MJPGToNV21

Add jpeg to NV21 conversions, unittests and conversions
for I444, I422, I420 and I420 to NV21 needed for internals.

Bug: libyuv:820
Change-Id: Idf0f15f91307e80a82cd23943f6eed5508f13fe2
Tested: out/Release/libyuv_unittest --sandbox_unittests --gtest_filter=*MJ*
Reviewed-on: https://chromium-review.googlesource.com/c/1297710Reviewed-by: Johann Koenig <johannkoenig@google.com>

README.chromium

 Name: libyuv
 URL: http://code.google.com/p/libyuv/
-Version: 1719
+Version: 1720
 License: BSD
 License File: LICENSE
 

include/libyuv/convert.h

@@ -42,6 +42,21 @@ int I444ToI420(const uint8_t* src_y,
                int width,
                int height);
 
+// Convert I444 to NV21.
+LIBYUV_API
+int I444ToNV21(const uint8_t* src_y,
+               int src_stride_y,
+               const uint8_t* src_u,
+               int src_stride_u,
+               const uint8_t* src_v,
+               int src_stride_v,
+               uint8_t* dst_y,
+               int dst_stride_y,
+               uint8_t* dst_vu,
+               int dst_stride_vu,
+               int width,
+               int height);
+
 // Convert I422 to I420.
 LIBYUV_API
 int I422ToI420(const uint8_t* src_y,
@@ -59,6 +74,21 @@ int I422ToI420(const uint8_t* src_y,
                int width,
                int height);
 
+// Convert I422 to NV21.
+LIBYUV_API
+int I422ToNV21(const uint8_t* src_y,
+               int src_stride_y,
+               const uint8_t* src_u,
+               int src_stride_u,
+               const uint8_t* src_v,
+               int src_stride_v,
+               uint8_t* dst_y,
+               int dst_stride_y,
+               uint8_t* dst_vu,
+               int dst_stride_vu,
+               int width,
+               int height);
+
 // Copy I420 to I420.
 #define I420ToI420 I420Copy
 LIBYUV_API
@@ -127,6 +157,17 @@ int I400ToI420(const uint8_t* src_y,
                int width,
                int height);
 
+// Convert I400 (grey) to NV21.
+LIBYUV_API
+int I400ToNV21(const uint8_t* src_y,
+               int src_stride_y,
+               uint8_t* dst_y,
+               int dst_stride_y,
+               uint8_t* dst_vu,
+               int dst_stride_vu,
+               int width,
+               int height);
+
 #define J400ToJ420 I400ToI420
 
 // Convert NV12 to I420.
@@ -350,6 +391,19 @@ int MJPGToI420(const uint8_t* sample,
                int dst_width,
                int dst_height);
 
+// JPEG to NV21
+LIBYUV_API
+int MJPGToNV21(const uint8_t* sample,
+               size_t sample_size,
+               uint8_t* dst_y,
+               int dst_stride_y,
+               uint8_t* dst_vu,
+               int dst_stride_vu,
+               int src_width,
+               int src_height,
+               int dst_width,
+               int dst_height);
+
 // Query size of MJPG in pixels.
 LIBYUV_API
 int MJPGSize(const uint8_t* sample,

include/libyuv/version.h

@@ -11,6 +11,6 @@
 #ifndef INCLUDE_LIBYUV_VERSION_H_
 #define INCLUDE_LIBYUV_VERSION_H_
 
-#define LIBYUV_VERSION 1719
+#define LIBYUV_VERSION 1720
 
 #endif  // INCLUDE_LIBYUV_VERSION_H_

source/convert.cc

@@ -215,6 +215,195 @@ int I422ToI420(const uint8_t* src_y,
                     dst_v, dst_stride_v, width, height, src_uv_width, height);
 }
 
+// TODO(fbarchard): Implement row conversion.
+LIBYUV_API
+int I422ToNV21(const uint8_t* src_y,
+               int src_stride_y,
+               const uint8_t* src_u,
+               int src_stride_u,
+               const uint8_t* src_v,
+               int src_stride_v,
+               uint8_t* dst_y,
+               int dst_stride_y,
+               uint8_t* dst_vu,
+               int dst_stride_vu,
+               int width,
+               int height) {
+  int halfwidth = (width + 1) >> 1;
+  int halfheight = (height + 1) >> 1;
+  // Negative height means invert the image.
+  if (height < 0) {
+    height = -height;
+    halfheight = (height + 1) >> 1;
+    src_y = src_y + (height - 1) * src_stride_y;
+    src_u = src_u + (height - 1) * src_stride_u;
+    src_v = src_v + (height - 1) * src_stride_v;
+    src_stride_y = -src_stride_y;
+    src_stride_u = -src_stride_u;
+    src_stride_v = -src_stride_v;
+  }
+
+  // Allocate u and v buffers
+  align_buffer_64(plane_u, halfwidth * halfheight * 2);
+  uint8_t* plane_v = plane_u + halfwidth * halfheight;
+
+  I422ToI420(src_y, src_stride_y, src_u, src_stride_u, src_v, src_stride_v,
+             dst_y, dst_stride_y, plane_u, halfwidth, plane_v, halfwidth, width,
+             height);
+  MergeUVPlane(plane_v, halfwidth, plane_u, halfwidth, dst_vu, dst_stride_vu,
+               halfwidth, halfheight);
+  free_aligned_buffer_64(plane_u);
+  return 0;
+}
+
+#ifdef I422TONV21_ROW_VERSION
+// Unittest fails for this version.
+// 422 chroma is 1/2 width, 1x height
+// 420 chroma is 1/2 width, 1/2 height
+// Swap src_u and src_v to implement I422ToNV12
+LIBYUV_API
+int I422ToNV21(const uint8_t* src_y,
+               int src_stride_y,
+               const uint8_t* src_u,
+               int src_stride_u,
+               const uint8_t* src_v,
+               int src_stride_v,
+               uint8_t* dst_y,
+               int dst_stride_y,
+               uint8_t* dst_vu,
+               int dst_stride_vu,
+               int width,
+               int height) {
+  int y;
+  void (*MergeUVRow)(const uint8_t* src_u, const uint8_t* src_v,
+                     uint8_t* dst_uv, int width) = MergeUVRow_C;
+  void (*InterpolateRow)(uint8_t * dst_ptr, const uint8_t* src_ptr,
+                         ptrdiff_t src_stride, int dst_width,
+                         int source_y_fraction) = InterpolateRow_C;
+  int halfwidth = (width + 1) >> 1;
+  int halfheight = (height + 1) >> 1;
+  if (!src_u || !src_v || !dst_vu || width <= 0 || height == 0) {
+    return -1;
+  }
+  // Negative height means invert the image.
+  if (height < 0) {
+    height = -height;
+    halfheight = (height + 1) >> 1;
+    src_y = src_y + (height - 1) * src_stride_y;
+    src_u = src_u + (halfheight - 1) * src_stride_u;
+    src_v = src_v + (halfheight - 1) * src_stride_v;
+    src_stride_y = -src_stride_y;
+    src_stride_u = -src_stride_u;
+    src_stride_v = -src_stride_v;
+  }
+#if defined(HAS_MERGEUVROW_SSE2)
+  if (TestCpuFlag(kCpuHasSSE2)) {
+    MergeUVRow = MergeUVRow_Any_SSE2;
+    if (IS_ALIGNED(halfwidth, 16)) {
+      MergeUVRow = MergeUVRow_SSE2;
+    }
+  }
+#endif
+#if defined(HAS_MERGEUVROW_AVX2)
+  if (TestCpuFlag(kCpuHasAVX2)) {
+    MergeUVRow = MergeUVRow_Any_AVX2;
+    if (IS_ALIGNED(halfwidth, 32)) {
+      MergeUVRow = MergeUVRow_AVX2;
+    }
+  }
+#endif
+#if defined(HAS_MERGEUVROW_NEON)
+  if (TestCpuFlag(kCpuHasNEON)) {
+    MergeUVRow = MergeUVRow_Any_NEON;
+    if (IS_ALIGNED(halfwidth, 16)) {
+      MergeUVRow = MergeUVRow_NEON;
+    }
+  }
+#endif
+#if defined(HAS_MERGEUVROW_MSA)
+  if (TestCpuFlag(kCpuHasMSA)) {
+    MergeUVRow = MergeUVRow_Any_MSA;
+    if (IS_ALIGNED(halfwidth, 16)) {
+      MergeUVRow = MergeUVRow_MSA;
+    }
+  }
+#endif
+#if defined(HAS_MERGEUVROW_MMI)
+  if (TestCpuFlag(kCpuHasMMI)) {
+    MergeUVRow = MergeUVRow_Any_MMI;
+    if (IS_ALIGNED(halfwidth, 8)) {
+      MergeUVRow = MergeUVRow_MMI;
+    }
+  }
+#endif
+#if defined(HAS_INTERPOLATEROW_SSSE3)
+  if (TestCpuFlag(kCpuHasSSSE3)) {
+    InterpolateRow = InterpolateRow_Any_SSSE3;
+    if (IS_ALIGNED(width, 16)) {
+      InterpolateRow = InterpolateRow_SSSE3;
+    }
+  }
+#endif
+#if defined(HAS_INTERPOLATEROW_AVX2)
+  if (TestCpuFlag(kCpuHasAVX2)) {
+    InterpolateRow = InterpolateRow_Any_AVX2;
+    if (IS_ALIGNED(width, 32)) {
+      InterpolateRow = InterpolateRow_AVX2;
+    }
+  }
+#endif
+#if defined(HAS_INTERPOLATEROW_NEON)
+  if (TestCpuFlag(kCpuHasNEON)) {
+    InterpolateRow = InterpolateRow_Any_NEON;
+    if (IS_ALIGNED(width, 16)) {
+      InterpolateRow = InterpolateRow_NEON;
+    }
+  }
+#endif
+#if defined(HAS_INTERPOLATEROW_MSA)
+  if (TestCpuFlag(kCpuHasMSA)) {
+    InterpolateRow = InterpolateRow_Any_MSA;
+    if (IS_ALIGNED(width, 32)) {
+      InterpolateRow = InterpolateRow_MSA;
+    }
+  }
+#endif
+#if defined(HAS_INTERPOLATEROW_MMI)
+  if (TestCpuFlag(kCpuHasMMI)) {
+    InterpolateRow = InterpolateRow_Any_MMI;
+    if (IS_ALIGNED(width, 8)) {
+      InterpolateRow = InterpolateRow_MMI;
+    }
+  }
+#endif
+
+  if (dst_y) {
+    CopyPlane(src_y, src_stride_y, dst_y, dst_stride_y, halfwidth, height);
+  }
+  {
+    // Allocate 2 rows of vu.
+    int awidth = halfwidth * 2;
+    align_buffer_64(row_vu_0, awidth * 2);
+    uint8_t* row_vu_1 = row_vu_0 + awidth;
+
+    for (y = 0; y < height - 1; y += 2) {
+      MergeUVRow(src_v, src_u, row_vu_0, halfwidth);
+      MergeUVRow(src_v + src_stride_v, src_u + src_stride_u, row_vu_1,
+                 halfwidth);
+      InterpolateRow(dst_vu, row_vu_0, awidth, awidth, 128);
+      src_u += src_stride_u * 2;
+      src_v += src_stride_v * 2;
+      dst_vu += dst_stride_vu;
+    }
+    if (height & 1) {
+      MergeUVRow(src_v, src_u, dst_vu, halfwidth);
+    }
+    free_aligned_buffer_64(row_vu_0);
+  }
+  return 0;
+}
+#endif  // I422TONV21_ROW_VERSION
+
 // 444 chroma is 1x width, 1x height
 // 420 chroma is 1/2 width, 1/2 height
 LIBYUV_API
@@ -237,6 +426,46 @@ int I444ToI420(const uint8_t* src_y,
                     dst_v, dst_stride_v, width, height, width, height);
 }
 
+// TODO(fbarchard): Implement row conversion.
+LIBYUV_API
+int I444ToNV21(const uint8_t* src_y,
+               int src_stride_y,
+               const uint8_t* src_u,
+               int src_stride_u,
+               const uint8_t* src_v,
+               int src_stride_v,
+               uint8_t* dst_y,
+               int dst_stride_y,
+               uint8_t* dst_vu,
+               int dst_stride_vu,
+               int width,
+               int height) {
+  int halfwidth = (width + 1) >> 1;
+  int halfheight = (height + 1) >> 1;
+  // Negative height means invert the image.
+  if (height < 0) {
+    height = -height;
+    halfheight = (height + 1) >> 1;
+    src_y = src_y + (height - 1) * src_stride_y;
+    src_u = src_u + (height - 1) * src_stride_u;
+    src_v = src_v + (height - 1) * src_stride_v;
+    src_stride_y = -src_stride_y;
+    src_stride_u = -src_stride_u;
+    src_stride_v = -src_stride_v;
+  }
+  // Allocate u and v buffers
+  align_buffer_64(plane_u, halfwidth * halfheight * 2);
+  uint8_t* plane_v = plane_u + halfwidth * halfheight;
+
+  I444ToI420(src_y, src_stride_y, src_u, src_stride_u, src_v, src_stride_v,
+             dst_y, dst_stride_y, plane_u, halfwidth, plane_v, halfwidth, width,
+             height);
+  MergeUVPlane(plane_v, halfwidth, plane_u, halfwidth, dst_vu, dst_stride_vu,
+               halfwidth, halfheight);
+  free_aligned_buffer_64(plane_u);
+  return 0;
+}
+
 // I400 is greyscale typically used in MJPG
 LIBYUV_API
 int I400ToI420(const uint8_t* src_y,
@@ -269,6 +498,35 @@ int I400ToI420(const uint8_t* src_y,
   return 0;
 }
 
+// I400 is greyscale typically used in MJPG
+LIBYUV_API
+int I400ToNV21(const uint8_t* src_y,
+               int src_stride_y,
+               uint8_t* dst_y,
+               int dst_stride_y,
+               uint8_t* dst_vu,
+               int dst_stride_vu,
+               int width,
+               int height) {
+  int halfwidth = (width + 1) >> 1;
+  int halfheight = (height + 1) >> 1;
+  if (!dst_vu || width <= 0 || height == 0) {
+    return -1;
+  }
+  // Negative height means invert the image.
+  if (height < 0) {
+    height = -height;
+    halfheight = (height + 1) >> 1;
+    src_y = src_y + (height - 1) * src_stride_y;
+    src_stride_y = -src_stride_y;
+  }
+  if (dst_y) {
+    CopyPlane(src_y, src_stride_y, dst_y, dst_stride_y, width, height);
+  }
+  SetPlane(dst_vu, dst_stride_vu, halfwidth * 2, halfheight, 128);
+  return 0;
+}
+
 static void CopyPlane2(const uint8_t* src,
                        int src_stride_0,
                        int src_stride_1,

source/convert_jpeg.cc

@@ -190,7 +190,144 @@ int MJPGToI420(const uint8_t* sample,
   return ret ? 0 : 1;
 }
 
-#ifdef HAVE_JPEG
+struct NV21Buffers {
+  uint8_t* y;
+  int y_stride;
+  uint8_t* vu;
+  int vu_stride;
+  int w;
+  int h;
+};
+
+static void JpegI420ToNV21(void* opaque,
+                           const uint8_t* const* data,
+                           const int* strides,
+                           int rows) {
+  NV21Buffers* dest = (NV21Buffers*)(opaque);
+  I420ToNV21(data[0], strides[0], data[1], strides[1], data[2], strides[2],
+             dest->y, dest->y_stride, dest->vu, dest->vu_stride, dest->w, rows);
+  dest->y += rows * dest->y_stride;
+  dest->vu += ((rows + 1) >> 1) * dest->vu_stride;
+  dest->h -= rows;
+}
+
+static void JpegI422ToNV21(void* opaque,
+                           const uint8_t* const* data,
+                           const int* strides,
+                           int rows) {
+  NV21Buffers* dest = (NV21Buffers*)(opaque);
+  I422ToNV21(data[0], strides[0], data[1], strides[1], data[2], strides[2],
+             dest->y, dest->y_stride, dest->vu, dest->vu_stride, dest->w, rows);
+  dest->y += rows * dest->y_stride;
+  dest->vu += ((rows + 1) >> 1) * dest->vu_stride;
+  dest->h -= rows;
+}
+
+static void JpegI444ToNV21(void* opaque,
+                           const uint8_t* const* data,
+                           const int* strides,
+                           int rows) {
+  NV21Buffers* dest = (NV21Buffers*)(opaque);
+  I444ToNV21(data[0], strides[0], data[1], strides[1], data[2], strides[2],
+             dest->y, dest->y_stride, dest->vu, dest->vu_stride, dest->w, rows);
+  dest->y += rows * dest->y_stride;
+  dest->vu += ((rows + 1) >> 1) * dest->vu_stride;
+  dest->h -= rows;
+}
+
+static void JpegI400ToNV21(void* opaque,
+                           const uint8_t* const* data,
+                           const int* strides,
+                           int rows) {
+  NV21Buffers* dest = (NV21Buffers*)(opaque);
+  I400ToNV21(data[0], strides[0], dest->y, dest->y_stride, dest->vu,
+             dest->vu_stride, dest->w, rows);
+  dest->y += rows * dest->y_stride;
+  dest->vu += ((rows + 1) >> 1) * dest->vu_stride;
+  dest->h -= rows;
+}
+
+// MJPG (Motion JPeg) to NV21
+LIBYUV_API
+int MJPGToNV21(const uint8_t* sample,
+               size_t sample_size,
+               uint8_t* dst_y,
+               int dst_stride_y,
+               uint8_t* dst_vu,
+               int dst_stride_vu,
+               int src_width,
+               int src_height,
+               int dst_width,
+               int dst_height) {
+  if (sample_size == kUnknownDataSize) {
+    // ERROR: MJPEG frame size unknown
+    return -1;
+  }
+
+  // TODO(fbarchard): Port MJpeg to C.
+  MJpegDecoder mjpeg_decoder;
+  LIBYUV_BOOL ret = mjpeg_decoder.LoadFrame(sample, sample_size);
+  if (ret && (mjpeg_decoder.GetWidth() != src_width ||
+              mjpeg_decoder.GetHeight() != src_height)) {
+    // ERROR: MJPEG frame has unexpected dimensions
+    mjpeg_decoder.UnloadFrame();
+    return 1;  // runtime failure
+  }
+  if (ret) {
+    NV21Buffers bufs = {dst_y,         dst_stride_y, dst_vu,
+                        dst_stride_vu, dst_width,    dst_height};
+    // YUV420
+    if (mjpeg_decoder.GetColorSpace() == MJpegDecoder::kColorSpaceYCbCr &&
+        mjpeg_decoder.GetNumComponents() == 3 &&
+        mjpeg_decoder.GetVertSampFactor(0) == 2 &&
+        mjpeg_decoder.GetHorizSampFactor(0) == 2 &&
+        mjpeg_decoder.GetVertSampFactor(1) == 1 &&
+        mjpeg_decoder.GetHorizSampFactor(1) == 1 &&
+        mjpeg_decoder.GetVertSampFactor(2) == 1 &&
+        mjpeg_decoder.GetHorizSampFactor(2) == 1) {
+      ret = mjpeg_decoder.DecodeToCallback(&JpegI420ToNV21, &bufs, dst_width,
+                                           dst_height);
+      // YUV422
+    } else if (mjpeg_decoder.GetColorSpace() ==
+                   MJpegDecoder::kColorSpaceYCbCr &&
+               mjpeg_decoder.GetNumComponents() == 3 &&
+               mjpeg_decoder.GetVertSampFactor(0) == 1 &&
+               mjpeg_decoder.GetHorizSampFactor(0) == 2 &&
+               mjpeg_decoder.GetVertSampFactor(1) == 1 &&
+               mjpeg_decoder.GetHorizSampFactor(1) == 1 &&
+               mjpeg_decoder.GetVertSampFactor(2) == 1 &&
+               mjpeg_decoder.GetHorizSampFactor(2) == 1) {
+      ret = mjpeg_decoder.DecodeToCallback(&JpegI422ToNV21, &bufs, dst_width,
+                                           dst_height);
+      // YUV444
+    } else if (mjpeg_decoder.GetColorSpace() ==
+                   MJpegDecoder::kColorSpaceYCbCr &&
+               mjpeg_decoder.GetNumComponents() == 3 &&
+               mjpeg_decoder.GetVertSampFactor(0) == 1 &&
+               mjpeg_decoder.GetHorizSampFactor(0) == 1 &&
+               mjpeg_decoder.GetVertSampFactor(1) == 1 &&
+               mjpeg_decoder.GetHorizSampFactor(1) == 1 &&
+               mjpeg_decoder.GetVertSampFactor(2) == 1 &&
+               mjpeg_decoder.GetHorizSampFactor(2) == 1) {
+      ret = mjpeg_decoder.DecodeToCallback(&JpegI444ToNV21, &bufs, dst_width,
+                                           dst_height);
+      // YUV400
+    } else if (mjpeg_decoder.GetColorSpace() ==
+                   MJpegDecoder::kColorSpaceGrayscale &&
+               mjpeg_decoder.GetNumComponents() == 1 &&
+               mjpeg_decoder.GetVertSampFactor(0) == 1 &&
+               mjpeg_decoder.GetHorizSampFactor(0) == 1) {
+      ret = mjpeg_decoder.DecodeToCallback(&JpegI400ToNV21, &bufs, dst_width,
+                                           dst_height);
+    } else {
+      // Unknown colorspace.
+      mjpeg_decoder.UnloadFrame();
+      return 1;
+    }
+  }
+  return ret ? 0 : 1;
+}
+
 struct ARGBBuffers {
   uint8_t* argb;
   int argb_stride;
@@ -322,9 +459,8 @@ int MJPGToARGB(const uint8_t* sample,
   }
   return ret ? 0 : 1;
 }
-#endif
 
-#endif
+#endif  // HAVE_JPEG
 
 #ifdef __cplusplus
 }  // extern "C"

unit_test/convert_test.cc

@@ -281,6 +281,23 @@ TESTAPLANARTOP(Android420, I420, 1, 0, 0, 2, 2, I420, 2, 2)
 TESTAPLANARTOP(Android420, NV12, 2, 0, 1, 2, 2, I420, 2, 2)
 TESTAPLANARTOP(Android420, NV21, 2, 1, 0, 2, 2, I420, 2, 2)
 
+// wrapper to keep API the same
+int I400ToNV21(const uint8_t* src_y,
+               int src_stride_y,
+               const uint8_t* /* src_u */,
+               int /* src_stride_u */,
+               const uint8_t* /* src_v */,
+               int /* src_stride_v */,
+               uint8_t* dst_y,
+               int dst_stride_y,
+               uint8_t* dst_vu,
+               int dst_stride_vu,
+               int width,
+               int height) {
+  return I400ToNV21(src_y, src_stride_y, dst_y, dst_stride_y, dst_vu,
+                    dst_stride_vu, width, height);
+}
+
 #define TESTPLANARTOBPI(SRC_FMT_PLANAR, SRC_SUBSAMP_X, SRC_SUBSAMP_Y,         \
                         FMT_PLANAR, SUBSAMP_X, SUBSAMP_Y, W1280, N, NEG, OFF) \
   TEST_F(LibYUVConvertTest, SRC_FMT_PLANAR##To##FMT_PLANAR##N) {              \
@@ -374,6 +391,9 @@ TESTAPLANARTOP(Android420, NV21, 2, 1, 0, 2, 2, I420, 2, 2)
 
 TESTPLANARTOBP(I420, 2, 2, NV12, 2, 2)
 TESTPLANARTOBP(I420, 2, 2, NV21, 2, 2)
+TESTPLANARTOBP(I422, 2, 1, NV21, 2, 2)
+TESTPLANARTOBP(I444, 1, 1, NV21, 2, 2)
+TESTPLANARTOBP(I400, 2, 2, NV21, 2, 2)
 
 #define TESTBIPLANARTOPI(SRC_FMT_PLANAR, SRC_SUBSAMP_X, SRC_SUBSAMP_Y,         \
                          FMT_PLANAR, SUBSAMP_X, SUBSAMP_Y, W1280, N, NEG, OFF, \
@@ -1360,72 +1380,613 @@ TEST_F(LibYUVConvertTest, FuzzJpeg) {
   }
 }
 
-TEST_F(LibYUVConvertTest, MJPGToI420) {
-  const int kOff = 10;
-  const int kMinJpeg = 64;
-  const int kImageSize = benchmark_width_ * benchmark_height_ >= kMinJpeg
-                             ? benchmark_width_ * benchmark_height_
-                             : kMinJpeg;
-  const int kSize = kImageSize + kOff;
-  align_buffer_page_end(orig_pixels, kSize);
-  align_buffer_page_end(dst_y_opt, benchmark_width_ * benchmark_height_);
-  align_buffer_page_end(dst_u_opt, SUBSAMPLE(benchmark_width_, 2) *
-                                       SUBSAMPLE(benchmark_height_, 2));
-  align_buffer_page_end(dst_v_opt, SUBSAMPLE(benchmark_width_, 2) *
-                                       SUBSAMPLE(benchmark_height_, 2));
+// Test data created in GIMP.  In export jpeg, disable thumbnails etc,
+// choose a subsampling, and use low quality (50) to keep size small.
+// Generated with xxd -i test.jpg
+// test 0 is J400
+static const uint8_t kTest0Jpg[] = {
+    0xff, 0xd8, 0xff, 0xe0, 0x00, 0x10, 0x4a, 0x46, 0x49, 0x46, 0x00, 0x01,
+    0x01, 0x01, 0x00, 0x48, 0x00, 0x48, 0x00, 0x00, 0xff, 0xdb, 0x00, 0x43,
+    0x00, 0x10, 0x0b, 0x0c, 0x0e, 0x0c, 0x0a, 0x10, 0x0e, 0x0d, 0x0e, 0x12,
+    0x11, 0x10, 0x13, 0x18, 0x28, 0x1a, 0x18, 0x16, 0x16, 0x18, 0x31, 0x23,
+    0x25, 0x1d, 0x28, 0x3a, 0x33, 0x3d, 0x3c, 0x39, 0x33, 0x38, 0x37, 0x40,
+    0x48, 0x5c, 0x4e, 0x40, 0x44, 0x57, 0x45, 0x37, 0x38, 0x50, 0x6d, 0x51,
+    0x57, 0x5f, 0x62, 0x67, 0x68, 0x67, 0x3e, 0x4d, 0x71, 0x79, 0x70, 0x64,
+    0x78, 0x5c, 0x65, 0x67, 0x63, 0xff, 0xc2, 0x00, 0x0b, 0x08, 0x00, 0x10,
+    0x00, 0x20, 0x01, 0x01, 0x11, 0x00, 0xff, 0xc4, 0x00, 0x17, 0x00, 0x01,
+    0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x03, 0x04, 0x01, 0x02, 0xff, 0xda, 0x00, 0x08, 0x01,
+    0x01, 0x00, 0x00, 0x00, 0x01, 0x43, 0x7e, 0xa7, 0x97, 0x57, 0xff, 0xc4,
+    0x00, 0x1b, 0x10, 0x00, 0x03, 0x00, 0x02, 0x03, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x02, 0x11, 0x00, 0x03,
+    0x10, 0x12, 0x13, 0xff, 0xda, 0x00, 0x08, 0x01, 0x01, 0x00, 0x01, 0x05,
+    0x02, 0x3b, 0xc0, 0x6f, 0x66, 0x76, 0x56, 0x23, 0x87, 0x99, 0x0d, 0x26,
+    0x62, 0xf6, 0xbf, 0xff, 0xc4, 0x00, 0x1e, 0x10, 0x00, 0x02, 0x01, 0x03,
+    0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x11, 0x21, 0x02, 0x12, 0x32, 0x10, 0x31, 0x71, 0x81, 0xa1, 0xff,
+    0xda, 0x00, 0x08, 0x01, 0x01, 0x00, 0x06, 0x3f, 0x02, 0x4b, 0xb3, 0x28,
+    0x32, 0xd2, 0xed, 0xf9, 0x1d, 0x3e, 0x13, 0x51, 0x73, 0x83, 0xff, 0xc4,
+    0x00, 0x1c, 0x10, 0x01, 0x01, 0x01, 0x00, 0x02, 0x03, 0x01, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x11, 0x00, 0x21, 0x51,
+    0x31, 0x61, 0x81, 0xf0, 0xff, 0xda, 0x00, 0x08, 0x01, 0x01, 0x00, 0x01,
+    0x3f, 0x21, 0x65, 0x6e, 0x31, 0x86, 0x28, 0xf9, 0x30, 0xdc, 0x27, 0xdb,
+    0xa9, 0x01, 0xf3, 0xde, 0x02, 0xa0, 0xed, 0x1e, 0x34, 0x68, 0x23, 0xf9,
+    0xc6, 0x48, 0x5d, 0x7a, 0x35, 0x02, 0xf5, 0x6f, 0xff, 0xda, 0x00, 0x08,
+    0x01, 0x01, 0x00, 0x00, 0x00, 0x10, 0x35, 0xff, 0xc4, 0x00, 0x1f, 0x10,
+    0x01, 0x00, 0x02, 0x01, 0x04, 0x03, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x11, 0x31, 0x41, 0x61, 0x71, 0x91,
+    0x21, 0x81, 0xd1, 0xb1, 0xff, 0xda, 0x00, 0x08, 0x01, 0x01, 0x00, 0x01,
+    0x3f, 0x10, 0x0b, 0x30, 0xe9, 0x58, 0xbe, 0x1a, 0xfd, 0x88, 0xab, 0x8b,
+    0x34, 0x74, 0x80, 0x4b, 0xb5, 0xd5, 0xab, 0xcd, 0x46, 0x96, 0x2e, 0xec,
+    0xbd, 0xaa, 0x78, 0x47, 0x5c, 0x47, 0xa7, 0x30, 0x49, 0xad, 0x88, 0x7c,
+    0x40, 0x74, 0x30, 0xff, 0x00, 0x23, 0x1d, 0x03, 0x0b, 0xb7, 0xd4, 0xff,
+    0xd9};
+static const size_t kTest0JpgLen = 421;
+
+// test 1 is J444
+static const uint8_t kTest1Jpg[] = {
+    0xff, 0xd8, 0xff, 0xe0, 0x00, 0x10, 0x4a, 0x46, 0x49, 0x46, 0x00, 0x01,
+    0x01, 0x01, 0x00, 0x48, 0x00, 0x48, 0x00, 0x00, 0xff, 0xdb, 0x00, 0x43,
+    0x00, 0x10, 0x0b, 0x0c, 0x0e, 0x0c, 0x0a, 0x10, 0x0e, 0x0d, 0x0e, 0x12,
+    0x11, 0x10, 0x13, 0x18, 0x28, 0x1a, 0x18, 0x16, 0x16, 0x18, 0x31, 0x23,
+    0x25, 0x1d, 0x28, 0x3a, 0x33, 0x3d, 0x3c, 0x39, 0x33, 0x38, 0x37, 0x40,
+    0x48, 0x5c, 0x4e, 0x40, 0x44, 0x57, 0x45, 0x37, 0x38, 0x50, 0x6d, 0x51,
+    0x57, 0x5f, 0x62, 0x67, 0x68, 0x67, 0x3e, 0x4d, 0x71, 0x79, 0x70, 0x64,
+    0x78, 0x5c, 0x65, 0x67, 0x63, 0xff, 0xdb, 0x00, 0x43, 0x01, 0x11, 0x12,
+    0x12, 0x18, 0x15, 0x18, 0x2f, 0x1a, 0x1a, 0x2f, 0x63, 0x42, 0x38, 0x42,
+    0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63,
+    0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63,
+    0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63,
+    0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63,
+    0x63, 0x63, 0xff, 0xc2, 0x00, 0x11, 0x08, 0x00, 0x10, 0x00, 0x20, 0x03,
+    0x01, 0x11, 0x00, 0x02, 0x11, 0x01, 0x03, 0x11, 0x01, 0xff, 0xc4, 0x00,
+    0x17, 0x00, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x04, 0x01, 0x02, 0xff, 0xc4,
+    0x00, 0x16, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x01, 0x03, 0xff, 0xda,
+    0x00, 0x0c, 0x03, 0x01, 0x00, 0x02, 0x10, 0x03, 0x10, 0x00, 0x00, 0x01,
+    0x40, 0x8f, 0x26, 0xe8, 0xf4, 0xcc, 0xf9, 0x69, 0x2b, 0x1b, 0x2a, 0xcb,
+    0xff, 0xc4, 0x00, 0x1b, 0x10, 0x00, 0x03, 0x00, 0x02, 0x03, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x02, 0x11,
+    0x00, 0x03, 0x10, 0x12, 0x13, 0xff, 0xda, 0x00, 0x08, 0x01, 0x01, 0x00,
+    0x01, 0x05, 0x02, 0x3b, 0x80, 0x6f, 0x56, 0x76, 0x56, 0x23, 0x87, 0x99,
+    0x0d, 0x26, 0x62, 0xf6, 0xbf, 0xff, 0xc4, 0x00, 0x19, 0x11, 0x01, 0x00,
+    0x03, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x01, 0x00, 0x10, 0x11, 0x02, 0x12, 0xff, 0xda, 0x00, 0x08,
+    0x01, 0x03, 0x01, 0x01, 0x3f, 0x01, 0xf1, 0x00, 0x27, 0x45, 0xbb, 0x31,
+    0xaf, 0xff, 0xc4, 0x00, 0x1a, 0x11, 0x00, 0x02, 0x03, 0x01, 0x01, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
+    0x02, 0x10, 0x11, 0x41, 0x12, 0xff, 0xda, 0x00, 0x08, 0x01, 0x02, 0x01,
+    0x01, 0x3f, 0x01, 0xf6, 0x4b, 0x5f, 0x48, 0xb3, 0x69, 0x63, 0x35, 0x72,
+    0xbf, 0xff, 0xc4, 0x00, 0x1e, 0x10, 0x00, 0x02, 0x01, 0x03, 0x05, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x11,
+    0x21, 0x02, 0x12, 0x32, 0x10, 0x31, 0x71, 0x81, 0xa1, 0xff, 0xda, 0x00,
+    0x08, 0x01, 0x01, 0x00, 0x06, 0x3f, 0x02, 0x4b, 0xb3, 0x28, 0x32, 0xd2,
+    0xed, 0xf9, 0x1d, 0x3e, 0x13, 0x51, 0x73, 0x83, 0xff, 0xc4, 0x00, 0x1c,
+    0x10, 0x01, 0x01, 0x01, 0x00, 0x02, 0x03, 0x01, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x11, 0x00, 0x21, 0x51, 0x31, 0x61,
+    0x81, 0xf0, 0xff, 0xda, 0x00, 0x08, 0x01, 0x01, 0x00, 0x01, 0x3f, 0x21,
+    0x75, 0x6e, 0x31, 0x94, 0x28, 0xf9, 0x30, 0xdc, 0x27, 0xdb, 0xa9, 0x01,
+    0xf3, 0xde, 0x02, 0xa0, 0xed, 0x1e, 0x34, 0x68, 0x23, 0xf9, 0xc6, 0x48,
+    0x5d, 0x7a, 0x35, 0x02, 0xf5, 0x6f, 0xff, 0xda, 0x00, 0x0c, 0x03, 0x01,
+    0x00, 0x02, 0x00, 0x03, 0x00, 0x00, 0x00, 0x10, 0x26, 0x61, 0xd4, 0xff,
+    0xc4, 0x00, 0x1a, 0x11, 0x00, 0x03, 0x01, 0x00, 0x03, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x11, 0x21,
+    0x31, 0x41, 0x51, 0xff, 0xda, 0x00, 0x08, 0x01, 0x03, 0x01, 0x01, 0x3f,
+    0x10, 0x54, 0xa8, 0xbf, 0x50, 0x87, 0xb0, 0x9d, 0x8b, 0xc4, 0x6a, 0x26,
+    0x6b, 0x2a, 0x9c, 0x1f, 0xff, 0xc4, 0x00, 0x18, 0x11, 0x01, 0x01, 0x01,
+    0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x01, 0x00, 0x11, 0x21, 0x51, 0xff, 0xda, 0x00, 0x08, 0x01, 0x02,
+    0x01, 0x01, 0x3f, 0x10, 0x70, 0xe1, 0x3e, 0xd1, 0x8e, 0x0d, 0xe1, 0xb5,
+    0xd5, 0x91, 0x76, 0x43, 0x82, 0x45, 0x4c, 0x7b, 0x7f, 0xff, 0xc4, 0x00,
+    0x1f, 0x10, 0x01, 0x00, 0x02, 0x01, 0x04, 0x03, 0x01, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x11, 0x31, 0x41, 0x61,
+    0x71, 0x91, 0x21, 0x81, 0xd1, 0xb1, 0xff, 0xda, 0x00, 0x08, 0x01, 0x01,
+    0x00, 0x01, 0x3f, 0x10, 0x1b, 0x30, 0xe9, 0x58, 0xbe, 0x1a, 0xfd, 0x8a,
+    0xeb, 0x8b, 0x34, 0x74, 0x80, 0x4b, 0xb5, 0xd5, 0xab, 0xcd, 0x46, 0x96,
+    0x2e, 0xec, 0xbd, 0xaa, 0x78, 0x47, 0x5c, 0x47, 0xa7, 0x30, 0x49, 0xad,
+    0x88, 0x7c, 0x40, 0x74, 0x30, 0xff, 0x00, 0x23, 0x1d, 0x03, 0x0b, 0xb7,
+    0xd4, 0xff, 0xd9};
+static const size_t kTest1JpgLen = 735;
+
+// test 2 is J420
+static const uint8_t kTest2Jpg[] = {
+    0xff, 0xd8, 0xff, 0xe0, 0x00, 0x10, 0x4a, 0x46, 0x49, 0x46, 0x00, 0x01,
+    0x01, 0x01, 0x00, 0x48, 0x00, 0x48, 0x00, 0x00, 0xff, 0xdb, 0x00, 0x43,
+    0x00, 0x10, 0x0b, 0x0c, 0x0e, 0x0c, 0x0a, 0x10, 0x0e, 0x0d, 0x0e, 0x12,
+    0x11, 0x10, 0x13, 0x18, 0x28, 0x1a, 0x18, 0x16, 0x16, 0x18, 0x31, 0x23,
+    0x25, 0x1d, 0x28, 0x3a, 0x33, 0x3d, 0x3c, 0x39, 0x33, 0x38, 0x37, 0x40,
+    0x48, 0x5c, 0x4e, 0x40, 0x44, 0x57, 0x45, 0x37, 0x38, 0x50, 0x6d, 0x51,
+    0x57, 0x5f, 0x62, 0x67, 0x68, 0x67, 0x3e, 0x4d, 0x71, 0x79, 0x70, 0x64,
+    0x78, 0x5c, 0x65, 0x67, 0x63, 0xff, 0xdb, 0x00, 0x43, 0x01, 0x11, 0x12,
+    0x12, 0x18, 0x15, 0x18, 0x2f, 0x1a, 0x1a, 0x2f, 0x63, 0x42, 0x38, 0x42,
+    0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63,
+    0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63,
+    0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63,
+    0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63,
+    0x63, 0x63, 0xff, 0xc2, 0x00, 0x11, 0x08, 0x00, 0x10, 0x00, 0x20, 0x03,
+    0x01, 0x22, 0x00, 0x02, 0x11, 0x01, 0x03, 0x11, 0x01, 0xff, 0xc4, 0x00,
+    0x18, 0x00, 0x00, 0x02, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x05, 0x01, 0x02, 0x04, 0xff,
+    0xc4, 0x00, 0x16, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x01, 0x02, 0xff,
+    0xda, 0x00, 0x0c, 0x03, 0x01, 0x00, 0x02, 0x10, 0x03, 0x10, 0x00, 0x00,
+    0x01, 0x20, 0xe7, 0x28, 0xa3, 0x0b, 0x2e, 0x2d, 0xcf, 0xff, 0xc4, 0x00,
+    0x1b, 0x10, 0x00, 0x03, 0x00, 0x02, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x02, 0x11, 0x00, 0x03, 0x10,
+    0x12, 0x13, 0xff, 0xda, 0x00, 0x08, 0x01, 0x01, 0x00, 0x01, 0x05, 0x02,
+    0x3b, 0x80, 0x6f, 0x56, 0x76, 0x56, 0x23, 0x87, 0x99, 0x0d, 0x26, 0x62,
+    0xf6, 0xbf, 0xff, 0xc4, 0x00, 0x17, 0x11, 0x01, 0x00, 0x03, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x01, 0x11, 0x21, 0xff, 0xda, 0x00, 0x08, 0x01, 0x03, 0x01, 0x01, 0x3f,
+    0x01, 0xc8, 0x53, 0xff, 0xc4, 0x00, 0x16, 0x11, 0x01, 0x01, 0x01, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x11, 0x32, 0xff, 0xda, 0x00, 0x08, 0x01, 0x02, 0x01, 0x01, 0x3f,
+    0x01, 0xd2, 0xc7, 0xff, 0xc4, 0x00, 0x1e, 0x10, 0x00, 0x02, 0x01, 0x03,
+    0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x11, 0x21, 0x02, 0x12, 0x32, 0x10, 0x31, 0x71, 0x81, 0xa1, 0xff,
+    0xda, 0x00, 0x08, 0x01, 0x01, 0x00, 0x06, 0x3f, 0x02, 0x4b, 0xb3, 0x28,
+    0x32, 0xd2, 0xed, 0xf9, 0x1d, 0x3e, 0x13, 0x51, 0x73, 0x83, 0xff, 0xc4,
+    0x00, 0x1c, 0x10, 0x01, 0x01, 0x01, 0x00, 0x02, 0x03, 0x01, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x11, 0x00, 0x21, 0x51,
+    0x31, 0x61, 0x81, 0xf0, 0xff, 0xda, 0x00, 0x08, 0x01, 0x01, 0x00, 0x01,
+    0x3f, 0x21, 0x75, 0x6e, 0x31, 0x94, 0x28, 0xf9, 0x30, 0xdc, 0x27, 0xdb,
+    0xa9, 0x01, 0xf3, 0xde, 0x02, 0xa0, 0xed, 0x1e, 0x34, 0x68, 0x23, 0xf9,
+    0xc6, 0x48, 0x5d, 0x7a, 0x35, 0x02, 0xf5, 0x6f, 0xff, 0xda, 0x00, 0x0c,
+    0x03, 0x01, 0x00, 0x02, 0x00, 0x03, 0x00, 0x00, 0x00, 0x10, 0x13, 0x5f,
+    0xff, 0xc4, 0x00, 0x17, 0x11, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x11,
+    0x21, 0xff, 0xda, 0x00, 0x08, 0x01, 0x03, 0x01, 0x01, 0x3f, 0x10, 0x0e,
+    0xa1, 0x3a, 0x76, 0xff, 0xc4, 0x00, 0x17, 0x11, 0x01, 0x01, 0x01, 0x01,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x01, 0x00, 0x21, 0x11, 0xff, 0xda, 0x00, 0x08, 0x01, 0x02, 0x01, 0x01,
+    0x3f, 0x10, 0x57, 0x0b, 0x08, 0x70, 0xdb, 0xff, 0xc4, 0x00, 0x1f, 0x10,
+    0x01, 0x00, 0x02, 0x01, 0x04, 0x03, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x11, 0x31, 0x41, 0x61, 0x71, 0x91,
+    0x21, 0x81, 0xd1, 0xb1, 0xff, 0xda, 0x00, 0x08, 0x01, 0x01, 0x00, 0x01,
+    0x3f, 0x10, 0x1b, 0x30, 0xe9, 0x58, 0xbe, 0x1a, 0xfd, 0x8a, 0xeb, 0x8b,
+    0x34, 0x74, 0x80, 0x4b, 0xb5, 0xd5, 0xab, 0xcd, 0x46, 0x96, 0x2e, 0xec,
+    0xbd, 0xaa, 0x78, 0x47, 0x5c, 0x47, 0xa7, 0x30, 0x49, 0xad, 0x88, 0x7c,
+    0x40, 0x74, 0x30, 0xff, 0x00, 0x23, 0x1d, 0x03, 0x0b, 0xb7, 0xd4, 0xff,
+    0xd9};
+static const size_t kTest2JpgLen = 685;
+
+// test 3 is J422
+static const uint8_t kTest3Jpg[] = {
+    0xff, 0xd8, 0xff, 0xe0, 0x00, 0x10, 0x4a, 0x46, 0x49, 0x46, 0x00, 0x01,
+    0x01, 0x01, 0x00, 0x48, 0x00, 0x48, 0x00, 0x00, 0xff, 0xdb, 0x00, 0x43,
+    0x00, 0x10, 0x0b, 0x0c, 0x0e, 0x0c, 0x0a, 0x10, 0x0e, 0x0d, 0x0e, 0x12,
+    0x11, 0x10, 0x13, 0x18, 0x28, 0x1a, 0x18, 0x16, 0x16, 0x18, 0x31, 0x23,
+    0x25, 0x1d, 0x28, 0x3a, 0x33, 0x3d, 0x3c, 0x39, 0x33, 0x38, 0x37, 0x40,
+    0x48, 0x5c, 0x4e, 0x40, 0x44, 0x57, 0x45, 0x37, 0x38, 0x50, 0x6d, 0x51,
+    0x57, 0x5f, 0x62, 0x67, 0x68, 0x67, 0x3e, 0x4d, 0x71, 0x79, 0x70, 0x64,
+    0x78, 0x5c, 0x65, 0x67, 0x63, 0xff, 0xdb, 0x00, 0x43, 0x01, 0x11, 0x12,
+    0x12, 0x18, 0x15, 0x18, 0x2f, 0x1a, 0x1a, 0x2f, 0x63, 0x42, 0x38, 0x42,
+    0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63,
+    0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63,
+    0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63,
+    0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63,
+    0x63, 0x63, 0xff, 0xc2, 0x00, 0x11, 0x08, 0x00, 0x10, 0x00, 0x20, 0x03,
+    0x01, 0x21, 0x00, 0x02, 0x11, 0x01, 0x03, 0x11, 0x01, 0xff, 0xc4, 0x00,
+    0x17, 0x00, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x04, 0x01, 0x02, 0xff, 0xc4,
+    0x00, 0x17, 0x01, 0x00, 0x03, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x02, 0x03, 0x00, 0xff,
+    0xda, 0x00, 0x0c, 0x03, 0x01, 0x00, 0x02, 0x10, 0x03, 0x10, 0x00, 0x00,
+    0x01, 0x43, 0x8d, 0x1f, 0xa2, 0xb3, 0xca, 0x1b, 0x57, 0x0f, 0xff, 0xc4,
+    0x00, 0x1b, 0x10, 0x00, 0x03, 0x00, 0x02, 0x03, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x02, 0x11, 0x00, 0x03,
+    0x10, 0x12, 0x13, 0xff, 0xda, 0x00, 0x08, 0x01, 0x01, 0x00, 0x01, 0x05,
+    0x02, 0x3b, 0x80, 0x6f, 0x56, 0x76, 0x56, 0x23, 0x87, 0x99, 0x0d, 0x26,
+    0x62, 0xf6, 0xbf, 0xff, 0xc4, 0x00, 0x19, 0x11, 0x00, 0x02, 0x03, 0x01,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x01, 0x02, 0x10, 0x11, 0x21, 0xff, 0xda, 0x00, 0x08, 0x01, 0x03,
+    0x01, 0x01, 0x3f, 0x01, 0x51, 0xce, 0x8c, 0x75, 0xff, 0xc4, 0x00, 0x18,
+    0x11, 0x00, 0x03, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x02, 0x61, 0x21, 0xff, 0xda,
+    0x00, 0x08, 0x01, 0x02, 0x01, 0x01, 0x3f, 0x01, 0xa6, 0xd9, 0x2f, 0x84,
+    0xe8, 0xf0, 0xff, 0xc4, 0x00, 0x1e, 0x10, 0x00, 0x02, 0x01, 0x03, 0x05,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x11, 0x21, 0x02, 0x12, 0x32, 0x10, 0x31, 0x71, 0x81, 0xa1, 0xff, 0xda,
+    0x00, 0x08, 0x01, 0x01, 0x00, 0x06, 0x3f, 0x02, 0x4b, 0xb3, 0x28, 0x32,
+    0xd2, 0xed, 0xf9, 0x1d, 0x3e, 0x13, 0x51, 0x73, 0x83, 0xff, 0xc4, 0x00,
+    0x1c, 0x10, 0x01, 0x01, 0x01, 0x00, 0x02, 0x03, 0x01, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x11, 0x00, 0x21, 0x51, 0x31,
+    0x61, 0x81, 0xf0, 0xff, 0xda, 0x00, 0x08, 0x01, 0x01, 0x00, 0x01, 0x3f,
+    0x21, 0x75, 0x6e, 0x31, 0x94, 0x28, 0xf9, 0x30, 0xdc, 0x27, 0xdb, 0xa9,
+    0x01, 0xf3, 0xde, 0x02, 0xa0, 0xed, 0x1e, 0x34, 0x68, 0x23, 0xf9, 0xc6,
+    0x48, 0x5d, 0x7a, 0x35, 0x02, 0xf5, 0x6f, 0xff, 0xda, 0x00, 0x0c, 0x03,
+    0x01, 0x00, 0x02, 0x00, 0x03, 0x00, 0x00, 0x00, 0x10, 0x2e, 0x45, 0xff,
+    0xc4, 0x00, 0x18, 0x11, 0x00, 0x03, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x11, 0x21,
+    0x31, 0xff, 0xda, 0x00, 0x08, 0x01, 0x03, 0x01, 0x01, 0x3f, 0x10, 0x53,
+    0x50, 0xba, 0x54, 0xc1, 0x67, 0x4f, 0xff, 0xc4, 0x00, 0x18, 0x11, 0x00,
+    0x03, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x01, 0x11, 0x21, 0x00, 0x10, 0xff, 0xda, 0x00, 0x08,
+    0x01, 0x02, 0x01, 0x01, 0x3f, 0x10, 0x18, 0x81, 0x5c, 0x04, 0x1a, 0xca,
+    0x91, 0xbf, 0xff, 0xc4, 0x00, 0x1f, 0x10, 0x01, 0x00, 0x02, 0x01, 0x04,
+    0x03, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
+    0x00, 0x11, 0x31, 0x41, 0x61, 0x71, 0x91, 0x21, 0x81, 0xd1, 0xb1, 0xff,
+    0xda, 0x00, 0x08, 0x01, 0x01, 0x00, 0x01, 0x3f, 0x10, 0x1b, 0x30, 0xe9,
+    0x58, 0xbe, 0x1a, 0xfd, 0x8a, 0xeb, 0x8b, 0x34, 0x74, 0x80, 0x4b, 0xb5,
+    0xd5, 0xab, 0xcd, 0x46, 0x96, 0x2e, 0xec, 0xbd, 0xaa, 0x78, 0x47, 0x5c,
+    0x47, 0xa7, 0x30, 0x49, 0xad, 0x88, 0x7c, 0x40, 0x74, 0x30, 0xff, 0x00,
+    0x23, 0x1d, 0x03, 0x0b, 0xb7, 0xd4, 0xff, 0xd9};
+static const size_t kTest3JpgLen = 704;
+
+// test 4 is J422 vertical - not supported
+static const uint8_t kTest4Jpg[] = {
+    0xff, 0xd8, 0xff, 0xe0, 0x00, 0x10, 0x4a, 0x46, 0x49, 0x46, 0x00, 0x01,
+    0x01, 0x01, 0x00, 0x48, 0x00, 0x48, 0x00, 0x00, 0xff, 0xdb, 0x00, 0x43,
+    0x00, 0x10, 0x0b, 0x0c, 0x0e, 0x0c, 0x0a, 0x10, 0x0e, 0x0d, 0x0e, 0x12,
+    0x11, 0x10, 0x13, 0x18, 0x28, 0x1a, 0x18, 0x16, 0x16, 0x18, 0x31, 0x23,
+    0x25, 0x1d, 0x28, 0x3a, 0x33, 0x3d, 0x3c, 0x39, 0x33, 0x38, 0x37, 0x40,
+    0x48, 0x5c, 0x4e, 0x40, 0x44, 0x57, 0x45, 0x37, 0x38, 0x50, 0x6d, 0x51,
+    0x57, 0x5f, 0x62, 0x67, 0x68, 0x67, 0x3e, 0x4d, 0x71, 0x79, 0x70, 0x64,
+    0x78, 0x5c, 0x65, 0x67, 0x63, 0xff, 0xdb, 0x00, 0x43, 0x01, 0x11, 0x12,
+    0x12, 0x18, 0x15, 0x18, 0x2f, 0x1a, 0x1a, 0x2f, 0x63, 0x42, 0x38, 0x42,
+    0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63,
+    0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63,
+    0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63,
+    0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63,
+    0x63, 0x63, 0xff, 0xc2, 0x00, 0x11, 0x08, 0x00, 0x10, 0x00, 0x20, 0x03,
+    0x01, 0x12, 0x00, 0x02, 0x11, 0x01, 0x03, 0x11, 0x01, 0xff, 0xc4, 0x00,
+    0x18, 0x00, 0x00, 0x02, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0x05, 0x01, 0x02, 0x03, 0xff,
+    0xc4, 0x00, 0x16, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x03, 0xff,
+    0xda, 0x00, 0x0c, 0x03, 0x01, 0x00, 0x02, 0x10, 0x03, 0x10, 0x00, 0x00,
+    0x01, 0xd2, 0x98, 0xe9, 0x03, 0x0c, 0x00, 0x46, 0x21, 0xd9, 0xff, 0xc4,
+    0x00, 0x1b, 0x10, 0x00, 0x03, 0x00, 0x02, 0x03, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x02, 0x11, 0x00, 0x03,
+    0x10, 0x12, 0x13, 0xff, 0xda, 0x00, 0x08, 0x01, 0x01, 0x00, 0x01, 0x05,
+    0x02, 0x3b, 0x80, 0x6f, 0x56, 0x76, 0x56, 0x23, 0x87, 0x99, 0x0d, 0x26,
+    0x62, 0xf6, 0xbf, 0xff, 0xc4, 0x00, 0x17, 0x11, 0x01, 0x01, 0x01, 0x01,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x11, 0x01, 0x21, 0xff, 0xda, 0x00, 0x08, 0x01, 0x03, 0x01, 0x01,
+    0x3f, 0x01, 0x98, 0xb1, 0xbd, 0x47, 0xff, 0xc4, 0x00, 0x18, 0x11, 0x00,
+    0x03, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x01, 0x12, 0x11, 0x21, 0xff, 0xda, 0x00, 0x08,
+    0x01, 0x02, 0x01, 0x01, 0x3f, 0x01, 0xb6, 0x35, 0xa2, 0xe1, 0x47, 0xff,
+    0xc4, 0x00, 0x1e, 0x10, 0x00, 0x02, 0x01, 0x03, 0x05, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x11, 0x21, 0x02,
+    0x12, 0x32, 0x10, 0x31, 0x71, 0x81, 0xa1, 0xff, 0xda, 0x00, 0x08, 0x01,
+    0x01, 0x00, 0x06, 0x3f, 0x02, 0x4b, 0xb3, 0x28, 0x32, 0xd2, 0xed, 0xf9,
+    0x1d, 0x3e, 0x13, 0x51, 0x73, 0x83, 0xff, 0xc4, 0x00, 0x1c, 0x10, 0x01,
+    0x01, 0x01, 0x00, 0x02, 0x03, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x01, 0x11, 0x00, 0x21, 0x51, 0x31, 0x61, 0x81, 0xf0,
+    0xff, 0xda, 0x00, 0x08, 0x01, 0x01, 0x00, 0x01, 0x3f, 0x21, 0x75, 0x6e,
+    0x31, 0x94, 0x28, 0xf9, 0x30, 0xdc, 0x27, 0xdb, 0xa9, 0x01, 0xf3, 0xde,
+    0x02, 0xa0, 0xed, 0x1e, 0x34, 0x68, 0x23, 0xf9, 0xc6, 0x48, 0x5d, 0x7a,
+    0x35, 0x02, 0xf5, 0x6f, 0xff, 0xda, 0x00, 0x0c, 0x03, 0x01, 0x00, 0x02,
+    0x00, 0x03, 0x00, 0x00, 0x00, 0x10, 0x24, 0xaf, 0xff, 0xc4, 0x00, 0x19,
+    0x11, 0x00, 0x03, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x11, 0x51, 0x21, 0x31, 0xff,
+    0xda, 0x00, 0x08, 0x01, 0x03, 0x01, 0x01, 0x3f, 0x10, 0x59, 0x11, 0xca,
+    0x42, 0x60, 0x9f, 0x69, 0xff, 0xc4, 0x00, 0x19, 0x11, 0x00, 0x02, 0x03,
+    0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x01, 0x11, 0x21, 0x31, 0x61, 0xff, 0xda, 0x00, 0x08, 0x01,
+    0x02, 0x01, 0x01, 0x3f, 0x10, 0xb0, 0xd7, 0x27, 0x51, 0xb6, 0x41, 0xff,
+    0xc4, 0x00, 0x1f, 0x10, 0x01, 0x00, 0x02, 0x01, 0x04, 0x03, 0x01, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x11, 0x31,
+    0x41, 0x61, 0x71, 0x91, 0x21, 0x81, 0xd1, 0xb1, 0xff, 0xda, 0x00, 0x08,
+    0x01, 0x01, 0x00, 0x01, 0x3f, 0x10, 0x1b, 0x30, 0xe9, 0x58, 0xbe, 0x1a,
+    0xfd, 0x8a, 0xeb, 0x8b, 0x34, 0x74, 0x80, 0x4b, 0xb5, 0xd5, 0xab, 0xcd,
+    0x46, 0x96, 0x2e, 0xec, 0xbd, 0xaa, 0x78, 0x47, 0x5c, 0x47, 0xa7, 0x30,
+    0x49, 0xad, 0x88, 0x7c, 0x40, 0x74, 0x30, 0xff, 0x00, 0x23, 0x1d, 0x03,
+    0x0b, 0xb7, 0xd4, 0xff, 0xd9};
+static const size_t kTest4JpgLen = 701;
+
+TEST_F(LibYUVConvertTest, TestMJPGSize) {
+  int width = 0;
+  int height = 0;
+  int ret = MJPGSize(kTest2Jpg, kTest2JpgLen, &width, &height);
+  EXPECT_EQ(0, ret);
+
+  printf("test jpeg size %d x %d\n", width, height);
+}
 
-  // EOI, SOI to make MJPG appear valid.
-  memset(orig_pixels, 0, kSize);
-  orig_pixels[0] = 0xff;
-  orig_pixels[1] = 0xd8;  // SOI.
-  orig_pixels[kSize - kOff + 0] = 0xff;
-  orig_pixels[kSize - kOff + 1] = 0xd9;  // EOI.
+TEST_F(LibYUVConvertTest, TestMJPGToI420) {
+  int width = 0;
+  int height = 0;
+  int ret = MJPGSize(kTest2Jpg, kTest2JpgLen, &width, &height);
+  EXPECT_EQ(0, ret);
+
+  int half_width = (width + 1) / 2;
+  int half_height = (height + 1)/ 2;
+  int benchmark_iterations = benchmark_iterations_ * benchmark_width_ *
+                             benchmark_height_ / (width * height);
+
+  align_buffer_page_end(dst_y, width * height);
+  align_buffer_page_end(dst_u, half_width * half_height);
+  align_buffer_page_end(dst_v, half_width * half_height);
+  for (int times = 0; times < benchmark_iterations; ++times) {
+    ret = MJPGToI420(kTest2Jpg, kTest2JpgLen, dst_y, width, dst_u, half_width,
+                     dst_v, half_width, width, height, width, height);
+  }
+  // Expect sucesss
+  EXPECT_EQ(0, ret);
+
+  // Test result matches known hash value.
+  uint32_t dst_y_hash = HashDjb2(dst_y, width * height, 5381);
+  uint32_t dst_u_hash = HashDjb2(dst_u, half_width * half_height, 5381);
+  uint32_t dst_v_hash = HashDjb2(dst_v, half_width * half_height, 5381);
+  EXPECT_EQ(dst_y_hash, 2682851208u);
+  EXPECT_EQ(dst_u_hash, 2501859930u);
+  EXPECT_EQ(dst_v_hash, 2126459123u);
 
-  for (int times = 0; times < benchmark_iterations_; ++times) {
-    int ret =
-        MJPGToI420(orig_pixels, kSize, dst_y_opt, benchmark_width_, dst_u_opt,
-                   SUBSAMPLE(benchmark_width_, 2), dst_v_opt,
-                   SUBSAMPLE(benchmark_width_, 2), benchmark_width_,
-                   benchmark_height_, benchmark_width_, benchmark_height_);
-    // Expect failure because image is not really valid.
-    EXPECT_EQ(1, ret);
-  }
-
-  free_aligned_buffer_page_end(dst_y_opt);
-  free_aligned_buffer_page_end(dst_u_opt);
-  free_aligned_buffer_page_end(dst_v_opt);
-  free_aligned_buffer_page_end(orig_pixels);
+  free_aligned_buffer_page_end(dst_y);
+  free_aligned_buffer_page_end(dst_u);
+  free_aligned_buffer_page_end(dst_v);
 }
 
-TEST_F(LibYUVConvertTest, MJPGToARGB) {
-  const int kOff = 10;
-  const int kMinJpeg = 64;
-  const int kImageSize = benchmark_width_ * benchmark_height_ >= kMinJpeg
-                             ? benchmark_width_ * benchmark_height_
-                             : kMinJpeg;
-  const int kSize = kImageSize + kOff;
-  align_buffer_page_end(orig_pixels, kSize);
-  align_buffer_page_end(dst_argb_opt, benchmark_width_ * benchmark_height_ * 4);
+TEST_F(LibYUVConvertTest, TestMJPGToI420_NV21) {
+  int width = 0;
+  int height = 0;
+  int ret = MJPGSize(kTest2Jpg, kTest2JpgLen, &width, &height);
+  EXPECT_EQ(0, ret);
 
-  // EOI, SOI to make MJPG appear valid.
-  memset(orig_pixels, 0, kSize);
-  orig_pixels[0] = 0xff;
-  orig_pixels[1] = 0xd8;  // SOI.
-  orig_pixels[kSize - kOff + 0] = 0xff;
-  orig_pixels[kSize - kOff + 1] = 0xd9;  // EOI.
+  int half_width = (width + 1) / 2;
+  int half_height = (height + 1)/ 2;
+  int benchmark_iterations = benchmark_iterations_ * benchmark_width_ *
+                             benchmark_height_ / (width * height);
 
-  for (int times = 0; times < benchmark_iterations_; ++times) {
-    int ret = MJPGToARGB(orig_pixels, kSize, dst_argb_opt, benchmark_width_ * 4,
-                         benchmark_width_, benchmark_height_, benchmark_width_,
-                         benchmark_height_);
-    // Expect failure because image is not really valid.
-    EXPECT_EQ(1, ret);
+  // Convert to NV21
+  align_buffer_page_end(dst_y, width * height);
+  align_buffer_page_end(dst_vu, half_width * half_height * 2);
+
+  for (int times = 0; times < benchmark_iterations; ++times) {
+    ret = MJPGToNV21(kTest2Jpg, kTest2JpgLen, dst_y, width, dst_vu,
+                     half_width * 2, width, height, width, height);
   }
+  // Expect sucesss
+  EXPECT_EQ(0, ret);
 
-  free_aligned_buffer_page_end(dst_argb_opt);
-  free_aligned_buffer_page_end(orig_pixels);
+  // Convert to I420
+  align_buffer_page_end(dst2_y, width * height);
+  align_buffer_page_end(dst2_u, half_width * half_height);
+  align_buffer_page_end(dst2_v, half_width * half_height);
+  for (int times = 0; times < benchmark_iterations; ++times) {
+    ret = MJPGToI420(kTest2Jpg, kTest2JpgLen, dst2_y, width, dst2_u, half_width,
+                     dst2_v, half_width, width, height, width, height);
+  }
+  // Expect sucesss
+  EXPECT_EQ(0, ret);
+
+  // Convert I420 to NV21
+  align_buffer_page_end(dst3_y, width * height);
+  align_buffer_page_end(dst3_vu, half_width * half_height * 2);
+
+  I420ToNV21(dst2_y, width, dst2_u, half_width, dst2_v, half_width, dst3_y,
+             width, dst3_vu, half_width * 2, width, height);
+
+  for (int i = 0; i < width * height; ++i) {
+    EXPECT_EQ(dst_y[i], dst3_y[i]);
+  }
+  for (int i = 0; i < half_width * half_height * 2; ++i) {
+    EXPECT_EQ(dst_vu[i], dst3_vu[i]);
+    EXPECT_EQ(dst_vu[i], dst3_vu[i]);
+  }
+
+  free_aligned_buffer_page_end(dst3_y);
+  free_aligned_buffer_page_end(dst3_vu);
+
+  free_aligned_buffer_page_end(dst2_y);
+  free_aligned_buffer_page_end(dst2_u);
+  free_aligned_buffer_page_end(dst2_v);
+
+  free_aligned_buffer_page_end(dst_y);
+  free_aligned_buffer_page_end(dst_vu);
+}
+
+TEST_F(LibYUVConvertTest, TestMJPGToNV21_420) {
+  int width = 0;
+  int height = 0;
+  int ret = MJPGSize(kTest2Jpg, kTest2JpgLen, &width, &height);
+  EXPECT_EQ(0, ret);
+
+  int half_width = (width + 1) / 2;
+  int half_height = (height + 1)/ 2;
+  int benchmark_iterations = benchmark_iterations_ * benchmark_width_ *
+                             benchmark_height_ / (width * height);
+
+  align_buffer_page_end(dst_y, width * height);
+  align_buffer_page_end(dst_uv, half_width * half_height * 2);
+  for (int times = 0; times < benchmark_iterations; ++times) {
+    ret = MJPGToNV21(kTest2Jpg, kTest2JpgLen, dst_y, width, dst_uv,
+                     half_width * 2, width, height, width, height);
+  }
+  // Expect sucesss
+  EXPECT_EQ(0, ret);
+
+  // Test result matches known hash value.
+  uint32_t dst_y_hash = HashDjb2(dst_y, width * height, 5381);
+  uint32_t dst_uv_hash = HashDjb2(dst_uv, half_width * half_height * 2, 5381);
+  EXPECT_EQ(dst_y_hash, 2682851208u);
+  EXPECT_EQ(dst_uv_hash, 1069662856u);
+
+  free_aligned_buffer_page_end(dst_y);
+  free_aligned_buffer_page_end(dst_uv);
+}
+
+TEST_F(LibYUVConvertTest, TestMJPGToNV21_422) {
+  int width = 0;
+  int height = 0;
+  int ret = MJPGSize(kTest3Jpg, kTest3JpgLen, &width, &height);
+  EXPECT_EQ(0, ret);
+
+  int half_width = (width + 1) / 2;
+  int half_height = (height + 1)/ 2;
+  int benchmark_iterations = benchmark_iterations_ * benchmark_width_ *
+                             benchmark_height_ / (width * height);
+
+  align_buffer_page_end(dst_y, width * height);
+  align_buffer_page_end(dst_uv, half_width * half_height * 2);
+  for (int times = 0; times < benchmark_iterations; ++times) {
+    ret = MJPGToNV21(kTest3Jpg, kTest3JpgLen, dst_y, width, dst_uv,
+                     half_width * 2, width, height, width, height);
+  }
+  // Expect sucesss
+  EXPECT_EQ(0, ret);
+
+  // Test result matches known hash value.
+  uint32_t dst_y_hash = HashDjb2(dst_y, width * height, 5381);
+  uint32_t dst_uv_hash = HashDjb2(dst_uv, half_width * half_height * 2, 5381);
+  EXPECT_EQ(dst_y_hash, 2682851208u);
+  EXPECT_EQ(dst_uv_hash, 3543430771u);
+
+  free_aligned_buffer_page_end(dst_y);
+  free_aligned_buffer_page_end(dst_uv);
+}
+
+TEST_F(LibYUVConvertTest, TestMJPGToNV21_400) {
+  int width = 0;
+  int height = 0;
+  int ret = MJPGSize(kTest0Jpg, kTest0JpgLen, &width, &height);
+  EXPECT_EQ(0, ret);
+
+  int half_width = (width + 1) / 2;
+  int half_height = (height + 1)/ 2;
+  int benchmark_iterations = benchmark_iterations_ * benchmark_width_ *
+                             benchmark_height_ / (width * height);
+
+  align_buffer_page_end(dst_y, width * height);
+  align_buffer_page_end(dst_uv, half_width * half_height * 2);
+  for (int times = 0; times < benchmark_iterations; ++times) {
+    ret = MJPGToNV21(kTest0Jpg, kTest0JpgLen, dst_y, width, dst_uv,
+                     half_width * 2, width, height, width, height);
+  }
+  // Expect sucesss
+  EXPECT_EQ(0, ret);
+
+  // Test result matches known hash value.
+  uint32_t dst_y_hash = HashDjb2(dst_y, width * height, 5381);
+  uint32_t dst_uv_hash = HashDjb2(dst_uv, half_width * half_height * 2, 5381);
+  EXPECT_EQ(dst_y_hash, 330644005u);
+  EXPECT_EQ(dst_uv_hash, 135214341u);
+
+  free_aligned_buffer_page_end(dst_y);
+  free_aligned_buffer_page_end(dst_uv);
+}
+
+TEST_F(LibYUVConvertTest, TestMJPGToNV21_444) {
+  int width = 0;
+  int height = 0;
+  int ret = MJPGSize(kTest1Jpg, kTest1JpgLen, &width, &height);
+  EXPECT_EQ(0, ret);
+
+  int half_width = (width + 1) / 2;
+  int half_height = (height + 1)/ 2;
+  int benchmark_iterations = benchmark_iterations_ * benchmark_width_ *
+                             benchmark_height_ / (width * height);
+
+  align_buffer_page_end(dst_y, width * height);
+  align_buffer_page_end(dst_uv, half_width * half_height * 2);
+  for (int times = 0; times < benchmark_iterations; ++times) {
+    ret = MJPGToNV21(kTest1Jpg, kTest1JpgLen, dst_y, width, dst_uv,
+                     half_width * 2, width, height, width, height);
+  }
+  // Expect sucesss
+  EXPECT_EQ(0, ret);
+
+  // Test result matches known hash value.
+  uint32_t dst_y_hash = HashDjb2(dst_y, width * height, 5381);
+  uint32_t dst_uv_hash = HashDjb2(dst_uv, half_width * half_height * 2, 5381);
+  EXPECT_EQ(dst_y_hash, 2682851208u);
+  EXPECT_EQ(dst_uv_hash, 506143297u);
+
+  free_aligned_buffer_page_end(dst_y);
+  free_aligned_buffer_page_end(dst_uv);
 }
 
+TEST_F(LibYUVConvertTest, TestMJPGToARGB) {
+  int width = 0;
+  int height = 0;
+  int ret = MJPGSize(kTest3Jpg, kTest3JpgLen, &width, &height);
+  EXPECT_EQ(0, ret);
+
+  int benchmark_iterations = benchmark_iterations_ * benchmark_width_ *
+                             benchmark_height_ / (width * height);
+
+  align_buffer_page_end(dst_argb, width * height * 4);
+  for (int times = 0; times < benchmark_iterations; ++times) {
+    ret = MJPGToARGB(kTest3Jpg, kTest3JpgLen, dst_argb, width * 4, width,
+                     height, width, height);
+  }
+  // Expect sucesss
+  EXPECT_EQ(0, ret);
+
+  // Test result matches known hash value.
+  uint32_t dst_argb_hash = HashDjb2(dst_argb, width * height, 5381);
+  EXPECT_EQ(dst_argb_hash, 2355976473u);
+
+  free_aligned_buffer_page_end(dst_argb);
+}
+
+static int ShowJPegInfo(const uint8_t* sample, size_t sample_size) {
+  MJpegDecoder mjpeg_decoder;
+  LIBYUV_BOOL ret = mjpeg_decoder.LoadFrame(sample, sample_size);
+
+  int width = mjpeg_decoder.GetWidth();
+  int height = mjpeg_decoder.GetHeight();
+
+  // YUV420
+  if (mjpeg_decoder.GetColorSpace() == MJpegDecoder::kColorSpaceYCbCr &&
+      mjpeg_decoder.GetNumComponents() == 3 &&
+      mjpeg_decoder.GetVertSampFactor(0) == 2 &&
+      mjpeg_decoder.GetHorizSampFactor(0) == 2 &&
+      mjpeg_decoder.GetVertSampFactor(1) == 1 &&
+      mjpeg_decoder.GetHorizSampFactor(1) == 1 &&
+      mjpeg_decoder.GetVertSampFactor(2) == 1 &&
+      mjpeg_decoder.GetHorizSampFactor(2) == 1) {
+    printf("JPeg is J420, %dx%d %d bytes\n", width, height,
+           static_cast<int>(sample_size));
+    // YUV422
+  } else if (mjpeg_decoder.GetColorSpace() == MJpegDecoder::kColorSpaceYCbCr &&
+             mjpeg_decoder.GetNumComponents() == 3 &&
+             mjpeg_decoder.GetVertSampFactor(0) == 1 &&
+             mjpeg_decoder.GetHorizSampFactor(0) == 2 &&
+             mjpeg_decoder.GetVertSampFactor(1) == 1 &&
+             mjpeg_decoder.GetHorizSampFactor(1) == 1 &&
+             mjpeg_decoder.GetVertSampFactor(2) == 1 &&
+             mjpeg_decoder.GetHorizSampFactor(2) == 1) {
+    printf("JPeg is J422, %dx%d %d bytes\n", width, height,
+           static_cast<int>(sample_size));
+    // YUV444
+  } else if (mjpeg_decoder.GetColorSpace() == MJpegDecoder::kColorSpaceYCbCr &&
+             mjpeg_decoder.GetNumComponents() == 3 &&
+             mjpeg_decoder.GetVertSampFactor(0) == 1 &&
+             mjpeg_decoder.GetHorizSampFactor(0) == 1 &&
+             mjpeg_decoder.GetVertSampFactor(1) == 1 &&
+             mjpeg_decoder.GetHorizSampFactor(1) == 1 &&
+             mjpeg_decoder.GetVertSampFactor(2) == 1 &&
+             mjpeg_decoder.GetHorizSampFactor(2) == 1) {
+    printf("JPeg is J444, %dx%d %d bytes\n", width, height,
+           static_cast<int>(sample_size));
+    // YUV400
+  } else if (mjpeg_decoder.GetColorSpace() ==
+                 MJpegDecoder::kColorSpaceGrayscale &&
+             mjpeg_decoder.GetNumComponents() == 1 &&
+             mjpeg_decoder.GetVertSampFactor(0) == 1 &&
+             mjpeg_decoder.GetHorizSampFactor(0) == 1) {
+    printf("JPeg is J400, %dx%d %d bytes\n", width, height,
+           static_cast<int>(sample_size));
+  } else {
+    // Unknown colorspace.
+    printf("JPeg is Unknown colorspace.\n");
+  }
+  mjpeg_decoder.UnloadFrame();
+  return ret;
+}
+
+TEST_F(LibYUVConvertTest, TestMJPGInfo) {
+  EXPECT_EQ(1, ShowJPegInfo(kTest0Jpg, kTest0JpgLen));
+  EXPECT_EQ(1, ShowJPegInfo(kTest1Jpg, kTest1JpgLen));
+  EXPECT_EQ(1, ShowJPegInfo(kTest2Jpg, kTest2JpgLen));
+  EXPECT_EQ(1, ShowJPegInfo(kTest3Jpg, kTest3JpgLen));
+  EXPECT_EQ(1,
+            ShowJPegInfo(kTest4Jpg, kTest4JpgLen));  // Valid but unsupported.
+}
 #endif  // HAVE_JPEG
 
 TEST_F(LibYUVConvertTest, NV12Crop) {