Hello, I had a look at the driver for my platform and in its snd_pcm_hardware struct, it sets ".formats = SNDRV_PCM_FMTBIT_S16_LE" (no big endian format). Does the S16_BE format being used by alsalib/test/pcm get set in alsalib or elsewhere in the kernel? Thanks, John John Faith wrote: > 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
