external/libyuv: Move files/fuzz to top level directory

fuzz subdirectory is not part of upstream libyuv and is specific to
android's copy of libyuv. So by moving it to the top level
external/libyuv directory, we can make sure that "files" subdirectory
contains a pristine copy of upstream libyuv.

It also makes updating libyuv from upstream easier.

Bug: 241008246
Test: libyuv_mjpeg_dec_fuzz target builds successfully

Merged-In: Iab37b2c9365725362443408f5fc493730fafcd86
Change-Id: I8684819a8069c5cd0f2b8a36824ee424cf086130

3 files changed, 0 insertions, 165 deletions

diff --git a/files/fuzz/Android.bp b/files/fuzz/Android.bp
deleted file mode 100644
index 0e495899..00000000
--- a/files/fuzz/Android.bp
+++ /dev/null
@@ -1,24 +0,0 @@
-
-package {
-    // See: http://go/android-license-faq
-    // A large-scale-change added 'default_applicable_licenses' to import
-    // all of the 'license_kinds' from "external_libyuv_files_license"
-    // to get the below license kinds:
-    //   SPDX-license-identifier-BSD
-    default_applicable_licenses: ["external_libyuv_files_license"],
-}
-
-cc_fuzz {
-    name: "libyuv_mjpeg_dec_fuzz",
-    host_supported: false,
-    srcs: [
-        "mjpeg_dec_fuzz.cc",
-    ],
-    static_libs: [
-        "libyuv",
-    ],
-
-    shared_libs: [
-        "libjpeg",
-    ],
-}
diff --git a/files/fuzz/OWNERS b/files/fuzz/OWNERS
deleted file mode 100644
index 37481f5d..00000000
--- a/files/fuzz/OWNERS
+++ /dev/null
@@ -1,2 +0,0 @@
-ispo@google.com
-fbarchard@google.com
diff --git a/files/fuzz/mjpeg_dec_fuzz.cc b/files/fuzz/mjpeg_dec_fuzz.cc
deleted file mode 100644
index 3be8410a..00000000
--- a/files/fuzz/mjpeg_dec_fuzz.cc
+++ /dev/null
@@ -1,139 +0,0 @@
-// -----------------------------------------------------------------------------
-// Fuzz Target for libyuv's mjpeg decoder.
-//
-// This fuzz target focuses on the decoding from JPEG to YUV format.
-// -----------------------------------------------------------------------------
-#include "libyuv/basic_types.h"
-#include "libyuv/mjpeg_decoder.h"
-
-#include <stdint.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <malloc.h>
-
-
-// -----------------------------------------------------------------------------
-// Checks whether 3 values are equal.
-//
-inline bool IsEqual(int a, int b, int  c) {
-  return (a == b && a == c);
-}
-
-// -----------------------------------------------------------------------------
-// libFuzzer's callback that is invoked upon startup.
-//
-extern "C" int LLVMFuzzerInitialize(int *unused_argc, char ***unused_argv) {
-  (void) unused_argc;  // Avoid "-Wunused-parameter" warnings.
-  (void) unused_argv;
-  // Printing this message is benefial as we can infer which fuzzer runs
-  // just by looking at the logs which are stored in the cloud.
-  printf("[*] Fuzz Target for libyuv mjpeg decoder started.\n");
-
-  return 0;
-}
-
-// -----------------------------------------------------------------------------
-// Decodes a JPEG image into a YUV format.
-//
-extern "C" bool Decode(libyuv::MJpegDecoder &decoder) {
-  // YUV colors are represented with one "luminance" component called Y
-  // and two "chrominance" components, called U and V.
-  // Planar formats use separate matrices for each of the 3 color components.
-  //
-  // If we don't have 3 components abort.
-  //
-  // NOTE: It may be possible to have 4 planes for CMYK and alpha, but it's
-  // very rare and not supported.
-  int num_planes = decoder.GetNumComponents();
-
-  if (num_planes != 3) {
-    return false;
-  }
-
-  /* NOTE: Without a jpeg corpus, we can't reach this point */
-
-  int width = decoder.GetWidth();
-  int height = decoder.GetHeight();
-  int y_width = decoder.GetComponentWidth(0);
-  int y_height = decoder.GetComponentHeight(0);
-  int u_width = decoder.GetComponentWidth(1);
-  int u_height = decoder.GetComponentHeight(1);
-  int v_width = decoder.GetComponentWidth(2);
-  int v_height = decoder.GetComponentHeight(2);
-  uint8_t *y;
-  uint8_t *u;
-  uint8_t *v;
-
-  // Make sure that width and heigh stay at decent levels (< 16K * 16K).
-  // (Y is the largest buffer).
-  if (width > (1 << 14) || height > (1 << 14)) {
-    // Ok, if this happens it's a DoS, but let's ignore it for now.
-    return false;
-  }
-
-  // Allocate stides according to the sampling type.
-  if (IsEqual(y_width, u_width, v_width) &&
-      IsEqual(y_height, u_height, v_height)) {
-    // Sampling type: YUV444.
-    y = new uint8_t[width * height];
-    u = new uint8_t[width * height];
-    v = new uint8_t[width * height];
-
-  } else if (IsEqual((y_width + 1) / 2, u_width, v_width) &&
-      IsEqual(y_height, u_height, v_height)) {
-    // Sampling type: YUV422.
-    y = new uint8_t[width * height];
-    u = new uint8_t[((width + 1) / 2) * height];
-    v = new uint8_t[((width + 1) / 2) * height];
-
-  } else if (IsEqual((y_width + 1) / 2, u_width, v_width) &&
-      IsEqual((y_height + 1) / 2, u_height, v_height)) {
-    // Sampling type: YUV420.
-    y = new uint8_t[width * height];
-    u = new uint8_t[((width + 1) / 2) * ((height + 1) / 2)];
-    v = new uint8_t[((width + 1) / 2) * ((height + 1) / 2)];
-
-  } else {
-    // Invalid sampling type.
-    return false;
-  }
-
-  uint8_t* planes[] = {y, u, v};
-
-  // Do the actual decoding. (Ignore return values).
-  decoder.DecodeToBuffers(planes, width, height);
-
-  delete[] y;
-  delete[] u;
-  delete[] v;
-
-  return true;  // Success!
-}
-
-// -----------------------------------------------------------------------------
-// libFuzzer's callback that performs the actual fuzzing.
-//
-extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
-  // Make sure that we have a minimum length (32 or something small).
-  if (size < 32) {
-      return 0;
-  }
-
-  // Create the decoder object.
-  libyuv::MJpegDecoder decoder;
-
-  // Load frame, read its headers and determine uncompress image format.
-  if (decoder.LoadFrame(data, size) == LIBYUV_FALSE) {
-    // Header parsing error. Discrad frame.
-    return 0;
-  }
-
-  // Do the actual decoding.
-  Decode(decoder);
-
-  // Unload the frame.
-  decoder.UnloadFrame();
-
-  return 0;
-}