On 2021-11-25 02:38 pm, Wu Jianhua wrote:
This filter flips the input video both horizontally and vertically
in one compute pipeline, and it's no need to use two pipelines for
hflip_vulkan,vflip_vulkan anymore.
bflip is not an intuitive name.
Either hvflip, or since h+v flip == 180 deg rotation, maybe rotate180
or rot180
Regards,
Gyan
Signed-off-by: Wu Jianhua <jianhua...@intel.com>
---
configure | 1 +
libavfilter/allfilters.c | 1 +
libavfilter/vf_flip_vulkan.c | 39 +++++++++++++++++++++++++++++++++++-
3 files changed, 40 insertions(+), 1 deletion(-)
diff --git a/configure b/configure
index d068b11073..a7562b53c3 100755
--- a/configure
+++ b/configure
@@ -3569,6 +3569,7 @@ atempo_filter_select="rdft"
avgblur_opencl_filter_deps="opencl"
avgblur_vulkan_filter_deps="vulkan spirv_compiler"
azmq_filter_deps="libzmq"
+bflip_vulkan_filter_deps="vulkan spirv_compiler"
blackframe_filter_deps="gpl"
bm3d_filter_deps="avcodec"
bm3d_filter_select="dct"
diff --git a/libavfilter/allfilters.c b/libavfilter/allfilters.c
index 4bf17ef292..041292853a 100644
--- a/libavfilter/allfilters.c
+++ b/libavfilter/allfilters.c
@@ -175,6 +175,7 @@ extern const AVFilter ff_vf_avgblur_opencl;
extern const AVFilter ff_vf_avgblur_vulkan;
extern const AVFilter ff_vf_bbox;
extern const AVFilter ff_vf_bench;
+extern const AVFilter ff_vf_bflip_vulkan;
extern const AVFilter ff_vf_bilateral;
extern const AVFilter ff_vf_bitplanenoise;
extern const AVFilter ff_vf_blackdetect;
diff --git a/libavfilter/vf_flip_vulkan.c b/libavfilter/vf_flip_vulkan.c
index e9e04db91b..e20766e9ed 100644
--- a/libavfilter/vf_flip_vulkan.c
+++ b/libavfilter/vf_flip_vulkan.c
@@ -26,7 +26,8 @@
enum FlipType {
FLIP_VERTICAL,
- FLIP_HORIZONTAL
+ FLIP_HORIZONTAL,
+ FLIP_BOTH
};
typedef struct FlipVulkanContext {
@@ -104,6 +105,9 @@ static av_cold int init_filter(AVFilterContext *ctx,
AVFrame *in, enum FlipType
case FLIP_VERTICAL:
GLSLF(2, vec4 res = texture(input_image[%i], ivec2(pos.x,
size.y - pos.y)); ,i);
break;
+ case FLIP_BOTH:
+ GLSLF(2, vec4 res = texture(input_image[%i], ivec2(size.xy -
pos.xy));, i);
+ break;
default:
GLSLF(2, vec4 res = texture(input_image[%i], pos);
,i);
break;
@@ -267,6 +271,11 @@ static int vflip_vulkan_filter_frame(AVFilterLink *link,
AVFrame *in)
return flip_vulkan_filter_frame(link, in, FLIP_VERTICAL);
}
+static int bflip_vulkan_filter_frame(AVFilterLink *link, AVFrame *in)
+{
+ return flip_vulkan_filter_frame(link, in, FLIP_BOTH);
+}
+
static const AVOption hflip_vulkan_options[] = {
{ NULL },
};
@@ -330,3 +339,31 @@ const AVFilter ff_vf_vflip_vulkan = {
.priv_class = &vflip_vulkan_class,
.flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
};
+
+static const AVOption bflip_vulkan_options[] = {
+ { NULL },
+};
+
+AVFILTER_DEFINE_CLASS(bflip_vulkan);
+
+static const AVFilterPad bflip_vulkan_inputs[] = {
+ {
+ .name = "default",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .filter_frame = &bflip_vulkan_filter_frame,
+ .config_props = &ff_vk_filter_config_input,
+ }
+};
+
+const AVFilter ff_vf_bflip_vulkan = {
+ .name = "bflip_vulkan",
+ .description = NULL_IF_CONFIG_SMALL("Flip both horizontally and
vertically"),
+ .priv_size = sizeof(FlipVulkanContext),
+ .init = &ff_vk_filter_init,
+ .uninit = &flip_vulkan_uninit,
+ FILTER_INPUTS(bflip_vulkan_inputs),
+ FILTER_OUTPUTS(flip_vulkan_outputs),
+ FILTER_SINGLE_PIXFMT(AV_PIX_FMT_VULKAN),
+ .priv_class = &bflip_vulkan_class,
+ .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
+};
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