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tools/zmqshell: port to python3
Also extend docs, use argparse and logging.
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@ -1,6 +1,32 @@
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#!/usr/bin/env python2
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#!/usr/bin/env python3
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import argparse
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import cmd
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import logging
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import sys
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import zmq
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HELP = '''
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Provide a shell used to send interactive commands to a zmq filter.
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The command assumes there is a running zmq or azmq filter acting as a
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ZMQ server.
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You can send a command to it, follwing the syntax:
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TARGET COMMAND [COMMAND_ARGS]
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* TARGET is the target filter identifier to send the command to
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* COMMAND is the name of the command sent to the filter
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* COMMAND_ARGS is the optional specification of command arguments
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See the zmq/azmq filters documentation for more details, and the
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zeromq documentation at:
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https://zeromq.org/
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'''
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logging.basicConfig(format='zmqshell|%(levelname)s> %(message)s', level=logging.INFO)
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log = logging.getLogger()
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import sys, zmq, cmd
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class LavfiCmd(cmd.Cmd):
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prompt = 'lavfi> '
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@ -14,13 +40,28 @@ class LavfiCmd(cmd.Cmd):
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def onecmd(self, cmd):
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if cmd == 'EOF':
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sys.exit(0)
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print 'Sending command:[%s]' % cmd
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self.requester.send(cmd)
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message = self.requester.recv()
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print 'Received reply:[%s]' % message
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log.info(f"Sending command: {cmd}")
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self.requester.send_string(cmd)
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response = self.requester.recv_string()
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log.info(f"Received response: {response}")
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try:
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bind_address = sys.argv[1] if len(sys.argv) > 1 else "tcp://localhost:5555"
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LavfiCmd(bind_address).cmdloop('FFmpeg libavfilter interactive shell')
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except KeyboardInterrupt:
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class Formatter(
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argparse.ArgumentDefaultsHelpFormatter, argparse.RawDescriptionHelpFormatter
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):
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pass
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def main():
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parser = argparse.ArgumentParser(description=HELP, formatter_class=Formatter)
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parser.add_argument('--bind-address', '-b', default='tcp://localhost:5555', help='specify bind address used to communicate with ZMQ')
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args = parser.parse_args()
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try:
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LavfiCmd(args.bind_address).cmdloop('FFmpeg libavfilter interactive shell')
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except KeyboardInterrupt:
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pass
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if __name__ == '__main__':
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main()
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