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Side by Side Diff: webkit/media/crypto/ppapi/ffmpeg_cdm_video_decoder.h

Issue 11316045: Add a libvpx video decoder to ClearKeyCdm and move the fake video decoder to its own class. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Address comments. Created 8 years ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef WEBKIT_MEDIA_CRYPTO_PPAPI_FFMPEG_CDM_VIDEO_DECODER_H_ 5 #ifndef WEBKIT_MEDIA_CRYPTO_PPAPI_FFMPEG_CDM_VIDEO_DECODER_H_
6 #define WEBKIT_MEDIA_CRYPTO_PPAPI_FFMPEG_CDM_VIDEO_DECODER_H_ 6 #define WEBKIT_MEDIA_CRYPTO_PPAPI_FFMPEG_CDM_VIDEO_DECODER_H_
7 7
8 #include "base/basictypes.h" 8 #include "base/basictypes.h"
9 #include "base/compiler_specific.h" 9 #include "base/compiler_specific.h"
10 #include "webkit/media/crypto/ppapi/cdm_video_decoder.h"
10 #include "webkit/media/crypto/ppapi/content_decryption_module.h" 11 #include "webkit/media/crypto/ppapi/content_decryption_module.h"
11 12
12 struct AVCodecContext; 13 struct AVCodecContext;
13 struct AVFrame; 14 struct AVFrame;
14 15
15 namespace webkit_media { 16 namespace webkit_media {
16 17
17 class FFmpegCdmVideoDecoder { 18 class FFmpegCdmVideoDecoder : public CdmVideoDecoder {
18 public: 19 public:
19 explicit FFmpegCdmVideoDecoder(cdm::Allocator* allocator); 20 explicit FFmpegCdmVideoDecoder(cdm::Allocator* allocator);
20 ~FFmpegCdmVideoDecoder(); 21 virtual ~FFmpegCdmVideoDecoder();
21 bool Initialize(const cdm::VideoDecoderConfig& config); 22
22 void Deinitialize(); 23 // CdmVideoDecoder implementation.
23 void Reset(); 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_; }
24 32
25 // Returns true when |format| and |data_size| specify a supported video 33 // Returns true when |format| and |data_size| specify a supported video
26 // output configuration. 34 // output configuration.
27 static bool IsValidOutputConfig(cdm::VideoFormat format, 35 static bool IsValidOutputConfig(cdm::VideoFormat format,
28 const cdm::Size& data_size); 36 const cdm::Size& data_size);
29 37
30 // Decodes |compressed_frame|. Stores output frame in |decoded_frame| and
31 // returns |cdm::kSuccess| when an output frame is available. Returns
32 // |cdm::kNeedMoreData| when |compressed_frame| does not produce an output
33 // frame. Returns |cdm::kDecodeError| when decoding fails.
34 cdm::Status DecodeFrame(const uint8_t* compressed_frame,
35 int32_t compressed_frame_size,
36 int64_t timestamp,
37 cdm::VideoFrame* decoded_frame);
38
39 private: 38 private:
40 // Allocates storage, then copies video frame stored in |av_frame_| to 39 // Allocates storage, then copies video frame stored in |av_frame_| to
41 // |cdm_video_frame|. Returns true when allocation and copy succeed. 40 // |cdm_video_frame|. Returns true when allocation and copy succeed.
42 bool CopyAvFrameTo(cdm::VideoFrame* cdm_video_frame); 41 bool CopyAvFrameTo(cdm::VideoFrame* cdm_video_frame);
43 42
44 void ReleaseFFmpegResources(); 43 void ReleaseFFmpegResources();
45 44
46 // FFmpeg structures owned by this object. 45 // FFmpeg structures owned by this object.
47 AVCodecContext* codec_context_; 46 AVCodecContext* codec_context_;
48 AVFrame* av_frame_; 47 AVFrame* av_frame_;
49 48
50 bool is_initialized_; 49 bool is_initialized_;
51 50
52 cdm::Allocator* const allocator_; 51 cdm::Allocator* const allocator_;
53 52
54 DISALLOW_COPY_AND_ASSIGN(FFmpegCdmVideoDecoder); 53 DISALLOW_COPY_AND_ASSIGN(FFmpegCdmVideoDecoder);
55 }; 54 };
56 55
57 } // namespace webkit_media 56 } // namespace webkit_media
58 57
59 #endif // WEBKIT_MEDIA_CRYPTO_PPAPI_FFMPEG_CDM_VIDEO_DECODER_H_ 58 #endif // WEBKIT_MEDIA_CRYPTO_PPAPI_FFMPEG_CDM_VIDEO_DECODER_H_
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