| // Copyright 2014 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 "base/macros.h" |
| #include "base/test/simple_test_tick_clock.h" |
| #include "media/cast/net/cast_transport_defines.h" |
| #include "media/cast/net/rtp/mock_rtp_payload_feedback.h" |
| #include "media/cast/test/receiver/framer.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| namespace media { |
| namespace cast { |
| |
| class FramerTest : public ::testing::Test { |
| protected: |
| FramerTest() |
| : mock_rtp_payload_feedback_(), |
| framer_(&testing_clock_, &mock_rtp_payload_feedback_, 0, true, 0) { |
| payload_.assign(kMaxIpPacketSize, 0); |
| |
| EXPECT_CALL(mock_rtp_payload_feedback_, CastFeedback(testing::_)) |
| .WillRepeatedly(testing::Return()); |
| } |
| |
| ~FramerTest() override = default; |
| |
| std::vector<uint8_t> payload_; |
| RtpCastHeader rtp_header_; |
| MockRtpPayloadFeedback mock_rtp_payload_feedback_; |
| Framer framer_; |
| base::SimpleTestTickClock testing_clock_; |
| |
| DISALLOW_COPY_AND_ASSIGN(FramerTest); |
| }; |
| |
| TEST_F(FramerTest, EmptyState) { |
| EncodedFrame frame; |
| bool next_frame = false; |
| bool multiple = false; |
| EXPECT_FALSE(framer_.GetEncodedFrame(&frame, &next_frame, &multiple)); |
| } |
| |
| TEST_F(FramerTest, AlwaysStartWithKey) { |
| EncodedFrame frame; |
| bool next_frame = false; |
| bool complete = false; |
| bool multiple = false; |
| bool duplicate = false; |
| |
| // Insert non key first frame. |
| complete = framer_.InsertPacket(&payload_[0], payload_.size(), rtp_header_, |
| &duplicate); |
| EXPECT_TRUE(complete); |
| EXPECT_FALSE(framer_.GetEncodedFrame(&frame, &next_frame, &multiple)); |
| rtp_header_.frame_id = FrameId::first() + 1; |
| rtp_header_.reference_frame_id = FrameId::first() + 1; |
| rtp_header_.is_key_frame = true; |
| complete = framer_.InsertPacket(&payload_[0], payload_.size(), rtp_header_, |
| &duplicate); |
| EXPECT_TRUE(complete); |
| EXPECT_TRUE(framer_.GetEncodedFrame(&frame, &next_frame, &multiple)); |
| EXPECT_TRUE(next_frame); |
| EXPECT_TRUE(multiple); |
| EXPECT_EQ(EncodedFrame::KEY, frame.dependency); |
| EXPECT_EQ(FrameId::first() + 1, frame.frame_id); |
| EXPECT_EQ(FrameId::first() + 1, frame.referenced_frame_id); |
| framer_.ReleaseFrame(frame.frame_id); |
| } |
| |
| TEST_F(FramerTest, CompleteFrame) { |
| EncodedFrame frame; |
| bool next_frame = false; |
| bool complete = false; |
| bool multiple = false; |
| bool duplicate = false; |
| |
| // Start with a complete key frame. |
| rtp_header_.is_key_frame = true; |
| rtp_header_.frame_id = FrameId::first(); |
| rtp_header_.reference_frame_id = FrameId::first(); |
| complete = framer_.InsertPacket(&payload_[0], payload_.size(), rtp_header_, |
| &duplicate); |
| EXPECT_TRUE(complete); |
| EXPECT_TRUE(framer_.GetEncodedFrame(&frame, &next_frame, &multiple)); |
| EXPECT_TRUE(next_frame); |
| EXPECT_FALSE(multiple); |
| EXPECT_EQ(EncodedFrame::KEY, frame.dependency); |
| EXPECT_EQ(FrameId::first(), frame.frame_id); |
| EXPECT_EQ(FrameId::first(), frame.referenced_frame_id); |
| framer_.ReleaseFrame(frame.frame_id); |
| |
| // Incomplete delta. |
| ++rtp_header_.frame_id; |
| rtp_header_.reference_frame_id = rtp_header_.frame_id - 1; |
| rtp_header_.is_key_frame = false; |
| rtp_header_.max_packet_id = 2; |
| complete = framer_.InsertPacket(&payload_[0], payload_.size(), rtp_header_, |
| &duplicate); |
| EXPECT_FALSE(complete); |
| EXPECT_FALSE(framer_.GetEncodedFrame(&frame, &next_frame, &multiple)); |
| |
| // Complete delta - can't skip, as incomplete sequence. |
| ++rtp_header_.frame_id; |
| rtp_header_.reference_frame_id = rtp_header_.frame_id - 1; |
| rtp_header_.max_packet_id = 0; |
| complete = framer_.InsertPacket(&payload_[0], payload_.size(), rtp_header_, |
| &duplicate); |
| EXPECT_TRUE(complete); |
| EXPECT_FALSE(framer_.GetEncodedFrame(&frame, &next_frame, &multiple)); |
| } |
| |
| TEST_F(FramerTest, DuplicatePackets) { |
| EncodedFrame frame; |
| bool next_frame = false; |
| bool complete = false; |
| bool multiple = false; |
| bool duplicate = false; |
| |
| // Start with an incomplete key frame. |
| rtp_header_.is_key_frame = true; |
| rtp_header_.frame_id = FrameId::first(); |
| rtp_header_.reference_frame_id = FrameId::first(); |
| rtp_header_.max_packet_id = 1; |
| duplicate = true; |
| complete = framer_.InsertPacket(&payload_[0], payload_.size(), rtp_header_, |
| &duplicate); |
| EXPECT_FALSE(complete); |
| EXPECT_FALSE(duplicate); |
| EXPECT_FALSE(framer_.GetEncodedFrame(&frame, &next_frame, &multiple)); |
| |
| // Add same packet again in incomplete key frame. |
| duplicate = false; |
| complete = framer_.InsertPacket(&payload_[0], payload_.size(), rtp_header_, |
| &duplicate); |
| EXPECT_FALSE(complete); |
| EXPECT_TRUE(duplicate); |
| EXPECT_FALSE(framer_.GetEncodedFrame(&frame, &next_frame, &multiple)); |
| |
| // Complete key frame. |
| rtp_header_.packet_id = 1; |
| duplicate = true; |
| complete = framer_.InsertPacket(&payload_[0], payload_.size(), rtp_header_, |
| &duplicate); |
| EXPECT_TRUE(complete); |
| EXPECT_FALSE(duplicate); |
| EXPECT_TRUE(framer_.GetEncodedFrame(&frame, &next_frame, &multiple)); |
| EXPECT_EQ(EncodedFrame::KEY, frame.dependency); |
| EXPECT_FALSE(multiple); |
| EXPECT_EQ(FrameId::first(), frame.referenced_frame_id); |
| |
| // Add same packet again in complete key frame. |
| duplicate = false; |
| complete = framer_.InsertPacket(&payload_[0], payload_.size(), rtp_header_, |
| &duplicate); |
| EXPECT_FALSE(complete); |
| EXPECT_TRUE(duplicate); |
| EXPECT_TRUE(framer_.GetEncodedFrame(&frame, &next_frame, &multiple)); |
| EXPECT_EQ(EncodedFrame::KEY, frame.dependency); |
| EXPECT_EQ(FrameId::first(), frame.frame_id); |
| EXPECT_FALSE(multiple); |
| EXPECT_EQ(FrameId::first(), frame.referenced_frame_id); |
| framer_.ReleaseFrame(frame.frame_id); |
| |
| // Incomplete delta frame. |
| ++rtp_header_.frame_id; |
| rtp_header_.reference_frame_id = rtp_header_.frame_id - 1; |
| rtp_header_.packet_id = 0; |
| rtp_header_.is_key_frame = false; |
| duplicate = true; |
| complete = framer_.InsertPacket(&payload_[0], payload_.size(), rtp_header_, |
| &duplicate); |
| EXPECT_FALSE(complete); |
| EXPECT_FALSE(duplicate); |
| EXPECT_FALSE(framer_.GetEncodedFrame(&frame, &next_frame, &multiple)); |
| |
| // Add same packet again in incomplete delta frame. |
| duplicate = false; |
| complete = framer_.InsertPacket(&payload_[0], payload_.size(), rtp_header_, |
| &duplicate); |
| EXPECT_FALSE(complete); |
| EXPECT_TRUE(duplicate); |
| EXPECT_FALSE(framer_.GetEncodedFrame(&frame, &next_frame, &multiple)); |
| |
| // Complete delta frame. |
| rtp_header_.packet_id = 1; |
| duplicate = true; |
| complete = framer_.InsertPacket(&payload_[0], payload_.size(), rtp_header_, |
| &duplicate); |
| EXPECT_TRUE(complete); |
| EXPECT_FALSE(duplicate); |
| EXPECT_TRUE(framer_.GetEncodedFrame(&frame, &next_frame, &multiple)); |
| EXPECT_EQ(EncodedFrame::DEPENDENT, frame.dependency); |
| EXPECT_EQ(FrameId::first() + 1, frame.frame_id); |
| EXPECT_EQ(FrameId::first(), frame.referenced_frame_id); |
| EXPECT_FALSE(multiple); |
| |
| // Add same packet again in complete delta frame. |
| duplicate = false; |
| complete = framer_.InsertPacket(&payload_[0], payload_.size(), rtp_header_, |
| &duplicate); |
| EXPECT_FALSE(complete); |
| EXPECT_TRUE(duplicate); |
| EXPECT_TRUE(framer_.GetEncodedFrame(&frame, &next_frame, &multiple)); |
| EXPECT_EQ(EncodedFrame::DEPENDENT, frame.dependency); |
| EXPECT_EQ(FrameId::first() + 1, frame.frame_id); |
| EXPECT_EQ(FrameId::first(), frame.referenced_frame_id); |
| EXPECT_FALSE(multiple); |
| } |
| |
| TEST_F(FramerTest, ContinuousSequence) { |
| EncodedFrame frame; |
| bool next_frame = false; |
| bool complete = false; |
| bool multiple = false; |
| bool duplicate = false; |
| |
| // Start with a complete key frame. |
| rtp_header_.is_key_frame = true; |
| rtp_header_.frame_id = FrameId::first(); |
| rtp_header_.reference_frame_id = FrameId::first(); |
| complete = framer_.InsertPacket(&payload_[0], payload_.size(), rtp_header_, |
| &duplicate); |
| EXPECT_TRUE(complete); |
| EXPECT_TRUE(framer_.GetEncodedFrame(&frame, &next_frame, &multiple)); |
| EXPECT_TRUE(next_frame); |
| EXPECT_FALSE(multiple); |
| EXPECT_EQ(EncodedFrame::KEY, frame.dependency); |
| EXPECT_EQ(FrameId::first(), frame.frame_id); |
| EXPECT_EQ(FrameId::first(), frame.referenced_frame_id); |
| framer_.ReleaseFrame(frame.frame_id); |
| |
| // Complete - not continuous. |
| rtp_header_.frame_id = FrameId::first() + 2; |
| rtp_header_.reference_frame_id = rtp_header_.frame_id - 1; |
| rtp_header_.is_key_frame = false; |
| complete = framer_.InsertPacket(&payload_[0], payload_.size(), rtp_header_, |
| &duplicate); |
| EXPECT_TRUE(complete); |
| EXPECT_FALSE(framer_.GetEncodedFrame(&frame, &next_frame, &multiple)); |
| } |
| |
| TEST_F(FramerTest, RequireKeyFrameForFirstFrame) { |
| EncodedFrame frame; |
| bool next_frame = false; |
| bool multiple = false; |
| bool duplicate = false; |
| |
| // Start with a complete key frame. |
| rtp_header_.is_key_frame = false; |
| rtp_header_.frame_id = FrameId::first(); |
| framer_.InsertPacket(&payload_[0], payload_.size(), rtp_header_, &duplicate); |
| EXPECT_FALSE(framer_.GetEncodedFrame(&frame, &next_frame, &multiple)); |
| rtp_header_.frame_id = FrameId::first() + 1; |
| rtp_header_.reference_frame_id = FrameId::first() + 1; |
| rtp_header_.is_key_frame = true; |
| framer_.InsertPacket(&payload_[0], payload_.size(), rtp_header_, &duplicate); |
| EXPECT_TRUE(framer_.GetEncodedFrame(&frame, &next_frame, &multiple)); |
| EXPECT_TRUE(next_frame); |
| EXPECT_TRUE(multiple); |
| } |
| |
| TEST_F(FramerTest, BasicNonLastReferenceId) { |
| EncodedFrame frame; |
| bool next_frame = false; |
| bool multiple = false; |
| bool duplicate = false; |
| |
| rtp_header_.is_key_frame = true; |
| rtp_header_.frame_id = FrameId::first(); |
| rtp_header_.reference_frame_id = FrameId::first(); |
| framer_.InsertPacket(&payload_[0], payload_.size(), rtp_header_, &duplicate); |
| |
| EXPECT_TRUE(framer_.GetEncodedFrame(&frame, &next_frame, &multiple)); |
| EXPECT_FALSE(multiple); |
| framer_.ReleaseFrame(frame.frame_id); |
| |
| rtp_header_.is_key_frame = false; |
| rtp_header_.frame_id = FrameId::first() + 5; |
| rtp_header_.reference_frame_id = FrameId::first(); |
| framer_.InsertPacket(&payload_[0], payload_.size(), rtp_header_, &duplicate); |
| |
| EXPECT_TRUE(framer_.GetEncodedFrame(&frame, &next_frame, &multiple)); |
| EXPECT_FALSE(next_frame); |
| EXPECT_FALSE(multiple); |
| } |
| |
| TEST_F(FramerTest, InOrderReferenceFrameSelection) { |
| // Create pattern: 0, 1, 4, 5. |
| EncodedFrame frame; |
| bool next_frame = false; |
| bool multiple = false; |
| bool duplicate = false; |
| |
| rtp_header_.is_key_frame = true; |
| rtp_header_.frame_id = FrameId::first(); |
| rtp_header_.reference_frame_id = FrameId::first(); |
| framer_.InsertPacket(&payload_[0], payload_.size(), rtp_header_, &duplicate); |
| rtp_header_.is_key_frame = false; |
| rtp_header_.frame_id = FrameId::first() + 1; |
| framer_.InsertPacket(&payload_[0], payload_.size(), rtp_header_, &duplicate); |
| |
| // Insert frame #2 partially. |
| rtp_header_.frame_id = FrameId::first() + 2; |
| rtp_header_.max_packet_id = 1; |
| framer_.InsertPacket(&payload_[0], payload_.size(), rtp_header_, &duplicate); |
| rtp_header_.frame_id = FrameId::first() + 4; |
| rtp_header_.max_packet_id = 0; |
| rtp_header_.reference_frame_id = FrameId::first(); |
| framer_.InsertPacket(&payload_[0], payload_.size(), rtp_header_, &duplicate); |
| EXPECT_TRUE(framer_.GetEncodedFrame(&frame, &next_frame, &multiple)); |
| EXPECT_EQ(EncodedFrame::KEY, frame.dependency); |
| EXPECT_EQ(FrameId::first(), frame.frame_id); |
| EXPECT_EQ(FrameId::first(), frame.referenced_frame_id); |
| EXPECT_FALSE(multiple); |
| framer_.ReleaseFrame(frame.frame_id); |
| EXPECT_TRUE(framer_.GetEncodedFrame(&frame, &next_frame, &multiple)); |
| EXPECT_TRUE(next_frame); |
| EXPECT_TRUE(multiple); |
| EXPECT_EQ(EncodedFrame::DEPENDENT, frame.dependency); |
| EXPECT_EQ(FrameId::first() + 1, frame.frame_id); |
| EXPECT_EQ(FrameId::first(), frame.referenced_frame_id); |
| framer_.ReleaseFrame(frame.frame_id); |
| EXPECT_TRUE(framer_.GetEncodedFrame(&frame, &next_frame, &multiple)); |
| EXPECT_FALSE(next_frame); |
| EXPECT_FALSE(multiple); |
| EXPECT_EQ(EncodedFrame::DEPENDENT, frame.dependency); |
| EXPECT_EQ(FrameId::first() + 4, frame.frame_id); |
| EXPECT_EQ(FrameId::first(), frame.referenced_frame_id); |
| framer_.ReleaseFrame(frame.frame_id); |
| // Insert remaining packet of frame #2 - should no be continuous. |
| rtp_header_.frame_id = FrameId::first() + 2; |
| rtp_header_.packet_id = 1; |
| framer_.InsertPacket(&payload_[0], payload_.size(), rtp_header_, &duplicate); |
| EXPECT_FALSE(framer_.GetEncodedFrame(&frame, &next_frame, &multiple)); |
| rtp_header_.frame_id = FrameId::first() + 5; |
| rtp_header_.reference_frame_id = rtp_header_.frame_id - 1; |
| rtp_header_.packet_id = 0; |
| rtp_header_.max_packet_id = 0; |
| framer_.InsertPacket(&payload_[0], payload_.size(), rtp_header_, &duplicate); |
| EXPECT_TRUE(framer_.GetEncodedFrame(&frame, &next_frame, &multiple)); |
| EXPECT_TRUE(next_frame); |
| EXPECT_FALSE(multiple); |
| EXPECT_EQ(EncodedFrame::DEPENDENT, frame.dependency); |
| EXPECT_EQ(FrameId::first() + 5, frame.frame_id); |
| EXPECT_EQ(FrameId::first() + 4, frame.referenced_frame_id); |
| } |
| |
| TEST_F(FramerTest, ReleasesAllReceivedKeyFramesInContinuousSequence) { |
| EncodedFrame frame; |
| bool next_frame = false; |
| bool multiple = false; |
| bool duplicate = false; |
| |
| rtp_header_.is_key_frame = true; |
| rtp_header_.frame_id = FrameId::first() + 254; |
| rtp_header_.reference_frame_id = FrameId::first() + 254; |
| |
| framer_.InsertPacket(&payload_[0], payload_.size(), rtp_header_, &duplicate); |
| EXPECT_TRUE(framer_.GetEncodedFrame(&frame, &next_frame, &multiple)); |
| EXPECT_TRUE(next_frame); |
| EXPECT_FALSE(multiple); |
| EXPECT_EQ(EncodedFrame::KEY, frame.dependency); |
| EXPECT_EQ(FrameId::first() + 254, frame.frame_id); |
| EXPECT_EQ(FrameId::first() + 254, frame.referenced_frame_id); |
| framer_.ReleaseFrame(frame.frame_id); |
| |
| rtp_header_.frame_id = FrameId::first() + 255; |
| rtp_header_.reference_frame_id = FrameId::first() + 255; |
| framer_.InsertPacket(&payload_[0], payload_.size(), rtp_header_, &duplicate); |
| |
| // Insert wrapped frame - should be continuous. |
| rtp_header_.frame_id = FrameId::first() + 256; |
| rtp_header_.reference_frame_id = FrameId::first() + 256; |
| framer_.InsertPacket(&payload_[0], payload_.size(), rtp_header_, &duplicate); |
| |
| EXPECT_TRUE(framer_.GetEncodedFrame(&frame, &next_frame, &multiple)); |
| EXPECT_TRUE(next_frame); |
| EXPECT_TRUE(multiple); |
| EXPECT_EQ(EncodedFrame::KEY, frame.dependency); |
| EXPECT_EQ(FrameId::first() + 255, frame.frame_id); |
| EXPECT_EQ(FrameId::first() + 255, frame.referenced_frame_id); |
| framer_.ReleaseFrame(frame.frame_id); |
| |
| EXPECT_TRUE(framer_.GetEncodedFrame(&frame, &next_frame, &multiple)); |
| EXPECT_TRUE(next_frame); |
| EXPECT_FALSE(multiple); |
| EXPECT_EQ(EncodedFrame::KEY, frame.dependency); |
| EXPECT_EQ(FrameId::first() + 256, frame.frame_id); |
| EXPECT_EQ(FrameId::first() + 256, frame.referenced_frame_id); |
| framer_.ReleaseFrame(frame.frame_id); |
| } |
| |
| TEST_F(FramerTest, SkipsMissingFramesWhenLaterKeyFramesAreAvailable) { |
| EncodedFrame frame; |
| bool next_frame = false; |
| bool multiple = true; |
| bool duplicate = false; |
| |
| // Insert and get first frame's packet. |
| rtp_header_.is_key_frame = true; |
| rtp_header_.frame_id = FrameId::first() + 253; |
| rtp_header_.reference_frame_id = FrameId::first() + 253; |
| framer_.InsertPacket(&payload_[0], payload_.size(), rtp_header_, &duplicate); |
| EXPECT_TRUE(framer_.GetEncodedFrame(&frame, &next_frame, &multiple)); |
| EXPECT_TRUE(next_frame); |
| EXPECT_FALSE(multiple); |
| EXPECT_EQ(EncodedFrame::KEY, frame.dependency); |
| EXPECT_EQ(FrameId::first() + 253, frame.frame_id); |
| EXPECT_EQ(FrameId::first() + 253, frame.referenced_frame_id); |
| framer_.ReleaseFrame(frame.frame_id); |
| |
| // Insert third and fourth frames' packet. |
| rtp_header_.frame_id = FrameId::first() + 255; |
| rtp_header_.reference_frame_id = FrameId::first() + 255; |
| framer_.InsertPacket(&payload_[0], payload_.size(), rtp_header_, &duplicate); |
| rtp_header_.frame_id = FrameId::first() + 256; |
| rtp_header_.reference_frame_id = FrameId::first() + 256; |
| framer_.InsertPacket(&payload_[0], payload_.size(), rtp_header_, &duplicate); |
| |
| // Get third and fourth frame. |
| EXPECT_TRUE(framer_.GetEncodedFrame(&frame, &next_frame, &multiple)); |
| EXPECT_FALSE(next_frame); |
| EXPECT_TRUE(multiple); |
| EXPECT_EQ(EncodedFrame::KEY, frame.dependency); |
| EXPECT_EQ(FrameId::first() + 255, frame.frame_id); |
| EXPECT_EQ(FrameId::first() + 255, frame.referenced_frame_id); |
| framer_.ReleaseFrame(frame.frame_id); |
| EXPECT_TRUE(framer_.GetEncodedFrame(&frame, &next_frame, &multiple)); |
| EXPECT_TRUE(next_frame); |
| EXPECT_FALSE(multiple); |
| EXPECT_EQ(EncodedFrame::KEY, frame.dependency); |
| EXPECT_EQ(FrameId::first() + 256, frame.frame_id); |
| EXPECT_EQ(FrameId::first() + 256, frame.referenced_frame_id); |
| framer_.ReleaseFrame(frame.frame_id); |
| } |
| |
| } // namespace cast |
| } // namespace media |