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 "gpu/command_buffer/common/mailbox.h"
  10 #include "media/base/media_export.h"
  11 #include "ui/gfx/size.h"
  12
  13 namespace media {
  14
  15 // A picture buffer that is composed of a GLES2 texture.
  16 // This is the media-namespace equivalent of PP_PictureBuffer_Dev.
  17 class MEDIA_EXPORT PictureBuffer {
  18  public:
  19   PictureBuffer(int32 id, gfx::Size size, uint32 texture_id);
  20   PictureBuffer(int32 id,
  21                 gfx::Size size,
  22                 uint32 texture_id,
  23                 const gpu::Mailbox& texture_mailbox);
  24
  25   // Returns the client-specified id of the buffer.
  26   int32 id() const {
  27     return id_;
  28   }
  29
  30   // Returns the size of the buffer.
  31   gfx::Size size() const {
  32     return size_;
  33   }
  34
  35   // Returns the id of the texture.
  36   // NOTE: The texture id in the renderer process corresponds to a different
  37   // texture id in the GPU process.
  38   uint32 texture_id() const {
  39     return texture_id_;
  40   }
  41
  42   const gpu::Mailbox& texture_mailbox() const {
  43     return texture_mailbox_;
  44   }
  45
  46  private:
  47   int32 id_;
  48   gfx::Size size_;
  49   uint32 texture_id_;
  50   gpu::Mailbox texture_mailbox_;
  51 };
  52
  53 // A decoded picture frame.
  54 // This is the media-namespace equivalent of PP_Picture_Dev.
  55 class MEDIA_EXPORT Picture {
  56  public:
  57   Picture(int32 picture_buffer_id, int32 bitstream_buffer_id);
  58
  59   // Returns the id of the picture buffer where this picture is contained.
  60   int32 picture_buffer_id() const {
  61     return picture_buffer_id_;
  62   }
  63
  64   // Returns the id of the bitstream buffer from which this frame was decoded.
  65   int32 bitstream_buffer_id() const {
  66     return bitstream_buffer_id_;
  67   }
  68
  69   void set_bitstream_buffer_id(int32 bitstream_buffer_id) {
  70     bitstream_buffer_id_ = bitstream_buffer_id;
  71   }
  72
  73  private:
  74   int32 picture_buffer_id_;
  75   int32 bitstream_buffer_id_;
  76 };
  77
  78 }  // namespace media
  79
  80 #endif  // MEDIA_VIDEO_PICTURE_H_