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Side by Side Diff: talk/media/devices/yuvframescapturer.h

Issue 1587193006: Move talk/media to webrtc/media (Closed) Base URL: https://chromium.googlesource.com/external/webrtc.git@master
Patch Set: Rebased to b647aca12a884a13c1728118586245399b55fa3d (#11493) Created 4 years, 10 months ago
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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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