Hello,
I am using alsa-lib 1.0.15 on an embedded PowerPC board. I can play
audio with aplay, but gstreamer fails, so I built and ran the 'pcm' app
in alsa-lib-1.0.15/test/. pcm gives:
# export LIBASOUND_DEBUG=1
# ./pcm
Playback device is plughw:0,0
Stream parameters are 44100Hz, S16_BE, 1 channels
Sine wave rate is 440.0000Hz
Using transfer method: write
ALSA lib pcm_plug.c:773:(snd_pcm_plug_hw_refine_schange) Unable to find
an usable access for 'plughw:0,0'
ALSA ERROR hw_params: set (FORMAT)
value = S16_BE : Invalid argument
ACCESS: RW_INTERLEAVED
FORMAT: S8 U8 S16_LE S16_BE U16_LE U16_BE S24_LE S24_BE U24_LE U24_BE
S32_LE S32_BE U32_LE U32_BE FLOAT_LE FLOAT_BE
SUBFORMAT: STD
SAMPLE_BITS: [4 64]
FRAME_BITS: [4 640000]
CHANNELS: [1 10000]
RATE: [4000 4294967295)
PERIOD_TIME: [25000 300000]
PERIOD_SIZE: [100 1288490189)
PERIOD_BYTES: [50 4294967295)
PERIODS: (0 12884902)
BUFFER_TIME: [1 4294967295]
BUFFER_SIZE: [100 1288490188]
BUFFER_BYTES: [50 4294967295]
TICK_TIME: 4000
Sample format not available for playback: Invalid argument
Setting of hwparams failed: Invalid argument
Is the driver saying it can do format S16_BE somewhere, but fails when
the format is actually set? How can I dig deeper on this?
Thanks in advance for any ideas!
,
John
_______________________________________________
Alsa-devel mailing list
Alsa-devel@xxxxxxxxxxxxxxxx
http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
