256 строки
7.9 KiB
C++
256 строки
7.9 KiB
C++
/*
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* Copyright (c) 2012 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef TEST_ENCODE_TEST_DRIVER_H_
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#define TEST_ENCODE_TEST_DRIVER_H_
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#include <string>
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#include <vector>
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#include "third_party/googletest/src/include/gtest/gtest.h"
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#include "./vpx_config.h"
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#if CONFIG_VP10_ENCODER
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#include "vpx/vp8cx.h"
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#endif
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#include "vpx/vpx_encoder.h"
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namespace libvpx_test {
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class CodecFactory;
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class VideoSource;
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enum TestMode {
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kRealTime,
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kOnePassGood,
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kOnePassBest,
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kTwoPassGood,
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kTwoPassBest
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};
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#define ALL_TEST_MODES \
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::testing::Values(::libvpx_test::kRealTime, ::libvpx_test::kOnePassGood, \
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::libvpx_test::kOnePassBest, ::libvpx_test::kTwoPassGood, \
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::libvpx_test::kTwoPassBest)
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#define ONE_PASS_TEST_MODES \
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::testing::Values(::libvpx_test::kRealTime, ::libvpx_test::kOnePassGood, \
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::libvpx_test::kOnePassBest)
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#define TWO_PASS_TEST_MODES \
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::testing::Values(::libvpx_test::kTwoPassGood, ::libvpx_test::kTwoPassBest)
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// Provides an object to handle the libvpx get_cx_data() iteration pattern
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class CxDataIterator {
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public:
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explicit CxDataIterator(vpx_codec_ctx_t *encoder)
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: encoder_(encoder), iter_(NULL) {}
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const vpx_codec_cx_pkt_t *Next() {
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return vpx_codec_get_cx_data(encoder_, &iter_);
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}
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private:
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vpx_codec_ctx_t *encoder_;
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vpx_codec_iter_t iter_;
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};
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// Implements an in-memory store for libvpx twopass statistics
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class TwopassStatsStore {
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public:
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void Append(const vpx_codec_cx_pkt_t &pkt) {
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buffer_.append(reinterpret_cast<char *>(pkt.data.twopass_stats.buf),
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pkt.data.twopass_stats.sz);
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}
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vpx_fixed_buf_t buf() {
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const vpx_fixed_buf_t buf = { &buffer_[0], buffer_.size() };
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return buf;
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}
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void Reset() { buffer_.clear(); }
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protected:
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std::string buffer_;
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};
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// Provides a simplified interface to manage one video encoding pass, given
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// a configuration and video source.
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//
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// TODO(jkoleszar): The exact services it provides and the appropriate
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// level of abstraction will be fleshed out as more tests are written.
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class Encoder {
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public:
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Encoder(vpx_codec_enc_cfg_t cfg, unsigned long deadline,
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const unsigned long init_flags, TwopassStatsStore *stats)
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: cfg_(cfg), deadline_(deadline), init_flags_(init_flags), stats_(stats) {
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memset(&encoder_, 0, sizeof(encoder_));
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}
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virtual ~Encoder() { vpx_codec_destroy(&encoder_); }
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CxDataIterator GetCxData() { return CxDataIterator(&encoder_); }
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void InitEncoder(VideoSource *video);
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const vpx_image_t *GetPreviewFrame() {
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return vpx_codec_get_preview_frame(&encoder_);
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}
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// This is a thin wrapper around vpx_codec_encode(), so refer to
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// vpx_encoder.h for its semantics.
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void EncodeFrame(VideoSource *video, const unsigned long frame_flags);
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// Convenience wrapper for EncodeFrame()
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void EncodeFrame(VideoSource *video) { EncodeFrame(video, 0); }
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void Control(int ctrl_id, int arg) {
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const vpx_codec_err_t res = vpx_codec_control_(&encoder_, ctrl_id, arg);
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ASSERT_EQ(VPX_CODEC_OK, res) << EncoderError();
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}
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void Control(int ctrl_id, int *arg) {
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const vpx_codec_err_t res = vpx_codec_control_(&encoder_, ctrl_id, arg);
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ASSERT_EQ(VPX_CODEC_OK, res) << EncoderError();
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}
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void Control(int ctrl_id, struct vpx_scaling_mode *arg) {
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const vpx_codec_err_t res = vpx_codec_control_(&encoder_, ctrl_id, arg);
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ASSERT_EQ(VPX_CODEC_OK, res) << EncoderError();
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}
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#if CONFIG_VP10_ENCODER
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void Control(int ctrl_id, vpx_active_map_t *arg) {
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const vpx_codec_err_t res = vpx_codec_control_(&encoder_, ctrl_id, arg);
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ASSERT_EQ(VPX_CODEC_OK, res) << EncoderError();
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}
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#endif
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void Config(const vpx_codec_enc_cfg_t *cfg) {
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const vpx_codec_err_t res = vpx_codec_enc_config_set(&encoder_, cfg);
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ASSERT_EQ(VPX_CODEC_OK, res) << EncoderError();
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cfg_ = *cfg;
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}
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void set_deadline(unsigned long deadline) { deadline_ = deadline; }
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protected:
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virtual vpx_codec_iface_t *CodecInterface() const = 0;
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const char *EncoderError() {
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const char *detail = vpx_codec_error_detail(&encoder_);
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return detail ? detail : vpx_codec_error(&encoder_);
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}
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// Encode an image
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void EncodeFrameInternal(const VideoSource &video,
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const unsigned long frame_flags);
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// Flush the encoder on EOS
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void Flush();
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vpx_codec_ctx_t encoder_;
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vpx_codec_enc_cfg_t cfg_;
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unsigned long deadline_;
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unsigned long init_flags_;
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TwopassStatsStore *stats_;
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};
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// Common test functionality for all Encoder tests.
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//
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// This class is a mixin which provides the main loop common to all
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// encoder tests. It provides hooks which can be overridden by subclasses
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// to implement each test's specific behavior, while centralizing the bulk
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// of the boilerplate. Note that it doesn't inherit the gtest testing
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// classes directly, so that tests can be parameterized differently.
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class EncoderTest {
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protected:
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explicit EncoderTest(const CodecFactory *codec)
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: codec_(codec), abort_(false), init_flags_(0), frame_flags_(0),
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last_pts_(0) {
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// Default to 1 thread.
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cfg_.g_threads = 1;
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}
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virtual ~EncoderTest() {}
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// Initialize the cfg_ member with the default configuration.
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void InitializeConfig();
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// Map the TestMode enum to the deadline_ and passes_ variables.
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void SetMode(TestMode mode);
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// Set encoder flag.
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void set_init_flags(unsigned long flag) { // NOLINT(runtime/int)
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init_flags_ = flag;
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}
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// Main loop
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virtual void RunLoop(VideoSource *video);
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// Hook to be called at the beginning of a pass.
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virtual void BeginPassHook(unsigned int /*pass*/) {}
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// Hook to be called at the end of a pass.
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virtual void EndPassHook() {}
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// Hook to be called before encoding a frame.
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virtual void PreEncodeFrameHook(VideoSource * /*video*/) {}
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virtual void PreEncodeFrameHook(VideoSource * /*video*/,
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Encoder * /*encoder*/) {}
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// Hook to be called on every compressed data packet.
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virtual void FramePktHook(const vpx_codec_cx_pkt_t * /*pkt*/) {}
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// Hook to be called on every PSNR packet.
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virtual void PSNRPktHook(const vpx_codec_cx_pkt_t * /*pkt*/) {}
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// Hook to determine whether the encode loop should continue.
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virtual bool Continue() const {
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return !(::testing::Test::HasFatalFailure() || abort_);
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}
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const CodecFactory *codec_;
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// Hook to determine whether to decode frame after encoding
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virtual bool DoDecode() const { return 1; }
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// Hook to handle encode/decode mismatch
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virtual void MismatchHook(const vpx_image_t *img1, const vpx_image_t *img2);
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// Hook to be called on every decompressed frame.
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virtual void DecompressedFrameHook(const vpx_image_t & /*img*/,
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vpx_codec_pts_t /*pts*/) {}
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// Hook to be called to handle decode result. Return true to continue.
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virtual bool HandleDecodeResult(const vpx_codec_err_t res_dec,
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const VideoSource & /*video*/,
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Decoder *decoder) {
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EXPECT_EQ(VPX_CODEC_OK, res_dec) << decoder->DecodeError();
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return VPX_CODEC_OK == res_dec;
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}
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// Hook that can modify the encoder's output data
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virtual const vpx_codec_cx_pkt_t *MutateEncoderOutputHook(
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const vpx_codec_cx_pkt_t *pkt) {
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return pkt;
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}
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bool abort_;
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vpx_codec_enc_cfg_t cfg_;
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vpx_codec_dec_cfg_t dec_cfg_;
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unsigned int passes_;
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unsigned long deadline_;
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TwopassStatsStore stats_;
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unsigned long init_flags_;
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unsigned long frame_flags_;
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vpx_codec_pts_t last_pts_;
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};
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} // namespace libvpx_test
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#endif // TEST_ENCODE_TEST_DRIVER_H_
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