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_FFMPEG_CDM_VIDEO_DECODER_H_ 6 #define MEDIA_CDM_PPAPI_FFMPEG_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/cdm_video_decoder.h" 12 13 struct AVCodecContext; 14 struct AVFrame; 15 16 namespace 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 media 57 58 #endif // MEDIA_CDM_PPAPI_FFMPEG_CDM_VIDEO_DECODER_H_ 59
