test/decode_test_driver.cc

   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
  12 #include "third_party/googletest/src/googletest/include/gtest/gtest.h"
  13
  14 #include "test/codec_factory.h"
  15 #include "test/decode_test_driver.h"
  16 #include "test/register_state_check.h"
  17 #include "test/video_source.h"
  18
  19 namespace libaom_test {
  20
  21 const char kVP8Name[] = "WebM Project VP8";
  22 const char kAV1Name[] = "AOMedia Project AV1 Decoder";
  23
  24 aom_codec_err_t Decoder::PeekStream(const uint8_t *cxdata, size_t size,
  25                                     aom_codec_stream_info_t *stream_info) {
  26   return aom_codec_peek_stream_info(
  27       CodecInterface(), cxdata, static_cast<unsigned int>(size), stream_info);
  28 }
  29
  30 aom_codec_err_t Decoder::DecodeFrame(const uint8_t *cxdata, size_t size) {
  31   return DecodeFrame(cxdata, size, NULL);
  32 }
  33
  34 aom_codec_err_t Decoder::DecodeFrame(const uint8_t *cxdata, size_t size,
  35                                      void *user_priv) {
  36   aom_codec_err_t res_dec;
  37   InitOnce();
  38   API_REGISTER_STATE_CHECK(
  39       res_dec = aom_codec_decode(
  40           &decoder_, cxdata, static_cast<unsigned int>(size), user_priv, 0));
  41   return res_dec;
  42 }
  43
  44 bool Decoder::IsVP8() const {
  45   const char *codec_name = GetDecoderName();
  46   return strncmp(kVP8Name, codec_name, sizeof(kVP8Name) - 1) == 0;
  47 }
  48
  49 bool Decoder::IsAV1() const {
  50   const char *codec_name = GetDecoderName();
  51   return strncmp(kAV1Name, codec_name, sizeof(kAV1Name) - 1) == 0;
  52 }
  53
  54 void DecoderTest::HandlePeekResult(Decoder *const decoder,
  55                                    CompressedVideoSource *video,
  56                                    const aom_codec_err_t res_peek) {
  57   const bool is_vp8 = decoder->IsVP8();
  58   if (is_vp8) {
  59     /* Vp8's implementation of PeekStream returns an error if the frame you
  60      * pass it is not a keyframe, so we only expect AOM_CODEC_OK on the first
  61      * frame, which must be a keyframe. */
  62     if (video->frame_number() == 0) {
  63       ASSERT_EQ(AOM_CODEC_OK, res_peek)
  64           << "Peek return failed: " << aom_codec_err_to_string(res_peek);
  65     }
  66   } else {
  67     /* The Av1 implementation of PeekStream returns an error only if the
  68      * data passed to it isn't a valid Av1 chunk. */
  69     ASSERT_EQ(AOM_CODEC_OK, res_peek)
  70         << "Peek return failed: " << aom_codec_err_to_string(res_peek);
  71   }
  72 }
  73
  74 void DecoderTest::RunLoop(CompressedVideoSource *video,
  75                           const aom_codec_dec_cfg_t &dec_cfg) {
  76   Decoder *const decoder = codec_->CreateDecoder(dec_cfg, flags_);
  77   ASSERT_TRUE(decoder != NULL);
  78   bool end_of_file = false;
  79
  80   // Decode frames.
  81   for (video->Begin(); !::testing::Test::HasFailure() && !end_of_file;
  82        video->Next()) {
  83     PreDecodeFrameHook(*video, decoder);
  84
  85     aom_codec_stream_info_t stream_info;
  86     if (video->cxdata() != NULL) {
  87       const aom_codec_err_t res_peek = decoder->PeekStream(
  88           video->cxdata(), video->frame_size(), &stream_info);
  89       HandlePeekResult(decoder, video, res_peek);
  90       ASSERT_FALSE(::testing::Test::HasFailure());
  91
  92       aom_codec_err_t res_dec =
  93           decoder->DecodeFrame(video->cxdata(), video->frame_size());
  94       if (!HandleDecodeResult(res_dec, decoder)) break;
  95     } else {
  96       // Signal end of the file to the decoder.
  97       const aom_codec_err_t res_dec = decoder->DecodeFrame(NULL, 0);
  98       ASSERT_EQ(AOM_CODEC_OK, res_dec) << decoder->DecodeError();
  99       end_of_file = true;
 100     }
 101
 102     DxDataIterator dec_iter = decoder->GetDxData();
 103     const aom_image_t *img = NULL;
 104
 105     // Get decompressed data
 106     while ((img = dec_iter.Next()))
 107       DecompressedFrameHook(*img, video->frame_number());
 108   }
 109   delete decoder;
 110 }
 111
 112 void DecoderTest::RunLoop(CompressedVideoSource *video) {
 113   aom_codec_dec_cfg_t dec_cfg = aom_codec_dec_cfg_t();
 114   RunLoop(video, dec_cfg);
 115 }
 116
 117 void DecoderTest::set_cfg(const aom_codec_dec_cfg_t &dec_cfg) {
 118   memcpy(&cfg_, &dec_cfg, sizeof(cfg_));
 119 }
 120
 121 void DecoderTest::set_flags(const aom_codec_flags_t flags) { flags_ = flags; }
 122
 123 }  // namespace libaom_test