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1 /* | |
2 * libjingle | |
3 * Copyright 2013 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 #import "RTCI420Frame.h" | |
29 | |
30 #include <memory> | |
31 | |
32 #include "webrtc/media/engine/webrtcvideoframe.h" | |
33 | |
34 @implementation RTCI420Frame { | |
35 std::unique_ptr<cricket::VideoFrame> _videoFrame; | |
36 } | |
37 | |
38 - (NSUInteger)width { | |
39 return _videoFrame->width(); | |
40 } | |
41 | |
42 - (NSUInteger)height { | |
43 return _videoFrame->height(); | |
44 } | |
45 | |
46 // TODO(nisse): chromaWidth and chromaHeight are used only in | |
47 // RTCOpenGLVideoRenderer.mm. Update, and then delete these | |
48 // properties. | |
49 - (NSUInteger)chromaWidth { | |
50 return (self.width + 1) / 2; | |
51 } | |
52 | |
53 - (NSUInteger)chromaHeight { | |
54 return (self.height + 1) / 2; | |
55 } | |
56 | |
57 - (const uint8_t*)yPlane { | |
58 const rtc::scoped_refptr<webrtc::VideoFrameBuffer>& buffer = | |
59 _videoFrame->video_frame_buffer(); | |
60 return buffer ? buffer->DataY() : nullptr; | |
61 } | |
62 | |
63 - (const uint8_t*)uPlane { | |
64 const rtc::scoped_refptr<webrtc::VideoFrameBuffer>& buffer = | |
65 _videoFrame->video_frame_buffer(); | |
66 return buffer ? buffer->DataU() : nullptr; | |
67 } | |
68 | |
69 - (const uint8_t*)vPlane { | |
70 const rtc::scoped_refptr<webrtc::VideoFrameBuffer>& buffer = | |
71 _videoFrame->video_frame_buffer(); | |
72 return buffer ? buffer->DataV() : nullptr; | |
73 } | |
74 | |
75 - (NSInteger)yPitch { | |
76 const rtc::scoped_refptr<webrtc::VideoFrameBuffer>& buffer = | |
77 _videoFrame->video_frame_buffer(); | |
78 return buffer ? buffer->StrideY() : 0; | |
79 } | |
80 | |
81 - (NSInteger)uPitch { | |
82 const rtc::scoped_refptr<webrtc::VideoFrameBuffer>& buffer = | |
83 _videoFrame->video_frame_buffer(); | |
84 return buffer ? buffer->StrideU() : 0; | |
85 } | |
86 | |
87 - (NSInteger)vPitch { | |
88 const rtc::scoped_refptr<webrtc::VideoFrameBuffer>& buffer = | |
89 _videoFrame->video_frame_buffer(); | |
90 return buffer ? buffer->StrideV() : 0; | |
91 } | |
92 | |
93 @end | |
94 | |
95 @implementation RTCI420Frame (Internal) | |
96 | |
97 - (instancetype)initWithVideoFrame:(cricket::VideoFrame*)videoFrame { | |
98 if (self = [super init]) { | |
99 // Keep a shallow copy of the video frame. The underlying frame buffer is | |
100 // not copied. | |
101 _videoFrame.reset(new cricket::WebRtcVideoFrame( | |
102 videoFrame->video_frame_buffer(), | |
103 videoFrame->rotation(), | |
104 videoFrame->timestamp_us())); | |
105 } | |
106 return self; | |
107 } | |
108 | |
109 @end | |
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