需求背景
尽管现在用手机看片更方便，但无奈下片还是用的电脑，而且手机也不可能存个几百个G的片吧，所以有好几次都试图找一个简单的用手机看电脑上的视频的方法，试过共享文件夹，ES浏览器，windows自带的mediaplayer之类的方案。虽然最后勉强能看片了，但是一方面，我觉得设置起来很麻烦，另一方面，这些方案都不支持外接的ASS/SSA/SRT字幕播放。
因此，在无字幕强行啃生肉多次之后。。我终于决定自己实现一个能带字幕播放媒体文件的文件浏览器。
最终实现
一个本机运行的文件服务器(由python脚本打包而成的EXE可执行程序) + 通过手机浏览器查看。
支持自动加载视频文件同名SRT/SSA/ASS字幕。
支持扫二维码快速访问。
优势
简单(双击打开就能运行，不用任何设置) 自动加载字幕
另外这个文件浏览器也顺便让不同设备传文件变的简单了，以前我还得开个微信文件传输助手传来传去，速度慢还有100M的大小限制
实现流程
首先确定网络服务器框架代码，这里我使用python的flask框架。如果是视频文件，跳转播放页；如果是文件夹，则显示文件列表；如果是普通文件，则直接提供下载。
然后是字幕转换问题，由于原生的html字幕只支持vtt格式，所以我需要把ASS、SRT字幕都转成vtt格式，试验了一些三方依赖之后我选择了 webvtt和asstosrt 这两个库。后者支持ASS和SSA字幕转SRT。
最后，给出源代码及封装好的EXE文件地址：源码及EXE下载地址（github）
附python源码,写的很丑陋，仅供参考。如果有python环境的可以安装相关依赖后从脚本运行。
# -*- coding: utf-8 -*-
from flask import Flask, send_from_directory, send_file
from gevent import monkey
from gevent.pywsgi import WSGIServer
import os
import urllib
import sys
import html
import os
import webvtt
import asstosrt
import chardet
from tkinter import *
from tkinter import filedialog
import locale
import time
monkey.patch_all()
from flask_cors import *
app = Flask(__name__)
CORS(app, supports_credentials=True)
WORK_DIRECTORY = '/'
SEP = '/'
lang = locale.getdefaultlocale()[0]
IS_ZH = 'CN' in lang
BACK = "返回首页" if IS_ZH else 'back to index'
NAME = '仔仔文件传输助手' if IS_ZH else "ZZ file explorer"
@app.route('/')
def hello_world():
return get_list_page(WORK_DIRECTORY)
@app.route("/static/<path:path>", methods=["GET"])
def static_dir(path):
return send_from_directory('./static/', path)
@app.route("/file/<path:path>", methods=["GET"])
def get_file(path):
print('getfile', path)
suffix = path.split(".")
suffix = suffix[-1] if suffix else ""
path = urllib.parse.unquote(path)
path = path.replace("@@", SEP)
print(path)
if path.endswith(SEP): # 判断是否是文件夹
return get_list_page(path)
elif suffix not in ["exe", "bat"]:
path = path.replace("@@", SEP)
return send_file(path, conditional=True)
@app.route("/play/<path:path>", methods=["GET"])
def get_video_player(path):
# show the user profile for that user
print(path)
r = []
try:
displaypath = urllib.parse.unquote(path,
errors='surrogatepass')
except UnicodeDecodeError:
displaypath = urllib.parse.unquote(path)
displaypath = html.escape(displaypath, quote=False)
enc = sys.getfilesystemencoding()
title = 'Player for %s' % displaypath
r.append('<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" '
'"http://www.w3.org/TR/html4/strict.dtd">')
r.append('<html>\n<head>')
r.append('<meta http-equiv="Content-Type" '
'content="text/html; charset=%s">' % enc)
r.append('<title>%s</title>\n</head>' % title)
# r.append('<script src="/static/player.js"></script>'
# # '<script src="/static/videosub-0.9.9.js"></script>'
# )
r.append('<body>\n<h1>%s</h1>' % title)
r.append('<li><a href="%s">%s</a></li>'
% ('/',
html.escape(BACK, quote=False)))
r.append(
'\n<p align="center"><video id="mainPlayer" controls="controls" width="640" height="480">')
caption_path = getCaption(path.replace('@@', SEP)).replace(SEP, '@@')
r.append('''
<source src="/file/%s" type="video/mp4">
<track id="video-caption" src="/file/%s"
kind="captions" srclang="zh" label="Chinese" default/>
''' % (path, caption_path))
r.append('</video></p>\n\n')
r.append('</body>\n</html>\n')
return '\n'.join(r)
def get_list_page(path):
"""Helper to produce a directory listing (absent index.html).
Return value is either a file object, or None (indicating an
error). In either case, the headers are sent, making the
interface the same as for send_head().
"""
try:
list = os.listdir(path)
except OSError as e:
print(e)
return None
list.sort(key=lambda a: a.lower())
r = []
displaypath = html.escape(path, quote=False)
enc = sys.getfilesystemencoding()
title = NAME + ' Directory listing for %s' % displaypath
r.append('<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" '
'"http://www.w3.org/TR/html4/strict.dtd">')
r.append('<html>\n<head>')
r.append('<meta http-equiv="Content-Type" '
'content="text/html; charset=%s">' % enc)
r.append('<title>%s</title>\n</head>' % title)
r.append('<body>\n<h1>%s</h1>' % title)
r.append('<hr>\n<ul>')
if path != WORK_DIRECTORY: # 'a/b/c/' -> 'a/b/'
r.append('<li><a href="%s">%s</a></li>'
% ('/',
html.escape(BACK, quote=False)))
for name in list:
fullname = os.path.join(path, name)
displayname = linkname = name
# print(name, fullname)
# Append / for directories
if os.path.isdir(fullname):
fullname = fullname + "/"
displayname = name + "/"
linkname = name + "/"
suffix = linkname.split('.')[-1]
if suffix in ['mp4', 'avi', 'mkv']:
r.append('<li><a href="%s">%s</a></li>'
% ('/play/' + urllib.parse.quote(fullname.replace(SEP, "@@")),
html.escape(displayname, quote=False)))
else:
r.append('<li><a href="%s">%s</a></li>'
% ('/file/' + urllib.parse.quote(fullname.replace(SEP, "@@")),
html.escape(displayname, quote=False)))
r.append('</ul>\n<hr>\n</body>\n</html>\n')
return '\n'.join(r)
def getCaption(videoPath):
# 根据video名称寻找字幕
print('get caption',videoPath)
vtt_exist, srt_exist, ass_exist,ssa_exist = False, False, False,False
dir_path = os.path.dirname(videoPath)
videoPath = videoPath.split('/')[-1]
videoName = videoPath.split('.')[0]
print(videoName)
vtt_name = videoName + '.vtt'
srt_name = videoName + '.srt'
ass_name = videoName + '.ass'
ssa_name = videoName + '.ssa'
file_list = os.listdir(dir_path)
for file_name in file_list:
# print(file_name)
if file_name == vtt_name:
vtt_exist = True
elif file_name == srt_name:
srt_exist = True
elif file_name == ass_name:
ass_exist = True
elif file_name == ssa_name:
ssa_exist = True
if vtt_exist:
return os.path.join(dir_path, vtt_name)
elif srt_exist:
return srt2vtt(srt_name, dir_path)
elif ass_exist:
return ass2vtt(videoName, dir_path,ass_name)
elif ssa_exist:
return ass2vtt(videoName, dir_path,ssa_name)
else:
return ''
def srt2vtt(srt_name, dir_path):
print('srt2vtt',srt_name)
srt_path = os.path.join(dir_path, srt_name)
with open(file=srt_path, mode='rb') as f3: # 以二进制模式读取文件
data = f3.read() # 获取文件内容
# print(data)
f3.close() # 关闭文件
origin_charset = chardet.detect(data)['encoding'] # 检测文件内容
print(origin_charset)
convert_webvtt = webvtt.from_srt(srt_path)
convert_webvtt.save()
return convert_webvtt.file
def removeIfExists(file_path):
if (os.path.exists(file_path)):
os.remove(file_path)
def ass2vtt(video_name, dir_path,ass_name):
# 编码转换 然后用pysub
ass_path = os.path.join(dir_path, ass_name)
print(ass_path)
with open(file=ass_path, mode='rb') as f3: # 以二进制模式读取文件
data = f3.read() # 获取文件内容
# print(data)
f3.close() # 关闭文件
origin_charset = chardet.detect(data)['encoding'] # 检测文件内容
print(origin_charset)
tmp_path = ass_path
tmp_ass_path = os.path.join(dir_path, 'tmp.ass')
if origin_charset != 'utf8':
tmp_path = tmp_ass_path
with open(tmp_path, 'wb') as tmp_file:
data = data.decode(origin_charset).encode('utf8')
tmp_file.write(data)
with open(tmp_path,encoding='utf8') as f:
srt_str = asstosrt.convert(f)
print(srt_str)
removeIfExists(tmp_ass_path)
tmp_srt_path = os.path.join(dir_path, video_name + '.srt')
with open(tmp_srt_path, 'w',newline="",encoding="utf8") as f:
f.write(srt_str)
return srt2vtt(tmp_srt_path, dir_path)
def get_ip():
import socket
ip = '本机ip'
try:
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s.connect(('8.8.8.8', 80))
ip = s.getsockname()[0]
finally:
s.close()
print(ip)
return ip
def show_qcode(url):
import qrcode
qr = qrcode.QRCode(version=2, error_correction=qrcode.constants.ERROR_CORRECT_L, box_size=10, border=10, )
qr.add_data(url)
qr.make(fit=True)
img = qr.make_image()
img.show()
if __name__ == '__main__':
# 或者app.debug = True #代码修改了就自动运行
# app.run(host='0.0.0.0',port=30006,debug=True)
try:
if IS_ZH:
print("请在弹出框里选择需要共享的目录")
else:
print('please select directory to share')
window = Tk()
window.withdraw() # 主窗口隐藏
WORK_DIRECTORY = filedialog.askdirectory(parent=window, initialdir="/",
title='choose the share directory')
if not WORK_DIRECTORY:
print('cancel')
sys.exit(1)
url = "http://%s:30007" % get_ip()
print("共享目录 " if IS_ZH else 'share directory: ', WORK_DIRECTORY)
print("服务器启动" if IS_ZH else 'server started ')
print(
'用手机或电脑浏览器访问 %s (或扫描生成的二维码)即可访问共享目录内容' % url if IS_ZH else
'open link %s with browser on PC/mobile (or just scan the QR code),to xisit your content' % url)
show_qcode(url)
WSGIServer(('0.0.0.0', 30007), app).serve_forever()
except Exception as e:
print(e)
time.sleep(10)
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