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#!/usr/bin/env python3
__package__ = "vid_transition"
import math
import pathlib
import enum
import logging
import datetime
import shutil
import subprocess
import argparse
import tempfile
from PIL import Image, ImageOps, ImageEnhance, ImageFilter
# default variables used in arg-parser
INPUT_VIDEOS = []
OUTPUT = ""
NUM_FRAMES = 10
ANIMATION = "rotation"
MAX_ROTATION = 45
MAX_DISTORTION = 0.7
MAX_BLUR = 0.2
MAX_BRIGHTNESS = 1.0
MAX_ZOOM = 2.0
DEBUG = False
ART = True
REMOVE_ORIGINAL = False
MERGE_PHASES = False
# variable that cannot be changed by arg-parser
_OUTPUT_VIDEO_TYPE = ".mp4"
_OUTPUT_VIDEO_CODEC = "h264"
_LIMITS = {"rotation": (5, 90), "brightness": (0.0, 2.0), "blur": (0.005, 1.0),
"distortion": (0.3, 1.0), "zoom": (1.2, 2.0)}
_ANIMATION_HELP = f"""
This program supports multiple types of animation. The arguments 'max_blur', 'max_distortion' and 'max_brightness' \
affect all these types. Whereas, 'max_rotation' and 'max_zoom' only affect [rotation] and [zoom] animations \
respectively. Here is the list of supported animations and the number of frames needed for each (assuming that the \
argument 'num_frames' is kept at {NUM_FRAMES}):
* [rotation]: clockwise rotation, has 2 phases and needs {NUM_FRAMES*2} frames.
* [rotation_inv]: anti-clockwise rotation, has 2 phases and needs {NUM_FRAMES*2} frames.
* [zoom_in]: zooms inwards, has 2 phases and needs {NUM_FRAMES*2} frames.
* [zoom_out]: zooms outwards, has 2 phases and needs {NUM_FRAMES*2} frames.
* [translation]: translation from left to right, has 2 phases and needs {NUM_FRAMES*2} frames.
* [translation_inv]: translation from right to left, has 2 phases and needs {NUM_FRAMES*2} frames.
* [long_translation]: translation from left to right, has 3 phases and needs {NUM_FRAMES*3} frames ({NUM_FRAMES} from \
the first video, and {NUM_FRAMES*2} from the second one).
* [long_translation_inv]: translation from right to left, has 3 phases and needs {NUM_FRAMES*3} frames.
"""
def log_debug(msg):
logging.getLogger(__package__).debug(msg)
def log_info(msg):
logging.getLogger(__package__).info(msg)
def log_warning(msg):
logging.getLogger(__package__).info("WARNING: " + msg)
def log_error(msg):
logging.getLogger(__package__).error("ERROR: " + msg + " (use --debug from more info)")
def intro_print(in_art):
""" Taken from https://patorjk.com/software/taag using 4MAX font"""
intro = '''
Yb dP 88 8888b. 888888 88""Yb db 88b 88 .dP"Y8 88 888888
Yb dP 88 8I Yb 88 88__dP dPYb 88Yb88 `Ybo." 88 88
YbdP 88 8I dY 88 88"Yb dP__Yb 88 Y88 o.`Y8b 88 88
YP 88 8888Y" 88 88 Yb dP""""Yb 88 Y8 8bodP' 88 88
'''
if in_art:
log_info(intro)
log_debug("=" * 80)
log_info((" starting video transition creation ".center(80, "=")))
log_debug("=" * 80)
log_info("")
def end_print(in_art):
end = """
,d8PPPP 888 ,d8 88PPP.
______ d88ooo 888_dPY8 88 8 ______
XXXXXX ,88' 8888' 88 88 8 XXXXXX
88bdPPP Y8P Y8 88oop'
"""
log_info((" video transition finished ".center(80, "=")))
if in_art:
log_info(end)
def progress(count, total, status=''):
bar_len = 40
end_char = ''
filled_len = int(round(bar_len * count / float(total)))
percents = round(100.0 * (count + 1) / float(total), 1)
bar = '=' * (filled_len - 1) + '>' + ' ' * (bar_len - filled_len)
if count == total - 1:
bar = '=' * bar_len
end_char = '\n'
msg = '\r[%s] %s%s [%s/%s] ... %s ' % (bar, percents, '%', count + 1, total, status)
print(msg, end=end_char, flush=True)
def format_list(in_list, format_str=""):
format_str = "{:" + format_str + "}"
return "[" + (", ".join([format_str.format(ii) for ii in in_list])) + "]"
class Animations(enum.IntEnum):
rotation = 0
rotation_inv = 1
zoom_in = 2
zoom_out = 3
translation = 4
translation_inv = 5
long_translation = 6
long_translation_inv = 7
class FramesActions:
class Type(enum.IntEnum):
mirror = 0
zoom = 1
crop = 2
rotation = 3
blur = 4
distortion = 5
brightness = 6
class Function(enum.IntEnum):
linear = 0
polynomial = 1
polynomial_inv = 2
class MirrorDirection(enum.IntEnum):
all_directions_1 = 0
left_1 = 1
right_1 = 2
left_3 = 3
right_3 = 4
def __init__(self, action_type=Type.mirror):
self.action_type = action_type
self.values = []
self.function = FramesActions.Function.linear
class AnimationActions:
def __init__(self, max_zoom, max_brightness, max_rotation, max_blur, max_distortion, half_animation_num_frames):
self.phase1_actions = []
self.phase2_actions = []
self.max_zoom = max_zoom
self.max_brightness = max_brightness
self.max_rotation = max_rotation
self.max_blur = max_blur
self.max_distortion = max_distortion
self.half_animation_num_frames = half_animation_num_frames
def get_actions_values(self, animation_type):
if animation_type == Animations.rotation:
self._get_rotation_actions(clockwise=True)
elif animation_type == Animations.rotation_inv:
self._get_rotation_actions(clockwise=False)
elif animation_type == Animations.translation:
self._get_translation_actions(left2right=True)
elif animation_type == Animations.translation_inv:
self._get_translation_actions(left2right=False)
elif animation_type == Animations.zoom_in:
self._get_zoom_actions(inward_direction=True)
elif animation_type == Animations.zoom_out:
self._get_zoom_actions(inward_direction=False)
elif animation_type == Animations.long_translation:
self._get_long_translation_actions(left2right=True)
elif animation_type == Animations.long_translation_inv:
self._get_long_translation_actions(left2right=False)
self._print_info(animation_type)
return self.phase1_actions, self.phase2_actions
def _get_long_translation_actions(self, left2right=True):
num_frames1 = self.half_animation_num_frames
num_frames1_30p = int(round(num_frames1 * 0.3, 0))
num_frames1_50p = int(round(num_frames1 * 0.5, 0))
num_frames2 = 2 * self.half_animation_num_frames
num_frames2_30p = int(round(num_frames2 * 0.3, 0))
# --- mirror frames ---
direction1, direction2 = FramesActions.MirrorDirection.right_1, FramesActions.MirrorDirection.left_3
if not left2right:
direction1, direction2 = FramesActions.MirrorDirection.left_1, FramesActions.MirrorDirection.right_3
fa_mirror1 = FramesActions(FramesActions.Type.mirror)
[fa_mirror1.values.append(direction1) for _ in range(num_frames1)]
self.phase1_actions.append(fa_mirror1)
fa_mirror2 = FramesActions(FramesActions.Type.mirror)
[fa_mirror2.values.append(direction2) for _ in range(num_frames2)]
self.phase2_actions.append(fa_mirror2)
# --- crop ---
crop_1_values, crop_2_values = (0, 1), (0, 2, 3)
if not left2right:
crop_1_values, crop_2_values = (1, 0), (3, 2, 0)
fa_crop1 = FramesActions(FramesActions.Type.crop)
self._polynomial(fa_crop1, crop_1_values[0], crop_1_values[1], num_frames1)
fa_crop1.values = [(v, 0) for v in fa_crop1.values]
self.phase1_actions.append(fa_crop1)
fa_crop2 = FramesActions(FramesActions.Type.crop)
# self._linear(fa_crop2, crop_2_values[0], crop_2_values[1], num_frames1)
self._polynomial_inv(fa_crop2, crop_2_values[0], crop_2_values[2], 2 * num_frames1)
fa_crop2.values = [(v, 0) for v in fa_crop2.values]
self.phase2_actions.append(fa_crop2)
# --- brightness ---
if _LIMITS["brightness"][0] <= self.max_brightness <= _LIMITS["brightness"][1] and self.max_brightness != 1:
fa_br1, fa_br2 = FramesActions(FramesActions.Type.brightness), FramesActions(FramesActions.Type.brightness)
self._polynomial(fa_br1, 1.0, self.max_brightness, num_frames1)
fa_br2.values = [self.max_brightness for _ in range(num_frames1)]
self._polynomial_inv(fa_br2, self.max_brightness, 1.0, num_frames1)
self.phase1_actions.append(fa_br1)
self.phase2_actions.append(fa_br2)
# --- blur ---
if _LIMITS["blur"][0] < self.max_blur <= _LIMITS["blur"][1]:
fa_bl1, fa_bl2 = FramesActions(FramesActions.Type.blur), FramesActions(FramesActions.Type.blur)
fa_bl1.values = [0 for _ in range(num_frames1_30p)]
self._polynomial(fa_bl1, 0.0, self.max_blur, num_frames1 - num_frames1_30p)
self._polynomial(fa_bl2, self.max_blur, 0.0, num_frames2)
self.phase1_actions.append(fa_bl1)
self.phase2_actions.append(fa_bl2)
# --- distortion ---
if _LIMITS["distortion"][0] < self.max_distortion <= _LIMITS["distortion"][1]:
fa_ds1, fa_ds2 = FramesActions(FramesActions.Type.distortion), FramesActions(FramesActions.Type.distortion)
self._polynomial(fa_ds1, 0.0, self.max_distortion, num_frames1 - num_frames1_50p)
fa_ds1.values += [self.max_distortion for _ in range(num_frames1_50p)]
fa_ds2.values = [self.max_distortion for _ in range(num_frames1 + num_frames1_50p)]
self._polynomial(fa_ds2, self.max_distortion, 0.0, num_frames1 - num_frames1_50p)
self.phase1_actions.append(fa_ds1)
self.phase2_actions.append(fa_ds2)
def _get_zoom_actions(self, inward_direction=True):
num_frames = self.half_animation_num_frames
num_frames_30p = int(round(num_frames * 0.3, 0))
num_frames_50p = int(round(num_frames * 0.5, 0))
# --- mirror frames ---
for phase_fas in [self.phase1_actions, self.phase2_actions]:
fa_mirror = FramesActions(FramesActions.Type.mirror)
for _ in range(num_frames):
fa_mirror.values.append(FramesActions.MirrorDirection.all_directions_1)
phase_fas.append(fa_mirror)
# --- zoom ---
zoom_1v, zoom_2v = self.max_zoom, 1 / self.max_zoom
if not inward_direction:
zoom_1v, zoom_2v = zoom_2v, zoom_1v
if _LIMITS["zoom"][0] <= self.max_zoom <= _LIMITS["zoom"][1]:
fa_zoom1, fa_zoom2 = FramesActions(FramesActions.Type.zoom), FramesActions(FramesActions.Type.zoom)
self._polynomial(fa_zoom1, 1.0, zoom_1v, num_frames)
self.phase1_actions.append(fa_zoom1)
self._polynomial_inv(fa_zoom2, zoom_2v, 1.0, num_frames)
self.phase2_actions.append(fa_zoom2)
# --- crop ---
for phase_fas in [self.phase1_actions, self.phase2_actions]:
fa_crop = FramesActions(FramesActions.Type.crop)
for _ in range(num_frames):
fa_crop.values.append((1, 1))
phase_fas.append(fa_crop)
# --- brightness ---
if _LIMITS["brightness"][0] <= self.max_brightness <= _LIMITS["brightness"][1] and self.max_brightness != 1:
self._symmetric_action_value(self._linear, FramesActions.Type.brightness, 1,
self.max_brightness, num_frames)
# --- blur ---
if _LIMITS["blur"][0] < self.max_blur <= _LIMITS["blur"][1]:
self._symmetric_action_value(self._polynomial, FramesActions.Type.blur, 0,
self.max_blur, num_frames, num_f_a_duplicates=num_frames_30p)
# --- distortion ---
if _LIMITS["distortion"][0] < self.max_distortion <= _LIMITS["distortion"][1]:
self._symmetric_action_value(self._polynomial_inv, FramesActions.Type.distortion, 0,
self.max_distortion, num_frames, num_f_b_duplicates=num_frames_50p)
def _get_translation_actions(self, left2right=True):
num_frames = self.half_animation_num_frames
num_frames_30p = int(round(num_frames * 0.3, 0))
num_frames_50p = int(round(num_frames * 0.5, 0))
# --- mirror frames ---
direction1, direction2 = FramesActions.MirrorDirection.right_1, FramesActions.MirrorDirection.left_1
if not left2right:
direction1, direction2 = direction2, direction1
fa_mirror1 = FramesActions(FramesActions.Type.mirror)
[fa_mirror1.values.append(direction1) for _ in range(num_frames)]
self.phase1_actions.append(fa_mirror1)
fa_mirror2 = FramesActions(FramesActions.Type.mirror)
[fa_mirror2.values.append(direction2) for _ in range(num_frames)]
self.phase2_actions.append(fa_mirror2)
# --- crop ---
crop_f_a, crop_f_b = 0, 1
if not left2right:
crop_f_a, crop_f_b = 1, 0
fa_crop1 = FramesActions(FramesActions.Type.crop)
self._polynomial(fa_crop1, crop_f_a, crop_f_b, num_frames)
fa_crop1.values = [(v, 0) for v in fa_crop1.values]
self.phase1_actions.append(fa_crop1)
fa_crop2 = FramesActions(FramesActions.Type.crop)
self._polynomial_inv(fa_crop2, crop_f_a, crop_f_b, num_frames)
fa_crop2.values = [(v, 0) for v in fa_crop2.values]
self.phase2_actions.append(fa_crop2)
# --- brightness ---
if _LIMITS["brightness"][0] <= self.max_brightness <= _LIMITS["brightness"][1] and self.max_brightness != 1:
self._symmetric_action_value(self._linear, FramesActions.Type.brightness, 1,
self.max_brightness, num_frames)
# --- blur ---
if _LIMITS["blur"][0] < self.max_blur <= _LIMITS["blur"][1]:
self._symmetric_action_value(self._polynomial, FramesActions.Type.blur, 0,
self.max_blur, num_frames, num_f_a_duplicates=num_frames_30p)
# --- distortion ---
if _LIMITS["distortion"][0] < self.max_distortion <= _LIMITS["distortion"][1]:
self._symmetric_action_value(self._polynomial_inv, FramesActions.Type.distortion, 0,
self.max_distortion, num_frames, num_f_b_duplicates=num_frames_50p)
def _get_rotation_actions(self, clockwise=True):
num_frames = self.half_animation_num_frames
num_frames_30p = int(round(num_frames * 0.3, 0))
num_frames_50p = int(round(num_frames * 0.5, 0))
# --- mirror frames ---
for phase_fas in [self.phase1_actions, self.phase2_actions]:
fa_mirror = FramesActions(FramesActions.Type.mirror)
for _ in range(num_frames):
fa_mirror.values.append(FramesActions.MirrorDirection.all_directions_1)
phase_fas.append(fa_mirror)
# --- rotation ---
if _LIMITS["rotation"][0] < self.max_rotation <= _LIMITS["rotation"][1]:
mul = 1 if clockwise else -1
fa1_rot, fa2_rot = FramesActions(FramesActions.Type.rotation), FramesActions(FramesActions.Type.rotation)
self._polynomial(fa1_rot, 0, - mul * self.max_rotation, num_frames)
self._polynomial_inv(fa2_rot, mul * self.max_rotation, 0, num_frames)
self.phase1_actions.append(fa1_rot)
self.phase2_actions.append(fa2_rot)
# --- crop ---
for phase_fas in [self.phase1_actions, self.phase2_actions]:
fa_crop = FramesActions(FramesActions.Type.crop)
for _ in range(num_frames):
fa_crop.values.append((1, 1))
phase_fas.append(fa_crop)
# --- brightness ---
if _LIMITS["brightness"][0] <= self.max_brightness <= _LIMITS["brightness"][1] and self.max_brightness != 1:
self._symmetric_action_value(self._linear, FramesActions.Type.brightness, 1,
self.max_brightness, num_frames)
# --- blur ---
if _LIMITS["blur"][0] < self.max_blur <= _LIMITS["blur"][1]:
self._symmetric_action_value(self._polynomial, FramesActions.Type.blur, 0,
self.max_blur, num_frames, num_f_a_duplicates=num_frames_30p)
# --- distortion ---
if _LIMITS["distortion"][0] < self.max_distortion <= _LIMITS["distortion"][1]:
self._symmetric_action_value(self._polynomial_inv, FramesActions.Type.distortion, 0,
self.max_distortion, num_frames, num_f_b_duplicates=num_frames_50p)
def _symmetric_action_value(self, func, action_type, f_a, f_b, length,
num_f_a_duplicates=0, num_f_b_duplicates=0, phase2_multiplier=1):
p2m = phase2_multiplier
phase1_fa = FramesActions(action_type)
phase2_fa = FramesActions(action_type)
[phase1_fa.values.append(f_a) for _ in range(num_f_a_duplicates)]
[phase2_fa.values.append(f_b * p2m) for _ in range(num_f_b_duplicates)]
func(phase1_fa, f_a, f_b, length - num_f_a_duplicates - num_f_b_duplicates)
if phase1_fa.function == FramesActions.Function.linear:
self._linear(phase2_fa, f_b * p2m, f_a * p2m, length - num_f_a_duplicates - num_f_b_duplicates)
elif phase1_fa.function == FramesActions.Function.polynomial:
self._polynomial_inv(phase2_fa, f_b * p2m, f_a * p2m, length - num_f_a_duplicates - num_f_b_duplicates)
elif phase1_fa.function == FramesActions.Function.polynomial_inv:
self._polynomial(phase2_fa, f_b * p2m, f_a * p2m, length - num_f_a_duplicates - num_f_b_duplicates)
else:
log_error("this should never happens")
[phase1_fa.values.append(f_b) for _ in range(num_f_b_duplicates)]
[phase2_fa.values.append(f_a * p2m) for _ in range(num_f_a_duplicates)]
self.phase1_actions.append(phase1_fa)
self.phase2_actions.append(phase2_fa)
def _print_info(self, animation_type):
log_info("")
log_debug("".center(80, "="))
log_info(" Transition animation info ".center(80, "="))
log_debug("".center(80, "="))
animation_types = {0: "clockwise rotation", 1: "anticlockwise rotation", 2: "zoom in", 3: "zoom out",
4: "translation (left to right)", 5: "translation (right to left)",
6: "long translation (left to right)", 7: "inverse long translation(right to left)"}
log_info(f"transition animation type: [{animation_types[animation_type]}]")
log_info(f"transition activated effects (in order):")
phase1_activated = [action.action_type.name for action in self.phase1_actions]
phase2_activated = [action.action_type.name for action in self.phase2_actions]
log_info(f"* phase 1 activated effects: [{', '.join(phase1_activated)}]")
log_info(f"* phase 2 activated effects: [{', '.join(phase2_activated)}]")
log_debug("")
for phase_idx, actions in enumerate([self.phase1_actions, self.phase2_actions]):
log_debug(f" transition phase_{phase_idx + 1} ".center(80, "-"))
for action in actions:
if action.action_type == FramesActions.Type.mirror:
log_debug(f"mirroring frames, type: [{action.action_type.name}], "
f"function: [{action.function.name}]")
log_debug(f"* values: [{action.values[0].name}] - num frames: [{len(action.values)}]")
elif action.action_type == FramesActions.Type.zoom:
log_debug(f"zoom effect, max value: [{self.max_zoom:.1%}], function: [{action.function.name}]")
log_debug(f"* values: {format_list(action.values, '.1%')}")
elif action.action_type == FramesActions.Type.crop:
log_debug(f"crop effect")
cropped = [f"({v[0]:g}, {v[1]:g})" for v in action.values]
log_debug(f"* values: {format_list(cropped, 's')}, function: [{action.function.name}]")
elif action.action_type == FramesActions.Type.rotation:
log_debug(f"rotation effect, max value (in degrees): [{self.max_rotation:.1f}], "
f"function: [{action.function.name}]")
log_debug(f"* values (degree): {format_list(action.values, '.1f')}")
elif action.action_type == FramesActions.Type.blur:
log_debug(f"blur effect, max value: [{self.max_blur:.1%}], function: [{action.function.name}]")
log_debug(f"* values: {format_list(action.values, '.1%')}")
elif action.action_type == FramesActions.Type.distortion:
log_debug(f"len pincushion distortion effect, max value: [{self.max_distortion:.1%}], "
f"function: [{action.function.name}]")
log_debug(f"* values: {format_list(action.values, '.1%')}")
elif action.action_type == FramesActions.Type.brightness:
log_debug(f"brightness effect, max value: [{self.max_brightness:.1%}], "
f"function: [{action.function.name}]")
log_debug(f"* values: {format_list(action.values, '.1%')}")
log_debug("")
log_debug("")
@staticmethod
def _linear(frame_action, f_a, f_b, length):
xa, xb = 0, length - 1
c1 = (f_b - f_a) / (xb - xa)
c2 = f_a - c1 * xa
for xi in range(length):
frame_action.values.append(c1 * xi + c2)
frame_action.function = FramesActions.Function.linear
@staticmethod
def _polynomial(frame_action, f_a, f_b, length, strength=3.0):
xa, xb = 0, length - 1
c1 = (f_b - f_a) / ((xb - xa) ** strength)
c2 = f_a
for xi in range(length):
frame_action.values.append(c1 * ((xi - xa) ** strength) + c2)
frame_action.function = FramesActions.Function.polynomial
@staticmethod
def _polynomial_inv(frame_action, f_a, f_b, length, strength=3.0):
AnimationActions._polynomial(frame_action, f_a, f_b, length, 1 / strength)
frame_action.function = FramesActions.Function.polynomial_inv
class AnimationImages:
class PincushionDeformation:
def __init__(self, strength=0.2, zoom=1.2, auto_zoom=False):
self.correction_radius = None
self.zoom = zoom
self.strength = strength
if strength <= 0:
self.strength = 0.00001
self.auto_zoom = auto_zoom
self.half_height = None
self.half_width = None
def transform(self, x, y):
new_x = x - self.half_width
new_y = y - self.half_height
distance = math.sqrt(new_x ** 2 + new_y ** 2)
r = distance / self.correction_radius
if r == 0:
theta = 1
else:
theta = math.atan(r) / r
source_x = self.half_width + theta * new_x * self.zoom
source_y = self.half_height + theta * new_y * self.zoom
return source_x, source_y
def transform_rectangle(self, x0, y0, x1, y1):
return (*self.transform(x0, y0),
*self.transform(x0, y1),
*self.transform(x1, y1),
*self.transform(x1, y0))
def determine_parameters(self, img):
width, height = img.size
self.half_width = width / 2
self.half_height = height / 2
self.correction_radius = (min(self.half_width, self.half_height) * 10) * (1 - self.strength) ** 2 + 1
# print(f"correction radius => {self.correction_radius}")
if self.auto_zoom:
r = math.sqrt(min(self.half_height, self.half_width) ** 2) / self.correction_radius
self.zoom = r / math.atan(r)
def get_debug_info(self, img):
self.determine_parameters(img)
w, h = img.size
msg = [" lens distortion debug info ".center(80, '=')]
msg += [f"input image size: [w:{w}, h:{h}]"]
if not self.auto_zoom:
msg += [f"strength: [{self.strength:.0%}] , automatic zoom: [Off] , provided zoom: [{self.zoom:.0%}]"]
else:
msg += [f"strength: [{self.strength:.0%}] , automatic zoom: [On] , calculated zoom: [{self.zoom:.0%}]"]
msg += ["corner points displacement:"]
points = {"top-left": (0, 0), "top-center": (self.half_width, 0), "top-right": (w, 0),
"left": (0, self.half_height), "right": (w, self.half_height),
"bottom-left": (0, h), "bottom-center": (self.half_width, h), "bottom-right": (w, h)}
for key, value in points.items():
res = self.transform(value[0], value[1])
msg += [f"* {key:<13s} [x:{res[0]:<6.1f}, y:{res[1]:<6.1f}] => [{value[0]:<4.0f}, {value[1]:<4.0f}]"]
msg += [""]
return msg
def getmesh(self, img):
self.determine_parameters(img)
width, height = img.size
grid_space = 20
target_grid = []
for x in range(0, width, grid_space):
for y in range(0, height, grid_space):
target_grid.append((x, y, x + grid_space, y + grid_space))
source_grid = [self.transform_rectangle(*rect) for rect in target_grid]
return [t for t in zip(target_grid, source_grid)]
@staticmethod
def make_transition(working_dir, in_images1, in_images2, in_actions1, in_actions2, debug=False):
log_info("")
log_debug("".center(80, "="))
log_info(" Transition image processing ".center(80, "="))
log_debug("".center(80, "="))
images_path = [in_images1, in_images2]
res_folder = [None, None]
peak_distortion_msg = []
peak_distortion_value = 0.0
peak_distortion_img = None
for phase_idx, actions in enumerate([in_actions1, in_actions2]):
log_debug("=" * 80)
log_info(f"processing transition phase_{phase_idx+1} images")
for img_idx, img_path in enumerate(images_path[phase_idx]):
if not debug:
progress(img_idx, len(images_path[phase_idx]), f"phase_{phase_idx+1} images")
img = Image.open(str(img_path))
original_size = img.size
log_debug(f" image [{img_idx+1}/{len(images_path[phase_idx])}] processing ".center(80, "-"))
log_debug(f"image path {img_path}")
for action_idx, action in enumerate(actions):
suffix = action.action_type.name
if action_idx == len(actions) - 1:
suffix += "_final"
img_save_folder = working_dir / f"{action_idx+2}_phase{phase_idx+1}_{suffix}"
img_save_folder.mkdir(exist_ok=True)
if action_idx == len(actions) - 1:
res_folder[phase_idx] = img_save_folder
value = action.values[img_idx]
msg = f"phase_{phase_idx+1} - img [{img_idx+1}/{len(images_path[phase_idx])}]"
if isinstance(value, tuple):
msg += f" - action [{action.action_type.name} => ({value[0]:.1%}, {value[1]:.1%})]"
else:
msg += f" - action [{action.action_type.name} => {value:g}]"
msg += f" - folder [{img_save_folder.name}]"
log_debug(msg)
if action.action_type == FramesActions.Type.mirror:
img = AnimationImages.mirror_image_effect(img, value)
elif action.action_type == FramesActions.Type.zoom:
img = AnimationImages.zoom_effect(img, value)
elif action.action_type == FramesActions.Type.crop:
img = AnimationImages.crop_effect(img, value, original_size)
elif action.action_type == FramesActions.Type.rotation:
img = AnimationImages.rotation_effect(img, value)
elif action.action_type == FramesActions.Type.blur:
img = AnimationImages.blur_effect(img, value)
elif action.action_type == FramesActions.Type.distortion:
img = AnimationImages.distortion_effect(img, value)
if value > peak_distortion_value:
peak_distortion_msg = AnimationImages.PincushionDeformation(value, 1.0).get_debug_info(img)
peak_distortion_value = value
peak_distortion_img = img_path
elif action.action_type == FramesActions.Type.brightness:
img = AnimationImages.brightness_effect(img, value)
if debug or action_idx == len(actions) - 1:
img.save(str(img_save_folder / img_path.name))
log_debug("")
if peak_distortion_img is not None:
log_debug(f"peak distortion effect: value [{peak_distortion_value}:.1%], img path: [{peak_distortion_img}]")
for line in peak_distortion_msg:
log_debug(line)
return res_folder
@staticmethod
def mirror_image_effect(in_img, mirror_direction):
images = [in_img, in_img.transpose(0), in_img.transpose(1),
in_img.transpose(0).transpose(1)]
w, h = in_img.width, in_img.height
if mirror_direction == FramesActions.MirrorDirection.all_directions_1:
new_size = (3 * w, 3 * h)
pos_dict = {(0, 0): 3, (1, 0): 2, (2, 0): 3,
(0, 1): 1, (1, 1): 0, (2, 1): 1,
(0, 2): 3, (1, 2): 2, (2, 2): 3}
elif mirror_direction == FramesActions.MirrorDirection.left_1:
new_size = (2 * w, 1 * h)
pos_dict = {(0, 0): 1, (1, 0): 0}
elif mirror_direction == FramesActions.MirrorDirection.right_1:
new_size = (2 * w, 1 * h)
pos_dict = {(0, 0): 0, (1, 0): 1}
elif mirror_direction == FramesActions.MirrorDirection.left_3:
new_size = (4 * w, 1 * h)
pos_dict = {(0, 0): 1, (1, 0): 0, (2, 0): 1, (3, 0): 0}
elif mirror_direction == FramesActions.MirrorDirection.right_3:
new_size = (4 * w, 1 * h)
pos_dict = {(0, 0): 0, (1, 0): 1, (2, 0): 0, (3, 0): 1}
else:
return in_img
res = Image.new('RGB', new_size)
[res.paste(images[idx], (w * xy[0], h * xy[1])) for xy, idx in pos_dict.items()]
return res
@staticmethod
def zoom_effect(in_img, zoom_value):
w, h = in_img.size
zoom2 = zoom_value * 2
new_img = in_img.crop((w/2 - w / zoom2, h/2 - h / zoom2, w/2 + w / zoom2, h/2 + h / zoom2))
try:
return new_img.resize((w, h), Image.Resampling.BICUBIC)
except AttributeError:
return new_img.resize((w, h), Image.BICUBIC)
@staticmethod
def crop_effect(in_img, top_left_corner, original_img_size):
h, w = original_img_size[0], original_img_size[1]
tfc_x, tfc_y = int(round(top_left_corner[0] * h, 0)), int(round(top_left_corner[1] * w, 0))
return in_img.crop((tfc_x, tfc_y, tfc_x + h, tfc_y + w))
@staticmethod
def rotation_effect(in_img, rot_angle):
return in_img.rotate(rot_angle)
@staticmethod
def blur_effect(in_img, blur_value):
blue_strength = min(in_img.size[0], in_img.size[1]) * blur_value * 0.1
# print(blue_strength)
return in_img.filter(ImageFilter.GaussianBlur(blue_strength))
@staticmethod
def distortion_effect(in_img, distortion_strength):
return ImageOps.deform(in_img, AnimationImages.PincushionDeformation(distortion_strength, 1.0))
@staticmethod
def brightness_effect(in_img, brightness_value):
enhancer = ImageEnhance.Brightness(in_img)
return enhancer.enhance(brightness_value)
class DataHandler:
def __init__(self):
self.start_time = datetime.datetime.now()
self.tmp_path = None
self.output = None
self.input_vid1 = None
self.input_vid2 = None
self.phase1_vid = None
self.phase2_vid = None
self.merged_vid = None
self.fps = 30
self.vid1_raw_images_folder = None
self.vid2_raw_images_folder = None
self.phase1_images = []
self.phase2_images = []
self.animation = None
def verify_arguments(self, in_args, in_tmp_path):
self.tmp_path = in_tmp_path
self.output = pathlib.Path(in_args.output)
if in_args.output == "":
self._suggest_output(in_args.output)
if in_args.debug:
self.tmp_path = self.output.parent / (self.output.stem + "_debug")
if self.tmp_path.is_dir():
shutil.rmtree(str(self.tmp_path))
self.tmp_path.mkdir()
self._setup_logging(in_args.debug, self.tmp_path / f"{__package__}.log")
intro_print(in_args.art)
if not self._verify_critical_info(in_args):
return False
self.phase1_vid = self.output.parent / (self.output.stem + "_phase1" + _OUTPUT_VIDEO_TYPE)
self.phase2_vid = self.output.parent / (self.output.stem + "_phase2" + _OUTPUT_VIDEO_TYPE)
self.merged_vid = self.output.parent / (self.output.stem + "_merged" + _OUTPUT_VIDEO_TYPE)
log_info(f"first input video: {self.input_vid1}")
log_info(f"second input video: {self.input_vid2}")
if in_args.merge:
log_debug(f"transition phase1 video: {self.phase1_vid}")
log_debug(f"transition phase2 video: {self.phase2_vid}")
log_info(f"output transition merged video: {self.merged_vid}")
else:
log_info(f"output transition phase1 video: {self.phase1_vid}")
log_info(f"output transition phase2 video: {self.phase2_vid}")
self._get_fps_from_video()
log_info(f"frames per second (FPS): {self.fps}")
self.vid1_raw_images_folder = self.tmp_path / "1_phase1_raw"
self.vid2_raw_images_folder = self.tmp_path / "1_phase2_raw"
self.vid1_raw_images_folder.mkdir()
log_debug(f"created vid1_raw_images_folder: {self.vid1_raw_images_folder}")
self.vid2_raw_images_folder.mkdir()
log_debug(f"created vid2_raw_images_folder: {self.vid2_raw_images_folder}")
if not self._extract_phase1_images(in_args.num_frames):
return False
num_frames_for_vid2 = in_args.num_frames
if self.animation == Animations.long_translation or self.animation == Animations.long_translation_inv:
num_frames_for_vid2 = 2 * in_args.num_frames
if not self._extract_phase2_images(num_frames_for_vid2):
return False
log_info(f"number of frames for phase1: [{len(self.phase1_images)}], for phase2: [{len(self.phase2_images)}]")
return True
def final_images_to_video(self, res_folders):
output_videos = [self.phase1_vid, self.phase2_vid]
fps = str(self.fps)
for idx in range(2):
log_info(f"merging phase_{idx} images into a video ...")
img_names = [f.stem for f in res_folders[idx].glob("*.png")]
img_names.sort()
start_idx = f"{max(int(img_names[0]) - 1, 0):04d}"
cmd = ["ffmpeg", "-hide_banner", "-start_number", start_idx, "-framerate", fps, "-y", "-r", fps, "-i",
str(res_folders[idx] / "%04d.png"), "-r", fps, "-vcodec", _OUTPUT_VIDEO_CODEC,
str(output_videos[idx])]
self._exec_command(cmd, f"command used for merging phase_{idx} images into a video ...")
if not output_videos[idx].is_file():
log_error(f"ffmpeg failed to convert images to: {output_videos[idx]}")
return False
return True
def _verify_critical_info(self, in_args):
if shutil.which("ffmpeg") is None:
log_error("'ffmpeg' is not installed, please install it before use")
return False
if len(in_args.input) < 2 or len(in_args.input) > 2:
log_error(f"2 input videos needed, [{len(in_args.input)}] provided")
return False
self.input_vid1 = pathlib.Path(in_args.input[0])
if not self.input_vid1.is_file():
log_error(f"could not find first video under: {self.input_vid1}")
return False
self.input_vid2 = pathlib.Path(in_args.input[1])
if not self.input_vid2.is_file():
log_error(f"could not find second video under: {self.input_vid2}")
return False
if in_args.num_frames < 2 or in_args.num_frames > 100:
log_error(f"number of frames per phase should be in the range [2, 100] (provided: [{in_args.num_frames}])")
return False
for animation_enum in Animations:
# print(f"{in_args.animation.lower().strip()} <-> {animation_enum.name}")
if in_args.animation.lower().strip() == animation_enum.name:
self.animation = animation_enum
break
if self.animation is None:
log_error(f"animation provided [{in_args.animation}] not recognized, please use one of the "
f"following animations:")
log_info(_ANIMATION_HELP)
return False
return True
def _extract_phase1_images(self, in_num_frames):
duration_ms = int(math.ceil(1000 * (in_num_frames + 2) / self.fps))
cmd = ["ffmpeg", "-hide_banner", "-sseof", f"-{duration_ms}ms", "-i", str(self.input_vid1),
str(self.vid1_raw_images_folder / "%04d.png")]
self._exec_command(cmd, "command used for extracting images from video num 1:")
for img_f in self.vid1_raw_images_folder.glob("*.png"):
self.phase1_images.append(img_f)
self.phase1_images.sort()
if len(self.phase1_images) < in_num_frames:
log_error(f"could not extract [{in_num_frames}] images from the first video "
f"({len(self.phase1_images)} extracted)")
return False
if len(self.phase1_images) > in_num_frames:
self.phase1_images = self.phase1_images[-in_num_frames:]
return True
def _extract_phase2_images(self, in_num_frames):
duration_ms = int(math.ceil(1000 * (in_num_frames + 2) / self.fps))
cmd = ["ffmpeg", "-hide_banner", "-to", f"{duration_ms}ms", "-i", str(self.input_vid2),
str(self.vid2_raw_images_folder / "%04d.png")]
self._exec_command(cmd, "command used for extracting images from video num 2:")
for img_f in self.vid2_raw_images_folder.glob("*.png"):
self.phase2_images.append(img_f)
self.phase2_images.sort()
if len(self.phase2_images) < in_num_frames:
log_error(f"could not extract [{in_num_frames}] images from the second video "
f"({len(self.phase2_images)} extracted)")
return False
if len(self.phase2_images) > in_num_frames:
self.phase2_images = self.phase2_images[:in_num_frames]
return True
@staticmethod
def _exec_command(in_cmd, in_presentation):
log_debug("")
log_debug(in_presentation)
log_debug("")
log_debug(" ".join(in_cmd))
res = subprocess.run(in_cmd, capture_output=True, text=True)
log_debug("")
log_debug("")
log_debug("stdout:")
log_debug("")
log_debug(res.stdout)
log_debug("")
log_debug("stderr:")
log_debug("")
log_debug(res.stderr)
log_debug("")
log_debug("")
return res.stdout, res.stderr
def _get_fps_from_video(self):
cmd = ["ffmpeg", "-hide_banner", "-i", str(self.input_vid1)]
stdout, stderr = self._exec_command(cmd, "command used for extracting FPS")
res = (stdout.lower() + " " + stderr.lower()).split(" ")
log_debug("searching for FPS value in ffmpeg video information")
for fps_word in ["fps", "fps,"]:
for idx, word in enumerate(res):
if word == fps_word:
try:
self.fps = int(res[idx - 1])
log_debug(f"FPS extracted from video [{self.fps}]")
return
except ValueError:
log_debug(f"failed extract FPS, value [{res[idx - 1]}], error :[{ValueError}]")
log_warning(f"cloud not retrieve FPS value from video (using ffmpeg): {self.input_vid1}")
log_warning("falling back to FPS value of [30]")
self.fps = 30
def get_duration_msg(self):
end_time = datetime.datetime.now()
t_delta = end_time - self.start_time
seconds = int(t_delta.total_seconds())
days, seconds = divmod(seconds, 86400)
hours, seconds = divmod(seconds, 3600)
minutes, seconds = divmod(seconds, 60)
if days > 0:
return '%d d %d h %d m %d s' % (days, hours, minutes, seconds)
elif hours > 0:
return '%d h %d m %d s' % (hours, minutes, seconds)
elif minutes > 0:
return '%d m %d s' % (minutes, seconds)
else:
return '%d s' % (seconds,)
def _suggest_output(self, in_output):
# self.output = pathlib.Path().cwd() / "vt_debug"
# return
if in_output != "":
out_path = pathlib.Path(in_output)
self.output = out_path.parent / out_path.stem
return
cur_dir = pathlib.Path().cwd()
video_files = [f.name for f in cur_dir.glob("*" + _OUTPUT_VIDEO_TYPE)]
num = 1
previous_num = 0
while previous_num != num:
previous_num = num
for vn in video_files:
if vn.startswith(f"vt{num}_"):
num += 1
self.output = cur_dir / f"vt{num}"
def merge_video_chunks(self): # TODO implement
log_info("merging the two phases video chunks into one transition video")
cmd = ["ffmpeg", "-hide_banner", "-i", str(self.phase1_vid), "-i", str(self.phase2_vid),
"-filter_complex", "[0:v] [1:v] concat=n=2:v=1 [v]", "-map", "[v]", str(self.merged_vid)]
self._exec_command(cmd, f"command used for merging phase video chunks into the output video ...")
if not self.merged_vid.is_file():
log_error(f"ffmpeg failed to merge video phases into: {self.merged_vid}")
return False
log_debug(f"remove output video phase1: {self.phase1_vid}")
self.phase1_vid.unlink(missing_ok=True)
log_debug(f"remove output video phase2: {self.phase2_vid}")
self.phase2_vid.unlink(missing_ok=True)
return True
@staticmethod
def _setup_logging(debug, log_file_path):
init_logger = logging.getLogger(__package__)
if debug:
init_logger.setLevel(logging.DEBUG)
else:
init_logger.setLevel(logging.INFO)
i_formatter = logging.Formatter('%(message)s')
ch = logging.StreamHandler()
ch.setFormatter(i_formatter)
init_logger.addHandler(ch)
if debug:
handler = logging.FileHandler(str(log_file_path), encoding='utf8')
n_formatter = logging.Formatter('[%(levelname)s] [%(asctime)s] - %(message)s', "%H:%M:%S")
handler.setFormatter(n_formatter)
handler.setLevel(logging.DEBUG)
init_logger.addHandler(handler)
def str2bool(v):
if isinstance(v, bool):
return v
if v.lower() in ('yes', 'true', 't', 'y', '1'):
return True
elif v.lower() in ('no', 'false', 'f', 'n', '0'):
return False
else:
raise argparse.ArgumentTypeError('Boolean value expected, possible values: yes, y, true, 1, no, n, false, 0.')
if __name__ == "__main__":
all_animation_names = ", ".join([animation_enum.name for animation_enum in Animations])
parser = argparse.ArgumentParser(formatter_class=argparse.ArgumentDefaultsHelpFormatter,
description='make a transition animation between two videos, using the last part '
'of the first video, and the first part of the second video')
parser.add_argument('-i', '--input', help='input videos, must be two', type=str, nargs='+', metavar='\b',
default=INPUT_VIDEOS)
parser.add_argument('-n', '--num_frames', help='the number of frames used for each animation phase, '
'most animations consists of two phases',
type=int, default=NUM_FRAMES, metavar='\b')
parser.add_argument('-a', '--animation', help=f'possible animations (use -a help to show more info): '
f'{all_animation_names} ',
type=str, default=ANIMATION, metavar='\b')
parser.add_argument('-o', '--output', help='the name of the output (determined automatically if left empty), '
'FPS is copied from the first video.',
type=str, default=OUTPUT, metavar='\b')
parser.add_argument('-r', '--max_rotation', help=f'rotation (in degree) value at the midpoint of the animation, '
f'possible range {list(_LIMITS["rotation"])}',
type=int, default=MAX_ROTATION, metavar='\b')
parser.add_argument('-d', '--max_distortion', help=f'lens distortion value at the midpoint of the animation'
f'(in percentage), possible range {list(_LIMITS["distortion"])}',
type=float, default=MAX_DISTORTION, metavar='\b')
parser.add_argument('-b', '--max_blur', help=f'gaussian blur value at the midpoint of the animation, '
f'(in percentage), possible range {list(_LIMITS["blur"])}',
type=float, default=MAX_BLUR, metavar='\b')
parser.add_argument('-s', '--max_brightness', help=f'brightness value at the midpoint of the animation, '
f'(in percentage), possible range {list(_LIMITS["brightness"])}',
type=float, default=MAX_BRIGHTNESS, metavar='\b')
parser.add_argument('-z', '--max_zoom', help=f'zoom value at the midpoint of the animation, '
f'(in percentage), possible range {list(_LIMITS["zoom"])}',
type=float, default=MAX_ZOOM, metavar='\b')
parser.add_argument('-g', '--debug', help='this will show more info, will create a logs file, '
'and will create a folder which contains animation images',
type=str2bool, default=DEBUG, metavar='\b')
parser.add_argument('-t', '--art', help='Display ASCII art', type=str2bool, default=ART, metavar='\b')
parser.add_argument('-e', '--remove', help='delete original videos after a successful animation creation',
type=str2bool, default=REMOVE_ORIGINAL, metavar='\b')
parser.add_argument('-m', '--merge', help='merge both phases video chunks into one transition video',
type=str2bool, default=MERGE_PHASES, metavar='\b')
args = parser.parse_args()
if args.animation.lower() == "help":
print(_ANIMATION_HELP)
exit(0)
with tempfile.TemporaryDirectory() as tmp_dir:
tmp_path = pathlib.Path(tmp_dir)
dh = DataHandler()
if not dh.verify_arguments(args, tmp_path):
exit(1)
actions_determinator = AnimationActions(args.max_zoom, args.max_brightness, args.max_rotation, args.max_blur,
args.max_distortion, args.num_frames)
phase1_actions, phase2_actions = actions_determinator.get_actions_values(dh.animation)
final_phase_folder = AnimationImages.make_transition(dh.tmp_path, dh.phase1_images, dh.phase2_images,
phase1_actions, phase2_actions, args.debug)
if not dh.final_images_to_video(final_phase_folder):
exit(1)
if args.merge:
if not dh.merge_video_chunks():
exit(1)
log_info(f"output transition video: {dh.merged_vid}")
else:
log_info(f"output transition phase1 video: {dh.phase1_vid}")
log_info(f"output transition phase2 video: {dh.phase2_vid}")
if args.remove:
log_debug(f"remove original video1: {dh.input_vid1}")
dh.input_vid1.unlink()
log_debug(f"remove original video2: {dh.input_vid2}")
dh.input_vid2.unlink()
log_info("")
log_info((f" Transition finished. Duration = {dh.get_duration_msg()} ".center(80, "=")))
log_info("")
end_print(args.art)
exit(0)
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