Add ability to crop videos

Full cuts only. Uploads just the cropped area. This can be used to make youtube "shorts".

DATABASE.md

@@ -181,6 +181,7 @@ columns                    | type                                 | role
 `public`                   | `BOOLEAN NOT NULL DEFAULT TRUE`      | edit input  | Whether the uploaded video should be public or not, if the upload location supports that distinction. For example, on youtube, non-public videos are "unlisted". It also controls whether the video will be added to playlists, only public videos are added to playlists.
 `video_ranges`             | `{start TIMESTAMP, end TIMESTAMP}[]` | edit input  | A non-zero number of start and end times, describing the ranges of video to cut. They will be cut back-to-back in the given order, with the transitions between as per `video_transitions`. If already set, used as the default range settings when editing.
 `video_transitions`        | `{type TEXT, duration INTERVAL}[]`   | edit input  | Defines how to transition between each range defined in `video_ranges`, and must be exactly the length of `video_ranges` minus 1. Each index in `video_transitions` defines the transition between the range with the same index in `video_ranges` and the next one. Transitions either specify a transition type as understood by `ffmpeg`'s `xfade` filter and a duration (amount of overlap), or can be NULL to indicate a hard cut.
+`video_crop`               | `{x, y, w, h INTEGER}`               | edit input  | If given, defines how the video should be cropped when editing.
 `video_title`              | `TEXT`                               | edit input  | The title of the video. If already set, used as the default title when editing instead of `description`.
 `video_description`        | `TEXT`                               | edit input  | The description field of the video. If already set, used as the default description when editing instead of `description`.
 `video_tags`               | `TEXT[]`                             | edit input  | Custom tags to annotate the video with. If already set, used as the default when editing instead of `tags`.

cutter/cutter/main.py

@@ -63,6 +63,7 @@ CUT_JOB_PARAMS = [
 	"public",
 	"video_ranges",
 	"video_transitions",
+	"video_crop",
 	"video_title",
 	"video_description",
 	"video_tags",
@@ -400,12 +401,20 @@ class Cutter(object):
 					self.logger.debug("No encoding settings, using fast cut")
 					if any(transition is not None for transition in job.video_transitions):
 						raise ValueError("Fast cuts do not support complex transitions")
+					if job.video_crop is not None:
+						raise ValueError("Fast cuts do not support cropping")
 					cut = fast_cut_segments(job.segment_ranges, job.video_ranges)
 				else:
 					self.logger.debug("Using encoding settings for {} cut: {}".format(
 						"streamable" if upload_backend.encoding_streamable else "non-streamable",
 						upload_backend.encoding_settings,
 					))
+					encode_args = upload_backend.encoding_settings
+					if job.video_crop:
+						x, y, w, h = job.video_crop
+						encode_args = [
+							"-vf", "crop={}:{}:{}:{}".format(w, h, x, y)
+						] + encode_args
 					if len(job.video_ranges) > 1:
 						raise ValueError("Full cuts do not support multiple ranges")
 					range = job.video_ranges[0]

postgres/setup.sh

@@ -64,6 +64,13 @@ CREATE TYPE thumbnail_mode as ENUM (
 	'CUSTOM'
 );
 
+CREATE TYPE box as (
+	x INTEGER,
+	y INTEGER,
+	w INTEGER,
+	h INTEGER
+)
+
 CREATE TABLE events (
 	id UUID PRIMARY KEY,
 
@@ -88,6 +95,7 @@ CREATE TABLE events (
 		(video_ranges IS NULL AND video_transitions IS NULL)
 		OR CARDINALITY(video_ranges) = CARDINALITY(video_transitions) + 1
 	),
+	video_crop box,
 	video_title TEXT CHECK (state IN ('UNEDITED', 'DONE') OR video_title IS NOT NULL),
 	video_description TEXT CHECK (state IN ('UNEDITED', 'DONE') OR video_description IS NOT NULL),
 	video_tags TEXT[] CHECK (state IN ('UNEDITED', 'DONE') OR video_tags IS NOT NULL),

thrimshim/thrimshim/main.py

@@ -242,6 +242,7 @@ def update_row(ident, editor=None):
 	]
 	edit_columns = non_null_columns + [
 		'allow_holes', 'uploader_whitelist', 'thumbnail_time', 'thumbnail_template', 'thumbnail_image'
+		'video_crop'
 	]
 	sheet_columns = [
 		'sheet_name', 'event_start', 'event_end',
@@ -337,6 +338,8 @@ def update_row(ident, editor=None):
 		None if transition is None else tuple(transition)
 		for transition in new_row['video_transitions']
 	]
+	if new_row.get('video_crop') is not None:
+		new_row['video_crop'] = tuple(new_row['video_crop'])
 
 	# Convert binary fields from base64 and do basic validation of contents
 	if new_row.get('thumbnail_image') is not None: