v1.6.2

Added

• Added an option to keep parameter set NAL units (SPS/PPS for H264,
  SPS/PPS/VPS for H265), which is necessary if the parameter set NAL units
  are varying from frame to frame. The flag is --strip_parameter_set_nalus,
  which is true by default. This addresses #206 (the flag needs to be set to
  false).

Fixed

• Fixed the problem that sliding window logic is still active with DASH static
  live profile (#218).
• Fixed AAC-HE not correctly signaled in codec string (#225).
• [WebM] Fixed output truncated if using the same file for both input and
  output (#210).
• [WebM] Fixed possible integer overflow in stream duration in MPD manifest
  (#214).