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 "third_party/googletest/src/include/gtest/gtest.h"
12
13 #include "test/codec_factory.h"
14 #include "test/decode_test_driver.h"
15 #include "test/register_state_check.h"
16 #include "test/video_source.h"
17
18 namespace libvpx_test {
19
20 const char kVP8Name[] = "WebM Project VP8";
21
PeekStream(const uint8_t * cxdata,size_t size,vpx_codec_stream_info_t * stream_info)22 vpx_codec_err_t Decoder::PeekStream(const uint8_t *cxdata, size_t size,
23 vpx_codec_stream_info_t *stream_info) {
24 return vpx_codec_peek_stream_info(CodecInterface(),
25 cxdata, static_cast<unsigned int>(size),
26 stream_info);
27 }
28
DecodeFrame(const uint8_t * cxdata,size_t size)29 vpx_codec_err_t Decoder::DecodeFrame(const uint8_t *cxdata, size_t size) {
30 return DecodeFrame(cxdata, size, NULL);
31 }
32
DecodeFrame(const uint8_t * cxdata,size_t size,void * user_priv)33 vpx_codec_err_t Decoder::DecodeFrame(const uint8_t *cxdata, size_t size,
34 void *user_priv) {
35 vpx_codec_err_t res_dec;
36 InitOnce();
37 API_REGISTER_STATE_CHECK(
38 res_dec = vpx_codec_decode(&decoder_,
39 cxdata, static_cast<unsigned int>(size),
40 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
HandlePeekResult(Decoder * const decoder,CompressedVideoSource * video,const vpx_codec_err_t res_peek)49 void DecoderTest::HandlePeekResult(Decoder *const decoder,
50 CompressedVideoSource *video,
51 const vpx_codec_err_t res_peek) {
52 const bool is_vp8 = decoder->IsVP8();
53 if (is_vp8) {
54 /* Vp8's implementation of PeekStream returns an error if the frame you
55 * pass it is not a keyframe, so we only expect VPX_CODEC_OK on the first
56 * frame, which must be a keyframe. */
57 if (video->frame_number() == 0)
58 ASSERT_EQ(VPX_CODEC_OK, res_peek) << "Peek return failed: "
59 << vpx_codec_err_to_string(res_peek);
60 } else {
61 /* The Vp9 implementation of PeekStream returns an error only if the
62 * data passed to it isn't a valid Vp9 chunk. */
63 ASSERT_EQ(VPX_CODEC_OK, res_peek) << "Peek return failed: "
64 << vpx_codec_err_to_string(res_peek);
65 }
66 }
67
RunLoop(CompressedVideoSource * video,const vpx_codec_dec_cfg_t & dec_cfg)68 void DecoderTest::RunLoop(CompressedVideoSource *video,
69 const vpx_codec_dec_cfg_t &dec_cfg) {
70 Decoder* const decoder = codec_->CreateDecoder(dec_cfg, flags_, 0);
71 ASSERT_TRUE(decoder != NULL);
72 bool end_of_file = false;
73
74 // Decode frames.
75 for (video->Begin(); !::testing::Test::HasFailure() && !end_of_file;
76 video->Next()) {
77 PreDecodeFrameHook(*video, decoder);
78
79 vpx_codec_stream_info_t stream_info;
80 stream_info.sz = sizeof(stream_info);
81
82 if (video->cxdata() != NULL) {
83 const vpx_codec_err_t res_peek = decoder->PeekStream(video->cxdata(),
84 video->frame_size(),
85 &stream_info);
86 HandlePeekResult(decoder, video, res_peek);
87 ASSERT_FALSE(::testing::Test::HasFailure());
88
89 vpx_codec_err_t res_dec = decoder->DecodeFrame(video->cxdata(),
90 video->frame_size());
91 if (!HandleDecodeResult(res_dec, *video, decoder))
92 break;
93 } else {
94 // Signal end of the file to the decoder.
95 const vpx_codec_err_t res_dec = decoder->DecodeFrame(NULL, 0);
96 ASSERT_EQ(VPX_CODEC_OK, res_dec) << decoder->DecodeError();
97 end_of_file = true;
98 }
99
100 DxDataIterator dec_iter = decoder->GetDxData();
101 const vpx_image_t *img = NULL;
102
103 // Get decompressed data
104 while ((img = dec_iter.Next()))
105 DecompressedFrameHook(*img, video->frame_number());
106 }
107 delete decoder;
108 }
109
RunLoop(CompressedVideoSource * video)110 void DecoderTest::RunLoop(CompressedVideoSource *video) {
111 vpx_codec_dec_cfg_t dec_cfg = vpx_codec_dec_cfg_t();
112 RunLoop(video, dec_cfg);
113 }
114
set_cfg(const vpx_codec_dec_cfg_t & dec_cfg)115 void DecoderTest::set_cfg(const vpx_codec_dec_cfg_t &dec_cfg) {
116 memcpy(&cfg_, &dec_cfg, sizeof(cfg_));
117 }
118
set_flags(const vpx_codec_flags_t flags)119 void DecoderTest::set_flags(const vpx_codec_flags_t flags) {
120 flags_ = flags;
121 }
122
123 } // namespace libvpx_test
124