1// libjingle
2// Copyright 2014 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
27#ifndef TALK_MEDIA_BASE_VIDEOFRAMEFACTORY_H_
28#define TALK_MEDIA_BASE_VIDEOFRAMEFACTORY_H_
29
30namespace cricket {
31
32struct CapturedFrame;
33class VideoFrame;
34
35// Creates cricket::VideoFrames, or a subclass of cricket::VideoFrame
36// depending on the subclass of VideoFrameFactory.
37class VideoFrameFactory {
38 public:
39  VideoFrameFactory() {}
40  virtual ~VideoFrameFactory() {}
41
42  // The returned frame aliases the aliased_frame if the input color
43  // space allows for aliasing, otherwise a color conversion will
44  // occur.  For safety, |input_frame| must outlive the returned
45  // frame.  Returns NULL if conversion fails.
46  virtual VideoFrame* CreateAliasedFrame(
47      const CapturedFrame* input_frame, int width, int height) const = 0;
48};
49
50}  // namespace cricket
51
52#endif  // TALK_MEDIA_BASE_VIDEOFRAMEFACTORY_H_
53