#include <fcntl.h>
#include <dirent.h>
#include <sys/soundcard.h>
+#include <stdbool.h>
#include "para.h"
#include "fd.h"
#include "list.h"
#include "sched.h"
#include "ggo.h"
+#include "buffer_tree.h"
#include "write.h"
+#include "write_common.h"
#include "oss_write.cmdline.h"
#include "error.h"
return 1;
}
+static void oss_pre_select_btr(struct sched *s, struct task *t)
+{
+ struct writer_node *wn = container_of(t, struct writer_node, task);
+ struct private_oss_write_data *powd = wn->private_data;
+ int ret = btr_node_status(wn->btrn, wn->min_iqs, BTR_NT_LEAF);
+
+ t->error = 0;
+ if (ret < 0)
+ goto min_delay;
+ if (ret == 0)
+ return;
+ if (!powd)
+ goto min_delay;
+ para_fd_set(powd->fd, &s->wfds, &s->max_fileno);
+ return;
+min_delay:
+ s->timeout.tv_sec = 0;
+ s->timeout.tv_usec = 1;
+}
+
static int oss_post_select(struct sched *s, struct writer_node *wn)
{
int ret;
struct private_oss_write_data *powd = wn->private_data;
close(powd->fd);
+ oss_cmdline_parser_free(wn->conf);
free(powd);
}
* incorrectly believe that the device is still in 44.1 kHz mode when actually
* the speed is decreased to 22.05 kHz.
*/
-static int oss_open(struct writer_node *wn)
+static int oss_init(struct writer_node *wn, unsigned samplerate, unsigned channels)
{
- int ret, format = FORMAT, channels, samplerate;
+ int ret, format = FORMAT, ch, rate;
struct oss_write_args_info *conf = wn->conf;
- struct writer_node_group *wng = wn->wng;
- struct private_oss_write_data *powd;
+ struct private_oss_write_data *powd = wn->private_data;
PARA_INFO_LOG("opening %s\n", conf->device_arg);
ret = para_open(conf->device_arg, O_WRONLY, 0);
if (ret < 0)
return ret;
- powd = para_calloc(sizeof(*powd));
- wn->private_data = powd;
powd->fd = ret;
ret = mark_fd_nonblocking(powd->fd);
if (ret < 0)
if (format != FORMAT)
goto err;
/* set number of channels */
- if (!conf->channels_given && wng->channels)
- channels = *wng->channels;
+ if (!conf->channels_given && channels != 0)
+ ch = channels;
else
- channels = conf->channels_arg;
+ ch = conf->channels_arg;
ret = -E_BAD_CHANNEL_COUNT;
- if (channels == 0)
+ if (ch == 0)
goto err;
- powd->channels = channels;
- ret = ioctl(powd->fd, SNDCTL_DSP_CHANNELS, &channels);
+ powd->channels = ch;
+ ret = ioctl(powd->fd, SNDCTL_DSP_CHANNELS, &ch);
if (ret < 0) {
ret = -ERRNO_TO_PARA_ERROR(errno);
goto err;
}
- if (powd->channels != channels)
+ if (powd->channels != ch)
goto err;
- powd->bytes_per_frame = channels * 2;
+ powd->bytes_per_frame = ch * 2;
/*
* Set sampling rate
* device, the the highest possible speed is automatically used. The
* value actually used is returned as the new value of the argument.
*/
- if (!conf->samplerate_given && wng->samplerate)
- samplerate = *wng->samplerate;
+ if (!conf->samplerate_given && samplerate != 0)
+ rate = samplerate;
else
- samplerate = conf->samplerate_arg;
- powd->samplerate = samplerate;
- ret = ioctl(powd->fd, SNDCTL_DSP_SPEED, &samplerate);
+ rate = conf->samplerate_arg;
+ powd->samplerate = rate;
+ ret = ioctl(powd->fd, SNDCTL_DSP_SPEED, &rate);
if (ret < 0) {
ret = -ERRNO_TO_PARA_ERROR(errno);
goto err;
}
- if (samplerate != powd->samplerate) {
- int min = PARA_MIN(samplerate, powd->samplerate),
- max = PARA_MAX(samplerate, powd->samplerate);
+ if (rate != powd->samplerate) {
+ int min = PARA_MIN(rate, powd->samplerate),
+ max = PARA_MAX(rate, powd->samplerate);
/*
* Check whether the returned sample rate differs significantly
* from the requested one.
ret = -E_BAD_SAMPLERATE;
if (100 * max > 110 * min) /* more than 10% deviation */
goto err;
- PARA_NOTICE_LOG("using %dHz rather than %dHz\n", samplerate,
+ PARA_NOTICE_LOG("using %dHz rather than %dHz\n", rate,
powd->samplerate);
}
-
+ wn->min_iqs = powd->bytes_per_frame;
return 1;
err:
close(powd->fd);
return ret;
}
+static void oss_post_select_btr(__a_unused struct sched *s,
+ struct task *t)
+{
+ struct writer_node *wn = container_of(t, struct writer_node, task);
+ struct oss_write_args_info *conf = wn->conf;
+ struct private_oss_write_data *powd = wn->private_data;
+ struct btr_node *btrn = wn->btrn;
+ size_t frames, bytes;
+ int ret = btr_node_status(btrn, wn->min_iqs, BTR_NT_LEAF);
+ char *data;
+
+ if (ret < 0)
+ goto out;
+ if (ret == 0)
+ return;
+ if (powd->fd < 0) {
+ int32_t rate, ch;
+ ret = -1;
+ if (!conf->samplerate_given) /* config option trumps btr_exec */
+ ret = get_btr_samplerate(wn->btrn, &rate);
+ if (ret < 0)
+ rate = conf->samplerate_arg;
+ ret = -1;
+ if (!conf->channels_given)
+ ret = get_btr_channels(wn->btrn, &ch);
+ if (ret < 0)
+ ch = conf->channels_arg;
+ ret = oss_init(wn, rate, ch);
+ if (ret < 0)
+ goto out;
+ return;
+ }
+ bytes = btr_next_buffer(btrn, &data);
+ frames = bytes / powd->bytes_per_frame;
+ if (!frames) { /* eof and less than a single frame available */
+ ret = -E_OSS_EOF;
+ goto out;
+ }
+ ret = 0;
+ if (!FD_ISSET(powd->fd, &s->wfds))
+ goto out;
+ ret = write_nonblock(powd->fd, data, frames * powd->bytes_per_frame, 0);
+ if (ret < 0)
+ goto out;
+ btr_consume(btrn, ret);
+ ret = 0;
+out:
+ t->error = ret;
+}
+
+static int oss_open(struct writer_node *wn)
+{
+ struct writer_node_group *wng;
+ struct private_oss_write_data *powd;
+
+ powd = para_calloc(sizeof(*powd));
+ wn->private_data = powd;
+ if (!wn->btrn) {
+ wng = wn->wng;
+ return oss_init(wn, wng->samplerate ? *wng->samplerate : 0,
+ wng->channels? *wng->channels : 0);
+ }
+ powd->fd = -1;
+ return 1;
+}
+
__malloc static void *oss_parse_config(const char *options)
{
int ret;
return NULL;
}
+static void oss_free_config(void *conf)
+{
+ oss_cmdline_parser_free(conf);
+}
+
/**
* The init function of the oss writer.
*
w->open = oss_open;
w->close = oss_close;
w->pre_select = oss_pre_select;
+ w->pre_select_btr = oss_pre_select_btr;
w->post_select = oss_post_select;
+ w->post_select_btr = oss_post_select_btr;
w->parse_config = oss_parse_config;
+ w->free_config = oss_free_config;
w->shutdown = NULL;
w->help = (struct ggo_help) {
.short_help = oss_write_args_info_help,
projects / paraslash.git / blobdiff