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diff --git a/va/va_vpp.h b/va/va_vpp.h deleted file mode 100644 index 082f1d5..0000000 --- a/va/va_vpp.h +++ /dev/null @@ -1,744 +0,0 @@ -/* - * Copyright (c) 2007-2011 Intel Corporation. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the - * "Software"), to deal in the Software without restriction, including - * without limitation the rights to use, copy, modify, merge, publish, - * distribute, sub license, and/or sell copies of the Software, and to - * permit persons to whom the Software is furnished to do so, subject to - * the following conditions: - * - * The above copyright notice and this permission notice (including the - * next paragraph) shall be included in all copies or substantial portions - * of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. - * IN NO EVENT SHALL INTEL AND/OR ITS SUPPLIERS BE LIABLE FOR - * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, - * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE - * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - -/** - * \file va_vpp.h - * \brief The video processing API - * - * This file contains the \ref api_vpp "Video processing API". - */ - -#ifndef VA_VPP_H -#define VA_VPP_H - -#ifdef __cplusplus -extern "C" { -#endif - -/** - * \defgroup api_vpp Video processing API - * - * @{ - * - * The video processing API uses the same paradigm as for decoding: - * - Query for supported filters; - * - Set up a video processing pipeline; - * - Send video processing parameters through VA buffers. - * - * \section api_vpp_caps Query for supported filters - * - * Checking whether video processing is supported can be performed - * with vaQueryConfigEntrypoints() and the profile argument set to - * #VAProfileNone. If video processing is supported, then the list of - * returned entry-points will include #VAEntrypointVideoProc. - * - * \code - * VAEntrypoint *entrypoints; - * int i, num_entrypoints, supportsVideoProcessing = 0; - * - * num_entrypoints = vaMaxNumEntrypoints(); - * entrypoints = malloc(num_entrypoints * sizeof(entrypoints[0]); - * vaQueryConfigEntrypoints(va_dpy, VAProfileNone, - * entrypoints, &num_entrypoints); - * - * for (i = 0; !supportsVideoProcessing && i < num_entrypoints; i++) { - * if (entrypoints[i] == VAEntrypointVideoProc) - * supportsVideoProcessing = 1; - * } - * \endcode - * - * Then, the vaQueryVideoProcFilters() function is used to query the - * list of video processing filters. - * - * \code - * VAProcFilterType filters[VAProcFilterCount]; - * unsigned int num_filters = VAProcFilterCount; - * - * // num_filters shall be initialized to the length of the array - * vaQueryVideoProcFilters(va_dpy, vpp_ctx, &filters, &num_filters); - * \endcode - * - * Finally, individual filter capabilities can be checked with - * vaQueryVideoProcFilterCaps(). - * - * \code - * VAProcFilterCap denoise_caps; - * unsigned int num_denoise_caps = 1; - * vaQueryVideoProcFilterCaps(va_dpy, vpp_ctx, - * VAProcFilterNoiseReduction, - * &denoise_caps, &num_denoise_caps - * ); - * - * VAProcFilterCapDeinterlacing deinterlacing_caps[VAProcDeinterlacingCount]; - * unsigned int num_deinterlacing_caps = VAProcDeinterlacingCount; - * vaQueryVideoProcFilterCaps(va_dpy, vpp_ctx, - * VAProcFilterDeinterlacing, - * &deinterlacing_caps, &num_deinterlacing_caps - * ); - * \endcode - * - * \section api_vpp_setup Set up a video processing pipeline - * - * A video processing pipeline buffer is created for each source - * surface we want to process. However, buffers holding filter - * parameters can be created once and for all. Rationale is to avoid - * multiple creation/destruction chains of filter buffers and also - * because filter parameters generally won't change frame after - * frame. e.g. this makes it possible to implement a checkerboard of - * videos where the same filters are applied to each video source. - * - * The general control flow is demonstrated by the following pseudo-code: - * \code - * // Create filters - * VABufferID denoise_filter, deint_filter; - * VABufferID filter_bufs[VAProcFilterCount]; - * unsigned int num_filter_bufs; - * - * for (i = 0; i < num_filters; i++) { - * switch (filters[i]) { - * case VAProcFilterNoiseReduction: { // Noise reduction filter - * VAProcFilterParameterBuffer denoise; - * denoise.type = VAProcFilterNoiseReduction; - * denoise.value = 0.5; - * vaCreateBuffer(va_dpy, vpp_ctx, - * VAProcFilterParameterBufferType, sizeof(denoise), 1, - * &denoise, &denoise_filter - * ); - * filter_bufs[num_filter_bufs++] = denoise_filter; - * break; - * } - * - * case VAProcFilterDeinterlacing: // Motion-adaptive deinterlacing - * for (j = 0; j < num_deinterlacing_caps; j++) { - * VAProcFilterCapDeinterlacing * const cap = &deinterlacing_caps[j]; - * if (cap->type != VAProcDeinterlacingMotionAdaptive) - * continue; - * - * VAProcFilterParameterBufferDeinterlacing deint; - * deint.type = VAProcFilterDeinterlacing; - * deint.algorithm = VAProcDeinterlacingMotionAdaptive; - * vaCreateBuffer(va_dpy, vpp_ctx, - * VAProcFilterParameterBufferType, sizeof(deint), 1, - * &deint, &deint_filter - * ); - * filter_bufs[num_filter_bufs++] = deint_filter; - * } - * } - * } - * \endcode - * - * Once the video processing pipeline is set up, the caller shall check the - * implied capabilities and requirements with vaQueryVideoProcPipelineCaps(). - * This function can be used to validate the number of reference frames are - * needed by the specified deinterlacing algorithm, the supported color - * primaries, etc. - * \code - * // Create filters - * VAProcPipelineCaps pipeline_caps; - * VASurfaceID *forward_references; - * unsigned int num_forward_references; - * VASurfaceID *backward_references; - * unsigned int num_backward_references; - * VAProcColorStandardType in_color_standards[VAProcColorStandardCount]; - * VAProcColorStandardType out_color_standards[VAProcColorStandardCount]; - * - * pipeline_caps.input_color_standards = NULL; - * pipeline_caps.num_input_color_standards = ARRAY_ELEMS(in_color_standards); - * pipeline_caps.output_color_standards = NULL; - * pipeline_caps.num_output_color_standards = ARRAY_ELEMS(out_color_standards); - * vaQueryVideoProcPipelineCaps(va_dpy, vpp_ctx, - * filter_bufs, num_filter_bufs, - * &pipeline_caps - * ); - * - * num_forward_references = pipeline_caps.num_forward_references; - * forward_references = - * malloc(num__forward_references * sizeof(VASurfaceID)); - * num_backward_references = pipeline_caps.num_backward_references; - * backward_references = - * malloc(num_backward_references * sizeof(VASurfaceID)); - * \endcode - * - * \section api_vpp_submit Send video processing parameters through VA buffers - * - * Video processing pipeline parameters are submitted for each source - * surface to process. Video filter parameters can also change, per-surface. - * e.g. the list of reference frames used for deinterlacing. - * - * \code - * foreach (iteration) { - * vaBeginPicture(va_dpy, vpp_ctx, vpp_surface); - * foreach (surface) { - * VARectangle output_region; - * VABufferID pipeline_buf; - * VAProcPipelineParameterBuffer *pipeline_param; - * - * vaCreateBuffer(va_dpy, vpp_ctx, - * VAProcPipelineParameterBuffer, sizeof(*pipeline_param), 1, - * NULL, &pipeline_buf - * ); - * - * // Setup output region for this surface - * // e.g. upper left corner for the first surface - * output_region.x = BORDER; - * output_region.y = BORDER; - * output_region.width = - * (vpp_surface_width - (Nx_surfaces + 1) * BORDER) / Nx_surfaces; - * output_region.height = - * (vpp_surface_height - (Ny_surfaces + 1) * BORDER) / Ny_surfaces; - * - * vaMapBuffer(va_dpy, pipeline_buf, &pipeline_param); - * pipeline_param->surface = surface; - * pipeline_param->surface_region = NULL; - * pipeline_param->output_region = &output_region; - * pipeline_param->output_background_color = 0; - * if (first surface to render) - * pipeline_param->output_background_color = 0xff000000; // black - * pipeline_param->filter_flags = VA_FILTER_SCALING_HQ; - * pipeline_param->filters = filter_bufs; - * pipeline_param->num_filters = num_filter_bufs; - * vaUnmapBuffer(va_dpy, pipeline_buf); - * - * // Update reference frames for deinterlacing, if necessary - * pipeline_param->forward_references = forward_references; - * pipeline_param->num_forward_references = num_forward_references_used; - * pipeline_param->backward_references = backward_references; - * pipeline_param->num_backward_references = num_bacward_references_used; - * - * // Apply filters - * vaRenderPicture(va_dpy, vpp_ctx, &pipeline_buf, 1); - * } - * vaEndPicture(va_dpy, vpp_ctx); - * } - * \endcode - */ - -/** \brief Video filter types. */ -typedef enum _VAProcFilterType { - VAProcFilterNone = 0, - /** \brief Noise reduction filter. */ - VAProcFilterNoiseReduction, - /** \brief Deinterlacing filter. */ - VAProcFilterDeinterlacing, - /** \brief Sharpening filter. */ - VAProcFilterSharpening, - /** \brief Color balance parameters. */ - VAProcFilterColorBalance, - /** \brief Skin Tone Enhancement. */ - VAProcFilterSkinToneEnhancement, - VAProcFilterCount -} VAProcFilterType; - -/** \brief Deinterlacing types. */ -typedef enum _VAProcDeinterlacingType { - VAProcDeinterlacingNone = 0, - /** \brief Bob deinterlacing algorithm. */ - VAProcDeinterlacingBob, - /** \brief Weave deinterlacing algorithm. */ - VAProcDeinterlacingWeave, - /** \brief Motion adaptive deinterlacing algorithm. */ - VAProcDeinterlacingMotionAdaptive, - /** \brief Motion compensated deinterlacing algorithm. */ - VAProcDeinterlacingMotionCompensated, - /** \brief Number of deinterlacing algorithms. */ - VAProcDeinterlacingCount -} VAProcDeinterlacingType; - -/** \brief Color balance types. */ -typedef enum _VAProcColorBalanceType { - VAProcColorBalanceNone = 0, - /** \brief Hue. */ - VAProcColorBalanceHue, - /** \brief Saturation. */ - VAProcColorBalanceSaturation, - /** \brief Brightness. */ - VAProcColorBalanceBrightness, - /** \brief Contrast. */ - VAProcColorBalanceContrast, - /** \brief Automatically adjusted saturation. */ - VAProcColorBalanceAutoSaturation, - /** \brief Automatically adjusted brightness. */ - VAProcColorBalanceAutoBrightness, - /** \brief Automatically adjusted contrast. */ - VAProcColorBalanceAutoContrast, - /** \brief Number of color balance attributes. */ - VAProcColorBalanceCount -} VAProcColorBalanceType; - -/** \brief Color standard types. */ -typedef enum _VAProcColorStandardType { - VAProcColorStandardNone = 0, - /** \brief ITU-R BT.601. */ - VAProcColorStandardBT601, - /** \brief ITU-R BT.709. */ - VAProcColorStandardBT709, - /** \brief ITU-R BT.470-2 System M. */ - VAProcColorStandardBT470M, - /** \brief ITU-R BT.470-2 System B, G. */ - VAProcColorStandardBT470BG, - /** \brief SMPTE-170M. */ - VAProcColorStandardSMPTE170M, - /** \brief SMPTE-240M. */ - VAProcColorStandardSMPTE240M, - /** \brief Generic film. */ - VAProcColorStandardGenericFilm, - /** \brief Number of color standards. */ - VAProcColorStandardCount -} VAProcColorStandardType; - -/** @name Video pipeline flags */ -/**@{*/ -/** \brief Specifies whether to apply subpictures when processing a surface. */ -#define VA_PROC_PIPELINE_SUBPICTURES 0x00000001 -/** - * \brief Specifies whether to apply power or performance - * optimizations to a pipeline. - * - * When processing several surfaces, it may be necessary to prioritize - * more certain pipelines than others. This flag is only a hint to the - * video processor so that it can omit certain filters to save power - * for example. Typically, this flag could be used with video surfaces - * decoded from a secondary bitstream. - */ -#define VA_PROC_PIPELINE_FAST 0x00000002 -/**@}*/ - -/** @name Video filter flags */ -/**@{*/ -/** \brief Specifies whether the filter shall be present in the pipeline. */ -#define VA_PROC_FILTER_MANDATORY 0x00000001 -/**@}*/ - -/** @name Pipeline end flags */ -/**@{*/ -/** \brief Specifies the pipeline is the last. */ -#define VA_PIPELINE_FLAG_END 0x00000004 -/**@}*/ - -/** \brief Video processing pipeline capabilities. */ -typedef struct _VAProcPipelineCaps { - /** \brief Pipeline flags. See VAProcPipelineParameterBuffer::pipeline_flags. */ - unsigned int pipeline_flags; - /** \brief Extra filter flags. See VAProcPipelineParameterBuffer::filter_flags. */ - unsigned int filter_flags; - /** \brief Number of forward reference frames that are needed. */ - unsigned int num_forward_references; - /** \brief Number of backward reference frames that are needed. */ - unsigned int num_backward_references; - /** \brief List of color standards supported on input. */ - VAProcColorStandardType *input_color_standards; - /** \brief Number of elements in \ref input_color_standards array. */ - unsigned int num_input_color_standards; - /** \brief List of color standards supported on output. */ - VAProcColorStandardType *output_color_standards; - /** \brief Number of elements in \ref output_color_standards array. */ - unsigned int num_output_color_standards; -} VAProcPipelineCaps; - -/** \brief Specification of values supported by the filter. */ -typedef struct _VAProcFilterValueRange { - /** \brief Minimum value supported, inclusive. */ - float min_value; - /** \brief Maximum value supported, inclusive. */ - float max_value; - /** \brief Default value. */ - float default_value; - /** \brief Step value that alters the filter behaviour in a sensible way. */ - float step; -} VAProcFilterValueRange; - -/** - * \brief Video processing pipeline configuration. - * - * This buffer defines a video processing pipeline. The actual filters to - * be applied are provided in the \c filters field, they can be re-used - * in other processing pipelines. - * - * The target surface is specified by the \c render_target argument of - * \c vaBeginPicture(). The general usage model is described as follows: - * - \c vaBeginPicture(): specify the target surface that receives the - * processed output; - * - \c vaRenderPicture(): specify a surface to be processed and composed - * into the \c render_target. Use as many \c vaRenderPicture() calls as - * necessary surfaces to compose ; - * - \c vaEndPicture(): tell the driver to start processing the surfaces - * with the requested filters. - * - * If a filter (e.g. noise reduction) needs to be applied with different - * values for multiple surfaces, the application needs to create as many - * filter parameter buffers as necessary. i.e. the filter parameters shall - * not change between two calls to \c vaRenderPicture(). - * - * For composition usage models, the first surface to process will generally - * use an opaque background color, i.e. \c output_background_color set with - * the most significant byte set to \c 0xff. For instance, \c 0xff000000 for - * a black background. Then, subsequent surfaces would use a transparent - * background color. - */ -typedef struct _VAProcPipelineParameterBuffer { - /** - * \brief Source surface ID. - * - * ID of the source surface to process. If subpictures are associated - * with the video surfaces then they shall be rendered to the target - * surface, if the #VA_PROC_PIPELINE_SUBPICTURES pipeline flag is set. - */ - VASurfaceID surface; - /** - * \brief Region within the source surface to be processed. - * - * Pointer to a #VARectangle defining the region within the source - * surface to be processed. If NULL, \c surface_region implies the - * whole surface. - */ - const VARectangle *surface_region; - /** - * \brief Requested input color primaries. - * - * Color primaries are implicitly converted throughout the processing - * pipeline. The video processor chooses the best moment to apply - * this conversion. The set of supported color primaries primaries - * for input shall be queried with vaQueryVideoProcPipelineCaps(). - */ - VAProcColorStandardType surface_color_standard; - /** - * \brief Region within the output surface. - * - * Pointer to a #VARectangle defining the region within the output - * surface that receives the processed pixels. If NULL, \c output_region - * implies the whole surface. - * - * Note that any pixels residing outside the specified region will - * be filled in with the \ref output_background_color. - */ - const VARectangle *output_region; - /** - * \brief Background color. - * - * Background color used to fill in pixels that reside outside of the - * specified \ref output_region. The color is specified in ARGB format: - * [31:24] alpha, [23:16] red, [15:8] green, [7:0] blue. - * - * Unless the alpha value is zero or the \ref output_region represents - * the whole target surface size, implementations shall not render the - * source surface to the target surface directly. Rather, in order to - * maintain the exact semantics of \ref output_background_color, the - * driver shall use a temporary surface and fill it in with the - * appropriate background color. Next, the driver will blend this - * temporary surface into the target surface. - */ - unsigned int output_background_color; - /** - * \brief Requested output color primaries. - */ - VAProcColorStandardType output_color_standard; - /** - * \brief Pipeline filters. See video pipeline flags. - * - * Flags to control the pipeline, like whether to apply subpictures - * or not, notify the driver that it can opt for power optimizations, - * should this be needed. - */ - unsigned int pipeline_flags; - /** - * \brief Extra filter flags. See vaPutSurface() flags. - * - * Filter flags are used as a fast path, wherever possible, to use - * vaPutSurface() flags instead of explicit filter parameter buffers. - * - * 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. - * - */ - 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 */ |