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_CDM_VIDEO_DECODER_H_
6#define MEDIA_CDM_PPAPI_EXTERNAL_CLEAR_KEY_CDM_VIDEO_DECODER_H_
7
8#include "base/basictypes.h"
9#include "base/memory/scoped_ptr.h"
10#include "media/cdm/ppapi/api/content_decryption_module.h"
11#include "media/cdm/ppapi/external_clear_key/clear_key_cdm_common.h"
12
13namespace media {
14
15class CdmVideoDecoder {
16 public:
17  virtual ~CdmVideoDecoder() {}
18  virtual bool Initialize(const cdm::VideoDecoderConfig& config) = 0;
19  virtual void Deinitialize() = 0;
20  virtual void Reset() = 0;
21  virtual bool is_initialized() const = 0;
22
23  // Decodes |compressed_frame|. Stores output frame in |decoded_frame| and
24  // returns |cdm::kSuccess| when an output frame is available. Returns
25  // |cdm::kNeedMoreData| when |compressed_frame| does not produce an output
26  // frame. Returns |cdm::kDecodeError| when decoding fails.
27  //
28  // A null |compressed_frame| will attempt to flush the decoder of any
29  // remaining frames. |compressed_frame_size| and |timestamp| are ignored.
30  virtual cdm::Status DecodeFrame(const uint8_t* compressed_frame,
31                                  int32_t compressed_frame_size,
32                                  int64_t timestamp,
33                                  cdm::VideoFrame* decoded_frame) = 0;
34};
35
36// Initializes appropriate video decoder based on GYP flags and the value of
37// |config.codec|. Returns a scoped_ptr containing a non-null initialized
38// CdmVideoDecoder* upon success.
39scoped_ptr<CdmVideoDecoder> CreateVideoDecoder(
40    ClearKeyCdmHost* host, const cdm::VideoDecoderConfig& config);
41
42}  // namespace media
43
44#endif  // MEDIA_CDM_PPAPI_EXTERNAL_CLEAR_KEY_CDM_VIDEO_DECODER_H_
45