diff options
| author |  stefano <stefano@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2009-02-11 23:42:29 +0000 |
|---|---|---|
| committer | stefano <stefano@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2009-02-11 23:42:29 +0000 |
| commit | 6185600f50ba112848db3b019d9b22a13d46b700 (patch) | |
| tree | 5a09a0291548cfd7c84682c87207143bab68e74f | |
| parent | ceae4989a223fe4fd023564b49c474181ecb2d10 (diff) | |
Document sws_getContext().
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@28535 b3059339-0415-0410-9bf9-f77b7e298cf2
| -rw-r--r-- | libswscale/swscale.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/libswscale/swscale.h b/libswscale/swscale.h index cd86308a3e..8997f94a6e 100644 --- a/libswscale/swscale.h +++ b/libswscale/swscale.h @@ -114,6 +114,19 @@ struct SwsContext; void sws_freeContext(struct SwsContext *swsContext); +/** + * Allocates and returns a SwsContext. You need it to perform + * scaling/conversion operations using sws_scale(). + * + * @param srcW the width of the source image + * @param srcH the height of the source image + * @param srcFormat the source image format + * @param dstW the width of the destination image + * @param dstH the height of the destination image + * @param dstFormat the destination image format + * @param flags specify which algorithm and options to use for rescaling + * @return a pointer to an allocated context, or NULL in case of error + */ struct SwsContext *sws_getContext(int srcW, int srcH, enum PixelFormat srcFormat, int dstW, int dstH, enum PixelFormat dstFormat, int flags, SwsFilter *srcFilter, SwsFilter *dstFilter, double *param); int sws_scale(struct SwsContext *context, uint8_t* src[], int srcStride[], int srcSliceY, |