The current behavior of snd_pcm_rewindable and snd_pcm_forwardable means that the returned value is only accurate to one period. Or maybe even meaningless if period interrupts are off. Fetch the up-to-date position of the hardware pointer, as that's what is wanted by callers.
Why do dmix need to support rewind/forward since it also set the slave in free run mode ?
Signed-off-by: Alexander E. Patrakov patrakov@gmail.com
src/pcm/pcm_dmix.c | 6 ++++++ src/pcm/pcm_dshare.c | 6 ++++++ src/pcm/pcm_dsnoop.c | 6 ++++++ src/pcm/pcm_hw.c | 6 ++++++ src/pcm/pcm_ioplug.c | 2 ++ src/pcm/pcm_plugin.c | 6 ++++++ 6 files changed, 32 insertions(+)
diff --git a/src/pcm/pcm_dmix.c b/src/pcm/pcm_dmix.c index babde6a..d9565f9 100644 --- a/src/pcm/pcm_dmix.c +++ b/src/pcm/pcm_dmix.c @@ -661,6 +661,9 @@ static int snd_pcm_dmix_pause(snd_pcm_t *pcm
ATTRIBUTE_UNUSED, int enable ATTRIB
static snd_pcm_sframes_t snd_pcm_dmix_rewindable(snd_pcm_t *pcm) {
int err = snd_pcm_dmix_hwsync(pcm);if (err < 0)return err; return snd_pcm_mmap_playback_hw_rewindable(pcm);}
@@ -744,6 +747,9 @@ static snd_pcm_sframes_t
snd_pcm_dmix_rewind(snd_pcm_t *pcm, snd_pcm_uframes_t f
static snd_pcm_sframes_t snd_pcm_dmix_forwardable(snd_pcm_t *pcm) {
int err = snd_pcm_dmix_hwsync(pcm);if (err < 0)return err; return snd_pcm_mmap_avail(pcm);}