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22 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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
62 * Some concepts borrowed from XvMC and XvImage.
63 * Waldo Bastian (Intel), Matt Sottek (Intel), Austin Yuan (Intel), and Gwenole Beauchesne (SDS)
64 * contributed to various aspects of the API.
70 #include <va/va_version.h>
79 The VA API is intended to provide an interface between a video decode/encode/display
80 application (client) and a hardware accelerator (server), to off-load
81 video decode/encode/display operations from the host to the hardware accelerator at various
84 The basic operation steps are:
86 - Negotiate a mutually acceptable configuration with the server to lock
87 down profile, entrypoints, and other attributes that will not change on
88 a frame-by-frame basis.
89 - Create a decode context which represents a "virtualized" hardware decode
91 - Get and fill decode buffers with picture level, slice level and macroblock
92 level data (depending on entrypoints)
93 - Pass the decode buffers to the server to decode the current frame
95 Initialization & Configuration Management
97 - Find out supported profiles
98 - Find out entrypoints for a given profile
99 - Find out configuration attributes for a given profile/entrypoint pair
100 - Create a configuration for use by the decoder
104 typedef void* VADisplay; /* window system dependent */
106 typedef int VAStatus; /* Return status type from functions */
107 /* Values for the return status */
108 #define VA_STATUS_SUCCESS 0x00000000
109 #define VA_STATUS_ERROR_OPERATION_FAILED 0x00000001
110 #define VA_STATUS_ERROR_ALLOCATION_FAILED 0x00000002
111 #define VA_STATUS_ERROR_INVALID_DISPLAY 0x00000003
112 #define VA_STATUS_ERROR_INVALID_CONFIG 0x00000004
113 #define VA_STATUS_ERROR_INVALID_CONTEXT 0x00000005
114 #define VA_STATUS_ERROR_INVALID_SURFACE 0x00000006
115 #define VA_STATUS_ERROR_INVALID_BUFFER 0x00000007
116 #define VA_STATUS_ERROR_INVALID_IMAGE 0x00000008
117 #define VA_STATUS_ERROR_INVALID_SUBPICTURE 0x00000009
118 #define VA_STATUS_ERROR_ATTR_NOT_SUPPORTED 0x0000000a
119 #define VA_STATUS_ERROR_MAX_NUM_EXCEEDED 0x0000000b
120 #define VA_STATUS_ERROR_UNSUPPORTED_PROFILE 0x0000000c
121 #define VA_STATUS_ERROR_UNSUPPORTED_ENTRYPOINT 0x0000000d
122 #define VA_STATUS_ERROR_UNSUPPORTED_RT_FORMAT 0x0000000e
123 #define VA_STATUS_ERROR_UNSUPPORTED_BUFFERTYPE 0x0000000f
124 #define VA_STATUS_ERROR_SURFACE_BUSY 0x00000010
125 #define VA_STATUS_ERROR_FLAG_NOT_SUPPORTED 0x00000011
126 #define VA_STATUS_ERROR_INVALID_PARAMETER 0x00000012
127 #define VA_STATUS_ERROR_RESOLUTION_NOT_SUPPORTED 0x00000013
128 #define VA_STATUS_ERROR_UNIMPLEMENTED 0x00000014
129 #define VA_STATUS_ERROR_SURFACE_IN_DISPLAYING 0x00000015
130 #define VA_STATUS_ERROR_UNKNOWN 0xFFFFFFFF
132 /* De-interlacing flags for vaPutSurface() */
133 #define VA_FRAME_PICTURE 0x00000000
134 #define VA_TOP_FIELD 0x00000001
135 #define VA_BOTTOM_FIELD 0x00000002
138 * Clears the drawable with background color.
139 * for hardware overlay based implementation this flag
140 * can be used to turn off the overlay
142 #define VA_CLEAR_DRAWABLE 0x00000008
144 /* Color space conversion flags for vaPutSurface() */
145 #define VA_SRC_BT601 0x00000010
146 #define VA_SRC_BT709 0x00000020
149 * Returns a short english description of error_status
151 const char *vaErrorStr(VAStatus error_status);
155 * A display must be obtained by calling vaGetDisplay() before calling
156 * vaInitialize() and other functions. This connects the API to the
157 * native window system.
158 * For X Windows, native_dpy would be from XOpenDisplay()
160 typedef void* NativeDisplay; /* window system dependent */
162 int vaDisplayIsValid(VADisplay dpy);
165 * Initialize the library
167 VAStatus vaInitialize (
169 int *major_version, /* out */
170 int *minor_version /* out */
174 * After this call, all library internal resources will be cleaned up
176 VAStatus vaTerminate (
181 * vaQueryVendorString returns a pointer to a zero-terminated string
182 * describing some aspects of the VA implemenation on a specific
183 * hardware accelerator. The format of the returned string is vendor
184 * specific and at the discretion of the implementer.
185 * e.g. for the Intel GMA500 implementation, an example would be:
186 * "Intel GMA500 - 2.0.0.32L.0005"
188 const char *vaQueryVendorString (
192 typedef int (*VAPrivFunc)();
195 * Return a function pointer given a function name in the library.
196 * This allows private interfaces into the library
198 VAPrivFunc vaGetLibFunc (
203 /* Currently defined profiles */
206 VAProfileMPEG2Simple = 0,
207 VAProfileMPEG2Main = 1,
208 VAProfileMPEG4Simple = 2,
209 VAProfileMPEG4AdvancedSimple = 3,
210 VAProfileMPEG4Main = 4,
211 VAProfileH264Baseline = 5,
212 VAProfileH264Main = 6,
213 VAProfileH264High = 7,
214 VAProfileVC1Simple = 8,
215 VAProfileVC1Main = 9,
216 VAProfileVC1Advanced = 10,
217 VAProfileH263Baseline = 11,
218 VAProfileJPEGBaseline = 12
222 * Currently defined entrypoints
228 VAEntrypointIDCT = 3,
229 VAEntrypointMoComp = 4,
230 VAEntrypointDeblocking = 5,
231 VAEntrypointEncSlice = 6, /* slice level encode */
232 VAEntrypointEncPicture = 7 /* pictuer encode, JPEG, etc */
235 /* Currently defined configuration attribute types */
238 VAConfigAttribRTFormat = 0,
239 VAConfigAttribSpatialResidual = 1,
240 VAConfigAttribSpatialClipping = 2,
241 VAConfigAttribIntraResidual = 3,
242 VAConfigAttribEncryption = 4,
243 VAConfigAttribRateControl = 5
244 } VAConfigAttribType;
247 * Configuration attributes
248 * If there is more than one value for an attribute, a default
249 * value will be assigned to the attribute if the client does not
250 * specify the attribute when creating a configuration
252 typedef struct _VAConfigAttrib {
253 VAConfigAttribType type;
254 unsigned int value; /* OR'd flags (bits) for this attribute */
257 /* attribute value for VAConfigAttribRTFormat */
258 #define VA_RT_FORMAT_YUV420 0x00000001
259 #define VA_RT_FORMAT_YUV422 0x00000002
260 #define VA_RT_FORMAT_YUV444 0x00000004
261 #define VA_RT_FORMAT_PROTECTED 0x80000000
263 /* attribute value for VAConfigAttribRateControl */
264 #define VA_RC_NONE 0x00000001
265 #define VA_RC_CBR 0x00000002
266 #define VA_RC_VBR 0x00000004
269 * if an attribute is not applicable for a given
270 * profile/entrypoint pair, then set the value to the following
272 #define VA_ATTRIB_NOT_SUPPORTED 0x80000000
274 /* Get maximum number of profiles supported by the implementation */
275 int vaMaxNumProfiles (
279 /* Get maximum number of entrypoints supported by the implementation */
280 int vaMaxNumEntrypoints (
284 /* Get maximum number of attributs supported by the implementation */
285 int vaMaxNumConfigAttributes (
290 * Query supported profiles
291 * The caller must provide a "profile_list" array that can hold at
292 * least vaMaxNumProfile() entries. The actual number of profiles
293 * returned in "profile_list" is returned in "num_profile".
295 VAStatus vaQueryConfigProfiles (
297 VAProfile *profile_list, /* out */
298 int *num_profiles /* out */
302 * Query supported entrypoints for a given profile
303 * The caller must provide an "entrypoint_list" array that can hold at
304 * least vaMaxNumEntrypoints() entries. The actual number of entrypoints
305 * returned in "entrypoint_list" is returned in "num_entrypoints".
307 VAStatus vaQueryConfigEntrypoints (
310 VAEntrypoint *entrypoint_list, /* out */
311 int *num_entrypoints /* out */
315 * Get attributes for a given profile/entrypoint pair
316 * The caller must provide an "attrib_list" with all attributes to be
317 * retrieved. Upon return, the attributes in "attrib_list" have been
318 * updated with their value. Unknown attributes or attributes that are
319 * not supported for the given profile/entrypoint pair will have their
320 * value set to VA_ATTRIB_NOT_SUPPORTED
322 VAStatus vaGetConfigAttributes (
325 VAEntrypoint entrypoint,
326 VAConfigAttrib *attrib_list, /* in/out */
330 /* Generic ID type, can be re-typed for specific implementation */
331 typedef unsigned int VAGenericID;
333 typedef VAGenericID VAConfigID;
336 * Create a configuration for the decode pipeline
337 * it passes in the attribute list that specifies the attributes it cares
338 * about, with the rest taking default values.
340 VAStatus vaCreateConfig (
343 VAEntrypoint entrypoint,
344 VAConfigAttrib *attrib_list,
346 VAConfigID *config_id /* out */
350 * Free resources associdated with a given config
352 VAStatus vaDestroyConfig (
358 * Query all attributes for a given configuration
359 * The profile of the configuration is returned in "profile"
360 * The entrypoint of the configuration is returned in "entrypoint"
361 * The caller must provide an "attrib_list" array that can hold at least
362 * vaMaxNumConfigAttributes() entries. The actual number of attributes
363 * returned in "attrib_list" is returned in "num_attribs"
365 VAStatus vaQueryConfigAttributes (
367 VAConfigID config_id,
368 VAProfile *profile, /* out */
369 VAEntrypoint *entrypoint, /* out */
370 VAConfigAttrib *attrib_list,/* out */
371 int *num_attribs /* out */
376 * Contexts and Surfaces
378 * Context represents a "virtual" video decode pipeline. Surfaces are render
379 * targets for a given context. The data in the surfaces are not accessible
380 * to the client and the internal data format of the surface is implementatin
383 * Surfaces will be bound to a context when the context is created. Once
384 * a surface is bound to a given context, it can not be used to create
385 * another context. The association is removed when the context is destroyed
387 * Both contexts and surfaces are identified by unique IDs and its
388 * implementation specific internals are kept opaque to the clients
391 typedef VAGenericID VAContextID;
393 typedef VAGenericID VASurfaceID;
395 #define VA_INVALID_ID 0xffffffff
396 #define VA_INVALID_SURFACE VA_INVALID_ID
399 * vaCreateSurfaces - Create an array of surfaces used for decode and display
401 * width: surface width
402 * height: surface height
403 * format: VA_RT_FORMAT_YUV420, VA_RT_FORMAT_YUV422 or VA_RT_FORMAT_YUV444
404 * num_surfaces: number of surfaces to be created
405 * surfaces: array of surfaces created upon return
407 VAStatus vaCreateSurfaces (
413 VASurfaceID *surfaces /* out */
418 * vaDestroySurfaces - Destroy resources associated with surfaces.
419 * Surfaces can only be destroyed after the context associated has been
422 * surfaces: array of surfaces to destroy
423 * num_surfaces: number of surfaces in the array to be destroyed.
425 VAStatus vaDestroySurfaces (
427 VASurfaceID *surfaces,
431 #define VA_PROGRESSIVE 0x1
433 * vaCreateContext - Create a context
435 * config_id: configuration for the context
436 * picture_width: coded picture width
437 * picture_height: coded picture height
438 * flag: any combination of the following:
439 * VA_PROGRESSIVE (only progressive frame pictures in the sequence when set)
440 * render_targets: render targets (surfaces) tied to the context
441 * num_render_targets: number of render targets in the above array
442 * context: created context id upon return
444 VAStatus vaCreateContext (
446 VAConfigID config_id,
450 VASurfaceID *render_targets,
451 int num_render_targets,
452 VAContextID *context /* out */
456 * vaDestroyContext - Destroy a context
458 * context: context to be destroyed
460 VAStatus vaDestroyContext (
467 * Buffers are used to pass various types of data from the
468 * client to the server. The server maintains a data store
469 * for each buffer created, and the client idenfies a buffer
470 * through a unique buffer id assigned by the server.
473 typedef VAGenericID VABufferID;
477 VAPictureParameterBufferType = 0,
478 VAIQMatrixBufferType = 1,
479 VABitPlaneBufferType = 2,
480 VASliceGroupMapBufferType = 3,
481 VASliceParameterBufferType = 4,
482 VASliceDataBufferType = 5,
483 VAMacroblockParameterBufferType = 6,
484 VAResidualDataBufferType = 7,
485 VADeblockingParameterBufferType = 8,
486 VAImageBufferType = 9,
487 VAProtectedSliceDataBufferType = 10,
488 VAQMatrixBufferType = 11,
489 /* Following are encode buffer types */
490 VAEncCodedBufferType = 21,
491 VAEncSequenceParameterBufferType = 22,
492 VAEncPictureParameterBufferType = 23,
493 VAEncSliceParameterBufferType = 24,
494 VAEncH264VUIBufferType = 25,
495 VAEncH264SEIBufferType = 26,
500 * There will be cases where the bitstream buffer will not have enough room to hold
501 * the data for the entire slice, and the following flags will be used in the slice
502 * parameter to signal to the server for the possible cases.
503 * If a slice parameter buffer and slice data buffer pair is sent to the server with
504 * the slice data partially in the slice data buffer (BEGIN and MIDDLE cases below),
505 * then a slice parameter and data buffer needs to be sent again to complete this slice.
507 #define VA_SLICE_DATA_FLAG_ALL 0x00 /* whole slice is in the buffer */
508 #define VA_SLICE_DATA_FLAG_BEGIN 0x01 /* The beginning of the slice is in the buffer but the end if not */
509 #define VA_SLICE_DATA_FLAG_MIDDLE 0x02 /* Neither beginning nor end of the slice is in the buffer */
510 #define VA_SLICE_DATA_FLAG_END 0x04 /* end of the slice is in the buffer */
512 /* Codec-independent Slice Parameter Buffer base */
513 typedef struct _VASliceParameterBufferBase
515 unsigned int slice_data_size; /* number of bytes in the slice data buffer for this slice */
516 unsigned int slice_data_offset; /* the offset to the first byte of slice data */
517 unsigned int slice_data_flag; /* see VA_SLICE_DATA_FLAG_XXX definitions */
518 } VASliceParameterBufferBase;
521 /****************************
522 * JEPG data structure
523 ***************************/
524 typedef struct _VAQMatrixBufferJPEG
526 int load_lum_quantiser_matrix;
527 int load_chroma_quantiser_matrix;
528 unsigned char lum_quantiser_matrix[64];
529 unsigned char chroma_quantiser_matrix[64];
530 } VAQMatrixBufferJPEG;
532 typedef struct _VAEncPictureParameterBufferJPEG
534 VASurfaceID reconstructed_picture;
535 unsigned short picture_width;
536 unsigned short picture_height;
537 VABufferID coded_buf;
538 } VAEncPictureParameterBufferJPEG;
541 /****************************
542 * MPEG-2 data structures
543 ****************************/
545 /* MPEG-2 Picture Parameter Buffer */
547 * For each frame or field, and before any slice data, a single
548 * picture parameter buffer must be send.
550 typedef struct _VAPictureParameterBufferMPEG2
552 unsigned short horizontal_size;
553 unsigned short vertical_size;
554 VASurfaceID forward_reference_picture;
555 VASurfaceID backward_reference_picture;
556 /* meanings of the following fields are the same as in the standard */
557 int picture_coding_type;
558 int f_code; /* pack all four fcode into this */
561 unsigned int intra_dc_precision : 2;
562 unsigned int picture_structure : 2;
563 unsigned int top_field_first : 1;
564 unsigned int frame_pred_frame_dct : 1;
565 unsigned int concealment_motion_vectors : 1;
566 unsigned int q_scale_type : 1;
567 unsigned int intra_vlc_format : 1;
568 unsigned int alternate_scan : 1;
569 unsigned int repeat_first_field : 1;
570 unsigned int progressive_frame : 1;
571 unsigned int is_first_field : 1; /* indicate whether the current field
572 * is the first field for field picture
576 } picture_coding_extension;
577 } VAPictureParameterBufferMPEG2;
579 /* MPEG-2 Inverse Quantization Matrix Buffer */
580 typedef struct _VAIQMatrixBufferMPEG2
582 int load_intra_quantiser_matrix;
583 int load_non_intra_quantiser_matrix;
584 int load_chroma_intra_quantiser_matrix;
585 int load_chroma_non_intra_quantiser_matrix;
586 unsigned char intra_quantiser_matrix[64];
587 unsigned char non_intra_quantiser_matrix[64];
588 unsigned char chroma_intra_quantiser_matrix[64];
589 unsigned char chroma_non_intra_quantiser_matrix[64];
590 } VAIQMatrixBufferMPEG2;
592 /* MPEG-2 Slice Parameter Buffer */
593 typedef struct _VASliceParameterBufferMPEG2
595 unsigned int slice_data_size;/* number of bytes in the slice data buffer for this slice */
596 unsigned int slice_data_offset;/* the offset to the first byte of slice data */
597 unsigned int slice_data_flag; /* see VA_SLICE_DATA_FLAG_XXX defintions */
598 unsigned int macroblock_offset;/* the offset to the first bit of MB from the first byte of slice data */
599 unsigned int slice_horizontal_position;
600 unsigned int slice_vertical_position;
601 int quantiser_scale_code;
602 int intra_slice_flag;
603 } VASliceParameterBufferMPEG2;
605 /* MPEG-2 Macroblock Parameter Buffer */
606 typedef struct _VAMacroblockParameterBufferMPEG2
608 unsigned short macroblock_address;
610 * macroblock_address (in raster scan order)
612 * bottom-right: picture-height-in-mb*picture-width-in-mb - 1
614 unsigned char macroblock_type; /* see definition below */
617 unsigned int frame_motion_type : 2;
618 unsigned int field_motion_type : 2;
619 unsigned int dct_type : 1;
623 unsigned char motion_vertical_field_select;
625 * motion_vertical_field_select:
626 * see section 6.3.17.2 in the spec
627 * only the lower 4 bits are used
628 * bit 0: first vector forward
629 * bit 1: first vector backward
630 * bit 2: second vector forward
631 * bit 3: second vector backward
633 short PMV[2][2][2]; /* see Table 7-7 in the spec */
634 unsigned short coded_block_pattern;
636 * The bitplanes for coded_block_pattern are described
637 * in Figure 6.10-12 in the spec
640 /* Number of skipped macroblocks after this macroblock */
641 unsigned short num_skipped_macroblocks;
642 } VAMacroblockParameterBufferMPEG2;
645 * OR'd flags for macroblock_type (section 6.3.17.1 in the spec)
647 #define VA_MB_TYPE_MOTION_FORWARD 0x02
648 #define VA_MB_TYPE_MOTION_BACKWARD 0x04
649 #define VA_MB_TYPE_MOTION_PATTERN 0x08
650 #define VA_MB_TYPE_MOTION_INTRA 0x10
653 * MPEG-2 Residual Data Buffer
654 * For each macroblock, there wil be 64 shorts (16-bit) in the
655 * residual data buffer
658 /****************************
659 * MPEG-4 Part 2 data structures
660 ****************************/
662 /* MPEG-4 Picture Parameter Buffer */
664 * For each frame or field, and before any slice data, a single
665 * picture parameter buffer must be send.
667 typedef struct _VAPictureParameterBufferMPEG4
669 unsigned short vop_width;
670 unsigned short vop_height;
671 VASurfaceID forward_reference_picture;
672 VASurfaceID backward_reference_picture;
675 unsigned int short_video_header : 1;
676 unsigned int chroma_format : 2;
677 unsigned int interlaced : 1;
678 unsigned int obmc_disable : 1;
679 unsigned int sprite_enable : 2;
680 unsigned int sprite_warping_accuracy : 2;
681 unsigned int quant_type : 1;
682 unsigned int quarter_sample : 1;
683 unsigned int data_partitioned : 1;
684 unsigned int reversible_vlc : 1;
685 unsigned int resync_marker_disable : 1;
689 unsigned char no_of_sprite_warping_points;
690 short sprite_trajectory_du[3];
691 short sprite_trajectory_dv[3];
692 unsigned char quant_precision;
695 unsigned int vop_coding_type : 2;
696 unsigned int backward_reference_vop_coding_type : 2;
697 unsigned int vop_rounding_type : 1;
698 unsigned int intra_dc_vlc_thr : 3;
699 unsigned int top_field_first : 1;
700 unsigned int alternate_vertical_scan_flag : 1;
704 unsigned char vop_fcode_forward;
705 unsigned char vop_fcode_backward;
706 unsigned short vop_time_increment_resolution;
707 /* short header related */
708 unsigned char num_gobs_in_vop;
709 unsigned char num_macroblocks_in_gob;
710 /* for direct mode prediction */
713 } VAPictureParameterBufferMPEG4;
715 /* MPEG-4 Inverse Quantization Matrix Buffer */
716 typedef struct _VAIQMatrixBufferMPEG4
718 int load_intra_quant_mat;
719 int load_non_intra_quant_mat;
720 unsigned char intra_quant_mat[64];
721 unsigned char non_intra_quant_mat[64];
722 } VAIQMatrixBufferMPEG4;
724 /* MPEG-4 Slice Parameter Buffer */
725 typedef struct _VASliceParameterBufferMPEG4
727 unsigned int slice_data_size;/* number of bytes in the slice data buffer for this slice */
728 unsigned int slice_data_offset;/* the offset to the first byte of slice data */
729 unsigned int slice_data_flag; /* see VA_SLICE_DATA_FLAG_XXX defintions */
730 unsigned int macroblock_offset;/* the offset to the first bit of MB from the first byte of slice data */
731 unsigned int macroblock_number;
733 } VASliceParameterBufferMPEG4;
739 typedef enum /* see 7.1.1.32 */
742 VAMvMode1MvHalfPel = 1,
743 VAMvMode1MvHalfPelBilinear = 2,
745 VAMvModeIntensityCompensation = 4
748 /* VC-1 Picture Parameter Buffer */
750 * For each picture, and before any slice data, a picture parameter
751 * buffer must be send. Multiple picture parameter buffers may be
752 * sent for a single picture. In that case picture parameters will
753 * apply to all slice data that follow it until a new picture
754 * parameter buffer is sent.
757 * pic_quantizer_type should be set to the applicable quantizer
758 * type as defined by QUANTIZER (J.1.19) and either
759 * PQUANTIZER (7.1.1.8) or PQINDEX (7.1.1.6)
761 typedef struct _VAPictureParameterBufferVC1
763 VASurfaceID forward_reference_picture;
764 VASurfaceID backward_reference_picture;
765 /* if out-of-loop post-processing is done on the render
766 target, then we need to keep the in-loop decoded
767 picture as a reference picture */
768 VASurfaceID inloop_decoded_picture;
770 /* sequence layer for AP or meta data for SP and MP */
773 unsigned int pulldown : 1; /* SEQUENCE_LAYER::PULLDOWN */
774 unsigned int interlace : 1; /* SEQUENCE_LAYER::INTERLACE */
775 unsigned int tfcntrflag : 1; /* SEQUENCE_LAYER::TFCNTRFLAG */
776 unsigned int finterpflag : 1; /* SEQUENCE_LAYER::FINTERPFLAG */
777 unsigned int psf : 1; /* SEQUENCE_LAYER::PSF */
778 unsigned int multires : 1; /* METADATA::MULTIRES */
779 unsigned int overlap : 1; /* METADATA::OVERLAP */
780 unsigned int syncmarker : 1; /* METADATA::SYNCMARKER */
781 unsigned int rangered : 1; /* METADATA::RANGERED */
782 unsigned int max_b_frames : 3; /* METADATA::MAXBFRAMES */
787 unsigned short coded_width; /* ENTRY_POINT_LAYER::CODED_WIDTH */
788 unsigned short coded_height; /* ENTRY_POINT_LAYER::CODED_HEIGHT */
791 unsigned int broken_link : 1; /* ENTRY_POINT_LAYER::BROKEN_LINK */
792 unsigned int closed_entry : 1; /* ENTRY_POINT_LAYER::CLOSED_ENTRY */
793 unsigned int panscan_flag : 1; /* ENTRY_POINT_LAYER::PANSCAN_FLAG */
794 unsigned int loopfilter : 1; /* ENTRY_POINT_LAYER::LOOPFILTER */
798 unsigned char conditional_overlap_flag; /* ENTRY_POINT_LAYER::CONDOVER */
799 unsigned char fast_uvmc_flag; /* ENTRY_POINT_LAYER::FASTUVMC */
802 unsigned int luma_flag : 1; /* ENTRY_POINT_LAYER::RANGE_MAPY_FLAG */
803 unsigned int luma : 3; /* ENTRY_POINT_LAYER::RANGE_MAPY */
804 unsigned int chroma_flag : 1; /* ENTRY_POINT_LAYER::RANGE_MAPUV_FLAG */
805 unsigned int chroma : 3; /* ENTRY_POINT_LAYER::RANGE_MAPUV */
808 } range_mapping_fields;
810 unsigned char b_picture_fraction; /* PICTURE_LAYER::BFRACTION */
811 unsigned char cbp_table; /* PICTURE_LAYER::CBPTAB/ICBPTAB */
812 unsigned char mb_mode_table; /* PICTURE_LAYER::MBMODETAB */
813 unsigned char range_reduction_frame;/* PICTURE_LAYER::RANGEREDFRM */
814 unsigned char rounding_control; /* PICTURE_LAYER::RNDCTRL */
815 unsigned char post_processing; /* PICTURE_LAYER::POSTPROC */
816 unsigned char picture_resolution_index; /* PICTURE_LAYER::RESPIC */
817 unsigned char luma_scale; /* PICTURE_LAYER::LUMSCALE */
818 unsigned char luma_shift; /* PICTURE_LAYER::LUMSHIFT */
821 unsigned int picture_type : 3; /* PICTURE_LAYER::PTYPE */
822 unsigned int frame_coding_mode : 3; /* PICTURE_LAYER::FCM */
823 unsigned int top_field_first : 1; /* PICTURE_LAYER::TFF */
824 unsigned int is_first_field : 1; /* set to 1 if it is the first field */
825 unsigned int intensity_compensation : 1; /* PICTURE_LAYER::INTCOMP */
831 unsigned int mv_type_mb : 1; /* PICTURE::MVTYPEMB */
832 unsigned int direct_mb : 1; /* PICTURE::DIRECTMB */
833 unsigned int skip_mb : 1; /* PICTURE::SKIPMB */
834 unsigned int field_tx : 1; /* PICTURE::FIELDTX */
835 unsigned int forward_mb : 1; /* PICTURE::FORWARDMB */
836 unsigned int ac_pred : 1; /* PICTURE::ACPRED */
837 unsigned int overflags : 1; /* PICTURE::OVERFLAGS */
843 unsigned int bp_mv_type_mb : 1; /* PICTURE::MVTYPEMB */
844 unsigned int bp_direct_mb : 1; /* PICTURE::DIRECTMB */
845 unsigned int bp_skip_mb : 1; /* PICTURE::SKIPMB */
846 unsigned int bp_field_tx : 1; /* PICTURE::FIELDTX */
847 unsigned int bp_forward_mb : 1; /* PICTURE::FORWARDMB */
848 unsigned int bp_ac_pred : 1; /* PICTURE::ACPRED */
849 unsigned int bp_overflags : 1; /* PICTURE::OVERFLAGS */
852 } bitplane_present; /* signal what bitplane is being passed via the bitplane buffer */
855 unsigned int reference_distance_flag : 1;/* PICTURE_LAYER::REFDIST_FLAG */
856 unsigned int reference_distance : 5;/* PICTURE_LAYER::REFDIST */
857 unsigned int num_reference_pictures: 1;/* PICTURE_LAYER::NUMREF */
858 unsigned int reference_field_pic_indicator : 1;/* PICTURE_LAYER::REFFIELD */
864 unsigned int mv_mode : 3; /* PICTURE_LAYER::MVMODE */
865 unsigned int mv_mode2 : 3; /* PICTURE_LAYER::MVMODE2 */
866 unsigned int mv_table : 3; /* PICTURE_LAYER::MVTAB/IMVTAB */
867 unsigned int two_mv_block_pattern_table: 2; /* PICTURE_LAYER::2MVBPTAB */
868 unsigned int four_mv_switch : 1; /* PICTURE_LAYER::4MVSWITCH */
869 unsigned int four_mv_block_pattern_table : 2; /* PICTURE_LAYER::4MVBPTAB */
870 unsigned int extended_mv_flag : 1; /* ENTRY_POINT_LAYER::EXTENDED_MV */
871 unsigned int extended_mv_range : 2; /* PICTURE_LAYER::MVRANGE */
872 unsigned int extended_dmv_flag : 1; /* ENTRY_POINT_LAYER::EXTENDED_DMV */
873 unsigned int extended_dmv_range : 2; /* PICTURE_LAYER::DMVRANGE */
879 unsigned int dquant : 2; /* ENTRY_POINT_LAYER::DQUANT */
880 unsigned int quantizer : 2; /* ENTRY_POINT_LAYER::QUANTIZER */
881 unsigned int half_qp : 1; /* PICTURE_LAYER::HALFQP */
882 unsigned int pic_quantizer_scale : 5;/* PICTURE_LAYER::PQUANT */
883 unsigned int pic_quantizer_type : 1;/* PICTURE_LAYER::PQUANTIZER */
884 unsigned int dq_frame : 1; /* VOPDQUANT::DQUANTFRM */
885 unsigned int dq_profile : 2; /* VOPDQUANT::DQPROFILE */
886 unsigned int dq_sb_edge : 2; /* VOPDQUANT::DQSBEDGE */
887 unsigned int dq_db_edge : 2; /* VOPDQUANT::DQDBEDGE */
888 unsigned int dq_binary_level : 1; /* VOPDQUANT::DQBILEVEL */
889 unsigned int alt_pic_quantizer : 5;/* VOPDQUANT::ALTPQUANT */
892 } pic_quantizer_fields;
895 unsigned int variable_sized_transform_flag : 1;/* ENTRY_POINT_LAYER::VSTRANSFORM */
896 unsigned int mb_level_transform_type_flag : 1;/* PICTURE_LAYER::TTMBF */
897 unsigned int frame_level_transform_type : 2;/* PICTURE_LAYER::TTFRM */
898 unsigned int transform_ac_codingset_idx1 : 2;/* PICTURE_LAYER::TRANSACFRM */
899 unsigned int transform_ac_codingset_idx2 : 2;/* PICTURE_LAYER::TRANSACFRM2 */
900 unsigned int intra_transform_dc_table : 1;/* PICTURE_LAYER::TRANSDCTAB */
904 } VAPictureParameterBufferVC1;
906 /* VC-1 Bitplane Buffer
907 There will be at most three bitplanes coded in any picture header. To send
908 the bitplane data more efficiently, each byte is divided in two nibbles, with
909 each nibble carrying three bitplanes for one macroblock. The following table
910 shows the bitplane data arrangement within each nibble based on the picture
913 Picture Type Bit3 Bit2 Bit1 Bit0
914 I or BI OVERFLAGS ACPRED FIELDTX
915 P MYTYPEMB SKIPMB DIRECTMB
916 B FORWARDMB SKIPMB DIRECTMB
918 Within each byte, the lower nibble is for the first MB and the upper nibble is
919 for the second MB. E.g. the lower nibble of the first byte in the bitplane
920 buffer is for Macroblock #1 and the upper nibble of the first byte is for
921 Macroblock #2 in the first row.
924 /* VC-1 Slice Parameter Buffer */
925 typedef struct _VASliceParameterBufferVC1
927 unsigned int slice_data_size;/* number of bytes in the slice data buffer for this slice */
928 unsigned int slice_data_offset;/* the offset to the first byte of slice data */
929 unsigned int slice_data_flag; /* see VA_SLICE_DATA_FLAG_XXX defintions */
930 unsigned int macroblock_offset;/* the offset to the first bit of MB from the first byte of slice data */
931 unsigned int slice_vertical_position;
932 } VASliceParameterBufferVC1;
934 /* VC-1 Slice Data Buffer */
936 This is simplely a buffer containing raw bit-stream bytes
939 /****************************
940 * H.264/AVC data structures
941 ****************************/
943 typedef struct _VAPictureH264
945 VASurfaceID picture_id;
946 unsigned int frame_idx;
948 unsigned int TopFieldOrderCnt;
949 unsigned int BottomFieldOrderCnt;
951 /* flags in VAPictureH264 could be OR of the following */
952 #define VA_PICTURE_H264_INVALID 0x00000001
953 #define VA_PICTURE_H264_TOP_FIELD 0x00000002
954 #define VA_PICTURE_H264_BOTTOM_FIELD 0x00000004
955 #define VA_PICTURE_H264_SHORT_TERM_REFERENCE 0x00000008
956 #define VA_PICTURE_H264_LONG_TERM_REFERENCE 0x00000010
958 /* H.264 Picture Parameter Buffer */
960 * For each picture, and before any slice data, a single
961 * picture parameter buffer must be send.
963 typedef struct _VAPictureParameterBufferH264
965 VAPictureH264 CurrPic;
966 VAPictureH264 ReferenceFrames[16]; /* in DPB */
967 unsigned short picture_width_in_mbs_minus1;
968 unsigned short picture_height_in_mbs_minus1;
969 unsigned char bit_depth_luma_minus8;
970 unsigned char bit_depth_chroma_minus8;
971 unsigned char num_ref_frames;
974 unsigned int chroma_format_idc : 2;
975 unsigned int residual_colour_transform_flag : 1;
976 unsigned int gaps_in_frame_num_value_allowed_flag : 1;
977 unsigned int frame_mbs_only_flag : 1;
978 unsigned int mb_adaptive_frame_field_flag : 1;
979 unsigned int direct_8x8_inference_flag : 1;
980 unsigned int MinLumaBiPredSize8x8 : 1; /* see A.3.3.2 */
981 unsigned int log2_max_frame_num_minus4 : 4;
982 unsigned int pic_order_cnt_type : 2;
983 unsigned int log2_max_pic_order_cnt_lsb_minus4 : 4;
984 unsigned int delta_pic_order_always_zero_flag : 1;
988 unsigned char num_slice_groups_minus1;
989 unsigned char slice_group_map_type;
990 unsigned short slice_group_change_rate_minus1;
991 signed char pic_init_qp_minus26;
992 signed char pic_init_qs_minus26;
993 signed char chroma_qp_index_offset;
994 signed char second_chroma_qp_index_offset;
997 unsigned int entropy_coding_mode_flag : 1;
998 unsigned int weighted_pred_flag : 1;
999 unsigned int weighted_bipred_idc : 2;
1000 unsigned int transform_8x8_mode_flag : 1;
1001 unsigned int field_pic_flag : 1;
1002 unsigned int constrained_intra_pred_flag : 1;
1003 unsigned int pic_order_present_flag : 1;
1004 unsigned int deblocking_filter_control_present_flag : 1;
1005 unsigned int redundant_pic_cnt_present_flag : 1;
1006 unsigned int reference_pic_flag : 1; /* nal_ref_idc != 0 */
1010 unsigned short frame_num;
1011 } VAPictureParameterBufferH264;
1013 /* H.264 Inverse Quantization Matrix Buffer */
1014 typedef struct _VAIQMatrixBufferH264
1016 unsigned char ScalingList4x4[6][16];
1017 unsigned char ScalingList8x8[2][64];
1018 } VAIQMatrixBufferH264;
1021 * H.264 Slice Group Map Buffer
1022 * When VAPictureParameterBufferH264::num_slice_group_minus1 is not equal to 0,
1023 * A slice group map buffer should be sent for each picture if required. The buffer
1024 * is sent only when there is a change in the mapping values.
1025 * The slice group map buffer map "map units" to slice groups as specified in
1026 * section 8.2.2 of the H.264 spec. The buffer will contain one byte for each macroblock
1027 * in raster scan order
1030 /* H.264 Slice Parameter Buffer */
1031 typedef struct _VASliceParameterBufferH264
1033 unsigned int slice_data_size;/* number of bytes in the slice data buffer for this slice */
1034 unsigned int slice_data_offset;/* the offset to the NAL start code for this slice */
1035 unsigned int slice_data_flag; /* see VA_SLICE_DATA_FLAG_XXX defintions */
1036 unsigned short slice_data_bit_offset; /* bit offset from NAL start code to the beginning of slice data */
1037 unsigned short first_mb_in_slice;
1038 unsigned char slice_type;
1039 unsigned char direct_spatial_mv_pred_flag;
1040 unsigned char num_ref_idx_l0_active_minus1;
1041 unsigned char num_ref_idx_l1_active_minus1;
1042 unsigned char cabac_init_idc;
1043 char slice_qp_delta;
1044 unsigned char disable_deblocking_filter_idc;
1045 char slice_alpha_c0_offset_div2;
1046 char slice_beta_offset_div2;
1047 VAPictureH264 RefPicList0[32]; /* See 8.2.4.2 */
1048 VAPictureH264 RefPicList1[32]; /* See 8.2.4.2 */
1049 unsigned char luma_log2_weight_denom;
1050 unsigned char chroma_log2_weight_denom;
1051 unsigned char luma_weight_l0_flag;
1052 short luma_weight_l0[32];
1053 short luma_offset_l0[32];
1054 unsigned char chroma_weight_l0_flag;
1055 short chroma_weight_l0[32][2];
1056 short chroma_offset_l0[32][2];
1057 unsigned char luma_weight_l1_flag;
1058 short luma_weight_l1[32];
1059 short luma_offset_l1[32];
1060 unsigned char chroma_weight_l1_flag;
1061 short chroma_weight_l1[32][2];
1062 short chroma_offset_l1[32][2];
1063 } VASliceParameterBufferH264;
1065 /****************************
1066 * Common encode data structures
1067 ****************************/
1070 VAEncPictureTypeIntra = 0,
1071 VAEncPictureTypePredictive = 1,
1072 VAEncPictureTypeBidirectional = 2,
1075 /* Encode Slice Parameter Buffer */
1076 typedef struct _VAEncSliceParameterBuffer
1078 unsigned int start_row_number; /* starting MB row number for this slice */
1079 unsigned int slice_height; /* slice height measured in MB */
1082 unsigned int is_intra : 1;
1083 unsigned int disable_deblocking_filter_idc : 2;
1087 } VAEncSliceParameterBuffer;
1089 /****************************
1090 * H.264 specific encode data structures
1091 ****************************/
1093 typedef struct _VAEncSequenceParameterBufferH264
1095 unsigned char seq_parameter_set_id;
1096 unsigned char level_idc;
1097 unsigned int intra_period;
1098 unsigned int intra_idr_period;
1099 unsigned int picture_width_in_mbs;
1100 unsigned int picture_height_in_mbs;
1101 unsigned int bits_per_second;
1102 unsigned int frame_rate;
1103 unsigned int initial_qp;
1104 unsigned int min_qp;
1105 unsigned int basic_unit_size;
1106 unsigned char vui_flag;
1107 } VAEncSequenceParameterBufferH264;
1109 typedef struct _VAEncPictureParameterBufferH264
1111 VASurfaceID reference_picture;
1112 VASurfaceID reconstructed_picture;
1113 VABufferID coded_buf;
1114 unsigned short picture_width;
1115 unsigned short picture_height;
1116 unsigned char last_picture; /* if set to 1 it indicates the last picture in the sequence */
1117 } VAEncPictureParameterBufferH264;
1119 /****************************
1120 * H.263 specific encode data structures
1121 ****************************/
1123 typedef struct _VAEncSequenceParameterBufferH263
1125 unsigned int intra_period;
1126 unsigned int bits_per_second;
1127 unsigned int frame_rate;
1128 unsigned int initial_qp;
1129 unsigned int min_qp;
1130 } VAEncSequenceParameterBufferH263;
1132 typedef struct _VAEncPictureParameterBufferH263
1134 VASurfaceID reference_picture;
1135 VASurfaceID reconstructed_picture;
1136 VABufferID coded_buf;
1137 unsigned short picture_width;
1138 unsigned short picture_height;
1139 VAEncPictureType picture_type;
1140 } VAEncPictureParameterBufferH263;
1142 /****************************
1143 * MPEG-4 specific encode data structures
1144 ****************************/
1146 typedef struct _VAEncSequenceParameterBufferMPEG4
1148 unsigned char profile_and_level_indication;
1149 unsigned int intra_period;
1150 unsigned int video_object_layer_width;
1151 unsigned int video_object_layer_height;
1152 unsigned int vop_time_increment_resolution;
1153 unsigned int fixed_vop_rate;
1154 unsigned int fixed_vop_time_increment;
1155 unsigned int bits_per_second;
1156 unsigned int frame_rate;
1157 unsigned int initial_qp;
1158 unsigned int min_qp;
1159 } VAEncSequenceParameterBufferMPEG4;
1161 typedef struct _VAEncPictureParameterBufferMPEG4
1163 VASurfaceID reference_picture;
1164 VASurfaceID reconstructed_picture;
1165 VABufferID coded_buf;
1166 unsigned short picture_width;
1167 unsigned short picture_height;
1168 unsigned int modulo_time_base; /* number of 1s */
1169 unsigned int vop_time_increment;
1170 VAEncPictureType picture_type;
1171 } VAEncPictureParameterBufferMPEG4;
1175 /* Buffer functions */
1178 * Creates a buffer for "num_elements" elements of "size" bytes and
1179 * initalize with "data".
1180 * if "data" is null, then the contents of the buffer data store
1182 * Basically there are two ways to get buffer data to the server side. One is
1183 * to call vaCreateBuffer() with a non-null "data", which results the data being
1184 * copied to the data store on the server side. A different method that
1185 * eliminates this copy is to pass null as "data" when calling vaCreateBuffer(),
1186 * and then use vaMapBuffer() to map the data store from the server side to the
1187 * client address space for access.
1188 * Note: image buffers are created by the library, not the client. Please see
1189 * vaCreateImage on how image buffers are managed.
1191 VAStatus vaCreateBuffer (
1193 VAContextID context,
1194 VABufferType type, /* in */
1195 unsigned int size, /* in */
1196 unsigned int num_elements, /* in */
1197 void *data, /* in */
1198 VABufferID *buf_id /* out */
1202 * Convey to the server how many valid elements are in the buffer.
1203 * e.g. if multiple slice parameters are being held in a single buffer,
1204 * this will communicate to the server the number of slice parameters
1205 * that are valid in the buffer.
1207 VAStatus vaBufferSetNumElements (
1209 VABufferID buf_id, /* in */
1210 unsigned int num_elements /* in */
1215 * device independent data structure for codedbuffer
1217 typedef struct _VACodedBufferSegment {
1218 unsigned int size; /* size of the data buffer in the coded buffer segment, in bytes */
1219 unsigned int bit_offset;/* bit offset into the data buffer where valid bitstream data begins */
1220 void *buf; /* pointer to the beginning of the data buffer in the coded buffer segment */
1221 void *next; /* pointer to the next VACodedBufferSegment */
1222 } VACodedBufferSegment;
1225 * Map data store of the buffer into the client's address space
1226 * vaCreateBuffer() needs to be called with "data" set to NULL before
1227 * calling vaMapBuffer()
1229 * if buffer type is VAEncCodedBufferType, pbuf points to link-list of
1230 * VACodedBufferSegment, and the list is terminated if "next" is NULL
1232 VAStatus vaMapBuffer (
1234 VABufferID buf_id, /* in */
1235 void **pbuf /* out */
1239 * After client making changes to a mapped data store, it needs to
1240 * "Unmap" it to let the server know that the data is ready to be
1241 * consumed by the server
1243 VAStatus vaUnmapBuffer (
1245 VABufferID buf_id /* in */
1249 * After this call, the buffer is deleted and this buffer_id is no longer valid
1250 * Only call this if the buffer is not going to be passed to vaRenderBuffer
1252 VAStatus vaDestroyBuffer (
1254 VABufferID buffer_id
1258 Render (Decode) Pictures
1260 A picture represents either a frame or a field.
1262 The Begin/Render/End sequence sends the decode buffers to the server
1266 * Get ready to decode a picture to a target surface
1268 VAStatus vaBeginPicture (
1270 VAContextID context,
1271 VASurfaceID render_target
1275 * Send decode buffers to the server.
1276 * Buffers are automatically destroyed afterwards
1278 VAStatus vaRenderPicture (
1280 VAContextID context,
1281 VABufferID *buffers,
1286 * Make the end of rendering for a picture.
1287 * The server should start processing all pending operations for this
1288 * surface. This call is non-blocking. The client can start another
1289 * Begin/Render/End sequence on a different render target.
1291 VAStatus vaEndPicture (
1303 * This function blocks until all pending operations on the render target
1304 * have been completed. Upon return it is safe to use the render target for a
1305 * different picture.
1307 VAStatus vaSyncSurface (
1309 VASurfaceID render_target
1314 VASurfaceRendering = 1, /* Rendering in progress */
1315 VASurfaceDisplaying = 2, /* Displaying in progress (not safe to render into it) */
1316 /* this status is useful if surface is used as the source */
1318 VASurfaceReady = 4, /* not being rendered or displayed */
1319 VASurfaceSkipped = 8 /* Indicate a skipped frame during encode */
1323 * Find out any pending ops on the render target
1325 VAStatus vaQuerySurfaceStatus (
1327 VASurfaceID render_target,
1328 VASurfaceStatus *status /* out */
1332 * Images and Subpictures
1333 * VAImage is used to either get the surface data to client memory, or
1334 * to copy image data in client memory to a surface.
1335 * Both images, subpictures and surfaces follow the same 2D coordinate system where origin
1336 * is at the upper left corner with positive X to the right and positive Y down
1338 #define VA_FOURCC(ch0, ch1, ch2, ch3) \
1339 ((unsigned long)(unsigned char) (ch0) | ((unsigned long)(unsigned char) (ch1) << 8) | \
1340 ((unsigned long)(unsigned char) (ch2) << 16) | ((unsigned long)(unsigned char) (ch3) << 24 ))
1342 /* a few common FourCCs */
1343 #define VA_FOURCC_NV12 0x3231564E
1344 #define VA_FOURCC_AI44 0x34344149
1345 #define VA_FOURCC_RGBA 0x41424752
1346 #define VA_FOURCC_UYVY 0x59565955
1347 #define VA_FOURCC_YUY2 0x32595559
1348 #define VA_FOURCC_AYUV 0x56555941
1349 #define VA_FOURCC_NV11 0x3131564e
1350 #define VA_FOURCC_YV12 0x32315659
1351 #define VA_FOURCC_P208 0x38303250
1352 #define VA_FOURCC_IYUV 0x56555949
1355 #define VA_LSB_FIRST 1
1356 #define VA_MSB_FIRST 2
1358 typedef struct _VAImageFormat
1360 unsigned int fourcc;
1361 unsigned int byte_order; /* VA_LSB_FIRST, VA_MSB_FIRST */
1362 unsigned int bits_per_pixel;
1363 /* for RGB formats */
1364 unsigned int depth; /* significant bits per pixel */
1365 unsigned int red_mask;
1366 unsigned int green_mask;
1367 unsigned int blue_mask;
1368 unsigned int alpha_mask;
1371 typedef VAGenericID VAImageID;
1373 typedef struct _VAImage
1375 VAImageID image_id; /* uniquely identify this image */
1376 VAImageFormat format;
1377 VABufferID buf; /* image data buffer */
1379 * Image data will be stored in a buffer of type VAImageBufferType to facilitate
1380 * data store on the server side for optimal performance. The buffer will be
1381 * created by the CreateImage function, and proper storage allocated based on the image
1382 * size and format. This buffer is managed by the library implementation, and
1383 * accessed by the client through the buffer Map/Unmap functions.
1385 unsigned short width;
1386 unsigned short height;
1387 unsigned int data_size;
1388 unsigned int num_planes; /* can not be greater than 3 */
1390 * An array indicating the scanline pitch in bytes for each plane.
1391 * Each plane may have a different pitch. Maximum 3 planes for planar formats
1393 unsigned int pitches[3];
1395 * An array indicating the byte offset from the beginning of the image data
1396 * to the start of each plane.
1398 unsigned int offsets[3];
1400 /* The following fields are only needed for paletted formats */
1401 int num_palette_entries; /* set to zero for non-palette images */
1403 * Each component is one byte and entry_bytes indicates the number of components in
1404 * each entry (eg. 3 for YUV palette entries). set to zero for non-palette images
1408 * An array of ascii characters describing the order of the components within the bytes.
1409 * Only entry_bytes characters of the string are used.
1411 char component_order[4];
1414 /* Get maximum number of image formats supported by the implementation */
1415 int vaMaxNumImageFormats (
1420 * Query supported image formats
1421 * The caller must provide a "format_list" array that can hold at
1422 * least vaMaxNumImageFormats() entries. The actual number of formats
1423 * returned in "format_list" is returned in "num_formats".
1425 VAStatus vaQueryImageFormats (
1427 VAImageFormat *format_list, /* out */
1428 int *num_formats /* out */
1432 * Create a VAImage structure
1433 * The width and height fields returned in the VAImage structure may get
1434 * enlarged for some YUV formats. Upon return from this function,
1435 * image->buf has been created and proper storage allocated by the library.
1436 * The client can access the image through the Map/Unmap calls.
1438 VAStatus vaCreateImage (
1440 VAImageFormat *format,
1443 VAImage *image /* out */
1447 * Should call DestroyImage before destroying the surface it is bound to
1449 VAStatus vaDestroyImage (
1454 VAStatus vaSetImagePalette (
1458 * pointer to an array holding the palette data. The size of the array is
1459 * num_palette_entries * entry_bytes in size. The order of the components
1460 * in the palette is described by the component_order in VAImage struct
1462 unsigned char *palette
1466 * Retrive surface data into a VAImage
1467 * Image must be in a format supported by the implementation
1469 VAStatus vaGetImage (
1471 VASurfaceID surface,
1472 int x, /* coordinates of the upper left source pixel */
1474 unsigned int width, /* width and height of the region */
1475 unsigned int height,
1480 * Copy data from a VAImage to a surface
1481 * Image must be in a format supported by the implementation
1482 * Returns a VA_STATUS_ERROR_SURFACE_BUSY if the surface
1483 * shouldn't be rendered into when this is called
1485 VAStatus vaPutImage (
1487 VASurfaceID surface,
1491 unsigned int src_width,
1492 unsigned int src_height,
1495 unsigned int dest_width,
1496 unsigned int dest_height
1500 * Derive an VAImage from an existing surface.
1501 * This interface will derive a VAImage and corresponding image buffer from
1502 * an existing VA Surface. The image buffer can then be mapped/unmapped for
1503 * direct CPU access. This operation is only possible on implementations with
1504 * direct rendering capabilities and internal surface formats that can be
1505 * represented with a VAImage. When the operation is not possible this interface
1506 * will return VA_STATUS_ERROR_OPERATION_FAILED. Clients should then fall back
1507 * to using vaCreateImage + vaPutImage to accomplish the same task in an
1510 * Implementations should only return success when the resulting image buffer
1511 * would be useable with vaMap/Unmap.
1513 * When directly accessing a surface special care must be taken to insure
1514 * proper synchronization with the graphics hardware. Clients should call
1515 * vaQuerySurfaceStatus to insure that a surface is not the target of concurrent
1516 * rendering or currently being displayed by an overlay.
1518 * Additionally nothing about the contents of a surface should be assumed
1519 * following a vaPutSurface. Implementations are free to modify the surface for
1520 * scaling or subpicture blending within a call to vaPutImage.
1522 * Calls to vaPutImage or vaGetImage using the same surface from which the image
1523 * has been derived will return VA_STATUS_ERROR_SURFACE_BUSY. vaPutImage or
1524 * vaGetImage with other surfaces is supported.
1526 * An image created with vaDeriveImage should be freed with vaDestroyImage. The
1527 * image and image buffer structures will be destroyed; however, the underlying
1528 * surface will remain unchanged until freed with vaDestroySurfaces.
1530 VAStatus vaDeriveImage (
1532 VASurfaceID surface,
1533 VAImage *image /* out */
1538 * Subpicture is a special type of image that can be blended
1539 * with a surface during vaPutSurface(). Subpicture can be used to render
1540 * DVD sub-titles or closed captioning text etc.
1543 typedef VAGenericID VASubpictureID;
1545 /* Get maximum number of subpicture formats supported by the implementation */
1546 int vaMaxNumSubpictureFormats (
1550 /* flags for subpictures */
1551 #define VA_SUBPICTURE_CHROMA_KEYING 0x0001
1552 #define VA_SUBPICTURE_GLOBAL_ALPHA 0x0002
1554 * Query supported subpicture formats
1555 * The caller must provide a "format_list" array that can hold at
1556 * least vaMaxNumSubpictureFormats() entries. The flags arrary holds the flag
1557 * for each format to indicate additional capabilities for that format. The actual
1558 * number of formats returned in "format_list" is returned in "num_formats".
1559 * flags: returned value to indicate addtional capabilities
1560 * VA_SUBPICTURE_CHROMA_KEYING - supports chroma-keying
1561 * VA_SUBPICTURE_GLOBAL_ALPHA - supports global alpha
1563 VAStatus vaQuerySubpictureFormats (
1565 VAImageFormat *format_list, /* out */
1566 unsigned int *flags, /* out */
1567 unsigned int *num_formats /* out */
1571 * Subpictures are created with an image associated.
1573 VAStatus vaCreateSubpicture (
1576 VASubpictureID *subpicture /* out */
1580 * Destroy the subpicture before destroying the image it is assocated to
1582 VAStatus vaDestroySubpicture (
1584 VASubpictureID subpicture
1588 * Bind an image to the subpicture. This image will now be associated with
1589 * the subpicture instead of the one at creation.
1591 VAStatus vaSetSubpictureImage (
1593 VASubpictureID subpicture,
1598 * If chromakey is enabled, then the area where the source value falls within
1599 * the chromakey [min, max] range is transparent
1600 * The chromakey component format is the following:
1601 * For RGB: [0:7] Red [8:15] Blue [16:23] Green
1602 * For YUV: [0:7] V [8:15] U [16:23] Y
1603 * The chromakey mask can be used to mask out certain components for chromakey
1606 VAStatus vaSetSubpictureChromakey (
1608 VASubpictureID subpicture,
1609 unsigned int chromakey_min,
1610 unsigned int chromakey_max,
1611 unsigned int chromakey_mask
1615 * Global alpha value is between 0 and 1. A value of 1 means fully opaque and
1616 * a value of 0 means fully transparent. If per-pixel alpha is also specified then
1617 * the overall alpha is per-pixel alpha multiplied by the global alpha
1619 VAStatus vaSetSubpictureGlobalAlpha (
1621 VASubpictureID subpicture,
1626 * vaAssociateSubpicture associates the subpicture with target_surfaces.
1627 * It defines the region mapping between the subpicture and the target
1628 * surfaces through source and destination rectangles (with the same width and height).
1629 * Both will be displayed at the next call to vaPutSurface. Additional
1630 * associations before the call to vaPutSurface simply overrides the association.
1632 VAStatus vaAssociateSubpicture (
1634 VASubpictureID subpicture,
1635 VASurfaceID *target_surfaces,
1637 short src_x, /* upper left offset in subpicture */
1639 unsigned short src_width,
1640 unsigned short src_height,
1641 short dest_x, /* upper left offset in surface */
1643 unsigned short dest_width,
1644 unsigned short dest_height,
1646 * whether to enable chroma-keying or global-alpha
1647 * see VA_SUBPICTURE_XXX values
1653 * vaDeassociateSubpicture removes the association of the subpicture with target_surfaces.
1655 VAStatus vaDeassociateSubpicture (
1657 VASubpictureID subpicture,
1658 VASurfaceID *target_surfaces,
1662 typedef struct _VARectangle
1666 unsigned short width;
1667 unsigned short height;
1671 * Display attributes
1672 * Display attributes are used to control things such as contrast, hue, saturation,
1673 * brightness etc. in the rendering process. The application can query what
1674 * attributes are supported by the driver, and then set the appropriate attributes
1675 * before calling vaPutSurface()
1677 /* PowerVR IEP Lite attributes */
1680 VADISPLAYATTRIB_BLE_OFF = 0x00,
1681 VADISPLAYATTRIB_BLE_LOW,
1682 VADISPLAYATTRIB_BLE_MEDIUM,
1683 VADISPLAYATTRIB_BLE_HIGH,
1684 VADISPLAYATTRIB_BLE_NONE,
1685 } VADisplayAttribBLEMode;
1689 VADISPLAYATTRIB_CSC_FORMAT_YCC_BT601 = 0x00,
1690 VADISPLAYATTRIB_CSC_FORMAT_YCC_BT709,
1691 VADISPLAYATTRIB_CSC_FORMAT_YCC_SMPTE_240,
1692 VADISPLAYATTRIB_CSC_FORMAT_RGB,
1693 VADISPLAYATTRIB_CSC_FORMAT_NONE,
1694 } VADisplayAttribCSCFormat;
1696 /* attribute value for VADisplayAttribRotation */
1697 #define VA_ROTATION_NONE 0x00000000
1698 #define VA_ROTATION_90 0x00000001
1699 #define VA_ROTATION_180 0x00000002
1700 #define VA_ROTATION_270 0x00000004
1702 /* attribute value for VADisplayAttribOutOfLoopDeblock */
1703 #define VA_OOL_DEBLOCKING_FALSE 0x00000000
1704 #define VA_OOL_DEBLOCKING_TRUE 0x00000001
1707 /* Currently defined display attribute types */
1710 VADisplayAttribBrightness = 0,
1711 VADisplayAttribContrast = 1,
1712 VADisplayAttribHue = 2,
1713 VADisplayAttribSaturation = 3,
1714 /* client can specifiy a background color for the target window */
1715 VADisplayAttribBackgroundColor = 4,
1717 * this is a gettable only attribute. For some implementations that use the
1718 * hardware overlay, after PutSurface is called, the surface can not be
1719 * re-used until after the subsequent PutSurface call. If this is the case
1720 * then the value for this attribute will be set to 1 so that the client
1721 * will not attempt to re-use the surface right after returning from a call
1724 VADisplayAttribDirectSurface = 5,
1725 VADisplayAttribRotation = 6,
1726 VADisplayAttribOutofLoopDeblock = 7,
1728 /* PowerVR IEP Lite specific attributes */
1729 VADisplayAttribBLEBlackMode = 8,
1730 VADisplayAttribBLEWhiteMode = 9,
1731 VADisplayAttribBlueStretch = 10,
1732 VADisplayAttribSkinColorCorrection = 11,
1733 VADisplayAttribCSCInputColorFormat = 12,
1734 VADisplayAttribCSCHue = 13,
1735 VADisplayAttribCSCSaturation = 14,
1736 VADisplayAttribCSCBrightness = 15,
1737 VADisplayAttribCSCContrast = 16,
1738 } VADisplayAttribType;
1740 /* flags for VADisplayAttribute */
1741 #define VA_DISPLAY_ATTRIB_NOT_SUPPORTED 0x0000
1742 #define VA_DISPLAY_ATTRIB_GETTABLE 0x0001
1743 #define VA_DISPLAY_ATTRIB_SETTABLE 0x0002
1745 typedef struct _VADisplayAttribute
1747 VADisplayAttribType type;
1750 int value; /* used by the set/get attribute functions */
1751 /* flags can be VA_DISPLAY_ATTRIB_GETTABLE or VA_DISPLAY_ATTRIB_SETTABLE or OR'd together */
1753 } VADisplayAttribute;
1755 /* Get maximum number of display attributs supported by the implementation */
1756 int vaMaxNumDisplayAttributes (
1761 * Query display attributes
1762 * The caller must provide a "attr_list" array that can hold at
1763 * least vaMaxNumDisplayAttributes() entries. The actual number of attributes
1764 * returned in "attr_list" is returned in "num_attributes".
1766 VAStatus vaQueryDisplayAttributes (
1768 VADisplayAttribute *attr_list, /* out */
1769 int *num_attributes /* out */
1773 * Get display attributes
1774 * This function returns the current attribute values in "attr_list".
1775 * Only attributes returned with VA_DISPLAY_ATTRIB_GETTABLE set in the "flags" field
1776 * from vaQueryDisplayAttributes() can have their values retrieved.
1778 VAStatus vaGetDisplayAttributes (
1780 VADisplayAttribute *attr_list, /* in/out */
1785 * Set display attributes
1786 * Only attributes returned with VA_DISPLAY_ATTRIB_SETTABLE set in the "flags" field
1787 * from vaQueryDisplayAttributes() can be set. If the attribute is not settable or
1788 * the value is out of range, the function returns VA_STATUS_ERROR_ATTR_NOT_SUPPORTED
1790 VAStatus vaSetDisplayAttributes (
1792 VADisplayAttribute *attr_list,