Add the VSE addon Power Sequencer

1 files changed, 127 insertions, 0 deletions

diff --git a/power_sequencer/operators/speed_up_movie_strip.py b/power_sequencer/operators/speed_up_movie_strip.py
new file mode 100644
index 00000000..0c87b78b
--- /dev/null
+++ b/power_sequencer/operators/speed_up_movie_strip.py
@@ -0,0 +1,127 @@
+#
+# Copyright (C) 2016-2019 by Nathan Lovato, Daniel Oakey, Razvan Radulescu, and contributors
+#
+# This file is part of Power Sequencer.
+#
+# Power Sequencer is free software: you can redistribute it and/or modify it under the terms of the
+# GNU General Public License as published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# Power Sequencer is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+# without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along with Power Sequencer. If
+# not, see <https://www.gnu.org/licenses/>.
+#
+import bpy
+from math import ceil
+
+from .utils.global_settings import SequenceTypes
+from .utils.functions import slice_selection
+from .utils.functions import find_linked
+from .utils.doc import doc_name, doc_idname, doc_brief, doc_description
+
+
+class POWER_SEQUENCER_OT_speed_up_movie_strip(bpy.types.Operator):
+    """
+    *brief* Adds a speed effect to the  2x speed, set frame end, wrap both into META
+
+    Add 2x speed to strip and set its frame end accordingly. Wraps both the strip and the speed
+    modifier into a META strip.
+    """
+
+    doc = {
+        "name": doc_name(__qualname__),
+        "demo": "https://i.imgur.com/ZyEd0jD.gif",
+        "description": doc_description(__doc__),
+        "shortcuts": [
+            (
+                {"type": "NUMPAD_2", "value": "PRESS", "alt": True},
+                {"speed_factor": 2.0},
+                "Speed x2",
+            ),
+            (
+                {"type": "NUMPAD_3", "value": "PRESS", "alt": True},
+                {"speed_factor": 3.0},
+                "Speed x3",
+            ),
+            (
+                {"type": "NUMPAD_4", "value": "PRESS", "alt": True},
+                {"speed_factor": 4.0},
+                "Speed x4",
+            ),
+        ],
+        "keymap": "Sequencer",
+    }
+    bl_idname = doc_idname(__qualname__)
+    bl_label = doc["name"]
+    bl_description = doc_brief(doc["description"])
+    bl_options = {"REGISTER", "UNDO"}
+
+    speed_factor: bpy.props.IntProperty(
+        name="Speed factor", description="How many times the footage gets sped up", default=2, min=0
+    )
+    individual_sequences: bpy.props.BoolProperty(
+        name="Affect individual strips",
+        description="Speed up every VIDEO strip individually",
+        default=False,
+    )
+
+    @classmethod
+    def poll(cls, context):
+        return context.selected_sequences
+
+    def execute(self, context):
+        sequences = [s for s in context.selected_sequences if s.type in SequenceTypes.VIDEO]
+
+        if not sequences:
+            self.report(
+                {"ERROR_INVALID_INPUT"},
+                "No Movie meta_strip or Metastrips selected. Operation cancelled",
+            )
+            return {"FINISHED"}
+
+        selection_blocks = []
+        if self.individual_sequences:
+            selection_blocks = [[s] for s in sequences]
+        else:
+            selection_blocks = slice_selection(context, sequences)
+
+        for sequences in selection_blocks:
+            self.speed_effect_add(context, sequences)
+
+        self.report(
+            {"INFO"}, "Successfully processed " + str(len(selection_blocks)) + " selection blocks"
+        )
+        return {"FINISHED"}
+
+    def speed_effect_add(self, context, sequences):
+        if not sequences:
+            return
+
+        sequence_editor = context.scene.sequence_editor
+        bpy.ops.sequencer.select_all(action="DESELECT")
+        for s in sequences:
+            s.select = True
+        bpy.ops.sequencer.meta_make()
+        meta_strip = sequence_editor.active_strip
+        if len(meta_strip.sequences) == 1:
+            meta_strip.sequences[0].frame_offset_start = 0
+            meta_strip.sequences[0].frame_offset_end = 0
+
+        bpy.ops.sequencer.effect_strip_add(type="SPEED")
+        speed_effect = sequence_editor.active_strip
+        speed_effect.use_default_fade = False
+        speed_effect.speed_factor = self.speed_factor
+
+        duration = ceil(meta_strip.frame_final_duration / speed_effect.speed_factor)
+        meta_strip.frame_final_end = meta_strip.frame_final_start + duration
+
+        sequence_editor.active_strip = meta_strip
+        speed_effect.select = True
+        meta_strip.select = True
+        bpy.ops.sequencer.meta_make()
+        sequence_editor.active_strip.name = (
+            meta_strip.sequences[0].name + " " + str(self.speed_factor) + "x"
+        )