[7/9] media: rkvdec: h264: Use bytesperline and buffer height to calculate stride
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Message ID 20200701215616.30874-8-jonas@kwiboo.se
State New
Headers show
Series
  • media: rkvdec: Add H.264 High 10 and 4:2:2 profile support
Related show

Commit Message

Jonas Karlman July 1, 2020, 9:56 p.m. UTC
Use bytesperline and buffer height to calculate the strides configured.

This does not really change anything other than ensuring the bytesperline
that is signaled to userspace matches was is configured in HW.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
---
 drivers/staging/media/rkvdec/rkvdec-h264.c | 27 +++++++++++++---------
 1 file changed, 16 insertions(+), 11 deletions(-)

Comments

Ezequiel Garcia July 3, 2020, 3:21 a.m. UTC | #1
Hi Jonas,

On Wed, 2020-07-01 at 21:56 +0000, Jonas Karlman wrote:
> Use bytesperline and buffer height to calculate the strides configured.
> 
> This does not really change anything other than ensuring the bytesperline
> that is signaled to userspace matches was is configured in HW.
> 

Are you seeing any issue due to this?

> Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
> ---
>  drivers/staging/media/rkvdec/rkvdec-h264.c | 27 +++++++++++++---------
>  1 file changed, 16 insertions(+), 11 deletions(-)
> 
> diff --git a/drivers/staging/media/rkvdec/rkvdec-h264.c b/drivers/staging/media/rkvdec/rkvdec-h264.c
> index 9c8e49642cd9..1cb6af590138 100644
> --- a/drivers/staging/media/rkvdec/rkvdec-h264.c
> +++ b/drivers/staging/media/rkvdec/rkvdec-h264.c
> @@ -891,10 +891,11 @@ static void config_registers(struct rkvdec_ctx *ctx,
>  	dma_addr_t rlc_addr;
>  	dma_addr_t refer_addr;
>  	u32 rlc_len;
> -	u32 hor_virstride = 0;
> -	u32 ver_virstride = 0;
> -	u32 y_virstride = 0;
> -	u32 yuv_virstride = 0;
> +	u32 hor_virstride;
> +	u32 ver_virstride;
> +	u32 y_virstride;
> +	u32 uv_virstride;
> +	u32 yuv_virstride;
>  	u32 offset;
>  	dma_addr_t dst_addr;
>  	u32 reg, i;
> @@ -904,16 +905,20 @@ static void config_registers(struct rkvdec_ctx *ctx,
>  
>  	f = &ctx->decoded_fmt;
>  	dst_fmt = &f->fmt.pix_mp;
> -	hor_virstride = (sps->bit_depth_luma_minus8 + 8) * dst_fmt->width / 8;
> -	ver_virstride = round_up(dst_fmt->height, 16);
> +	hor_virstride = dst_fmt->plane_fmt[0].bytesperline;
> +	ver_virstride = dst_fmt->height;
>  	y_virstride = hor_virstride * ver_virstride;
>  

So far so good.

> -	if (sps->chroma_format_idc == 0)
> -		yuv_virstride = y_virstride;
> -	else if (sps->chroma_format_idc == 1)
> -		yuv_virstride += y_virstride + y_virstride / 2;
> +	if (sps->chroma_format_idc == 1)
> +		uv_virstride = y_virstride / 2;
>  	else if (sps->chroma_format_idc == 2)
> -		yuv_virstride += 2 * y_virstride;
> +		uv_virstride = y_virstride;
> +	else if (sps->chroma_format_idc == 3)
> +		uv_virstride = 2 * y_virstride;
> +	else
> +		uv_virstride = 0;
> +
> +	yuv_virstride = y_virstride + uv_virstride;
>  

Is the chunk above related to the patch, or mostly
cleaning/improving the code?

Thanks,
Ezequiel

>  	reg = RKVDEC_Y_HOR_VIRSTRIDE(hor_virstride / 16) |
>  	      RKVDEC_UV_HOR_VIRSTRIDE(hor_virstride / 16) |
Jonas Karlman July 3, 2020, 11:40 a.m. UTC | #2
On 2020-07-03 05:21, Ezequiel Garcia wrote:
> Hi Jonas,
> 
> On Wed, 2020-07-01 at 21:56 +0000, Jonas Karlman wrote:
>> Use bytesperline and buffer height to calculate the strides configured.
>>
>> This does not really change anything other than ensuring the bytesperline
>> that is signaled to userspace matches was is configured in HW.
>>
> 
> Are you seeing any issue due to this?

Not seeing any issue, I just feelt more confident when both the driver and
application use the same value to configure the stride and when used for
drm framebuffer pitch.

> 
>> Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
>> ---
>>  drivers/staging/media/rkvdec/rkvdec-h264.c | 27 +++++++++++++---------
>>  1 file changed, 16 insertions(+), 11 deletions(-)
>>
>> diff --git a/drivers/staging/media/rkvdec/rkvdec-h264.c b/drivers/staging/media/rkvdec/rkvdec-h264.c
>> index 9c8e49642cd9..1cb6af590138 100644
>> --- a/drivers/staging/media/rkvdec/rkvdec-h264.c
>> +++ b/drivers/staging/media/rkvdec/rkvdec-h264.c
>> @@ -891,10 +891,11 @@ static void config_registers(struct rkvdec_ctx *ctx,
>>  	dma_addr_t rlc_addr;
>>  	dma_addr_t refer_addr;
>>  	u32 rlc_len;
>> -	u32 hor_virstride = 0;
>> -	u32 ver_virstride = 0;
>> -	u32 y_virstride = 0;
>> -	u32 yuv_virstride = 0;
>> +	u32 hor_virstride;
>> +	u32 ver_virstride;
>> +	u32 y_virstride;
>> +	u32 uv_virstride;
>> +	u32 yuv_virstride;
>>  	u32 offset;
>>  	dma_addr_t dst_addr;
>>  	u32 reg, i;
>> @@ -904,16 +905,20 @@ static void config_registers(struct rkvdec_ctx *ctx,
>>  
>>  	f = &ctx->decoded_fmt;
>>  	dst_fmt = &f->fmt.pix_mp;
>> -	hor_virstride = (sps->bit_depth_luma_minus8 + 8) * dst_fmt->width / 8;
>> -	ver_virstride = round_up(dst_fmt->height, 16);
>> +	hor_virstride = dst_fmt->plane_fmt[0].bytesperline;
>> +	ver_virstride = dst_fmt->height;
>>  	y_virstride = hor_virstride * ver_virstride;
>>  
> 
> So far so good.
> 
>> -	if (sps->chroma_format_idc == 0)
>> -		yuv_virstride = y_virstride;
>> -	else if (sps->chroma_format_idc == 1)
>> -		yuv_virstride += y_virstride + y_virstride / 2;
>> +	if (sps->chroma_format_idc == 1)
>> +		uv_virstride = y_virstride / 2;
>>  	else if (sps->chroma_format_idc == 2)
>> -		yuv_virstride += 2 * y_virstride;
>> +		uv_virstride = y_virstride;
>> +	else if (sps->chroma_format_idc == 3)
>> +		uv_virstride = 2 * y_virstride;
>> +	else
>> +		uv_virstride = 0;
>> +
>> +	yuv_virstride = y_virstride + uv_virstride;
>>  
> 
> Is the chunk above related to the patch, or mostly
> cleaning/improving the code?

You are correct it is mostly cleaning/improving the code,
this should probably be moved to a separate patch or skipped altogether.

Initial 10-bit implementation was made for HEVC so I just backported the code
I ended up with for HEVC back to H.264. Will skip this cleaning/improving in
this series and possible include it as part of a future HEVC series.

Regards,
Jonas

> 
> Thanks,
> Ezequiel
> 
>>  	reg = RKVDEC_Y_HOR_VIRSTRIDE(hor_virstride / 16) |
>>  	      RKVDEC_UV_HOR_VIRSTRIDE(hor_virstride / 16) |
> 
>

Patch
diff mbox series

diff --git a/drivers/staging/media/rkvdec/rkvdec-h264.c b/drivers/staging/media/rkvdec/rkvdec-h264.c
index 9c8e49642cd9..1cb6af590138 100644
--- a/drivers/staging/media/rkvdec/rkvdec-h264.c
+++ b/drivers/staging/media/rkvdec/rkvdec-h264.c
@@ -891,10 +891,11 @@  static void config_registers(struct rkvdec_ctx *ctx,
 	dma_addr_t rlc_addr;
 	dma_addr_t refer_addr;
 	u32 rlc_len;
-	u32 hor_virstride = 0;
-	u32 ver_virstride = 0;
-	u32 y_virstride = 0;
-	u32 yuv_virstride = 0;
+	u32 hor_virstride;
+	u32 ver_virstride;
+	u32 y_virstride;
+	u32 uv_virstride;
+	u32 yuv_virstride;
 	u32 offset;
 	dma_addr_t dst_addr;
 	u32 reg, i;
@@ -904,16 +905,20 @@  static void config_registers(struct rkvdec_ctx *ctx,
 
 	f = &ctx->decoded_fmt;
 	dst_fmt = &f->fmt.pix_mp;
-	hor_virstride = (sps->bit_depth_luma_minus8 + 8) * dst_fmt->width / 8;
-	ver_virstride = round_up(dst_fmt->height, 16);
+	hor_virstride = dst_fmt->plane_fmt[0].bytesperline;
+	ver_virstride = dst_fmt->height;
 	y_virstride = hor_virstride * ver_virstride;
 
-	if (sps->chroma_format_idc == 0)
-		yuv_virstride = y_virstride;
-	else if (sps->chroma_format_idc == 1)
-		yuv_virstride += y_virstride + y_virstride / 2;
+	if (sps->chroma_format_idc == 1)
+		uv_virstride = y_virstride / 2;
 	else if (sps->chroma_format_idc == 2)
-		yuv_virstride += 2 * y_virstride;
+		uv_virstride = y_virstride;
+	else if (sps->chroma_format_idc == 3)
+		uv_virstride = 2 * y_virstride;
+	else
+		uv_virstride = 0;
+
+	yuv_virstride = y_virstride + uv_virstride;
 
 	reg = RKVDEC_Y_HOR_VIRSTRIDE(hor_virstride / 16) |
 	      RKVDEC_UV_HOR_VIRSTRIDE(hor_virstride / 16) |