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| 1 /* | |
| 2 * libjingle | |
| 3 * Copyright 2004 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/testutils.h" | |
| 29 | |
| 30 #include <math.h> | |
| 31 #include <algorithm> | |
| 32 | |
| 33 #include "talk/media/base/executablehelpers.h" | |
| 34 #include "talk/media/base/rtpdump.h" | |
| 35 #include "talk/media/base/videocapturer.h" | |
| 36 #include "talk/media/base/videoframe.h" | |
| 37 #include "webrtc/base/bytebuffer.h" | |
| 38 #include "webrtc/base/fileutils.h" | |
| 39 #include "webrtc/base/gunit.h" | |
| 40 #include "webrtc/base/pathutils.h" | |
| 41 #include "webrtc/base/stream.h" | |
| 42 #include "webrtc/base/stringutils.h" | |
| 43 #include "webrtc/base/testutils.h" | |
| 44 | |
| 45 namespace cricket { | |
| 46 | |
| 47 ///////////////////////////////////////////////////////////////////////// | |
| 48 // Implementation of RawRtpPacket | |
| 49 ///////////////////////////////////////////////////////////////////////// | |
| 50 void RawRtpPacket::WriteToByteBuffer(uint32_t in_ssrc, | |
| 51 rtc::ByteBuffer* buf) const { | |
| 52 if (!buf) return; | |
| 53 | |
| 54 buf->WriteUInt8(ver_to_cc); | |
| 55 buf->WriteUInt8(m_to_pt); | |
| 56 buf->WriteUInt16(sequence_number); | |
| 57 buf->WriteUInt32(timestamp); | |
| 58 buf->WriteUInt32(in_ssrc); | |
| 59 buf->WriteBytes(payload, sizeof(payload)); | |
| 60 } | |
| 61 | |
| 62 bool RawRtpPacket::ReadFromByteBuffer(rtc::ByteBuffer* buf) { | |
| 63 if (!buf) return false; | |
| 64 | |
| 65 bool ret = true; | |
| 66 ret &= buf->ReadUInt8(&ver_to_cc); | |
| 67 ret &= buf->ReadUInt8(&m_to_pt); | |
| 68 ret &= buf->ReadUInt16(&sequence_number); | |
| 69 ret &= buf->ReadUInt32(×tamp); | |
| 70 ret &= buf->ReadUInt32(&ssrc); | |
| 71 ret &= buf->ReadBytes(payload, sizeof(payload)); | |
| 72 return ret; | |
| 73 } | |
| 74 | |
| 75 bool RawRtpPacket::SameExceptSeqNumTimestampSsrc(const RawRtpPacket& packet, | |
| 76 uint16_t seq, | |
| 77 uint32_t ts, | |
| 78 uint32_t ssc) const { | |
| 79 return sequence_number == seq && | |
| 80 timestamp == ts && | |
| 81 ver_to_cc == packet.ver_to_cc && | |
| 82 m_to_pt == packet.m_to_pt && | |
| 83 ssrc == ssc && | |
| 84 0 == memcmp(payload, packet.payload, sizeof(payload)); | |
| 85 } | |
| 86 | |
| 87 ///////////////////////////////////////////////////////////////////////// | |
| 88 // Implementation of RawRtcpPacket | |
| 89 ///////////////////////////////////////////////////////////////////////// | |
| 90 void RawRtcpPacket::WriteToByteBuffer(rtc::ByteBuffer *buf) const { | |
| 91 if (!buf) return; | |
| 92 | |
| 93 buf->WriteUInt8(ver_to_count); | |
| 94 buf->WriteUInt8(type); | |
| 95 buf->WriteUInt16(length); | |
| 96 buf->WriteBytes(payload, sizeof(payload)); | |
| 97 } | |
| 98 | |
| 99 bool RawRtcpPacket::ReadFromByteBuffer(rtc::ByteBuffer* buf) { | |
| 100 if (!buf) return false; | |
| 101 | |
| 102 bool ret = true; | |
| 103 ret &= buf->ReadUInt8(&ver_to_count); | |
| 104 ret &= buf->ReadUInt8(&type); | |
| 105 ret &= buf->ReadUInt16(&length); | |
| 106 ret &= buf->ReadBytes(payload, sizeof(payload)); | |
| 107 return ret; | |
| 108 } | |
| 109 | |
| 110 bool RawRtcpPacket::EqualsTo(const RawRtcpPacket& packet) const { | |
| 111 return ver_to_count == packet.ver_to_count && | |
| 112 type == packet.type && | |
| 113 length == packet.length && | |
| 114 0 == memcmp(payload, packet.payload, sizeof(payload)); | |
| 115 } | |
| 116 | |
| 117 ///////////////////////////////////////////////////////////////////////// | |
| 118 // Implementation of class RtpTestUtility | |
| 119 ///////////////////////////////////////////////////////////////////////// | |
| 120 const RawRtpPacket RtpTestUtility::kTestRawRtpPackets[] = { | |
| 121 {0x80, 0, 0, 0, RtpTestUtility::kDefaultSsrc, "RTP frame 0"}, | |
| 122 {0x80, 0, 1, 30, RtpTestUtility::kDefaultSsrc, "RTP frame 1"}, | |
| 123 {0x80, 0, 2, 30, RtpTestUtility::kDefaultSsrc, "RTP frame 1"}, | |
| 124 {0x80, 0, 3, 60, RtpTestUtility::kDefaultSsrc, "RTP frame 2"} | |
| 125 }; | |
| 126 const RawRtcpPacket RtpTestUtility::kTestRawRtcpPackets[] = { | |
| 127 // The Version is 2, the Length is 2, and the payload has 8 bytes. | |
| 128 {0x80, 0, 2, "RTCP0000"}, | |
| 129 {0x80, 0, 2, "RTCP0001"}, | |
| 130 {0x80, 0, 2, "RTCP0002"}, | |
| 131 {0x80, 0, 2, "RTCP0003"}, | |
| 132 }; | |
| 133 | |
| 134 size_t RtpTestUtility::GetTestPacketCount() { | |
| 135 return std::min(arraysize(kTestRawRtpPackets), | |
| 136 arraysize(kTestRawRtcpPackets)); | |
| 137 } | |
| 138 | |
| 139 bool RtpTestUtility::WriteTestPackets(size_t count, | |
| 140 bool rtcp, | |
| 141 uint32_t rtp_ssrc, | |
| 142 RtpDumpWriter* writer) { | |
| 143 if (!writer || count > GetTestPacketCount()) return false; | |
| 144 | |
| 145 bool result = true; | |
| 146 uint32_t elapsed_time_ms = 0; | |
| 147 for (size_t i = 0; i < count && result; ++i) { | |
| 148 rtc::ByteBuffer buf; | |
| 149 if (rtcp) { | |
| 150 kTestRawRtcpPackets[i].WriteToByteBuffer(&buf); | |
| 151 } else { | |
| 152 kTestRawRtpPackets[i].WriteToByteBuffer(rtp_ssrc, &buf); | |
| 153 } | |
| 154 | |
| 155 RtpDumpPacket dump_packet(buf.Data(), buf.Length(), elapsed_time_ms, rtcp); | |
| 156 elapsed_time_ms += kElapsedTimeInterval; | |
| 157 result &= (rtc::SR_SUCCESS == writer->WritePacket(dump_packet)); | |
| 158 } | |
| 159 return result; | |
| 160 } | |
| 161 | |
| 162 bool RtpTestUtility::VerifyTestPacketsFromStream(size_t count, | |
| 163 rtc::StreamInterface* stream, | |
| 164 uint32_t ssrc) { | |
| 165 if (!stream) return false; | |
| 166 | |
| 167 uint32_t prev_elapsed_time = 0; | |
| 168 bool result = true; | |
| 169 stream->Rewind(); | |
| 170 RtpDumpLoopReader reader(stream); | |
| 171 for (size_t i = 0; i < count && result; ++i) { | |
| 172 // Which loop and which index in the loop are we reading now. | |
| 173 size_t loop = i / GetTestPacketCount(); | |
| 174 size_t index = i % GetTestPacketCount(); | |
| 175 | |
| 176 RtpDumpPacket packet; | |
| 177 result &= (rtc::SR_SUCCESS == reader.ReadPacket(&packet)); | |
| 178 // Check the elapsed time of the dump packet. | |
| 179 result &= (packet.elapsed_time >= prev_elapsed_time); | |
| 180 prev_elapsed_time = packet.elapsed_time; | |
| 181 | |
| 182 // Check the RTP or RTCP packet. | |
| 183 rtc::ByteBuffer buf(reinterpret_cast<const char*>(&packet.data[0]), | |
| 184 packet.data.size()); | |
| 185 if (packet.is_rtcp()) { | |
| 186 // RTCP packet. | |
| 187 RawRtcpPacket rtcp_packet; | |
| 188 result &= rtcp_packet.ReadFromByteBuffer(&buf); | |
| 189 result &= rtcp_packet.EqualsTo(kTestRawRtcpPackets[index]); | |
| 190 } else { | |
| 191 // RTP packet. | |
| 192 RawRtpPacket rtp_packet; | |
| 193 result &= rtp_packet.ReadFromByteBuffer(&buf); | |
| 194 result &= rtp_packet.SameExceptSeqNumTimestampSsrc( | |
| 195 kTestRawRtpPackets[index], | |
| 196 static_cast<uint16_t>(kTestRawRtpPackets[index].sequence_number + | |
| 197 loop * GetTestPacketCount()), | |
| 198 static_cast<uint32_t>(kTestRawRtpPackets[index].timestamp + | |
| 199 loop * kRtpTimestampIncrease), | |
| 200 ssrc); | |
| 201 } | |
| 202 } | |
| 203 | |
| 204 stream->Rewind(); | |
| 205 return result; | |
| 206 } | |
| 207 | |
| 208 bool RtpTestUtility::VerifyPacket(const RtpDumpPacket* dump, | |
| 209 const RawRtpPacket* raw, | |
| 210 bool header_only) { | |
| 211 if (!dump || !raw) return false; | |
| 212 | |
| 213 rtc::ByteBuffer buf; | |
| 214 raw->WriteToByteBuffer(RtpTestUtility::kDefaultSsrc, &buf); | |
| 215 | |
| 216 if (header_only) { | |
| 217 size_t header_len = 0; | |
| 218 dump->GetRtpHeaderLen(&header_len); | |
| 219 return header_len == dump->data.size() && | |
| 220 buf.Length() > dump->data.size() && | |
| 221 0 == memcmp(buf.Data(), &dump->data[0], dump->data.size()); | |
| 222 } else { | |
| 223 return buf.Length() == dump->data.size() && | |
| 224 0 == memcmp(buf.Data(), &dump->data[0], dump->data.size()); | |
| 225 } | |
| 226 } | |
| 227 | |
| 228 // Implementation of VideoCaptureListener. | |
| 229 VideoCapturerListener::VideoCapturerListener(VideoCapturer* capturer) | |
| 230 : last_capture_state_(CS_STARTING), | |
| 231 frame_count_(0), | |
| 232 frame_fourcc_(0), | |
| 233 frame_width_(0), | |
| 234 frame_height_(0), | |
| 235 frame_size_(0), | |
| 236 resolution_changed_(false) { | |
| 237 capturer->SignalStateChange.connect(this, | |
| 238 &VideoCapturerListener::OnStateChange); | |
| 239 capturer->SignalFrameCaptured.connect(this, | |
| 240 &VideoCapturerListener::OnFrameCaptured); | |
| 241 } | |
| 242 | |
| 243 void VideoCapturerListener::OnStateChange(VideoCapturer* capturer, | |
| 244 CaptureState result) { | |
| 245 last_capture_state_ = result; | |
| 246 } | |
| 247 | |
| 248 void VideoCapturerListener::OnFrameCaptured(VideoCapturer* capturer, | |
| 249 const CapturedFrame* frame) { | |
| 250 ++frame_count_; | |
| 251 if (1 == frame_count_) { | |
| 252 frame_fourcc_ = frame->fourcc; | |
| 253 frame_width_ = frame->width; | |
| 254 frame_height_ = frame->height; | |
| 255 frame_size_ = frame->data_size; | |
| 256 } else if (frame_width_ != frame->width || frame_height_ != frame->height) { | |
| 257 resolution_changed_ = true; | |
| 258 } | |
| 259 } | |
| 260 | |
| 261 // Returns the absolute path to a file in the testdata/ directory. | |
| 262 std::string GetTestFilePath(const std::string& filename) { | |
| 263 // Locate test data directory. | |
| 264 #ifdef ENABLE_WEBRTC | |
| 265 rtc::Pathname path = rtc::GetExecutablePath(); | |
| 266 EXPECT_FALSE(path.empty()); | |
| 267 path.AppendPathname("../../talk/"); | |
| 268 #else | |
| 269 rtc::Pathname path = testing::GetTalkDirectory(); | |
| 270 EXPECT_FALSE(path.empty()); // must be run from inside "talk" | |
| 271 #endif | |
| 272 path.AppendFolder("media/testdata/"); | |
| 273 path.SetFilename(filename); | |
| 274 return path.pathname(); | |
| 275 } | |
| 276 | |
| 277 // Loads the image with the specified prefix and size into |out|. | |
| 278 bool LoadPlanarYuvTestImage(const std::string& prefix, | |
| 279 int width, | |
| 280 int height, | |
| 281 uint8_t* out) { | |
| 282 std::stringstream ss; | |
| 283 ss << prefix << "." << width << "x" << height << "_P420.yuv"; | |
| 284 | |
| 285 rtc::scoped_ptr<rtc::FileStream> stream( | |
| 286 rtc::Filesystem::OpenFile(rtc::Pathname( | |
| 287 GetTestFilePath(ss.str())), "rb")); | |
| 288 if (!stream) { | |
| 289 return false; | |
| 290 } | |
| 291 | |
| 292 rtc::StreamResult res = | |
| 293 stream->ReadAll(out, I420_SIZE(width, height), NULL, NULL); | |
| 294 return (res == rtc::SR_SUCCESS); | |
| 295 } | |
| 296 | |
| 297 // Dumps the YUV image out to a file, for visual inspection. | |
| 298 // PYUV tool can be used to view dump files. | |
| 299 void DumpPlanarYuvTestImage(const std::string& prefix, | |
| 300 const uint8_t* img, | |
| 301 int w, | |
| 302 int h) { | |
| 303 rtc::FileStream fs; | |
| 304 char filename[256]; | |
| 305 rtc::sprintfn(filename, sizeof(filename), "%s.%dx%d_P420.yuv", | |
| 306 prefix.c_str(), w, h); | |
| 307 fs.Open(filename, "wb", NULL); | |
| 308 fs.Write(img, I420_SIZE(w, h), NULL, NULL); | |
| 309 } | |
| 310 | |
| 311 // Dumps the ARGB image out to a file, for visual inspection. | |
| 312 // ffplay tool can be used to view dump files. | |
| 313 void DumpPlanarArgbTestImage(const std::string& prefix, | |
| 314 const uint8_t* img, | |
| 315 int w, | |
| 316 int h) { | |
| 317 rtc::FileStream fs; | |
| 318 char filename[256]; | |
| 319 rtc::sprintfn(filename, sizeof(filename), "%s.%dx%d_ARGB.raw", | |
| 320 prefix.c_str(), w, h); | |
| 321 fs.Open(filename, "wb", NULL); | |
| 322 fs.Write(img, ARGB_SIZE(w, h), NULL, NULL); | |
| 323 } | |
| 324 | |
| 325 bool VideoFrameEqual(const VideoFrame* frame0, const VideoFrame* frame1) { | |
| 326 const uint8_t* y0 = frame0->GetYPlane(); | |
| 327 const uint8_t* u0 = frame0->GetUPlane(); | |
| 328 const uint8_t* v0 = frame0->GetVPlane(); | |
| 329 const uint8_t* y1 = frame1->GetYPlane(); | |
| 330 const uint8_t* u1 = frame1->GetUPlane(); | |
| 331 const uint8_t* v1 = frame1->GetVPlane(); | |
| 332 | |
| 333 for (size_t i = 0; i < frame0->GetHeight(); ++i) { | |
| 334 if (0 != memcmp(y0, y1, frame0->GetWidth())) { | |
| 335 return false; | |
| 336 } | |
| 337 y0 += frame0->GetYPitch(); | |
| 338 y1 += frame1->GetYPitch(); | |
| 339 } | |
| 340 | |
| 341 for (size_t i = 0; i < frame0->GetChromaHeight(); ++i) { | |
| 342 if (0 != memcmp(u0, u1, frame0->GetChromaWidth())) { | |
| 343 return false; | |
| 344 } | |
| 345 if (0 != memcmp(v0, v1, frame0->GetChromaWidth())) { | |
| 346 return false; | |
| 347 } | |
| 348 u0 += frame0->GetUPitch(); | |
| 349 v0 += frame0->GetVPitch(); | |
| 350 u1 += frame1->GetUPitch(); | |
| 351 v1 += frame1->GetVPitch(); | |
| 352 } | |
| 353 | |
| 354 return true; | |
| 355 } | |
| 356 | |
| 357 cricket::StreamParams CreateSimStreamParams( | |
| 358 const std::string& cname, | |
| 359 const std::vector<uint32_t>& ssrcs) { | |
| 360 cricket::StreamParams sp; | |
| 361 cricket::SsrcGroup sg(cricket::kSimSsrcGroupSemantics, ssrcs); | |
| 362 sp.ssrcs = ssrcs; | |
| 363 sp.ssrc_groups.push_back(sg); | |
| 364 sp.cname = cname; | |
| 365 return sp; | |
| 366 } | |
| 367 | |
| 368 // There should be an rtx_ssrc per ssrc. | |
| 369 cricket::StreamParams CreateSimWithRtxStreamParams( | |
| 370 const std::string& cname, | |
| 371 const std::vector<uint32_t>& ssrcs, | |
| 372 const std::vector<uint32_t>& rtx_ssrcs) { | |
| 373 cricket::StreamParams sp = CreateSimStreamParams(cname, ssrcs); | |
| 374 for (size_t i = 0; i < ssrcs.size(); ++i) { | |
| 375 sp.ssrcs.push_back(rtx_ssrcs[i]); | |
| 376 std::vector<uint32_t> fid_ssrcs; | |
| 377 fid_ssrcs.push_back(ssrcs[i]); | |
| 378 fid_ssrcs.push_back(rtx_ssrcs[i]); | |
| 379 cricket::SsrcGroup fid_group(cricket::kFidSsrcGroupSemantics, fid_ssrcs); | |
| 380 sp.ssrc_groups.push_back(fid_group); | |
| 381 } | |
| 382 return sp; | |
| 383 } | |
| 384 | |
| 385 } // namespace cricket | |
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