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Fastest way to extract frames using ffmpeg?
..., you could always store the frames uncompressed as BMP images:
ffmpeg -i file.mpg -r 1/1 $filename%03d.bmp
This also has the advantage of not incurring more quality loss through quantization by transcoding to JPEG. (PNG is also lossless but tends to take much longer than JPEG to encode.)
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Why Func instead of Predicate?
...now what "predicate" means - otherwise you need to look at object-browser (etc) to find the signatute.
Conversely Func<T,bool> follows a standard pattern; I can immediately tell that this is a function that takes a T and returns a bool - don't need to understand any terminology - just apply ...
How to determine why visual studio might be skipping projects when building a solution
...U' and it set the child dll to 'any CPU' too, however, I'd deleted that profile and left only 'x86'. Picking x86 for just the dll make it start working
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How to redirect single url in nginx?
...age with the version 1.10.3 and it was fine, could you provide your config file somehow? You probably are missing something.
– Mohammad AbuShady
Sep 27 '17 at 9:16
add a comme...
Comments in .gitignore?
Can you write comments in a .gitignore file?
2 Answers
2
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Windows x64编程中寄存器的使用 - C/C++ - 清泛网 - 专注C/C++及内核技术
... 3 个参数
xmm3 - 第 4 个参数
下面的代码：
void EditTextFile(HWND hEdit, LPCTSTR szFileName)
{
HANDLE hFile;
DWORD dwFileSize;
DWORD dwFileSizeHigh;
LPTSTR lpFileText;
LPTSTR lpFileTextW;
WORD wSignature;
DWORD dwRead...
python: Change the scripts working directory to the script's own directory
...you can use the os.path functions:
import os
abspath = os.path.abspath(__file__)
dname = os.path.dirname(abspath)
os.chdir(dname)
This takes the filename of your script, converts it to an absolute path, then extracts the directory of that path, then changes into that directory.
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How to resize superview to fit all subviews with autolayout?
...eft with default margin, width and height are dynamic based on text, font, etc (i.e. UILabel has an intrinsicContentSize))
[self.view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|-[_myLabel]" options:0 metrics:0 views:viewsDictionary]];
[self.view addConstraints:[NSLay...
What is the best collation to use for MySQL with PHP? [closed]
...f, including setting the character set, the collation and switching innodb_file_format to Barracuda
SQL CREATE statements may need to include: ROW_FORMAT=DYNAMIC
DYNAMIC is required for indexes on VARCHAR(192) and larger.
NOTE: Switching to Barracuda from Antelope, may require restarting the MyS...
Open document with default OS application in Python, both in Windows and Mac OS
...em via os.system, which works, but...
Escaping: os.system only works with filenames that don't have any spaces or other shell metacharacters in the pathname (e.g. A:\abc\def\a.txt), or else these need to be escaped. There is shlex.quote for Unix-like systems, but nothing really standard for Windows...