[v2,0/5] visl: Adapt output frames for reference comparison

Message

Detlev Casanova Oct. 24, 2023, 7:09 p.m. UTC

When using visl in automated tests, we need to have output frames that
can be compared to reference frames or hash of those to validate that
the whole pipeline is working properly.

Add a "stable_output" module parameter to make sure that a given input
stream always outputs the same frames.
This is done by skipping information like queues status and pointer
values.

This also adds some stable variation in the frames so that different
input give more different output.

Changes since v1:
 - Fix typo in parameter documentation

Detlev Casanova (5):
  media: visl: Fix params permissions/defaults mismatch
  media: visl: Add a stable_output parameter
  doc: visl: Document stable_output parameter
  visl: Add a codec specific variability parameter
  doc: visl: Document codec_variability parameter

 Documentation/admin-guide/media/visl.rst    |   9 ++
 drivers/media/test-drivers/visl/visl-core.c |  12 +-
 drivers/media/test-drivers/visl/visl-dec.c  | 152 +++++++++++++-------
 drivers/media/test-drivers/visl/visl.h      |   2 +
 4 files changed, 120 insertions(+), 55 deletions(-)