struct private_oss_write_data {
/** The file handle of the device. */
int fd;
- /**
- * The samplerate given by command line option or the decoder
- * of the writer node group.
- */
- int samplerate;
- /**
- * The number of channels, given by command line option or the
- * decoder of the writer node group.
- */
- int channels;
/** Four bytes for stereo streams, two bytes for mono streams. */
int bytes_per_frame;
};
-static int oss_pre_select(struct sched *s, struct writer_node *wn)
-{
- struct private_oss_write_data *powd = wn->private_data;
- struct writer_node_group *wng = wn->wng;
-
- if (*wng->loaded - wn->written < powd->bytes_per_frame)
- return 0;
- para_fd_set(powd->fd, &s->wfds, &s->max_fileno);
- 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);
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;
- struct writer_node_group *wng = wn->wng;
- size_t frames, bytes = *wng->loaded - wn->written;
- char *data = *wng->bufp + wn->written;
-
- if (*wng->input_error < 0 && bytes < powd->bytes_per_frame) {
- wn->written = *wng->loaded;
- return *wng->input_error;
- }
- frames = bytes / powd->bytes_per_frame;
- if (!frames) /* less than a single frame available */
- goto out;
- if (!FD_ISSET(powd->fd, &s->wfds))
- goto out;
- ret = write_nonblock(powd->fd, data, frames * powd->bytes_per_frame, 0);
- if (ret < 0)
- return ret;
- wn->written += ret;
-out:
- return 1;
+ sched_min_delay(s);
+ else if (ret > 0)
+ para_fd_set(powd->fd, &s->wfds, &s->max_fileno);
}
static void oss_close(struct writer_node *wn)
struct private_oss_write_data *powd = wn->private_data;
close(powd->fd);
- oss_cmdline_parser_free(wn->conf);
free(powd);
}
*/
static int oss_init(struct writer_node *wn, unsigned samplerate, unsigned channels)
{
- int ret, format = FORMAT, ch, rate;
+ int ret, format = FORMAT;
+ unsigned ch, rate;
struct oss_write_args_info *conf = wn->conf;
struct private_oss_write_data *powd = wn->private_data;
if (format != FORMAT)
goto err;
/* set number of channels */
- if (!conf->channels_given && channels != 0)
- ch = channels;
- else
- ch = conf->channels_arg;
ret = -E_BAD_CHANNEL_COUNT;
- if (ch == 0)
+ if (channels == 0)
goto err;
- powd->channels = ch;
+ ch = channels;
ret = ioctl(powd->fd, SNDCTL_DSP_CHANNELS, &ch);
if (ret < 0) {
ret = -ERRNO_TO_PARA_ERROR(errno);
goto err;
}
- if (powd->channels != ch)
+ ret = -E_BAD_CHANNEL_COUNT;
+ if (ch != channels)
goto err;
powd->bytes_per_frame = ch * 2;
* 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 && samplerate != 0)
- rate = samplerate;
- else
- rate = conf->samplerate_arg;
- powd->samplerate = rate;
+ rate = samplerate;
ret = ioctl(powd->fd, SNDCTL_DSP_SPEED, &rate);
if (ret < 0) {
ret = -ERRNO_TO_PARA_ERROR(errno);
goto err;
}
- if (rate != powd->samplerate) {
- int min = PARA_MIN(rate, powd->samplerate),
- max = PARA_MAX(rate, powd->samplerate);
+ if (rate != samplerate) {
+ unsigned min = PARA_MIN(rate, samplerate),
+ max = PARA_MAX(rate, samplerate);
/*
* Check whether the returned sample rate differs significantly
* from the requested one.
if (100 * max > 110 * min) /* more than 10% deviation */
goto err;
PARA_NOTICE_LOG("using %dHz rather than %dHz\n", rate,
- powd->samplerate);
+ samplerate);
}
wn->min_iqs = powd->bytes_per_frame;
return 1;
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;
}
int ret;
struct oss_write_args_info *conf = para_calloc(sizeof(*conf));
- PARA_INFO_LOG("options: %s, %zd\n", options, strcspn(options, " \t"));
ret = oss_cmdline_parser_string(options, conf, "oss_write");
if (ret)
goto err_out;
oss_cmdline_parser_init(&dummy);
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;
projects / paraslash.git / blobdiff