Mike-Solar
354df2e194
- config moves into oakcommon as ConfigStore + oakcommon_config_* C API (INI storage, typed entries, error-handler injection); node and render call sites keep OAK_CONFIG() macro shape via a local shim that forwards to the C API; transition config stubs removed - oakaudio: de-Qt all six classes, C ABI in include/audio with refcounted handles (processor/manager/waveform/levelmeter/sync, 48 functions); PreviewAudioDevice moved in from render; recording goes through oakcodec encoder; waveform extract uses probe + ffmpeg_bridge decode (decode_audio needs M8 task system) - fix re_sum_samples min/max init bug (values clamped to 0 for same-sign ranges) - every C API function has positive + error-path tests; suites: oakcommon 193, oakaudio 36, oaknode 96, oakrender 42, oakcodec 18
74 lines
2.2 KiB
C
74 lines
2.2 KiB
C
/***
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Oak Video Editor - Non-Linear Video Editor
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Copyright (C) 2026 Oak Team
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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***/
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#ifndef OAK_EDITOR_AUDIO_LEVELMETER_H
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#define OAK_EDITOR_AUDIO_LEVELMETER_H
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#include "error.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @file levelmeter.h
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* @brief C ABI for the oakaudio level meter (olive::AudioLevelMeter):
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* stateless peak/RMS/VU/LUFS analysis of planar float audio.
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*/
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/** Per-channel analysis results. dB fields floor at -200. */
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typedef struct oakaudio_channel_stats {
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double peak_linear;
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double peak_db;
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double rms_linear;
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double rms_db;
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double vu_db;
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} oakaudio_channel_stats;
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/** Buffer-wide summary. */
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typedef struct oakaudio_meter_stats {
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double max_peak_linear;
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double integrated_lufs; /**< BS.1770-compatible unit (no K-weighting). */
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int silence; /**< 1 when the buffer is (near-)silent. */
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} oakaudio_meter_stats;
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/**
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* @brief Analyze a planar float buffer.
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*
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* @param planar Per-channel float planes.
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* @param channel_count Number of channels (> 0).
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* @param frame_count Frames per channel (>= 0).
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* @param channels Receives per-channel stats; may be NULL.
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* @param channels_capacity Capacity of `channels` (must be >=
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* channel_count when channels is non-NULL).
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* @param summary Receives the buffer-wide summary; may be NULL.
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* @return OAKAUDIO_OK or OAKAUDIO_E_INVALID.
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*/
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OAKAUDIO_API int oakaudio_levelmeter_analyze(const float *const *planar,
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int channel_count, int frame_count,
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oakaudio_channel_stats *channels, int channels_capacity,
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oakaudio_meter_stats *summary);
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#ifdef __cplusplus
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}
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#endif
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#endif //OAK_EDITOR_AUDIO_LEVELMETER_H
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