modules/video_coding refactorings

webrtc/modules/video_coding/main/source/decoding_state_unittest.cc

Index: webrtc/modules/video_coding/main/source/decoding_state_unittest.cc
diff --git a/webrtc/modules/video_coding/main/source/decoding_state_unittest.cc b/webrtc/modules/video_coding/main/source/decoding_state_unittest.cc
deleted file mode 100644
index 9dfb3133aa83e938a6b7d87ba4011170ee202ca9..0000000000000000000000000000000000000000
--- a/webrtc/modules/video_coding/main/source/decoding_state_unittest.cc
+++ /dev/null
@@ -1,699 +0,0 @@
-/*
- *  Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
- *
- *  Use of this source code is governed by a BSD-style license
- *  that can be found in the LICENSE file in the root of the source
- *  tree. An additional intellectual property rights grant can be found
- *  in the file PATENTS.  All contributing project authors may
- *  be found in the AUTHORS file in the root of the source tree.
- */
-
-#include <string.h>
-
-#include "testing/gtest/include/gtest/gtest.h"
-#include "webrtc/modules/include/module_common_types.h"
-#include "webrtc/modules/video_coding/main/source/decoding_state.h"
-#include "webrtc/modules/video_coding/main/source/frame_buffer.h"
-#include "webrtc/modules/video_coding/main/source/jitter_buffer_common.h"
-#include "webrtc/modules/video_coding/main/source/packet.h"
-
-namespace webrtc {
-
-TEST(TestDecodingState, Sanity) {
-  VCMDecodingState dec_state;
-  dec_state.Reset();
-  EXPECT_TRUE(dec_state.in_initial_state());
-  EXPECT_TRUE(dec_state.full_sync());
-}
-
-TEST(TestDecodingState, FrameContinuity) {
-  VCMDecodingState dec_state;
-  // Check that makes decision based on correct method.
-  VCMFrameBuffer frame;
-  VCMFrameBuffer frame_key;
-  VCMPacket packet;
-  packet.isFirstPacket = true;
-  packet.timestamp = 1;
-  packet.seqNum = 0xffff;
-  packet.frameType = kVideoFrameDelta;
-  packet.codecSpecificHeader.codec = kRtpVideoVp8;
-  packet.codecSpecificHeader.codecHeader.VP8.pictureId = 0x007F;
-  FrameData frame_data;
-  frame_data.rtt_ms = 0;
-  frame_data.rolling_average_packets_per_frame = -1;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  // Always start with a key frame.
-  dec_state.Reset();
-  EXPECT_FALSE(dec_state.ContinuousFrame(&frame));
-  packet.frameType = kVideoFrameKey;
-  EXPECT_LE(0, frame_key.InsertPacket(packet, 0, kNoErrors, frame_data));
-  EXPECT_TRUE(dec_state.ContinuousFrame(&frame_key));
-  dec_state.SetState(&frame);
-  frame.Reset();
-  packet.frameType = kVideoFrameDelta;
-  // Use pictureId
-  packet.isFirstPacket = false;
-  packet.codecSpecificHeader.codecHeader.VP8.pictureId = 0x0002;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  EXPECT_FALSE(dec_state.ContinuousFrame(&frame));
-  frame.Reset();
-  packet.codecSpecificHeader.codecHeader.VP8.pictureId = 0;
-  packet.seqNum = 10;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  EXPECT_TRUE(dec_state.ContinuousFrame(&frame));
-
-  // Use sequence numbers.
-  packet.codecSpecificHeader.codecHeader.VP8.pictureId = kNoPictureId;
-  frame.Reset();
-  packet.seqNum = dec_state.sequence_num() - 1u;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  EXPECT_FALSE(dec_state.ContinuousFrame(&frame));
-  frame.Reset();
-  packet.seqNum = dec_state.sequence_num() + 1u;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  // Insert another packet to this frame
-  packet.seqNum++;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  // Verify wrap.
-  EXPECT_LE(dec_state.sequence_num(), 0xffff);
-  EXPECT_TRUE(dec_state.ContinuousFrame(&frame));
-  dec_state.SetState(&frame);
-
-  // Insert packet with temporal info.
-  dec_state.Reset();
-  frame.Reset();
-  packet.codecSpecificHeader.codecHeader.VP8.tl0PicIdx = 0;
-  packet.codecSpecificHeader.codecHeader.VP8.temporalIdx = 0;
-  packet.codecSpecificHeader.codecHeader.VP8.pictureId = 0;
-  packet.seqNum = 1;
-  packet.timestamp = 1;
-  EXPECT_TRUE(dec_state.full_sync());
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  dec_state.SetState(&frame);
-  EXPECT_TRUE(dec_state.full_sync());
-  frame.Reset();
-  // 1 layer up - still good.
-  packet.codecSpecificHeader.codecHeader.VP8.tl0PicIdx = 0;
-  packet.codecSpecificHeader.codecHeader.VP8.temporalIdx = 1;
-  packet.codecSpecificHeader.codecHeader.VP8.pictureId = 1;
-  packet.seqNum = 2;
-  packet.timestamp = 2;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  EXPECT_TRUE(dec_state.ContinuousFrame(&frame));
-  dec_state.SetState(&frame);
-  EXPECT_TRUE(dec_state.full_sync());
-  frame.Reset();
-  // Lost non-base layer packet => should update sync parameter.
-  packet.codecSpecificHeader.codecHeader.VP8.tl0PicIdx = 0;
-  packet.codecSpecificHeader.codecHeader.VP8.temporalIdx = 3;
-  packet.codecSpecificHeader.codecHeader.VP8.pictureId = 3;
-  packet.seqNum = 4;
-  packet.timestamp = 4;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  EXPECT_FALSE(dec_state.ContinuousFrame(&frame));
-  // Now insert the next non-base layer (belonging to a next tl0PicId).
-  frame.Reset();
-  packet.codecSpecificHeader.codecHeader.VP8.tl0PicIdx = 1;
-  packet.codecSpecificHeader.codecHeader.VP8.temporalIdx = 2;
-  packet.codecSpecificHeader.codecHeader.VP8.pictureId = 4;
-  packet.seqNum = 5;
-  packet.timestamp = 5;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  // Checking continuity and not updating the state - this should not trigger
-  // an update of sync state.
-  EXPECT_FALSE(dec_state.ContinuousFrame(&frame));
-  EXPECT_TRUE(dec_state.full_sync());
-  // Next base layer (dropped interim non-base layers) - should update sync.
-  frame.Reset();
-  packet.codecSpecificHeader.codecHeader.VP8.tl0PicIdx = 1;
-  packet.codecSpecificHeader.codecHeader.VP8.temporalIdx = 0;
-  packet.codecSpecificHeader.codecHeader.VP8.pictureId = 5;
-  packet.seqNum = 6;
-  packet.timestamp = 6;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  EXPECT_TRUE(dec_state.ContinuousFrame(&frame));
-  dec_state.SetState(&frame);
-  EXPECT_FALSE(dec_state.full_sync());
-
-  // Check wrap for temporal layers.
-  frame.Reset();
-  packet.codecSpecificHeader.codecHeader.VP8.tl0PicIdx = 0x00FF;
-  packet.codecSpecificHeader.codecHeader.VP8.temporalIdx = 0;
-  packet.codecSpecificHeader.codecHeader.VP8.pictureId = 6;
-  packet.seqNum = 7;
-  packet.timestamp = 7;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  dec_state.SetState(&frame);
-  EXPECT_FALSE(dec_state.full_sync());
-  frame.Reset();
-  packet.codecSpecificHeader.codecHeader.VP8.tl0PicIdx = 0x0000;
-  packet.codecSpecificHeader.codecHeader.VP8.temporalIdx = 0;
-  packet.codecSpecificHeader.codecHeader.VP8.pictureId = 7;
-  packet.seqNum = 8;
-  packet.timestamp = 8;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  EXPECT_TRUE(dec_state.ContinuousFrame(&frame));
-  // The current frame is not continuous
-  dec_state.SetState(&frame);
-  EXPECT_FALSE(dec_state.ContinuousFrame(&frame));
-}
-
-TEST(TestDecodingState, UpdateOldPacket) {
-  VCMDecodingState dec_state;
-  // Update only if zero size and newer than previous.
-  // Should only update if the timeStamp match.
-  VCMFrameBuffer frame;
-  VCMPacket packet;
-  packet.timestamp = 1;
-  packet.seqNum = 1;
-  packet.frameType = kVideoFrameDelta;
-  FrameData frame_data;
-  frame_data.rtt_ms = 0;
-  frame_data.rolling_average_packets_per_frame = -1;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  dec_state.SetState(&frame);
-  EXPECT_EQ(dec_state.sequence_num(), 1);
-  // Insert an empty packet that does not belong to the same frame.
-  // => Sequence num should be the same.
-  packet.timestamp = 2;
-  dec_state.UpdateOldPacket(&packet);
-  EXPECT_EQ(dec_state.sequence_num(), 1);
-  // Now insert empty packet belonging to the same frame.
-  packet.timestamp = 1;
-  packet.seqNum = 2;
-  packet.frameType = kEmptyFrame;
-  packet.sizeBytes = 0;
-  dec_state.UpdateOldPacket(&packet);
-  EXPECT_EQ(dec_state.sequence_num(), 2);
-  // Now insert delta packet belonging to the same frame.
-  packet.timestamp = 1;
-  packet.seqNum = 3;
-  packet.frameType = kVideoFrameDelta;
-  packet.sizeBytes = 1400;
-  dec_state.UpdateOldPacket(&packet);
-  EXPECT_EQ(dec_state.sequence_num(), 3);
-  // Insert a packet belonging to an older timestamp - should not update the
-  // sequence number.
-  packet.timestamp = 0;
-  packet.seqNum = 4;
-  packet.frameType = kEmptyFrame;
-  packet.sizeBytes = 0;
-  dec_state.UpdateOldPacket(&packet);
-  EXPECT_EQ(dec_state.sequence_num(), 3);
-}
-
-TEST(TestDecodingState, MultiLayerBehavior) {
-  // Identify sync/non-sync when more than one layer.
-  VCMDecodingState dec_state;
-  // Identify packets belonging to old frames/packets.
-  // Set state for current frames.
-  // tl0PicIdx 0, temporal id 0.
-  VCMFrameBuffer frame;
-  VCMPacket packet;
-  packet.frameType = kVideoFrameDelta;
-  packet.codecSpecificHeader.codec = kRtpVideoVp8;
-  packet.timestamp = 0;
-  packet.seqNum = 0;
-  packet.codecSpecificHeader.codecHeader.VP8.tl0PicIdx = 0;
-  packet.codecSpecificHeader.codecHeader.VP8.temporalIdx = 0;
-  packet.codecSpecificHeader.codecHeader.VP8.pictureId = 0;
-  FrameData frame_data;
-  frame_data.rtt_ms = 0;
-  frame_data.rolling_average_packets_per_frame = -1;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  dec_state.SetState(&frame);
-  // tl0PicIdx 0, temporal id 1.
-  frame.Reset();
-  packet.timestamp = 1;
-  packet.seqNum = 1;
-  packet.codecSpecificHeader.codecHeader.VP8.tl0PicIdx = 0;
-  packet.codecSpecificHeader.codecHeader.VP8.temporalIdx = 1;
-  packet.codecSpecificHeader.codecHeader.VP8.pictureId = 1;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  EXPECT_TRUE(dec_state.ContinuousFrame(&frame));
-  dec_state.SetState(&frame);
-  EXPECT_TRUE(dec_state.full_sync());
-  // Lost tl0PicIdx 0, temporal id 2.
-  // Insert tl0PicIdx 0, temporal id 3.
-  frame.Reset();
-  packet.timestamp = 3;
-  packet.seqNum = 3;
-  packet.codecSpecificHeader.codecHeader.VP8.tl0PicIdx = 0;
-  packet.codecSpecificHeader.codecHeader.VP8.temporalIdx = 3;
-  packet.codecSpecificHeader.codecHeader.VP8.pictureId = 3;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  EXPECT_FALSE(dec_state.ContinuousFrame(&frame));
-  dec_state.SetState(&frame);
-  EXPECT_FALSE(dec_state.full_sync());
-  // Insert next base layer
-  frame.Reset();
-  packet.timestamp = 4;
-  packet.seqNum = 4;
-  packet.codecSpecificHeader.codecHeader.VP8.tl0PicIdx = 1;
-  packet.codecSpecificHeader.codecHeader.VP8.temporalIdx = 0;
-  packet.codecSpecificHeader.codecHeader.VP8.pictureId = 4;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  EXPECT_TRUE(dec_state.ContinuousFrame(&frame));
-  dec_state.SetState(&frame);
-  EXPECT_FALSE(dec_state.full_sync());
-  // Insert key frame - should update sync value.
-  // A key frame is always a base layer.
-  frame.Reset();
-  packet.frameType = kVideoFrameKey;
-  packet.isFirstPacket = 1;
-  packet.timestamp = 5;
-  packet.seqNum = 5;
-  packet.codecSpecificHeader.codecHeader.VP8.tl0PicIdx = 2;
-  packet.codecSpecificHeader.codecHeader.VP8.temporalIdx = 0;
-  packet.codecSpecificHeader.codecHeader.VP8.pictureId = 5;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  EXPECT_TRUE(dec_state.ContinuousFrame(&frame));
-  dec_state.SetState(&frame);
-  EXPECT_TRUE(dec_state.full_sync());
-  // After sync, a continuous PictureId is required
-  // (continuous base layer is not enough )
-  frame.Reset();
-  packet.frameType = kVideoFrameDelta;
-  packet.timestamp = 6;
-  packet.seqNum = 6;
-  packet.codecSpecificHeader.codecHeader.VP8.tl0PicIdx = 3;
-  packet.codecSpecificHeader.codecHeader.VP8.temporalIdx = 0;
-  packet.codecSpecificHeader.codecHeader.VP8.pictureId = 6;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  EXPECT_TRUE(dec_state.ContinuousFrame(&frame));
-  EXPECT_TRUE(dec_state.full_sync());
-  frame.Reset();
-  packet.frameType = kVideoFrameDelta;
-  packet.isFirstPacket = 1;
-  packet.timestamp = 8;
-  packet.seqNum = 8;
-  packet.codecSpecificHeader.codecHeader.VP8.tl0PicIdx = 4;
-  packet.codecSpecificHeader.codecHeader.VP8.temporalIdx = 0;
-  packet.codecSpecificHeader.codecHeader.VP8.pictureId = 8;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  EXPECT_FALSE(dec_state.ContinuousFrame(&frame));
-  EXPECT_TRUE(dec_state.full_sync());
-  dec_state.SetState(&frame);
-  EXPECT_FALSE(dec_state.full_sync());
-
-  // Insert a non-ref frame - should update sync value.
-  frame.Reset();
-  packet.frameType = kVideoFrameDelta;
-  packet.isFirstPacket = 1;
-  packet.timestamp = 9;
-  packet.seqNum = 9;
-  packet.codecSpecificHeader.codecHeader.VP8.tl0PicIdx = 4;
-  packet.codecSpecificHeader.codecHeader.VP8.temporalIdx = 2;
-  packet.codecSpecificHeader.codecHeader.VP8.pictureId = 9;
-  packet.codecSpecificHeader.codecHeader.VP8.layerSync = true;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  dec_state.SetState(&frame);
-  EXPECT_TRUE(dec_state.full_sync());
-
-  // The following test will verify the sync flag behavior after a loss.
-  // Create the following pattern:
-  // Update base layer, lose packet 1 (sync flag on, layer 2), insert packet 3
-  // (sync flag on, layer 2) check continuity and sync flag after inserting
-  // packet 2 (sync flag on, layer 1).
-  // Base layer.
-  frame.Reset();
-  dec_state.Reset();
-  packet.frameType = kVideoFrameDelta;
-  packet.isFirstPacket = 1;
-  packet.markerBit = 1;
-  packet.timestamp = 0;
-  packet.seqNum = 0;
-  packet.codecSpecificHeader.codecHeader.VP8.tl0PicIdx = 0;
-  packet.codecSpecificHeader.codecHeader.VP8.temporalIdx = 0;
-  packet.codecSpecificHeader.codecHeader.VP8.pictureId = 0;
-  packet.codecSpecificHeader.codecHeader.VP8.layerSync = false;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  dec_state.SetState(&frame);
-  EXPECT_TRUE(dec_state.full_sync());
-  // Layer 2 - 2 packets (insert one, lose one).
-  frame.Reset();
-  packet.frameType = kVideoFrameDelta;
-  packet.isFirstPacket = 1;
-  packet.markerBit = 0;
-  packet.timestamp = 1;
-  packet.seqNum = 1;
-  packet.codecSpecificHeader.codecHeader.VP8.tl0PicIdx = 0;
-  packet.codecSpecificHeader.codecHeader.VP8.temporalIdx = 2;
-  packet.codecSpecificHeader.codecHeader.VP8.pictureId = 1;
-  packet.codecSpecificHeader.codecHeader.VP8.layerSync = true;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  EXPECT_TRUE(dec_state.ContinuousFrame(&frame));
-  // Layer 1
-  frame.Reset();
-  packet.frameType = kVideoFrameDelta;
-  packet.isFirstPacket = 1;
-  packet.markerBit = 1;
-  packet.timestamp = 2;
-  packet.seqNum = 3;
-  packet.codecSpecificHeader.codecHeader.VP8.tl0PicIdx = 0;
-  packet.codecSpecificHeader.codecHeader.VP8.temporalIdx = 1;
-  packet.codecSpecificHeader.codecHeader.VP8.pictureId = 2;
-  packet.codecSpecificHeader.codecHeader.VP8.layerSync = true;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  EXPECT_FALSE(dec_state.ContinuousFrame(&frame));
-  EXPECT_TRUE(dec_state.full_sync());
-}
-
-TEST(TestDecodingState, DiscontinuousPicIdContinuousSeqNum) {
-  VCMDecodingState dec_state;
-  VCMFrameBuffer frame;
-  VCMPacket packet;
-  frame.Reset();
-  packet.frameType = kVideoFrameKey;
-  packet.codecSpecificHeader.codec = kRtpVideoVp8;
-  packet.timestamp = 0;
-  packet.seqNum = 0;
-  packet.codecSpecificHeader.codecHeader.VP8.tl0PicIdx = 0;
-  packet.codecSpecificHeader.codecHeader.VP8.temporalIdx = 0;
-  packet.codecSpecificHeader.codecHeader.VP8.pictureId = 0;
-  FrameData frame_data;
-  frame_data.rtt_ms = 0;
-  frame_data.rolling_average_packets_per_frame = -1;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  dec_state.SetState(&frame);
-  EXPECT_TRUE(dec_state.full_sync());
-
-  // Continuous sequence number but discontinuous picture id. This implies a
-  // a loss and we have to fall back to only decoding the base layer.
-  frame.Reset();
-  packet.frameType = kVideoFrameDelta;
-  packet.timestamp += 3000;
-  ++packet.seqNum;
-  packet.codecSpecificHeader.codecHeader.VP8.temporalIdx = 1;
-  packet.codecSpecificHeader.codecHeader.VP8.pictureId = 2;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  EXPECT_FALSE(dec_state.ContinuousFrame(&frame));
-  dec_state.SetState(&frame);
-  EXPECT_FALSE(dec_state.full_sync());
-}
-
-TEST(TestDecodingState, OldInput) {
-  VCMDecodingState dec_state;
-  // Identify packets belonging to old frames/packets.
-  // Set state for current frames.
-  VCMFrameBuffer frame;
-  VCMPacket packet;
-  packet.timestamp = 10;
-  packet.seqNum = 1;
-  FrameData frame_data;
-  frame_data.rtt_ms = 0;
-  frame_data.rolling_average_packets_per_frame = -1;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  dec_state.SetState(&frame);
-  packet.timestamp = 9;
-  EXPECT_TRUE(dec_state.IsOldPacket(&packet));
-  // Check for old frame
-  frame.Reset();
-  frame.InsertPacket(packet, 0, kNoErrors, frame_data);
-  EXPECT_TRUE(dec_state.IsOldFrame(&frame));
-}
-
-TEST(TestDecodingState, PictureIdRepeat) {
-  VCMDecodingState dec_state;
-  VCMFrameBuffer frame;
-  VCMPacket packet;
-  packet.frameType = kVideoFrameDelta;
-  packet.codecSpecificHeader.codec = kRtpVideoVp8;
-  packet.timestamp = 0;
-  packet.seqNum = 0;
-  packet.codecSpecificHeader.codecHeader.VP8.tl0PicIdx = 0;
-  packet.codecSpecificHeader.codecHeader.VP8.temporalIdx = 0;
-  packet.codecSpecificHeader.codecHeader.VP8.pictureId = 0;
-  FrameData frame_data;
-  frame_data.rtt_ms = 0;
-  frame_data.rolling_average_packets_per_frame = -1;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  dec_state.SetState(&frame);
-  // tl0PicIdx 0, temporal id 1.
-  frame.Reset();
-  ++packet.timestamp;
-  ++packet.seqNum;
-  packet.codecSpecificHeader.codecHeader.VP8.temporalIdx++;
-  packet.codecSpecificHeader.codecHeader.VP8.pictureId++;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  EXPECT_TRUE(dec_state.ContinuousFrame(&frame));
-  frame.Reset();
-  // Testing only gap in tl0PicIdx when tl0PicIdx in continuous.
-  packet.codecSpecificHeader.codecHeader.VP8.tl0PicIdx += 3;
-  packet.codecSpecificHeader.codecHeader.VP8.temporalIdx++;
-  packet.codecSpecificHeader.codecHeader.VP8.tl0PicIdx = 1;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  EXPECT_FALSE(dec_state.ContinuousFrame(&frame));
-}
-
-TEST(TestDecodingState, FrameContinuityFlexibleModeKeyFrame) {
-  VCMDecodingState dec_state;
-  VCMFrameBuffer frame;
-  VCMPacket packet;
-  packet.isFirstPacket = true;
-  packet.timestamp = 1;
-  packet.seqNum = 0xffff;
-  uint8_t data[] = "I need a data pointer for this test!";
-  packet.sizeBytes = sizeof(data);
-  packet.dataPtr = data;
-  packet.codecSpecificHeader.codec = kRtpVideoVp9;
-
-  RTPVideoHeaderVP9& vp9_hdr = packet.codecSpecificHeader.codecHeader.VP9;
-  vp9_hdr.picture_id = 10;
-  vp9_hdr.flexible_mode = true;
-
-  FrameData frame_data;
-  frame_data.rtt_ms = 0;
-  frame_data.rolling_average_packets_per_frame = -1;
-
-  // Key frame as first frame
-  packet.frameType = kVideoFrameKey;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  EXPECT_TRUE(dec_state.ContinuousFrame(&frame));
-  dec_state.SetState(&frame);
-
-  // Key frame again
-  vp9_hdr.picture_id = 11;
-  frame.Reset();
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  EXPECT_TRUE(dec_state.ContinuousFrame(&frame));
-  dec_state.SetState(&frame);
-
-  // Ref to 11, continuous
-  frame.Reset();
-  packet.frameType = kVideoFrameDelta;
-  vp9_hdr.picture_id = 12;
-  vp9_hdr.num_ref_pics = 1;
-  vp9_hdr.pid_diff[0] = 1;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  EXPECT_TRUE(dec_state.ContinuousFrame(&frame));
-}
-
-TEST(TestDecodingState, FrameContinuityFlexibleModeOutOfOrderFrames) {
-  VCMDecodingState dec_state;
-  VCMFrameBuffer frame;
-  VCMPacket packet;
-  packet.isFirstPacket = true;
-  packet.timestamp = 1;
-  packet.seqNum = 0xffff;
-  uint8_t data[] = "I need a data pointer for this test!";
-  packet.sizeBytes = sizeof(data);
-  packet.dataPtr = data;
-  packet.codecSpecificHeader.codec = kRtpVideoVp9;
-
-  RTPVideoHeaderVP9& vp9_hdr = packet.codecSpecificHeader.codecHeader.VP9;
-  vp9_hdr.picture_id = 10;
-  vp9_hdr.flexible_mode = true;
-
-  FrameData frame_data;
-  frame_data.rtt_ms = 0;
-  frame_data.rolling_average_packets_per_frame = -1;
-
-  // Key frame as first frame
-  packet.frameType = kVideoFrameKey;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  EXPECT_TRUE(dec_state.ContinuousFrame(&frame));
-  dec_state.SetState(&frame);
-
-  // Ref to 10, continuous
-  frame.Reset();
-  packet.frameType = kVideoFrameDelta;
-  vp9_hdr.picture_id = 15;
-  vp9_hdr.num_ref_pics = 1;
-  vp9_hdr.pid_diff[0] = 5;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  EXPECT_TRUE(dec_state.ContinuousFrame(&frame));
-  dec_state.SetState(&frame);
-
-  // Out of order, last id 15, this id 12, ref to 10, continuous
-  frame.Reset();
-  vp9_hdr.picture_id = 12;
-  vp9_hdr.pid_diff[0] = 2;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  EXPECT_TRUE(dec_state.ContinuousFrame(&frame));
-  dec_state.SetState(&frame);
-
-  // Ref 10, 12, 15, continuous
-  frame.Reset();
-  vp9_hdr.picture_id = 20;
-  vp9_hdr.num_ref_pics = 3;
-  vp9_hdr.pid_diff[0] = 10;
-  vp9_hdr.pid_diff[1] = 8;
-  vp9_hdr.pid_diff[2] = 5;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  EXPECT_TRUE(dec_state.ContinuousFrame(&frame));
-}
-
-TEST(TestDecodingState, FrameContinuityFlexibleModeGeneral) {
-  VCMDecodingState dec_state;
-  VCMFrameBuffer frame;
-  VCMPacket packet;
-  packet.isFirstPacket = true;
-  packet.timestamp = 1;
-  packet.seqNum = 0xffff;
-  uint8_t data[] = "I need a data pointer for this test!";
-  packet.sizeBytes = sizeof(data);
-  packet.dataPtr = data;
-  packet.codecSpecificHeader.codec = kRtpVideoVp9;
-
-  RTPVideoHeaderVP9& vp9_hdr = packet.codecSpecificHeader.codecHeader.VP9;
-  vp9_hdr.picture_id = 10;
-  vp9_hdr.flexible_mode = true;
-
-  FrameData frame_data;
-  frame_data.rtt_ms = 0;
-  frame_data.rolling_average_packets_per_frame = -1;
-
-  // Key frame as first frame
-  packet.frameType = kVideoFrameKey;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  EXPECT_TRUE(dec_state.ContinuousFrame(&frame));
-
-  // Delta frame as first frame
-  frame.Reset();
-  packet.frameType = kVideoFrameDelta;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  EXPECT_FALSE(dec_state.ContinuousFrame(&frame));
-
-  // Key frame then delta frame
-  frame.Reset();
-  packet.frameType = kVideoFrameKey;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  dec_state.SetState(&frame);
-  frame.Reset();
-  packet.frameType = kVideoFrameDelta;
-  vp9_hdr.num_ref_pics = 1;
-  vp9_hdr.picture_id = 15;
-  vp9_hdr.pid_diff[0] = 5;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  EXPECT_TRUE(dec_state.ContinuousFrame(&frame));
-  dec_state.SetState(&frame);
-
-  // Ref to 11, not continuous
-  frame.Reset();
-  vp9_hdr.picture_id = 16;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  EXPECT_FALSE(dec_state.ContinuousFrame(&frame));
-
-  // Ref to 15, continuous
-  frame.Reset();
-  vp9_hdr.picture_id = 16;
-  vp9_hdr.pid_diff[0] = 1;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  EXPECT_TRUE(dec_state.ContinuousFrame(&frame));
-  dec_state.SetState(&frame);
-
-  // Ref to 11 and 15, not continuous
-  frame.Reset();
-  vp9_hdr.picture_id = 20;
-  vp9_hdr.num_ref_pics = 2;
-  vp9_hdr.pid_diff[0] = 9;
-  vp9_hdr.pid_diff[1] = 5;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  EXPECT_FALSE(dec_state.ContinuousFrame(&frame));
-
-  // Ref to 10, 15 and 16, continuous
-  frame.Reset();
-  vp9_hdr.picture_id = 22;
-  vp9_hdr.num_ref_pics = 3;
-  vp9_hdr.pid_diff[0] = 12;
-  vp9_hdr.pid_diff[1] = 7;
-  vp9_hdr.pid_diff[2] = 6;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  EXPECT_TRUE(dec_state.ContinuousFrame(&frame));
-  dec_state.SetState(&frame);
-
-  // Key Frame, continuous
-  frame.Reset();
-  packet.frameType = kVideoFrameKey;
-  vp9_hdr.picture_id = VCMDecodingState::kFrameDecodedLength - 2;
-  vp9_hdr.num_ref_pics = 0;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  EXPECT_TRUE(dec_state.ContinuousFrame(&frame));
-  dec_state.SetState(&frame);
-
-  // Frame at last index, ref to KF, continuous
-  frame.Reset();
-  packet.frameType = kVideoFrameDelta;
-  vp9_hdr.picture_id = VCMDecodingState::kFrameDecodedLength - 1;
-  vp9_hdr.num_ref_pics = 1;
-  vp9_hdr.pid_diff[0] = 1;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  EXPECT_TRUE(dec_state.ContinuousFrame(&frame));
-  dec_state.SetState(&frame);
-
-  // Frame after wrapping buffer length, ref to last index, continuous
-  frame.Reset();
-  vp9_hdr.picture_id = 0;
-  vp9_hdr.num_ref_pics = 1;
-  vp9_hdr.pid_diff[0] = 1;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  EXPECT_TRUE(dec_state.ContinuousFrame(&frame));
-  dec_state.SetState(&frame);
-
-  // Frame after wrapping start frame, ref to 0, continuous
-  frame.Reset();
-  vp9_hdr.picture_id = 20;
-  vp9_hdr.num_ref_pics = 1;
-  vp9_hdr.pid_diff[0] = 20;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  EXPECT_TRUE(dec_state.ContinuousFrame(&frame));
-  dec_state.SetState(&frame);
-
-  // Frame after wrapping start frame, ref to 10, not continuous
-  frame.Reset();
-  vp9_hdr.picture_id = 23;
-  vp9_hdr.num_ref_pics = 1;
-  vp9_hdr.pid_diff[0] = 13;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  EXPECT_FALSE(dec_state.ContinuousFrame(&frame));
-
-  // Key frame, continuous
-  frame.Reset();
-  packet.frameType = kVideoFrameKey;
-  vp9_hdr.picture_id = 25;
-  vp9_hdr.num_ref_pics = 0;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  EXPECT_TRUE(dec_state.ContinuousFrame(&frame));
-  dec_state.SetState(&frame);
-
-  // Ref to KF, continuous
-  frame.Reset();
-  packet.frameType = kVideoFrameDelta;
-  vp9_hdr.picture_id = 26;
-  vp9_hdr.num_ref_pics = 1;
-  vp9_hdr.pid_diff[0] = 1;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  EXPECT_TRUE(dec_state.ContinuousFrame(&frame));
-  dec_state.SetState(&frame);
-
-  // Ref to frame previous to KF, not continuous
-  frame.Reset();
-  vp9_hdr.picture_id = 30;
-  vp9_hdr.num_ref_pics = 1;
-  vp9_hdr.pid_diff[0] = 30;
-  EXPECT_LE(0, frame.InsertPacket(packet, 0, kNoErrors, frame_data));
-  EXPECT_FALSE(dec_state.ContinuousFrame(&frame));
-}
-
-}  // namespace webrtc