ref: 296f2e6b93638aa57092acc5d1b273f8201d4a6c
dir: /test/encode_test_driver.h/
/*
* 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_ENCODE_TEST_DRIVER_H_
#define TEST_ENCODE_TEST_DRIVER_H_
#include <string>
#include <vector>
#include "./vpx_config.h"
#include "third_party/googletest/src/include/gtest/gtest.h"
#include "vpx/vpx_encoder.h"
#if CONFIG_VP8_ENCODER || CONFIG_VP9_ENCODER
#include "vpx/vp8cx.h"
#endif
namespace libvpx_test {
class CodecFactory;
class VideoSource;
enum TestMode {
kRealTime,
kOnePassGood,
kOnePassBest,
kTwoPassGood,
kTwoPassBest
};
#define ALL_TEST_MODES ::testing::Values(::libvpx_test::kRealTime, \
::libvpx_test::kOnePassGood, \
::libvpx_test::kOnePassBest, \
::libvpx_test::kTwoPassGood, \
::libvpx_test::kTwoPassBest)
#define ONE_PASS_TEST_MODES ::testing::Values(::libvpx_test::kRealTime, \
::libvpx_test::kOnePassGood, \
::libvpx_test::kOnePassBest)
#define TWO_PASS_TEST_MODES ::testing::Values(::libvpx_test::kTwoPassGood, \
::libvpx_test::kTwoPassBest)
// Provides an object to handle the libvpx get_cx_data() iteration pattern
class CxDataIterator {
public:
explicit CxDataIterator(vpx_codec_ctx_t *encoder)
: encoder_(encoder), iter_(NULL) {}
const vpx_codec_cx_pkt_t *Next() {
return vpx_codec_get_cx_data(encoder_, &iter_);
}
private:
vpx_codec_ctx_t *encoder_;
vpx_codec_iter_t iter_;
};
// Implements an in-memory store for libvpx twopass statistics
class TwopassStatsStore {
public:
void Append(const vpx_codec_cx_pkt_t &pkt) {
buffer_.append(reinterpret_cast<char *>(pkt.data.twopass_stats.buf),
pkt.data.twopass_stats.sz);
}
vpx_fixed_buf_t buf() {
const vpx_fixed_buf_t buf = { &buffer_[0], buffer_.size() };
return buf;
}
void Reset() {
buffer_.clear();
}
protected:
std::string buffer_;
};
// Provides a simplified interface to manage one video encoding pass, given
// a configuration and video source.
//
// TODO(jkoleszar): The exact services it provides and the appropriate
// level of abstraction will be fleshed out as more tests are written.
class Encoder {
public:
Encoder(vpx_codec_enc_cfg_t cfg, unsigned long deadline,
const unsigned long init_flags, TwopassStatsStore *stats)
: cfg_(cfg), deadline_(deadline), init_flags_(init_flags), stats_(stats) {
memset(&encoder_, 0, sizeof(encoder_));
}
virtual ~Encoder() {
vpx_codec_destroy(&encoder_);
}
CxDataIterator GetCxData() {
return CxDataIterator(&encoder_);
}
const vpx_image_t *GetPreviewFrame() {
return vpx_codec_get_preview_frame(&encoder_);
}
// This is a thin wrapper around vpx_codec_encode(), so refer to
// vpx_encoder.h for its semantics.
void EncodeFrame(VideoSource *video, const unsigned long frame_flags);
// Convenience wrapper for EncodeFrame()
void EncodeFrame(VideoSource *video) {
EncodeFrame(video, 0);
}
void Control(int ctrl_id, int arg) {
const vpx_codec_err_t res = vpx_codec_control_(&encoder_, ctrl_id, arg);
ASSERT_EQ(VPX_CODEC_OK, res) << EncoderError();
}
void Control(int ctrl_id, struct vpx_scaling_mode *arg) {
const vpx_codec_err_t res = vpx_codec_control_(&encoder_, ctrl_id, arg);
ASSERT_EQ(VPX_CODEC_OK, res) << EncoderError();
}
void Control(int ctrl_id, struct vpx_svc_layer_id *arg) {
const vpx_codec_err_t res = vpx_codec_control_(&encoder_, ctrl_id, arg);
ASSERT_EQ(VPX_CODEC_OK, res) << EncoderError();
}
#if CONFIG_VP8_ENCODER || CONFIG_VP9_ENCODER
void Control(int ctrl_id, vpx_active_map_t *arg) {
const vpx_codec_err_t res = vpx_codec_control_(&encoder_, ctrl_id, arg);
ASSERT_EQ(VPX_CODEC_OK, res) << EncoderError();
}
#endif
void set_deadline(unsigned long deadline) {
deadline_ = deadline;
}
protected:
virtual vpx_codec_iface_t* CodecInterface() const = 0;
const char *EncoderError() {
const char *detail = vpx_codec_error_detail(&encoder_);
return detail ? detail : vpx_codec_error(&encoder_);
}
// Encode an image
void EncodeFrameInternal(const VideoSource &video,
const unsigned long frame_flags);
// Flush the encoder on EOS
void Flush();
vpx_codec_ctx_t encoder_;
vpx_codec_enc_cfg_t cfg_;
unsigned long deadline_;
unsigned long init_flags_;
TwopassStatsStore *stats_;
};
// Common test functionality for all Encoder tests.
//
// This class is a mixin which provides the main loop common to all
// encoder tests. It provides hooks which can be overridden by subclasses
// to implement each test's specific behavior, while centralizing the bulk
// of the boilerplate. Note that it doesn't inherit the gtest testing
// classes directly, so that tests can be parameterized differently.
class EncoderTest {
protected:
explicit EncoderTest(const CodecFactory *codec)
: codec_(codec), abort_(false), init_flags_(0), frame_flags_(0),
last_pts_(0) {}
virtual ~EncoderTest() {}
// Initialize the cfg_ member with the default configuration.
void InitializeConfig();
// Map the TestMode enum to the deadline_ and passes_ variables.
void SetMode(TestMode mode);
// Main loop
virtual void RunLoop(VideoSource *video);
// Hook to be called at the beginning of a pass.
virtual void BeginPassHook(unsigned int /*pass*/) {}
// Hook to be called at the end of a pass.
virtual void EndPassHook() {}
// Hook to be called before encoding a frame.
virtual void PreEncodeFrameHook(VideoSource* /*video*/) {}
virtual void PreEncodeFrameHook(VideoSource* /*video*/,
Encoder* /*encoder*/) {}
// Hook to be called on every compressed data packet.
virtual void FramePktHook(const vpx_codec_cx_pkt_t* /*pkt*/) {}
// Hook to be called on every PSNR packet.
virtual void PSNRPktHook(const vpx_codec_cx_pkt_t* /*pkt*/) {}
// Hook to determine whether the encode loop should continue.
virtual bool Continue() const {
return !(::testing::Test::HasFatalFailure() || abort_);
}
const CodecFactory *codec_;
// Hook to determine whether to decode frame after encoding
virtual bool DoDecode() const { return 1; }
// Hook to handle encode/decode mismatch
virtual void MismatchHook(const vpx_image_t *img1,
const vpx_image_t *img2);
// Hook to be called on every decompressed frame.
virtual void DecompressedFrameHook(const vpx_image_t& /*img*/,
vpx_codec_pts_t /*pts*/) {}
// Hook to be called to handle decode result. Return true to continue.
virtual bool HandleDecodeResult(const vpx_codec_err_t res_dec,
const VideoSource& /*video*/,
Decoder *decoder) {
EXPECT_EQ(VPX_CODEC_OK, res_dec) << decoder->DecodeError();
return VPX_CODEC_OK == res_dec;
}
// Hook that can modify the encoder's output data
virtual const vpx_codec_cx_pkt_t *MutateEncoderOutputHook(
const vpx_codec_cx_pkt_t *pkt) {
return pkt;
}
bool abort_;
vpx_codec_enc_cfg_t cfg_;
unsigned int passes_;
unsigned long deadline_;
TwopassStatsStore stats_;
unsigned long init_flags_;
unsigned long frame_flags_;
vpx_codec_pts_t last_pts_;
};
} // namespace libvpx_test
#endif // TEST_ENCODE_TEST_DRIVER_H_