diff options
Diffstat (limited to 'libavcodec/flashsv.c')
| -rw-r--r-- | libavcodec/flashsv.c | 22 |
1 files changed, 3 insertions, 19 deletions
diff --git a/libavcodec/flashsv.c b/libavcodec/flashsv.c index e3ddb74cee..4d8762c993 100644 --- a/libavcodec/flashsv.c +++ b/libavcodec/flashsv.c @@ -25,26 +25,10 @@ * Flash Screen Video decoder * @author Alex Beregszaszi * @author Benjamin Larsson - */ - -/* Bitstream description - * The picture is divided into blocks that are zlib compressed. - * - * The decoder is fed complete frames, the frameheader contains: - * 4bits of block width - * 12bits of frame width - * 4bits of block height - * 12bits of frame height - * - * Directly after the header are the compressed blocks. The blocks - * have their compressed size represented with 16bits in the beginnig. - * If the size = 0 then the block is unchanged from the previous frame. - * All blocks are decompressed until the buffer is consumed. * - * Encoding ideas, a basic encoder would just use a fixed block size. - * Block sizes can be multipels of 16, from 16 to 256. The blocks don't - * have to be quadratic. A brute force search with a set of diffrent - * block sizes should give a better result then to just use a fixed size. + * A description of the bitstream format for Flash Screen Video version 1/2 + * is part of the SWF File Format Specification (version 10), which can be + * downloaded from http://www.adobe.com/devnet/swf.html. */ #include <stdio.h> |