| ### Problem | |
| On Archlinux | |
| `journalctl -p 3 -xb` | |
| shows | |
| `intel_rapl: no valid rapl domains found in package 0` | |
| ### Slove |
| # https://trac.ffmpeg.org/wiki/Capture/Desktop | |
| # https://ffmpeg.org/ffmpeg-devices.html#gdigrab | |
| # https://trac.ffmpeg.org/wiki/Encode/H.264#LosslessH.264 | |
| # WARNING: THE RECORDING WILL STOP WHEN UAC POPUP IS SHOWN | |
| C:\SoftPortable\ffmpeg\bin\ffmpeg ` | |
| -f gdigrab -framerate 30 -draw_mouse 1 -i desktop ` | |
| -c:v libx264 -qp 0 -pix_fmt yuv444p -preset ultrafast ` | |
| "C:\Videos\recording-$(get-date -f yyyy-MM-dd-Hmss).mp4" |
| public class RC4 { | |
| public static byte[] Encrypt(byte[] pwd, byte[] data) { | |
| int a, i, j, k, tmp; | |
| int[] key, box; | |
| byte[] cipher; | |
| key = new int[256]; | |
| box = new int[256]; | |
| cipher = new byte[data.Length]; |
| #!/bin/bash | |
| set -e | |
| # trap keyboard interrupt (control-c) | |
| trap control_c INT | |
| # Must be run as root | |
| # requires: | |
| # - wget | |
| # - pax |
You can use ffmpeg to directly pull frames off of a dahua 4300s at full resolution. May be a good alternative to pricey dvrs which likely cannot record at full resolution, may not work with the camera, or are prohibitevly expensive
Simple stream to file. Full resolution
ffmpeg -loglevel debug -rtsp_transport tcp -i "rtsp://admin:[email protected]:554/live" \
-c copy -map 0 foo.mp4
This is a collection of working commandline examples to show how one could use FFMpeg and VLC for live transcoding of video streams. All examples have been tested on OSX 10.7.5 with FFMPeg 1.1.3 and VLC 2.0.5 in early 2013.
Documentation links
| /* | |
| * A JavaScript implementation of the RSA Data Security, Inc. MD5 Message | |
| * Digest Algorithm, as defined in RFC 1321. | |
| * Version 2.2 Copyright (C) Paul Johnston 1999 - 2009 | |
| * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet | |
| * Distributed under the BSD License | |
| * See http://pajhome.org.uk/crypt/md5 for more info. | |
| */ | |
| /* |
| DISPLAY=:0 cvlc -vvv --no-audio screen:// --screen-fps 1 --sout "#transcode{vcodec=MJPG,vb=800}:standard{access=http,mux=mpjpeg,dst=:18223/}" --sout-http-mime="multipart/x-mixed-replace;boundary=--7b3cc56e5f51db803f790dad720ed50a" |
| # dmesg | grep corrupt | |
| [ 21.280705] FAT-fs (mmcblk0p1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck. | |
| # umount /boot | |
| # git clone http://daniel-baumann.ch/git/software/dosfstools.git | |
| # cd dosfstools | |
| # make | |
| cc -O2 -fomit-frame-pointer -D_GNU_SOURCE -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -Wall -Wextra -Wno-sign-compare -Wno-missing-field-initializers -Wmissing-prototypes -Wstrict-prototypes -g -c -o fatlabel.o src/fatlabel.c | |
| . |
| disk=$1 | |
| iso=$2 | |
| primary="$disk"1 | |
| if [ -z $disk ] | |
| then | |
| echo "Specify a correct drive name" | |
| exit | |
| fi | |
| if [ -z $iso ] |