Update to vapoursynth api r3

git-svn-id: https://ffmpegsource.googlecode.com/svn/trunk@732 dcf88d3e-5074-11de-ac45-ff9ca5716a9b
Modify the range frame property to match the one documented in vapoursynth

git-svn-id: https://ffmpegsource.googlecode.com/svn/trunk@733 dcf88d3e-5074-11de-ac45-ff9ca5716a9b
Remove duplicate function in the vapoursynth support

git-svn-id: https://ffmpegsource.googlecode.com/svn/trunk@734 dcf88d3e-5074-11de-ac45-ff9ca5716a9b
Remove a mention of postproc in the build instructions

git-svn-id: https://ffmpegsource.googlecode.com/svn/trunk@735 dcf88d3e-5074-11de-ac45-ff9ca5716a9b
Bump required version to libav 0.8/FFmpeg 0.9

There's really no point in supporting stuff older than what Debian
stable has.

git-svn-id: https://ffmpegsource.googlecode.com/svn/trunk@736 dcf88d3e-5074-11de-ac45-ff9ca5716a9b
Remove mentions of pthreads for windows builds

git-svn-id: https://ffmpegsource.googlecode.com/svn/trunk@737 dcf88d3e-5074-11de-ac45-ff9ca5716a9b
Add configure check for avformat_get_riff_video_tags

Thanks for using the same version number for two different versions, you
incompetent fucks.

git-svn-id: https://ffmpegsource.googlecode.com/svn/trunk@738 dcf88d3e-5074-11de-ac45-ff9ca5716a9b
Fix VapourSynth GetLogLevel

Actually get the log level rather than setting the log level.

git-svn-id: https://ffmpegsource.googlecode.com/svn/trunk@739 dcf88d3e-5074-11de-ac45-ff9ca5716a9b
fix a memleak

git-svn-id: https://ffmpegsource.googlecode.com/svn/trunk@740 dcf88d3e-5074-11de-ac45-ff9ca5716a9b
Fix a memleak, attempt 2.
av_bitstream_filter_filter() can reallocate the input buffer and give you a different pointer back, and it's apparently your responsibility to free it. This was previously not done.

The code is basically still incorrect and will not work for chains of more than one bitstream filter, but I don't think that's ever been used in ffms.

git-svn-id: https://ffmpegsource.googlecode.com/svn/trunk@741 dcf88d3e-5074-11de-ac45-ff9ca5716a9b
Don't try to apply audio delay relative to empty video tracks

git-svn-id: https://ffmpegsource.googlecode.com/svn/trunk@742 dcf88d3e-5074-11de-ac45-ff9ca5716a9b
make the documentation a bit less "fuck you"

git-svn-id: https://ffmpegsource.googlecode.com/svn/trunk@743 dcf88d3e-5074-11de-ac45-ff9ca5716a9b