On 08/25/2014 11:23 AM, Jassi Brar wrote:
> On Mon, Aug 25, 2014 at 2:14 PM, Daniel Mack <daniel@xxxxxxxxxx> wrote:
>> The easiest is probably really to just calculate correct packet sizes
>> and stick to them. After all, the actual clock is really arbitrary, we
>> just have to pick something that is in the range of the sample rate.
>>
>> I'll cook up an alternative patch and do some tests with Sebastian off-list.
>>
> How about configuring bInterval and wMaxPacketSize to get the desired rate?
>
> For ex, 48KHz/2/S16, we need 192bytes/millisec. So we set bInterval=1
> (or 4 for HS) and wMaxPacketSize=192 for that configuration. For
> 44.1KHz/2/S16 we need 176.4bytes/millisec, so we set
> wMaxPacketSize=178 and send packets of length in {176, 176, 176,
> 176,178} pattern.
Yes, something like that. But you can't modify wMaxPacketSize in
accordance to the sample rate and format, but just send short packets.
I'm currently testing a patch which does that.
Daniel
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