On Thu, Jun 29, 2023 at 7:00 PM Fabio Estevam festevam@gmail.com wrote:
Hi Shengjiu,
On Wed, Jun 28, 2023 at 11:10 PM Shengjiu Wang shengjiu.wang@nxp.com wrote:
ASRC can be used on memory to memory case, define several functions for m2m usage and export them as function pointer.
Signed-off-by: Shengjiu Wang shengjiu.wang@nxp.com
Could you please explain what is the benefit of using M2M in the EASRC driver?
Users may want to get the ASRC output in the user space, then do mixing
with other streams before sending to DAC. so this patch-set is to use the v4l2 API for this usage, because there is no such API in ASoC.
A few weeks ago, an imx8mn user reported that the EASRC with the mainline kernel introduces huge delays.
Does M2M help with this aspect?
No, M2M can't help with the delays issue. The delay issue maybe caused by the buffer size or the prefilled data needs by EASRC.
Best regards wang shengjiu
Thanks