async def probe(filename, cmd='ffprobe', **kwargs):
# https://gist.github.com/fedej/7f848d20205efbff4db4a0fc78eae7ba
args = [cmd, '-show_format', '-show_streams', '-of', 'json']
args += convert_kwargs_to_cmd_line_args(kwargs)
args += [filename]
p = await create_subprocess_exec(*args,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
coroutine = p.communicate()
out, err = await coroutine
if p.returncode != 0:
raise Error('ffprobe', out, err)
return json.loads(out.decode('utf-8'))
async def run(stream_spec,
cmd='ffmpeg',
pipe_stdin=False,
pipe_stdout=False,
pipe_stderr=False,
input_file=None,
quiet=True,
overwrite_output=True):
# https://gist.github.com/fedej/7f848d20205efbff4db4a0fc78eae7ba
args = ffmpg_compile(stream_spec, cmd, overwrite_output=overwrite_output)
stdin_stream = subprocess.PIPE if pipe_stdin else None
stdout_stream = subprocess.PIPE if pipe_stdout or quiet else None
stderr_stream = subprocess.PIPE if pipe_stderr or quiet else None
p = await create_subprocess_exec(*args,
stdin=stdin_stream,
stdout=stdout_stream,
stderr=stderr_stream)
out, err = await p.communicate(input_file)
if p.returncode != 0:
raise Error('ffmpeg', out, err)
return out, err