1 /*
2 * libjingle
3 * Copyright 2012 Google Inc.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice,
9 * this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright notice,
11 * this list of conditions and the following disclaimer in the documentation
12 * and/or other materials provided with the distribution.
13 * 3. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28 #include "talk/media/base/streamparams.h"
29 #include "talk/media/base/testutils.h"
30 #include "webrtc/base/arraysize.h"
31 #include "webrtc/base/gunit.h"
32
33 static const uint32_t kSsrcs1[] = {1};
34 static const uint32_t kSsrcs2[] = {1, 2};
35 static const uint32_t kSsrcs3[] = {1, 2, 3};
36 static const uint32_t kRtxSsrcs3[] = {4, 5, 6};
37
CreateStreamParamsWithSsrcGroup(const std::string & semantics,const uint32_t ssrcs_in[],size_t len)38 static cricket::StreamParams CreateStreamParamsWithSsrcGroup(
39 const std::string& semantics,
40 const uint32_t ssrcs_in[],
41 size_t len) {
42 cricket::StreamParams stream;
43 std::vector<uint32_t> ssrcs(ssrcs_in, ssrcs_in + len);
44 cricket::SsrcGroup sg(semantics, ssrcs);
45 stream.ssrcs = ssrcs;
46 stream.ssrc_groups.push_back(sg);
47 return stream;
48 }
49
TEST(SsrcGroup,EqualNotEqual)50 TEST(SsrcGroup, EqualNotEqual) {
51 cricket::SsrcGroup ssrc_groups[] = {
52 cricket::SsrcGroup("ABC", MAKE_VECTOR(kSsrcs1)),
53 cricket::SsrcGroup("ABC", MAKE_VECTOR(kSsrcs2)),
54 cricket::SsrcGroup("Abc", MAKE_VECTOR(kSsrcs2)),
55 cricket::SsrcGroup("abc", MAKE_VECTOR(kSsrcs2)),
56 };
57
58 for (size_t i = 0; i < arraysize(ssrc_groups); ++i) {
59 for (size_t j = 0; j < arraysize(ssrc_groups); ++j) {
60 EXPECT_EQ((ssrc_groups[i] == ssrc_groups[j]), (i == j));
61 EXPECT_EQ((ssrc_groups[i] != ssrc_groups[j]), (i != j));
62 }
63 }
64 }
65
TEST(SsrcGroup,HasSemantics)66 TEST(SsrcGroup, HasSemantics) {
67 cricket::SsrcGroup sg1("ABC", MAKE_VECTOR(kSsrcs1));
68 EXPECT_TRUE(sg1.has_semantics("ABC"));
69
70 cricket::SsrcGroup sg2("Abc", MAKE_VECTOR(kSsrcs1));
71 EXPECT_FALSE(sg2.has_semantics("ABC"));
72
73 cricket::SsrcGroup sg3("abc", MAKE_VECTOR(kSsrcs1));
74 EXPECT_FALSE(sg3.has_semantics("ABC"));
75 }
76
TEST(SsrcGroup,ToString)77 TEST(SsrcGroup, ToString) {
78 cricket::SsrcGroup sg1("ABC", MAKE_VECTOR(kSsrcs1));
79 EXPECT_STREQ("{semantics:ABC;ssrcs:[1]}", sg1.ToString().c_str());
80 }
81
TEST(StreamParams,CreateLegacy)82 TEST(StreamParams, CreateLegacy) {
83 const uint32_t ssrc = 7;
84 cricket::StreamParams one_sp = cricket::StreamParams::CreateLegacy(ssrc);
85 EXPECT_EQ(1U, one_sp.ssrcs.size());
86 EXPECT_EQ(ssrc, one_sp.first_ssrc());
87 EXPECT_TRUE(one_sp.has_ssrcs());
88 EXPECT_TRUE(one_sp.has_ssrc(ssrc));
89 EXPECT_FALSE(one_sp.has_ssrc(ssrc+1));
90 EXPECT_FALSE(one_sp.has_ssrc_groups());
91 EXPECT_EQ(0U, one_sp.ssrc_groups.size());
92 }
93
TEST(StreamParams,HasSsrcGroup)94 TEST(StreamParams, HasSsrcGroup) {
95 cricket::StreamParams sp =
96 CreateStreamParamsWithSsrcGroup("XYZ", kSsrcs2, arraysize(kSsrcs2));
97 EXPECT_EQ(2U, sp.ssrcs.size());
98 EXPECT_EQ(kSsrcs2[0], sp.first_ssrc());
99 EXPECT_TRUE(sp.has_ssrcs());
100 EXPECT_TRUE(sp.has_ssrc(kSsrcs2[0]));
101 EXPECT_TRUE(sp.has_ssrc(kSsrcs2[1]));
102 EXPECT_TRUE(sp.has_ssrc_group("XYZ"));
103 EXPECT_EQ(1U, sp.ssrc_groups.size());
104 EXPECT_EQ(2U, sp.ssrc_groups[0].ssrcs.size());
105 EXPECT_EQ(kSsrcs2[0], sp.ssrc_groups[0].ssrcs[0]);
106 EXPECT_EQ(kSsrcs2[1], sp.ssrc_groups[0].ssrcs[1]);
107 }
108
TEST(StreamParams,GetSsrcGroup)109 TEST(StreamParams, GetSsrcGroup) {
110 cricket::StreamParams sp =
111 CreateStreamParamsWithSsrcGroup("XYZ", kSsrcs2, arraysize(kSsrcs2));
112 EXPECT_EQ(NULL, sp.get_ssrc_group("xyz"));
113 EXPECT_EQ(&sp.ssrc_groups[0], sp.get_ssrc_group("XYZ"));
114 }
115
TEST(StreamParams,EqualNotEqual)116 TEST(StreamParams, EqualNotEqual) {
117 cricket::StreamParams l1 = cricket::StreamParams::CreateLegacy(1);
118 cricket::StreamParams l2 = cricket::StreamParams::CreateLegacy(2);
119 cricket::StreamParams sg1 =
120 CreateStreamParamsWithSsrcGroup("ABC", kSsrcs1, arraysize(kSsrcs1));
121 cricket::StreamParams sg2 =
122 CreateStreamParamsWithSsrcGroup("ABC", kSsrcs2, arraysize(kSsrcs2));
123 cricket::StreamParams sg3 =
124 CreateStreamParamsWithSsrcGroup("Abc", kSsrcs2, arraysize(kSsrcs2));
125 cricket::StreamParams sg4 =
126 CreateStreamParamsWithSsrcGroup("abc", kSsrcs2, arraysize(kSsrcs2));
127 cricket::StreamParams sps[] = {l1, l2, sg1, sg2, sg3, sg4};
128
129 for (size_t i = 0; i < arraysize(sps); ++i) {
130 for (size_t j = 0; j < arraysize(sps); ++j) {
131 EXPECT_EQ((sps[i] == sps[j]), (i == j));
132 EXPECT_EQ((sps[i] != sps[j]), (i != j));
133 }
134 }
135 }
136
TEST(StreamParams,FidFunctions)137 TEST(StreamParams, FidFunctions) {
138 uint32_t fid_ssrc;
139
140 cricket::StreamParams sp = cricket::StreamParams::CreateLegacy(1);
141 EXPECT_FALSE(sp.AddFidSsrc(10, 20));
142 EXPECT_TRUE(sp.AddFidSsrc(1, 2));
143 EXPECT_TRUE(sp.GetFidSsrc(1, &fid_ssrc));
144 EXPECT_EQ(2u, fid_ssrc);
145 EXPECT_FALSE(sp.GetFidSsrc(15, &fid_ssrc));
146
147 sp.add_ssrc(20);
148 sp.AddFidSsrc(20, 30);
149 EXPECT_TRUE(sp.GetFidSsrc(20, &fid_ssrc));
150 EXPECT_EQ(30u, fid_ssrc);
151
152 // Manually create SsrcGroup to test bounds-checking
153 // in GetSecondarySsrc. We construct an invalid StreamParams
154 // for this.
155 std::vector<uint32_t> fid_vector;
156 fid_vector.push_back(13);
157 cricket::SsrcGroup invalid_fid_group(cricket::kFidSsrcGroupSemantics,
158 fid_vector);
159 cricket::StreamParams sp_invalid;
160 sp_invalid.add_ssrc(13);
161 sp_invalid.ssrc_groups.push_back(invalid_fid_group);
162 EXPECT_FALSE(sp_invalid.GetFidSsrc(13, &fid_ssrc));
163 }
164
TEST(StreamParams,GetPrimaryAndFidSsrcs)165 TEST(StreamParams, GetPrimaryAndFidSsrcs) {
166 cricket::StreamParams sp;
167 sp.ssrcs.push_back(1);
168 sp.ssrcs.push_back(2);
169 sp.ssrcs.push_back(3);
170
171 std::vector<uint32_t> primary_ssrcs;
172 sp.GetPrimarySsrcs(&primary_ssrcs);
173 std::vector<uint32_t> fid_ssrcs;
174 sp.GetFidSsrcs(primary_ssrcs, &fid_ssrcs);
175 ASSERT_EQ(1u, primary_ssrcs.size());
176 EXPECT_EQ(1u, primary_ssrcs[0]);
177 ASSERT_EQ(0u, fid_ssrcs.size());
178
179 sp.ssrc_groups.push_back(
180 cricket::SsrcGroup(cricket::kSimSsrcGroupSemantics, sp.ssrcs));
181 sp.AddFidSsrc(1, 10);
182 sp.AddFidSsrc(2, 20);
183
184 primary_ssrcs.clear();
185 sp.GetPrimarySsrcs(&primary_ssrcs);
186 fid_ssrcs.clear();
187 sp.GetFidSsrcs(primary_ssrcs, &fid_ssrcs);
188 ASSERT_EQ(3u, primary_ssrcs.size());
189 EXPECT_EQ(1u, primary_ssrcs[0]);
190 EXPECT_EQ(2u, primary_ssrcs[1]);
191 EXPECT_EQ(3u, primary_ssrcs[2]);
192 ASSERT_EQ(2u, fid_ssrcs.size());
193 EXPECT_EQ(10u, fid_ssrcs[0]);
194 EXPECT_EQ(20u, fid_ssrcs[1]);
195 }
196
TEST(StreamParams,ToString)197 TEST(StreamParams, ToString) {
198 cricket::StreamParams sp =
199 CreateStreamParamsWithSsrcGroup("XYZ", kSsrcs2, arraysize(kSsrcs2));
200 EXPECT_STREQ("{ssrcs:[1,2];ssrc_groups:{semantics:XYZ;ssrcs:[1,2]};}",
201 sp.ToString().c_str());
202 }
203
204
TEST(StreamParams,TestIsOneSsrcStream_LegacyStream)205 TEST(StreamParams, TestIsOneSsrcStream_LegacyStream) {
206 EXPECT_TRUE(
207 cricket::IsOneSsrcStream(cricket::StreamParams::CreateLegacy(13)));
208 }
209
TEST(StreamParams,TestIsOneSsrcStream_SingleRtxStream)210 TEST(StreamParams, TestIsOneSsrcStream_SingleRtxStream) {
211 cricket::StreamParams stream;
212 stream.add_ssrc(13);
213 EXPECT_TRUE(stream.AddFidSsrc(13, 14));
214 EXPECT_TRUE(cricket::IsOneSsrcStream(stream));
215 }
216
TEST(StreamParams,TestIsOneSsrcStream_SimulcastStream)217 TEST(StreamParams, TestIsOneSsrcStream_SimulcastStream) {
218 EXPECT_FALSE(cricket::IsOneSsrcStream(
219 cricket::CreateSimStreamParams("cname", MAKE_VECTOR(kSsrcs2))));
220 EXPECT_FALSE(cricket::IsOneSsrcStream(
221 cricket::CreateSimStreamParams("cname", MAKE_VECTOR(kSsrcs3))));
222 }
223
TEST(StreamParams,TestIsOneSsrcStream_SimRtxStream)224 TEST(StreamParams, TestIsOneSsrcStream_SimRtxStream) {
225 cricket::StreamParams stream =
226 cricket::CreateSimWithRtxStreamParams("cname",
227 MAKE_VECTOR(kSsrcs3),
228 MAKE_VECTOR(kRtxSsrcs3));
229 EXPECT_FALSE(cricket::IsOneSsrcStream(stream));
230 }
231
TEST(StreamParams,TestIsSimulcastStream_LegacyStream)232 TEST(StreamParams, TestIsSimulcastStream_LegacyStream) {
233 EXPECT_FALSE(
234 cricket::IsSimulcastStream(cricket::StreamParams::CreateLegacy(13)));
235 }
236
TEST(StreamParams,TestIsSimulcastStream_SingleRtxStream)237 TEST(StreamParams, TestIsSimulcastStream_SingleRtxStream) {
238 cricket::StreamParams stream;
239 stream.add_ssrc(13);
240 EXPECT_TRUE(stream.AddFidSsrc(13, 14));
241 EXPECT_FALSE(cricket::IsSimulcastStream(stream));
242 }
243
TEST(StreamParams,TestIsSimulcastStream_SimulcastStream)244 TEST(StreamParams, TestIsSimulcastStream_SimulcastStream) {
245 EXPECT_TRUE(cricket::IsSimulcastStream(
246 cricket::CreateSimStreamParams("cname", MAKE_VECTOR(kSsrcs2))));
247 EXPECT_TRUE(cricket::IsSimulcastStream(
248 cricket::CreateSimStreamParams("cname", MAKE_VECTOR(kSsrcs3))));
249 }
250
TEST(StreamParams,TestIsSimulcastStream_SimRtxStream)251 TEST(StreamParams, TestIsSimulcastStream_SimRtxStream) {
252 cricket::StreamParams stream =
253 cricket::CreateSimWithRtxStreamParams("cname",
254 MAKE_VECTOR(kSsrcs3),
255 MAKE_VECTOR(kRtxSsrcs3));
256 EXPECT_TRUE(cricket::IsSimulcastStream(stream));
257 }
258
TEST(StreamParams,TestIsSimulcastStream_InvalidStreams)259 TEST(StreamParams, TestIsSimulcastStream_InvalidStreams) {
260 // stream1 has extra non-sim, non-fid ssrc.
261 cricket::StreamParams stream1 =
262 cricket::CreateSimWithRtxStreamParams("cname",
263 MAKE_VECTOR(kSsrcs3),
264 MAKE_VECTOR(kRtxSsrcs3));
265 stream1.add_ssrc(25);
266 EXPECT_FALSE(cricket::IsSimulcastStream(stream1));
267
268 // stream2 has invalid fid-group (no primary).
269 cricket::StreamParams stream2;
270 stream2.add_ssrc(13);
271 EXPECT_TRUE(stream2.AddFidSsrc(13, 14));
272 std::remove(stream2.ssrcs.begin(), stream2.ssrcs.end(), 13);
273 EXPECT_FALSE(cricket::IsSimulcastStream(stream2));
274
275 // stream3 has two SIM groups.
276 cricket::StreamParams stream3 =
277 cricket::CreateSimStreamParams("cname", MAKE_VECTOR(kSsrcs2));
278 std::vector<uint32_t> sim_ssrcs = MAKE_VECTOR(kRtxSsrcs3);
279 cricket::SsrcGroup sg(cricket::kSimSsrcGroupSemantics, sim_ssrcs);
280 for (size_t i = 0; i < sim_ssrcs.size(); i++) {
281 stream3.add_ssrc(sim_ssrcs[i]);
282 }
283 stream3.ssrc_groups.push_back(sg);
284 EXPECT_FALSE(cricket::IsSimulcastStream(stream3));
285 }
286