forked from bartvdbraak/blender
83 lines
2.8 KiB
Python
83 lines
2.8 KiB
Python
# ##### BEGIN GPL LICENSE BLOCK #####
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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 General Public License
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# as published by the Free Software Foundation; either version 2
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# 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
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software Foundation,
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# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#
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# ##### END GPL LICENSE BLOCK #####
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# <pep8 compliant>
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import bpy
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class SequencerCrossfadeSounds(bpy.types.Operator):
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'''Do crossfading volume animation of two selected sound strips.'''
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bl_idname = "sequencer.crossfade_sounds"
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bl_label = "Crossfade sounds"
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bl_options = {'REGISTER', 'UNDO'}
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def poll(self, context):
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if context.scene and context.scene.sequence_editor and context.scene.sequence_editor.active_strip:
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return context.scene.sequence_editor.active_strip.type == 'SOUND'
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else:
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return False
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def execute(self, context):
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seq1 = None
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seq2 = None
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for s in context.scene.sequence_editor.sequences:
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if s.selected and s.type == 'SOUND':
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if seq1 == None:
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seq1 = s
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elif seq2 == None:
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seq2 = s
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else:
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seq2 = None
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break
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if seq2 == None:
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self.report({'ERROR'}, "Select 2 sound strips.")
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return {'CANCELLED'}
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if seq1.start_frame_final > seq2.start_frame_final:
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s = seq1
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seq1 = seq2
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seq2 = s
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if seq1.end_frame_final > seq2.start_frame_final:
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tempcfra = context.scene.current_frame
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context.scene.current_frame = seq2.start_frame_final
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seq1.keyframe_insert('volume')
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context.scene.current_frame = seq1.end_frame_final
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seq1.volume = 0
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seq1.keyframe_insert('volume')
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seq2.keyframe_insert('volume')
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context.scene.current_frame = seq2.start_frame_final
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seq2.volume = 0
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seq2.keyframe_insert('volume')
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context.scene.current_frame = tempcfra
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return {'FINISHED'}
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else:
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self.report({'ERROR'}, "The selected strips don't overlap.")
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return {'CANCELLED'}
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def register():
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bpy.types.register(SequencerCrossfadeSounds)
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def unregister():
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bpy.types.unregister(SequencerCrossfadeSounds)
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if __name__ == "__main__":
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register()
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