third_party/aom/test/encode_test_driver.h

   1 /*
   2  * Copyright (c) 2016, Alliance for Open Media. All rights reserved
   3  *
   4  * This source code is subject to the terms of the BSD 2 Clause License and
   5  * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
   6  * was not distributed with this source code in the LICENSE file, you can
   7  * obtain it at www.aomedia.org/license/software. If the Alliance for Open
   8  * Media Patent License 1.0 was not distributed with this source code in the
   9  * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
  10  */
  11 #ifndef AOM_TEST_ENCODE_TEST_DRIVER_H_
  12 #define AOM_TEST_ENCODE_TEST_DRIVER_H_
  13
  14 #include <string>
  15 #include <vector>
  16
  17 #include "third_party/googletest/src/googletest/include/gtest/gtest.h"
  18
  19 #include "config/aom_config.h"
  20
  21 #if CONFIG_AV1_ENCODER
  22 #include "aom/aomcx.h"
  23 #endif
  24 #include "aom/aom_encoder.h"
  25
  26 namespace libaom_test {
  27
  28 class CodecFactory;
  29 class VideoSource;
  30
  31 enum TestMode { kRealTime, kOnePassGood, kTwoPassGood };
  32 #define ALL_TEST_MODES                                                     \
  33   ::testing::Values(::libaom_test::kRealTime, ::libaom_test::kOnePassGood, \
  34                     ::libaom_test::kTwoPassGood)
  35
  36 #define ONE_PASS_TEST_MODES \
  37   ::testing::Values(::libaom_test::kRealTime, ::libaom_test::kOnePassGood)
  38
  39 #define TWO_PASS_TEST_MODES ::testing::Values(::libaom_test::kTwoPassGood)
  40
  41 #define NONREALTIME_TEST_MODES \
  42   ::testing::Values(::libaom_test::kOnePassGood, ::libaom_test::kTwoPassGood)
  43
  44 // Provides an object to handle the libaom get_cx_data() iteration pattern
  45 class CxDataIterator {
  46  public:
  47   explicit CxDataIterator(aom_codec_ctx_t *encoder)
  48       : encoder_(encoder), iter_(NULL) {}
  49
  50   const aom_codec_cx_pkt_t *Next() {
  51     return aom_codec_get_cx_data(encoder_, &iter_);
  52   }
  53
  54  private:
  55   aom_codec_ctx_t *encoder_;
  56   aom_codec_iter_t iter_;
  57 };
  58
  59 // Implements an in-memory store for libaom twopass statistics
  60 class TwopassStatsStore {
  61  public:
  62   void Append(const aom_codec_cx_pkt_t &pkt) {
  63     buffer_.append(reinterpret_cast<char *>(pkt.data.twopass_stats.buf),
  64                    pkt.data.twopass_stats.sz);
  65   }
  66
  67   aom_fixed_buf_t buf() {
  68     const aom_fixed_buf_t buf = { &buffer_[0], buffer_.size() };
  69     return buf;
  70   }
  71
  72   void Reset() { buffer_.clear(); }
  73
  74  protected:
  75   std::string buffer_;
  76 };
  77
  78 // Provides a simplified interface to manage one video encoding pass, given
  79 // a configuration and video source.
  80 //
  81 // TODO(jkoleszar): The exact services it provides and the appropriate
  82 // level of abstraction will be fleshed out as more tests are written.
  83 class Encoder {
  84  public:
  85   Encoder(aom_codec_enc_cfg_t cfg, const uint32_t init_flags,
  86           TwopassStatsStore *stats)
  87       : cfg_(cfg), init_flags_(init_flags), stats_(stats) {
  88     memset(&encoder_, 0, sizeof(encoder_));
  89   }
  90
  91   virtual ~Encoder() { aom_codec_destroy(&encoder_); }
  92
  93   CxDataIterator GetCxData() { return CxDataIterator(&encoder_); }
  94
  95   void InitEncoder(VideoSource *video);
  96
  97   const aom_image_t *GetPreviewFrame() {
  98     return aom_codec_get_preview_frame(&encoder_);
  99   }
 100   // This is a thin wrapper around aom_codec_encode(), so refer to
 101   // aom_encoder.h for its semantics.
 102   void EncodeFrame(VideoSource *video, const unsigned long frame_flags);
 103
 104   // Convenience wrapper for EncodeFrame()
 105   void EncodeFrame(VideoSource *video) { EncodeFrame(video, 0); }
 106
 107   void Control(int ctrl_id, int arg) {
 108     const aom_codec_err_t res = aom_codec_control_(&encoder_, ctrl_id, arg);
 109     ASSERT_EQ(AOM_CODEC_OK, res) << EncoderError();
 110   }
 111
 112   void Control(int ctrl_id, int *arg) {
 113     const aom_codec_err_t res = aom_codec_control_(&encoder_, ctrl_id, arg);
 114     ASSERT_EQ(AOM_CODEC_OK, res) << EncoderError();
 115   }
 116
 117   void Control(int ctrl_id, struct aom_scaling_mode *arg) {
 118     const aom_codec_err_t res = aom_codec_control_(&encoder_, ctrl_id, arg);
 119     ASSERT_EQ(AOM_CODEC_OK, res) << EncoderError();
 120   }
 121
 122 #if CONFIG_AV1_ENCODER
 123   void Control(int ctrl_id, aom_active_map_t *arg) {
 124     const aom_codec_err_t res = aom_codec_control_(&encoder_, ctrl_id, arg);
 125     ASSERT_EQ(AOM_CODEC_OK, res) << EncoderError();
 126   }
 127 #endif
 128
 129   void Config(const aom_codec_enc_cfg_t *cfg) {
 130     const aom_codec_err_t res = aom_codec_enc_config_set(&encoder_, cfg);
 131     ASSERT_EQ(AOM_CODEC_OK, res) << EncoderError();
 132     cfg_ = *cfg;
 133   }
 134
 135  protected:
 136   virtual aom_codec_iface_t *CodecInterface() const = 0;
 137
 138   const char *EncoderError() {
 139     const char *detail = aom_codec_error_detail(&encoder_);
 140     return detail ? detail : aom_codec_error(&encoder_);
 141   }
 142
 143   // Encode an image
 144   void EncodeFrameInternal(const VideoSource &video,
 145                            const unsigned long frame_flags);
 146
 147   // Flush the encoder on EOS
 148   void Flush();
 149
 150   aom_codec_ctx_t encoder_;
 151   aom_codec_enc_cfg_t cfg_;
 152   unsigned long init_flags_;
 153   TwopassStatsStore *stats_;
 154 };
 155
 156 // Common test functionality for all Encoder tests.
 157 //
 158 // This class is a mixin which provides the main loop common to all
 159 // encoder tests. It provides hooks which can be overridden by subclasses
 160 // to implement each test's specific behavior, while centralizing the bulk
 161 // of the boilerplate. Note that it doesn't inherit the gtest testing
 162 // classes directly, so that tests can be parameterized differently.
 163 class EncoderTest {
 164  protected:
 165   explicit EncoderTest(const CodecFactory *codec)
 166       : codec_(codec), abort_(false), init_flags_(0), frame_flags_(0),
 167         last_pts_(0), mode_(kRealTime) {
 168     // Default to 1 thread.
 169     cfg_.g_threads = 1;
 170   }
 171
 172   virtual ~EncoderTest() {}
 173
 174   // Initialize the cfg_ member with the default configuration.
 175   void InitializeConfig();
 176
 177   // Map the TestMode enum to the passes_ variables.
 178   void SetMode(TestMode mode);
 179
 180   // Set encoder flag.
 181   void set_init_flags(unsigned long flag) {  // NOLINT(runtime/int)
 182     init_flags_ = flag;
 183   }
 184
 185   // Main loop
 186   virtual void RunLoop(VideoSource *video);
 187
 188   // Hook to be called at the beginning of a pass.
 189   virtual void BeginPassHook(unsigned int /*pass*/) {}
 190
 191   // Hook to be called at the end of a pass.
 192   virtual void EndPassHook() {}
 193
 194   // Hook to be called before encoding a frame.
 195   virtual void PreEncodeFrameHook(VideoSource * /*video*/) {}
 196   virtual void PreEncodeFrameHook(VideoSource * /*video*/,
 197                                   Encoder * /*encoder*/) {}
 198
 199   // Hook to be called on every compressed data packet.
 200   virtual void FramePktHook(const aom_codec_cx_pkt_t * /*pkt*/) {}
 201
 202   // Hook to be called on every PSNR packet.
 203   virtual void PSNRPktHook(const aom_codec_cx_pkt_t * /*pkt*/) {}
 204
 205   // Hook to determine whether the encode loop should continue.
 206   virtual bool Continue() const {
 207     return !(::testing::Test::HasFatalFailure() || abort_);
 208   }
 209
 210   // Hook to determine whether to decode frame after encoding
 211   virtual bool DoDecode() const { return true; }
 212
 213   // Hook to determine whether to decode invisible frames after encoding
 214   virtual bool DoDecodeInvisible() const { return true; }
 215
 216   // Hook to handle encode/decode mismatch
 217   virtual void MismatchHook(const aom_image_t *img1, const aom_image_t *img2);
 218
 219   // Hook to be called on every decompressed frame.
 220   virtual void DecompressedFrameHook(const aom_image_t & /*img*/,
 221                                      aom_codec_pts_t /*pts*/) {}
 222
 223   // Hook to be called to handle decode result. Return true to continue.
 224   virtual bool HandleDecodeResult(const aom_codec_err_t res_dec,
 225                                   Decoder *decoder) {
 226     EXPECT_EQ(AOM_CODEC_OK, res_dec) << decoder->DecodeError();
 227     return AOM_CODEC_OK == res_dec;
 228   }
 229
 230   // Hook that can modify the encoder's output data
 231   virtual const aom_codec_cx_pkt_t *MutateEncoderOutputHook(
 232       const aom_codec_cx_pkt_t *pkt) {
 233     return pkt;
 234   }
 235
 236   const CodecFactory *codec_;
 237   bool abort_;
 238   aom_codec_enc_cfg_t cfg_;
 239   unsigned int passes_;
 240   TwopassStatsStore stats_;
 241   unsigned long init_flags_;
 242   unsigned long frame_flags_;
 243   aom_codec_pts_t last_pts_;
 244   TestMode mode_;
 245 };
 246
 247 }  // namespace libaom_test
 248
 249 #endif  // AOM_TEST_ENCODE_TEST_DRIVER_H_