[Libav-user] monotonic_raw timestamp setup seems buggy

[sylvain.bertrand at gmail.com]

Hi,

I am writting an alsa application and while working on pcm status timings, I
noticed that setting monotonic_raw timings in sw_params while the hardware
device plugin is already running with monotonic timings did not produce an error.

Follow the pcm dump which shows monotonic_raw being set on all plugins but the
already running hw plugin.

Is this a bug, or am I doing something the wrong way?

Plug PCM: Linear Integer <-> Linear Float conversion PCM (S32_LE)
Its setup is:
  stream       : PLAYBACK
  access       : RW_NONINTERLEAVED
  format       : FLOAT_LE
  subformat    : STD
  channels     : 2
  rate         : 48000
  exact rate   : 48000 (48000/1)
  msbits       : 32
  buffer_size  : 8192
  period_size  : 1024
  period_time  : 21333
  tstamp_mode  : ENABLE
  tstamp_type  : MONOTONIC_RAW
  period_step  : 1
  avail_min    : 1024
  period_event : 1
  start_threshold  : 1
  stop_threshold   : 8192
  silence_threshold: 0
  silence_size : 0
  boundary     : 4611686018427387904
Slave: Direct Stream Mixing PCM
Its setup is:
  stream       : PLAYBACK
  access       : MMAP_INTERLEAVED
  format       : S32_LE
  subformat    : STD
  channels     : 2
  rate         : 48000
  exact rate   : 48000 (48000/1)
  msbits       : 32
  buffer_size  : 8192
  period_size  : 1024
  period_time  : 21333
  tstamp_mode  : ENABLE
  tstamp_type  : MONOTONIC_RAW
  period_step  : 1
  avail_min    : 1024
  period_event : 1
  start_threshold  : 1
  stop_threshold   : 8192
  silence_threshold: 0
  silence_size : 0
  boundary     : 4611686018427387904
Hardware PCM card 0 'HDA ATI SB' device 0 subdevice 0
Its setup is:
  stream       : PLAYBACK
  access       : MMAP_INTERLEAVED
  format       : S32_LE
  subformat    : STD
  channels     : 2
  rate         : 48000
  exact rate   : 48000 (48000/1)
  msbits       : 32
  buffer_size  : 8192
  period_size  : 1024
  period_time  : 21333
  tstamp_mode  : ENABLE
  tstamp_type  : MONOTONIC
  period_step  : 1
  avail_min    : 1024
  period_event : 0
  start_threshold  : 1
  stop_threshold   : 0
  silence_threshold: 0
  silence_size : 0
  boundary     : 4611686018427387904
  appl_ptr     : 0
  hw_ptr       : 1484839806

cheers,

-- 
Sylvain