diff options
| author | dvdli <dvdli@google.com> | 2020-10-28 22:22:27 +0800 |
|---|---|---|
| committer | dvdli <dvdli@google.com> | 2020-10-28 22:22:27 +0800 |
| commit | 72216211c7a5f29510a2f50dbdc70b35af44fb3a (patch) | |
| tree | d1ab25010856d30cc7eeea561354996a28cb89b2 | |
| parent | faaa6972a2846b43366887bc0779c6c1be20a16f (diff) | |
AOSP CL "Add pcm_get_poll_fd"
https://android.googlesource.com/platform/external/tinyalsa/+/b42510d55bafc96805a44bd6ac40faac28ebd219
commit b42510d55bafc96805a44bd6ac40faac28ebd219
author Dylan Reid <dgreid@chromium.org>
Add pcm_get_poll_fd
Similar to ALSA snd_pcm_get_poll_fd, this will allow a user to wait for
a sound device to have data in a poll(2) call. The hotword thread will
use this to wait for a message on its socket or for audio data to become
ready.
Change-Id: I61375a73d7a842b00362fc707c12f99aa18e0bdf
Signed-off-by: Dylan Reid <dgreid@chromium.org>
| -rw-r--r-- | include/tinyalsa/pcm.h | 2 | ||||
| -rw-r--r-- | src/pcm.c | 5 |
2 files changed, 7 insertions, 0 deletions
diff --git a/include/tinyalsa/pcm.h b/include/tinyalsa/pcm.h index a49746c..99ca786 100644 --- a/include/tinyalsa/pcm.h +++ b/include/tinyalsa/pcm.h @@ -343,6 +343,8 @@ int pcm_mmap_commit(struct pcm *pcm, unsigned int offset, unsigned int frames); int pcm_mmap_avail(struct pcm *pcm); +int pcm_get_poll_fd(struct pcm *pcm); + int pcm_link(struct pcm *pcm1, struct pcm *pcm2); int pcm_unlink(struct pcm *pcm); @@ -1344,6 +1344,11 @@ static int pcm_mmap_transfer_areas(struct pcm *pcm, char *buf, return count; } +int pcm_get_poll_fd(struct pcm *pcm) +{ + return pcm->fd; +} + int pcm_avail_update(struct pcm *pcm) { pcm_sync_ptr(pcm, SNDRV_PCM_SYNC_PTR_APPL|SNDRV_PCM_SYNC_PTR_AVAIL_MIN); |