add libvpx 89cc6825 (matching current chrome canary) from repo https://chromium.googlesource.com/webm/libvpx

libs/libvpx/test/decode_test_driver.h

@@ -0,0 +1,181 @@
+/*
+ *  Copyright (c) 2012 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.
+ */
+
+#ifndef TEST_DECODE_TEST_DRIVER_H_
+#define TEST_DECODE_TEST_DRIVER_H_
+#include <cstring>
+#include "third_party/googletest/src/include/gtest/gtest.h"
+#include "./vpx_config.h"
+#include "vpx/vpx_decoder.h"
+
+namespace libvpx_test {
+
+class CodecFactory;
+class CompressedVideoSource;
+
+// Provides an object to handle decoding output
+class DxDataIterator {
+ public:
+  explicit DxDataIterator(vpx_codec_ctx_t *decoder)
+      : decoder_(decoder), iter_(NULL) {}
+
+  const vpx_image_t *Next() {
+    return vpx_codec_get_frame(decoder_, &iter_);
+  }
+
+ private:
+  vpx_codec_ctx_t  *decoder_;
+  vpx_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:
+  Decoder(vpx_codec_dec_cfg_t cfg, unsigned long deadline)
+      : cfg_(cfg), flags_(0), deadline_(deadline), init_done_(false) {
+    memset(&decoder_, 0, sizeof(decoder_));
+  }
+
+  Decoder(vpx_codec_dec_cfg_t cfg, const vpx_codec_flags_t flag,
+          unsigned long deadline)  // NOLINT
+      : cfg_(cfg), flags_(flag), deadline_(deadline), init_done_(false) {
+    memset(&decoder_, 0, sizeof(decoder_));
+  }
+
+  virtual ~Decoder() {
+    vpx_codec_destroy(&decoder_);
+  }
+
+  vpx_codec_err_t PeekStream(const uint8_t *cxdata, size_t size,
+                             vpx_codec_stream_info_t *stream_info);
+
+  vpx_codec_err_t DecodeFrame(const uint8_t *cxdata, size_t size);
+
+  vpx_codec_err_t DecodeFrame(const uint8_t *cxdata, size_t size,
+                              void *user_priv);
+
+  DxDataIterator GetDxData() {
+    return DxDataIterator(&decoder_);
+  }
+
+  void set_deadline(unsigned long deadline) {
+    deadline_ = deadline;
+  }
+
+  void Control(int ctrl_id, int arg) {
+    Control(ctrl_id, arg, VPX_CODEC_OK);
+  }
+
+  void Control(int ctrl_id, const void *arg) {
+    InitOnce();
+    const vpx_codec_err_t res = vpx_codec_control_(&decoder_, ctrl_id, arg);
+    ASSERT_EQ(VPX_CODEC_OK, res) << DecodeError();
+  }
+
+  void Control(int ctrl_id, int arg, vpx_codec_err_t expected_value) {
+    InitOnce();
+    const vpx_codec_err_t res = vpx_codec_control_(&decoder_, ctrl_id, arg);
+    ASSERT_EQ(expected_value, res) << DecodeError();
+  }
+
+  const char* DecodeError() {
+    const char *detail = vpx_codec_error_detail(&decoder_);
+    return detail ? detail : vpx_codec_error(&decoder_);
+  }
+
+  // Passes the external frame buffer information to libvpx.
+  vpx_codec_err_t SetFrameBufferFunctions(
+      vpx_get_frame_buffer_cb_fn_t cb_get,
+      vpx_release_frame_buffer_cb_fn_t cb_release, void *user_priv) {
+    InitOnce();
+    return vpx_codec_set_frame_buffer_functions(
+        &decoder_, cb_get, cb_release, user_priv);
+  }
+
+  const char* GetDecoderName() const {
+    return vpx_codec_iface_name(CodecInterface());
+  }
+
+  bool IsVP8() const;
+
+  vpx_codec_ctx_t * GetDecoder() {
+    return &decoder_;
+  }
+
+ protected:
+  virtual vpx_codec_iface_t* CodecInterface() const = 0;
+
+  void InitOnce() {
+    if (!init_done_) {
+      const vpx_codec_err_t res = vpx_codec_dec_init(&decoder_,
+                                                     CodecInterface(),
+                                                     &cfg_, flags_);
+      ASSERT_EQ(VPX_CODEC_OK, res) << DecodeError();
+      init_done_ = true;
+    }
+  }
+
+  vpx_codec_ctx_t     decoder_;
+  vpx_codec_dec_cfg_t cfg_;
+  vpx_codec_flags_t   flags_;
+  unsigned int        deadline_;
+  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 vpx_codec_dec_cfg_t &dec_cfg);
+
+  virtual void set_cfg(const vpx_codec_dec_cfg_t &dec_cfg);
+  virtual void set_flags(const vpx_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 vpx_codec_err_t res_dec,
+                                  const CompressedVideoSource& /*video*/,
+                                  Decoder *decoder) {
+    EXPECT_EQ(VPX_CODEC_OK, res_dec) << decoder->DecodeError();
+    return VPX_CODEC_OK == res_dec;
+  }
+
+  // Hook to be called on every decompressed frame.
+  virtual void DecompressedFrameHook(const vpx_image_t& /*img*/,
+                                     const unsigned int /*frame_number*/) {}
+
+  // Hook to be called on peek result
+  virtual void HandlePeekResult(Decoder* const decoder,
+                                CompressedVideoSource *video,
+                                const vpx_codec_err_t res_peek);
+
+ protected:
+  explicit DecoderTest(const CodecFactory *codec)
+      : codec_(codec),
+        cfg_(),
+        flags_(0) {}
+
+  virtual ~DecoderTest() {}
+
+  const CodecFactory *codec_;
+  vpx_codec_dec_cfg_t cfg_;
+  vpx_codec_flags_t   flags_;
+};
+
+}  // namespace libvpx_test
+
+#endif  // TEST_DECODE_TEST_DRIVER_H_