tree 7ebab6a21a7fd250023f4bcbb240e0a443cfc836
parent bf12617456a95e6fca5fb42a43eb5c30e2917ee8
author Wan-Teh Chang <wtc@google.com> 1660694606 -0700
committer Wan-Teh Chang <wtc@google.com> 1660764108 -0700

Add the avifDecoder option 'imageDimensionLimit'

Add the avifDecoder option 'imageDimensionLimit', default to 32768. This
allows the decoder to reject extra large image widths or heights by
default. Note that our image size and dimension limits are essentially
the same as Chrome media's limits:
https://source.chromium.org/chromium/chromium/src/+/main:media/base/limits.h

  // Maximum possible dimension (width or height) for any video.
  constexpr int kMaxDimension = (1 << 15) - 1;  // 32767

  // Maximum possible canvas size (width multiplied by height) for any video.
  constexpr int kMaxCanvas = (1 << (14 * 2));  // 16384 x 16384

Add the --dimension-limit option to avifdec.

Add the internal utility function avifDimensionsTooLarge(), declared in
include/avif/internal.h and defined in src/avif.c.

Bug: b/242362974