/*
* Copyright (C) 2025 Amlogic Corporation.
*
* 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.
*/
#include <sys/ioctl.h>
#include <fcntl.h>
#include <cerrno>
#include <unistd.h>

#include "VideoPipeAdapter.h"
#include "DispAdptLog.h"

VideoPipeAdapter::VideoPipeAdapter()
{
    if (mDevFd < 0) {
        mDevFd = open(ADAPTER_NAME, O_RDWR | O_NONBLOCK);
        if (mDevFd < 0)
            DISPLAY_LOGE("can not open %s, error: %d", ADAPTER_NAME, errno);
    }
}

VideoPipeAdapter::~VideoPipeAdapter()
{
    if (mDevFd >= 0)
        close(mDevFd);
    mDevFd = -1;
}

int VideoPipeAdapter::getVideoDelay(int fps, int outfps)
{
    if (mDevFd < 0)
        return -1;

    struct video_delay_arg_t arg = { 0 };

    arg.input_fps = fps;
    arg.output_fps = outfps;
    int ret = ioctl(mDevFd, VIDEO_PIPE_ADAPTER_GET_VIDEO_DELAY, &arg);
    if (ret)
        DISPLAY_LOGE("can not get video delay, error: %d", errno);

    return arg.video_delay;
}