atracdenc/src, branch atrac3_enc_cache OpenSource ATRAC1 ATRAC3 Encoder https://code.mastervirt.ru/atracdenc/atom?h=atrac3_enc_cache 2026-06-25T21:48:15Z Add BFU encode cache and use it in ATRAC3 bit allocation 2026-06-25T21:48:15Z Daniil Cherednik dan.cherednik@gmail.com 2026-06-25T21:48:15Z urn:sha1:bd270db9f2efca6d71959f1e60bc4f3a6867a03a Introduce a generic TEncCache/TUnit library (src/atrac/atrac_enc_cache.*) that memoizes per-unit quantization results keyed by a user-supplied function. Units are owned via unique_ptr in a flat vector pre-sized to a known key bound; the codec supplies both the unit factory (which also performs the computation, avoiding an extra virtual call on the hot path) and the key packing. Wire it into the ATRAC3 allocator: during the lambda binary search the same (bfu, wordlen) block is quantized repeatedly. TAt3SpecUnit now caches the mantissas plus the CLC/VLC spectrum costs and energy error, so each (bfu, wordlen) is computed once per channel. The cache is reset in TAlloc::Dump (once per channel) so no stale spectrum is reused. Output is bit-exact with the previous encoder; ~36% faster encode. Add explicit container selection 2026-05-26T19:32:54Z Daniil Cherednik dan.cherednik@gmail.com 2026-05-26T19:32:54Z urn:sha1:01234b09a2fb3e7fc6746ace7554383b0caa97e1 Add raw output format for ATRAC1/ATRAC3/ATRAC3plus 2026-05-25T07:33:50Z Daniil Cherednik dan.cherednik@gmail.com 2026-05-23T08:04:15Z urn:sha1:5a97fec0876fb6052996311498ea5bd707049c69 Output files with .raw or .dat extensions now write raw frames with no container header. [AT3P] Add ATRAC3plus RIFF output (#74) 2026-05-12T20:45:06Z Daniil Cherednik dan.cherednik@gmail.com 2026-05-12T20:45:06Z urn:sha1:746602d5eb6984b2a3e9927094f8bc1e67e1ecf3 Use gain energy scale for ATRAC3 allocation 2026-05-08T22:12:48Z Daniil Cherednik dan.cherednik@gmail.com 2026-05-08T22:12:48Z urn:sha1:a57dab0fa16bb48972405ca861f6bfd7059b80b8 atrac3: fix JS gain analysis domain. The regression was added in 16e7ec8 2026-05-07T21:37:07Z Daniil Cherednik dan.cherednik@gmail.com 2026-05-07T21:23:17Z urn:sha1:e6148b4cf5b969f0fc2ef8c23c70bfd913dffb9c atrac3: tune bit allocation. Reduce low frequency distortion 2026-05-03T21:39:18Z Daniil Cherednik dan.cherednik@gmail.com 2026-05-03T21:39:18Z urn:sha1:f23acf505e6b81d00f45a5548eda433ff0e30927 Multiple fixes related to IO path(#72) 2026-05-03T19:22:01Z Daniil Cherednik dan.cherednik@gmail.com 2026-05-03T19:22:01Z urn:sha1:744364f30314bf85725803b1016e66957b772f49 * Fix UTF-8 input and output paths for Windows * Fix wrong message in case of missed input file * Add test Add MSYS2 build support (#70) 2026-05-03T12:41:21Z Daniil Cherednik dan.cherednik@gmail.com 2026-05-03T12:41:21Z urn:sha1:3e04903c35c61a0f0be0c2db409f5fd5f58d6e12 * Add MSYS2 build support Add a selectable PCM I/O backend so MSVC builds can keep Media Foundation while MSYS2/MinGW builds use libsndfile. Teach the libsndfile finder about MINGW_PREFIX and add a Windows MSYS2 CI job that builds the libsndfile backend. Fix and enable tests for MSYS2 builds Fix mono AT3 RIFF channel count. issues/67 2026-05-02T21:42:38Z Daniil Cherednik dan.cherednik@gmail.com 2026-05-02T21:40:10Z urn:sha1:93e92ee09faa942eefa997e244a7e7b519a51119 AT3 RIFF output always stores a two-channel ATRAC3 stream. Mono input is encoded as duplicated single channels or as joint stereo with an empty side channel.