Merge changes from topic "c2inputsurface-2" into main am: e2af49f4 am: b37b9adc

        "Configurable.cpp",

        "InputBufferManager.cpp",

        "ParamTypes.cpp",

        "inputsurface/FrameDropper.cpp",

        "inputsurface/InputSurface.cpp",

        "inputsurface/InputSurfaceConnection.cpp",

        "inputsurface/InputSurfaceSource.cpp",

    ],

    header_libs: [

        "libmediandk",

        "libstagefright_aidl_bufferpool2",

        "libstagefright_bufferpool@2.0.1",

        "libstagefright_foundation",

        "libui",

        "libutils",

    ],

/*

 * Copyright (C) 2024 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.

 */

#pragma once

#include <utils/Errors.h>

#include <media/stagefright/foundation/ABase.h>

#include <C2.h>

namespace aidl::android::hardware::media::c2::implementation {

/**

 * The class decides whether to drop a frame or not for InputSurface and

 * InputSurfaceConnection.

 */

struct FrameDropper {

    FrameDropper();

    ~FrameDropper();

    /**

     * Sets max frame rate, which is based on for deciding frame drop.

     *

     * @param[in] maxFrameRate  negative value means there is no drop

     *                          zero value is ignored

     */

    void setMaxFrameRate(float maxFrameRate);

    /** Returns false if max frame rate has not been set via setMaxFrameRate. */

    bool shouldDrop(int64_t timeUs);

    /** Returns true if all frame drop logic should be disabled. */

    bool disabled() { return (mMinIntervalUs == -1ll); }

private:

    int64_t mDesiredMinTimeUs;

    int64_t mMinIntervalUs;

    DISALLOW_EVIL_CONSTRUCTORS(FrameDropper);

};

}  // namespace aidl::android::hardware::media::c2::implementation