Dynamic error tracking in RTCVideoDecoder

content/renderer/media/rtc_video_decoder_unittest.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <stdint.h>
 #include <string.h>
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/single_thread_task_runner.h"
@@ skipping 254 matching lines @@
 
   EXPECT_FALSE(rtc_decoder_->IsFirstBufferAfterReset(RTCVideoDecoder::ID_LAST,
                                                      RTCVideoDecoder::ID_LAST));
   EXPECT_TRUE(
       rtc_decoder_->IsFirstBufferAfterReset(0, RTCVideoDecoder::ID_LAST));
   EXPECT_FALSE(
       rtc_decoder_->IsFirstBufferAfterReset(1, RTCVideoDecoder::ID_LAST));
 }
 
 
-TEST_P(RTCVideoDecoderTest, DecodeResetsAfterError) {
+TEST_P(RTCVideoDecoderTest, GetVDAErrorCounterForTesting) {
   const webrtc::VideoCodecType codec_type = GetParam();
   CreateDecoder(codec_type);
   Initialize();
 
   webrtc::EncodedImage input_image;
   input_image._completeFrame = true;
   input_image._encodedWidth = kMinResolutionWidth;
   input_image._encodedHeight = kMaxResolutionHeight;
   input_image._frameType = webrtc::kVideoFrameDelta;
   EXPECT_EQ(WEBRTC_VIDEO_CODEC_ERROR,
             rtc_decoder_->Decode(input_image, false, nullptr, nullptr, 0));
   RunUntilIdle();
 
   // Notify the decoder about a platform error.
   NotifyError(media::VideoDecodeAccelerator::PLATFORM_FAILURE);
   RunUntilIdle();
+  EXPECT_EQ(1, rtc_decoder_->GetVDAErrorCounterForTesting());
 
   // Expect decode call to reset decoder, and set up a new VDA to track it.
   SetUpResetVDA();
   EXPECT_EQ(WEBRTC_VIDEO_CODEC_ERROR,
             rtc_decoder_->Decode(input_image, false, nullptr, nullptr, 0));
+  EXPECT_EQ(1, rtc_decoder_->GetVDAErrorCounterForTesting());
+
+  // Decoder expects a keyframe after reset, so drops any other frames.
+  EXPECT_EQ(WEBRTC_VIDEO_CODEC_ERROR,
+            rtc_decoder_->Decode(input_image, false, nullptr, nullptr, 0));
+  EXPECT_EQ(1, rtc_decoder_->GetVDAErrorCounterForTesting());
+
+  // Decoder resets error counter after a successfull decode.
+  input_image._frameType = webrtc::kVideoFrameKey;
+  EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
+            rtc_decoder_->Decode(input_image, false, nullptr, nullptr, 10));
+  EXPECT_EQ(0, rtc_decoder_->GetVDAErrorCounterForTesting());
 }
 
 INSTANTIATE_TEST_CASE_P(CodecProfiles,
                         RTCVideoDecoderTest,
                         Values(webrtc::kVideoCodecVP8,
                                webrtc::kVideoCodecH264));
 
 }  // content