Re: [PATCH 04/23] ASoC: soc-compress: Implement trigger FE-BE sequencing as with normal PCMs

[Pierre-Louis Bossart <pierre-louis.bossart@linux.dev>]

On 9/7/26 18:53, Vinod Koul wrote:
> On 07-09-26, 17:03, Péter Ujfalusi wrote:
>>
>>
>> On 07/09/2026 14:26, Pierre-Louis Bossart wrote:
>>>>> ...otherwise it'll end up with -EINVAL instead of getting passed
>>>>> through.  Also a switch statement would be a bit more idiomatic.
>>>>
>>>> OK, I will add the NEXT_TRACK and convert the if to switch.
>>>
>>> ICYMI for testing, NEXT_TRACK and PARTIAL_DRAIN are only enabled in the
>>> 'fcplay' application with the '-p 1' argument for gapless playback, not
>>> in the initial cplay application.
>>
>> With SOF/Intel/IPC4 we can only support DRAIN, NEXT_TRACK and
>> PARTIAL_DRAIN are not supported, but there were mismatch between fcplay
> 
> Those should be optional always. Gapless support should not be mandatory
well in practice it's a non-negotiable requirement from users... We had
to add this as the request of the Android team, and it's a standard
feature on most players, not a nice-to-have.

Note that the NEXT_TRACK only works if the two consecutive tracks have
the same format, if the platform wants 'perceived' gapless playback with
a x-fade then two devices are required.