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45 C(0,
void distort_rgb(ivec2
size, ivec2
pos) )
47 C(1,
const vec2 p = ((vec2(
pos)/vec2(
size)) - 0.5
f)*2.0
f; )
48 C(1,
const vec2 o = p * (dist - 1.0
f); )
51 C(1, res.r = texture(input_img[0], ((p - o)/2.0
f) + 0.5
f).
r; )
52 C(1, res.g = texture(input_img[0], ((p )/2.0
f) + 0.5
f).
g; )
53 C(1, res.b = texture(input_img[0], ((p + o)/2.0
f) + 0.5
f).
b; )
54 C(1, res.a = texture(input_img[0], ((p )/2.0
f) + 0.5
f).
a; )
55 C(1, imageStore(output_img[0],
pos, res); )
58 C(0,
void distort_chroma(
int idx, ivec2
size, ivec2
pos) )
60 C(1, vec2 p = ((vec2(
pos)/vec2(
size)) - 0.5
f)*2.0
f; )
61 C(1,
float d = sqrt(p.x*p.x + p.y*p.y); )
62 C(1, p *= d / (d*dist); )
63 C(1, vec4 res = texture(input_img[idx], (p/2.0
f) + 0.5
f); )
64 C(1, imageStore(output_img[idx],
pos, res); )
73 void *spv_opaque =
NULL;
82 s->opts.dist[0] = (
s->opts.dist[0] / 100.0f) + 1.0
f;
83 s->opts.dist[1] = (
s->opts.dist[1] / 100.0f) + 1.0
f;
85 spv = ff_vk_spirv_init();
95 VK_SHADER_STAGE_COMPUTE_BIT,
100 GLSLC(0,
layout(push_constant, std430) uniform pushConstants { );
101 GLSLC(1, vec2 dist; );
106 VK_SHADER_STAGE_COMPUTE_BIT);
111 .type = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
114 .stages = VK_SHADER_STAGE_COMPUTE_BIT,
118 .name =
"output_img",
119 .type = VK_DESCRIPTOR_TYPE_STORAGE_IMAGE,
121 .mem_quali =
"writeonly",
124 .stages = VK_SHADER_STAGE_COMPUTE_BIT,
133 GLSLC(1, ivec2
pos = ivec2(gl_GlobalInvocationID.xy); );
135 GLSLC(1, distort_rgb(imageSize(output_img[0]),
pos); );
137 GLSLC(1, ivec2
size = imageSize(output_img[0]); );
139 GLSLC(1, vec4 res = texture(input_img[0], npos); );
140 GLSLC(1, imageStore(output_img[0],
pos, res); );
185 s->sampler, &
s->opts,
sizeof(
s->opts)));
219 #define OFFSET(x) offsetof(ChromaticAberrationVulkanContext, x)
220 #define FLAGS (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)
247 .
name =
"chromaber_vulkan",
255 .priv_class = &chromaber_vulkan_class,
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later. That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another. Frame references ownership and permissions
void ff_vk_shader_free(FFVulkanContext *s, FFVulkanShader *shd)
Free a shader.
int ff_vk_shader_init(FFVulkanContext *s, FFVulkanShader *shd, const char *name, VkPipelineStageFlags stage, const char *extensions[], int nb_extensions, int lg_x, int lg_y, int lg_z, uint32_t required_subgroup_size)
Initialize a shader object, with a specific set of extensions, type+bind, local group size,...
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
int ff_vk_filter_process_simple(FFVulkanContext *vkctx, FFVkExecPool *e, FFVulkanShader *shd, AVFrame *out_f, AVFrame *in_f, VkSampler sampler, void *push_src, size_t push_size)
Submit a compute shader with a zero/one input and single out for execution.
int ff_vk_qf_init(FFVulkanContext *s, FFVkQueueFamilyCtx *qf, VkQueueFlagBits dev_family)
Chooses a QF and loads it into a context.
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
#define FILTER_INPUTS(array)
This structure describes decoded (raw) audio or video data.
static void chromaber_vulkan_uninit(AVFilterContext *avctx)
int ff_vk_filter_init(AVFilterContext *avctx)
General lavfi IO functions.
void ff_vk_uninit(FFVulkanContext *s)
Frees main context.
void(* uninit)(struct FFVkSPIRVCompiler **ctx)
const char * name
Filter name.
A link between two filters.
@ AV_PIX_FMT_VULKAN
Vulkan hardware images.
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
struct ChromaticAberrationVulkanContext::@333 opts
const VkAllocationCallbacks * alloc
Custom memory allocator, else NULL.
void * priv
private data for use by the filter
int ff_vk_shader_register_exec(FFVulkanContext *s, FFVkExecPool *pool, FFVulkanShader *shd)
Register a shader with an exec pool.
int ff_vk_shader_add_descriptor_set(FFVulkanContext *s, FFVulkanShader *shd, FFVulkanDescriptorSetBinding *desc, int nb, int singular, int print_to_shader_only)
Add descriptor to a shader.
A filter pad used for either input or output.
s EdgeDetect Foobar g libavfilter vf_edgedetect c libavfilter vf_foobar c edit libavfilter and add an entry for foobar following the pattern of the other filters edit libavfilter allfilters and add an entry for foobar following the pattern of the other filters configure make j< whatever > ffmpeg ffmpeg i you should get a foobar png with Lena edge detected That s your new playground is ready Some little details about what s going which in turn will define variables for the build system and the C
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
const AVFilter ff_vf_chromaber_vulkan
static const AVOption chromaber_vulkan_options[]
void ff_vk_exec_pool_free(FFVulkanContext *s, FFVkExecPool *pool)
#define FILTER_OUTPUTS(array)
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a link
const char * ff_vk_shader_rep_fmt(enum AVPixelFormat pix_fmt, enum FFVkShaderRepFormat rep_fmt)
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
AVFILTER_DEFINE_CLASS(chromaber_vulkan)
int ff_vk_filter_config_output(AVFilterLink *outlink)
int ff_vk_exec_pool_init(FFVulkanContext *s, FFVkQueueFamilyCtx *qf, FFVkExecPool *pool, int nb_contexts, int nb_queries, VkQueryType query_type, int query_64bit, const void *query_create_pnext)
Allocates/frees an execution pool.
static const AVFilterPad chromaber_vulkan_outputs[]
#define FF_FILTER_FLAG_HWFRAME_AWARE
The filter is aware of hardware frames, and any hardware frame context should not be automatically pr...
static av_cold int init_filter(AVFilterContext *ctx, AVFrame *in)
int(* init)(AVBSFContext *ctx)
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
#define AVFILTER_FLAG_HWDEVICE
The filter can create hardware frames using AVFilterContext.hw_device_ctx.
static int chromaber_vulkan_filter_frame(AVFilterLink *link, AVFrame *in)
int(* compile_shader)(FFVulkanContext *s, struct FFVkSPIRVCompiler *ctx, FFVulkanShader *shd, uint8_t **data, size_t *size, const char *entrypoint, void **opaque)
The reader does not expect b to be semantically here and if the code is changed by maybe adding a a division or other the signedness will almost certainly be mistaken To avoid this confusion a new type was SUINT is the C unsigned type but it holds a signed int to use the same example SUINT a
#define AVERROR_EXTERNAL
Generic error in an external library.
@ AV_OPT_TYPE_FLOAT
Underlying C type is float.
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel layout
static void uninit(AVBSFContext *ctx)
#define i(width, name, range_min, range_max)
int w
agreed upon image width
int ff_vk_shader_link(FFVulkanContext *s, FFVulkanShader *shd, uint8_t *spirv, size_t spirv_len, const char *entrypoint)
Link a shader into an executable.
const char * name
Pad name.
void(* free_shader)(struct FFVkSPIRVCompiler *ctx, void **opaque)
int ff_vk_shader_add_push_const(FFVulkanShader *shd, int offset, int size, VkShaderStageFlagBits stage)
Add/update push constants for execution.
int h
agreed upon image height
int ff_vk_filter_config_input(AVFilterLink *inlink)
AVVulkanDeviceContext * hwctx
VkDevice act_dev
Active device.
int ff_vk_init_sampler(FFVulkanContext *s, VkSampler *sampler, int unnorm_coords, VkFilter filt)
Create a sampler.
static const char distort_chroma_kernel[]
static const AVFilterPad chromaber_vulkan_inputs[]
#define FILTER_SINGLE_PIXFMT(pix_fmt_)
static const struct @458 planes[]