rename yuv matrix constants to be more clear about what they are

source/convert_from.cc

 /*
  *  Copyright 2012 The LibYuv Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS. All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 513 matching lines @@
 LIBYUV_API
 int I420ToRGBA(const uint8* src_y, int src_stride_y,
                const uint8* src_u, int src_stride_u,
                const uint8* src_v, int src_stride_v,
                uint8* dst_rgba, int dst_stride_rgba,
                int width, int height) {
   return I420ToRGBAMatrix(src_y, src_stride_y,
                           src_u, src_stride_u,
                           src_v, src_stride_v,
                           dst_rgba, dst_stride_rgba,
-                          &kYuvIConstants,
+                          &kYuvI601Constants,
                           width, height);
 }
 
 // Convert I420 to BGRA.
 LIBYUV_API
 int I420ToBGRA(const uint8* src_y, int src_stride_y,
                const uint8* src_u, int src_stride_u,
                const uint8* src_v, int src_stride_v,
                uint8* dst_bgra, int dst_stride_bgra,
                int width, int height) {
   return I420ToRGBAMatrix(src_y, src_stride_y,
                           src_v, src_stride_v,  // Swap U and V
                           src_u, src_stride_u,
                           dst_bgra, dst_stride_bgra,
-                          &kYvuIConstants,  // Use Yvu matrix
+                          &kYvuI601Constants,  // Use Yvu matrix
                           width, height);
 }
 
 // Convert I420 to RGB24 with matrix
 static int I420ToRGB24Matrix(const uint8* src_y, int src_stride_y,
                              const uint8* src_u, int src_stride_u,
                              const uint8* src_v, int src_stride_v,
                              uint8* dst_rgb24, int dst_stride_rgb24,
                              const struct YuvConstants* yuvconstants,
                              int width, int height) {
@@ skipping 55 matching lines @@
 LIBYUV_API
 int I420ToRGB24(const uint8* src_y, int src_stride_y,
                 const uint8* src_u, int src_stride_u,
                 const uint8* src_v, int src_stride_v,
                 uint8* dst_rgb24, int dst_stride_rgb24,
                 int width, int height) {
   return I420ToRGB24Matrix(src_y, src_stride_y,
                            src_u, src_stride_u,
                            src_v, src_stride_v,
                            dst_rgb24, dst_stride_rgb24,
-                           &kYuvIConstants,
+                           &kYuvI601Constants,
                            width, height);
 }
 
 // Convert I420 to RAW.
 LIBYUV_API
 int I420ToRAW(const uint8* src_y, int src_stride_y,
               const uint8* src_u, int src_stride_u,
               const uint8* src_v, int src_stride_v,
               uint8* dst_raw, int dst_stride_raw,
               int width, int height) {
   return I420ToRGB24Matrix(src_y, src_stride_y,
                            src_v, src_stride_v,  // Swap U and V
                            src_u, src_stride_u,
                            dst_raw, dst_stride_raw,
-                           &kYvuIConstants,  // Use Yvu matrix
+                           &kYvuI601Constants,  // Use Yvu matrix
                            width, height);
 }
 
 // Convert I420 to ARGB1555.
 LIBYUV_API
 int I420ToARGB1555(const uint8* src_y, int src_stride_y,
                    const uint8* src_u, int src_stride_u,
                    const uint8* src_v, int src_stride_v,
                    uint8* dst_argb1555, int dst_stride_argb1555,
                    int width, int height) {
@@ skipping 33 matching lines @@
 #if defined(HAS_I422TOARGB1555ROW_NEON)
   if (TestCpuFlag(kCpuHasNEON)) {
     I422ToARGB1555Row = I422ToARGB1555Row_Any_NEON;
     if (IS_ALIGNED(width, 8)) {
       I422ToARGB1555Row = I422ToARGB1555Row_NEON;
     }
   }
 #endif
 
   for (y = 0; y < height; ++y) {
-    I422ToARGB1555Row(src_y, src_u, src_v, dst_argb1555, &kYuvIConstants,
+    I422ToARGB1555Row(src_y, src_u, src_v, dst_argb1555, &kYuvI601Constants,
                       width);
     dst_argb1555 += dst_stride_argb1555;
     src_y += src_stride_y;
     if (y & 1) {
       src_u += src_stride_u;
       src_v += src_stride_v;
     }
   }
   return 0;
 }
@@ skipping 42 matching lines @@
 #if defined(HAS_I422TOARGB4444ROW_NEON)
   if (TestCpuFlag(kCpuHasNEON)) {
     I422ToARGB4444Row = I422ToARGB4444Row_Any_NEON;
     if (IS_ALIGNED(width, 8)) {
       I422ToARGB4444Row = I422ToARGB4444Row_NEON;
     }
   }
 #endif
 
   for (y = 0; y < height; ++y) {
-    I422ToARGB4444Row(src_y, src_u, src_v, dst_argb4444, &kYuvIConstants,
+    I422ToARGB4444Row(src_y, src_u, src_v, dst_argb4444, &kYuvI601Constants,
                       width);
     dst_argb4444 += dst_stride_argb4444;
     src_y += src_stride_y;
     if (y & 1) {
       src_u += src_stride_u;
       src_v += src_stride_v;
     }
   }
   return 0;
 }
@@ skipping 41 matching lines @@
 #if defined(HAS_I422TORGB565ROW_NEON)
   if (TestCpuFlag(kCpuHasNEON)) {
     I422ToRGB565Row = I422ToRGB565Row_Any_NEON;
     if (IS_ALIGNED(width, 8)) {
       I422ToRGB565Row = I422ToRGB565Row_NEON;
     }
   }
 #endif
 
   for (y = 0; y < height; ++y) {
-    I422ToRGB565Row(src_y, src_u, src_v, dst_rgb565, &kYuvIConstants, width);
+    I422ToRGB565Row(src_y, src_u, src_v, dst_rgb565, &kYuvI601Constants, width);
     dst_rgb565 += dst_stride_rgb565;
     src_y += src_stride_y;
     if (y & 1) {
       src_u += src_stride_u;
       src_v += src_stride_v;
     }
   }
   return 0;
 }
 
@@ skipping 87 matching lines @@
     ARGBToRGB565DitherRow = ARGBToRGB565DitherRow_Any_NEON;
     if (IS_ALIGNED(width, 8)) {
       ARGBToRGB565DitherRow = ARGBToRGB565DitherRow_NEON;
     }
   }
 #endif
   {
     // Allocate a row of argb.
     align_buffer_64(row_argb, width * 4);
     for (y = 0; y < height; ++y) {
-      I422ToARGBRow(src_y, src_u, src_v, row_argb, &kYuvIConstants, width);
+      I422ToARGBRow(src_y, src_u, src_v, row_argb, &kYuvI601Constants, width);
       ARGBToRGB565DitherRow(row_argb, dst_rgb565,
                             *(uint32*)(dither4x4 + ((y & 3) << 2)), width);
       dst_rgb565 += dst_stride_rgb565;
       src_y += src_stride_y;
       if (y & 1) {
         src_u += src_stride_u;
         src_v += src_stride_v;
       }
     }
     free_aligned_buffer_64(row_argb);
@@ skipping 220 matching lines @@
     default:
       return -1;  // unknown fourcc - return failure code.
   }
   return r;
 }
 
 #ifdef __cplusplus
 }  // extern "C"
 }  // namespace libyuv
 #endif