update singledecodebin to latest version from pitivi
This commit is contained in:
j
parent
beac2e5fbb
commit
fd238eddb5
7
README
7
README
|
|
@ -1,4 +1,9 @@
|
|||
oxgt-tools
|
||||
oxtools
|
||||
|
||||
depends on gstreamer 0.10.30 or newer
|
||||
|
||||
on ubuntu 10.04 you need
|
||||
sudo add-apt-repository ppa:gstreamer-developers/ppa
|
||||
|
||||
Tools
|
||||
oxframe
|
||||
|
|
|
|||
|
|
@ -1,67 +1,64 @@
|
|||
# -*- coding: utf-8 -*-
|
||||
# vi:si:et:sw=4:sts=4:ts=4
|
||||
# GPL 2008
|
||||
|
||||
import gobject
|
||||
|
||||
import pygst
|
||||
pygst.require("0.10")
|
||||
import gst
|
||||
import Image
|
||||
|
||||
from singledecodebin import SingleDecodeBin
|
||||
|
||||
|
||||
class ImageSink(gst.BaseSink):
|
||||
|
||||
__gsignals__ = {
|
||||
"frame" : (gobject.SIGNAL_RUN_LAST,
|
||||
gobject.TYPE_NONE,
|
||||
( gobject.TYPE_PYOBJECT, gobject.TYPE_UINT64 ))
|
||||
}
|
||||
|
||||
__gsttemplates__ = (
|
||||
gst.PadTemplate ("sink",
|
||||
gst.PAD_SINK,
|
||||
gst.PAD_ALWAYS,
|
||||
gst.Caps("video/x-raw-rgb,"
|
||||
"bpp = (int) 24, depth = (int) 24,"
|
||||
"endianness = (int) BIG_ENDIAN,"
|
||||
"red_mask = (int) 0x00FF0000, "
|
||||
"green_mask = (int) 0x0000FF00, "
|
||||
"blue_mask = (int) 0x000000FF, "
|
||||
"width = (int) [ 1, max ], "
|
||||
"height = (int) [ 1, max ], "
|
||||
"framerate = (fraction) [ 0, max ]"))
|
||||
)
|
||||
|
||||
def __init__(self):
|
||||
gst.BaseSink.__init__(self)
|
||||
self.width = 1
|
||||
self.height = 1
|
||||
self.set_sync(False)
|
||||
|
||||
def do_set_caps(self, caps):
|
||||
self.log("caps %s" % caps.to_string())
|
||||
self.log("padcaps %s" % self.get_pad("sink").get_caps().to_string())
|
||||
self.width = caps[0]["width"]
|
||||
self.height = caps[0]["height"]
|
||||
self.framerate = caps[0]["framerate"]
|
||||
|
||||
if not caps[0].get_name() == "video/x-raw-rgb":
|
||||
return False
|
||||
return True
|
||||
|
||||
def do_render(self, buf):
|
||||
self.log("buffer %s %d" % (gst.TIME_ARGS(buf.timestamp),
|
||||
len(buf.data)))
|
||||
|
||||
frame = Image.fromstring('RGB', (self.width, self.height), buf.data)
|
||||
self.emit('frame', frame, buf.timestamp)
|
||||
return gst.FLOW_OK
|
||||
|
||||
def do_preroll(self, buf):
|
||||
return self.do_render(buf)
|
||||
|
||||
gobject.type_register(ImageSink)
|
||||
|
||||
# GPL 2008
|
||||
|
||||
import gobject
|
||||
|
||||
import pygst
|
||||
pygst.require("0.10")
|
||||
import gst
|
||||
import Image
|
||||
|
||||
class ImageSink(gst.BaseSink):
|
||||
|
||||
__gsignals__ = {
|
||||
"frame" : (gobject.SIGNAL_RUN_LAST,
|
||||
gobject.TYPE_NONE,
|
||||
( gobject.TYPE_PYOBJECT, gobject.TYPE_UINT64 ))
|
||||
}
|
||||
|
||||
__gsttemplates__ = (
|
||||
gst.PadTemplate ("sink",
|
||||
gst.PAD_SINK,
|
||||
gst.PAD_ALWAYS,
|
||||
gst.Caps("video/x-raw-rgb,"
|
||||
"bpp = (int) 24, depth = (int) 24,"
|
||||
"endianness = (int) BIG_ENDIAN,"
|
||||
"red_mask = (int) 0x00FF0000, "
|
||||
"green_mask = (int) 0x0000FF00, "
|
||||
"blue_mask = (int) 0x000000FF, "
|
||||
"width = (int) [ 1, max ], "
|
||||
"height = (int) [ 1, max ], "
|
||||
"framerate = (fraction) [ 0, max ]"))
|
||||
)
|
||||
|
||||
def __init__(self):
|
||||
gst.BaseSink.__init__(self)
|
||||
self.width = 1
|
||||
self.height = 1
|
||||
self.set_sync(False)
|
||||
|
||||
def do_set_caps(self, caps):
|
||||
self.log("caps %s" % caps.to_string())
|
||||
self.log("padcaps %s" % self.get_pad("sink").get_caps().to_string())
|
||||
self.width = caps[0]["width"]
|
||||
self.height = caps[0]["height"]
|
||||
self.framerate = caps[0]["framerate"]
|
||||
|
||||
if not caps[0].get_name() == "video/x-raw-rgb":
|
||||
return False
|
||||
return True
|
||||
|
||||
def do_render(self, buf):
|
||||
self.log("buffer %s %d" % (gst.TIME_ARGS(buf.timestamp),
|
||||
len(buf.data)))
|
||||
|
||||
frame = Image.fromstring('RGB', (self.width, self.height), buf.data)
|
||||
self.emit('frame', frame, buf.timestamp)
|
||||
return gst.FLOW_OK
|
||||
|
||||
def do_preroll(self, buf):
|
||||
return self.do_render(buf)
|
||||
|
||||
gobject.type_register(ImageSink)
|
||||
|
||||
|
|
|
|||
|
|
@ -28,6 +28,38 @@ Single-stream queue-less decodebin
|
|||
import gobject
|
||||
import gst
|
||||
|
||||
|
||||
class CachedFactoryList(object):
|
||||
def __init__(self, factoryFilter=None):
|
||||
self._factoryFilter = factoryFilter
|
||||
self._factories = None
|
||||
self._registry = gst.registry_get_default()
|
||||
self._registry.connect("feature-added", self._registryFeatureAddedCb)
|
||||
|
||||
def get(self):
|
||||
if self._factories is None:
|
||||
self._buildFactories()
|
||||
|
||||
return self._factories
|
||||
|
||||
def _buildFactories(self):
|
||||
# build the cache
|
||||
#log.debug("utils", "Getting factories list")
|
||||
factories = self._registry.get_feature_list(gst.ElementFactory)
|
||||
if self._factoryFilter is not None:
|
||||
#log.debug("utils", "filtering")
|
||||
factories = filter(self._factoryFilter, factories)
|
||||
|
||||
#log.debug("utils", "Sorting by rank")
|
||||
factories.sort(key=lambda factory: factory.get_rank(), reverse=True)
|
||||
self._factories = factories
|
||||
#log.debug("utils", "Cached factories is now %r", self._factories)
|
||||
|
||||
def _registryFeatureAddedCb(self, registry, feature):
|
||||
# invalidate the cache
|
||||
#log.warning("utils", "New feature added, invalidating cached factories")
|
||||
self._factories = None
|
||||
|
||||
def is_raw(caps):
|
||||
""" returns True if the caps are RAW """
|
||||
rep = caps.to_string()
|
||||
|
|
@ -37,7 +69,28 @@ def is_raw(caps):
|
|||
return True
|
||||
return False
|
||||
|
||||
def factoryFilter(factory):
|
||||
if factory.get_rank() < 64 :
|
||||
return False
|
||||
|
||||
klass = factory.get_klass()
|
||||
for cat in ("Demuxer", "Decoder", "Parse"):
|
||||
if cat in klass:
|
||||
return True
|
||||
|
||||
return False
|
||||
|
||||
_factoryCache = CachedFactoryList(factoryFilter)
|
||||
|
||||
class SingleDecodeBin(gst.Bin):
|
||||
"""
|
||||
A variant of decodebin.
|
||||
|
||||
* Only outputs one stream
|
||||
* Doesn't contain any internal queue
|
||||
"""
|
||||
|
||||
QUEUE_SIZE = 1 * gst.SECOND
|
||||
|
||||
__gsttemplates__ = (
|
||||
gst.PadTemplate ("sinkpadtemplate",
|
||||
|
|
@ -49,11 +102,13 @@ class SingleDecodeBin(gst.Bin):
|
|||
gst.PAD_SOMETIMES,
|
||||
gst.caps_new_any())
|
||||
)
|
||||
def __init__(self, caps=None, uri=None, *args, **kwargs):
|
||||
|
||||
def __init__(self, caps=None, uri=None, stream=None, *args, **kwargs):
|
||||
gst.Bin.__init__(self, *args, **kwargs)
|
||||
if not caps:
|
||||
caps = gst.caps_new_any()
|
||||
self.caps = caps
|
||||
self.stream = stream
|
||||
self.typefind = gst.element_factory_make("typefind", "internal-typefind")
|
||||
self.add(self.typefind)
|
||||
|
||||
|
|
@ -63,7 +118,11 @@ class SingleDecodeBin(gst.Bin):
|
|||
self.log("created urisrc %s / %r" % (self.urisrc.get_name(),
|
||||
self.urisrc))
|
||||
self.add(self.urisrc)
|
||||
self.urisrc.link(self.typefind)
|
||||
# Set the blocksize to 512kbytes, this will only matter for push-based sources
|
||||
if hasattr(self.urisrc.props, "blocksize"):
|
||||
self.urisrc.props.blocksize = 524288
|
||||
self.urisrc.link_pads_full("src", self.typefind, "sink",
|
||||
gst.PAD_LINK_CHECK_NOTHING)
|
||||
else:
|
||||
self._sinkpad = gst.GhostPad("sink", self.typefind.get_pad("sink"))
|
||||
self._sinkpad.set_active(True)
|
||||
|
|
@ -77,8 +136,10 @@ class SingleDecodeBin(gst.Bin):
|
|||
|
||||
self._validelements = [] #added elements
|
||||
|
||||
self._factories = self._getSortedFactoryList()
|
||||
self.debug("stream:%r" % self.stream)
|
||||
|
||||
self.pending_newsegment = False
|
||||
self.eventProbeId = None
|
||||
|
||||
## internal methods
|
||||
|
||||
|
|
@ -88,23 +149,6 @@ class SingleDecodeBin(gst.Bin):
|
|||
element.connect("pad-added", self._dynamicPadAddedCb)
|
||||
element.connect("no-more-pads", self._dynamicNoMorePadsCb)
|
||||
|
||||
def _getSortedFactoryList(self):
|
||||
"""
|
||||
Returns the list of demuxers, decoders and parsers available, sorted
|
||||
by rank
|
||||
"""
|
||||
def myfilter(fact):
|
||||
if fact.get_rank() < 64 :
|
||||
return False
|
||||
klass = fact.get_klass()
|
||||
if not ("Demuxer" in klass or "Decoder" in klass or "Parse" in klass):
|
||||
return False
|
||||
return True
|
||||
reg = gst.registry_get_default()
|
||||
res = [x for x in reg.get_feature_list(gst.ElementFactory) if myfilter(x)]
|
||||
res.sort(lambda a, b: int(b.get_rank() - a.get_rank()))
|
||||
return res
|
||||
|
||||
def _findCompatibleFactory(self, caps):
|
||||
"""
|
||||
Returns a list of factories (sorted by rank) which can take caps as
|
||||
|
|
@ -112,7 +156,7 @@ class SingleDecodeBin(gst.Bin):
|
|||
"""
|
||||
self.debug("caps:%s" % caps.to_string())
|
||||
res = []
|
||||
for factory in self._factories:
|
||||
for factory in _factoryCache.get():
|
||||
for template in factory.get_static_pad_templates():
|
||||
if template.direction == gst.PAD_SINK:
|
||||
intersect = caps.intersect(template.static_caps.get())
|
||||
|
|
@ -153,6 +197,35 @@ class SingleDecodeBin(gst.Bin):
|
|||
for pad in to_connect:
|
||||
self._closePadLink(element, pad, pad.get_caps())
|
||||
|
||||
def _isDemuxer(self, element):
|
||||
if not 'Demux' in element.get_factory().get_klass():
|
||||
return False
|
||||
|
||||
potential_src_pads = 0
|
||||
for template in element.get_pad_template_list():
|
||||
if template.direction != gst.PAD_SRC:
|
||||
continue
|
||||
|
||||
if template.presence == gst.PAD_REQUEST or \
|
||||
"%" in template.name_template:
|
||||
potential_src_pads += 2
|
||||
break
|
||||
else:
|
||||
potential_src_pads += 1
|
||||
|
||||
return potential_src_pads > 1
|
||||
|
||||
def _plugDecodingQueue(self, pad):
|
||||
queue = gst.element_factory_make("queue")
|
||||
queue.props.max_size_time = self.QUEUE_SIZE
|
||||
queue.props.max_size_buffers = 3
|
||||
self.add(queue)
|
||||
queue.sync_state_with_parent()
|
||||
pad.link_full(queue.get_pad("sink"), gst.PAD_LINK_CHECK_NOTHING)
|
||||
pad = queue.get_pad("src")
|
||||
|
||||
return pad
|
||||
|
||||
def _tryToLink1(self, source, pad, factories):
|
||||
"""
|
||||
Tries to link one of the factories' element to the given pad.
|
||||
|
|
@ -162,6 +235,10 @@ class SingleDecodeBin(gst.Bin):
|
|||
self.debug("source:%s, pad:%s , factories:%r" % (source.get_name(),
|
||||
pad.get_name(),
|
||||
factories))
|
||||
|
||||
if self._isDemuxer(source):
|
||||
pad = self._plugDecodingQueue(pad)
|
||||
|
||||
result = None
|
||||
for factory in factories:
|
||||
element = factory.create()
|
||||
|
|
@ -174,6 +251,7 @@ class SingleDecodeBin(gst.Bin):
|
|||
continue
|
||||
|
||||
self.add(element)
|
||||
element.set_state(gst.STATE_READY)
|
||||
try:
|
||||
pad.link(sinkpad)
|
||||
except:
|
||||
|
|
@ -204,10 +282,17 @@ class SingleDecodeBin(gst.Bin):
|
|||
if caps.is_any():
|
||||
self.log("type is not know yet, waiting")
|
||||
return
|
||||
if caps.intersect(self.caps):
|
||||
|
||||
self.debug("stream %r" % (self.stream))
|
||||
if caps.intersect(self.caps) and (self.stream is None or
|
||||
(self.stream.pad_name == get_pad_id(pad))):
|
||||
# This is the desired caps
|
||||
if not self._srcpad:
|
||||
self._wrapUp(element, pad)
|
||||
elif is_raw(caps) and pad_compatible_stream(pad, self.stream):
|
||||
self.log ("not the target stream, but compatible")
|
||||
if not self._srcpad:
|
||||
self._wrapUp(element, pad)
|
||||
elif is_raw(caps):
|
||||
self.log("We hit a raw caps which isn't the wanted one")
|
||||
# FIXME : recursively remove everything until demux/typefind
|
||||
|
|
@ -232,13 +317,64 @@ class SingleDecodeBin(gst.Bin):
|
|||
if self._srcpad:
|
||||
return
|
||||
self._markValidElements(element)
|
||||
self._removeUnusedElements(self.typefind)
|
||||
self.log("ghosting pad %s" % pad.get_name)
|
||||
gobject.idle_add(self._removeUnusedElements, self.typefind)
|
||||
if pad.props.caps is not None:
|
||||
caps = pad.props.caps
|
||||
else:
|
||||
caps = pad.get_caps()
|
||||
|
||||
self._srcpad = gst.GhostPad("src", pad)
|
||||
self._srcpad.set_active(True)
|
||||
|
||||
if caps.is_fixed():
|
||||
self._exposePad(target=pad)
|
||||
else:
|
||||
self._blockPad(target=pad)
|
||||
|
||||
def _exposePad(self, target):
|
||||
self.log("ghosting pad %s" % target.get_name())
|
||||
self.add_pad(self._srcpad)
|
||||
self.post_message(gst.message_new_state_dirty(self))
|
||||
|
||||
def _blockPad(self, target):
|
||||
# don't pass target as an argument to set_blocked_async. Avoids
|
||||
# triggering a bug in gst-python where pad_block_destroy_data calls
|
||||
# CPython without acquiring the GIL
|
||||
self._target = target
|
||||
self._eventProbeId = target.add_event_probe(self._padEventCb)
|
||||
self._srcpad.set_blocked_async(True, self._padBlockedCb)
|
||||
|
||||
def _unblockPad(self, target):
|
||||
target.remove_event_probe(self._eventProbeId)
|
||||
self._eventProbeId = None
|
||||
self._srcpad.set_blocked_async(False, self._padBlockedCb)
|
||||
|
||||
def _padBlockedCb(self, ghost, blocked):
|
||||
if not blocked:
|
||||
if self.pending_newsegment is not None:
|
||||
self._srcpad.push_event(self.pending_newsegment)
|
||||
self.pending_newsegment = None
|
||||
return
|
||||
|
||||
self._exposePad(target=self._target)
|
||||
self._unblockPad(target=self._target)
|
||||
|
||||
def _padEventCb(self, pad, event):
|
||||
if event.type == gst.EVENT_TAG:
|
||||
self.debug("dropping TAG event")
|
||||
return False
|
||||
|
||||
if event.type != gst.EVENT_NEWSEGMENT:
|
||||
self.warning("first event: %s is not a NEWSEGMENT, bailing out" %
|
||||
event)
|
||||
self._exposePad(target=pad)
|
||||
self._unblockPad(target=pad)
|
||||
return True
|
||||
|
||||
self.debug("stored pending newsegment")
|
||||
self.pending_newsegment = event
|
||||
return False
|
||||
|
||||
def _markValidElements(self, element):
|
||||
"""
|
||||
Mark this element and upstreams as valid
|
||||
|
|
@ -256,22 +392,24 @@ class SingleDecodeBin(gst.Bin):
|
|||
"""
|
||||
Remove unused elements connected to srcpad(s) of element
|
||||
"""
|
||||
self.log("element:%s" % element)
|
||||
for pad in element.src_pads():
|
||||
self.log("element:%r" % element)
|
||||
for pad in list(element.src_pads()):
|
||||
if pad.is_linked():
|
||||
peer = pad.get_peer().get_parent()
|
||||
self._removeUnusedElements(peer)
|
||||
if not peer in self._validelements:
|
||||
self.log("removing %s" % peer.get_name())
|
||||
pad.unlink(pad.get_peer())
|
||||
peer.set_state(gst.STATE_NULL)
|
||||
self.remove(peer)
|
||||
if isinstance(peer, gst.Element):
|
||||
self._removeUnusedElements(peer)
|
||||
if not peer in self._validelements:
|
||||
self.log("removing %s" % peer.get_name())
|
||||
pad.unlink(pad.get_peer())
|
||||
peer.set_state(gst.STATE_NULL)
|
||||
self.remove(peer)
|
||||
|
||||
def _cleanUp(self):
|
||||
self.log("")
|
||||
if self._srcpad:
|
||||
self.remove_pad(self._srcpad)
|
||||
self._srcpad = None
|
||||
self._target = None
|
||||
for element in self._validelements:
|
||||
element.set_state(gst.STATE_NULL)
|
||||
self.remove(element)
|
||||
|
|
@ -282,7 +420,7 @@ class SingleDecodeBin(gst.Bin):
|
|||
def do_change_state(self, transition):
|
||||
self.debug("transition:%r" % transition)
|
||||
res = gst.Bin.do_change_state(self, transition)
|
||||
if transition in [gst.STATE_CHANGE_PAUSED_TO_READY, gst.STATE_CHANGE_READY_TO_NULL]:
|
||||
if transition == gst.STATE_CHANGE_PAUSED_TO_READY:
|
||||
self._cleanUp()
|
||||
return res
|
||||
|
||||
|
|
|
|||
|
|
@ -1,6 +1,6 @@
|
|||
#!/usr/bin/python
|
||||
# -*- coding: utf-8 -*-
|
||||
# vi:si:et:sw=4:sts=4:ts=4
|
||||
# -*- coding: utf-8 -*-
|
||||
# vi:si:et:sw=4:sts=4:ts=4
|
||||
# GPL 2008
|
||||
import gobject
|
||||
gobject.threads_init()
|
||||
|
|
|
|||
Loading…
Reference in New Issue