Import aom library

This is the reference implementation for the Alliance for Open Media's av1 video code.

The commit used was 4d668d7feb1f8abd809d1bca0418570a7f142a36.

1 files changed, 323 insertions, 0 deletions

diff --git a/third_party/aom/test/encode_test_driver.cc b/third_party/aom/test/encode_test_driver.cc
new file mode 100644
index 000000000..80f155ab2
--- /dev/null
+++ b/third_party/aom/test/encode_test_driver.cc
@@ -0,0 +1,323 @@
+/*
+ * Copyright (c) 2016, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+*/
+
+#include <string>
+
+#include "third_party/googletest/src/googletest/include/gtest/gtest.h"
+
+#include "./aom_config.h"
+#include "aom_ports/mem.h"
+#include "test/codec_factory.h"
+#include "test/decode_test_driver.h"
+#include "test/encode_test_driver.h"
+#include "test/register_state_check.h"
+#include "test/video_source.h"
+
+namespace libaom_test {
+void Encoder::InitEncoder(VideoSource *video) {
+  aom_codec_err_t res;
+  const aom_image_t *img = video->img();
+
+  if (video->img() && !encoder_.priv) {
+    cfg_.g_w = img->d_w;
+    cfg_.g_h = img->d_h;
+    cfg_.g_timebase = video->timebase();
+    cfg_.rc_twopass_stats_in = stats_->buf();
+
+    res = aom_codec_enc_init(&encoder_, CodecInterface(), &cfg_, init_flags_);
+    ASSERT_EQ(AOM_CODEC_OK, res) << EncoderError();
+
+#if CONFIG_AV1_ENCODER
+    if (CodecInterface() == &aom_codec_av1_cx_algo) {
+// Default to 1 tile column for AV1. With CONFIG_EXT_TILE, the
+// default is already the largest possible tile size
+#if !CONFIG_EXT_TILE
+      const int log2_tile_columns = 0;
+      res = aom_codec_control_(&encoder_, AV1E_SET_TILE_COLUMNS,
+                               log2_tile_columns);
+      ASSERT_EQ(AOM_CODEC_OK, res) << EncoderError();
+#endif  // !CONFIG_EXT_TILE
+    } else
+#endif
+    {
+    }
+  }
+}
+
+void Encoder::EncodeFrame(VideoSource *video, const unsigned long frame_flags) {
+  if (video->img())
+    EncodeFrameInternal(*video, frame_flags);
+  else
+    Flush();
+
+  // Handle twopass stats
+  CxDataIterator iter = GetCxData();
+
+  while (const aom_codec_cx_pkt_t *pkt = iter.Next()) {
+    if (pkt->kind != AOM_CODEC_STATS_PKT) continue;
+
+    stats_->Append(*pkt);
+  }
+}
+
+void Encoder::EncodeFrameInternal(const VideoSource &video,
+                                  const unsigned long frame_flags) {
+  aom_codec_err_t res;
+  const aom_image_t *img = video.img();
+
+  // Handle frame resizing
+  if (cfg_.g_w != img->d_w || cfg_.g_h != img->d_h) {
+    cfg_.g_w = img->d_w;
+    cfg_.g_h = img->d_h;
+    res = aom_codec_enc_config_set(&encoder_, &cfg_);
+    ASSERT_EQ(AOM_CODEC_OK, res) << EncoderError();
+  }
+
+  // Encode the frame
+  API_REGISTER_STATE_CHECK(res = aom_codec_encode(&encoder_, img, video.pts(),
+                                                  video.duration(), frame_flags,
+                                                  deadline_));
+  ASSERT_EQ(AOM_CODEC_OK, res) << EncoderError();
+}
+
+void Encoder::Flush() {
+  const aom_codec_err_t res =
+      aom_codec_encode(&encoder_, NULL, 0, 0, 0, deadline_);
+  if (!encoder_.priv)
+    ASSERT_EQ(AOM_CODEC_ERROR, res) << EncoderError();
+  else
+    ASSERT_EQ(AOM_CODEC_OK, res) << EncoderError();
+}
+
+void EncoderTest::InitializeConfig() {
+  const aom_codec_err_t res = codec_->DefaultEncoderConfig(&cfg_, 0);
+  dec_cfg_ = aom_codec_dec_cfg_t();
+  ASSERT_EQ(AOM_CODEC_OK, res);
+}
+
+void EncoderTest::SetMode(TestMode mode) {
+  switch (mode) {
+    case kOnePassGood:
+    case kTwoPassGood: deadline_ = AOM_DL_GOOD_QUALITY; break;
+    case kRealTime:
+      deadline_ = AOM_DL_GOOD_QUALITY;
+      cfg_.g_lag_in_frames = 0;
+      break;
+    default: ASSERT_TRUE(false) << "Unexpected mode " << mode;
+  }
+  mode_ = mode;
+  if (mode == kTwoPassGood)
+    passes_ = 2;
+  else
+    passes_ = 1;
+}
+
+static bool compare_plane(const uint8_t *const buf1, int stride1,
+                          const uint8_t *const buf2, int stride2, int w, int h,
+                          int *const mismatch_row, int *const mismatch_col,
+                          int *const mismatch_pix1, int *const mismatch_pix2) {
+  int r, c;
+
+  for (r = 0; r < h; ++r) {
+    for (c = 0; c < w; ++c) {
+      const int pix1 = buf1[r * stride1 + c];
+      const int pix2 = buf2[r * stride2 + c];
+
+      if (pix1 != pix2) {
+        if (mismatch_row != NULL) *mismatch_row = r;
+        if (mismatch_col != NULL) *mismatch_col = c;
+        if (mismatch_pix1 != NULL) *mismatch_pix1 = pix1;
+        if (mismatch_pix2 != NULL) *mismatch_pix2 = pix2;
+        return false;
+      }
+    }
+  }
+
+  return true;
+}
+
+// The function should return "true" most of the time, therefore no early
+// break-out is implemented within the match checking process.
+static bool compare_img(const aom_image_t *img1, const aom_image_t *img2,
+                        int *const mismatch_row, int *const mismatch_col,
+                        int *const mismatch_plane, int *const mismatch_pix1,
+                        int *const mismatch_pix2) {
+  const unsigned int w_y = img1->d_w;
+  const unsigned int h_y = img1->d_h;
+  const unsigned int w_uv = ROUND_POWER_OF_TWO(w_y, img1->x_chroma_shift);
+  const unsigned int h_uv = ROUND_POWER_OF_TWO(h_y, img1->y_chroma_shift);
+
+  if (img1->fmt != img2->fmt || img1->cs != img2->cs ||
+      img1->d_w != img2->d_w || img1->d_h != img2->d_h) {
+    if (mismatch_row != NULL) *mismatch_row = -1;
+    if (mismatch_col != NULL) *mismatch_col = -1;
+    return false;
+  }
+
+  if (!compare_plane(img1->planes[AOM_PLANE_Y], img1->stride[AOM_PLANE_Y],
+                     img2->planes[AOM_PLANE_Y], img2->stride[AOM_PLANE_Y], w_y,
+                     h_y, mismatch_row, mismatch_col, mismatch_pix1,
+                     mismatch_pix2)) {
+    if (mismatch_plane != NULL) *mismatch_plane = AOM_PLANE_Y;
+    return false;
+  }
+
+  if (!compare_plane(img1->planes[AOM_PLANE_U], img1->stride[AOM_PLANE_U],
+                     img2->planes[AOM_PLANE_U], img2->stride[AOM_PLANE_U], w_uv,
+                     h_uv, mismatch_row, mismatch_col, mismatch_pix1,
+                     mismatch_pix2)) {
+    if (mismatch_plane != NULL) *mismatch_plane = AOM_PLANE_U;
+    return false;
+  }
+
+  if (!compare_plane(img1->planes[AOM_PLANE_V], img1->stride[AOM_PLANE_V],
+                     img2->planes[AOM_PLANE_V], img2->stride[AOM_PLANE_V], w_uv,
+                     h_uv, mismatch_row, mismatch_col, mismatch_pix1,
+                     mismatch_pix2)) {
+    if (mismatch_plane != NULL) *mismatch_plane = AOM_PLANE_U;
+    return false;
+  }
+
+  return true;
+}
+
+void EncoderTest::MismatchHook(const aom_image_t *img_enc,
+                               const aom_image_t *img_dec) {
+  int mismatch_row = 0;
+  int mismatch_col = 0;
+  int mismatch_plane = 0;
+  int mismatch_pix_enc = 0;
+  int mismatch_pix_dec = 0;
+
+  ASSERT_FALSE(compare_img(img_enc, img_dec, &mismatch_row, &mismatch_col,
+                           &mismatch_plane, &mismatch_pix_enc,
+                           &mismatch_pix_dec));
+
+  GTEST_FAIL() << "Encode/Decode mismatch found:" << std::endl
+               << "  pixel value enc/dec: " << mismatch_pix_enc << "/"
+               << mismatch_pix_dec << std::endl
+               << "                plane: " << mismatch_plane << std::endl
+               << "              row/col: " << mismatch_row << "/"
+               << mismatch_col << std::endl;
+}
+
+void EncoderTest::RunLoop(VideoSource *video) {
+  aom_codec_dec_cfg_t dec_cfg = aom_codec_dec_cfg_t();
+
+  stats_.Reset();
+
+  ASSERT_TRUE(passes_ == 1 || passes_ == 2);
+  for (unsigned int pass = 0; pass < passes_; pass++) {
+    last_pts_ = 0;
+
+    if (passes_ == 1)
+      cfg_.g_pass = AOM_RC_ONE_PASS;
+    else if (pass == 0)
+      cfg_.g_pass = AOM_RC_FIRST_PASS;
+    else
+      cfg_.g_pass = AOM_RC_LAST_PASS;
+
+    BeginPassHook(pass);
+    testing::internal::scoped_ptr<Encoder> encoder(
+        codec_->CreateEncoder(cfg_, deadline_, init_flags_, &stats_));
+    ASSERT_TRUE(encoder.get() != NULL);
+
+    ASSERT_NO_FATAL_FAILURE(video->Begin());
+    encoder->InitEncoder(video);
+
+    if (mode_ == kRealTime) {
+      encoder->Control(AOME_SET_ENABLEAUTOALTREF, 0);
+    }
+
+    ASSERT_FALSE(::testing::Test::HasFatalFailure());
+
+    unsigned long dec_init_flags = 0;  // NOLINT
+    // Use fragment decoder if encoder outputs partitions.
+    // NOTE: fragment decoder and partition encoder are only supported by VP8.
+    if (init_flags_ & AOM_CODEC_USE_OUTPUT_PARTITION)
+      dec_init_flags |= AOM_CODEC_USE_INPUT_FRAGMENTS;
+    testing::internal::scoped_ptr<Decoder> decoder(
+        codec_->CreateDecoder(dec_cfg, dec_init_flags));
+#if CONFIG_AV1 && CONFIG_EXT_TILE
+    if (decoder->IsAV1()) {
+      // Set dec_cfg.tile_row = -1 and dec_cfg.tile_col = -1 so that the whole
+      // frame is decoded.
+      decoder->Control(AV1_SET_DECODE_TILE_ROW, -1);
+      decoder->Control(AV1_SET_DECODE_TILE_COL, -1);
+    }
+#endif
+
+    bool again;
+    for (again = true; again; video->Next()) {
+      again = (video->img() != NULL);
+
+      PreEncodeFrameHook(video);
+      PreEncodeFrameHook(video, encoder.get());
+      encoder->EncodeFrame(video, frame_flags_);
+
+      CxDataIterator iter = encoder->GetCxData();
+
+      bool has_cxdata = false;
+      bool has_dxdata = false;
+      while (const aom_codec_cx_pkt_t *pkt = iter.Next()) {
+        pkt = MutateEncoderOutputHook(pkt);
+        again = true;
+        switch (pkt->kind) {
+          case AOM_CODEC_CX_FRAME_PKT:
+            has_cxdata = true;
+            if (decoder.get() != NULL && DoDecode()) {
+              aom_codec_err_t res_dec = decoder->DecodeFrame(
+                  (const uint8_t *)pkt->data.frame.buf, pkt->data.frame.sz);
+
+              if (!HandleDecodeResult(res_dec, decoder.get())) break;
+
+              has_dxdata = true;
+            }
+            ASSERT_GE(pkt->data.frame.pts, last_pts_);
+            last_pts_ = pkt->data.frame.pts;
+            FramePktHook(pkt);
+            break;
+
+          case AOM_CODEC_PSNR_PKT: PSNRPktHook(pkt); break;
+
+          default: break;
+        }
+      }
+
+      // Flush the decoder when there are no more fragments.
+      if ((init_flags_ & AOM_CODEC_USE_OUTPUT_PARTITION) && has_dxdata) {
+        const aom_codec_err_t res_dec = decoder->DecodeFrame(NULL, 0);
+        if (!HandleDecodeResult(res_dec, decoder.get())) break;
+      }
+
+      if (has_dxdata && has_cxdata) {
+        const aom_image_t *img_enc = encoder->GetPreviewFrame();
+        DxDataIterator dec_iter = decoder->GetDxData();
+        const aom_image_t *img_dec = dec_iter.Next();
+        if (img_enc && img_dec) {
+          const bool res =
+              compare_img(img_enc, img_dec, NULL, NULL, NULL, NULL, NULL);
+          if (!res) {  // Mismatch
+            MismatchHook(img_enc, img_dec);
+          }
+        }
+        if (img_dec) DecompressedFrameHook(*img_dec, video->pts());
+      }
+      if (!Continue()) break;
+    }
+
+    EndPassHook();
+
+    if (!Continue()) break;
+  }
+}
+
+}  // namespace libaom_test