[PATCH v2,18/21] media: medkatek: vcodec: remove parse nal_info in kernel

From: Yunfei Dong
Date: Mon Nov 06 2023 - 07:06:08 EST


The hardware can parse syntax to get nal_info, needn't to use cpu.

Signed-off-by: Yunfei Dong <yunfei.dong@xxxxxxxxxxxx>
---
.../vcodec/decoder/vdec/vdec_h264_req_multi_if.c | 13 ++-----------
1 file changed, 2 insertions(+), 11 deletions(-)

diff --git a/drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_h264_req_multi_if.c b/drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_h264_req_multi_if.c
index a1a68487131c..2dfb3043493e 100644
--- a/drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_h264_req_multi_if.c
+++ b/drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_h264_req_multi_if.c
@@ -645,11 +645,10 @@ static int vdec_h264_slice_lat_decode(void *h_vdec, struct mtk_vcodec_mem *bs,
struct vdec_h264_slice_inst *inst = h_vdec;
struct vdec_vpu_inst *vpu = &inst->vpu;
struct mtk_video_dec_buf *src_buf_info;
- int nal_start_idx, err, timeout = 0;
+ int err, timeout = 0;
unsigned int data[2];
struct vdec_lat_buf *lat_buf;
struct vdec_h264_slice_share_info *share_info;
- unsigned char *buf;

if (vdec_msg_queue_init(&inst->ctx->msg_queue, inst->ctx,
vdec_h264_slice_core_decode,
@@ -673,14 +672,6 @@ static int vdec_h264_slice_lat_decode(void *h_vdec, struct mtk_vcodec_mem *bs,
share_info = lat_buf->private_data;
src_buf_info = container_of(bs, struct mtk_video_dec_buf, bs_buffer);

- buf = (unsigned char *)bs->va;
- nal_start_idx = mtk_vdec_h264_find_start_code(buf, bs->size);
- if (nal_start_idx < 0) {
- err = -EINVAL;
- goto err_free_fb_out;
- }
-
- inst->vsi->dec.nal_info = buf[nal_start_idx];
lat_buf->src_buf_req = src_buf_info->m2m_buf.vb.vb2_buf.req_obj.req;
v4l2_m2m_buf_copy_metadata(&src_buf_info->m2m_buf.vb, &lat_buf->ts_info, true);

@@ -689,7 +680,7 @@ static int vdec_h264_slice_lat_decode(void *h_vdec, struct mtk_vcodec_mem *bs,
goto err_free_fb_out;

if (!inst->ctx->is_secure_playback)
- vdec_h264_insert_startcode(inst->ctx->dev, buf, &bs->size,
+ vdec_h264_insert_startcode(inst->ctx->dev, bs->va, &bs->size,
&share_info->h264_slice_params.pps);

*res_chg = inst->resolution_changed;
--
2.18.0