1// Copyright 2013 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_CDM_PPAPI_EXTERNAL_CLEAR_KEY_LIBVPX_CDM_VIDEO_DECODER_H_
6#define MEDIA_CDM_PPAPI_EXTERNAL_CLEAR_KEY_LIBVPX_CDM_VIDEO_DECODER_H_
7
8#include "base/basictypes.h"
9#include "base/compiler_specific.h"
10#include "media/cdm/ppapi/api/content_decryption_module.h"
11#include "media/cdm/ppapi/external_clear_key/cdm_video_decoder.h"
12
13struct vpx_codec_ctx;
14struct vpx_image;
15
16namespace media {
17
18class LibvpxCdmVideoDecoder : public CdmVideoDecoder {
19 public:
20  explicit LibvpxCdmVideoDecoder(CdmHost* host);
21  virtual ~LibvpxCdmVideoDecoder();
22
23  // CdmVideoDecoder implementation.
24  virtual bool Initialize(const cdm::VideoDecoderConfig& config) OVERRIDE;
25  virtual void Deinitialize() OVERRIDE;
26  virtual void Reset() OVERRIDE;
27  virtual cdm::Status DecodeFrame(const uint8_t* compressed_frame,
28                                  int32_t compressed_frame_size,
29                                  int64_t timestamp,
30                                  cdm::VideoFrame* decoded_frame) OVERRIDE;
31  virtual bool is_initialized() const OVERRIDE { return is_initialized_; }
32
33  // Returns true when |format| and |data_size| specify a supported video
34  // output configuration.
35  static bool IsValidOutputConfig(cdm::VideoFormat format,
36                                  const cdm::Size& data_size);
37
38 private:
39  // Allocates storage, then copies video frame stored in |vpx_image_| to
40  // |cdm_video_frame|. Returns true when allocation and copy succeed.
41  bool CopyVpxImageTo(cdm::VideoFrame* cdm_video_frame);
42
43  bool is_initialized_;
44
45  CdmHost* const host_;
46
47  vpx_codec_ctx* vpx_codec_;
48  vpx_image* vpx_image_;
49
50  DISALLOW_COPY_AND_ASSIGN(LibvpxCdmVideoDecoder);
51};
52
53}  // namespace media
54
55#endif  // MEDIA_CDM_PPAPI_EXTERNAL_CLEAR_KEY_LIBVPX_CDM_VIDEO_DECODER_H_
56