>> I am trying to use plug to play audio files that are S16_LE but my
>> hardware only supports S32_LE. It is not working. Here is an example
>> of the problem using speaker-test. First I use S32_LE and it works as
>> expected. I then try S16_LE but it fails. Does this mean the plug
>> plugin cannot convert between these sample formats?
>>
>> Thanks,
>> Adam
>>
>
>Please use latest version of speaker-test and alsa-lib.
>
>and post struct snd_pcm_hardware of you driver
>
I am using the latest release of uClinux for Blackfin BF537 and do not
know how to configure and install the latest version of alsa-lib and
alsa-utils. I am starting to understand how struct snd_pcm_hardware
is used by the ALSA PCM code but you are correct to assume I may have
something wrong. Here is the struct:
static struct snd_pcm_hardware ourCS42448PcmHw =
{
.info = (SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER ),
.formats = SNDRV_PCM_FMTBIT_S32_LE,
.rates = SNDRV_PCM_RATE_48000,
.rate_min = 48000,
.rate_max = 48000,
.buffer_bytes_max = 32768,
.channels_min = 1,
.channels_max = 2,
.period_bytes_max = 32768,
.periods_min = 1,
.period_bytes_min = 8,
.periods_max = 4096,
};
Can you tell me how to configure and install the latest ALSA and
whether the snd_pcm_hardware is correct?
Thanks,
Adam
Adam Rosenberg
Software Engineer
Alcorn McBride Inc.
3300 South Hiawassee
Building 105
Orlando, FL 32835
(407) 296 - 5800 ext. 5490
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