/*
* libjingle
* Copyright 2009 Google Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "talk/media/base/codec.h"
#include "webrtc/base/gunit.h"
using cricket::AudioCodec;
using cricket::Codec;
using cricket::DataCodec;
using cricket::FeedbackParam;
using cricket::VideoCodec;
using cricket::kCodecParamAssociatedPayloadType;
using cricket::kCodecParamMaxBitrate;
using cricket::kCodecParamMinBitrate;
class CodecTest : public testing::Test {
public:
CodecTest() {}
};
TEST_F(CodecTest, TestCodecOperators) {
Codec c0(96, "D", 1000, 0);
c0.SetParam("a", 1);
Codec c1 = c0;
EXPECT_TRUE(c1 == c0);
int param_value0;
int param_value1;
EXPECT_TRUE(c0.GetParam("a", ¶m_value0));
EXPECT_TRUE(c1.GetParam("a", ¶m_value1));
EXPECT_EQ(param_value0, param_value1);
c1.id = 86;
EXPECT_TRUE(c0 != c1);
c1 = c0;
c1.name = "x";
EXPECT_TRUE(c0 != c1);
c1 = c0;
c1.clockrate = 2000;
EXPECT_TRUE(c0 != c1);
c1 = c0;
c1.preference = 1;
EXPECT_TRUE(c0 != c1);
c1 = c0;
c1.SetParam("a", 2);
EXPECT_TRUE(c0 != c1);
Codec c5;
Codec c6(0, "", 0, 0);
EXPECT_TRUE(c5 == c6);
}
TEST_F(CodecTest, TestAudioCodecOperators) {
AudioCodec c0(96, "A", 44100, 20000, 2, 3);
AudioCodec c1(95, "A", 44100, 20000, 2, 3);
AudioCodec c2(96, "x", 44100, 20000, 2, 3);
AudioCodec c3(96, "A", 48000, 20000, 2, 3);
AudioCodec c4(96, "A", 44100, 10000, 2, 3);
AudioCodec c5(96, "A", 44100, 20000, 1, 3);
AudioCodec c6(96, "A", 44100, 20000, 2, 1);
EXPECT_TRUE(c0 != c1);
EXPECT_TRUE(c0 != c2);
EXPECT_TRUE(c0 != c3);
EXPECT_TRUE(c0 != c4);
EXPECT_TRUE(c0 != c5);
EXPECT_TRUE(c0 != c6);
AudioCodec c7;
AudioCodec c8(0, "", 0, 0, 0, 0);
AudioCodec c9 = c0;
EXPECT_TRUE(c8 == c7);
EXPECT_TRUE(c9 != c7);
EXPECT_TRUE(c9 == c0);
AudioCodec c10(c0);
AudioCodec c11(c0);
AudioCodec c12(c0);
AudioCodec c13(c0);
c10.params["x"] = "abc";
c11.params["x"] = "def";
c12.params["y"] = "abc";
c13.params["x"] = "abc";
EXPECT_TRUE(c10 != c0);
EXPECT_TRUE(c11 != c0);
EXPECT_TRUE(c11 != c10);
EXPECT_TRUE(c12 != c0);
EXPECT_TRUE(c12 != c10);
EXPECT_TRUE(c12 != c11);
EXPECT_TRUE(c13 == c10);
}
TEST_F(CodecTest, TestAudioCodecMatches) {
// Test a codec with a static payload type.
AudioCodec c0(95, "A", 44100, 20000, 1, 3);
EXPECT_TRUE(c0.Matches(AudioCodec(95, "", 44100, 20000, 1, 0)));
EXPECT_TRUE(c0.Matches(AudioCodec(95, "", 44100, 20000, 0, 0)));
EXPECT_TRUE(c0.Matches(AudioCodec(95, "", 44100, 0, 0, 0)));
EXPECT_TRUE(c0.Matches(AudioCodec(95, "", 0, 0, 0, 0)));
EXPECT_FALSE(c0.Matches(AudioCodec(96, "", 44100, 20000, 1, 0)));
EXPECT_FALSE(c0.Matches(AudioCodec(95, "", 55100, 20000, 1, 0)));
EXPECT_FALSE(c0.Matches(AudioCodec(95, "", 44100, 30000, 1, 0)));
EXPECT_FALSE(c0.Matches(AudioCodec(95, "", 44100, 20000, 2, 0)));
EXPECT_FALSE(c0.Matches(AudioCodec(95, "", 55100, 30000, 2, 0)));
// Test a codec with a dynamic payload type.
AudioCodec c1(96, "A", 44100, 20000, 1, 3);
EXPECT_TRUE(c1.Matches(AudioCodec(96, "A", 0, 0, 0, 0)));
EXPECT_TRUE(c1.Matches(AudioCodec(97, "A", 0, 0, 0, 0)));
EXPECT_TRUE(c1.Matches(AudioCodec(96, "a", 0, 0, 0, 0)));
EXPECT_TRUE(c1.Matches(AudioCodec(97, "a", 0, 0, 0, 0)));
EXPECT_FALSE(c1.Matches(AudioCodec(95, "A", 0, 0, 0, 0)));
EXPECT_FALSE(c1.Matches(AudioCodec(96, "", 44100, 20000, 2, 0)));
EXPECT_FALSE(c1.Matches(AudioCodec(96, "A", 55100, 30000, 1, 0)));
// Test a codec with a dynamic payload type, and auto bitrate.
AudioCodec c2(97, "A", 16000, 0, 1, 3);
// Use default bitrate.
EXPECT_TRUE(c2.Matches(AudioCodec(97, "A", 16000, 0, 1, 0)));
EXPECT_TRUE(c2.Matches(AudioCodec(97, "A", 16000, 0, 0, 0)));
// Use explicit bitrate.
EXPECT_TRUE(c2.Matches(AudioCodec(97, "A", 16000, 32000, 1, 0)));
// Backward compatibility with clients that might send "-1" (for default).
EXPECT_TRUE(c2.Matches(AudioCodec(97, "A", 16000, -1, 1, 0)));
// Stereo doesn't match channels = 0.
AudioCodec c3(96, "A", 44100, 20000, 2, 3);
EXPECT_TRUE(c3.Matches(AudioCodec(96, "A", 44100, 20000, 2, 3)));
EXPECT_FALSE(c3.Matches(AudioCodec(96, "A", 44100, 20000, 1, 3)));
EXPECT_FALSE(c3.Matches(AudioCodec(96, "A", 44100, 20000, 0, 3)));
}
TEST_F(CodecTest, TestVideoCodecOperators) {
VideoCodec c0(96, "V", 320, 200, 30, 3);
VideoCodec c1(95, "V", 320, 200, 30, 3);
VideoCodec c2(96, "x", 320, 200, 30, 3);
VideoCodec c3(96, "V", 120, 200, 30, 3);
VideoCodec c4(96, "V", 320, 100, 30, 3);
VideoCodec c5(96, "V", 320, 200, 10, 3);
VideoCodec c6(96, "V", 320, 200, 30, 1);
EXPECT_TRUE(c0 != c1);
EXPECT_TRUE(c0 != c2);
EXPECT_TRUE(c0 != c3);
EXPECT_TRUE(c0 != c4);
EXPECT_TRUE(c0 != c5);
EXPECT_TRUE(c0 != c6);
VideoCodec c7;
VideoCodec c8(0, "", 0, 0, 0, 0);
VideoCodec c9 = c0;
EXPECT_TRUE(c8 == c7);
EXPECT_TRUE(c9 != c7);
EXPECT_TRUE(c9 == c0);
VideoCodec c10(c0);
VideoCodec c11(c0);
VideoCodec c12(c0);
VideoCodec c13(c0);
c10.params["x"] = "abc";
c11.params["x"] = "def";
c12.params["y"] = "abc";
c13.params["x"] = "abc";
EXPECT_TRUE(c10 != c0);
EXPECT_TRUE(c11 != c0);
EXPECT_TRUE(c11 != c10);
EXPECT_TRUE(c12 != c0);
EXPECT_TRUE(c12 != c10);
EXPECT_TRUE(c12 != c11);
EXPECT_TRUE(c13 == c10);
}
TEST_F(CodecTest, TestVideoCodecMatches) {
// Test a codec with a static payload type.
VideoCodec c0(95, "V", 320, 200, 30, 3);
EXPECT_TRUE(c0.Matches(VideoCodec(95, "", 640, 400, 15, 0)));
EXPECT_FALSE(c0.Matches(VideoCodec(96, "", 320, 200, 30, 0)));
// Test a codec with a dynamic payload type.
VideoCodec c1(96, "V", 320, 200, 30, 3);
EXPECT_TRUE(c1.Matches(VideoCodec(96, "V", 640, 400, 15, 0)));
EXPECT_TRUE(c1.Matches(VideoCodec(97, "V", 640, 400, 15, 0)));
EXPECT_TRUE(c1.Matches(VideoCodec(96, "v", 640, 400, 15, 0)));
EXPECT_TRUE(c1.Matches(VideoCodec(97, "v", 640, 400, 15, 0)));
EXPECT_FALSE(c1.Matches(VideoCodec(96, "", 320, 200, 30, 0)));
EXPECT_FALSE(c1.Matches(VideoCodec(95, "V", 640, 400, 15, 0)));
}
TEST_F(CodecTest, TestDataCodecMatches) {
// Test a codec with a static payload type.
DataCodec c0(95, "D", 0);
EXPECT_TRUE(c0.Matches(DataCodec(95, "", 0)));
EXPECT_FALSE(c0.Matches(DataCodec(96, "", 0)));
// Test a codec with a dynamic payload type.
DataCodec c1(96, "D", 3);
EXPECT_TRUE(c1.Matches(DataCodec(96, "D", 0)));
EXPECT_TRUE(c1.Matches(DataCodec(97, "D", 0)));
EXPECT_TRUE(c1.Matches(DataCodec(96, "d", 0)));
EXPECT_TRUE(c1.Matches(DataCodec(97, "d", 0)));
EXPECT_FALSE(c1.Matches(DataCodec(96, "", 0)));
EXPECT_FALSE(c1.Matches(DataCodec(95, "D", 0)));
}
TEST_F(CodecTest, TestSetParamGetParamAndRemoveParam) {
AudioCodec codec;
codec.SetParam("a", "1");
codec.SetParam("b", "x");
int int_value = 0;
EXPECT_TRUE(codec.GetParam("a", &int_value));
EXPECT_EQ(1, int_value);
EXPECT_FALSE(codec.GetParam("b", &int_value));
EXPECT_FALSE(codec.GetParam("c", &int_value));
std::string str_value;
EXPECT_TRUE(codec.GetParam("a", &str_value));
EXPECT_EQ("1", str_value);
EXPECT_TRUE(codec.GetParam("b", &str_value));
EXPECT_EQ("x", str_value);
EXPECT_FALSE(codec.GetParam("c", &str_value));
EXPECT_TRUE(codec.RemoveParam("a"));
EXPECT_FALSE(codec.RemoveParam("c"));
}
TEST_F(CodecTest, TestIntersectFeedbackParams) {
const FeedbackParam a1("a", "1");
const FeedbackParam b2("b", "2");
const FeedbackParam b3("b", "3");
const FeedbackParam c3("c", "3");
Codec c1;
c1.AddFeedbackParam(a1); // Only match with c2.
c1.AddFeedbackParam(b2); // Same param different values.
c1.AddFeedbackParam(c3); // Not in c2.
Codec c2;
c2.AddFeedbackParam(a1);
c2.AddFeedbackParam(b3);
c1.IntersectFeedbackParams(c2);
EXPECT_TRUE(c1.HasFeedbackParam(a1));
EXPECT_FALSE(c1.HasFeedbackParam(b2));
EXPECT_FALSE(c1.HasFeedbackParam(c3));
}
TEST_F(CodecTest, TestGetCodecType) {
// Codec type comparison should be case insenstive on names.
const VideoCodec codec(96, "V", 320, 200, 30, 3);
const VideoCodec rtx_codec(96, "rTx", 320, 200, 30, 3);
const VideoCodec ulpfec_codec(96, "ulpFeC", 320, 200, 30, 3);
const VideoCodec red_codec(96, "ReD", 320, 200, 30, 3);
EXPECT_EQ(VideoCodec::CODEC_VIDEO, codec.GetCodecType());
EXPECT_EQ(VideoCodec::CODEC_RTX, rtx_codec.GetCodecType());
EXPECT_EQ(VideoCodec::CODEC_ULPFEC, ulpfec_codec.GetCodecType());
EXPECT_EQ(VideoCodec::CODEC_RED, red_codec.GetCodecType());
}
TEST_F(CodecTest, TestCreateRtxCodec) {
VideoCodec rtx_codec = VideoCodec::CreateRtxCodec(96, 120);
EXPECT_EQ(96, rtx_codec.id);
EXPECT_EQ(VideoCodec::CODEC_RTX, rtx_codec.GetCodecType());
int associated_payload_type;
ASSERT_TRUE(rtx_codec.GetParam(kCodecParamAssociatedPayloadType,
&associated_payload_type));
EXPECT_EQ(120, associated_payload_type);
}
TEST_F(CodecTest, TestValidateCodecFormat) {
const VideoCodec codec(96, "V", 320, 200, 30, 3);
ASSERT_TRUE(codec.ValidateCodecFormat());
// Accept 0-127 as payload types.
VideoCodec low_payload_type = codec;
low_payload_type.id = 0;
VideoCodec high_payload_type = codec;
high_payload_type.id = 127;
ASSERT_TRUE(low_payload_type.ValidateCodecFormat());
EXPECT_TRUE(high_payload_type.ValidateCodecFormat());
// Reject negative payloads.
VideoCodec negative_payload_type = codec;
negative_payload_type.id = -1;
EXPECT_FALSE(negative_payload_type.ValidateCodecFormat());
// Reject too-high payloads.
VideoCodec too_high_payload_type = codec;
too_high_payload_type.id = 128;
EXPECT_FALSE(too_high_payload_type.ValidateCodecFormat());
// Reject zero-width codecs.
VideoCodec zero_width = codec;
zero_width.width = 0;
EXPECT_FALSE(zero_width.ValidateCodecFormat());
// Reject zero-height codecs.
VideoCodec zero_height = codec;
zero_height.height = 0;
EXPECT_FALSE(zero_height.ValidateCodecFormat());
// Accept non-video codecs with zero dimensions.
VideoCodec zero_width_rtx_codec = VideoCodec::CreateRtxCodec(96, 120);
zero_width_rtx_codec.width = 0;
EXPECT_TRUE(zero_width_rtx_codec.ValidateCodecFormat());
// Reject codecs with min bitrate > max bitrate.
VideoCodec incorrect_bitrates = codec;
incorrect_bitrates.params[kCodecParamMinBitrate] = "100";
incorrect_bitrates.params[kCodecParamMaxBitrate] = "80";
EXPECT_FALSE(incorrect_bitrates.ValidateCodecFormat());
// Accept min bitrate == max bitrate.
VideoCodec equal_bitrates = codec;
equal_bitrates.params[kCodecParamMinBitrate] = "100";
equal_bitrates.params[kCodecParamMaxBitrate] = "100";
EXPECT_TRUE(equal_bitrates.ValidateCodecFormat());
// Accept min bitrate < max bitrate.
VideoCodec different_bitrates = codec;
different_bitrates.params[kCodecParamMinBitrate] = "99";
different_bitrates.params[kCodecParamMaxBitrate] = "100";
EXPECT_TRUE(different_bitrates.ValidateCodecFormat());
}