Filter or Hook to catch pre-rendering of post content

Question

Is there a filter or hook that is triggered just before post content is rendered?

What I'd like to do is to apply a filter to the text content of a post just before the post text is being rendered.

Answer 1

Can you not simply use the_content filter hook?

function mytheme_content_filter( $content ) {
     // Do stuff to $content, which contains the_content()
     // Then return it
     return $content;
}
add_filter( 'the_content', 'mytheme_content_filter' );