mirror of https://bitbucket.org/ausocean/av.git
311 lines
8.3 KiB
Go
311 lines
8.3 KiB
Go
/*
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NAME
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Config.go
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DESCRIPTION
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See Readme.md
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AUTHORS
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Saxon A. Nelson-Milton <saxon@ausocean.org>
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LICENSE
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Config.go is Copyright (C) 2017-2018 the Australian Ocean Lab (AusOcean)
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It is free software: you can redistribute it and/or modify them
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under the terms of the GNU General Public License as published by the
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Free Software Foundation, either version 3 of the License, or (at your
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option) any later version.
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It is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with revid in gpl.txt. If not, see http://www.gnu.org/licenses.
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*/
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package revid
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import (
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"errors"
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"strconv"
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"bitbucket.org/ausocean/utils/smartlogger"
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)
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// Config provides parameters relevant to a revid instance. A new config must
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// be passed to the constructor.
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type Config struct {
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Input uint8
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InputCodec uint8
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Output1 uint8
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Output2 uint8
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RtmpMethod uint8
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Packetization uint8
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QuantizationMode uint8
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LogLevel int8
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// FlipHorizonatla and FlipVertical specify
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// whether video frames should be flipped.
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FlipHorizontal bool
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FlipVertical bool
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FramesPerClip int
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RtmpUrl string
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Bitrate string
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OutputFileName string
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InputFileName string
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Height string
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Width string
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FrameRate string
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HttpAddress string
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Quantization string
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Timeout string
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IntraRefreshPeriod string
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RtpAddress string
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Logger Logger
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}
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// Enums for config struct
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const (
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NothingDefined = iota
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Raspivid
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H264Codec
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File
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Http
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H264
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Mjpeg
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None
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Mpegts
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Ffmpeg
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Flv
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LibRtmp
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QuantizationOn
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QuantizationOff
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Yes
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No
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Rtmp
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FfmpegRtmp
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Udp
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MpegtsRtp
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Rtp
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)
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// Default config settings
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const (
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defaultInput = Raspivid
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defaultOutput = Http
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defaultPacketization = Flv
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defaultFrameRate = "25"
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defaultWidth = "1280"
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defaultHeight = "720"
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defaultIntraRefreshPeriod = "100"
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defaultTimeout = "0"
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defaultQuantization = "40"
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defaultBitrate = "500000"
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defaultQuantizationMode = QuantizationOff
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defaultFramesPerClip = 1
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defaultVerticalFlip = No
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defaultHorizontalFlip = No
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httpFramesPerClip = 7
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defaultInputCodec = H264
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defaultVerbosity = No
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defaultRtpAddr = "localhost:6970"
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)
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// Validate checks for any errors in the config fields and defaults settings
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// if particular parameters have not been defined.
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func (c *Config) Validate(r *Revid) error {
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switch c.LogLevel {
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case Yes:
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case No:
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case NothingDefined:
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c.LogLevel = defaultVerbosity
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c.Logger.Log(smartlogger.Warning, pkg+"no LogLevel mode defined, defaulting",
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"LogLevel", defaultVerbosity)
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default:
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return errors.New("bad LogLevel defined in config")
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}
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switch c.QuantizationMode {
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case QuantizationOn:
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case QuantizationOff:
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case NothingDefined:
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c.Logger.Log(smartlogger.Warning, pkg+"no quantization mode defined, defaulting",
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"quantizationMode", QuantizationOff)
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c.QuantizationMode = QuantizationOff
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default:
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return errors.New("bad QuantizationMode defined in config")
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}
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switch c.Input {
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case Raspivid:
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case File:
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case NothingDefined:
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c.Logger.Log(smartlogger.Warning, pkg+"no input type defined, defaulting", "input",
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defaultInput)
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c.Input = defaultInput
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default:
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return errors.New("bad input type defined in config")
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}
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switch c.InputCodec {
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case H264:
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if c.Bitrate != "" && c.Quantization != "" {
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bitrate, err := strconv.Atoi(c.Bitrate)
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if err != nil {
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return errors.New("bitrate not an integer")
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}
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quantization, err := strconv.Atoi(c.Quantization)
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if err != nil {
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return errors.New("quantization not an integer")
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}
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if (bitrate > 0 && quantization > 0) || (bitrate == 0 && quantization == 0) {
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return errors.New("bad bitrate and quantization combination for H264 input")
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}
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}
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case Mjpeg:
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if c.Quantization != "" {
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quantization, err := strconv.Atoi(c.Quantization)
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if err != nil {
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return errors.New("quantization not an integer")
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}
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if quantization > 0 || c.Bitrate == "" {
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return errors.New("bad bitrate or quantization for mjpeg input")
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}
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}
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case NothingDefined:
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c.Logger.Log(smartlogger.Warning, pkg+"no input codec defined, defaulting",
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"inputCodec", defaultInputCodec)
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c.InputCodec = defaultInputCodec
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c.Logger.Log(smartlogger.Warning, pkg+"defaulting quantization", "quantization",
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defaultQuantization)
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c.Quantization = defaultQuantization
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default:
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return errors.New("bad input codec defined in config")
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}
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switch c.Output1 {
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case File:
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case Rtp:
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case Udp:
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case Rtmp, FfmpegRtmp:
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if c.RtmpUrl == "" {
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c.Logger.Log(smartlogger.Info, pkg+"no RTMP URL: falling back to HTTP")
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c.Output1 = Http
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break
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}
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c.Logger.Log(smartlogger.Info, pkg+"defaulting frames per clip for rtmp out",
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"framesPerClip", defaultFramesPerClip)
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c.FramesPerClip = defaultFramesPerClip
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case NothingDefined:
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c.Logger.Log(smartlogger.Warning, pkg+"no output defined, defaulting", "output",
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defaultOutput)
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c.Output1 = defaultOutput
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fallthrough
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case Http:
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c.Logger.Log(smartlogger.Info, pkg+"defaulting frames per clip for http out",
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"framesPerClip", httpFramesPerClip)
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c.FramesPerClip = httpFramesPerClip
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default:
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return errors.New("bad output type defined in config")
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}
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switch c.Output2 {
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case File:
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case Rtp:
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case Udp:
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case Rtmp, FfmpegRtmp:
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if c.RtmpUrl == "" {
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c.Logger.Log(smartlogger.Info, pkg+"no RTMP URL: falling back to HTTP")
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c.Output2 = Http
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break
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}
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case NothingDefined:
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case Http:
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default:
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return errors.New("bad output2 type defined in config")
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}
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if c.FramesPerClip < 1 {
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c.Logger.Log(smartlogger.Warning, pkg+"no FramesPerClip defined, defaulting",
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"framesPerClip", defaultFramesPerClip)
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c.FramesPerClip = defaultFramesPerClip
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}
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if c.Width == "" {
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c.Logger.Log(smartlogger.Warning, pkg+"no width defined, defaulting", "width",
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defaultWidth)
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c.Width = defaultWidth
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} else {
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if integer, err := strconv.Atoi(c.Width); integer < 0 || err != nil {
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return errors.New("width not unsigned integer")
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}
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}
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if c.Height == "" {
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c.Logger.Log(smartlogger.Warning, pkg+"no height defined, defaulting", "height",
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defaultHeight)
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c.Height = defaultHeight
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} else {
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if integer, err := strconv.Atoi(c.Height); integer < 0 || err != nil {
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return errors.New("height not unsigned integer")
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}
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}
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if c.FrameRate == "" {
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c.Logger.Log(smartlogger.Warning, pkg+"no frame rate defined, defaulting", "fps",
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defaultFrameRate)
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c.FrameRate = defaultFrameRate
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} else {
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if integer, err := strconv.Atoi(c.FrameRate); integer < 0 || err != nil {
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return errors.New("frame rate not unsigned integer")
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}
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}
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if c.Bitrate == "" {
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c.Logger.Log(smartlogger.Warning, pkg+"no bitrate defined, defaulting", "bitrate",
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defaultBitrate)
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c.Bitrate = defaultBitrate
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} else {
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if integer, err := strconv.Atoi(c.Bitrate); integer < 0 || err != nil {
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return errors.New("bitrate not unsigned integer")
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}
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}
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if c.Timeout == "" {
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c.Logger.Log(smartlogger.Warning, pkg+"no timeout defined, defaulting", "timeout", defaultTimeout)
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c.Timeout = defaultTimeout
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} else {
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if integer, err := strconv.Atoi(c.Timeout); integer < 0 || err != nil {
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return errors.New("timeout not unsigned integer")
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}
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}
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if c.IntraRefreshPeriod == "" {
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c.Logger.Log(smartlogger.Warning, pkg+"no intra refresh defined, defaulting", "intraRefresh",
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defaultIntraRefreshPeriod)
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c.IntraRefreshPeriod = defaultIntraRefreshPeriod
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} else {
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if integer, err := strconv.Atoi(c.IntraRefreshPeriod); integer < 0 || err != nil {
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return errors.New("intra refresh not unsigned integer")
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}
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}
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if c.Quantization == "" {
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c.Logger.Log(smartlogger.Warning, pkg+"no quantization defined, defaulting", "quantization",
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defaultQuantization)
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c.Quantization = defaultQuantization
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} else {
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if integer, err := strconv.Atoi(c.Quantization); integer < 0 || integer > 51 || err != nil {
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return errors.New("quantisation not unsigned integer or is over threshold")
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}
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}
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if c.RtpAddress == "" {
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c.RtpAddress = defaultRtpAddr
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}
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return nil
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}
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