third_party/aom/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 kAV1Name[] = "AOMedia Project AV1 Decoder";
  22
  23 aom_codec_err_t Decoder::PeekStream(const uint8_t *cxdata, size_t size,
  24                                     aom_codec_stream_info_t *stream_info) {
  25   return aom_codec_peek_stream_info(CodecInterface(), cxdata, size,
  26                                     stream_info);
  27 }
  28
  29 aom_codec_err_t Decoder::DecodeFrame(const uint8_t *cxdata, size_t size) {
  30   return DecodeFrame(cxdata, size, NULL);
  31 }
  32
  33 aom_codec_err_t Decoder::DecodeFrame(const uint8_t *cxdata, size_t size,
  34                                      void *user_priv) {
  35   aom_codec_err_t res_dec;
  36   InitOnce();
  37   API_REGISTER_STATE_CHECK(
  38       res_dec = aom_codec_decode(&decoder_, cxdata, size, user_priv));
  39   return res_dec;
  40 }
  41
  42 bool Decoder::IsAV1() const {
  43   const char *codec_name = GetDecoderName();
  44   return strncmp(kAV1Name, codec_name, sizeof(kAV1Name) - 1) == 0;
  45 }
  46
  47 void DecoderTest::HandlePeekResult(Decoder *const /*decoder*/,
  48                                    CompressedVideoSource * /*video*/,
  49                                    const aom_codec_err_t res_peek) {
  50   /* The Av1 implementation of PeekStream returns an error only if the
  51    * data passed to it isn't a valid Av1 chunk. */
  52   ASSERT_EQ(AOM_CODEC_OK, res_peek)
  53       << "Peek return failed: " << aom_codec_err_to_string(res_peek);
  54 }
  55
  56 void DecoderTest::RunLoop(CompressedVideoSource *video,
  57                           const aom_codec_dec_cfg_t &dec_cfg) {
  58   Decoder *const decoder = codec_->CreateDecoder(dec_cfg, flags_);
  59   ASSERT_TRUE(decoder != NULL);
  60   bool end_of_file = false;
  61   bool peeked_stream = false;
  62
  63   // Decode frames.
  64   for (video->Begin(); !::testing::Test::HasFailure() && !end_of_file;
  65        video->Next()) {
  66     PreDecodeFrameHook(*video, decoder);
  67
  68     aom_codec_stream_info_t stream_info;
  69     stream_info.is_annexb = 0;
  70
  71     if (video->cxdata() != NULL) {
  72       if (!peeked_stream) {
  73         // TODO(yaowu): PeekStream returns error for non-sequence_header_obu,
  74         // therefore should only be tried once per sequence, this shall be fixed
  75         // once PeekStream is updated to properly operate on other obus.
  76         const aom_codec_err_t res_peek = decoder->PeekStream(
  77             video->cxdata(), video->frame_size(), &stream_info);
  78         HandlePeekResult(decoder, video, res_peek);
  79         ASSERT_FALSE(::testing::Test::HasFailure());
  80         peeked_stream = true;
  81       }
  82
  83       aom_codec_err_t res_dec =
  84           decoder->DecodeFrame(video->cxdata(), video->frame_size());
  85       if (!HandleDecodeResult(res_dec, *video, decoder)) break;
  86     } else {
  87       // Signal end of the file to the decoder.
  88       const aom_codec_err_t res_dec = decoder->DecodeFrame(NULL, 0);
  89       ASSERT_EQ(AOM_CODEC_OK, res_dec) << decoder->DecodeError();
  90       end_of_file = true;
  91     }
  92
  93     DxDataIterator dec_iter = decoder->GetDxData();
  94     const aom_image_t *img = NULL;
  95
  96     // Get decompressed data
  97     while (!::testing::Test::HasFailure() && (img = dec_iter.Next()))
  98       DecompressedFrameHook(*img, video->frame_number());
  99   }
 100   delete decoder;
 101 }
 102
 103 void DecoderTest::RunLoop(CompressedVideoSource *video) {
 104   aom_codec_dec_cfg_t dec_cfg = aom_codec_dec_cfg_t();
 105   RunLoop(video, dec_cfg);
 106 }
 107
 108 void DecoderTest::set_cfg(const aom_codec_dec_cfg_t &dec_cfg) {
 109   memcpy(&cfg_, &dec_cfg, sizeof(cfg_));
 110 }
 111
 112 void DecoderTest::set_flags(const aom_codec_flags_t flags) { flags_ = flags; }
 113
 114 }  // namespace libaom_test