Re: [PATCH v7 4/5] media: verisilicon: Do not change context bit depth before validating the format
From: Ezequiel Garcia
Date: Thu Feb 02 2023 - 14:32:07 EST
Hi Benjamin,
On Tue, Jan 31 2023 at 02:03:26 PM +0100, Benjamin Gaignard
<benjamin.gaignard@xxxxxxxxxxxxx> wrote:
It is needed to check if the proposed pixels format is valid before
updating context bit depth and other internal states.
Stop using ctx->bit_depth to check format depth match and return
result to the caller.
Fixes: dc39473d0340 ("media: hantro: imx8m: Enable 10bit decoding")
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@xxxxxxxxxxxxx>
Reviewed-by: Nicolas Dufresne <nicolas.dufresne@xxxxxxxxxxxxx>
---
version 7:
- Change HANTRO_DEFAULT_BIT_DEPTH value to 8.
- Simplify hantro_check_depth_match logic.
- Keep ctx->bit_depth as integer value because it is use
to compute buffers size for hevc.
.../platform/verisilicon/hantro_postproc.c | 2 +-
.../media/platform/verisilicon/hantro_v4l2.c | 45
++++++++++---------
.../media/platform/verisilicon/hantro_v4l2.h | 3 +-
3 files changed, 26 insertions(+), 24 deletions(-)
diff --git a/drivers/media/platform/verisilicon/hantro_postproc.c
b/drivers/media/platform/verisilicon/hantro_postproc.c
index 09d8cf942689..6437423ccf3a 100644
--- a/drivers/media/platform/verisilicon/hantro_postproc.c
+++ b/drivers/media/platform/verisilicon/hantro_postproc.c
@@ -197,7 +197,7 @@ int hantro_postproc_alloc(struct hantro_ctx *ctx)
unsigned int i, buf_size;
/* this should always pick native format */
- fmt = hantro_get_default_fmt(ctx, false);
+ fmt = hantro_get_default_fmt(ctx, false, ctx->bit_depth);
if (!fmt)
return -EINVAL;
v4l2_fill_pixfmt_mp(&pix_mp, fmt->fourcc, ctx->src_fmt.width,
diff --git a/drivers/media/platform/verisilicon/hantro_v4l2.c
b/drivers/media/platform/verisilicon/hantro_v4l2.c
index e60151a8a401..6c5f4351b257 100644
--- a/drivers/media/platform/verisilicon/hantro_v4l2.c
+++ b/drivers/media/platform/verisilicon/hantro_v4l2.c
@@ -28,6 +28,8 @@
#include "hantro_hw.h"
#include "hantro_v4l2.h"
+#define HANTRO_DEFAULT_BIT_DEPTH 0
^^^
This is still not correct.
The ctx->bit_depth should always be a valid value,
even in the reset state (at open() time).
Also, I think your series takes care of HEVC, but the exact
same changes are needed for VP9, as far as I can see.
Thanks,
Ezequiel
static int hantro_set_fmt_out(struct hantro_ctx *ctx,
struct v4l2_pix_format_mplane *pix_mp);
static int hantro_set_fmt_cap(struct hantro_ctx *ctx,
@@ -76,17 +78,16 @@ int hantro_get_format_depth(u32 fourcc)
}
static bool
-hantro_check_depth_match(const struct hantro_ctx *ctx,
- const struct hantro_fmt *fmt)
+hantro_check_depth_match(const struct hantro_fmt *fmt, int bit_depth)
{
- int fmt_depth, ctx_depth = 8;
+ int fmt_depth, depth = 8;
if (!fmt->match_depth && !fmt->postprocessed)
return true;
/* 0 means default depth, which is 8 */
- if (ctx->bit_depth)
- ctx_depth = ctx->bit_depth;
+ if (bit_depth)
+ depth = bit_depth;
fmt_depth = hantro_get_format_depth(fmt->fourcc);
@@ -95,9 +96,9 @@ hantro_check_depth_match(const struct hantro_ctx
*ctx,
* It may be possible to relax that on some HW.
*/
if (!fmt->match_depth)
- return fmt_depth <= ctx_depth;
+ return fmt_depth <= depth;
- return fmt_depth == ctx_depth;
+ return fmt_depth == depth;
}
static const struct hantro_fmt *
@@ -119,7 +120,7 @@ hantro_find_format(const struct hantro_ctx *ctx,
u32 fourcc)
}
const struct hantro_fmt *
-hantro_get_default_fmt(const struct hantro_ctx *ctx, bool bitstream)
+hantro_get_default_fmt(const struct hantro_ctx *ctx, bool bitstream,
int bit_depth)
{
const struct hantro_fmt *formats;
unsigned int i, num_fmts;
@@ -128,7 +129,7 @@ hantro_get_default_fmt(const struct hantro_ctx
*ctx, bool bitstream)
for (i = 0; i < num_fmts; i++) {
if (bitstream == (formats[i].codec_mode !=
HANTRO_MODE_NONE) &&
- hantro_check_depth_match(ctx, &formats[i]))
+ hantro_check_depth_match(&formats[i], bit_depth))
return &formats[i];
}
return NULL;
@@ -203,7 +204,7 @@ static int vidioc_enum_fmt(struct file *file,
void *priv,
if (skip_mode_none == mode_none)
continue;
- if (!hantro_check_depth_match(ctx, fmt))
+ if (!hantro_check_depth_match(fmt, ctx->bit_depth))
continue;
if (j == f->index) {
f->pixelformat = fmt->fourcc;
@@ -223,7 +224,7 @@ static int vidioc_enum_fmt(struct file *file,
void *priv,
for (i = 0; i < num_fmts; i++) {
fmt = &formats[i];
- if (!hantro_check_depth_match(ctx, fmt))
+ if (!hantro_check_depth_match(fmt, ctx->bit_depth))
continue;
if (j == f->index) {
f->pixelformat = fmt->fourcc;
@@ -291,7 +292,7 @@ static int hantro_try_fmt(const struct hantro_ctx
*ctx,
fmt = hantro_find_format(ctx, pix_mp->pixelformat);
if (!fmt) {
- fmt = hantro_get_default_fmt(ctx, coded);
+ fmt = hantro_get_default_fmt(ctx, coded, HANTRO_DEFAULT_BIT_DEPTH);
pix_mp->pixelformat = fmt->fourcc;
}
@@ -379,7 +380,7 @@ hantro_reset_encoded_fmt(struct hantro_ctx *ctx)
const struct hantro_fmt *vpu_fmt;
struct v4l2_pix_format_mplane fmt;
- vpu_fmt = hantro_get_default_fmt(ctx, true);
+ vpu_fmt = hantro_get_default_fmt(ctx, true,
HANTRO_DEFAULT_BIT_DEPTH);
if (!vpu_fmt)
return;
@@ -392,15 +393,15 @@ hantro_reset_encoded_fmt(struct hantro_ctx *ctx)
hantro_set_fmt_out(ctx, &fmt);
}
-static void
-hantro_reset_raw_fmt(struct hantro_ctx *ctx)
+int
+hantro_reset_raw_fmt(struct hantro_ctx *ctx, int bit_depth)
{
const struct hantro_fmt *raw_vpu_fmt;
struct v4l2_pix_format_mplane raw_fmt, *encoded_fmt;
- raw_vpu_fmt = hantro_get_default_fmt(ctx, false);
+ raw_vpu_fmt = hantro_get_default_fmt(ctx, false, bit_depth);
if (!raw_vpu_fmt)
- return;
+ return -EINVAL;
if (ctx->is_encoder)
encoded_fmt = &ctx->dst_fmt;
@@ -411,15 +412,15 @@ hantro_reset_raw_fmt(struct hantro_ctx *ctx)
raw_fmt.width = encoded_fmt->width;
raw_fmt.height = encoded_fmt->height;
if (ctx->is_encoder)
- hantro_set_fmt_out(ctx, &raw_fmt);
+ return hantro_set_fmt_out(ctx, &raw_fmt);
else
- hantro_set_fmt_cap(ctx, &raw_fmt);
+ return hantro_set_fmt_cap(ctx, &raw_fmt);
}
void hantro_reset_fmts(struct hantro_ctx *ctx)
{
hantro_reset_encoded_fmt(ctx);
- hantro_reset_raw_fmt(ctx);
+ hantro_reset_raw_fmt(ctx, HANTRO_DEFAULT_BIT_DEPTH);
}
static void
@@ -519,7 +520,7 @@ static int hantro_set_fmt_out(struct hantro_ctx
*ctx,
* changes to the raw format.
*/
if (!ctx->is_encoder)
- hantro_reset_raw_fmt(ctx);
+ hantro_reset_raw_fmt(ctx,
hantro_get_format_depth(pix_mp->pixelformat));
/* Colorimetry information are always propagated. */
ctx->dst_fmt.colorspace = pix_mp->colorspace;
@@ -582,7 +583,7 @@ static int hantro_set_fmt_cap(struct hantro_ctx
*ctx,
* changes to the raw format.
*/
if (ctx->is_encoder)
- hantro_reset_raw_fmt(ctx);
+ hantro_reset_raw_fmt(ctx, HANTRO_DEFAULT_BIT_DEPTH);
/* Colorimetry information are always propagated. */
ctx->src_fmt.colorspace = pix_mp->colorspace;
diff --git a/drivers/media/platform/verisilicon/hantro_v4l2.h
b/drivers/media/platform/verisilicon/hantro_v4l2.h
index 64f6f57e9d7a..9ea2fef57dcd 100644
--- a/drivers/media/platform/verisilicon/hantro_v4l2.h
+++ b/drivers/media/platform/verisilicon/hantro_v4l2.h
@@ -21,9 +21,10 @@
extern const struct v4l2_ioctl_ops hantro_ioctl_ops;
extern const struct vb2_ops hantro_queue_ops;
+int hantro_reset_raw_fmt(struct hantro_ctx *ctx, int bit_depth);
void hantro_reset_fmts(struct hantro_ctx *ctx);
int hantro_get_format_depth(u32 fourcc);
const struct hantro_fmt *
-hantro_get_default_fmt(const struct hantro_ctx *ctx, bool bitstream);
+hantro_get_default_fmt(const struct hantro_ctx *ctx, bool bitstream,
int bit_depth);
#endif /* HANTRO_V4L2_H_ */
--
2.34.1