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| author | Stefano Sabatini <stefano.sabatini-lala@poste.it> | 2009-02-11 23:42:29 +0000 |
|---|---|---|
| committer | Stefano Sabatini <stefano.sabatini-lala@poste.it> | 2009-02-11 23:42:29 +0000 |
| commit | a15886540bef18c5271f0df1ab4ba3b797e0b5fa (patch) | |
| tree | d9a7f5907f64c56a7f4d23e1d42074f6aa393f42 | |
| parent | bf6c32fe50e3ccca5b0c97db09fa6bfe86c6bc62 (diff) | |
| download | ffmpeg-a15886540bef18c5271f0df1ab4ba3b797e0b5fa.tar.gz | |
Document sws_getContext().
Originally committed as revision 28535 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale
| -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, |