#include "string.h"
#include "list.h"
#include "sched.h"
+#include "ggo.h"
#include "write.h"
#include "alsa_write.cmdline.h"
#include "error.h"
snd_pcm_sw_params_t *swparams;
snd_pcm_uframes_t buffer_size, start_threshold, stop_threshold;
int err;
- snd_pcm_info_t *info;
snd_pcm_uframes_t period_size;
struct private_alsa_write_data *pad = para_calloc(sizeof(struct
private_alsa_write_data));
pad->channels = conf->channels_arg;
PARA_INFO_LOG("%d channel(s), %dHz\n", pad->channels, pad->samplerate);
w->private_data = pad;
- snd_pcm_info_alloca(&info);
err = snd_pcm_open(&pad->handle, conf->device_arg,
SND_PCM_STREAM_PLAYBACK, SND_PCM_NONBLOCK);
if (err < 0)
return -E_PCM_OPEN;
- if ((err = snd_pcm_info(pad->handle, info)) < 0)
- return -E_SND_PCM_INFO;
snd_pcm_hw_params_alloca(&hwparams);
snd_pcm_sw_params_alloca(&swparams);
stop_threshold) < 0)
return -E_STOP_THRESHOLD;
if (snd_pcm_sw_params(pad->handle, swparams) < 0)
- return -E_SW_PARAMS;
+ PARA_WARNING_LOG("unable to install sw params\n");
pad->bytes_per_frame = snd_pcm_format_physical_width(FORMAT)
* pad->channels / 8;
PARA_INFO_LOG("bytes per frame: %zu\n", pad->bytes_per_frame);
if (snd_pcm_nonblock(pad->handle, 1))
PARA_ERROR_LOG("failed to set nonblock mode\n");
- return period_size * pad->bytes_per_frame;
+ tv_add(now, &(struct timeval ){0, 100 * 1000}, &pad->next_chunk);
+ return 1;
}
static int alsa_write_pre_select(struct sched *s, struct writer_node *wn)
*/
void alsa_write_init(struct writer *w)
{
+ struct alsa_write_args_info dummy;
+
+ alsa_cmdline_parser_init(&dummy);
w->open = alsa_open;
w->close = alsa_close;
w->pre_select = alsa_write_pre_select;
w->post_select = alsa_write_post_select;
w->parse_config = alsa_parse_config;
w->shutdown = NULL; /* nothing to do */
+ w->help = (struct ggo_help) {
+ .short_help = alsa_write_args_info_help,
+ .detailed_help = alsa_write_args_info_detailed_help
+ };
}