removed the insignificant master version number badge

README.md

@@ -2,7 +2,6 @@
    <img src="https://user-images.githubusercontent.com/21986859/81626588-ae5ab800-93eb-11ea-918f-ebe98c2de40a.png"/>
 </p>
 
-![Master Branch Version](https://img.shields.io/badge/master-v4.0.0-9cf?style=flat-square)
 ![GitHub release (latest by date)](https://img.shields.io/github/v/release/k4yt3x/video2x?style=flat-square)
 ![GitHub Workflow Status](https://img.shields.io/github/workflow/status/k4yt3x/video2x/Video2X%20Nightly%20Build?label=Nightly&style=flat-square)
 ![GitHub All Releases](https://img.shields.io/github/downloads/k4yt3x/video2x/total?style=flat-square)

src/locale/zh_CN/LC_MESSAGES/zh_CN.po

@@ -5,8 +5,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: \n"
-"POT-Creation-Date: 2020-05-17 10:10-0400\n"
-"PO-Revision-Date: 2020-05-17 10:13-0400\n"
+"POT-Creation-Date: 2020-05-22 17:51-0400\n"
+"PO-Revision-Date: 2020-05-22 17:54-0400\n"
 "Last-Translator: \n"
 "Language-Team: \n"
 "Language: zh_CN\n"
@@ -21,199 +21,223 @@ msgstr ""
 msgid "Upscaling Progress"
 msgstr "放大进度"
 
-#: upscaler.py:109
+#: upscaler.py:110
 msgid "Specified or default cache directory is a file/link"
 msgstr "指定或默认的缓存目录是文件/链接"
 
-#: upscaler.py:115
+#: upscaler.py:116
 msgid "Creating cache directory {}"
 msgstr "创建缓存目录 {}"
 
-#: upscaler.py:118
+#: upscaler.py:119
 msgid "Unable to create {}"
 msgstr "无法创建 {}"
 
-#: upscaler.py:123
+#: upscaler.py:124
 msgid "Extracted frames are being saved to: {}"
 msgstr "提取的帧将被保存到：{}"
 
-#: upscaler.py:125
+#: upscaler.py:126
 msgid "Upscaled frames are being saved to: {}"
 msgstr "已放大的帧将被保存到：{}"
 
-#: upscaler.py:135
+#: upscaler.py:136
 msgid "Cleaning up cache directory: {}"
 msgstr "清理缓存目录：{}"
 
-#: upscaler.py:138
+#: upscaler.py:141
 msgid "Unable to delete: {}"
 msgstr "无法删除：{}"
 
-#: upscaler.py:144 upscaler.py:159 upscaler.py:170
+#: upscaler.py:147 upscaler.py:162 upscaler.py:173
 msgid "Input and output path type mismatch"
 msgstr "输入和输出路径类型不匹配"
 
-#: upscaler.py:145
+#: upscaler.py:148
 msgid "Input is multiple files but output is not directory"
 msgstr "输入是多个文件，但输出不是目录"
 
-#: upscaler.py:149
+#: upscaler.py:152
 msgid "Input path {} is neither a file nor a directory"
 msgstr "输入路径 {} 既不是文件也不是目录"
 
-#: upscaler.py:153 upscaler.py:175
+#: upscaler.py:156 upscaler.py:178
 msgid "Input directory and output directory cannot be the same"
 msgstr "输入目录和输出目录不能相同"
 
-#: upscaler.py:160
+#: upscaler.py:163
 msgid "Input is single file but output is directory"
 msgstr "所选的输入路径是单个文件，但输出路径是目录"
 
-#: upscaler.py:163
+#: upscaler.py:166
 msgid "No suffix found in output file path"
 msgstr "在输出文件路径中未找到后缀"
 
-#: upscaler.py:164
+#: upscaler.py:167
 msgid "Suffix must be specified"
 msgstr "必须指定文件后缀"
 
-#: upscaler.py:171
+#: upscaler.py:174
 msgid "Input is directory but output is existing single file"
 msgstr "输入是目录，但输出是现有的单个文件"
 
-#: upscaler.py:180
+#: upscaler.py:183
 msgid "Input path is neither a file nor a directory"
 msgstr "输入路径既不是文件也不是目录"
 
-#: upscaler.py:189
+#: upscaler.py:192
 msgid "FFmpeg or FFprobe cannot be found under the specified path"
 msgstr "在指定的路径下找不到 FFmpeg 或 FFprobe"
 
-#: upscaler.py:190 upscaler.py:200
+#: upscaler.py:193 upscaler.py:203
 msgid "Please check the configuration file settings"
 msgstr "请检查配置文件设置"
 
-#: upscaler.py:199
+#: upscaler.py:202
 msgid "Specified driver executable directory doesn't exist"
 msgstr "指定驱动的可执行文件不存在"
 
-#: upscaler.py:226
+#: upscaler.py:229
 msgid "Failed to parse driver argument: {}"
 msgstr "解析驱动程序参数失败：{}"
 
-#: upscaler.py:258
+#: upscaler.py:261
 msgid "Unrecognized driver: {}"
 msgstr "无法识别的驱动名称：{}"
 
-#: upscaler.py:298
+#: upscaler.py:301
 msgid "Starting progress monitor"
 msgstr "启动进度监视器"
 
-#: upscaler.py:303
+#: upscaler.py:306
 msgid "Starting upscaled image cleaner"
 msgstr "启动已放大图像清理程序"
 
-#: upscaler.py:312 upscaler.py:329
+#: upscaler.py:315 upscaler.py:332
 msgid "Killing progress monitor"
 msgstr "终结进度监视器"
 
-#: upscaler.py:315 upscaler.py:332
+#: upscaler.py:318 upscaler.py:335
 msgid "Killing upscaled image cleaner"
 msgstr "终结已放大图像清理程序"
 
-#: upscaler.py:336
+#: upscaler.py:339
 msgid "Terminating all processes"
 msgstr "正在终止所有进程"
 
-#: upscaler.py:343
+#: upscaler.py:346
 msgid "Main process waiting for subprocesses to exit"
 msgstr "主进程开始等待子进程结束"
 
-#: upscaler.py:362 upscaler.py:366
+#: upscaler.py:365 upscaler.py:369
 msgid "Subprocess {} exited with code {}"
 msgstr "子进程 {} 结束，返回码 {}"
 
-#: upscaler.py:372
+#: upscaler.py:375
 msgid "Stop signal received"
 msgstr "收到停止信号"
 
-#: upscaler.py:377
+#: upscaler.py:380
 msgid "Subprocess execution ran into an error"
 msgstr "子进程执行遇到错误"
 
-#: upscaler.py:425
-msgid "Upscaling single file: {}"
-msgstr "放大单个文件：{}"
+#: upscaler.py:410
+msgid "Loading files into processing queue"
+msgstr "正在将文件添加到处理队列中"
 
-#: upscaler.py:461
+#: upscaler.py:415
+msgid "Loading files from multiple paths"
+msgstr "正在从多个路径中导入文件"
+
+#: upscaler.py:416 upscaler.py:435 upscaler.py:442
+msgid "Input path(s): {}"
+msgstr "输入路径：{}"
+
+#: upscaler.py:434
+msgid "Loading single file"
+msgstr "正在导入单个文件"
+
+#: upscaler.py:441
+msgid "Loading files from directory"
+msgstr "正在从文件夹中导入文件"
+
+#: upscaler.py:455
+msgid "Loaded files into processing queue"
+msgstr "文件已添加到处理队列"
+
+#: upscaler.py:458
+msgid "Input file: {}"
+msgstr "输入文件：{}"
+
+#: upscaler.py:485
 msgid "Starting to upscale image"
 msgstr "开始放大图像"
 
-#: upscaler.py:464 upscaler.py:526
+#: upscaler.py:488 upscaler.py:550
 msgid "Upscaling completed"
 msgstr "放大完成"
 
-#: upscaler.py:478
+#: upscaler.py:502
 msgid "Reading video information"
 msgstr "读取视频信息"
 
-#: upscaler.py:492
+#: upscaler.py:516
 msgid "Aborting: No video stream found"
 msgstr "程序中止：文件中未找到视频流"
 
-#: upscaler.py:497
+#: upscaler.py:521
 msgid "Framerate: {}"
 msgstr "帧率：{}"
 
-#: upscaler.py:514
+#: upscaler.py:538
 msgid "Unsupported pixel format: {}"
 msgstr "不支持的像素格式：{}"
 
-#: upscaler.py:524
+#: upscaler.py:548
 msgid "Starting to upscale extracted frames"
 msgstr "开始对提取的帧进行放大"
 
-#: upscaler.py:531
-msgid "File {} ({}) neither an image of a video"
+#: upscaler.py:555
+msgid "File {} ({}) neither an image nor a video"
 msgstr "文件 {} （{}） 既不是图片也不是视频"
 
-#: upscaler.py:532
+#: upscaler.py:556
 msgid "Skipping this file"
 msgstr "将跳过此文件"
 
-#: upscaler.py:542
+#: upscaler.py:566
 msgid "Converting extracted frames into GIF image"
 msgstr "正在将提取的帧转换为 GIF"
 
-#: upscaler.py:546 upscaler.py:555
+#: upscaler.py:570 upscaler.py:579
 msgid "Conversion completed"
 msgstr "转换已完成"
 
-#: upscaler.py:551
+#: upscaler.py:575
 msgid "Converting extracted frames into video"
 msgstr "正在将提取的帧转换为视频"
 
-#: upscaler.py:559
+#: upscaler.py:583
 msgid "Migrating audio, subtitles and other streams to upscaled video"
 msgstr "正在将音频、字幕和其他流迁移到放大后的视频"
 
-#: upscaler.py:569
+#: upscaler.py:593
 msgid "Failed to migrate streams"
 msgstr "迁移流失败"
 
-#: upscaler.py:570
+#: upscaler.py:594
 msgid "Trying to output video without additional streams"
 msgstr "正在尝试输出不含其他流的视频"
 
-#: upscaler.py:586
+#: upscaler.py:610
 msgid "Output video file exists"
 msgstr "输出目标文件已存在"
 
-#: upscaler.py:590
+#: upscaler.py:614
 msgid "Created temporary directory to contain file"
 msgstr "为文件创建了临时目录"
 
-#: upscaler.py:593
+#: upscaler.py:617
 msgid "Writing intermediate file to: {}"
 msgstr "正在将中间视频文件写入至：{}"
 
@@ -321,6 +345,3 @@ msgstr "发生了异常"
 
 #~ msgid "You must specify both width and height"
 #~ msgstr "您必须同时指定宽度和高度"
-
-#~ msgid "Upscaling videos in directory: {}"
-#~ msgstr "放大该文件夹中的所有视频：{}"

src/upscaler.py

@@ -4,7 +4,7 @@
 Name: Video2X Upscaler
 Author: K4YT3X
 Date Created: December 10, 2018
-Last Modified: May 17, 2020
+Last Modified: May 22, 2020
 
 Description: This file contains the Upscaler class. Each
 instance of the Upscaler class is an upscaler on an image or
@@ -25,6 +25,7 @@ import copy
 import gettext
 import importlib
 import locale
+import mimetypes
 import pathlib
 import queue
 import re
@@ -49,7 +50,7 @@ language.install()
 _ = language.gettext
 
 # version information
-UPSCALER_VERSION = '4.1.0'
+UPSCALER_VERSION = '4.1.1'
 
 # these names are consistent for
 # - driver selection in command line
@@ -406,8 +407,14 @@ class Upscaler:
         # define processing queue
         self.processing_queue = queue.Queue()
 
+        Avalon.info(_('Loading files into processing queue'))
+
         # if input is a list of files
         if isinstance(self.input, list):
+
+            Avalon.info(_('Loading files from multiple paths'))
+            Avalon.debug_info(_('Input path(s): {}').format(self.input))
+
             # make output directory if it doesn't exist
             self.output.mkdir(parents=True, exist_ok=True)
 
@@ -424,12 +431,15 @@ class Upscaler:
 
         # if input specified is single file
         elif self.input.is_file():
-            Avalon.info(_('Upscaling single file: {}').format(self.input))
+            Avalon.info(_('Loading single file'))
+            Avalon.debug_info(_('Input path(s): {}').format(self.input))
             self.processing_queue.put((self.input.absolute(), self.output.absolute()))
 
         # if input specified is a directory
         elif self.input.is_dir():
 
+            Avalon.info(_('Loading files from directory'))
+            Avalon.debug_info(_('Input path(s): {}').format(self.input))
             # make output directory if it doesn't exist
             self.output.mkdir(parents=True, exist_ok=True)
             for input_path in [f for f in self.input.iterdir() if f.is_file()]:
@@ -442,6 +452,11 @@ class Upscaler:
         # record file count for external calls
         self.total_files = self.processing_queue.qsize()
 
+        Avalon.info(_('Loaded files into processing queue'))
+        # print all files in queue for debugging
+        for job in self.processing_queue.queue:
+            Avalon.debug_info(_('Input file: {}').format(job[0].absolute()))
+
         try:
             while not self.processing_queue.empty():
 
@@ -457,6 +472,13 @@ class Upscaler:
                 input_file_type = input_file_mime_type.split('/')[0]
                 input_file_subtype = input_file_mime_type.split('/')[1]
 
+                # in case python-magic fails to detect file type
+                # try guessing file mime type with mimetypes
+                if input_file_type not in ['image', 'video']:
+                    input_file_mime_type = mimetypes.guess_type(self.current_input_file.name)[0]
+                    input_file_type = input_file_mime_type.split('/')[0]
+                    input_file_subtype = input_file_mime_type.split('/')[1]
+
                 # start handling input
                 # if input file is a static image
                 if input_file_type == 'image' and input_file_subtype != 'gif':
@@ -530,7 +552,7 @@ class Upscaler:
                 # if file is none of: image, image/gif, video
                 # skip to the next task
                 else:
-                    Avalon.error(_('File {} ({}) neither an image of a video').format(self.current_input_file, input_file_mime_type))
+                    Avalon.error(_('File {} ({}) neither an image nor a video').format(self.current_input_file, input_file_mime_type))
                     Avalon.warning(_('Skipping this file'))
                     self.processing_queue.task_done()
                     self.total_processed += 1

src/video2x.pot

@@ -5,7 +5,7 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
-"POT-Creation-Date: 2020-05-17 10:10-0400\n"
+"POT-Creation-Date: 2020-05-22 17:51-0400\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -19,199 +19,223 @@ msgstr ""
 msgid "Upscaling Progress"
 msgstr ""
 
-#: upscaler.py:109
+#: upscaler.py:110
 msgid "Specified or default cache directory is a file/link"
 msgstr ""
 
-#: upscaler.py:115
+#: upscaler.py:116
 msgid "Creating cache directory {}"
 msgstr ""
 
-#: upscaler.py:118
+#: upscaler.py:119
 msgid "Unable to create {}"
 msgstr ""
 
-#: upscaler.py:123
+#: upscaler.py:124
 msgid "Extracted frames are being saved to: {}"
 msgstr ""
 
-#: upscaler.py:125
+#: upscaler.py:126
 msgid "Upscaled frames are being saved to: {}"
 msgstr ""
 
-#: upscaler.py:135
+#: upscaler.py:136
 msgid "Cleaning up cache directory: {}"
 msgstr ""
 
-#: upscaler.py:138
+#: upscaler.py:141
 msgid "Unable to delete: {}"
 msgstr ""
 
-#: upscaler.py:144 upscaler.py:159 upscaler.py:170
+#: upscaler.py:147 upscaler.py:162 upscaler.py:173
 msgid "Input and output path type mismatch"
 msgstr ""
 
-#: upscaler.py:145
+#: upscaler.py:148
 msgid "Input is multiple files but output is not directory"
 msgstr ""
 
-#: upscaler.py:149
+#: upscaler.py:152
 msgid "Input path {} is neither a file nor a directory"
 msgstr ""
 
-#: upscaler.py:153 upscaler.py:175
+#: upscaler.py:156 upscaler.py:178
 msgid "Input directory and output directory cannot be the same"
 msgstr ""
 
-#: upscaler.py:160
+#: upscaler.py:163
 msgid "Input is single file but output is directory"
 msgstr ""
 
-#: upscaler.py:163
+#: upscaler.py:166
 msgid "No suffix found in output file path"
 msgstr ""
 
-#: upscaler.py:164
+#: upscaler.py:167
 msgid "Suffix must be specified"
 msgstr ""
 
-#: upscaler.py:171
+#: upscaler.py:174
 msgid "Input is directory but output is existing single file"
 msgstr ""
 
-#: upscaler.py:180
+#: upscaler.py:183
 msgid "Input path is neither a file nor a directory"
 msgstr ""
 
-#: upscaler.py:189
+#: upscaler.py:192
 msgid "FFmpeg or FFprobe cannot be found under the specified path"
 msgstr ""
 
-#: upscaler.py:190 upscaler.py:200
+#: upscaler.py:193 upscaler.py:203
 msgid "Please check the configuration file settings"
 msgstr ""
 
-#: upscaler.py:199
+#: upscaler.py:202
 msgid "Specified driver executable directory doesn't exist"
 msgstr ""
 
-#: upscaler.py:226
+#: upscaler.py:229
 msgid "Failed to parse driver argument: {}"
 msgstr ""
 
-#: upscaler.py:258
+#: upscaler.py:261
 msgid "Unrecognized driver: {}"
 msgstr ""
 
-#: upscaler.py:298
+#: upscaler.py:301
 msgid "Starting progress monitor"
 msgstr ""
 
-#: upscaler.py:303
+#: upscaler.py:306
 msgid "Starting upscaled image cleaner"
 msgstr ""
 
-#: upscaler.py:312 upscaler.py:329
+#: upscaler.py:315 upscaler.py:332
 msgid "Killing progress monitor"
 msgstr ""
 
-#: upscaler.py:315 upscaler.py:332
+#: upscaler.py:318 upscaler.py:335
 msgid "Killing upscaled image cleaner"
 msgstr ""
 
-#: upscaler.py:336
+#: upscaler.py:339
 msgid "Terminating all processes"
 msgstr ""
 
-#: upscaler.py:343
+#: upscaler.py:346
 msgid "Main process waiting for subprocesses to exit"
 msgstr ""
 
-#: upscaler.py:362 upscaler.py:366
+#: upscaler.py:365 upscaler.py:369
 msgid "Subprocess {} exited with code {}"
 msgstr ""
 
-#: upscaler.py:372
+#: upscaler.py:375
 msgid "Stop signal received"
 msgstr ""
 
-#: upscaler.py:377
+#: upscaler.py:380
 msgid "Subprocess execution ran into an error"
 msgstr ""
 
-#: upscaler.py:425
-msgid "Upscaling single file: {}"
+#: upscaler.py:410
+msgid "Loading files into processing queue"
 msgstr ""
 
-#: upscaler.py:461
+#: upscaler.py:415
+msgid "Loading files from multiple paths"
+msgstr ""
+
+#: upscaler.py:416 upscaler.py:435 upscaler.py:442
+msgid "Input path(s): {}"
+msgstr ""
+
+#: upscaler.py:434
+msgid "Loading single file"
+msgstr ""
+
+#: upscaler.py:441
+msgid "Loading files from directory"
+msgstr ""
+
+#: upscaler.py:455
+msgid "Loaded files into processing queue"
+msgstr ""
+
+#: upscaler.py:458
+msgid "Input file: {}"
+msgstr ""
+
+#: upscaler.py:485
 msgid "Starting to upscale image"
 msgstr ""
 
-#: upscaler.py:464 upscaler.py:526
+#: upscaler.py:488 upscaler.py:550
 msgid "Upscaling completed"
 msgstr ""
 
-#: upscaler.py:478
+#: upscaler.py:502
 msgid "Reading video information"
 msgstr ""
 
-#: upscaler.py:492
+#: upscaler.py:516
 msgid "Aborting: No video stream found"
 msgstr ""
 
-#: upscaler.py:497
+#: upscaler.py:521
 msgid "Framerate: {}"
 msgstr ""
 
-#: upscaler.py:514
+#: upscaler.py:538
 msgid "Unsupported pixel format: {}"
 msgstr ""
 
-#: upscaler.py:524
+#: upscaler.py:548
 msgid "Starting to upscale extracted frames"
 msgstr ""
 
-#: upscaler.py:531
-msgid "File {} ({}) neither an image of a video"
+#: upscaler.py:555
+msgid "File {} ({}) neither an image nor a video"
 msgstr ""
 
-#: upscaler.py:532
+#: upscaler.py:556
 msgid "Skipping this file"
 msgstr ""
 
-#: upscaler.py:542
+#: upscaler.py:566
 msgid "Converting extracted frames into GIF image"
 msgstr ""
 
-#: upscaler.py:546 upscaler.py:555
+#: upscaler.py:570 upscaler.py:579
 msgid "Conversion completed"
 msgstr ""
 
-#: upscaler.py:551
+#: upscaler.py:575
 msgid "Converting extracted frames into video"
 msgstr ""
 
-#: upscaler.py:559
+#: upscaler.py:583
 msgid "Migrating audio, subtitles and other streams to upscaled video"
 msgstr ""
 
-#: upscaler.py:569
+#: upscaler.py:593
 msgid "Failed to migrate streams"
 msgstr ""
 
-#: upscaler.py:570
+#: upscaler.py:594
 msgid "Trying to output video without additional streams"
 msgstr ""
 
-#: upscaler.py:586
+#: upscaler.py:610
 msgid "Output video file exists"
 msgstr ""
 
-#: upscaler.py:590
+#: upscaler.py:614
 msgid "Created temporary directory to contain file"
 msgstr ""
 
-#: upscaler.py:593
+#: upscaler.py:617
 msgid "Writing intermediate file to: {}"
 msgstr ""
 

src/video2x.py

@@ -13,7 +13,7 @@ __      __  _       _                  ___   __   __
 Name: Video2X Controller
 Creator: K4YT3X
 Date Created: Feb 24, 2018
-Last Modified: May 15, 2020
+Last Modified: May 23, 2020
 
 Editor: BrianPetkovsek
 Last Modified: June 17, 2019
@@ -80,7 +80,7 @@ language.install()
 _ = language.gettext
 
 
-CLI_VERSION = '4.0.0'
+CLI_VERSION = '4.0.1'
 
 LEGAL_INFO = _('''Video2X CLI Version: {}
 Upscaler Version: {}
@@ -107,8 +107,15 @@ def parse_arguments():
     # video options
     video2x_options = parser.add_argument_group(_('Video2X Options'))
     video2x_options.add_argument('-h', '--help', action='help', help=_('show this help message and exit'))
-    video2x_options.add_argument('-i', '--input', type=pathlib.Path, help=_('source video file/directory'))
-    video2x_options.add_argument('-o', '--output', type=pathlib.Path, help=_('output video file/directory'))
+
+    # if help is in arguments list
+    # do not require input and output path to be specified
+    require_input_output = True
+    if '-h' in sys.argv or '--help' in sys.argv:
+        require_input_output = False
+    video2x_options.add_argument('-i', '--input', type=pathlib.Path, help=_('source video file/directory'), required=require_input_output)
+    video2x_options.add_argument('-o', '--output', type=pathlib.Path, help=_('output video file/directory'), required=require_input_output)
+
     video2x_options.add_argument('-c', '--config', type=pathlib.Path, help=_('video2x config file path'), action='store',
                                  default=pathlib.Path(__file__).parent.absolute() / 'video2x.yaml')
     video2x_options.add_argument('-v', '--version', help=_('display version, lawful information and exit'), action='store_true')

src/video2x.yaml

@@ -1,7 +1,7 @@
 # Name: Video2X Configuration File
 # Creator: K4YT3X
 # Date Created: October 23, 2018
-# Last Modified: May 17, 2020
+# Last Modified: May 23, 2020
 # Values here are the default values. Change the value here to
 #   save the default value permanently.
 # Items commented out are parameters irrelevant to this context
@@ -123,6 +123,7 @@ ffmpeg:
       '-crf': 17 # H.264 Constant Rate Factor
       '-b:v': null # target average bitrate
       '-vf': 'pad=ceil(iw/2)*2:ceil(ih/2)*2' # ensure output is divisible by 2, recommended for libx264
+      '-tune': 'animation' # encoding tuning film/animation/grain/stillimage/fastdecode/zerolatency/psnr/ssim
   # Step 3: Streams Migration
   # migrate audio and subtitle streams from original
   #   video into the upscaled video

src/video2x_gui.py

@@ -4,7 +4,7 @@
 Creator: Video2X GUI
 Author: K4YT3X
 Date Created: May 5, 2020
-Last Modified: May 17, 2020
+Last Modified: May 23, 2020
 """
 
 # local imports
@@ -15,6 +15,7 @@ from wrappers.ffmpeg import Ffmpeg
 # built-in imports
 import contextlib
 import json
+import mimetypes
 import os
 import pathlib
 import sys
@@ -25,12 +26,13 @@ import urllib
 import yaml
 
 # third-party imports
-from PyQt5 import QtGui, uic
+from PyQt5 import uic
 from PyQt5.QtCore import *
+from PyQt5.QtGui import *
 from PyQt5.QtWidgets import *
 import magic
 
-GUI_VERSION = '2.3.0'
+GUI_VERSION = '2.4.0'
 
 LEGAL_INFO = f'''Video2X GUI Version: {GUI_VERSION}\\
 Upscaler Version: {UPSCALER_VERSION}\\
@@ -131,6 +133,14 @@ class InputTableModel(QAbstractTableModel):
                     input_file_mime_type = magic.from_file(str(file_path.absolute()), mime=True)
                     input_file_type = input_file_mime_type.split('/')[0]
                     input_file_subtype = input_file_mime_type.split('/')[1]
+
+                    # in case python-magic fails to detect file type
+                    # try guessing file mime type with mimetypes
+                    if input_file_type not in ['image', 'video']:
+                        input_file_mime_type = mimetypes.guess_type(file_path.name)[0]
+                        input_file_type = input_file_mime_type.split('/')[0]
+                        input_file_subtype = input_file_mime_type.split('/')[1]
+
                     if input_file_type == 'image':
                         if input_file_subtype == 'gif':
                             return 'GIF'
@@ -182,11 +192,22 @@ class Video2XMainWindow(QMainWindow):
         # set window title and icon
         self.video2x_icon_path = str(resource_path('images/video2x.png'))
         self.setWindowTitle(f'Video2X GUI {GUI_VERSION}')
-        self.setWindowIcon(QtGui.QIcon(self.video2x_icon_path))
+        self.setWindowIcon(QIcon(self.video2x_icon_path))
+
+        # register shortcut keys
+        QShortcut(QKeySequence(Qt.CTRL + Qt.Key_W), self, self.close)
+        QShortcut(QKeySequence(Qt.CTRL + Qt.Key_Q), self, self.close)
+        QShortcut(QKeySequence(Qt.CTRL + Qt.Key_I), self, self.select_input_file)
+        QShortcut(QKeySequence(Qt.CTRL + Qt.Key_O), self, self.select_output_file)
+        QShortcut(QKeySequence(Qt.CTRL + Qt.SHIFT + Qt.Key_I), self, self.select_input_folder)
+        QShortcut(QKeySequence(Qt.CTRL + Qt.SHIFT + Qt.Key_O), self, self.select_output_folder)
 
         # menu bar
         self.action_exit = self.findChild(QAction, 'actionExit')
-        self.action_exit.triggered.connect(sys.exit)
+        self.action_exit.triggered.connect(self.close)
+
+        self.action_shortcuts = self.findChild(QAction, 'actionShortcuts')
+        self.action_shortcuts.triggered.connect(self.show_shortcuts)
 
         self.action_about = self.findChild(QAction, 'actionAbout')
         self.action_about.triggered.connect(self.show_about)
@@ -362,6 +383,7 @@ class Video2XMainWindow(QMainWindow):
         self.ffmpeg_assemble_video_output_options_video_codec_line_edit = self.findChild(QLineEdit, 'ffmpegAssembleVideoOutputOptionsVideoCodecLineEdit')
         self.ffmpeg_assemble_video_output_options_pixel_format_line_edit = self.findChild(QLineEdit, 'ffmpegAssembleVideoOutputOptionsPixelFormatLineEdit')
         self.ffmpeg_assemble_video_output_options_crf_spin_box = self.findChild(QSpinBox, 'ffmpegAssembleVideoOutputOptionsCrfSpinBox')
+        self.ffmpeg_assemble_video_output_options_tune_combo_box = self.findChild(QComboBox, 'ffmpegAssembleVideoOutputOptionsTuneComboBox')
         self.ffmpeg_assemble_video_output_options_bitrate_line_edit = self.findChild(QLineEdit, 'ffmpegAssembleVideoOutputOptionsBitrateLineEdit')
         self.ffmpeg_assemble_video_output_options_ensure_divisible_check_box = self.findChild(QCheckBox, 'ffmpegAssembleVideoOutputOptionsEnsureDivisibleCheckBox')
         self.ffmpeg_assemble_video_hardware_acceleration_check_box = self.findChild(QCheckBox, 'ffmpegAssembleVideoHardwareAccelerationCheckBox')
@@ -509,6 +531,7 @@ class Video2XMainWindow(QMainWindow):
         self.ffmpeg_assemble_video_output_options_video_codec_line_edit.setText(settings['output_options']['-vcodec'])
         self.ffmpeg_assemble_video_output_options_pixel_format_line_edit.setText(settings['output_options']['-pix_fmt'])
         self.ffmpeg_assemble_video_output_options_crf_spin_box.setValue(settings['output_options']['-crf'])
+        self.ffmpeg_assemble_video_output_options_tune_combo_box.setCurrentText(settings['output_options']['-tune'])
         self.ffmpeg_assemble_video_output_options_bitrate_line_edit.setText(settings['output_options']['-b:v'])
 
         # migrate streams
@@ -608,6 +631,7 @@ class Video2XMainWindow(QMainWindow):
         self.config['ffmpeg']['assemble_video']['output_options']['-vcodec'] = self.ffmpeg_assemble_video_output_options_video_codec_line_edit.text()
         self.config['ffmpeg']['assemble_video']['output_options']['-pix_fmt'] = self.ffmpeg_assemble_video_output_options_pixel_format_line_edit.text()
         self.config['ffmpeg']['assemble_video']['output_options']['-crf'] = self.ffmpeg_assemble_video_output_options_crf_spin_box.value()
+        self.config['ffmpeg']['assemble_video']['output_options']['-tune'] = self.ffmpeg_assemble_video_output_options_tune_combo_box.currentText()
         if self.ffmpeg_assemble_video_output_options_bitrate_line_edit.text() != '':
             self.config['ffmpeg']['assemble_video']['output_options']['-b:v'] = self.ffmpeg_assemble_video_output_options_bitrate_line_edit.text()
         else:
@@ -838,6 +862,13 @@ class Video2XMainWindow(QMainWindow):
                 input_file_type = input_file_mime_type.split('/')[0]
                 input_file_subtype = input_file_mime_type.split('/')[1]
 
+                # in case python-magic fails to detect file type
+                # try guessing file mime type with mimetypes
+                if input_file_type not in ['image', 'video']:
+                    input_file_mime_type = mimetypes.guess_type(input_path.name)[0]
+                    input_file_type = input_file_mime_type.split('/')[0]
+                    input_file_subtype = input_file_mime_type.split('/')[1]
+
                 # if input file is an image
                 if input_file_type == 'image':
 
@@ -917,10 +948,23 @@ class Video2XMainWindow(QMainWindow):
             return
         driver_line_edit.setText(str(driver_binary_path.absolute()))
 
-    def show_about(self, message: str):
+    def show_shortcuts(self):
+        message_box = QMessageBox(self)
+        message_box.setWindowTitle('Video2X Shortcuts')
+        message_box.setTextFormat(Qt.MarkdownText)
+        shortcut_information = '''**Ctrl+W**:\tExit application\\
+**Ctrl+Q**:\tExit application\\
+**Ctrl+I**:\tOpen select input file dialog\\
+**Ctrl+O**:\tOpen select output file dialog\\
+**Ctrl+Shift+I**:\tOpen select input folder dialog\\
+**Ctrl+Shift+O**:\tOpen select output folder dialog'''
+        message_box.setText(shortcut_information)
+        message_box.exec_()
+
+    def show_about(self):
         message_box = QMessageBox(self)
         message_box.setWindowTitle('About Video2X')
-        message_box.setIconPixmap(QtGui.QPixmap(self.video2x_icon_path).scaled(64, 64))
+        message_box.setIconPixmap(QPixmap(self.video2x_icon_path).scaled(64, 64))
         message_box.setTextFormat(Qt.MarkdownText)
         message_box.setText(LEGAL_INFO)
         message_box.exec_()
@@ -947,7 +991,7 @@ class Video2XMainWindow(QMainWindow):
         message_box.setTextFormat(Qt.MarkdownText)
 
         error_message = '''Upscaler ran into an error:\\
-**{}**\\
+{}\\
 Check the console output for details.\\
 When reporting an error, please include console output.\\
 You can [submit an issue on GitHub](https://github.com/k4yt3x/video2x/issues/new?assignees=K4YT3X&labels=bug&template=bug-report.md&title={}) to report this error.'''
@@ -1008,7 +1052,7 @@ You can [submit an issue on GitHub](https://github.com/k4yt3x/video2x/issues/new
 
         # if show frame is checked, show preview image
         if self.frame_preview_show_preview_check_box.isChecked() and last_frame_upscaled.is_file():
-            last_frame_pixmap = QtGui.QPixmap(str(last_frame_upscaled.absolute()))
+            last_frame_pixmap = QPixmap(str(last_frame_upscaled.absolute()))
             # the -2 here behind geometry subtracts frame size from width and height
             self.frame_preview_label.setPixmap(last_frame_pixmap.scaled(self.frame_preview_label.width() - 2,
                                                                         self.frame_preview_label.height() - 2,
@@ -1152,7 +1196,7 @@ You can [submit an issue on GitHub](https://github.com/k4yt3x/video2x/issues/new
         except AttributeError:
             return True
 
-    def closeEvent(self, event: QtGui.QCloseEvent):
+    def closeEvent(self, event: QCloseEvent):
         # try cleaning up temp directories
         if self.stop():
             event.accept()

src/video2x_gui.pyproject.user

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE QtCreatorProject>
-<!-- Written by QtCreator 4.12.0, 2020-05-17T16:15:14. -->
+<!-- Written by QtCreator 4.12.0, 2020-05-23T08:51:47. -->
 <qtcreator>
  <data>
   <variable>EnvironmentId</variable>

src/video2x_gui.ui

@@ -1707,7 +1707,7 @@
         <item>
          <widget class="QTabWidget" name="ffmpegSettingsTabWidget">
           <property name="currentIndex">
-           <number>0</number>
+           <number>2</number>
           </property>
           <widget class="QWidget" name="ffmpegGlobalOptionsTab">
            <attribute name="title">
@@ -1929,7 +1929,7 @@
                     </sizepolicy>
                    </property>
                    <property name="text">
-                    <string>yuv444p10le</string>
+                    <string>yuv420p</string>
                    </property>
                   </widget>
                  </item>
@@ -1956,6 +1956,64 @@
                  </item>
                 </layout>
                </item>
+               <item>
+                <layout class="QHBoxLayout" name="ffmpegAssembleVideoOutputOptionsTuneHorizontalLayout">
+                 <item>
+                  <widget class="QLabel" name="ffmpegAssembleVideoOutputOptionsTuneLabel">
+                   <property name="text">
+                    <string>H.264/H.265 Tune (-tune)</string>
+                   </property>
+                  </widget>
+                 </item>
+                 <item>
+                  <widget class="QComboBox" name="ffmpegAssembleVideoOutputOptionsTuneComboBox">
+                   <property name="toolTip">
+                    <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;- film (x264 only): use for high quality movie content; lowers deblocking&lt;/p&gt;&lt;p&gt;- animation (x264 only): good for cartoons; uses higher deblocking and more reference frames&lt;/p&gt;&lt;p&gt;- grain: preserves the grain structure in old, grainy film material&lt;/p&gt;&lt;p&gt;- stillimage: (x264 only) good for slideshow-like content&lt;/p&gt;&lt;p&gt;- fastdecode: allows faster decoding by disabling certain filters&lt;/p&gt;&lt;p&gt;- zerolatency: good for fast encoding and low-latency streaming&lt;/p&gt;&lt;p&gt;- psnr: ignore this as it is only used for codec development&lt;/p&gt;&lt;p&gt;- ssim: ignore this as it is only used for codec development &lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+                   </property>
+                   <item>
+                    <property name="text">
+                     <string>animation</string>
+                    </property>
+                   </item>
+                   <item>
+                    <property name="text">
+                     <string>film</string>
+                    </property>
+                   </item>
+                   <item>
+                    <property name="text">
+                     <string>grain</string>
+                    </property>
+                   </item>
+                   <item>
+                    <property name="text">
+                     <string>stillimage</string>
+                    </property>
+                   </item>
+                   <item>
+                    <property name="text">
+                     <string>fastdecode</string>
+                    </property>
+                   </item>
+                   <item>
+                    <property name="text">
+                     <string>zerolatency</string>
+                    </property>
+                   </item>
+                   <item>
+                    <property name="text">
+                     <string>psnr</string>
+                    </property>
+                   </item>
+                   <item>
+                    <property name="text">
+                     <string>ssim</string>
+                    </property>
+                   </item>
+                  </widget>
+                 </item>
+                </layout>
+               </item>
                <item>
                 <layout class="QHBoxLayout" name="ffmpegAssembleVideoOutputOptionsBitrateHorizontalLayout">
                  <item>
@@ -2596,6 +2654,7 @@
     <property name="title">
      <string>Help</string>
     </property>
+    <addaction name="actionShortcuts"/>
     <addaction name="actionAbout"/>
    </widget>
    <addaction name="menuFile"/>
@@ -2612,6 +2671,11 @@
     <string>About</string>
    </property>
   </action>
+  <action name="actionShortcuts">
+   <property name="text">
+    <string>Shortcuts</string>
+   </property>
+  </action>
  </widget>
  <resources/>
  <connections/>