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video: driver: tune dcvs and batching buffer count

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[1] add dcvs cushion buffers, only if core supports dcvs
[2] update buffer_count for dcvs & batching for priority
    static control.
[3] add max_fps & max_mbpf checks to disable decode_batching.
[4] add low_latency check in msm_vidc_allow_dcvs api.

Change-Id: Iafb7ad4aa601a0a3753e30475a8709f261719b0c
Signed-off-by: Govindaraj Rajagopal <grajagop@codeaurora.org>
This commit is contained in:
Govindaraj Rajagopal
2021-05-26 09:40:55 +05:30
parent 421d199f44
commit 63a42011b2
5 changed files with 52 additions and 7 deletions
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14
driver/vidc/src/msm_vidc_control.c
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@@ -644,7 +644,7 @@ static int msm_vidc_update_buffer_count_if_needed(struct msm_vidc_inst* inst,
int rc = 0;
bool update_input_port = false, update_output_port = false;
if (!inst || !inst->capabilities || !ctrl) {
if (!inst || !ctrl) {
d_vpr_e("%s: invalid parameters\n", __func__);
return -EINVAL;
}
@@ -658,6 +658,7 @@ static int msm_vidc_update_buffer_count_if_needed(struct msm_vidc_inst* inst,
update_input_port = true;
break;
case V4L2_CID_MPEG_VIDC_THUMBNAIL_MODE:
case V4L2_CID_MPEG_VIDC_PRIORITY:
update_input_port = true;
update_output_port = true;
break;
@@ -752,6 +753,17 @@ int msm_v4l2_op_s_ctrl(struct v4l2_ctrl *ctrl)
rc = msm_vidc_adjust_session_priority(inst, ctrl);
if (rc)
return rc;
/**
* This is the last static s_ctrl from client(commit point). So update
* input & output counts to reflect final buffer counts based on dcvs
* & decoder_batching enable/disable. So client is expected to query
* for final counts after setting priority control.
*/
if (is_decode_session(inst))
inst->decode_batch.enable = msm_vidc_allow_decode_batch(inst);
msm_vidc_allow_dcvs(inst);
}
if (is_meta_ctrl(ctrl->id)) {
if (cap_id == META_DPB_TAG_LIST) {