controlport_stats.cpp File Reference

#include <memory>
#include <string_view>
#include "debug.h"
#include "module.h"
#include "control_socket.h"
#include "audio/audio_filter.h"
#include "audio/types.h"
#include "audio/utils.h"
#include "lib_common.h"

Include dependency graph for controlport_stats.cpp:

Go to the source code of this file.

Classes
struct	state_controlport_stats

Functions
static af_result_code	configure (void *state, int in_bps, int in_ch_count, int in_sample_rate)
static void	done (void *state)
static af_result_code	filter (void *state, struct audio_frame **frame)
static void	get_configured (void *state, int *bps, int *ch_count, int *sample_rate)
static af_result_code	init (struct module *parent, const char *cfg, void **state)
	REGISTER_MODULE (controlport_stats, &audio_filter_controlport_stats, LIBRARY_CLASS_AUDIO_FILTER, AUDIO_FILTER_ABI_VERSION)
static void	usage ()

Variables
static const struct audio_filter_info	audio_filter_controlport_stats

Detailed Description

Author

Martin Piatka piatk.nosp@m.a@ce.nosp@m.snet..nosp@m.cz

Definition in file controlport_stats.cpp.

Function Documentation

configure()

static af_result_code configure ( void * state, int in_bps, int in_ch_count, int in_sample_rate )

static

Definition at line 88 of file controlport_stats.cpp.

{
        auto s = static_cast<state_controlport_stats *>(state);
 
        s->bps = in_bps;
        s->ch_count = in_ch_count;
        s->sample_rate = in_sample_rate;
 
        return AF_OK;
}

References AF_OK, state_controlport_stats::bps, and state.

Referenced by filter().

done()

static void done ( void * state )

static

Definition at line 100 of file controlport_stats.cpp.

                             {
        auto s = static_cast<state_controlport_stats *>(state);
 
        delete s;
}

References state.

filter()

static af_result_code filter ( void * state, struct audio_frame ** frame )

static

Definition at line 116 of file controlport_stats.cpp.

                                                                     {
        auto s = static_cast<state_controlport_stats *>(state);
 
        auto f = *frame;
 
        if(f->bps != s->bps || f->ch_count != s->ch_count){
                if(configure(state, f->bps, f->ch_count, f->sample_rate) != AF_OK){
                        return AF_MISCONFIGURED;
                }
        }
 
        if(!control_stats_enabled(s->control))
                return AF_OK;
 
        std::string report = "ASEND";
        for(int i = 0; i < f->ch_count; i++){
                double rms, peak;
                rms = calculate_rms(f, i, &peak);
                double rms_dbfs0 = 20 * log(rms) / log(10);
                double peak_dbfs0 = 20 * log(peak) / log(10);
                report += " volrms" + std::to_string(i) + " " + std::to_string(rms_dbfs0);
                report += " volpeak" + std::to_string(i) + " " + std::to_string(peak_dbfs0);
        }
        control_report_stats(s->control, report.c_str());
 
        return AF_OK;
}

References AF_MISCONFIGURED, AF_OK, calculate_rms(), configure(), control_report_stats(), control_stats_enabled(), frame, and state.

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get_configured()

static void get_configured ( void * state, int * bps, int * ch_count, int * sample_rate )

static

Definition at line 106 of file controlport_stats.cpp.

{
        auto s = static_cast<state_controlport_stats *>(state);
 
        if(bps) *bps = s->bps;
        if(ch_count) *ch_count = s->ch_count;
        if(sample_rate) *sample_rate = s->sample_rate;
}

References state_controlport_stats::bps, sample_rate, and state.

init()

static af_result_code init ( struct module * parent, const char * cfg, void ** state )

static

Definition at line 76 of file controlport_stats.cpp.

                                                                                {
        auto s = std::make_unique<state_controlport_stats>(parent);
 
        if(strcmp(cfg, "help") == 0){
                usage();
                return AF_HELP_SHOWN;
        }
 
        *state = s.release();
        return AF_OK;
};

References AF_HELP_SHOWN, AF_OK, parent, state, and usage().

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REGISTER_MODULE()

REGISTER_MODULE	(	controlport_stats	,
		&	audio_filter_controlport_stats,
		LIBRARY_CLASS_AUDIO_FILTER	,
		AUDIO_FILTER_ABI_VERSION	)

usage()

static void usage ( void )

static

Definition at line 71 of file controlport_stats.cpp.

                   {
        printf("controlport_stats:\n");
        printf("Reporting of audio volume via control port\n");
}

Referenced by init().

Variable Documentation

audio_filter_controlport_stats

const struct audio_filter_info audio_filter_controlport_stats

static

Initial value:

= {
        .name = "controlport_stats",
        .init = init,
        .done = done,
        .configure = configure,
        .get_configured_in = get_configured,
        .get_configured_out = get_configured,
        .filter = filter,
}

Definition at line 144 of file controlport_stats.cpp.

                                                                       {
        .name = "controlport_stats",
        .init = init,
        .done = done,
        .configure = configure,
        .get_configured_in = get_configured,
        .get_configured_out = get_configured,
        .filter = filter,
};