mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-13 20:06:35 +00:00
142456d8ba
Added more errors to GES_ERROR for when edits fail (other than programming or usage errors). Also promoted some GST messages if they related to a usage error. Also added explanation of timeline overlap rules in user docs. Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-editing-services/-/merge_requests/177>
735 lines
27 KiB
Python
735 lines
27 KiB
Python
# -*- coding: utf-8 -*-
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#
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# Copyright (c) 2016 Alexandru Băluț <alexandru.balut@gmail.com>
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# Copyright (c) 2016, Thibault Saunier
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with this program; if not, write to the
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# Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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# Boston, MA 02110-1301, USA.
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import gi
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gi.require_version("Gst", "1.0")
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gi.require_version("GES", "1.0")
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from gi.repository import Gst # noqa
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from gi.repository import GES # noqa
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from gi.repository import GLib # noqa
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from gi.repository import GObject # noqa
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import contextlib # noqa
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import os #noqa
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import unittest # noqa
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import tempfile # noqa
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Gst.init(None)
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GES.init()
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def create_main_loop():
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"""Creates a MainLoop with a timeout."""
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mainloop = GLib.MainLoop()
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timed_out = False
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def timeout_cb(unused):
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nonlocal timed_out
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timed_out = True
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mainloop.quit()
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def run(timeout_seconds=5, until_empty=False):
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source = GLib.timeout_source_new_seconds(timeout_seconds)
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source.set_callback(timeout_cb)
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source.attach()
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if until_empty:
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GLib.idle_add(mainloop.quit)
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GLib.MainLoop.run(mainloop)
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source.destroy()
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if timed_out:
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raise Exception("Timed out after %s seconds" % timeout_seconds)
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mainloop.run = run
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return mainloop
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def create_project(with_group=False, saved=False):
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"""Creates a project with two clips in a group."""
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timeline = GES.Timeline.new_audio_video()
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layer = timeline.append_layer()
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if with_group:
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clip1 = GES.TitleClip()
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clip1.set_start(0)
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clip1.set_duration(10*Gst.SECOND)
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layer.add_clip(clip1)
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clip2 = GES.TitleClip()
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clip2.set_start(100 * Gst.SECOND)
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clip2.set_duration(10*Gst.SECOND)
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layer.add_clip(clip2)
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group = GES.Container.group([clip1, clip2])
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if saved:
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if isinstance(saved, str):
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suffix = "-%s.xges" % saved
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else:
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suffix = ".xges"
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uri = "file://%s" % tempfile.NamedTemporaryFile(suffix=suffix).name
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timeline.get_asset().save(timeline, uri, None, overwrite=True)
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return timeline
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@contextlib.contextmanager
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def created_project_file(xges):
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_, xges_path = tempfile.mkstemp(suffix=".xges")
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with open(xges_path, "w") as f:
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f.write(xges)
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yield Gst.filename_to_uri(os.path.abspath(xges_path))
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os.remove(xges_path)
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def get_asset_uri(name):
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python_tests_dir = os.path.dirname(os.path.abspath(__file__))
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assets_dir = os.path.join(python_tests_dir, "..", "assets")
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return Gst.filename_to_uri(os.path.join(assets_dir, name))
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class GESTest(unittest.TestCase):
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def _log(self, func, format, *args):
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string = format
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if args:
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string = string % args[0]
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func(string)
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def log(self, format, *args):
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self._log(Gst.log, format, *args)
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def debug(self, format, *args):
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self._log(Gst.debug, format, *args)
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def info(self, format, *args):
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self._log(Gst.info, format, *args)
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def fixme(self, format, *args):
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self._log(Gst.fixme, format, *args)
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def warning(self, format, *args):
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self._log(Gst.warning, format, *args)
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def error(self, format, *args):
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self._log(Gst.error, format, *args)
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def check_clip_values(self, clip, start, in_point, duration):
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for elem in [clip] + clip.get_children(False):
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self.check_element_values(elem, start, in_point, duration)
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def check_element_values(self, element, start, in_point, duration):
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self.assertEqual(element.props.start, start, element)
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self.assertEqual(element.props.in_point, in_point, element)
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self.assertEqual(element.props.duration, duration, element)
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def assert_effects(self, clip, *effects):
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# Make sure there are no other effects.
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self.assertEqual(set(clip.get_top_effects()), set(effects))
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# Make sure their order is correct.
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indexes = [clip.get_top_effect_index(effect)
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for effect in effects]
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self.assertEqual(indexes, list(range(len(effects))))
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def assertGESError(self, error, code, message=""):
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if error is None:
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raise AssertionError(
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"{}{}Received no error".format(message, message and ": "))
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if error.domain != "GES_ERROR":
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raise AssertionError(
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"{}{}Received error ({}) in domain {} rather than "
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"GES_ERROR".format(
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message, message and ": ", error.message, error.domain))
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err_code = GES.Error(error.code)
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if err_code != code:
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raise AssertionError(
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"{}{}Received {} error ({}) rather than {}".format(
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message, message and ": ", err_code.value_name,
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error.message, code.value_name))
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class GESSimpleTimelineTest(GESTest):
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def __init__(self, *args):
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self.track_types = [GES.TrackType.AUDIO, GES.TrackType.VIDEO]
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super(GESSimpleTimelineTest, self).__init__(*args)
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def timeline_as_str(self):
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res = "====== %s =======\n" % self.timeline
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for layer in self.timeline.get_layers():
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res += "Layer %04d: " % layer.get_priority()
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for clip in layer.get_clips():
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res += "{ %s }" % clip
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res += '\n------------------------\n'
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for group in self.timeline.get_groups():
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res += "GROUP %s :" % group
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for clip in group.get_children(False):
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res += " { %s }" % clip.props.name
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res += '\n'
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res += "================================\n"
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return res
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def print_timeline(self):
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print(self.timeline_as_str())
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def setUp(self):
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self.timeline = GES.Timeline.new()
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for track_type in self.track_types:
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self.assertIn(
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track_type, [GES.TrackType.AUDIO, GES.TrackType.VIDEO])
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if track_type == GES.TrackType.AUDIO:
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self.assertTrue(self.timeline.add_track(GES.AudioTrack.new()))
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else:
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self.assertTrue(self.timeline.add_track(GES.VideoTrack.new()))
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self.assertEqual(len(self.timeline.get_tracks()),
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len(self.track_types))
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self.layer = self.timeline.append_layer()
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def add_clip(self, start, in_point, duration, asset_type=GES.TestClip):
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clip = GES.Asset.request(asset_type, None).extract()
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clip.props.start = start
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clip.props.in_point = in_point
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clip.props.duration = duration
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self.assertTrue(self.layer.add_clip(clip))
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return clip
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def append_clip(self, layer=0, asset_type=GES.TestClip):
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while len(self.timeline.get_layers()) < layer + 1:
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self.timeline.append_layer()
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layer = self.timeline.get_layers()[layer]
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clip = GES.Asset.request(asset_type, None).extract()
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clip.props.start = layer.get_duration()
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clip.props.duration = 10
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self.assertTrue(layer.add_clip(clip))
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return clip
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def assertElementAreEqual(self, ref, element):
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self.assertTrue(isinstance(element, type(ref)), "%s and %s do not have the same type!" % (ref, element))
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props = [p for p in ref.list_properties() if p.name not in ['name']
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and not GObject.type_is_a(p.value_type, GObject.Object)]
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for p in props:
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pname = p.name
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v0 = GObject.Value()
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v0.init(p.value_type)
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v0.set_value(ref.get_property(pname))
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v1 = GObject.Value()
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v1.init(p.value_type)
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v1.set_value(element.get_property(pname))
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self.assertTrue(Gst.value_compare(v0, v1) == Gst.VALUE_EQUAL,
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"%s are not equal: %s != %s" % (pname, v0, v1))
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if isinstance(ref, GES.TrackElement):
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self.assertElementAreEqual(ref.get_nleobject(), element.get_nleobject())
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return
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if not isinstance(ref, GES.Clip):
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return
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ttypes = [track.type for track in self.timeline.get_tracks()]
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for ttype in ttypes:
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if ttypes.count(ttype) > 1:
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self.warning("Can't deeply check %s and %s "
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"(only one track per type supported %s %s found)" % (ref,
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element, ttypes.count(ttype), ttype))
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return
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children = element.get_children(False)
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for ref_child in ref.get_children(False):
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ref_track = ref_child.get_track()
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if not ref_track:
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self.warning("Can't check %s as not in a track" % (ref_child))
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continue
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child = None
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for tmpchild in children:
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if not isinstance(tmpchild, type(ref_child)):
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continue
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if ref_track.type != tmpchild.get_track().type:
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continue
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if not isinstance(ref_child, GES.Effect):
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child = tmpchild
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break
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elif ref_child.props.bin_description == child.props.bin_description:
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child = tmpchild
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break
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self.assertIsNotNone(child, "Could not find equivalent child %s in %s(%s)" % (ref_child,
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element, children))
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self.assertElementAreEqual(ref_child, child)
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def check_reload_timeline(self):
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tmpf = tempfile.NamedTemporaryFile(suffix='.xges')
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uri = Gst.filename_to_uri(tmpf.name)
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self.assertTrue(self.timeline.save_to_uri(uri, None, True))
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project = GES.Project.new(uri)
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mainloop = create_main_loop()
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def loaded_cb(unused_project, unused_timeline):
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mainloop.quit()
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project.connect("loaded", loaded_cb)
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reloaded_timeline = project.extract()
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mainloop.run()
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self.assertIsNotNone(reloaded_timeline)
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layers = self.timeline.get_layers()
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reloaded_layers = reloaded_timeline.get_layers()
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self.assertEqual(len(layers), len(reloaded_layers))
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for layer, reloaded_layer in zip(layers, reloaded_layers):
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clips = layer.get_clips()
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reloaded_clips = reloaded_layer.get_clips()
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self.assertEqual(len(clips), len(reloaded_clips))
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for clip, reloaded_clip in zip(clips, reloaded_clips):
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self.assertElementAreEqual(clip, reloaded_clip)
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return reloaded_timeline
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def assertTimelineTopology(self, topology, groups=[]):
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res = []
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for layer in self.timeline.get_layers():
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layer_timings = []
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for clip in layer.get_clips():
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layer_timings.append(
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(type(clip), clip.props.start, clip.props.duration))
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for child in clip.get_children(True):
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self.assertEqual(child.props.start, clip.props.start)
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self.assertEqual(child.props.duration, clip.props.duration)
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res.append(layer_timings)
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if topology != res:
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Gst.error(self.timeline_as_str())
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self.assertEqual(topology, res)
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timeline_groups = self.timeline.get_groups()
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if groups and timeline_groups:
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for i, group in enumerate(groups):
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self.assertEqual(set(group), set(timeline_groups[i].get_children(False)))
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self.assertEqual(len(timeline_groups), i + 1)
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return res
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class GESTimelineConfigTest(GESTest):
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"""
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Tests where all the configuration changes, snapping positions and
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auto-transitions are accounted for.
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"""
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def setUp(self):
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timeline = GES.Timeline.new()
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self.timeline = timeline
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timeline.set_auto_transition(True)
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self.snap_occured = False
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self.snap = None
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def snap_started(tl, el1, el2, pos):
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if self.snap_occured:
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raise AssertionError(
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"Previous snap {} not accounted for".format(self.snap))
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self.snap_occured = True
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if self.snap is not None:
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raise AssertionError(
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"Previous snap {} not ended".format(self.snap))
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self.snap = (el1.get_parent(), el2.get_parent(), pos)
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def snap_ended(tl, el1, el2, pos):
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self.assertEqual(
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self.snap, (el1.get_parent(), el2.get_parent(), pos))
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self.snap = None
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timeline.connect("snapping-started", snap_started)
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timeline.connect("snapping-ended", snap_ended)
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self.lost_clips = []
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def unrecord_lost_clip(layer, clip):
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if clip in self.lost_clips:
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self.lost_clips.remove(clip)
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def record_lost_clip(layer, clip):
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self.lost_clips.append(clip)
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def layer_added(tl, layer):
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layer.connect("clip-added", unrecord_lost_clip)
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layer.connect("clip-removed", record_lost_clip)
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timeline.connect("layer-added", layer_added)
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self.clips = []
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self.auto_transitions = {}
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self.config = {}
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@staticmethod
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def new_config(start, duration, inpoint, maxduration, layer):
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return {"start": start, "duration": duration, "in-point": inpoint,
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"max-duration": maxduration, "layer": layer}
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def add_clip(self, name, layer, tracks, start, duration, inpoint=0,
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maxduration=Gst.CLOCK_TIME_NONE, clip_type=GES.TestClip,
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asset_id=None, effects=None):
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"""
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Create a clip with the given @name and properties and add it to the
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layer of priority @layer to the tracks in @tracks. Also registers
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its expected configuration.
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"""
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if effects is None:
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effects = []
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lay = self.timeline.get_layer(layer)
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while lay is None:
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self.timeline.append_layer()
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lay = self.timeline.get_layer(layer)
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asset = GES.Asset.request(clip_type, asset_id)
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clip = asset.extract()
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self.assertTrue(clip.set_name(name))
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# FIXME: would be better to use select-tracks-for-object
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# hack around the fact that we cannot use select-tracks-for-object
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# in python by setting start to large number to ensure no conflict
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# when adding a clip
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self.assertTrue(clip.set_start(10000))
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self.assertTrue(clip.set_duration(duration))
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self.assertTrue(clip.set_inpoint(inpoint))
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for effect in effects:
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self.assertTrue(clip.add(effect))
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if lay.add_clip(clip) != True:
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raise AssertionError(
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"Failed to add clip {} to layer {}".format(name, layer))
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# then remove the children not in the selected tracks, which may
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# now allow some clips to fully/triple overlap because they do
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# not share a track
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for child in clip.get_children(False):
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if child.get_track() not in tracks:
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clip.remove(child)
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# then move to the desired start
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prev_snap = self.timeline.get_snapping_distance()
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self.timeline.set_snapping_distance(0)
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self.assertTrue(clip.set_start(start))
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self.timeline.set_snapping_distance(prev_snap)
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self.assertTrue(clip.set_max_duration(maxduration))
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self.config[clip] = self.new_config(
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start, duration, inpoint, maxduration, layer)
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self.clips.append(clip)
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return clip
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def add_group(self, name, to_group):
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"""
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Create a group with the given @name and the elements in @to_group.
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Also registers its expected configuration.
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"""
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group = GES.Group.new()
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self.assertTrue(group.set_name(name))
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start = None
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end = None
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layer = None
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for element in to_group:
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if start is None:
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start = element.start
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end = element.start + element.duration
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layer = element.get_layer_priority()
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else:
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start = min(start, element.start)
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end = max(end, element.start + element.duration)
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layer = min(layer, element.get_layer_priority())
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self.assertTrue(group.add(element))
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self.config[group] = self.new_config(
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start, end - start, 0, Gst.CLOCK_TIME_NONE, layer)
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return group
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def register_auto_transition(self, clip1, clip2, track):
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"""
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Register that we expect an auto-transition to exist between
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@clip1 and @clip2 in @track.
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"""
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transition = self._find_transition(clip1, clip2, track)
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if transition is None:
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raise AssertionError(
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"{} and {} have no auto-transition in track {}".format(
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clip1, clip2, track))
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if transition in self.auto_transitions.values():
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raise AssertionError(
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"Auto-transition between {} and {} in track {} already "
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"registered".format(clip1, clip2, track))
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key = (clip1, clip2, track)
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if key in self.auto_transitions:
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|
raise AssertionError(
|
|
"Auto-transition already registered for {}".format(key))
|
|
|
|
self.auto_transitions[key] = transition
|
|
|
|
def add_video_track(self):
|
|
track = GES.VideoTrack.new()
|
|
self.assertTrue(self.timeline.add_track(track))
|
|
return track
|
|
|
|
def add_audio_track(self):
|
|
track = GES.AudioTrack.new()
|
|
self.assertTrue(self.timeline.add_track(track))
|
|
return track
|
|
|
|
def assertElementConfig(self, element, config):
|
|
for prop in config:
|
|
if prop == "layer":
|
|
val = element.get_layer_priority()
|
|
else:
|
|
val = element.get_property(prop)
|
|
|
|
if val != config[prop]:
|
|
raise AssertionError("{} property {}: {} != {}".format(
|
|
element, prop, val, config[prop]))
|
|
|
|
@staticmethod
|
|
def _source_in_track(clip, track):
|
|
if clip.find_track_element(track, GES.Source):
|
|
return True
|
|
return False
|
|
|
|
def _find_transition(self, clip1, clip2, track):
|
|
"""find transition from earlier clip1 to later clip2"""
|
|
if not self._source_in_track(clip1, track) or \
|
|
not self._source_in_track(clip2, track):
|
|
return None
|
|
|
|
layer_prio = clip1.get_layer_priority()
|
|
if layer_prio != clip2.get_layer_priority():
|
|
return None
|
|
|
|
if clip1.start >= clip2.start:
|
|
return None
|
|
|
|
start = clip2.start
|
|
end = clip1.start + clip1.duration
|
|
if start >= end:
|
|
return None
|
|
duration = end - start
|
|
|
|
layer = self.timeline.get_layer(layer_prio)
|
|
self.assertIsNotNone(layer)
|
|
|
|
for clip in layer.get_clips():
|
|
children = clip.get_children(False)
|
|
if len(children) == 1:
|
|
child = children[0]
|
|
else:
|
|
continue
|
|
if isinstance(clip, GES.TransitionClip) and clip.start == start \
|
|
and clip.duration == duration and child.get_track() == track:
|
|
return clip
|
|
|
|
raise AssertionError(
|
|
"No auto-transition between {} and {} in track {}".format(
|
|
clip1, clip2, track))
|
|
|
|
def _transition_between(self, new, existing, clip1, clip2, track):
|
|
if clip1.start < clip2.start:
|
|
entry = (clip1, clip2, track)
|
|
else:
|
|
entry = (clip2, clip1, track)
|
|
trans = self._find_transition(*entry)
|
|
|
|
if trans is None:
|
|
return
|
|
|
|
if entry in new:
|
|
new.remove(entry)
|
|
self.auto_transitions[entry] = trans
|
|
elif entry in existing:
|
|
existing.remove(entry)
|
|
expect = self.auto_transitions[entry]
|
|
if trans != expect:
|
|
raise AssertionError(
|
|
"Auto-transition between {} and {} in track {} changed "
|
|
"from {} to {}".format(
|
|
clip1, clip2, track, expect, trans))
|
|
else:
|
|
raise AssertionError(
|
|
"Unexpected transition found between {} and {} in track {}"
|
|
"".format(clip1, clip2, track))
|
|
|
|
def assertTimelineConfig(
|
|
self, new_props=None, snap_position=None, snap_froms=None,
|
|
snap_tos=None, new_transitions=None, lost_transitions=None):
|
|
"""
|
|
Check that the timeline configuration has only changed by the
|
|
differences present in @new_props.
|
|
Check that a snap occurred at @snap_position between one of the
|
|
clips in @snap_froms and one of the clips in @snap_tos.
|
|
Check that all new transitions in the timeline are present in
|
|
@new_transitions.
|
|
Checl that all the transitions that were lost are in
|
|
@lost_transitions.
|
|
"""
|
|
if new_props is None:
|
|
new_props = {}
|
|
if snap_froms is None:
|
|
snap_froms = []
|
|
if snap_tos is None:
|
|
snap_tos = []
|
|
if new_transitions is None:
|
|
new_transitions = []
|
|
if lost_transitions is None:
|
|
lost_transitions = []
|
|
|
|
for element, config in new_props.items():
|
|
if element not in self.config:
|
|
self.config[element] = {}
|
|
|
|
for prop in config:
|
|
self.config[element][prop] = new_props[element][prop]
|
|
|
|
for element, config in self.config.items():
|
|
self.assertElementConfig(element, config)
|
|
|
|
# check that snapping occurred
|
|
snaps = []
|
|
for snap_from in snap_froms:
|
|
for snap_to in snap_tos:
|
|
snaps.append((snap_from, snap_to, snap_position))
|
|
|
|
if self.snap is None:
|
|
if snaps:
|
|
raise AssertionError(
|
|
"No snap occurred, but expected a snap in {}".format(snaps))
|
|
elif not snaps:
|
|
if self.snap_occured:
|
|
raise AssertionError(
|
|
"Snap {} occurred, but expected no snap".format(self.snap))
|
|
elif self.snap not in snaps:
|
|
raise AssertionError(
|
|
"Snap {} occurred, but expected a snap in {}".format(
|
|
self.snap, snaps))
|
|
self.snap_occured = False
|
|
|
|
# check that lost transitions are not part of the layer
|
|
for clip1, clip2, track in lost_transitions:
|
|
key = (clip1, clip2, track)
|
|
if key not in self.auto_transitions:
|
|
raise AssertionError(
|
|
"No such auto-transition between {} and {} in track {} "
|
|
"is registered".format(clip1, clip2, track))
|
|
# make sure original transition was removed from the layer
|
|
trans = self.auto_transitions[key]
|
|
if trans not in self.lost_clips:
|
|
raise AssertionError(
|
|
"The auto-transition {} between {} and {} track {} was "
|
|
"not removed from the layers, but expect it to be lost"
|
|
"".format(trans, clip1, clip2, track))
|
|
self.lost_clips.remove(trans)
|
|
# make sure a new one wasn't created
|
|
trans = self._find_transition(clip1, clip2, track)
|
|
if trans is not None:
|
|
raise AssertionError(
|
|
"Found auto-transition between {} and {} in track {} "
|
|
"is present, but expected it to be lost".format(
|
|
clip1, clip2, track))
|
|
# since it was lost, remove it
|
|
del self.auto_transitions[key]
|
|
|
|
# check that all lost clips are accounted for
|
|
if self.lost_clips:
|
|
raise AssertionError(
|
|
"Clips were lost that are not accounted for: {}".format(
|
|
self.lost_clips))
|
|
|
|
# check that all other transitions are either existing ones or
|
|
# new ones
|
|
new = set(new_transitions)
|
|
existing = set(self.auto_transitions.keys())
|
|
for i, clip1 in enumerate(self.clips):
|
|
for clip2 in self.clips[i+1:]:
|
|
for track in self.timeline.get_tracks():
|
|
self._transition_between(
|
|
new, existing, clip1, clip2, track)
|
|
|
|
# make sure we are not missing any expected transitions
|
|
if new:
|
|
raise AssertionError(
|
|
"Did not find new transitions for {}".format(new))
|
|
if existing:
|
|
raise AssertionError(
|
|
"Did not find existing transitions for {}".format(existing))
|
|
|
|
# make sure there aren't any clips we are unaware of
|
|
transitions = self.auto_transitions.values()
|
|
for layer in self.timeline.get_layers():
|
|
for clip in layer.get_clips():
|
|
if clip not in self.clips and clip not in transitions:
|
|
raise AssertionError("Unknown clip {}".format(clip))
|
|
|
|
def assertEdit(self, element, layer, mode, edge, position, snap,
|
|
snap_froms, snap_tos, new_props, new_transitions,
|
|
lost_transitions):
|
|
if not element.edit_full(layer, mode, edge, position):
|
|
raise AssertionError(
|
|
"Edit of {} to layer {}, mode {}, edge {}, at position {} "
|
|
"failed when a success was expected".format(
|
|
element, layer, mode, edge, position))
|
|
self.assertTimelineConfig(
|
|
new_props=new_props, snap_position=snap, snap_froms=snap_froms,
|
|
snap_tos=snap_tos, new_transitions=new_transitions,
|
|
lost_transitions=lost_transitions)
|
|
|
|
def assertFailEdit(self, element, layer, mode, edge, position, err_code):
|
|
res = None
|
|
error = None
|
|
try:
|
|
res = element.edit_full(layer, mode, edge, position)
|
|
except GLib.Error as exception:
|
|
error = exception
|
|
|
|
if err_code is None:
|
|
if res is not False:
|
|
raise AssertionError(
|
|
"Edit of {} to layer {}, mode {}, edge {}, at "
|
|
"position {} succeeded when a failure was expected"
|
|
"".format(
|
|
element, layer, mode, edge, position))
|
|
if error is not None:
|
|
raise AssertionError(
|
|
"Edit of {} to layer {}, mode {}, edge {}, at "
|
|
"position {} did produced an error when none was "
|
|
"expected".format(
|
|
element, layer, mode, edge, position))
|
|
else:
|
|
self.assertGESError(
|
|
error, err_code,
|
|
"Edit of {} to layer {}, mode {}, edge {}, at "
|
|
"position {}".format(element, layer, mode, edge, position))
|
|
# should be no change or snapping if edit fails
|
|
self.assertTimelineConfig()
|