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// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef MEDIA_CDM_PPAPI_FFMPEG_CDM_VIDEO_DECODER_H_
#define MEDIA_CDM_PPAPI_FFMPEG_CDM_VIDEO_DECODER_H_
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "media/cdm/ppapi/api/content_decryption_module.h"
#include "media/cdm/ppapi/cdm_video_decoder.h"
struct AVCodecContext;
struct AVFrame;
namespace media {
class FFmpegCdmVideoDecoder : public CdmVideoDecoder {
public:
explicit FFmpegCdmVideoDecoder(cdm::Host* host);
virtual ~FFmpegCdmVideoDecoder();
// CdmVideoDecoder implementation.
virtual bool Initialize(const cdm::VideoDecoderConfig& config) OVERRIDE;
virtual void Deinitialize() OVERRIDE;
virtual void Reset() OVERRIDE;
virtual cdm::Status DecodeFrame(const uint8_t* compressed_frame,
int32_t compressed_frame_size,
int64_t timestamp,
cdm::VideoFrame* decoded_frame) OVERRIDE;
virtual bool is_initialized() const OVERRIDE { return is_initialized_; }
// Returns true when |format| and |data_size| specify a supported video
// output configuration.
static bool IsValidOutputConfig(cdm::VideoFormat format,
const cdm::Size& data_size);
private:
// Allocates storage, then copies video frame stored in |av_frame_| to
// |cdm_video_frame|. Returns true when allocation and copy succeed.
bool CopyAvFrameTo(cdm::VideoFrame* cdm_video_frame);
void ReleaseFFmpegResources();
// FFmpeg structures owned by this object.
AVCodecContext* codec_context_;
AVFrame* av_frame_;
bool is_initialized_;
cdm::Host* const host_;
DISALLOW_COPY_AND_ASSIGN(FFmpegCdmVideoDecoder);
};
} // namespace media
#endif // MEDIA_CDM_PPAPI_FFMPEG_CDM_VIDEO_DECODER_H_
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