-2, > which does not mesh well with editing)... Well Lawson Limbaugh bending things to fit your maya:
http://en.wikipedia.org/wiki/MPEG-4 From Wikipedia, the free encyclopedia MPEG-4 is a standard used primarily to compress audio and video (AV) digital data. Introduced in late 1998, it is the designation for a group of audio and video coding standards and related technology agreed upon by the ISO/IEC Moving Picture Experts Group (MPEG). The uses for the MPEG-4 standard are web (streaming media) and CD distribution, conversation (videophone), and broadcast television, all of which benefit from compressing the AV stream. MPEG-4 absorbs many of the features of MPEG-1 and MPEG-2 and other related standards, adding new features such as (extended) VRML support for 3D rendering, object-oriented composite files (including audio, video and VRML objects), support for externally-specified Digital Rights Management and various types of interactivity. AAC (Advanced Audio Codec) was standardized as an adjunct to MPEG-2 (as Part 7) before MPEG-4 was issued. Most of the features included in MPEG-4 are left to individual developers to decide whether to implement them. This means that there are probably no complete implementations of the entire MPEG-4 set of standards. To deal with this, the standard includes the concept of "profiles" and "levels", allowing a specific set of capabilities to be defined in a manner appropriate for a subset of applications." --- cut--- Do you see anything about QuickTime here? Do you really know anything about video programming? Have you ever written a demuxer or muxer? Do you know the MPEG format, sequence headers, etc? Have you ever written a stream parser? Dream on.
