#include "bmusb/bmusb.h"
#include "alsa_output.h"
+#include "audio_mixer.h"
#include "ebu_r128_proc.h"
#include "video_encoder.h"
#include "httpd.h"
theme->set_wb(channel, r, g, b);
}
- void set_locut_cutoff(float cutoff_hz)
- {
- locut_cutoff_hz = cutoff_hz;
- }
-
- void set_locut_enabled(bool enabled)
- {
- locut_enabled = enabled;
- }
-
- bool get_locut_enabled() const
- {
- return locut_enabled;
- }
-
- 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;
- }
-
- bool get_limiter_enabled() const
- {
- return limiter_enabled;
- }
-
- void set_compressor_enabled(bool enabled)
- {
- compressor_enabled = enabled;
- }
-
- bool get_compressor_enabled() const
- {
- return compressor_enabled;
- }
-
- void set_gain_staging_db(float gain_db)
- {
- std::unique_lock<std::mutex> lock(compressor_mutex);
- level_compressor_enabled = false;
- gain_staging_db = gain_db;
- }
-
- float get_gain_staging_db() const
- {
- std::unique_lock<std::mutex> lock(compressor_mutex);
- return gain_staging_db;
- }
-
- void set_gain_staging_auto(bool enabled)
- {
- std::unique_lock<std::mutex> lock(compressor_mutex);
- level_compressor_enabled = enabled;
- }
-
- bool get_gain_staging_auto() const
- {
- std::unique_lock<std::mutex> lock(compressor_mutex);
- return level_compressor_enabled;
- }
-
- void set_final_makeup_gain_db(float gain_db)
- {
- std::unique_lock<std::mutex> lock(compressor_mutex);
- final_makeup_gain_auto = false;
- final_makeup_gain = pow(10.0f, gain_db / 20.0f);
- }
-
- void set_final_makeup_gain_auto(bool enabled)
- {
- std::unique_lock<std::mutex> lock(compressor_mutex);
- final_makeup_gain_auto = enabled;
- }
-
- bool get_final_makeup_gain_auto() const
- {
- std::unique_lock<std::mutex> lock(compressor_mutex);
- return final_makeup_gain_auto;
- }
+ AudioMixer *get_audio_mixer() { return &audio_mixer; }
+ const AudioMixer *get_audio_mixer() const { return &audio_mixer; }
void schedule_cut()
{
void render_one_frame(int64_t duration);
void send_audio_level_callback();
void audio_thread_func();
- void process_audio_one_frame(int64_t frame_pts_int, int num_samples, bool adjust_rate);
+ void process_audio_one_frame(int64_t frame_pts_int, int num_samples, ResamplingQueue::RateAdjustmentPolicy rate_adjustment_policy);
void subsample_chroma(GLuint src_tex, GLuint dst_dst);
void release_display_frame(DisplayFrame *frame);
double pts() { return double(pts_int) / TIMEBASE; }
// frame rate is integer, will always stay zero.
unsigned fractional_samples = 0;
- std::mutex audio_mutex;
- std::unique_ptr<ResamplingQueue> resampling_queue; // Under audio_mutex.
int last_timecode = -1; // Unwrapped.
- int64_t next_local_pts = 0; // Beginning of next frame, in TIMEBASE units.
};
CaptureCard cards[MAX_CARDS]; // protected by <bmusb_mutex>
+ AudioMixer audio_mixer;
void get_one_frame_from_each_card(unsigned master_card_index, CaptureCard::NewFrame new_frames[MAX_CARDS], bool has_new_frame[MAX_CARDS], int num_samples[MAX_CARDS]);
InputState input_state;
std::atomic<bool> should_cut{false};
audio_level_callback_t audio_level_callback = nullptr;
- mutable std::mutex compressor_mutex;
- Ebu_r128_proc r128; // Under compressor_mutex.
- CorrelationMeasurer correlation; // Under compressor_mutex.
-
- Resampler peak_resampler;
+ mutable std::mutex audio_measure_mutex;
+ Ebu_r128_proc r128; // Under audio_measure_mutex.
+ CorrelationMeasurer correlation; // Under audio_measure_mutex.
+ Resampler peak_resampler; // Under audio_measure_mutex.
std::atomic<float> peak{0.0f};
- StereoFilter locut; // Default cutoff 120 Hz, 24 dB/oct.
- std::atomic<float> locut_cutoff_hz;
- std::atomic<bool> locut_enabled{true};
-
- // First compressor; takes us up to about -12 dBFS.
- StereoCompressor level_compressor; // Under compressor_mutex. Used to set/override gain_staging_db if <level_compressor_enabled>.
- float gain_staging_db = 0.0f; // Under compressor_mutex.
- bool level_compressor_enabled = true; // Under compressor_mutex.
-
- static constexpr float ref_level_dbfs = -14.0f; // Chosen so that we end up around 0 LU in practice.
- static constexpr float ref_level_lufs = -23.0f; // 0 LU, more or less by definition.
-
- 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};
-
- double final_makeup_gain = 1.0; // Under compressor_mutex. Read/write by the user. Note: Not in dB, we want the numeric precision so that we can change it slowly.
- bool final_makeup_gain_auto = true; // Under compressor_mutex.
-
std::unique_ptr<ALSAOutput> alsa;
struct AudioTask {
projects / nageru / blobdiff