Batch encode tests from last night:
* 480p, 1080p to AV1 at crf 20
* 480i, 1080i deinterlaced to double frame rate, then AV1 at crf 20
* 2160p to HEVC at crf 18
ratios of original to new output file size (audio and subtitle tracks are kept untouched):
pitch perfect 480p - about 3:1
pitch perfect 2 1080p - about 3:1
pitch perfect 3 2160p - about 5:3
max headroom 480i - about 3:2
blake's 7 scaleup to 1080i - about 4:1
Brooke Vibber :neocat_cofe:
npub1uu…99kt2
2026-03-10 19:26:39 UTC
in reply to nevent1q…vsx2
Author Public Key
npub1uurt4jfy3mqxptf64hpzk8r2d0uf72cgxr7zx78efs05ryklx6cs499kt2Seen on
wss://relay.momostr.pinkPublished at
2026-03-10 19:26:39 UTCEvent JSON
{
"id": "9e2b04060da95176813a898accce96203023a0436412aec6fe5a388c554a96ad",
"pubkey": "e706bac9248ec060ad3aadc22b1c6a6bf89f2b0830fc2378f94c1f4192df36b1",
"created_at": 1773170799,
"kind": 1,
"tags": [
[
"p",
"e706bac9248ec060ad3aadc22b1c6a6bf89f2b0830fc2378f94c1f4192df36b1"
],
[
"e",
"3465ff2e1058510a32821305fde89f3ab3392439fafdef4fa9f9ef7d658e0842",
"",
"reply",
"e706bac9248ec060ad3aadc22b1c6a6bf89f2b0830fc2378f94c1f4192df36b1"
],
[
"proxy",
"https://bikeshed.vibber.net/@brooke/116206521539056592",
"web"
],
[
"e",
"f438b7b76bed7e557d200c4e5cd2e0225c52c581d4bca0c0e097ae9b433d1e8a",
"",
"root",
"e706bac9248ec060ad3aadc22b1c6a6bf89f2b0830fc2378f94c1f4192df36b1"
],
[
"proxy",
"https://bikeshed.vibber.net/users/brooke/statuses/116206521539056592",
"activitypub"
],
[
"L",
"pink.momostr"
],
[
"l",
"pink.momostr.activitypub:https://bikeshed.vibber.net/users/brooke/statuses/116206521539056592",
"pink.momostr"
],
[
"-"
]
],
"content": "Batch encode tests from last night:\n\n* 480p, 1080p to AV1 at crf 20\n* 480i, 1080i deinterlaced to double frame rate, then AV1 at crf 20\n* 2160p to HEVC at crf 18\n\nratios of original to new output file size (audio and subtitle tracks are kept untouched):\n\npitch perfect 480p - about 3:1\npitch perfect 2 1080p - about 3:1\npitch perfect 3 2160p - about 5:3\n\nmax headroom 480i - about 3:2\nblake's 7 scaleup to 1080i - about 4:1",
"sig": "0531ad2550d79cbf5a98c38df04ccc942f698e978063347df32702d3eb782eec9cf238e00ce9be6c1dbdf0a6a560583f5df58c451cf50dce355d2d84cd831fa7"
}