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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 WEBKIT_RENDERER_MEDIA_CRYPTO_PPAPI_FFMPEG_CDM_VIDEO_DECODER_H_ | |
6 #define WEBKIT_RENDERER_MEDIA_CRYPTO_PPAPI_FFMPEG_CDM_VIDEO_DECODER_H_ | |
7 | |
8 #include "base/basictypes.h" | |
9 #include "base/compiler_specific.h" | |
10 #include "webkit/renderer/media/crypto/ppapi/cdm/content_decryption_module.h" | |
11 #include "webkit/renderer/media/crypto/ppapi/cdm_video_decoder.h" | |
12 | |
13 struct AVCodecContext; | |
14 struct AVFrame; | |
15 | |
16 namespace webkit_media { | |
17 | |
18 class FFmpegCdmVideoDecoder : public CdmVideoDecoder { | |
19 public: | |
20 explicit FFmpegCdmVideoDecoder(cdm::Host* host); | |
21 virtual ~FFmpegCdmVideoDecoder(); | |
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 |av_frame_| to | |
40 // |cdm_video_frame|. Returns true when allocation and copy succeed. | |
41 bool CopyAvFrameTo(cdm::VideoFrame* cdm_video_frame); | |
42 | |
43 void ReleaseFFmpegResources(); | |
44 | |
45 // FFmpeg structures owned by this object. | |
46 AVCodecContext* codec_context_; | |
47 AVFrame* av_frame_; | |
48 | |
49 bool is_initialized_; | |
50 | |
51 cdm::Host* const host_; | |
52 | |
53 DISALLOW_COPY_AND_ASSIGN(FFmpegCdmVideoDecoder); | |
54 }; | |
55 | |
56 } // namespace webkit_media | |
57 | |
58 #endif // WEBKIT_RENDERER_MEDIA_CRYPTO_PPAPI_FFMPEG_CDM_VIDEO_DECODER_H_ | |
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