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25 * Video Acceleration (VA) API Specification
28 * <jonathan.bian@intel.com>
31 * rev 0.10 (12/10/2006 Jonathan Bian) - Initial draft
32 * rev 0.11 (12/15/2006 Jonathan Bian) - Fixed some errors
33 * rev 0.12 (02/05/2007 Jonathan Bian) - Added VC-1 data structures for slice level decode
34 * rev 0.13 (02/28/2007 Jonathan Bian) - Added GetDisplay()
35 * rev 0.14 (04/13/2007 Jonathan Bian) - Fixed MPEG-2 PictureParameter structure, cleaned up a few funcs.
36 * rev 0.15 (04/20/2007 Jonathan Bian) - Overhauled buffer management
37 * rev 0.16 (05/02/2007 Jonathan Bian) - Added error codes and fixed some issues with configuration
38 * rev 0.17 (05/07/2007 Jonathan Bian) - Added H.264/AVC data structures for slice level decode.
39 * rev 0.18 (05/14/2007 Jonathan Bian) - Added data structures for MPEG-4 slice level decode
40 * and MPEG-2 motion compensation.
41 * rev 0.19 (08/06/2007 Jonathan Bian) - Removed extra type for bitplane data.
42 * rev 0.20 (08/08/2007 Jonathan Bian) - Added missing fields to VC-1 PictureParameter structure.
43 * rev 0.21 (08/20/2007 Jonathan Bian) - Added image and subpicture support.
44 * rev 0.22 (08/27/2007 Jonathan Bian) - Added support for chroma-keying and global alpha.
45 * rev 0.23 (09/11/2007 Jonathan Bian) - Fixed some issues with images and subpictures.
46 * rev 0.24 (09/18/2007 Jonathan Bian) - Added display attributes.
47 * rev 0.25 (10/18/2007 Jonathan Bian) - Changed to use IDs only for some types.
48 * rev 0.26 (11/07/2007 Waldo Bastian) - Change vaCreateBuffer semantics
49 * rev 0.27 (11/19/2007 Matt Sottek) - Added DeriveImage
50 * rev 0.28 (12/06/2007 Jonathan Bian) - Added new versions of PutImage and AssociateSubpicture
52 * rev 0.29 (02/07/2008 Jonathan Bian) - VC1 parameter fixes,
53 * added VA_STATUS_ERROR_RESOLUTION_NOT_SUPPORTED
54 * rev 0.30 (03/01/2009 Jonathan Bian) - Added encoding support for H.264 BP and MPEG-4 SP and fixes
55 * for ISO C conformance.
56 * rev 0.31 (09/02/2009 Gwenole Beauchesne) - VC-1/H264 fields change for VDPAU and XvBA backend
57 * Application needs to relink with the new library.
59 * rev 0.31.1 (03/29/2009) - Data structure for JPEG encode
60 * rev 0.31.2 (01/13/2011 Anthony Pabon)- Added a flag to indicate Subpicture coordinates are screen
61 * screen relative rather than source video relative.
62 * rev 0.32.0 (01/13/2011 Xiang Haihao) - Add profile into VAPictureParameterBufferVC1
63 * update VAAPI to 0.32.0
66 * Some concepts borrowed from XvMC and XvImage.
67 * Waldo Bastian (Intel), Matt Sottek (Intel), Austin Yuan (Intel), and Gwenole Beauchesne (SDS)
68 * contributed to various aspects of the API.
75 * This file contains the \ref api_core "Core API".
83 #include <va/va_version.h>
90 * \mainpage Video Acceleration (VA) API
92 * \section intro Introduction
94 * The main motivation for VA-API (Video Acceleration API) is to
95 * enable hardware accelerated video decode and encode at various
96 * entry-points (VLD, IDCT, Motion Compensation etc.) for the
97 * prevailing coding standards today (MPEG-2, MPEG-4 ASP/H.263, MPEG-4
98 * AVC/H.264, VC-1/VMW3, and JPEG).
100 * VA-API is split into several modules:
102 * - \ref api_enc_h264
107 * \defgroup api_core Core API
115 The VA API is intended to provide an interface between a video decode/encode/display
116 application (client) and a hardware accelerator (server), to off-load
117 video decode/encode/display operations from the host to the hardware accelerator at various
120 The basic operation steps are:
122 - Negotiate a mutually acceptable configuration with the server to lock
123 down profile, entrypoints, and other attributes that will not change on
124 a frame-by-frame basis.
125 - Create a decode context which represents a "virtualized" hardware decode
127 - Get and fill decode buffers with picture level, slice level and macroblock
128 level data (depending on entrypoints)
129 - Pass the decode buffers to the server to decode the current frame
131 Initialization & Configuration Management
133 - Find out supported profiles
134 - Find out entrypoints for a given profile
135 - Find out configuration attributes for a given profile/entrypoint pair
136 - Create a configuration for use by the decoder
140 typedef void* VADisplay; /* window system dependent */
142 typedef int VAStatus; /** Return status type from functions */
143 /** Values for the return status */
144 #define VA_STATUS_SUCCESS 0x00000000
145 #define VA_STATUS_ERROR_OPERATION_FAILED 0x00000001
146 #define VA_STATUS_ERROR_ALLOCATION_FAILED 0x00000002
147 #define VA_STATUS_ERROR_INVALID_DISPLAY 0x00000003
148 #define VA_STATUS_ERROR_INVALID_CONFIG 0x00000004
149 #define VA_STATUS_ERROR_INVALID_CONTEXT 0x00000005
150 #define VA_STATUS_ERROR_INVALID_SURFACE 0x00000006
151 #define VA_STATUS_ERROR_INVALID_BUFFER 0x00000007
152 #define VA_STATUS_ERROR_INVALID_IMAGE 0x00000008
153 #define VA_STATUS_ERROR_INVALID_SUBPICTURE 0x00000009
154 #define VA_STATUS_ERROR_ATTR_NOT_SUPPORTED 0x0000000a
155 #define VA_STATUS_ERROR_MAX_NUM_EXCEEDED 0x0000000b
156 #define VA_STATUS_ERROR_UNSUPPORTED_PROFILE 0x0000000c
157 #define VA_STATUS_ERROR_UNSUPPORTED_ENTRYPOINT 0x0000000d
158 #define VA_STATUS_ERROR_UNSUPPORTED_RT_FORMAT 0x0000000e
159 #define VA_STATUS_ERROR_UNSUPPORTED_BUFFERTYPE 0x0000000f
160 #define VA_STATUS_ERROR_SURFACE_BUSY 0x00000010
161 #define VA_STATUS_ERROR_FLAG_NOT_SUPPORTED 0x00000011
162 #define VA_STATUS_ERROR_INVALID_PARAMETER 0x00000012
163 #define VA_STATUS_ERROR_RESOLUTION_NOT_SUPPORTED 0x00000013
164 #define VA_STATUS_ERROR_UNIMPLEMENTED 0x00000014
165 #define VA_STATUS_ERROR_SURFACE_IN_DISPLAYING 0x00000015
166 #define VA_STATUS_ERROR_INVALID_IMAGE_FORMAT 0x00000016
167 #define VA_STATUS_ERROR_DECODING_ERROR 0x00000017
168 #define VA_STATUS_ERROR_ENCODING_ERROR 0x00000018
170 * \brief An invalid/unsupported value was supplied.
172 * This is a catch-all error code for invalid or unsupported values.
173 * e.g. value exceeding the valid range, invalid type in the context
174 * of generic attribute values.
176 #define VA_STATUS_ERROR_INVALID_VALUE 0x00000019
177 /** \brief An unsupported filter was supplied. */
178 #define VA_STATUS_ERROR_UNSUPPORTED_FILTER 0x00000020
179 /** \brief An invalid filter chain was supplied. */
180 #define VA_STATUS_ERROR_INVALID_FILTER_CHAIN 0x00000021
181 /** \brief Indicate HW busy (e.g. run multiple encoding simultaneously). */
182 #define VA_STATUS_ERROR_HW_BUSY 0x00000022
183 /** \brief An unsupported memory type was supplied. */
184 #define VA_STATUS_ERROR_UNSUPPORTED_MEMORY_TYPE 0x00000024
185 #define VA_STATUS_ERROR_UNKNOWN 0xFFFFFFFF
187 /** De-interlacing flags for vaPutSurface() */
188 #define VA_FRAME_PICTURE 0x00000000
189 #define VA_TOP_FIELD 0x00000001
190 #define VA_BOTTOM_FIELD 0x00000002
193 * Enabled the positioning/cropping/blending feature:
194 * 1, specify the video playback position in the isurface
195 * 2, specify the cropping info for video playback
196 * 3, encoded video will blend with background color
198 #define VA_ENABLE_BLEND 0x00000004 /* video area blend with the constant color */
201 * Clears the drawable with background color.
202 * for hardware overlay based implementation this flag
203 * can be used to turn off the overlay
205 #define VA_CLEAR_DRAWABLE 0x00000008
207 /** Color space conversion flags for vaPutSurface() */
208 #define VA_SRC_BT601 0x00000010
209 #define VA_SRC_BT709 0x00000020
210 #define VA_SRC_SMPTE_240 0x00000040
212 /** Scaling flags for vaPutSurface() */
213 #define VA_FILTER_SCALING_DEFAULT 0x00000000
214 #define VA_FILTER_SCALING_FAST 0x00000100
215 #define VA_FILTER_SCALING_HQ 0x00000200
216 #define VA_FILTER_SCALING_NL_ANAMORPHIC 0x00000300
217 #define VA_FILTER_SCALING_MASK 0x00000f00
220 * Returns a short english description of error_status
222 const char *vaErrorStr(VAStatus error_status);
226 * A display must be obtained by calling vaGetDisplay() before calling
227 * vaInitialize() and other functions. This connects the API to the
228 * native window system.
229 * For X Windows, native_dpy would be from XOpenDisplay()
231 typedef void* VANativeDisplay; /* window system dependent */
233 int vaDisplayIsValid(VADisplay dpy);
236 * Initialize the library
238 VAStatus vaInitialize (
240 int *major_version, /* out */
241 int *minor_version /* out */
245 * After this call, all library internal resources will be cleaned up
247 VAStatus vaTerminate (
252 * vaQueryVendorString returns a pointer to a zero-terminated string
253 * describing some aspects of the VA implemenation on a specific
254 * hardware accelerator. The format of the returned string is vendor
255 * specific and at the discretion of the implementer.
256 * e.g. for the Intel GMA500 implementation, an example would be:
257 * "Intel GMA500 - 2.0.0.32L.0005"
259 const char *vaQueryVendorString (
263 typedef int (*VAPrivFunc)();
266 * Return a function pointer given a function name in the library.
267 * This allows private interfaces into the library
269 VAPrivFunc vaGetLibFunc (
274 /** Currently defined profiles */
277 /** \brief Profile ID used for video processing. */
279 VAProfileMPEG2Simple = 0,
280 VAProfileMPEG2Main = 1,
281 VAProfileMPEG4Simple = 2,
282 VAProfileMPEG4AdvancedSimple = 3,
283 VAProfileMPEG4Main = 4,
284 VAProfileH264Baseline = 5,
285 VAProfileH264Main = 6,
286 VAProfileH264High = 7,
287 VAProfileVC1Simple = 8,
288 VAProfileVC1Main = 9,
289 VAProfileVC1Advanced = 10,
290 VAProfileH263Baseline = 11,
291 VAProfileJPEGBaseline = 12,
292 VAProfileH264ConstrainedBaseline = 13,
293 VAProfileVP8Version0_3 = 14,
294 VAProfileH264MultiviewHigh = 15,
295 VAProfileH264StereoHigh = 16
299 * Currently defined entrypoints
305 VAEntrypointIDCT = 3,
306 VAEntrypointMoComp = 4,
307 VAEntrypointDeblocking = 5,
308 VAEntrypointEncSlice = 6, /* slice level encode */
309 VAEntrypointEncPicture = 7, /* pictuer encode, JPEG, etc */
310 VAEntrypointVideoProc = 10, /**< Video pre/post-processing. */
313 /** Currently defined configuration attribute types */
316 VAConfigAttribRTFormat = 0,
317 VAConfigAttribSpatialResidual = 1,
318 VAConfigAttribSpatialClipping = 2,
319 VAConfigAttribIntraResidual = 3,
320 VAConfigAttribEncryption = 4,
321 VAConfigAttribRateControl = 5,
323 /** @name Attributes for encoding */
326 * \brief Packed headers mode. Read/write.
328 * This attribute determines what packed headers the driver supports,
329 * through vaGetConfigAttributes(); and what packed headers the user
330 * will be providing to the driver, through vaCreateConfig(), if the
331 * driver supports those.
333 * See \c VA_ENC_PACKED_HEADER_xxx for the list of packed headers.
335 VAConfigAttribEncPackedHeaders = 10,
337 * \brief Interlaced mode. Read/write.
339 * This attribute determines what kind of interlaced encoding mode
340 * the driver supports.
342 * See \c VA_ENC_INTERLACED_xxx for the list of interlaced modes.
344 VAConfigAttribEncInterlaced = 11,
346 * \brief Maximum number of reference frames. Read-only.
348 * This attribute determines the maximum number of reference
349 * frames supported for encoding.
351 * Note: for H.264 encoding, the value represents the maximum number
352 * of reference frames for both the reference picture list 0 (bottom
353 * 16 bits) and the reference picture list 1 (top 16 bits).
355 VAConfigAttribEncMaxRefFrames = 13,
357 * \brief Maximum number of slices per frame. Read-only.
359 * This attribute determines the maximum number of slices the
360 * driver can support to encode a single frame.
362 VAConfigAttribEncMaxSlices = 14,
364 * \brief Slice structure. Read-only.
366 * This attribute determines slice structures supported by the
367 * driver for encoding. This attribute is a hint to the user so
368 * that he can choose a suitable surface size and how to arrange
369 * the encoding process of multiple slices per frame.
371 * More specifically, for H.264 encoding, this attribute
372 * determines the range of accepted values to
373 * VAEncSliceParameterBufferH264::macroblock_address and
374 * VAEncSliceParameterBufferH264::num_macroblocks.
376 * See \c VA_ENC_SLICE_STRUCTURE_xxx for the supported slice
379 VAConfigAttribEncSliceStructure = 15,
381 * \brief Macroblock information. Read-only.
383 * This attribute determines whether the driver supports extra
384 * encoding information per-macroblock. e.g. QP.
386 * More specifically, for H.264 encoding, if the driver returns a non-zero
387 * value for this attribute, this means the application can create
388 * additional #VAEncMacroblockParameterBufferH264 buffers referenced
389 * through VAEncSliceParameterBufferH264::macroblock_info.
391 VAConfigAttribEncMacroblockInfo = 16,
393 * \brief Encoding quality range attribute. Read-only.
395 * This attribute conveys whether the driver supports different quality level settings
396 * for encoding. A value less than or equal to 1 means that the encoder only has a single
397 * quality setting, and a value greater than 1 represents the number of quality levels
398 * that can be configured. e.g. a value of 2 means there are two distinct quality levels.
400 VAConfigAttribEncQualityRange = 21,
402 VAConfigAttribTypeMax
403 } VAConfigAttribType;
406 * Configuration attributes
407 * If there is more than one value for an attribute, a default
408 * value will be assigned to the attribute if the client does not
409 * specify the attribute when creating a configuration
411 typedef struct _VAConfigAttrib {
412 VAConfigAttribType type;
413 unsigned int value; /* OR'd flags (bits) for this attribute */
416 /** attribute value for VAConfigAttribRTFormat */
417 #define VA_RT_FORMAT_YUV420 0x00000001
418 #define VA_RT_FORMAT_YUV422 0x00000002
419 #define VA_RT_FORMAT_YUV444 0x00000004
420 #define VA_RT_FORMAT_YUV411 0x00000008
421 #define VA_RT_FORMAT_YUV400 0x00000010
422 #define VA_RT_FORMAT_RGB16 0x00010000
423 #define VA_RT_FORMAT_RGB32 0x00020000
424 /* RGBP covers RGBP and BGRP fourcc */
425 #define VA_RT_FORMAT_RGBP 0x00100000
426 #define VA_RT_FORMAT_PROTECTED 0x80000000
428 /** @name Attribute values for VAConfigAttribRateControl */
430 /** \brief Driver does not support any form of rate control. */
431 #define VA_RC_NONE 0x00000001
432 /** \brief Constant bitrate. */
433 #define VA_RC_CBR 0x00000002
434 /** \brief Variable bitrate. */
435 #define VA_RC_VBR 0x00000004
436 /** \brief Video conference mode. */
437 #define VA_RC_VCM 0x00000008
438 /** \brief Constant QP. */
439 #define VA_RC_CQP 0x00000010
440 /** \brief Variable bitrate with peak rate higher than average bitrate. */
441 #define VA_RC_VBR_CONSTRAINED 0x00000020
444 /** @name Attribute values for VAConfigAttribEncPackedHeaders */
446 /** \brief Driver does not support any packed headers mode. */
447 #define VA_ENC_PACKED_HEADER_NONE 0x00000000
448 /** \brief Driver supports packed sequence headers. e.g. SPS for H.264. */
449 #define VA_ENC_PACKED_HEADER_SEQUENCE 0x00000001
450 /** \brief Driver supports packed picture headers. e.g. PPS for H.264. */
451 #define VA_ENC_PACKED_HEADER_PICTURE 0x00000002
452 /** \brief Driver supports packed slice headers. e.g. \c slice_header() for H.264. */
453 #define VA_ENC_PACKED_HEADER_SLICE 0x00000004
454 /** \brief Driver supports misc packed headers. e.g. SEI for H.264. */
455 #define VA_ENC_PACKED_HEADER_MISC 0x00000008
456 /** \brief Driver supports raw packed header, see VAEncPackedHeaderRawData */
457 #define VA_ENC_PACKED_HEADER_RAW_DATA 0x00000010
460 /** @name Attribute values for VAConfigAttribEncInterlaced */
462 /** \brief Driver does not support interlaced coding. */
463 #define VA_ENC_INTERLACED_NONE 0x00000000
464 /** \brief Driver supports interlaced frame coding. */
465 #define VA_ENC_INTERLACED_FRAME 0x00000001
466 /** \brief Driver supports interlaced field coding. */
467 #define VA_ENC_INTERLACED_FIELD 0x00000002
468 /** \brief Driver supports macroblock adaptive frame field coding. */
469 #define VA_ENC_INTERLACED_MBAFF 0x00000004
470 /** \brief Driver supports picture adaptive frame field coding. */
471 #define VA_ENC_INTERLACED_PAFF 0x00000008
474 /** @name Attribute values for VAConfigAttribEncSliceStructure */
476 /** \brief Driver supports an arbitrary number of rows per slice. */
477 #define VA_ENC_SLICE_STRUCTURE_ARBITRARY_ROWS 0x00000000
478 /** \brief Driver supports a power-of-two number of rows per slice. */
479 #define VA_ENC_SLICE_STRUCTURE_POWER_OF_TWO_ROWS 0x00000001
480 /** \brief Driver supports an arbitrary number of rows per slice. */
481 #define VA_ENC_SLICE_STRUCTURE_ARBITRARY_MACROBLOCKS 0x00000002
485 * if an attribute is not applicable for a given
486 * profile/entrypoint pair, then set the value to the following
488 #define VA_ATTRIB_NOT_SUPPORTED 0x80000000
490 /** Get maximum number of profiles supported by the implementation */
491 int vaMaxNumProfiles (
495 /** Get maximum number of entrypoints supported by the implementation */
496 int vaMaxNumEntrypoints (
500 /** Get maximum number of attributs supported by the implementation */
501 int vaMaxNumConfigAttributes (
506 * Query supported profiles
507 * The caller must provide a "profile_list" array that can hold at
508 * least vaMaxNumProfile() entries. The actual number of profiles
509 * returned in "profile_list" is returned in "num_profile".
511 VAStatus vaQueryConfigProfiles (
513 VAProfile *profile_list, /* out */
514 int *num_profiles /* out */
518 * Query supported entrypoints for a given profile
519 * The caller must provide an "entrypoint_list" array that can hold at
520 * least vaMaxNumEntrypoints() entries. The actual number of entrypoints
521 * returned in "entrypoint_list" is returned in "num_entrypoints".
523 VAStatus vaQueryConfigEntrypoints (
526 VAEntrypoint *entrypoint_list, /* out */
527 int *num_entrypoints /* out */
531 * Get attributes for a given profile/entrypoint pair
532 * The caller must provide an "attrib_list" with all attributes to be
533 * retrieved. Upon return, the attributes in "attrib_list" have been
534 * updated with their value. Unknown attributes or attributes that are
535 * not supported for the given profile/entrypoint pair will have their
536 * value set to VA_ATTRIB_NOT_SUPPORTED
538 VAStatus vaGetConfigAttributes (
541 VAEntrypoint entrypoint,
542 VAConfigAttrib *attrib_list, /* in/out */
546 /** Generic ID type, can be re-typed for specific implementation */
547 typedef unsigned int VAGenericID;
549 typedef VAGenericID VAConfigID;
552 * Create a configuration for the decode pipeline
553 * it passes in the attribute list that specifies the attributes it cares
554 * about, with the rest taking default values.
556 VAStatus vaCreateConfig (
559 VAEntrypoint entrypoint,
560 VAConfigAttrib *attrib_list,
562 VAConfigID *config_id /* out */
566 * Free resources associdated with a given config
568 VAStatus vaDestroyConfig (
574 * Query all attributes for a given configuration
575 * The profile of the configuration is returned in "profile"
576 * The entrypoint of the configuration is returned in "entrypoint"
577 * The caller must provide an "attrib_list" array that can hold at least
578 * vaMaxNumConfigAttributes() entries. The actual number of attributes
579 * returned in "attrib_list" is returned in "num_attribs"
581 VAStatus vaQueryConfigAttributes (
583 VAConfigID config_id,
584 VAProfile *profile, /* out */
585 VAEntrypoint *entrypoint, /* out */
586 VAConfigAttrib *attrib_list,/* out */
587 int *num_attribs /* out */
592 * Contexts and Surfaces
594 * Context represents a "virtual" video decode pipeline. Surfaces are render
595 * targets for a given context. The data in the surfaces are not accessible
596 * to the client and the internal data format of the surface is implementatin
599 * Surfaces will be bound to a context when the context is created. Once
600 * a surface is bound to a given context, it can not be used to create
601 * another context. The association is removed when the context is destroyed
603 * Both contexts and surfaces are identified by unique IDs and its
604 * implementation specific internals are kept opaque to the clients
607 typedef VAGenericID VAContextID;
609 typedef VAGenericID VASurfaceID;
611 #define VA_INVALID_ID 0xffffffff
612 #define VA_INVALID_SURFACE VA_INVALID_ID
614 /** \brief Generic value types. */
616 VAGenericValueTypeInteger = 1, /**< 32-bit signed integer. */
617 VAGenericValueTypeFloat, /**< 32-bit floating-point value. */
618 VAGenericValueTypePointer, /**< Generic pointer type */
619 VAGenericValueTypeFunc /**< Pointer to function */
620 } VAGenericValueType;
622 /** \brief Generic function type. */
623 typedef void (*VAGenericFunc)(void);
625 /** \brief Generic value. */
626 typedef struct _VAGenericValue {
627 /** \brief Value type. See #VAGenericValueType. */
628 VAGenericValueType type;
629 /** \brief Value holder. */
631 /** \brief 32-bit signed integer. */
633 /** \brief 32-bit float. */
635 /** \brief Generic pointer. */
637 /** \brief Pointer to function. */
642 /** @name Surface attribute flags */
644 /** \brief Surface attribute is not supported. */
645 #define VA_SURFACE_ATTRIB_NOT_SUPPORTED 0x00000000
646 /** \brief Surface attribute can be got through vaQuerySurfaceAttributes(). */
647 #define VA_SURFACE_ATTRIB_GETTABLE 0x00000001
648 /** \brief Surface attribute can be set through vaCreateSurfaces(). */
649 #define VA_SURFACE_ATTRIB_SETTABLE 0x00000002
652 /** \brief Surface attribute types. */
654 VASurfaceAttribNone = 0,
656 * \brief Pixel format (fourcc).
658 * The value is meaningful as input to vaQuerySurfaceAttributes().
659 * If zero, the driver returns the optimal pixel format for the
660 * specified config. Otherwise, if non-zero, the value represents
661 * a pixel format (FOURCC) that is kept as is on output, if the
662 * driver supports it. Otherwise, the driver sets the value to
663 * zero and drops the \c VA_SURFACE_ATTRIB_SETTABLE flag.
665 VASurfaceAttribPixelFormat,
666 /** \brief Minimal width in pixels (int, read-only). */
667 VASurfaceAttribMinWidth,
668 /** \brief Maximal width in pixels (int, read-only). */
669 VASurfaceAttribMaxWidth,
670 /** \brief Minimal height in pixels (int, read-only). */
671 VASurfaceAttribMinHeight,
672 /** \brief Maximal height in pixels (int, read-only). */
673 VASurfaceAttribMaxHeight,
674 /** \brief Surface memory type expressed in bit fields (int, read/write). */
675 VASurfaceAttribMemoryType,
676 /** \brief External buffer descriptor (pointer, write). */
677 VASurfaceAttribExternalBufferDescriptor,
678 /** \brief Surface usage hint, gives the driver a hint of intended usage
679 * to optimize allocation (e.g. tiling) (int, read/write). */
680 VASurfaceAttribUsageHint,
681 /** \brief Number of surface attributes. */
683 } VASurfaceAttribType;
685 /** \brief Surface attribute. */
686 typedef struct _VASurfaceAttrib {
688 VASurfaceAttribType type;
689 /** \brief Flags. See "Surface attribute flags". */
691 /** \brief Value. See "Surface attribute types" for the expected types. */
692 VAGenericValue value;
696 * @name VASurfaceAttribMemoryType values in bit fields.
697 * Bit 0:7 are reserved for generic types, Bit 31:28 are reserved for
698 * Linux DRM, Bit 23:20 are reserved for Android. DRM and Android specific
699 * types are defined in DRM and Android header files.
702 /** \brief VA memory type (default) is supported. */
703 #define VA_SURFACE_ATTRIB_MEM_TYPE_VA 0x00000001
704 /** \brief V4L2 buffer memory type is supported. */
705 #define VA_SURFACE_ATTRIB_MEM_TYPE_V4L2 0x00000002
706 /** \brief User pointer memory type is supported. */
707 #define VA_SURFACE_ATTRIB_MEM_TYPE_USER_PTR 0x00000004
711 * \brief VASurfaceAttribExternalBuffers structure for
712 * the VASurfaceAttribExternalBufferDescriptor attribute.
714 typedef struct _VASurfaceAttribExternalBuffers {
715 /** \brief pixel format in fourcc. */
716 unsigned int pixel_format;
717 /** \brief width in pixels. */
719 /** \brief height in pixels. */
721 /** \brief total size of the buffer in bytes. */
722 unsigned int data_size;
723 /** \brief number of planes for planar layout */
724 unsigned int num_planes;
725 /** \brief pitch for each plane in bytes */
726 unsigned int pitches[4];
727 /** \brief offset for each plane in bytes */
728 unsigned int offsets[4];
729 /** \brief buffer handles or user pointers */
730 unsigned long *buffers;
731 /** \brief number of elements in the "buffers" array */
732 unsigned int num_buffers;
733 /** \brief flags. See "Surface external buffer descriptor flags". */
735 /** \brief reserved for passing private data */
737 } VASurfaceAttribExternalBuffers;
739 /** @name VASurfaceAttribExternalBuffers flags */
741 /** \brief Enable memory tiling */
742 #define VA_SURFACE_EXTBUF_DESC_ENABLE_TILING 0x00000001
743 /** \brief Memory is cacheable */
744 #define VA_SURFACE_EXTBUF_DESC_CACHED 0x00000002
745 /** \brief Memory is non-cacheable */
746 #define VA_SURFACE_EXTBUF_DESC_UNCACHED 0x00000004
747 /** \brief Memory is write-combined */
748 #define VA_SURFACE_EXTBUF_DESC_WC 0x00000008
749 /** \brief Memory is protected */
750 #define VA_SURFACE_EXTBUF_DESC_PROTECTED 0x80000000
752 /** @name VASurfaceAttribUsageHint attribute usage hint flags */
754 /** \brief Surface usage not indicated. */
755 #define VA_SURFACE_ATTRIB_USAGE_HINT_GENERIC 0x00000000
756 /** \brief Surface used by video decoder. */
757 #define VA_SURFACE_ATTRIB_USAGE_HINT_DECODER 0x00000001
758 /** \brief Surface used by video encoder. */
759 #define VA_SURFACE_ATTRIB_USAGE_HINT_ENCODER 0x00000002
760 /** \brief Surface read by video post-processing. */
761 #define VA_SURFACE_ATTRIB_USAGE_HINT_VPP_READ 0x00000004
762 /** \brief Surface written by video post-processing. */
763 #define VA_SURFACE_ATTRIB_USAGE_HINT_VPP_WRITE 0x00000008
764 /** \brief Surface used for display. */
765 #define VA_SURFACE_ATTRIB_USAGE_HINT_DISPLAY 0x00000010
770 * \brief Queries surface attributes for the supplied config.
772 * Unlike vaGetSurfaceAttributes(), this function queries for all
773 * supported attributes for the supplied VA @config. In particular, if
774 * the underlying hardware supports the creation of VA surfaces in
775 * various formats, then this function will enumerate all pixel
776 * formats that are supported.
778 * The \c attrib_list array is allocated by the user and \c
779 * num_attribs shall be initialized to the number of allocated
780 * elements in that array. Upon successful return, the actual number
781 * of attributes will be overwritten into \c num_attribs. Otherwise,
782 * \c VA_STATUS_ERROR_MAX_NUM_EXCEEDED is returned and \c num_attribs
783 * is adjusted to the number of elements that would be returned if
784 * enough space was available.
786 * Note: it is perfectly valid to pass NULL to the \c attrib_list
787 * argument when vaQuerySurfaceAttributes() is used to determine the
788 * actual number of elements that need to be allocated.
790 * @param[in] dpy the VA display
791 * @param[in] config the config identifying a codec or a video
792 * processing pipeline
793 * @param[out] attrib_list the output array of #VASurfaceAttrib elements
794 * @param[in,out] num_attribs the number of elements allocated on
795 * input, the number of elements actually filled in output
798 vaQuerySurfaceAttributes(
801 VASurfaceAttrib *attrib_list,
802 unsigned int *num_attribs
806 * \brief Creates an array of surfaces
808 * Creates an array of surfaces. The optional list of attributes shall
809 * be constructed and validated through vaGetSurfaceAttributes() or
810 * constructed based based on what the underlying hardware could
811 * expose through vaQuerySurfaceAttributes().
813 * @param[in] dpy the VA display
814 * @param[in] format the desired surface format. See \c VA_RT_FORMAT_*
815 * @param[in] width the surface width
816 * @param[in] height the surface height
817 * @param[out] surfaces the array of newly created surfaces
818 * @param[in] num_surfaces the number of surfaces to create
819 * @param[in] attrib_list the list of (optional) attributes, or \c NULL
820 * @param[in] num_attribs the number of attributes supplied in
821 * \c attrib_list, or zero
829 VASurfaceID *surfaces,
830 unsigned int num_surfaces,
831 VASurfaceAttrib *attrib_list,
832 unsigned int num_attribs
836 * vaDestroySurfaces - Destroy resources associated with surfaces.
837 * Surfaces can only be destroyed after the context associated has been
840 * surfaces: array of surfaces to destroy
841 * num_surfaces: number of surfaces in the array to be destroyed.
843 VAStatus vaDestroySurfaces (
845 VASurfaceID *surfaces,
849 #define VA_PROGRESSIVE 0x1
851 * vaCreateContext - Create a context
853 * config_id: configuration for the context
854 * picture_width: coded picture width
855 * picture_height: coded picture height
856 * flag: any combination of the following:
857 * VA_PROGRESSIVE (only progressive frame pictures in the sequence when set)
858 * render_targets: render targets (surfaces) tied to the context
859 * num_render_targets: number of render targets in the above array
860 * context: created context id upon return
862 VAStatus vaCreateContext (
864 VAConfigID config_id,
868 VASurfaceID *render_targets,
869 int num_render_targets,
870 VAContextID *context /* out */
874 * vaDestroyContext - Destroy a context
876 * context: context to be destroyed
878 VAStatus vaDestroyContext (
885 * Buffers are used to pass various types of data from the
886 * client to the server. The server maintains a data store
887 * for each buffer created, and the client idenfies a buffer
888 * through a unique buffer id assigned by the server.
891 typedef VAGenericID VABufferID;
895 VAPictureParameterBufferType = 0,
896 VAIQMatrixBufferType = 1,
897 VABitPlaneBufferType = 2,
898 VASliceGroupMapBufferType = 3,
899 VASliceParameterBufferType = 4,
900 VASliceDataBufferType = 5,
901 VAMacroblockParameterBufferType = 6,
902 VAResidualDataBufferType = 7,
903 VADeblockingParameterBufferType = 8,
904 VAImageBufferType = 9,
905 VAProtectedSliceDataBufferType = 10,
906 VAQMatrixBufferType = 11,
907 VAHuffmanTableBufferType = 12,
908 VAProbabilityBufferType = 13,
910 /* Following are encode buffer types */
911 VAEncCodedBufferType = 21,
912 VAEncSequenceParameterBufferType = 22,
913 VAEncPictureParameterBufferType = 23,
914 VAEncSliceParameterBufferType = 24,
915 VAEncPackedHeaderParameterBufferType = 25,
916 VAEncPackedHeaderDataBufferType = 26,
917 VAEncMiscParameterBufferType = 27,
918 VAEncMacroblockParameterBufferType = 28,
919 VAEncMacroblockMapBufferType = 29,
920 /* Following are video processing buffer types */
922 * \brief Video processing pipeline parameter buffer.
924 * This buffer describes the video processing pipeline. See
925 * #VAProcPipelineParameterBuffer for details.
927 VAProcPipelineParameterBufferType = 41,
929 * \brief Video filter parameter buffer.
931 * This buffer describes the video filter parameters. All buffers
932 * inherit from #VAProcFilterParameterBufferBase, thus including
933 * a unique filter buffer type.
935 * The default buffer used by most filters is #VAProcFilterParameterBuffer.
936 * Filters requiring advanced parameters include, but are not limited to,
937 * deinterlacing (#VAProcFilterParameterBufferDeinterlacing),
938 * color balance (#VAProcFilterParameterBufferColorBalance), etc.
940 VAProcFilterParameterBufferType = 42,
946 VAEncMiscParameterTypeFrameRate = 0,
947 VAEncMiscParameterTypeRateControl = 1,
948 VAEncMiscParameterTypeMaxSliceSize = 2,
949 VAEncMiscParameterTypeAIR = 3,
950 /** \brief Buffer type used to express a maximum frame size (in bits). */
951 VAEncMiscParameterTypeMaxFrameSize = 4,
952 /** \brief Buffer type used for HRD parameters. */
953 VAEncMiscParameterTypeHRD = 5,
954 VAEncMiscParameterTypeQualityLevel = 6,
955 } VAEncMiscParameterType;
957 /** \brief Packed header type. */
959 /** \brief Packed sequence header. */
960 VAEncPackedHeaderSequence = 1,
961 /** \brief Packed picture header. */
962 VAEncPackedHeaderPicture = 2,
963 /** \brief Packed slice header. */
964 VAEncPackedHeaderSlice = 3,
966 * \brief Packed raw header.
968 * Packed raw data header can be used by the client to insert a header
969 * into the bitstream data buffer at the point it is passed, the driver
970 * will handle the raw packed header based on "has_emulation_bytes" field
971 * in the packed header parameter structure.
973 VAEncPackedHeaderRawData = 4,
974 /** \brief Misc packed header. See codec-specific definitions. */
975 VAEncPackedHeaderMiscMask = 0x80000000,
976 } VAEncPackedHeaderType;
978 /** \brief Packed header parameter. */
979 typedef struct _VAEncPackedHeaderParameterBuffer {
980 /** Type of the packed header buffer. See #VAEncPackedHeaderType. */
982 /** \brief Size of the #VAEncPackedHeaderDataBuffer in bits. */
983 unsigned int bit_length;
984 /** \brief Flag: buffer contains start code emulation prevention bytes? */
985 unsigned char has_emulation_bytes;
986 } VAEncPackedHeaderParameterBuffer;
989 * For application, e.g. set a new bitrate
991 * VAEncMiscParameterBuffer *misc_param;
992 * VAEncMiscParameterRateControl *misc_rate_ctrl;
994 * vaCreateBuffer(dpy, context, VAEncMiscParameterBufferType,
995 * sizeof(VAEncMiscParameterBuffer) + sizeof(VAEncMiscParameterRateControl),
998 * vaMapBuffer(dpy,buf_id,(void **)&misc_param);
999 * misc_param->type = VAEncMiscParameterTypeRateControl;
1000 * misc_rate_ctrl= (VAEncMiscParameterRateControl *)misc_param->data;
1001 * misc_rate_ctrl->bits_per_second = 6400000;
1002 * vaUnmapBuffer(dpy, buf_id);
1003 * vaRenderPicture(dpy, context, &buf_id, 1);
1005 typedef struct _VAEncMiscParameterBuffer
1007 VAEncMiscParameterType type;
1008 unsigned int data[0];
1009 } VAEncMiscParameterBuffer;
1012 /** \brief Rate control parameters */
1013 typedef struct _VAEncMiscParameterRateControl
1015 /* this is the maximum bit-rate to be constrained by the rate control implementation */
1016 unsigned int bits_per_second;
1017 /* this is the bit-rate the rate control is targeting, as a percentage of the maximum
1018 * bit-rate for example if target_percentage is 95 then the rate control will target
1019 * a bit-rate that is 95% of the maximum bit-rate
1021 unsigned int target_percentage;
1022 /* windows size in milliseconds. For example if this is set to 500,
1023 * then the rate control will guarantee the target bit-rate over a 500 ms window
1025 unsigned int window_size;
1026 /* initial QP at I frames */
1027 unsigned int initial_qp;
1028 unsigned int min_qp;
1029 unsigned int basic_unit_size;
1034 unsigned int reset : 1;
1035 unsigned int disable_frame_skip : 1; /* Disable frame skip in rate control mode */
1036 unsigned int disable_bit_stuffing : 1; /* Disable bit stuffing in rate control mode */
1040 } VAEncMiscParameterRateControl;
1042 typedef struct _VAEncMiscParameterFrameRate
1044 unsigned int framerate;
1045 } VAEncMiscParameterFrameRate;
1048 * Allow a maximum slice size to be specified (in bits).
1049 * The encoder will attempt to make sure that individual slices do not exceed this size
1050 * Or to signal applicate if the slice size exceed this size, see "status" of VACodedBufferSegment
1052 typedef struct _VAEncMiscParameterMaxSliceSize
1054 unsigned int max_slice_size;
1055 } VAEncMiscParameterMaxSliceSize;
1057 typedef struct _VAEncMiscParameterAIR
1059 unsigned int air_num_mbs;
1060 unsigned int air_threshold;
1061 unsigned int air_auto; /* if set to 1 then hardware auto-tune the AIR threshold */
1062 } VAEncMiscParameterAIR;
1064 typedef struct _VAEncMiscParameterHRD
1066 unsigned int initial_buffer_fullness; /* in bits */
1067 unsigned int buffer_size; /* in bits */
1068 } VAEncMiscParameterHRD;
1071 * \brief Defines a maximum frame size (in bits).
1073 * This misc parameter buffer defines the maximum size of a frame (in
1074 * bits). The encoder will try to make sure that each frame does not
1075 * exceed this size. Otherwise, if the frame size exceeds this size,
1076 * the \c status flag of #VACodedBufferSegment will contain
1077 * #VA_CODED_BUF_STATUS_FRAME_SIZE_OVERFLOW.
1079 typedef struct _VAEncMiscParameterBufferMaxFrameSize {
1080 /** \brief Type. Shall be set to #VAEncMiscParameterTypeMaxFrameSize. */
1081 VAEncMiscParameterType type;
1082 /** \brief Maximum size of a frame (in bits). */
1083 unsigned int max_frame_size;
1084 } VAEncMiscParameterBufferMaxFrameSize;
1087 * \brief Encoding quality level.
1089 * The encoding quality could be set through this structure, if the implementation
1090 * supports multiple quality levels. The quality level set through this structure is
1091 * persistent over the entire coded sequence, or until a new structure is being sent.
1092 * The quality level range can be queried through the VAConfigAttribEncQualityRange
1093 * attribute. A lower value means higher quality, and a value of 1 represents the highest
1094 * quality. The quality level setting is used as a trade-off between quality and speed/power
1095 * consumption, with higher quality corresponds to lower speed and higher power consumption.
1097 typedef struct _VAEncMiscParameterBufferQualityLevel {
1098 /** \brief Encoding quality level setting. When set to 0, default quality
1101 unsigned int quality_level;
1102 } VAEncMiscParameterBufferQualityLevel;
1105 * There will be cases where the bitstream buffer will not have enough room to hold
1106 * the data for the entire slice, and the following flags will be used in the slice
1107 * parameter to signal to the server for the possible cases.
1108 * If a slice parameter buffer and slice data buffer pair is sent to the server with
1109 * the slice data partially in the slice data buffer (BEGIN and MIDDLE cases below),
1110 * then a slice parameter and data buffer needs to be sent again to complete this slice.
1112 #define VA_SLICE_DATA_FLAG_ALL 0x00 /* whole slice is in the buffer */
1113 #define VA_SLICE_DATA_FLAG_BEGIN 0x01 /* The beginning of the slice is in the buffer but the end if not */
1114 #define VA_SLICE_DATA_FLAG_MIDDLE 0x02 /* Neither beginning nor end of the slice is in the buffer */
1115 #define VA_SLICE_DATA_FLAG_END 0x04 /* end of the slice is in the buffer */
1117 /* Codec-independent Slice Parameter Buffer base */
1118 typedef struct _VASliceParameterBufferBase
1120 unsigned int slice_data_size; /* number of bytes in the slice data buffer for this slice */
1121 unsigned int slice_data_offset; /* the offset to the first byte of slice data */
1122 unsigned int slice_data_flag; /* see VA_SLICE_DATA_FLAG_XXX definitions */
1123 } VASliceParameterBufferBase;
1126 /****************************
1127 * JEPG data structure
1128 ***************************/
1129 typedef struct _VAQMatrixBufferJPEG
1131 int load_lum_quantiser_matrix;
1132 int load_chroma_quantiser_matrix;
1133 unsigned char lum_quantiser_matrix[64];
1134 unsigned char chroma_quantiser_matrix[64];
1135 } VAQMatrixBufferJPEG;
1137 typedef struct _VAEncPictureParameterBufferJPEG
1139 VASurfaceID reconstructed_picture;
1140 unsigned short picture_width;
1141 unsigned short picture_height;
1142 VABufferID coded_buf;
1143 } VAEncPictureParameterBufferJPEG;
1145 #include <va/va_dec_jpeg.h>
1147 /****************************
1148 * MPEG-2 data structures
1149 ****************************/
1151 /* MPEG-2 Picture Parameter Buffer */
1153 * For each frame or field, and before any slice data, a single
1154 * picture parameter buffer must be send.
1156 typedef struct _VAPictureParameterBufferMPEG2
1158 unsigned short horizontal_size;
1159 unsigned short vertical_size;
1160 VASurfaceID forward_reference_picture;
1161 VASurfaceID backward_reference_picture;
1162 /* meanings of the following fields are the same as in the standard */
1163 int picture_coding_type;
1164 int f_code; /* pack all four fcode into this */
1167 unsigned int intra_dc_precision : 2;
1168 unsigned int picture_structure : 2;
1169 unsigned int top_field_first : 1;
1170 unsigned int frame_pred_frame_dct : 1;
1171 unsigned int concealment_motion_vectors : 1;
1172 unsigned int q_scale_type : 1;
1173 unsigned int intra_vlc_format : 1;
1174 unsigned int alternate_scan : 1;
1175 unsigned int repeat_first_field : 1;
1176 unsigned int progressive_frame : 1;
1177 unsigned int is_first_field : 1; /* indicate whether the current field
1178 * is the first field for field picture
1182 } picture_coding_extension;
1183 } VAPictureParameterBufferMPEG2;
1185 /** MPEG-2 Inverse Quantization Matrix Buffer */
1186 typedef struct _VAIQMatrixBufferMPEG2
1188 /** \brief Same as the MPEG-2 bitstream syntax element. */
1189 int load_intra_quantiser_matrix;
1190 /** \brief Same as the MPEG-2 bitstream syntax element. */
1191 int load_non_intra_quantiser_matrix;
1192 /** \brief Same as the MPEG-2 bitstream syntax element. */
1193 int load_chroma_intra_quantiser_matrix;
1194 /** \brief Same as the MPEG-2 bitstream syntax element. */
1195 int load_chroma_non_intra_quantiser_matrix;
1196 /** \brief Luminance intra matrix, in zig-zag scan order. */
1197 unsigned char intra_quantiser_matrix[64];
1198 /** \brief Luminance non-intra matrix, in zig-zag scan order. */
1199 unsigned char non_intra_quantiser_matrix[64];
1200 /** \brief Chroma intra matrix, in zig-zag scan order. */
1201 unsigned char chroma_intra_quantiser_matrix[64];
1202 /** \brief Chroma non-intra matrix, in zig-zag scan order. */
1203 unsigned char chroma_non_intra_quantiser_matrix[64];
1204 } VAIQMatrixBufferMPEG2;
1206 /** MPEG-2 Slice Parameter Buffer */
1207 typedef struct _VASliceParameterBufferMPEG2
1209 unsigned int slice_data_size;/* number of bytes in the slice data buffer for this slice */
1210 unsigned int slice_data_offset;/* the offset to the first byte of slice data */
1211 unsigned int slice_data_flag; /* see VA_SLICE_DATA_FLAG_XXX defintions */
1212 unsigned int macroblock_offset;/* the offset to the first bit of MB from the first byte of slice data */
1213 unsigned int slice_horizontal_position;
1214 unsigned int slice_vertical_position;
1215 int quantiser_scale_code;
1216 int intra_slice_flag;
1217 } VASliceParameterBufferMPEG2;
1219 /** MPEG-2 Macroblock Parameter Buffer */
1220 typedef struct _VAMacroblockParameterBufferMPEG2
1222 unsigned short macroblock_address;
1224 * macroblock_address (in raster scan order)
1226 * bottom-right: picture-height-in-mb*picture-width-in-mb - 1
1228 unsigned char macroblock_type; /* see definition below */
1231 unsigned int frame_motion_type : 2;
1232 unsigned int field_motion_type : 2;
1233 unsigned int dct_type : 1;
1237 unsigned char motion_vertical_field_select;
1239 * motion_vertical_field_select:
1240 * see section 6.3.17.2 in the spec
1241 * only the lower 4 bits are used
1242 * bit 0: first vector forward
1243 * bit 1: first vector backward
1244 * bit 2: second vector forward
1245 * bit 3: second vector backward
1247 short PMV[2][2][2]; /* see Table 7-7 in the spec */
1248 unsigned short coded_block_pattern;
1250 * The bitplanes for coded_block_pattern are described
1251 * in Figure 6.10-12 in the spec
1254 /* Number of skipped macroblocks after this macroblock */
1255 unsigned short num_skipped_macroblocks;
1256 } VAMacroblockParameterBufferMPEG2;
1259 * OR'd flags for macroblock_type (section 6.3.17.1 in the spec)
1261 #define VA_MB_TYPE_MOTION_FORWARD 0x02
1262 #define VA_MB_TYPE_MOTION_BACKWARD 0x04
1263 #define VA_MB_TYPE_MOTION_PATTERN 0x08
1264 #define VA_MB_TYPE_MOTION_INTRA 0x10
1267 * MPEG-2 Residual Data Buffer
1268 * For each macroblock, there wil be 64 shorts (16-bit) in the
1269 * residual data buffer
1272 /****************************
1273 * MPEG-4 Part 2 data structures
1274 ****************************/
1276 /* MPEG-4 Picture Parameter Buffer */
1278 * For each frame or field, and before any slice data, a single
1279 * picture parameter buffer must be send.
1281 typedef struct _VAPictureParameterBufferMPEG4
1283 unsigned short vop_width;
1284 unsigned short vop_height;
1285 VASurfaceID forward_reference_picture;
1286 VASurfaceID backward_reference_picture;
1289 unsigned int short_video_header : 1;
1290 unsigned int chroma_format : 2;
1291 unsigned int interlaced : 1;
1292 unsigned int obmc_disable : 1;
1293 unsigned int sprite_enable : 2;
1294 unsigned int sprite_warping_accuracy : 2;
1295 unsigned int quant_type : 1;
1296 unsigned int quarter_sample : 1;
1297 unsigned int data_partitioned : 1;
1298 unsigned int reversible_vlc : 1;
1299 unsigned int resync_marker_disable : 1;
1303 unsigned char no_of_sprite_warping_points;
1304 short sprite_trajectory_du[3];
1305 short sprite_trajectory_dv[3];
1306 unsigned char quant_precision;
1309 unsigned int vop_coding_type : 2;
1310 unsigned int backward_reference_vop_coding_type : 2;
1311 unsigned int vop_rounding_type : 1;
1312 unsigned int intra_dc_vlc_thr : 3;
1313 unsigned int top_field_first : 1;
1314 unsigned int alternate_vertical_scan_flag : 1;
1318 unsigned char vop_fcode_forward;
1319 unsigned char vop_fcode_backward;
1320 unsigned short vop_time_increment_resolution;
1321 /* short header related */
1322 unsigned char num_gobs_in_vop;
1323 unsigned char num_macroblocks_in_gob;
1324 /* for direct mode prediction */
1327 } VAPictureParameterBufferMPEG4;
1329 /** MPEG-4 Inverse Quantization Matrix Buffer */
1330 typedef struct _VAIQMatrixBufferMPEG4
1332 /** Same as the MPEG-4:2 bitstream syntax element. */
1333 int load_intra_quant_mat;
1334 /** Same as the MPEG-4:2 bitstream syntax element. */
1335 int load_non_intra_quant_mat;
1336 /** The matrix for intra blocks, in zig-zag scan order. */
1337 unsigned char intra_quant_mat[64];
1338 /** The matrix for non-intra blocks, in zig-zag scan order. */
1339 unsigned char non_intra_quant_mat[64];
1340 } VAIQMatrixBufferMPEG4;
1342 /** MPEG-4 Slice Parameter Buffer */
1343 typedef struct _VASliceParameterBufferMPEG4
1345 unsigned int slice_data_size;/* number of bytes in the slice data buffer for this slice */
1346 unsigned int slice_data_offset;/* the offset to the first byte of slice data */
1347 unsigned int slice_data_flag; /* see VA_SLICE_DATA_FLAG_XXX defintions */
1348 unsigned int macroblock_offset;/* the offset to the first bit of MB from the first byte of slice data */
1349 unsigned int macroblock_number;
1351 } VASliceParameterBufferMPEG4;
1354 VC-1 data structures
1357 typedef enum /* see 7.1.1.32 */
1360 VAMvMode1MvHalfPel = 1,
1361 VAMvMode1MvHalfPelBilinear = 2,
1362 VAMvModeMixedMv = 3,
1363 VAMvModeIntensityCompensation = 4
1366 /** VC-1 Picture Parameter Buffer */
1368 * For each picture, and before any slice data, a picture parameter
1369 * buffer must be send. Multiple picture parameter buffers may be
1370 * sent for a single picture. In that case picture parameters will
1371 * apply to all slice data that follow it until a new picture
1372 * parameter buffer is sent.
1375 * pic_quantizer_type should be set to the applicable quantizer
1376 * type as defined by QUANTIZER (J.1.19) and either
1377 * PQUANTIZER (7.1.1.8) or PQINDEX (7.1.1.6)
1379 typedef struct _VAPictureParameterBufferVC1
1381 VASurfaceID forward_reference_picture;
1382 VASurfaceID backward_reference_picture;
1383 /* if out-of-loop post-processing is done on the render
1384 target, then we need to keep the in-loop decoded
1385 picture as a reference picture */
1386 VASurfaceID inloop_decoded_picture;
1388 /* sequence layer for AP or meta data for SP and MP */
1391 unsigned int pulldown : 1; /* SEQUENCE_LAYER::PULLDOWN */
1392 unsigned int interlace : 1; /* SEQUENCE_LAYER::INTERLACE */
1393 unsigned int tfcntrflag : 1; /* SEQUENCE_LAYER::TFCNTRFLAG */
1394 unsigned int finterpflag : 1; /* SEQUENCE_LAYER::FINTERPFLAG */
1395 unsigned int psf : 1; /* SEQUENCE_LAYER::PSF */
1396 unsigned int multires : 1; /* METADATA::MULTIRES */
1397 unsigned int overlap : 1; /* METADATA::OVERLAP */
1398 unsigned int syncmarker : 1; /* METADATA::SYNCMARKER */
1399 unsigned int rangered : 1; /* METADATA::RANGERED */
1400 unsigned int max_b_frames : 3; /* METADATA::MAXBFRAMES */
1401 unsigned int profile : 2; /* SEQUENCE_LAYER::PROFILE or The MSB of METADATA::PROFILE */
1406 unsigned short coded_width; /* ENTRY_POINT_LAYER::CODED_WIDTH */
1407 unsigned short coded_height; /* ENTRY_POINT_LAYER::CODED_HEIGHT */
1410 unsigned int broken_link : 1; /* ENTRY_POINT_LAYER::BROKEN_LINK */
1411 unsigned int closed_entry : 1; /* ENTRY_POINT_LAYER::CLOSED_ENTRY */
1412 unsigned int panscan_flag : 1; /* ENTRY_POINT_LAYER::PANSCAN_FLAG */
1413 unsigned int loopfilter : 1; /* ENTRY_POINT_LAYER::LOOPFILTER */
1416 } entrypoint_fields;
1417 unsigned char conditional_overlap_flag; /* ENTRY_POINT_LAYER::CONDOVER */
1418 unsigned char fast_uvmc_flag; /* ENTRY_POINT_LAYER::FASTUVMC */
1421 unsigned int luma_flag : 1; /* ENTRY_POINT_LAYER::RANGE_MAPY_FLAG */
1422 unsigned int luma : 3; /* ENTRY_POINT_LAYER::RANGE_MAPY */
1423 unsigned int chroma_flag : 1; /* ENTRY_POINT_LAYER::RANGE_MAPUV_FLAG */
1424 unsigned int chroma : 3; /* ENTRY_POINT_LAYER::RANGE_MAPUV */
1427 } range_mapping_fields;
1429 unsigned char b_picture_fraction; /* PICTURE_LAYER::BFRACTION */
1430 unsigned char cbp_table; /* PICTURE_LAYER::CBPTAB/ICBPTAB */
1431 unsigned char mb_mode_table; /* PICTURE_LAYER::MBMODETAB */
1432 unsigned char range_reduction_frame;/* PICTURE_LAYER::RANGEREDFRM */
1433 unsigned char rounding_control; /* PICTURE_LAYER::RNDCTRL */
1434 unsigned char post_processing; /* PICTURE_LAYER::POSTPROC */
1435 unsigned char picture_resolution_index; /* PICTURE_LAYER::RESPIC */
1436 unsigned char luma_scale; /* PICTURE_LAYER::LUMSCALE */
1437 unsigned char luma_shift; /* PICTURE_LAYER::LUMSHIFT */
1440 unsigned int picture_type : 3; /* PICTURE_LAYER::PTYPE */
1441 unsigned int frame_coding_mode : 3; /* PICTURE_LAYER::FCM */
1442 unsigned int top_field_first : 1; /* PICTURE_LAYER::TFF */
1443 unsigned int is_first_field : 1; /* set to 1 if it is the first field */
1444 unsigned int intensity_compensation : 1; /* PICTURE_LAYER::INTCOMP */
1450 unsigned int mv_type_mb : 1; /* PICTURE::MVTYPEMB */
1451 unsigned int direct_mb : 1; /* PICTURE::DIRECTMB */
1452 unsigned int skip_mb : 1; /* PICTURE::SKIPMB */
1453 unsigned int field_tx : 1; /* PICTURE::FIELDTX */
1454 unsigned int forward_mb : 1; /* PICTURE::FORWARDMB */
1455 unsigned int ac_pred : 1; /* PICTURE::ACPRED */
1456 unsigned int overflags : 1; /* PICTURE::OVERFLAGS */
1462 unsigned int bp_mv_type_mb : 1; /* PICTURE::MVTYPEMB */
1463 unsigned int bp_direct_mb : 1; /* PICTURE::DIRECTMB */
1464 unsigned int bp_skip_mb : 1; /* PICTURE::SKIPMB */
1465 unsigned int bp_field_tx : 1; /* PICTURE::FIELDTX */
1466 unsigned int bp_forward_mb : 1; /* PICTURE::FORWARDMB */
1467 unsigned int bp_ac_pred : 1; /* PICTURE::ACPRED */
1468 unsigned int bp_overflags : 1; /* PICTURE::OVERFLAGS */
1471 } bitplane_present; /* signal what bitplane is being passed via the bitplane buffer */
1474 unsigned int reference_distance_flag : 1;/* PICTURE_LAYER::REFDIST_FLAG */
1475 unsigned int reference_distance : 5;/* PICTURE_LAYER::REFDIST */
1476 unsigned int num_reference_pictures: 1;/* PICTURE_LAYER::NUMREF */
1477 unsigned int reference_field_pic_indicator : 1;/* PICTURE_LAYER::REFFIELD */
1483 unsigned int mv_mode : 3; /* PICTURE_LAYER::MVMODE */
1484 unsigned int mv_mode2 : 3; /* PICTURE_LAYER::MVMODE2 */
1485 unsigned int mv_table : 3; /* PICTURE_LAYER::MVTAB/IMVTAB */
1486 unsigned int two_mv_block_pattern_table: 2; /* PICTURE_LAYER::2MVBPTAB */
1487 unsigned int four_mv_switch : 1; /* PICTURE_LAYER::4MVSWITCH */
1488 unsigned int four_mv_block_pattern_table : 2; /* PICTURE_LAYER::4MVBPTAB */
1489 unsigned int extended_mv_flag : 1; /* ENTRY_POINT_LAYER::EXTENDED_MV */
1490 unsigned int extended_mv_range : 2; /* PICTURE_LAYER::MVRANGE */
1491 unsigned int extended_dmv_flag : 1; /* ENTRY_POINT_LAYER::EXTENDED_DMV */
1492 unsigned int extended_dmv_range : 2; /* PICTURE_LAYER::DMVRANGE */
1498 unsigned int dquant : 2; /* ENTRY_POINT_LAYER::DQUANT */
1499 unsigned int quantizer : 2; /* ENTRY_POINT_LAYER::QUANTIZER */
1500 unsigned int half_qp : 1; /* PICTURE_LAYER::HALFQP */
1501 unsigned int pic_quantizer_scale : 5;/* PICTURE_LAYER::PQUANT */
1502 unsigned int pic_quantizer_type : 1;/* PICTURE_LAYER::PQUANTIZER */
1503 unsigned int dq_frame : 1; /* VOPDQUANT::DQUANTFRM */
1504 unsigned int dq_profile : 2; /* VOPDQUANT::DQPROFILE */
1505 unsigned int dq_sb_edge : 2; /* VOPDQUANT::DQSBEDGE */
1506 unsigned int dq_db_edge : 2; /* VOPDQUANT::DQDBEDGE */
1507 unsigned int dq_binary_level : 1; /* VOPDQUANT::DQBILEVEL */
1508 unsigned int alt_pic_quantizer : 5;/* VOPDQUANT::ALTPQUANT */
1511 } pic_quantizer_fields;
1514 unsigned int variable_sized_transform_flag : 1;/* ENTRY_POINT_LAYER::VSTRANSFORM */
1515 unsigned int mb_level_transform_type_flag : 1;/* PICTURE_LAYER::TTMBF */
1516 unsigned int frame_level_transform_type : 2;/* PICTURE_LAYER::TTFRM */
1517 unsigned int transform_ac_codingset_idx1 : 2;/* PICTURE_LAYER::TRANSACFRM */
1518 unsigned int transform_ac_codingset_idx2 : 2;/* PICTURE_LAYER::TRANSACFRM2 */
1519 unsigned int intra_transform_dc_table : 1;/* PICTURE_LAYER::TRANSDCTAB */
1523 } VAPictureParameterBufferVC1;
1525 /** VC-1 Bitplane Buffer
1526 There will be at most three bitplanes coded in any picture header. To send
1527 the bitplane data more efficiently, each byte is divided in two nibbles, with
1528 each nibble carrying three bitplanes for one macroblock. The following table
1529 shows the bitplane data arrangement within each nibble based on the picture
1532 Picture Type Bit3 Bit2 Bit1 Bit0
1533 I or BI OVERFLAGS ACPRED FIELDTX
1534 P MYTYPEMB SKIPMB DIRECTMB
1535 B FORWARDMB SKIPMB DIRECTMB
1537 Within each byte, the lower nibble is for the first MB and the upper nibble is
1538 for the second MB. E.g. the lower nibble of the first byte in the bitplane
1539 buffer is for Macroblock #1 and the upper nibble of the first byte is for
1540 Macroblock #2 in the first row.
1543 /* VC-1 Slice Parameter Buffer */
1544 typedef struct _VASliceParameterBufferVC1
1546 unsigned int slice_data_size;/* number of bytes in the slice data buffer for this slice */
1547 unsigned int slice_data_offset;/* the offset to the first byte of slice data */
1548 unsigned int slice_data_flag; /* see VA_SLICE_DATA_FLAG_XXX defintions */
1549 unsigned int macroblock_offset;/* the offset to the first bit of MB from the first byte of slice data */
1550 unsigned int slice_vertical_position;
1551 } VASliceParameterBufferVC1;
1553 /* VC-1 Slice Data Buffer */
1555 This is simplely a buffer containing raw bit-stream bytes
1558 /****************************
1559 * H.264/AVC data structures
1560 ****************************/
1562 typedef struct _VAPictureH264
1564 VASurfaceID picture_id;
1565 unsigned int frame_idx;
1567 signed int TopFieldOrderCnt;
1568 signed int BottomFieldOrderCnt;
1570 /* flags in VAPictureH264 could be OR of the following */
1571 #define VA_PICTURE_H264_INVALID 0x00000001
1572 #define VA_PICTURE_H264_TOP_FIELD 0x00000002
1573 #define VA_PICTURE_H264_BOTTOM_FIELD 0x00000004
1574 #define VA_PICTURE_H264_SHORT_TERM_REFERENCE 0x00000008
1575 #define VA_PICTURE_H264_LONG_TERM_REFERENCE 0x00000010
1577 /** H.264 Picture Parameter Buffer */
1579 * For each picture, and before any slice data, a single
1580 * picture parameter buffer must be send.
1582 typedef struct _VAPictureParameterBufferH264
1584 VAPictureH264 CurrPic;
1585 VAPictureH264 ReferenceFrames[16]; /* in DPB */
1586 unsigned short picture_width_in_mbs_minus1;
1587 unsigned short picture_height_in_mbs_minus1;
1588 unsigned char bit_depth_luma_minus8;
1589 unsigned char bit_depth_chroma_minus8;
1590 unsigned char num_ref_frames;
1593 unsigned int chroma_format_idc : 2;
1594 unsigned int residual_colour_transform_flag : 1;
1595 unsigned int gaps_in_frame_num_value_allowed_flag : 1;
1596 unsigned int frame_mbs_only_flag : 1;
1597 unsigned int mb_adaptive_frame_field_flag : 1;
1598 unsigned int direct_8x8_inference_flag : 1;
1599 unsigned int MinLumaBiPredSize8x8 : 1; /* see A.3.3.2 */
1600 unsigned int log2_max_frame_num_minus4 : 4;
1601 unsigned int pic_order_cnt_type : 2;
1602 unsigned int log2_max_pic_order_cnt_lsb_minus4 : 4;
1603 unsigned int delta_pic_order_always_zero_flag : 1;
1607 unsigned char num_slice_groups_minus1;
1608 unsigned char slice_group_map_type;
1609 unsigned short slice_group_change_rate_minus1;
1610 signed char pic_init_qp_minus26;
1611 signed char pic_init_qs_minus26;
1612 signed char chroma_qp_index_offset;
1613 signed char second_chroma_qp_index_offset;
1616 unsigned int entropy_coding_mode_flag : 1;
1617 unsigned int weighted_pred_flag : 1;
1618 unsigned int weighted_bipred_idc : 2;
1619 unsigned int transform_8x8_mode_flag : 1;
1620 unsigned int field_pic_flag : 1;
1621 unsigned int constrained_intra_pred_flag : 1;
1622 unsigned int pic_order_present_flag : 1;
1623 unsigned int deblocking_filter_control_present_flag : 1;
1624 unsigned int redundant_pic_cnt_present_flag : 1;
1625 unsigned int reference_pic_flag : 1; /* nal_ref_idc != 0 */
1629 unsigned short frame_num;
1630 } VAPictureParameterBufferH264;
1632 /** H.264 Inverse Quantization Matrix Buffer */
1633 typedef struct _VAIQMatrixBufferH264
1635 /** \brief 4x4 scaling list, in raster scan order. */
1636 unsigned char ScalingList4x4[6][16];
1637 /** \brief 8x8 scaling list, in raster scan order. */
1638 unsigned char ScalingList8x8[2][64];
1639 } VAIQMatrixBufferH264;
1642 * H.264 Slice Group Map Buffer
1643 * When VAPictureParameterBufferH264::num_slice_group_minus1 is not equal to 0,
1644 * A slice group map buffer should be sent for each picture if required. The buffer
1645 * is sent only when there is a change in the mapping values.
1646 * The slice group map buffer map "map units" to slice groups as specified in
1647 * section 8.2.2 of the H.264 spec. The buffer will contain one byte for each macroblock
1648 * in raster scan order
1651 /** H.264 Slice Parameter Buffer */
1652 typedef struct _VASliceParameterBufferH264
1654 unsigned int slice_data_size;/* number of bytes in the slice data buffer for this slice */
1655 /** \brief Byte offset to the NAL Header Unit for this slice. */
1656 unsigned int slice_data_offset;
1657 unsigned int slice_data_flag; /* see VA_SLICE_DATA_FLAG_XXX defintions */
1659 * \brief Bit offset from NAL Header Unit to the begining of slice_data().
1661 * This bit offset is relative to and includes the NAL unit byte
1662 * and represents the number of bits parsed in the slice_header()
1663 * after the removal of any emulation prevention bytes in
1664 * there. However, the slice data buffer passed to the hardware is
1665 * the original bitstream, thus including any emulation prevention
1668 unsigned short slice_data_bit_offset;
1669 unsigned short first_mb_in_slice;
1670 unsigned char slice_type;
1671 unsigned char direct_spatial_mv_pred_flag;
1672 unsigned char num_ref_idx_l0_active_minus1;
1673 unsigned char num_ref_idx_l1_active_minus1;
1674 unsigned char cabac_init_idc;
1675 char slice_qp_delta;
1676 unsigned char disable_deblocking_filter_idc;
1677 char slice_alpha_c0_offset_div2;
1678 char slice_beta_offset_div2;
1679 VAPictureH264 RefPicList0[32]; /* See 8.2.4.2 */
1680 VAPictureH264 RefPicList1[32]; /* See 8.2.4.2 */
1681 unsigned char luma_log2_weight_denom;
1682 unsigned char chroma_log2_weight_denom;
1683 unsigned char luma_weight_l0_flag;
1684 short luma_weight_l0[32];
1685 short luma_offset_l0[32];
1686 unsigned char chroma_weight_l0_flag;
1687 short chroma_weight_l0[32][2];
1688 short chroma_offset_l0[32][2];
1689 unsigned char luma_weight_l1_flag;
1690 short luma_weight_l1[32];
1691 short luma_offset_l1[32];
1692 unsigned char chroma_weight_l1_flag;
1693 short chroma_weight_l1[32][2];
1694 short chroma_offset_l1[32][2];
1695 } VASliceParameterBufferH264;
1697 /****************************
1698 * Common encode data structures
1699 ****************************/
1702 VAEncPictureTypeIntra = 0,
1703 VAEncPictureTypePredictive = 1,
1704 VAEncPictureTypeBidirectional = 2,
1707 /* Encode Slice Parameter Buffer */
1708 typedef struct _VAEncSliceParameterBuffer
1710 unsigned int start_row_number; /* starting MB row number for this slice */
1711 unsigned int slice_height; /* slice height measured in MB */
1714 unsigned int is_intra : 1;
1715 unsigned int disable_deblocking_filter_idc : 2;
1716 unsigned int uses_long_term_ref :1;
1717 unsigned int is_long_term_ref :1;
1721 } VAEncSliceParameterBuffer;
1724 /****************************
1725 * H.263 specific encode data structures
1726 ****************************/
1728 typedef struct _VAEncSequenceParameterBufferH263
1730 unsigned int intra_period;
1731 unsigned int bits_per_second;
1732 unsigned int frame_rate;
1733 unsigned int initial_qp;
1734 unsigned int min_qp;
1735 } VAEncSequenceParameterBufferH263;
1737 typedef struct _VAEncPictureParameterBufferH263
1739 VASurfaceID reference_picture;
1740 VASurfaceID reconstructed_picture;
1741 VABufferID coded_buf;
1742 unsigned short picture_width;
1743 unsigned short picture_height;
1744 VAEncPictureType picture_type;
1745 } VAEncPictureParameterBufferH263;
1747 /****************************
1748 * MPEG-4 specific encode data structures
1749 ****************************/
1751 typedef struct _VAEncSequenceParameterBufferMPEG4
1753 unsigned char profile_and_level_indication;
1754 unsigned int intra_period;
1755 unsigned int video_object_layer_width;
1756 unsigned int video_object_layer_height;
1757 unsigned int vop_time_increment_resolution;
1758 unsigned int fixed_vop_rate;
1759 unsigned int fixed_vop_time_increment;
1760 unsigned int bits_per_second;
1761 unsigned int frame_rate;
1762 unsigned int initial_qp;
1763 unsigned int min_qp;
1764 } VAEncSequenceParameterBufferMPEG4;
1766 typedef struct _VAEncPictureParameterBufferMPEG4
1768 VASurfaceID reference_picture;
1769 VASurfaceID reconstructed_picture;
1770 VABufferID coded_buf;
1771 unsigned short picture_width;
1772 unsigned short picture_height;
1773 unsigned int modulo_time_base; /* number of 1s */
1774 unsigned int vop_time_increment;
1775 VAEncPictureType picture_type;
1776 } VAEncPictureParameterBufferMPEG4;
1780 /** Buffer functions */
1783 * Creates a buffer for "num_elements" elements of "size" bytes and
1784 * initalize with "data".
1785 * if "data" is null, then the contents of the buffer data store
1787 * Basically there are two ways to get buffer data to the server side. One is
1788 * to call vaCreateBuffer() with a non-null "data", which results the data being
1789 * copied to the data store on the server side. A different method that
1790 * eliminates this copy is to pass null as "data" when calling vaCreateBuffer(),
1791 * and then use vaMapBuffer() to map the data store from the server side to the
1792 * client address space for access.
1793 * Note: image buffers are created by the library, not the client. Please see
1794 * vaCreateImage on how image buffers are managed.
1796 VAStatus vaCreateBuffer (
1798 VAContextID context,
1799 VABufferType type, /* in */
1800 unsigned int size, /* in */
1801 unsigned int num_elements, /* in */
1802 void *data, /* in */
1803 VABufferID *buf_id /* out */
1807 * Convey to the server how many valid elements are in the buffer.
1808 * e.g. if multiple slice parameters are being held in a single buffer,
1809 * this will communicate to the server the number of slice parameters
1810 * that are valid in the buffer.
1812 VAStatus vaBufferSetNumElements (
1814 VABufferID buf_id, /* in */
1815 unsigned int num_elements /* in */
1820 * device independent data structure for codedbuffer
1824 * FICTURE_AVE_QP(bit7-0): The average Qp value used during this frame
1825 * LARGE_SLICE(bit8):At least one slice in the current frame was large
1826 * enough for the encoder to attempt to limit its size.
1827 * SLICE_OVERFLOW(bit9): At least one slice in the current frame has
1828 * exceeded the maximum slice size specified.
1829 * BITRATE_OVERFLOW(bit10): The peak bitrate was exceeded for this frame.
1830 * BITRATE_HIGH(bit11): The frame size got within the safety margin of the maximum size (VCM only)
1831 * AIR_MB_OVER_THRESHOLD: the number of MBs adapted to Intra MB
1833 #define VA_CODED_BUF_STATUS_PICTURE_AVE_QP_MASK 0xff
1834 #define VA_CODED_BUF_STATUS_LARGE_SLICE_MASK 0x100
1835 #define VA_CODED_BUF_STATUS_SLICE_OVERFLOW_MASK 0x200
1836 #define VA_CODED_BUF_STATUS_BITRATE_OVERFLOW 0x400
1837 #define VA_CODED_BUF_STATUS_BITRATE_HIGH 0x800
1839 * \brief The frame has exceeded the maximum requested size.
1841 * This flag indicates that the encoded frame size exceeds the value
1842 * specified through a misc parameter buffer of type
1843 * #VAEncMiscParameterTypeMaxFrameSize.
1845 #define VA_CODED_BUF_STATUS_FRAME_SIZE_OVERFLOW 0x1000
1846 #define VA_CODED_BUF_STATUS_AIR_MB_OVER_THRESHOLD 0xff0000
1849 * \brief The coded buffer segment contains a single NAL unit.
1851 * This flag indicates that the coded buffer segment contains a
1852 * single NAL unit. This flag might be useful to the user for
1853 * processing the coded buffer.
1855 #define VA_CODED_BUF_STATUS_SINGLE_NALU 0x10000000
1858 * \brief Coded buffer segment.
1860 * #VACodedBufferSegment is an element of a linked list describing
1861 * some information on the coded buffer. The coded buffer segment
1862 * could contain either a single NAL unit, or more than one NAL unit.
1863 * It is recommended (but not required) to return a single NAL unit
1864 * in a coded buffer segment, and the implementation should set the
1865 * VA_CODED_BUF_STATUS_SINGLE_NALU status flag if that is the case.
1867 typedef struct _VACodedBufferSegment {
1869 * \brief Size of the data buffer in this segment (in bytes).
1872 /** \brief Bit offset into the data buffer where the video data starts. */
1873 unsigned int bit_offset;
1874 /** \brief Status set by the driver. See \c VA_CODED_BUF_STATUS_*. */
1875 unsigned int status;
1876 /** \brief Reserved for future use. */
1877 unsigned int reserved;
1878 /** \brief Pointer to the start of the data buffer. */
1881 * \brief Pointer to the next #VACodedBufferSegment element,
1882 * or \c NULL if there is none.
1885 } VACodedBufferSegment;
1888 * Map data store of the buffer into the client's address space
1889 * vaCreateBuffer() needs to be called with "data" set to NULL before
1890 * calling vaMapBuffer()
1892 * if buffer type is VAEncCodedBufferType, pbuf points to link-list of
1893 * VACodedBufferSegment, and the list is terminated if "next" is NULL
1895 VAStatus vaMapBuffer (
1897 VABufferID buf_id, /* in */
1898 void **pbuf /* out */
1902 * After client making changes to a mapped data store, it needs to
1903 * "Unmap" it to let the server know that the data is ready to be
1904 * consumed by the server
1906 VAStatus vaUnmapBuffer (
1908 VABufferID buf_id /* in */
1912 * After this call, the buffer is deleted and this buffer_id is no longer valid
1913 * Only call this if the buffer is not going to be passed to vaRenderBuffer
1915 VAStatus vaDestroyBuffer (
1917 VABufferID buffer_id
1920 /** \brief VA buffer information */
1922 /** \brief Buffer handle */
1924 /** \brief Buffer type (See \ref VABufferType). */
1927 * \brief Buffer memory type (See \ref VASurfaceAttribMemoryType).
1929 * On input to vaAcquireBufferHandle(), this field can serve as a hint
1930 * to specify the set of memory types the caller is interested in.
1931 * On successful return from vaAcquireBufferHandle(), the field is
1932 * updated with the best matching memory type.
1935 /** \brief Size of the underlying buffer. */
1940 * \brief Acquires buffer handle for external API usage
1942 * Locks the VA buffer object \ref buf_id for external API usage like
1943 * EGL or OpenCL (OCL). This function is a synchronization point. This
1944 * means that any pending operation is guaranteed to be completed
1945 * prior to returning from the function.
1947 * If the referenced VA buffer object is the backing store of a VA
1948 * surface, then this function acts as if vaSyncSurface() on the
1949 * parent surface was called first.
1951 * The \ref VABufferInfo argument shall be zero'ed on input. On
1952 * successful output, the data structure is filled in with all the
1953 * necessary buffer level implementation details like handle, type,
1954 * memory type and memory size.
1956 * Note: the external API implementation, or the application, can
1957 * express the memory types it is interested in by filling in the \ref
1958 * mem_type field accordingly. On successful output, the memory type
1959 * that fits best the request and that was used is updated in the \ref
1960 * VABufferInfo data structure. If none of the supplied memory types
1961 * is supported, then a \ref VA_STATUS_ERROR_UNSUPPORTED_MEMORY_TYPE
1962 * error is returned.
1964 * The \ref VABufferInfo data is valid until vaReleaseBufferHandle()
1965 * is called. Besides, no additional operation is allowed on any of
1966 * the buffer parent object until vaReleaseBufferHandle() is called.
1967 * e.g. decoding into a VA surface backed with the supplied VA buffer
1968 * object \ref buf_id would fail with a \ref VA_STATUS_ERROR_SURFACE_BUSY
1972 * - \ref VA_STATUS_ERROR_UNIMPLEMENTED: the VA driver implementation
1973 * does not support this interface
1974 * - \ref VA_STATUS_ERROR_INVALID_DISPLAY: an invalid display was supplied
1975 * - \ref VA_STATUS_ERROR_INVALID_BUFFER: an invalid buffer was supplied
1976 * - \ref VA_STATUS_ERROR_UNSUPPORTED_BUFFERTYPE: the implementation
1977 * does not support exporting buffers of the specified type
1978 * - \ref VA_STATUS_ERROR_UNSUPPORTED_MEMORY_TYPE: none of the requested
1979 * memory types in \ref VABufferInfo.mem_type was supported
1981 * @param[in] dpy the VA display
1982 * @param[in] buf_id the VA buffer
1983 * @param[in,out] buf_info the associated VA buffer information
1984 * @return VA_STATUS_SUCCESS if successful
1987 vaAcquireBufferHandle(VADisplay dpy, VABufferID buf_id, VABufferInfo *buf_info);
1990 * \brief Releases buffer after usage from external API
1992 * Unlocks the VA buffer object \ref buf_id from external API usage like
1993 * EGL or OpenCL (OCL). This function is a synchronization point. This
1994 * means that any pending operation is guaranteed to be completed
1995 * prior to returning from the function.
1997 * The \ref VABufferInfo argument shall point to the original data
1998 * structure that was obtained from vaAcquireBufferHandle(), unaltered.
1999 * This is necessary so that the VA driver implementation could
2000 * deallocate any resources that were needed.
2002 * In any case, returning from this function invalidates any contents
2003 * in \ref VABufferInfo. i.e. the underlyng buffer handle is no longer
2004 * valid. Therefore, VA driver implementations are free to reset this
2005 * data structure to safe defaults.
2008 * - \ref VA_STATUS_ERROR_UNIMPLEMENTED: the VA driver implementation
2009 * does not support this interface
2010 * - \ref VA_STATUS_ERROR_INVALID_DISPLAY: an invalid display was supplied
2011 * - \ref VA_STATUS_ERROR_INVALID_BUFFER: an invalid buffer was supplied
2012 * - \ref VA_STATUS_ERROR_UNSUPPORTED_BUFFERTYPE: the implementation
2013 * does not support exporting buffers of the specified type
2015 * @param[in] dpy the VA display
2016 * @param[in] buf_id the VA buffer
2017 * @return VA_STATUS_SUCCESS if successful
2020 vaReleaseBufferHandle(VADisplay dpy, VABufferID buf_id);
2023 Render (Decode) Pictures
2025 A picture represents either a frame or a field.
2027 The Begin/Render/End sequence sends the decode buffers to the server
2031 * Get ready to decode a picture to a target surface
2033 VAStatus vaBeginPicture (
2035 VAContextID context,
2036 VASurfaceID render_target
2040 * Send decode buffers to the server.
2041 * Buffers are automatically destroyed afterwards
2043 VAStatus vaRenderPicture (
2045 VAContextID context,
2046 VABufferID *buffers,
2051 * Make the end of rendering for a picture.
2052 * The server should start processing all pending operations for this
2053 * surface. This call is non-blocking. The client can start another
2054 * Begin/Render/End sequence on a different render target.
2056 VAStatus vaEndPicture (
2068 * This function blocks until all pending operations on the render target
2069 * have been completed. Upon return it is safe to use the render target for a
2070 * different picture.
2072 VAStatus vaSyncSurface (
2074 VASurfaceID render_target
2079 VASurfaceRendering = 1, /* Rendering in progress */
2080 VASurfaceDisplaying = 2, /* Displaying in progress (not safe to render into it) */
2081 /* this status is useful if surface is used as the source */
2083 VASurfaceReady = 4, /* not being rendered or displayed */
2084 VASurfaceSkipped = 8 /* Indicate a skipped frame during encode */
2088 * Find out any pending ops on the render target
2090 VAStatus vaQuerySurfaceStatus (
2092 VASurfaceID render_target,
2093 VASurfaceStatus *status /* out */
2098 VADecodeSliceMissing = 0,
2099 VADecodeMBError = 1,
2100 } VADecodeErrorType;
2103 * Client calls vaQuerySurfaceError with VA_STATUS_ERROR_DECODING_ERROR, server side returns
2104 * an array of structure VASurfaceDecodeMBErrors, and the array is terminated by setting status=-1
2106 typedef struct _VASurfaceDecodeMBErrors
2108 int status; /* 1 if hardware has returned detailed info below, -1 means this record is invalid */
2109 unsigned int start_mb; /* start mb address with errors */
2110 unsigned int end_mb; /* end mb address with errors */
2111 VADecodeErrorType decode_error_type;
2112 } VASurfaceDecodeMBErrors;
2115 * After the application gets VA_STATUS_ERROR_DECODING_ERROR after calling vaSyncSurface(),
2116 * it can call vaQuerySurfaceError to find out further details on the particular error.
2117 * VA_STATUS_ERROR_DECODING_ERROR should be passed in as "error_status",
2118 * upon the return, error_info will point to an array of _VASurfaceDecodeMBErrors structure,
2119 * which is allocated and filled by libVA with detailed information on the missing or error macroblocks.
2120 * The array is terminated if "status==-1" is detected.
2122 VAStatus vaQuerySurfaceError(
2124 VASurfaceID surface,
2125 VAStatus error_status,
2130 * Images and Subpictures
2131 * VAImage is used to either get the surface data to client memory, or
2132 * to copy image data in client memory to a surface.
2133 * Both images, subpictures and surfaces follow the same 2D coordinate system where origin
2134 * is at the upper left corner with positive X to the right and positive Y down
2136 #define VA_FOURCC(ch0, ch1, ch2, ch3) \
2137 ((unsigned long)(unsigned char) (ch0) | ((unsigned long)(unsigned char) (ch1) << 8) | \
2138 ((unsigned long)(unsigned char) (ch2) << 16) | ((unsigned long)(unsigned char) (ch3) << 24 ))
2141 * Pre-defined fourcc codes
2143 #define VA_FOURCC_NV12 0x3231564E
2144 #define VA_FOURCC_AI44 0x34344149
2145 #define VA_FOURCC_RGBA 0x41424752
2146 #define VA_FOURCC_RGBX 0x58424752
2147 #define VA_FOURCC_BGRA 0x41524742
2148 #define VA_FOURCC_BGRX 0x58524742
2149 #define VA_FOURCC_ARGB 0x42475241
2150 #define VA_FOURCC_XRGB 0x42475258
2151 #define VA_FOURCC_ABGR 0x52474241
2152 #define VA_FOURCC_XBGR 0x52474258
2153 #define VA_FOURCC_UYVY 0x59565955
2154 #define VA_FOURCC_YUY2 0x32595559
2155 #define VA_FOURCC_AYUV 0x56555941
2156 #define VA_FOURCC_NV11 0x3131564e
2157 #define VA_FOURCC_YV12 0x32315659
2158 #define VA_FOURCC_P208 0x38303250
2159 #define VA_FOURCC_IYUV 0x56555949
2160 #define VA_FOURCC_YV24 0x34325659
2161 #define VA_FOURCC_YV32 0x32335659
2162 #define VA_FOURCC_Y800 0x30303859
2163 #define VA_FOURCC_IMC3 0x33434D49
2164 #define VA_FOURCC_411P 0x50313134
2165 #define VA_FOURCC_422H 0x48323234
2166 #define VA_FOURCC_422V 0x56323234
2167 #define VA_FOURCC_444P 0x50343434
2168 #define VA_FOURCC_RGBP 0x50424752
2169 #define VA_FOURCC_BGRP 0x50524742
2170 #define VA_FOURCC_411R 0x52313134 /* rotated 411P */
2173 #define VA_LSB_FIRST 1
2174 #define VA_MSB_FIRST 2
2176 typedef struct _VAImageFormat
2178 unsigned int fourcc;
2179 unsigned int byte_order; /* VA_LSB_FIRST, VA_MSB_FIRST */
2180 unsigned int bits_per_pixel;
2181 /* for RGB formats */
2182 unsigned int depth; /* significant bits per pixel */
2183 unsigned int red_mask;
2184 unsigned int green_mask;
2185 unsigned int blue_mask;
2186 unsigned int alpha_mask;
2189 typedef VAGenericID VAImageID;
2191 typedef struct _VAImage
2193 VAImageID image_id; /* uniquely identify this image */
2194 VAImageFormat format;
2195 VABufferID buf; /* image data buffer */
2197 * Image data will be stored in a buffer of type VAImageBufferType to facilitate
2198 * data store on the server side for optimal performance. The buffer will be
2199 * created by the CreateImage function, and proper storage allocated based on the image
2200 * size and format. This buffer is managed by the library implementation, and
2201 * accessed by the client through the buffer Map/Unmap functions.
2203 unsigned short width;
2204 unsigned short height;
2205 unsigned int data_size;
2206 unsigned int num_planes; /* can not be greater than 3 */
2208 * An array indicating the scanline pitch in bytes for each plane.
2209 * Each plane may have a different pitch. Maximum 3 planes for planar formats
2211 unsigned int pitches[3];
2213 * An array indicating the byte offset from the beginning of the image data
2214 * to the start of each plane.
2216 unsigned int offsets[3];
2218 /* The following fields are only needed for paletted formats */
2219 int num_palette_entries; /* set to zero for non-palette images */
2221 * Each component is one byte and entry_bytes indicates the number of components in
2222 * each entry (eg. 3 for YUV palette entries). set to zero for non-palette images
2226 * An array of ascii characters describing the order of the components within the bytes.
2227 * Only entry_bytes characters of the string are used.
2229 char component_order[4];
2232 /** Get maximum number of image formats supported by the implementation */
2233 int vaMaxNumImageFormats (
2238 * Query supported image formats
2239 * The caller must provide a "format_list" array that can hold at
2240 * least vaMaxNumImageFormats() entries. The actual number of formats
2241 * returned in "format_list" is returned in "num_formats".
2243 VAStatus vaQueryImageFormats (
2245 VAImageFormat *format_list, /* out */
2246 int *num_formats /* out */
2250 * Create a VAImage structure
2251 * The width and height fields returned in the VAImage structure may get
2252 * enlarged for some YUV formats. Upon return from this function,
2253 * image->buf has been created and proper storage allocated by the library.
2254 * The client can access the image through the Map/Unmap calls.
2256 VAStatus vaCreateImage (
2258 VAImageFormat *format,
2261 VAImage *image /* out */
2265 * Should call DestroyImage before destroying the surface it is bound to
2267 VAStatus vaDestroyImage (
2272 VAStatus vaSetImagePalette (
2276 * pointer to an array holding the palette data. The size of the array is
2277 * num_palette_entries * entry_bytes in size. The order of the components
2278 * in the palette is described by the component_order in VAImage struct
2280 unsigned char *palette
2284 * Retrive surface data into a VAImage
2285 * Image must be in a format supported by the implementation
2287 VAStatus vaGetImage (
2289 VASurfaceID surface,
2290 int x, /* coordinates of the upper left source pixel */
2292 unsigned int width, /* width and height of the region */
2293 unsigned int height,
2298 * Copy data from a VAImage to a surface
2299 * Image must be in a format supported by the implementation
2300 * Returns a VA_STATUS_ERROR_SURFACE_BUSY if the surface
2301 * shouldn't be rendered into when this is called
2303 VAStatus vaPutImage (
2305 VASurfaceID surface,
2309 unsigned int src_width,
2310 unsigned int src_height,
2313 unsigned int dest_width,
2314 unsigned int dest_height
2318 * Derive an VAImage from an existing surface.
2319 * This interface will derive a VAImage and corresponding image buffer from
2320 * an existing VA Surface. The image buffer can then be mapped/unmapped for
2321 * direct CPU access. This operation is only possible on implementations with
2322 * direct rendering capabilities and internal surface formats that can be
2323 * represented with a VAImage. When the operation is not possible this interface
2324 * will return VA_STATUS_ERROR_OPERATION_FAILED. Clients should then fall back
2325 * to using vaCreateImage + vaPutImage to accomplish the same task in an
2328 * Implementations should only return success when the resulting image buffer
2329 * would be useable with vaMap/Unmap.
2331 * When directly accessing a surface special care must be taken to insure
2332 * proper synchronization with the graphics hardware. Clients should call
2333 * vaQuerySurfaceStatus to insure that a surface is not the target of concurrent
2334 * rendering or currently being displayed by an overlay.
2336 * Additionally nothing about the contents of a surface should be assumed
2337 * following a vaPutSurface. Implementations are free to modify the surface for
2338 * scaling or subpicture blending within a call to vaPutImage.
2340 * Calls to vaPutImage or vaGetImage using the same surface from which the image
2341 * has been derived will return VA_STATUS_ERROR_SURFACE_BUSY. vaPutImage or
2342 * vaGetImage with other surfaces is supported.
2344 * An image created with vaDeriveImage should be freed with vaDestroyImage. The
2345 * image and image buffer structures will be destroyed; however, the underlying
2346 * surface will remain unchanged until freed with vaDestroySurfaces.
2348 VAStatus vaDeriveImage (
2350 VASurfaceID surface,
2351 VAImage *image /* out */
2356 * Subpicture is a special type of image that can be blended
2357 * with a surface during vaPutSurface(). Subpicture can be used to render
2358 * DVD sub-titles or closed captioning text etc.
2361 typedef VAGenericID VASubpictureID;
2363 /** Get maximum number of subpicture formats supported by the implementation */
2364 int vaMaxNumSubpictureFormats (
2368 /** flags for subpictures */
2369 #define VA_SUBPICTURE_CHROMA_KEYING 0x0001
2370 #define VA_SUBPICTURE_GLOBAL_ALPHA 0x0002
2371 #define VA_SUBPICTURE_DESTINATION_IS_SCREEN_COORD 0x0004
2373 * Query supported subpicture formats
2374 * The caller must provide a "format_list" array that can hold at
2375 * least vaMaxNumSubpictureFormats() entries. The flags arrary holds the flag
2376 * for each format to indicate additional capabilities for that format. The actual
2377 * number of formats returned in "format_list" is returned in "num_formats".
2378 * flags: returned value to indicate addtional capabilities
2379 * VA_SUBPICTURE_CHROMA_KEYING - supports chroma-keying
2380 * VA_SUBPICTURE_GLOBAL_ALPHA - supports global alpha
2381 * VA_SUBPICTURE_DESTINATION_IS_SCREEN_COORD - supports unscaled screen relative subpictures for On Screen Display
2384 VAStatus vaQuerySubpictureFormats (
2386 VAImageFormat *format_list, /* out */
2387 unsigned int *flags, /* out */
2388 unsigned int *num_formats /* out */
2392 * Subpictures are created with an image associated.
2394 VAStatus vaCreateSubpicture (
2397 VASubpictureID *subpicture /* out */
2401 * Destroy the subpicture before destroying the image it is assocated to
2403 VAStatus vaDestroySubpicture (
2405 VASubpictureID subpicture
2409 * Bind an image to the subpicture. This image will now be associated with
2410 * the subpicture instead of the one at creation.
2412 VAStatus vaSetSubpictureImage (
2414 VASubpictureID subpicture,
2419 * If chromakey is enabled, then the area where the source value falls within
2420 * the chromakey [min, max] range is transparent
2421 * The chromakey component format is the following:
2422 * For RGB: [0:7] Red [8:15] Blue [16:23] Green
2423 * For YUV: [0:7] V [8:15] U [16:23] Y
2424 * The chromakey mask can be used to mask out certain components for chromakey
2427 VAStatus vaSetSubpictureChromakey (
2429 VASubpictureID subpicture,
2430 unsigned int chromakey_min,
2431 unsigned int chromakey_max,
2432 unsigned int chromakey_mask
2436 * Global alpha value is between 0 and 1. A value of 1 means fully opaque and
2437 * a value of 0 means fully transparent. If per-pixel alpha is also specified then
2438 * the overall alpha is per-pixel alpha multiplied by the global alpha
2440 VAStatus vaSetSubpictureGlobalAlpha (
2442 VASubpictureID subpicture,
2447 * vaAssociateSubpicture associates the subpicture with target_surfaces.
2448 * It defines the region mapping between the subpicture and the target
2449 * surfaces through source and destination rectangles (with the same width and height).
2450 * Both will be displayed at the next call to vaPutSurface. Additional
2451 * associations before the call to vaPutSurface simply overrides the association.
2453 VAStatus vaAssociateSubpicture (
2455 VASubpictureID subpicture,
2456 VASurfaceID *target_surfaces,
2458 short src_x, /* upper left offset in subpicture */
2460 unsigned short src_width,
2461 unsigned short src_height,
2462 short dest_x, /* upper left offset in surface */
2464 unsigned short dest_width,
2465 unsigned short dest_height,
2467 * whether to enable chroma-keying, global-alpha, or screen relative mode
2468 * see VA_SUBPICTURE_XXX values
2474 * vaDeassociateSubpicture removes the association of the subpicture with target_surfaces.
2476 VAStatus vaDeassociateSubpicture (
2478 VASubpictureID subpicture,
2479 VASurfaceID *target_surfaces,
2483 typedef struct _VARectangle
2487 unsigned short width;
2488 unsigned short height;
2492 * Display attributes
2493 * Display attributes are used to control things such as contrast, hue, saturation,
2494 * brightness etc. in the rendering process. The application can query what
2495 * attributes are supported by the driver, and then set the appropriate attributes
2496 * before calling vaPutSurface()
2498 /* PowerVR IEP Lite attributes */
2501 VADISPLAYATTRIB_BLE_OFF = 0x00,
2502 VADISPLAYATTRIB_BLE_LOW,
2503 VADISPLAYATTRIB_BLE_MEDIUM,
2504 VADISPLAYATTRIB_BLE_HIGH,
2505 VADISPLAYATTRIB_BLE_NONE,
2506 } VADisplayAttribBLEMode;
2508 /** attribute value for VADisplayAttribRotation */
2509 #define VA_ROTATION_NONE 0x00000000
2510 #define VA_ROTATION_90 0x00000001
2511 #define VA_ROTATION_180 0x00000002
2512 #define VA_ROTATION_270 0x00000003
2514 /** attribute value for VADisplayAttribOutOfLoopDeblock */
2515 #define VA_OOL_DEBLOCKING_FALSE 0x00000000
2516 #define VA_OOL_DEBLOCKING_TRUE 0x00000001
2519 #define VA_RENDER_MODE_UNDEFINED 0
2520 #define VA_RENDER_MODE_LOCAL_OVERLAY 1
2521 #define VA_RENDER_MODE_LOCAL_GPU 2
2522 #define VA_RENDER_MODE_EXTERNAL_OVERLAY 4
2523 #define VA_RENDER_MODE_EXTERNAL_GPU 8
2525 /** Render device */
2526 #define VA_RENDER_DEVICE_UNDEFINED 0
2527 #define VA_RENDER_DEVICE_LOCAL 1
2528 #define VA_RENDER_DEVICE_EXTERNAL 2
2530 /** Currently defined display attribute types */
2533 VADisplayAttribBrightness = 0,
2534 VADisplayAttribContrast = 1,
2535 VADisplayAttribHue = 2,
2536 VADisplayAttribSaturation = 3,
2537 /* client can specifiy a background color for the target window
2538 * the new feature of video conference,
2539 * the uncovered area of the surface is filled by this color
2540 * also it will blend with the decoded video color
2542 VADisplayAttribBackgroundColor = 4,
2544 * this is a gettable only attribute. For some implementations that use the
2545 * hardware overlay, after PutSurface is called, the surface can not be
2546 * re-used until after the subsequent PutSurface call. If this is the case
2547 * then the value for this attribute will be set to 1 so that the client
2548 * will not attempt to re-use the surface right after returning from a call
2551 * Don't use it, use flag VASurfaceDisplaying of vaQuerySurfaceStatus since
2552 * driver may use overlay or GPU alternatively
2554 VADisplayAttribDirectSurface = 5,
2555 VADisplayAttribRotation = 6,
2556 VADisplayAttribOutofLoopDeblock = 7,
2558 /* PowerVR IEP Lite specific attributes */
2559 VADisplayAttribBLEBlackMode = 8,
2560 VADisplayAttribBLEWhiteMode = 9,
2561 VADisplayAttribBlueStretch = 10,
2562 VADisplayAttribSkinColorCorrection = 11,
2564 * For type VADisplayAttribCSCMatrix, "value" field is a pointer to the color
2565 * conversion matrix. Each element in the matrix is float-point
2567 VADisplayAttribCSCMatrix = 12,
2568 /* specify the constant color used to blend with video surface
2569 * Cd = Cv*Cc*Ac + Cb *(1 - Ac) C means the constant RGB
2570 * d: the final color to overwrite into the frame buffer
2571 * v: decoded video after color conversion,
2572 * c: video color specified by VADisplayAttribBlendColor
2573 * b: background color of the drawable
2575 VADisplayAttribBlendColor = 13,
2577 * Indicate driver to skip painting color key or not.
2578 * only applicable if the render is overlay
2580 VADisplayAttribOverlayAutoPaintColorKey = 14,
2582 * customized overlay color key, the format is RGB888
2583 * [23:16] = Red, [15:08] = Green, [07:00] = Blue.
2585 VADisplayAttribOverlayColorKey = 15,
2587 * The hint for the implementation of vaPutSurface
2588 * normally, the driver could use an overlay or GPU to render the surface on the screen
2589 * this flag provides APP the flexibity to switch the render dynamically
2591 VADisplayAttribRenderMode = 16,
2593 * specify if vaPutSurface needs to render into specified monitors
2594 * one example is that one external monitor (e.g. HDMI) is enabled,
2595 * but the window manager is not aware of it, and there is no associated drawable
2597 VADisplayAttribRenderDevice = 17,
2599 * specify vaPutSurface render area if there is no drawable on the monitor
2601 VADisplayAttribRenderRect = 18,
2602 } VADisplayAttribType;
2604 /* flags for VADisplayAttribute */
2605 #define VA_DISPLAY_ATTRIB_NOT_SUPPORTED 0x0000
2606 #define VA_DISPLAY_ATTRIB_GETTABLE 0x0001
2607 #define VA_DISPLAY_ATTRIB_SETTABLE 0x0002
2609 typedef struct _VADisplayAttribute
2611 VADisplayAttribType type;
2614 int value; /* used by the set/get attribute functions */
2615 /* flags can be VA_DISPLAY_ATTRIB_GETTABLE or VA_DISPLAY_ATTRIB_SETTABLE or OR'd together */
2617 } VADisplayAttribute;
2619 /** Get maximum number of display attributs supported by the implementation */
2620 int vaMaxNumDisplayAttributes (
2625 * Query display attributes
2626 * The caller must provide a "attr_list" array that can hold at
2627 * least vaMaxNumDisplayAttributes() entries. The actual number of attributes
2628 * returned in "attr_list" is returned in "num_attributes".
2630 VAStatus vaQueryDisplayAttributes (
2632 VADisplayAttribute *attr_list, /* out */
2633 int *num_attributes /* out */
2637 * Get display attributes
2638 * This function returns the current attribute values in "attr_list".
2639 * Only attributes returned with VA_DISPLAY_ATTRIB_GETTABLE set in the "flags" field
2640 * from vaQueryDisplayAttributes() can have their values retrieved.
2642 VAStatus vaGetDisplayAttributes (
2644 VADisplayAttribute *attr_list, /* in/out */
2649 * Set display attributes
2650 * Only attributes returned with VA_DISPLAY_ATTRIB_SETTABLE set in the "flags" field
2651 * from vaQueryDisplayAttributes() can be set. If the attribute is not settable or
2652 * the value is out of range, the function returns VA_STATUS_ERROR_ATTR_NOT_SUPPORTED
2654 VAStatus vaSetDisplayAttributes (
2656 VADisplayAttribute *attr_list,