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21 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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 */
163 * Initialize the library
165 VAStatus vaInitialize (
167 int *major_version, /* out */
168 int *minor_version /* out */
172 * After this call, all library internal resources will be cleaned up
174 VAStatus vaTerminate (
179 * vaQueryVendorString returns a pointer to a zero-terminated string
180 * describing some aspects of the VA implemenation on a specific
181 * hardware accelerator. The format of the returned string is vendor
182 * specific and at the discretion of the implementer.
183 * e.g. for the Intel GMA500 implementation, an example would be:
184 * "Intel GMA500 - 2.0.0.32L.0005"
186 const char *vaQueryVendorString (
190 typedef int (*VAPrivFunc)();
193 * Return a function pointer given a function name in the library.
194 * This allows private interfaces into the library
196 VAPrivFunc vaGetLibFunc (
201 /* Currently defined profiles */
204 VAProfileMPEG2Simple = 0,
205 VAProfileMPEG2Main = 1,
206 VAProfileMPEG4Simple = 2,
207 VAProfileMPEG4AdvancedSimple = 3,
208 VAProfileMPEG4Main = 4,
209 VAProfileH264Baseline = 5,
210 VAProfileH264Main = 6,
211 VAProfileH264High = 7,
212 VAProfileVC1Simple = 8,
213 VAProfileVC1Main = 9,
214 VAProfileVC1Advanced = 10,
215 VAProfileH263Baseline = 11,
216 VAProfileJPEGBaseline = 12
220 * Currently defined entrypoints
226 VAEntrypointIDCT = 3,
227 VAEntrypointMoComp = 4,
228 VAEntrypointDeblocking = 5,
229 VAEntrypointEncSlice = 6, /* slice level encode */
230 VAEntrypointEncPicture = 7 /* pictuer encode, JPEG, etc */
233 /* Currently defined configuration attribute types */
236 VAConfigAttribRTFormat = 0,
237 VAConfigAttribSpatialResidual = 1,
238 VAConfigAttribSpatialClipping = 2,
239 VAConfigAttribIntraResidual = 3,
240 VAConfigAttribEncryption = 4,
241 VAConfigAttribRateControl = 5
242 } VAConfigAttribType;
245 * Configuration attributes
246 * If there is more than one value for an attribute, a default
247 * value will be assigned to the attribute if the client does not
248 * specify the attribute when creating a configuration
250 typedef struct _VAConfigAttrib {
251 VAConfigAttribType type;
252 unsigned int value; /* OR'd flags (bits) for this attribute */
255 /* attribute value for VAConfigAttribRTFormat */
256 #define VA_RT_FORMAT_YUV420 0x00000001
257 #define VA_RT_FORMAT_YUV422 0x00000002
258 #define VA_RT_FORMAT_YUV444 0x00000004
259 #define VA_RT_FORMAT_PROTECTED 0x80000000
261 /* attribute value for VAConfigAttribRateControl */
262 #define VA_RC_NONE 0x00000001
263 #define VA_RC_CBR 0x00000002
264 #define VA_RC_VBR 0x00000004
267 * if an attribute is not applicable for a given
268 * profile/entrypoint pair, then set the value to the following
270 #define VA_ATTRIB_NOT_SUPPORTED 0x80000000
272 /* Get maximum number of profiles supported by the implementation */
273 int vaMaxNumProfiles (
277 /* Get maximum number of entrypoints supported by the implementation */
278 int vaMaxNumEntrypoints (
282 /* Get maximum number of attributs supported by the implementation */
283 int vaMaxNumConfigAttributes (
288 * Query supported profiles
289 * The caller must provide a "profile_list" array that can hold at
290 * least vaMaxNumProfile() entries. The actual number of profiles
291 * returned in "profile_list" is returned in "num_profile".
293 VAStatus vaQueryConfigProfiles (
295 VAProfile *profile_list, /* out */
296 int *num_profiles /* out */
300 * Query supported entrypoints for a given profile
301 * The caller must provide an "entrypoint_list" array that can hold at
302 * least vaMaxNumEntrypoints() entries. The actual number of entrypoints
303 * returned in "entrypoint_list" is returned in "num_entrypoints".
305 VAStatus vaQueryConfigEntrypoints (
308 VAEntrypoint *entrypoint_list, /* out */
309 int *num_entrypoints /* out */
313 * Get attributes for a given profile/entrypoint pair
314 * The caller must provide an "attrib_list" with all attributes to be
315 * retrieved. Upon return, the attributes in "attrib_list" have been
316 * updated with their value. Unknown attributes or attributes that are
317 * not supported for the given profile/entrypoint pair will have their
318 * value set to VA_ATTRIB_NOT_SUPPORTED
320 VAStatus vaGetConfigAttributes (
323 VAEntrypoint entrypoint,
324 VAConfigAttrib *attrib_list, /* in/out */
328 /* Generic ID type, can be re-typed for specific implementation */
329 typedef unsigned int VAGenericID;
331 typedef VAGenericID VAConfigID;
334 * Create a configuration for the decode pipeline
335 * it passes in the attribute list that specifies the attributes it cares
336 * about, with the rest taking default values.
338 VAStatus vaCreateConfig (
341 VAEntrypoint entrypoint,
342 VAConfigAttrib *attrib_list,
344 VAConfigID *config_id /* out */
348 * Free resources associdated with a given config
350 VAStatus vaDestroyConfig (
356 * Query all attributes for a given configuration
357 * The profile of the configuration is returned in "profile"
358 * The entrypoint of the configuration is returned in "entrypoint"
359 * The caller must provide an "attrib_list" array that can hold at least
360 * vaMaxNumConfigAttributes() entries. The actual number of attributes
361 * returned in "attrib_list" is returned in "num_attribs"
363 VAStatus vaQueryConfigAttributes (
365 VAConfigID config_id,
366 VAProfile *profile, /* out */
367 VAEntrypoint *entrypoint, /* out */
368 VAConfigAttrib *attrib_list,/* out */
369 int *num_attribs /* out */
374 * Contexts and Surfaces
376 * Context represents a "virtual" video decode pipeline. Surfaces are render
377 * targets for a given context. The data in the surfaces are not accessible
378 * to the client and the internal data format of the surface is implementatin
381 * Surfaces will be bound to a context when the context is created. Once
382 * a surface is bound to a given context, it can not be used to create
383 * another context. The association is removed when the context is destroyed
385 * Both contexts and surfaces are identified by unique IDs and its
386 * implementation specific internals are kept opaque to the clients
389 typedef VAGenericID VAContextID;
391 typedef VAGenericID VASurfaceID;
393 #define VA_INVALID_ID 0xffffffff
394 #define VA_INVALID_SURFACE VA_INVALID_ID
397 * vaCreateSurfaces - Create an array of surfaces used for decode and display
399 * width: surface width
400 * height: surface height
401 * format: VA_RT_FORMAT_YUV420, VA_RT_FORMAT_YUV422 or VA_RT_FORMAT_YUV444
402 * num_surfaces: number of surfaces to be created
403 * surfaces: array of surfaces created upon return
405 VAStatus vaCreateSurfaces (
411 VASurfaceID *surfaces /* out */
416 * vaDestroySurfaces - Destroy resources associated with surfaces.
417 * Surfaces can only be destroyed after the context associated has been
420 * surfaces: array of surfaces to destroy
421 * num_surfaces: number of surfaces in the array to be destroyed.
423 VAStatus vaDestroySurfaces (
425 VASurfaceID *surfaces,
429 #define VA_PROGRESSIVE 0x1
431 * vaCreateContext - Create a context
433 * config_id: configuration for the context
434 * picture_width: coded picture width
435 * picture_height: coded picture height
436 * flag: any combination of the following:
437 * VA_PROGRESSIVE (only progressive frame pictures in the sequence when set)
438 * render_targets: render targets (surfaces) tied to the context
439 * num_render_targets: number of render targets in the above array
440 * context: created context id upon return
442 VAStatus vaCreateContext (
444 VAConfigID config_id,
448 VASurfaceID *render_targets,
449 int num_render_targets,
450 VAContextID *context /* out */
454 * vaDestroyContext - Destroy a context
456 * context: context to be destroyed
458 VAStatus vaDestroyContext (
465 * Buffers are used to pass various types of data from the
466 * client to the server. The server maintains a data store
467 * for each buffer created, and the client idenfies a buffer
468 * through a unique buffer id assigned by the server.
471 typedef VAGenericID VABufferID;
475 VAPictureParameterBufferType = 0,
476 VAIQMatrixBufferType = 1,
477 VABitPlaneBufferType = 2,
478 VASliceGroupMapBufferType = 3,
479 VASliceParameterBufferType = 4,
480 VASliceDataBufferType = 5,
481 VAMacroblockParameterBufferType = 6,
482 VAResidualDataBufferType = 7,
483 VADeblockingParameterBufferType = 8,
484 VAImageBufferType = 9,
485 VAProtectedSliceDataBufferType = 10,
486 VAQMatrixBufferType = 11,
487 /* Following are encode buffer types */
488 VAEncCodedBufferType = 21,
489 VAEncSequenceParameterBufferType = 22,
490 VAEncPictureParameterBufferType = 23,
491 VAEncSliceParameterBufferType = 24,
492 VAEncH264VUIBufferType = 25,
493 VAEncH264SEIBufferType = 26,
498 * There will be cases where the bitstream buffer will not have enough room to hold
499 * the data for the entire slice, and the following flags will be used in the slice
500 * parameter to signal to the server for the possible cases.
501 * If a slice parameter buffer and slice data buffer pair is sent to the server with
502 * the slice data partially in the slice data buffer (BEGIN and MIDDLE cases below),
503 * then a slice parameter and data buffer needs to be sent again to complete this slice.
505 #define VA_SLICE_DATA_FLAG_ALL 0x00 /* whole slice is in the buffer */
506 #define VA_SLICE_DATA_FLAG_BEGIN 0x01 /* The beginning of the slice is in the buffer but the end if not */
507 #define VA_SLICE_DATA_FLAG_MIDDLE 0x02 /* Neither beginning nor end of the slice is in the buffer */
508 #define VA_SLICE_DATA_FLAG_END 0x04 /* end of the slice is in the buffer */
510 /* Codec-independent Slice Parameter Buffer base */
511 typedef struct _VASliceParameterBufferBase
513 unsigned int slice_data_size; /* number of bytes in the slice data buffer for this slice */
514 unsigned int slice_data_offset; /* the offset to the first byte of slice data */
515 unsigned int slice_data_flag; /* see VA_SLICE_DATA_FLAG_XXX definitions */
516 } VASliceParameterBufferBase;
519 /****************************
520 * JEPG data structure
521 ***************************/
522 typedef struct _VAQMatrixBufferJPEG
524 int load_lum_quantiser_matrix;
525 int load_chroma_quantiser_matrix;
526 unsigned char lum_quantiser_matrix[64];
527 unsigned char chroma_quantiser_matrix[64];
528 } VAQMatrixBufferJPEG;
530 typedef struct _VAEncPictureParameterBufferJPEG
532 VASurfaceID reconstructed_picture;
533 unsigned short picture_width;
534 unsigned short picture_height;
535 VABufferID coded_buf;
536 } VAEncPictureParameterBufferJPEG;
539 /****************************
540 * MPEG-2 data structures
541 ****************************/
543 /* MPEG-2 Picture Parameter Buffer */
545 * For each frame or field, and before any slice data, a single
546 * picture parameter buffer must be send.
548 typedef struct _VAPictureParameterBufferMPEG2
550 unsigned short horizontal_size;
551 unsigned short vertical_size;
552 VASurfaceID forward_reference_picture;
553 VASurfaceID backward_reference_picture;
554 /* meanings of the following fields are the same as in the standard */
555 int picture_coding_type;
556 int f_code; /* pack all four fcode into this */
559 unsigned int intra_dc_precision : 2;
560 unsigned int picture_structure : 2;
561 unsigned int top_field_first : 1;
562 unsigned int frame_pred_frame_dct : 1;
563 unsigned int concealment_motion_vectors : 1;
564 unsigned int q_scale_type : 1;
565 unsigned int intra_vlc_format : 1;
566 unsigned int alternate_scan : 1;
567 unsigned int repeat_first_field : 1;
568 unsigned int progressive_frame : 1;
569 unsigned int is_first_field : 1; /* indicate whether the current field
570 * is the first field for field picture
574 } picture_coding_extension;
575 } VAPictureParameterBufferMPEG2;
577 /* MPEG-2 Inverse Quantization Matrix Buffer */
578 typedef struct _VAIQMatrixBufferMPEG2
580 int load_intra_quantiser_matrix;
581 int load_non_intra_quantiser_matrix;
582 int load_chroma_intra_quantiser_matrix;
583 int load_chroma_non_intra_quantiser_matrix;
584 unsigned char intra_quantiser_matrix[64];
585 unsigned char non_intra_quantiser_matrix[64];
586 unsigned char chroma_intra_quantiser_matrix[64];
587 unsigned char chroma_non_intra_quantiser_matrix[64];
588 } VAIQMatrixBufferMPEG2;
590 /* MPEG-2 Slice Parameter Buffer */
591 typedef struct _VASliceParameterBufferMPEG2
593 unsigned int slice_data_size;/* number of bytes in the slice data buffer for this slice */
594 unsigned int slice_data_offset;/* the offset to the first byte of slice data */
595 unsigned int slice_data_flag; /* see VA_SLICE_DATA_FLAG_XXX defintions */
596 unsigned int macroblock_offset;/* the offset to the first bit of MB from the first byte of slice data */
597 unsigned int slice_horizontal_position;
598 unsigned int slice_vertical_position;
599 int quantiser_scale_code;
600 int intra_slice_flag;
601 } VASliceParameterBufferMPEG2;
603 /* MPEG-2 Macroblock Parameter Buffer */
604 typedef struct _VAMacroblockParameterBufferMPEG2
606 unsigned short macroblock_address;
608 * macroblock_address (in raster scan order)
610 * bottom-right: picture-height-in-mb*picture-width-in-mb - 1
612 unsigned char macroblock_type; /* see definition below */
615 unsigned int frame_motion_type : 2;
616 unsigned int field_motion_type : 2;
617 unsigned int dct_type : 1;
621 unsigned char motion_vertical_field_select;
623 * motion_vertical_field_select:
624 * see section 6.3.17.2 in the spec
625 * only the lower 4 bits are used
626 * bit 0: first vector forward
627 * bit 1: first vector backward
628 * bit 2: second vector forward
629 * bit 3: second vector backward
631 short PMV[2][2][2]; /* see Table 7-7 in the spec */
632 unsigned short coded_block_pattern;
634 * The bitplanes for coded_block_pattern are described
635 * in Figure 6.10-12 in the spec
638 /* Number of skipped macroblocks after this macroblock */
639 unsigned short num_skipped_macroblocks;
640 } VAMacroblockParameterBufferMPEG2;
643 * OR'd flags for macroblock_type (section 6.3.17.1 in the spec)
645 #define VA_MB_TYPE_MOTION_FORWARD 0x02
646 #define VA_MB_TYPE_MOTION_BACKWARD 0x04
647 #define VA_MB_TYPE_MOTION_PATTERN 0x08
648 #define VA_MB_TYPE_MOTION_INTRA 0x10
651 * MPEG-2 Residual Data Buffer
652 * For each macroblock, there wil be 64 shorts (16-bit) in the
653 * residual data buffer
656 /****************************
657 * MPEG-4 Part 2 data structures
658 ****************************/
660 /* MPEG-4 Picture Parameter Buffer */
662 * For each frame or field, and before any slice data, a single
663 * picture parameter buffer must be send.
665 typedef struct _VAPictureParameterBufferMPEG4
667 unsigned short vop_width;
668 unsigned short vop_height;
669 VASurfaceID forward_reference_picture;
670 VASurfaceID backward_reference_picture;
673 unsigned int short_video_header : 1;
674 unsigned int chroma_format : 2;
675 unsigned int interlaced : 1;
676 unsigned int obmc_disable : 1;
677 unsigned int sprite_enable : 2;
678 unsigned int sprite_warping_accuracy : 2;
679 unsigned int quant_type : 1;
680 unsigned int quarter_sample : 1;
681 unsigned int data_partitioned : 1;
682 unsigned int reversible_vlc : 1;
683 unsigned int resync_marker_disable : 1;
687 unsigned char no_of_sprite_warping_points;
688 short sprite_trajectory_du[3];
689 short sprite_trajectory_dv[3];
690 unsigned char quant_precision;
693 unsigned int vop_coding_type : 2;
694 unsigned int backward_reference_vop_coding_type : 2;
695 unsigned int vop_rounding_type : 1;
696 unsigned int intra_dc_vlc_thr : 3;
697 unsigned int top_field_first : 1;
698 unsigned int alternate_vertical_scan_flag : 1;
702 unsigned char vop_fcode_forward;
703 unsigned char vop_fcode_backward;
704 unsigned short vop_time_increment_resolution;
705 /* short header related */
706 unsigned char num_gobs_in_vop;
707 unsigned char num_macroblocks_in_gob;
708 /* for direct mode prediction */
711 } VAPictureParameterBufferMPEG4;
713 /* MPEG-4 Inverse Quantization Matrix Buffer */
714 typedef struct _VAIQMatrixBufferMPEG4
716 int load_intra_quant_mat;
717 int load_non_intra_quant_mat;
718 unsigned char intra_quant_mat[64];
719 unsigned char non_intra_quant_mat[64];
720 } VAIQMatrixBufferMPEG4;
722 /* MPEG-4 Slice Parameter Buffer */
723 typedef struct _VASliceParameterBufferMPEG4
725 unsigned int slice_data_size;/* number of bytes in the slice data buffer for this slice */
726 unsigned int slice_data_offset;/* the offset to the first byte of slice data */
727 unsigned int slice_data_flag; /* see VA_SLICE_DATA_FLAG_XXX defintions */
728 unsigned int macroblock_offset;/* the offset to the first bit of MB from the first byte of slice data */
729 unsigned int macroblock_number;
731 } VASliceParameterBufferMPEG4;
737 typedef enum /* see 7.1.1.32 */
740 VAMvMode1MvHalfPel = 1,
741 VAMvMode1MvHalfPelBilinear = 2,
743 VAMvModeIntensityCompensation = 4
746 /* VC-1 Picture Parameter Buffer */
748 * For each picture, and before any slice data, a picture parameter
749 * buffer must be send. Multiple picture parameter buffers may be
750 * sent for a single picture. In that case picture parameters will
751 * apply to all slice data that follow it until a new picture
752 * parameter buffer is sent.
755 * pic_quantizer_type should be set to the applicable quantizer
756 * type as defined by QUANTIZER (J.1.19) and either
757 * PQUANTIZER (7.1.1.8) or PQINDEX (7.1.1.6)
759 typedef struct _VAPictureParameterBufferVC1
761 VASurfaceID forward_reference_picture;
762 VASurfaceID backward_reference_picture;
763 /* if out-of-loop post-processing is done on the render
764 target, then we need to keep the in-loop decoded
765 picture as a reference picture */
766 VASurfaceID inloop_decoded_picture;
768 /* sequence layer for AP or meta data for SP and MP */
771 unsigned int pulldown : 1; /* SEQUENCE_LAYER::PULLDOWN */
772 unsigned int interlace : 1; /* SEQUENCE_LAYER::INTERLACE */
773 unsigned int tfcntrflag : 1; /* SEQUENCE_LAYER::TFCNTRFLAG */
774 unsigned int finterpflag : 1; /* SEQUENCE_LAYER::FINTERPFLAG */
775 unsigned int psf : 1; /* SEQUENCE_LAYER::PSF */
776 unsigned int multires : 1; /* METADATA::MULTIRES */
777 unsigned int overlap : 1; /* METADATA::OVERLAP */
778 unsigned int syncmarker : 1; /* METADATA::SYNCMARKER */
779 unsigned int rangered : 1; /* METADATA::RANGERED */
780 unsigned int max_b_frames : 3; /* METADATA::MAXBFRAMES */
785 unsigned short coded_width; /* ENTRY_POINT_LAYER::CODED_WIDTH */
786 unsigned short coded_height; /* ENTRY_POINT_LAYER::CODED_HEIGHT */
789 unsigned int broken_link : 1; /* ENTRY_POINT_LAYER::BROKEN_LINK */
790 unsigned int closed_entry : 1; /* ENTRY_POINT_LAYER::CLOSED_ENTRY */
791 unsigned int panscan_flag : 1; /* ENTRY_POINT_LAYER::PANSCAN_FLAG */
792 unsigned int loopfilter : 1; /* ENTRY_POINT_LAYER::LOOPFILTER */
796 unsigned char conditional_overlap_flag; /* ENTRY_POINT_LAYER::CONDOVER */
797 unsigned char fast_uvmc_flag; /* ENTRY_POINT_LAYER::FASTUVMC */
800 unsigned int luma_flag : 1; /* ENTRY_POINT_LAYER::RANGE_MAPY_FLAG */
801 unsigned int luma : 3; /* ENTRY_POINT_LAYER::RANGE_MAPY */
802 unsigned int chroma_flag : 1; /* ENTRY_POINT_LAYER::RANGE_MAPUV_FLAG */
803 unsigned int chroma : 3; /* ENTRY_POINT_LAYER::RANGE_MAPUV */
806 } range_mapping_fields;
808 unsigned char b_picture_fraction; /* PICTURE_LAYER::BFRACTION */
809 unsigned char cbp_table; /* PICTURE_LAYER::CBPTAB/ICBPTAB */
810 unsigned char mb_mode_table; /* PICTURE_LAYER::MBMODETAB */
811 unsigned char range_reduction_frame;/* PICTURE_LAYER::RANGEREDFRM */
812 unsigned char rounding_control; /* PICTURE_LAYER::RNDCTRL */
813 unsigned char post_processing; /* PICTURE_LAYER::POSTPROC */
814 unsigned char picture_resolution_index; /* PICTURE_LAYER::RESPIC */
815 unsigned char luma_scale; /* PICTURE_LAYER::LUMSCALE */
816 unsigned char luma_shift; /* PICTURE_LAYER::LUMSHIFT */
819 unsigned int picture_type : 3; /* PICTURE_LAYER::PTYPE */
820 unsigned int frame_coding_mode : 3; /* PICTURE_LAYER::FCM */
821 unsigned int top_field_first : 1; /* PICTURE_LAYER::TFF */
822 unsigned int is_first_field : 1; /* set to 1 if it is the first field */
823 unsigned int intensity_compensation : 1; /* PICTURE_LAYER::INTCOMP */
829 unsigned int mv_type_mb : 1; /* PICTURE::MVTYPEMB */
830 unsigned int direct_mb : 1; /* PICTURE::DIRECTMB */
831 unsigned int skip_mb : 1; /* PICTURE::SKIPMB */
832 unsigned int field_tx : 1; /* PICTURE::FIELDTX */
833 unsigned int forward_mb : 1; /* PICTURE::FORWARDMB */
834 unsigned int ac_pred : 1; /* PICTURE::ACPRED */
835 unsigned int overflags : 1; /* PICTURE::OVERFLAGS */
841 unsigned int bp_mv_type_mb : 1; /* PICTURE::MVTYPEMB */
842 unsigned int bp_direct_mb : 1; /* PICTURE::DIRECTMB */
843 unsigned int bp_skip_mb : 1; /* PICTURE::SKIPMB */
844 unsigned int bp_field_tx : 1; /* PICTURE::FIELDTX */
845 unsigned int bp_forward_mb : 1; /* PICTURE::FORWARDMB */
846 unsigned int bp_ac_pred : 1; /* PICTURE::ACPRED */
847 unsigned int bp_overflags : 1; /* PICTURE::OVERFLAGS */
850 } bitplane_present; /* signal what bitplane is being passed via the bitplane buffer */
853 unsigned int reference_distance_flag : 1;/* PICTURE_LAYER::REFDIST_FLAG */
854 unsigned int reference_distance : 5;/* PICTURE_LAYER::REFDIST */
855 unsigned int num_reference_pictures: 1;/* PICTURE_LAYER::NUMREF */
856 unsigned int reference_field_pic_indicator : 1;/* PICTURE_LAYER::REFFIELD */
862 unsigned int mv_mode : 3; /* PICTURE_LAYER::MVMODE */
863 unsigned int mv_mode2 : 3; /* PICTURE_LAYER::MVMODE2 */
864 unsigned int mv_table : 3; /* PICTURE_LAYER::MVTAB/IMVTAB */
865 unsigned int two_mv_block_pattern_table: 2; /* PICTURE_LAYER::2MVBPTAB */
866 unsigned int four_mv_switch : 1; /* PICTURE_LAYER::4MVSWITCH */
867 unsigned int four_mv_block_pattern_table : 2; /* PICTURE_LAYER::4MVBPTAB */
868 unsigned int extended_mv_flag : 1; /* ENTRY_POINT_LAYER::EXTENDED_MV */
869 unsigned int extended_mv_range : 2; /* PICTURE_LAYER::MVRANGE */
870 unsigned int extended_dmv_flag : 1; /* ENTRY_POINT_LAYER::EXTENDED_DMV */
871 unsigned int extended_dmv_range : 2; /* PICTURE_LAYER::DMVRANGE */
877 unsigned int dquant : 2; /* ENTRY_POINT_LAYER::DQUANT */
878 unsigned int quantizer : 2; /* ENTRY_POINT_LAYER::QUANTIZER */
879 unsigned int half_qp : 1; /* PICTURE_LAYER::HALFQP */
880 unsigned int pic_quantizer_scale : 5;/* PICTURE_LAYER::PQUANT */
881 unsigned int pic_quantizer_type : 1;/* PICTURE_LAYER::PQUANTIZER */
882 unsigned int dq_frame : 1; /* VOPDQUANT::DQUANTFRM */
883 unsigned int dq_profile : 2; /* VOPDQUANT::DQPROFILE */
884 unsigned int dq_sb_edge : 2; /* VOPDQUANT::DQSBEDGE */
885 unsigned int dq_db_edge : 2; /* VOPDQUANT::DQDBEDGE */
886 unsigned int dq_binary_level : 1; /* VOPDQUANT::DQBILEVEL */
887 unsigned int alt_pic_quantizer : 5;/* VOPDQUANT::ALTPQUANT */
890 } pic_quantizer_fields;
893 unsigned int variable_sized_transform_flag : 1;/* ENTRY_POINT_LAYER::VSTRANSFORM */
894 unsigned int mb_level_transform_type_flag : 1;/* PICTURE_LAYER::TTMBF */
895 unsigned int frame_level_transform_type : 2;/* PICTURE_LAYER::TTFRM */
896 unsigned int transform_ac_codingset_idx1 : 2;/* PICTURE_LAYER::TRANSACFRM */
897 unsigned int transform_ac_codingset_idx2 : 2;/* PICTURE_LAYER::TRANSACFRM2 */
898 unsigned int intra_transform_dc_table : 1;/* PICTURE_LAYER::TRANSDCTAB */
902 } VAPictureParameterBufferVC1;
904 /* VC-1 Bitplane Buffer
905 There will be at most three bitplanes coded in any picture header. To send
906 the bitplane data more efficiently, each byte is divided in two nibbles, with
907 each nibble carrying three bitplanes for one macroblock. The following table
908 shows the bitplane data arrangement within each nibble based on the picture
911 Picture Type Bit3 Bit2 Bit1 Bit0
912 I or BI OVERFLAGS ACPRED FIELDTX
913 P MYTYPEMB SKIPMB DIRECTMB
914 B FORWARDMB SKIPMB DIRECTMB
916 Within each byte, the lower nibble is for the first MB and the upper nibble is
917 for the second MB. E.g. the lower nibble of the first byte in the bitplane
918 buffer is for Macroblock #1 and the upper nibble of the first byte is for
919 Macroblock #2 in the first row.
922 /* VC-1 Slice Parameter Buffer */
923 typedef struct _VASliceParameterBufferVC1
925 unsigned int slice_data_size;/* number of bytes in the slice data buffer for this slice */
926 unsigned int slice_data_offset;/* the offset to the first byte of slice data */
927 unsigned int slice_data_flag; /* see VA_SLICE_DATA_FLAG_XXX defintions */
928 unsigned int macroblock_offset;/* the offset to the first bit of MB from the first byte of slice data */
929 unsigned int slice_vertical_position;
930 } VASliceParameterBufferVC1;
932 /* VC-1 Slice Data Buffer */
934 This is simplely a buffer containing raw bit-stream bytes
937 /****************************
938 * H.264/AVC data structures
939 ****************************/
941 typedef struct _VAPictureH264
943 VASurfaceID picture_id;
944 unsigned int frame_idx;
946 unsigned int TopFieldOrderCnt;
947 unsigned int BottomFieldOrderCnt;
949 /* flags in VAPictureH264 could be OR of the following */
950 #define VA_PICTURE_H264_INVALID 0x00000001
951 #define VA_PICTURE_H264_TOP_FIELD 0x00000002
952 #define VA_PICTURE_H264_BOTTOM_FIELD 0x00000004
953 #define VA_PICTURE_H264_SHORT_TERM_REFERENCE 0x00000008
954 #define VA_PICTURE_H264_LONG_TERM_REFERENCE 0x00000010
956 /* H.264 Picture Parameter Buffer */
958 * For each picture, and before any slice data, a single
959 * picture parameter buffer must be send.
961 typedef struct _VAPictureParameterBufferH264
963 VAPictureH264 CurrPic;
964 VAPictureH264 ReferenceFrames[16]; /* in DPB */
965 unsigned short picture_width_in_mbs_minus1;
966 unsigned short picture_height_in_mbs_minus1;
967 unsigned char bit_depth_luma_minus8;
968 unsigned char bit_depth_chroma_minus8;
969 unsigned char num_ref_frames;
972 unsigned int chroma_format_idc : 2;
973 unsigned int residual_colour_transform_flag : 1;
974 unsigned int gaps_in_frame_num_value_allowed_flag : 1;
975 unsigned int frame_mbs_only_flag : 1;
976 unsigned int mb_adaptive_frame_field_flag : 1;
977 unsigned int direct_8x8_inference_flag : 1;
978 unsigned int MinLumaBiPredSize8x8 : 1; /* see A.3.3.2 */
979 unsigned int log2_max_frame_num_minus4 : 4;
980 unsigned int pic_order_cnt_type : 2;
981 unsigned int log2_max_pic_order_cnt_lsb_minus4 : 4;
982 unsigned int delta_pic_order_always_zero_flag : 1;
986 unsigned char num_slice_groups_minus1;
987 unsigned char slice_group_map_type;
988 unsigned short slice_group_change_rate_minus1;
989 signed char pic_init_qp_minus26;
990 signed char pic_init_qs_minus26;
991 signed char chroma_qp_index_offset;
992 signed char second_chroma_qp_index_offset;
995 unsigned int entropy_coding_mode_flag : 1;
996 unsigned int weighted_pred_flag : 1;
997 unsigned int weighted_bipred_idc : 2;
998 unsigned int transform_8x8_mode_flag : 1;
999 unsigned int field_pic_flag : 1;
1000 unsigned int constrained_intra_pred_flag : 1;
1001 unsigned int pic_order_present_flag : 1;
1002 unsigned int deblocking_filter_control_present_flag : 1;
1003 unsigned int redundant_pic_cnt_present_flag : 1;
1004 unsigned int reference_pic_flag : 1; /* nal_ref_idc != 0 */
1008 unsigned short frame_num;
1009 } VAPictureParameterBufferH264;
1011 /* H.264 Inverse Quantization Matrix Buffer */
1012 typedef struct _VAIQMatrixBufferH264
1014 unsigned char ScalingList4x4[6][16];
1015 unsigned char ScalingList8x8[2][64];
1016 } VAIQMatrixBufferH264;
1019 * H.264 Slice Group Map Buffer
1020 * When VAPictureParameterBufferH264::num_slice_group_minus1 is not equal to 0,
1021 * A slice group map buffer should be sent for each picture if required. The buffer
1022 * is sent only when there is a change in the mapping values.
1023 * The slice group map buffer map "map units" to slice groups as specified in
1024 * section 8.2.2 of the H.264 spec. The buffer will contain one byte for each macroblock
1025 * in raster scan order
1028 /* H.264 Slice Parameter Buffer */
1029 typedef struct _VASliceParameterBufferH264
1031 unsigned int slice_data_size;/* number of bytes in the slice data buffer for this slice */
1032 unsigned int slice_data_offset;/* the offset to the NAL start code for this slice */
1033 unsigned int slice_data_flag; /* see VA_SLICE_DATA_FLAG_XXX defintions */
1034 unsigned short slice_data_bit_offset; /* bit offset from NAL start code to the beginning of slice data */
1035 unsigned short first_mb_in_slice;
1036 unsigned char slice_type;
1037 unsigned char direct_spatial_mv_pred_flag;
1038 unsigned char num_ref_idx_l0_active_minus1;
1039 unsigned char num_ref_idx_l1_active_minus1;
1040 unsigned char cabac_init_idc;
1041 char slice_qp_delta;
1042 unsigned char disable_deblocking_filter_idc;
1043 char slice_alpha_c0_offset_div2;
1044 char slice_beta_offset_div2;
1045 VAPictureH264 RefPicList0[32]; /* See 8.2.4.2 */
1046 VAPictureH264 RefPicList1[32]; /* See 8.2.4.2 */
1047 unsigned char luma_log2_weight_denom;
1048 unsigned char chroma_log2_weight_denom;
1049 unsigned char luma_weight_l0_flag;
1050 short luma_weight_l0[32];
1051 short luma_offset_l0[32];
1052 unsigned char chroma_weight_l0_flag;
1053 short chroma_weight_l0[32][2];
1054 short chroma_offset_l0[32][2];
1055 unsigned char luma_weight_l1_flag;
1056 short luma_weight_l1[32];
1057 short luma_offset_l1[32];
1058 unsigned char chroma_weight_l1_flag;
1059 short chroma_weight_l1[32][2];
1060 short chroma_offset_l1[32][2];
1061 } VASliceParameterBufferH264;
1063 /****************************
1064 * Common encode data structures
1065 ****************************/
1068 VAEncPictureTypeIntra = 0,
1069 VAEncPictureTypePredictive = 1,
1070 VAEncPictureTypeBidirectional = 2,
1073 /* Encode Slice Parameter Buffer */
1074 typedef struct _VAEncSliceParameterBuffer
1076 unsigned int start_row_number; /* starting MB row number for this slice */
1077 unsigned int slice_height; /* slice height measured in MB */
1080 unsigned int is_intra : 1;
1081 unsigned int disable_deblocking_filter_idc : 2;
1085 } VAEncSliceParameterBuffer;
1087 /****************************
1088 * H.264 specific encode data structures
1089 ****************************/
1091 typedef struct _VAEncSequenceParameterBufferH264
1093 unsigned char seq_parameter_set_id;
1094 unsigned char level_idc;
1095 unsigned int intra_period;
1096 unsigned int intra_idr_period;
1097 unsigned int picture_width_in_mbs;
1098 unsigned int picture_height_in_mbs;
1099 unsigned int bits_per_second;
1100 unsigned int frame_rate;
1101 unsigned int initial_qp;
1102 unsigned int min_qp;
1103 unsigned int basic_unit_size;
1104 unsigned char vui_flag;
1105 } VAEncSequenceParameterBufferH264;
1107 typedef struct _VAEncPictureParameterBufferH264
1109 VASurfaceID reference_picture;
1110 VASurfaceID reconstructed_picture;
1111 VABufferID coded_buf;
1112 unsigned short picture_width;
1113 unsigned short picture_height;
1114 unsigned char last_picture; /* if set to 1 it indicates the last picture in the sequence */
1115 } VAEncPictureParameterBufferH264;
1117 /****************************
1118 * H.263 specific encode data structures
1119 ****************************/
1121 typedef struct _VAEncSequenceParameterBufferH263
1123 unsigned int intra_period;
1124 unsigned int bits_per_second;
1125 unsigned int frame_rate;
1126 unsigned int initial_qp;
1127 unsigned int min_qp;
1128 } VAEncSequenceParameterBufferH263;
1130 typedef struct _VAEncPictureParameterBufferH263
1132 VASurfaceID reference_picture;
1133 VASurfaceID reconstructed_picture;
1134 VABufferID coded_buf;
1135 unsigned short picture_width;
1136 unsigned short picture_height;
1137 VAEncPictureType picture_type;
1138 } VAEncPictureParameterBufferH263;
1140 /****************************
1141 * MPEG-4 specific encode data structures
1142 ****************************/
1144 typedef struct _VAEncSequenceParameterBufferMPEG4
1146 unsigned char profile_and_level_indication;
1147 unsigned int intra_period;
1148 unsigned int video_object_layer_width;
1149 unsigned int video_object_layer_height;
1150 unsigned int vop_time_increment_resolution;
1151 unsigned int fixed_vop_rate;
1152 unsigned int fixed_vop_time_increment;
1153 unsigned int bits_per_second;
1154 unsigned int frame_rate;
1155 unsigned int initial_qp;
1156 unsigned int min_qp;
1157 } VAEncSequenceParameterBufferMPEG4;
1159 typedef struct _VAEncPictureParameterBufferMPEG4
1161 VASurfaceID reference_picture;
1162 VASurfaceID reconstructed_picture;
1163 VABufferID coded_buf;
1164 unsigned short picture_width;
1165 unsigned short picture_height;
1166 unsigned int modulo_time_base; /* number of 1s */
1167 unsigned int vop_time_increment;
1168 VAEncPictureType picture_type;
1169 } VAEncPictureParameterBufferMPEG4;
1173 /* Buffer functions */
1176 * Creates a buffer for "num_elements" elements of "size" bytes and
1177 * initalize with "data".
1178 * if "data" is null, then the contents of the buffer data store
1180 * Basically there are two ways to get buffer data to the server side. One is
1181 * to call vaCreateBuffer() with a non-null "data", which results the data being
1182 * copied to the data store on the server side. A different method that
1183 * eliminates this copy is to pass null as "data" when calling vaCreateBuffer(),
1184 * and then use vaMapBuffer() to map the data store from the server side to the
1185 * client address space for access.
1186 * Note: image buffers are created by the library, not the client. Please see
1187 * vaCreateImage on how image buffers are managed.
1189 VAStatus vaCreateBuffer (
1191 VAContextID context,
1192 VABufferType type, /* in */
1193 unsigned int size, /* in */
1194 unsigned int num_elements, /* in */
1195 void *data, /* in */
1196 VABufferID *buf_id /* out */
1200 * Convey to the server how many valid elements are in the buffer.
1201 * e.g. if multiple slice parameters are being held in a single buffer,
1202 * this will communicate to the server the number of slice parameters
1203 * that are valid in the buffer.
1205 VAStatus vaBufferSetNumElements (
1207 VABufferID buf_id, /* in */
1208 unsigned int num_elements /* in */
1213 * device independent data structure for codedbuffer
1215 typedef struct _VACodedBufferSegment {
1216 unsigned int size; /* size of the data buffer in the coded buffer segment, in bytes */
1217 unsigned int bit_offset;/* bit offset into the data buffer where valid bitstream data begins */
1218 void *buf; /* pointer to the beginning of the data buffer in the coded buffer segment */
1219 void *next; /* pointer to the next VACodedBufferSegment */
1220 } VACodedBufferSegment;
1223 * Map data store of the buffer into the client's address space
1224 * vaCreateBuffer() needs to be called with "data" set to NULL before
1225 * calling vaMapBuffer()
1227 * if buffer type is VAEncCodedBufferType, pbuf points to link-list of
1228 * VACodedBufferSegment, and the list is terminated if "next" is NULL
1230 VAStatus vaMapBuffer (
1232 VABufferID buf_id, /* in */
1233 void **pbuf /* out */
1237 * After client making changes to a mapped data store, it needs to
1238 * "Unmap" it to let the server know that the data is ready to be
1239 * consumed by the server
1241 VAStatus vaUnmapBuffer (
1243 VABufferID buf_id /* in */
1247 * After this call, the buffer is deleted and this buffer_id is no longer valid
1248 * Only call this if the buffer is not going to be passed to vaRenderBuffer
1250 VAStatus vaDestroyBuffer (
1252 VABufferID buffer_id
1256 Render (Decode) Pictures
1258 A picture represents either a frame or a field.
1260 The Begin/Render/End sequence sends the decode buffers to the server
1264 * Get ready to decode a picture to a target surface
1266 VAStatus vaBeginPicture (
1268 VAContextID context,
1269 VASurfaceID render_target
1273 * Send decode buffers to the server.
1274 * Buffers are automatically destroyed afterwards
1276 VAStatus vaRenderPicture (
1278 VAContextID context,
1279 VABufferID *buffers,
1284 * Make the end of rendering for a picture.
1285 * The server should start processing all pending operations for this
1286 * surface. This call is non-blocking. The client can start another
1287 * Begin/Render/End sequence on a different render target.
1289 VAStatus vaEndPicture (
1301 * This function blocks until all pending operations on the render target
1302 * have been completed. Upon return it is safe to use the render target for a
1303 * different picture.
1305 VAStatus vaSyncSurface (
1307 VASurfaceID render_target
1312 VASurfaceRendering = 1, /* Rendering in progress */
1313 VASurfaceDisplaying = 2, /* Displaying in progress (not safe to render into it) */
1314 /* this status is useful if surface is used as the source */
1316 VASurfaceReady = 4, /* not being rendered or displayed */
1317 VASurfaceSkipped = 8 /* Indicate a skipped frame during encode */
1321 * Find out any pending ops on the render target
1323 VAStatus vaQuerySurfaceStatus (
1325 VASurfaceID render_target,
1326 VASurfaceStatus *status /* out */
1330 * Images and Subpictures
1331 * VAImage is used to either get the surface data to client memory, or
1332 * to copy image data in client memory to a surface.
1333 * Both images, subpictures and surfaces follow the same 2D coordinate system where origin
1334 * is at the upper left corner with positive X to the right and positive Y down
1336 #define VA_FOURCC(ch0, ch1, ch2, ch3) \
1337 ((unsigned long)(unsigned char) (ch0) | ((unsigned long)(unsigned char) (ch1) << 8) | \
1338 ((unsigned long)(unsigned char) (ch2) << 16) | ((unsigned long)(unsigned char) (ch3) << 24 ))
1340 /* a few common FourCCs */
1341 #define VA_FOURCC_NV12 0x3231564E
1342 #define VA_FOURCC_AI44 0x34344149
1343 #define VA_FOURCC_RGBA 0x41424752
1344 #define VA_FOURCC_UYVY 0x59565955
1345 #define VA_FOURCC_YUY2 0x32595559
1346 #define VA_FOURCC_AYUV 0x56555941
1347 #define VA_FOURCC_NV11 0x3131564e
1348 #define VA_FOURCC_YV12 0x32315659
1349 #define VA_FOURCC_P208 0x38303250
1350 #define VA_FOURCC_IYUV 0x56555949
1353 #define VA_LSB_FIRST 1
1354 #define VA_MSB_FIRST 2
1356 typedef struct _VAImageFormat
1358 unsigned int fourcc;
1359 unsigned int byte_order; /* VA_LSB_FIRST, VA_MSB_FIRST */
1360 unsigned int bits_per_pixel;
1361 /* for RGB formats */
1362 unsigned int depth; /* significant bits per pixel */
1363 unsigned int red_mask;
1364 unsigned int green_mask;
1365 unsigned int blue_mask;
1366 unsigned int alpha_mask;
1369 typedef VAGenericID VAImageID;
1371 typedef struct _VAImage
1373 VAImageID image_id; /* uniquely identify this image */
1374 VAImageFormat format;
1375 VABufferID buf; /* image data buffer */
1377 * Image data will be stored in a buffer of type VAImageBufferType to facilitate
1378 * data store on the server side for optimal performance. The buffer will be
1379 * created by the CreateImage function, and proper storage allocated based on the image
1380 * size and format. This buffer is managed by the library implementation, and
1381 * accessed by the client through the buffer Map/Unmap functions.
1383 unsigned short width;
1384 unsigned short height;
1385 unsigned int data_size;
1386 unsigned int num_planes; /* can not be greater than 3 */
1388 * An array indicating the scanline pitch in bytes for each plane.
1389 * Each plane may have a different pitch. Maximum 3 planes for planar formats
1391 unsigned int pitches[3];
1393 * An array indicating the byte offset from the beginning of the image data
1394 * to the start of each plane.
1396 unsigned int offsets[3];
1398 /* The following fields are only needed for paletted formats */
1399 int num_palette_entries; /* set to zero for non-palette images */
1401 * Each component is one byte and entry_bytes indicates the number of components in
1402 * each entry (eg. 3 for YUV palette entries). set to zero for non-palette images
1406 * An array of ascii characters describing the order of the components within the bytes.
1407 * Only entry_bytes characters of the string are used.
1409 char component_order[4];
1412 /* Get maximum number of image formats supported by the implementation */
1413 int vaMaxNumImageFormats (
1418 * Query supported image formats
1419 * The caller must provide a "format_list" array that can hold at
1420 * least vaMaxNumImageFormats() entries. The actual number of formats
1421 * returned in "format_list" is returned in "num_formats".
1423 VAStatus vaQueryImageFormats (
1425 VAImageFormat *format_list, /* out */
1426 int *num_formats /* out */
1430 * Create a VAImage structure
1431 * The width and height fields returned in the VAImage structure may get
1432 * enlarged for some YUV formats. Upon return from this function,
1433 * image->buf has been created and proper storage allocated by the library.
1434 * The client can access the image through the Map/Unmap calls.
1436 VAStatus vaCreateImage (
1438 VAImageFormat *format,
1441 VAImage *image /* out */
1445 * Should call DestroyImage before destroying the surface it is bound to
1447 VAStatus vaDestroyImage (
1452 VAStatus vaSetImagePalette (
1456 * pointer to an array holding the palette data. The size of the array is
1457 * num_palette_entries * entry_bytes in size. The order of the components
1458 * in the palette is described by the component_order in VAImage struct
1460 unsigned char *palette
1464 * Retrive surface data into a VAImage
1465 * Image must be in a format supported by the implementation
1467 VAStatus vaGetImage (
1469 VASurfaceID surface,
1470 int x, /* coordinates of the upper left source pixel */
1472 unsigned int width, /* width and height of the region */
1473 unsigned int height,
1478 * Copy data from a VAImage to a surface
1479 * Image must be in a format supported by the implementation
1480 * Returns a VA_STATUS_ERROR_SURFACE_BUSY if the surface
1481 * shouldn't be rendered into when this is called
1483 VAStatus vaPutImage (
1485 VASurfaceID surface,
1489 unsigned int src_width,
1490 unsigned int src_height,
1493 unsigned int dest_width,
1494 unsigned int dest_height
1498 * Derive an VAImage from an existing surface.
1499 * This interface will derive a VAImage and corresponding image buffer from
1500 * an existing VA Surface. The image buffer can then be mapped/unmapped for
1501 * direct CPU access. This operation is only possible on implementations with
1502 * direct rendering capabilities and internal surface formats that can be
1503 * represented with a VAImage. When the operation is not possible this interface
1504 * will return VA_STATUS_ERROR_OPERATION_FAILED. Clients should then fall back
1505 * to using vaCreateImage + vaPutImage to accomplish the same task in an
1508 * Implementations should only return success when the resulting image buffer
1509 * would be useable with vaMap/Unmap.
1511 * When directly accessing a surface special care must be taken to insure
1512 * proper synchronization with the graphics hardware. Clients should call
1513 * vaQuerySurfaceStatus to insure that a surface is not the target of concurrent
1514 * rendering or currently being displayed by an overlay.
1516 * Additionally nothing about the contents of a surface should be assumed
1517 * following a vaPutSurface. Implementations are free to modify the surface for
1518 * scaling or subpicture blending within a call to vaPutImage.
1520 * Calls to vaPutImage or vaGetImage using the same surface from which the image
1521 * has been derived will return VA_STATUS_ERROR_SURFACE_BUSY. vaPutImage or
1522 * vaGetImage with other surfaces is supported.
1524 * An image created with vaDeriveImage should be freed with vaDestroyImage. The
1525 * image and image buffer structures will be destroyed; however, the underlying
1526 * surface will remain unchanged until freed with vaDestroySurfaces.
1528 VAStatus vaDeriveImage (
1530 VASurfaceID surface,
1531 VAImage *image /* out */
1536 * Subpicture is a special type of image that can be blended
1537 * with a surface during vaPutSurface(). Subpicture can be used to render
1538 * DVD sub-titles or closed captioning text etc.
1541 typedef VAGenericID VASubpictureID;
1543 /* Get maximum number of subpicture formats supported by the implementation */
1544 int vaMaxNumSubpictureFormats (
1548 /* flags for subpictures */
1549 #define VA_SUBPICTURE_CHROMA_KEYING 0x0001
1550 #define VA_SUBPICTURE_GLOBAL_ALPHA 0x0002
1552 * Query supported subpicture formats
1553 * The caller must provide a "format_list" array that can hold at
1554 * least vaMaxNumSubpictureFormats() entries. The flags arrary holds the flag
1555 * for each format to indicate additional capabilities for that format. The actual
1556 * number of formats returned in "format_list" is returned in "num_formats".
1557 * flags: returned value to indicate addtional capabilities
1558 * VA_SUBPICTURE_CHROMA_KEYING - supports chroma-keying
1559 * VA_SUBPICTURE_GLOBAL_ALPHA - supports global alpha
1561 VAStatus vaQuerySubpictureFormats (
1563 VAImageFormat *format_list, /* out */
1564 unsigned int *flags, /* out */
1565 unsigned int *num_formats /* out */
1569 * Subpictures are created with an image associated.
1571 VAStatus vaCreateSubpicture (
1574 VASubpictureID *subpicture /* out */
1578 * Destroy the subpicture before destroying the image it is assocated to
1580 VAStatus vaDestroySubpicture (
1582 VASubpictureID subpicture
1586 * Bind an image to the subpicture. This image will now be associated with
1587 * the subpicture instead of the one at creation.
1589 VAStatus vaSetSubpictureImage (
1591 VASubpictureID subpicture,
1596 * If chromakey is enabled, then the area where the source value falls within
1597 * the chromakey [min, max] range is transparent
1598 * The chromakey component format is the following:
1599 * For RGB: [0:7] Red [8:15] Blue [16:23] Green
1600 * For YUV: [0:7] V [8:15] U [16:23] Y
1601 * The chromakey mask can be used to mask out certain components for chromakey
1604 VAStatus vaSetSubpictureChromakey (
1606 VASubpictureID subpicture,
1607 unsigned int chromakey_min,
1608 unsigned int chromakey_max,
1609 unsigned int chromakey_mask
1613 * Global alpha value is between 0 and 1. A value of 1 means fully opaque and
1614 * a value of 0 means fully transparent. If per-pixel alpha is also specified then
1615 * the overall alpha is per-pixel alpha multiplied by the global alpha
1617 VAStatus vaSetSubpictureGlobalAlpha (
1619 VASubpictureID subpicture,
1624 * vaAssociateSubpicture associates the subpicture with target_surfaces.
1625 * It defines the region mapping between the subpicture and the target
1626 * surfaces through source and destination rectangles (with the same width and height).
1627 * Both will be displayed at the next call to vaPutSurface. Additional
1628 * associations before the call to vaPutSurface simply overrides the association.
1630 VAStatus vaAssociateSubpicture (
1632 VASubpictureID subpicture,
1633 VASurfaceID *target_surfaces,
1635 short src_x, /* upper left offset in subpicture */
1637 unsigned short src_width,
1638 unsigned short src_height,
1639 short dest_x, /* upper left offset in surface */
1641 unsigned short dest_width,
1642 unsigned short dest_height,
1644 * whether to enable chroma-keying or global-alpha
1645 * see VA_SUBPICTURE_XXX values
1651 * vaDeassociateSubpicture removes the association of the subpicture with target_surfaces.
1653 VAStatus vaDeassociateSubpicture (
1655 VASubpictureID subpicture,
1656 VASurfaceID *target_surfaces,
1660 typedef struct _VARectangle
1664 unsigned short width;
1665 unsigned short height;
1669 * Display attributes
1670 * Display attributes are used to control things such as contrast, hue, saturation,
1671 * brightness etc. in the rendering process. The application can query what
1672 * attributes are supported by the driver, and then set the appropriate attributes
1673 * before calling vaPutSurface()
1675 /* PowerVR IEP Lite attributes */
1678 VADISPLAYATTRIB_BLE_OFF = 0x00,
1679 VADISPLAYATTRIB_BLE_LOW,
1680 VADISPLAYATTRIB_BLE_MEDIUM,
1681 VADISPLAYATTRIB_BLE_HIGH,
1682 VADISPLAYATTRIB_BLE_NONE,
1683 } VADisplayAttribBLEMode;
1687 VADISPLAYATTRIB_CSC_FORMAT_YCC_BT601 = 0x00,
1688 VADISPLAYATTRIB_CSC_FORMAT_YCC_BT709,
1689 VADISPLAYATTRIB_CSC_FORMAT_YCC_SMPTE_240,
1690 VADISPLAYATTRIB_CSC_FORMAT_RGB,
1691 VADISPLAYATTRIB_CSC_FORMAT_NONE,
1692 } VADisplayAttribCSCFormat;
1694 /* attribute value for VADisplayAttribRotation */
1695 #define VA_ROTATION_NONE 0x00000000
1696 #define VA_ROTATION_90 0x00000001
1697 #define VA_ROTATION_180 0x00000002
1698 #define VA_ROTATION_270 0x00000004
1700 /* attribute value for VADisplayAttribOutOfLoopDeblock */
1701 #define VA_OOL_DEBLOCKING_FALSE 0x00000000
1702 #define VA_OOL_DEBLOCKING_TRUE 0x00000001
1705 /* Currently defined display attribute types */
1708 VADisplayAttribBrightness = 0,
1709 VADisplayAttribContrast = 1,
1710 VADisplayAttribHue = 2,
1711 VADisplayAttribSaturation = 3,
1712 /* client can specifiy a background color for the target window */
1713 VADisplayAttribBackgroundColor = 4,
1715 * this is a gettable only attribute. For some implementations that use the
1716 * hardware overlay, after PutSurface is called, the surface can not be
1717 * re-used until after the subsequent PutSurface call. If this is the case
1718 * then the value for this attribute will be set to 1 so that the client
1719 * will not attempt to re-use the surface right after returning from a call
1722 VADisplayAttribDirectSurface = 5,
1723 VADisplayAttribRotation = 6,
1724 VADisplayAttribOutofLoopDeblock = 7,
1726 /* PowerVR IEP Lite specific attributes */
1727 VADisplayAttribBLEBlackMode = 8,
1728 VADisplayAttribBLEWhiteMode = 9,
1729 VADisplayAttribBlueStretch = 10,
1730 VADisplayAttribSkinColorCorrection = 11,
1731 VADisplayAttribCSCInputColorFormat = 12,
1732 VADisplayAttribCSCHue = 13,
1733 VADisplayAttribCSCSaturation = 14,
1734 VADisplayAttribCSCBrightness = 15,
1735 VADisplayAttribCSCContrast = 16,
1736 } VADisplayAttribType;
1738 /* flags for VADisplayAttribute */
1739 #define VA_DISPLAY_ATTRIB_NOT_SUPPORTED 0x0000
1740 #define VA_DISPLAY_ATTRIB_GETTABLE 0x0001
1741 #define VA_DISPLAY_ATTRIB_SETTABLE 0x0002
1743 typedef struct _VADisplayAttribute
1745 VADisplayAttribType type;
1748 int value; /* used by the set/get attribute functions */
1749 /* flags can be VA_DISPLAY_ATTRIB_GETTABLE or VA_DISPLAY_ATTRIB_SETTABLE or OR'd together */
1751 } VADisplayAttribute;
1753 /* Get maximum number of display attributs supported by the implementation */
1754 int vaMaxNumDisplayAttributes (
1759 * Query display attributes
1760 * The caller must provide a "attr_list" array that can hold at
1761 * least vaMaxNumDisplayAttributes() entries. The actual number of attributes
1762 * returned in "attr_list" is returned in "num_attributes".
1764 VAStatus vaQueryDisplayAttributes (
1766 VADisplayAttribute *attr_list, /* out */
1767 int *num_attributes /* out */
1771 * Get display attributes
1772 * This function returns the current attribute values in "attr_list".
1773 * Only attributes returned with VA_DISPLAY_ATTRIB_GETTABLE set in the "flags" field
1774 * from vaQueryDisplayAttributes() can have their values retrieved.
1776 VAStatus vaGetDisplayAttributes (
1778 VADisplayAttribute *attr_list, /* in/out */
1783 * Set display attributes
1784 * Only attributes returned with VA_DISPLAY_ATTRIB_SETTABLE set in the "flags" field
1785 * from vaQueryDisplayAttributes() can be set. If the attribute is not settable or
1786 * the value is out of range, the function returns VA_STATUS_ERROR_ATTR_NOT_SUPPORTED
1788 VAStatus vaSetDisplayAttributes (
1790 VADisplayAttribute *attr_list,