The Blender Python API can be very useful not only for working with meshes or nodes but also when editing video files in the Video Sequence Editor.
.blend file on Patreon
We can add a new video strip to the VSE sequencer by executing the following command:
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strip = bpy.context.scene.sequence_editor.sequences.new_movie( name='New Movie Strip', filepath='d:/movie.mp4', channel=1, frame_start=1 ) # <bpy_struct, MovieSequence("New Movie Strip") at 0x0000027F5FE99608> |
with:
name – here we can set any convenient name for further reference to the strip by name,
filepath – full path to the video file,
channel – track number on which the added strip will be placed,
frame_start – frame number to which the beginning of the strip will be set.
We can refer to the added strip in the future by the given name:
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strip = bpy.context.scene.sequence_editor.sequences['New Movie Strip'] print(strip) # bpy.data.scenes['Scene'].sequence_editor.sequences_all["New Movie Strip"] |
For example, to set the blending mode:
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strip.blend_type = 'ALPHA_OVER' |
The “Alpha Over” mode indicates that the strip should be blended with others by the background transparency.