On Wed, 2019-06-05 at 15:39 +0200, Hans Verkuil wrote: > Hi Maxime, > > I am wondering if this flag shouldn't be inverted: you set > V4L2_FMT_FLAG_DYN_RESOLUTION if dynamic resolution is supported, > otherwise it isn't. > > Can all the existing mainlined codec drivers handle midstream > resolution changes? > > s5p-mfc, venus and mediatek can, but I see no SOURCE_CHANGE event in > the coda drivers, so I suspect that that can't handle this. > > Philipp, what is the status of the coda driver for dynamic resolution > changes? FTR, to my knowledge there is no dynamic resolution change support in the firmware, as there is no signal (interrupt nor picture run return value) to indicate that different headers were parsed. I am planning to add the initial source change event required by the current decoder API documentation, but I am afraid there will be no support for source changes due to mid-stream resolution changes due to firmware limitations. regards Philipp
