Introduce swscale interface in libavcodec

Originally committed as revision 5266 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 38 insertions, 0 deletions

diff --git a/libavcodec/swscale.h b/libavcodec/swscale.h
new file mode 100644
index 0000000000..39ac0f1495
--- /dev/null
+++ b/libavcodec/swscale.h
@@ -0,0 +1,38 @@
+#ifndef SWSCALE_EMU_H
+#define SWSCALE_EMU_H
+/* Dummy, only useful for compilation! */
+#define SWS_FAST_BILINEAR 1
+#define SWS_BILINEAR 2
+#define SWS_BICUBIC  4
+#define SWS_X        8
+#define SWS_POINT    0x10
+#define SWS_AREA     0x20
+#define SWS_BICUBLIN 0x40
+#define SWS_GAUSS    0x80
+#define SWS_SINC     0x100
+#define SWS_LANCZOS  0x200
+#define SWS_SPLINE   0x400
+
+#define SwsFilter void
+struct SwsContext {
+    struct ImgReSampleContext *resampling_ctx;
+    enum PixelFormat src_pix_fmt, dst_pix_fmt;
+};
+
+struct SwsContext *sws_getContext(int srcW, int srcH, int srcFormat,
+                                  int dstW, int dstH, int dstFormat,
+                                  int flags, SwsFilter *srcFilter,
+                                  SwsFilter *dstFilter, double *param);
+
+int sws_scale(struct SwsContext *ctx, uint8_t* src[], int srcStride[],
+              int srcSliceY, int srcSliceH, uint8_t* dst[], int dstStride[]);
+
+void sws_freeContext(struct SwsContext *swsContext);
+
+static inline void sws_global_init(void *(*alloc)(unsigned int size),
+                     void (*free)(void *ptr),
+                     void (*log)(void*, int level, const char *fmt, ...))
+{
+}
+
+#endif /* SWSCALE_EMU_H */