Implement AV1 Encoder via Codec2 interface

    srcs: ["C2SoftAomDec.cpp"],

    static_libs: ["libaom"],

}

cc_library {

    name: "libcodec2_soft_av1enc",

    defaults: [

        "libcodec2_soft-defaults",

        "libcodec2_soft_sanitize_all-defaults",

    ],

    static_libs: ["libaom"],

    srcs: ["C2SoftAomEnc.cpp"],

    export_include_dirs: ["."],

    apex_available: [

        "//apex_available:platform",

        "com.android.media.swcodec",

    ],

}

/*

 * Copyright (C) 2022 The Android Open Source Project

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *      http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

#ifndef ANDROID_C2_SOFT_AV1_ENC_H_

#define ANDROID_C2_SOFT_AV1_ENC_H_

#include <inttypes.h>

#include <C2PlatformSupport.h>

#include <Codec2BufferUtils.h>

#include <SimpleC2Component.h>

#include <SimpleC2Interface.h>

#include <util/C2InterfaceHelper.h>

#include "aom/aom_encoder.h"

#include "aom/aomcx.h"

#include "common/av1_config.h"

namespace android {

struct C2SoftAomEnc : public SimpleC2Component {

    class IntfImpl;

    C2SoftAomEnc(const char* name, c2_node_id_t id, const std::shared_ptr<IntfImpl>& intfImpl);

    // From SimpleC2Component

    c2_status_t onInit() override final;

    c2_status_t onStop() override final;

    void onReset() override final;

    void onRelease() override final;

    c2_status_t onFlush_sm() override final;

    void process(const std::unique_ptr<C2Work>& work,

                 const std::shared_ptr<C2BlockPool>& pool) override final;

    c2_status_t drain(uint32_t drainMode, const std::shared_ptr<C2BlockPool>& pool) override final;

protected:

    virtual ~C2SoftAomEnc();

private:

  std::shared_ptr<IntfImpl> mIntf;

  // Initializes aom encoder with available settings.

  status_t initEncoder();

  // aom specific opaque data structure that

  // stores encoder state

  aom_codec_ctx_t* mCodecContext;

  // aom specific data structure that

  // stores encoder configuration

  aom_codec_enc_cfg_t* mCodecConfiguration;

  // aom specific read-only data structure

  // that specifies algorithm interface

  aom_codec_iface_t* mCodecInterface;

  // align stride to the power of 2

  int32_t mStrideAlign;

  aom_rc_mode mBitrateControlMode;

  // Minimum (best quality) quantizer

  uint32_t mMinQuantizer;

  // Maximum (worst quality) quantizer

  uint32_t mMaxQuantizer;

  // Last input buffer timestamp

  uint64_t mLastTimestamp;

  // Number of input frames

  int64_t mNumInputFrames;

  // Conversion buffer is needed to input to

  // yuv420 planar format.

  MemoryBlock mConversionBuffer;

  // Signalled End Of Stream

  bool mSignalledOutputEos;

  // Signalled Error

  bool mSignalledError;

  bool mHeadersReceived;

  std::shared_ptr<C2StreamPictureSizeInfo::input> mSize;

  std::shared_ptr<C2StreamIntraRefreshTuning::output> mIntraRefresh;

  std::shared_ptr<C2StreamFrameRateInfo::output> mFrameRate;

  std::shared_ptr<C2StreamBitrateInfo::output> mBitrate;

  std::shared_ptr<C2StreamBitrateModeTuning::output> mBitrateMode;

  std::shared_ptr<C2StreamRequestSyncFrameTuning::output> mRequestSync;

  aom_codec_err_t setupCodecParameters();

};

class C2SoftAomEnc::IntfImpl : public SimpleInterface<void>::BaseParams {

public:

    explicit IntfImpl(const std::shared_ptr<C2ReflectorHelper> &helper);

    static C2R BitrateSetter(bool mayBlock, C2P<C2StreamBitrateInfo::output> &me);

    static C2R SizeSetter(bool mayBlock, const C2P<C2StreamPictureSizeInfo::input> &oldMe,

                          C2P<C2StreamPictureSizeInfo::input> &me);

    static C2R ProfileLevelSetter(

            bool mayBlock,

            C2P<C2StreamProfileLevelInfo::output> &me);

    // unsafe getters

    std::shared_ptr<C2StreamPictureSizeInfo::input> getSize_l() const { return mSize; }

    std::shared_ptr<C2StreamIntraRefreshTuning::output> getIntraRefresh_l() const {

        return mIntraRefresh;

    }

    std::shared_ptr<C2StreamFrameRateInfo::output> getFrameRate_l() const { return mFrameRate; }

    std::shared_ptr<C2StreamBitrateInfo::output> getBitrate_l() const { return mBitrate; }

    std::shared_ptr<C2StreamBitrateModeTuning::output> getBitrateMode_l() const {

        return mBitrateMode;

    }

    std::shared_ptr<C2StreamRequestSyncFrameTuning::output> getRequestSync_l() const {

        return mRequestSync;

    }

    std::shared_ptr<C2StreamColorAspectsInfo::output> getCodedColorAspects_l() const {

        return mCodedColorAspects;

    }

    uint32_t getSyncFramePeriod() const;

    static C2R ColorAspectsSetter(bool mayBlock, C2P<C2StreamColorAspectsInfo::input> &me);

    static C2R CodedColorAspectsSetter(bool mayBlock, C2P<C2StreamColorAspectsInfo::output> &me,

                                       const C2P<C2StreamColorAspectsInfo::input> &coded);

private:

  std::shared_ptr<C2StreamUsageTuning::input> mUsage;

  std::shared_ptr<C2StreamPictureSizeInfo::input> mSize;

  std::shared_ptr<C2StreamFrameRateInfo::output> mFrameRate;

  std::shared_ptr<C2StreamIntraRefreshTuning::output> mIntraRefresh;

  std::shared_ptr<C2StreamRequestSyncFrameTuning::output> mRequestSync;

  std::shared_ptr<C2StreamSyncFrameIntervalTuning::output> mSyncFramePeriod;

  std::shared_ptr<C2StreamBitrateInfo::output> mBitrate;

  std::shared_ptr<C2StreamBitrateModeTuning::output> mBitrateMode;

  std::shared_ptr<C2StreamProfileLevelInfo::output> mProfileLevel;

  std::shared_ptr<C2StreamColorAspectsInfo::input> mColorAspects;

  std::shared_ptr<C2StreamColorAspectsInfo::output> mCodedColorAspects;

};

}  // namespace android

#endif  // ANDROID_C2_SOFT_AV1_ENC_H_