source-filter

How to make directShow to Create graph automatically with available filters

让人想犯罪 __ 提交于 2021-02-11 13:30:57
问题 I want to use the Medialooks multisource filter in my application, This has entry in HKEY_CURRENT_USER\SOFTWARE\Classes\CLSID\ But still i have to Add this filter manually using CLS_ID and AddFilter Function. Is there any way so that Renderfile function of Dshow will automatically creates a graph by enumerating the filters from registry Checked in Grphedt tool but if i manually insert and connect Filters I can play the videos properly.Otherwise it wont render automatically by building the

What concerns should I have if I use Smart::Comments in development code?

夙愿已清 提交于 2019-12-10 14:56:18
问题 I understand that Smart::Comments should not be used in production code, since it is a source filter. However, I have been using Smart::Comments in my development code and then commenting out the "use" line before sending the code to production. Given that I'm going to use it in my development code, what I should specifically be concerned about? I've searched the Internet and not found any reasons that I should be worried except that source filters are "a bad idea" or "evil" or that they

Why are Perl source filters bad and when is it OK to use them?

北城余情 提交于 2019-11-27 04:30:24
It is "common knowledge" that source filters are bad and should not be used in production code. When answering a a similar, but more specific question I couldn't find any good references that explain clearly why filters are bad and when they can be safely used. I think now is time to create one. Why are source filters bad? When is it OK to use a source filter? Sinan Ünür Only perl can parse Perl (see this example ): @result = (dothis $foo, $bar); # Which of the following is it equivalent to? @result = (dothis($foo), $bar); @result = dothis($foo, $bar); This kind of ambiguity makes it very hard

Why are Perl source filters bad and when is it OK to use them?

夙愿已清 提交于 2019-11-26 11:12:48
问题 It is \"common knowledge\" that source filters are bad and should not be used in production code. When answering a a similar, but more specific question I couldn\'t find any good references that explain clearly why filters are bad and when they can be safely used. I think now is time to create one. Why are source filters bad? When is it OK to use a source filter? 回答1: Only perl can parse Perl (see this example): @result = (dothis $foo, $bar); # Which of the following is it equivalent to?