diff options
| -rwxr-xr-x | localvideowebencode | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/localvideowebencode b/localvideowebencode index 87b1a64..bb1ce63 100755 --- a/localvideowebencode +++ b/localvideowebencode @@ -158,6 +158,34 @@ samplestart=0 samplelength=150 compression=normal +# establish/verify rendering settings for reference codec +# +# 1) pick reference frame:encoding format: 360p30:h.264 +# 2) pick reference codec (incl. normal settings) +# 3) render reference frame format with --compression=quality +# * check that bpp is near "refbpp" of 0.12 +# (otherwise adapt settings or do research and update refbpp) +# 4) render misc. frame formats (esp. modulus 16) with --compression=quality +# * check that bpp derives from refbpp by "rule of .75" +# (otherwise adapt settings and/or do research and update rule) +# 5) render misc. frame formats with --compression=normal +# * check that bpp derives from refbpp by "rule of .75" +# 6) optionally pick dirty/hq settings +# * check that --compression=quality has filesize similar as normal + +# establish/verify rendering settings for non-reference codec +# +# 1) pick normal settings +# 2) render reference frame format with --compression=quality +# * check that this "codec-bpp" deviates reasonably from refbpp +# 3) render misc. frame formats (esp. modulus 16) with --compression=quality +# * check that bpp derives from codec-bpp by "rule of .75" +# (otherwise adapt settings and/or extend rule) +# 4) render misc. frame formats with --compression=normal +# * check that bpp derives from codec-bpp by "rule of .75" +# 5) optionally pick dirty/hq settings +# * check that --compression=quality has similar filesize as normal + # VP8 is rumored to compress ~20% worse than H.264 factor_vp8=120/100 # VP9 compresses ~30% better than H.264 for practical use-cases |