static void
reset_device (int wait_p)
{
if (wait_p)
audio_drain (audio_fd, 1);
else
audio_flush_play (audio_fd);
if (reset_device_p)
audio_set_play_config (audio_fd, &dev_hdr);
if (reset_volume_p)
audio_set_play_gain (audio_fd, &old_volume);
}
int
play_sound_data (unsigned char *data, int length, int volume)
{
int wrtn, start = 0;
unsigned int ilen;
int result = 0;
audio_fd = -1;
if (length == 0) return 0;
/* this is just to get a better error message */
if (strncmp (".snd\0", (char *) data, 4))
{
warn ("Not valid audio data (bad magic number)");
goto END_OF_PLAY;
}
if (length <= sizeof (Audio_hdr))
{
warn ("Not valid audio data (too short)");
goto END_OF_PLAY;
}
audio_fd = audio_open ();
if (audio_fd < 0)
return 0;
/* where to find the proto for signal()... */
sighup_handler = (SIGTYPE (*) (int)) signal (SIGHUP, sighandler);
sigint_handler = (SIGTYPE (*) (int)) signal (SIGINT, sighandler);
if (init_device (volume, data, 0, &ilen))
goto END_OF_PLAY;
data += (ilen<<2);
length -= (ilen<<2);
if (length <= 1)
goto END_OF_PLAY;
while (1)
{
wrtn = write (audio_fd, (char *) (data+start), length-start);
if (wrtn < 0)
{
perror ("write");
goto END_OF_PLAY;
}
if (wrtn != 0)
{
start += wrtn;
break;
}
if (AUDIO_ERR_INTERRUPTED == audio_drain (audio_fd, 1))
goto END_OF_PLAY;
}
if (wrtn != length)
{
char buf [255];
sprintf (buf, "play: rrtn = %d, wrtn = %d", length, wrtn);
warn (buf);
goto END_OF_PLAY;
}
result = 1;
END_OF_PLAY:
if (audio_fd > 0)
{
reset_device (1);
close (audio_fd);
}
signal (SIGHUP, sighup_handler);
signal (SIGINT, sigint_handler);
return result;
}
void
play_sound_file (char *sound_file, int volume)
{
int rrtn, wrtn;
unsigned char buf [255];
int file_fd;
audio_fd = audio_open ();
if (audio_fd < 0)
{
perror ("open /dev/audio");
return;
}
/* where to find the proto for signal()... */
sighup_handler = (SIGTYPE (*) (int)) signal (SIGHUP, sighandler);
sigint_handler = (SIGTYPE (*) (int)) signal (SIGINT, sighandler);
file_fd = open (sound_file, O_RDONLY, 0);
if (file_fd < 0)
{
perror (sound_file);
goto END_OF_PLAY;
}
if (init_device (volume, (unsigned char *) 0, file_fd, (unsigned int *) 0))
goto END_OF_PLAY;
while (1)
{
rrtn = read (file_fd, (char *) buf, sizeof (buf));
if (rrtn < 0)
{
perror ("read");
goto END_OF_PLAY;
}
if (rrtn == 0)
break;
while (1)
{
wrtn = write (audio_fd, (char *) buf, rrtn);
if (wrtn < 0)
{
perror ("write");
goto END_OF_PLAY;
}
if (wrtn != 0)
break;
if (AUDIO_ERR_INTERRUPTED == audio_drain (audio_fd, 1))
goto END_OF_PLAY;
}
if (wrtn != rrtn)
{
char warn_buf [255];
sprintf (warn_buf, "play: rrtn = %d, wrtn = %d", rrtn, wrtn);
warn (warn_buf);
goto END_OF_PLAY;
}
}
END_OF_PLAY:
if (file_fd > 0)
close (file_fd);
if (audio_fd > 0)
{
reset_device (1);
close (audio_fd);
}
signal (SIGHUP, sighup_handler);
signal (SIGINT, sigint_handler);
}
/* Play a list of audio files. */
int
main(int argc, char **argv) {
int errorStatus = 0;
int i;
int c;
int cnt;
int file_type;
int rem;
int outsiz;
int tsize;
int len;
int err;
int ifd;
int stdinseen;
int regular;
int swapBytes;
int frame;
char *outbuf;
caddr_t mapaddr;
struct stat st;
char *cp;
char ctldev[MAXPATHLEN];
(void) setlocale(LC_ALL, "");
(void) textdomain(TEXT_DOMAIN);
/* Get the program name */
prog = strrchr(argv[0], '/');
if (prog == NULL)
prog = argv[0];
else
prog++;
Stdin = MGET("(stdin)");
/* Check AUDIODEV environment for audio device name */
if (cp = getenv("AUDIODEV")) {
Audio_dev = cp;
}
/* Parse the command line arguments */
err = 0;
while ((i = getopt(argc, argv, prog_opts)) != EOF) {
switch (i) {
case 'v':
if (parse_unsigned(optarg, &Volume, "-v")) {
err++;
} else if (Volume > MAX_GAIN) {
Error(stderr, MGET("%s: invalid value "
"for -v\n"), prog);
err++;
}
break;
case 'd':
Audio_dev = optarg;
break;
case 'V':
Verbose = TRUE;
break;
case 'E':
Errdetect = TRUE;
break;
case 'i':
Immediate = TRUE;
break;
case '?':
usage();
/*NOTREACHED*/
}
}
if (err > 0)
exit(1);
argc -= optind; /* update arg pointers */
argv += optind;
/* Validate and open the audio device */
err = stat(Audio_dev, &st);
if (err < 0) {
Error(stderr, MGET("%s: cannot stat "), prog);
perror(Audio_dev);
exit(1);
}
if (!S_ISCHR(st.st_mode)) {
Error(stderr, MGET("%s: %s is not an audio device\n"), prog,
Audio_dev);
exit(1);
}
/* This should probably use audio_cntl instead of open_audio */
if ((argc <= 0) && isatty(fileno(stdin))) {
Error(stderr, MGET("%s: No files and stdin is a tty.\n"), prog);
exit(1);
}
/* Check on the -i status now. */
Audio_fd = open(Audio_dev, O_WRONLY | O_NONBLOCK);
if ((Audio_fd < 0) && (errno == EBUSY)) {
if (Immediate) {
Error(stderr, MGET("%s: %s is busy\n"), prog,
Audio_dev);
exit(1);
}
}
(void) close(Audio_fd);
Audio_fd = -1;
/* Try to open the control device and save the current format */
(void) snprintf(ctldev, sizeof (ctldev), "%sctl", Audio_dev);
Audio_ctlfd = open(ctldev, O_RDWR);
if (Audio_ctlfd >= 0) {
/*
* wait for the device to become available then get the
* controls. We want to save the format that is left when the
* device is in a quiescent state. So wait until then.
*/
Audio_fd = open(Audio_dev, O_WRONLY);
(void) close(Audio_fd);
Audio_fd = -1;
if (audio_get_play_config(Audio_ctlfd, &Save_hdr)
!= AUDIO_SUCCESS) {
(void) close(Audio_ctlfd);
Audio_ctlfd = -1;
}
}
/* store AUDIOPATH so we don't keep doing getenv() */
Audio_path = getenv("AUDIOPATH");
/* Set up SIGINT handler to flush output */
(void) signal(SIGINT, sigint);
/* Set the endian nature of the machine. */
if ((ulong_t)1 != htonl((ulong_t)1)) {
NetEndian = FALSE;
}
/* If no filenames, read stdin */
stdinseen = FALSE;
if (argc <= 0) {
Ifile = Stdin;
} else {
Ifile = *argv++;
argc--;
}
/* Loop through all filenames */
do {
/* Interpret "-" filename to mean stdin */
if (strcmp(Ifile, "-") == 0)
Ifile = Stdin;
if (Ifile == Stdin) {
if (stdinseen) {
Error(stderr,
MGET("%s: stdin already processed\n"),
prog);
goto nextfile;
}
stdinseen = TRUE;
ifd = fileno(stdin);
} else {
if ((ifd = path_open(Ifile, O_RDONLY, 0, Audio_path))
< 0) {
Error(stderr, MGET("%s: cannot open "), prog);
perror(Ifile);
errorStatus++;
goto nextfile;
}
}
/* Check to make sure this is an audio file */
err = audio_read_filehdr(ifd, &File_hdr, &file_type,
(char *)NULL, 0);
if (err != AUDIO_SUCCESS) {
Error(stderr,
MGET("%s: %s is not a valid audio file\n"),
prog, Ifile);
errorStatus++;
goto closeinput;
}
/* If G.72X adpcm, set flags for conversion */
if ((File_hdr.encoding == AUDIO_ENCODING_G721) &&
(File_hdr.samples_per_unit == 2) &&
(File_hdr.bytes_per_unit == 1)) {
Decode = AUDIO_ENCODING_G721;
File_hdr.encoding = AUDIO_ENCODING_ULAW;
File_hdr.samples_per_unit = 1;
File_hdr.bytes_per_unit = 1;
adpcm_state = (struct audio_g72x_state *)malloc
(sizeof (*adpcm_state) * File_hdr.channels);
for (i = 0; i < File_hdr.channels; i++) {
g721_init_state(&adpcm_state[i]);
}
} else if ((File_hdr.encoding == AUDIO_ENCODING_G723) &&
(File_hdr.samples_per_unit == 8) &&
(File_hdr.bytes_per_unit == 3)) {
Decode = AUDIO_ENCODING_G723;
File_hdr.encoding = AUDIO_ENCODING_ULAW;
File_hdr.samples_per_unit = 1;
File_hdr.bytes_per_unit = 1;
adpcm_state = (struct audio_g72x_state *)malloc
(sizeof (*adpcm_state) * File_hdr.channels);
for (i = 0; i < File_hdr.channels; i++) {
g723_init_state(&adpcm_state[i]);
}
} else {
Decode = AUDIO_ENCODING_NONE;
}
/* Check the device configuration */
open_audio();
if (audio_cmp_hdr(&Dev_hdr, &File_hdr) != 0) {
/*
* The device does not match the input file.
* Wait for any old output to drain, then attempt
* to reconfigure the audio device to match the
* input data.
*/
if (audio_drain(Audio_fd, FALSE) != AUDIO_SUCCESS) {
/* Flush any remaining audio */
(void) ioctl(Audio_fd, I_FLUSH, FLUSHW);
Error(stderr, MGET("%s: "), prog);
perror(MGET("AUDIO_DRAIN error"));
exit(1);
}
/* Flush any remaining audio */
(void) ioctl(Audio_fd, I_FLUSH, FLUSHW);
if (!reconfig()) {
errorStatus++;
goto closeinput;
}
}
/* try to do the mmaping - for regular files only ... */
err = fstat(ifd, &st);
if (err < 0) {
Error(stderr, MGET("%s: cannot stat "), prog);
perror(Ifile);
exit(1);
}
regular = (S_ISREG(st.st_mode));
/* If regular file, map it. Else, allocate a buffer */
mapaddr = 0;
/*
* This should compare to MAP_FAILED not -1, can't
* find MAP_FAILED
*/
if (regular && ((mapaddr = mmap(0, st.st_size, PROT_READ,
MAP_SHARED, ifd, 0)) != MAP_FAILED)) {
(void) madvise(mapaddr, st.st_size, MADV_SEQUENTIAL);
/* Skip the file header and set the proper size */
cnt = lseek(ifd, 0, SEEK_CUR);
if (cnt < 0) {
perror("lseek");
exit(1);
}
inbuf = (unsigned char *) mapaddr + cnt;
len = cnt = st.st_size - cnt;
} else { /* Not a regular file, or map failed */
/* mark is so. */
mapaddr = 0;
/* Allocate buffer to hold 10 seconds of data */
cnt = BUFFER_LEN * File_hdr.sample_rate *
File_hdr.bytes_per_unit * File_hdr.channels;
if (bufsiz != cnt) {
if (buf != NULL) {
(void) free(buf);
}
buf = (unsigned char *) malloc(cnt);
if (buf == NULL) {
Error(stderr,
MGET("%s: couldn't allocate %dK "
"buf\n"), prog, bufsiz / 1000);
exit(1);
}
inbuf = buf;
bufsiz = cnt;
}
}
/* Set buffer sizes and pointers for conversion, if any */
switch (Decode) {
default:
case AUDIO_ENCODING_NONE:
insiz = bufsiz;
outbuf = (char *)buf;
break;
case AUDIO_ENCODING_G721:
insiz = ADPCM_SIZE / 2;
outbuf = (char *)adpcm_buf;
initmux(1, 2);
break;
case AUDIO_ENCODING_G723:
insiz = (ADPCM_SIZE * 3) / 8;
outbuf = (char *)adpcm_buf;
initmux(3, 8);
break;
}
/*
* 8-bit audio isn't a problem, however 16-bit audio is.
* If the file is an endian that is different from the machine
* then the bytes will need to be swapped.
*
* Note: Because the G.72X conversions produce 8bit output,
* they don't require a byte swap before display and so
* this scheme works just fine. If a conversion is added
* that produces a 16 bit result and therefore requires
* byte swapping before output, then a mechanism
* for chaining the two conversions will have to be built.
*
* Note: The following if() could be simplified, but then
* it gets to be very hard to read. So it's left as is.
*/
if (File_hdr.bytes_per_unit == 2 &&
((!NetEndian && file_type == FILE_AIFF) ||
(!NetEndian && file_type == FILE_AU) ||
(NetEndian && file_type == FILE_WAV))) {
swapBytes = TRUE;
} else {
swapBytes = FALSE;
}
if (swapBytes) {
/* Read in interal number of sample frames. */
frame = File_hdr.bytes_per_unit * File_hdr.channels;
insiz = (SWAP_SIZE / frame) * frame;
/* make the output buffer the swap buffer. */
outbuf = (char *)swap_buf;
}
/*
* At this point, we're all ready to copy the data.
*/
if (mapaddr == 0) { /* Not mmapped, do it a buffer at a time. */
inbuf = buf;
frame = File_hdr.bytes_per_unit * File_hdr.channels;
rem = 0;
while ((cnt = read(ifd, inbuf+rem, insiz-rem)) >= 0) {
/*
* We need to ensure only an integral number of
* samples is ever written to the audio device.
*/
cnt = cnt + rem;
rem = cnt % frame;
cnt = cnt - rem;
/*
* If decoding adpcm, or swapping bytes do it
* now.
*
* We treat the swapping like a separate
* encoding here because the G.72X encodings
* decode to single byte output samples. If
* another encoding is added and it produces
* multi-byte output samples this will have to
* be changed.
*/
if (Decode == AUDIO_ENCODING_G721) {
outsiz = 0;
demux(1, cnt / File_hdr.channels);
for (c = 0; c < File_hdr.channels; c++) {
err = g721_decode(in_ch_data[c],
cnt / File_hdr.channels,
&File_hdr,
(void*)out_ch_data[c],
&tsize,
&adpcm_state[c]);
outsiz = outsiz + tsize;
if (err != AUDIO_SUCCESS) {
Error(stderr, MGET(
"%s: error decoding g721\n"),
prog);
errorStatus++;
break;
}
}
mux(outbuf);
cnt = outsiz;
} else if (Decode == AUDIO_ENCODING_G723) {
outsiz = 0;
demux(3, cnt / File_hdr.channels);
for (c = 0; c < File_hdr.channels; c++) {
err = g723_decode(in_ch_data[c],
cnt / File_hdr.channels,
&File_hdr,
(void*)out_ch_data[c],
&tsize,
&adpcm_state[c]);
outsiz = outsiz + tsize;
if (err != AUDIO_SUCCESS) {
Error(stderr, MGET(
"%s: error decoding g723\n"),
prog);
errorStatus++;
break;
}
}
mux(outbuf);
cnt = outsiz;
} else if (swapBytes) {
swab((char *)inbuf, outbuf, cnt);
}
/* If input EOF, write an eof marker */
err = write(Audio_fd, outbuf, cnt);
if (err < 0) {
perror("write");
errorStatus++;
break;
} else if (err != cnt) {
Error(stderr,
MGET("%s: output error: "), prog);
perror("");
errorStatus++;
break;
}
if (cnt == 0) {
break;
}
/* Move remainder to the front of the buffer */
if (rem != 0) {
(void *)memcpy(inbuf, inbuf + cnt, rem);
}
}
if (cnt < 0) {
Error(stderr, MGET("%s: error reading "), prog);
perror(Ifile);
errorStatus++;
}
} else { /* We're mmaped */
if ((Decode != AUDIO_ENCODING_NONE) || swapBytes) {
/* Transform data if we have to. */
for (i = 0; i <= len; i += cnt) {
cnt = insiz;
if ((i + cnt) > len) {
cnt = len - i;
}
if (Decode == AUDIO_ENCODING_G721) {
outsiz = 0;
demux(1, cnt / File_hdr.channels);
for (c = 0; c < File_hdr.channels;
c++) {
err = g721_decode(
in_ch_data[c],
cnt / File_hdr.channels,
&File_hdr,
(void*)out_ch_data[c],
&tsize,
&adpcm_state[c]);
outsiz = outsiz + tsize;
if (err != AUDIO_SUCCESS) {
Error(stderr, MGET(
"%s: error decoding "
"g721\n"), prog);
errorStatus++;
break;
}
}
mux(outbuf);
} else if
(Decode == AUDIO_ENCODING_G723) {
outsiz = 0;
demux(3,
cnt / File_hdr.channels);
for (c = 0;
c < File_hdr.channels;
c++) {
err = g723_decode(
in_ch_data[c],
cnt /
File_hdr.channels,
&File_hdr,
(void*)out_ch_data[c],
&tsize,
&adpcm_state[c]);
outsiz = outsiz + tsize;
if (err != AUDIO_SUCCESS) {
Error(stderr, MGET(
"%s: error "
"decoding g723\n"),
prog);
errorStatus++;
break;
}
}
mux(outbuf);
} else if (swapBytes) {
swab((char *)inbuf, outbuf,
cnt);
outsiz = cnt;
}
inbuf += cnt;
/* If input EOF, write an eof marker */
err = write(Audio_fd, (char *)outbuf,
outsiz);
if (err < 0) {
perror("write");
errorStatus++;
} else if (outsiz == 0) {
break;
}
}
} else {
/* write the whole thing at once! */
err = write(Audio_fd, inbuf, len);
if (err < 0) {
perror("write");
errorStatus++;
}
if (err != len) {
Error(stderr,
MGET("%s: output error: "), prog);
perror("");
errorStatus++;
}
err = write(Audio_fd, inbuf, 0);
if (err < 0) {
perror("write");
errorStatus++;
}
}
}
/* Free memory if decoding ADPCM */
switch (Decode) {
case AUDIO_ENCODING_G721:
case AUDIO_ENCODING_G723:
freemux();
break;
default:
break;
}
closeinput:;
if (mapaddr != 0)
(void) munmap(mapaddr, st.st_size);
(void) close(ifd); /* close input file */
if (Errdetect) {
cnt = 0;
audio_set_play_error(Audio_fd, (unsigned int *)&cnt);
if (cnt) {
Error(stderr,
MGET("%s: output underflow in %s\n"),
Ifile, prog);
errorStatus++;
}
}
nextfile:;
} while ((argc > 0) && (argc--, (Ifile = *argv++) != NULL));
/*
* Though drain is implicit on close(), it's performed here
* to ensure that the volume is reset after all output is complete.
*/
(void) audio_drain(Audio_fd, FALSE);
/* Flush any remaining audio */
(void) ioctl(Audio_fd, I_FLUSH, FLUSHW);
if (Volume != INT_MAX)
(void) audio_set_play_gain(Audio_fd, &Savevol);
if ((Audio_ctlfd >= 0) && (audio_cmp_hdr(&Save_hdr, &Dev_hdr) != 0)) {
(void) audio_set_play_config(Audio_fd, &Save_hdr);
}
(void) close(Audio_fd); /* close output */
return (errorStatus);
}
