| from nvidia.dali.pipeline import Pipeline | |
| import nvidia.dali.ops as ops | |
| import nvidia.dali.types as types | |
| from torch import Tensor | |
| from fastai import datasets | |
| im_size = 128 | |
| bs = 64 | |
| path = datasets.untar_data('https://s3.amazonaws.com/fast-ai-imageclas/imagenette') | |
| imagenette_means = Tensor([0.4879, 0.4740, 0.4307]) |
| """ | |
| Streaming FFmpeg to HTTP, via Python's Flask. | |
| This is an incredibly simple example, which will yield issues due to inconsistant input and output rates. | |
| If you're going to use this, VLC works okay as a client. | |
| You really need to move FFmpeg into a separate thread, which should help stream audio more consistantly to the HTTP client. | |
| Example by Anthony Eden (https://mediarealm.com.au) | |
| """ | |
| from flask import Flask |
#Capture and stream a webcam To capture using the iSight camera on a Mac, or infact any other webcam connected to the Mac, we can use FFmpeg. First get a list of the devices installed.
ffmpeg -f avfoundation -list_devices true -i ""
This will list the aviable video and audio devices.
The below will capture at 30fps and the set video size to a file.
ffmpeg -f avfoundation -framerate 30 -video_size 640x480 -i "0:none" out.avi
There are a mess of troubles in sending and receiving files from my macbook to dev server, since I had no permission to excute command scp on dev server. Here is a lightweight, quick, and convenience tools which related with ssh, called lrzsz. lrzsz is a unix communication package providing the XMODEM, YMODEM, ZMODEM file transefer protocol which usually has been already installed in most of servers.
| ################################# | |
| # | |
| # 本清单基于 ubuntu 12.04， | |
| # | |
| # 只是一个清单，不是一个可以安全执行的脚本 | |
| # | |
| ################################# | |
| # create a linode,login as root, and create a common user for all the tasks | |
| ssh root@the_ip_of_this_linode |
| =Navigating= | |
| visit('/projects') | |
| visit(post_comments_path(post)) | |
| =Clicking links and buttons= | |
| click_link('id-of-link') | |
| click_link('Link Text') | |
| click_button('Save') | |
| click('Link Text') # Click either a link or a button | |
| click('Button Value') |