зеркало из https://github.com/mozilla/gecko-dev.git
101 строка
4.0 KiB
C++
101 строка
4.0 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* Copyright (c) 2011, The WebRTC project authors. All rights reserved.
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* Copyright (c) 2014, Mozilla
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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** Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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** Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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** Neither the name of Google nor the names of its contributors may
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* be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef GMP_VIDEO_DECODE_h_
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#define GMP_VIDEO_DECODE_h_
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#include "gmp-video-errors.h"
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#include "gmp-video-frame-i420.h"
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#include "gmp-video-frame-encoded.h"
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#include "gmp-video-codec.h"
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#include <stdint.h>
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// ALL METHODS MUST BE CALLED ON THE MAIN THREAD
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class GMPDecoderCallback
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{
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public:
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virtual ~GMPDecoderCallback() {}
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virtual void Decoded(GMPVideoi420Frame* aDecodedFrame) = 0;
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virtual void ReceivedDecodedReferenceFrame(const uint64_t aPictureId) = 0;
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virtual void ReceivedDecodedFrame(const uint64_t aPictureId) = 0;
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virtual void InputDataExhausted() = 0;
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};
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// ALL METHODS MUST BE CALLED ON THE MAIN THREAD
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class GMPVideoDecoder
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{
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public:
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virtual ~GMPVideoDecoder() {}
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// aCallback: Subclass should retain reference to it until DecodingComplete
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// is called. Do not attempt to delete it, host retains ownership.
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virtual GMPVideoErr InitDecode(const GMPVideoCodec& aCodecSettings,
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GMPDecoderCallback* aCallback,
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int32_t aCoreCount) = 0;
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// Decode encoded frame (as a part of a video stream). The decoded frame
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// will be returned to the user through the decode complete callback.
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//
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// inputFrame: Frame to decode.
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//
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// missingFrames: True if one or more frames have been lost since the previous decode call.
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//
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// fragmentation: Specifies where the encoded frame can be split into separate fragments.
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// The meaning of fragment is codec specific, but often means that each
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// fragment is decodable by itself.
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//
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// codecSpecificInfo: Codec-specific data
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//
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// renderTimeMs : System time to render in milliseconds. Only used by decoders with internal
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// rendering.
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virtual GMPVideoErr Decode(GMPVideoEncodedFrame* aInputFrame,
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bool aMissingFrames,
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const GMPCodecSpecificInfo& aCodecSpecificInfo,
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int64_t aRenderTimeMs = -1) = 0;
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// Reset decoder state and prepare for a new call to Decode(...). Flushes the decoder pipeline.
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virtual GMPVideoErr Reset() = 0;
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// Output decoded frames for any data in the pipeline, regardless of ordering.
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virtual GMPVideoErr Drain() = 0;
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// May free decoder memory.
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virtual void DecodingComplete() = 0;
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};
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#endif // GMP_VIDEO_DECODE_h_
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