[alsa-devel] [PATCH] pcm: rate: fix hw_ptr exceed the boundary

For long time test case, the hw_ptr will exceed the boundary, then cause the avail size wrong.

Signed-off-by: Shengjiu Wang shengjiu.wang@freescale.com --- src/pcm/pcm_rate.c | 2 ++ 1 file changed, 2 insertions(+)

diff --git a/src/pcm/pcm_rate.c b/src/pcm/pcm_rate.c index 7f667d4..2563d82 100644 --- a/src/pcm/pcm_rate.c +++ b/src/pcm/pcm_rate.c @@ -574,6 +574,8 @@ static inline void snd_pcm_rate_sync_hwptr(snd_pcm_t *pcm) rate->hw_ptr = (slave_hw_ptr / rate->gen.slave->period_size) * pcm->period_size + rate->ops.input_frames(rate->obj, slave_hw_ptr % rate->gen.slave->period_size); + + rate->hw_ptr %= pcm->boundary; }

static int snd_pcm_rate_hwsync(snd_pcm_t *pcm)