Peter Boström | 4d71ede | 2015-05-19 23:09:35 +0200 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (c) 2015 The WebRTC 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 "webrtc/video_encoder.h" |
| 12 | |
| 13 | #include "testing/gtest/include/gtest/gtest.h" |
| 14 | #include "webrtc/modules/video_coding/codecs/interface/video_error_codes.h" |
| 15 | |
| 16 | namespace webrtc { |
| 17 | |
| 18 | const size_t kMaxPayloadSize = 800; |
| 19 | |
| 20 | class VideoEncoderSoftwareFallbackWrapperTest : public ::testing::Test { |
| 21 | protected: |
| 22 | VideoEncoderSoftwareFallbackWrapperTest() |
| 23 | : fallback_wrapper_(kVideoCodecVP8, &fake_encoder_) {} |
| 24 | |
| 25 | class CountingFakeEncoder : public VideoEncoder { |
| 26 | public: |
| 27 | int32_t InitEncode(const VideoCodec* codec_settings, |
| 28 | int32_t number_of_cores, |
| 29 | size_t max_payload_size) override { |
| 30 | ++init_encode_count_; |
| 31 | return init_encode_return_code_; |
| 32 | } |
| 33 | int32_t Encode(const I420VideoFrame& frame, |
| 34 | const CodecSpecificInfo* codec_specific_info, |
| 35 | const std::vector<VideoFrameType>* frame_types) override { |
| 36 | ++encode_count_; |
| 37 | return WEBRTC_VIDEO_CODEC_OK; |
| 38 | } |
| 39 | |
| 40 | int32_t RegisterEncodeCompleteCallback( |
| 41 | EncodedImageCallback* callback) override { |
| 42 | encode_complete_callback_ = callback; |
| 43 | return WEBRTC_VIDEO_CODEC_OK; |
| 44 | } |
| 45 | |
| 46 | int32_t Release() override { |
| 47 | ++release_count_; |
| 48 | return WEBRTC_VIDEO_CODEC_OK; |
| 49 | } |
| 50 | |
| 51 | int32_t SetChannelParameters(uint32_t packet_loss, int64_t rtt) override { |
| 52 | ++set_channel_parameters_count_; |
| 53 | return WEBRTC_VIDEO_CODEC_OK; |
| 54 | } |
| 55 | |
| 56 | int32_t SetRates(uint32_t bitrate, uint32_t framerate) override { |
| 57 | ++set_rates_count_; |
| 58 | return WEBRTC_VIDEO_CODEC_OK; |
| 59 | } |
| 60 | |
| 61 | void OnDroppedFrame() override { ++on_dropped_frame_count_; } |
| 62 | |
| 63 | int init_encode_count_ = 0; |
| 64 | int32_t init_encode_return_code_ = WEBRTC_VIDEO_CODEC_OK; |
| 65 | int encode_count_ = 0; |
| 66 | EncodedImageCallback* encode_complete_callback_ = nullptr; |
| 67 | int release_count_ = 0; |
| 68 | int set_channel_parameters_count_ = 0; |
| 69 | int set_rates_count_ = 0; |
| 70 | int on_dropped_frame_count_ = 0; |
| 71 | }; |
| 72 | |
| 73 | class FakeEncodedImageCallback : public EncodedImageCallback { |
| 74 | public: |
| 75 | int32_t Encoded(const EncodedImage& encoded_image, |
| 76 | const CodecSpecificInfo* codec_specific_info, |
| 77 | const RTPFragmentationHeader* fragmentation) override { |
| 78 | return ++callback_count_; |
| 79 | } |
| 80 | int callback_count_ = 0; |
| 81 | }; |
| 82 | |
| 83 | void UtilizeFallbackEncoder(); |
| 84 | |
| 85 | FakeEncodedImageCallback callback_; |
| 86 | CountingFakeEncoder fake_encoder_; |
| 87 | VideoEncoderSoftwareFallbackWrapper fallback_wrapper_; |
| 88 | VideoCodec codec_ = {}; |
| 89 | I420VideoFrame frame_; |
| 90 | }; |
| 91 | |
| 92 | void VideoEncoderSoftwareFallbackWrapperTest::UtilizeFallbackEncoder() { |
| 93 | static const int kWidth = 320; |
| 94 | static const int kHeight = 240; |
| 95 | fallback_wrapper_.RegisterEncodeCompleteCallback(&callback_); |
| 96 | EXPECT_EQ(&callback_, fake_encoder_.encode_complete_callback_); |
| 97 | |
| 98 | // Register with failing fake encoder. Should succeed with VP8 fallback. |
| 99 | codec_.codecType = kVideoCodecVP8; |
| 100 | codec_.maxFramerate = 30; |
| 101 | codec_.width = kWidth; |
| 102 | codec_.height = kHeight; |
| 103 | fake_encoder_.init_encode_return_code_ = WEBRTC_VIDEO_CODEC_ERROR; |
| 104 | EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK, |
| 105 | fallback_wrapper_.InitEncode(&codec_, 2, kMaxPayloadSize)); |
| 106 | EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK, fallback_wrapper_.SetRates(300, 30)); |
| 107 | |
| 108 | frame_.CreateEmptyFrame(kWidth, kHeight, kWidth, (kWidth + 1) / 2, |
| 109 | (kWidth + 1) / 2); |
| 110 | memset(frame_.buffer(webrtc::kYPlane), 16, |
| 111 | frame_.allocated_size(webrtc::kYPlane)); |
| 112 | memset(frame_.buffer(webrtc::kUPlane), 128, |
| 113 | frame_.allocated_size(webrtc::kUPlane)); |
| 114 | memset(frame_.buffer(webrtc::kVPlane), 128, |
| 115 | frame_.allocated_size(webrtc::kVPlane)); |
| 116 | |
| 117 | std::vector<VideoFrameType> types(1, kKeyFrame); |
| 118 | EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK, |
| 119 | fallback_wrapper_.Encode(frame_, nullptr, &types)); |
| 120 | EXPECT_EQ(0, fake_encoder_.encode_count_); |
| 121 | EXPECT_GT(callback_.callback_count_, 0); |
| 122 | } |
| 123 | |
| 124 | TEST_F(VideoEncoderSoftwareFallbackWrapperTest, InitializesEncoder) { |
| 125 | VideoCodec codec = {}; |
| 126 | fallback_wrapper_.InitEncode(&codec, 2, kMaxPayloadSize); |
| 127 | EXPECT_EQ(1, fake_encoder_.init_encode_count_); |
| 128 | } |
| 129 | |
| 130 | TEST_F(VideoEncoderSoftwareFallbackWrapperTest, CanUtilizeFallbackEncoder) { |
| 131 | UtilizeFallbackEncoder(); |
| 132 | EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK, fallback_wrapper_.Release()); |
| 133 | } |
| 134 | |
| 135 | TEST_F(VideoEncoderSoftwareFallbackWrapperTest, |
| 136 | InternalEncoderNotReleasedDuringFallback) { |
| 137 | UtilizeFallbackEncoder(); |
| 138 | EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK, fallback_wrapper_.Release()); |
| 139 | EXPECT_EQ(0, fake_encoder_.release_count_); |
| 140 | } |
| 141 | |
| 142 | TEST_F(VideoEncoderSoftwareFallbackWrapperTest, |
| 143 | InternalEncoderNotEncodingDuringFallback) { |
| 144 | UtilizeFallbackEncoder(); |
| 145 | EXPECT_EQ(0, fake_encoder_.encode_count_); |
| 146 | |
| 147 | EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK, fallback_wrapper_.Release()); |
| 148 | } |
| 149 | |
| 150 | TEST_F(VideoEncoderSoftwareFallbackWrapperTest, |
| 151 | CanRegisterCallbackWhileUsingFallbackEncoder) { |
| 152 | UtilizeFallbackEncoder(); |
| 153 | // Registering an encode-complete callback should still work when fallback |
| 154 | // encoder is being used. |
| 155 | FakeEncodedImageCallback callback2; |
| 156 | fallback_wrapper_.RegisterEncodeCompleteCallback(&callback2); |
| 157 | EXPECT_EQ(&callback2, fake_encoder_.encode_complete_callback_); |
| 158 | |
| 159 | // Encoding a frame using the fallback should arrive at the new callback. |
| 160 | std::vector<VideoFrameType> types(1, kKeyFrame); |
| 161 | frame_.set_timestamp(frame_.timestamp() + 1000); |
| 162 | EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK, |
| 163 | fallback_wrapper_.Encode(frame_, nullptr, &types)); |
| 164 | |
| 165 | EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK, fallback_wrapper_.Release()); |
| 166 | } |
| 167 | |
| 168 | TEST_F(VideoEncoderSoftwareFallbackWrapperTest, |
| 169 | SetChannelParametersForwardedDuringFallback) { |
| 170 | UtilizeFallbackEncoder(); |
| 171 | EXPECT_EQ(0, fake_encoder_.set_channel_parameters_count_); |
| 172 | fallback_wrapper_.SetChannelParameters(1, 1); |
| 173 | EXPECT_EQ(1, fake_encoder_.set_channel_parameters_count_); |
| 174 | EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK, fallback_wrapper_.Release()); |
| 175 | } |
| 176 | |
| 177 | TEST_F(VideoEncoderSoftwareFallbackWrapperTest, |
| 178 | SetRatesForwardedDuringFallback) { |
| 179 | UtilizeFallbackEncoder(); |
| 180 | EXPECT_EQ(1, fake_encoder_.set_rates_count_); |
| 181 | fallback_wrapper_.SetRates(1, 1); |
| 182 | EXPECT_EQ(2, fake_encoder_.set_rates_count_); |
| 183 | EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK, fallback_wrapper_.Release()); |
| 184 | } |
| 185 | |
| 186 | TEST_F(VideoEncoderSoftwareFallbackWrapperTest, |
| 187 | OnDroppedFrameForwardedWithoutFallback) { |
| 188 | fallback_wrapper_.OnDroppedFrame(); |
| 189 | EXPECT_EQ(1, fake_encoder_.on_dropped_frame_count_); |
| 190 | } |
| 191 | |
| 192 | TEST_F(VideoEncoderSoftwareFallbackWrapperTest, |
| 193 | OnDroppedFrameNotForwardedDuringFallback) { |
| 194 | UtilizeFallbackEncoder(); |
| 195 | fallback_wrapper_.OnDroppedFrame(); |
| 196 | EXPECT_EQ(0, fake_encoder_.on_dropped_frame_count_); |
| 197 | EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK, fallback_wrapper_.Release()); |
| 198 | } |
| 199 | |
| 200 | } // namespace webrtc |