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19 #include "config_components.h"
62 ctx->command_queue = clCreateCommandQueue(
ctx->ocf.hwctx->context,
63 ctx->ocf.hwctx->device_id,
65 if (!
ctx->command_queue) {
67 "command queue: %d.\n", cle);
71 ctx->kernel = clCreateKernel(
ctx->ocf.program,
ctx->kernel_name, &cle);
73 if (cle == CL_INVALID_KERNEL_NAME) {
75 "program.\n",
ctx->kernel_name);
92 size_t global_work[2];
94 int err,
input, plane;
109 dst = (cl_mem)
output->data[plane];
113 cle = clSetKernelArg(
ctx->kernel, 0,
sizeof(cl_mem), &dst);
114 if (cle != CL_SUCCESS) {
116 "destination image argument: %d.\n", cle);
120 cle = clSetKernelArg(
ctx->kernel, 1,
sizeof(cl_uint), &
ctx->index);
121 if (cle != CL_SUCCESS) {
123 "index argument: %d.\n", cle);
134 cle = clSetKernelArg(
ctx->kernel, 2 +
input,
sizeof(cl_mem), &
src);
135 if (cle != CL_SUCCESS) {
137 "source image argument %d: %d.\n",
input, cle);
150 plane, global_work[0], global_work[1]);
152 cle = clEnqueueNDRangeKernel(
ctx->command_queue,
ctx->kernel, 2,
NULL,
157 cle = clFinish(
ctx->command_queue);
160 if (
ctx->nb_inputs > 0) {
176 clFinish(
ctx->command_queue);
194 for (
i = 0;
i <
ctx->nb_inputs;
i++) {
222 if (
ctx->nb_inputs > 0) {
234 for (
i = 0;
i <
ctx->nb_inputs;
i++) {
261 ctx->ocf.output_width =
ctx->width;
262 ctx->ocf.output_height =
ctx->height;
264 if (!strcmp(avctx->
filter->
name,
"openclsrc")) {
265 if (!
ctx->ocf.output_width || !
ctx->ocf.output_height) {
267 "dimensions to be specified.\n");
272 ctx->ocf.output_format =
ctx->source_format;
280 for (
i = 0;
i <
ctx->nb_inputs;
i++) {
305 if (
ctx->nb_inputs > 0) {
312 cle = clReleaseKernel(
ctx->kernel);
313 if (cle != CL_SUCCESS)
315 "kernel: %d.\n", cle);
318 if (
ctx->command_queue) {
319 cle = clReleaseCommandQueue(
ctx->command_queue);
320 if (cle != CL_SUCCESS)
322 "command queue: %d.\n", cle);
328 #define OFFSET(x) offsetof(ProgramOpenCLContext, x)
329 #define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM)
331 #if CONFIG_PROGRAM_OPENCL_FILTER
333 static const AVOption program_opencl_options[] = {
334 {
"source",
"OpenCL program source file",
OFFSET(source_file),
336 {
"kernel",
"Kernel name in program",
OFFSET(kernel_name),
339 {
"inputs",
"Number of inputs",
OFFSET(nb_inputs),
352 static const AVFilterPad program_opencl_outputs[] = {
361 .
name =
"program_opencl",
364 .priv_class = &program_opencl_class,
366 .
preinit = &program_opencl_framesync_preinit,
378 #if CONFIG_OPENCLSRC_FILTER
380 static const AVOption openclsrc_options[] = {
381 {
"source",
"OpenCL program source file",
OFFSET(source_file),
383 {
"kernel",
"Kernel name in program",
OFFSET(kernel_name),
391 {
"format",
"Video format",
OFFSET(source_format),
394 {
"rate",
"Video frame rate",
OFFSET(source_rate),
396 {
"r",
"Video frame rate",
OFFSET(source_rate),
417 .priv_class = &openclsrc_class,
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
AVRational time_base
Time base for the incoming frames.
int ff_framesync_configure(FFFrameSync *fs)
Configure a frame sync structure.
AVPixelFormat
Pixel format.
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_framesync_uninit(FFFrameSync *fs)
Free all memory currently allocated.
#define FF_FILTER_FLAG_HWFRAME_AWARE
The filter is aware of hardware frames, and any hardware frame context should not be automatically pr...
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
@ AV_OPT_TYPE_VIDEO_RATE
offset must point to AVRational
int ff_framesync_get_frame(FFFrameSync *fs, unsigned in, AVFrame **rframe, unsigned get)
Get the current frame in an input.
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
char * av_asprintf(const char *fmt,...)
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
This structure describes decoded (raw) audio or video data.
static int program_opencl_activate(AVFilterContext *avctx)
#define FRAMESYNC_DEFINE_CLASS(name, context, field)
static int program_opencl_load(AVFilterContext *avctx)
static av_cold int preinit(AVFilterContext *ctx)
const char * name
Filter name.
@ EXT_INFINITY
Extend the frame to infinity.
static av_cold void program_opencl_uninit(AVFilterContext *avctx)
#define AVERROR_UNKNOWN
Unknown error, typically from an external library.
A link between two filters.
static int program_opencl_request_frame(AVFilterLink *outlink)
const AVFilter ff_vf_program_opencl
@ EXT_STOP
Completely stop all streams with this one.
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
unsigned sync
Synchronization level: frames on input at the highest sync level will generate output frame events.
#define AVFILTER_FLAG_DYNAMIC_INPUTS
The number of the filter inputs is not determined just by AVFilter.inputs.
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)
static int program_opencl_config_output(AVFilterLink *outlink)
int(* init)(AVBSFContext *ctx)
#define av_assert0(cond)
assert() equivalent, that is always enabled.
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
static int program_opencl_run(AVFilterContext *avctx)
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
#define fs(width, name, subs,...)
Rational number (pair of numerator and denominator).
int ff_append_inpad_free_name(AVFilterContext *f, AVFilterPad *p)
filter_frame For filters that do not use the activate() callback
@ AV_OPT_TYPE_IMAGE_SIZE
offset must point to two consecutive integers
AVFilterLink ** inputs
array of pointers to input links
@ AV_PIX_FMT_OPENCL
Hardware surfaces for OpenCL.
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several inputs
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
const AVFilter ff_vsrc_openclsrc
AVFilterContext * src
source filter
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.
#define AVFILTER_DEFINE_CLASS(fname)
#define FILTER_SINGLE_PIXFMT(pix_fmt_)
#define i(width, name, range_min, range_max)
static int program_opencl_filter(FFFrameSync *fs)
int w
agreed upon image width
static av_always_inline AVRational av_inv_q(AVRational q)
Invert a rational.
const char * name
Pad name.
void * av_calloc(size_t nmemb, size_t size)
enum AVPixelFormat source_format
cl_command_queue command_queue
int ff_opencl_filter_init(AVFilterContext *avctx)
Initialise an OpenCL filter context.
int ff_framesync_init(FFFrameSync *fs, AVFilterContext *parent, unsigned nb_in)
Initialize a frame sync structure.
enum FFFrameSyncExtMode before
Extrapolation mode for timestamps before the first frame.
int h
agreed upon image height
int ff_opencl_filter_load_program_from_file(AVFilterContext *avctx, const char *filename)
Load a new OpenCL program from a file.
void ff_opencl_filter_uninit(AVFilterContext *avctx)
Uninitialise an OpenCL filter context.
AVRational time_base
Define the time base used by the PTS of the frames/samples which will pass through this link.
static av_cold int program_opencl_init(AVFilterContext *avctx)
#define FILTER_OUTPUTS(array)
#define flags(name, subs,...)
enum FFFrameSyncExtMode after
Extrapolation mode for timestamps after the last frame.
#define CL_FAIL_ON_ERROR(errcode,...)
A helper macro to handle OpenCL errors.
static av_cold int uninit(AVCodecContext *avctx)
int ff_framesync_activate(FFFrameSync *fs)
Examine the frames in the filter's input and try to produce output.
const AVFilter * filter
the AVFilter of which this is an instance
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