Imported Debian version 2.5.2~trusty

[deb_ffmpeg.git] / ffmpeg / libswscale / swscale_internal.h

diff --git a/ffmpeg/libswscale/swscale_internal.h b/ffmpeg/libswscale/swscale_internal.h
index 335e1f8d7efcb413ff3321286a7fb326b4154956..37c2b37548a6ffd90ebad8eb6f6e08f9c2e13fd1 100644 (file)
--- a/ffmpeg/libswscale/swscale_internal.h
+++ b/ffmpeg/libswscale/swscale_internal.h
@@ -39,7 +39,7 @@
 
 #define STR(s) AV_TOSTRING(s) // AV_STRINGIFY is too long
 
-#define YUVRGB_TABLE_HEADROOM 128
+#define YUVRGB_TABLE_HEADROOM 256
 
 #define MAX_FILTER_SIZE SWS_MAX_FILTER_SIZE
 
@@ -61,6 +61,8 @@
 #   define APCK_SIZE 16
 #endif
 
+#define RETCODE_USE_CASCADE -12345
+
 struct SwsContext;
 
 typedef enum SwsDither {
@@ -301,6 +303,14 @@ typedef struct SwsContext {
     int sliceDir;                 ///< Direction that slices are fed to the scaler (1 = top-to-bottom, -1 = bottom-to-top).
     double param[2];              ///< Input parameters for scaling algorithms that need them.
 
+    /* The cascaded_* fields allow spliting a scaler task into multiple
+     * sequential steps, this is for example used to limit the maximum
+     * downscaling factor that needs to be supported in one scaler.
+     */
+    struct SwsContext *cascaded_context[2];
+    int cascaded_tmpStride[4];
+    uint8_t *cascaded_tmp[4];
+
     uint32_t pal_yuv[256];
     uint32_t pal_rgb[256];
 
@@ -611,14 +621,6 @@ av_cold void ff_sws_init_range_convert(SwsContext *c);
 SwsFunc ff_yuv2rgb_init_x86(SwsContext *c);
 SwsFunc ff_yuv2rgb_init_ppc(SwsContext *c);
 
-#if FF_API_SWS_FORMAT_NAME
-/**
- * @deprecated Use av_get_pix_fmt_name() instead.
- */
-attribute_deprecated
-const char *sws_format_name(enum AVPixelFormat format);
-#endif
-
 static av_always_inline int is16BPS(enum AVPixelFormat pix_fmt)
 {
     const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);