First commit

License.txt

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+Copyright (c) 2016, Mr. Gecko's Media (James Coleman)
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
+
+3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

README.md

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+This is a simple web server to provide now playing data from mpv's JSON IPC server.
+
+#External items needed
+> go get github.com/dwbuiten/go-mediainfo/mediainfo
+
+#How to use
+##Testing
+Run:
+> mpv run mpvNowPLaying.go
+
+##Main use
+Compile with:
+> mpv build mpvNowPLaying.go
+
+Move to system directory:
+> sudo mv mpvNowPlaying /usr/local/bin
+
+Modify mpvNowPlaying.service and move/start:
+> sudo mv mpvNowPlaying.service /etc/systemd/system/
+> systemctl start mpvNowPlaying
+> systemctl enable mpvNowPlaying

mpvNowPlaying.go

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+//
+//  mpvNowPlaying.go
+//  mpvNowPlaying
+//
+//  Created by Mr. Gecko on 4/2/16.
+//  Copyright (c) 2016 Mr. Gecko's Media (James Coleman). All rights reserved. http://mrgeckosmedia.com/
+//
+
+package main
+
+import (
+	"bufio"
+	"encoding/json"
+	"fmt"
+	"github.com/dwbuiten/go-mediainfo/mediainfo"
+	"log"
+	"net"
+	"net/http"
+	"os/user"
+	"path"
+	"time"
+)
+
+func MPVSocket() string {
+	usr, err := user.Current()
+	if err != nil {
+		log.Fatal(err)
+	}
+	return path.Join(usr.HomeDir, ".config/mpv/mpv.sock")
+}
+
+type MPVError struct {
+	s string
+}
+
+func (e *MPVError) Error() string {
+	return e.s
+}
+
+func newMPVError(s string) *MPVError {
+	err := new(MPVError)
+	err.s = s
+	return err
+}
+
+type FloatResult struct {
+	Data  float64 `json:"data"`
+	Error string  `json:"error"`
+}
+
+func GetPropertyFloat(conn net.Conn, propertyName string) (float64, error) {
+	fmt.Fprintln(conn, "{ \"command\": [\"get_property\", \""+propertyName+"\"] }")
+	result, err := bufio.NewReader(conn).ReadBytes('\n')
+	if err != nil {
+		return -1, err
+	}
+
+	floatResult := new(FloatResult)
+
+	err = json.Unmarshal(result, floatResult)
+	if err != nil {
+		log.Fatal("Config file error: ", err)
+	}
+	if floatResult.Error != "success" {
+		return -1, newMPVError(floatResult.Error)
+	}
+	return floatResult.Data, nil
+}
+
+type StringResult struct {
+	Data  string `json:"data"`
+	Error string `json:"error"`
+}
+
+func GetPropertyString(conn net.Conn, propertyName string) (string, error) {
+	fmt.Fprintln(conn, "{ \"command\": [\"get_property_string\", \""+propertyName+"\"] }")
+	result, err := bufio.NewReader(conn).ReadBytes('\n')
+	if err != nil {
+		return "", err
+	}
+
+	stringResult := new(StringResult)
+
+	err = json.Unmarshal(result, stringResult)
+	if err != nil {
+		log.Fatal("Config file error: ", err)
+	}
+	if stringResult.Error != "success" {
+		return "", newMPVError(stringResult.Error)
+	}
+	return stringResult.Data, nil
+}
+
+func SizeToString(size float64) string {
+	sizes := []string{"Bytes", "KB", "MB", "GB", "TB", "PB"}
+	currentSize := 0
+	for size >= 1024 {
+		currentSize++
+		size /= 1024
+	}
+	return fmt.Sprintf("%.02f %s", size, sizes[currentSize])
+}
+
+type MPV struct {
+}
+
+type ReesultData struct {
+	Result string `json:"result"`
+	Error  string `json:"error"`
+}
+
+func (m *MPV) ServeHTTP(writer http.ResponseWriter, request *http.Request) {
+	defer request.Body.Close()
+	writer.Header().Set("Content-Type", "application/json")
+
+	reesultData := new(ReesultData)
+	reesultData.Error = "success"
+
+	conn, err := net.Dial("unix", MPVSocket())
+	if err != nil {
+		reesultData.Error = "Nothing is currently playing"
+		out, _ := json.Marshal(reesultData)
+		writer.Write(out)
+		log.Println(err)
+		return
+	}
+	defer conn.Close()
+	title, err := GetPropertyString(conn, "media-title")
+	if err != nil {
+		reesultData.Error = "Error occured attempting to gather information"
+		out, _ := json.Marshal(reesultData)
+		writer.Write(out)
+		log.Println(err)
+		return
+	}
+
+	playbackTimeFloat, err := GetPropertyFloat(conn, "playback-time")
+	if err != nil {
+		reesultData.Error = "Error occured attempting to gather information"
+		out, _ := json.Marshal(reesultData)
+		writer.Write(out)
+		log.Println(err)
+		return
+	}
+	playbackTime := time.Duration(playbackTimeFloat) * time.Second
+
+	durationFloat, err := GetPropertyFloat(conn, "duration")
+	if err != nil {
+		reesultData.Error = "Error occured attempting to gather information"
+		out, _ := json.Marshal(reesultData)
+		writer.Write(out)
+		log.Println(err)
+		return
+	}
+	duration := time.Duration(durationFloat) * time.Second
+
+	fileSize, err := GetPropertyFloat(conn, "file-size")
+	if err != nil {
+		log.Println(err)
+		return
+	}
+
+	performer := ""
+	album := ""
+	videoFormat, err := GetPropertyString(conn, "video-format")
+	if err != nil {
+		log.Println(err)
+	}
+	if videoFormat == "" {
+		workingDirectory, err := GetPropertyString(conn, "working-directory")
+		if err != nil {
+			log.Println(err)
+		}
+
+		filename, err := GetPropertyString(conn, "filename")
+		if err != nil {
+			log.Println(err)
+		}
+		filePath := path.Join(workingDirectory, filename)
+
+		info, err := mediainfo.Open(filePath)
+		if err != nil {
+			log.Println(err)
+		} else {
+			defer info.Close()
+
+			performer, err = info.Get("Performer", 0, mediainfo.General)
+			if err != nil {
+				log.Println(err)
+			}
+
+			album, err = info.Get("Album", 0, mediainfo.General)
+			if err != nil {
+				log.Println(err)
+			}
+		}
+	}
+
+	reesultData.Result = fmt.Sprintf("Now playing %v %v %v / %v (%d%%)", title, SizeToString(fileSize), playbackTime, duration, int64((playbackTimeFloat/durationFloat)*100))
+	if performer != "" {
+		reesultData.Result = fmt.Sprintf("Now playing %v by %v from %v %v %v / %v (%d%%)", title, performer, album, SizeToString(fileSize), playbackTime, duration, int64((playbackTimeFloat/durationFloat)*100))
+	}
+	out, _ := json.Marshal(reesultData)
+	writer.Write(out)
+}
+
+func main() {
+	mediainfo.Init()
+
+	mpv := new(MPV)
+
+	if err := http.ListenAndServe(":7076", mpv); err != nil {
+		log.Fatal(err)
+	}
+}

mpvNowPlaying.service

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+[Unit]
+Description=MPV Now Playing
+After=network.target
+
+[Service]
+User=grmrgecko
+Type=simple
+ExecStart=/usr/local/bin/mpvNowPlaying
+
+[Install]
+WantedBy=multi-user.target