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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 <stdio.h>
     29 
     30 #include <string>
     31 #include <vector>
     32 
     33 #include "talk/media/base/testutils.h"
     34 #include "talk/media/devices/filevideocapturer.h"
     35 #include "webrtc/base/gunit.h"
     36 #include "webrtc/base/logging.h"
     37 #include "webrtc/base/thread.h"
     38 
     39 namespace {
     40 
     41 class FileVideoCapturerTest : public testing::Test {
     42  public:
     43   virtual void SetUp() {
     44     capturer_.reset(new cricket::FileVideoCapturer);
     45   }
     46 
     47   bool OpenFile(const std::string& filename) {
     48     return capturer_->Init(cricket::GetTestFilePath(filename));
     49   }
     50 
     51  protected:
     52   class VideoCapturerListener : public sigslot::has_slots<> {
     53    public:
     54     VideoCapturerListener()
     55         : frame_count_(0),
     56           frame_width_(0),
     57           frame_height_(0),
     58           resolution_changed_(false) {
     59     }
     60 
     61     void OnFrameCaptured(cricket::VideoCapturer* capturer,
     62                          const cricket::CapturedFrame* frame) {
     63       ++frame_count_;
     64       if (1 == frame_count_) {
     65         frame_width_ = frame->width;
     66         frame_height_ = frame->height;
     67       } else if (frame_width_ != frame->width ||
     68           frame_height_ != frame->height) {
     69         resolution_changed_ = true;
     70       }
     71     }
     72 
     73     int frame_count() const { return frame_count_; }
     74     int frame_width() const { return frame_width_; }
     75     int frame_height() const { return frame_height_; }
     76     bool resolution_changed() const { return resolution_changed_; }
     77 
     78    private:
     79     int frame_count_;
     80     int frame_width_;
     81     int frame_height_;
     82     bool resolution_changed_;
     83   };
     84 
     85   rtc::scoped_ptr<cricket::FileVideoCapturer> capturer_;
     86   cricket::VideoFormat capture_format_;
     87 };
     88 
     89 TEST_F(FileVideoCapturerTest, TestNotOpened) {
     90   EXPECT_EQ("", capturer_->GetId());
     91   EXPECT_TRUE(capturer_->GetSupportedFormats()->empty());
     92   EXPECT_EQ(NULL, capturer_->GetCaptureFormat());
     93   EXPECT_FALSE(capturer_->IsRunning());
     94 }
     95 
     96 TEST_F(FileVideoCapturerTest, TestInvalidOpen) {
     97   EXPECT_FALSE(OpenFile("NotmeNotme"));
     98 }
     99 
    100 TEST_F(FileVideoCapturerTest, TestOpen) {
    101   EXPECT_TRUE(OpenFile("captured-320x240-2s-48.frames"));
    102   EXPECT_NE("", capturer_->GetId());
    103   EXPECT_TRUE(NULL != capturer_->GetSupportedFormats());
    104   EXPECT_EQ(1U, capturer_->GetSupportedFormats()->size());
    105   EXPECT_EQ(NULL, capturer_->GetCaptureFormat());  // not started yet
    106   EXPECT_FALSE(capturer_->IsRunning());
    107 }
    108 
    109 TEST_F(FileVideoCapturerTest, TestLargeSmallDesiredFormat) {
    110   EXPECT_TRUE(OpenFile("captured-320x240-2s-48.frames"));
    111   // desired format with large resolution.
    112   cricket::VideoFormat desired(
    113       3200, 2400, cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_ANY);
    114   EXPECT_TRUE(capturer_->GetBestCaptureFormat(desired, &capture_format_));
    115   EXPECT_EQ(320, capture_format_.width);
    116   EXPECT_EQ(240, capture_format_.height);
    117 
    118   // Desired format with small resolution.
    119   desired.width = 0;
    120   desired.height = 0;
    121   EXPECT_TRUE(capturer_->GetBestCaptureFormat(desired, &capture_format_));
    122   EXPECT_EQ(320, capture_format_.width);
    123   EXPECT_EQ(240, capture_format_.height);
    124 }
    125 
    126 TEST_F(FileVideoCapturerTest, TestSupportedAsDesiredFormat) {
    127   EXPECT_TRUE(OpenFile("captured-320x240-2s-48.frames"));
    128   // desired format same as the capture format supported by the file
    129   cricket::VideoFormat desired = capturer_->GetSupportedFormats()->at(0);
    130   EXPECT_TRUE(capturer_->GetBestCaptureFormat(desired, &capture_format_));
    131   EXPECT_TRUE(desired == capture_format_);
    132 
    133   // desired format same as the supported capture format except the fourcc
    134   desired.fourcc = cricket::FOURCC_ANY;
    135   EXPECT_TRUE(capturer_->GetBestCaptureFormat(desired, &capture_format_));
    136   EXPECT_NE(capture_format_.fourcc, desired.fourcc);
    137 
    138   // desired format with minimum interval
    139   desired.interval = cricket::VideoFormat::kMinimumInterval;
    140   EXPECT_TRUE(capturer_->GetBestCaptureFormat(desired, &capture_format_));
    141 }
    142 
    143 TEST_F(FileVideoCapturerTest, TestNoRepeat) {
    144   EXPECT_TRUE(OpenFile("captured-320x240-2s-48.frames"));
    145   VideoCapturerListener listener;
    146   capturer_->SignalFrameCaptured.connect(
    147       &listener, &VideoCapturerListener::OnFrameCaptured);
    148   capturer_->set_repeat(0);
    149   capture_format_ = capturer_->GetSupportedFormats()->at(0);
    150   EXPECT_EQ(cricket::CS_RUNNING, capturer_->Start(capture_format_));
    151   EXPECT_TRUE_WAIT(!capturer_->IsRunning(), 20000);
    152   EXPECT_EQ(48, listener.frame_count());
    153 }
    154 
    155 TEST_F(FileVideoCapturerTest, TestRepeatForever) {
    156   // Start the capturer_ with 50 fps and read no less than 150 frames.
    157   EXPECT_TRUE(OpenFile("captured-320x240-2s-48.frames"));
    158   VideoCapturerListener listener;
    159   capturer_->SignalFrameCaptured.connect(
    160       &listener, &VideoCapturerListener::OnFrameCaptured);
    161   capturer_->set_repeat(cricket::FileVideoCapturer::kForever);
    162   capture_format_ = capturer_->GetSupportedFormats()->at(0);
    163   capture_format_.interval = cricket::VideoFormat::FpsToInterval(50);
    164   EXPECT_EQ(cricket::CS_RUNNING, capturer_->Start(capture_format_));
    165   EXPECT_TRUE(NULL != capturer_->GetCaptureFormat());
    166   EXPECT_TRUE(capture_format_ == *capturer_->GetCaptureFormat());
    167   EXPECT_TRUE_WAIT(!capturer_->IsRunning() ||
    168                    listener.frame_count() >= 150, 20000);
    169   capturer_->Stop();
    170   EXPECT_FALSE(capturer_->IsRunning());
    171   EXPECT_GE(listener.frame_count(), 150);
    172   EXPECT_FALSE(listener.resolution_changed());
    173   EXPECT_EQ(listener.frame_width(), capture_format_.width);
    174   EXPECT_EQ(listener.frame_height(), capture_format_.height);
    175 }
    176 
    177 // See: https://code.google.com/p/webrtc/issues/detail?id=2409
    178 TEST_F(FileVideoCapturerTest, DISABLED_TestPartialFrameHeader) {
    179   EXPECT_TRUE(OpenFile("1.frame_plus_1.byte"));
    180   VideoCapturerListener listener;
    181   capturer_->SignalFrameCaptured.connect(
    182       &listener, &VideoCapturerListener::OnFrameCaptured);
    183   capturer_->set_repeat(0);
    184   capture_format_ = capturer_->GetSupportedFormats()->at(0);
    185   EXPECT_EQ(cricket::CS_RUNNING, capturer_->Start(capture_format_));
    186   EXPECT_TRUE_WAIT(!capturer_->IsRunning(), 1000);
    187   EXPECT_EQ(1, listener.frame_count());
    188 }
    189 
    190 TEST_F(FileVideoCapturerTest, TestFileDevices) {
    191   cricket::Device not_a_file("I'm a camera", "with an id");
    192   EXPECT_FALSE(
    193       cricket::FileVideoCapturer::IsFileVideoCapturerDevice(not_a_file));
    194   const std::string test_file =
    195       cricket::GetTestFilePath("captured-320x240-2s-48.frames");
    196   cricket::Device file_device =
    197       cricket::FileVideoCapturer::CreateFileVideoCapturerDevice(test_file);
    198   EXPECT_TRUE(
    199       cricket::FileVideoCapturer::IsFileVideoCapturerDevice(file_device));
    200   EXPECT_TRUE(capturer_->Init(file_device));
    201   EXPECT_EQ(file_device.id, capturer_->GetId());
    202 }
    203 
    204 }  // unnamed namespace
    205