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[standalone] Improvements, support for audio
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,74 @@ | ||
| #pragma once | ||
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| /* SPDX-License-Identifier: GPL-3.0-or-later */ | ||
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| #include <avnd/concepts/all.hpp> | ||
| #include <avnd/introspection/input.hpp> | ||
| #include <avnd/introspection/messages.hpp> | ||
| #include <avnd/introspection/output.hpp> | ||
| #include <avnd/wrappers/effect_container.hpp> | ||
| #include <avnd/wrappers/metadatas.hpp> | ||
| #include <avnd/wrappers/process_adapter.hpp> | ||
| #include <ossia/audio/audio_device.hpp> | ||
| #include <ossia/audio/audio_engine.hpp> | ||
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| namespace standalone | ||
| { | ||
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| struct audio_tick | ||
| { | ||
| int frames; | ||
| }; | ||
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| template <typename T> | ||
| struct audio_mapper | ||
| { | ||
| avnd::effect_container<T>& object; | ||
| ossia::audio_engine* audio{}; | ||
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| [[no_unique_address]] avnd::process_adapter<T> processor; | ||
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| explicit audio_mapper( | ||
| avnd::effect_container<T>& object, int in_channels, int out_channels, int bs, | ||
| int rate) | ||
| : object{object} | ||
| { | ||
| int want_ins = avnd::input_channels<T>(in_channels); | ||
| int want_outs = avnd::output_channels<T>(out_channels); | ||
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| int want_buffer_size = bs; | ||
| int want_sample_rate = rate; | ||
| audio = ossia::make_audio_engine( | ||
| "", std::string(avnd::get_name<T>()), "", "", want_ins, want_outs, | ||
| want_sample_rate, want_buffer_size); | ||
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| // Allocate buffers that may be required for converting float <-> double | ||
| avnd::process_setup setup_info{ | ||
| .input_channels = want_ins, | ||
| .output_channels = want_outs, | ||
| .frames_per_buffer = want_buffer_size, | ||
| .rate = (double)want_sample_rate}; | ||
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| processor.allocate_buffers(setup_info, float{}); | ||
| processor.allocate_buffers(setup_info, double{}); | ||
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| avnd::prepare(object, setup_info); | ||
| audio->set_tick([this](auto& st) { (*this)(st); }); | ||
| } | ||
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| void operator()(const ossia::audio_tick_state& st) | ||
| { | ||
| audio_tick tick = {.frames = (int)st.frames}; | ||
| int n = avnd::get_frames(tick); | ||
| auto ins = avnd::span<float*>{const_cast<float**>(st.inputs), (std::size_t)st.n_in}; | ||
| auto outs = avnd::span<float*>{st.outputs, (std::size_t)st.n_out}; | ||
| this->processor.process(object, ins, outs, tick); | ||
| } | ||
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| ~audio_mapper() | ||
| { | ||
| audio->stop(); | ||
| delete audio; | ||
| } | ||
| }; | ||
| } |
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