Audio CD Player on Pixilang !

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vladkorotnev
Posts: 6
Joined: Thu Aug 16, 2012 7:38 pm
Location: Ufa, Russia
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Audio CD Player on Pixilang !

Post by vladkorotnev » Thu Aug 16, 2012 8:28 pm

Hello! :beer:

After lots of experiments I got it working! :Yahoo!:
It plays audioCD right from /dev/disk1s* (change it in code to match your system), in raw format!
:D Has 3 awesome visualizers:
First, activated by pressing UP:
Image

Second, activated with DOWN:
Image

And third, activated with BACKSPACE:
Image

You can switch next-prev tracks with left-right keys :good: . Auto-switching is broken for now =@ .
If anyone knows how to make this work on Windoze, please tell me :P

Code is here: https://github.com/vladkorotnev/my_pixi ... layer.pixi

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AutumnCheney
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Location: durant, ok, usa
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Re: Audio CD Player on Pixilang !

Post by AutumnCheney » Mon Oct 19, 2020 6:20 pm

any chance i can get this to work for any wav file on my system? the screenshots look really cool
please check out my newgrounds account, i post music and talk to people here: https://autumncheney.newgrounds.com

i have a soundcloud and bandcamp too (just music here):
https://soundcloud.com/autumncheney
https://autumncheney.bandcamp.com

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vladkorotnev
Posts: 6
Joined: Thu Aug 16, 2012 7:38 pm
Location: Ufa, Russia
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Re: Audio CD Player on Pixilang !

Post by vladkorotnev » Tue Oct 20, 2020 5:04 am

I suppose you could, this seems to be just doing a raw read of the track data (it's been a long time since I wrote this! haha)

Substitute line 47: https://github.com/vladkorotnev/my_pixi ... r.pixi#L47

With something that will end up with your wav file in the `tp` variable as the first argument to `fopen`.

Sadly I don't remember much about Pixilang, so I don't know how to bring up a file picker or something.

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AutumnCheney
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Location: durant, ok, usa
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Re: Audio CD Player on Pixilang !

Post by AutumnCheney » Tue Oct 20, 2020 7:38 am

hey, you're alive!

i tried importing the graphics code into a basic wav player based on nightradio's examples. i have a file called "100yrslp.wav" in the "sound_files" directory that i want to play.

the audio works, and the graphics do load and do respond to key inputs, but they don't seem to be doing anything. i think that it isn't importing the file, and i don't know how to get it to.

here's my code:

Code: Select all

// WAV file player
// How to use: change the SETUP part and run this program to play the specified file
//

// ########################################
// ## SETUP ###############################
// ########################################

//Input WAV file:
filename = "examples/sound/sound_files/100yrslp.wav"

//Graphics options:
xsize = 1280
ysize = 720

//Sound options:
sample_rate_scale = 1

// ########################################
// ## SETUP COMPLETE ######################
// ########################################

if xsize == 0 { ss = 480 } else { ss = xsize }
set_pixel_size( WINDOW_XSIZE / ss )
resize( get_screen(), WINDOW_XSIZE, WINDOW_YSIZE )

scr = get_screen()
if xsize != 0 && ysize != 0 { resize( scr, xsize, ysize ) }
xsize = get_xsize( scr )
ysize = get_ysize( scr )
hxsize = xsize / 2
hysize = ysize / 2

traknum = 1

start_timer (0)
vis_num = 0
kR = 0
kG = 0
kB = 0
ktR = 70
ktG = 70
ktB = 100

xs = get_xsize ( get_screen() )
ys = get_ysize ( get_screen() )
hxs = xs / 2
hys = ys / 2

if fps == 0 { fps = 30 }

playtrak:
wav = load( filename )
tp = ""
sprintf (tp, filename)
f = fopen (tp, "rb") // Opens
portion = 2048 //FRAME SIZE
ffts = portion // FFT Size
buf = new ( portion, 1, INT16 ) //Buffer for read
clean (buf)
im = new( ffts, 1, FLOAT32 ) // Buffer for FFT
clean( im )
re = new( ffts, 1, FLOAT32 ) // Buffer for FFT
clean( re )
sb= new( ffts, 1, FLOAT32 ) // Buffer for VIS
clean( sb ) 
vis_num = 0 // Current VIS

logf( "WAV Sample Rate: %d\n", wav.sample_rate )
logf( "WAV Channels: %d\n", wav.channels )
wav_ptr = 0
wav_size = get_size( wav ) //number of frames
wav_channels = wav.channels
wav_amp_max = 256
type = get_type( wav )
if type == INT16 { wav_amp_max = 1 << 15 }
if type == INT32 { wav_amp_max = 1 << 30 }
if type == FLOAT32 { wav_amp_max = 1 }

rate1 = get_audio_sample_rate( 0 )
rate2 = get_audio_sample_rate( 1 )
logf( "Local (defined by the set_audio_callback()) sample rate: %d Hz\n", rate1 )
logf( "Global (defined in the global Pixilang preferences) sample rate: %d Hz\n", rate2 )
if rate1 != rate2
{
logf( "%d != %d, so resampling will be enabled\n", rate1, rate2 )
}
set_audio_callback( audio_callback, 0, wav.sample_rate * sample_rate_scale, get_type( wav ), wav_channels, AUDIO_FLAG_INTERP2 )

fn cv( $color ) // Cool Visual of $color
{
		
    scr = get_screen()
    xsize = get_xsize( scr )
    ysize = get_ysize( scr )
    hxsize = xsize/2
    c = 0
    x = -hxsize while( x < hxsize )
    {
        
        dot( x, buf[ hxsize+x ] / 1024, $color )
        x + 1
    }

} // End Cool Visual
fn cvR( $color , $rate ) // Cool Visual of $color at $rate
{
		scr = get_screen()
xsize = get_xsize( scr )
ysize = get_ysize( scr )
hxsize = xsize/2
c = 0
	x = -hxsize while( x < hxsize )
    { 
	line(x, -buf[ hxsize+x ]/512, x, buf[ hxsize+x ]/512, $color)
	x + $rate
    }

}

fn render_vis_f() { // Renders Visual #2 (key DOWN)

transp( 150 ) // Transparency (fade) Effect
	clear()   
	transp( 256 )
	fft(0,im,re,portion) //FFT 

	inv = get_color(255-(2.55*kR),255-(2.55*kG),255-(2.55*kB))
	// inverted color of kR/kG/kB
	x = 0 while (x < xs) {
		Y = sqrt ( im[x+50]*im[50+x] + re[50+x]*re[x+50] )
		Y / 1000
	line(x-hxs,-hys,x-hxs,-sb[x]/50,inv)
		x + 1
	}
	effector( EFF_HBLUR, 64, WHITE, -hxs, -hys, xs, ys )
	effector( EFF_VBLUR, 64, WHITE, -hxs, -hys, xs, ys )
	 x = 0 while (x < xs) {
		Y = sqrt ( im[x]*im[x] + re[x]*re[x] )
		Y / 1000
	line(x-hxs,sb[x]/100,x-hxs,hys+Y,get_color(2.55 * kR,2.55 * kG,2.55 * kB))
x + 2
	}

	effector( EFF_VBLUR, 32, WHITE, -hxs, -hys, xs, ys )


} //END Visual 2

fn render_vis_w() { // Visual #1 (key UP) 

transp(89) //Fade effect
	clear()
	transp(255)
	if (sb[0]/1000 > 4) && (sb[0]/1000 < 1000) { //Thresholded BG 'lights'
		x = -hxs
		while (x<hxs) {
			line(x,-sb[hxs+x]/100,x,sb[hxs+x]/100,get_color(kR*(sb[hxs+x]/10000),kG*(sb[hxs+x]/10000),kB*(sb[hxs+x]/10000)))
			x + 1
		}
		effector(EFF_HBLUR,24)
		effector(EFF_VBLUR,24)
		
	}
	x = -hxs
	while (x<hxs) { // Graph, gradiented
			dot(x,sb[hxs+x]/1000,get_color(kR*(abs(sb[hxs+x])/10000),kG*(abs(sb[hxs+x])/8000),kB*(abs(sb[hxs+x])/10000)))
			x + 1
	}
	kR = rand() % 100 // New colors
	kG = rand() % 100
	kB = rand() % 100
}

fn render_vis_r() { // Visual #3 (key BACKSPACE)
t = get_timer( 0 )

		transp( 50 )
		clear()
	
		transp( 255 )
				    cvR(ORANGE,4)
			   				   
			    effector( EFF_VBLUR, 12 )
			    effector( EFF_HBLUR, 12 )
			  
			    cv(GREEN)
		
		print("vladkorotnev's CD player")
	
		
		frame()
}

while (1) {
    
    t = get_timer( 0 )
    
    t = get_timer(0) // Vis Purposes

    if vis_num == 0 { render_vis_w() } // Visual 1
    if vis_num == 1 { render_vis_f() }	// Visual 2
            if vis_num == 2 { render_vis_r() }	//Visual 3
            
    while( get_event() ) {  //Keys

    if EVT[ EVT_TYPE ] == EVT_QUIT { halt } //Quit 

    if EVT[ EVT_KEY ] == KEY_LEFT { 
    fclose(f) //close file
    traknum - 0.5 //prev num
    go playtrak //play
    // Not using GO because fires twice, lol
    } // Left - Prev

    if EVT[ EVT_KEY ] == KEY_RIGHT {
    fclose(f) //close file
    traknum + 0.5 //next num
    go playtrak //play
    // Not using GO because fires twice, lol
    } //Right - Next

    if EVT[ EVT_KEY ] == KEY_UP { vis_num = 0 } // Up - vis1

    if EVT[ EVT_KEY ] == KEY_DOWN { vis_num = 1 }//Down -vis2

    if EVT[ EVT_KEY ] == KEY_BACKSPACE { vis_num = 2 } //BKSP - Vis3
    }
    ts = "" //temp str
    sprintf(ts,"CD TRACK: %u",traknum)	
    print(ts,0,-hys+50 ) // display track
        frame() //render done
            
        if (t / 100) - (t div 100) == 0 {
        ktR = rand() % 100  // new colors once in a while
        ktG = rand() % 100
        ktB = rand() % 100
    }
    //animate color transition
    if (ktR > kR) {
        kR + 1
    }
    if (ktR < kR) {
        kR - 1
    }
    if (ktG > kG) {
        kG + 1
    }
    if (ktG < kG) {
        kG - 1
    }
    if (ktB > kB) {
        kB + 1
    }
    if (ktB < kB) {
        kB - 1
    }
        clean(im) //clean buffer of FFT

        
        t_reset()

        while( get_event() ) { if EVT[ EVT_TYPE ] == EVT_QUIT { breakall } }

        frame()
    
}

fn audio_callback(
    $stream, 
    $userdata, 
    $channels, 
    $frames, 
    $output_time_in_system_ticks, 
    $in_channels, 
    $latency_in_frames )
{
    if wav_ptr >= wav_size { ret( 0 ) }
    $c = 0 while( $c < wav_channels )
    {
	copy( $channels[ $c ], wav, 0, wav_ptr + $c, $frames, 1, wav_channels )
	$c + 1
    }
    wav_ptr + $frames * wav_channels
    ret( 1 )
	
    copy ( re, buf, 0,0,portion,1,1)
	copy ( sb, buf, 0,0,portion,1,1)
    ret( 1 )
}
sorry about the bad formatting
please check out my newgrounds account, i post music and talk to people here: https://autumncheney.newgrounds.com

i have a soundcloud and bandcamp too (just music here):
https://soundcloud.com/autumncheney
https://autumncheney.bandcamp.com

User avatar
vladkorotnev
Posts: 6
Joined: Thu Aug 16, 2012 7:38 pm
Location: Ufa, Russia
Contact:

Re: Audio CD Player on Pixilang !

Post by vladkorotnev » Tue Oct 20, 2020 9:08 am

Replacing the

Code: Select all

playtrak:
tp = "" // temp string
sprintf(tp,"/dev/disk1s%u",traknum) // Opens /dev/disk1s<TRACK>, CHANGE FOR YOUR SYSTEM
f = fopen (tp,"rb") // Opens
block with the following should get it kind of working, i think:

Code: Select all

playtrak:
tp = "examples/sound/sound_files/100yrslp.wav"
f = fopen (tp,"rb") // Opens
There will most likely be a slight click on the start, because it expects raw PCM data, not a WAV file — that click would be it going over the RIFF WAVE header part of it.

Btw, it looks like the other code in the same github repo from before is the code for those effects — and a wav file — but as separate programs. I don't have Pixilang here so not 100% sure.

https://github.com/vladkorotnev/my_pixi ... scope.pixi

https://github.com/vladkorotnev/my_pixi ... lizer.pixi

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