diff options
Diffstat (limited to 'mpv.py')
| -rw-r--r-- | mpv.py | 36 |
1 files changed, 27 insertions, 9 deletions
@@ -123,8 +123,12 @@ class ErrorCode(object): -20: lambda *a: RuntimeError('Unspecified error') } @staticmethod + def human_readable(ec): + return _mpv_error_string(ec).decode('utf-8') + + @staticmethod def default_error_handler(ec, *args): - return ValueError(_mpv_error_string(ec).decode('utf-8'), ec, *args) + return ValueError(ErrorCode.human_readable(ec), ec, *args) @classmethod def raise_for_ec(kls, ec, func, *args): @@ -906,12 +910,9 @@ class MPV(object): if eid == MpvEventID.COMMAND_REPLY: key = devent['reply_userdata'] - err = devent['error'] callback = self._event_async_callbacks.pop(key, None) if callback: - callback(err, devent['event']['result']) - elif err: - warn('Error while executing asynchronous command') + callback(devent['error'], devent['event']['result']) if eid == MpvEventID.SHUTDOWN: _mpv_destroy(self._event_handle) @@ -1106,11 +1107,23 @@ class MPV(object): def command_async(self, name, *args, callback=None): """Same as mpv_command, but run the command asynchronously. Once the command ran, the callback will be invoked, - if provided. The first argument of the callback will be a boolean value. It will be set to True, if there was an - error, False else. The second argument of the callback depends on the command. + if provided. The first argument of the callback will be an integer value. If no error occurred this value will + be >= 0. In case of an error this will be a mpv_error value (see mpv.ErrorCode for more information). + The second argument will be the return value of the command or None if the command does not return a value. + + Callback example:: + + def callback(error, result): + try: + mpv.ErrorCode.raise_for_ec(error) + ... # handle normal case + except MemoryError as e: # for example + ... # handle MemoryError + except Exception as e: + ... # catch-all: handle all other exceptions """ + key = self._register_async_callback(name, args, callback) args = _create_null_term_cmd_arg_array(name, args) - key = self._register_async_callback(callback) _mpv_command_async(self._event_handle, key, args) def node_command(self, name, *args, decoder=strict_decoder): @@ -1890,7 +1903,12 @@ class MPV(object): except AttributeError: return None - def _register_async_callback(self, callback): + def _register_async_callback(self, name, args, callback): + if callback is None: + def callback(err, _result): + if err < 0: + warn('Error executing async command \'{} {}\': \'{}\'' + .format(name, ' '.join(repr(arg) for arg in args), ErrorCode.human_readable(err))) with self._event_async_callback_counter_lock: key = self._event_async_callback_counter = (self._event_async_callback_counter + 1) % MPV._UINT_64_MAX self._event_async_callbacks[key] = callback |