On Wednesday 25 Feb 2009 18:13:47 Takashi Iwai wrote:
diff --git a/src/pcm/pcm_hw.c b/src/pcm/pcm_hw.c index e9ce092..5211d1c 100644 --- a/src/pcm/pcm_hw.c +++ b/src/pcm/pcm_hw.c @@ -131,6 +131,10 @@ struct timespec snd_pcm_hw_fast_tstamp(snd_pcm_t *pcm) static int sync_ptr1(snd_pcm_hw_t *hw, unsigned int flags) { int err; + long old_hwptr, new_hwptr; + long old_applptr, new_applptr; + old_hwptr = hw->sync_ptr->s.status.hw_ptr; + old_applptr = hw->sync_ptr->c.control.appl_ptr; hw->sync_ptr->flags = flags; err = ioctl((hw)->fd, SNDRV_PCM_IOCTL_SYNC_PTR, (hw)->sync_ptr); if (err < 0) { @@ -138,6 +142,11 @@ static int sync_ptr1(snd_pcm_hw_t *hw, unsigned int flags) SYSMSG("SNDRV_PCM_IOCTL_SYNC_PTR failed"); return err; } + new_hwptr = hw->sync_ptr->s.status.hw_ptr; + new_applptr = hw->sync_ptr->c.control.appl_ptr; + printf("sync_ptr1: %ld(%ld), %ld(%ld)\n", + new_hwptr, new_hwptr - old_hwptr, + new_applptr, new_applptr - old_applptr); return 0; }
With sync_ptr I cannot reproduce the very large numbers. Here's a typical log. (Attached).
Regards
Clive