github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-07-27 17:47:41 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

media: verisilicon: Export only needed pixels formats

Browse Source 
Some pixel formats can only be produced if the decoder outputs
reference pictures directly. In some cases, such as AV1 film-grain,
the use of the post-processor is strictly required. In this case,
only enumerate the post-processor supported formats. The exception is
when V4L2_FMTDESC_FLAG_ENUM_ALL is set, in this case, we enumerate
everything regardless of the state.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Fixes: bcd4f091cf ("media: verisilicon: Use V4L2_FMTDESC_FLAG_ENUM_ALL flag")
Cc: stable@vger.kernel.org
Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
This commit is contained in:
Benjamin Gaignard 2025-06-24 14:29:38 +02:00 committed by Hans Verkuil
parent 37340f0744
commit e0f5d6ae76
1 changed files with 5 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/media/platform/verisilicon/hantro_v4l2.c
View File

@ -222,6 +222,7 @@ static int vidioc_enum_fmt(struct file *file, void *priv,
unsigned int num_fmts, i, j = 0;
bool skip_mode_none, enum_all_formats;
u32 index = f->index & ~V4L2_FMTDESC_FLAG_ENUM_ALL;
bool need_postproc = ctx->need_postproc;
/*
* If the V4L2_FMTDESC_FLAG_ENUM_ALL flag is set, we want to enumerate all
@ -230,6 +231,9 @@ static int vidioc_enum_fmt(struct file *file, void *priv,
enum_all_formats = !!(f->index & V4L2_FMTDESC_FLAG_ENUM_ALL);
f->index = index;
if (enum_all_formats)
need_postproc = HANTRO_AUTO_POSTPROC;
/*
* When dealing with an encoder:
* - on the capture side we want to filter out all MODE_NONE formats.
@ -242,7 +246,7 @@ static int vidioc_enum_fmt(struct file *file, void *priv,
*/
skip_mode_none = capture == ctx->is_encoder;
formats = hantro_get_formats(ctx, &num_fmts, HANTRO_AUTO_POSTPROC);
formats = hantro_get_formats(ctx, &num_fmts, need_postproc);
for (i = 0; i < num_fmts; i++) {
bool mode_none = formats[i].codec_mode == HANTRO_MODE_NONE;
fmt = &formats[i];