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-rw-r--r--chromium/media/filters/video_decoder_selector.h88
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diff --git a/chromium/media/filters/video_decoder_selector.h b/chromium/media/filters/video_decoder_selector.h
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--- a/chromium/media/filters/video_decoder_selector.h
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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 MEDIA_FILTERS_VIDEO_DECODER_SELECTOR_H_
-#define MEDIA_FILTERS_VIDEO_DECODER_SELECTOR_H_
-
-#include "base/callback.h"
-#include "base/memory/ref_counted.h"
-#include "base/memory/scoped_vector.h"
-#include "base/memory/weak_ptr.h"
-#include "media/base/decryptor.h"
-#include "media/base/demuxer_stream.h"
-#include "media/base/video_decoder.h"
-
-namespace base {
-class MessageLoopProxy;
-}
-
-namespace media {
-
-class DecoderBuffer;
-class DecryptingDemuxerStream;
-class Decryptor;
-
-// VideoDecoderSelector (creates if necessary and) initializes the proper
-// VideoDecoder for a given DemuxerStream. If the given DemuxerStream is
-// encrypted, a DecryptingDemuxerStream may also be created.
-class MEDIA_EXPORT VideoDecoderSelector {
- public:
- // Indicates completion of VideoDecoder selection.
- // - First parameter: The initialized VideoDecoder. If it's set to NULL, then
- // VideoDecoder initialization failed.
- // - Second parameter: The initialized DecryptingDemuxerStream. If it's not
- // NULL, then a DecryptingDemuxerStream is created and initialized to do
- // decryption for the initialized VideoDecoder.
- // Note: The caller owns selected VideoDecoder and DecryptingDemuxerStream.
- // The caller should call DecryptingDemuxerStream::Reset() before
- // calling VideoDecoder::Reset() to release any pending decryption or read.
- typedef base::Callback<
- void(scoped_ptr<VideoDecoder>,
- scoped_ptr<DecryptingDemuxerStream>)> SelectDecoderCB;
-
- // |decoders| contains the VideoDecoders to use when initializing.
- //
- // |set_decryptor_ready_cb| is optional. If |set_decryptor_ready_cb| is null,
- // no decryptor will be available to perform decryption.
- VideoDecoderSelector(
- const scoped_refptr<base::MessageLoopProxy>& message_loop,
- ScopedVector<VideoDecoder> decoders,
- const SetDecryptorReadyCB& set_decryptor_ready_cb);
- ~VideoDecoderSelector();
-
- // Initializes and selects an VideoDecoder that can decode the |stream|.
- // Selected VideoDecoder (and DecryptingDemuxerStream) is returned via
- // the |select_decoder_cb|.
- void SelectVideoDecoder(DemuxerStream* stream,
- const SelectDecoderCB& select_decoder_cb);
-
- // Aborts pending VideoDecoder selection and fires |select_decoder_cb| with
- // NULL and NULL immediately if it's pending.
- void Abort();
-
- private:
- void DecryptingVideoDecoderInitDone(PipelineStatus status);
- void DecryptingDemuxerStreamInitDone(PipelineStatus status);
- void InitializeDecoder();
- void DecoderInitDone(PipelineStatus status);
- void ReturnNullDecoder();
-
- scoped_refptr<base::MessageLoopProxy> message_loop_;
- ScopedVector<VideoDecoder> decoders_;
- SetDecryptorReadyCB set_decryptor_ready_cb_;
-
- DemuxerStream* input_stream_;
- SelectDecoderCB select_decoder_cb_;
-
- scoped_ptr<VideoDecoder> video_decoder_;
- scoped_ptr<DecryptingDemuxerStream> decrypted_stream_;
-
- base::WeakPtrFactory<VideoDecoderSelector> weak_ptr_factory_;
-
- DISALLOW_IMPLICIT_CONSTRUCTORS(VideoDecoderSelector);
-};
-
-} // namespace media
-
-#endif // MEDIA_FILTERS_VIDEO_DECODER_SELECTOR_H_