lkml.org 
[lkml]   [2019]   [Sep]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[RFC 08/12] media: hantro: Fix H264 decoding of field encoded content
Date
This need code cleanup and formatting

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
---
.../staging/media/hantro/hantro_g1_h264_dec.c | 26 ++--
drivers/staging/media/hantro/hantro_h264.c | 126 ++++++++++++------
drivers/staging/media/hantro/hantro_hw.h | 4 +
3 files changed, 100 insertions(+), 56 deletions(-)

diff --git a/drivers/staging/media/hantro/hantro_g1_h264_dec.c b/drivers/staging/media/hantro/hantro_g1_h264_dec.c
index 16f21d258f6a..bc628ef73b29 100644
--- a/drivers/staging/media/hantro/hantro_g1_h264_dec.c
+++ b/drivers/staging/media/hantro/hantro_g1_h264_dec.c
@@ -130,28 +130,20 @@ static void set_params(struct hantro_ctx *ctx)

static void set_ref(struct hantro_ctx *ctx)
{
+ const struct v4l2_ctrl_h264_decode_params *dec_param;
+ const struct v4l2_ctrl_h264_slice_params *slice;
struct v4l2_h264_dpb_entry *dpb = ctx->h264_dec.dpb;
const u8 *b0_reflist, *b1_reflist, *p_reflist;
struct hantro_dev *vpu = ctx->dev;
- u32 dpb_longterm = 0;
- u32 dpb_valid = 0;
int reg_num;
u32 reg;
int i;

- /*
- * Set up bit maps of valid and long term DPBs.
- * NOTE: The bits are reversed, i.e. MSb is DPB 0.
- */
- for (i = 0; i < HANTRO_H264_DPB_SIZE; ++i) {
- if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE)
- dpb_valid |= BIT(HANTRO_H264_DPB_SIZE - 1 - i);
+ dec_param = ctx->h264_dec.ctrls.decode;
+ slice = ctx->h264_dec.ctrls.slices;

- if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM)
- dpb_longterm |= BIT(HANTRO_H264_DPB_SIZE - 1 - i);
- }
- vdpu_write_relaxed(vpu, dpb_valid << 16, G1_REG_VALID_REF);
- vdpu_write_relaxed(vpu, dpb_longterm << 16, G1_REG_LT_REF);
+ vdpu_write_relaxed(vpu, ctx->h264_dec.dpb_valid, G1_REG_VALID_REF);
+ vdpu_write_relaxed(vpu, ctx->h264_dec.dpb_longterm, G1_REG_LT_REF);

/*
* Set up reference frame picture numbers.
@@ -223,10 +215,8 @@ static void set_ref(struct hantro_ctx *ctx)

/* Set up addresses of DPB buffers. */
for (i = 0; i < HANTRO_H264_DPB_SIZE; i++) {
- struct vb2_buffer *buf = hantro_h264_get_ref_buf(ctx, i);
-
- vdpu_write_relaxed(vpu, vb2_dma_contig_plane_dma_addr(buf, 0),
- G1_REG_ADDR_REF(i));
+ dma_addr_t addr = hantro_h264_get_ref_dma_addr(ctx, i);
+ vdpu_write_relaxed(vpu, addr, G1_REG_ADDR_REF(i));
}
}

diff --git a/drivers/staging/media/hantro/hantro_h264.c b/drivers/staging/media/hantro/hantro_h264.c
index a77cc28e180a..85c86d728b1a 100644
--- a/drivers/staging/media/hantro/hantro_h264.c
+++ b/drivers/staging/media/hantro/hantro_h264.c
@@ -228,17 +228,65 @@ static void prepare_table(struct hantro_ctx *ctx)
{
const struct hantro_h264_dec_ctrls *ctrls = &ctx->h264_dec.ctrls;
const struct v4l2_ctrl_h264_decode_params *dec_param = ctrls->decode;
+ const struct v4l2_ctrl_h264_slice_params *slices = ctrls->slices;
struct hantro_h264_dec_priv_tbl *tbl = ctx->h264_dec.priv.cpu;
const struct v4l2_h264_dpb_entry *dpb = ctx->h264_dec.dpb;
+ u32 dpb_longterm = 0;
+ u32 dpb_valid = 0;
int i;

+ /*
+ * Set up bit maps of valid and long term DPBs.
+ * NOTE: The bits are reversed, i.e. MSb is DPB 0.
+ */
+ if ((slices[0].flags & V4L2_H264_SLICE_FLAG_FIELD_PIC) || (slices[0].flags & V4L2_H264_SPS_FLAG_MB_ADAPTIVE_FRAME_FIELD)) {
+ for (i = 0; i < HANTRO_H264_DPB_SIZE * 2; ++i) {
+ // check for correct reference use
+ u32 flag = (i & 0x1) ? V4L2_H264_DPB_ENTRY_FLAG_REF_BOTTOM : V4L2_H264_DPB_ENTRY_FLAG_REF_TOP;
+ if (dpb[i / 2].flags & flag)
+ dpb_valid |= BIT(HANTRO_H264_DPB_SIZE * 2 - 1 - i);
+
+ if (dpb[i / 2].flags & V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM)
+ dpb_longterm |= BIT(HANTRO_H264_DPB_SIZE * 2 - 1 - i);
+ }
+
+ ctx->h264_dec.dpb_valid = dpb_valid;
+ ctx->h264_dec.dpb_longterm = dpb_longterm;
+ } else {
+ for (i = 0; i < HANTRO_H264_DPB_SIZE; ++i) {
+ if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE)
+ dpb_valid |= BIT(HANTRO_H264_DPB_SIZE - 1 - i);
+
+ if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM)
+ dpb_longterm |= BIT(HANTRO_H264_DPB_SIZE - 1 - i);
+ }
+
+ ctx->h264_dec.dpb_valid = dpb_valid << 16;
+ ctx->h264_dec.dpb_longterm = dpb_longterm << 16;
+ }
+
for (i = 0; i < HANTRO_H264_DPB_SIZE; ++i) {
- tbl->poc[i * 2] = dpb[i].top_field_order_cnt;
- tbl->poc[i * 2 + 1] = dpb[i].bottom_field_order_cnt;
+ if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE) {
+ tbl->poc[i * 2] = dpb[i].top_field_order_cnt;
+ tbl->poc[i * 2 + 1] = dpb[i].bottom_field_order_cnt;
+ } else {
+ tbl->poc[i * 2] = 0;
+ tbl->poc[i * 2 + 1] = 0;
+ }
}

- tbl->poc[32] = dec_param->top_field_order_cnt;
- tbl->poc[33] = dec_param->bottom_field_order_cnt;
+ if ((slices[0].flags & V4L2_H264_SLICE_FLAG_FIELD_PIC) || !(slices[0].flags & V4L2_H264_SPS_FLAG_MB_ADAPTIVE_FRAME_FIELD)) {
+ if ((slices[0].flags & V4L2_H264_SLICE_FLAG_FIELD_PIC))
+ tbl->poc[32] = (slices[0].flags & V4L2_H264_SLICE_FLAG_BOTTOM_FIELD) ?
+ dec_param->bottom_field_order_cnt :
+ dec_param->top_field_order_cnt;
+ else
+ tbl->poc[32] = min(dec_param->top_field_order_cnt, dec_param->bottom_field_order_cnt);
+ tbl->poc[33] = 0;
+ } else {
+ tbl->poc[32] = dec_param->top_field_order_cnt;
+ tbl->poc[33] = dec_param->bottom_field_order_cnt;
+ }

reorder_scaling_list(ctx);
}
@@ -251,51 +299,36 @@ struct hantro_h264_reflist_builder {
u8 num_valid;
};

-static s32 get_poc(enum v4l2_field field, s32 top_field_order_cnt,
- s32 bottom_field_order_cnt)
-{
- switch (field) {
- case V4L2_FIELD_TOP:
- return top_field_order_cnt;
- case V4L2_FIELD_BOTTOM:
- return bottom_field_order_cnt;
- default:
- break;
- }
-
- return min(top_field_order_cnt, bottom_field_order_cnt);
-}
-
static void
init_reflist_builder(struct hantro_ctx *ctx,
struct hantro_h264_reflist_builder *b)
{
const struct v4l2_ctrl_h264_decode_params *dec_param;
- struct vb2_v4l2_buffer *buf = hantro_get_dst_buf(ctx);
+ const struct v4l2_ctrl_h264_slice_params *slices;
const struct v4l2_h264_dpb_entry *dpb = ctx->h264_dec.dpb;
- struct vb2_queue *cap_q = &ctx->fh.m2m_ctx->cap_q_ctx.q;
unsigned int i;

dec_param = ctx->h264_dec.ctrls.decode;
+ slices = ctx->h264_dec.ctrls.slices;

memset(b, 0, sizeof(*b));
b->dpb = dpb;
- b->curpoc = get_poc(buf->field, dec_param->top_field_order_cnt,
- dec_param->bottom_field_order_cnt);
+ b->curpoc = (slices[0].flags & V4L2_H264_SLICE_FLAG_BOTTOM_FIELD) ?
+ dec_param->bottom_field_order_cnt :
+ dec_param->top_field_order_cnt;

for (i = 0; i < ARRAY_SIZE(ctx->h264_dec.dpb); i++) {
- int buf_idx;
-
- if (!(dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE))
+ u32 ref_flag = dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_REF_FRAME;
+ if (!ref_flag)
continue;

- buf_idx = vb2_find_timestamp(cap_q, dpb[i].reference_ts, 0);
- if (buf_idx < 0)
- continue;
+ if (ref_flag == V4L2_H264_DPB_ENTRY_FLAG_REF_FRAME)
+ b->pocs[i] = min(dpb[i].bottom_field_order_cnt, dpb[i].top_field_order_cnt);
+ else if (ref_flag == V4L2_H264_DPB_ENTRY_FLAG_REF_BOTTOM)
+ b->pocs[i] = dpb[i].bottom_field_order_cnt;
+ else if (ref_flag == V4L2_H264_DPB_ENTRY_FLAG_REF_TOP)
+ b->pocs[i] = dpb[i].top_field_order_cnt;

- buf = to_vb2_v4l2_buffer(vb2_get_buffer(cap_q, buf_idx));
- b->pocs[i] = get_poc(buf->field, dpb[i].top_field_order_cnt,
- dpb[i].bottom_field_order_cnt);
b->unordered_reflist[b->num_valid] = i;
b->num_valid++;
}
@@ -448,8 +481,7 @@ build_b_ref_lists(const struct hantro_h264_reflist_builder *builder,
static bool dpb_entry_match(const struct v4l2_h264_dpb_entry *a,
const struct v4l2_h264_dpb_entry *b)
{
- return a->top_field_order_cnt == b->top_field_order_cnt &&
- a->bottom_field_order_cnt == b->bottom_field_order_cnt;
+ return a->reference_ts == b->reference_ts;
}

static void update_dpb(struct hantro_ctx *ctx)
@@ -463,13 +495,13 @@ static void update_dpb(struct hantro_ctx *ctx)

/* Disable all entries by default. */
for (i = 0; i < ARRAY_SIZE(ctx->h264_dec.dpb); i++)
- ctx->h264_dec.dpb[i].flags &= ~V4L2_H264_DPB_ENTRY_FLAG_ACTIVE;
+ ctx->h264_dec.dpb[i].flags = 0;

/* Try to match new DPB entries with existing ones by their POCs. */
for (i = 0; i < ARRAY_SIZE(dec_param->dpb); i++) {
const struct v4l2_h264_dpb_entry *ndpb = &dec_param->dpb[i];

- if (!(ndpb->flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE))
+ if (!(ndpb->flags & V4L2_H264_DPB_ENTRY_FLAG_VALID))
continue;

/*
@@ -480,8 +512,7 @@ static void update_dpb(struct hantro_ctx *ctx)
struct v4l2_h264_dpb_entry *cdpb;

cdpb = &ctx->h264_dec.dpb[j];
- if (cdpb->flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE ||
- !dpb_entry_match(cdpb, ndpb))
+ if (!dpb_entry_match(cdpb, ndpb))
continue;

*cdpb = *ndpb;
@@ -541,6 +572,25 @@ struct vb2_buffer *hantro_h264_get_ref_buf(struct hantro_ctx *ctx,
return buf;
}

+dma_addr_t hantro_h264_get_ref_dma_addr(struct hantro_ctx *ctx,
+ unsigned int dpb_idx)
+{
+ struct v4l2_h264_dpb_entry *dpb = ctx->h264_dec.dpb;
+ const struct v4l2_ctrl_h264_decode_params *dec_param = ctx->h264_dec.ctrls.decode;
+ const struct v4l2_ctrl_h264_slice_params *slices = ctx->h264_dec.ctrls.slices;
+
+ struct vb2_buffer *buf = hantro_h264_get_ref_buf(ctx, dpb_idx);
+ s32 cur_poc = slices[0].flags & V4L2_H264_SLICE_FLAG_BOTTOM_FIELD ?
+ dec_param->bottom_field_order_cnt :
+ dec_param->top_field_order_cnt;
+ u32 flags = dpb[dpb_idx].flags & V4L2_H264_DPB_ENTRY_FLAG_FIELD_PICTURE ? 0x2 : 0;
+ flags |= abs(dpb[dpb_idx].top_field_order_cnt - cur_poc) <
+ abs(dpb[dpb_idx].bottom_field_order_cnt - cur_poc) ?
+ 0x1 : 0;
+
+ return vb2_dma_contig_plane_dma_addr(buf, 0) | flags;
+}
+
int hantro_h264_dec_prepare_run(struct hantro_ctx *ctx)
{
struct hantro_h264_dec_hw_ctx *h264_ctx = &ctx->h264_dec;
diff --git a/drivers/staging/media/hantro/hantro_hw.h b/drivers/staging/media/hantro/hantro_hw.h
index 8adad8ac9b1d..d58f2a36ca40 100644
--- a/drivers/staging/media/hantro/hantro_hw.h
+++ b/drivers/staging/media/hantro/hantro_hw.h
@@ -86,6 +86,8 @@ struct hantro_h264_dec_hw_ctx {
struct v4l2_h264_dpb_entry dpb[HANTRO_H264_DPB_SIZE];
struct hantro_h264_dec_reflists reflists;
struct hantro_h264_dec_ctrls ctrls;
+ u32 dpb_longterm;
+ u32 dpb_valid;
};

/**
@@ -157,6 +159,8 @@ void hantro_jpeg_enc_exit(struct hantro_ctx *ctx);

struct vb2_buffer *hantro_h264_get_ref_buf(struct hantro_ctx *ctx,
unsigned int dpb_idx);
+dma_addr_t hantro_h264_get_ref_dma_addr(struct hantro_ctx *ctx,
+ unsigned int dpb_idx);
int hantro_h264_dec_prepare_run(struct hantro_ctx *ctx);
void hantro_g1_h264_dec_run(struct hantro_ctx *ctx);
int hantro_h264_dec_init(struct hantro_ctx *ctx);
--
2.17.1
\
 
 \ /
  Last update: 2019-09-01 14:46    [W:0.208 / U:3.500 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site