751 lines
29 KiB
C
751 lines
29 KiB
C
/*
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* Copyright (c) 2007-2011 Intel Corporation. All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL INTEL AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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/**
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* \file va_vpp.h
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* \brief The video processing API
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*
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* This file contains the \ref api_vpp "Video processing API".
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*/
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#ifndef VA_VPP_H
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#define VA_VPP_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* \defgroup api_vpp Video processing API
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*
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* @{
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*
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* The video processing API uses the same paradigm as for decoding:
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* - Query for supported filters;
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* - Set up a video processing pipeline;
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* - Send video processing parameters through VA buffers.
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*
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* \section api_vpp_caps Query for supported filters
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*
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* Checking whether video processing is supported can be performed
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* with vaQueryConfigEntrypoints() and the profile argument set to
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* #VAProfileNone. If video processing is supported, then the list of
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* returned entry-points will include #VAEntrypointVideoProc.
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*
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* \code
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* VAEntrypoint *entrypoints;
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* int i, num_entrypoints, supportsVideoProcessing = 0;
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*
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* num_entrypoints = vaMaxNumEntrypoints();
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* entrypoints = malloc(num_entrypoints * sizeof(entrypoints[0]);
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* vaQueryConfigEntrypoints(va_dpy, VAProfileNone,
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* entrypoints, &num_entrypoints);
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*
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* for (i = 0; !supportsVideoProcessing && i < num_entrypoints; i++) {
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* if (entrypoints[i] == VAEntrypointVideoProc)
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* supportsVideoProcessing = 1;
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* }
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* \endcode
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*
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* Then, the vaQueryVideoProcFilters() function is used to query the
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* list of video processing filters.
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*
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* \code
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* VAProcFilterType filters[VAProcFilterCount];
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* unsigned int num_filters = VAProcFilterCount;
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*
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* // num_filters shall be initialized to the length of the array
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* vaQueryVideoProcFilters(va_dpy, vpp_ctx, &filters, &num_filters);
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* \endcode
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*
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* Finally, individual filter capabilities can be checked with
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* vaQueryVideoProcFilterCaps().
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*
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* \code
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* VAProcFilterCap denoise_caps;
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* unsigned int num_denoise_caps = 1;
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* vaQueryVideoProcFilterCaps(va_dpy, vpp_ctx,
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* VAProcFilterNoiseReduction,
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* &denoise_caps, &num_denoise_caps
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* );
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*
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* VAProcFilterCapDeinterlacing deinterlacing_caps[VAProcDeinterlacingCount];
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* unsigned int num_deinterlacing_caps = VAProcDeinterlacingCount;
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* vaQueryVideoProcFilterCaps(va_dpy, vpp_ctx,
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* VAProcFilterDeinterlacing,
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* &deinterlacing_caps, &num_deinterlacing_caps
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* );
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* \endcode
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*
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* \section api_vpp_setup Set up a video processing pipeline
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*
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* A video processing pipeline buffer is created for each source
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* surface we want to process. However, buffers holding filter
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* parameters can be created once and for all. Rationale is to avoid
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* multiple creation/destruction chains of filter buffers and also
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* because filter parameters generally won't change frame after
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* frame. e.g. this makes it possible to implement a checkerboard of
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* videos where the same filters are applied to each video source.
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*
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* The general control flow is demonstrated by the following pseudo-code:
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* \code
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* // Create filters
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* VABufferID denoise_filter, deint_filter;
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* VABufferID filter_bufs[VAProcFilterCount];
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* unsigned int num_filter_bufs;
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*
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* for (i = 0; i < num_filters; i++) {
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* switch (filters[i]) {
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* case VAProcFilterNoiseReduction: { // Noise reduction filter
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* VAProcFilterParameterBuffer denoise;
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* denoise.type = VAProcFilterNoiseReduction;
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* denoise.value = 0.5;
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* vaCreateBuffer(va_dpy, vpp_ctx,
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* VAProcFilterParameterBufferType, sizeof(denoise), 1,
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* &denoise, &denoise_filter
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* );
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* filter_bufs[num_filter_bufs++] = denoise_filter;
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* break;
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* }
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*
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* case VAProcFilterDeinterlacing: // Motion-adaptive deinterlacing
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* for (j = 0; j < num_deinterlacing_caps; j++) {
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* VAProcFilterCapDeinterlacing * const cap = &deinterlacing_caps[j];
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* if (cap->type != VAProcDeinterlacingMotionAdaptive)
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* continue;
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*
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* VAProcFilterParameterBufferDeinterlacing deint;
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* deint.type = VAProcFilterDeinterlacing;
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* deint.algorithm = VAProcDeinterlacingMotionAdaptive;
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* vaCreateBuffer(va_dpy, vpp_ctx,
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* VAProcFilterParameterBufferType, sizeof(deint), 1,
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* &deint, &deint_filter
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* );
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* filter_bufs[num_filter_bufs++] = deint_filter;
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* }
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* }
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* }
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* \endcode
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*
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* Once the video processing pipeline is set up, the caller shall check the
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* implied capabilities and requirements with vaQueryVideoProcPipelineCaps().
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* This function can be used to validate the number of reference frames are
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* needed by the specified deinterlacing algorithm, the supported color
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* primaries, etc.
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* \code
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* // Create filters
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* VAProcPipelineCaps pipeline_caps;
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* VASurfaceID *forward_references;
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* unsigned int num_forward_references;
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* VASurfaceID *backward_references;
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* unsigned int num_backward_references;
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* VAProcColorStandardType in_color_standards[VAProcColorStandardCount];
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* VAProcColorStandardType out_color_standards[VAProcColorStandardCount];
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*
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* pipeline_caps.input_color_standards = NULL;
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* pipeline_caps.num_input_color_standards = ARRAY_ELEMS(in_color_standards);
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* pipeline_caps.output_color_standards = NULL;
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* pipeline_caps.num_output_color_standards = ARRAY_ELEMS(out_color_standards);
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* vaQueryVideoProcPipelineCaps(va_dpy, vpp_ctx,
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* filter_bufs, num_filter_bufs,
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* &pipeline_caps
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* );
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*
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* num_forward_references = pipeline_caps.num_forward_references;
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* forward_references =
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* malloc(num__forward_references * sizeof(VASurfaceID));
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* num_backward_references = pipeline_caps.num_backward_references;
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* backward_references =
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* malloc(num_backward_references * sizeof(VASurfaceID));
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* \endcode
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*
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* \section api_vpp_submit Send video processing parameters through VA buffers
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*
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* Video processing pipeline parameters are submitted for each source
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* surface to process. Video filter parameters can also change, per-surface.
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* e.g. the list of reference frames used for deinterlacing.
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*
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* \code
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* foreach (iteration) {
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* vaBeginPicture(va_dpy, vpp_ctx, vpp_surface);
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* foreach (surface) {
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* VARectangle output_region;
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* VABufferID pipeline_buf;
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* VAProcPipelineParameterBuffer *pipeline_param;
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*
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* vaCreateBuffer(va_dpy, vpp_ctx,
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* VAProcPipelineParameterBuffer, sizeof(*pipeline_param), 1,
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* NULL, &pipeline_buf
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* );
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*
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* // Setup output region for this surface
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* // e.g. upper left corner for the first surface
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* output_region.x = BORDER;
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* output_region.y = BORDER;
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* output_region.width =
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* (vpp_surface_width - (Nx_surfaces + 1) * BORDER) / Nx_surfaces;
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* output_region.height =
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* (vpp_surface_height - (Ny_surfaces + 1) * BORDER) / Ny_surfaces;
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*
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* vaMapBuffer(va_dpy, pipeline_buf, &pipeline_param);
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* pipeline_param->surface = surface;
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* pipeline_param->surface_region = NULL;
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* pipeline_param->output_region = &output_region;
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* pipeline_param->output_background_color = 0;
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* if (first surface to render)
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* pipeline_param->output_background_color = 0xff000000; // black
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* pipeline_param->filter_flags = VA_FILTER_SCALING_HQ;
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* pipeline_param->filters = filter_bufs;
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* pipeline_param->num_filters = num_filter_bufs;
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* vaUnmapBuffer(va_dpy, pipeline_buf);
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*
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* // Update reference frames for deinterlacing, if necessary
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* pipeline_param->forward_references = forward_references;
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* pipeline_param->num_forward_references = num_forward_references_used;
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* pipeline_param->backward_references = backward_references;
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* pipeline_param->num_backward_references = num_bacward_references_used;
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*
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* // Apply filters
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* vaRenderPicture(va_dpy, vpp_ctx, &pipeline_buf, 1);
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* }
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* vaEndPicture(va_dpy, vpp_ctx);
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* }
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* \endcode
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*/
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/** \brief Video filter types. */
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typedef enum _VAProcFilterType {
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VAProcFilterNone = 0,
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/** \brief Noise reduction filter. */
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VAProcFilterNoiseReduction,
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/** \brief Deinterlacing filter. */
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VAProcFilterDeinterlacing,
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/** \brief Sharpening filter. */
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VAProcFilterSharpening,
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/** \brief Color balance parameters. */
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VAProcFilterColorBalance,
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/** \brief Skin Tone Enhancement. */
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VAProcFilterSkinToneEnhancement,
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VAProcFilterCount
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} VAProcFilterType;
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/** \brief Deinterlacing types. */
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typedef enum _VAProcDeinterlacingType {
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VAProcDeinterlacingNone = 0,
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/** \brief Bob deinterlacing algorithm. */
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VAProcDeinterlacingBob,
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/** \brief Weave deinterlacing algorithm. */
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VAProcDeinterlacingWeave,
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/** \brief Motion adaptive deinterlacing algorithm. */
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VAProcDeinterlacingMotionAdaptive,
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/** \brief Motion compensated deinterlacing algorithm. */
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VAProcDeinterlacingMotionCompensated,
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/** \brief Number of deinterlacing algorithms. */
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VAProcDeinterlacingCount
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} VAProcDeinterlacingType;
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/** \brief Color balance types. */
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typedef enum _VAProcColorBalanceType {
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VAProcColorBalanceNone = 0,
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/** \brief Hue. */
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VAProcColorBalanceHue,
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/** \brief Saturation. */
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VAProcColorBalanceSaturation,
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/** \brief Brightness. */
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VAProcColorBalanceBrightness,
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/** \brief Contrast. */
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VAProcColorBalanceContrast,
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/** \brief Automatically adjusted saturation. */
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VAProcColorBalanceAutoSaturation,
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/** \brief Automatically adjusted brightness. */
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VAProcColorBalanceAutoBrightness,
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/** \brief Automatically adjusted contrast. */
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VAProcColorBalanceAutoContrast,
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/** \brief Number of color balance attributes. */
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VAProcColorBalanceCount
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} VAProcColorBalanceType;
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/** \brief Color standard types. */
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typedef enum _VAProcColorStandardType {
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VAProcColorStandardNone = 0,
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/** \brief ITU-R BT.601. */
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VAProcColorStandardBT601,
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/** \brief ITU-R BT.709. */
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VAProcColorStandardBT709,
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/** \brief ITU-R BT.470-2 System M. */
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VAProcColorStandardBT470M,
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/** \brief ITU-R BT.470-2 System B, G. */
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VAProcColorStandardBT470BG,
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/** \brief SMPTE-170M. */
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VAProcColorStandardSMPTE170M,
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/** \brief SMPTE-240M. */
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VAProcColorStandardSMPTE240M,
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/** \brief Generic film. */
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VAProcColorStandardGenericFilm,
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/** \brief Number of color standards. */
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VAProcColorStandardCount
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} VAProcColorStandardType;
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/** @name Video pipeline flags */
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/**@{*/
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/** \brief Specifies whether to apply subpictures when processing a surface. */
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#define VA_PROC_PIPELINE_SUBPICTURES 0x00000001
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/**
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* \brief Specifies whether to apply power or performance
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* optimizations to a pipeline.
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*
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* When processing several surfaces, it may be necessary to prioritize
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* more certain pipelines than others. This flag is only a hint to the
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* video processor so that it can omit certain filters to save power
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* for example. Typically, this flag could be used with video surfaces
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* decoded from a secondary bitstream.
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*/
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#define VA_PROC_PIPELINE_FAST 0x00000002
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/**@}*/
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/** @name Video filter flags */
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/**@{*/
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/** \brief Specifies whether the filter shall be present in the pipeline. */
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#define VA_PROC_FILTER_MANDATORY 0x00000001
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/**@}*/
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/** @name Pipeline end flags */
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/**@{*/
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/** \brief Specifies the pipeline is the last. */
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#define VA_PIPELINE_FLAG_END 0x00000004
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/**@}*/
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/** \brief Video processing pipeline capabilities. */
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typedef struct _VAProcPipelineCaps {
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/** \brief Pipeline flags. See VAProcPipelineParameterBuffer::pipeline_flags. */
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unsigned int pipeline_flags;
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/** \brief Extra filter flags. See VAProcPipelineParameterBuffer::filter_flags. */
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unsigned int filter_flags;
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/** \brief Number of forward reference frames that are needed. */
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unsigned int num_forward_references;
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/** \brief Number of backward reference frames that are needed. */
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unsigned int num_backward_references;
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/** \brief List of color standards supported on input. */
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VAProcColorStandardType *input_color_standards;
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/** \brief Number of elements in \ref input_color_standards array. */
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unsigned int num_input_color_standards;
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/** \brief List of color standards supported on output. */
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VAProcColorStandardType *output_color_standards;
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/** \brief Number of elements in \ref output_color_standards array. */
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unsigned int num_output_color_standards;
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} VAProcPipelineCaps;
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/** \brief Specification of values supported by the filter. */
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typedef struct _VAProcFilterValueRange {
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/** \brief Minimum value supported, inclusive. */
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float min_value;
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/** \brief Maximum value supported, inclusive. */
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float max_value;
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/** \brief Default value. */
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float default_value;
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/** \brief Step value that alters the filter behaviour in a sensible way. */
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float step;
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} VAProcFilterValueRange;
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/**
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* \brief Video processing pipeline configuration.
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*
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* This buffer defines a video processing pipeline. As for any buffer
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* passed to \c vaRenderPicture(), this is a one-time usage model.
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* However, the actual filters to be applied are provided in the
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* \c filters field, so they can be re-used in other processing
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* pipelines.
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*
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* The target surface is specified by the \c render_target argument of
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* \c vaBeginPicture(). The general usage model is described as follows:
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* - \c vaBeginPicture(): specify the target surface that receives the
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* processed output;
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* - \c vaRenderPicture(): specify a surface to be processed and composed
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* into the \c render_target. Use as many \c vaRenderPicture() calls as
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* necessary surfaces to compose ;
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* - \c vaEndPicture(): tell the driver to start processing the surfaces
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* with the requested filters.
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*
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* If a filter (e.g. noise reduction) needs to be applied with different
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* values for multiple surfaces, the application needs to create as many
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* filter parameter buffers as necessary. i.e. the filter parameters shall
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* not change between two calls to \c vaRenderPicture().
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*
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* For composition usage models, the first surface to process will generally
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* use an opaque background color, i.e. \c output_background_color set with
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* the most significant byte set to \c 0xff. For instance, \c 0xff000000 for
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* a black background. Then, subsequent surfaces would use a transparent
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* background color.
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*/
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typedef struct _VAProcPipelineParameterBuffer {
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/**
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* \brief Source surface ID.
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*
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* ID of the source surface to process. If subpictures are associated
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* with the video surfaces then they shall be rendered to the target
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* surface, if the #VA_PROC_PIPELINE_SUBPICTURES pipeline flag is set.
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*/
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VASurfaceID surface;
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/**
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* \brief Region within the source surface to be processed.
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*
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* Pointer to a #VARectangle defining the region within the source
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* surface to be processed. If NULL, \c surface_region implies the
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* whole surface.
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*/
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const VARectangle *surface_region;
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/**
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* \brief Requested input color primaries.
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*
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* Color primaries are implicitly converted throughout the processing
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* pipeline. The video processor chooses the best moment to apply
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* this conversion. The set of supported color primaries primaries
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* for input shall be queried with vaQueryVideoProcPipelineCaps().
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*/
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VAProcColorStandardType surface_color_standard;
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/**
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* \brief Region within the output surface.
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*
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* Pointer to a #VARectangle defining the region within the output
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* surface that receives the processed pixels. If NULL, \c output_region
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* implies the whole surface.
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*
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* Note that any pixels residing outside the specified region will
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* be filled in with the \ref output_background_color.
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*/
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const VARectangle *output_region;
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/**
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* \brief Background color.
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*
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* Background color used to fill in pixels that reside outside of the
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* specified \ref output_region. The color is specified in ARGB format:
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* [31:24] alpha, [23:16] red, [15:8] green, [7:0] blue.
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*
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* Unless the alpha value is zero or the \ref output_region represents
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* the whole target surface size, implementations shall not render the
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* source surface to the target surface directly. Rather, in order to
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* maintain the exact semantics of \ref output_background_color, the
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* driver shall use a temporary surface and fill it in with the
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* appropriate background color. Next, the driver will blend this
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* temporary surface into the target surface.
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*/
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unsigned int output_background_color;
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/**
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* \brief Requested output color primaries.
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*/
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VAProcColorStandardType output_color_standard;
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/**
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* \brief Pipeline filters. See video pipeline flags.
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*
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* Flags to control the pipeline, like whether to apply subpictures
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* or not, notify the driver that it can opt for power optimizations,
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* should this be needed.
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*/
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unsigned int pipeline_flags;
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/**
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* \brief Extra filter flags. See vaPutSurface() flags.
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*
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* Filter flags are used as a fast path, wherever possible, to use
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* vaPutSurface() flags instead of explicit filter parameter buffers.
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*
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* Allowed filter flags API-wise. Use vaQueryVideoProcPipelineCaps()
|
|
* to check for implementation details:
|
|
* - Bob-deinterlacing: \c VA_FRAME_PICTURE, \c VA_TOP_FIELD,
|
|
* \c VA_BOTTOM_FIELD. Note that any deinterlacing filter
|
|
* (#VAProcFilterDeinterlacing) will override those flags.
|
|
* - Color space conversion: \c VA_SRC_BT601, \c VA_SRC_BT709,
|
|
* \c VA_SRC_SMPTE_240.
|
|
* - Scaling: \c VA_FILTER_SCALING_DEFAULT, \c VA_FILTER_SCALING_FAST,
|
|
* \c VA_FILTER_SCALING_HQ, \c VA_FILTER_SCALING_NL_ANAMORPHIC.
|
|
*/
|
|
unsigned int filter_flags;
|
|
/**
|
|
* \brief Array of filters to apply to the surface.
|
|
*
|
|
* The list of filters shall be ordered in the same way the driver expects
|
|
* them. i.e. as was returned from vaQueryVideoProcFilters().
|
|
* Otherwise, a #VA_STATUS_ERROR_INVALID_FILTER_CHAIN is returned
|
|
* from vaRenderPicture() with this buffer.
|
|
*
|
|
* #VA_STATUS_ERROR_UNSUPPORTED_FILTER is returned if the list
|
|
* contains an unsupported filter.
|
|
*
|
|
* Note: no filter buffer is destroyed after a call to vaRenderPicture(),
|
|
* only this pipeline buffer will be destroyed as per the core API
|
|
* specification. This allows for flexibility in re-using the filter for
|
|
* other surfaces to be processed.
|
|
*/
|
|
VABufferID *filters;
|
|
/** \brief Actual number of filters. */
|
|
unsigned int num_filters;
|
|
/** \brief Array of forward reference frames. */
|
|
VASurfaceID *forward_references;
|
|
/** \brief Number of forward reference frames that were supplied. */
|
|
unsigned int num_forward_references;
|
|
/** \brief Array of backward reference frames. */
|
|
VASurfaceID *backward_references;
|
|
/** \brief Number of backward reference frames that were supplied. */
|
|
unsigned int num_backward_references;
|
|
} VAProcPipelineParameterBuffer;
|
|
|
|
/**
|
|
* \brief Filter parameter buffer base.
|
|
*
|
|
* This is a helper structure used by driver implementations only.
|
|
* Users are not supposed to allocate filter parameter buffers of this
|
|
* type.
|
|
*/
|
|
typedef struct _VAProcFilterParameterBufferBase {
|
|
/** \brief Filter type. */
|
|
VAProcFilterType type;
|
|
} VAProcFilterParameterBufferBase;
|
|
|
|
/**
|
|
* \brief Default filter parametrization.
|
|
*
|
|
* Unless there is a filter-specific parameter buffer,
|
|
* #VAProcFilterParameterBuffer is the default type to use.
|
|
*/
|
|
typedef struct _VAProcFilterParameterBuffer {
|
|
/** \brief Filter type. */
|
|
VAProcFilterType type;
|
|
/** \brief Value. */
|
|
float value;
|
|
} VAProcFilterParameterBuffer;
|
|
|
|
/** @name De-interlacing flags */
|
|
/**@{*/
|
|
/**
|
|
* \brief Bottom field first in the input frame.
|
|
* if this is not set then assumes top field first.
|
|
*/
|
|
#define VA_DEINTERLACING_BOTTOM_FIELD_FIRST 0x0001
|
|
/**
|
|
* \brief Bottom field used in deinterlacing.
|
|
* if this is not set then assumes top field is used.
|
|
*/
|
|
#define VA_DEINTERLACING_BOTTOM_FIELD 0x0002
|
|
/**
|
|
* \brief A single field is stored in the input frame.
|
|
* if this is not set then assumes the frame contains two interleaved fields.
|
|
*/
|
|
#define VA_DEINTERLACING_ONE_FIELD 0x0004
|
|
/**@}*/
|
|
|
|
/** \brief Deinterlacing filter parametrization. */
|
|
typedef struct _VAProcFilterParameterBufferDeinterlacing {
|
|
/** \brief Filter type. Shall be set to #VAProcFilterDeinterlacing. */
|
|
VAProcFilterType type;
|
|
/** \brief Deinterlacing algorithm. */
|
|
VAProcDeinterlacingType algorithm;
|
|
/** \brief Deinterlacing flags. */
|
|
unsigned int flags;
|
|
} VAProcFilterParameterBufferDeinterlacing;
|
|
|
|
/**
|
|
* \brief Color balance filter parametrization.
|
|
*
|
|
* This buffer defines color balance attributes. A VA buffer can hold
|
|
* several color balance attributes by creating a VA buffer of desired
|
|
* number of elements. This can be achieved by the following pseudo-code:
|
|
*
|
|
* \code
|
|
* enum { kHue, kSaturation, kBrightness, kContrast };
|
|
*
|
|
* // Initial color balance parameters
|
|
* static const VAProcFilterParameterBufferColorBalance colorBalanceParams[4] =
|
|
* {
|
|
* [kHue] =
|
|
* { VAProcFilterColorBalance, VAProcColorBalanceHue, 0.5 },
|
|
* [kSaturation] =
|
|
* { VAProcFilterColorBalance, VAProcColorBalanceSaturation, 0.5 },
|
|
* [kBrightness] =
|
|
* { VAProcFilterColorBalance, VAProcColorBalanceBrightness, 0.5 },
|
|
* [kSaturation] =
|
|
* { VAProcFilterColorBalance, VAProcColorBalanceSaturation, 0.5 }
|
|
* };
|
|
*
|
|
* // Create buffer
|
|
* VABufferID colorBalanceBuffer;
|
|
* vaCreateBuffer(va_dpy, vpp_ctx,
|
|
* VAProcFilterParameterBufferType, sizeof(*pColorBalanceParam), 4,
|
|
* colorBalanceParams,
|
|
* &colorBalanceBuffer
|
|
* );
|
|
*
|
|
* VAProcFilterParameterBufferColorBalance *pColorBalanceParam;
|
|
* vaMapBuffer(va_dpy, colorBalanceBuffer, &pColorBalanceParam);
|
|
* {
|
|
* // Change brightness only
|
|
* pColorBalanceBuffer[kBrightness].value = 0.75;
|
|
* }
|
|
* vaUnmapBuffer(va_dpy, colorBalanceBuffer);
|
|
* \endcode
|
|
*/
|
|
typedef struct _VAProcFilterParameterBufferColorBalance {
|
|
/** \brief Filter type. Shall be set to #VAProcFilterColorBalance. */
|
|
VAProcFilterType type;
|
|
/** \brief Color balance attribute. */
|
|
VAProcColorBalanceType attrib;
|
|
/**
|
|
* \brief Color balance value.
|
|
*
|
|
* Special case for automatically adjusted attributes. e.g.
|
|
* #VAProcColorBalanceAutoSaturation,
|
|
* #VAProcColorBalanceAutoBrightness,
|
|
* #VAProcColorBalanceAutoContrast.
|
|
* - If \ref value is \c 1.0 +/- \c FLT_EPSILON, the attribute is
|
|
* automatically adjusted and overrides any other attribute of
|
|
* the same type that would have been set explicitly;
|
|
* - If \ref value is \c 0.0 +/- \c FLT_EPSILON, the attribute is
|
|
* disabled and other attribute of the same type is used instead.
|
|
*/
|
|
float value;
|
|
} VAProcFilterParameterBufferColorBalance;
|
|
|
|
/**
|
|
* \brief Default filter cap specification (single range value).
|
|
*
|
|
* Unless there is a filter-specific cap structure, #VAProcFilterCap is the
|
|
* default type to use for output caps from vaQueryVideoProcFilterCaps().
|
|
*/
|
|
typedef struct _VAProcFilterCap {
|
|
/** \brief Range of supported values for the filter. */
|
|
VAProcFilterValueRange range;
|
|
} VAProcFilterCap;
|
|
|
|
/** \brief Capabilities specification for the deinterlacing filter. */
|
|
typedef struct _VAProcFilterCapDeinterlacing {
|
|
/** \brief Deinterlacing algorithm. */
|
|
VAProcDeinterlacingType type;
|
|
} VAProcFilterCapDeinterlacing;
|
|
|
|
/** \brief Capabilities specification for the color balance filter. */
|
|
typedef struct _VAProcFilterCapColorBalance {
|
|
/** \brief Color balance operation. */
|
|
VAProcColorBalanceType type;
|
|
/** \brief Range of supported values for the specified operation. */
|
|
VAProcFilterValueRange range;
|
|
} VAProcFilterCapColorBalance;
|
|
|
|
/**
|
|
* \brief Queries video processing filters.
|
|
*
|
|
* This function returns the list of video processing filters supported
|
|
* by the driver. The \c filters array is allocated by the user and
|
|
* \c num_filters shall be initialized to the number of allocated
|
|
* elements in that array. Upon successful return, the actual number
|
|
* of filters will be overwritten into \c num_filters. Otherwise,
|
|
* \c VA_STATUS_ERROR_MAX_NUM_EXCEEDED is returned and \c num_filters
|
|
* is adjusted to the number of elements that would be returned if enough
|
|
* space was available.
|
|
*
|
|
* The list of video processing filters supported by the driver shall
|
|
* be ordered in the way they can be iteratively applied. This is needed
|
|
* for both correctness, i.e. some filters would not mean anything if
|
|
* applied at the beginning of the pipeline; but also for performance
|
|
* since some filters can be applied in a single pass (e.g. noise
|
|
* reduction + deinterlacing).
|
|
*
|
|
* @param[in] dpy the VA display
|
|
* @param[in] context the video processing context
|
|
* @param[out] filters the output array of #VAProcFilterType elements
|
|
* @param[in,out] num_filters the number of elements allocated on input,
|
|
* the number of elements actually filled in on output
|
|
*/
|
|
VAStatus
|
|
vaQueryVideoProcFilters(
|
|
VADisplay dpy,
|
|
VAContextID context,
|
|
VAProcFilterType *filters,
|
|
unsigned int *num_filters
|
|
);
|
|
|
|
/**
|
|
* \brief Queries video filter capabilities.
|
|
*
|
|
* This function returns the list of capabilities supported by the driver
|
|
* for a specific video filter. The \c filter_caps array is allocated by
|
|
* the user and \c num_filter_caps shall be initialized to the number
|
|
* of allocated elements in that array. Upon successful return, the
|
|
* actual number of filters will be overwritten into \c num_filter_caps.
|
|
* Otherwise, \c VA_STATUS_ERROR_MAX_NUM_EXCEEDED is returned and
|
|
* \c num_filter_caps is adjusted to the number of elements that would be
|
|
* returned if enough space was available.
|
|
*
|
|
* @param[in] dpy the VA display
|
|
* @param[in] context the video processing context
|
|
* @param[in] type the video filter type
|
|
* @param[out] filter_caps the output array of #VAProcFilterCap elements
|
|
* @param[in,out] num_filter_caps the number of elements allocated on input,
|
|
* the number of elements actually filled in output
|
|
*/
|
|
VAStatus
|
|
vaQueryVideoProcFilterCaps(
|
|
VADisplay dpy,
|
|
VAContextID context,
|
|
VAProcFilterType type,
|
|
void *filter_caps,
|
|
unsigned int *num_filter_caps
|
|
);
|
|
|
|
/**
|
|
* \brief Queries video processing pipeline capabilities.
|
|
*
|
|
* This function returns the video processing pipeline capabilities. The
|
|
* \c filters array defines the video processing pipeline and is an array
|
|
* of buffers holding filter parameters.
|
|
*
|
|
* Note: the #VAProcPipelineCaps structure contains user-provided arrays.
|
|
* If non-NULL, the corresponding \c num_* fields shall be filled in on
|
|
* input with the number of elements allocated. Upon successful return,
|
|
* the actual number of elements will be overwritten into the \c num_*
|
|
* fields. Otherwise, \c VA_STATUS_ERROR_MAX_NUM_EXCEEDED is returned
|
|
* and \c num_* fields are adjusted to the number of elements that would
|
|
* be returned if enough space was available.
|
|
*
|
|
* @param[in] dpy the VA display
|
|
* @param[in] context the video processing context
|
|
* @param[in] filters the array of VA buffers defining the video
|
|
* processing pipeline
|
|
* @param[in] num_filters the number of elements in filters
|
|
* @param[in,out] pipeline_caps the video processing pipeline capabilities
|
|
*/
|
|
VAStatus
|
|
vaQueryVideoProcPipelineCaps(
|
|
VADisplay dpy,
|
|
VAContextID context,
|
|
VABufferID *filters,
|
|
unsigned int num_filters,
|
|
VAProcPipelineCaps *pipeline_caps
|
|
);
|
|
|
|
/**@}*/
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* VA_VPP_H */
|