media/video/picture.h

   1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef MEDIA_VIDEO_PICTURE_H_
   6 #define MEDIA_VIDEO_PICTURE_H_
   7
   8 #include "base/basictypes.h"
   9 #include "media/base/media_export.h"
  10 #include "ui/gfx/size.h"
  11
  12 namespace media {
  13
  14 // A picture buffer that is composed of a GLES2 texture.
  15 // This is the media-namespace equivalent of PP_PictureBuffer_Dev.
  16 class MEDIA_EXPORT PictureBuffer {
  17  public:
  18   PictureBuffer(int32 id, gfx::Size size, uint32 texture_id);
  19
  20   // Returns the client-specified id of the buffer.
  21   int32 id() const {
  22     return id_;
  23   }
  24
  25   // Returns the size of the buffer.
  26   gfx::Size size() const {
  27     return size_;
  28   }
  29
  30   // Returns the id of the texture.
  31   // NOTE: The texture id in the renderer process corresponds to a different
  32   // texture id in the GPU process.
  33   uint32 texture_id() const {
  34     return texture_id_;
  35   }
  36
  37  private:
  38   int32 id_;
  39   gfx::Size size_;
  40   uint32 texture_id_;
  41 };
  42
  43 // A decoded picture frame.
  44 // This is the media-namespace equivalent of PP_Picture_Dev.
  45 class MEDIA_EXPORT Picture {
  46  public:
  47   Picture(int32 picture_buffer_id, int32 bitstream_buffer_id);
  48
  49   // Returns the id of the picture buffer where this picture is contained.
  50   int32 picture_buffer_id() const {
  51     return picture_buffer_id_;
  52   }
  53
  54   // Returns the id of the bitstream buffer from which this frame was decoded.
  55   int32 bitstream_buffer_id() const {
  56     return bitstream_buffer_id_;
  57   }
  58
  59   void set_bitstream_buffer_id(int32 bitstream_buffer_id) {
  60     bitstream_buffer_id_ = bitstream_buffer_id;
  61   }
  62
  63  private:
  64   int32 picture_buffer_id_;
  65   int32 bitstream_buffer_id_;
  66 };
  67
  68 }  // namespace media
  69
  70 #endif  // MEDIA_VIDEO_PICTURE_H_