5 Commits

Author	SHA1	Message	Date
Justin Ruggles	c6698dfe7c	webpdec: Fix decoding of the huffman group indices. ... Per the specification, "The red and green components of a pixel define the meta Huffman code used in a particular block of the ARGB image."	2014-07-03 15:29:01 -04:00
Justin Ruggles	d085f80fa1	webp: add a special case for a huffman table with only 1 symbol ... The vlc reader cannot handle 0-bit huffman codes. For most situations WebP uses the "simple" huffman coding for this case, but that will only handle symbols up to 255. For the LZ77 distance codes, larger symbol values are needed, so it can happen in rare cases that a normal huffman table is used that only has a single symbol.	2013-12-05 20:37:06 -05:00
Justin Ruggles	f51e3a1971	webp: do not call av_frame_free() on the user-provided frame ... Fixes double-free on error.	2013-12-05 20:36:54 -05:00
Anton Khirnov	0a9e94bba8	webp: stop using deprecated avcodec_set_dimensions	2013-10-31 20:14:16 +01:00
Justin Ruggles	c4bfa09807	Add a WebP decoder ... Container and lossy decoding by Aneesh Dogra <aneesh@sugarlabs.org> Lossless decoding by Justin Ruggles <justin.ruggles@gmail.com>	2013-09-18 14:10:05 -04:00