mirror of
https://gitlab.freedesktop.org/pipewire/pipewire.git
synced 2026-06-18 14:32:58 -04:00
8971c488f3
Make a new zeroramp.duration and zeroramp.gap property on audioconver. It detects N samples of silence before triggering a fade-in or fade-out of the given zeroramp.duration. The zeroramp.duration is by default 5ms and zeroramp.gap is set to 0. When the zeroramp.gap is set to 0, the audioconver will not do any gap detection but it will only do fade-out from the last sample when the IO Buffer area is removed from a port. This by default makes the audio adapter perform a fade-out when the last input of the port mixer was removed and the mixer is no longer scheduled and the IO Area removed from the audioconverter input port.
60 lines
1.4 KiB
C
60 lines
1.4 KiB
C
/* Spa */
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/* SPDX-FileCopyrightText: Copyright © 2025 Wim Taymans */
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/* SPDX-License-Identifier: MIT */
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#include <string.h>
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#include <stdio.h>
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#include <spa/utils/defs.h>
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#include <spa/param/audio/raw.h>
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struct gaps_state {
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uint32_t mode;
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uint32_t count;
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float history[1];
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};
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#define GAPS_MAX_CURVE 4096u
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struct gaps {
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uint32_t cpu_flags;
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const char *func_name;
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struct spa_log *log;
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uint32_t flags;
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uint32_t channels;
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uint32_t gap;
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uint32_t duration;
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float curve[GAPS_MAX_CURVE];
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bool empty;
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int (*check) (struct gaps *gaps, const float * SPA_RESTRICT src[], uint32_t n_samples);
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void (*fix) (struct gaps *gaps, float * SPA_RESTRICT dst[],
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const float * SPA_RESTRICT src[], uint32_t n_samples);
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void (*free) (struct gaps *gaps);
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struct gaps_state states[SPA_AUDIO_MAX_CHANNELS];
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};
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int gaps_init(struct gaps *gaps);
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#define gaps_check(gaps,...) (gaps)->check(gaps, __VA_ARGS__)
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#define gaps_fix(gaps,...) (gaps)->fix(gaps, __VA_ARGS__)
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#define gaps_free(gaps) (gaps)->free(gaps)
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#define DEFINE_CHECK_FUNCTION(arch) \
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int gaps_check_##arch(struct gaps *gaps, const float * SPA_RESTRICT src[], \
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uint32_t n_samples);
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#define DEFINE_FIX_FUNCTION(arch) \
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void gaps_fix_##arch(struct gaps *gaps, float * SPA_RESTRICT dst[], \
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const float * SPA_RESTRICT src[], uint32_t n_samples);
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#define GAPS_OPS_MAX_ALIGN 16
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DEFINE_CHECK_FUNCTION(c);
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DEFINE_FIX_FUNCTION(c);
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#undef DEFINE_CHECK_FUNCTION
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#undef DEFINE_FIX_FUNCTION
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