Changes between Initial Version and Version 1 of Ticket #5071, comment 40


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Timestamp:
Dec 7, 2015, 6:28:03 AM (5 years ago)
Author:
matsp888
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  • Ticket #5071, comment 40

    initial v1  
    1 For the record, the original QuickTime file (and other files with Apple Graphics encoded video that I have here) has 0x0008 rather than 0xffff (-1) as its "color table ID" in the video sample description. From the QuickTime File Format specification, page 93:
     1For the record, the original QuickTime file (and other files with Apple Graphics encoded video that I have here) has 0x0008 rather than 0xffff (-1) as its "color table ID" in the video sample description. From the QuickTime File Format specification, page 93 (or page 118 for a later version from 2010):
    22
    33"Color table ID: A 16-bit integer that identifies which color table to use. If this field is set to –1, the default color table should be used for the specified depth. For all depths below 16 bits per pixel, this indicates a standard Macintosh color table for the specified depth. Depths of 16, 24, and 32 have no color table. If the color table ID is set to 0, a color table is contained within the sample description itself. The color table immediately follows the color table ID field in the sample description."