1/*
2 *  Copyright (c) 2012 The WebM project authors. All Rights Reserved.
3 *
4 *  Use of this source code is governed by a BSD-style license
5 *  that can be found in the LICENSE file in the root of the source
6 *  tree. An additional intellectual property rights grant can be found
7 *  in the file PATENTS.  All contributing project authors may
8 *  be found in the AUTHORS file in the root of the source tree.
9 */
10
11#include <string>
12
13#include "third_party/googletest/src/include/gtest/gtest.h"
14
15#include "./vpx_config.h"
16#include "test/codec_factory.h"
17#include "test/decode_test_driver.h"
18#include "test/encode_test_driver.h"
19#include "test/register_state_check.h"
20#include "test/video_source.h"
21
22namespace libvpx_test {
23void Encoder::InitEncoder(VideoSource *video) {
24  vpx_codec_err_t res;
25  const vpx_image_t *img = video->img();
26
27  if (video->img() && !encoder_.priv) {
28    cfg_.g_w = img->d_w;
29    cfg_.g_h = img->d_h;
30    cfg_.g_timebase = video->timebase();
31    cfg_.rc_twopass_stats_in = stats_->buf();
32
33    res = vpx_codec_enc_init(&encoder_, CodecInterface(), &cfg_, init_flags_);
34    ASSERT_EQ(VPX_CODEC_OK, res) << EncoderError();
35
36#if CONFIG_VP9_ENCODER
37    if (CodecInterface() == &vpx_codec_vp9_cx_algo) {
38      // Default to 1 tile column for VP9.
39      const int log2_tile_columns = 0;
40      res = vpx_codec_control_(&encoder_, VP9E_SET_TILE_COLUMNS,
41                               log2_tile_columns);
42      ASSERT_EQ(VPX_CODEC_OK, res) << EncoderError();
43    } else
44#endif
45    {
46#if CONFIG_VP8_ENCODER
47      ASSERT_EQ(&vpx_codec_vp8_cx_algo, CodecInterface())
48          << "Unknown Codec Interface";
49#endif
50    }
51  }
52}
53
54void Encoder::EncodeFrame(VideoSource *video, const unsigned long frame_flags) {
55  if (video->img()) {
56    EncodeFrameInternal(*video, frame_flags);
57  } else {
58    Flush();
59  }
60
61  // Handle twopass stats
62  CxDataIterator iter = GetCxData();
63
64  while (const vpx_codec_cx_pkt_t *pkt = iter.Next()) {
65    if (pkt->kind != VPX_CODEC_STATS_PKT) continue;
66
67    stats_->Append(*pkt);
68  }
69}
70
71void Encoder::EncodeFrameInternal(const VideoSource &video,
72                                  const unsigned long frame_flags) {
73  vpx_codec_err_t res;
74  const vpx_image_t *img = video.img();
75
76  // Handle frame resizing
77  if (cfg_.g_w != img->d_w || cfg_.g_h != img->d_h) {
78    cfg_.g_w = img->d_w;
79    cfg_.g_h = img->d_h;
80    res = vpx_codec_enc_config_set(&encoder_, &cfg_);
81    ASSERT_EQ(VPX_CODEC_OK, res) << EncoderError();
82  }
83
84  // Encode the frame
85  API_REGISTER_STATE_CHECK(res = vpx_codec_encode(&encoder_, img, video.pts(),
86                                                  video.duration(), frame_flags,
87                                                  deadline_));
88  ASSERT_EQ(VPX_CODEC_OK, res) << EncoderError();
89}
90
91void Encoder::Flush() {
92  const vpx_codec_err_t res =
93      vpx_codec_encode(&encoder_, NULL, 0, 0, 0, deadline_);
94  if (!encoder_.priv)
95    ASSERT_EQ(VPX_CODEC_ERROR, res) << EncoderError();
96  else
97    ASSERT_EQ(VPX_CODEC_OK, res) << EncoderError();
98}
99
100void EncoderTest::InitializeConfig() {
101  const vpx_codec_err_t res = codec_->DefaultEncoderConfig(&cfg_, 0);
102  dec_cfg_ = vpx_codec_dec_cfg_t();
103  ASSERT_EQ(VPX_CODEC_OK, res);
104}
105
106void EncoderTest::SetMode(TestMode mode) {
107  switch (mode) {
108    case kRealTime: deadline_ = VPX_DL_REALTIME; break;
109
110    case kOnePassGood:
111    case kTwoPassGood: deadline_ = VPX_DL_GOOD_QUALITY; break;
112
113    case kOnePassBest:
114    case kTwoPassBest: deadline_ = VPX_DL_BEST_QUALITY; break;
115
116    default: ASSERT_TRUE(false) << "Unexpected mode " << mode;
117  }
118
119  if (mode == kTwoPassGood || mode == kTwoPassBest) {
120    passes_ = 2;
121  } else {
122    passes_ = 1;
123  }
124}
125// The function should return "true" most of the time, therefore no early
126// break-out is implemented within the match checking process.
127static bool compare_img(const vpx_image_t *img1, const vpx_image_t *img2) {
128  bool match = (img1->fmt == img2->fmt) && (img1->cs == img2->cs) &&
129               (img1->d_w == img2->d_w) && (img1->d_h == img2->d_h);
130
131  const unsigned int width_y = img1->d_w;
132  const unsigned int height_y = img1->d_h;
133  unsigned int i;
134  for (i = 0; i < height_y; ++i) {
135    match = (memcmp(img1->planes[VPX_PLANE_Y] + i * img1->stride[VPX_PLANE_Y],
136                    img2->planes[VPX_PLANE_Y] + i * img2->stride[VPX_PLANE_Y],
137                    width_y) == 0) &&
138            match;
139  }
140  const unsigned int width_uv = (img1->d_w + 1) >> 1;
141  const unsigned int height_uv = (img1->d_h + 1) >> 1;
142  for (i = 0; i < height_uv; ++i) {
143    match = (memcmp(img1->planes[VPX_PLANE_U] + i * img1->stride[VPX_PLANE_U],
144                    img2->planes[VPX_PLANE_U] + i * img2->stride[VPX_PLANE_U],
145                    width_uv) == 0) &&
146            match;
147  }
148  for (i = 0; i < height_uv; ++i) {
149    match = (memcmp(img1->planes[VPX_PLANE_V] + i * img1->stride[VPX_PLANE_V],
150                    img2->planes[VPX_PLANE_V] + i * img2->stride[VPX_PLANE_V],
151                    width_uv) == 0) &&
152            match;
153  }
154  return match;
155}
156
157void EncoderTest::MismatchHook(const vpx_image_t * /*img1*/,
158                               const vpx_image_t * /*img2*/) {
159  ASSERT_TRUE(0) << "Encode/Decode mismatch found";
160}
161
162void EncoderTest::RunLoop(VideoSource *video) {
163  vpx_codec_dec_cfg_t dec_cfg = vpx_codec_dec_cfg_t();
164
165  stats_.Reset();
166
167  ASSERT_TRUE(passes_ == 1 || passes_ == 2);
168  for (unsigned int pass = 0; pass < passes_; pass++) {
169    last_pts_ = 0;
170
171    if (passes_ == 1) {
172      cfg_.g_pass = VPX_RC_ONE_PASS;
173    } else if (pass == 0) {
174      cfg_.g_pass = VPX_RC_FIRST_PASS;
175    } else {
176      cfg_.g_pass = VPX_RC_LAST_PASS;
177    }
178
179    BeginPassHook(pass);
180    testing::internal::scoped_ptr<Encoder> encoder(
181        codec_->CreateEncoder(cfg_, deadline_, init_flags_, &stats_));
182    ASSERT_TRUE(encoder.get() != NULL);
183
184    ASSERT_NO_FATAL_FAILURE(video->Begin());
185    encoder->InitEncoder(video);
186    ASSERT_FALSE(::testing::Test::HasFatalFailure());
187
188    unsigned long dec_init_flags = 0;  // NOLINT
189    // Use fragment decoder if encoder outputs partitions.
190    // NOTE: fragment decoder and partition encoder are only supported by VP8.
191    if (init_flags_ & VPX_CODEC_USE_OUTPUT_PARTITION) {
192      dec_init_flags |= VPX_CODEC_USE_INPUT_FRAGMENTS;
193    }
194    testing::internal::scoped_ptr<Decoder> decoder(
195        codec_->CreateDecoder(dec_cfg, dec_init_flags));
196    bool again;
197    for (again = true; again; video->Next()) {
198      again = (video->img() != NULL);
199
200      PreEncodeFrameHook(video);
201      PreEncodeFrameHook(video, encoder.get());
202      encoder->EncodeFrame(video, frame_flags_);
203
204      CxDataIterator iter = encoder->GetCxData();
205
206      bool has_cxdata = false;
207      bool has_dxdata = false;
208      while (const vpx_codec_cx_pkt_t *pkt = iter.Next()) {
209        pkt = MutateEncoderOutputHook(pkt);
210        again = true;
211        switch (pkt->kind) {
212          case VPX_CODEC_CX_FRAME_PKT:
213            has_cxdata = true;
214            if (decoder.get() != NULL && DoDecode()) {
215              vpx_codec_err_t res_dec = decoder->DecodeFrame(
216                  (const uint8_t *)pkt->data.frame.buf, pkt->data.frame.sz);
217
218              if (!HandleDecodeResult(res_dec, *video, decoder.get())) break;
219
220              has_dxdata = true;
221            }
222            ASSERT_GE(pkt->data.frame.pts, last_pts_);
223            last_pts_ = pkt->data.frame.pts;
224            FramePktHook(pkt);
225            break;
226
227          case VPX_CODEC_PSNR_PKT: PSNRPktHook(pkt); break;
228
229          case VPX_CODEC_STATS_PKT: StatsPktHook(pkt); break;
230
231          default: break;
232        }
233      }
234
235      // Flush the decoder when there are no more fragments.
236      if ((init_flags_ & VPX_CODEC_USE_OUTPUT_PARTITION) && has_dxdata) {
237        const vpx_codec_err_t res_dec = decoder->DecodeFrame(NULL, 0);
238        if (!HandleDecodeResult(res_dec, *video, decoder.get())) break;
239      }
240
241      if (has_dxdata && has_cxdata) {
242        const vpx_image_t *img_enc = encoder->GetPreviewFrame();
243        DxDataIterator dec_iter = decoder->GetDxData();
244        const vpx_image_t *img_dec = dec_iter.Next();
245        if (img_enc && img_dec) {
246          const bool res = compare_img(img_enc, img_dec);
247          if (!res) {  // Mismatch
248            MismatchHook(img_enc, img_dec);
249          }
250        }
251        if (img_dec) DecompressedFrameHook(*img_dec, video->pts());
252      }
253      if (!Continue()) break;
254    }
255
256    EndPassHook();
257
258    if (!Continue()) break;
259  }
260}
261
262}  // namespace libvpx_test
263