Show option "-f" in usage help text.
Prefix "DECLARE_ALIGNED" to avoid conflict with definition in ffmpeg.
Merge pull request #23 from fancycode/ffmpeg_reserved_name

Prefix "DECLARE_ALIGNED" to avoid conflict with definition in ffmpeg.
Fixed stack memory that is one byte too small.
Use cached value instead of looking it up.
Merge pull request #24 from fancycode/refpic_alloca_size

Fixed stack memory that is one byte too small.
Ignore .la files.
Avoid excessive reallocations for skipped bytes.
Merge pull request #25 from fancycode/skipbytes_realloc

Avoid excessive reallocations for skipped bytes.
Merge branch 'dirk'