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      1 // libjingle
      2 // Copyright 2010 Google Inc.
      3 //
      4 // Redistribution and use in source and binary forms, with or without
      5 // modification, are permitted provided that the following conditions are met:
      6 //
      7 //  1. Redistributions of source code must retain the above copyright notice,
      8 //     this list of conditions and the following disclaimer.
      9 //  2. Redistributions in binary form must reproduce the above copyright notice,
     10 //     this list of conditions and the following disclaimer in the documentation
     11 //     and/or other materials provided with the distribution.
     12 //  3. The name of the author may not be used to endorse or promote products
     13 //     derived from this software without specific prior written permission.
     14 //
     15 // THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
     16 // WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     17 // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
     18 // EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     19 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     20 // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
     21 // OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     22 // WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
     23 // OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
     24 // ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     25 
     26 #include <string>
     27 
     28 #include "talk/media/base/fakemediaengine.h"
     29 #include "talk/media/base/rtpdump.h"
     30 #include "talk/media/base/testutils.h"
     31 #include "talk/p2p/base/fakesession.h"
     32 #include "talk/session/media/channel.h"
     33 #include "talk/session/media/mediarecorder.h"
     34 #include "webrtc/base/bytebuffer.h"
     35 #include "webrtc/base/fileutils.h"
     36 #include "webrtc/base/gunit.h"
     37 #include "webrtc/base/pathutils.h"
     38 #include "webrtc/base/thread.h"
     39 
     40 namespace cricket {
     41 
     42 rtc::StreamInterface* Open(const std::string& path) {
     43   return rtc::Filesystem::OpenFile(
     44       rtc::Pathname(path), "wb");
     45 }
     46 
     47 /////////////////////////////////////////////////////////////////////////
     48 // Test RtpDumpSink
     49 /////////////////////////////////////////////////////////////////////////
     50 class RtpDumpSinkTest : public testing::Test {
     51  public:
     52   virtual void SetUp() {
     53     EXPECT_TRUE(rtc::Filesystem::GetTemporaryFolder(path_, true, NULL));
     54     path_.SetFilename("sink-test.rtpdump");
     55     sink_.reset(new RtpDumpSink(Open(path_.pathname())));
     56 
     57     for (int i = 0; i < ARRAY_SIZE(rtp_buf_); ++i) {
     58       RtpTestUtility::kTestRawRtpPackets[i].WriteToByteBuffer(
     59           RtpTestUtility::kDefaultSsrc, &rtp_buf_[i]);
     60     }
     61   }
     62 
     63   virtual void TearDown() {
     64     stream_.reset();
     65     EXPECT_TRUE(rtc::Filesystem::DeleteFile(path_));
     66   }
     67 
     68  protected:
     69   void OnRtpPacket(const RawRtpPacket& raw) {
     70     rtc::ByteBuffer buf;
     71     raw.WriteToByteBuffer(RtpTestUtility::kDefaultSsrc, &buf);
     72     sink_->OnPacket(buf.Data(), buf.Length(), false);
     73   }
     74 
     75   rtc::StreamResult ReadPacket(RtpDumpPacket* packet) {
     76     if (!stream_.get()) {
     77       sink_.reset();  // This will close the file. So we can read it.
     78       stream_.reset(rtc::Filesystem::OpenFile(path_, "rb"));
     79       reader_.reset(new RtpDumpReader(stream_.get()));
     80     }
     81     return reader_->ReadPacket(packet);
     82   }
     83 
     84   rtc::Pathname path_;
     85   rtc::scoped_ptr<RtpDumpSink> sink_;
     86   rtc::ByteBuffer rtp_buf_[3];
     87   rtc::scoped_ptr<rtc::StreamInterface> stream_;
     88   rtc::scoped_ptr<RtpDumpReader> reader_;
     89 };
     90 
     91 TEST_F(RtpDumpSinkTest, TestRtpDumpSink) {
     92   // By default, the sink is disabled. The 1st packet is not written.
     93   EXPECT_FALSE(sink_->IsEnabled());
     94   sink_->set_packet_filter(PF_ALL);
     95   OnRtpPacket(RtpTestUtility::kTestRawRtpPackets[0]);
     96 
     97   // Enable the sink. The 2nd packet is written.
     98   EXPECT_TRUE(sink_->Enable(true));
     99   EXPECT_TRUE(sink_->IsEnabled());
    100   EXPECT_TRUE(rtc::Filesystem::IsFile(path_.pathname()));
    101   OnRtpPacket(RtpTestUtility::kTestRawRtpPackets[1]);
    102 
    103   // Disable the sink. The 3rd packet is not written.
    104   EXPECT_TRUE(sink_->Enable(false));
    105   EXPECT_FALSE(sink_->IsEnabled());
    106   OnRtpPacket(RtpTestUtility::kTestRawRtpPackets[2]);
    107 
    108   // Read the recorded file and verify it contains only the 2nd packet.
    109   RtpDumpPacket packet;
    110   EXPECT_EQ(rtc::SR_SUCCESS, ReadPacket(&packet));
    111   EXPECT_TRUE(RtpTestUtility::VerifyPacket(
    112       &packet, &RtpTestUtility::kTestRawRtpPackets[1], false));
    113   EXPECT_EQ(rtc::SR_EOS, ReadPacket(&packet));
    114 }
    115 
    116 TEST_F(RtpDumpSinkTest, TestRtpDumpSinkMaxSize) {
    117   EXPECT_TRUE(sink_->Enable(true));
    118   sink_->set_packet_filter(PF_ALL);
    119   sink_->SetMaxSize(strlen(RtpDumpFileHeader::kFirstLine) +
    120                     RtpDumpFileHeader::kHeaderLength +
    121                     RtpDumpPacket::kHeaderLength +
    122                     RtpTestUtility::kTestRawRtpPackets[0].size());
    123   OnRtpPacket(RtpTestUtility::kTestRawRtpPackets[0]);
    124 
    125   // Exceed the limit size: the 2nd and 3rd packets are not written.
    126   OnRtpPacket(RtpTestUtility::kTestRawRtpPackets[1]);
    127   OnRtpPacket(RtpTestUtility::kTestRawRtpPackets[2]);
    128 
    129   // Read the recorded file and verify that it contains only the first packet.
    130   RtpDumpPacket packet;
    131   EXPECT_EQ(rtc::SR_SUCCESS, ReadPacket(&packet));
    132   EXPECT_TRUE(RtpTestUtility::VerifyPacket(
    133       &packet, &RtpTestUtility::kTestRawRtpPackets[0], false));
    134   EXPECT_EQ(rtc::SR_EOS, ReadPacket(&packet));
    135 }
    136 
    137 TEST_F(RtpDumpSinkTest, TestRtpDumpSinkFilter) {
    138   // The default filter is PF_NONE.
    139   EXPECT_EQ(PF_NONE, sink_->packet_filter());
    140 
    141   // Set to PF_RTPHEADER before enable.
    142   sink_->set_packet_filter(PF_RTPHEADER);
    143   EXPECT_EQ(PF_RTPHEADER, sink_->packet_filter());
    144   EXPECT_TRUE(sink_->Enable(true));
    145   // We dump only the header of the first packet.
    146   OnRtpPacket(RtpTestUtility::kTestRawRtpPackets[0]);
    147 
    148   // Set the filter to PF_RTPPACKET. We dump all the second packet.
    149   sink_->set_packet_filter(PF_RTPPACKET);
    150   EXPECT_EQ(PF_RTPPACKET, sink_->packet_filter());
    151   OnRtpPacket(RtpTestUtility::kTestRawRtpPackets[1]);
    152 
    153   // Set the filter to PF_NONE. We do not dump the third packet.
    154   sink_->set_packet_filter(PF_NONE);
    155   EXPECT_EQ(PF_NONE, sink_->packet_filter());
    156   OnRtpPacket(RtpTestUtility::kTestRawRtpPackets[2]);
    157 
    158   // Read the recorded file and verify the header of the first packet and
    159   // the whole packet for the second packet.
    160   RtpDumpPacket packet;
    161   EXPECT_EQ(rtc::SR_SUCCESS, ReadPacket(&packet));
    162   EXPECT_TRUE(RtpTestUtility::VerifyPacket(
    163       &packet, &RtpTestUtility::kTestRawRtpPackets[0], true));
    164   EXPECT_EQ(rtc::SR_SUCCESS, ReadPacket(&packet));
    165   EXPECT_TRUE(RtpTestUtility::VerifyPacket(
    166       &packet, &RtpTestUtility::kTestRawRtpPackets[1], false));
    167   EXPECT_EQ(rtc::SR_EOS, ReadPacket(&packet));
    168 }
    169 
    170 /////////////////////////////////////////////////////////////////////////
    171 // Test MediaRecorder
    172 /////////////////////////////////////////////////////////////////////////
    173 void TestMediaRecorder(BaseChannel* channel,
    174                        FakeVideoMediaChannel* video_media_channel,
    175                        int filter) {
    176   // Create media recorder.
    177   rtc::scoped_ptr<MediaRecorder> recorder(new MediaRecorder);
    178   // Fail to EnableChannel before AddChannel.
    179   EXPECT_FALSE(recorder->EnableChannel(channel, true, true, SINK_PRE_CRYPTO));
    180   EXPECT_FALSE(channel->HasSendSinks(SINK_PRE_CRYPTO));
    181   EXPECT_FALSE(channel->HasRecvSinks(SINK_PRE_CRYPTO));
    182   EXPECT_FALSE(channel->HasSendSinks(SINK_POST_CRYPTO));
    183   EXPECT_FALSE(channel->HasRecvSinks(SINK_POST_CRYPTO));
    184 
    185   // Add the channel to the recorder.
    186   rtc::Pathname path;
    187   EXPECT_TRUE(rtc::Filesystem::GetTemporaryFolder(path, true, NULL));
    188   path.SetFilename("send.rtpdump");
    189   std::string send_file = path.pathname();
    190   path.SetFilename("recv.rtpdump");
    191   std::string recv_file = path.pathname();
    192   if (video_media_channel) {
    193     EXPECT_TRUE(recorder->AddChannel(static_cast<VideoChannel*>(channel),
    194                                      Open(send_file), Open(recv_file), filter));
    195   } else {
    196     EXPECT_TRUE(recorder->AddChannel(static_cast<VoiceChannel*>(channel),
    197                                      Open(send_file), Open(recv_file), filter));
    198   }
    199 
    200   // Enable recording only the sent media.
    201   EXPECT_TRUE(recorder->EnableChannel(channel, true, false, SINK_PRE_CRYPTO));
    202   EXPECT_TRUE(channel->HasSendSinks(SINK_PRE_CRYPTO));
    203   EXPECT_FALSE(channel->HasRecvSinks(SINK_POST_CRYPTO));
    204   EXPECT_FALSE(channel->HasSendSinks(SINK_POST_CRYPTO));
    205   EXPECT_FALSE(channel->HasRecvSinks(SINK_POST_CRYPTO));
    206   if (video_media_channel) {
    207     EXPECT_TRUE_WAIT(video_media_channel->sent_intra_frame(), 100);
    208   }
    209 
    210   // Enable recording only the received meida.
    211   EXPECT_TRUE(recorder->EnableChannel(channel, false, true, SINK_PRE_CRYPTO));
    212   EXPECT_FALSE(channel->HasSendSinks(SINK_PRE_CRYPTO));
    213   EXPECT_TRUE(channel->HasRecvSinks(SINK_PRE_CRYPTO));
    214   if (video_media_channel) {
    215     EXPECT_TRUE(video_media_channel->requested_intra_frame());
    216   }
    217 
    218   // Enable recording both the sent and the received video.
    219   EXPECT_TRUE(recorder->EnableChannel(channel, true, true, SINK_PRE_CRYPTO));
    220   EXPECT_TRUE(channel->HasSendSinks(SINK_PRE_CRYPTO));
    221   EXPECT_TRUE(channel->HasRecvSinks(SINK_PRE_CRYPTO));
    222 
    223   // Enable recording only headers.
    224   if (video_media_channel) {
    225     video_media_channel->set_sent_intra_frame(false);
    226     video_media_channel->set_requested_intra_frame(false);
    227   }
    228   EXPECT_TRUE(recorder->EnableChannel(channel, true, true, SINK_PRE_CRYPTO));
    229   EXPECT_TRUE(channel->HasSendSinks(SINK_PRE_CRYPTO));
    230   EXPECT_TRUE(channel->HasRecvSinks(SINK_PRE_CRYPTO));
    231   if (video_media_channel) {
    232     if ((filter & PF_RTPPACKET) == PF_RTPPACKET) {
    233       // If record the whole RTP packet, trigers FIR.
    234       EXPECT_TRUE(video_media_channel->requested_intra_frame());
    235       EXPECT_TRUE(video_media_channel->sent_intra_frame());
    236     } else {
    237       // If record only the RTP header, does not triger FIR.
    238       EXPECT_FALSE(video_media_channel->requested_intra_frame());
    239       EXPECT_FALSE(video_media_channel->sent_intra_frame());
    240     }
    241   }
    242 
    243   // Remove the voice channel from the recorder.
    244   recorder->RemoveChannel(channel, SINK_PRE_CRYPTO);
    245   EXPECT_FALSE(channel->HasSendSinks(SINK_PRE_CRYPTO));
    246   EXPECT_FALSE(channel->HasRecvSinks(SINK_PRE_CRYPTO));
    247 
    248   // Delete all files.
    249   recorder.reset();
    250   EXPECT_TRUE(rtc::Filesystem::DeleteFile(send_file));
    251   EXPECT_TRUE(rtc::Filesystem::DeleteFile(recv_file));
    252 }
    253 
    254 // Fisrt start recording header and then start recording media. Verify that
    255 // differnt files are created for header and media.
    256 void TestRecordHeaderAndMedia(BaseChannel* channel,
    257                               FakeVideoMediaChannel* video_media_channel) {
    258   // Create RTP header recorder.
    259   rtc::scoped_ptr<MediaRecorder> header_recorder(new MediaRecorder);
    260 
    261   rtc::Pathname path;
    262   EXPECT_TRUE(rtc::Filesystem::GetTemporaryFolder(path, true, NULL));
    263   path.SetFilename("send-header.rtpdump");
    264   std::string send_header_file = path.pathname();
    265   path.SetFilename("recv-header.rtpdump");
    266   std::string recv_header_file = path.pathname();
    267   if (video_media_channel) {
    268     EXPECT_TRUE(header_recorder->AddChannel(
    269         static_cast<VideoChannel*>(channel),
    270         Open(send_header_file), Open(recv_header_file), PF_RTPHEADER));
    271   } else {
    272     EXPECT_TRUE(header_recorder->AddChannel(
    273         static_cast<VoiceChannel*>(channel),
    274         Open(send_header_file), Open(recv_header_file), PF_RTPHEADER));
    275   }
    276 
    277   // Enable recording both sent and received.
    278   EXPECT_TRUE(
    279       header_recorder->EnableChannel(channel, true, true, SINK_POST_CRYPTO));
    280   EXPECT_TRUE(channel->HasSendSinks(SINK_POST_CRYPTO));
    281   EXPECT_TRUE(channel->HasRecvSinks(SINK_POST_CRYPTO));
    282   EXPECT_FALSE(channel->HasSendSinks(SINK_PRE_CRYPTO));
    283   EXPECT_FALSE(channel->HasRecvSinks(SINK_PRE_CRYPTO));
    284   if (video_media_channel) {
    285     EXPECT_FALSE(video_media_channel->sent_intra_frame());
    286     EXPECT_FALSE(video_media_channel->requested_intra_frame());
    287   }
    288 
    289   // Verify that header files are created.
    290   EXPECT_TRUE(rtc::Filesystem::IsFile(send_header_file));
    291   EXPECT_TRUE(rtc::Filesystem::IsFile(recv_header_file));
    292 
    293   // Create RTP header recorder.
    294   rtc::scoped_ptr<MediaRecorder> recorder(new MediaRecorder);
    295   path.SetFilename("send.rtpdump");
    296   std::string send_file = path.pathname();
    297   path.SetFilename("recv.rtpdump");
    298   std::string recv_file = path.pathname();
    299   if (video_media_channel) {
    300     EXPECT_TRUE(recorder->AddChannel(
    301         static_cast<VideoChannel*>(channel),
    302         Open(send_file), Open(recv_file), PF_RTPPACKET));
    303   } else {
    304     EXPECT_TRUE(recorder->AddChannel(
    305         static_cast<VoiceChannel*>(channel),
    306         Open(send_file), Open(recv_file), PF_RTPPACKET));
    307   }
    308 
    309   // Enable recording both sent and received.
    310   EXPECT_TRUE(recorder->EnableChannel(channel, true, true, SINK_PRE_CRYPTO));
    311   EXPECT_TRUE(channel->HasSendSinks(SINK_POST_CRYPTO));
    312   EXPECT_TRUE(channel->HasRecvSinks(SINK_POST_CRYPTO));
    313   EXPECT_TRUE(channel->HasSendSinks(SINK_PRE_CRYPTO));
    314   EXPECT_TRUE(channel->HasRecvSinks(SINK_PRE_CRYPTO));
    315   if (video_media_channel) {
    316     EXPECT_TRUE_WAIT(video_media_channel->sent_intra_frame(), 100);
    317     EXPECT_TRUE(video_media_channel->requested_intra_frame());
    318   }
    319 
    320   // Verify that media files are created.
    321   EXPECT_TRUE(rtc::Filesystem::IsFile(send_file));
    322   EXPECT_TRUE(rtc::Filesystem::IsFile(recv_file));
    323 
    324   // Delete all files.
    325   header_recorder.reset();
    326   recorder.reset();
    327   EXPECT_TRUE(rtc::Filesystem::DeleteFile(send_header_file));
    328   EXPECT_TRUE(rtc::Filesystem::DeleteFile(recv_header_file));
    329   EXPECT_TRUE(rtc::Filesystem::DeleteFile(send_file));
    330   EXPECT_TRUE(rtc::Filesystem::DeleteFile(recv_file));
    331 }
    332 
    333 TEST(MediaRecorderTest, TestMediaRecorderVoiceChannel) {
    334   // Create the voice channel.
    335   FakeSession session(true);
    336   FakeMediaEngine media_engine;
    337   VoiceChannel channel(rtc::Thread::Current(), &media_engine,
    338                        new FakeVoiceMediaChannel(NULL), &session, "", false);
    339   EXPECT_TRUE(channel.Init());
    340   TestMediaRecorder(&channel, NULL, PF_RTPPACKET);
    341   TestMediaRecorder(&channel, NULL, PF_RTPHEADER);
    342   TestRecordHeaderAndMedia(&channel, NULL);
    343 }
    344 
    345 TEST(MediaRecorderTest, TestMediaRecorderVideoChannel) {
    346   // Create the video channel.
    347   FakeSession session(true);
    348   FakeMediaEngine media_engine;
    349   FakeVideoMediaChannel* media_channel = new FakeVideoMediaChannel(NULL);
    350   VideoChannel channel(rtc::Thread::Current(), &media_engine,
    351                        media_channel, &session, "", false, NULL);
    352   EXPECT_TRUE(channel.Init());
    353   TestMediaRecorder(&channel, media_channel, PF_RTPPACKET);
    354   TestMediaRecorder(&channel, media_channel, PF_RTPHEADER);
    355   TestRecordHeaderAndMedia(&channel, media_channel);
    356 }
    357 
    358 }  // namespace cricket
    359