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// Copyright (c) 2012 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 WEBKIT_MEDIA_CRYPTO_PPAPI_CDM_VIDEO_DECODER_H_
#define WEBKIT_MEDIA_CRYPTO_PPAPI_CDM_VIDEO_DECODER_H_
#include "base/basictypes.h"
#include "base/memory/scoped_ptr.h"
#include "webkit/media/crypto/ppapi/cdm/content_decryption_module.h"
namespace webkit_media {
class CdmVideoDecoder {
public:
virtual ~CdmVideoDecoder() {}
virtual bool Initialize(const cdm::VideoDecoderConfig& config) = 0;
virtual void Deinitialize() = 0;
virtual void Reset() = 0;
virtual bool is_initialized() const = 0;
// Decodes |compressed_frame|. Stores output frame in |decoded_frame| and
// returns |cdm::kSuccess| when an output frame is available. Returns
// |cdm::kNeedMoreData| when |compressed_frame| does not produce an output
// frame. Returns |cdm::kDecodeError| when decoding fails.
//
// A null |compressed_frame| will attempt to flush the decoder of any
// remaining frames. |compressed_frame_size| and |timestamp| are ignored.
virtual cdm::Status DecodeFrame(const uint8_t* compressed_frame,
int32_t compressed_frame_size,
int64_t timestamp,
cdm::VideoFrame* decoded_frame) = 0;
};
// Initializes appropriate video decoder based on GYP flags and the value of
// |config.codec|. Returns a scoped_ptr containing a non-null initialized
// CdmVideoDecoder* upon success.
scoped_ptr<CdmVideoDecoder> CreateVideoDecoder(
cdm::Allocator* allocator,
const cdm::VideoDecoderConfig& config);
} // namespace webkit_media
#endif // WEBKIT_MEDIA_CRYPTO_PPAPI_CDM_VIDEO_DECODER_H_
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