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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_INVALID_IMAGE_FORMAT 0x00000016
131 #define VA_STATUS_ERROR_UNKNOWN 0xFFFFFFFF
133 /* De-interlacing flags for vaPutSurface() */
134 #define VA_FRAME_PICTURE 0x00000000
135 #define VA_TOP_FIELD 0x00000001
136 #define VA_BOTTOM_FIELD 0x00000002
139 * Clears the drawable with background color.
140 * for hardware overlay based implementation this flag
141 * can be used to turn off the overlay
143 #define VA_CLEAR_DRAWABLE 0x00000008
145 /* Color space conversion flags for vaPutSurface() */
146 #define VA_SRC_BT601 0x00000010
147 #define VA_SRC_BT709 0x00000020
149 /* Scaling flags for vaPutSurface() */
150 #define VA_FILTER_SCALING_DEFAULT 0x00000000
151 #define VA_FILTER_SCALING_FAST 0x00000100
152 #define VA_FILTER_SCALING_HQ 0x00000200
153 #define VA_FILTER_SCALING_NL_ANAMORPHIC 0x00000300
154 #define VA_FILTER_SCALING_MASK 0x00000f00
157 * Returns a short english description of error_status
159 const char *vaErrorStr(VAStatus error_status);
163 * A display must be obtained by calling vaGetDisplay() before calling
164 * vaInitialize() and other functions. This connects the API to the
165 * native window system.
166 * For X Windows, native_dpy would be from XOpenDisplay()
168 typedef void* NativeDisplay; /* window system dependent */
170 int vaDisplayIsValid(VADisplay dpy);
173 * Initialize the library
175 VAStatus vaInitialize (
177 int *major_version, /* out */
178 int *minor_version /* out */
182 * After this call, all library internal resources will be cleaned up
184 VAStatus vaTerminate (
189 * vaQueryVendorString returns a pointer to a zero-terminated string
190 * describing some aspects of the VA implemenation on a specific
191 * hardware accelerator. The format of the returned string is vendor
192 * specific and at the discretion of the implementer.
193 * e.g. for the Intel GMA500 implementation, an example would be:
194 * "Intel GMA500 - 2.0.0.32L.0005"
196 const char *vaQueryVendorString (
200 typedef int (*VAPrivFunc)();
203 * Return a function pointer given a function name in the library.
204 * This allows private interfaces into the library
206 VAPrivFunc vaGetLibFunc (
211 /* Currently defined profiles */
214 VAProfileMPEG2Simple = 0,
215 VAProfileMPEG2Main = 1,
216 VAProfileMPEG4Simple = 2,
217 VAProfileMPEG4AdvancedSimple = 3,
218 VAProfileMPEG4Main = 4,
219 VAProfileH264Baseline = 5,
220 VAProfileH264Main = 6,
221 VAProfileH264High = 7,
222 VAProfileVC1Simple = 8,
223 VAProfileVC1Main = 9,
224 VAProfileVC1Advanced = 10,
225 VAProfileH263Baseline = 11,
226 VAProfileJPEGBaseline = 12
230 * Currently defined entrypoints
236 VAEntrypointIDCT = 3,
237 VAEntrypointMoComp = 4,
238 VAEntrypointDeblocking = 5,
239 VAEntrypointEncSlice = 6, /* slice level encode */
240 VAEntrypointEncPicture = 7 /* pictuer encode, JPEG, etc */
243 /* Currently defined configuration attribute types */
246 VAConfigAttribRTFormat = 0,
247 VAConfigAttribSpatialResidual = 1,
248 VAConfigAttribSpatialClipping = 2,
249 VAConfigAttribIntraResidual = 3,
250 VAConfigAttribEncryption = 4,
251 VAConfigAttribRateControl = 5
252 } VAConfigAttribType;
255 * Configuration attributes
256 * If there is more than one value for an attribute, a default
257 * value will be assigned to the attribute if the client does not
258 * specify the attribute when creating a configuration
260 typedef struct _VAConfigAttrib {
261 VAConfigAttribType type;
262 unsigned int value; /* OR'd flags (bits) for this attribute */
265 /* attribute value for VAConfigAttribRTFormat */
266 #define VA_RT_FORMAT_YUV420 0x00000001
267 #define VA_RT_FORMAT_YUV422 0x00000002
268 #define VA_RT_FORMAT_YUV444 0x00000004
269 #define VA_RT_FORMAT_PROTECTED 0x80000000
271 /* attribute value for VAConfigAttribRateControl */
272 #define VA_RC_NONE 0x00000001
273 #define VA_RC_CBR 0x00000002
274 #define VA_RC_VBR 0x00000004
277 * if an attribute is not applicable for a given
278 * profile/entrypoint pair, then set the value to the following
280 #define VA_ATTRIB_NOT_SUPPORTED 0x80000000
282 /* Get maximum number of profiles supported by the implementation */
283 int vaMaxNumProfiles (
287 /* Get maximum number of entrypoints supported by the implementation */
288 int vaMaxNumEntrypoints (
292 /* Get maximum number of attributs supported by the implementation */
293 int vaMaxNumConfigAttributes (
298 * Query supported profiles
299 * The caller must provide a "profile_list" array that can hold at
300 * least vaMaxNumProfile() entries. The actual number of profiles
301 * returned in "profile_list" is returned in "num_profile".
303 VAStatus vaQueryConfigProfiles (
305 VAProfile *profile_list, /* out */
306 int *num_profiles /* out */
310 * Query supported entrypoints for a given profile
311 * The caller must provide an "entrypoint_list" array that can hold at
312 * least vaMaxNumEntrypoints() entries. The actual number of entrypoints
313 * returned in "entrypoint_list" is returned in "num_entrypoints".
315 VAStatus vaQueryConfigEntrypoints (
318 VAEntrypoint *entrypoint_list, /* out */
319 int *num_entrypoints /* out */
323 * Get attributes for a given profile/entrypoint pair
324 * The caller must provide an "attrib_list" with all attributes to be
325 * retrieved. Upon return, the attributes in "attrib_list" have been
326 * updated with their value. Unknown attributes or attributes that are
327 * not supported for the given profile/entrypoint pair will have their
328 * value set to VA_ATTRIB_NOT_SUPPORTED
330 VAStatus vaGetConfigAttributes (
333 VAEntrypoint entrypoint,
334 VAConfigAttrib *attrib_list, /* in/out */
338 /* Generic ID type, can be re-typed for specific implementation */
339 typedef unsigned int VAGenericID;
341 typedef VAGenericID VAConfigID;
344 * Create a configuration for the decode pipeline
345 * it passes in the attribute list that specifies the attributes it cares
346 * about, with the rest taking default values.
348 VAStatus vaCreateConfig (
351 VAEntrypoint entrypoint,
352 VAConfigAttrib *attrib_list,
354 VAConfigID *config_id /* out */
358 * Free resources associdated with a given config
360 VAStatus vaDestroyConfig (
366 * Query all attributes for a given configuration
367 * The profile of the configuration is returned in "profile"
368 * The entrypoint of the configuration is returned in "entrypoint"
369 * The caller must provide an "attrib_list" array that can hold at least
370 * vaMaxNumConfigAttributes() entries. The actual number of attributes
371 * returned in "attrib_list" is returned in "num_attribs"
373 VAStatus vaQueryConfigAttributes (
375 VAConfigID config_id,
376 VAProfile *profile, /* out */
377 VAEntrypoint *entrypoint, /* out */
378 VAConfigAttrib *attrib_list,/* out */
379 int *num_attribs /* out */
384 * Contexts and Surfaces
386 * Context represents a "virtual" video decode pipeline. Surfaces are render
387 * targets for a given context. The data in the surfaces are not accessible
388 * to the client and the internal data format of the surface is implementatin
391 * Surfaces will be bound to a context when the context is created. Once
392 * a surface is bound to a given context, it can not be used to create
393 * another context. The association is removed when the context is destroyed
395 * Both contexts and surfaces are identified by unique IDs and its
396 * implementation specific internals are kept opaque to the clients
399 typedef VAGenericID VAContextID;
401 typedef VAGenericID VASurfaceID;
403 #define VA_INVALID_ID 0xffffffff
404 #define VA_INVALID_SURFACE VA_INVALID_ID
407 * vaCreateSurfaces - Create an array of surfaces used for decode and display
409 * width: surface width
410 * height: surface height
411 * format: VA_RT_FORMAT_YUV420, VA_RT_FORMAT_YUV422 or VA_RT_FORMAT_YUV444
412 * num_surfaces: number of surfaces to be created
413 * surfaces: array of surfaces created upon return
415 VAStatus vaCreateSurfaces (
421 VASurfaceID *surfaces /* out */
426 * vaDestroySurfaces - Destroy resources associated with surfaces.
427 * Surfaces can only be destroyed after the context associated has been
430 * surfaces: array of surfaces to destroy
431 * num_surfaces: number of surfaces in the array to be destroyed.
433 VAStatus vaDestroySurfaces (
435 VASurfaceID *surfaces,
439 #define VA_PROGRESSIVE 0x1
441 * vaCreateContext - Create a context
443 * config_id: configuration for the context
444 * picture_width: coded picture width
445 * picture_height: coded picture height
446 * flag: any combination of the following:
447 * VA_PROGRESSIVE (only progressive frame pictures in the sequence when set)
448 * render_targets: render targets (surfaces) tied to the context
449 * num_render_targets: number of render targets in the above array
450 * context: created context id upon return
452 VAStatus vaCreateContext (
454 VAConfigID config_id,
458 VASurfaceID *render_targets,
459 int num_render_targets,
460 VAContextID *context /* out */
464 * vaDestroyContext - Destroy a context
466 * context: context to be destroyed
468 VAStatus vaDestroyContext (
475 * Buffers are used to pass various types of data from the
476 * client to the server. The server maintains a data store
477 * for each buffer created, and the client idenfies a buffer
478 * through a unique buffer id assigned by the server.
481 typedef VAGenericID VABufferID;
485 VAPictureParameterBufferType = 0,
486 VAIQMatrixBufferType = 1,
487 VABitPlaneBufferType = 2,
488 VASliceGroupMapBufferType = 3,
489 VASliceParameterBufferType = 4,
490 VASliceDataBufferType = 5,
491 VAMacroblockParameterBufferType = 6,
492 VAResidualDataBufferType = 7,
493 VADeblockingParameterBufferType = 8,
494 VAImageBufferType = 9,
495 VAProtectedSliceDataBufferType = 10,
496 VAQMatrixBufferType = 11,
497 /* Following are encode buffer types */
498 VAEncCodedBufferType = 21,
499 VAEncSequenceParameterBufferType = 22,
500 VAEncPictureParameterBufferType = 23,
501 VAEncSliceParameterBufferType = 24,
502 VAEncH264VUIBufferType = 25,
503 VAEncH264SEIBufferType = 26,
508 * There will be cases where the bitstream buffer will not have enough room to hold
509 * the data for the entire slice, and the following flags will be used in the slice
510 * parameter to signal to the server for the possible cases.
511 * If a slice parameter buffer and slice data buffer pair is sent to the server with
512 * the slice data partially in the slice data buffer (BEGIN and MIDDLE cases below),
513 * then a slice parameter and data buffer needs to be sent again to complete this slice.
515 #define VA_SLICE_DATA_FLAG_ALL 0x00 /* whole slice is in the buffer */
516 #define VA_SLICE_DATA_FLAG_BEGIN 0x01 /* The beginning of the slice is in the buffer but the end if not */
517 #define VA_SLICE_DATA_FLAG_MIDDLE 0x02 /* Neither beginning nor end of the slice is in the buffer */
518 #define VA_SLICE_DATA_FLAG_END 0x04 /* end of the slice is in the buffer */
520 /* Codec-independent Slice Parameter Buffer base */
521 typedef struct _VASliceParameterBufferBase
523 unsigned int slice_data_size; /* number of bytes in the slice data buffer for this slice */
524 unsigned int slice_data_offset; /* the offset to the first byte of slice data */
525 unsigned int slice_data_flag; /* see VA_SLICE_DATA_FLAG_XXX definitions */
526 } VASliceParameterBufferBase;
529 /****************************
530 * JEPG data structure
531 ***************************/
532 typedef struct _VAQMatrixBufferJPEG
534 int load_lum_quantiser_matrix;
535 int load_chroma_quantiser_matrix;
536 unsigned char lum_quantiser_matrix[64];
537 unsigned char chroma_quantiser_matrix[64];
538 } VAQMatrixBufferJPEG;
540 typedef struct _VAEncPictureParameterBufferJPEG
542 VASurfaceID reconstructed_picture;
543 unsigned short picture_width;
544 unsigned short picture_height;
545 VABufferID coded_buf;
546 } VAEncPictureParameterBufferJPEG;
549 /****************************
550 * MPEG-2 data structures
551 ****************************/
553 /* MPEG-2 Picture Parameter Buffer */
555 * For each frame or field, and before any slice data, a single
556 * picture parameter buffer must be send.
558 typedef struct _VAPictureParameterBufferMPEG2
560 unsigned short horizontal_size;
561 unsigned short vertical_size;
562 VASurfaceID forward_reference_picture;
563 VASurfaceID backward_reference_picture;
564 /* meanings of the following fields are the same as in the standard */
565 int picture_coding_type;
566 int f_code; /* pack all four fcode into this */
569 unsigned int intra_dc_precision : 2;
570 unsigned int picture_structure : 2;
571 unsigned int top_field_first : 1;
572 unsigned int frame_pred_frame_dct : 1;
573 unsigned int concealment_motion_vectors : 1;
574 unsigned int q_scale_type : 1;
575 unsigned int intra_vlc_format : 1;
576 unsigned int alternate_scan : 1;
577 unsigned int repeat_first_field : 1;
578 unsigned int progressive_frame : 1;
579 unsigned int is_first_field : 1; /* indicate whether the current field
580 * is the first field for field picture
584 } picture_coding_extension;
585 } VAPictureParameterBufferMPEG2;
587 /* MPEG-2 Inverse Quantization Matrix Buffer */
588 typedef struct _VAIQMatrixBufferMPEG2
590 int load_intra_quantiser_matrix;
591 int load_non_intra_quantiser_matrix;
592 int load_chroma_intra_quantiser_matrix;
593 int load_chroma_non_intra_quantiser_matrix;
594 unsigned char intra_quantiser_matrix[64];
595 unsigned char non_intra_quantiser_matrix[64];
596 unsigned char chroma_intra_quantiser_matrix[64];
597 unsigned char chroma_non_intra_quantiser_matrix[64];
598 } VAIQMatrixBufferMPEG2;
600 /* MPEG-2 Slice Parameter Buffer */
601 typedef struct _VASliceParameterBufferMPEG2
603 unsigned int slice_data_size;/* number of bytes in the slice data buffer for this slice */
604 unsigned int slice_data_offset;/* the offset to the first byte of slice data */
605 unsigned int slice_data_flag; /* see VA_SLICE_DATA_FLAG_XXX defintions */
606 unsigned int macroblock_offset;/* the offset to the first bit of MB from the first byte of slice data */
607 unsigned int slice_horizontal_position;
608 unsigned int slice_vertical_position;
609 int quantiser_scale_code;
610 int intra_slice_flag;
611 } VASliceParameterBufferMPEG2;
613 /* MPEG-2 Macroblock Parameter Buffer */
614 typedef struct _VAMacroblockParameterBufferMPEG2
616 unsigned short macroblock_address;
618 * macroblock_address (in raster scan order)
620 * bottom-right: picture-height-in-mb*picture-width-in-mb - 1
622 unsigned char macroblock_type; /* see definition below */
625 unsigned int frame_motion_type : 2;
626 unsigned int field_motion_type : 2;
627 unsigned int dct_type : 1;
631 unsigned char motion_vertical_field_select;
633 * motion_vertical_field_select:
634 * see section 6.3.17.2 in the spec
635 * only the lower 4 bits are used
636 * bit 0: first vector forward
637 * bit 1: first vector backward
638 * bit 2: second vector forward
639 * bit 3: second vector backward
641 short PMV[2][2][2]; /* see Table 7-7 in the spec */
642 unsigned short coded_block_pattern;
644 * The bitplanes for coded_block_pattern are described
645 * in Figure 6.10-12 in the spec
648 /* Number of skipped macroblocks after this macroblock */
649 unsigned short num_skipped_macroblocks;
650 } VAMacroblockParameterBufferMPEG2;
653 * OR'd flags for macroblock_type (section 6.3.17.1 in the spec)
655 #define VA_MB_TYPE_MOTION_FORWARD 0x02
656 #define VA_MB_TYPE_MOTION_BACKWARD 0x04
657 #define VA_MB_TYPE_MOTION_PATTERN 0x08
658 #define VA_MB_TYPE_MOTION_INTRA 0x10
661 * MPEG-2 Residual Data Buffer
662 * For each macroblock, there wil be 64 shorts (16-bit) in the
663 * residual data buffer
666 /****************************
667 * MPEG-4 Part 2 data structures
668 ****************************/
670 /* MPEG-4 Picture Parameter Buffer */
672 * For each frame or field, and before any slice data, a single
673 * picture parameter buffer must be send.
675 typedef struct _VAPictureParameterBufferMPEG4
677 unsigned short vop_width;
678 unsigned short vop_height;
679 VASurfaceID forward_reference_picture;
680 VASurfaceID backward_reference_picture;
683 unsigned int short_video_header : 1;
684 unsigned int chroma_format : 2;
685 unsigned int interlaced : 1;
686 unsigned int obmc_disable : 1;
687 unsigned int sprite_enable : 2;
688 unsigned int sprite_warping_accuracy : 2;
689 unsigned int quant_type : 1;
690 unsigned int quarter_sample : 1;
691 unsigned int data_partitioned : 1;
692 unsigned int reversible_vlc : 1;
693 unsigned int resync_marker_disable : 1;
697 unsigned char no_of_sprite_warping_points;
698 short sprite_trajectory_du[3];
699 short sprite_trajectory_dv[3];
700 unsigned char quant_precision;
703 unsigned int vop_coding_type : 2;
704 unsigned int backward_reference_vop_coding_type : 2;
705 unsigned int vop_rounding_type : 1;
706 unsigned int intra_dc_vlc_thr : 3;
707 unsigned int top_field_first : 1;
708 unsigned int alternate_vertical_scan_flag : 1;
712 unsigned char vop_fcode_forward;
713 unsigned char vop_fcode_backward;
714 unsigned short vop_time_increment_resolution;
715 /* short header related */
716 unsigned char num_gobs_in_vop;
717 unsigned char num_macroblocks_in_gob;
718 /* for direct mode prediction */
721 } VAPictureParameterBufferMPEG4;
723 /* MPEG-4 Inverse Quantization Matrix Buffer */
724 typedef struct _VAIQMatrixBufferMPEG4
726 int load_intra_quant_mat;
727 int load_non_intra_quant_mat;
728 unsigned char intra_quant_mat[64];
729 unsigned char non_intra_quant_mat[64];
730 } VAIQMatrixBufferMPEG4;
732 /* MPEG-4 Slice Parameter Buffer */
733 typedef struct _VASliceParameterBufferMPEG4
735 unsigned int slice_data_size;/* number of bytes in the slice data buffer for this slice */
736 unsigned int slice_data_offset;/* the offset to the first byte of slice data */
737 unsigned int slice_data_flag; /* see VA_SLICE_DATA_FLAG_XXX defintions */
738 unsigned int macroblock_offset;/* the offset to the first bit of MB from the first byte of slice data */
739 unsigned int macroblock_number;
741 } VASliceParameterBufferMPEG4;
747 typedef enum /* see 7.1.1.32 */
750 VAMvMode1MvHalfPel = 1,
751 VAMvMode1MvHalfPelBilinear = 2,
753 VAMvModeIntensityCompensation = 4
756 /* VC-1 Picture Parameter Buffer */
758 * For each picture, and before any slice data, a picture parameter
759 * buffer must be send. Multiple picture parameter buffers may be
760 * sent for a single picture. In that case picture parameters will
761 * apply to all slice data that follow it until a new picture
762 * parameter buffer is sent.
765 * pic_quantizer_type should be set to the applicable quantizer
766 * type as defined by QUANTIZER (J.1.19) and either
767 * PQUANTIZER (7.1.1.8) or PQINDEX (7.1.1.6)
769 typedef struct _VAPictureParameterBufferVC1
771 VASurfaceID forward_reference_picture;
772 VASurfaceID backward_reference_picture;
773 /* if out-of-loop post-processing is done on the render
774 target, then we need to keep the in-loop decoded
775 picture as a reference picture */
776 VASurfaceID inloop_decoded_picture;
778 /* sequence layer for AP or meta data for SP and MP */
781 unsigned int pulldown : 1; /* SEQUENCE_LAYER::PULLDOWN */
782 unsigned int interlace : 1; /* SEQUENCE_LAYER::INTERLACE */
783 unsigned int tfcntrflag : 1; /* SEQUENCE_LAYER::TFCNTRFLAG */
784 unsigned int finterpflag : 1; /* SEQUENCE_LAYER::FINTERPFLAG */
785 unsigned int psf : 1; /* SEQUENCE_LAYER::PSF */
786 unsigned int multires : 1; /* METADATA::MULTIRES */
787 unsigned int overlap : 1; /* METADATA::OVERLAP */
788 unsigned int syncmarker : 1; /* METADATA::SYNCMARKER */
789 unsigned int rangered : 1; /* METADATA::RANGERED */
790 unsigned int max_b_frames : 3; /* METADATA::MAXBFRAMES */
795 unsigned short coded_width; /* ENTRY_POINT_LAYER::CODED_WIDTH */
796 unsigned short coded_height; /* ENTRY_POINT_LAYER::CODED_HEIGHT */
799 unsigned int broken_link : 1; /* ENTRY_POINT_LAYER::BROKEN_LINK */
800 unsigned int closed_entry : 1; /* ENTRY_POINT_LAYER::CLOSED_ENTRY */
801 unsigned int panscan_flag : 1; /* ENTRY_POINT_LAYER::PANSCAN_FLAG */
802 unsigned int loopfilter : 1; /* ENTRY_POINT_LAYER::LOOPFILTER */
806 unsigned char conditional_overlap_flag; /* ENTRY_POINT_LAYER::CONDOVER */
807 unsigned char fast_uvmc_flag; /* ENTRY_POINT_LAYER::FASTUVMC */
810 unsigned int luma_flag : 1; /* ENTRY_POINT_LAYER::RANGE_MAPY_FLAG */
811 unsigned int luma : 3; /* ENTRY_POINT_LAYER::RANGE_MAPY */
812 unsigned int chroma_flag : 1; /* ENTRY_POINT_LAYER::RANGE_MAPUV_FLAG */
813 unsigned int chroma : 3; /* ENTRY_POINT_LAYER::RANGE_MAPUV */
816 } range_mapping_fields;
818 unsigned char b_picture_fraction; /* PICTURE_LAYER::BFRACTION */
819 unsigned char cbp_table; /* PICTURE_LAYER::CBPTAB/ICBPTAB */
820 unsigned char mb_mode_table; /* PICTURE_LAYER::MBMODETAB */
821 unsigned char range_reduction_frame;/* PICTURE_LAYER::RANGEREDFRM */
822 unsigned char rounding_control; /* PICTURE_LAYER::RNDCTRL */
823 unsigned char post_processing; /* PICTURE_LAYER::POSTPROC */
824 unsigned char picture_resolution_index; /* PICTURE_LAYER::RESPIC */
825 unsigned char luma_scale; /* PICTURE_LAYER::LUMSCALE */
826 unsigned char luma_shift; /* PICTURE_LAYER::LUMSHIFT */
829 unsigned int picture_type : 3; /* PICTURE_LAYER::PTYPE */
830 unsigned int frame_coding_mode : 3; /* PICTURE_LAYER::FCM */
831 unsigned int top_field_first : 1; /* PICTURE_LAYER::TFF */
832 unsigned int is_first_field : 1; /* set to 1 if it is the first field */
833 unsigned int intensity_compensation : 1; /* PICTURE_LAYER::INTCOMP */
839 unsigned int mv_type_mb : 1; /* PICTURE::MVTYPEMB */
840 unsigned int direct_mb : 1; /* PICTURE::DIRECTMB */
841 unsigned int skip_mb : 1; /* PICTURE::SKIPMB */
842 unsigned int field_tx : 1; /* PICTURE::FIELDTX */
843 unsigned int forward_mb : 1; /* PICTURE::FORWARDMB */
844 unsigned int ac_pred : 1; /* PICTURE::ACPRED */
845 unsigned int overflags : 1; /* PICTURE::OVERFLAGS */
851 unsigned int bp_mv_type_mb : 1; /* PICTURE::MVTYPEMB */
852 unsigned int bp_direct_mb : 1; /* PICTURE::DIRECTMB */
853 unsigned int bp_skip_mb : 1; /* PICTURE::SKIPMB */
854 unsigned int bp_field_tx : 1; /* PICTURE::FIELDTX */
855 unsigned int bp_forward_mb : 1; /* PICTURE::FORWARDMB */
856 unsigned int bp_ac_pred : 1; /* PICTURE::ACPRED */
857 unsigned int bp_overflags : 1; /* PICTURE::OVERFLAGS */
860 } bitplane_present; /* signal what bitplane is being passed via the bitplane buffer */
863 unsigned int reference_distance_flag : 1;/* PICTURE_LAYER::REFDIST_FLAG */
864 unsigned int reference_distance : 5;/* PICTURE_LAYER::REFDIST */
865 unsigned int num_reference_pictures: 1;/* PICTURE_LAYER::NUMREF */
866 unsigned int reference_field_pic_indicator : 1;/* PICTURE_LAYER::REFFIELD */
872 unsigned int mv_mode : 3; /* PICTURE_LAYER::MVMODE */
873 unsigned int mv_mode2 : 3; /* PICTURE_LAYER::MVMODE2 */
874 unsigned int mv_table : 3; /* PICTURE_LAYER::MVTAB/IMVTAB */
875 unsigned int two_mv_block_pattern_table: 2; /* PICTURE_LAYER::2MVBPTAB */
876 unsigned int four_mv_switch : 1; /* PICTURE_LAYER::4MVSWITCH */
877 unsigned int four_mv_block_pattern_table : 2; /* PICTURE_LAYER::4MVBPTAB */
878 unsigned int extended_mv_flag : 1; /* ENTRY_POINT_LAYER::EXTENDED_MV */
879 unsigned int extended_mv_range : 2; /* PICTURE_LAYER::MVRANGE */
880 unsigned int extended_dmv_flag : 1; /* ENTRY_POINT_LAYER::EXTENDED_DMV */
881 unsigned int extended_dmv_range : 2; /* PICTURE_LAYER::DMVRANGE */
887 unsigned int dquant : 2; /* ENTRY_POINT_LAYER::DQUANT */
888 unsigned int quantizer : 2; /* ENTRY_POINT_LAYER::QUANTIZER */
889 unsigned int half_qp : 1; /* PICTURE_LAYER::HALFQP */
890 unsigned int pic_quantizer_scale : 5;/* PICTURE_LAYER::PQUANT */
891 unsigned int pic_quantizer_type : 1;/* PICTURE_LAYER::PQUANTIZER */
892 unsigned int dq_frame : 1; /* VOPDQUANT::DQUANTFRM */
893 unsigned int dq_profile : 2; /* VOPDQUANT::DQPROFILE */
894 unsigned int dq_sb_edge : 2; /* VOPDQUANT::DQSBEDGE */
895 unsigned int dq_db_edge : 2; /* VOPDQUANT::DQDBEDGE */
896 unsigned int dq_binary_level : 1; /* VOPDQUANT::DQBILEVEL */
897 unsigned int alt_pic_quantizer : 5;/* VOPDQUANT::ALTPQUANT */
900 } pic_quantizer_fields;
903 unsigned int variable_sized_transform_flag : 1;/* ENTRY_POINT_LAYER::VSTRANSFORM */
904 unsigned int mb_level_transform_type_flag : 1;/* PICTURE_LAYER::TTMBF */
905 unsigned int frame_level_transform_type : 2;/* PICTURE_LAYER::TTFRM */
906 unsigned int transform_ac_codingset_idx1 : 2;/* PICTURE_LAYER::TRANSACFRM */
907 unsigned int transform_ac_codingset_idx2 : 2;/* PICTURE_LAYER::TRANSACFRM2 */
908 unsigned int intra_transform_dc_table : 1;/* PICTURE_LAYER::TRANSDCTAB */
912 } VAPictureParameterBufferVC1;
914 /* VC-1 Bitplane Buffer
915 There will be at most three bitplanes coded in any picture header. To send
916 the bitplane data more efficiently, each byte is divided in two nibbles, with
917 each nibble carrying three bitplanes for one macroblock. The following table
918 shows the bitplane data arrangement within each nibble based on the picture
921 Picture Type Bit3 Bit2 Bit1 Bit0
922 I or BI OVERFLAGS ACPRED FIELDTX
923 P MYTYPEMB SKIPMB DIRECTMB
924 B FORWARDMB SKIPMB DIRECTMB
926 Within each byte, the lower nibble is for the first MB and the upper nibble is
927 for the second MB. E.g. the lower nibble of the first byte in the bitplane
928 buffer is for Macroblock #1 and the upper nibble of the first byte is for
929 Macroblock #2 in the first row.
932 /* VC-1 Slice Parameter Buffer */
933 typedef struct _VASliceParameterBufferVC1
935 unsigned int slice_data_size;/* number of bytes in the slice data buffer for this slice */
936 unsigned int slice_data_offset;/* the offset to the first byte of slice data */
937 unsigned int slice_data_flag; /* see VA_SLICE_DATA_FLAG_XXX defintions */
938 unsigned int macroblock_offset;/* the offset to the first bit of MB from the first byte of slice data */
939 unsigned int slice_vertical_position;
940 } VASliceParameterBufferVC1;
942 /* VC-1 Slice Data Buffer */
944 This is simplely a buffer containing raw bit-stream bytes
947 /****************************
948 * H.264/AVC data structures
949 ****************************/
951 typedef struct _VAPictureH264
953 VASurfaceID picture_id;
954 unsigned int frame_idx;
956 unsigned int TopFieldOrderCnt;
957 unsigned int BottomFieldOrderCnt;
959 /* flags in VAPictureH264 could be OR of the following */
960 #define VA_PICTURE_H264_INVALID 0x00000001
961 #define VA_PICTURE_H264_TOP_FIELD 0x00000002
962 #define VA_PICTURE_H264_BOTTOM_FIELD 0x00000004
963 #define VA_PICTURE_H264_SHORT_TERM_REFERENCE 0x00000008
964 #define VA_PICTURE_H264_LONG_TERM_REFERENCE 0x00000010
966 /* H.264 Picture Parameter Buffer */
968 * For each picture, and before any slice data, a single
969 * picture parameter buffer must be send.
971 typedef struct _VAPictureParameterBufferH264
973 VAPictureH264 CurrPic;
974 VAPictureH264 ReferenceFrames[16]; /* in DPB */
975 unsigned short picture_width_in_mbs_minus1;
976 unsigned short picture_height_in_mbs_minus1;
977 unsigned char bit_depth_luma_minus8;
978 unsigned char bit_depth_chroma_minus8;
979 unsigned char num_ref_frames;
982 unsigned int chroma_format_idc : 2;
983 unsigned int residual_colour_transform_flag : 1;
984 unsigned int gaps_in_frame_num_value_allowed_flag : 1;
985 unsigned int frame_mbs_only_flag : 1;
986 unsigned int mb_adaptive_frame_field_flag : 1;
987 unsigned int direct_8x8_inference_flag : 1;
988 unsigned int MinLumaBiPredSize8x8 : 1; /* see A.3.3.2 */
989 unsigned int log2_max_frame_num_minus4 : 4;
990 unsigned int pic_order_cnt_type : 2;
991 unsigned int log2_max_pic_order_cnt_lsb_minus4 : 4;
992 unsigned int delta_pic_order_always_zero_flag : 1;
996 unsigned char num_slice_groups_minus1;
997 unsigned char slice_group_map_type;
998 unsigned short slice_group_change_rate_minus1;
999 signed char pic_init_qp_minus26;
1000 signed char pic_init_qs_minus26;
1001 signed char chroma_qp_index_offset;
1002 signed char second_chroma_qp_index_offset;
1005 unsigned int entropy_coding_mode_flag : 1;
1006 unsigned int weighted_pred_flag : 1;
1007 unsigned int weighted_bipred_idc : 2;
1008 unsigned int transform_8x8_mode_flag : 1;
1009 unsigned int field_pic_flag : 1;
1010 unsigned int constrained_intra_pred_flag : 1;
1011 unsigned int pic_order_present_flag : 1;
1012 unsigned int deblocking_filter_control_present_flag : 1;
1013 unsigned int redundant_pic_cnt_present_flag : 1;
1014 unsigned int reference_pic_flag : 1; /* nal_ref_idc != 0 */
1018 unsigned short frame_num;
1019 } VAPictureParameterBufferH264;
1021 /* H.264 Inverse Quantization Matrix Buffer */
1022 typedef struct _VAIQMatrixBufferH264
1024 unsigned char ScalingList4x4[6][16];
1025 unsigned char ScalingList8x8[2][64];
1026 } VAIQMatrixBufferH264;
1029 * H.264 Slice Group Map Buffer
1030 * When VAPictureParameterBufferH264::num_slice_group_minus1 is not equal to 0,
1031 * A slice group map buffer should be sent for each picture if required. The buffer
1032 * is sent only when there is a change in the mapping values.
1033 * The slice group map buffer map "map units" to slice groups as specified in
1034 * section 8.2.2 of the H.264 spec. The buffer will contain one byte for each macroblock
1035 * in raster scan order
1038 /* H.264 Slice Parameter Buffer */
1039 typedef struct _VASliceParameterBufferH264
1041 unsigned int slice_data_size;/* number of bytes in the slice data buffer for this slice */
1042 unsigned int slice_data_offset;/* the offset to the NAL start code for this slice */
1043 unsigned int slice_data_flag; /* see VA_SLICE_DATA_FLAG_XXX defintions */
1044 unsigned short slice_data_bit_offset; /* bit offset from NAL start code to the beginning of slice data */
1045 unsigned short first_mb_in_slice;
1046 unsigned char slice_type;
1047 unsigned char direct_spatial_mv_pred_flag;
1048 unsigned char num_ref_idx_l0_active_minus1;
1049 unsigned char num_ref_idx_l1_active_minus1;
1050 unsigned char cabac_init_idc;
1051 char slice_qp_delta;
1052 unsigned char disable_deblocking_filter_idc;
1053 char slice_alpha_c0_offset_div2;
1054 char slice_beta_offset_div2;
1055 VAPictureH264 RefPicList0[32]; /* See 8.2.4.2 */
1056 VAPictureH264 RefPicList1[32]; /* See 8.2.4.2 */
1057 unsigned char luma_log2_weight_denom;
1058 unsigned char chroma_log2_weight_denom;
1059 unsigned char luma_weight_l0_flag;
1060 short luma_weight_l0[32];
1061 short luma_offset_l0[32];
1062 unsigned char chroma_weight_l0_flag;
1063 short chroma_weight_l0[32][2];
1064 short chroma_offset_l0[32][2];
1065 unsigned char luma_weight_l1_flag;
1066 short luma_weight_l1[32];
1067 short luma_offset_l1[32];
1068 unsigned char chroma_weight_l1_flag;
1069 short chroma_weight_l1[32][2];
1070 short chroma_offset_l1[32][2];
1071 } VASliceParameterBufferH264;
1073 /****************************
1074 * Common encode data structures
1075 ****************************/
1078 VAEncPictureTypeIntra = 0,
1079 VAEncPictureTypePredictive = 1,
1080 VAEncPictureTypeBidirectional = 2,
1083 /* Encode Slice Parameter Buffer */
1084 typedef struct _VAEncSliceParameterBuffer
1086 unsigned int start_row_number; /* starting MB row number for this slice */
1087 unsigned int slice_height; /* slice height measured in MB */
1090 unsigned int is_intra : 1;
1091 unsigned int disable_deblocking_filter_idc : 2;
1095 } VAEncSliceParameterBuffer;
1097 /****************************
1098 * H.264 specific encode data structures
1099 ****************************/
1101 typedef struct _VAEncSequenceParameterBufferH264
1103 unsigned char seq_parameter_set_id;
1104 unsigned char level_idc;
1105 unsigned int intra_period;
1106 unsigned int intra_idr_period;
1107 unsigned int picture_width_in_mbs;
1108 unsigned int picture_height_in_mbs;
1109 unsigned int bits_per_second;
1110 unsigned int frame_rate;
1111 unsigned int initial_qp;
1112 unsigned int min_qp;
1113 unsigned int basic_unit_size;
1114 unsigned char vui_flag;
1115 } VAEncSequenceParameterBufferH264;
1117 typedef struct _VAEncPictureParameterBufferH264
1119 VASurfaceID reference_picture;
1120 VASurfaceID reconstructed_picture;
1121 VABufferID coded_buf;
1122 unsigned short picture_width;
1123 unsigned short picture_height;
1124 unsigned char last_picture; /* if set to 1 it indicates the last picture in the sequence */
1125 } VAEncPictureParameterBufferH264;
1127 /****************************
1128 * H.263 specific encode data structures
1129 ****************************/
1131 typedef struct _VAEncSequenceParameterBufferH263
1133 unsigned int intra_period;
1134 unsigned int bits_per_second;
1135 unsigned int frame_rate;
1136 unsigned int initial_qp;
1137 unsigned int min_qp;
1138 } VAEncSequenceParameterBufferH263;
1140 typedef struct _VAEncPictureParameterBufferH263
1142 VASurfaceID reference_picture;
1143 VASurfaceID reconstructed_picture;
1144 VABufferID coded_buf;
1145 unsigned short picture_width;
1146 unsigned short picture_height;
1147 VAEncPictureType picture_type;
1148 } VAEncPictureParameterBufferH263;
1150 /****************************
1151 * MPEG-4 specific encode data structures
1152 ****************************/
1154 typedef struct _VAEncSequenceParameterBufferMPEG4
1156 unsigned char profile_and_level_indication;
1157 unsigned int intra_period;
1158 unsigned int video_object_layer_width;
1159 unsigned int video_object_layer_height;
1160 unsigned int vop_time_increment_resolution;
1161 unsigned int fixed_vop_rate;
1162 unsigned int fixed_vop_time_increment;
1163 unsigned int bits_per_second;
1164 unsigned int frame_rate;
1165 unsigned int initial_qp;
1166 unsigned int min_qp;
1167 } VAEncSequenceParameterBufferMPEG4;
1169 typedef struct _VAEncPictureParameterBufferMPEG4
1171 VASurfaceID reference_picture;
1172 VASurfaceID reconstructed_picture;
1173 VABufferID coded_buf;
1174 unsigned short picture_width;
1175 unsigned short picture_height;
1176 unsigned int modulo_time_base; /* number of 1s */
1177 unsigned int vop_time_increment;
1178 VAEncPictureType picture_type;
1179 } VAEncPictureParameterBufferMPEG4;
1183 /* Buffer functions */
1186 * Creates a buffer for "num_elements" elements of "size" bytes and
1187 * initalize with "data".
1188 * if "data" is null, then the contents of the buffer data store
1190 * Basically there are two ways to get buffer data to the server side. One is
1191 * to call vaCreateBuffer() with a non-null "data", which results the data being
1192 * copied to the data store on the server side. A different method that
1193 * eliminates this copy is to pass null as "data" when calling vaCreateBuffer(),
1194 * and then use vaMapBuffer() to map the data store from the server side to the
1195 * client address space for access.
1196 * Note: image buffers are created by the library, not the client. Please see
1197 * vaCreateImage on how image buffers are managed.
1199 VAStatus vaCreateBuffer (
1201 VAContextID context,
1202 VABufferType type, /* in */
1203 unsigned int size, /* in */
1204 unsigned int num_elements, /* in */
1205 void *data, /* in */
1206 VABufferID *buf_id /* out */
1210 * Convey to the server how many valid elements are in the buffer.
1211 * e.g. if multiple slice parameters are being held in a single buffer,
1212 * this will communicate to the server the number of slice parameters
1213 * that are valid in the buffer.
1215 VAStatus vaBufferSetNumElements (
1217 VABufferID buf_id, /* in */
1218 unsigned int num_elements /* in */
1223 * device independent data structure for codedbuffer
1225 typedef struct _VACodedBufferSegment {
1226 unsigned int size; /* size of the data buffer in the coded buffer segment, in bytes */
1227 unsigned int bit_offset;/* bit offset into the data buffer where valid bitstream data begins */
1228 void *buf; /* pointer to the beginning of the data buffer in the coded buffer segment */
1229 void *next; /* pointer to the next VACodedBufferSegment */
1230 } VACodedBufferSegment;
1233 * Map data store of the buffer into the client's address space
1234 * vaCreateBuffer() needs to be called with "data" set to NULL before
1235 * calling vaMapBuffer()
1237 * if buffer type is VAEncCodedBufferType, pbuf points to link-list of
1238 * VACodedBufferSegment, and the list is terminated if "next" is NULL
1240 VAStatus vaMapBuffer (
1242 VABufferID buf_id, /* in */
1243 void **pbuf /* out */
1247 * After client making changes to a mapped data store, it needs to
1248 * "Unmap" it to let the server know that the data is ready to be
1249 * consumed by the server
1251 VAStatus vaUnmapBuffer (
1253 VABufferID buf_id /* in */
1257 * After this call, the buffer is deleted and this buffer_id is no longer valid
1258 * Only call this if the buffer is not going to be passed to vaRenderBuffer
1260 VAStatus vaDestroyBuffer (
1262 VABufferID buffer_id
1266 Render (Decode) Pictures
1268 A picture represents either a frame or a field.
1270 The Begin/Render/End sequence sends the decode buffers to the server
1274 * Get ready to decode a picture to a target surface
1276 VAStatus vaBeginPicture (
1278 VAContextID context,
1279 VASurfaceID render_target
1283 * Send decode buffers to the server.
1284 * Buffers are automatically destroyed afterwards
1286 VAStatus vaRenderPicture (
1288 VAContextID context,
1289 VABufferID *buffers,
1294 * Make the end of rendering for a picture.
1295 * The server should start processing all pending operations for this
1296 * surface. This call is non-blocking. The client can start another
1297 * Begin/Render/End sequence on a different render target.
1299 VAStatus vaEndPicture (
1311 * This function blocks until all pending operations on the render target
1312 * have been completed. Upon return it is safe to use the render target for a
1313 * different picture.
1315 VAStatus vaSyncSurface (
1317 VASurfaceID render_target
1322 VASurfaceRendering = 1, /* Rendering in progress */
1323 VASurfaceDisplaying = 2, /* Displaying in progress (not safe to render into it) */
1324 /* this status is useful if surface is used as the source */
1326 VASurfaceReady = 4, /* not being rendered or displayed */
1327 VASurfaceSkipped = 8 /* Indicate a skipped frame during encode */
1331 * Find out any pending ops on the render target
1333 VAStatus vaQuerySurfaceStatus (
1335 VASurfaceID render_target,
1336 VASurfaceStatus *status /* out */
1340 * Images and Subpictures
1341 * VAImage is used to either get the surface data to client memory, or
1342 * to copy image data in client memory to a surface.
1343 * Both images, subpictures and surfaces follow the same 2D coordinate system where origin
1344 * is at the upper left corner with positive X to the right and positive Y down
1346 #define VA_FOURCC(ch0, ch1, ch2, ch3) \
1347 ((unsigned long)(unsigned char) (ch0) | ((unsigned long)(unsigned char) (ch1) << 8) | \
1348 ((unsigned long)(unsigned char) (ch2) << 16) | ((unsigned long)(unsigned char) (ch3) << 24 ))
1350 /* a few common FourCCs */
1351 #define VA_FOURCC_NV12 0x3231564E
1352 #define VA_FOURCC_AI44 0x34344149
1353 #define VA_FOURCC_RGBA 0x41424752
1354 #define VA_FOURCC_UYVY 0x59565955
1355 #define VA_FOURCC_YUY2 0x32595559
1356 #define VA_FOURCC_AYUV 0x56555941
1357 #define VA_FOURCC_NV11 0x3131564e
1358 #define VA_FOURCC_YV12 0x32315659
1359 #define VA_FOURCC_P208 0x38303250
1360 #define VA_FOURCC_IYUV 0x56555949
1363 #define VA_LSB_FIRST 1
1364 #define VA_MSB_FIRST 2
1366 typedef struct _VAImageFormat
1368 unsigned int fourcc;
1369 unsigned int byte_order; /* VA_LSB_FIRST, VA_MSB_FIRST */
1370 unsigned int bits_per_pixel;
1371 /* for RGB formats */
1372 unsigned int depth; /* significant bits per pixel */
1373 unsigned int red_mask;
1374 unsigned int green_mask;
1375 unsigned int blue_mask;
1376 unsigned int alpha_mask;
1379 typedef VAGenericID VAImageID;
1381 typedef struct _VAImage
1383 VAImageID image_id; /* uniquely identify this image */
1384 VAImageFormat format;
1385 VABufferID buf; /* image data buffer */
1387 * Image data will be stored in a buffer of type VAImageBufferType to facilitate
1388 * data store on the server side for optimal performance. The buffer will be
1389 * created by the CreateImage function, and proper storage allocated based on the image
1390 * size and format. This buffer is managed by the library implementation, and
1391 * accessed by the client through the buffer Map/Unmap functions.
1393 unsigned short width;
1394 unsigned short height;
1395 unsigned int data_size;
1396 unsigned int num_planes; /* can not be greater than 3 */
1398 * An array indicating the scanline pitch in bytes for each plane.
1399 * Each plane may have a different pitch. Maximum 3 planes for planar formats
1401 unsigned int pitches[3];
1403 * An array indicating the byte offset from the beginning of the image data
1404 * to the start of each plane.
1406 unsigned int offsets[3];
1408 /* The following fields are only needed for paletted formats */
1409 int num_palette_entries; /* set to zero for non-palette images */
1411 * Each component is one byte and entry_bytes indicates the number of components in
1412 * each entry (eg. 3 for YUV palette entries). set to zero for non-palette images
1416 * An array of ascii characters describing the order of the components within the bytes.
1417 * Only entry_bytes characters of the string are used.
1419 char component_order[4];
1422 /* Get maximum number of image formats supported by the implementation */
1423 int vaMaxNumImageFormats (
1428 * Query supported image formats
1429 * The caller must provide a "format_list" array that can hold at
1430 * least vaMaxNumImageFormats() entries. The actual number of formats
1431 * returned in "format_list" is returned in "num_formats".
1433 VAStatus vaQueryImageFormats (
1435 VAImageFormat *format_list, /* out */
1436 int *num_formats /* out */
1440 * Create a VAImage structure
1441 * The width and height fields returned in the VAImage structure may get
1442 * enlarged for some YUV formats. Upon return from this function,
1443 * image->buf has been created and proper storage allocated by the library.
1444 * The client can access the image through the Map/Unmap calls.
1446 VAStatus vaCreateImage (
1448 VAImageFormat *format,
1451 VAImage *image /* out */
1455 * Should call DestroyImage before destroying the surface it is bound to
1457 VAStatus vaDestroyImage (
1462 VAStatus vaSetImagePalette (
1466 * pointer to an array holding the palette data. The size of the array is
1467 * num_palette_entries * entry_bytes in size. The order of the components
1468 * in the palette is described by the component_order in VAImage struct
1470 unsigned char *palette
1474 * Retrive surface data into a VAImage
1475 * Image must be in a format supported by the implementation
1477 VAStatus vaGetImage (
1479 VASurfaceID surface,
1480 int x, /* coordinates of the upper left source pixel */
1482 unsigned int width, /* width and height of the region */
1483 unsigned int height,
1488 * Copy data from a VAImage to a surface
1489 * Image must be in a format supported by the implementation
1490 * Returns a VA_STATUS_ERROR_SURFACE_BUSY if the surface
1491 * shouldn't be rendered into when this is called
1493 VAStatus vaPutImage (
1495 VASurfaceID surface,
1499 unsigned int src_width,
1500 unsigned int src_height,
1503 unsigned int dest_width,
1504 unsigned int dest_height
1508 * Derive an VAImage from an existing surface.
1509 * This interface will derive a VAImage and corresponding image buffer from
1510 * an existing VA Surface. The image buffer can then be mapped/unmapped for
1511 * direct CPU access. This operation is only possible on implementations with
1512 * direct rendering capabilities and internal surface formats that can be
1513 * represented with a VAImage. When the operation is not possible this interface
1514 * will return VA_STATUS_ERROR_OPERATION_FAILED. Clients should then fall back
1515 * to using vaCreateImage + vaPutImage to accomplish the same task in an
1518 * Implementations should only return success when the resulting image buffer
1519 * would be useable with vaMap/Unmap.
1521 * When directly accessing a surface special care must be taken to insure
1522 * proper synchronization with the graphics hardware. Clients should call
1523 * vaQuerySurfaceStatus to insure that a surface is not the target of concurrent
1524 * rendering or currently being displayed by an overlay.
1526 * Additionally nothing about the contents of a surface should be assumed
1527 * following a vaPutSurface. Implementations are free to modify the surface for
1528 * scaling or subpicture blending within a call to vaPutImage.
1530 * Calls to vaPutImage or vaGetImage using the same surface from which the image
1531 * has been derived will return VA_STATUS_ERROR_SURFACE_BUSY. vaPutImage or
1532 * vaGetImage with other surfaces is supported.
1534 * An image created with vaDeriveImage should be freed with vaDestroyImage. The
1535 * image and image buffer structures will be destroyed; however, the underlying
1536 * surface will remain unchanged until freed with vaDestroySurfaces.
1538 VAStatus vaDeriveImage (
1540 VASurfaceID surface,
1541 VAImage *image /* out */
1546 * Subpicture is a special type of image that can be blended
1547 * with a surface during vaPutSurface(). Subpicture can be used to render
1548 * DVD sub-titles or closed captioning text etc.
1551 typedef VAGenericID VASubpictureID;
1553 /* Get maximum number of subpicture formats supported by the implementation */
1554 int vaMaxNumSubpictureFormats (
1558 /* flags for subpictures */
1559 #define VA_SUBPICTURE_CHROMA_KEYING 0x0001
1560 #define VA_SUBPICTURE_GLOBAL_ALPHA 0x0002
1562 * Query supported subpicture formats
1563 * The caller must provide a "format_list" array that can hold at
1564 * least vaMaxNumSubpictureFormats() entries. The flags arrary holds the flag
1565 * for each format to indicate additional capabilities for that format. The actual
1566 * number of formats returned in "format_list" is returned in "num_formats".
1567 * flags: returned value to indicate addtional capabilities
1568 * VA_SUBPICTURE_CHROMA_KEYING - supports chroma-keying
1569 * VA_SUBPICTURE_GLOBAL_ALPHA - supports global alpha
1571 VAStatus vaQuerySubpictureFormats (
1573 VAImageFormat *format_list, /* out */
1574 unsigned int *flags, /* out */
1575 unsigned int *num_formats /* out */
1579 * Subpictures are created with an image associated.
1581 VAStatus vaCreateSubpicture (
1584 VASubpictureID *subpicture /* out */
1588 * Destroy the subpicture before destroying the image it is assocated to
1590 VAStatus vaDestroySubpicture (
1592 VASubpictureID subpicture
1596 * Bind an image to the subpicture. This image will now be associated with
1597 * the subpicture instead of the one at creation.
1599 VAStatus vaSetSubpictureImage (
1601 VASubpictureID subpicture,
1606 * If chromakey is enabled, then the area where the source value falls within
1607 * the chromakey [min, max] range is transparent
1608 * The chromakey component format is the following:
1609 * For RGB: [0:7] Red [8:15] Blue [16:23] Green
1610 * For YUV: [0:7] V [8:15] U [16:23] Y
1611 * The chromakey mask can be used to mask out certain components for chromakey
1614 VAStatus vaSetSubpictureChromakey (
1616 VASubpictureID subpicture,
1617 unsigned int chromakey_min,
1618 unsigned int chromakey_max,
1619 unsigned int chromakey_mask
1623 * Global alpha value is between 0 and 1. A value of 1 means fully opaque and
1624 * a value of 0 means fully transparent. If per-pixel alpha is also specified then
1625 * the overall alpha is per-pixel alpha multiplied by the global alpha
1627 VAStatus vaSetSubpictureGlobalAlpha (
1629 VASubpictureID subpicture,
1634 * vaAssociateSubpicture associates the subpicture with target_surfaces.
1635 * It defines the region mapping between the subpicture and the target
1636 * surfaces through source and destination rectangles (with the same width and height).
1637 * Both will be displayed at the next call to vaPutSurface. Additional
1638 * associations before the call to vaPutSurface simply overrides the association.
1640 VAStatus vaAssociateSubpicture (
1642 VASubpictureID subpicture,
1643 VASurfaceID *target_surfaces,
1645 short src_x, /* upper left offset in subpicture */
1647 unsigned short src_width,
1648 unsigned short src_height,
1649 short dest_x, /* upper left offset in surface */
1651 unsigned short dest_width,
1652 unsigned short dest_height,
1654 * whether to enable chroma-keying or global-alpha
1655 * see VA_SUBPICTURE_XXX values
1661 * vaDeassociateSubpicture removes the association of the subpicture with target_surfaces.
1663 VAStatus vaDeassociateSubpicture (
1665 VASubpictureID subpicture,
1666 VASurfaceID *target_surfaces,
1670 typedef struct _VARectangle
1674 unsigned short width;
1675 unsigned short height;
1679 * Display attributes
1680 * Display attributes are used to control things such as contrast, hue, saturation,
1681 * brightness etc. in the rendering process. The application can query what
1682 * attributes are supported by the driver, and then set the appropriate attributes
1683 * before calling vaPutSurface()
1685 /* PowerVR IEP Lite attributes */
1688 VADISPLAYATTRIB_BLE_OFF = 0x00,
1689 VADISPLAYATTRIB_BLE_LOW,
1690 VADISPLAYATTRIB_BLE_MEDIUM,
1691 VADISPLAYATTRIB_BLE_HIGH,
1692 VADISPLAYATTRIB_BLE_NONE,
1693 } VADisplayAttribBLEMode;
1697 VADISPLAYATTRIB_CSC_FORMAT_YCC_BT601 = 0x00,
1698 VADISPLAYATTRIB_CSC_FORMAT_YCC_BT709,
1699 VADISPLAYATTRIB_CSC_FORMAT_YCC_SMPTE_240,
1700 VADISPLAYATTRIB_CSC_FORMAT_RGB,
1701 VADISPLAYATTRIB_CSC_FORMAT_NONE,
1702 } VADisplayAttribCSCFormat;
1704 /* attribute value for VADisplayAttribRotation */
1705 #define VA_ROTATION_NONE 0x00000000
1706 #define VA_ROTATION_90 0x00000001
1707 #define VA_ROTATION_180 0x00000002
1708 #define VA_ROTATION_270 0x00000004
1710 /* attribute value for VADisplayAttribOutOfLoopDeblock */
1711 #define VA_OOL_DEBLOCKING_FALSE 0x00000000
1712 #define VA_OOL_DEBLOCKING_TRUE 0x00000001
1715 /* Currently defined display attribute types */
1718 VADisplayAttribBrightness = 0,
1719 VADisplayAttribContrast = 1,
1720 VADisplayAttribHue = 2,
1721 VADisplayAttribSaturation = 3,
1722 /* client can specifiy a background color for the target window */
1723 VADisplayAttribBackgroundColor = 4,
1725 * this is a gettable only attribute. For some implementations that use the
1726 * hardware overlay, after PutSurface is called, the surface can not be
1727 * re-used until after the subsequent PutSurface call. If this is the case
1728 * then the value for this attribute will be set to 1 so that the client
1729 * will not attempt to re-use the surface right after returning from a call
1732 * Don't use it, use flag VASurfaceDisplaying of vaQuerySurfaceStatus since
1733 * driver may use overlay or GPU alternatively
1735 VADisplayAttribDirectSurface = 5,
1736 VADisplayAttribRotation = 6,
1737 VADisplayAttribOutofLoopDeblock = 7,
1739 /* PowerVR IEP Lite specific attributes */
1740 VADisplayAttribBLEBlackMode = 8,
1741 VADisplayAttribBLEWhiteMode = 9,
1742 VADisplayAttribBlueStretch = 10,
1743 VADisplayAttribSkinColorCorrection = 11,
1745 * For type VADisplayAttribCSCMatrix, "value" field is a pointer to the color
1746 * conversion matrix. Each element in the matrix is float-point
1748 VADisplayAttribCSCMatrix = 12
1749 } VADisplayAttribType;
1751 /* flags for VADisplayAttribute */
1752 #define VA_DISPLAY_ATTRIB_NOT_SUPPORTED 0x0000
1753 #define VA_DISPLAY_ATTRIB_GETTABLE 0x0001
1754 #define VA_DISPLAY_ATTRIB_SETTABLE 0x0002
1756 typedef struct _VADisplayAttribute
1758 VADisplayAttribType type;
1761 int value; /* used by the set/get attribute functions */
1762 /* flags can be VA_DISPLAY_ATTRIB_GETTABLE or VA_DISPLAY_ATTRIB_SETTABLE or OR'd together */
1764 } VADisplayAttribute;
1766 /* Get maximum number of display attributs supported by the implementation */
1767 int vaMaxNumDisplayAttributes (
1772 * Query display attributes
1773 * The caller must provide a "attr_list" array that can hold at
1774 * least vaMaxNumDisplayAttributes() entries. The actual number of attributes
1775 * returned in "attr_list" is returned in "num_attributes".
1777 VAStatus vaQueryDisplayAttributes (
1779 VADisplayAttribute *attr_list, /* out */
1780 int *num_attributes /* out */
1784 * Get display attributes
1785 * This function returns the current attribute values in "attr_list".
1786 * Only attributes returned with VA_DISPLAY_ATTRIB_GETTABLE set in the "flags" field
1787 * from vaQueryDisplayAttributes() can have their values retrieved.
1789 VAStatus vaGetDisplayAttributes (
1791 VADisplayAttribute *attr_list, /* in/out */
1796 * Set display attributes
1797 * Only attributes returned with VA_DISPLAY_ATTRIB_SETTABLE set in the "flags" field
1798 * from vaQueryDisplayAttributes() can be set. If the attribute is not settable or
1799 * the value is out of range, the function returns VA_STATUS_ERROR_ATTR_NOT_SUPPORTED
1801 VAStatus vaSetDisplayAttributes (
1803 VADisplayAttribute *attr_list,