Port folder renaming changes from AOM

Manually cherry-picked commits:
ceef0583 libvpx->libaom part2
3d26d916 libvpx -> libaom
cfea7dd7 vp10/ -> av1/
3a8eff73 Fix a build issue for a test
bf4202ed Rename vpx to aom

Change-Id: I1b0eb5a40796e3aaf41c58984b4229a439a597dc

.gitignore

@@ -45,8 +45,8 @@
 /ivfdec.dox
 /ivfenc
 /ivfenc.dox
-/libvpx.so*
-/libvpx.ver
+/libaom.so*
+/libaom.ver
 /samples.dox
 /test_intra_pred_speed
 /test_libvpx

README

@@ -33,13 +33,13 @@ COMPILING THE APPLICATIONS/LIBRARIES:
 
     $ mkdir build
     $ cd build
-    $ ../libvpx/configure <options>
+    $ ../libaom/configure <options>
     $ make
 
   3. Configuration options
   The 'configure' script supports a number of options. The --help option can be
   used to get a list of supported options:
-    $ ../libvpx/configure --help
+    $ ../libaom/configure --help
 
   4. Cross development
   For cross development, the most notable option is the --target option. The
@@ -108,7 +108,7 @@ COMPILING THE APPLICATIONS/LIBRARIES:
   toolchain, the following command could be used (note, POSIX SH syntax, adapt
   to your shell as necessary):
 
-    $ CROSS=mipsel-linux-uclibc- ../libvpx/configure
+    $ CROSS=mipsel-linux-uclibc- ../libaom/configure
 
   In addition, the executables to be invoked can be overridden by specifying the
   environment variables: CC, AR, LD, AS, STRIP, NM. Additional flags can be
@@ -125,7 +125,7 @@ VP8/VP9 TEST VECTORS:
   LIBVPX_TEST_DATA_PATH environment variable can be used.
 
   $ ./configure --enable-unit-tests
-  $ LIBVPX_TEST_DATA_PATH=../libvpx-test-data make testdata
+  $ LIBVPX_TEST_DATA_PATH=../-test-data make testdata
 
 CODE STYLE:
   The coding style used by this project is enforced with clang-format using the

aom/src/vpx_codec.c

+/*
+ *  Copyright (c) 2010 The WebM 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.
+ */
+
+/*!\file
+ * \brief Provides the high level interface to wrap decoder algorithms.
+ *
+ */
+#include <stdarg.h>
+#include <stdlib.h>
+#include "aom/vpx_integer.h"
+#include "aom/internal/vpx_codec_internal.h"
+#include "vpx_version.h"
+
+#define SAVE_STATUS(ctx, var) (ctx ? (ctx->err = var) : var)
+
+int vpx_codec_version(void) { return VERSION_PACKED; }
+
+const char *vpx_codec_version_str(void) { return VERSION_STRING_NOSP; }
+
+const char *vpx_codec_version_extra_str(void) { return VERSION_EXTRA; }
+
+const char *vpx_codec_iface_name(vpx_codec_iface_t *iface) {
+  return iface ? iface->name : "<invalid interface>";
+}
+
+const char *vpx_codec_err_to_string(vpx_codec_err_t err) {
+  switch (err) {
+    case VPX_CODEC_OK: return "Success";
+    case VPX_CODEC_ERROR: return "Unspecified internal error";
+    case VPX_CODEC_MEM_ERROR: return "Memory allocation error";
+    case VPX_CODEC_ABI_MISMATCH: return "ABI version mismatch";
+    case VPX_CODEC_INCAPABLE:
+      return "Codec does not implement requested capability";
+    case VPX_CODEC_UNSUP_BITSTREAM:
+      return "Bitstream not supported by this decoder";
+    case VPX_CODEC_UNSUP_FEATURE:
+      return "Bitstream required feature not supported by this decoder";
+    case VPX_CODEC_CORRUPT_FRAME: return "Corrupt frame detected";
+    case VPX_CODEC_INVALID_PARAM: return "Invalid parameter";
+    case VPX_CODEC_LIST_END: return "End of iterated list";
+  }
+
+  return "Unrecognized error code";
+}
+
+const char *vpx_codec_error(vpx_codec_ctx_t *ctx) {
+  return (ctx) ? vpx_codec_err_to_string(ctx->err)
+               : vpx_codec_err_to_string(VPX_CODEC_INVALID_PARAM);
+}
+
+const char *vpx_codec_error_detail(vpx_codec_ctx_t *ctx) {
+  if (ctx && ctx->err)
+    return ctx->priv ? ctx->priv->err_detail : ctx->err_detail;
+
+  return NULL;
+}
+
+vpx_codec_err_t vpx_codec_destroy(vpx_codec_ctx_t *ctx) {
+  vpx_codec_err_t res;
+
+  if (!ctx)
+    res = VPX_CODEC_INVALID_PARAM;
+  else if (!ctx->iface || !ctx->priv)
+    res = VPX_CODEC_ERROR;
+  else {
+    ctx->iface->destroy((vpx_codec_alg_priv_t *)ctx->priv);
+
+    ctx->iface = NULL;
+    ctx->name = NULL;
+    ctx->priv = NULL;
+    res = VPX_CODEC_OK;
+  }
+
+  return SAVE_STATUS(ctx, res);
+}
+
+vpx_codec_caps_t vpx_codec_get_caps(vpx_codec_iface_t *iface) {
+  return (iface) ? iface->caps : 0;
+}
+
+vpx_codec_err_t vpx_codec_control_(vpx_codec_ctx_t *ctx, int ctrl_id, ...) {
+  vpx_codec_err_t res;
+
+  if (!ctx || !ctrl_id)
+    res = VPX_CODEC_INVALID_PARAM;
+  else if (!ctx->iface || !ctx->priv || !ctx->iface->ctrl_maps)
+    res = VPX_CODEC_ERROR;
+  else {
+    vpx_codec_ctrl_fn_map_t *entry;
+
+    res = VPX_CODEC_ERROR;
+
+    for (entry = ctx->iface->ctrl_maps; entry && entry->fn; entry++) {
+      if (!entry->ctrl_id || entry->ctrl_id == ctrl_id) {
+        va_list ap;
+
+        va_start(ap, ctrl_id);
+        res = entry->fn((vpx_codec_alg_priv_t *)ctx->priv, ap);
+        va_end(ap);
+        break;
+      }
+    }
+  }
+
+  return SAVE_STATUS(ctx, res);
+}
+
+void vpx_internal_error(struct vpx_internal_error_info *info,
+                        vpx_codec_err_t error, const char *fmt, ...) {
+  va_list ap;
+
+  info->error_code = error;
+  info->has_detail = 0;
+
+  if (fmt) {
+    size_t sz = sizeof(info->detail);
+
+    info->has_detail = 1;
+    va_start(ap, fmt);
+    vsnprintf(info->detail, sz - 1, fmt, ap);
+    va_end(ap);
+    info->detail[sz - 1] = '\0';
+  }
+
+  if (info->setjmp) longjmp(info->jmp, info->error_code);
+}

aom/src/vpx_decoder.c

+/*
+ *  Copyright (c) 2010 The WebM 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.
+ */
+
+/*!\file
+ * \brief Provides the high level interface to wrap decoder algorithms.
+ *
+ */
+#include <string.h>
+#include "aom/internal/vpx_codec_internal.h"
+
+#define SAVE_STATUS(ctx, var) (ctx ? (ctx->err = var) : var)
+
+static vpx_codec_alg_priv_t *get_alg_priv(vpx_codec_ctx_t *ctx) {
+  return (vpx_codec_alg_priv_t *)ctx->priv;
+}
+
+vpx_codec_err_t vpx_codec_dec_init_ver(vpx_codec_ctx_t *ctx,
+                                       vpx_codec_iface_t *iface,
+                                       const vpx_codec_dec_cfg_t *cfg,
+                                       vpx_codec_flags_t flags, int ver) {
+  vpx_codec_err_t res;
+
+  if (ver != VPX_DECODER_ABI_VERSION)
+    res = VPX_CODEC_ABI_MISMATCH;
+  else if (!ctx || !iface)
+    res = VPX_CODEC_INVALID_PARAM;
+  else if (iface->abi_version != VPX_CODEC_INTERNAL_ABI_VERSION)
+    res = VPX_CODEC_ABI_MISMATCH;
+  else if ((flags & VPX_CODEC_USE_POSTPROC) &&
+           !(iface->caps & VPX_CODEC_CAP_POSTPROC))
+    res = VPX_CODEC_INCAPABLE;
+  else if ((flags & VPX_CODEC_USE_ERROR_CONCEALMENT) &&
+           !(iface->caps & VPX_CODEC_CAP_ERROR_CONCEALMENT))
+    res = VPX_CODEC_INCAPABLE;
+  else if ((