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140 lines
4.6 KiB
140 lines
4.6 KiB
// Copyright (C) 2019 The Android Open Source Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#pragma once
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#include "host-common/GoldfishMediaDefs.h"
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#include "host-common/H264PingInfoParser.h"
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#include "host-common/MediaH264DecoderDefault.h"
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#include "host-common/MediaH264DecoderPlugin.h"
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#include "host-common/MediaHostRenderer.h"
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extern "C" {
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#include <libavcodec/avcodec.h> // for AVCodecContext, AVPacket
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#include <libavformat/avio.h> // for avio_open, AVIO_FLAG_...
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#include <libavutil/avutil.h> // for AVMediaType, AVMEDIA_...
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#include <libavutil/dict.h> // for AVDictionary
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#include <libavutil/error.h> // for av_make_error_string
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#include <libavutil/frame.h> // for AVFrame, av_frame_alloc
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#include <libavutil/log.h> // for av_log_set_callback
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#include <libavutil/pixfmt.h> // for AVPixelFormat, AV_PIX...
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#include <libavutil/rational.h> // for AVRational
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#include <libavutil/samplefmt.h> // for AVSampleFormat
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#include <libavutil/timestamp.h>
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}
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#include <cstdint>
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#include <string>
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#include <vector>
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#include <stdio.h>
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#include <string.h>
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#include <stddef.h>
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namespace android {
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namespace emulation {
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class MediaH264DecoderFfmpeg: public MediaH264DecoderPlugin {
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public:
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virtual void reset(void* ptr) override;
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virtual void initH264Context(void* ptr) override;
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virtual MediaH264DecoderPlugin* clone() override;
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virtual void destroyH264Context() override;
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virtual void decodeFrame(void* ptr) override;
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virtual void flush(void* ptr) override;
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virtual void getImage(void* ptr) override;
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virtual void save(base::Stream* stream) const override;
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virtual bool load(base::Stream* stream) override;
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explicit MediaH264DecoderFfmpeg(uint64_t id, H264PingInfoParser parser);
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virtual ~MediaH264DecoderFfmpeg();
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virtual int type() const override { return PLUGIN_TYPE_FFMPEG; }
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friend MediaH264DecoderDefault;
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public:
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void decodeFrameDirect(void* ptr,
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const uint8_t* frame,
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size_t szBytes,
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uint64_t pts);
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private:
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void decodeFrameInternal(H264PingInfoParser::DecodeFrameParam& param);
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void initH264ContextInternal(unsigned int width,
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unsigned int height,
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unsigned int outWidth,
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unsigned int outHeight,
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PixelFormat pixFmt);
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uint64_t mId = 0;
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H264PingInfoParser mParser;
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MediaHostRenderer mRenderer;
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// image props
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int mNumDecodedFrame = 0;
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bool mImageReady = false;
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bool mIsSoftwareDecoder = true;
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bool mIsInFlush = false;
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bool mFrameFormatChanged = false;
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static constexpr int kBPP = 2; // YUV420 is 2 bytes per pixel
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unsigned int mWidth = 0;
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unsigned int mHeight = 0;
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unsigned int mOutputHeight = 0;
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unsigned int mOutputWidth = 0;
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unsigned int mColorPrimaries = 2;
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unsigned int mColorRange = 0;
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unsigned int mColorTransfer = 2;
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unsigned int mColorSpace = 2;
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uint64_t mOutputPts = 0;
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uint64_t mInputPts = 0;
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unsigned int mSurfaceHeight = 0;
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unsigned int mBPP = 0;
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unsigned int mSurfaceWidth = 0;
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unsigned int mLumaHeight = 0;
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unsigned int mChromaHeight = 0;
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PixelFormat mOutPixFmt;
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unsigned int mOutBufferSize = 0;
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// right now, decoding command only passes the input address;
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// and output address is only available in getImage().
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// TODO: this should be set to the output address to avoid
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// extra copying
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std::vector<uint8_t> mDecodedFrame;
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// ffmpeg stuff
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AVCodec *mCodec = nullptr;;
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AVCodecContext *mCodecCtx = nullptr;
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AVFrame *mFrame = nullptr;
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AVPacket mPacket;
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private:
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mutable SnapshotState mSnapshotState;
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private:
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void copyFrame();
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void resetDecoder();
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bool checkWhetherConfigChanged(const uint8_t* frame, size_t szBytes);
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void oneShotDecode(std::vector<uint8_t>& data, uint64_t pts);
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}; // MediaH264DecoderFfmpeg
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} // namespace emulation
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} // namespace android
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