#include <movit/effect_chain.h>
#include <movit/flat_input.h>
+#include <zita-resampler/resampler.h>
+#include <atomic>
#include <condition_variable>
#include <cstddef>
#include <functional>
#include <vector>
#include "bmusb/bmusb.h"
+#include "alsa_output.h"
#include "ebu_r128_proc.h"
#include "h264encode.h"
#include "httpd.h"
#include "pbo_frame_allocator.h"
#include "ref_counted_frame.h"
#include "ref_counted_gl_sync.h"
-#include "resampler.h"
+#include "resampling_queue.h"
#include "theme.h"
#include "timebase.h"
#include "stereocompressor.h"
theme->set_wb(channel, r, g, b);
}
+ void set_locut_cutoff(float cutoff_hz)
+ {
+ locut_cutoff_hz = cutoff_hz;
+ }
+
+ float get_limiter_threshold_dbfs()
+ {
+ return limiter_threshold_dbfs;
+ }
+
+ float get_compressor_threshold_dbfs()
+ {
+ return compressor_threshold_dbfs;
+ }
+
+ void set_limiter_threshold_dbfs(float threshold_dbfs)
+ {
+ limiter_threshold_dbfs = threshold_dbfs;
+ }
+
+ void set_compressor_threshold_dbfs(float threshold_dbfs)
+ {
+ compressor_threshold_dbfs = threshold_dbfs;
+ }
+
+ void set_limiter_enabled(bool enabled)
+ {
+ limiter_enabled = enabled;
+ }
+
+ void set_compressor_enabled(bool enabled)
+ {
+ compressor_enabled = enabled;
+ }
+
+ void reset_meters();
+
private:
void bm_frame(unsigned card_index, uint16_t timecode,
FrameAllocator::Frame video_frame, size_t video_offset, uint16_t video_format,
unsigned dropped_frames = 0; // Before new_frame.
std::mutex audio_mutex;
- std::unique_ptr<Resampler> resampler; // Under audio_mutex.
+ std::unique_ptr<ResamplingQueue> resampling_queue; // Under audio_mutex.
int last_timecode = -1; // Unwrapped.
};
CaptureCard cards[MAX_CARDS]; // protected by <bmusb_mutex>
audio_level_callback_t audio_level_callback = nullptr;
Ebu_r128_proc r128;
- // TODO: Implement oversampled peak detection.
- float peak = 0.0f;
+ Resampler peak_resampler;
+ std::atomic<float> peak{0.0f};
- StereoFilter locut; // Cutoff 150 Hz, 24 dB/oct.
+ StereoFilter locut; // Default cutoff 150 Hz, 24 dB/oct.
+ std::atomic<float> locut_cutoff_hz;
// First compressor; takes us up to about -12 dBFS.
StereoCompressor level_compressor;
float last_gain_staging_db = 0.0f;
+
+ static constexpr float ref_level_dbfs = -14.0f;
+
+ StereoCompressor limiter;
+ std::atomic<float> limiter_threshold_dbfs{ref_level_dbfs + 4.0f}; // 4 dB.
+ std::atomic<bool> limiter_enabled{true};
+ StereoCompressor compressor;
+ std::atomic<float> compressor_threshold_dbfs{ref_level_dbfs - 12.0f}; // -12 dB.
+ std::atomic<bool> compressor_enabled{true};
+
+ std::unique_ptr<ALSAOutput> alsa;
};
extern Mixer *global_mixer;