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
PeekStream(const uint8_t * cxdata,size_t size,aom_codec_stream_info_t * stream_info)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
DecodeFrame(const uint8_t * cxdata,size_t size)30 aom_codec_err_t Decoder::DecodeFrame(const uint8_t *cxdata, size_t size) {
31 return DecodeFrame(cxdata, size, NULL);
32 }
33
DecodeFrame(const uint8_t * cxdata,size_t size,void * user_priv)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
IsVP8() const44 bool Decoder::IsVP8() const {
45 const char *codec_name = GetDecoderName();
46 return strncmp(kVP8Name, codec_name, sizeof(kVP8Name) - 1) == 0;
47 }
48
IsAV1() const49 bool Decoder::IsAV1() const {
50 const char *codec_name = GetDecoderName();
51 return strncmp(kAV1Name, codec_name, sizeof(kAV1Name) - 1) == 0;
52 }
53
HandlePeekResult(Decoder * const decoder,CompressedVideoSource * video,const aom_codec_err_t res_peek)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
RunLoop(CompressedVideoSource * video,const aom_codec_dec_cfg_t & dec_cfg)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
RunLoop(CompressedVideoSource * video)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
set_cfg(const aom_codec_dec_cfg_t & dec_cfg)117 void DecoderTest::set_cfg(const aom_codec_dec_cfg_t &dec_cfg) {
118 memcpy(&cfg_, &dec_cfg, sizeof(cfg_));
119 }
120
set_flags(const aom_codec_flags_t flags)121 void DecoderTest::set_flags(const aom_codec_flags_t flags) { flags_ = flags; }
122
123 } // namespace libaom_test
124