def save_and_transcode_video(data, extension, file_code):
temp_file_path = os.path.join(
settings.VIDEOS_FILE_PATH,
generate_file_path("{}.{}".format(file_code, extension))) + "_tmp"
save_dir = temp_file_path[:temp_file_path.rfind("/") + 1]
if not os.path.exists(save_dir):
os.makedirs(save_dir, mode=0o777)
with open(temp_file_path, "wb") as f:
f.write(data)
long_file_name = "{}.{}".format(file_code, settings.VIDEO_OUTPUT_EXTENSION)
save_file_path = os.path.join(settings.VIDEOS_FILE_PATH,
generate_file_path(long_file_name))
ffmpeg\
.input(temp_file_path)\
.filter("scale", height=settings.VIDEO_OUTPUT_HEIGHT, width="trunc(oh*a/2)*2")\
.output(save_file_path, **settings.VIDEO_OUTPUT_SETTINGS)\
.run(cmd=settings.FFMPEG_PATH)
os.remove(temp_file_path)
return long_file_name, save_file_path
def width_fit_media(max_length, filename):
if not is_image(filename):
return full_media(filename)
ok_filepath = generate_file_path(filename)
filepath = os.path.join(settings.IMAGES_FILE_PATH,
"width/{}/{}".format(max_length, ok_filepath))
if not os.path.exists(filepath):
try:
image = Image.open(
os.path.join(settings.FULL_IMAGE_FILE_PATH, ok_filepath))
except IOError:
return "Not found", 404
image_dir = filepath[:filepath.rfind("/") + 1]
if not os.path.exists(image_dir):
os.makedirs(image_dir, mode=0o777)
image_width = float(image.size[0])
image_height = float(image.size[1])
new_width = int(max_length)
new_height = int(new_width / image_width * image_height)
image.thumbnail((new_width, new_height), Image.ANTIALIAS)
image.save(filepath, quality=settings.IMAGE_QUALITY)
return x_accel_response("/images/width/{}/{}".format(
max_length, ok_filepath))
def square_fit_media(max_length, filename):
if not is_image(filename):
return full_media(filename)
ok_filepath = generate_file_path(filename)
filepath = os.path.join(settings.IMAGES_FILE_PATH,
"square/{}/{}".format(max_length, ok_filepath))
if not os.path.exists(filepath):
try:
image = Image.open(
os.path.join(settings.FULL_IMAGE_FILE_PATH, ok_filepath))
except IOError:
return "Not found", 404
image_dir = filepath[:filepath.rfind("/") + 1]
if not os.path.exists(image_dir):
os.makedirs(image_dir, mode=0o777)
image_width = float(image.size[0])
image_height = float(image.size[1])
image_square = int(min(image_width, image_height))
crop_coordinates_x = int(image_width / 2 - image_square / 2)
crop_coordinates_y = int(image_height / 2 - image_square / 2)
image = image.crop((crop_coordinates_x, crop_coordinates_y,
crop_coordinates_x + image_square,
crop_coordinates_y + image_square))
image.thumbnail((max_length, max_length), Image.ANTIALIAS)
image.save(filepath, quality=settings.IMAGE_QUALITY)
return x_accel_response("/images/square/{}/{}".format(
max_length, ok_filepath))
def save_full_image(data, extension, file_code):
long_file_name = "{}.{}".format(file_code, extension)
save_file_path = os.path.join(settings.FULL_IMAGE_FILE_PATH,
generate_file_path(long_file_name))
save_dir = save_file_path[:save_file_path.rfind("/") + 1]
if not os.path.exists(save_dir):
os.makedirs(save_dir, mode=0o777)
file = io.BytesIO(data)
image = Image.open(file)
image_width = float(image.size[0])
image_height = float(image.size[1])
orig_save_size = get_fit_image_size(image_width, image_height,
settings.ORIGINAL_IMAGE_MAX_LENGTH)
image.thumbnail(orig_save_size, Image.ANTIALIAS)
try:
image = auto_rotate_by_exif(image)
except (IOError, KeyError, AttributeError) as ex:
logger.error("Auto-rotation error: {}".format(ex))
image.save(save_file_path, quality=settings.IMAGE_QUALITY)
return long_file_name, save_file_path
def full_media(filename):
if is_image(filename):
return x_accel_response("/images/max/{}".format(
generate_file_path(filename)))
return x_accel_response("/videos/{}".format(generate_file_path(filename)))