#define SWSCALE_SWSCALE_H
/**
- * @file libswscale/swscale.h
+ * @file
* @brief
* external api for the swscale stuff
*/
#include "libavutil/avutil.h"
#define LIBSWSCALE_VERSION_MAJOR 0
-#define LIBSWSCALE_VERSION_MINOR 8
+#define LIBSWSCALE_VERSION_MINOR 14
#define LIBSWSCALE_VERSION_MICRO 0
#define LIBSWSCALE_VERSION_INT AV_VERSION_INT(LIBSWSCALE_VERSION_MAJOR, \
#define LIBSWSCALE_IDENT "SwS" AV_STRINGIFY(LIBSWSCALE_VERSION)
+/**
+ * Those FF_API_* defines are not part of public API.
+ * They may change, break or disappear at any time.
+ */
+#ifndef FF_API_SWS_GETCONTEXT
+#define FF_API_SWS_GETCONTEXT (LIBSWSCALE_VERSION_MAJOR < 2)
+#endif
+
/**
* Returns the LIBSWSCALE_VERSION_INT constant.
*/
#define SWS_CPU_CAPS_3DNOW 0x40000000
#define SWS_CPU_CAPS_ALTIVEC 0x10000000
#define SWS_CPU_CAPS_BFIN 0x01000000
+#define SWS_CPU_CAPS_SSE2 0x02000000
#define SWS_MAX_REDUCE_CUTOFF 0.002
#define SWS_CS_SMPTE240M 7
#define SWS_CS_DEFAULT 5
+/**
+ * Returns a pointer to yuv<->rgb coefficients for the given colorspace
+ * suitable for sws_setColorspaceDetails().
+ *
+ * @param colorspace One of the SWS_CS_* macros. If invalid,
+ * SWS_CS_DEFAULT is used.
+ */
+const int *sws_getCoefficients(int colorspace);
// when used for filters they must have an odd number of elements
*/
int sws_isSupportedOutput(enum PixelFormat pix_fmt);
+/**
+ * Allocates an empty SwsContext. This must be filled and passed to
+ * sws_init_context(). For filling see AVOptions, options.c and
+ * sws_setColorspaceDetails().
+ */
+struct SwsContext *sws_alloc_context(void);
+
+/**
+ * Initializes the swscaler context sws_context.
+ *
+ * @return zero or positive value on success, a negative value on
+ * error
+ */
+int sws_init_context(struct SwsContext *sws_context, SwsFilter *srcFilter, SwsFilter *dstFilter);
+
/**
* Frees the swscaler context swsContext.
* If swsContext is NULL, then does nothing.
*/
void sws_freeContext(struct SwsContext *swsContext);
+#if FF_API_SWS_GETCONTEXT
/**
* Allocates and returns a SwsContext. You need it to perform
* scaling/conversion operations using sws_scale().
* @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
+ * @note this function is to be removed after a saner alternative is
+ * written
*/
struct SwsContext *sws_getContext(int srcW, int srcH, enum PixelFormat srcFormat,
int dstW, int dstH, enum PixelFormat dstFormat,
int flags, SwsFilter *srcFilter,
SwsFilter *dstFilter, const double *param);
+#endif
/**
* Scales the image slice in srcSlice and puts the resulting scaled
* the destination image
* @return the height of the output slice
*/
-int sws_scale(struct SwsContext *context, const uint8_t* const srcSlice[], int srcStride[],
- int srcSliceY, int srcSliceH, uint8_t* dst[], int dstStride[]);
+int sws_scale(struct SwsContext *context, const uint8_t* const srcSlice[], const int srcStride[],
+ int srcSliceY, int srcSliceH, uint8_t* const dst[], const int dstStride[]);
+
#if LIBSWSCALE_VERSION_MAJOR < 1
/**
* @deprecated Use sws_scale() instead.
int flags, SwsFilter *srcFilter,
SwsFilter *dstFilter, const double *param);
+/**
+ * Converts an 8bit paletted frame into a frame with a color depth of 32-bits.
+ *
+ * The output frame will have the same packed format as the palette.
+ *
+ * @param src source frame buffer
+ * @param dst destination frame buffer
+ * @param num_pixels number of pixels to convert
+ * @param palette array with [256] entries, which must match color arrangement (RGB or BGR) of src
+ */
+void sws_convertPalette8ToPacked32(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette);
+
+/**
+ * Converts an 8bit paletted frame into a frame with a color depth of 24 bits.
+ *
+ * With the palette format "ABCD", the destination frame ends up with the format "ABC".
+ *
+ * @param src source frame buffer
+ * @param dst destination frame buffer
+ * @param num_pixels number of pixels to convert
+ * @param palette array with [256] entries, which must match color arrangement (RGB or BGR) of src
+ */
+void sws_convertPalette8ToPacked24(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette);
+
+
#endif /* SWSCALE_SWSCALE_H */