Victor Gaydov

_Last revised: Oct 2023_ Recently we'he added some micro-benchmarks, implemented using Google Benchmark framework. So far we've run them only on PC. To run them on Raspberry Pi (or other...

_Last revised: Oct 2023_ This issue is similar to #368. We have fec::Reader and fec::Writer. They can work with different implementations of fec::IBlockDecoder and fec::IBlockEncoder. Currently we have encoder and...

_Last revised: Oct 2023_ This issue is similar to #368. We have audio::ResamplerReader and audio::ResamplerWriter. They can work with different IResampler implementations. Resampler is documented here: https://roc-streaming.org/toolkit/docs/internals/fe_resampler.html We should create...

_Last revised: Oct 2023_ We have two interfaces for audio codecs: audio::IFrameEncoder and audio::IFrameDecoder. Currently, they are implemented only by audio::PcmEncoder and audio::PcmDecoder. Later we'll add more implementations. In this...

Create micro-benchmarks for core::List

4

_Last revised: Oct 2023_ core::List is widely used in Roc, so it'd be useful to have in our hands real numbers for its major operations. We should measure at least...

Make core::Pool lock-free

1

All our threads communicate via lock-free task and packet queues (see pipeline::TaskPipeline, netio::NetworkLoop, ctl::ControlLoop). However, these threads also use shared memory pools (core::Pool), which is basically a simple slab allocator...

Add CSPRNG based on OpenSSL

4

## Problem Recently we implemented CSPRNG using libuv (#102). It works well, but only recent libuv versions provide CSPRNG, and on older versions we silently fall back to non-secure PRNG....

Add core::Timer implementation based on timerfd

10

## Intro core::Timer is a simple class that allows to wait for deadline expiration in one thread and to update the deadline from other thread(s), concurrently. https://github.com/roc-project/roc/blob/develop/src/modules/roc_core/timer.h https://github.com/roc-project/roc/blob/develop/src/modules/roc_core/timer.cpp Currently we...

Implement simplest "beep" and "echo" PLC

8

## Intro Packet loss concealment ([PLC](https://en.wikipedia.org/wiki/Packet_loss_concealment)) is a technique to mask the effects of packet loss. It comes into play when a packet is lost and can't be recovered using...

ALSA sink and source

13

## Intro Currently we use SoX sink and source to interact with all audio systems except PulseAudio. SoX backend is good at portability and the variety of drivers it supports,...