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media: allegro: add helper to get entropy mode

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The driver only supports CAVLC for H.264, but HEVC only uses CABAC. As
the driver has to explicitly tell the MCU to use CABAC for HEVC, add a
helper function to get the entropy mode.

Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Michael Tretter 2020-12-03 12:01:02 +01:00 committed by Mauro Carvalho Chehab
parent 2b6e6e5b26
commit 655ef9f9e8
1 changed files with 9 additions and 0 deletions
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9
drivers/media/platform/allegro-dvt/allegro-core.c
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@ -944,6 +944,14 @@ static s16 get_qp_delta(int minuend, int subtrahend)
return minuend - subtrahend;
}
static u32 allegro_channel_get_entropy_mode(struct allegro_channel *channel)
{
#define ALLEGRO_ENTROPY_MODE_CAVLC 0
#define ALLEGRO_ENTROPY_MODE_CABAC 1
return ALLEGRO_ENTROPY_MODE_CAVLC;
}
static int fill_create_channel_param(struct allegro_channel *channel,
struct create_channel_param *param)
{
@ -974,6 +982,7 @@ static int fill_create_channel_param(struct allegro_channel *channel,
param->temporal_mvp_enable = channel->temporal_mvp_enable;
param->dbf_ovr_en = channel->dbf_ovr_en;
param->entropy_mode = allegro_channel_get_entropy_mode(channel);
param->rdo_cost_mode = 1;
param->custom_lda = 1;
param->lf = 1;