MJPEG Tools Svn

Fix potential integer overflow

remove the y4m_accept_extension call now that the lower level routines accept
both 420mpeg2 and 420jpeg. this program really is not prepared to deal with
411, etc data.

If feature-level < 1 (i.e., older code), then accept all/any 4:2:0 chroma
modes, not just 4:2:0-JPEG.

(The default with no 'C' tag is still 4:2:0-JPEG, though.)

Add y4m_accept_extensions(1) BUT it's a lie - the program only deals with 4:2:0

Use new YUV4MPEG2 API and add the y4m_accept_extensions(1) call.

Accept the new extensions (needed for 411 handling)

Need to accept the new API extensions - add y4m_accept_extensions(1);

accept the new API extensions.

Use y4m_si_get_{width,height} accessor functions instead of structure members
(which do not exist now in the new YUV4MPEG2 API).

Initial attempt at getting yuvscaler and yuvcorrect to compile with the new
YUV4MPEG2 API.

Probably introduced bugs.