340 lines
11 KiB
C++
340 lines
11 KiB
C++
/*
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* Copyright (c) 2009 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "webrtc/base/gunit.h"
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#include "webrtc/media/base/codec.h"
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using cricket::AudioCodec;
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using cricket::Codec;
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using cricket::DataCodec;
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using cricket::FeedbackParam;
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using cricket::VideoCodec;
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using cricket::kCodecParamAssociatedPayloadType;
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using cricket::kCodecParamMaxBitrate;
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using cricket::kCodecParamMinBitrate;
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class CodecTest : public testing::Test {
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public:
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CodecTest() {}
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};
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TEST_F(CodecTest, TestCodecOperators) {
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Codec c0(96, "D", 1000);
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c0.SetParam("a", 1);
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Codec c1 = c0;
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EXPECT_TRUE(c1 == c0);
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int param_value0;
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int param_value1;
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EXPECT_TRUE(c0.GetParam("a", ¶m_value0));
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EXPECT_TRUE(c1.GetParam("a", ¶m_value1));
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EXPECT_EQ(param_value0, param_value1);
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c1.id = 86;
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EXPECT_TRUE(c0 != c1);
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c1 = c0;
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c1.name = "x";
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EXPECT_TRUE(c0 != c1);
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c1 = c0;
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c1.clockrate = 2000;
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EXPECT_TRUE(c0 != c1);
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c1 = c0;
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c1.SetParam("a", 2);
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EXPECT_TRUE(c0 != c1);
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Codec c5;
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Codec c6(0, "", 0);
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EXPECT_TRUE(c5 == c6);
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}
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TEST_F(CodecTest, TestAudioCodecOperators) {
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AudioCodec c0(96, "A", 44100, 20000, 2);
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AudioCodec c1(95, "A", 44100, 20000, 2);
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AudioCodec c2(96, "x", 44100, 20000, 2);
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AudioCodec c3(96, "A", 48000, 20000, 2);
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AudioCodec c4(96, "A", 44100, 10000, 2);
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AudioCodec c5(96, "A", 44100, 20000, 1);
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EXPECT_TRUE(c0 != c1);
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EXPECT_TRUE(c0 != c2);
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EXPECT_TRUE(c0 != c3);
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EXPECT_TRUE(c0 != c4);
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EXPECT_TRUE(c0 != c5);
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AudioCodec c7;
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AudioCodec c8(0, "", 0, 0, 0);
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AudioCodec c9 = c0;
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EXPECT_TRUE(c8 == c7);
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EXPECT_TRUE(c9 != c7);
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EXPECT_TRUE(c9 == c0);
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AudioCodec c10(c0);
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AudioCodec c11(c0);
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AudioCodec c12(c0);
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AudioCodec c13(c0);
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c10.params["x"] = "abc";
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c11.params["x"] = "def";
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c12.params["y"] = "abc";
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c13.params["x"] = "abc";
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EXPECT_TRUE(c10 != c0);
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EXPECT_TRUE(c11 != c0);
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EXPECT_TRUE(c11 != c10);
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EXPECT_TRUE(c12 != c0);
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EXPECT_TRUE(c12 != c10);
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EXPECT_TRUE(c12 != c11);
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EXPECT_TRUE(c13 == c10);
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}
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TEST_F(CodecTest, TestAudioCodecMatches) {
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// Test a codec with a static payload type.
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AudioCodec c0(95, "A", 44100, 20000, 1);
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EXPECT_TRUE(c0.Matches(AudioCodec(95, "", 44100, 20000, 1)));
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EXPECT_TRUE(c0.Matches(AudioCodec(95, "", 44100, 20000, 0)));
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EXPECT_TRUE(c0.Matches(AudioCodec(95, "", 44100, 0, 0)));
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EXPECT_TRUE(c0.Matches(AudioCodec(95, "", 0, 0, 0)));
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EXPECT_FALSE(c0.Matches(AudioCodec(96, "", 44100, 20000, 1)));
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EXPECT_FALSE(c0.Matches(AudioCodec(95, "", 55100, 20000, 1)));
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EXPECT_FALSE(c0.Matches(AudioCodec(95, "", 44100, 30000, 1)));
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EXPECT_FALSE(c0.Matches(AudioCodec(95, "", 44100, 20000, 2)));
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EXPECT_FALSE(c0.Matches(AudioCodec(95, "", 55100, 30000, 2)));
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// Test a codec with a dynamic payload type.
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AudioCodec c1(96, "A", 44100, 20000, 1);
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EXPECT_TRUE(c1.Matches(AudioCodec(96, "A", 0, 0, 0)));
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EXPECT_TRUE(c1.Matches(AudioCodec(97, "A", 0, 0, 0)));
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EXPECT_TRUE(c1.Matches(AudioCodec(96, "a", 0, 0, 0)));
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EXPECT_TRUE(c1.Matches(AudioCodec(97, "a", 0, 0, 0)));
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EXPECT_FALSE(c1.Matches(AudioCodec(95, "A", 0, 0, 0)));
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EXPECT_FALSE(c1.Matches(AudioCodec(96, "", 44100, 20000, 2)));
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EXPECT_FALSE(c1.Matches(AudioCodec(96, "A", 55100, 30000, 1)));
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// Test a codec with a dynamic payload type, and auto bitrate.
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AudioCodec c2(97, "A", 16000, 0, 1);
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// Use default bitrate.
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EXPECT_TRUE(c2.Matches(AudioCodec(97, "A", 16000, 0, 1)));
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EXPECT_TRUE(c2.Matches(AudioCodec(97, "A", 16000, 0, 0)));
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// Use explicit bitrate.
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EXPECT_TRUE(c2.Matches(AudioCodec(97, "A", 16000, 32000, 1)));
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// Backward compatibility with clients that might send "-1" (for default).
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EXPECT_TRUE(c2.Matches(AudioCodec(97, "A", 16000, -1, 1)));
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// Stereo doesn't match channels = 0.
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AudioCodec c3(96, "A", 44100, 20000, 2);
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EXPECT_TRUE(c3.Matches(AudioCodec(96, "A", 44100, 20000, 2)));
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EXPECT_FALSE(c3.Matches(AudioCodec(96, "A", 44100, 20000, 1)));
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EXPECT_FALSE(c3.Matches(AudioCodec(96, "A", 44100, 20000, 0)));
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}
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TEST_F(CodecTest, TestVideoCodecOperators) {
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VideoCodec c0(96, "V", 320, 200, 30);
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VideoCodec c1(95, "V", 320, 200, 30);
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VideoCodec c2(96, "x", 320, 200, 30);
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VideoCodec c3(96, "V", 120, 200, 30);
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VideoCodec c4(96, "V", 320, 100, 30);
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VideoCodec c5(96, "V", 320, 200, 10);
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EXPECT_TRUE(c0 != c1);
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EXPECT_TRUE(c0 != c2);
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EXPECT_TRUE(c0 != c3);
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EXPECT_TRUE(c0 != c4);
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EXPECT_TRUE(c0 != c5);
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VideoCodec c7;
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VideoCodec c8(0, "", 0, 0, 0);
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VideoCodec c9 = c0;
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EXPECT_TRUE(c8 == c7);
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EXPECT_TRUE(c9 != c7);
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EXPECT_TRUE(c9 == c0);
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VideoCodec c10(c0);
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VideoCodec c11(c0);
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VideoCodec c12(c0);
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VideoCodec c13(c0);
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c10.params["x"] = "abc";
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c11.params["x"] = "def";
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c12.params["y"] = "abc";
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c13.params["x"] = "abc";
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EXPECT_TRUE(c10 != c0);
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EXPECT_TRUE(c11 != c0);
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EXPECT_TRUE(c11 != c10);
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EXPECT_TRUE(c12 != c0);
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EXPECT_TRUE(c12 != c10);
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EXPECT_TRUE(c12 != c11);
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EXPECT_TRUE(c13 == c10);
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}
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TEST_F(CodecTest, TestVideoCodecMatches) {
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// Test a codec with a static payload type.
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VideoCodec c0(95, "V", 320, 200, 30);
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EXPECT_TRUE(c0.Matches(VideoCodec(95, "", 640, 400, 15)));
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EXPECT_FALSE(c0.Matches(VideoCodec(96, "", 320, 200, 30)));
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// Test a codec with a dynamic payload type.
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VideoCodec c1(96, "V", 320, 200, 30);
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EXPECT_TRUE(c1.Matches(VideoCodec(96, "V", 640, 400, 15)));
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EXPECT_TRUE(c1.Matches(VideoCodec(97, "V", 640, 400, 15)));
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EXPECT_TRUE(c1.Matches(VideoCodec(96, "v", 640, 400, 15)));
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EXPECT_TRUE(c1.Matches(VideoCodec(97, "v", 640, 400, 15)));
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EXPECT_FALSE(c1.Matches(VideoCodec(96, "", 320, 200, 30)));
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EXPECT_FALSE(c1.Matches(VideoCodec(95, "V", 640, 400, 15)));
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}
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TEST_F(CodecTest, TestDataCodecMatches) {
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// Test a codec with a static payload type.
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DataCodec c0(95, "D");
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EXPECT_TRUE(c0.Matches(DataCodec(95, "")));
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EXPECT_FALSE(c0.Matches(DataCodec(96, "")));
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// Test a codec with a dynamic payload type.
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DataCodec c1(96, "D");
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EXPECT_TRUE(c1.Matches(DataCodec(96, "D")));
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EXPECT_TRUE(c1.Matches(DataCodec(97, "D")));
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EXPECT_TRUE(c1.Matches(DataCodec(96, "d")));
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EXPECT_TRUE(c1.Matches(DataCodec(97, "d")));
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EXPECT_FALSE(c1.Matches(DataCodec(96, "")));
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EXPECT_FALSE(c1.Matches(DataCodec(95, "D")));
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}
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TEST_F(CodecTest, TestSetParamGetParamAndRemoveParam) {
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AudioCodec codec;
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codec.SetParam("a", "1");
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codec.SetParam("b", "x");
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int int_value = 0;
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EXPECT_TRUE(codec.GetParam("a", &int_value));
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EXPECT_EQ(1, int_value);
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EXPECT_FALSE(codec.GetParam("b", &int_value));
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EXPECT_FALSE(codec.GetParam("c", &int_value));
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std::string str_value;
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EXPECT_TRUE(codec.GetParam("a", &str_value));
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EXPECT_EQ("1", str_value);
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EXPECT_TRUE(codec.GetParam("b", &str_value));
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EXPECT_EQ("x", str_value);
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EXPECT_FALSE(codec.GetParam("c", &str_value));
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EXPECT_TRUE(codec.RemoveParam("a"));
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EXPECT_FALSE(codec.RemoveParam("c"));
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}
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TEST_F(CodecTest, TestIntersectFeedbackParams) {
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const FeedbackParam a1("a", "1");
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const FeedbackParam b2("b", "2");
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const FeedbackParam b3("b", "3");
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const FeedbackParam c3("c", "3");
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Codec c1;
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c1.AddFeedbackParam(a1); // Only match with c2.
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c1.AddFeedbackParam(b2); // Same param different values.
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c1.AddFeedbackParam(c3); // Not in c2.
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Codec c2;
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c2.AddFeedbackParam(a1);
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c2.AddFeedbackParam(b3);
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c1.IntersectFeedbackParams(c2);
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EXPECT_TRUE(c1.HasFeedbackParam(a1));
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EXPECT_FALSE(c1.HasFeedbackParam(b2));
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EXPECT_FALSE(c1.HasFeedbackParam(c3));
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}
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TEST_F(CodecTest, TestGetCodecType) {
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// Codec type comparison should be case insenstive on names.
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const VideoCodec codec(96, "V", 320, 200, 30);
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const VideoCodec rtx_codec(96, "rTx", 320, 200, 30);
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const VideoCodec ulpfec_codec(96, "ulpFeC", 320, 200, 30);
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const VideoCodec red_codec(96, "ReD", 320, 200, 30);
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EXPECT_EQ(VideoCodec::CODEC_VIDEO, codec.GetCodecType());
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EXPECT_EQ(VideoCodec::CODEC_RTX, rtx_codec.GetCodecType());
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EXPECT_EQ(VideoCodec::CODEC_ULPFEC, ulpfec_codec.GetCodecType());
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EXPECT_EQ(VideoCodec::CODEC_RED, red_codec.GetCodecType());
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}
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TEST_F(CodecTest, TestCreateRtxCodec) {
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VideoCodec rtx_codec = VideoCodec::CreateRtxCodec(96, 120);
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EXPECT_EQ(96, rtx_codec.id);
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EXPECT_EQ(VideoCodec::CODEC_RTX, rtx_codec.GetCodecType());
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int associated_payload_type;
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ASSERT_TRUE(rtx_codec.GetParam(kCodecParamAssociatedPayloadType,
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&associated_payload_type));
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EXPECT_EQ(120, associated_payload_type);
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}
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TEST_F(CodecTest, TestValidateCodecFormat) {
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const VideoCodec codec(96, "V", 320, 200, 30);
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ASSERT_TRUE(codec.ValidateCodecFormat());
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// Accept 0-127 as payload types.
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VideoCodec low_payload_type = codec;
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low_payload_type.id = 0;
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VideoCodec high_payload_type = codec;
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high_payload_type.id = 127;
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ASSERT_TRUE(low_payload_type.ValidateCodecFormat());
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EXPECT_TRUE(high_payload_type.ValidateCodecFormat());
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// Reject negative payloads.
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VideoCodec negative_payload_type = codec;
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negative_payload_type.id = -1;
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EXPECT_FALSE(negative_payload_type.ValidateCodecFormat());
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// Reject too-high payloads.
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VideoCodec too_high_payload_type = codec;
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too_high_payload_type.id = 128;
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EXPECT_FALSE(too_high_payload_type.ValidateCodecFormat());
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// Reject zero-width codecs.
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VideoCodec zero_width = codec;
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zero_width.width = 0;
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EXPECT_FALSE(zero_width.ValidateCodecFormat());
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// Reject zero-height codecs.
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VideoCodec zero_height = codec;
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zero_height.height = 0;
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EXPECT_FALSE(zero_height.ValidateCodecFormat());
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// Accept non-video codecs with zero dimensions.
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VideoCodec zero_width_rtx_codec = VideoCodec::CreateRtxCodec(96, 120);
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zero_width_rtx_codec.width = 0;
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EXPECT_TRUE(zero_width_rtx_codec.ValidateCodecFormat());
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// Reject codecs with min bitrate > max bitrate.
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VideoCodec incorrect_bitrates = codec;
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incorrect_bitrates.params[kCodecParamMinBitrate] = "100";
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incorrect_bitrates.params[kCodecParamMaxBitrate] = "80";
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EXPECT_FALSE(incorrect_bitrates.ValidateCodecFormat());
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// Accept min bitrate == max bitrate.
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VideoCodec equal_bitrates = codec;
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equal_bitrates.params[kCodecParamMinBitrate] = "100";
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equal_bitrates.params[kCodecParamMaxBitrate] = "100";
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EXPECT_TRUE(equal_bitrates.ValidateCodecFormat());
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// Accept min bitrate < max bitrate.
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VideoCodec different_bitrates = codec;
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different_bitrates.params[kCodecParamMinBitrate] = "99";
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different_bitrates.params[kCodecParamMaxBitrate] = "100";
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EXPECT_TRUE(different_bitrates.ValidateCodecFormat());
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}
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TEST_F(CodecTest, TestToCodecParameters) {
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const VideoCodec v(96, "V", 320, 200, 30);
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webrtc::RtpCodecParameters codec_params_1 = v.ToCodecParameters();
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EXPECT_EQ(96, codec_params_1.payload_type);
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EXPECT_EQ("V", codec_params_1.mime_type);
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EXPECT_EQ(cricket::kVideoCodecClockrate, codec_params_1.clock_rate);
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EXPECT_EQ(1, codec_params_1.channels);
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const AudioCodec a(97, "A", 44100, 20000, 2);
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webrtc::RtpCodecParameters codec_params_2 = a.ToCodecParameters();
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EXPECT_EQ(97, codec_params_2.payload_type);
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EXPECT_EQ("A", codec_params_2.mime_type);
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EXPECT_EQ(44100, codec_params_2.clock_rate);
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EXPECT_EQ(2, codec_params_2.channels);
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}
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