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transcriber: refactor ffmpeg args format #1535

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transcriber: refactor ffmpeg args format #1535

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6 changes: 2 additions & 4 deletions python/vosk/transcriber/transcriber.py
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Original file line number Diff line number Diff line change
Expand Up @@ -112,14 +112,12 @@ def format_result(self, result, words_per_line=7):
return processed_result

def resample_ffmpeg(self, infile):
cmd = shlex.split("ffmpeg -nostdin -loglevel quiet "
"-i \'{}\' -ar {} -ac 1 -f s16le -".format(str(infile), SAMPLE_RATE))
cmd = ["ffmpeg", "-nostdin", "-loglevel", "quiet", "-i", str(infile), "-ar", str(SAMPLE_RATE), "-ac", "1", "-f", "s16le", "-"]
stream = subprocess.Popen(cmd, stdout=subprocess.PIPE)
return stream

async def resample_ffmpeg_async(self, infile):
cmd = "ffmpeg -nostdin -loglevel quiet "\
"-i \'{}\' -ar {} -ac 1 -f s16le -".format(str(infile), SAMPLE_RATE)
cmd = ["ffmpeg", "-nostdin", "-loglevel", "quiet", "-i", str(infile), "-ar", str(SAMPLE_RATE), "-ac", "1", "-f", "s16le", "-"]
return await asyncio.create_subprocess_shell(cmd, stdout=subprocess.PIPE)

async def server_worker(self):
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