ffmpeg -i "Apache Sqoop Tutorial Part 1.mp4" -c copy -bsf:v h264_mp4toannexb -f mpegts intermediate1.ts
ffmpeg -i "Apache Sqoop Tutorial Part 2.mp4" -c copy -bsf:v h264_mp4toannexb -f mpegts intermediate2.ts
ffmpeg -i "Apache Sqoop Tutorial Part 3.mp4" -c copy -bsf:v h264_mp4toannexb -f mpegts intermediate3.ts
ffmpeg -i "Apache Sqoop Tutorial Part 4.mp4" -c copy -bsf:v h264_mp4toannexb -f mpegts intermediate4.ts
ffmpeg -i "concat:intermediate1.ts|intermediate2.ts|intermediate3.ts|intermediate4.ts" -c copy -bsf:a aac_adtstoasc "Apache Sqoop Tutorial.mp4"
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# install dependencies | |
sudo apt-get update | |
sudo apt-get install -y build-essential | |
sudo apt-get install -y cmake | |
sudo apt-get install -y libgtk2.0-dev | |
sudo apt-get install -y pkg-config | |
sudo apt-get install -y python-numpy python-dev | |
sudo apt-get install -y libavcodec-dev libavformat-dev libswscale-dev | |
sudo apt-get install -y libjpeg-dev libpng-dev libtiff-dev libjasper-dev | |
I've moved this gist to https://github.com/phynet/iOS-Schemes please check it there ;)
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#pragma mark 获取相册最后一张照片 | |
- (void)p_getLastestPhoto | |
{ | |
ALAssetsLibrary *library = [[ALAssetsLibrary alloc] init]; | |
__block UIImage *imagelast; | |
// Enumerate just the photos and videos group by using ALAssetsGroupSavedPhotos. | |
[library enumerateGroupsWithTypes:ALAssetsGroupSavedPhotos usingBlock:^(ALAssetsGroup *group, BOOL *stop) { | |
The goal of this cheatsheet is to make it easy to add hand-rolled authentication to any rails app in a series of layers.
First the simplest/core layers, then optional layers depending on which features/functionality you want.
Specs |
|
---|---|
AUTHOR | Ira Herman |
LANGUAGE/STACK | Ruby on Rails Version 4, 5, or 6 |
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# 邪魔歪道之使用OpenCV精准切割视频 | |
## ffmpeg 切割视频 | |
使用ffmpeg直接切割视频的命令 | |
``` | |
ffmpeg -i test.mp4 -ss 00:00:00 -t 00:00:30 -c:v copy -c:a copy output.mp4 | |
``` | |
或者 | |
``` |