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1 /* | |
2 * libjingle | |
3 * Copyright 2010 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 #ifndef TALK_MEDIA_DEVICES_YUVFRAMESCAPTURER_H_ | |
29 #define TALK_MEDIA_DEVICES_YUVFRAMESCAPTURER_H_ | |
30 | |
31 #include <string> | |
32 #include <vector> | |
33 | |
34 #include "talk/media/base/videocapturer.h" | |
35 #include "talk/media/base/yuvframegenerator.h" | |
36 #include "webrtc/base/stream.h" | |
37 #include "webrtc/base/stringutils.h" | |
38 | |
39 | |
40 namespace rtc { | |
41 class FileStream; | |
42 } | |
43 | |
44 namespace cricket { | |
45 | |
46 | |
47 // Simulated video capturer that periodically reads frames from a file. | |
48 class YuvFramesCapturer : public VideoCapturer { | |
49 public: | |
50 YuvFramesCapturer(); | |
51 YuvFramesCapturer(int width, int height); | |
52 virtual ~YuvFramesCapturer(); | |
53 | |
54 static const char* kYuvFrameDeviceName; | |
55 static Device CreateYuvFramesCapturerDevice() { | |
56 std::stringstream id; | |
57 id << kYuvFrameDeviceName; | |
58 return Device(id.str(), id.str()); | |
59 } | |
60 static bool IsYuvFramesCapturerDevice(const Device& device) { | |
61 return rtc::starts_with(device.id.c_str(), kYuvFrameDeviceName); | |
62 } | |
63 | |
64 void Init(); | |
65 // Override virtual methods of parent class VideoCapturer. | |
66 virtual CaptureState Start(const VideoFormat& capture_format); | |
67 virtual void Stop(); | |
68 virtual bool IsRunning(); | |
69 virtual bool IsScreencast() const { return false; } | |
70 | |
71 protected: | |
72 // Override virtual methods of parent class VideoCapturer. | |
73 virtual bool GetPreferredFourccs(std::vector<uint32_t>* fourccs); | |
74 | |
75 // Read a frame and determine how long to wait for the next frame. | |
76 void ReadFrame(bool first_frame); | |
77 | |
78 private: | |
79 class YuvFramesThread; // Forward declaration, defined in .cc. | |
80 | |
81 YuvFrameGenerator* frame_generator_; | |
82 CapturedFrame captured_frame_; | |
83 YuvFramesThread* frames_generator_thread; | |
84 int width_; | |
85 int height_; | |
86 uint32_t frame_data_size_; | |
87 uint32_t frame_index_; | |
88 | |
89 int64_t barcode_reference_timestamp_millis_; | |
90 int32_t barcode_interval_; | |
91 int32_t GetBarcodeValue(); | |
92 | |
93 RTC_DISALLOW_COPY_AND_ASSIGN(YuvFramesCapturer); | |
94 }; | |
95 | |
96 } // namespace cricket | |
97 | |
98 #endif // TALK_MEDIA_DEVICES_YUVFRAMESCAPTURER_H_ | |
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