From 89e5b420e23eb76393c275be43c082e5410e7f4c Mon Sep 17 00:00:00 2001
From: Nathan Perry <avaglir@gmail.com>
Date: Fri, 28 Jul 2017 19:40:56 -0400
Subject: basic playback working

---
 downloader/downloader.go | 45 ++++++++++++++++++++++++++++++++++++---------
 1 file changed, 36 insertions(+), 9 deletions(-)

(limited to 'downloader')

diff --git a/downloader/downloader.go b/downloader/downloader.go
index 2b3b2f1..76e9f01 100644
--- a/downloader/downloader.go
+++ b/downloader/downloader.go
@@ -9,8 +9,6 @@ import (
 	"io/ioutil"
 	"os"
 
-	"fmt"
-
 	"github.com/mammothbane/thulani-go/wav"
 	"github.com/op/go-logging"
 )
@@ -20,13 +18,40 @@ var log = logging.MustGetLogger("downloader")
 func getUrl(inUrl string) (string, error) {
 	dl := exec.Command("youtube-dl", "-f", "bestaudio", "-x", "--get-url", inUrl)
 
-	b, err := dl.CombinedOutput()
+	outpipe, err := dl.StdoutPipe()
+	if err != nil {
+		return "", err
+	}
+
+	errpipe, err := dl.StderrPipe()
 	if err != nil {
-		log.Errorf("youtube-dl failed: %v", string(b))
 		return "", err
 	}
 
-	tgt, err := url.Parse(string(b))
+	err = dl.Start()
+	if err != nil {
+		log.Errorf("starting youtube-dl failed")
+		return "", err
+	}
+
+	o, ierr := ioutil.ReadAll(outpipe)
+	if ierr != nil {
+		log.Errorf("unable to read from output pipe")
+		return "", err
+	}
+
+	e, ierr := ioutil.ReadAll(errpipe)
+	if ierr != nil {
+		log.Errorf("unable to read from error pipe")
+		return "", err
+	}
+
+	if err := dl.Wait(); err != nil {
+		log.Errorf("error:\n%v", string(e))
+		return "", err
+	}
+
+	tgt, err := url.Parse(string(o))
 	out := tgt.Scheme + "://" + tgt.Host + tgt.Path + "?" + tgt.Query().Encode()
 
 	return out, nil
@@ -61,15 +86,16 @@ func Download(inUrl string, startTime time.Duration, duration time.Duration) (<-
 	}
 
 	clearTemp := func() {
+		if err := file.Close(); err != nil {
+			log.Errorf("error closing temp file: %q", err)
+		}
+
 		if err := os.Remove(file.Name()); err != nil {
 			log.Errorf("unable to remove temp file: %q", err)
 		}
 	}
 
 	args = append(args, file.Name())
-	//args = append(args, "out.wav")
-
-	fmt.Println(args)
 
 	dl := exec.Command(`ffmpeg`, args...)
 	b, err := dl.CombinedOutput()
@@ -79,7 +105,8 @@ func Download(inUrl string, startTime time.Duration, duration time.Duration) (<-
 		return nil, err
 	}
 
-	ch, done, err := wav.Load(file.Name())
+	ch := make(chan []byte, 1024*32)
+	done, err := wav.Load(file.Name(), ch)
 	if err != nil {
 		clearTemp()
 		return nil, err
-- 
cgit v1.3.1