Import aom library

This is the reference implementation for the Alliance for Open Media's av1 video code.

The commit used was 4d668d7feb1f8abd809d1bca0418570a7f142a36.

1 files changed, 164 insertions, 0 deletions

diff --git a/third_party/aom/test/decode_test_driver.h b/third_party/aom/test/decode_test_driver.h
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index 000000000..e7deb389c
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+++ b/third_party/aom/test/decode_test_driver.h
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+/*
+ * Copyright (c) 2016, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+#ifndef TEST_DECODE_TEST_DRIVER_H_
+#define TEST_DECODE_TEST_DRIVER_H_
+#include <cstring>
+#include "third_party/googletest/src/googletest/include/gtest/gtest.h"
+#include "./aom_config.h"
+#include "aom/aom_decoder.h"
+
+namespace libaom_test {
+
+class CodecFactory;
+class CompressedVideoSource;
+
+// Provides an object to handle decoding output
+class DxDataIterator {
+ public:
+  explicit DxDataIterator(aom_codec_ctx_t *decoder)
+      : decoder_(decoder), iter_(NULL) {}
+
+  const aom_image_t *Next() { return aom_codec_get_frame(decoder_, &iter_); }
+
+ private:
+  aom_codec_ctx_t *decoder_;
+  aom_codec_iter_t iter_;
+};
+
+// Provides a simplified interface to manage one video decoding.
+// Similar to Encoder class, the exact services should be added
+// as more tests are added.
+class Decoder {
+ public:
+  explicit Decoder(aom_codec_dec_cfg_t cfg)
+      : cfg_(cfg), flags_(0), init_done_(false) {
+    memset(&decoder_, 0, sizeof(decoder_));
+  }
+
+  Decoder(aom_codec_dec_cfg_t cfg, const aom_codec_flags_t flag)
+      : cfg_(cfg), flags_(flag), init_done_(false) {
+    memset(&decoder_, 0, sizeof(decoder_));
+  }
+
+  virtual ~Decoder() { aom_codec_destroy(&decoder_); }
+
+  aom_codec_err_t PeekStream(const uint8_t *cxdata, size_t size,
+                             aom_codec_stream_info_t *stream_info);
+
+  aom_codec_err_t DecodeFrame(const uint8_t *cxdata, size_t size);
+
+  aom_codec_err_t DecodeFrame(const uint8_t *cxdata, size_t size,
+                              void *user_priv);
+
+  DxDataIterator GetDxData() { return DxDataIterator(&decoder_); }
+
+  void Control(int ctrl_id, int arg) { Control(ctrl_id, arg, AOM_CODEC_OK); }
+
+  void Control(int ctrl_id, const void *arg) {
+    InitOnce();
+    const aom_codec_err_t res = aom_codec_control_(&decoder_, ctrl_id, arg);
+    ASSERT_EQ(AOM_CODEC_OK, res) << DecodeError();
+  }
+
+  void Control(int ctrl_id, int arg, aom_codec_err_t expected_value) {
+    InitOnce();
+    const aom_codec_err_t res = aom_codec_control_(&decoder_, ctrl_id, arg);
+    ASSERT_EQ(expected_value, res) << DecodeError();
+  }
+
+  const char *DecodeError() {
+    const char *detail = aom_codec_error_detail(&decoder_);
+    return detail ? detail : aom_codec_error(&decoder_);
+  }
+
+  // Passes the external frame buffer information to libaom.
+  aom_codec_err_t SetFrameBufferFunctions(
+      aom_get_frame_buffer_cb_fn_t cb_get,
+      aom_release_frame_buffer_cb_fn_t cb_release, void *user_priv) {
+    InitOnce();
+    return aom_codec_set_frame_buffer_functions(&decoder_, cb_get, cb_release,
+                                                user_priv);
+  }
+
+  const char *GetDecoderName() const {
+    return aom_codec_iface_name(CodecInterface());
+  }
+
+  bool IsVP8() const;
+
+  bool IsAV1() const;
+
+  aom_codec_ctx_t *GetDecoder() { return &decoder_; }
+
+ protected:
+  virtual aom_codec_iface_t *CodecInterface() const = 0;
+
+  void InitOnce() {
+    if (!init_done_) {
+      const aom_codec_err_t res =
+          aom_codec_dec_init(&decoder_, CodecInterface(), &cfg_, flags_);
+      ASSERT_EQ(AOM_CODEC_OK, res) << DecodeError();
+      init_done_ = true;
+    }
+  }
+
+  aom_codec_ctx_t decoder_;
+  aom_codec_dec_cfg_t cfg_;
+  aom_codec_flags_t flags_;
+  bool init_done_;
+};
+
+// Common test functionality for all Decoder tests.
+class DecoderTest {
+ public:
+  // Main decoding loop
+  virtual void RunLoop(CompressedVideoSource *video);
+  virtual void RunLoop(CompressedVideoSource *video,
+                       const aom_codec_dec_cfg_t &dec_cfg);
+
+  virtual void set_cfg(const aom_codec_dec_cfg_t &dec_cfg);
+  virtual void set_flags(const aom_codec_flags_t flags);
+
+  // Hook to be called before decompressing every frame.
+  virtual void PreDecodeFrameHook(const CompressedVideoSource & /*video*/,
+                                  Decoder * /*decoder*/) {}
+
+  // Hook to be called to handle decode result. Return true to continue.
+  virtual bool HandleDecodeResult(const aom_codec_err_t res_dec,
+                                  Decoder *decoder) {
+    EXPECT_EQ(AOM_CODEC_OK, res_dec) << decoder->DecodeError();
+    return AOM_CODEC_OK == res_dec;
+  }
+
+  // Hook to be called on every decompressed frame.
+  virtual void DecompressedFrameHook(const aom_image_t & /*img*/,
+                                     const unsigned int /*frame_number*/) {}
+
+  // Hook to be called on peek result
+  virtual void HandlePeekResult(Decoder *const decoder,
+                                CompressedVideoSource *video,
+                                const aom_codec_err_t res_peek);
+
+ protected:
+  explicit DecoderTest(const CodecFactory *codec)
+      : codec_(codec), cfg_(), flags_(0) {}
+
+  virtual ~DecoderTest() {}
+
+  const CodecFactory *codec_;
+  aom_codec_dec_cfg_t cfg_;
+  aom_codec_flags_t flags_;
+};
+
+}  // namespace libaom_test
+
+#endif  // TEST_DECODE_TEST_DRIVER_H_