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Container benefits
Because both the MOV and MP4 containers can use the same MPEG-4 codecs, they are mostly interchangeable in a QuickTime-only environment. MP4, being an international standard, has more support. This is especially true on hardware devices, such as the Sony PSP and various DVD players; on the software side, most DirectShow / Video for Windows codec packs[23][24] include an MP4 parser, but not one for MOV.
In QuickTime Pro's MPEG-4 Export dialog, an option called "Passthrough" allows a clean export to MP4 without affecting the audio or video streams. One recent discrepancy ushered in by QuickTime 7 is that the MOV file format now supports multichannel audio (used, for example, in the high-definition trailers on Apple's site[25]), while QuickTime's support for audio in the MP4 container is limited to stereo |
Всего записей: 23 | Зарегистр. 29-11-2010 | Отправлено: 22:59 25-01-2011 | Исправлено: dsubuntu, 23:12 02-02-2011 |
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