<?php
# Generated by the protocol buffer compiler.  DO NOT EDIT!
# source: google/cloud/video/transcoder/v1beta1/resources.proto

namespace Google\Cloud\Video\Transcoder\V1beta1\AudioStream\AudioAtom\AudioChannel;

use Google\Protobuf\Internal\GPBType;
use Google\Protobuf\Internal\RepeatedField;
use Google\Protobuf\Internal\GPBUtil;

/**
 * Identifies which input file, track, and channel should be used.
 *
 * Generated from protobuf message <code>google.cloud.video.transcoder.v1beta1.AudioStream.AudioAtom.AudioChannel.AudioChannelInput</code>
 */
class AudioChannelInput extends \Google\Protobuf\Internal\Message
{
    /**
     * Required. The `Input.key` that identifies the input file.
     *
     * Generated from protobuf field <code>string key = 1 [(.google.api.field_behavior) = REQUIRED];</code>
     */
    private $key = '';
    /**
     * Required. The zero-based index of the track in the input file.
     *
     * Generated from protobuf field <code>int32 track = 2 [(.google.api.field_behavior) = REQUIRED];</code>
     */
    private $track = 0;
    /**
     * Required. The zero-based index of the channel in the input file.
     *
     * Generated from protobuf field <code>int32 channel = 3 [(.google.api.field_behavior) = REQUIRED];</code>
     */
    private $channel = 0;
    /**
     * Audio volume control in dB. Negative values decrease volume,
     * positive values increase. The default is 0.
     *
     * Generated from protobuf field <code>double gain_db = 4;</code>
     */
    private $gain_db = 0.0;

    /**
     * Constructor.
     *
     * @param array $data {
     *     Optional. Data for populating the Message object.
     *
     *     @type string $key
     *           Required. The `Input.key` that identifies the input file.
     *     @type int $track
     *           Required. The zero-based index of the track in the input file.
     *     @type int $channel
     *           Required. The zero-based index of the channel in the input file.
     *     @type float $gain_db
     *           Audio volume control in dB. Negative values decrease volume,
     *           positive values increase. The default is 0.
     * }
     */
    public function __construct($data = NULL) {
        \GPBMetadata\Google\Cloud\Video\Transcoder\V1Beta1\Resources::initOnce();
        parent::__construct($data);
    }

    /**
     * Required. The `Input.key` that identifies the input file.
     *
     * Generated from protobuf field <code>string key = 1 [(.google.api.field_behavior) = REQUIRED];</code>
     * @return string
     */
    public function getKey()
    {
        return $this->key;
    }

    /**
     * Required. The `Input.key` that identifies the input file.
     *
     * Generated from protobuf field <code>string key = 1 [(.google.api.field_behavior) = REQUIRED];</code>
     * @param string $var
     * @return $this
     */
    public function setKey($var)
    {
        GPBUtil::checkString($var, True);
        $this->key = $var;

        return $this;
    }

    /**
     * Required. The zero-based index of the track in the input file.
     *
     * Generated from protobuf field <code>int32 track = 2 [(.google.api.field_behavior) = REQUIRED];</code>
     * @return int
     */
    public function getTrack()
    {
        return $this->track;
    }

    /**
     * Required. The zero-based index of the track in the input file.
     *
     * Generated from protobuf field <code>int32 track = 2 [(.google.api.field_behavior) = REQUIRED];</code>
     * @param int $var
     * @return $this
     */
    public function setTrack($var)
    {
        GPBUtil::checkInt32($var);
        $this->track = $var;

        return $this;
    }

    /**
     * Required. The zero-based index of the channel in the input file.
     *
     * Generated from protobuf field <code>int32 channel = 3 [(.google.api.field_behavior) = REQUIRED];</code>
     * @return int
     */
    public function getChannel()
    {
        return $this->channel;
    }

    /**
     * Required. The zero-based index of the channel in the input file.
     *
     * Generated from protobuf field <code>int32 channel = 3 [(.google.api.field_behavior) = REQUIRED];</code>
     * @param int $var
     * @return $this
     */
    public function setChannel($var)
    {
        GPBUtil::checkInt32($var);
        $this->channel = $var;

        return $this;
    }

    /**
     * Audio volume control in dB. Negative values decrease volume,
     * positive values increase. The default is 0.
     *
     * Generated from protobuf field <code>double gain_db = 4;</code>
     * @return float
     */
    public function getGainDb()
    {
        return $this->gain_db;
    }

    /**
     * Audio volume control in dB. Negative values decrease volume,
     * positive values increase. The default is 0.
     *
     * Generated from protobuf field <code>double gain_db = 4;</code>
     * @param float $var
     * @return $this
     */
    public function setGainDb($var)
    {
        GPBUtil::checkDouble($var);
        $this->gain_db = $var;

        return $this;
    }

}

// Adding a class alias for backwards compatibility with the previous class name.
class_alias(AudioChannelInput::class, \Google\Cloud\Video\Transcoder\V1beta1\AudioStream_AudioAtom_AudioChannel_AudioChannelInput::class);

