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51 ctx->command_queue = clCreateCommandQueue(
ctx->ocf.hwctx->context,
52 ctx->ocf.hwctx->device_id,
55 "command queue %d.\n", cle);
57 ctx->kernel = clCreateKernel(
ctx->ocf.program,
"transpose", &cle);
65 if (
ctx->command_queue)
66 clReleaseCommandQueue(
ctx->command_queue);
68 clReleaseKernel(
ctx->kernel);
92 "w:%d h:%d -> w:%d h:%d (passthrough mode)\n",
106 s->ocf.output_width =
inlink->h;
107 s->ocf.output_height =
inlink->w;
112 if (
inlink->sample_aspect_ratio.num)
114 inlink->sample_aspect_ratio);
119 "w:%d h:%d dir:%d -> w:%d h:%d rotation:%s vflip:%d\n",
121 s->dir == 1 ||
s->dir == 3 ?
"clockwise" :
"counterclockwise",
122 s->dir == 0 ||
s->dir == 3);
130 return s->passthrough ?
141 size_t global_work[2];
150 if (!
input->hw_frames_ctx)
153 if (
ctx->passthrough)
166 if (
input->sample_aspect_ratio.num == 0) {
167 output->sample_aspect_ratio =
input->sample_aspect_ratio;
169 output->sample_aspect_ratio.num =
input->sample_aspect_ratio.den;
170 output->sample_aspect_ratio.den =
input->sample_aspect_ratio.num;
173 if (!
ctx->initialised) {
181 dst = (cl_mem)
output->data[p];
192 cle = clEnqueueNDRangeKernel(
ctx->command_queue,
ctx->kernel, 2,
NULL,
197 cle = clFinish(
ctx->command_queue);
209 clFinish(
ctx->command_queue);
221 cle = clReleaseKernel(
ctx->kernel);
222 if (cle != CL_SUCCESS)
224 "kernel: %d.\n", cle);
227 if (
ctx->command_queue) {
228 cle = clReleaseCommandQueue(
ctx->command_queue);
229 if (cle != CL_SUCCESS)
231 "command queue: %d.\n", cle);
237 #define OFFSET(x) offsetof(TransposeOpenCLContext, x)
238 #define FLAGS (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)
246 {
"passthrough",
"do not apply transposition if the input matches the specified geometry",
276 .
name =
"transpose_opencl",
279 .priv_class = &transpose_opencl_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
#define CL_SET_KERNEL_ARG(kernel, arg_num, type, arg)
set argument to specific Kernel.
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
static const AVFilterPad transpose_opencl_outputs[]
AVRational av_div_q(AVRational b, AVRational c)
Divide one rational by another.
static int transpose_opencl_init(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
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.
const char * ff_source_transpose_cl
#define AV_LOG_VERBOSE
Detailed information.
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.
AVBufferRef * av_buffer_ref(const AVBufferRef *buf)
Create a new reference to an AVBuffer.
const char * name
Filter name.
A link between two filters.
Link properties exposed to filter code, but not external callers.
static int transpose_opencl_config_output(AVFilterLink *outlink)
AVFrame * ff_default_get_video_buffer(AVFilterLink *link, int w, int h)
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 AVFrame * get_video_buffer(AVFilterLink *inlink, int w, int h)
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)
AVRational sample_aspect_ratio
agreed upon sample aspect ratio
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
#define FILTER_OUTPUTS(array)
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Rational number (pair of numerator and denominator).
AVFilterLink ** inputs
array of pointers to input links
const AVFilter ff_vf_transpose_opencl
@ AV_PIX_FMT_OPENCL
Hardware surfaces for OpenCL.
static FilterLink * ff_filter_link(AVFilterLink *link)
#define FF_FILTER_FLAG_HWFRAME_AWARE
The filter is aware of hardware frames, and any hardware frame context should not be automatically pr...
@ TRANSPOSE_PT_TYPE_PORTRAIT
static const AVFilterPad transpose_opencl_inputs[]
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.
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
AVBufferRef * hw_frames_ctx
For hwaccel pixel formats, this should be a reference to the AVHWFramesContext describing the frames.
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.
AVFrame * ff_null_get_video_buffer(AVFilterLink *link, int w, int h)
static void uninit(AVBSFContext *ctx)
cl_command_queue command_queue
int w
agreed upon image width
static int transpose_opencl_filter_frame(AVFilterLink *inlink, AVFrame *input)
const char * name
Pad name.
int ff_opencl_filter_init(AVFilterContext *avctx)
Initialise an OpenCL filter context.
int passthrough
PassthroughType, landscape passthrough mode enabled.
int h
agreed upon image height
@ AV_OPT_TYPE_INT
Underlying C type is int.
void ff_opencl_filter_uninit(AVFilterContext *avctx)
Uninitialise an OpenCL filter context.
@ TRANSPOSE_PT_TYPE_LANDSCAPE
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
AVFILTER_DEFINE_CLASS(transpose_opencl)
#define CL_FAIL_ON_ERROR(errcode,...)
A helper macro to handle OpenCL errors.
static av_cold void transpose_opencl_uninit(AVFilterContext *avctx)
static const AVOption transpose_opencl_options[]
@ AV_OPT_TYPE_CONST
Special option type for declaring named constants.
#define FILTER_SINGLE_PIXFMT(pix_fmt_)
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
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