(old)Puppy Linux Discussion Forum

Code: Select all

play_au() { #just sends $@ to /dev/audio
cat $@ > /dev/audio
}

play_wav() { #just sends $@ to /dev/dsp
cat $@ > /dev/dsp
}

Code: Select all

-rwxr-xr-x 1 ibid ibid 46028 2012-04-15 18:28 minimp3-musl
-rwxr-xr-x 1 ibid ibid 33724 2012-04-15 18:28 minimp3-musl,os
-rwxr-xr-x 1 ibid ibid 42944 2012-04-15 18:28 minimp3-musl,s
-rwxr-xr-x 1 ibid ibid 29288 2012-04-15 18:28 minimp3-musl.upx

Code: Select all

-rwxr-xr-x 1 root root 40084 2012-04-16 20:59 minimp3

Code: Select all

-rwxr-xr-x 1 root root 47116 2012-04-16 21:04 minimp3

Code: Select all

musl-gcc -pipe -Os -mtune=i686 -static -s -ffunction-sections -fdata-sections -D_XOPEN_SOURCE -Wl,--gc-sections -finline-functions-called-once -fmerge-all-constants -fexpensive-optimizations -fomit-frame-pointer -fpeephole2 -fno-loop-optimize -momit-leaf-frame-pointer minimp3.c

Code: Select all

mpg123 -@ http://players.creacast.com/creacast/classique/playlist.pls

Code: Select all

#include <fcntl.h>
#define DUMPTAGS
int main(int argc, char **argv){
	unsigned char buf[4096];
	int len,fd = open(argv[1],O_RDONLY);
	while (len=read(fd,buf,10)){ // handle ID3v2 tags (maybe multiple)
		if (buf[0]=='I' && buf[1]=='D' && buf[2]=='3'){
			len=read(fd,buf,buf[9]|(buf[8] << 7)|(buf[7] << 14)|(buf[6] << 21));
#ifdef DUMPTAGS
			write(2,buf,len);
#endif
		} else break;
	}
	while (write(1,buf,len)){
		unsigned char tag[3] = {'T','A','G'}, *end;
		len=read(fd,buf,4096);
		end=(unsigned char *)memmem(buf,len,&tag,3);
		if (end){ //handle ID3v1 tag (should only be 1)
			write(1,buf,end-buf);
#ifdef DUMPTAGS
			write(2,end,len-(end-buf));
#endif
			break;
		}
	}
}

Code: Select all

//diet gcc -Os -finline-small-functions oggplay.c -ffunction-sections -fdata-sections -fmerge-all-constants -Wl,--gc-sections,-s -o oggplay -lm
#define STB_VORBIS_NO_PUSHDATA_API
#define STB_VORBIS_NO_INLINE_DECODE

#include "stb_vorbis.c"
#include <fcntl.h>
#include <sys/ioctl.h>
#include <linux/soundcard.h>

static inline void write2(char *msg){
	write(2,msg,strlen(msg));
}

int main(int argc, char **argv){
	int error,
	value = AFMT_S16_LE ,
	pcm = open("/dev/dsp", O_WRONLY);
	if (pcm < 0)
		write2("cannot get fd\n");
	if (ioctl(pcm, SNDCTL_DSP_SETFMT, &value) < 0)
		write2("cannot set audio format: %s\n");

while (--argc) {
    short *decoded;
    int channels, len, sample_rate;
    len = stb_vorbis_decode_filename(argv[argc], &channels, &sample_rate, &decoded);
    if (ioctl(pcm, SNDCTL_DSP_CHANNELS, &channels) < 0)
		write2("cannot set channels");
    if (ioctl(pcm, SNDCTL_DSP_SPEED, &sample_rate) < 0)
		write2("cannot set sample rate");
	if (len>0) write(pcm,decoded,len*channels);
}
close(pcm);
return 0;
}