music_fm.py

import io,sys,os
import subprocess
import re

FREQUENCY = "103.3"

def findInYT(search):
	#Local playing will break FM transmitter
	#player = subprocess.call(['cvlc',filename,'--play-and-exit'])
	#player = subprocess.call("omxplayer -o local \"" + filename + "\"", shell=True)

	#We Don't need converting it anymore, we use pipes directly
	#newfilenameraw = filename[:-4]
	#convert = subprocess.call("echo \"y\" | ffmpeg -i \"" + filename + "\" -f wav -acodec pcm_s16le -ar 22050 -ac 1 \"" + newfilenameraw + ".wav\"", shell=True)
	#broadcast = "sudo ./pifm \"" + newfilenameraw + ".wav" + "\" 97.7"

	#filename = "sound.m4a"
	#commandDownload = "youtube-dl \"ytsearch:" + search + "\" -f m4a --audio-format m4a -o \"./sounds/" + filename + "\""
	#down = subprocess.call(commandDownload, shell=True)
	#broadcast = "sox \"" + filename + "\" -t mp3 - channels 1 | avconv -v fatal -i pipe:0 -ac 1 -ar 22050 -b 352k -f wav - | sudo ./pifm - " + FREQUENCY
	#player = subprocess.call(broadcast, shell=True)

	yolo = "youtube-dl --verbose --socket-timeout 1000 \"ytsearch:" + search + "\" -f m4a --audio-format m4a -o - | sox -t m4a /dev/stdin -t mp3 /dev/stdout channels 1 | buffer -s 512k -t -m 32M | ffmpeg -v fatal -i pipe:0 -ac 1 -ar 22050 -b 352k -f s16le - | sudo ./pifm/pifm - " + FREQUENCY + "22050"
	player = subprocess.call(yolo, shell=True)

def getFromYTurl(url):
	yolo = "youtube-dl \"" + url + "\" -f m4a --audio-format m4a -o - | sox -t m4a /dev/stdin -t mp3 /dev/stdout channels 1 | buffer -s 512k -t -m 16M | avconv -v fatal -i pipe:0 -ac 1 -ar 22050 -b 352k -f s16le - | sudo ./pifm/pifm - " + FREQUENCY + "22050"
	player = subprocess.call(yolo, shell=True)

def playFromStream(url):
	if url == "":
		file = "listen.pls"
	else:
		#TODO: grab url and put it into a new .pls file
		file = "yolo"
	yolo = "sox -t mp3 " + file + " -t wav -r 22050 -c 1 - | buffer -s 512k -t -m 16M | avconv -v fatal -i pipe:0 -ac 1 -ar 22050 -b 352k -f s16le - | sudo ./pifm/pifm - " + FREQUENCY + "22050"
	player = subprocess.call(yolo, shell=True)

if __name__ == '__main__':
	if "--stop" in sys.argv:
		player.stdin.write("q")
		raise SystemExit
	elif "--url" in sys.argv:
		url = re.findall('http[s]?://(?:[a-zA-Z]|[0-9]|[$-_@.&+]|[!*\(\),]|(?:%[0-9a-fA-F][0-9a-fA-F]))+', sys.argv[2])[0]
		print url
		getFromYTurl(url)
		raise SystemExit
	elif "--radiotest" in sys.argv:
		playFromStream()
		raise SystemExit
	elif "--radio" in sys.argv:
		if len(sys.argv) == 2:
			#print "argv len = 2"
			url = ""
		else:
			url = sys.argv[2]
		playFromStream(url)
		raise SystemExit
	else:
		findInYT(sys.argv[1])
		raise SystemExit

	if "-h" in sys.argv:
		#helpscr()
		raise SystemExit