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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".
81 #include <va/va_version.h>
88 * \mainpage Video Acceleration (VA) API
90 * \section intro Introduction
92 * The main motivation for VA-API (Video Acceleration API) is to
93 * enable hardware accelerated video decode and encode at various
94 * entry-points (VLD, IDCT, Motion Compensation etc.) for the
95 * prevailing coding standards today (MPEG-2, MPEG-4 ASP/H.263, MPEG-4
96 * AVC/H.264, VC-1/VMW3, and JPEG).
98 * VA-API is split into several modules:
100 * - \ref api_enc_core
101 * - \ref api_enc_h264
106 * \defgroup api_core Core API
114 The VA API is intended to provide an interface between a video decode/encode/display
115 application (client) and a hardware accelerator (server), to off-load
116 video decode/encode/display operations from the host to the hardware accelerator at various
119 The basic operation steps are:
121 - Negotiate a mutually acceptable configuration with the server to lock
122 down profile, entrypoints, and other attributes that will not change on
123 a frame-by-frame basis.
124 - Create a decode context which represents a "virtualized" hardware decode
126 - Get and fill decode buffers with picture level, slice level and macroblock
127 level data (depending on entrypoints)
128 - Pass the decode buffers to the server to decode the current frame
130 Initialization & Configuration Management
132 - Find out supported profiles
133 - Find out entrypoints for a given profile
134 - Find out configuration attributes for a given profile/entrypoint pair
135 - Create a configuration for use by the decoder
139 typedef void* VADisplay; /* window system dependent */
141 typedef int VAStatus; /* Return status type from functions */
142 /* Values for the return status */
143 #define VA_STATUS_SUCCESS 0x00000000
144 #define VA_STATUS_ERROR_OPERATION_FAILED 0x00000001
145 #define VA_STATUS_ERROR_ALLOCATION_FAILED 0x00000002
146 #define VA_STATUS_ERROR_INVALID_DISPLAY 0x00000003
147 #define VA_STATUS_ERROR_INVALID_CONFIG 0x00000004
148 #define VA_STATUS_ERROR_INVALID_CONTEXT 0x00000005
149 #define VA_STATUS_ERROR_INVALID_SURFACE 0x00000006
150 #define VA_STATUS_ERROR_INVALID_BUFFER 0x00000007
151 #define VA_STATUS_ERROR_INVALID_IMAGE 0x00000008
152 #define VA_STATUS_ERROR_INVALID_SUBPICTURE 0x00000009
153 #define VA_STATUS_ERROR_ATTR_NOT_SUPPORTED 0x0000000a
154 #define VA_STATUS_ERROR_MAX_NUM_EXCEEDED 0x0000000b
155 #define VA_STATUS_ERROR_UNSUPPORTED_PROFILE 0x0000000c
156 #define VA_STATUS_ERROR_UNSUPPORTED_ENTRYPOINT 0x0000000d
157 #define VA_STATUS_ERROR_UNSUPPORTED_RT_FORMAT 0x0000000e
158 #define VA_STATUS_ERROR_UNSUPPORTED_BUFFERTYPE 0x0000000f
159 #define VA_STATUS_ERROR_SURFACE_BUSY 0x00000010
160 #define VA_STATUS_ERROR_FLAG_NOT_SUPPORTED 0x00000011
161 #define VA_STATUS_ERROR_INVALID_PARAMETER 0x00000012
162 #define VA_STATUS_ERROR_RESOLUTION_NOT_SUPPORTED 0x00000013
163 #define VA_STATUS_ERROR_UNIMPLEMENTED 0x00000014
164 #define VA_STATUS_ERROR_SURFACE_IN_DISPLAYING 0x00000015
165 #define VA_STATUS_ERROR_INVALID_IMAGE_FORMAT 0x00000016
166 #define VA_STATUS_ERROR_DECODING_ERROR 0x00000017
167 #define VA_STATUS_ERROR_ENCODING_ERROR 0x00000018
169 * \brief An invalid/unsupported value was supplied.
171 * This is a catch-all error code for invalid or unsupported values.
172 * e.g. value exceeding the valid range, invalid type in the context
173 * of generic attribute values.
175 #define VA_STATUS_ERROR_INVALID_VALUE 0x00000019
176 /** \brief An unsupported filter was supplied. */
177 #define VA_STATUS_ERROR_UNSUPPORTED_FILTER 0x00000020
178 /** \brief An invalid filter chain was supplied. */
179 #define VA_STATUS_ERROR_INVALID_FILTER_CHAIN 0x00000021
180 /** \brief Indicate HW busy (e.g. run multiple encoding simultaneously). */
181 #define VA_STATUS_ERROR_HW_BUSY 0x00000022
182 #define VA_STATUS_ERROR_UNKNOWN 0xFFFFFFFF
184 /* De-interlacing flags for vaPutSurface() */
185 #define VA_FRAME_PICTURE 0x00000000
186 #define VA_TOP_FIELD 0x00000001
187 #define VA_BOTTOM_FIELD 0x00000002
190 * Enabled the positioning/cropping/blending feature:
191 * 1, specify the video playback position in the isurface
192 * 2, specify the cropping info for video playback
193 * 3, encoded video will blend with background color
195 #define VA_ENABLE_BLEND 0x00000004 /* video area blend with the constant color */
198 * Clears the drawable with background color.
199 * for hardware overlay based implementation this flag
200 * can be used to turn off the overlay
202 #define VA_CLEAR_DRAWABLE 0x00000008
204 /* Color space conversion flags for vaPutSurface() */
205 #define VA_SRC_BT601 0x00000010
206 #define VA_SRC_BT709 0x00000020
207 #define VA_SRC_SMPTE_240 0x00000040
209 /* Scaling flags for vaPutSurface() */
210 #define VA_FILTER_SCALING_DEFAULT 0x00000000
211 #define VA_FILTER_SCALING_FAST 0x00000100
212 #define VA_FILTER_SCALING_HQ 0x00000200
213 #define VA_FILTER_SCALING_NL_ANAMORPHIC 0x00000300
214 #define VA_FILTER_SCALING_MASK 0x00000f00
217 * Returns a short english description of error_status
219 const char *vaErrorStr(VAStatus error_status);
223 * A display must be obtained by calling vaGetDisplay() before calling
224 * vaInitialize() and other functions. This connects the API to the
225 * native window system.
226 * For X Windows, native_dpy would be from XOpenDisplay()
228 typedef void* VANativeDisplay; /* window system dependent */
230 int vaDisplayIsValid(VADisplay dpy);
233 * Initialize the library
235 VAStatus vaInitialize (
237 int *major_version, /* out */
238 int *minor_version /* out */
242 * After this call, all library internal resources will be cleaned up
244 VAStatus vaTerminate (
249 * vaQueryVendorString returns a pointer to a zero-terminated string
250 * describing some aspects of the VA implemenation on a specific
251 * hardware accelerator. The format of the returned string is vendor
252 * specific and at the discretion of the implementer.
253 * e.g. for the Intel GMA500 implementation, an example would be:
254 * "Intel GMA500 - 2.0.0.32L.0005"
256 const char *vaQueryVendorString (
260 typedef int (*VAPrivFunc)();
263 * Return a function pointer given a function name in the library.
264 * This allows private interfaces into the library
266 VAPrivFunc vaGetLibFunc (
271 /* Currently defined profiles */
274 /** \brief Profile ID used for video processing. */
276 VAProfileMPEG2Simple = 0,
277 VAProfileMPEG2Main = 1,
278 VAProfileMPEG4Simple = 2,
279 VAProfileMPEG4AdvancedSimple = 3,
280 VAProfileMPEG4Main = 4,
281 VAProfileH264Baseline = 5,
282 VAProfileH264Main = 6,
283 VAProfileH264High = 7,
284 VAProfileVC1Simple = 8,
285 VAProfileVC1Main = 9,
286 VAProfileVC1Advanced = 10,
287 VAProfileH263Baseline = 11,
288 VAProfileJPEGBaseline = 12,
289 VAProfileH264ConstrainedBaseline = 13
293 * Currently defined entrypoints
299 VAEntrypointIDCT = 3,
300 VAEntrypointMoComp = 4,
301 VAEntrypointDeblocking = 5,
302 VAEntrypointEncSlice = 6, /* slice level encode */
303 VAEntrypointEncPicture = 7, /* pictuer encode, JPEG, etc */
304 VAEntrypointVideoProc = 10, /**< Video pre/post-processing. */
308 /* Currently defined configuration attribute types */
311 VAConfigAttribRTFormat = 0,
312 VAConfigAttribSpatialResidual = 1,
313 VAConfigAttribSpatialClipping = 2,
314 VAConfigAttribIntraResidual = 3,
315 VAConfigAttribEncryption = 4,
316 VAConfigAttribRateControl = 5,
318 /** @name Attributes for encoding */
321 * \brief Packed headers mode. Read/write.
323 * This attribute determines what packed headers the driver supports,
324 * through vaGetConfigAttributes(); and what packed headers the user
325 * will be providing to the driver, through vaCreateConfig(), if the
326 * driver supports those.
328 * See \c VA_ENC_PACKED_HEADER_xxx for the list of packed headers.
330 VAConfigAttribEncPackedHeaders = 10,
332 * \brief Interlaced mode. Read/write.
334 * This attribute determines what kind of interlaced encoding mode
335 * the driver supports.
337 * See \c VA_ENC_INTERLACED_xxx for the list of interlaced modes.
339 VAConfigAttribEncInterlaced = 11,
341 * \brief Maximum number of reference frames. Read-only.
343 * This attribute determines the maximum number of reference
344 * frames supported for encoding.
346 * Note: for H.264 encoding, the value represents the maximum number
347 * of reference frames for both the reference picture list 0 (bottom
348 * 16 bits) and the reference picture list 1 (top 16 bits).
350 VAConfigAttribEncMaxRefFrames = 13,
352 * \brief Maximum number of slices per frame. Read-only.
354 * This attribute determines the maximum number of slices the
355 * driver can support to encode a single frame.
357 VAConfigAttribEncMaxSlices = 14,
359 * \brief Slice structure. Read-only.
361 * This attribute determines slice structures supported by the
362 * driver for encoding. This attribute is a hint to the user so
363 * that he can choose a suitable surface size and how to arrange
364 * the encoding process of multiple slices per frame.
366 * More specifically, for H.264 encoding, this attribute
367 * determines the range of accepted values to
368 * VAEncSliceParameterBufferH264::macroblock_address and
369 * VAEncSliceParameterBufferH264::num_macroblocks.
371 * See \c VA_ENC_SLICE_STRUCTURE_xxx for the supported slice
374 VAConfigAttribEncSliceStructure = 15,
376 * \brief Macroblock information. Read-only.
378 * This attribute determines whether the driver supports extra
379 * encoding information per-macroblock. e.g. QP.
381 * More specifically, for H.264 encoding, if the driver returns a non-zero
382 * value for this attribute, this means the application can create
383 * additional #VAEncMacroblockParameterBufferH264 buffers referenced
384 * through VAEncSliceParameterBufferH264::macroblock_info.
386 VAConfigAttribEncMacroblockInfo = 16,
388 VAConfigAttribTypeMax
389 } VAConfigAttribType;
392 * Configuration attributes
393 * If there is more than one value for an attribute, a default
394 * value will be assigned to the attribute if the client does not
395 * specify the attribute when creating a configuration
397 typedef struct _VAConfigAttrib {
398 VAConfigAttribType type;
399 unsigned int value; /* OR'd flags (bits) for this attribute */
402 /* attribute value for VAConfigAttribRTFormat */
403 #define VA_RT_FORMAT_YUV420 0x00000001
404 #define VA_RT_FORMAT_YUV422 0x00000002
405 #define VA_RT_FORMAT_YUV444 0x00000004
406 #define VA_RT_FORMAT_PROTECTED 0x80000000
408 /** @name Attribute values for VAConfigAttribRateControl */
410 /** \brief Driver does not support any form of rate control. */
411 #define VA_RC_NONE 0x00000001
412 /** \brief Constant bitrate. */
413 #define VA_RC_CBR 0x00000002
414 /** \brief Variable bitrate. */
415 #define VA_RC_VBR 0x00000004
416 /** \brief Video conference mode. */
417 #define VA_RC_VCM 0x00000008
418 /** \brief Constant QP. */
419 #define VA_RC_CQP 0x00000010
420 /** \brief Variable bitrate with peak rate higher than average bitrate. */
421 #define VA_RC_VBR_CONSTRAINED 0x00000020
424 /** @name Attribute values for VAConfigAttribEncPackedHeaders */
426 /** \brief Driver does not support any packed headers mode. */
427 #define VA_ENC_PACKED_HEADER_NONE 0x00000000
428 /** \brief Driver supports packed sequence headers. e.g. SPS for H.264. */
429 #define VA_ENC_PACKED_HEADER_SEQUENCE 0x00000001
430 /** \brief Driver supports packed picture headers. e.g. PPS for H.264. */
431 #define VA_ENC_PACKED_HEADER_PICTURE 0x00000002
432 /** \brief Driver supports packed slice headers. e.g. \c slice_header() for H.264. */
433 #define VA_ENC_PACKED_HEADER_SLICE 0x00000004
434 /** \brief Driver supports misc packed headers. e.g. SEI for H.264. */
435 #define VA_ENC_PACKED_HEADER_MISC 0x00000008
436 /** \brief Driver supports raw packed header, see VAEncPackedHeaderRawData */
437 #define VA_ENC_PACKED_HEADER_RAW_DATA 0x0000000C
440 /** @name Attribute values for VAConfigAttribEncInterlaced */
442 /** \brief Driver does not support interlaced coding. */
443 #define VA_ENC_INTERLACED_NONE 0x00000000
444 /** \brief Driver supports interlaced frame coding. */
445 #define VA_ENC_INTERLACED_FRAME 0x00000001
446 /** \brief Driver supports interlaced field coding. */
447 #define VA_ENC_INTERLACED_FIELD 0x00000002
448 /** \brief Driver supports macroblock adaptive frame field coding. */
449 #define VA_ENC_INTERLACED_MBAFF 0x00000004
450 /** \brief Driver supports picture adaptive frame field coding. */
451 #define VA_ENC_INTERLACED_PAFF 0x00000008
454 /** @name Attribute values for VAConfigAttribEncSliceStructure */
456 /** \brief Driver supports an arbitrary number of rows per slice. */
457 #define VA_ENC_SLICE_STRUCTURE_ARBITRARY_ROWS 0x00000000
458 /** \brief Driver supports a power-of-two number of rows per slice. */
459 #define VA_ENC_SLICE_STRUCTURE_POWER_OF_TWO_ROWS 0x00000001
460 /** \brief Driver supports an arbitrary number of rows per slice. */
461 #define VA_ENC_SLICE_STRUCTURE_ARBITRARY_MACROBLOCKS 0x00000002
465 * if an attribute is not applicable for a given
466 * profile/entrypoint pair, then set the value to the following
468 #define VA_ATTRIB_NOT_SUPPORTED 0x80000000
470 /* Get maximum number of profiles supported by the implementation */
471 int vaMaxNumProfiles (
475 /* Get maximum number of entrypoints supported by the implementation */
476 int vaMaxNumEntrypoints (
480 /* Get maximum number of attributs supported by the implementation */
481 int vaMaxNumConfigAttributes (
486 * Query supported profiles
487 * The caller must provide a "profile_list" array that can hold at
488 * least vaMaxNumProfile() entries. The actual number of profiles
489 * returned in "profile_list" is returned in "num_profile".
491 VAStatus vaQueryConfigProfiles (
493 VAProfile *profile_list, /* out */
494 int *num_profiles /* out */
498 * Query supported entrypoints for a given profile
499 * The caller must provide an "entrypoint_list" array that can hold at
500 * least vaMaxNumEntrypoints() entries. The actual number of entrypoints
501 * returned in "entrypoint_list" is returned in "num_entrypoints".
503 VAStatus vaQueryConfigEntrypoints (
506 VAEntrypoint *entrypoint_list, /* out */
507 int *num_entrypoints /* out */
511 * Get attributes for a given profile/entrypoint pair
512 * The caller must provide an "attrib_list" with all attributes to be
513 * retrieved. Upon return, the attributes in "attrib_list" have been
514 * updated with their value. Unknown attributes or attributes that are
515 * not supported for the given profile/entrypoint pair will have their
516 * value set to VA_ATTRIB_NOT_SUPPORTED
518 VAStatus vaGetConfigAttributes (
521 VAEntrypoint entrypoint,
522 VAConfigAttrib *attrib_list, /* in/out */
526 /* Generic ID type, can be re-typed for specific implementation */
527 typedef unsigned int VAGenericID;
529 typedef VAGenericID VAConfigID;
532 * Create a configuration for the decode pipeline
533 * it passes in the attribute list that specifies the attributes it cares
534 * about, with the rest taking default values.
536 VAStatus vaCreateConfig (
539 VAEntrypoint entrypoint,
540 VAConfigAttrib *attrib_list,
542 VAConfigID *config_id /* out */
546 * Free resources associdated with a given config
548 VAStatus vaDestroyConfig (
554 * Query all attributes for a given configuration
555 * The profile of the configuration is returned in "profile"
556 * The entrypoint of the configuration is returned in "entrypoint"
557 * The caller must provide an "attrib_list" array that can hold at least
558 * vaMaxNumConfigAttributes() entries. The actual number of attributes
559 * returned in "attrib_list" is returned in "num_attribs"
561 VAStatus vaQueryConfigAttributes (
563 VAConfigID config_id,
564 VAProfile *profile, /* out */
565 VAEntrypoint *entrypoint, /* out */
566 VAConfigAttrib *attrib_list,/* out */
567 int *num_attribs /* out */
572 * Contexts and Surfaces
574 * Context represents a "virtual" video decode pipeline. Surfaces are render
575 * targets for a given context. The data in the surfaces are not accessible
576 * to the client and the internal data format of the surface is implementatin
579 * Surfaces will be bound to a context when the context is created. Once
580 * a surface is bound to a given context, it can not be used to create
581 * another context. The association is removed when the context is destroyed
583 * Both contexts and surfaces are identified by unique IDs and its
584 * implementation specific internals are kept opaque to the clients
587 typedef VAGenericID VAContextID;
589 typedef VAGenericID VASurfaceID;
591 #define VA_INVALID_ID 0xffffffff
592 #define VA_INVALID_SURFACE VA_INVALID_ID
594 /** \brief Generic value types. */
596 VAGenericValueTypeInteger = 1, /**< 32-bit signed integer. */
597 VAGenericValueTypeFloat, /**< 32-bit floating-point value. */
598 VAGenericValueTypePointer, /**< Generic pointer type */
599 VAGenericValueTypeFunc /**< Pointer to function */
600 } VAGenericValueType;
602 /** \brief Generic function type. */
603 typedef void (*VAGenericFunc)(void);
605 /** \brief Generic value. */
606 typedef struct _VAGenericValue {
607 /** \brief Value type. See #VAGenericValueType. */
608 VAGenericValueType type;
609 /** \brief Value holder. */
611 /** \brief 32-bit signed integer. */
613 /** \brief 32-bit float. */
615 /** \brief Generic pointer. */
617 /** \brief Pointer to function. */
622 /** @name Surface attribute flags */
624 /** \brief Surface attribute is not supported. */
625 #define VA_SURFACE_ATTRIB_NOT_SUPPORTED 0x00000000
626 /** \brief Surface attribute can be got through vaQuerySurfaceAttributes(). */
627 #define VA_SURFACE_ATTRIB_GETTABLE 0x00000001
628 /** \brief Surface attribute can be set through vaCreateSurfaces(). */
629 #define VA_SURFACE_ATTRIB_SETTABLE 0x00000002
632 /** \brief Surface attribute types. */
634 VASurfaceAttribNone = 0,
636 * \brief Pixel format (fourcc).
638 * The value is meaningful as input to vaQuerySurfaceAttributes().
639 * If zero, the driver returns the optimal pixel format for the
640 * specified config. Otherwise, if non-zero, the value represents
641 * a pixel format (FOURCC) that is kept as is on output, if the
642 * driver supports it. Otherwise, the driver sets the value to
643 * zero and drops the \c VA_SURFACE_ATTRIB_SETTABLE flag.
645 VASurfaceAttribPixelFormat,
646 /** \brief Minimal width in pixels (int, read/write). */
647 VASurfaceAttribMinWidth,
648 /** \brief Maximal width in pixels (int, read-only). */
649 VASurfaceAttribMaxWidth,
650 /** \brief Minimal height in pixels (int, read-only). */
651 VASurfaceAttribMinHeight,
652 /** \brief Maximal height in pixels (int, read-only). */
653 VASurfaceAttribMaxHeight,
654 /** \brief Number of surface attributes. */
656 } VASurfaceAttribType;
658 /** \brief Surface attribute. */
659 typedef struct _VASurfaceAttrib {
661 VASurfaceAttribType type;
662 /** \brief Flags. See "Surface attribute flags". */
664 /** \brief Value. See "Surface attribute types" for the expected types. */
665 VAGenericValue value;
669 * \brief Get surface attributes for the supplied config.
671 * This function retrieves the surface attributes matching the supplied
672 * config. The caller shall provide an \c attrib_list with all attributes
673 * to be retrieved. Upon successful return, the attributes in \c attrib_list
674 * are updated with the requested value. Unknown attributes or attributes
675 * that are not supported for the given config will have their \c flags
676 * field set to \c VA_SURFACE_ATTRIB_NOT_SUPPORTED.
678 * @param[in] dpy the VA display
679 * @param[in] config the config identifying a codec or a video
680 * processing pipeline
681 * @param[in,out] attrib_list the list of attributes on input, with at
682 * least \c type fields filled in, and possibly \c value fields whenever
683 * necessary. The updated list of attributes and flags on output
684 * @param[in] num_attribs the number of attributes supplied in the
685 * \c attrib_list array
688 vaGetSurfaceAttributes(
691 VASurfaceAttrib *attrib_list,
692 unsigned int num_attribs
696 * \brief Creates an array of surfaces
698 * Creates an array of surfaces. The optional list of attributes shall
699 * be constructed and verified through vaGetSurfaceAttributes().
701 * @param[in] dpy the VA display
702 * @param[in] format the desired surface format. See \c VA_RT_FORMAT_*
703 * @param[in] width the surface width
704 * @param[in] height the surface height
705 * @param[out] surfaces the array of newly created surfaces
706 * @param[in] num_surfaces the number of surfaces to create
707 * @param[in] attrib_list the list of (optional) attributes, or \c NULL
708 * @param[in] num_attribs the number of attributes supplied in
709 * \c attrib_list, or zero
717 VASurfaceID *surfaces,
718 unsigned int num_surfaces,
719 VASurfaceAttrib *attrib_list,
720 unsigned int num_attribs
724 * vaDestroySurfaces - Destroy resources associated with surfaces.
725 * Surfaces can only be destroyed after the context associated has been
728 * surfaces: array of surfaces to destroy
729 * num_surfaces: number of surfaces in the array to be destroyed.
731 VAStatus vaDestroySurfaces (
733 VASurfaceID *surfaces,
737 #define VA_PROGRESSIVE 0x1
739 * vaCreateContext - Create a context
741 * config_id: configuration for the context
742 * picture_width: coded picture width
743 * picture_height: coded picture height
744 * flag: any combination of the following:
745 * VA_PROGRESSIVE (only progressive frame pictures in the sequence when set)
746 * render_targets: render targets (surfaces) tied to the context
747 * num_render_targets: number of render targets in the above array
748 * context: created context id upon return
750 VAStatus vaCreateContext (
752 VAConfigID config_id,
756 VASurfaceID *render_targets,
757 int num_render_targets,
758 VAContextID *context /* out */
762 * vaDestroyContext - Destroy a context
764 * context: context to be destroyed
766 VAStatus vaDestroyContext (
773 * Buffers are used to pass various types of data from the
774 * client to the server. The server maintains a data store
775 * for each buffer created, and the client idenfies a buffer
776 * through a unique buffer id assigned by the server.
779 typedef VAGenericID VABufferID;
783 VAPictureParameterBufferType = 0,
784 VAIQMatrixBufferType = 1,
785 VABitPlaneBufferType = 2,
786 VASliceGroupMapBufferType = 3,
787 VASliceParameterBufferType = 4,
788 VASliceDataBufferType = 5,
789 VAMacroblockParameterBufferType = 6,
790 VAResidualDataBufferType = 7,
791 VADeblockingParameterBufferType = 8,
792 VAImageBufferType = 9,
793 VAProtectedSliceDataBufferType = 10,
794 VAQMatrixBufferType = 11,
795 VAHuffmanTableBufferType = 12,
797 /* Following are encode buffer types */
798 VAEncCodedBufferType = 21,
799 VAEncSequenceParameterBufferType = 22,
800 VAEncPictureParameterBufferType = 23,
801 VAEncSliceParameterBufferType = 24,
802 VAEncPackedHeaderParameterBufferType = 25,
803 VAEncPackedHeaderDataBufferType = 26,
804 VAEncMiscParameterBufferType = 27,
805 VAEncMacroblockParameterBufferType = 28,
806 /* Following are video processing buffer types */
808 * \brief Video processing pipeline parameter buffer.
810 * This buffer describes the video processing pipeline. See
811 * #VAProcPipelineParameterBuffer for details.
813 VAProcPipelineParameterBufferType = 41,
815 * \brief Video filter parameter buffer.
817 * This buffer describes the video filter parameters. All buffers
818 * inherit from #VAProcFilterParameterBufferBase, thus including
819 * a unique filter buffer type.
821 * The default buffer used by most filters is #VAProcFilterParameterBuffer.
822 * Filters requiring advanced parameters include, but are not limited to,
823 * deinterlacing (#VAProcFilterParameterBufferDeinterlacing),
824 * color balance (#VAProcFilterParameterBufferColorBalance), etc.
826 VAProcFilterParameterBufferType = 42,
832 VAEncMiscParameterTypeFrameRate = 0,
833 VAEncMiscParameterTypeRateControl = 1,
834 VAEncMiscParameterTypeMaxSliceSize = 2,
835 VAEncMiscParameterTypeAIR = 3,
836 /** \brief Buffer type used to express a maximum frame size (in bits). */
837 VAEncMiscParameterTypeMaxFrameSize = 4,
838 /** \brief Buffer type used for HRD parameters. */
839 VAEncMiscParameterTypeHRD = 5,
840 } VAEncMiscParameterType;
842 /** \brief Packed header type. */
844 /** \brief Packed sequence header. */
845 VAEncPackedHeaderSequence = 1,
846 /** \brief Packed picture header. */
847 VAEncPackedHeaderPicture = 2,
848 /** \brief Packed slice header. */
849 VAEncPackedHeaderSlice = 3,
851 * \brief Packed raw header.
853 * Packed raw data header can be used by the client to insert a header
854 * into the bitstream data buffer at the point it is passed, the driver
855 * will handle the raw packed header based on "has_emulation_bytes" field
856 * in the packed header parameter structure.
858 VAEncPackedHeaderRawData = 4,
859 /** \brief Misc packed header. See codec-specific definitions. */
860 VAEncPackedHeaderMiscMask = 0x80000000,
861 } VAEncPackedHeaderType;
863 /** \brief Packed header parameter. */
864 typedef struct _VAEncPackedHeaderParameterBuffer {
865 /** Type of the packed header buffer. See #VAEncPackedHeaderType. */
867 /** \brief Size of the #VAEncPackedHeaderDataBuffer in bits. */
868 unsigned int bit_length;
869 /** \brief Flag: buffer contains start code emulation prevention bytes? */
870 unsigned char has_emulation_bytes;
871 } VAEncPackedHeaderParameterBuffer;
874 * For application, e.g. set a new bitrate
876 * VAEncMiscParameterBuffer *misc_param;
877 * VAEncMiscParameterRateControl *misc_rate_ctrl;
879 * vaCreateBuffer(dpy, context, VAEncMiscParameterBufferType,
880 * sizeof(VAEncMiscParameterBuffer) + sizeof(VAEncMiscParameterRateControl),
883 * vaMapBuffer(dpy,buf_id,(void **)&misc_param);
884 * misc_param->type = VAEncMiscParameterTypeRateControl;
885 * misc_rate_ctrl= (VAEncMiscParameterRateControl *)misc_param->data;
886 * misc_rate_ctrl->bits_per_second = 6400000;
887 * vaUnmapBuffer(dpy, buf_id);
888 * vaRenderPicture(dpy, context, &buf_id, 1);
890 typedef struct _VAEncMiscParameterBuffer
892 VAEncMiscParameterType type;
893 unsigned int data[0];
894 } VAEncMiscParameterBuffer;
897 /** \brief Rate control parameters */
898 typedef struct _VAEncMiscParameterRateControl
900 /* this is the maximum bit-rate to be constrained by the rate control implementation */
901 unsigned int bits_per_second;
902 /* this is the bit-rate the rate control is targeting, as a percentage of the maximum
903 * bit-rate for example if target_percentage is 95 then the rate control will target
904 * a bit-rate that is 95% of the maximum bit-rate
906 unsigned int target_percentage;
907 /* windows size in milliseconds. For example if this is set to 500,
908 * then the rate control will guarantee the target bit-rate over a 500 ms window
910 unsigned int window_size;
911 /* initial QP at I frames */
912 unsigned int initial_qp;
914 unsigned int basic_unit_size;
919 unsigned int reset : 1;
920 unsigned int disable_frame_skip : 1; /* Disable frame skip in rate control mode */
921 unsigned int disable_bit_stuffing : 1; /* Disable bit stuffing in rate control mode */
925 } VAEncMiscParameterRateControl;
927 typedef struct _VAEncMiscParameterFrameRate
929 unsigned int framerate;
930 } VAEncMiscParameterFrameRate;
933 * Allow a maximum slice size to be specified (in bits).
934 * The encoder will attempt to make sure that individual slices do not exceed this size
935 * Or to signal applicate if the slice size exceed this size, see "status" of VACodedBufferSegment
937 typedef struct _VAEncMiscParameterMaxSliceSize
939 unsigned int max_slice_size;
940 } VAEncMiscParameterMaxSliceSize;
942 typedef struct _VAEncMiscParameterAIR
944 unsigned int air_num_mbs;
945 unsigned int air_threshold;
946 unsigned int air_auto; /* if set to 1 then hardware auto-tune the AIR threshold */
947 } VAEncMiscParameterAIR;
949 typedef struct _VAEncMiscParameterHRD
951 unsigned int initial_buffer_fullness; /* in bits */
952 unsigned int buffer_size; /* in bits */
953 } VAEncMiscParameterHRD;
956 * \brief Defines a maximum frame size (in bits).
958 * This misc parameter buffer defines the maximum size of a frame (in
959 * bits). The encoder will try to make sure that each frame does not
960 * exceed this size. Otherwise, if the frame size exceeds this size,
961 * the \c status flag of #VACodedBufferSegment will contain
962 * #VA_CODED_BUF_STATUS_FRAME_SIZE_OVERFLOW.
964 typedef struct _VAEncMiscParameterBufferMaxFrameSize {
965 /** \brief Type. Shall be set to #VAEncMiscParameterTypeMaxFrameSize. */
966 VAEncMiscParameterType type;
967 /** \brief Maximum size of a frame (in bits). */
968 unsigned int max_frame_size;
969 } VAEncMiscParameterBufferMaxFrameSize;
972 * There will be cases where the bitstream buffer will not have enough room to hold
973 * the data for the entire slice, and the following flags will be used in the slice
974 * parameter to signal to the server for the possible cases.
975 * If a slice parameter buffer and slice data buffer pair is sent to the server with
976 * the slice data partially in the slice data buffer (BEGIN and MIDDLE cases below),
977 * then a slice parameter and data buffer needs to be sent again to complete this slice.
979 #define VA_SLICE_DATA_FLAG_ALL 0x00 /* whole slice is in the buffer */
980 #define VA_SLICE_DATA_FLAG_BEGIN 0x01 /* The beginning of the slice is in the buffer but the end if not */
981 #define VA_SLICE_DATA_FLAG_MIDDLE 0x02 /* Neither beginning nor end of the slice is in the buffer */
982 #define VA_SLICE_DATA_FLAG_END 0x04 /* end of the slice is in the buffer */
984 /* Codec-independent Slice Parameter Buffer base */
985 typedef struct _VASliceParameterBufferBase
987 unsigned int slice_data_size; /* number of bytes in the slice data buffer for this slice */
988 unsigned int slice_data_offset; /* the offset to the first byte of slice data */
989 unsigned int slice_data_flag; /* see VA_SLICE_DATA_FLAG_XXX definitions */
990 } VASliceParameterBufferBase;
993 /****************************
994 * JEPG data structure
995 ***************************/
996 typedef struct _VAQMatrixBufferJPEG
998 int load_lum_quantiser_matrix;
999 int load_chroma_quantiser_matrix;
1000 unsigned char lum_quantiser_matrix[64];
1001 unsigned char chroma_quantiser_matrix[64];
1002 } VAQMatrixBufferJPEG;
1004 typedef struct _VAEncPictureParameterBufferJPEG
1006 VASurfaceID reconstructed_picture;
1007 unsigned short picture_width;
1008 unsigned short picture_height;
1009 VABufferID coded_buf;
1010 } VAEncPictureParameterBufferJPEG;
1012 #include <va/va_dec_jpeg.h>
1014 /****************************
1015 * MPEG-2 data structures
1016 ****************************/
1018 /* MPEG-2 Picture Parameter Buffer */
1020 * For each frame or field, and before any slice data, a single
1021 * picture parameter buffer must be send.
1023 typedef struct _VAPictureParameterBufferMPEG2
1025 unsigned short horizontal_size;
1026 unsigned short vertical_size;
1027 VASurfaceID forward_reference_picture;
1028 VASurfaceID backward_reference_picture;
1029 /* meanings of the following fields are the same as in the standard */
1030 int picture_coding_type;
1031 int f_code; /* pack all four fcode into this */
1034 unsigned int intra_dc_precision : 2;
1035 unsigned int picture_structure : 2;
1036 unsigned int top_field_first : 1;
1037 unsigned int frame_pred_frame_dct : 1;
1038 unsigned int concealment_motion_vectors : 1;
1039 unsigned int q_scale_type : 1;
1040 unsigned int intra_vlc_format : 1;
1041 unsigned int alternate_scan : 1;
1042 unsigned int repeat_first_field : 1;
1043 unsigned int progressive_frame : 1;
1044 unsigned int is_first_field : 1; /* indicate whether the current field
1045 * is the first field for field picture
1049 } picture_coding_extension;
1050 } VAPictureParameterBufferMPEG2;
1052 /* MPEG-2 Inverse Quantization Matrix Buffer */
1053 typedef struct _VAIQMatrixBufferMPEG2
1055 int load_intra_quantiser_matrix;
1056 int load_non_intra_quantiser_matrix;
1057 int load_chroma_intra_quantiser_matrix;
1058 int load_chroma_non_intra_quantiser_matrix;
1059 unsigned char intra_quantiser_matrix[64];
1060 unsigned char non_intra_quantiser_matrix[64];
1061 unsigned char chroma_intra_quantiser_matrix[64];
1062 unsigned char chroma_non_intra_quantiser_matrix[64];
1063 } VAIQMatrixBufferMPEG2;
1065 /* MPEG-2 Slice Parameter Buffer */
1066 typedef struct _VASliceParameterBufferMPEG2
1068 unsigned int slice_data_size;/* number of bytes in the slice data buffer for this slice */
1069 unsigned int slice_data_offset;/* the offset to the first byte of slice data */
1070 unsigned int slice_data_flag; /* see VA_SLICE_DATA_FLAG_XXX defintions */
1071 unsigned int macroblock_offset;/* the offset to the first bit of MB from the first byte of slice data */
1072 unsigned int slice_horizontal_position;
1073 unsigned int slice_vertical_position;
1074 int quantiser_scale_code;
1075 int intra_slice_flag;
1076 } VASliceParameterBufferMPEG2;
1078 /* MPEG-2 Macroblock Parameter Buffer */
1079 typedef struct _VAMacroblockParameterBufferMPEG2
1081 unsigned short macroblock_address;
1083 * macroblock_address (in raster scan order)
1085 * bottom-right: picture-height-in-mb*picture-width-in-mb - 1
1087 unsigned char macroblock_type; /* see definition below */
1090 unsigned int frame_motion_type : 2;
1091 unsigned int field_motion_type : 2;
1092 unsigned int dct_type : 1;
1096 unsigned char motion_vertical_field_select;
1098 * motion_vertical_field_select:
1099 * see section 6.3.17.2 in the spec
1100 * only the lower 4 bits are used
1101 * bit 0: first vector forward
1102 * bit 1: first vector backward
1103 * bit 2: second vector forward
1104 * bit 3: second vector backward
1106 short PMV[2][2][2]; /* see Table 7-7 in the spec */
1107 unsigned short coded_block_pattern;
1109 * The bitplanes for coded_block_pattern are described
1110 * in Figure 6.10-12 in the spec
1113 /* Number of skipped macroblocks after this macroblock */
1114 unsigned short num_skipped_macroblocks;
1115 } VAMacroblockParameterBufferMPEG2;
1118 * OR'd flags for macroblock_type (section 6.3.17.1 in the spec)
1120 #define VA_MB_TYPE_MOTION_FORWARD 0x02
1121 #define VA_MB_TYPE_MOTION_BACKWARD 0x04
1122 #define VA_MB_TYPE_MOTION_PATTERN 0x08
1123 #define VA_MB_TYPE_MOTION_INTRA 0x10
1126 * MPEG-2 Residual Data Buffer
1127 * For each macroblock, there wil be 64 shorts (16-bit) in the
1128 * residual data buffer
1131 /****************************
1132 * MPEG-4 Part 2 data structures
1133 ****************************/
1135 /* MPEG-4 Picture Parameter Buffer */
1137 * For each frame or field, and before any slice data, a single
1138 * picture parameter buffer must be send.
1140 typedef struct _VAPictureParameterBufferMPEG4
1142 unsigned short vop_width;
1143 unsigned short vop_height;
1144 VASurfaceID forward_reference_picture;
1145 VASurfaceID backward_reference_picture;
1148 unsigned int short_video_header : 1;
1149 unsigned int chroma_format : 2;
1150 unsigned int interlaced : 1;
1151 unsigned int obmc_disable : 1;
1152 unsigned int sprite_enable : 2;
1153 unsigned int sprite_warping_accuracy : 2;
1154 unsigned int quant_type : 1;
1155 unsigned int quarter_sample : 1;
1156 unsigned int data_partitioned : 1;
1157 unsigned int reversible_vlc : 1;
1158 unsigned int resync_marker_disable : 1;
1162 unsigned char no_of_sprite_warping_points;
1163 short sprite_trajectory_du[3];
1164 short sprite_trajectory_dv[3];
1165 unsigned char quant_precision;
1168 unsigned int vop_coding_type : 2;
1169 unsigned int backward_reference_vop_coding_type : 2;
1170 unsigned int vop_rounding_type : 1;
1171 unsigned int intra_dc_vlc_thr : 3;
1172 unsigned int top_field_first : 1;
1173 unsigned int alternate_vertical_scan_flag : 1;
1177 unsigned char vop_fcode_forward;
1178 unsigned char vop_fcode_backward;
1179 unsigned short vop_time_increment_resolution;
1180 /* short header related */
1181 unsigned char num_gobs_in_vop;
1182 unsigned char num_macroblocks_in_gob;
1183 /* for direct mode prediction */
1186 } VAPictureParameterBufferMPEG4;
1188 /* MPEG-4 Inverse Quantization Matrix Buffer */
1189 typedef struct _VAIQMatrixBufferMPEG4
1191 int load_intra_quant_mat;
1192 int load_non_intra_quant_mat;
1193 unsigned char intra_quant_mat[64];
1194 unsigned char non_intra_quant_mat[64];
1195 } VAIQMatrixBufferMPEG4;
1197 /* MPEG-4 Slice Parameter Buffer */
1198 typedef struct _VASliceParameterBufferMPEG4
1200 unsigned int slice_data_size;/* number of bytes in the slice data buffer for this slice */
1201 unsigned int slice_data_offset;/* the offset to the first byte of slice data */
1202 unsigned int slice_data_flag; /* see VA_SLICE_DATA_FLAG_XXX defintions */
1203 unsigned int macroblock_offset;/* the offset to the first bit of MB from the first byte of slice data */
1204 unsigned int macroblock_number;
1206 } VASliceParameterBufferMPEG4;
1209 VC-1 data structures
1212 typedef enum /* see 7.1.1.32 */
1215 VAMvMode1MvHalfPel = 1,
1216 VAMvMode1MvHalfPelBilinear = 2,
1217 VAMvModeMixedMv = 3,
1218 VAMvModeIntensityCompensation = 4
1221 /* VC-1 Picture Parameter Buffer */
1223 * For each picture, and before any slice data, a picture parameter
1224 * buffer must be send. Multiple picture parameter buffers may be
1225 * sent for a single picture. In that case picture parameters will
1226 * apply to all slice data that follow it until a new picture
1227 * parameter buffer is sent.
1230 * pic_quantizer_type should be set to the applicable quantizer
1231 * type as defined by QUANTIZER (J.1.19) and either
1232 * PQUANTIZER (7.1.1.8) or PQINDEX (7.1.1.6)
1234 typedef struct _VAPictureParameterBufferVC1
1236 VASurfaceID forward_reference_picture;
1237 VASurfaceID backward_reference_picture;
1238 /* if out-of-loop post-processing is done on the render
1239 target, then we need to keep the in-loop decoded
1240 picture as a reference picture */
1241 VASurfaceID inloop_decoded_picture;
1243 /* sequence layer for AP or meta data for SP and MP */
1246 unsigned int pulldown : 1; /* SEQUENCE_LAYER::PULLDOWN */
1247 unsigned int interlace : 1; /* SEQUENCE_LAYER::INTERLACE */
1248 unsigned int tfcntrflag : 1; /* SEQUENCE_LAYER::TFCNTRFLAG */
1249 unsigned int finterpflag : 1; /* SEQUENCE_LAYER::FINTERPFLAG */
1250 unsigned int psf : 1; /* SEQUENCE_LAYER::PSF */
1251 unsigned int multires : 1; /* METADATA::MULTIRES */
1252 unsigned int overlap : 1; /* METADATA::OVERLAP */
1253 unsigned int syncmarker : 1; /* METADATA::SYNCMARKER */
1254 unsigned int rangered : 1; /* METADATA::RANGERED */
1255 unsigned int max_b_frames : 3; /* METADATA::MAXBFRAMES */
1256 unsigned int profile : 2; /* SEQUENCE_LAYER::PROFILE or The MSB of METADATA::PROFILE */
1261 unsigned short coded_width; /* ENTRY_POINT_LAYER::CODED_WIDTH */
1262 unsigned short coded_height; /* ENTRY_POINT_LAYER::CODED_HEIGHT */
1265 unsigned int broken_link : 1; /* ENTRY_POINT_LAYER::BROKEN_LINK */
1266 unsigned int closed_entry : 1; /* ENTRY_POINT_LAYER::CLOSED_ENTRY */
1267 unsigned int panscan_flag : 1; /* ENTRY_POINT_LAYER::PANSCAN_FLAG */
1268 unsigned int loopfilter : 1; /* ENTRY_POINT_LAYER::LOOPFILTER */
1271 } entrypoint_fields;
1272 unsigned char conditional_overlap_flag; /* ENTRY_POINT_LAYER::CONDOVER */
1273 unsigned char fast_uvmc_flag; /* ENTRY_POINT_LAYER::FASTUVMC */
1276 unsigned int luma_flag : 1; /* ENTRY_POINT_LAYER::RANGE_MAPY_FLAG */
1277 unsigned int luma : 3; /* ENTRY_POINT_LAYER::RANGE_MAPY */
1278 unsigned int chroma_flag : 1; /* ENTRY_POINT_LAYER::RANGE_MAPUV_FLAG */
1279 unsigned int chroma : 3; /* ENTRY_POINT_LAYER::RANGE_MAPUV */
1282 } range_mapping_fields;
1284 unsigned char b_picture_fraction; /* PICTURE_LAYER::BFRACTION */
1285 unsigned char cbp_table; /* PICTURE_LAYER::CBPTAB/ICBPTAB */
1286 unsigned char mb_mode_table; /* PICTURE_LAYER::MBMODETAB */
1287 unsigned char range_reduction_frame;/* PICTURE_LAYER::RANGEREDFRM */
1288 unsigned char rounding_control; /* PICTURE_LAYER::RNDCTRL */
1289 unsigned char post_processing; /* PICTURE_LAYER::POSTPROC */
1290 unsigned char picture_resolution_index; /* PICTURE_LAYER::RESPIC */
1291 unsigned char luma_scale; /* PICTURE_LAYER::LUMSCALE */
1292 unsigned char luma_shift; /* PICTURE_LAYER::LUMSHIFT */
1295 unsigned int picture_type : 3; /* PICTURE_LAYER::PTYPE */
1296 unsigned int frame_coding_mode : 3; /* PICTURE_LAYER::FCM */
1297 unsigned int top_field_first : 1; /* PICTURE_LAYER::TFF */
1298 unsigned int is_first_field : 1; /* set to 1 if it is the first field */
1299 unsigned int intensity_compensation : 1; /* PICTURE_LAYER::INTCOMP */
1305 unsigned int mv_type_mb : 1; /* PICTURE::MVTYPEMB */
1306 unsigned int direct_mb : 1; /* PICTURE::DIRECTMB */
1307 unsigned int skip_mb : 1; /* PICTURE::SKIPMB */
1308 unsigned int field_tx : 1; /* PICTURE::FIELDTX */
1309 unsigned int forward_mb : 1; /* PICTURE::FORWARDMB */
1310 unsigned int ac_pred : 1; /* PICTURE::ACPRED */
1311 unsigned int overflags : 1; /* PICTURE::OVERFLAGS */
1317 unsigned int bp_mv_type_mb : 1; /* PICTURE::MVTYPEMB */
1318 unsigned int bp_direct_mb : 1; /* PICTURE::DIRECTMB */
1319 unsigned int bp_skip_mb : 1; /* PICTURE::SKIPMB */
1320 unsigned int bp_field_tx : 1; /* PICTURE::FIELDTX */
1321 unsigned int bp_forward_mb : 1; /* PICTURE::FORWARDMB */
1322 unsigned int bp_ac_pred : 1; /* PICTURE::ACPRED */
1323 unsigned int bp_overflags : 1; /* PICTURE::OVERFLAGS */
1326 } bitplane_present; /* signal what bitplane is being passed via the bitplane buffer */
1329 unsigned int reference_distance_flag : 1;/* PICTURE_LAYER::REFDIST_FLAG */
1330 unsigned int reference_distance : 5;/* PICTURE_LAYER::REFDIST */
1331 unsigned int num_reference_pictures: 1;/* PICTURE_LAYER::NUMREF */
1332 unsigned int reference_field_pic_indicator : 1;/* PICTURE_LAYER::REFFIELD */
1338 unsigned int mv_mode : 3; /* PICTURE_LAYER::MVMODE */
1339 unsigned int mv_mode2 : 3; /* PICTURE_LAYER::MVMODE2 */
1340 unsigned int mv_table : 3; /* PICTURE_LAYER::MVTAB/IMVTAB */
1341 unsigned int two_mv_block_pattern_table: 2; /* PICTURE_LAYER::2MVBPTAB */
1342 unsigned int four_mv_switch : 1; /* PICTURE_LAYER::4MVSWITCH */
1343 unsigned int four_mv_block_pattern_table : 2; /* PICTURE_LAYER::4MVBPTAB */
1344 unsigned int extended_mv_flag : 1; /* ENTRY_POINT_LAYER::EXTENDED_MV */
1345 unsigned int extended_mv_range : 2; /* PICTURE_LAYER::MVRANGE */
1346 unsigned int extended_dmv_flag : 1; /* ENTRY_POINT_LAYER::EXTENDED_DMV */
1347 unsigned int extended_dmv_range : 2; /* PICTURE_LAYER::DMVRANGE */
1353 unsigned int dquant : 2; /* ENTRY_POINT_LAYER::DQUANT */
1354 unsigned int quantizer : 2; /* ENTRY_POINT_LAYER::QUANTIZER */
1355 unsigned int half_qp : 1; /* PICTURE_LAYER::HALFQP */
1356 unsigned int pic_quantizer_scale : 5;/* PICTURE_LAYER::PQUANT */
1357 unsigned int pic_quantizer_type : 1;/* PICTURE_LAYER::PQUANTIZER */
1358 unsigned int dq_frame : 1; /* VOPDQUANT::DQUANTFRM */
1359 unsigned int dq_profile : 2; /* VOPDQUANT::DQPROFILE */
1360 unsigned int dq_sb_edge : 2; /* VOPDQUANT::DQSBEDGE */
1361 unsigned int dq_db_edge : 2; /* VOPDQUANT::DQDBEDGE */
1362 unsigned int dq_binary_level : 1; /* VOPDQUANT::DQBILEVEL */
1363 unsigned int alt_pic_quantizer : 5;/* VOPDQUANT::ALTPQUANT */
1366 } pic_quantizer_fields;
1369 unsigned int variable_sized_transform_flag : 1;/* ENTRY_POINT_LAYER::VSTRANSFORM */
1370 unsigned int mb_level_transform_type_flag : 1;/* PICTURE_LAYER::TTMBF */
1371 unsigned int frame_level_transform_type : 2;/* PICTURE_LAYER::TTFRM */
1372 unsigned int transform_ac_codingset_idx1 : 2;/* PICTURE_LAYER::TRANSACFRM */
1373 unsigned int transform_ac_codingset_idx2 : 2;/* PICTURE_LAYER::TRANSACFRM2 */
1374 unsigned int intra_transform_dc_table : 1;/* PICTURE_LAYER::TRANSDCTAB */
1378 } VAPictureParameterBufferVC1;
1380 /* VC-1 Bitplane Buffer
1381 There will be at most three bitplanes coded in any picture header. To send
1382 the bitplane data more efficiently, each byte is divided in two nibbles, with
1383 each nibble carrying three bitplanes for one macroblock. The following table
1384 shows the bitplane data arrangement within each nibble based on the picture
1387 Picture Type Bit3 Bit2 Bit1 Bit0
1388 I or BI OVERFLAGS ACPRED FIELDTX
1389 P MYTYPEMB SKIPMB DIRECTMB
1390 B FORWARDMB SKIPMB DIRECTMB
1392 Within each byte, the lower nibble is for the first MB and the upper nibble is
1393 for the second MB. E.g. the lower nibble of the first byte in the bitplane
1394 buffer is for Macroblock #1 and the upper nibble of the first byte is for
1395 Macroblock #2 in the first row.
1398 /* VC-1 Slice Parameter Buffer */
1399 typedef struct _VASliceParameterBufferVC1
1401 unsigned int slice_data_size;/* number of bytes in the slice data buffer for this slice */
1402 unsigned int slice_data_offset;/* the offset to the first byte of slice data */
1403 unsigned int slice_data_flag; /* see VA_SLICE_DATA_FLAG_XXX defintions */
1404 unsigned int macroblock_offset;/* the offset to the first bit of MB from the first byte of slice data */
1405 unsigned int slice_vertical_position;
1406 } VASliceParameterBufferVC1;
1408 /* VC-1 Slice Data Buffer */
1410 This is simplely a buffer containing raw bit-stream bytes
1413 /****************************
1414 * H.264/AVC data structures
1415 ****************************/
1417 typedef struct _VAPictureH264
1419 VASurfaceID picture_id;
1420 unsigned int frame_idx;
1422 signed int TopFieldOrderCnt;
1423 signed int BottomFieldOrderCnt;
1425 /* flags in VAPictureH264 could be OR of the following */
1426 #define VA_PICTURE_H264_INVALID 0x00000001
1427 #define VA_PICTURE_H264_TOP_FIELD 0x00000002
1428 #define VA_PICTURE_H264_BOTTOM_FIELD 0x00000004
1429 #define VA_PICTURE_H264_SHORT_TERM_REFERENCE 0x00000008
1430 #define VA_PICTURE_H264_LONG_TERM_REFERENCE 0x00000010
1432 /* H.264 Picture Parameter Buffer */
1434 * For each picture, and before any slice data, a single
1435 * picture parameter buffer must be send.
1437 typedef struct _VAPictureParameterBufferH264
1439 VAPictureH264 CurrPic;
1440 VAPictureH264 ReferenceFrames[16]; /* in DPB */
1441 unsigned short picture_width_in_mbs_minus1;
1442 unsigned short picture_height_in_mbs_minus1;
1443 unsigned char bit_depth_luma_minus8;
1444 unsigned char bit_depth_chroma_minus8;
1445 unsigned char num_ref_frames;
1448 unsigned int chroma_format_idc : 2;
1449 unsigned int residual_colour_transform_flag : 1;
1450 unsigned int gaps_in_frame_num_value_allowed_flag : 1;
1451 unsigned int frame_mbs_only_flag : 1;
1452 unsigned int mb_adaptive_frame_field_flag : 1;
1453 unsigned int direct_8x8_inference_flag : 1;
1454 unsigned int MinLumaBiPredSize8x8 : 1; /* see A.3.3.2 */
1455 unsigned int log2_max_frame_num_minus4 : 4;
1456 unsigned int pic_order_cnt_type : 2;
1457 unsigned int log2_max_pic_order_cnt_lsb_minus4 : 4;
1458 unsigned int delta_pic_order_always_zero_flag : 1;
1462 unsigned char num_slice_groups_minus1;
1463 unsigned char slice_group_map_type;
1464 unsigned short slice_group_change_rate_minus1;
1465 signed char pic_init_qp_minus26;
1466 signed char pic_init_qs_minus26;
1467 signed char chroma_qp_index_offset;
1468 signed char second_chroma_qp_index_offset;
1471 unsigned int entropy_coding_mode_flag : 1;
1472 unsigned int weighted_pred_flag : 1;
1473 unsigned int weighted_bipred_idc : 2;
1474 unsigned int transform_8x8_mode_flag : 1;
1475 unsigned int field_pic_flag : 1;
1476 unsigned int constrained_intra_pred_flag : 1;
1477 unsigned int pic_order_present_flag : 1;
1478 unsigned int deblocking_filter_control_present_flag : 1;
1479 unsigned int redundant_pic_cnt_present_flag : 1;
1480 unsigned int reference_pic_flag : 1; /* nal_ref_idc != 0 */
1484 unsigned short frame_num;
1485 } VAPictureParameterBufferH264;
1487 /* H.264 Inverse Quantization Matrix Buffer */
1488 typedef struct _VAIQMatrixBufferH264
1490 unsigned char ScalingList4x4[6][16];
1491 unsigned char ScalingList8x8[2][64];
1492 } VAIQMatrixBufferH264;
1495 * H.264 Slice Group Map Buffer
1496 * When VAPictureParameterBufferH264::num_slice_group_minus1 is not equal to 0,
1497 * A slice group map buffer should be sent for each picture if required. The buffer
1498 * is sent only when there is a change in the mapping values.
1499 * The slice group map buffer map "map units" to slice groups as specified in
1500 * section 8.2.2 of the H.264 spec. The buffer will contain one byte for each macroblock
1501 * in raster scan order
1504 /* H.264 Slice Parameter Buffer */
1505 typedef struct _VASliceParameterBufferH264
1507 unsigned int slice_data_size;/* number of bytes in the slice data buffer for this slice */
1508 /** \brief Byte offset to the NAL Header Unit for this slice. */
1509 unsigned int slice_data_offset;
1510 unsigned int slice_data_flag; /* see VA_SLICE_DATA_FLAG_XXX defintions */
1512 * \brief Bit offset from NAL Header Unit to the begining of slice_data().
1514 * This bit offset is relative to and includes the NAL unit byte
1515 * and represents the number of bits parsed in the slice_header()
1516 * after the removal of any emulation prevention bytes in
1517 * there. However, the slice data buffer passed to the hardware is
1518 * the original bitstream, thus including any emulation prevention
1521 unsigned short slice_data_bit_offset;
1522 unsigned short first_mb_in_slice;
1523 unsigned char slice_type;
1524 unsigned char direct_spatial_mv_pred_flag;
1525 unsigned char num_ref_idx_l0_active_minus1;
1526 unsigned char num_ref_idx_l1_active_minus1;
1527 unsigned char cabac_init_idc;
1528 char slice_qp_delta;
1529 unsigned char disable_deblocking_filter_idc;
1530 char slice_alpha_c0_offset_div2;
1531 char slice_beta_offset_div2;
1532 VAPictureH264 RefPicList0[32]; /* See 8.2.4.2 */
1533 VAPictureH264 RefPicList1[32]; /* See 8.2.4.2 */
1534 unsigned char luma_log2_weight_denom;
1535 unsigned char chroma_log2_weight_denom;
1536 unsigned char luma_weight_l0_flag;
1537 short luma_weight_l0[32];
1538 short luma_offset_l0[32];
1539 unsigned char chroma_weight_l0_flag;
1540 short chroma_weight_l0[32][2];
1541 short chroma_offset_l0[32][2];
1542 unsigned char luma_weight_l1_flag;
1543 short luma_weight_l1[32];
1544 short luma_offset_l1[32];
1545 unsigned char chroma_weight_l1_flag;
1546 short chroma_weight_l1[32][2];
1547 short chroma_offset_l1[32][2];
1548 } VASliceParameterBufferH264;
1550 /****************************
1551 * Common encode data structures
1552 ****************************/
1555 VAEncPictureTypeIntra = 0,
1556 VAEncPictureTypePredictive = 1,
1557 VAEncPictureTypeBidirectional = 2,
1560 /* Encode Slice Parameter Buffer */
1561 typedef struct _VAEncSliceParameterBuffer
1563 unsigned int start_row_number; /* starting MB row number for this slice */
1564 unsigned int slice_height; /* slice height measured in MB */
1567 unsigned int is_intra : 1;
1568 unsigned int disable_deblocking_filter_idc : 2;
1569 unsigned int uses_long_term_ref :1;
1570 unsigned int is_long_term_ref :1;
1574 } VAEncSliceParameterBuffer;
1577 /****************************
1578 * H.263 specific encode data structures
1579 ****************************/
1581 typedef struct _VAEncSequenceParameterBufferH263
1583 unsigned int intra_period;
1584 unsigned int bits_per_second;
1585 unsigned int frame_rate;
1586 unsigned int initial_qp;
1587 unsigned int min_qp;
1588 } VAEncSequenceParameterBufferH263;
1590 typedef struct _VAEncPictureParameterBufferH263
1592 VASurfaceID reference_picture;
1593 VASurfaceID reconstructed_picture;
1594 VABufferID coded_buf;
1595 unsigned short picture_width;
1596 unsigned short picture_height;
1597 VAEncPictureType picture_type;
1598 } VAEncPictureParameterBufferH263;
1600 /****************************
1601 * MPEG-4 specific encode data structures
1602 ****************************/
1604 typedef struct _VAEncSequenceParameterBufferMPEG4
1606 unsigned char profile_and_level_indication;
1607 unsigned int intra_period;
1608 unsigned int video_object_layer_width;
1609 unsigned int video_object_layer_height;
1610 unsigned int vop_time_increment_resolution;
1611 unsigned int fixed_vop_rate;
1612 unsigned int fixed_vop_time_increment;
1613 unsigned int bits_per_second;
1614 unsigned int frame_rate;
1615 unsigned int initial_qp;
1616 unsigned int min_qp;
1617 } VAEncSequenceParameterBufferMPEG4;
1619 typedef struct _VAEncPictureParameterBufferMPEG4
1621 VASurfaceID reference_picture;
1622 VASurfaceID reconstructed_picture;
1623 VABufferID coded_buf;
1624 unsigned short picture_width;
1625 unsigned short picture_height;
1626 unsigned int modulo_time_base; /* number of 1s */
1627 unsigned int vop_time_increment;
1628 VAEncPictureType picture_type;
1629 } VAEncPictureParameterBufferMPEG4;
1633 /* Buffer functions */
1636 * Creates a buffer for "num_elements" elements of "size" bytes and
1637 * initalize with "data".
1638 * if "data" is null, then the contents of the buffer data store
1640 * Basically there are two ways to get buffer data to the server side. One is
1641 * to call vaCreateBuffer() with a non-null "data", which results the data being
1642 * copied to the data store on the server side. A different method that
1643 * eliminates this copy is to pass null as "data" when calling vaCreateBuffer(),
1644 * and then use vaMapBuffer() to map the data store from the server side to the
1645 * client address space for access.
1646 * Note: image buffers are created by the library, not the client. Please see
1647 * vaCreateImage on how image buffers are managed.
1649 VAStatus vaCreateBuffer (
1651 VAContextID context,
1652 VABufferType type, /* in */
1653 unsigned int size, /* in */
1654 unsigned int num_elements, /* in */
1655 void *data, /* in */
1656 VABufferID *buf_id /* out */
1660 * Convey to the server how many valid elements are in the buffer.
1661 * e.g. if multiple slice parameters are being held in a single buffer,
1662 * this will communicate to the server the number of slice parameters
1663 * that are valid in the buffer.
1665 VAStatus vaBufferSetNumElements (
1667 VABufferID buf_id, /* in */
1668 unsigned int num_elements /* in */
1673 * device independent data structure for codedbuffer
1677 * FICTURE_AVE_QP(bit7-0): The average Qp value used during this frame
1678 * LARGE_SLICE(bit8):At least one slice in the current frame was large
1679 * enough for the encoder to attempt to limit its size.
1680 * SLICE_OVERFLOW(bit9): At least one slice in the current frame has
1681 * exceeded the maximum slice size specified.
1682 * BITRATE_OVERFLOW(bit10): The peak bitrate was exceeded for this frame.
1683 * BITRATE_HIGH(bit11): The frame size got within the safety margin of the maximum size (VCM only)
1684 * AIR_MB_OVER_THRESHOLD: the number of MBs adapted to Intra MB
1686 #define VA_CODED_BUF_STATUS_PICTURE_AVE_QP_MASK 0xff
1687 #define VA_CODED_BUF_STATUS_LARGE_SLICE_MASK 0x100
1688 #define VA_CODED_BUF_STATUS_SLICE_OVERFLOW_MASK 0x200
1689 #define VA_CODED_BUF_STATUS_BITRATE_OVERFLOW 0x400
1690 #define VA_CODED_BUF_STATUS_BITRATE_HIGH 0x800
1692 * \brief The frame has exceeded the maximum requested size.
1694 * This flag indicates that the encoded frame size exceeds the value
1695 * specified through a misc parameter buffer of type
1696 * #VAEncMiscParameterTypeMaxFrameSize.
1698 #define VA_CODED_BUF_STATUS_FRAME_SIZE_OVERFLOW 0x1000
1699 #define VA_CODED_BUF_STATUS_AIR_MB_OVER_THRESHOLD 0xff0000
1702 * \brief The coded buffer segment contains a single NAL unit.
1704 * This flag indicates that the coded buffer segment contains a
1705 * single NAL unit. This flag might be useful to the user for
1706 * processing the coded buffer.
1708 #define VA_CODED_BUF_STATUS_SINGLE_NALU 0x10000000
1711 * \brief Coded buffer segment.
1713 * #VACodedBufferSegment is an element of a linked list describing
1714 * some information on the coded buffer. The coded buffer segment
1715 * could contain either a single NAL unit, or more than one NAL unit.
1716 * It is recommended (but not required) to return a single NAL unit
1717 * in a coded buffer segment, and the implementation should set the
1718 * VA_CODED_BUF_STATUS_SINGLE_NALU status flag if that is the case.
1720 typedef struct _VACodedBufferSegment {
1722 * \brief Size of the data buffer in this segment (in bytes).
1725 /** \brief Bit offset into the data buffer where the video data starts. */
1726 unsigned int bit_offset;
1727 /** \brief Status set by the driver. See \c VA_CODED_BUF_STATUS_*. */
1728 unsigned int status;
1729 /** \brief Reserved for future use. */
1730 unsigned int reserved;
1731 /** \brief Pointer to the start of the data buffer. */
1734 * \brief Pointer to the next #VACodedBufferSegment element,
1735 * or \c NULL if there is none.
1738 } VACodedBufferSegment;
1741 * Map data store of the buffer into the client's address space
1742 * vaCreateBuffer() needs to be called with "data" set to NULL before
1743 * calling vaMapBuffer()
1745 * if buffer type is VAEncCodedBufferType, pbuf points to link-list of
1746 * VACodedBufferSegment, and the list is terminated if "next" is NULL
1748 VAStatus vaMapBuffer (
1750 VABufferID buf_id, /* in */
1751 void **pbuf /* out */
1755 * After client making changes to a mapped data store, it needs to
1756 * "Unmap" it to let the server know that the data is ready to be
1757 * consumed by the server
1759 VAStatus vaUnmapBuffer (
1761 VABufferID buf_id /* in */
1765 * After this call, the buffer is deleted and this buffer_id is no longer valid
1766 * Only call this if the buffer is not going to be passed to vaRenderBuffer
1768 VAStatus vaDestroyBuffer (
1770 VABufferID buffer_id
1774 Render (Decode) Pictures
1776 A picture represents either a frame or a field.
1778 The Begin/Render/End sequence sends the decode buffers to the server
1782 * Get ready to decode a picture to a target surface
1784 VAStatus vaBeginPicture (
1786 VAContextID context,
1787 VASurfaceID render_target
1791 * Send decode buffers to the server.
1792 * Buffers are automatically destroyed afterwards
1794 VAStatus vaRenderPicture (
1796 VAContextID context,
1797 VABufferID *buffers,
1802 * Make the end of rendering for a picture.
1803 * The server should start processing all pending operations for this
1804 * surface. This call is non-blocking. The client can start another
1805 * Begin/Render/End sequence on a different render target.
1807 VAStatus vaEndPicture (
1819 * This function blocks until all pending operations on the render target
1820 * have been completed. Upon return it is safe to use the render target for a
1821 * different picture.
1823 VAStatus vaSyncSurface (
1825 VASurfaceID render_target
1830 VASurfaceRendering = 1, /* Rendering in progress */
1831 VASurfaceDisplaying = 2, /* Displaying in progress (not safe to render into it) */
1832 /* this status is useful if surface is used as the source */
1834 VASurfaceReady = 4, /* not being rendered or displayed */
1835 VASurfaceSkipped = 8 /* Indicate a skipped frame during encode */
1839 * Find out any pending ops on the render target
1841 VAStatus vaQuerySurfaceStatus (
1843 VASurfaceID render_target,
1844 VASurfaceStatus *status /* out */
1849 VADecodeSliceMissing = 0,
1850 VADecodeMBError = 1,
1851 } VADecodeErrorType;
1854 * Client calls vaQuerySurfaceError with VA_STATUS_ERROR_DECODING_ERROR, server side returns
1855 * an array of structure VASurfaceDecodeMBErrors, and the array is terminated by setting status=-1
1857 typedef struct _VASurfaceDecodeMBErrors
1859 int status; /* 1 if hardware has returned detailed info below, -1 means this record is invalid */
1860 unsigned int start_mb; /* start mb address with errors */
1861 unsigned int end_mb; /* end mb address with errors */
1862 VADecodeErrorType decode_error_type;
1863 } VASurfaceDecodeMBErrors;
1866 * After the application gets VA_STATUS_ERROR_DECODING_ERROR after calling vaSyncSurface(),
1867 * it can call vaQuerySurfaceError to find out further details on the particular error.
1868 * VA_STATUS_ERROR_DECODING_ERROR should be passed in as "error_status",
1869 * upon the return, error_info will point to an array of _VASurfaceDecodeMBErrors structure,
1870 * which is allocated and filled by libVA with detailed information on the missing or error macroblocks.
1871 * The array is terminated if "status==-1" is detected.
1873 VAStatus vaQuerySurfaceError(
1875 VASurfaceID surface,
1876 VAStatus error_status,
1881 * Images and Subpictures
1882 * VAImage is used to either get the surface data to client memory, or
1883 * to copy image data in client memory to a surface.
1884 * Both images, subpictures and surfaces follow the same 2D coordinate system where origin
1885 * is at the upper left corner with positive X to the right and positive Y down
1887 #define VA_FOURCC(ch0, ch1, ch2, ch3) \
1888 ((unsigned long)(unsigned char) (ch0) | ((unsigned long)(unsigned char) (ch1) << 8) | \
1889 ((unsigned long)(unsigned char) (ch2) << 16) | ((unsigned long)(unsigned char) (ch3) << 24 ))
1891 /* a few common FourCCs */
1892 #define VA_FOURCC_NV12 0x3231564E
1893 #define VA_FOURCC_AI44 0x34344149
1894 #define VA_FOURCC_RGBA 0x41424752
1895 #define VA_FOURCC_BGRA 0x41524742
1896 #define VA_FOURCC_UYVY 0x59565955
1897 #define VA_FOURCC_YUY2 0x32595559
1898 #define VA_FOURCC_AYUV 0x56555941
1899 #define VA_FOURCC_NV11 0x3131564e
1900 #define VA_FOURCC_YV12 0x32315659
1901 #define VA_FOURCC_P208 0x38303250
1902 #define VA_FOURCC_IYUV 0x56555949
1903 #define VA_FOURCC_YV24 0x34325659
1904 #define VA_FOURCC_YV32 0x32335659
1907 #define VA_LSB_FIRST 1
1908 #define VA_MSB_FIRST 2
1910 typedef struct _VAImageFormat
1912 unsigned int fourcc;
1913 unsigned int byte_order; /* VA_LSB_FIRST, VA_MSB_FIRST */
1914 unsigned int bits_per_pixel;
1915 /* for RGB formats */
1916 unsigned int depth; /* significant bits per pixel */
1917 unsigned int red_mask;
1918 unsigned int green_mask;
1919 unsigned int blue_mask;
1920 unsigned int alpha_mask;
1923 typedef VAGenericID VAImageID;
1925 typedef struct _VAImage
1927 VAImageID image_id; /* uniquely identify this image */
1928 VAImageFormat format;
1929 VABufferID buf; /* image data buffer */
1931 * Image data will be stored in a buffer of type VAImageBufferType to facilitate
1932 * data store on the server side for optimal performance. The buffer will be
1933 * created by the CreateImage function, and proper storage allocated based on the image
1934 * size and format. This buffer is managed by the library implementation, and
1935 * accessed by the client through the buffer Map/Unmap functions.
1937 unsigned short width;
1938 unsigned short height;
1939 unsigned int data_size;
1940 unsigned int num_planes; /* can not be greater than 3 */
1942 * An array indicating the scanline pitch in bytes for each plane.
1943 * Each plane may have a different pitch. Maximum 3 planes for planar formats
1945 unsigned int pitches[3];
1947 * An array indicating the byte offset from the beginning of the image data
1948 * to the start of each plane.
1950 unsigned int offsets[3];
1952 /* The following fields are only needed for paletted formats */
1953 int num_palette_entries; /* set to zero for non-palette images */
1955 * Each component is one byte and entry_bytes indicates the number of components in
1956 * each entry (eg. 3 for YUV palette entries). set to zero for non-palette images
1960 * An array of ascii characters describing the order of the components within the bytes.
1961 * Only entry_bytes characters of the string are used.
1963 char component_order[4];
1966 /* Get maximum number of image formats supported by the implementation */
1967 int vaMaxNumImageFormats (
1972 * Query supported image formats
1973 * The caller must provide a "format_list" array that can hold at
1974 * least vaMaxNumImageFormats() entries. The actual number of formats
1975 * returned in "format_list" is returned in "num_formats".
1977 VAStatus vaQueryImageFormats (
1979 VAImageFormat *format_list, /* out */
1980 int *num_formats /* out */
1984 * Create a VAImage structure
1985 * The width and height fields returned in the VAImage structure may get
1986 * enlarged for some YUV formats. Upon return from this function,
1987 * image->buf has been created and proper storage allocated by the library.
1988 * The client can access the image through the Map/Unmap calls.
1990 VAStatus vaCreateImage (
1992 VAImageFormat *format,
1995 VAImage *image /* out */
1999 * Should call DestroyImage before destroying the surface it is bound to
2001 VAStatus vaDestroyImage (
2006 VAStatus vaSetImagePalette (
2010 * pointer to an array holding the palette data. The size of the array is
2011 * num_palette_entries * entry_bytes in size. The order of the components
2012 * in the palette is described by the component_order in VAImage struct
2014 unsigned char *palette
2018 * Retrive surface data into a VAImage
2019 * Image must be in a format supported by the implementation
2021 VAStatus vaGetImage (
2023 VASurfaceID surface,
2024 int x, /* coordinates of the upper left source pixel */
2026 unsigned int width, /* width and height of the region */
2027 unsigned int height,
2032 * Copy data from a VAImage to a surface
2033 * Image must be in a format supported by the implementation
2034 * Returns a VA_STATUS_ERROR_SURFACE_BUSY if the surface
2035 * shouldn't be rendered into when this is called
2037 VAStatus vaPutImage (
2039 VASurfaceID surface,
2043 unsigned int src_width,
2044 unsigned int src_height,
2047 unsigned int dest_width,
2048 unsigned int dest_height
2052 * Derive an VAImage from an existing surface.
2053 * This interface will derive a VAImage and corresponding image buffer from
2054 * an existing VA Surface. The image buffer can then be mapped/unmapped for
2055 * direct CPU access. This operation is only possible on implementations with
2056 * direct rendering capabilities and internal surface formats that can be
2057 * represented with a VAImage. When the operation is not possible this interface
2058 * will return VA_STATUS_ERROR_OPERATION_FAILED. Clients should then fall back
2059 * to using vaCreateImage + vaPutImage to accomplish the same task in an
2062 * Implementations should only return success when the resulting image buffer
2063 * would be useable with vaMap/Unmap.
2065 * When directly accessing a surface special care must be taken to insure
2066 * proper synchronization with the graphics hardware. Clients should call
2067 * vaQuerySurfaceStatus to insure that a surface is not the target of concurrent
2068 * rendering or currently being displayed by an overlay.
2070 * Additionally nothing about the contents of a surface should be assumed
2071 * following a vaPutSurface. Implementations are free to modify the surface for
2072 * scaling or subpicture blending within a call to vaPutImage.
2074 * Calls to vaPutImage or vaGetImage using the same surface from which the image
2075 * has been derived will return VA_STATUS_ERROR_SURFACE_BUSY. vaPutImage or
2076 * vaGetImage with other surfaces is supported.
2078 * An image created with vaDeriveImage should be freed with vaDestroyImage. The
2079 * image and image buffer structures will be destroyed; however, the underlying
2080 * surface will remain unchanged until freed with vaDestroySurfaces.
2082 VAStatus vaDeriveImage (
2084 VASurfaceID surface,
2085 VAImage *image /* out */
2090 * Subpicture is a special type of image that can be blended
2091 * with a surface during vaPutSurface(). Subpicture can be used to render
2092 * DVD sub-titles or closed captioning text etc.
2095 typedef VAGenericID VASubpictureID;
2097 /* Get maximum number of subpicture formats supported by the implementation */
2098 int vaMaxNumSubpictureFormats (
2102 /* flags for subpictures */
2103 #define VA_SUBPICTURE_CHROMA_KEYING 0x0001
2104 #define VA_SUBPICTURE_GLOBAL_ALPHA 0x0002
2105 #define VA_SUBPICTURE_DESTINATION_IS_SCREEN_COORD 0x0004
2107 * Query supported subpicture formats
2108 * The caller must provide a "format_list" array that can hold at
2109 * least vaMaxNumSubpictureFormats() entries. The flags arrary holds the flag
2110 * for each format to indicate additional capabilities for that format. The actual
2111 * number of formats returned in "format_list" is returned in "num_formats".
2112 * flags: returned value to indicate addtional capabilities
2113 * VA_SUBPICTURE_CHROMA_KEYING - supports chroma-keying
2114 * VA_SUBPICTURE_GLOBAL_ALPHA - supports global alpha
2115 * VA_SUBPICTURE_DESTINATION_IS_SCREEN_COORD - supports unscaled screen relative subpictures for On Screen Display
2118 VAStatus vaQuerySubpictureFormats (
2120 VAImageFormat *format_list, /* out */
2121 unsigned int *flags, /* out */
2122 unsigned int *num_formats /* out */
2126 * Subpictures are created with an image associated.
2128 VAStatus vaCreateSubpicture (
2131 VASubpictureID *subpicture /* out */
2135 * Destroy the subpicture before destroying the image it is assocated to
2137 VAStatus vaDestroySubpicture (
2139 VASubpictureID subpicture
2143 * Bind an image to the subpicture. This image will now be associated with
2144 * the subpicture instead of the one at creation.
2146 VAStatus vaSetSubpictureImage (
2148 VASubpictureID subpicture,
2153 * If chromakey is enabled, then the area where the source value falls within
2154 * the chromakey [min, max] range is transparent
2155 * The chromakey component format is the following:
2156 * For RGB: [0:7] Red [8:15] Blue [16:23] Green
2157 * For YUV: [0:7] V [8:15] U [16:23] Y
2158 * The chromakey mask can be used to mask out certain components for chromakey
2161 VAStatus vaSetSubpictureChromakey (
2163 VASubpictureID subpicture,
2164 unsigned int chromakey_min,
2165 unsigned int chromakey_max,
2166 unsigned int chromakey_mask
2170 * Global alpha value is between 0 and 1. A value of 1 means fully opaque and
2171 * a value of 0 means fully transparent. If per-pixel alpha is also specified then
2172 * the overall alpha is per-pixel alpha multiplied by the global alpha
2174 VAStatus vaSetSubpictureGlobalAlpha (
2176 VASubpictureID subpicture,
2181 * vaAssociateSubpicture associates the subpicture with target_surfaces.
2182 * It defines the region mapping between the subpicture and the target
2183 * surfaces through source and destination rectangles (with the same width and height).
2184 * Both will be displayed at the next call to vaPutSurface. Additional
2185 * associations before the call to vaPutSurface simply overrides the association.
2187 VAStatus vaAssociateSubpicture (
2189 VASubpictureID subpicture,
2190 VASurfaceID *target_surfaces,
2192 short src_x, /* upper left offset in subpicture */
2194 unsigned short src_width,
2195 unsigned short src_height,
2196 short dest_x, /* upper left offset in surface */
2198 unsigned short dest_width,
2199 unsigned short dest_height,
2201 * whether to enable chroma-keying, global-alpha, or screen relative mode
2202 * see VA_SUBPICTURE_XXX values
2208 * vaDeassociateSubpicture removes the association of the subpicture with target_surfaces.
2210 VAStatus vaDeassociateSubpicture (
2212 VASubpictureID subpicture,
2213 VASurfaceID *target_surfaces,
2217 typedef struct _VARectangle
2221 unsigned short width;
2222 unsigned short height;
2226 * Display attributes
2227 * Display attributes are used to control things such as contrast, hue, saturation,
2228 * brightness etc. in the rendering process. The application can query what
2229 * attributes are supported by the driver, and then set the appropriate attributes
2230 * before calling vaPutSurface()
2232 /* PowerVR IEP Lite attributes */
2235 VADISPLAYATTRIB_BLE_OFF = 0x00,
2236 VADISPLAYATTRIB_BLE_LOW,
2237 VADISPLAYATTRIB_BLE_MEDIUM,
2238 VADISPLAYATTRIB_BLE_HIGH,
2239 VADISPLAYATTRIB_BLE_NONE,
2240 } VADisplayAttribBLEMode;
2242 /* attribute value for VADisplayAttribRotation */
2243 #define VA_ROTATION_NONE 0x00000000
2244 #define VA_ROTATION_90 0x00000001
2245 #define VA_ROTATION_180 0x00000002
2246 #define VA_ROTATION_270 0x00000003
2248 /* attribute value for VADisplayAttribOutOfLoopDeblock */
2249 #define VA_OOL_DEBLOCKING_FALSE 0x00000000
2250 #define VA_OOL_DEBLOCKING_TRUE 0x00000001
2253 #define VA_RENDER_MODE_UNDEFINED 0
2254 #define VA_RENDER_MODE_LOCAL_OVERLAY 1
2255 #define VA_RENDER_MODE_LOCAL_GPU 2
2256 #define VA_RENDER_MODE_EXTERNAL_OVERLAY 4
2257 #define VA_RENDER_MODE_EXTERNAL_GPU 8
2260 #define VA_RENDER_DEVICE_UNDEFINED 0
2261 #define VA_RENDER_DEVICE_LOCAL 1
2262 #define VA_RENDER_DEVICE_EXTERNAL 2
2264 /* Currently defined display attribute types */
2267 VADisplayAttribBrightness = 0,
2268 VADisplayAttribContrast = 1,
2269 VADisplayAttribHue = 2,
2270 VADisplayAttribSaturation = 3,
2271 /* client can specifiy a background color for the target window
2272 * the new feature of video conference,
2273 * the uncovered area of the surface is filled by this color
2274 * also it will blend with the decoded video color
2276 VADisplayAttribBackgroundColor = 4,
2278 * this is a gettable only attribute. For some implementations that use the
2279 * hardware overlay, after PutSurface is called, the surface can not be
2280 * re-used until after the subsequent PutSurface call. If this is the case
2281 * then the value for this attribute will be set to 1 so that the client
2282 * will not attempt to re-use the surface right after returning from a call
2285 * Don't use it, use flag VASurfaceDisplaying of vaQuerySurfaceStatus since
2286 * driver may use overlay or GPU alternatively
2288 VADisplayAttribDirectSurface = 5,
2289 VADisplayAttribRotation = 6,
2290 VADisplayAttribOutofLoopDeblock = 7,
2292 /* PowerVR IEP Lite specific attributes */
2293 VADisplayAttribBLEBlackMode = 8,
2294 VADisplayAttribBLEWhiteMode = 9,
2295 VADisplayAttribBlueStretch = 10,
2296 VADisplayAttribSkinColorCorrection = 11,
2298 * For type VADisplayAttribCSCMatrix, "value" field is a pointer to the color
2299 * conversion matrix. Each element in the matrix is float-point
2301 VADisplayAttribCSCMatrix = 12,
2302 /* specify the constant color used to blend with video surface
2303 * Cd = Cv*Cc*Ac + Cb *(1 - Ac) C means the constant RGB
2304 * d: the final color to overwrite into the frame buffer
2305 * v: decoded video after color conversion,
2306 * c: video color specified by VADisplayAttribBlendColor
2307 * b: background color of the drawable
2309 VADisplayAttribBlendColor = 13,
2311 * Indicate driver to skip painting color key or not.
2312 * only applicable if the render is overlay
2314 VADisplayAttribOverlayAutoPaintColorKey = 14,
2316 * customized overlay color key, the format is RGB888
2317 * [23:16] = Red, [15:08] = Green, [07:00] = Blue.
2319 VADisplayAttribOverlayColorKey = 15,
2321 * The hint for the implementation of vaPutSurface
2322 * normally, the driver could use an overlay or GPU to render the surface on the screen
2323 * this flag provides APP the flexibity to switch the render dynamically
2325 VADisplayAttribRenderMode = 16,
2327 * specify if vaPutSurface needs to render into specified monitors
2328 * one example is that one external monitor (e.g. HDMI) is enabled,
2329 * but the window manager is not aware of it, and there is no associated drawable
2331 VADisplayAttribRenderDevice = 17,
2333 * specify vaPutSurface render area if there is no drawable on the monitor
2335 VADisplayAttribRenderRect = 18,
2336 } VADisplayAttribType;
2338 /* flags for VADisplayAttribute */
2339 #define VA_DISPLAY_ATTRIB_NOT_SUPPORTED 0x0000
2340 #define VA_DISPLAY_ATTRIB_GETTABLE 0x0001
2341 #define VA_DISPLAY_ATTRIB_SETTABLE 0x0002
2343 typedef struct _VADisplayAttribute
2345 VADisplayAttribType type;
2348 int value; /* used by the set/get attribute functions */
2349 /* flags can be VA_DISPLAY_ATTRIB_GETTABLE or VA_DISPLAY_ATTRIB_SETTABLE or OR'd together */
2351 } VADisplayAttribute;
2353 /* Get maximum number of display attributs supported by the implementation */
2354 int vaMaxNumDisplayAttributes (
2359 * Query display attributes
2360 * The caller must provide a "attr_list" array that can hold at
2361 * least vaMaxNumDisplayAttributes() entries. The actual number of attributes
2362 * returned in "attr_list" is returned in "num_attributes".
2364 VAStatus vaQueryDisplayAttributes (
2366 VADisplayAttribute *attr_list, /* out */
2367 int *num_attributes /* out */
2371 * Get display attributes
2372 * This function returns the current attribute values in "attr_list".
2373 * Only attributes returned with VA_DISPLAY_ATTRIB_GETTABLE set in the "flags" field
2374 * from vaQueryDisplayAttributes() can have their values retrieved.
2376 VAStatus vaGetDisplayAttributes (
2378 VADisplayAttribute *attr_list, /* in/out */
2383 * Set display attributes
2384 * Only attributes returned with VA_DISPLAY_ATTRIB_SETTABLE set in the "flags" field
2385 * from vaQueryDisplayAttributes() can be set. If the attribute is not settable or
2386 * the value is out of range, the function returns VA_STATUS_ERROR_ATTR_NOT_SUPPORTED
2388 VAStatus vaSetDisplayAttributes (
2390 VADisplayAttribute *attr_list,