def __init__(self,
src_type=None,
src_options={},
codecs=get_encoders(),
codec_options={},
volume=1.0):
if not src_type:
try:
from xpra.sound.pulseaudio.pulseaudio_util import get_pa_device_options
monitor_devices = get_pa_device_options(True, False)
log.info("found pulseaudio monitor devices: %s",
monitor_devices)
except ImportError as e:
log.warn("Warning: pulseaudio is not available!")
log.warn(" %s", e)
monitor_devices = []
if len(monitor_devices) == 0:
log.warn("could not detect any pulseaudio monitor devices")
log.warn(" a test source will be used instead")
src_type = "audiotestsrc"
default_src_options = {"wave": 2, "freq": 100, "volume": 0.4}
else:
monitor_device = monitor_devices.items()[0][0]
log.info("using pulseaudio source device:")
log.info(" '%s'", monitor_device)
src_type = "pulsesrc"
default_src_options = {"device": monitor_device}
src_options = default_src_options
if src_type not in get_source_plugins():
raise InitExit(
1, "invalid source plugin '%s', valid options are: %s" %
(src_type, ",".join(get_source_plugins())))
matching = [
x for x in CODEC_ORDER if (x in codecs and x in get_encoders())
]
log("SoundSource(..) found matching codecs %s", matching)
if not matching:
raise InitExit(
1,
"no matching codecs between arguments '%s' and supported list '%s'"
% (csv(codecs), csv(get_encoders().keys())))
codec = matching[0]
encoder, fmt, stream_compressor = get_encoder_elements(codec)
SoundPipeline.__init__(self, codec)
self.queue = None
self.caps = None
self.volume = None
self.sink = None
self.src = None
self.src_type = src_type
self.timestamp = None
self.min_timestamp = 0
self.max_timestamp = 0
self.pending_metadata = []
self.buffer_latency = True
self.jitter_queue = None
self.file = None
self.container_format = (fmt or "").replace("mux",
"").replace("pay", "")
self.stream_compressor = stream_compressor
src_options["name"] = "src"
source_str = plugin_str(src_type, src_options)
#FIXME: this is ugly and relies on the fact that we don't pass any codec options to work!
pipeline_els = [source_str]
log("has plugin(timestamp)=%s", has_plugins("timestamp"))
if has_plugins("timestamp"):
pipeline_els.append("timestamp name=timestamp")
if SOURCE_QUEUE_TIME > 0:
queue_el = [
"queue", "name=queue", "min-threshold-time=0",
"max-size-buffers=0", "max-size-bytes=0",
"max-size-time=%s" % (SOURCE_QUEUE_TIME * MS_TO_NS),
"leaky=%s" % GST_QUEUE_LEAK_DOWNSTREAM
]
pipeline_els += [" ".join(queue_el)]
if encoder in ENCODER_NEEDS_AUDIOCONVERT or src_type in SOURCE_NEEDS_AUDIOCONVERT:
pipeline_els += ["audioconvert"]
if CUTTER_THRESHOLD > 0 and encoder not in ENCODER_CANNOT_USE_CUTTER and not fmt:
pipeline_els.append(
"cutter threshold=%.4f run-length=%i pre-length=%i leaky=false name=cutter"
% (CUTTER_THRESHOLD, CUTTER_RUN_LENGTH * MS_TO_NS,
CUTTER_PRE_LENGTH * MS_TO_NS))
if encoder in CUTTER_NEEDS_CONVERT:
pipeline_els.append("audioconvert")
if encoder in CUTTER_NEEDS_RESAMPLE:
pipeline_els.append("audioresample")
pipeline_els.append("volume name=volume volume=%s" % volume)
if encoder:
encoder_str = plugin_str(
encoder, codec_options or get_encoder_default_options(encoder))
pipeline_els.append(encoder_str)
if fmt:
fmt_str = plugin_str(fmt, MUXER_DEFAULT_OPTIONS.get(fmt, {}))
pipeline_els.append(fmt_str)
pipeline_els.append(APPSINK)
if not self.setup_pipeline_and_bus(pipeline_els):
return
self.timestamp = self.pipeline.get_by_name("timestamp")
self.volume = self.pipeline.get_by_name("volume")
self.sink = self.pipeline.get_by_name("sink")
if SOURCE_QUEUE_TIME > 0:
self.queue = self.pipeline.get_by_name("queue")
if self.queue:
try:
self.queue.set_property("silent", True)
except Exception as e:
log("cannot make queue silent: %s", e)
self.sink.set_property("enable-last-sample", False)
self.skipped_caps = set()
if JITTER > 0:
self.jitter_queue = Queue()
#Gst 1.0:
self.sink.connect("new-sample", self.on_new_sample)
self.sink.connect("new-preroll", self.on_new_preroll)
self.src = self.pipeline.get_by_name("src")
for x in ("actual-buffer-time", "actual-latency-time"):
try:
gstlog("initial %s: %s", x, self.src.get_property(x))
except Exception as e:
gstlog("no %s property on %s: %s", x, self.src, e)
self.buffer_latency = False
#if the env vars have been set, try to honour the settings:
global BUFFER_TIME, LATENCY_TIME
if BUFFER_TIME > 0:
if BUFFER_TIME < LATENCY_TIME:
log.warn(
"Warning: latency (%ims) must be lower than the buffer time (%ims)",
LATENCY_TIME, BUFFER_TIME)
else:
log(
"latency tuning for %s, will try to set buffer-time=%i, latency-time=%i",
src_type, BUFFER_TIME, LATENCY_TIME)
def settime(attr, v):
try:
cval = self.src.get_property(attr)
gstlog("default: %s=%i", attr, cval // 1000)
if v >= 0:
self.src.set_property(attr, v * 1000)
gstlog("overriding with: %s=%i", attr, v)
except Exception as e:
log.warn("source %s does not support '%s': %s",
self.src_type, attr, e)
settime("buffer-time", BUFFER_TIME)
settime("latency-time", LATENCY_TIME)
gen = generation.increase()
if SAVE_TO_FILE is not None:
parts = codec.split("+")
if len(parts) > 1:
filename = SAVE_TO_FILE + str(
gen) + "-" + parts[0] + ".%s" % parts[1]
else:
filename = SAVE_TO_FILE + str(gen) + ".%s" % codec
self.file = open(filename, 'wb')
log.info("saving %s stream to %s", codec, filename)
def __init__(self,
sink_type=None,
sink_options=None,
codecs=(),
codec_options=None,
volume=1.0):
if not sink_type:
sink_type = get_default_sink_plugin()
if sink_type not in get_sink_plugins():
raise InitExit(1, "invalid sink: %s" % sink_type)
matching = [
x for x in CODEC_ORDER if (x in codecs and x in get_decoders())
]
log("SoundSink(..) found matching codecs %s", matching)
if not matching:
raise InitExit(
1,
"no matching codecs between arguments '%s' and supported list '%s'"
% (csv(codecs), csv(get_decoders().keys())))
codec = matching[0]
decoder, parser, stream_compressor = get_decoder_elements(codec)
super().__init__(codec)
self.container_format = (parser
or "").replace("demux",
"").replace("depay", "")
self.sink_type = sink_type
self.stream_compressor = stream_compressor
log("container format=%s, stream_compressor=%s, sink type=%s",
self.container_format, self.stream_compressor, self.sink_type)
self.levels = deque(maxlen=100)
self.volume = None
self.src = None
self.sink = None
self.queue = None
self.normal_volume = volume
self.target_volume = volume
self.volume_timer = 0
self.overruns = 0
self.underruns = 0
self.overrun_events = deque(maxlen=100)
self.queue_state = "starting"
self.last_data = None
self.last_underrun = 0
self.last_overrun = 0
self.refill = True
self.last_max_update = monotonic()
self.last_min_update = monotonic()
self.level_lock = Lock()
pipeline_els = []
appsrc_el = [
"appsrc",
#"do-timestamp=1",
"name=src",
"emit-signals=0",
"block=0",
"is-live=0",
"stream-type=%s" % STREAM_TYPE,
"format=%s" % BUFFER_FORMAT
]
pipeline_els.append(" ".join(appsrc_el))
if parser:
pipeline_els.append(parser)
if decoder:
decoder_str = plugin_str(decoder, codec_options)
pipeline_els.append(decoder_str)
pipeline_els.append("audioconvert")
pipeline_els.append("audioresample")
if QUEUE_TIME > 0:
pipeline_els.append(" ".join([
"queue", "name=queue", "min-threshold-time=0",
"max-size-buffers=0", "max-size-bytes=0",
"max-size-time=%s" % QUEUE_TIME,
"leaky=%s" % QUEUE_LEAK
]))
pipeline_els.append("volume name=volume volume=0")
if CLOCK_SYNC:
if not has_plugins("clocksync"):
log.warn("Warning: cannot enable clocksync, element not found")
else:
pipeline_els.append("clocksync")
sink_attributes = SINK_SHARED_DEFAULT_ATTRIBUTES.copy()
#anything older than this may cause problems (ie: centos 6.x)
#because the attributes may not exist
sink_attributes.update(SINK_DEFAULT_ATTRIBUTES.get(sink_type, {}))
get_options_cb = DEFAULT_SINK_PLUGIN_OPTIONS.get(
sink_type.replace("sink", ""))
if get_options_cb:
v = get_options_cb()
log("%s()=%s", get_options_cb, v)
sink_attributes.update(v)
if sink_options:
sink_attributes.update(sink_options)
sink_attributes["name"] = "sink"
sink_str = plugin_str(sink_type, sink_attributes)
pipeline_els.append(sink_str)
if not self.setup_pipeline_and_bus(pipeline_els):
return
self.volume = self.pipeline.get_by_name("volume")
self.src = self.pipeline.get_by_name("src")
self.sink = self.pipeline.get_by_name("sink")
self.queue = self.pipeline.get_by_name("queue")
if self.queue:
if QUEUE_SILENT:
self.queue.set_property("silent", False)
else:
self.queue.connect("overrun", self.queue_overrun)
self.queue.connect("underrun", self.queue_underrun)
self.queue.connect("running", self.queue_running)
self.queue.connect("pushing", self.queue_pushing)
self.init_file(codec)