Django 视频播放
Candyeel 人气:0view视图
import re
import os
import mimetypes
from wsgiref.util import FileWrapper
from django.http import StreamingHttpResponse
from django.shortcuts import render
from django.conf import settings
def file_iterator(file_name, chunk_size=8192, offset=0, length=None):
# 每次最多读取8Kb
with open(file_name, "rb") as f:
f.seek(offset, os.SEEK_SET)
remaining = length # 还有多少未读取
while True:
bytes_length = chunk_size if remaining is None else min(remaining, chunk_size)
data = f.read(bytes_length)
if not data: # 没有数据了 退出
break
if remaining:
remaining -= len(data)
yield data
def stream_video(request):
"""将视频文件以流媒体的方式响应"""
range_header = request.META.get('HTTP_RANGE', '').strip()
range_re = re.compile(r'bytes\s*=\s*(?P<START>\d+)\s*-\s*(?P<END>\d*)', re.I)
range_match = range_re.match(range_header)
path = request.GET.get('path')
#这里根据实际情况改变，我的views.py在core文件夹下但是folder_path却只到core的上一层，media也在core文件夹下
video_path = os.path.join(settings.BASE_DIR, 'static', 'video') # 视频放在目录的static下的video文件夹中
file_path = os.path.join(video_path, path) #path就是template ?path=后面的参数的值
size = os.path.getsize(file_path) # 文件总大小
content_type, encoding = mimetypes.guess_type(file_path)
content_type = content_type or 'application/octet-stream'
if range_match:
# first_byte播放到的位置
# 下次播放的位置
first_byte, last_byte = range_match.group('START'), range_match.group('END')
first_byte = int(first_byte) if first_byte else 0
# 从播放的位置往后读取10M的数据
last_byte = first_byte + 1024 * 1024 * 10
if last_byte >= size: # 如果想读取的位置大于文件大小
last_byte = size - 1 # 最后将图片全部读完
length = last_byte - first_byte + 1 # 此次读取的长度（字节）
resp = StreamingHttpResponse(file_iterator(file_path, offset=first_byte, length=length), status=200, content_type=content_type)
resp['Content-Length'] = str(length)
resp['Content-Range'] = 'bytes %s-%s/%s' % (first_byte, last_byte, size)
else:
resp = StreamingHttpResponse(FileWrapper(open(file_path, 'rb')), content_type=content_type)
resp['Content-Length'] = str(size)
resp['Accept-Ranges'] = 'bytes'
return resp
前端
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<script src="https://cdn.bootcdn.net/ajax/libs/jquery/3.6.0/jquery.js"></script>
</head>
<body>
<video id="media" src="" width="720" height="480" controls autoplay>浏览器不支持video标签 </video>
</video>
</body>
<script>
$(function () {
$("#media").attr('src', '/test_resp/?path=/media/video.mp4');
})
</script>
</html>加载全部内容