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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.
74 #include <va/va_version.h>
83 The VA API is intended to provide an interface between a video decode/encode/display
84 application (client) and a hardware accelerator (server), to off-load
85 video decode/encode/display operations from the host to the hardware accelerator at various
88 The basic operation steps are:
90 - Negotiate a mutually acceptable configuration with the server to lock
91 down profile, entrypoints, and other attributes that will not change on
92 a frame-by-frame basis.
93 - Create a decode context which represents a "virtualized" hardware decode
95 - Get and fill decode buffers with picture level, slice level and macroblock
96 level data (depending on entrypoints)
97 - Pass the decode buffers to the server to decode the current frame
99 Initialization & Configuration Management
101 - Find out supported profiles
102 - Find out entrypoints for a given profile
103 - Find out configuration attributes for a given profile/entrypoint pair
104 - Create a configuration for use by the decoder
108 typedef void* VADisplay; /* window system dependent */
110 typedef int VAStatus; /* Return status type from functions */
111 /* Values for the return status */
112 #define VA_STATUS_SUCCESS 0x00000000
113 #define VA_STATUS_ERROR_OPERATION_FAILED 0x00000001
114 #define VA_STATUS_ERROR_ALLOCATION_FAILED 0x00000002
115 #define VA_STATUS_ERROR_INVALID_DISPLAY 0x00000003
116 #define VA_STATUS_ERROR_INVALID_CONFIG 0x00000004
117 #define VA_STATUS_ERROR_INVALID_CONTEXT 0x00000005
118 #define VA_STATUS_ERROR_INVALID_SURFACE 0x00000006
119 #define VA_STATUS_ERROR_INVALID_BUFFER 0x00000007
120 #define VA_STATUS_ERROR_INVALID_IMAGE 0x00000008
121 #define VA_STATUS_ERROR_INVALID_SUBPICTURE 0x00000009
122 #define VA_STATUS_ERROR_ATTR_NOT_SUPPORTED 0x0000000a
123 #define VA_STATUS_ERROR_MAX_NUM_EXCEEDED 0x0000000b
124 #define VA_STATUS_ERROR_UNSUPPORTED_PROFILE 0x0000000c
125 #define VA_STATUS_ERROR_UNSUPPORTED_ENTRYPOINT 0x0000000d
126 #define VA_STATUS_ERROR_UNSUPPORTED_RT_FORMAT 0x0000000e
127 #define VA_STATUS_ERROR_UNSUPPORTED_BUFFERTYPE 0x0000000f
128 #define VA_STATUS_ERROR_SURFACE_BUSY 0x00000010
129 #define VA_STATUS_ERROR_FLAG_NOT_SUPPORTED 0x00000011
130 #define VA_STATUS_ERROR_INVALID_PARAMETER 0x00000012
131 #define VA_STATUS_ERROR_RESOLUTION_NOT_SUPPORTED 0x00000013
132 #define VA_STATUS_ERROR_UNIMPLEMENTED 0x00000014
133 #define VA_STATUS_ERROR_SURFACE_IN_DISPLAYING 0x00000015
134 #define VA_STATUS_ERROR_INVALID_IMAGE_FORMAT 0x00000016
135 #define VA_STATUS_ERROR_DECODING_ERROR 0x00000017
136 #define VA_STATUS_ERROR_ENCODING_ERROR 0x00000018
137 #define VA_STATUS_ERROR_UNKNOWN 0xFFFFFFFF
139 /* De-interlacing flags for vaPutSurface() */
140 #define VA_FRAME_PICTURE 0x00000000
141 #define VA_TOP_FIELD 0x00000001
142 #define VA_BOTTOM_FIELD 0x00000002
145 * Enabled the positioning/cropping/blending feature:
146 * 1, specify the video playback position in the isurface
147 * 2, specify the cropping info for video playback
148 * 3, encoded video will blend with background color
150 #define VA_ENABLE_BLEND 0x00000004 /* video area blend with the constant color */
153 * Clears the drawable with background color.
154 * for hardware overlay based implementation this flag
155 * can be used to turn off the overlay
157 #define VA_CLEAR_DRAWABLE 0x00000008
159 /* Color space conversion flags for vaPutSurface() */
160 #define VA_SRC_BT601 0x00000010
161 #define VA_SRC_BT709 0x00000020
162 #define VA_SRC_SMPTE_240 0x00000040
164 /* Scaling flags for vaPutSurface() */
165 #define VA_FILTER_SCALING_DEFAULT 0x00000000
166 #define VA_FILTER_SCALING_FAST 0x00000100
167 #define VA_FILTER_SCALING_HQ 0x00000200
168 #define VA_FILTER_SCALING_NL_ANAMORPHIC 0x00000300
169 #define VA_FILTER_SCALING_MASK 0x00000f00
172 * Returns a short english description of error_status
174 const char *vaErrorStr(VAStatus error_status);
178 * A display must be obtained by calling vaGetDisplay() before calling
179 * vaInitialize() and other functions. This connects the API to the
180 * native window system.
181 * For X Windows, native_dpy would be from XOpenDisplay()
183 typedef void* VANativeDisplay; /* window system dependent */
186 * Returns a suitable VADisplay for VA API
188 VADisplay vaGetDisplay (
192 int vaDisplayIsValid(VADisplay dpy);
195 * Initialize the library
197 VAStatus vaInitialize (
199 int *major_version, /* out */
200 int *minor_version /* out */
204 * After this call, all library internal resources will be cleaned up
206 VAStatus vaTerminate (
211 * vaQueryVendorString returns a pointer to a zero-terminated string
212 * describing some aspects of the VA implemenation on a specific
213 * hardware accelerator. The format of the returned string is vendor
214 * specific and at the discretion of the implementer.
215 * e.g. for the Intel GMA500 implementation, an example would be:
216 * "Intel GMA500 - 2.0.0.32L.0005"
218 const char *vaQueryVendorString (
222 typedef int (*VAPrivFunc)();
225 * Return a function pointer given a function name in the library.
226 * This allows private interfaces into the library
228 VAPrivFunc vaGetLibFunc (
233 /* Currently defined profiles */
236 VAProfileMPEG2Simple = 0,
237 VAProfileMPEG2Main = 1,
238 VAProfileMPEG4Simple = 2,
239 VAProfileMPEG4AdvancedSimple = 3,
240 VAProfileMPEG4Main = 4,
241 VAProfileH264Baseline = 5,
242 VAProfileH264Main = 6,
243 VAProfileH264High = 7,
244 VAProfileVC1Simple = 8,
245 VAProfileVC1Main = 9,
246 VAProfileVC1Advanced = 10,
247 VAProfileH263Baseline = 11,
248 VAProfileJPEGBaseline = 12,
249 VAProfileH264ConstrainedBaseline = 13
253 * Currently defined entrypoints
259 VAEntrypointIDCT = 3,
260 VAEntrypointMoComp = 4,
261 VAEntrypointDeblocking = 5,
262 VAEntrypointEncSlice = 6, /* slice level encode */
263 VAEntrypointEncPicture = 7 /* pictuer encode, JPEG, etc */
266 /* Currently defined configuration attribute types */
269 VAConfigAttribRTFormat = 0,
270 VAConfigAttribSpatialResidual = 1,
271 VAConfigAttribSpatialClipping = 2,
272 VAConfigAttribIntraResidual = 3,
273 VAConfigAttribEncryption = 4,
274 VAConfigAttribRateControl = 5
275 } VAConfigAttribType;
278 * Configuration attributes
279 * If there is more than one value for an attribute, a default
280 * value will be assigned to the attribute if the client does not
281 * specify the attribute when creating a configuration
283 typedef struct _VAConfigAttrib {
284 VAConfigAttribType type;
285 unsigned int value; /* OR'd flags (bits) for this attribute */
288 /* attribute value for VAConfigAttribRTFormat */
289 #define VA_RT_FORMAT_YUV420 0x00000001
290 #define VA_RT_FORMAT_YUV422 0x00000002
291 #define VA_RT_FORMAT_YUV444 0x00000004
292 #define VA_RT_FORMAT_PROTECTED 0x80000000
294 /* attribute value for VAConfigAttribRateControl */
295 #define VA_RC_NONE 0x00000001
296 #define VA_RC_CBR 0x00000002
297 #define VA_RC_VBR 0x00000004
298 #define VA_RC_VCM 0x00000008 /* video conference mode */
301 * if an attribute is not applicable for a given
302 * profile/entrypoint pair, then set the value to the following
304 #define VA_ATTRIB_NOT_SUPPORTED 0x80000000
306 /* Get maximum number of profiles supported by the implementation */
307 int vaMaxNumProfiles (
311 /* Get maximum number of entrypoints supported by the implementation */
312 int vaMaxNumEntrypoints (
316 /* Get maximum number of attributs supported by the implementation */
317 int vaMaxNumConfigAttributes (
322 * Query supported profiles
323 * The caller must provide a "profile_list" array that can hold at
324 * least vaMaxNumProfile() entries. The actual number of profiles
325 * returned in "profile_list" is returned in "num_profile".
327 VAStatus vaQueryConfigProfiles (
329 VAProfile *profile_list, /* out */
330 int *num_profiles /* out */
334 * Query supported entrypoints for a given profile
335 * The caller must provide an "entrypoint_list" array that can hold at
336 * least vaMaxNumEntrypoints() entries. The actual number of entrypoints
337 * returned in "entrypoint_list" is returned in "num_entrypoints".
339 VAStatus vaQueryConfigEntrypoints (
342 VAEntrypoint *entrypoint_list, /* out */
343 int *num_entrypoints /* out */
347 * Get attributes for a given profile/entrypoint pair
348 * The caller must provide an "attrib_list" with all attributes to be
349 * retrieved. Upon return, the attributes in "attrib_list" have been
350 * updated with their value. Unknown attributes or attributes that are
351 * not supported for the given profile/entrypoint pair will have their
352 * value set to VA_ATTRIB_NOT_SUPPORTED
354 VAStatus vaGetConfigAttributes (
357 VAEntrypoint entrypoint,
358 VAConfigAttrib *attrib_list, /* in/out */
362 /* Generic ID type, can be re-typed for specific implementation */
363 typedef unsigned int VAGenericID;
365 typedef VAGenericID VAConfigID;
368 * Create a configuration for the decode pipeline
369 * it passes in the attribute list that specifies the attributes it cares
370 * about, with the rest taking default values.
372 VAStatus vaCreateConfig (
375 VAEntrypoint entrypoint,
376 VAConfigAttrib *attrib_list,
378 VAConfigID *config_id /* out */
382 * Free resources associdated with a given config
384 VAStatus vaDestroyConfig (
390 * Query all attributes for a given configuration
391 * The profile of the configuration is returned in "profile"
392 * The entrypoint of the configuration is returned in "entrypoint"
393 * The caller must provide an "attrib_list" array that can hold at least
394 * vaMaxNumConfigAttributes() entries. The actual number of attributes
395 * returned in "attrib_list" is returned in "num_attribs"
397 VAStatus vaQueryConfigAttributes (
399 VAConfigID config_id,
400 VAProfile *profile, /* out */
401 VAEntrypoint *entrypoint, /* out */
402 VAConfigAttrib *attrib_list,/* out */
403 int *num_attribs /* out */
408 * Contexts and Surfaces
410 * Context represents a "virtual" video decode pipeline. Surfaces are render
411 * targets for a given context. The data in the surfaces are not accessible
412 * to the client and the internal data format of the surface is implementatin
415 * Surfaces will be bound to a context when the context is created. Once
416 * a surface is bound to a given context, it can not be used to create
417 * another context. The association is removed when the context is destroyed
419 * Both contexts and surfaces are identified by unique IDs and its
420 * implementation specific internals are kept opaque to the clients
423 typedef VAGenericID VAContextID;
425 typedef VAGenericID VASurfaceID;
427 #define VA_INVALID_ID 0xffffffff
428 #define VA_INVALID_SURFACE VA_INVALID_ID
431 * vaCreateSurfaces - Create an array of surfaces used for decode and display
433 * width: surface width
434 * height: surface height
435 * format: VA_RT_FORMAT_YUV420, VA_RT_FORMAT_YUV422 or VA_RT_FORMAT_YUV444
436 * num_surfaces: number of surfaces to be created
437 * surfaces: array of surfaces created upon return
439 VAStatus vaCreateSurfaces (
445 VASurfaceID *surfaces /* out */
450 * vaDestroySurfaces - Destroy resources associated with surfaces.
451 * Surfaces can only be destroyed after the context associated has been
454 * surfaces: array of surfaces to destroy
455 * num_surfaces: number of surfaces in the array to be destroyed.
457 VAStatus vaDestroySurfaces (
459 VASurfaceID *surfaces,
463 #define VA_PROGRESSIVE 0x1
465 * vaCreateContext - Create a context
467 * config_id: configuration for the context
468 * picture_width: coded picture width
469 * picture_height: coded picture height
470 * flag: any combination of the following:
471 * VA_PROGRESSIVE (only progressive frame pictures in the sequence when set)
472 * render_targets: render targets (surfaces) tied to the context
473 * num_render_targets: number of render targets in the above array
474 * context: created context id upon return
476 VAStatus vaCreateContext (
478 VAConfigID config_id,
482 VASurfaceID *render_targets,
483 int num_render_targets,
484 VAContextID *context /* out */
488 * vaDestroyContext - Destroy a context
490 * context: context to be destroyed
492 VAStatus vaDestroyContext (
499 * Buffers are used to pass various types of data from the
500 * client to the server. The server maintains a data store
501 * for each buffer created, and the client idenfies a buffer
502 * through a unique buffer id assigned by the server.
505 typedef VAGenericID VABufferID;
509 VAPictureParameterBufferType = 0,
510 VAIQMatrixBufferType = 1,
511 VABitPlaneBufferType = 2,
512 VASliceGroupMapBufferType = 3,
513 VASliceParameterBufferType = 4,
514 VASliceDataBufferType = 5,
515 VAMacroblockParameterBufferType = 6,
516 VAResidualDataBufferType = 7,
517 VADeblockingParameterBufferType = 8,
518 VAImageBufferType = 9,
519 VAProtectedSliceDataBufferType = 10,
520 VAQMatrixBufferType = 11,
521 VAHuffmanTableBufferType = 12,
523 /* Following are encode buffer types */
524 VAEncCodedBufferType = 21,
525 VAEncSequenceParameterBufferType = 22,
526 VAEncPictureParameterBufferType = 23,
527 VAEncSliceParameterBufferType = 24,
528 VAEncH264VUIBufferType = 25,
529 VAEncH264SEIBufferType = 26,
530 VAEncMiscParameterBufferType = 27,
531 VABufferTypeMax = 0xff
536 VAEncMiscParameterTypeFrameRate = 0,
537 VAEncMiscParameterTypeRateControl = 1,
538 VAEncMiscParameterTypeMaxSliceSize = 2,
539 VAEncMiscParameterTypeAIR = 3,
540 } VAEncMiscParameterType;
543 * For application, e.g. set a new bitrate
545 * VAEncMiscParameterBuffer *misc_param;
546 * VAEncMiscParameterRateControl *misc_rate_ctrl;
548 * vaCreateBuffer(dpy, context, VAEncMiscParameterBufferType,
549 * sizeof(VAEncMiscParameterBuffer) + sizeof(VAEncMiscParameterRateControl),
552 * vaMapBuffer(dpy,buf_id,(void **)&misc_param);
553 * misc_param->type = VAEncMiscParameterTypeRateControl;
554 * misc_rate_ctrl= (VAEncMiscParameterRateControl *)misc_param->data;
555 * misc_rate_ctrl->bits_per_second = 6400000;
556 * vaUnmapBuffer(dpy, buf_id);
557 * vaRenderPicture(dpy, context, &buf_id, 1);
559 typedef struct _VAEncMiscParameterBuffer
561 VAEncMiscParameterType type;
562 unsigned int data[0];
563 } VAEncMiscParameterBuffer;
565 typedef struct _VAEncMiscParameterRateControl
567 unsigned int bits_per_second; /* this is the maximum bit-rate to be constrained by the rate control implementation */
568 unsigned int target_percentage; /* this is the bit-rate the rate control is targeting, as a percentage of the maximum bit-rate */
569 /* for example if target_percentage is 95 then the rate control will target a bit-rate that is */
570 /* 95% of the maximum bit-rate */
571 unsigned int window_size; /* windows size in milliseconds. For example if this is set to 500, then the rate control will guarantee the */
572 /* target bit-rate over a 500 ms window */
573 unsigned int initial_qp; /* initial QP at I frames */
575 } VAEncMiscParameterRateControl;
577 typedef struct _VAEncMiscParameterFrameRate
579 unsigned int framerate;
580 } VAEncMiscParameterFrameRate;
583 * Allow a maximum slice size to be specified (in bits).
584 * The encoder will attempt to make sure that individual slices do not exceed this size
585 * Or to signal applicate if the slice size exceed this size, see "status" of VACodedBufferSegment
587 typedef struct _VAEncMiscParameterMaxSliceSize
589 unsigned int max_slice_size;
590 } VAEncMiscParameterMaxSliceSize;
592 typedef struct _VAEncMiscParameterAIR
594 unsigned int air_num_mbs;
595 unsigned int air_threshold;
596 unsigned int air_auto; /* if set to 1 then hardware auto-tune the AIR threshold */
597 } VAEncMiscParameterAIR;
601 * There will be cases where the bitstream buffer will not have enough room to hold
602 * the data for the entire slice, and the following flags will be used in the slice
603 * parameter to signal to the server for the possible cases.
604 * If a slice parameter buffer and slice data buffer pair is sent to the server with
605 * the slice data partially in the slice data buffer (BEGIN and MIDDLE cases below),
606 * then a slice parameter and data buffer needs to be sent again to complete this slice.
608 #define VA_SLICE_DATA_FLAG_ALL 0x00 /* whole slice is in the buffer */
609 #define VA_SLICE_DATA_FLAG_BEGIN 0x01 /* The beginning of the slice is in the buffer but the end if not */
610 #define VA_SLICE_DATA_FLAG_MIDDLE 0x02 /* Neither beginning nor end of the slice is in the buffer */
611 #define VA_SLICE_DATA_FLAG_END 0x04 /* end of the slice is in the buffer */
613 /* Codec-independent Slice Parameter Buffer base */
614 typedef struct _VASliceParameterBufferBase
616 unsigned int slice_data_size; /* number of bytes in the slice data buffer for this slice */
617 unsigned int slice_data_offset; /* the offset to the first byte of slice data */
618 unsigned int slice_data_flag; /* see VA_SLICE_DATA_FLAG_XXX definitions */
619 } VASliceParameterBufferBase;
622 /****************************
623 * JEPG data structure
624 ***************************/
625 typedef struct _VAQMatrixBufferJPEG
627 int load_lum_quantiser_matrix;
628 int load_chroma_quantiser_matrix;
629 unsigned char lum_quantiser_matrix[64];
630 unsigned char chroma_quantiser_matrix[64];
631 } VAQMatrixBufferJPEG;
633 typedef struct _VAEncPictureParameterBufferJPEG
635 VASurfaceID reconstructed_picture;
636 unsigned short picture_width;
637 unsigned short picture_height;
638 VABufferID coded_buf;
639 } VAEncPictureParameterBufferJPEG;
641 /* data struct for JPEG decoding */
643 /* Quantization table */
644 typedef struct _VAIQMatrixBufferJPEG
646 int precision[4]; /* valid value: 0(8-bits) , 1(16-bits), precision[Tq](Tq=0,1,2,3)
647 * specifies precision for destination Tq
649 unsigned char quantiser_matrix[4][128]; /* quantiser_matrix[Tq](Tq=0,1,2,3) specifies a
650 * quantization table for destination Tq in zig-zag
651 * scan order. Only the first 64 bytes are valid for each
654 } VAIQMatrixBufferJPEG;
656 #define VA_JPEG_SOF0 0xC0
657 #define VA_JPEG_SOF1 0xC1
658 #define VA_JPEG_SOF2 0xC2
659 #define VA_JPEG_SOF3 0xC3
660 #define VA_JPEG_SOF5 0xC5
661 #define VA_JPEG_SOF6 0xC6
662 #define VA_JPEG_SOF7 0xC7
663 #define VA_JPEG_SOF9 0xC9
664 #define VA_JPEG_SOF10 0xCA
665 #define VA_JPEG_SOF11 0xCB
666 #define VA_JPEG_SOF13 0xCD
667 #define VA_JPEG_SOF14 0xCE
669 #define VA_JPEG_COMPONENT_ID_Y 1
670 #define VA_JPEG_COMPONENT_ID_U 2
671 #define VA_JPEG_COMPONENT_ID_V 3
672 #define VA_JPEG_COMPONENT_ID_A 4
674 /* JPEG Picture Parameter Buffer */
675 typedef struct _VAPictureParameterBufferJPEG
677 unsigned int type; /* SOFn */
678 unsigned int sample_precision;
679 unsigned int image_width;
680 unsigned int image_height;
681 unsigned int num_components;
683 unsigned char component_id;
684 unsigned char h_sampling_factor;
685 unsigned char v_sampling_factor;
686 unsigned char quantiser_table_selector; /* Tqi, quantization table destination selector */
689 /* ROI (region of interest), for JPEG2000 */
699 } VAPictureParameterBufferJPEG;
701 typedef struct _VAHuffmanTableBufferJPEG
704 unsigned char dc_bits[16]; /* Number of Huffman codes of length i for DC */
705 unsigned char dc_huffval[20]; /* Value associated with each Huffman code for DC */
706 unsigned char ac_bits[16]; /* Number of Huffman codes of length i for AC */
707 unsigned char ac_huffval[256]; /* Value associated with each Huffman code for AC */
708 } huffman_table[4]; /* Up to 4 huffman tables, huffman_table[Th](Th=0,1,2,3)
709 * specifies a buffman table for destination Th.
712 } VAHuffmanTableBufferJPEG;
714 /* JPEG Scan Parameter Buffer, The Scan of is similar to
715 * the Slice of other codecs */
716 typedef struct _VASliceParameterBufferJPEG
718 unsigned int slice_data_size; /* number of bytes in the slice data buffer for this slice */
719 unsigned int slice_data_offset; /* the offset to the first byte of slice data */
720 unsigned int slice_data_flag; /* see VA_SLICE_DATA_FLAG_XXX definitions */
721 unsigned int slice_horizontal_position;
722 unsigned int slice_vertical_position;
724 unsigned int num_components;
726 int component_id; /* Csj, it must match one of component_ids specified in VAPictureParameterBufferJPEG */
727 int dc_selector; /* Tdj(0,1,2,3) */
728 int ac_selector; /* Taj(0,1,2,3) */
731 int restart_interval; /* specifies the number of MCUs in restart interval, defined in DRI marker */
732 int num_mcus; /* indicates the number of MCUs in a scan */
733 } VASliceParameterBufferJPEG;
735 /****************************
736 * MPEG-2 data structures
737 ****************************/
739 /* MPEG-2 Picture Parameter Buffer */
741 * For each frame or field, and before any slice data, a single
742 * picture parameter buffer must be send.
744 typedef struct _VAPictureParameterBufferMPEG2
746 unsigned short horizontal_size;
747 unsigned short vertical_size;
748 VASurfaceID forward_reference_picture;
749 VASurfaceID backward_reference_picture;
750 /* meanings of the following fields are the same as in the standard */
751 int picture_coding_type;
752 int f_code; /* pack all four fcode into this */
755 unsigned int intra_dc_precision : 2;
756 unsigned int picture_structure : 2;
757 unsigned int top_field_first : 1;
758 unsigned int frame_pred_frame_dct : 1;
759 unsigned int concealment_motion_vectors : 1;
760 unsigned int q_scale_type : 1;
761 unsigned int intra_vlc_format : 1;
762 unsigned int alternate_scan : 1;
763 unsigned int repeat_first_field : 1;
764 unsigned int progressive_frame : 1;
765 unsigned int is_first_field : 1; /* indicate whether the current field
766 * is the first field for field picture
770 } picture_coding_extension;
771 } VAPictureParameterBufferMPEG2;
773 /* MPEG-2 Inverse Quantization Matrix Buffer */
774 typedef struct _VAIQMatrixBufferMPEG2
776 int load_intra_quantiser_matrix;
777 int load_non_intra_quantiser_matrix;
778 int load_chroma_intra_quantiser_matrix;
779 int load_chroma_non_intra_quantiser_matrix;
780 unsigned char intra_quantiser_matrix[64];
781 unsigned char non_intra_quantiser_matrix[64];
782 unsigned char chroma_intra_quantiser_matrix[64];
783 unsigned char chroma_non_intra_quantiser_matrix[64];
784 } VAIQMatrixBufferMPEG2;
786 /* MPEG-2 Slice Parameter Buffer */
787 typedef struct _VASliceParameterBufferMPEG2
789 unsigned int slice_data_size;/* number of bytes in the slice data buffer for this slice */
790 unsigned int slice_data_offset;/* the offset to the first byte of slice data */
791 unsigned int slice_data_flag; /* see VA_SLICE_DATA_FLAG_XXX defintions */
792 unsigned int macroblock_offset;/* the offset to the first bit of MB from the first byte of slice data */
793 unsigned int slice_horizontal_position;
794 unsigned int slice_vertical_position;
795 int quantiser_scale_code;
796 int intra_slice_flag;
797 } VASliceParameterBufferMPEG2;
799 /* MPEG-2 Macroblock Parameter Buffer */
800 typedef struct _VAMacroblockParameterBufferMPEG2
802 unsigned short macroblock_address;
804 * macroblock_address (in raster scan order)
806 * bottom-right: picture-height-in-mb*picture-width-in-mb - 1
808 unsigned char macroblock_type; /* see definition below */
811 unsigned int frame_motion_type : 2;
812 unsigned int field_motion_type : 2;
813 unsigned int dct_type : 1;
817 unsigned char motion_vertical_field_select;
819 * motion_vertical_field_select:
820 * see section 6.3.17.2 in the spec
821 * only the lower 4 bits are used
822 * bit 0: first vector forward
823 * bit 1: first vector backward
824 * bit 2: second vector forward
825 * bit 3: second vector backward
827 short PMV[2][2][2]; /* see Table 7-7 in the spec */
828 unsigned short coded_block_pattern;
830 * The bitplanes for coded_block_pattern are described
831 * in Figure 6.10-12 in the spec
834 /* Number of skipped macroblocks after this macroblock */
835 unsigned short num_skipped_macroblocks;
836 } VAMacroblockParameterBufferMPEG2;
839 * OR'd flags for macroblock_type (section 6.3.17.1 in the spec)
841 #define VA_MB_TYPE_MOTION_FORWARD 0x02
842 #define VA_MB_TYPE_MOTION_BACKWARD 0x04
843 #define VA_MB_TYPE_MOTION_PATTERN 0x08
844 #define VA_MB_TYPE_MOTION_INTRA 0x10
847 * MPEG-2 Residual Data Buffer
848 * For each macroblock, there wil be 64 shorts (16-bit) in the
849 * residual data buffer
852 /****************************
853 * MPEG-4 Part 2 data structures
854 ****************************/
856 /* MPEG-4 Picture Parameter Buffer */
858 * For each frame or field, and before any slice data, a single
859 * picture parameter buffer must be send.
861 typedef struct _VAPictureParameterBufferMPEG4
863 unsigned short vop_width;
864 unsigned short vop_height;
865 VASurfaceID forward_reference_picture;
866 VASurfaceID backward_reference_picture;
869 unsigned int short_video_header : 1;
870 unsigned int chroma_format : 2;
871 unsigned int interlaced : 1;
872 unsigned int obmc_disable : 1;
873 unsigned int sprite_enable : 2;
874 unsigned int sprite_warping_accuracy : 2;
875 unsigned int quant_type : 1;
876 unsigned int quarter_sample : 1;
877 unsigned int data_partitioned : 1;
878 unsigned int reversible_vlc : 1;
879 unsigned int resync_marker_disable : 1;
883 unsigned char no_of_sprite_warping_points;
884 short sprite_trajectory_du[3];
885 short sprite_trajectory_dv[3];
886 unsigned char quant_precision;
889 unsigned int vop_coding_type : 2;
890 unsigned int backward_reference_vop_coding_type : 2;
891 unsigned int vop_rounding_type : 1;
892 unsigned int intra_dc_vlc_thr : 3;
893 unsigned int top_field_first : 1;
894 unsigned int alternate_vertical_scan_flag : 1;
898 unsigned char vop_fcode_forward;
899 unsigned char vop_fcode_backward;
900 unsigned short vop_time_increment_resolution;
901 /* short header related */
902 unsigned char num_gobs_in_vop;
903 unsigned char num_macroblocks_in_gob;
904 /* for direct mode prediction */
907 } VAPictureParameterBufferMPEG4;
909 /* MPEG-4 Inverse Quantization Matrix Buffer */
910 typedef struct _VAIQMatrixBufferMPEG4
912 int load_intra_quant_mat;
913 int load_non_intra_quant_mat;
914 unsigned char intra_quant_mat[64];
915 unsigned char non_intra_quant_mat[64];
916 } VAIQMatrixBufferMPEG4;
918 /* MPEG-4 Slice Parameter Buffer */
919 typedef struct _VASliceParameterBufferMPEG4
921 unsigned int slice_data_size;/* number of bytes in the slice data buffer for this slice */
922 unsigned int slice_data_offset;/* the offset to the first byte of slice data */
923 unsigned int slice_data_flag; /* see VA_SLICE_DATA_FLAG_XXX defintions */
924 unsigned int macroblock_offset;/* the offset to the first bit of MB from the first byte of slice data */
925 unsigned int macroblock_number;
927 } VASliceParameterBufferMPEG4;
933 typedef enum /* see 7.1.1.32 */
936 VAMvMode1MvHalfPel = 1,
937 VAMvMode1MvHalfPelBilinear = 2,
939 VAMvModeIntensityCompensation = 4
942 /* VC-1 Picture Parameter Buffer */
944 * For each picture, and before any slice data, a picture parameter
945 * buffer must be send. Multiple picture parameter buffers may be
946 * sent for a single picture. In that case picture parameters will
947 * apply to all slice data that follow it until a new picture
948 * parameter buffer is sent.
951 * pic_quantizer_type should be set to the applicable quantizer
952 * type as defined by QUANTIZER (J.1.19) and either
953 * PQUANTIZER (7.1.1.8) or PQINDEX (7.1.1.6)
955 typedef struct _VAPictureParameterBufferVC1
957 VASurfaceID forward_reference_picture;
958 VASurfaceID backward_reference_picture;
959 /* if out-of-loop post-processing is done on the render
960 target, then we need to keep the in-loop decoded
961 picture as a reference picture */
962 VASurfaceID inloop_decoded_picture;
964 /* sequence layer for AP or meta data for SP and MP */
967 unsigned int pulldown : 1; /* SEQUENCE_LAYER::PULLDOWN */
968 unsigned int interlace : 1; /* SEQUENCE_LAYER::INTERLACE */
969 unsigned int tfcntrflag : 1; /* SEQUENCE_LAYER::TFCNTRFLAG */
970 unsigned int finterpflag : 1; /* SEQUENCE_LAYER::FINTERPFLAG */
971 unsigned int psf : 1; /* SEQUENCE_LAYER::PSF */
972 unsigned int multires : 1; /* METADATA::MULTIRES */
973 unsigned int overlap : 1; /* METADATA::OVERLAP */
974 unsigned int syncmarker : 1; /* METADATA::SYNCMARKER */
975 unsigned int rangered : 1; /* METADATA::RANGERED */
976 unsigned int max_b_frames : 3; /* METADATA::MAXBFRAMES */
977 unsigned int profile : 2; /* SEQUENCE_LAYER::PROFILE or The MSB of METADATA::PROFILE */
982 unsigned short coded_width; /* ENTRY_POINT_LAYER::CODED_WIDTH */
983 unsigned short coded_height; /* ENTRY_POINT_LAYER::CODED_HEIGHT */
986 unsigned int broken_link : 1; /* ENTRY_POINT_LAYER::BROKEN_LINK */
987 unsigned int closed_entry : 1; /* ENTRY_POINT_LAYER::CLOSED_ENTRY */
988 unsigned int panscan_flag : 1; /* ENTRY_POINT_LAYER::PANSCAN_FLAG */
989 unsigned int loopfilter : 1; /* ENTRY_POINT_LAYER::LOOPFILTER */
993 unsigned char conditional_overlap_flag; /* ENTRY_POINT_LAYER::CONDOVER */
994 unsigned char fast_uvmc_flag; /* ENTRY_POINT_LAYER::FASTUVMC */
997 unsigned int luma_flag : 1; /* ENTRY_POINT_LAYER::RANGE_MAPY_FLAG */
998 unsigned int luma : 3; /* ENTRY_POINT_LAYER::RANGE_MAPY */
999 unsigned int chroma_flag : 1; /* ENTRY_POINT_LAYER::RANGE_MAPUV_FLAG */
1000 unsigned int chroma : 3; /* ENTRY_POINT_LAYER::RANGE_MAPUV */
1003 } range_mapping_fields;
1005 unsigned char b_picture_fraction; /* PICTURE_LAYER::BFRACTION */
1006 unsigned char cbp_table; /* PICTURE_LAYER::CBPTAB/ICBPTAB */
1007 unsigned char mb_mode_table; /* PICTURE_LAYER::MBMODETAB */
1008 unsigned char range_reduction_frame;/* PICTURE_LAYER::RANGEREDFRM */
1009 unsigned char rounding_control; /* PICTURE_LAYER::RNDCTRL */
1010 unsigned char post_processing; /* PICTURE_LAYER::POSTPROC */
1011 unsigned char picture_resolution_index; /* PICTURE_LAYER::RESPIC */
1012 unsigned char luma_scale; /* PICTURE_LAYER::LUMSCALE */
1013 unsigned char luma_shift; /* PICTURE_LAYER::LUMSHIFT */
1016 unsigned int picture_type : 3; /* PICTURE_LAYER::PTYPE */
1017 unsigned int frame_coding_mode : 3; /* PICTURE_LAYER::FCM */
1018 unsigned int top_field_first : 1; /* PICTURE_LAYER::TFF */
1019 unsigned int is_first_field : 1; /* set to 1 if it is the first field */
1020 unsigned int intensity_compensation : 1; /* PICTURE_LAYER::INTCOMP */
1026 unsigned int mv_type_mb : 1; /* PICTURE::MVTYPEMB */
1027 unsigned int direct_mb : 1; /* PICTURE::DIRECTMB */
1028 unsigned int skip_mb : 1; /* PICTURE::SKIPMB */
1029 unsigned int field_tx : 1; /* PICTURE::FIELDTX */
1030 unsigned int forward_mb : 1; /* PICTURE::FORWARDMB */
1031 unsigned int ac_pred : 1; /* PICTURE::ACPRED */
1032 unsigned int overflags : 1; /* PICTURE::OVERFLAGS */
1038 unsigned int bp_mv_type_mb : 1; /* PICTURE::MVTYPEMB */
1039 unsigned int bp_direct_mb : 1; /* PICTURE::DIRECTMB */
1040 unsigned int bp_skip_mb : 1; /* PICTURE::SKIPMB */
1041 unsigned int bp_field_tx : 1; /* PICTURE::FIELDTX */
1042 unsigned int bp_forward_mb : 1; /* PICTURE::FORWARDMB */
1043 unsigned int bp_ac_pred : 1; /* PICTURE::ACPRED */
1044 unsigned int bp_overflags : 1; /* PICTURE::OVERFLAGS */
1047 } bitplane_present; /* signal what bitplane is being passed via the bitplane buffer */
1050 unsigned int reference_distance_flag : 1;/* PICTURE_LAYER::REFDIST_FLAG */
1051 unsigned int reference_distance : 5;/* PICTURE_LAYER::REFDIST */
1052 unsigned int num_reference_pictures: 1;/* PICTURE_LAYER::NUMREF */
1053 unsigned int reference_field_pic_indicator : 1;/* PICTURE_LAYER::REFFIELD */
1059 unsigned int mv_mode : 3; /* PICTURE_LAYER::MVMODE */
1060 unsigned int mv_mode2 : 3; /* PICTURE_LAYER::MVMODE2 */
1061 unsigned int mv_table : 3; /* PICTURE_LAYER::MVTAB/IMVTAB */
1062 unsigned int two_mv_block_pattern_table: 2; /* PICTURE_LAYER::2MVBPTAB */
1063 unsigned int four_mv_switch : 1; /* PICTURE_LAYER::4MVSWITCH */
1064 unsigned int four_mv_block_pattern_table : 2; /* PICTURE_LAYER::4MVBPTAB */
1065 unsigned int extended_mv_flag : 1; /* ENTRY_POINT_LAYER::EXTENDED_MV */
1066 unsigned int extended_mv_range : 2; /* PICTURE_LAYER::MVRANGE */
1067 unsigned int extended_dmv_flag : 1; /* ENTRY_POINT_LAYER::EXTENDED_DMV */
1068 unsigned int extended_dmv_range : 2; /* PICTURE_LAYER::DMVRANGE */
1074 unsigned int dquant : 2; /* ENTRY_POINT_LAYER::DQUANT */
1075 unsigned int quantizer : 2; /* ENTRY_POINT_LAYER::QUANTIZER */
1076 unsigned int half_qp : 1; /* PICTURE_LAYER::HALFQP */
1077 unsigned int pic_quantizer_scale : 5;/* PICTURE_LAYER::PQUANT */
1078 unsigned int pic_quantizer_type : 1;/* PICTURE_LAYER::PQUANTIZER */
1079 unsigned int dq_frame : 1; /* VOPDQUANT::DQUANTFRM */
1080 unsigned int dq_profile : 2; /* VOPDQUANT::DQPROFILE */
1081 unsigned int dq_sb_edge : 2; /* VOPDQUANT::DQSBEDGE */
1082 unsigned int dq_db_edge : 2; /* VOPDQUANT::DQDBEDGE */
1083 unsigned int dq_binary_level : 1; /* VOPDQUANT::DQBILEVEL */
1084 unsigned int alt_pic_quantizer : 5;/* VOPDQUANT::ALTPQUANT */
1087 } pic_quantizer_fields;
1090 unsigned int variable_sized_transform_flag : 1;/* ENTRY_POINT_LAYER::VSTRANSFORM */
1091 unsigned int mb_level_transform_type_flag : 1;/* PICTURE_LAYER::TTMBF */
1092 unsigned int frame_level_transform_type : 2;/* PICTURE_LAYER::TTFRM */
1093 unsigned int transform_ac_codingset_idx1 : 2;/* PICTURE_LAYER::TRANSACFRM */
1094 unsigned int transform_ac_codingset_idx2 : 2;/* PICTURE_LAYER::TRANSACFRM2 */
1095 unsigned int intra_transform_dc_table : 1;/* PICTURE_LAYER::TRANSDCTAB */
1099 } VAPictureParameterBufferVC1;
1101 /* VC-1 Bitplane Buffer
1102 There will be at most three bitplanes coded in any picture header. To send
1103 the bitplane data more efficiently, each byte is divided in two nibbles, with
1104 each nibble carrying three bitplanes for one macroblock. The following table
1105 shows the bitplane data arrangement within each nibble based on the picture
1108 Picture Type Bit3 Bit2 Bit1 Bit0
1109 I or BI OVERFLAGS ACPRED FIELDTX
1110 P MYTYPEMB SKIPMB DIRECTMB
1111 B FORWARDMB SKIPMB DIRECTMB
1113 Within each byte, the lower nibble is for the first MB and the upper nibble is
1114 for the second MB. E.g. the lower nibble of the first byte in the bitplane
1115 buffer is for Macroblock #1 and the upper nibble of the first byte is for
1116 Macroblock #2 in the first row.
1119 /* VC-1 Slice Parameter Buffer */
1120 typedef struct _VASliceParameterBufferVC1
1122 unsigned int slice_data_size;/* number of bytes in the slice data buffer for this slice */
1123 unsigned int slice_data_offset;/* the offset to the first byte of slice data */
1124 unsigned int slice_data_flag; /* see VA_SLICE_DATA_FLAG_XXX defintions */
1125 unsigned int macroblock_offset;/* the offset to the first bit of MB from the first byte of slice data */
1126 unsigned int slice_vertical_position;
1127 } VASliceParameterBufferVC1;
1129 /* VC-1 Slice Data Buffer */
1131 This is simplely a buffer containing raw bit-stream bytes
1134 /****************************
1135 * H.264/AVC data structures
1136 ****************************/
1138 typedef struct _VAPictureH264
1140 VASurfaceID picture_id;
1141 unsigned int frame_idx;
1143 signed int TopFieldOrderCnt;
1144 signed int BottomFieldOrderCnt;
1146 /* flags in VAPictureH264 could be OR of the following */
1147 #define VA_PICTURE_H264_INVALID 0x00000001
1148 #define VA_PICTURE_H264_TOP_FIELD 0x00000002
1149 #define VA_PICTURE_H264_BOTTOM_FIELD 0x00000004
1150 #define VA_PICTURE_H264_SHORT_TERM_REFERENCE 0x00000008
1151 #define VA_PICTURE_H264_LONG_TERM_REFERENCE 0x00000010
1153 /* H.264 Picture Parameter Buffer */
1155 * For each picture, and before any slice data, a single
1156 * picture parameter buffer must be send.
1158 typedef struct _VAPictureParameterBufferH264
1160 VAPictureH264 CurrPic;
1161 VAPictureH264 ReferenceFrames[16]; /* in DPB */
1162 unsigned short picture_width_in_mbs_minus1;
1163 unsigned short picture_height_in_mbs_minus1;
1164 unsigned char bit_depth_luma_minus8;
1165 unsigned char bit_depth_chroma_minus8;
1166 unsigned char num_ref_frames;
1169 unsigned int chroma_format_idc : 2;
1170 unsigned int residual_colour_transform_flag : 1;
1171 unsigned int gaps_in_frame_num_value_allowed_flag : 1;
1172 unsigned int frame_mbs_only_flag : 1;
1173 unsigned int mb_adaptive_frame_field_flag : 1;
1174 unsigned int direct_8x8_inference_flag : 1;
1175 unsigned int MinLumaBiPredSize8x8 : 1; /* see A.3.3.2 */
1176 unsigned int log2_max_frame_num_minus4 : 4;
1177 unsigned int pic_order_cnt_type : 2;
1178 unsigned int log2_max_pic_order_cnt_lsb_minus4 : 4;
1179 unsigned int delta_pic_order_always_zero_flag : 1;
1183 unsigned char num_slice_groups_minus1;
1184 unsigned char slice_group_map_type;
1185 unsigned short slice_group_change_rate_minus1;
1186 signed char pic_init_qp_minus26;
1187 signed char pic_init_qs_minus26;
1188 signed char chroma_qp_index_offset;
1189 signed char second_chroma_qp_index_offset;
1192 unsigned int entropy_coding_mode_flag : 1;
1193 unsigned int weighted_pred_flag : 1;
1194 unsigned int weighted_bipred_idc : 2;
1195 unsigned int transform_8x8_mode_flag : 1;
1196 unsigned int field_pic_flag : 1;
1197 unsigned int constrained_intra_pred_flag : 1;
1198 unsigned int pic_order_present_flag : 1;
1199 unsigned int deblocking_filter_control_present_flag : 1;
1200 unsigned int redundant_pic_cnt_present_flag : 1;
1201 unsigned int reference_pic_flag : 1; /* nal_ref_idc != 0 */
1205 unsigned short frame_num;
1206 } VAPictureParameterBufferH264;
1208 /* H.264 Inverse Quantization Matrix Buffer */
1209 typedef struct _VAIQMatrixBufferH264
1211 unsigned char ScalingList4x4[6][16];
1212 unsigned char ScalingList8x8[2][64];
1213 } VAIQMatrixBufferH264;
1216 * H.264 Slice Group Map Buffer
1217 * When VAPictureParameterBufferH264::num_slice_group_minus1 is not equal to 0,
1218 * A slice group map buffer should be sent for each picture if required. The buffer
1219 * is sent only when there is a change in the mapping values.
1220 * The slice group map buffer map "map units" to slice groups as specified in
1221 * section 8.2.2 of the H.264 spec. The buffer will contain one byte for each macroblock
1222 * in raster scan order
1225 /* H.264 Slice Parameter Buffer */
1226 typedef struct _VASliceParameterBufferH264
1228 unsigned int slice_data_size;/* number of bytes in the slice data buffer for this slice */
1229 unsigned int slice_data_offset;/* the offset to the NAL start code for this slice */
1230 unsigned int slice_data_flag; /* see VA_SLICE_DATA_FLAG_XXX defintions */
1231 unsigned short slice_data_bit_offset; /* bit offset from NAL start code to the beginning of slice data */
1232 unsigned short first_mb_in_slice;
1233 unsigned char slice_type;
1234 unsigned char direct_spatial_mv_pred_flag;
1235 unsigned char num_ref_idx_l0_active_minus1;
1236 unsigned char num_ref_idx_l1_active_minus1;
1237 unsigned char cabac_init_idc;
1238 char slice_qp_delta;
1239 unsigned char disable_deblocking_filter_idc;
1240 char slice_alpha_c0_offset_div2;
1241 char slice_beta_offset_div2;
1242 VAPictureH264 RefPicList0[32]; /* See 8.2.4.2 */
1243 VAPictureH264 RefPicList1[32]; /* See 8.2.4.2 */
1244 unsigned char luma_log2_weight_denom;
1245 unsigned char chroma_log2_weight_denom;
1246 unsigned char luma_weight_l0_flag;
1247 short luma_weight_l0[32];
1248 short luma_offset_l0[32];
1249 unsigned char chroma_weight_l0_flag;
1250 short chroma_weight_l0[32][2];
1251 short chroma_offset_l0[32][2];
1252 unsigned char luma_weight_l1_flag;
1253 short luma_weight_l1[32];
1254 short luma_offset_l1[32];
1255 unsigned char chroma_weight_l1_flag;
1256 short chroma_weight_l1[32][2];
1257 short chroma_offset_l1[32][2];
1258 } VASliceParameterBufferH264;
1260 /****************************
1261 * Common encode data structures
1262 ****************************/
1265 VAEncPictureTypeIntra = 0,
1266 VAEncPictureTypePredictive = 1,
1267 VAEncPictureTypeBidirectional = 2,
1270 /* Encode Slice Parameter Buffer */
1271 typedef struct _VAEncSliceParameterBuffer
1273 unsigned int start_row_number; /* starting MB row number for this slice */
1274 unsigned int slice_height; /* slice height measured in MB */
1277 unsigned int is_intra : 1;
1278 unsigned int disable_deblocking_filter_idc : 2;
1279 unsigned int uses_long_term_ref :1;
1280 unsigned int is_long_term_ref :1;
1284 } VAEncSliceParameterBuffer;
1286 /****************************
1287 * H.264 specific encode data structures
1288 ****************************/
1290 typedef struct _VAEncSequenceParameterBufferH264
1292 unsigned char seq_parameter_set_id;
1293 unsigned char level_idc;
1294 unsigned int intra_period;
1295 unsigned int intra_idr_period;
1296 unsigned int max_num_ref_frames;
1297 unsigned int picture_width_in_mbs;
1298 unsigned int picture_height_in_mbs;
1299 unsigned int bits_per_second;
1300 unsigned int frame_rate;
1301 unsigned int initial_qp;
1302 unsigned int min_qp;
1303 unsigned int basic_unit_size;
1304 unsigned char vui_flag;
1305 } VAEncSequenceParameterBufferH264;
1307 #define H264_LAST_PICTURE_EOSEQ 0x01 /* the last picture in the sequence */
1308 #define H264_LAST_PICTURE_EOSTREAM 0x02 /* the last picture in the stream */
1309 typedef struct _VAEncPictureParameterBufferH264
1311 VASurfaceID reference_picture;
1312 VASurfaceID reconstructed_picture;
1313 VABufferID coded_buf;
1314 unsigned short picture_width;
1315 unsigned short picture_height;
1316 unsigned char last_picture;
1317 } VAEncPictureParameterBufferH264;
1319 /****************************
1320 * H.263 specific encode data structures
1321 ****************************/
1323 typedef struct _VAEncSequenceParameterBufferH263
1325 unsigned int intra_period;
1326 unsigned int bits_per_second;
1327 unsigned int frame_rate;
1328 unsigned int initial_qp;
1329 unsigned int min_qp;
1330 } VAEncSequenceParameterBufferH263;
1332 typedef struct _VAEncPictureParameterBufferH263
1334 VASurfaceID reference_picture;
1335 VASurfaceID reconstructed_picture;
1336 VABufferID coded_buf;
1337 unsigned short picture_width;
1338 unsigned short picture_height;
1339 VAEncPictureType picture_type;
1340 } VAEncPictureParameterBufferH263;
1342 /****************************
1343 * MPEG-4 specific encode data structures
1344 ****************************/
1346 typedef struct _VAEncSequenceParameterBufferMPEG4
1348 unsigned char profile_and_level_indication;
1349 unsigned int intra_period;
1350 unsigned int video_object_layer_width;
1351 unsigned int video_object_layer_height;
1352 unsigned int vop_time_increment_resolution;
1353 unsigned int fixed_vop_rate;
1354 unsigned int fixed_vop_time_increment;
1355 unsigned int bits_per_second;
1356 unsigned int frame_rate;
1357 unsigned int initial_qp;
1358 unsigned int min_qp;
1359 } VAEncSequenceParameterBufferMPEG4;
1361 typedef struct _VAEncPictureParameterBufferMPEG4
1363 VASurfaceID reference_picture;
1364 VASurfaceID reconstructed_picture;
1365 VABufferID coded_buf;
1366 unsigned short picture_width;
1367 unsigned short picture_height;
1368 unsigned int modulo_time_base; /* number of 1s */
1369 unsigned int vop_time_increment;
1370 VAEncPictureType picture_type;
1371 } VAEncPictureParameterBufferMPEG4;
1375 /* Buffer functions */
1378 * Creates a buffer for "num_elements" elements of "size" bytes and
1379 * initalize with "data".
1380 * if "data" is null, then the contents of the buffer data store
1382 * Basically there are two ways to get buffer data to the server side. One is
1383 * to call vaCreateBuffer() with a non-null "data", which results the data being
1384 * copied to the data store on the server side. A different method that
1385 * eliminates this copy is to pass null as "data" when calling vaCreateBuffer(),
1386 * and then use vaMapBuffer() to map the data store from the server side to the
1387 * client address space for access.
1388 * Note: image buffers are created by the library, not the client. Please see
1389 * vaCreateImage on how image buffers are managed.
1391 VAStatus vaCreateBuffer (
1393 VAContextID context,
1394 VABufferType type, /* in */
1395 unsigned int size, /* in */
1396 unsigned int num_elements, /* in */
1397 void *data, /* in */
1398 VABufferID *buf_id /* out */
1402 * Convey to the server how many valid elements are in the buffer.
1403 * e.g. if multiple slice parameters are being held in a single buffer,
1404 * this will communicate to the server the number of slice parameters
1405 * that are valid in the buffer.
1407 VAStatus vaBufferSetNumElements (
1409 VABufferID buf_id, /* in */
1410 unsigned int num_elements /* in */
1415 * device independent data structure for codedbuffer
1419 * FICTURE_AVE_QP(bit7-0): The average Qp value used during this frame
1420 * LARGE_SLICE(bit8):At least one slice in the current frame was large
1421 * enough for the encoder to attempt to limit its size.
1422 * SLICE_OVERFLOW(bit9): At least one slice in the current frame has
1423 * exceeded the maximum slice size specified.
1424 * BITRATE_OVERFLOW(bit10): The peak bitrate was exceeded for this frame.
1425 * BITRATE_HIGH(bit11): The frame size got within the safety margin of the maximum size (VCM only)
1426 * AIR_MB_OVER_THRESHOLD: the number of MBs adapted to Intra MB
1428 #define VA_CODED_BUF_STATUS_PICTURE_AVE_QP_MASK 0xff
1429 #define VA_CODED_BUF_STATUS_LARGE_SLICE_MASK 0x100
1430 #define VA_CODED_BUF_STATUS_SLICE_OVERFLOW_MASK 0x200
1431 #define VA_CODED_BUF_STATUS_BITRATE_OVERFLOW 0x400
1432 #define VA_CODED_BUF_STATUS_BITRATE_HIGH 0x800
1433 #define VA_CODED_BUF_STATUS_AIR_MB_OVER_THRESHOLD 0xff0000
1436 * device independent data structure for codedbuffer
1438 typedef struct _VACodedBufferSegment {
1439 unsigned int size;/* size of the data buffer in the coded buffer segment, in bytes */
1440 unsigned int bit_offset; /* bit offset into the data buffer where valid bitstream data begins */
1441 unsigned int status; /* status set by the driver on the coded buffer*/
1442 unsigned int reserved; /* for future use */
1443 void *buf; /* pointer to the beginning of the data buffer in the coded buffer segment */
1444 void *next; /* pointer to the next VACodedBufferSegment */
1445 } VACodedBufferSegment;
1448 * Map data store of the buffer into the client's address space
1449 * vaCreateBuffer() needs to be called with "data" set to NULL before
1450 * calling vaMapBuffer()
1452 * if buffer type is VAEncCodedBufferType, pbuf points to link-list of
1453 * VACodedBufferSegment, and the list is terminated if "next" is NULL
1455 VAStatus vaMapBuffer (
1457 VABufferID buf_id, /* in */
1458 void **pbuf /* out */
1462 * After client making changes to a mapped data store, it needs to
1463 * "Unmap" it to let the server know that the data is ready to be
1464 * consumed by the server
1466 VAStatus vaUnmapBuffer (
1468 VABufferID buf_id /* in */
1472 * After this call, the buffer is deleted and this buffer_id is no longer valid
1473 * Only call this if the buffer is not going to be passed to vaRenderBuffer
1475 VAStatus vaDestroyBuffer (
1477 VABufferID buffer_id
1481 Render (Decode) Pictures
1483 A picture represents either a frame or a field.
1485 The Begin/Render/End sequence sends the decode buffers to the server
1489 * Get ready to decode a picture to a target surface
1491 VAStatus vaBeginPicture (
1493 VAContextID context,
1494 VASurfaceID render_target
1498 * Send decode buffers to the server.
1499 * Buffers are automatically destroyed afterwards
1501 VAStatus vaRenderPicture (
1503 VAContextID context,
1504 VABufferID *buffers,
1509 * Make the end of rendering for a picture.
1510 * The server should start processing all pending operations for this
1511 * surface. This call is non-blocking. The client can start another
1512 * Begin/Render/End sequence on a different render target.
1514 VAStatus vaEndPicture (
1526 * This function blocks until all pending operations on the render target
1527 * have been completed. Upon return it is safe to use the render target for a
1528 * different picture.
1530 VAStatus vaSyncSurface (
1532 VASurfaceID render_target
1537 VASurfaceRendering = 1, /* Rendering in progress */
1538 VASurfaceDisplaying = 2, /* Displaying in progress (not safe to render into it) */
1539 /* this status is useful if surface is used as the source */
1541 VASurfaceReady = 4, /* not being rendered or displayed */
1542 VASurfaceSkipped = 8 /* Indicate a skipped frame during encode */
1546 * Find out any pending ops on the render target
1548 VAStatus vaQuerySurfaceStatus (
1550 VASurfaceID render_target,
1551 VASurfaceStatus *status /* out */
1556 VADecodeSliceMissing = 0,
1557 VADecodeMBError = 1,
1558 } VADecodeErrorType;
1561 * Client calls vaQuerySurfaceError with VA_STATUS_ERROR_DECODING_ERROR, server side returns
1562 * an array of structure VASurfaceDecodeMBErrors, and the array is terminated by setting status=-1
1564 typedef struct _VASurfaceDecodeMBErrors
1566 int status; /* 1 if hardware has returned detailed info below, -1 means this record is invalid */
1567 unsigned int start_mb; /* start mb address with errors */
1568 unsigned int end_mb; /* end mb address with errors */
1569 VADecodeErrorType decode_error_type;
1570 } VASurfaceDecodeMBErrors;
1573 * After the application gets VA_STATUS_ERROR_DECODING_ERROR after calling vaSyncSurface(),
1574 * it can call vaQuerySurfaceError to find out further details on the particular error.
1575 * VA_STATUS_ERROR_DECODING_ERROR should be passed in as "error_status",
1576 * upon the return, error_info will point to an array of _VASurfaceDecodeMBErrors structure,
1577 * which is allocated and filled by libVA with detailed information on the missing or error macroblocks.
1578 * The array is terminated if "status==-1" is detected.
1580 VAStatus vaQuerySurfaceError(
1582 VASurfaceID surface,
1583 VAStatus error_status,
1588 * Images and Subpictures
1589 * VAImage is used to either get the surface data to client memory, or
1590 * to copy image data in client memory to a surface.
1591 * Both images, subpictures and surfaces follow the same 2D coordinate system where origin
1592 * is at the upper left corner with positive X to the right and positive Y down
1594 #define VA_FOURCC(ch0, ch1, ch2, ch3) \
1595 ((unsigned long)(unsigned char) (ch0) | ((unsigned long)(unsigned char) (ch1) << 8) | \
1596 ((unsigned long)(unsigned char) (ch2) << 16) | ((unsigned long)(unsigned char) (ch3) << 24 ))
1598 /* a few common FourCCs */
1599 #define VA_FOURCC_NV12 0x3231564E
1600 #define VA_FOURCC_AI44 0x34344149
1601 #define VA_FOURCC_RGBA 0x41424752
1602 #define VA_FOURCC_BGRA 0x41524742
1603 #define VA_FOURCC_UYVY 0x59565955
1604 #define VA_FOURCC_YUY2 0x32595559
1605 #define VA_FOURCC_AYUV 0x56555941
1606 #define VA_FOURCC_NV11 0x3131564e
1607 #define VA_FOURCC_YV12 0x32315659
1608 #define VA_FOURCC_P208 0x38303250
1609 #define VA_FOURCC_IYUV 0x56555949
1612 #define VA_LSB_FIRST 1
1613 #define VA_MSB_FIRST 2
1615 typedef struct _VAImageFormat
1617 unsigned int fourcc;
1618 unsigned int byte_order; /* VA_LSB_FIRST, VA_MSB_FIRST */
1619 unsigned int bits_per_pixel;
1620 /* for RGB formats */
1621 unsigned int depth; /* significant bits per pixel */
1622 unsigned int red_mask;
1623 unsigned int green_mask;
1624 unsigned int blue_mask;
1625 unsigned int alpha_mask;
1628 typedef VAGenericID VAImageID;
1630 typedef struct _VAImage
1632 VAImageID image_id; /* uniquely identify this image */
1633 VAImageFormat format;
1634 VABufferID buf; /* image data buffer */
1636 * Image data will be stored in a buffer of type VAImageBufferType to facilitate
1637 * data store on the server side for optimal performance. The buffer will be
1638 * created by the CreateImage function, and proper storage allocated based on the image
1639 * size and format. This buffer is managed by the library implementation, and
1640 * accessed by the client through the buffer Map/Unmap functions.
1642 unsigned short width;
1643 unsigned short height;
1644 unsigned int data_size;
1645 unsigned int num_planes; /* can not be greater than 3 */
1647 * An array indicating the scanline pitch in bytes for each plane.
1648 * Each plane may have a different pitch. Maximum 3 planes for planar formats
1650 unsigned int pitches[3];
1652 * An array indicating the byte offset from the beginning of the image data
1653 * to the start of each plane.
1655 unsigned int offsets[3];
1657 /* The following fields are only needed for paletted formats */
1658 int num_palette_entries; /* set to zero for non-palette images */
1660 * Each component is one byte and entry_bytes indicates the number of components in
1661 * each entry (eg. 3 for YUV palette entries). set to zero for non-palette images
1665 * An array of ascii characters describing the order of the components within the bytes.
1666 * Only entry_bytes characters of the string are used.
1668 char component_order[4];
1671 /* Get maximum number of image formats supported by the implementation */
1672 int vaMaxNumImageFormats (
1677 * Query supported image formats
1678 * The caller must provide a "format_list" array that can hold at
1679 * least vaMaxNumImageFormats() entries. The actual number of formats
1680 * returned in "format_list" is returned in "num_formats".
1682 VAStatus vaQueryImageFormats (
1684 VAImageFormat *format_list, /* out */
1685 int *num_formats /* out */
1689 * Create a VAImage structure
1690 * The width and height fields returned in the VAImage structure may get
1691 * enlarged for some YUV formats. Upon return from this function,
1692 * image->buf has been created and proper storage allocated by the library.
1693 * The client can access the image through the Map/Unmap calls.
1695 VAStatus vaCreateImage (
1697 VAImageFormat *format,
1700 VAImage *image /* out */
1704 * Should call DestroyImage before destroying the surface it is bound to
1706 VAStatus vaDestroyImage (
1711 VAStatus vaSetImagePalette (
1715 * pointer to an array holding the palette data. The size of the array is
1716 * num_palette_entries * entry_bytes in size. The order of the components
1717 * in the palette is described by the component_order in VAImage struct
1719 unsigned char *palette
1723 * Retrive surface data into a VAImage
1724 * Image must be in a format supported by the implementation
1726 VAStatus vaGetImage (
1728 VASurfaceID surface,
1729 int x, /* coordinates of the upper left source pixel */
1731 unsigned int width, /* width and height of the region */
1732 unsigned int height,
1737 * Copy data from a VAImage to a surface
1738 * Image must be in a format supported by the implementation
1739 * Returns a VA_STATUS_ERROR_SURFACE_BUSY if the surface
1740 * shouldn't be rendered into when this is called
1742 VAStatus vaPutImage (
1744 VASurfaceID surface,
1748 unsigned int src_width,
1749 unsigned int src_height,
1752 unsigned int dest_width,
1753 unsigned int dest_height
1757 * Derive an VAImage from an existing surface.
1758 * This interface will derive a VAImage and corresponding image buffer from
1759 * an existing VA Surface. The image buffer can then be mapped/unmapped for
1760 * direct CPU access. This operation is only possible on implementations with
1761 * direct rendering capabilities and internal surface formats that can be
1762 * represented with a VAImage. When the operation is not possible this interface
1763 * will return VA_STATUS_ERROR_OPERATION_FAILED. Clients should then fall back
1764 * to using vaCreateImage + vaPutImage to accomplish the same task in an
1767 * Implementations should only return success when the resulting image buffer
1768 * would be useable with vaMap/Unmap.
1770 * When directly accessing a surface special care must be taken to insure
1771 * proper synchronization with the graphics hardware. Clients should call
1772 * vaQuerySurfaceStatus to insure that a surface is not the target of concurrent
1773 * rendering or currently being displayed by an overlay.
1775 * Additionally nothing about the contents of a surface should be assumed
1776 * following a vaPutSurface. Implementations are free to modify the surface for
1777 * scaling or subpicture blending within a call to vaPutImage.
1779 * Calls to vaPutImage or vaGetImage using the same surface from which the image
1780 * has been derived will return VA_STATUS_ERROR_SURFACE_BUSY. vaPutImage or
1781 * vaGetImage with other surfaces is supported.
1783 * An image created with vaDeriveImage should be freed with vaDestroyImage. The
1784 * image and image buffer structures will be destroyed; however, the underlying
1785 * surface will remain unchanged until freed with vaDestroySurfaces.
1787 VAStatus vaDeriveImage (
1789 VASurfaceID surface,
1790 VAImage *image /* out */
1795 * Subpicture is a special type of image that can be blended
1796 * with a surface during vaPutSurface(). Subpicture can be used to render
1797 * DVD sub-titles or closed captioning text etc.
1800 typedef VAGenericID VASubpictureID;
1802 /* Get maximum number of subpicture formats supported by the implementation */
1803 int vaMaxNumSubpictureFormats (
1807 /* flags for subpictures */
1808 #define VA_SUBPICTURE_CHROMA_KEYING 0x0001
1809 #define VA_SUBPICTURE_GLOBAL_ALPHA 0x0002
1810 #define VA_SUBPICTURE_DESTINATION_IS_SCREEN_COORD 0x0004
1812 * Query supported subpicture formats
1813 * The caller must provide a "format_list" array that can hold at
1814 * least vaMaxNumSubpictureFormats() entries. The flags arrary holds the flag
1815 * for each format to indicate additional capabilities for that format. The actual
1816 * number of formats returned in "format_list" is returned in "num_formats".
1817 * flags: returned value to indicate addtional capabilities
1818 * VA_SUBPICTURE_CHROMA_KEYING - supports chroma-keying
1819 * VA_SUBPICTURE_GLOBAL_ALPHA - supports global alpha
1820 * VA_SUBPICTURE_DESTINATION_IS_SCREEN_COORD - supports unscaled screen relative subpictures for On Screen Display
1823 VAStatus vaQuerySubpictureFormats (
1825 VAImageFormat *format_list, /* out */
1826 unsigned int *flags, /* out */
1827 unsigned int *num_formats /* out */
1831 * Subpictures are created with an image associated.
1833 VAStatus vaCreateSubpicture (
1836 VASubpictureID *subpicture /* out */
1840 * Destroy the subpicture before destroying the image it is assocated to
1842 VAStatus vaDestroySubpicture (
1844 VASubpictureID subpicture
1848 * Bind an image to the subpicture. This image will now be associated with
1849 * the subpicture instead of the one at creation.
1851 VAStatus vaSetSubpictureImage (
1853 VASubpictureID subpicture,
1858 * If chromakey is enabled, then the area where the source value falls within
1859 * the chromakey [min, max] range is transparent
1860 * The chromakey component format is the following:
1861 * For RGB: [0:7] Red [8:15] Blue [16:23] Green
1862 * For YUV: [0:7] V [8:15] U [16:23] Y
1863 * The chromakey mask can be used to mask out certain components for chromakey
1866 VAStatus vaSetSubpictureChromakey (
1868 VASubpictureID subpicture,
1869 unsigned int chromakey_min,
1870 unsigned int chromakey_max,
1871 unsigned int chromakey_mask
1875 * Global alpha value is between 0 and 1. A value of 1 means fully opaque and
1876 * a value of 0 means fully transparent. If per-pixel alpha is also specified then
1877 * the overall alpha is per-pixel alpha multiplied by the global alpha
1879 VAStatus vaSetSubpictureGlobalAlpha (
1881 VASubpictureID subpicture,
1886 * vaAssociateSubpicture associates the subpicture with target_surfaces.
1887 * It defines the region mapping between the subpicture and the target
1888 * surfaces through source and destination rectangles (with the same width and height).
1889 * Both will be displayed at the next call to vaPutSurface. Additional
1890 * associations before the call to vaPutSurface simply overrides the association.
1892 VAStatus vaAssociateSubpicture (
1894 VASubpictureID subpicture,
1895 VASurfaceID *target_surfaces,
1897 short src_x, /* upper left offset in subpicture */
1899 unsigned short src_width,
1900 unsigned short src_height,
1901 short dest_x, /* upper left offset in surface */
1903 unsigned short dest_width,
1904 unsigned short dest_height,
1906 * whether to enable chroma-keying, global-alpha, or screen relative mode
1907 * see VA_SUBPICTURE_XXX values
1913 * vaDeassociateSubpicture removes the association of the subpicture with target_surfaces.
1915 VAStatus vaDeassociateSubpicture (
1917 VASubpictureID subpicture,
1918 VASurfaceID *target_surfaces,
1922 typedef struct _VARectangle
1926 unsigned short width;
1927 unsigned short height;
1931 * Display attributes
1932 * Display attributes are used to control things such as contrast, hue, saturation,
1933 * brightness etc. in the rendering process. The application can query what
1934 * attributes are supported by the driver, and then set the appropriate attributes
1935 * before calling vaPutSurface()
1937 /* PowerVR IEP Lite attributes */
1940 VADISPLAYATTRIB_BLE_OFF = 0x00,
1941 VADISPLAYATTRIB_BLE_LOW,
1942 VADISPLAYATTRIB_BLE_MEDIUM,
1943 VADISPLAYATTRIB_BLE_HIGH,
1944 VADISPLAYATTRIB_BLE_NONE,
1945 } VADisplayAttribBLEMode;
1947 /* attribute value for VADisplayAttribRotation */
1948 #define VA_ROTATION_NONE 0x00000000
1949 #define VA_ROTATION_90 0x00000001
1950 #define VA_ROTATION_180 0x00000002
1951 #define VA_ROTATION_270 0x00000003
1953 /* attribute value for VADisplayAttribOutOfLoopDeblock */
1954 #define VA_OOL_DEBLOCKING_FALSE 0x00000000
1955 #define VA_OOL_DEBLOCKING_TRUE 0x00000001
1958 #define VA_RENDER_MODE_UNDEFINED 0
1959 #define VA_RENDER_MODE_LOCAL_OVERLAY 1
1960 #define VA_RENDER_MODE_LOCAL_GPU 2
1961 #define VA_RENDER_MODE_EXTERNAL_OVERLAY 4
1962 #define VA_RENDER_MODE_EXTERNAL_GPU 8
1965 #define VA_RENDER_DEVICE_UNDEFINED 0
1966 #define VA_RENDER_DEVICE_LOCAL 1
1967 #define VA_RENDER_DEVICE_EXTERNAL 2
1969 /* Currently defined display attribute types */
1972 VADisplayAttribBrightness = 0,
1973 VADisplayAttribContrast = 1,
1974 VADisplayAttribHue = 2,
1975 VADisplayAttribSaturation = 3,
1976 /* client can specifiy a background color for the target window
1977 * the new feature of video conference,
1978 * the uncovered area of the surface is filled by this color
1979 * also it will blend with the decoded video color
1981 VADisplayAttribBackgroundColor = 4,
1983 * this is a gettable only attribute. For some implementations that use the
1984 * hardware overlay, after PutSurface is called, the surface can not be
1985 * re-used until after the subsequent PutSurface call. If this is the case
1986 * then the value for this attribute will be set to 1 so that the client
1987 * will not attempt to re-use the surface right after returning from a call
1990 * Don't use it, use flag VASurfaceDisplaying of vaQuerySurfaceStatus since
1991 * driver may use overlay or GPU alternatively
1993 VADisplayAttribDirectSurface = 5,
1994 VADisplayAttribRotation = 6,
1995 VADisplayAttribOutofLoopDeblock = 7,
1997 /* PowerVR IEP Lite specific attributes */
1998 VADisplayAttribBLEBlackMode = 8,
1999 VADisplayAttribBLEWhiteMode = 9,
2000 VADisplayAttribBlueStretch = 10,
2001 VADisplayAttribSkinColorCorrection = 11,
2003 * For type VADisplayAttribCSCMatrix, "value" field is a pointer to the color
2004 * conversion matrix. Each element in the matrix is float-point
2006 VADisplayAttribCSCMatrix = 12,
2007 /* specify the constant color used to blend with video surface
2008 * Cd = Cv*Cc*Ac + Cb *(1 - Ac) C means the constant RGB
2009 * d: the final color to overwrite into the frame buffer
2010 * v: decoded video after color conversion,
2011 * c: video color specified by VADisplayAttribBlendColor
2012 * b: background color of the drawable
2014 VADisplayAttribBlendColor = 13,
2016 * Indicate driver to skip painting color key or not.
2017 * only applicable if the render is overlay
2019 VADisplayAttribOverlayAutoPaintColorKey = 14,
2021 * customized overlay color key, the format is RGB888
2022 * [23:16] = Red, [15:08] = Green, [07:00] = Blue.
2024 VADisplayAttribOverlayColorKey = 15,
2026 * The hint for the implementation of vaPutSurface
2027 * normally, the driver could use an overlay or GPU to render the surface on the screen
2028 * this flag provides APP the flexibity to switch the render dynamically
2030 VADisplayAttribRenderMode = 16,
2032 * specify if vaPutSurface needs to render into specified monitors
2033 * one example is that one external monitor (e.g. HDMI) is enabled,
2034 * but the window manager is not aware of it, and there is no associated drawable
2036 VADisplayAttribRenderDevice = 17,
2038 * specify vaPutSurface render area if there is no drawable on the monitor
2040 VADisplayAttribRenderRect = 18,
2041 } VADisplayAttribType;
2043 /* flags for VADisplayAttribute */
2044 #define VA_DISPLAY_ATTRIB_NOT_SUPPORTED 0x0000
2045 #define VA_DISPLAY_ATTRIB_GETTABLE 0x0001
2046 #define VA_DISPLAY_ATTRIB_SETTABLE 0x0002
2048 typedef struct _VADisplayAttribute
2050 VADisplayAttribType type;
2053 int value; /* used by the set/get attribute functions */
2054 /* flags can be VA_DISPLAY_ATTRIB_GETTABLE or VA_DISPLAY_ATTRIB_SETTABLE or OR'd together */
2056 } VADisplayAttribute;
2058 /* Get maximum number of display attributs supported by the implementation */
2059 int vaMaxNumDisplayAttributes (
2064 * Query display attributes
2065 * The caller must provide a "attr_list" array that can hold at
2066 * least vaMaxNumDisplayAttributes() entries. The actual number of attributes
2067 * returned in "attr_list" is returned in "num_attributes".
2069 VAStatus vaQueryDisplayAttributes (
2071 VADisplayAttribute *attr_list, /* out */
2072 int *num_attributes /* out */
2076 * Get display attributes
2077 * This function returns the current attribute values in "attr_list".
2078 * Only attributes returned with VA_DISPLAY_ATTRIB_GETTABLE set in the "flags" field
2079 * from vaQueryDisplayAttributes() can have their values retrieved.
2081 VAStatus vaGetDisplayAttributes (
2083 VADisplayAttribute *attr_list, /* in/out */
2088 * Set display attributes
2089 * Only attributes returned with VA_DISPLAY_ATTRIB_SETTABLE set in the "flags" field
2090 * from vaQueryDisplayAttributes() can be set. If the attribute is not settable or
2091 * the value is out of range, the function returns VA_STATUS_ERROR_ATTR_NOT_SUPPORTED
2093 VAStatus vaSetDisplayAttributes (
2095 VADisplayAttribute *attr_list,