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media: uapi: h264: Drop SLICE_PARAMS 'size' field

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The SLICE_PARAMS control is intended for slice-based
devices. In this mode, the OUTPUT buffer contains
a single slice, and so the buffer's plane payload size
can be used to query the slice size.

To reduce the API surface drop the size from the
SLICE_PARAMS control.

A follow-up change will remove other members in SLICE_PARAMS
so we don't need to add padding fields here.

Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Tested-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Ezequiel Garcia 2020-08-25 05:52:34 +02:00 committed by Mauro Carvalho Chehab
parent f9879eb378
commit f6f0d58edf
3 changed files with 3 additions and 10 deletions
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3
Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
View File

@ -1760,9 +1760,6 @@ enum v4l2_mpeg_video_h264_hierarchical_coding_type -
:stub-columns: 0
:widths: 1 1 2
* - __u32
- ``size``
-
* - __u32
- ``start_byte_offset``
Offset (in bytes) from the beginning of the OUTPUT buffer to the start

7
drivers/staging/media/sunxi/cedrus/cedrus_h264.c
View File

@ -324,17 +324,16 @@ static void cedrus_set_params(struct cedrus_ctx *ctx,
struct vb2_buffer *src_buf = &run->src->vb2_buf;
struct cedrus_dev *dev = ctx->dev;
dma_addr_t src_buf_addr;
u32 len = slice->size * 8;
size_t slice_bytes = vb2_get_plane_payload(src_buf, 0);
unsigned int pic_width_in_mbs;
bool mbaff_pic;
u32 reg;
cedrus_write(dev, VE_H264_VLD_LEN, len);
cedrus_write(dev, VE_H264_VLD_LEN, slice_bytes * 8);
cedrus_write(dev, VE_H264_VLD_OFFSET, 0);
src_buf_addr = vb2_dma_contig_plane_dma_addr(src_buf, 0);
cedrus_write(dev, VE_H264_VLD_END,
src_buf_addr + vb2_get_plane_payload(src_buf, 0));
cedrus_write(dev, VE_H264_VLD_END, src_buf_addr + slice_bytes);
cedrus_write(dev, VE_H264_VLD_ADDR,
VE_H264_VLD_ADDR_VAL(src_buf_addr) |
VE_H264_VLD_ADDR_FIRST | VE_H264_VLD_ADDR_VALID |

3
include/media/h264-ctrls.h
View File

@ -163,9 +163,6 @@ struct v4l2_h264_reference {
};
struct v4l2_ctrl_h264_slice_params {
/* Size in bytes, including header */
__u32 size;
/* Offset in bytes to the start of slice in the OUTPUT buffer. */
__u32 start_byte_offset;