@app.route('/video_feed/<feed_type>') def video_feed(feed_type): """Video streaming route. Put this in the src attribute of an img tag.""" if feed_type == 'Camera_0': return Response(detect_gen(dataset=dataset, feed_type=feed_type), mimetype='multipart/x-mixed-replace; boundary=frame') elif feed_type == 'Camera_1': return Response(detect_gen(dataset=dataset, feed_type=feed_type), mimetype='multipart/x-mixed-replace; boundary=frame')
时间: 2024-01-26 17:02:07 浏览: 33
这是一个使用 Flask 框架的 Python 网页应用程序,其中定义了一个视频流路由,即当用户请求访问 /video_feed/<feed_type> 路径时,会执行 video_feed 函数。
video_feed 函数接受一个参数 feed_type,根据不同的 feed_type 返回不同的视频流。如果 feed_type 为 Camera_0 或 Camera_1,那么就会调用 detect_gen 函数,该函数返回一帧视频流,用 multipart/x-mixed-replace 类型的响应对象进行返回,使得浏览器能够实时更新视频流。
相关问题
set user_write_ugi:afs://kunpeng.afs.baidu.com:9902=lbs-huiyan,lbs-huiyan; insert overwrite directory 'afs://kunpeng.afs.baidu.com:9902/user/lbs-huiyan/warehouse/huiyan.db/map_huiyan_mall_userpic/event_type=monthly/event_day={FORWARD_MONTH_END}' using CSV options('compression'='GZIP', sep='\t', escapeQuotes=false) SELECT source.mall_id AS mall_id, COUNT(1) AS total FROM (SELECT cuid, mall_id, mall_name, date_type FROM huiyan_ns.huiyan.map_huiyan_mall_basic_source WHERE event_day = '{FORWARD_MONTH_END}') source JOIN (SELECT cuid, * FROM huiyan_ns.huiyan.map_huiyan_parse_userpic WHERE event_day >= '{FORWARD_7_DAY}' AND event_day <= '{FORWARD_MONTH_END}') userpic ON userpic.cuid = source.cuid GROUP BY source.mall_id, source.mall_name, source.date_type; alter table huiyan_ns.huiyan.map_huiyan_mall_userpic_raw add partition(event_day='{FORWARD_MONTH_END}') location 'afs://kunpeng.afs.baidu.com:9902/user/lbs-huiyan/warehouse/huiyan.db/map_huiyan_mall_flow_userpic_raw/event_day={FORWARD_MONTH_END}'; set user_write_ugi:afs://kunpeng.afs.baidu.com:9902=lbs-huiyan,lbs-huiyan; insert overwrite directory 'afs://kunpeng.afs.baidu.com:9902/user/lbs-huiyan/warehouse/huiyan.db/map_huiyan_mall_userpic/event_type=monthly/event_day={FORWARD_MONTH_END}' using CSV options('compression'='GZIP', sep='\t', escapeQuotes=false) SELECT TRANSFORM(mall_id, ) USING 'python3 mall_userpic_streaming.py' AS(mall_id, ) FROM huiyan_ns.huiyan.map_huiyan_mall_userpic_raw WHERE event_day = '{FORWARD_MONTH_END}' ; alter table huiyan_ns.huiyan.map_huiyan_mall_userpic add partition(event_type='monthly', event_day='{FORWARD_MONTH_END}') location 'afs://kunpeng.afs.baidu.com:9902/user/lbs-huiyan/warehouse/huiyan.db/map_huiyan_mall_userpic/event_type=monthly/event_day=${FORWARD_MONTH_END}'; 将这两段代码合并为一段
你可以将这两段代码合并为以下形式:
```sql
set user_write_ugi:afs://kunpeng.afs.baidu.com:9902=lbs-huiyan,lbs-huiyan;
insert overwrite directory 'afs://kunpeng.afs.baidu.com:9902/user/lbs-huiyan/warehouse/huiyan.db/map_huiyan_mall_userpic/event_type=monthly/event_day={FORWARD_MONTH_END}' using CSV options('compression'='GZIP', sep='\t', escapeQuotes=false)
SELECT
source.mall_id AS mall_id,
COUNT(1) AS total
FROM
(SELECT cuid, mall_id, mall_name, date_type
FROM huiyan_ns.huiyan.map_huiyan_mall_basic_source
WHERE event_day = '{FORWARD_MONTH_END}') source
JOIN
(SELECT cuid, *
FROM huiyan_ns.huiyan.map_huiyan_parse_userpic
WHERE event_day >= '{FORWARD_7_DAY}' AND event_day <= '{FORWARD_MONTH_END}') userpic
ON userpic.cuid = source.cuid
GROUP BY source.mall_id, source.mall_name, source.date_type;
alter table huiyan_ns.huiyan.map_huiyan_mall_userpic_raw add partition(event_day='{FORWARD_MONTH_END}') location 'afs://kunpeng.afs.baidu.com:9902/user/lbs-huiyan/warehouse/huiyan.db/map_huiyan_mall_flow_userpic_raw/event_day={FORWARD_MONTH_END}';
set user_write_ugi:afs://kunpeng.afs.baidu.com:9902=lbs-huiyan,lbs-huiyan;
insert overwrite directory 'afs://kunpeng.afs.baidu.com:9902/user/lbs-huiyan/warehouse/huiyan.db/map_huiyan_mall_userpic/event_type=monthly/event_day={FORWARD_MONTH_END}' using CSV options('compression'='GZIP', sep='\t', escapeQuotes=false)
SELECT
TRANSFORM(mall_id)
USING 'python3 mall_userpic_streaming.py'
AS (mall_id)
FROM huiyan_ns.huiyan.map_huiyan_mall_userpic_raw
WHERE event_day = '{FORWARD_MONTH_END}';
alter table huiyan_ns.huiyan.map_huiyan_mall_userpic add partition(event_type='monthly', event_day='{FORWARD_MONTH_END}') location 'afs://kunpeng.afs.baidu.com:9902/user/lbs-huiyan/warehouse/huiyan.db/map_huiyan_mall_userpic/event_type=monthly/event_day=${FORWARD_MONTH_END}';
```
请注意,这是将两段代码合并为一段,但我无法保证这段代码的逻辑和语法是否正确。请在使用之前进行适当的检查和测试。
用cplusplus代码验证以下rtsp地址的合法性 rtsp://admin:gyz123456@192.168.25.26:554/Streaming/Unicast/channels/401 rtsp://admin:hy123456@10.6.1.106/ rtsp://127.0.0.1:8554/1122.264
以下是一个使用C++的函数,可以验证RTSP地址的合法性。该函数使用正则表达式来检查URL的格式是否符合RTSP协议的规范。请注意,该函数使用C++11标准,因此您的编译器必须支持C++11。
```cpp
#include <regex>
#include <string>
bool isValidRTSPUrl(const std::string& url) {
const std::regex rtspUrlRegex(
"^(rtsp://)?" // optional "rtsp://" scheme
"([A-Za-z0-9]+:)?([A-Za-z0-9]+)?" // optional username and password
"@?" // optional "@" symbol
"([A-Za-z0-9]+\\.)+[A-Za-z]{2,}" // domain name or IP address
"(:[0-9]{1,5})?" // optional port number
"(/[A-Za-z0-9_.\\-~%]*)*" // optional path and query
"$");
return std::regex_match(url, rtspUrlRegex);
}
```
使用此函数,您可以轻松地验证RTSP URL的合法性。例如,以下是一些使用此函数的示例代码:
```cpp
#include <iostream>
int main() {
std::string url1 = "rtsp://admin:gyz123456@192.168.25.26:554/Streaming/Unicast/channels/401";
std::string url2 = "rtsp://admin:hy123456@10.6.1.106/";
std::string url3 = "rtsp://127.0.0.1:8554/1122.264";
if (isValidRTSPUrl(url1)) {
std::cout << "URL 1 is valid." << std::endl;
} else {
std::cout << "URL 1 is not valid." << std::endl;
}
if (isValidRTSPUrl(url2)) {
std::cout << "URL 2 is valid." << std::endl;
} else {
std::cout << "URL 2 is not valid." << std::endl;
}
if (isValidRTSPUrl(url3)) {
std::cout << "URL 3 is valid." << std::endl;
} else {
std::cout << "URL 3 is not valid." << std::endl;
}
return 0;
}
```
输出:
```
URL 1 is valid.
URL 2 is valid.
URL 3 is valid.
```
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