ref: baa718b3cfdebe3d2b8c6dc8223c9fbfd62acb80
parent: 361710b16b1b6e564351178000d871f66a334849
author: cbagwell <cbagwell>
date: Tue Nov 30 16:45:56 EST 1999
Added latest alsa updates.
--- a/src/alsa.c
+++ b/src/alsa.c
@@ -18,6 +18,7 @@
#endif
#include <unistd.h>
#include <stdlib.h>
+#include <string.h>
#include <stdio.h>
#include <fcntl.h>
#include <linux/asound.h>
@@ -50,31 +51,31 @@
ft_t ft;
{
int bps, fmt, size;
- snd_pcm_record_info_t r_info;
+ snd_pcm_capture_info_t c_info;
snd_pcm_format_t format;
- snd_pcm_record_params_t r_params;
+ snd_pcm_capture_params_t c_params;
- memset(&r_info, 0, sizeof(r_info));
- ioctl(fileno(ft->fp), SND_PCM_IOCTL_RECORD_INFO, &r_info);
+ memset(&c_info, 0, sizeof(c_info));
+ ioctl(fileno(ft->fp), SND_PCM_IOCTL_CAPTURE_INFO, &c_info);
ft->file.count = 0;
ft->file.pos = 0;
ft->file.eof = 0;
- ft->file.size = r_info.buffer_size;
+ ft->file.size = c_info.buffer_size;
if ((ft->file.buf = malloc (ft->file.size)) == NULL) {
fail("unable to allocate output buffer of size %d", ft->file.size);
}
- if (ft->info.rate < r_info.min_rate) ft->info.rate = 2 * r_info.min_rate;
- else if (ft->info.rate > r_info.max_rate) ft->info.rate = r_info.max_rate;
- if (ft->info.channels == -1) ft->info.channels = r_info.min_channels;
- else if (ft->info.channels > r_info.max_channels) ft->info.channels = r_info.max_channels;
+ if (ft->info.rate < c_info.min_rate) ft->info.rate = 2 * c_info.min_rate;
+ else if (ft->info.rate > c_info.max_rate) ft->info.rate = c_info.max_rate;
+ if (ft->info.channels == -1) ft->info.channels = c_info.min_channels;
+ else if (ft->info.channels > c_info.max_channels) ft->info.channels = c_info.max_channels;
if (ft->info.size == -1) {
- if ((r_info.hw_formats & SND_PCM_FMT_U8) || (r_info.hw_formats & SND_PCM_FMT_S8))
+ if ((c_info.hw_formats & SND_PCM_FMT_U8) || (c_info.hw_formats & SND_PCM_FMT_S8))
ft->info.size = BYTE;
else
ft->info.size = WORD;
}
if (ft->info.style == -1) {
- if ((r_info.hw_formats & SND_PCM_FMT_S16_LE) || (r_info.hw_formats & SND_PCM_FMT_S8))
+ if ((c_info.hw_formats & SND_PCM_FMT_S16_LE) || (c_info.hw_formats & SND_PCM_FMT_S8))
ft->info.style = SIGN2;
else
ft->info.style = UNSIGNED;
@@ -83,12 +84,12 @@
switch (ft->info.style)
{
case SIGN2:
- if (!(r_info.hw_formats & SND_PCM_FMT_S8))
+ if (!(c_info.hw_formats & SND_PCM_FMT_S8))
fail("ALSA driver does not support signed byte samples");
fmt = SND_PCM_SFMT_S8;
break;
case UNSIGNED:
- if (!(r_info.hw_formats & SND_PCM_FMT_U8))
+ if (!(c_info.hw_formats & SND_PCM_FMT_U8))
fail("ALSA driver does not support unsigned byte samples");
fmt = SND_PCM_SFMT_U8;
break;
@@ -101,12 +102,12 @@
switch (ft->info.style)
{
case SIGN2:
- if (!(r_info.hw_formats & SND_PCM_FMT_S16_LE))
+ if (!(c_info.hw_formats & SND_PCM_FMT_S16_LE))
fail("ALSA driver does not support signed word samples");
fmt = SND_PCM_SFMT_S16_LE;
break;
case UNSIGNED:
- if (!(r_info.hw_formats & SND_PCM_FMT_U16_LE))
+ if (!(c_info.hw_formats & SND_PCM_FMT_U16_LE))
fail("ALSA driver does not support unsigned word samples");
fmt = SND_PCM_SFMT_U16_LE;
break;
@@ -120,7 +121,7 @@
format.format = fmt;
format.rate = ft->info.rate;
format.channels = ft->info.channels;
- ioctl(fileno(ft->fp), SND_PCM_IOCTL_RECORD_FORMAT, &format);
+ ioctl(fileno(ft->fp), SND_PCM_IOCTL_CAPTURE_FORMAT, &format);
size = ft->file.size;
bps = format.rate * format.channels;
@@ -128,10 +129,10 @@
bps >>= 2;
while (size > bps) size >>= 1;
if (size < 16) size = 16;
- memset(&r_params, 0, sizeof(r_params));
- r_params.fragment_size = size;
- r_params.fragments_min = 1;
- ioctl(fileno(ft->fp), SND_PCM_IOCTL_RECORD_PARAMS, &r_params);
+ memset(&c_params, 0, sizeof(c_params));
+ c_params.fragment_size = size;
+ c_params.fragments_min = 1;
+ ioctl(fileno(ft->fp), SND_PCM_IOCTL_CAPTURE_PARAMS, &c_params);
/* Change to non-buffered I/O */
setvbuf(ft->fp, NULL, _IONBF, sizeof(char) * ft->file.size);