arancormonk
836da1f556
rtl_sdr_fm: fix USB callback - avoid extra copy when enqueuing into input ring.
2025-09-04 09:48:17 -04:00
arancormonk
dd8620bc39
rtl_sdr_fm: remove per-sample memmove from resampler, use ring buffer.
2025-09-04 09:34:09 -04:00
arancormonk
283d000b59
rtl_sdr_fm: fix critical correctness bug: +1 DC bias in rotate+widen paths
2025-09-04 09:27:59 -04:00
arancormonk
5834127ff7
rtl_sdr_fm: fix rotate+widen tail handling (scalar/AVX2/NEON) to preserve 90° rotation and add SSSE3 rotate+widen with runtime dispatch on x86. Also include tmmintrin and clarify SSE2 fallback comment.
2025-09-03 23:33:32 -04:00
arancormonk
2ce089ccf8
rtl_sdr_fm: make SIMD runtime dispatch thread-safe with pthread_once and ensure AVX2/SSE2 paths compile by relying on function-level target attributes (remove AVX2/SSE2 guards). Gate NEON rotate to AArch64 (ARMv7 falls back to scalar) while retaining NEON widen for portability and performance.
2025-09-03 23:21:37 -04:00
arancormonk
4e64ef1c11
rtl_sdr_fm: add runtime SIMD dispatch for widen/rotate paths, selecting AVX2/SSE2/NEON via CPUID/XGETBV (x86) or getauxval (ARM) with scalar fallbacks. Replace compile-time guards with lazy-initialized function-pointer wrappers so binaries run optimally across CPUs without changing call sites.
2025-09-03 23:06:55 -04:00
arancormonk
c764cf0eda
rtl_sdr_fm: replace USB→demod double-buffer/condvar handoff with a lock-free SPSC ring; enqueue widened blocks and drop oldest on overflow to keep the callback non-blocking. Demod now reads ring blocks; ring is initialized/cleaned up, reducing wakeups and latency.
2025-09-03 22:45:18 -04:00
arancormonk
8b4fa81711
rtl_sdr_fm: consume HB cascade output in-place to avoid the final memcpy. Track the current buffer and assign lowpassed to the last stage’s output, preserving correctness while reducing memory traffic.
2025-09-03 22:38:50 -04:00
arancormonk
106aae1814
rtl_sdr_fm: fuse interleaved complex half-band decimation to avoid deinterleave/reinterleave in full_demod, reducing memory traffic and copies. Maintain per‑stage histories and equivalent output while improving throughput.
2025-09-03 22:35:34 -04:00
arancormonk
391048a45a
rtl_sdr_fm: vectorize rotate+widen path: add AVX2/NEON implementations for widen_rotate90_u8_to_s16_bias127 with scalar tail fallback. This applies the 90° rotation and bias-127 widening in vectors to reduce callback CPU without changing behavior.
2025-09-03 22:23:05 -04:00
arancormonk
1b9c3aa659
rtl_sdr_fm: add residual-CFO FLL and optional Gardner timing correction before discriminator (TED disabled by default and applied only to non-FM unless forced), with linear interpolation, nominal 1/sps advance, and env-tunable gains.
2025-09-03 22:18:20 -04:00
arancormonk
e9b12b8bc6
rtl_sdr_fm: add polyphase rational resampler (L/M) enabled by default at 48 kHz (override via DSD_FME_RESAMP), integrate post-demod and update output.rate while keeping legacy upsampler as fallback. Implement tap design with L-phase gain compensation.
2025-09-03 22:02:19 -04:00
arancormonk
9e9ae95219
rtl_sdr_fm: use fast atan2 discriminator for analog mode to reduce quantization noise
2025-09-03 21:33:04 -04:00
arancormonk
86d91512bb
rtl_sdr_fm: add AVX2 widening, optional combined rotate+widen, and fixed‑point linear upsampler with env flags; preserve legacy behavior by default. Fix decoding by matching legacy upsample length (NM) with tail fill and reproducing unsigned rotate semantics.
2025-09-03 21:20:41 -04:00
arancormonk
0b00832b1f
rtl_sdr_fm: enable env-gated intra-block multithreading with a tiny 2-thread pool and preallocated buffers. Parallelize HB I/Q decimation and linear upsampler; add debug log when enabled.
2025-09-03 20:52:06 -04:00
arancormonk
2655fccdea
rtl_sdr_fm: ring signaling and atomic annotations
2025-09-03 20:30:32 -04:00
arancormonk
ac8f17bf20
rtl_sdr_fm: guard and document bandwidth_multiplier behavior
2025-09-03 20:23:52 -04:00
arancormonk
0cb38d2c25
rtl_sdr_fm: SIMD optimize USB byte→int16 widening in callback
2025-09-03 20:20:43 -04:00
arancormonk
6fc327c3b6
rtl_sdr_fm: avoid sqrt in RMS utility (use power-domain)
2025-09-03 20:15:27 -04:00
arancormonk
00e7c51a21
rtl_sdr_fm: add a light post-demod audio low-pass filter
2025-09-03 19:19:25 -04:00
arancormonk
e2402d0328
rtl_sdr_fm: correct deemphasis coefficient derivation and make it configurable
2025-09-03 19:08:22 -04:00
arancormonk
402cef34a9
rtl_sdr_fm: improve decimation filters (half-band FIR cascade)
2025-09-03 18:53:44 -04:00
arancormonk
29be104345
rtl_sdr_fm: replace sample duplication with simple resampling (linear interpolation)
2025-09-03 18:30:38 -04:00
arancormonk
f3ec024000
rtl_sdr_fm: replace DC block with leaky integrator high-pass (IIR)
2025-09-03 18:18:00 -04:00
arancormonk
412a4dc3b1
rtl_sdr_fm: add saturating arithmetic for decimation and volume scaling
2025-09-03 18:05:28 -04:00
arancormonk
2eedcc125b
rtl_sdr_fm: fix deemphasis state race
2025-09-03 18:01:06 -04:00
arancormonk
9b399f31da
rtl_sdr_fm: enable vectorization and alignment for DSP arrays
2025-09-03 16:25:15 -04:00
arancormonk
2ec3f9a263
rtl_sdr_fm: hoist divisions and use integer scalers in hot loops
2025-09-03 16:14:26 -04:00
arancormonk
0decc5934c
rtl_sdr_fm: add batch operations and thread scheduling
2025-09-03 15:58:33 -04:00
arancormonk
7dd9cd7566
rtl_sdr_fm: add batched consumer API
2025-09-03 15:51:45 -04:00
arancormonk
30766b34bd
rtl_sdr_fm: fix timespec normalization in timed wait
2025-09-03 15:21:50 -04:00
arancormonk
e700e418be
rtl_sdr_fm: make RMS squelch incremental and decimated
2025-09-03 15:17:07 -04:00
arancormonk
c6d3e4cea0
rtl_sdr_fm: removed the obsolete rwlock and lock sites
2025-09-03 15:08:19 -04:00
arancormonk
62a9372d61
rtl_sdr: make async buffer params explicit and safe
2025-09-03 15:03:38 -04:00
arancormonk
cc200ea82c
rtl_sdr: make RMS squelch sqrt-free
2025-09-03 14:48:33 -04:00
arancormonk
03c6b28de3
rtl_sdr_fm: initialize async buffer length and consider buffer count
2025-09-03 14:36:26 -04:00
arancormonk
3fe14f3b1d
rtl_sdr_fm: double-buffer the I/Q handoff and remove memcpy/locks between callback and demod
2025-09-03 14:30:32 -04:00
arancormonk
3adcf5f449
rtl_sdr_fm: replace std::queue + locks with a single-producer single-consumer ring buffer
2025-09-03 13:21:47 -04:00
arancormonk
b81e1e6d22
rtl_sdr_fm: fix atan2/LUT discriminator — use precise π, quadrant-correct LUT saturation, clamp ±π at wrap, and mutex-protect LUT free.
2025-09-03 10:38:52 -04:00
lwvmobile
9acd8c981e
Merge pull request #307 from arancormonk/fix/nxdn-cac-temp-buffer-overflow
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Fix NXDN CAC decoder temp buffer overflow in nxdn_deperm_cac causing segfaults under -O2/-O3
2025-09-02 22:10:42 -04:00
lwvmobile
9353c489aa
Merge pull request #306 from arancormonk/fix/p25p2-tdma-voice-vector-oob
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Fix OOB writes in ez.cpp HB/HBS vectors causing P25p2 TDMA voice segfault
2025-09-02 21:22:54 -04:00
arancormonk
bc95dc1a1d
Fix NXDN CAC decoder temp buffer overflow in nxdn_deperm_cac causing segfaults under -O2/-O3.
2025-09-02 15:53:26 -04:00
arancormonk
1ecd32e017
Fix OOB writes in ez.cpp HB/HBS vectors causing P25p2 TDMA voice segfault
2025-09-02 15:07:51 -04:00
lwvmobile
6ef823347b
Fix Bug with -F switch requiring an argument;
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Bug was introduced in commitc 888dfc1d6569c42aa45ca86aad00ed630410ddd ;
2025-08-30 04:31:21 -04:00
lwvmobile
bd75c1ab83
MBE: Prepare for changes to P25p1 ESS in SDRTrunk .mbe files (version, ks application); #298
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MBE: Make tweaks to audio and wav file handling, allow writing to static wav files even if audio out device is NULL (writeSynthesizedVoiceMS);
DSTAR: Fix Issue with DSTAR where double writes would occur in single static .wav files;
2025-08-23 20:31:32 -04:00
lwvmobile
b3b943d330
Update Docs;
2025-08-22 14:27:13 -04:00
lwvmobile
a5151686ec
Add Generic Static AMBE Keystream Support; #303
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Adding a new method to allow a user to enter a generic keystream len and static keystream via a string that is loaded into a bit array to xor against ambe frames;
This method is intended to be used to allow
2025-08-22 14:02:09 -04:00
lwvmobile
24c1dd97df
DMR: Add 16-bit Anytone BP Support; #303
...
Reset static_ks_counter as various places in code;
Remove the static_ks_counter reset from KWD SCR link control and tweak SO bits;
Fix Forced KS application to work in both slots;
Allow Static Wav File or Per Call Wav File in SDRTrunk MBE format playback; #298
Same as above for .amb, .dmb, and .imb format playback;
Update Usage and Docs;
2025-08-20 23:12:57 -04:00
lwvmobile
6f171620dc
DMR: Reorganize TYT and KEN encrytion modes, putting them into the proper files; #302 #303
2025-08-19 19:18:01 -04:00
lwvmobile
7428a87d80
WAV: Fix Issues with Per Call;
...
Fix Per Call Issue introduced with commit re-enabling single static wav file where single channel audio decode types would not write to per call temp wav files and be deleted after event history cycled them;
Fix Issue with YSF where double writes would occur in .wav files;
Fix Issue with M17 where incorrect rate audio would write to static .wav file by converting to stereo output;
Seperate Per Call and Create Method to Allow EDACS Analog Calls to be written to static wav file by downsampling and stereo interleaving audio to proper spec;
Issues were introduced in commit # c7b25c60af
2025-08-19 02:35:17 -04:00
