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21 #include "config_components.h"
54 const char *kernel_name;
62 ctx->command_queue = clCreateCommandQueue(
ctx->ocf.hwctx->context,
63 ctx->ocf.hwctx->device_id,
66 "command queue %d.\n", cle);
68 if (!strcmp(avctx->
filter->
name,
"erosion_opencl")){
69 kernel_name =
"erosion_global";
70 }
else if (!strcmp(avctx->
filter->
name,
"dilation_opencl")){
71 kernel_name =
"dilation_global";
73 ctx->kernel = clCreateKernel(
ctx->ocf.program, kernel_name, &cle);
81 if (
ctx->command_queue)
82 clReleaseCommandQueue(
ctx->command_queue);
84 clReleaseKernel(
ctx->kernel);
97 ctx->threshold[
i] /= 255.0;
101 for (
i = 0;
i < 8;
i++) {
102 if (
ctx->coordinates & (1 <<
i)) {
106 buffer = clCreateBuffer(
ctx->ocf.hwctx->context,
108 CL_MEM_COPY_HOST_PTR |
109 CL_MEM_HOST_NO_ACCESS,
110 9 *
sizeof(cl_int),
matrix, &cle);
129 size_t global_work[2];
132 size_t origin[3] = {0, 0, 0};
133 size_t region[3] = {0, 0, 1};
139 if (!
input->hw_frames_ctx)
142 if (!
ctx->initialised) {
166 if (
ctx->threshold[p] == 0) {
171 cle = clEnqueueCopyImage(
ctx->command_queue,
src,
dst,
172 origin, origin, region, 0,
NULL,
NULL);
187 p, global_work[0], global_work[1]);
189 cle = clEnqueueNDRangeKernel(
ctx->command_queue,
ctx->kernel, 2,
NULL,
193 "kernel: %d.\n", cle);
197 cle = clFinish(
ctx->command_queue);
213 clFinish(
ctx->command_queue);
224 clReleaseMemObject(
ctx->coord);
227 cle = clReleaseKernel(
ctx->kernel);
228 if (cle != CL_SUCCESS)
230 "kernel: %d.\n", cle);
233 if (
ctx->command_queue) {
234 cle = clReleaseCommandQueue(
ctx->command_queue);
235 if (cle != CL_SUCCESS)
237 "command queue: %d.\n", cle);
260 #define OFFSET(x) offsetof(NeighborOpenCLContext, x)
261 #define FLAGS (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)
263 #if CONFIG_EROSION_OPENCL_FILTER
265 static const AVOption erosion_opencl_options[] = {
277 .
name =
"erosion_opencl",
280 .priv_class = &erosion_opencl_class,
291 #if CONFIG_DILATION_OPENCL_FILTER
293 static const AVOption dilation_opencl_options[] = {
305 .
name =
"dilation_opencl",
308 .priv_class = &dilation_opencl_class,
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
static const AVFilterPad neighbor_opencl_inputs[]
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
#define CL_SET_KERNEL_ARG(kernel, arg_num, type, arg)
set argument to specific Kernel.
cl_float threshold[AV_VIDEO_MAX_PLANES]
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
static av_cold void neighbor_opencl_uninit(AVFilterContext *avctx)
filter_frame For filters that do not use the this method is called when a frame is pushed to the filter s input It can be called at any time except in a reentrant way If the input frame is enough to produce output
The exact code depends on how similar the blocks are and how related they are to the and needs to apply these operations to the correct inlink or outlink if there are several Macros are available to factor that when no extra processing is inlink
#define AV_VIDEO_MAX_PLANES
Maximum number of planes in any pixel format.
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.
int ff_opencl_filter_load_program(AVFilterContext *avctx, const char **program_source_array, int nb_strings)
Load a new OpenCL program from strings in memory.
static int neighbor_opencl_init(AVFilterContext *avctx)
const char * name
Filter name.
const AVFilter ff_vf_dilation_opencl
A link between two filters.
int ff_opencl_filter_work_size_from_image(AVFilterContext *avctx, size_t *work_size, AVFrame *frame, int plane, int block_alignment)
Find the work size needed needed for a given plane of an image.
void * priv
private data for use by the filter
static int neighbor_opencl_make_filter_params(AVFilterContext *avctx)
int ff_opencl_filter_config_output(AVFilterLink *outlink)
Create a suitable hardware frames context for the output.
A filter pad used for either input or output.
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
#define FF_ARRAY_ELEMS(a)
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
#define FILTER_OUTPUTS(array)
static int neighbor_opencl_filter_frame(AVFilterLink *inlink, AVFrame *input)
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
@ AV_PIX_FMT_OPENCL
Hardware surfaces for OpenCL.
#define AVFILTER_DEFINE_CLASS(fname)
cl_command_queue command_queue
#define FF_FILTER_FLAG_HWFRAME_AWARE
The filter is aware of hardware frames, and any hardware frame context should not be automatically pr...
const AVFilter ff_vf_erosion_opencl
int(* init)(AVBSFContext *ctx)
static const AVFilterPad neighbor_opencl_outputs[]
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
uint8_t ptrdiff_t const uint8_t ptrdiff_t int intptr_t intptr_t int int16_t * dst
#define AVFILTER_FLAG_HWDEVICE
The filter can create hardware frames using AVFilterContext.hw_device_ctx.
and forward the test the status of outputs and forward it to the corresponding return FFERROR_NOT_READY If the filters stores internally one or a few frame for some input
int ff_opencl_filter_config_input(AVFilterLink *inlink)
Check that the input link contains a suitable hardware frames context and extract the device from it.
@ AV_OPT_TYPE_FLOAT
Underlying C type is float.
static void uninit(AVBSFContext *ctx)
#define i(width, name, range_min, range_max)
int w
agreed upon image width
const char * name
Pad name.
int ff_opencl_filter_init(AVFilterContext *avctx)
Initialise an OpenCL filter context.
int h
agreed upon image height
the frame and frame reference mechanism is intended to as much as expensive copies of that data while still allowing the filters to produce correct results The data is stored in buffers represented by AVFrame structures Several references can point to the same frame buffer
@ AV_OPT_TYPE_INT
Underlying C type is int.
void ff_opencl_filter_uninit(AVFilterContext *avctx)
Uninitialise an OpenCL filter context.
const char * ff_source_neighbor_cl
#define CL_FAIL_ON_ERROR(errcode,...)
A helper macro to handle OpenCL errors.
const AVFilter * filter
the AVFilter of which this is an instance
#define FILTER_SINGLE_PIXFMT(pix_fmt_)
const char * av_get_pix_fmt_name(enum AVPixelFormat pix_fmt)
Return the short name for a pixel format, NULL in case pix_fmt is unknown.
AVFilterLink ** outputs
array of pointers to output links