test/tile_independence_test.cc

   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 <cstdio>
  12 #include <cstdlib>
  13 #include <string>
  14 #include "third_party/googletest/src/include/gtest/gtest.h"
  15 #include "test/codec_factory.h"
  16 #include "test/encode_test_driver.h"
  17 #include "test/i420_video_source.h"
  18 #include "test/util.h"
  19 #include "test/md5_helper.h"
  20 extern "C" {
  21 #include "vpx_mem/vpx_mem.h"
  22 }
  23
  24 namespace {
  25 class TileIndependenceTest : public ::libvpx_test::EncoderTest,
  26                              public ::libvpx_test::CodecTestWithParam<int> {
  27  protected:
  28   TileIndependenceTest()
  29       : EncoderTest(GET_PARAM(0)),
  30         md5_fw_order_(),
  31         md5_inv_order_(),
  32         n_tiles_(GET_PARAM(1)) {
  33     init_flags_ = VPX_CODEC_USE_PSNR;
  34     vpx_codec_dec_cfg_t cfg;
  35     cfg.w = 704;
  36     cfg.h = 144;
  37     cfg.threads = 1;
  38     fw_dec_ = codec_->CreateDecoder(cfg, 0);
  39     inv_dec_ = codec_->CreateDecoder(cfg, 0);
  40     inv_dec_->Control(VP9_INVERT_TILE_DECODE_ORDER, 1);
  41   }
  42
  43   virtual ~TileIndependenceTest() {
  44     delete fw_dec_;
  45     delete inv_dec_;
  46   }
  47
  48   virtual void SetUp() {
  49     InitializeConfig();
  50     SetMode(libvpx_test::kTwoPassGood);
  51   }
  52
  53   virtual void PreEncodeFrameHook(libvpx_test::VideoSource *video,
  54                                   libvpx_test::Encoder *encoder) {
  55     if (video->frame() == 1) {
  56       encoder->Control(VP9E_SET_TILE_COLUMNS, n_tiles_);
  57     }
  58   }
  59
  60   void UpdateMD5(::libvpx_test::Decoder *dec, const vpx_codec_cx_pkt_t *pkt,
  61                  ::libvpx_test::MD5 *md5) {
  62     const vpx_codec_err_t res = dec->DecodeFrame(
  63         reinterpret_cast<uint8_t*>(pkt->data.frame.buf), pkt->data.frame.sz);
  64     if (res != VPX_CODEC_OK) {
  65       abort_ = true;
  66       ASSERT_EQ(VPX_CODEC_OK, res);
  67     }
  68     const vpx_image_t *img = dec->GetDxData().Next();
  69     md5->Add(img);
  70   }
  71
  72   virtual void FramePktHook(const vpx_codec_cx_pkt_t *pkt) {
  73     UpdateMD5(fw_dec_, pkt, &md5_fw_order_);
  74     UpdateMD5(inv_dec_, pkt, &md5_inv_order_);
  75   }
  76
  77   ::libvpx_test::MD5 md5_fw_order_, md5_inv_order_;
  78   ::libvpx_test::Decoder *fw_dec_, *inv_dec_;
  79
  80  private:
  81   int n_tiles_;
  82 };
  83
  84 // run an encode with 2 or 4 tiles, and do the decode both in normal and
  85 // inverted tile ordering. Ensure that the MD5 of the output in both cases
  86 // is identical. If so, tiles are considered independent and the test passes.
  87 TEST_P(TileIndependenceTest, MD5Match) {
  88   const vpx_rational timebase = { 33333333, 1000000000 };
  89   cfg_.g_timebase = timebase;
  90   cfg_.rc_target_bitrate = 500;
  91   cfg_.g_lag_in_frames = 25;
  92   cfg_.rc_end_usage = VPX_VBR;
  93
  94   libvpx_test::I420VideoSource video("hantro_collage_w352h288.yuv", 704, 144,
  95                                      timebase.den, timebase.num, 0, 30);
  96   ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
  97
  98   const char *md5_fw_str = md5_fw_order_.Get();
  99   const char *md5_inv_str = md5_inv_order_.Get();
 100
 101   // could use ASSERT_EQ(!memcmp(.., .., 16) here, but this gives nicer
 102   // output if it fails. Not sure if it's helpful since it's really just
 103   // a MD5...
 104   ASSERT_STREQ(md5_fw_str, md5_inv_str);
 105 }
 106
 107 VP9_INSTANTIATE_TEST_CASE(TileIndependenceTest, ::testing::Range(0, 2, 1));
 108
 109 }  // namespace