ryan/mozjpeg
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Wordsmithing

Browse Source 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/branches/1.3.x@961 632fc199-4ca6-4c93-a231-07263d6284db
This commit is contained in:
DRC
2013-04-26 08:54:10 +00:00
parent f0fe7e9603
commit 02cb7b444e
11 changed files with 18 additions and 18 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
turbojpeg.h
View File

@@ -603,13 +603,13 @@ DLLEXPORT unsigned long DLLCALL tjBufSizeYUV(int width, int height,
* uses the accelerated color conversion routines in TurboJPEG's underlying
* codec to produce a planar YUV image that is suitable for X Video.
* Specifically, if the chrominance components are subsampled along the
* horizontal dimension, then the width of the luminance plane is padded to 2
* in the output image (same goes for the height of the luminance plane, if the
* chrominance components are subsampled along the vertical dimension.) Also,
* each line of each plane in the output image is padded to 4 bytes. Although
* this will work with any subsampling option, it is really only useful in
* combination with TJ_420, which produces an image compatible with the I420
* (AKA "YUV420P") format.
* horizontal dimension, then the width of the luminance plane is padded to the
* nearest multiple of 2 in the output image (same goes for the height of the
* luminance plane, if the chrominance components are subsampled along the
* vertical dimension.) Also, each line of each plane in the output image is
* padded to 4 bytes. Although this will work with any subsampling option, it
* is really only useful in combination with TJ_420, which produces an image
* compatible with the I420 (AKA "YUV420P") format.
*
* @param handle a handle to a TurboJPEG compressor or transformer instance
* @param srcBuf pointer to an image buffer containing RGB or grayscale pixels