39 lines
1.1 KiB
Python
39 lines
1.1 KiB
Python
import ffmpeg
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from logger import logger
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from stream_listener import StreamListener
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from stream import StreamSource
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import os
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fifoFile = 'transcode-fifo'
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# converts the stream to mp3 before sending to the long-lasting mp3 connection
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# write to a fifo file instead of directly via stdin to fool ffmpeg into thinking it has seekable input
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# https://lists.libav.org/pipermail/ffmpeg-user/2007-May/008917.html
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class Transcoder(StreamSource):
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def __init__(self, upstream):
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if os.path.exists(fifoFile):
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os.remove(fifoFile)
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os.mkfifo(fifoFile)
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self.process = ( ffmpeg
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.input(fifoFile)
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.output('pipe:', format='mp3')
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.run_async(pipe_stdout=True, pipe_stderr=True)
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)
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logger.add(self.process.stderr, "transcoder.log")
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self.listener = StreamListener(upstream, self)
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self.listener.start()
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self.file = open(fifoFile, 'wb')
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def stop(self):
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self.file.close()
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self.listener.stop()
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self.process.stdout.close()
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self.process.stderr.close()
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os.remove(fifoFile)
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def getStream(self):
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return self.process.stdout
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def write(self, chunk):
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self.file.write(chunk) |