mirrors/alsa-lib
1
0
Fork 0
mirror of https://github.com/alsa-project/alsa-lib.git synced 2025-11-02 09:01:48 -05:00
Code Issues Projects Releases Packages Wiki Activity Actions

Add support for monotonic timestamps

Browse source
This commit is contained in:
Jaroslav Kysela 2008-01-09 11:13:34 +01:00
parent a73ad3f265
commit 309a274454
28 changed files with 77 additions and 25 deletions
Download patch file Download diff file Expand all files Collapse all files

17
src/pcm/pcm_hw.c
View file

@ -923,9 +923,8 @@ int snd_pcm_hw_open_fd(snd_pcm_t **pcmp, const char *name,
int fd, int mmap_emulation ATTRIBUTE_UNUSED,
int sync_ptr_ioctl)
{
int ver;
int ver, mode, monotonic = 0;
long fmode;
int mode;
snd_pcm_t *pcm = NULL;
snd_pcm_hw_t *hw = NULL;
snd_pcm_info_t info;
@ -980,8 +979,19 @@ int snd_pcm_hw_open_fd(snd_pcm_t **pcmp, const char *name,
ret = -errno;
SNDMSG("TSTAMP failed\n");
return ret;
}
}
}
#ifdef HAVE_CLOCK_GETTIME
else if (SNDRV_PROTOCOL_VERSION(2, 0, 9) >= ver) {
int on = SNDRV_PCM_TSTAMP_TYPE_MONOTONIC;
if (ioctl(fd, SNDRV_PCM_IOCTL_TTSTAMP, &on) < 0) {
ret = -errno;
SNDMSG("TTSTAMP failed\n");
return ret;
}
monotonic = 1;
}
#endif
hw = calloc(1, sizeof(snd_pcm_hw_t));
if (!hw) {
@ -1012,6 +1022,7 @@ int snd_pcm_hw_open_fd(snd_pcm_t **pcmp, const char *name,
pcm->private_data = hw;
pcm->poll_fd = fd;
pcm->poll_events = info.stream == SND_PCM_STREAM_PLAYBACK ? POLLOUT : POLLIN;
pcm->monotonic = monotonic;
ret = snd_pcm_hw_mmap_status(pcm);
if (ret < 0) {