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//
// rhimportd
//
// The Radio Helsinki Rivendell Import Daemon
//
//
// Copyright (C) 2015-2016 Christian Pointner <equinox@helsinki.at>
//
// This file is part of rhimportd.
//
// rhimportd is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// any later version.
//
// rhimportd is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with rhimportd. If not, see <http://www.gnu.org/licenses/>.
//
package rhimport
import (
"os"
)
func NormalizeFile(ctx *Context) (err error) {
if ctx.LoudnessCorr == 0.0 {
rhdl.Println("NormalizeFile: skipping normalization since the gain = 0.0dB")
if ctx.ProgressCallBack != nil {
if keep := ctx.ProgressCallBack(2, "normalizing", 1.0, 1.0, ctx.ProgressCallBackData); !keep {
ctx.ProgressCallBack = nil
}
}
return
}
rhl.Printf("NormalizeFile: using gain = %.2f dB", ctx.LoudnessCorr)
ctx.NormalizationLevel = 0 // don't do double normalization
var src *os.File
if src, err = os.Open(ctx.SourceFile); err != nil {
return
}
defer src.Close()
size := int64(0)
if info, err := src.Stat(); err != nil {
return err
} else {
size = info.Size()
}
if ctx.ProgressCallBack != nil {
if keep := ctx.ProgressCallBack(2, "normalizing", 0.0, float64(size), ctx.ProgressCallBackData); !keep {
ctx.ProgressCallBack = nil
}
}
// TODO: call ffmpeg
if ctx.ProgressCallBack != nil {
if keep := ctx.ProgressCallBack(2, "normalizing", float64(size), float64(size), ctx.ProgressCallBackData); !keep {
ctx.ProgressCallBack = nil
}
}
return
}
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