85975d6cc3
optimise hot-path audio pipeline: zero-copy ring buffer, pre-allocated converter buffers
...
- Replace Swift Array<UInt8> ring buffer with UnsafeMutableRawPointer to
eliminate COW ref-count checks on every write/read
- Add append(from:count:) to copy directly from Core Audio buffer pointer
into the ring buffer, removing the per-callback Data heap allocation
- Pre-allocate AVAudioPCMBuffer pair in AudioFormatConverter and reuse
across transform() calls (lazy init, capacity-checked)
- Fix float-to-int truncation in output frame count calculation (ceil)
- Add comprehensive AudioBuffer test suite (12 tests) including proper
wrap-around coverage for both append and read paths
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com >
2026-03-06 21:32:42 +00:00
08f0bc8f6c
library improvements
2026-02-25 20:26:39 +00:00
c4cf27553a
Merge branch 'main' into lib-split-cli
2026-02-25 16:14:04 +00:00
0b1ba5c8cd
Add --flush option to reduce stdout buffering latency
2026-01-24 10:36:58 -06:00
b7455d26d1
potential split between CLI and core library
2025-08-19 08:51:14 +01:00
a311cc583f
simplify recorder
2025-08-12 13:37:39 +01:00
c9d11316ff
add stereo recording option
2025-08-10 19:17:08 +02:00
71b0c45a5c
minor tidyup
2025-07-29 10:14:49 +01:00
d260c7824d
swift format
2025-07-29 07:04:57 +01:00
ac0ae46cfa
update readme
2025-07-27 10:06:01 +01:00
8c3ee0f4e7
fix build error
2025-07-27 09:55:33 +01:00
abaa019bd2
only write PCM to stdout
2025-07-27 09:53:26 +01:00
ee8968e2d6
no need for buffer overflow error
2025-07-12 13:45:25 +01:00
4bc36019c2
get rid of O(n) ops on hot audio packet path
2025-07-10 20:43:17 +01:00
1b537eb395
use ring buffer to avoid memory leak
2025-07-10 14:08:52 +01:00
c696fa0197
Merge branch 'main' into readiness-test
2025-07-04 08:53:17 +01:00
a0902f6eec
remove swift-argument-parser - it was adding well over 1Mb of bloat to release builds
2025-07-02 20:58:28 +01:00
b7ce5e61d8
Merge branch 'main' into readiness-test
2025-07-02 16:48:35 +01:00
d10f16a119
if a sample rate conversion is requested, always honour it
2025-07-02 16:48:28 +01:00
a7be157d06
attempt to wait for device readiness
2025-07-02 16:13:38 +01:00
fcbf9b0097
rename --convert-to to --sample-rate
2025-06-17 16:53:55 +01:00
0f550157ae
more logical CLI options
2025-06-17 16:48:45 +01:00
169fe595a6
rename AudioPacketMetadata to BinaryPacketHeader
2025-06-17 10:52:09 +01:00
4a8bc657e3
AudioTee Swift CLI repo
2025-06-16 20:30:15 +01:00
Nick Payne