From: Paul Brossier Date: Sun, 8 Dec 2013 16:49:46 +0000 (-0500) Subject: python/: moved old gst hack to python.old for now X-Git-Tag: 0.4.0-beta1~4 X-Git-Url: https://git.aubio.org/?a=commitdiff_plain;h=6bc52ccb94437b5b0f1e5eb450d56aa1b23aa9b3;p=aubio.git python/: moved old gst hack to python.old for now --- diff --git a/python.old/aubioinput.py b/python.old/aubioinput.py new file mode 100644 index 00000000..80bc9e4b --- /dev/null +++ b/python.old/aubioinput.py @@ -0,0 +1,141 @@ +#! /usr/bin/python + +import pygst +pygst.require('0.10') +import gst +import gobject +gobject.threads_init () + +def gst_buffer_to_numpy_array(buffer, chan): + import numpy + samples = numpy.frombuffer(buffer.data, dtype=numpy.float32) + if chan == 1: + return samples.T + else: + samples.resize([len(samples)/chan, chan]) + return samples.T + +class AubioSink(gst.BaseSink): + _caps = gst.caps_from_string('audio/x-raw-float, \ + rate=[ 1, 2147483647 ], \ + channels=[ 1, 2147483647 ], \ + endianness={ 1234, 4321 }, \ + width=32') + + __gsttemplates__ = ( + gst.PadTemplate ("sink", + gst.PAD_SINK, + gst.PAD_ALWAYS, + _caps), + ) + + def __init__(self, name, process): + self.__gobject_init__() + self.set_name(name) + self.process = process + self.adapter = gst.Adapter() + self.set_property('sync', False) + self.pos = 0 + + def set_property(self, name, value): + if name == 'hopsize': + # blocksize is in byte, convert from hopsize + from struct import calcsize + self.set_property('blocksize', value * calcsize('f')) + else: + super(gst.BaseSink, self).set_property(name, value) + + def do_render(self, buffer): + blocksize = self.get_property('blocksize') + caps = buffer.get_caps() + chan = caps[0]['channels'] + self.adapter.push(buffer) + while self.adapter.available() >= blocksize: + block = self.adapter.take_buffer(blocksize) + v = gst_buffer_to_numpy_array(block, chan) + if self.process: + self.process(v, self.pos) + self.pos += 1 + remaining = self.adapter.available() + if remaining < blocksize and remaining > 0: + block = self.adapter.take_buffer(remaining) + v = gst_buffer_to_numpy_array(block, chan) + if self.process: + self.process(v, self.pos) + self.pos += 1 + return gst.FLOW_OK + +gobject.type_register(AubioSink) + +class aubioinput(gst.Bin): + + ret = 0 + + def __init__(self, uri, process = None, hopsize = 512, + caps = None): + if uri.startswith('/'): + from urllib import quote + uri = 'file://'+quote(uri) + src = gst.element_factory_make('uridecodebin') + src.set_property('uri', uri) + src.connect('pad-added', self.source_pad_added_cb) + conv = gst.element_factory_make('audioconvert') + self.conv = conv + rsmpl = gst.element_factory_make('audioresample') + capsfilter = gst.element_factory_make('capsfilter') + if caps: + capsfilter.set_property('caps', gst.caps_from_string(caps)) + sink = AubioSink("AubioSink", process = process) + sink.set_property('hopsize', hopsize) # * calcsize('f')) + + self.pipeline = gst.Pipeline() + + self.bus = self.pipeline.get_bus() + self.bus.add_signal_watch() + self.bus.connect('message', self.on_eos) + + self.apad = conv.get_pad('sink') + + self.pipeline.add(src, conv, rsmpl, capsfilter, sink) + + gst.element_link_many(conv, rsmpl, capsfilter, sink) + + self.mainloop = gobject.MainLoop() + self.pipeline.set_state(gst.STATE_PLAYING) + + def run(self): + self.mainloop.run() + return self.ret + + def source_pad_added_cb(self, src, pad): + name = pad.get_caps()[0].get_name() + if name == 'audio/x-raw-float' or name == 'audio/x-raw-int': + pad.link(self.conv.get_pad("sink")) + + def source_pad_removed_cb(self, src, pad): + pad.unlink(self.conv.get_pad("sink")) + + def on_eos(self, bus, msg): + if msg.type == gst.MESSAGE_EOS: + self.bus.remove_signal_watch() + self.pipeline.set_state(gst.STATE_PAUSED) + self.mainloop.quit() + elif msg.type == gst.MESSAGE_ERROR: + print "ERROR", msg.parse_error() + self.bus.remove_signal_watch() + self.pipeline.set_state(gst.STATE_PAUSED) + self.mainloop.quit() + self.ret = 1 # set return value to 1 in case of error + +if __name__ == '__main__': + import sys + if len(sys.argv) < 2: + print "Usage: %s " % sys.argv[0] + sys.exit(1) + for filename in sys.argv[1:]: + peak = [0.] # use a mutable + def process(buf, hop): + peak[0] = max( peak[0], abs(buf.max()) ) + a = aubioinput(filename, process = process, hopsize = 512) + if a.run() == 0: # only display the results if no + print "Finished reading %s, peak value is %f" % (filename, max(peak)) diff --git a/python/aubioinput.py b/python/aubioinput.py deleted file mode 100644 index 80bc9e4b..00000000 --- a/python/aubioinput.py +++ /dev/null @@ -1,141 +0,0 @@ -#! /usr/bin/python - -import pygst -pygst.require('0.10') -import gst -import gobject -gobject.threads_init () - -def gst_buffer_to_numpy_array(buffer, chan): - import numpy - samples = numpy.frombuffer(buffer.data, dtype=numpy.float32) - if chan == 1: - return samples.T - else: - samples.resize([len(samples)/chan, chan]) - return samples.T - -class AubioSink(gst.BaseSink): - _caps = gst.caps_from_string('audio/x-raw-float, \ - rate=[ 1, 2147483647 ], \ - channels=[ 1, 2147483647 ], \ - endianness={ 1234, 4321 }, \ - width=32') - - __gsttemplates__ = ( - gst.PadTemplate ("sink", - gst.PAD_SINK, - gst.PAD_ALWAYS, - _caps), - ) - - def __init__(self, name, process): - self.__gobject_init__() - self.set_name(name) - self.process = process - self.adapter = gst.Adapter() - self.set_property('sync', False) - self.pos = 0 - - def set_property(self, name, value): - if name == 'hopsize': - # blocksize is in byte, convert from hopsize - from struct import calcsize - self.set_property('blocksize', value * calcsize('f')) - else: - super(gst.BaseSink, self).set_property(name, value) - - def do_render(self, buffer): - blocksize = self.get_property('blocksize') - caps = buffer.get_caps() - chan = caps[0]['channels'] - self.adapter.push(buffer) - while self.adapter.available() >= blocksize: - block = self.adapter.take_buffer(blocksize) - v = gst_buffer_to_numpy_array(block, chan) - if self.process: - self.process(v, self.pos) - self.pos += 1 - remaining = self.adapter.available() - if remaining < blocksize and remaining > 0: - block = self.adapter.take_buffer(remaining) - v = gst_buffer_to_numpy_array(block, chan) - if self.process: - self.process(v, self.pos) - self.pos += 1 - return gst.FLOW_OK - -gobject.type_register(AubioSink) - -class aubioinput(gst.Bin): - - ret = 0 - - def __init__(self, uri, process = None, hopsize = 512, - caps = None): - if uri.startswith('/'): - from urllib import quote - uri = 'file://'+quote(uri) - src = gst.element_factory_make('uridecodebin') - src.set_property('uri', uri) - src.connect('pad-added', self.source_pad_added_cb) - conv = gst.element_factory_make('audioconvert') - self.conv = conv - rsmpl = gst.element_factory_make('audioresample') - capsfilter = gst.element_factory_make('capsfilter') - if caps: - capsfilter.set_property('caps', gst.caps_from_string(caps)) - sink = AubioSink("AubioSink", process = process) - sink.set_property('hopsize', hopsize) # * calcsize('f')) - - self.pipeline = gst.Pipeline() - - self.bus = self.pipeline.get_bus() - self.bus.add_signal_watch() - self.bus.connect('message', self.on_eos) - - self.apad = conv.get_pad('sink') - - self.pipeline.add(src, conv, rsmpl, capsfilter, sink) - - gst.element_link_many(conv, rsmpl, capsfilter, sink) - - self.mainloop = gobject.MainLoop() - self.pipeline.set_state(gst.STATE_PLAYING) - - def run(self): - self.mainloop.run() - return self.ret - - def source_pad_added_cb(self, src, pad): - name = pad.get_caps()[0].get_name() - if name == 'audio/x-raw-float' or name == 'audio/x-raw-int': - pad.link(self.conv.get_pad("sink")) - - def source_pad_removed_cb(self, src, pad): - pad.unlink(self.conv.get_pad("sink")) - - def on_eos(self, bus, msg): - if msg.type == gst.MESSAGE_EOS: - self.bus.remove_signal_watch() - self.pipeline.set_state(gst.STATE_PAUSED) - self.mainloop.quit() - elif msg.type == gst.MESSAGE_ERROR: - print "ERROR", msg.parse_error() - self.bus.remove_signal_watch() - self.pipeline.set_state(gst.STATE_PAUSED) - self.mainloop.quit() - self.ret = 1 # set return value to 1 in case of error - -if __name__ == '__main__': - import sys - if len(sys.argv) < 2: - print "Usage: %s " % sys.argv[0] - sys.exit(1) - for filename in sys.argv[1:]: - peak = [0.] # use a mutable - def process(buf, hop): - peak[0] = max( peak[0], abs(buf.max()) ) - a = aubioinput(filename, process = process, hopsize = 512) - if a.run() == 0: # only display the results if no - print "Finished reading %s, peak value is %f" % (filename, max(peak))