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      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_
     81