a

7 files changed, 318 insertions, 131 deletions

diff --git a/evc/Cargo.lock b/evc/Cargo.lock
index ee6d574..727d55e 100644
--- a/evc/Cargo.lock
+++ b/evc/Cargo.lock
@@ -4,18 +4,18 @@ version = 3
 
 [[package]]
 name = "aho-corasick"
-version = "0.7.20"
+version = "1.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cc936419f96fa211c1b9166887b38e5e40b19958e5b895be7c1f93adec7071ac"
+checksum = "b2969dcb958b36655471fc61f7e416fa76033bdd4bfed0678d8fee1e2d07a1f0"
 dependencies = [
  "memchr",
 ]
 
 [[package]]
 name = "anyhow"
-version = "1.0.66"
+version = "1.0.75"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "216261ddc8289130e551ddcd5ce8a064710c0d064a4d2895c67151c92b5443f6"
+checksum = "a4668cab20f66d8d020e1fbc0ebe47217433c1b6c8f2040faf858554e394ace6"
 
 [[package]]
 name = "autocfg"
@@ -30,10 +30,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
 [[package]]
-name = "cc"
-version = "1.0.77"
+name = "bitflags"
+version = "2.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e9f73505338f7d905b19d18738976aae232eb46b8efc15554ffc56deb5d9ebe4"
+checksum = "327762f6e5a765692301e5bb513e0d9fef63be86bbc14528052b1cd3e6f03e07"
 
 [[package]]
 name = "cfg-if"
@@ -47,7 +47,7 @@ version = "4.0.29"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4d63b9e9c07271b9957ad22c173bae2a4d9a81127680962039296abcd2f8251d"
 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
  "clap_derive",
  "clap_lex",
  "is-terminal",
@@ -88,17 +88,7 @@ dependencies = [
  "lazy_static",
  "libc",
  "unicode-width",
- "windows-sys",
-]
-
-[[package]]
-name = "crossbeam-channel"
-version = "0.5.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cf2b3e8478797446514c91ef04bafcb59faba183e621ad488df88983cc14128c"
-dependencies = [
- "cfg-if",
- "crossbeam-utils",
+ "windows-sys 0.42.0",
 ]
 
 [[package]]
@@ -114,9 +104,9 @@ dependencies = [
 
 [[package]]
 name = "crossbeam-epoch"
-version = "0.9.14"
+version = "0.9.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "46bd5f3f85273295a9d14aedfb86f6aadbff6d8f5295c4a9edb08e819dcf5695"
+checksum = "ae211234986c545741a7dc064309f67ee1e5ad243d0e48335adc0484d960bcc7"
 dependencies = [
  "autocfg",
  "cfg-if",
@@ -127,18 +117,18 @@ dependencies = [
 
 [[package]]
 name = "crossbeam-utils"
-version = "0.8.15"
+version = "0.8.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3c063cd8cc95f5c377ed0d4b49a4b21f632396ff690e8470c29b3359b346984b"
+checksum = "5a22b2d63d4d1dc0b7f1b6b2747dd0088008a9be28b6ddf0b1e7d335e3037294"
 dependencies = [
  "cfg-if",
 ]
 
 [[package]]
 name = "either"
-version = "1.8.1"
+version = "1.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7fcaabb2fef8c910e7f4c7ce9f67a1283a1715879a7c230ca9d6d1ae31f16d91"
+checksum = "a26ae43d7bcc3b814de94796a5e736d4029efb0ee900c12e2d54c993ad1a1e07"
 
 [[package]]
 name = "encode_unicode"
@@ -148,9 +138,9 @@ checksum = "a357d28ed41a50f9c765dbfe56cbc04a64e53e5fc58ba79fbc34c10ef3df831f"
 
 [[package]]
 name = "env_logger"
-version = "0.10.0"
+version = "0.10.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "85cdab6a89accf66733ad5a1693a4dcced6aeff64602b634530dd73c1f3ee9f0"
+checksum = "95b3f3e67048839cb0d0781f445682a35113da7121f7c949db0e2be96a4fbece"
 dependencies = [
  "humantime",
  "is-terminal",
@@ -161,23 +151,12 @@ dependencies = [
 
 [[package]]
 name = "errno"
-version = "0.2.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f639046355ee4f37944e44f60642c6f3a7efa3cf6b78c78a0d989a8ce6c396a1"
-dependencies = [
- "errno-dragonfly",
- "libc",
- "winapi",
-]
-
-[[package]]
-name = "errno-dragonfly"
-version = "0.1.2"
+version = "0.3.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "aa68f1b12764fab894d2755d2518754e71b4fd80ecfb822714a1206c2aab39bf"
+checksum = "7c18ee0ed65a5f1f81cac6b1d213b69c35fa47d4252ad41f1486dbd8226fe36e"
 dependencies = [
- "cc",
  "libc",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]
@@ -188,12 +167,9 @@ checksum = "2540771e65fc8cb83cd6e8a237f70c319bd5c29f78ed1084ba5d50eeac86f7f9"
 
 [[package]]
 name = "hermit-abi"
-version = "0.2.6"
+version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ee512640fe35acbfb4bb779db6f0d80704c2cacfa2e39b601ef3e3f47d1ae4c7"
-dependencies = [
- "libc",
-]
+checksum = "d77f7ec81a6d05a3abb01ab6eb7590f6083d08449fe5a1c8b1e620283546ccb7"
 
 [[package]]
 name = "humantime"
@@ -214,25 +190,14 @@ dependencies = [
 ]
 
 [[package]]
-name = "io-lifetimes"
-version = "1.0.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "46112a93252b123d31a119a8d1a1ac19deac4fac6e0e8b0df58f0d4e5870e63c"
-dependencies = [
- "libc",
- "windows-sys",
-]
-
-[[package]]
 name = "is-terminal"
-version = "0.4.1"
+version = "0.4.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "927609f78c2913a6f6ac3c27a4fe87f43e2a35367c0c4b0f8265e8f49a104330"
+checksum = "cb0889898416213fab133e1d33a0e5858a48177452750691bde3666d0fdbaf8b"
 dependencies = [
  "hermit-abi",
- "io-lifetimes",
  "rustix",
- "windows-sys",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]
@@ -243,9 +208,9 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "libc"
-version = "0.2.138"
+version = "0.2.150"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "db6d7e329c562c5dfab7a46a2afabc8b987ab9a4834c9d1ca04dc54c1546cef8"
+checksum = "89d92a4743f9a61002fae18374ed11e7973f530cb3a3255fb354818118b2203c"
 
 [[package]]
 name = "libreschmux"
@@ -256,36 +221,34 @@ dependencies = [
  "env_logger",
  "indicatif",
  "log",
+ "proc-macro2",
  "rayon",
  "rustdct",
 ]
 
 [[package]]
 name = "linux-raw-sys"
-version = "0.1.3"
+version = "0.4.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8f9f08d8963a6c613f4b1a78f4f4a4dbfadf8e6545b2d72861731e4858b8b47f"
+checksum = "969488b55f8ac402214f3f5fd243ebb7206cf82de60d3172994707a4bcc2b829"
 
 [[package]]
 name = "log"
-version = "0.4.17"
+version = "0.4.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "abb12e687cfb44aa40f41fc3978ef76448f9b6038cad6aef4259d3c095a2382e"
-dependencies = [
- "cfg-if",
-]
+checksum = "b5e6163cb8c49088c2c36f57875e58ccd8c87c7427f7fbd50ea6710b2f3f2e8f"
 
 [[package]]
 name = "memchr"
-version = "2.5.0"
+version = "2.6.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2dffe52ecf27772e601905b7522cb4ef790d2cc203488bbd0e2fe85fcb74566d"
+checksum = "f665ee40bc4a3c5590afb1e9677db74a508659dfd71e126420da8274909a0167"
 
 [[package]]
 name = "memoffset"
-version = "0.8.0"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d61c719bcfbcf5d62b3a09efa6088de8c54bc0bfcd3ea7ae39fcc186108b8de1"
+checksum = "5a634b1c61a95585bd15607c6ab0c4e5b226e695ff2800ba0cdccddf208c406c"
 dependencies = [
  "autocfg",
 ]
@@ -319,16 +282,6 @@ dependencies = [
 ]
 
 [[package]]
-name = "num_cpus"
-version = "1.15.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0fac9e2da13b5eb447a6ce3d392f23a29d8694bff781bf03a16cd9ac8697593b"
-dependencies = [
- "hermit-abi",
- "libc",
-]
-
-[[package]]
 name = "number_prefix"
 version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -387,9 +340,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.47"
+version = "1.0.69"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5ea3d908b0e36316caf9e9e2c4625cdde190a7e6f440d794667ed17a1855e725"
+checksum = "134c189feb4956b20f6f547d2cf727d4c0fe06722b20a0eec87ed445a97f92da"
 dependencies = [
  "unicode-ident",
 ]
@@ -405,9 +358,9 @@ dependencies = [
 
 [[package]]
 name = "rayon"
-version = "1.7.0"
+version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1d2df5196e37bcc87abebc0053e20787d73847bb33134a69841207dd0a47f03b"
+checksum = "9c27db03db7734835b3f53954b534c91069375ce6ccaa2e065441e07d9b6cdb1"
 dependencies = [
  "either",
  "rayon-core",
@@ -415,21 +368,31 @@ dependencies = [
 
 [[package]]
 name = "rayon-core"
-version = "1.11.0"
+version = "1.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4b8f95bd6966f5c87776639160a66bd8ab9895d9d4ab01ddba9fc60661aebe8d"
+checksum = "5ce3fb6ad83f861aac485e76e1985cd109d9a3713802152be56c3b1f0e0658ed"
 dependencies = [
- "crossbeam-channel",
  "crossbeam-deque",
  "crossbeam-utils",
- "num_cpus",
 ]
 
 [[package]]
 name = "regex"
-version = "1.7.0"
+version = "1.10.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e076559ef8e241f2ae3479e36f97bd5741c0330689e217ad51ce2c76808b868a"
+checksum = "380b951a9c5e80ddfd6136919eef32310721aa4aacd4889a8d39124b026ab343"
+dependencies = [
+ "aho-corasick",
+ "memchr",
+ "regex-automata",
+ "regex-syntax",
+]
+
+[[package]]
+name = "regex-automata"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5f804c7828047e88b2d32e2d7fe5a105da8ee3264f01902f796c8e067dc2483f"
 dependencies = [
  "aho-corasick",
  "memchr",
@@ -438,9 +401,9 @@ dependencies = [
 
 [[package]]
 name = "regex-syntax"
-version = "0.6.28"
+version = "0.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "456c603be3e8d448b072f410900c09faf164fbce2d480456f50eea6e25f9c848"
+checksum = "c08c74e62047bb2de4ff487b251e4a92e24f48745648451635cec7d591162d9f"
 
 [[package]]
 name = "rustdct"
@@ -468,23 +431,22 @@ dependencies = [
 
 [[package]]
 name = "rustix"
-version = "0.36.5"
+version = "0.38.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a3807b5d10909833d3e9acd1eb5fb988f79376ff10fce42937de71a449c4c588"
+checksum = "2b426b0506e5d50a7d8dafcf2e81471400deb602392c7dd110815afb4eaf02a3"
 dependencies = [
- "bitflags",
+ "bitflags 2.4.1",
  "errno",
- "io-lifetimes",
  "libc",
  "linux-raw-sys",
- "windows-sys",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]
 name = "scopeguard"
-version = "1.1.0"
+version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
+checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
 
 [[package]]
 name = "strength_reduce"
@@ -511,9 +473,9 @@ dependencies = [
 
 [[package]]
 name = "termcolor"
-version = "1.1.3"
+version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bab24d30b911b2376f3a13cc2cd443142f0c81dda04c118693e35b3835757755"
+checksum = "ff1bc3d3f05aff0403e8ac0d92ced918ec05b666a43f83297ccef5bea8a3d449"
 dependencies = [
  "winapi-util",
 ]
@@ -564,9 +526,9 @@ checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
 
 [[package]]
 name = "winapi-util"
-version = "0.1.5"
+version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "70ec6ce85bb158151cae5e5c87f95a8e97d2c0c4b001223f33a334e3ce5de178"
+checksum = "f29e6f9198ba0d26b4c9f07dbe6f9ed633e1f3d5b8b414090084349e46a52596"
 dependencies = [
  "winapi",
 ]
@@ -583,53 +545,119 @@ version = "0.42.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5a3e1820f08b8513f676f7ab6c1f99ff312fb97b553d30ff4dd86f9f15728aa7"
 dependencies = [
- "windows_aarch64_gnullvm",
- "windows_aarch64_msvc",
- "windows_i686_gnu",
- "windows_i686_msvc",
- "windows_x86_64_gnu",
- "windows_x86_64_gnullvm",
- "windows_x86_64_msvc",
+ "windows_aarch64_gnullvm 0.42.2",
+ "windows_aarch64_msvc 0.42.2",
+ "windows_i686_gnu 0.42.2",
+ "windows_i686_msvc 0.42.2",
+ "windows_x86_64_gnu 0.42.2",
+ "windows_x86_64_gnullvm 0.42.2",
+ "windows_x86_64_msvc 0.42.2",
+]
+
+[[package]]
+name = "windows-sys"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "677d2418bec65e3338edb076e806bc1ec15693c5d0104683f2efe857f61056a9"
+dependencies = [
+ "windows-targets",
+]
+
+[[package]]
+name = "windows-targets"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9a2fa6e2155d7247be68c096456083145c183cbbbc2764150dda45a87197940c"
+dependencies = [
+ "windows_aarch64_gnullvm 0.48.5",
+ "windows_aarch64_msvc 0.48.5",
+ "windows_i686_gnu 0.48.5",
+ "windows_i686_msvc 0.48.5",
+ "windows_x86_64_gnu 0.48.5",
+ "windows_x86_64_gnullvm 0.48.5",
+ "windows_x86_64_msvc 0.48.5",
 ]
 
 [[package]]
 name = "windows_aarch64_gnullvm"
-version = "0.42.0"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "597a5118570b68bc08d8d59125332c54f1ba9d9adeedeef5b99b02ba2b0698f8"
+
+[[package]]
+name = "windows_aarch64_gnullvm"
+version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "41d2aa71f6f0cbe00ae5167d90ef3cfe66527d6f613ca78ac8024c3ccab9a19e"
+checksum = "2b38e32f0abccf9987a4e3079dfb67dcd799fb61361e53e2882c3cbaf0d905d8"
 
 [[package]]
 name = "windows_aarch64_msvc"
-version = "0.42.0"
+version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dd0f252f5a35cac83d6311b2e795981f5ee6e67eb1f9a7f64eb4500fbc4dcdb4"
+checksum = "e08e8864a60f06ef0d0ff4ba04124db8b0fb3be5776a5cd47641e942e58c4d43"
+
+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dc35310971f3b2dbbf3f0690a219f40e2d9afcf64f9ab7cc1be722937c26b4bc"
 
 [[package]]
 name = "windows_i686_gnu"
-version = "0.42.0"
+version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fbeae19f6716841636c28d695375df17562ca208b2b7d0dc47635a50ae6c5de7"
+checksum = "c61d927d8da41da96a81f029489353e68739737d3beca43145c8afec9a31a84f"
+
+[[package]]
+name = "windows_i686_gnu"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a75915e7def60c94dcef72200b9a8e58e5091744960da64ec734a6c6e9b3743e"
 
 [[package]]
 name = "windows_i686_msvc"
-version = "0.42.0"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "44d840b6ec649f480a41c8d80f9c65108b92d89345dd94027bfe06ac444d1060"
+
+[[package]]
+name = "windows_i686_msvc"
+version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "84c12f65daa39dd2babe6e442988fc329d6243fdce47d7d2d155b8d874862246"
+checksum = "8f55c233f70c4b27f66c523580f78f1004e8b5a8b659e05a4eb49d4166cca406"
 
 [[package]]
 name = "windows_x86_64_gnu"
-version = "0.42.0"
+version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bf7b1b21b5362cbc318f686150e5bcea75ecedc74dd157d874d754a2ca44b0ed"
+checksum = "8de912b8b8feb55c064867cf047dda097f92d51efad5b491dfb98f6bbb70cb36"
+
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "53d40abd2583d23e4718fddf1ebec84dbff8381c07cae67ff7768bbf19c6718e"
 
 [[package]]
 name = "windows_x86_64_gnullvm"
-version = "0.42.0"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "26d41b46a36d453748aedef1486d5c7a85db22e56aff34643984ea85514e94a3"
+
+[[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "09d525d2ba30eeb3297665bd434a54297e4170c7f1a44cad4ef58095b4cd2028"
+checksum = "0b7b52767868a23d5bab768e390dc5f5c55825b6d30b86c844ff2dc7414044cc"
 
 [[package]]
 name = "windows_x86_64_msvc"
-version = "0.42.0"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9aec5da331524158c6d1a4ac0ab1541149c0b9505fde06423b02f5ef0106b9f0"
+
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f40009d85759725a34da6d89a94e63d7bdc50a862acf0dbc7c8e488f1edcb6f5"
+checksum = "ed94fce61571a4006852b7389a063ab983c02eb1bb37b47f8272ce92d06d9538"
diff --git a/evc/Cargo.toml b/evc/Cargo.toml
index ceed3a6..dbfc725 100644
--- a/evc/Cargo.toml
+++ b/evc/Cargo.toml
@@ -5,12 +5,13 @@ edition = "2021"
     
 [dependencies]
 clap = { version = "*", features = ["derive"] }
-anyhow = "1.0.66"
-log = "0.4.17"
-rayon = "1.7.0"
-env_logger = "0.10.0"
+anyhow = "1.0.75"
+log = "0.4.20"
+rayon = "1.8.0"
+env_logger = "0.10.1"
 rustdct = "0.7.1"
 indicatif = "*"
+proc-macro2 = "1.0.69"
 
 [[bin]]
 path = "src/bin/encode.rs"
diff --git a/tweak/.gitignore b/tweak/.gitignore
new file mode 100644
index 0000000..c41cc9e
--- /dev/null
+++ b/tweak/.gitignore
@@ -0,0 +1 @@
+/target
\ No newline at end of file
diff --git a/tweak/Cargo.lock b/tweak/Cargo.lock
new file mode 100644
index 0000000..7f45493
--- /dev/null
+++ b/tweak/Cargo.lock
@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "tweak"
+version = "0.1.0"
diff --git a/tweak/Cargo.toml b/tweak/Cargo.toml
new file mode 100644
index 0000000..813497e
--- /dev/null
+++ b/tweak/Cargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "tweak"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
diff --git a/tweak/src/main.rs b/tweak/src/main.rs
new file mode 100644
index 0000000..a46d561
--- /dev/null
+++ b/tweak/src/main.rs
@@ -0,0 +1,138 @@
+use std::{
+    io::{stdin, stdout, Read, Write},
+    ops::Index,
+};
+
+const WIDTH: usize = 1920;
+const HEIGHT: usize = 1080;
+
+fn main() {
+    let mut oframe = Frame::new();
+    loop {
+        let iframe = Frame::read(stdin());
+
+        // let diff = oframe.average_area_diff(&iframe, Area::root());
+        // eprintln!("{diff:?}");
+
+        oframe.apply_area_diff(Area::root(), diff);
+
+        oframe.write(stdout());
+        // oframe = iframe;
+    }
+}
+
+pub fn decode(f: &mut Frame, area: Area, tree: DiffTree) {
+    oframe.apply_area_diff(Area::root(), diff);
+
+} 
+
+pub enum DiffTree {
+    Split([Box<DiffTree>; 2]),
+    Diff(PixelDiff),
+}
+
+pub fn stuff(a: &Frame, b: &Frame, area: Area) -> DiffTree {
+    if area.area() == 1 {
+        DiffTree::Diff(Frame::diff_pixel(a, b, area.x1, area.y1))
+    } else {
+        let (aa, ba) = area.split();
+        let (at, bt) = (stuff(a, b, aa), stuff(a, b, ba));
+        DiffTree::Split([Box::new(at), Box::new(bt)])
+    }
+}
+
+#[derive(Debug)]
+pub struct Frame(Vec<u8>);
+#[derive(Debug)]
+pub struct PixelDiff([i8; 3]);
+#[derive(Debug, Clone, Copy)]
+pub struct Area {
+    x1: usize,
+    y1: usize,
+    x2: usize,
+    y2: usize,
+}
+
+impl Frame {
+    pub fn new() -> Self {
+        Self(vec![0u8; WIDTH * HEIGHT * 3])
+    }
+    pub fn read(mut r: impl Read) -> Self {
+        let mut f = Frame::new();
+        r.read_exact(&mut f.0).unwrap();
+        f
+    }
+    pub fn write(&self, mut w: impl Write) {
+        w.write_all(&self.0).unwrap()
+    }
+
+    pub fn diff_pixel(a: &Frame, b: &Frame, x: usize, y: usize) -> PixelDiff {
+        let o = (x + y * WIDTH) * 3;
+        PixelDiff([
+            (a.0[o + 0] as i16 - b.0[o + 0] as i16).clamp(i8::MIN as i16, i8::MAX as i16) as i8,
+            (a.0[o + 1] as i16 - b.0[o + 1] as i16).clamp(i8::MIN as i16, i8::MAX as i16) as i8,
+            (a.0[o + 2] as i16 - b.0[o + 2] as i16).clamp(i8::MIN as i16, i8::MAX as i16) as i8,
+        ])
+    }
+
+    pub fn apply_area_diff(&mut self, Area { x1, y1, x2, y2 }: Area, p: PixelDiff) {
+        for x in x1..x2 {
+            for y in y1..y2 {
+                let o = (x + y * WIDTH) * 3;
+                self.0[o + 0] = self.0[o + 0].saturating_add_signed(p.0[0]);
+                self.0[o + 1] = self.0[o + 1].saturating_add_signed(p.0[1]);
+                self.0[o + 2] = self.0[o + 2].saturating_add_signed(p.0[2]);
+            }
+        }
+    }
+    pub fn average_area_diff(
+        &self,
+        other: &Frame,
+        area @ Area { x1, y1, x2, y2 }: Area,
+    ) -> PixelDiff {
+        let (mut r, mut g, mut b) = (0i32, 0i32, 0i32);
+        for x in x1..x2 {
+            for y in y1..y2 {
+                let o = (x + y * WIDTH) * 3;
+                r += other.0[o + 0] as i32 - self.0[o + 0] as i32;
+                g += other.0[o + 1] as i32 - self.0[o + 1] as i32;
+                b += other.0[o + 2] as i32 - self.0[o + 2] as i32;
+            }
+        }
+        let a = area.area() as i32;
+        PixelDiff([
+            (r / a).clamp(i8::MIN as i32, i8::MAX as i32) as i8,
+            (g / a).clamp(i8::MIN as i32, i8::MAX as i32) as i8,
+            (b / a).clamp(i8::MIN as i32, i8::MAX as i32) as i8,
+        ])
+    }
+}
+impl Area {
+    pub fn area(&self) -> usize {
+        self.width() as usize * self.height() as usize
+    }
+    pub fn width(&self) -> usize {
+        self.x2 - self.x1
+    }
+    pub fn height(&self) -> usize {
+        self.y2 - self.y1
+    }
+    pub fn root() -> Self {
+        Area {
+            x1: 0,
+            y1: 0,
+            x2: WIDTH,
+            y2: HEIGHT,
+        }
+    }
+    pub fn split(&self) -> (Self, Self) {
+        let Area { x1, y1, x2, y2 } = *self;
+        if self.width() > self.height() {
+            let xm = (self.x1 + self.x2) / 2;
+            (Self { x1, x2: xm, y1, y2 }, Self { x1: xm, x2, y1, y2 })
+        } else {
+            let ym = (self.y1 + self.y2) / 2;
+            (Self { x1, x2, y1, y2: ym }, Self { x1, x2, y1: ym, y2 })
+        }
+    }
+}
diff --git a/tweak/test b/tweak/test
new file mode 100755
index 0000000..4bfc7d8
--- /dev/null
+++ b/tweak/test
@@ -0,0 +1,4 @@
+#!/bin/fish
+ffmpeg -loglevel quiet -i $argv[1] -vf 'scale=1920x1080,format=rgb24' -f rawvideo pipe:1 \
+    | cargo run --release \
+    | ffplay -loglevel quiet -video_size 1920x1080 -pixel_format rgb24 -f rawvideo pipe:0