diff --git a/Cargo.lock b/Cargo.lock
index ad7074b8..b7861b4b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -23,6 +23,15 @@ dependencies = [
  "memchr",
 ]
 
+[[package]]
+name = "android_system_properties"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "819e7219dbd41043ac279b19830f2efc897156490d7fd6ea916720117ee66311"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "ansi_term"
 version = "0.12.1"
@@ -34,9 +43,9 @@ dependencies = [
 
 [[package]]
 name = "anyhow"
-version = "1.0.58"
+version = "1.0.63"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bb07d2053ccdbe10e2af2995a2f116c1330396493dc1269f6a91d0ae82e19704"
+checksum = "a26fa4d7e3f2eebadf743988fc8aec9fa9a9e82611acafd77c1462ed6262440a"
 
 [[package]]
 name = "arbitrary"
@@ -66,6 +75,9 @@ name = "arrayvec"
 version = "0.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8da52d66c7071e2e3fa2a1e5c6d088fec47b593032b254f5e980de8ea54454d6"
+dependencies = [
+ "serde",
+]
 
 [[package]]
 name = "atty"
@@ -135,11 +147,13 @@ dependencies = [
 [[package]]
 name = "av-scenechange"
 version = "0.7.2"
-source = "git+https://github.com/rust-av/av-scenechange?rev=4804462f2b6ae6209609cd95b5d9739264bf614f#4804462f2b6ae6209609cd95b5d9739264bf614f"
+source = "git+https://github.com/redzic/av-scenechange?branch=zerocopy#cd259cac94278f2d431dce99774d3c9f4f8598b8"
 dependencies = [
  "anyhow",
+ "ffmpeg-next",
  "rav1e",
  "rust_hawktracer",
+ "vapoursynth",
  "y4m",
 ]
 
@@ -151,6 +165,9 @@ checksum = "7ac3ad7be4db4d3bbe49beee21e8170f4a4d6d1f1c8c4ce68c5ec0c77b89a5f9"
 dependencies = [
  "anyhow",
  "arrayvec",
+ "itertools",
+ "nom",
+ "serde",
 ]
 
 [[package]]
@@ -181,7 +198,7 @@ dependencies = [
  "path_abs",
  "shlex",
  "thiserror",
- "vergen 7.2.1",
+ "vergen",
 ]
 
 [[package]]
@@ -221,7 +238,7 @@ dependencies = [
  "smallvec",
  "splines",
  "strsim",
- "strum 0.24.1",
+ "strum",
  "sysinfo",
  "textwrap",
  "thiserror",
@@ -262,11 +279,22 @@ version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "97d524fdb78bf6dc6d2dc4c02043e4b4962ede0a17ae3e13f0ed211a7eda5897"
 
+[[package]]
+name = "built"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4f346b6890a0dfa7266974910e7df2d5088120dd54721b9b0e5aae1ae5e05715"
+dependencies = [
+ "cargo-lock",
+ "chrono",
+ "git2",
+]
+
 [[package]]
 name = "bumpalo"
-version = "3.10.0"
+version = "3.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "37ccbd214614c6783386c1af30caf03192f17891059cecc394b4fb119e363de3"
+checksum = "c1ad822118d20d2c234f427000d5acc36eabe1e29a348c89b63dd60b13f28e5d"
 
 [[package]]
 name = "byte-slice-cast"
@@ -276,9 +304,21 @@ checksum = "87c5fdd0166095e1d463fc6cc01aa8ce547ad77a4e84d42eb6762b084e28067e"
 
 [[package]]
 name = "bytes"
-version = "1.1.0"
+version = "1.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c4872d67bab6358e59559027aa3b9157c53d9358c51423c17554809a8858e0f8"
+checksum = "ec8a7b6a70fde80372154c65702f00a0f56f3e1c36abbc6c440484be248856db"
+
+[[package]]
+name = "cargo-lock"
+version = "7.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6c408da54db4c50d4693f7e649c299bc9de9c23ead86249e5368830bb32a734b"
+dependencies = [
+ "semver",
+ "serde",
+ "toml",
+ "url",
+]
 
 [[package]]
 name = "cc"
@@ -300,9 +340,9 @@ dependencies = [
 
 [[package]]
 name = "cfg-expr"
-version = "0.7.4"
+version = "0.10.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "30aa9e2ffbb838c6b451db14f3cd8e63ed622bf859f9956bc93845a10fafc26a"
+checksum = "0aacacf4d96c24b2ad6eb8ee6df040e4f27b0d0b39a5710c30091baa830485db"
 dependencies = [
  "smallvec",
 ]
@@ -315,14 +355,16 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
 name = "chrono"
-version = "0.4.19"
+version = "0.4.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "670ad68c9088c2a963aaa298cb369688cf3f9465ce5e2d4ca10e6e0098a1ce73"
+checksum = "bfd4d1b31faaa3a89d7934dbded3111da0d2ef28e3ebccdb4f0179f5929d1ef1"
 dependencies = [
- "libc",
+ "iana-time-zone",
+ "js-sys",
  "num-integer",
  "num-traits",
  "time 0.1.44",
+ "wasm-bindgen",
  "winapi",
 ]
 
@@ -339,9 +381,9 @@ dependencies = [
 
 [[package]]
 name = "clap"
-version = "3.2.12"
+version = "3.2.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ab8b79fe3946ceb4a0b1c080b4018992b8d27e9ff363644c1c9b6387c854614d"
+checksum = "68d43934757334b5c0519ff882e1ab9647ac0258b47c24c4f490d78e42697fd5"
 dependencies = [
  "atty",
  "bitflags",
@@ -356,11 +398,11 @@ dependencies = [
 
 [[package]]
 name = "clap_derive"
-version = "3.2.7"
+version = "3.2.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "759bf187376e1afa7b85b959e6a664a3e7a95203415dba952ad19139e798f902"
+checksum = "ea0c8bce528c4be4da13ea6fead8965e95b6073585a2f05204bd8f4119f82a65"
 dependencies = [
- "heck 0.4.0",
+ "heck",
  "proc-macro-error",
  "proc-macro2",
  "quote",
@@ -403,9 +445,9 @@ checksum = "5827cebf4670468b8772dd191856768aedcb1b0278a04f989f7766351917b9dc"
 
 [[package]]
 name = "crossbeam-channel"
-version = "0.5.5"
+version = "0.5.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4c02a4d71819009c192cf4872265391563fd6a84c81ff2c0f2a7026ca4c1d85c"
+checksum = "c2dd04ddaf88237dc3b8d8f9a3c1004b506b54b3313403944054d23c0870c521"
 dependencies = [
  "cfg-if",
  "crossbeam-utils",
@@ -413,9 +455,9 @@ dependencies = [
 
 [[package]]
 name = "crossbeam-deque"
-version = "0.8.1"
+version = "0.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6455c0ca19f0d2fbf751b908d5c55c1f5cbc65e03c4225427254b46890bdde1e"
+checksum = "715e8152b692bba2d374b53d4875445368fdf21a94751410af607a5ac677d1fc"
 dependencies = [
  "cfg-if",
  "crossbeam-epoch",
@@ -424,9 +466,9 @@ dependencies = [
 
 [[package]]
 name = "crossbeam-epoch"
-version = "0.9.9"
+version = "0.9.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "07db9d94cbd326813772c968ccd25999e5f8ae22f4f8d1b11effa37ef6ce281d"
+checksum = "045ebe27666471bb549370b4b0b3e51b07f56325befa4284db65fc89c02511b1"
 dependencies = [
  "autocfg",
  "cfg-if",
@@ -438,9 +480,9 @@ dependencies = [
 
 [[package]]
 name = "crossbeam-utils"
-version = "0.8.10"
+version = "0.8.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7d82ee10ce34d7bc12c2122495e7593a9c41347ecdd64185af4ecf72cb1a7f83"
+checksum = "51887d4adc7b564537b15adcfb307936f8075dfcd5f00dde9a9f1d29383682bc"
 dependencies = [
  "cfg-if",
  "once_cell",
@@ -448,22 +490,23 @@ dependencies = [
 
 [[package]]
 name = "dashmap"
-version = "5.3.4"
+version = "5.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3495912c9c1ccf2e18976439f4443f3fee0fd61f424ff99fde6a66b15ecb448f"
+checksum = "907076dfda823b0b36d2a1bb5f90c96660a5bbcd7729e10727f07858f22c4edc"
 dependencies = [
  "cfg-if",
  "hashbrown",
  "lock_api",
+ "once_cell",
  "parking_lot_core",
  "serde",
 ]
 
 [[package]]
 name = "either"
-version = "1.7.0"
+version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3f107b87b6afc2a64fd13cac55fe06d6c8859f12d4b14cbcdd2c67d0976781be"
+checksum = "90e5c1c8368803113bf0c9584fc495a58b86dc8a29edbf8fe877d21d9507e797"
 
 [[package]]
 name = "encode_unicode"
@@ -473,18 +516,18 @@ checksum = "a357d28ed41a50f9c765dbfe56cbc04a64e53e5fc58ba79fbc34c10ef3df831f"
 
 [[package]]
 name = "enum-iterator"
-version = "0.7.0"
+version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4eeac5c5edb79e4e39fe8439ef35207780a11f69c52cbe424ce3dfad4cb78de6"
+checksum = "91a4ec26efacf4aeff80887a175a419493cb6f8b5480d26387eb0bd038976187"
 dependencies = [
  "enum-iterator-derive",
 ]
 
 [[package]]
 name = "enum-iterator-derive"
-version = "0.7.0"
+version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c134c37760b27a871ba422106eedbb8247da973a09e82558bf26d619c882b159"
+checksum = "828de45d0ca18782232dfb8f3ea9cc428e8ced380eb26a520baaacfc70de39ce"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -553,9 +596,9 @@ dependencies = [
 
 [[package]]
 name = "flexi_logger"
-version = "0.22.5"
+version = "0.22.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ee9a6796ff68a1014f6665dac55341820f26e63ec706e58bfaee468cf0ac174f"
+checksum = "0c76a80dd14a27fc3d8bc696502132cb52b3f227256fd8601166c3a35e45f409"
 dependencies = [
  "ansi_term",
  "atty",
@@ -565,7 +608,7 @@ dependencies = [
  "log",
  "rustversion",
  "thiserror",
- "time 0.3.11",
+ "time 0.3.9",
 ]
 
 [[package]]
@@ -603,9 +646,9 @@ dependencies = [
 
 [[package]]
 name = "git2"
-version = "0.14.4"
+version = "0.13.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d0155506aab710a86160ddb504a480d2964d7ab5b9e62419be69e0032bc5931c"
+checksum = "f29229cc1b24c0e6062f6e742aa3e256492a5323365e5ed3413599f8a5eff7d6"
 dependencies = [
  "bitflags",
  "libc",
@@ -626,15 +669,6 @@ version = "0.12.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8a9ee70c43aaf417c914396645a0fa852624801b24ebb7ae78fe8272889ac888"
 
-[[package]]
-name = "heck"
-version = "0.3.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6d621efb26863f0e9924c6ac577e8275e5e6b77455db64ffa6c65c904e9e132c"
-dependencies = [
- "unicode-segmentation",
-]
-
 [[package]]
 name = "heck"
 version = "0.4.0"
@@ -650,6 +684,20 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "iana-time-zone"
+version = "0.1.47"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4c495f162af0bf17656d0014a0eded5f3cd2f365fdd204548c2869db89359dc7"
+dependencies = [
+ "android_system_properties",
+ "core-foundation-sys",
+ "js-sys",
+ "once_cell",
+ "wasm-bindgen",
+ "winapi",
+]
+
 [[package]]
 name = "idna"
 version = "0.2.3"
@@ -704,9 +752,9 @@ dependencies = [
 
 [[package]]
 name = "itoa"
-version = "1.0.2"
+version = "1.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "112c678d4050afce233f4f2852bb2eb519230b3cf12f33585275537d7e41578d"
+checksum = "6c8af84674fe1f223a982c933a0ee1086ac4d4052aa0fb8060c12c6ad838e754"
 
 [[package]]
 name = "jobserver"
@@ -719,9 +767,9 @@ dependencies = [
 
 [[package]]
 name = "js-sys"
-version = "0.3.58"
+version = "0.3.59"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c3fac17f7123a73ca62df411b1bf727ccc805daa070338fda671c86dac1bdc27"
+checksum = "258451ab10b34f8af53416d1fdab72c22e805f0c92a1136d59470ec0b11138b2"
 dependencies = [
  "wasm-bindgen",
 ]
@@ -740,9 +788,9 @@ checksum = "830d08ce1d1d941e6b30645f1a0eb5643013d835ce3779a5fc208261dbe10f55"
 
 [[package]]
 name = "libc"
-version = "0.2.126"
+version = "0.2.132"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "349d5a591cd28b49e1d1037471617a32ddcda5731b99419008085f72d5a53836"
+checksum = "8371e4e5341c3a96db127eb2465ac681ced4c433e01dd0e938adbef26ba93ba5"
 
 [[package]]
 name = "libfuzzer-sys"
@@ -756,9 +804,9 @@ dependencies = [
 
 [[package]]
 name = "libgit2-sys"
-version = "0.13.4+1.4.2"
+version = "0.12.26+1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d0fa6563431ede25f5cc7f6d803c6afbc1c5d3ad3d4925d12c882bf2b526f5d1"
+checksum = "19e1c899248e606fbfe68dcb31d8b0176ebab833b103824af31bddf4b7457494"
 dependencies = [
  "cc",
  "libc",
@@ -790,9 +838,9 @@ dependencies = [
 
 [[package]]
 name = "lock_api"
-version = "0.4.7"
+version = "0.4.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "327fa5b6a6940e4699ec49a9beae1ea4845c6bab9314e4f84ac68742139d8c53"
+checksum = "9f80bf5aacaf25cbfc8210d1cfb718f2bf3b11c4c54e5afe36c236853a8ec390"
 dependencies = [
  "autocfg",
  "scopeguard",
@@ -976,15 +1024,15 @@ checksum = "830b246a0e5f20af87141b25c173cd1b609bd7779a4617d6ec582abaf90870f3"
 
 [[package]]
 name = "once_cell"
-version = "1.13.0"
+version = "1.13.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "18a6dbe30758c9f83eb00cbea4ac95966305f5a7772f3f42ebfc7fc7eddbd8e1"
+checksum = "074864da206b4973b84eb91683020dbefd6a8c3f0f38e054d93954e891935e4e"
 
 [[package]]
 name = "os_str_bytes"
-version = "6.2.0"
+version = "6.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "648001efe5d5c0102d8cea768e348da85d90af8ba91f0bea908f157951493cd4"
+checksum = "9ff7415e9ae3fff1225851df9e0d9e4e5479f947619774677a63572e55e80eff"
 
 [[package]]
 name = "parking_lot"
@@ -1011,9 +1059,9 @@ dependencies = [
 
 [[package]]
 name = "paste"
-version = "1.0.7"
+version = "1.0.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0c520e05135d6e763148b6426a837e239041653ba7becd2e538c076c738025fc"
+checksum = "9423e2b32f7a043629287a536f21951e8c6a82482d0acb1eeebfc90bc2225b22"
 
 [[package]]
 name = "path_abs"
@@ -1053,9 +1101,9 @@ checksum = "1df8c4ec4b0627e53bdf214615ad287367e482558cf84b109250b37464dc03ae"
 
 [[package]]
 name = "plotters"
-version = "0.3.2"
+version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9428003b84df1496fb9d6eeee9c5f8145cb41ca375eb0dad204328888832811f"
+checksum = "716b4eeb6c4a1d3ecc956f75b43ec2e8e8ba80026413e70a3f41fd3313d3492b"
 dependencies = [
  "num-traits",
  "plotters-backend",
@@ -1072,9 +1120,9 @@ checksum = "193228616381fecdc1224c62e96946dfbc73ff4384fba576e052ff8c1bea8142"
 
 [[package]]
 name = "plotters-svg"
-version = "0.3.2"
+version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e0918736323d1baff32ee0eade54984f6f201ad7e97d5cfb5d6ab4a358529615"
+checksum = "f9a81d2759aae1dae668f783c308bc5c8ebd191ff4184aaa1b37f65a6ae5a56f"
 dependencies = [
  "plotters-backend",
 ]
@@ -1111,9 +1159,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.40"
+version = "1.0.43"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dd96a1e8ed2596c337f8eae5f24924ec83f5ad5ab21ea8e455d3566c69fbcaf7"
+checksum = "0a2ca2c61bc9f3d74d2886294ab7b9853abd9c1ad903a3ac7815c58989bb7bab"
 dependencies = [
  "unicode-ident",
 ]
@@ -1140,9 +1188,9 @@ dependencies = [
 
 [[package]]
 name = "quote"
-version = "1.0.20"
+version = "1.0.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3bcdf212e9776fbcb2d23ab029360416bb1706b1aea2d1a5ba002727cbcab804"
+checksum = "bbe448f377a7d6961e30f5955f9b8d106c3f5e449d493ee1b125c1d43c2b5179"
 dependencies = [
  "proc-macro2",
 ]
@@ -1180,13 +1228,15 @@ dependencies = [
 [[package]]
 name = "rav1e"
 version = "0.5.0"
-source = "git+https://github.com/xiph/rav1e#b2db4a3cc6f9bcf5b07a6668d20d5d09f3afb063"
+source = "git+https://github.com/redzic/rav1e?branch=zerocopy#6a44da2bbc929e35cbd39d6d7fb6665a62e4f031"
 dependencies = [
  "arbitrary",
  "arg_enum_proc_macro",
  "arrayref",
  "arrayvec",
+ "av1-grain",
  "bitstream-io",
+ "built",
  "cc",
  "cfg-if",
  "const_fn_assert",
@@ -1212,7 +1262,6 @@ dependencies = [
  "system-deps",
  "thiserror",
  "v_frame",
- "vergen 3.0.4",
 ]
 
 [[package]]
@@ -1241,9 +1290,9 @@ dependencies = [
 
 [[package]]
 name = "redox_syscall"
-version = "0.2.13"
+version = "0.2.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "62f25bc4c7e55e0b0b7a1d43fb893f4fa1361d0abe38b9ce4f323c2adfe6ef42"
+checksum = "fb5a58c1855b4b6819d59012155603f0b22ad30cad752600aadfcb695265519a"
 dependencies = [
  "bitflags",
 ]
@@ -1304,15 +1353,15 @@ dependencies = [
 
 [[package]]
 name = "rustversion"
-version = "1.0.8"
+version = "1.0.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "24c8ad4f0c00e1eb5bc7614d236a7f1300e3dbd76b68cac8e06fb00b015ad8d8"
+checksum = "97477e48b4cf8603ad5f7aaf897467cf42ab4218a38ef76fb14c2d6773a6d6a8"
 
 [[package]]
 name = "ryu"
-version = "1.0.10"
+version = "1.0.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f3f6f92acf49d1b98f7a81226834412ada05458b7364277387724a237f062695"
+checksum = "4501abdff3ae82a1c1b477a17252eb69cee9e66eb915c1abaa4f44d873df9f09"
 
 [[package]]
 name = "scopeguard"
@@ -1322,24 +1371,27 @@ checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
 
 [[package]]
 name = "semver"
-version = "1.0.12"
+version = "1.0.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a2333e6df6d6598f2b1974829f853c2b4c5f4a6e503c10af918081aa6f8564e1"
+checksum = "93f6841e709003d68bb2deee8c343572bf446003ec20a583e76f7b15cebf3711"
+dependencies = [
+ "serde",
+]
 
 [[package]]
 name = "serde"
-version = "1.0.139"
+version = "1.0.144"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0171ebb889e45aa68b44aee0859b3eede84c6f5f5c228e6f140c0b2a0a46cad6"
+checksum = "0f747710de3dcd43b88c9168773254e809d8ddbdf9653b84e2554ab219f17860"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.139"
+version = "1.0.144"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dc1d3230c1de7932af58ad8ffbe1d784bd55efd5a9d84ac24f69c72d83543dfb"
+checksum = "94ed3a816fb1d101812f83e789f888322c34e291f894f19590dc310963e87a00"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1348,9 +1400,9 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.82"
+version = "1.0.85"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "82c2c1fdcd807d1098552c5b9a36e425e42e9fbd7c6a37a8425f390f781f7fa7"
+checksum = "e55a28e3aaef9d5ce0506d0a14dbba8054ddc7e499ef522dd8b26859ec9d4a44"
 dependencies = [
  "itoa",
  "ryu",
@@ -1401,9 +1453,9 @@ checksum = "f67ad224767faa3c7d8b6d91985b78e70a1324408abcb1cfcc2be4c06bc06043"
 
 [[package]]
 name = "splines"
-version = "4.1.0"
+version = "4.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "85d3c90d443c10f66d69fc45269f3bf1d3b0171c239751fe6129b7d79a82c535"
+checksum = "39c3ba77d6f4cc9405ff36c95b70292e59f814c2e07385a1b47121ba0f862c52"
 
 [[package]]
 name = "std_prelude"
@@ -1427,40 +1479,22 @@ version = "0.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "73473c0e59e6d5812c5dfe2a064a6444949f089e20eec9a2e5506596494e4623"
 
-[[package]]
-name = "strum"
-version = "0.21.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "aaf86bbcfd1fa9670b7a129f64fc0c9fcbbfe4f1bc4210e9e98fe71ffc12cde2"
-
 [[package]]
 name = "strum"
 version = "0.24.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "063e6045c0e62079840579a7e47a355ae92f60eb74daaf156fb1e84ba164e63f"
 dependencies = [
- "strum_macros 0.24.2",
-]
-
-[[package]]
-name = "strum_macros"
-version = "0.21.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d06aaeeee809dbc59eb4556183dd927df67db1540de5be8d3ec0b6636358a5ec"
-dependencies = [
- "heck 0.3.3",
- "proc-macro2",
- "quote",
- "syn",
+ "strum_macros",
 ]
 
 [[package]]
 name = "strum_macros"
-version = "0.24.2"
+version = "0.24.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4faebde00e8ff94316c01800f9054fd2ba77d30d9e922541913051d1d978918b"
+checksum = "1e385be0d24f186b4ce2f9982191e7101bb737312ad61c1f2f984f34bcf85d59"
 dependencies = [
- "heck 0.4.0",
+ "heck",
  "proc-macro2",
  "quote",
  "rustversion",
@@ -1469,9 +1503,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "1.0.98"
+version = "1.0.99"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c50aef8a904de4c23c788f104b7dddc7d6f79c647c7c8ce4cc8f73eb0ca773dd"
+checksum = "58dbef6ec655055e20b86b15a8cc6d439cca19b667537ac6a1369572d151ab13"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1507,18 +1541,13 @@ dependencies = [
 
 [[package]]
 name = "system-deps"
-version = "3.1.2"
+version = "6.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7ab7dbd121ce66af2176147a48c7e01aaf1f001837a18a7cf4317858606bbdf8"
+checksum = "a1a45a1c4c9015217e12347f2a411b57ce2c4fc543913b14b6fe40483328e709"
 dependencies = [
- "anyhow",
  "cfg-expr",
- "heck 0.3.3",
- "itertools",
+ "heck",
  "pkg-config",
- "strum 0.21.0",
- "strum_macros 0.21.1",
- "thiserror",
  "toml",
  "version-compare",
 ]
@@ -1555,18 +1584,18 @@ dependencies = [
 
 [[package]]
 name = "thiserror"
-version = "1.0.31"
+version = "1.0.32"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bd829fe32373d27f76265620b5309d0340cb8550f523c1dda251d6298069069a"
+checksum = "f5f6586b7f764adc0231f4c79be7b920e766bb2f3e51b3661cdb263828f19994"
 dependencies = [
  "thiserror-impl",
 ]
 
 [[package]]
 name = "thiserror-impl"
-version = "1.0.31"
+version = "1.0.32"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0396bc89e626244658bef819e22d0cc459e795a5ebe878e6ec336d1674a8d79a"
+checksum = "12bafc5b54507e0149cdf1b145a5d80ab80a90bcd9275df43d4fff68460f6c21"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1586,9 +1615,9 @@ dependencies = [
 
 [[package]]
 name = "time"
-version = "0.3.11"
+version = "0.3.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "72c91f41dcb2f096c05f0873d667dceec1087ce5bcf984ec8ffb19acddbb3217"
+checksum = "c2702e08a7a860f005826c6815dcac101b19b5eb330c27fe4a5928fec1d20ddd"
 dependencies = [
  "itoa",
  "libc",
@@ -1619,9 +1648,9 @@ checksum = "cda74da7e1a664f795bb1f8a87ec406fb89a02522cf6e50620d016add6dbbf5c"
 
 [[package]]
 name = "tokio"
-version = "1.20.0"
+version = "1.20.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "57aec3cfa4c296db7255446efb4928a6be304b431a806216105542a67b6ca82e"
+checksum = "7a8325f63a7d4774dd041e363b2409ed1c5cbbd0f867795e661df066b2b0a581"
 dependencies = [
  "autocfg",
  "bytes",
@@ -1651,9 +1680,9 @@ checksum = "099b7128301d285f79ddd55b9a83d5e6b9e97c92e0ea0daebee7263e932de992"
 
 [[package]]
 name = "unicode-ident"
-version = "1.0.2"
+version = "1.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "15c61ba63f9235225a22310255a29b806b907c9b8c964bcbd0a2c70f3f2deea7"
+checksum = "c4f5b37a154999a8f3f98cc23a628d850e154479cd94decf3414696e12e31aaf"
 
 [[package]]
 name = "unicode-linebreak"
@@ -1673,12 +1702,6 @@ dependencies = [
  "tinyvec",
 ]
 
-[[package]]
-name = "unicode-segmentation"
-version = "1.9.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7e8820f5d777f6224dc4be3632222971ac30164d4a258d595640799554ebfd99"
-
 [[package]]
 name = "unicode-width"
 version = "0.1.9"
@@ -1706,7 +1729,7 @@ dependencies = [
 [[package]]
 name = "v_frame"
 version = "0.2.5"
-source = "git+https://github.com/xiph/rav1e#b2db4a3cc6f9bcf5b07a6668d20d5d09f3afb063"
+source = "git+https://github.com/redzic/rav1e?branch=zerocopy#6a44da2bbc929e35cbd39d6d7fb6665a62e4f031"
 dependencies = [
  "cfg-if",
  "new_debug_unreachable",
@@ -1747,18 +1770,9 @@ checksum = "accd4ea62f7bb7a82fe23066fb0957d48ef677f6eeb8215f372f52e48bb32426"
 
 [[package]]
 name = "vergen"
-version = "3.0.4"
-source = "git+https://github.com/xiph/rav1e#b2db4a3cc6f9bcf5b07a6668d20d5d09f3afb063"
-dependencies = [
- "bitflags",
- "chrono",
-]
-
-[[package]]
-name = "vergen"
-version = "7.2.1"
+version = "7.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b1f44ef1afcf5979e34748c12595f9589f3dc4e34abf156fb6d95f9b835568dc"
+checksum = "f10de320f0fe3f21913dabbfcbced6867bbe47a6b1a5db830e37df3a50279bd0"
 dependencies = [
  "anyhow",
  "cfg-if",
@@ -1768,14 +1782,14 @@ dependencies = [
  "rustc_version",
  "rustversion",
  "thiserror",
- "time 0.3.11",
+ "time 0.3.9",
 ]
 
 [[package]]
 name = "version-compare"
-version = "0.0.11"
+version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1c18c859eead79d8b95d09e4678566e8d70105c4e7b251f707a03df32442661b"
+checksum = "fe88247b92c1df6b6de80ddc290f3976dbdf2f5f5d3fd049a9fb598c6dd5ca73"
 
 [[package]]
 name = "version_check"
@@ -1797,9 +1811,9 @@ checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
 
 [[package]]
 name = "wasm-bindgen"
-version = "0.2.81"
+version = "0.2.82"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7c53b543413a17a202f4be280a7e5c62a1c69345f5de525ee64f8cfdbc954994"
+checksum = "fc7652e3f6c4706c8d9cd54832c4a4ccb9b5336e2c3bd154d5cccfbf1c1f5f7d"
 dependencies = [
  "cfg-if",
  "wasm-bindgen-macro",
@@ -1807,13 +1821,13 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-backend"
-version = "0.2.81"
+version = "0.2.82"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5491a68ab4500fa6b4d726bd67408630c3dbe9c4fe7bda16d5c82a1fd8c7340a"
+checksum = "662cd44805586bd52971b9586b1df85cdbbd9112e4ef4d8f41559c334dc6ac3f"
 dependencies = [
  "bumpalo",
- "lazy_static",
  "log",
+ "once_cell",
  "proc-macro2",
  "quote",
  "syn",
@@ -1822,9 +1836,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro"
-version = "0.2.81"
+version = "0.2.82"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c441e177922bc58f1e12c022624b6216378e5febc2f0533e41ba443d505b80aa"
+checksum = "b260f13d3012071dfb1512849c033b1925038373aea48ced3012c09df952c602"
 dependencies = [
  "quote",
  "wasm-bindgen-macro-support",
@@ -1832,9 +1846,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro-support"
-version = "0.2.81"
+version = "0.2.82"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7d94ac45fcf608c1f45ef53e748d35660f168490c10b23704c7779ab8f5c3048"
+checksum = "5be8e654bdd9b79216c2929ab90721aa82faf65c48cdf08bdc4e7f51357b80da"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1845,15 +1859,15 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-shared"
-version = "0.2.81"
+version = "0.2.82"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6a89911bd99e5f3659ec4acf9c4d93b0a90fe4a2a11f15328472058edc5261be"
+checksum = "6598dd0bd3c7d51095ff6531a5b23e02acdc81804e30d8f07afb77b7215a140a"
 
 [[package]]
 name = "web-sys"
-version = "0.3.58"
+version = "0.3.59"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2fed94beee57daf8dd7d51f2b15dc2bcde92d7a72304cdf662a4371008b71b90"
+checksum = "ed055ab27f941423197eb86b2035720b1a3ce40504df082cac2ecc6ed73335a1"
 dependencies = [
  "js-sys",
  "wasm-bindgen",
diff --git a/Cargo.toml b/Cargo.toml
index 10ab7d30..a69c112a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -33,9 +33,6 @@ vapoursynth_new_api = ["av1an-core/vapoursynth_new_api"]
 [workspace]
 members = ["av1an-core", "av1an-cli"]
 
-[profile.dev.package.av-scenechange]
-opt-level = 3
-
 [profile.release]
 lto = "thin"
 codegen-units = 1
@@ -48,5 +45,6 @@ debug-assertions = true
 overflow-checks = true
 
 [patch.crates-io]
-av-scenechange = { git = "https://github.com/rust-av/av-scenechange", rev = "4804462f2b6ae6209609cd95b5d9739264bf614f" }
+av-scenechange = { git = "https://github.com/redzic/av-scenechange", branch = "zerocopy" }
+# av-scenechange = { path = "../av-scenechange" }
 console = { git = "https://github.com/console-rs/console", rev = "5484ea9d9f6884f6685349708e27bf08fab7703c" }
diff --git a/av1an-core/Cargo.toml b/av1an-core/Cargo.toml
index eb2dabb9..ae6d3a72 100644
--- a/av1an-core/Cargo.toml
+++ b/av1an-core/Cargo.toml
@@ -87,8 +87,10 @@ quickcheck = { version = "1.0.3", default-features = false }
 quickcheck_macros = "1"
 
 [features]
+default = ["vapoursynth_new_api"]
 ffmpeg_static = ["ffmpeg/static", "ffmpeg/build"]
 vapoursynth_new_api = [
   "vapoursynth/vapoursynth-api-32",
   "vapoursynth/vsscript-api-31",
+  "av-scenechange/vapoursynth_new_api",
 ]
diff --git a/av1an-core/src/lib.rs b/av1an-core/src/lib.rs
index 7a28bd0f..25d0abdb 100644
--- a/av1an-core/src/lib.rs
+++ b/av1an-core/src/lib.rs
@@ -71,6 +71,7 @@ pub enum Input {
 
 impl Input {
   /// Returns a reference to the inner path, panicking if the input is not an `Input::Video`.
+  #[track_caller]
   pub fn as_video_path(&self) -> &Path {
     match &self {
       Input::Video(path) => path.as_ref(),
@@ -81,6 +82,7 @@ impl Input {
   }
 
   /// Returns a reference to the inner path, panicking if the input is not an `Input::VapourSynth`.
+  #[track_caller]
   pub fn as_vapoursynth_path(&self) -> &Path {
     match &self {
       Input::VapourSynth(path) => path.as_ref(),
diff --git a/av1an-core/src/scene_detect.rs b/av1an-core/src/scene_detect.rs
index ae0ea926..a8998f83 100644
--- a/av1an-core/src/scene_detect.rs
+++ b/av1an-core/src/scene_detect.rs
@@ -1,16 +1,17 @@
-use std::io::Read;
-use std::process::{Command, Stdio};
 use std::thread;
 
 use ansi_term::Style;
 use anyhow::bail;
+use av_scenechange::decode::Decoder;
+use av_scenechange::ffmpeg::FfmpegDecoder;
+use av_scenechange::vapoursynth::VapoursynthDecoder;
 use av_scenechange::{detect_scene_changes, DetectionOptions, SceneDetectionSpeed};
 use ffmpeg::format::Pixel;
 use itertools::Itertools;
-use smallvec::{smallvec, SmallVec};
+use vapoursynth::prelude::*;
 
 use crate::scenes::Scene;
-use crate::{into_smallvec, progress_bar, Encoder, Input, ScenecutMethod, Verbosity};
+use crate::{progress_bar, Encoder, Input, ScenecutMethod, Verbosity};
 
 pub fn av_scenechange_detect(
   input: &Input,
@@ -42,23 +43,63 @@ pub fn av_scenechange_detect(
     frames
   });
 
-  let scenes = scene_detect(
-    input,
-    encoder,
-    total_frames,
-    if verbosity == Verbosity::Quiet {
-      None
-    } else {
-      Some(&|frames| {
-        progress_bar::set_pos(frames as u64);
-      })
-    },
-    min_scene_len,
-    sc_pix_format,
-    sc_method,
-    sc_downscale_height,
-    zones,
-  )?;
+  let mut ff_ctx;
+  let mut ff_decoder;
+
+  let mut vs_ctx;
+  let mut vs_decoder;
+
+  let scenes = match input {
+    Input::Video(path) => {
+      ff_ctx = FfmpegDecoder::get_ctx(path).unwrap();
+      ff_decoder = FfmpegDecoder::new(&mut ff_ctx).unwrap();
+
+      scene_detect(
+        &mut ff_decoder,
+        encoder,
+        total_frames,
+        if verbosity == Verbosity::Quiet {
+          None
+        } else {
+          Some(&|frames, _| {
+            progress_bar::set_pos(frames as u64);
+          })
+        },
+        min_scene_len,
+        sc_pix_format,
+        sc_method,
+        sc_downscale_height,
+        zones,
+      )?
+    }
+    Input::VapourSynth(path) => {
+      // TODO make helper function for creating VS Environment
+      vs_ctx = Environment::new().unwrap();
+
+      // Evaluate the script.
+      vs_ctx.eval_file(path, EvalFlags::SetWorkingDir).unwrap();
+
+      vs_decoder = VapoursynthDecoder::new(&vs_ctx).unwrap();
+
+      scene_detect(
+        &mut vs_decoder,
+        encoder,
+        total_frames,
+        if verbosity == Verbosity::Quiet {
+          None
+        } else {
+          Some(&|frames, _| {
+            progress_bar::set_pos(frames as u64);
+          })
+        },
+        min_scene_len,
+        sc_pix_format,
+        sc_method,
+        sc_downscale_height,
+        zones,
+      )?
+    }
+  };
 
   let frames = frame_thread.join().unwrap();
 
@@ -69,18 +110,20 @@ pub fn av_scenechange_detect(
 
 /// Detect scene changes using rav1e scene detector.
 #[allow(clippy::option_if_let_else)]
-pub fn scene_detect(
-  input: &Input,
-  encoder: Encoder,
+pub fn scene_detect<F, D: Decoder<F>>(
+  decoder: &mut D,
+  // TODO use these fields
+  _encoder: Encoder,
   total_frames: usize,
-  callback: Option<&dyn Fn(usize)>,
+  callback: Option<&dyn Fn(usize, usize)>,
   min_scene_len: usize,
-  sc_pix_format: Option<Pixel>,
+  // TODO use these fields
+  _sc_pix_format: Option<Pixel>,
   sc_method: ScenecutMethod,
-  sc_downscale_height: Option<usize>,
+  _sc_downscale_height: Option<usize>,
   zones: &[Scene],
 ) -> anyhow::Result<Vec<Scene>> {
-  let (mut decoder, bit_depth) = build_decoder(input, encoder, sc_pix_format, sc_downscale_height)?;
+  let bit_depth = decoder.get_bit_depth();
 
   let mut scenes = Vec::new();
   let mut cur_zone = zones.first().filter(|frame| frame.start_frame == 0);
@@ -121,19 +164,19 @@ pub fn scene_detect(
     };
     let callback = callback.map(|cb| {
       |frames, _keyframes| {
-        cb(frames + frames_read);
+        cb(frames + frames_read, 0);
       }
     });
     let sc_result = if bit_depth > 8 {
-      detect_scene_changes::<_, u16>(
-        &mut decoder,
+      detect_scene_changes::<F, D, u16>(
+        decoder,
         options,
         frame_limit,
         callback.as_ref().map(|cb| cb as &dyn Fn(usize, usize)),
       )
     } else {
-      detect_scene_changes::<_, u8>(
-        &mut decoder,
+      detect_scene_changes::<F, D, u8>(
+        decoder,
         options,
         frame_limit,
         callback.as_ref().map(|cb| cb as &dyn Fn(usize, usize)),
@@ -190,75 +233,3 @@ pub fn scene_detect(
   }
   Ok(scenes)
 }
-
-fn build_decoder(
-  input: &Input,
-  encoder: Encoder,
-  sc_pix_format: Option<Pixel>,
-  sc_downscale_height: Option<usize>,
-) -> anyhow::Result<(y4m::Decoder<impl Read>, usize)> {
-  let bit_depth;
-  let filters: SmallVec<[String; 4]> = match (sc_downscale_height, sc_pix_format) {
-    (Some(sdh), Some(spf)) => into_smallvec![
-      "-vf",
-      format!(
-        "format={},scale=-2:'min({},ih)'",
-        spf.descriptor().unwrap().name(),
-        sdh
-      )
-    ],
-    (Some(sdh), None) => into_smallvec!["-vf", format!("scale=-2:'min({},ih)'", sdh)],
-    (None, Some(spf)) => into_smallvec!["-pix_fmt", spf.descriptor().unwrap().name()],
-    (None, None) => smallvec![],
-  };
-
-  let decoder = y4m::Decoder::new(match input {
-    Input::VapourSynth(path) => {
-      bit_depth = crate::vapoursynth::bit_depth(path.as_ref())?;
-      let vspipe = Command::new("vspipe")
-        .arg("-c")
-        .arg("y4m")
-        .arg(path)
-        .arg("-")
-        .stdin(Stdio::null())
-        .stdout(Stdio::piped())
-        .stderr(Stdio::null())
-        .spawn()?
-        .stdout
-        .unwrap();
-
-      if !filters.is_empty() {
-        Command::new("ffmpeg")
-          .stdin(vspipe)
-          .args(["-i", "pipe:", "-f", "yuv4mpegpipe", "-strict", "-1"])
-          .args(filters)
-          .arg("-")
-          .stdout(Stdio::piped())
-          .stderr(Stdio::null())
-          .spawn()?
-          .stdout
-          .unwrap()
-      } else {
-        vspipe
-      }
-    }
-    Input::Video(path) => {
-      let input_pix_format = crate::ffmpeg::get_pixel_format(path.as_ref())
-        .unwrap_or_else(|e| panic!("FFmpeg failed to get pixel format for input video: {:?}", e));
-      bit_depth = encoder.get_format_bit_depth(sc_pix_format.unwrap_or(input_pix_format))?;
-      Command::new("ffmpeg")
-        .args(["-r", "1", "-i"])
-        .arg(path)
-        .args(filters.as_ref())
-        .args(["-f", "yuv4mpegpipe", "-strict", "-1", "-"])
-        .stdin(Stdio::null())
-        .stdout(Stdio::piped())
-        .stderr(Stdio::null())
-        .spawn()?
-        .stdout
-        .unwrap()
-    }
-  })?;
-
-  Ok((decoder, bit_depth))
-}
diff --git a/compare.sh b/compare.sh
new file mode 100755
index 00000000..11d58c93
--- /dev/null
+++ b/compare.sh
@@ -0,0 +1,8 @@
+#!/bin/bash
+
+rm master.json zerocopy.json
+
+./target/release/av1an -i "$1" --sc-method fast --sc-only -s zerocopy.json
+/usr/bin/av1an -i "$1" --sc-method fast --sc-only -s master.json
+
+cmp master.json zerocopy.json