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22 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 * Video Acceleration (VA) API Specification
28 * <jonathan.bian@intel.com>
31 * rev 0.10 (12/10/2006 Jonathan Bian) - Initial draft
32 * rev 0.11 (12/15/2006 Jonathan Bian) - Fixed some errors
33 * rev 0.12 (02/05/2007 Jonathan Bian) - Added VC-1 data structures for slice level decode
34 * rev 0.13 (02/28/2007 Jonathan Bian) - Added GetDisplay()
35 * rev 0.14 (04/13/2007 Jonathan Bian) - Fixed MPEG-2 PictureParameter structure, cleaned up a few funcs.
36 * rev 0.15 (04/20/2007 Jonathan Bian) - Overhauled buffer management
37 * rev 0.16 (05/02/2007 Jonathan Bian) - Added error codes and fixed some issues with configuration
38 * rev 0.17 (05/07/2007 Jonathan Bian) - Added H.264/AVC data structures for slice level decode.
39 * rev 0.18 (05/14/2007 Jonathan Bian) - Added data structures for MPEG-4 slice level decode
40 * and MPEG-2 motion compensation.
41 * rev 0.19 (08/06/2007 Jonathan Bian) - Removed extra type for bitplane data.
42 * rev 0.20 (08/08/2007 Jonathan Bian) - Added missing fields to VC-1 PictureParameter structure.
43 * rev 0.21 (08/20/2007 Jonathan Bian) - Added image and subpicture support.
44 * rev 0.22 (08/27/2007 Jonathan Bian) - Added support for chroma-keying and global alpha.
45 * rev 0.23 (09/11/2007 Jonathan Bian) - Fixed some issues with images and subpictures.
46 * rev 0.24 (09/18/2007 Jonathan Bian) - Added display attributes.
47 * rev 0.25 (10/18/2007 Jonathan Bian) - Changed to use IDs only for some types.
48 * rev 0.26 (11/07/2007 Waldo Bastian) - Change vaCreateBuffer semantics
49 * rev 0.27 (11/19/2007 Matt Sottek) - Added DeriveImage
50 * rev 0.28 (12/06/2007 Jonathan Bian) - Added new versions of PutImage and AssociateSubpicture
52 * rev 0.29 (02/07/2008 Jonathan Bian) - VC1 parameter fixes,
53 * added VA_STATUS_ERROR_RESOLUTION_NOT_SUPPORTED
54 * rev 0.30 (03/01/2009 Jonathan Bian) - Added encoding support for H.264 BP and MPEG-4 SP and fixes
55 * for ISO C conformance.
56 * rev 0.31 (09/02/2009 Gwenole Beauchesne) - VC-1/H264 fields change for VDPAU and XvBA backend
57 * Application needs to relink with the new library.
59 * rev 0.31.1 (03/29/2009) - Data structure for JPEG encode
62 * Some concepts borrowed from XvMC and XvImage.
63 * Waldo Bastian (Intel), Matt Sottek (Intel), Austin Yuan (Intel), and Gwenole Beauchesne (SDS)
64 * contributed to various aspects of the API.
70 #include <va/va_version.h>
79 The VA API is intended to provide an interface between a video decode/encode/display
80 application (client) and a hardware accelerator (server), to off-load
81 video decode/encode/display operations from the host to the hardware accelerator at various
84 The basic operation steps are:
86 - Negotiate a mutually acceptable configuration with the server to lock
87 down profile, entrypoints, and other attributes that will not change on
88 a frame-by-frame basis.
89 - Create a decode context which represents a "virtualized" hardware decode
91 - Get and fill decode buffers with picture level, slice level and macroblock
92 level data (depending on entrypoints)
93 - Pass the decode buffers to the server to decode the current frame
95 Initialization & Configuration Management
97 - Find out supported profiles
98 - Find out entrypoints for a given profile
99 - Find out configuration attributes for a given profile/entrypoint pair
100 - Create a configuration for use by the decoder
104 typedef void* VADisplay; /* window system dependent */
106 typedef int VAStatus; /* Return status type from functions */
107 /* Values for the return status */
108 #define VA_STATUS_SUCCESS 0x00000000
109 #define VA_STATUS_ERROR_OPERATION_FAILED 0x00000001
110 #define VA_STATUS_ERROR_ALLOCATION_FAILED 0x00000002
111 #define VA_STATUS_ERROR_INVALID_DISPLAY 0x00000003
112 #define VA_STATUS_ERROR_INVALID_CONFIG 0x00000004
113 #define VA_STATUS_ERROR_INVALID_CONTEXT 0x00000005
114 #define VA_STATUS_ERROR_INVALID_SURFACE 0x00000006
115 #define VA_STATUS_ERROR_INVALID_BUFFER 0x00000007
116 #define VA_STATUS_ERROR_INVALID_IMAGE 0x00000008
117 #define VA_STATUS_ERROR_INVALID_SUBPICTURE 0x00000009
118 #define VA_STATUS_ERROR_ATTR_NOT_SUPPORTED 0x0000000a
119 #define VA_STATUS_ERROR_MAX_NUM_EXCEEDED 0x0000000b
120 #define VA_STATUS_ERROR_UNSUPPORTED_PROFILE 0x0000000c
121 #define VA_STATUS_ERROR_UNSUPPORTED_ENTRYPOINT 0x0000000d
122 #define VA_STATUS_ERROR_UNSUPPORTED_RT_FORMAT 0x0000000e
123 #define VA_STATUS_ERROR_UNSUPPORTED_BUFFERTYPE 0x0000000f
124 #define VA_STATUS_ERROR_SURFACE_BUSY 0x00000010
125 #define VA_STATUS_ERROR_FLAG_NOT_SUPPORTED 0x00000011
126 #define VA_STATUS_ERROR_INVALID_PARAMETER 0x00000012
127 #define VA_STATUS_ERROR_RESOLUTION_NOT_SUPPORTED 0x00000013
128 #define VA_STATUS_ERROR_UNIMPLEMENTED 0x00000014
129 #define VA_STATUS_ERROR_SURFACE_IN_DISPLAYING 0x00000015
130 #define VA_STATUS_ERROR_INVALID_IMAGE_FORMAT 0x00000016
131 #define VA_STATUS_ERROR_DECODING_ERROR 0x00000017
132 #define VA_STATUS_ERROR_ENCODING_ERROR 0x00000018
133 #define VA_STATUS_ERROR_UNKNOWN 0xFFFFFFFF
135 /* De-interlacing flags for vaPutSurface() */
136 #define VA_FRAME_PICTURE 0x00000000
137 #define VA_TOP_FIELD 0x00000001
138 #define VA_BOTTOM_FIELD 0x00000002
141 * Enabled the positioning/cropping/blending feature:
142 * 1, specify the video playback position in the isurface
143 * 2, specify the cropping info for video playback
144 * 3, encoded video will blend with background color
146 #define VA_ENABLE_BLEND 0x00000004 /* video area blend with the constant color */
149 * Clears the drawable with background color.
150 * for hardware overlay based implementation this flag
151 * can be used to turn off the overlay
153 #define VA_CLEAR_DRAWABLE 0x00000008
155 /* Color space conversion flags for vaPutSurface() */
156 #define VA_SRC_BT601 0x00000010
157 #define VA_SRC_BT709 0x00000020
158 #define VA_SRC_SMPTE_240 0x00000040
160 /* Scaling flags for vaPutSurface() */
161 #define VA_FILTER_SCALING_DEFAULT 0x00000000
162 #define VA_FILTER_SCALING_FAST 0x00000100
163 #define VA_FILTER_SCALING_HQ 0x00000200
164 #define VA_FILTER_SCALING_NL_ANAMORPHIC 0x00000300
165 #define VA_FILTER_SCALING_MASK 0x00000f00
168 * Returns a short english description of error_status
170 const char *vaErrorStr(VAStatus error_status);
174 * A display must be obtained by calling vaGetDisplay() before calling
175 * vaInitialize() and other functions. This connects the API to the
176 * native window system.
177 * For X Windows, native_dpy would be from XOpenDisplay()
179 typedef void* NativeDisplay; /* window system dependent */
181 int vaDisplayIsValid(VADisplay dpy);
184 * Initialize the library
186 VAStatus vaInitialize (
188 int *major_version, /* out */
189 int *minor_version /* out */
193 * After this call, all library internal resources will be cleaned up
195 VAStatus vaTerminate (
200 * vaQueryVendorString returns a pointer to a zero-terminated string
201 * describing some aspects of the VA implemenation on a specific
202 * hardware accelerator. The format of the returned string is vendor
203 * specific and at the discretion of the implementer.
204 * e.g. for the Intel GMA500 implementation, an example would be:
205 * "Intel GMA500 - 2.0.0.32L.0005"
207 const char *vaQueryVendorString (
211 typedef int (*VAPrivFunc)();
214 * Return a function pointer given a function name in the library.
215 * This allows private interfaces into the library
217 VAPrivFunc vaGetLibFunc (
222 /* Currently defined profiles */
225 VAProfileMPEG2Simple = 0,
226 VAProfileMPEG2Main = 1,
227 VAProfileMPEG4Simple = 2,
228 VAProfileMPEG4AdvancedSimple = 3,
229 VAProfileMPEG4Main = 4,
230 VAProfileH264Baseline = 5,
231 VAProfileH264Main = 6,
232 VAProfileH264High = 7,
233 VAProfileVC1Simple = 8,
234 VAProfileVC1Main = 9,
235 VAProfileVC1Advanced = 10,
236 VAProfileH263Baseline = 11,
237 VAProfileJPEGBaseline = 12,
238 VAProfileH264ConstrainedBaseline = 13
242 * Currently defined entrypoints
248 VAEntrypointIDCT = 3,
249 VAEntrypointMoComp = 4,
250 VAEntrypointDeblocking = 5,
251 VAEntrypointEncSlice = 6, /* slice level encode */
252 VAEntrypointEncPicture = 7 /* pictuer encode, JPEG, etc */
255 /* Currently defined configuration attribute types */
258 VAConfigAttribRTFormat = 0,
259 VAConfigAttribSpatialResidual = 1,
260 VAConfigAttribSpatialClipping = 2,
261 VAConfigAttribIntraResidual = 3,
262 VAConfigAttribEncryption = 4,
263 VAConfigAttribRateControl = 5
264 } VAConfigAttribType;
267 * Configuration attributes
268 * If there is more than one value for an attribute, a default
269 * value will be assigned to the attribute if the client does not
270 * specify the attribute when creating a configuration
272 typedef struct _VAConfigAttrib {
273 VAConfigAttribType type;
274 unsigned int value; /* OR'd flags (bits) for this attribute */
277 /* attribute value for VAConfigAttribRTFormat */
278 #define VA_RT_FORMAT_YUV420 0x00000001
279 #define VA_RT_FORMAT_YUV422 0x00000002
280 #define VA_RT_FORMAT_YUV444 0x00000004
281 #define VA_RT_FORMAT_PROTECTED 0x80000000
283 /* attribute value for VAConfigAttribRateControl */
284 #define VA_RC_NONE 0x00000001
285 #define VA_RC_CBR 0x00000002
286 #define VA_RC_VBR 0x00000004
287 #define VA_RC_VCM 0x00000008 /* video conference mode */
290 * if an attribute is not applicable for a given
291 * profile/entrypoint pair, then set the value to the following
293 #define VA_ATTRIB_NOT_SUPPORTED 0x80000000
295 /* Get maximum number of profiles supported by the implementation */
296 int vaMaxNumProfiles (
300 /* Get maximum number of entrypoints supported by the implementation */
301 int vaMaxNumEntrypoints (
305 /* Get maximum number of attributs supported by the implementation */
306 int vaMaxNumConfigAttributes (
311 * Query supported profiles
312 * The caller must provide a "profile_list" array that can hold at
313 * least vaMaxNumProfile() entries. The actual number of profiles
314 * returned in "profile_list" is returned in "num_profile".
316 VAStatus vaQueryConfigProfiles (
318 VAProfile *profile_list, /* out */
319 int *num_profiles /* out */
323 * Query supported entrypoints for a given profile
324 * The caller must provide an "entrypoint_list" array that can hold at
325 * least vaMaxNumEntrypoints() entries. The actual number of entrypoints
326 * returned in "entrypoint_list" is returned in "num_entrypoints".
328 VAStatus vaQueryConfigEntrypoints (
331 VAEntrypoint *entrypoint_list, /* out */
332 int *num_entrypoints /* out */
336 * Get attributes for a given profile/entrypoint pair
337 * The caller must provide an "attrib_list" with all attributes to be
338 * retrieved. Upon return, the attributes in "attrib_list" have been
339 * updated with their value. Unknown attributes or attributes that are
340 * not supported for the given profile/entrypoint pair will have their
341 * value set to VA_ATTRIB_NOT_SUPPORTED
343 VAStatus vaGetConfigAttributes (
346 VAEntrypoint entrypoint,
347 VAConfigAttrib *attrib_list, /* in/out */
351 /* Generic ID type, can be re-typed for specific implementation */
352 typedef unsigned int VAGenericID;
354 typedef VAGenericID VAConfigID;
357 * Create a configuration for the decode pipeline
358 * it passes in the attribute list that specifies the attributes it cares
359 * about, with the rest taking default values.
361 VAStatus vaCreateConfig (
364 VAEntrypoint entrypoint,
365 VAConfigAttrib *attrib_list,
367 VAConfigID *config_id /* out */
371 * Free resources associdated with a given config
373 VAStatus vaDestroyConfig (
379 * Query all attributes for a given configuration
380 * The profile of the configuration is returned in "profile"
381 * The entrypoint of the configuration is returned in "entrypoint"
382 * The caller must provide an "attrib_list" array that can hold at least
383 * vaMaxNumConfigAttributes() entries. The actual number of attributes
384 * returned in "attrib_list" is returned in "num_attribs"
386 VAStatus vaQueryConfigAttributes (
388 VAConfigID config_id,
389 VAProfile *profile, /* out */
390 VAEntrypoint *entrypoint, /* out */
391 VAConfigAttrib *attrib_list,/* out */
392 int *num_attribs /* out */
397 * Contexts and Surfaces
399 * Context represents a "virtual" video decode pipeline. Surfaces are render
400 * targets for a given context. The data in the surfaces are not accessible
401 * to the client and the internal data format of the surface is implementatin
404 * Surfaces will be bound to a context when the context is created. Once
405 * a surface is bound to a given context, it can not be used to create
406 * another context. The association is removed when the context is destroyed
408 * Both contexts and surfaces are identified by unique IDs and its
409 * implementation specific internals are kept opaque to the clients
412 typedef VAGenericID VAContextID;
414 typedef VAGenericID VASurfaceID;
416 #define VA_INVALID_ID 0xffffffff
417 #define VA_INVALID_SURFACE VA_INVALID_ID
420 * vaCreateSurfaces - Create an array of surfaces used for decode and display
422 * width: surface width
423 * height: surface height
424 * format: VA_RT_FORMAT_YUV420, VA_RT_FORMAT_YUV422 or VA_RT_FORMAT_YUV444
425 * num_surfaces: number of surfaces to be created
426 * surfaces: array of surfaces created upon return
428 VAStatus vaCreateSurfaces (
434 VASurfaceID *surfaces /* out */
439 * vaDestroySurfaces - Destroy resources associated with surfaces.
440 * Surfaces can only be destroyed after the context associated has been
443 * surfaces: array of surfaces to destroy
444 * num_surfaces: number of surfaces in the array to be destroyed.
446 VAStatus vaDestroySurfaces (
448 VASurfaceID *surfaces,
452 #define VA_PROGRESSIVE 0x1
454 * vaCreateContext - Create a context
456 * config_id: configuration for the context
457 * picture_width: coded picture width
458 * picture_height: coded picture height
459 * flag: any combination of the following:
460 * VA_PROGRESSIVE (only progressive frame pictures in the sequence when set)
461 * render_targets: render targets (surfaces) tied to the context
462 * num_render_targets: number of render targets in the above array
463 * context: created context id upon return
465 VAStatus vaCreateContext (
467 VAConfigID config_id,
471 VASurfaceID *render_targets,
472 int num_render_targets,
473 VAContextID *context /* out */
477 * vaDestroyContext - Destroy a context
479 * context: context to be destroyed
481 VAStatus vaDestroyContext (
488 * Buffers are used to pass various types of data from the
489 * client to the server. The server maintains a data store
490 * for each buffer created, and the client idenfies a buffer
491 * through a unique buffer id assigned by the server.
494 typedef VAGenericID VABufferID;
498 VAPictureParameterBufferType = 0,
499 VAIQMatrixBufferType = 1,
500 VABitPlaneBufferType = 2,
501 VASliceGroupMapBufferType = 3,
502 VASliceParameterBufferType = 4,
503 VASliceDataBufferType = 5,
504 VAMacroblockParameterBufferType = 6,
505 VAResidualDataBufferType = 7,
506 VADeblockingParameterBufferType = 8,
507 VAImageBufferType = 9,
508 VAProtectedSliceDataBufferType = 10,
509 VAQMatrixBufferType = 11,
510 /* Following are encode buffer types */
511 VAEncCodedBufferType = 21,
512 VAEncSequenceParameterBufferType = 22,
513 VAEncPictureParameterBufferType = 23,
514 VAEncSliceParameterBufferType = 24,
515 VAEncH264VUIBufferType = 25,
516 VAEncH264SEIBufferType = 26,
517 VAEncMiscParameterBufferType = 27,
518 VABufferTypeMax = 0xff
523 VAEncMiscParameterTypeFrameRate = 0,
524 VAEncMiscParameterTypeRateControl = 1,
525 VAEncMiscParameterTypeMaxSliceSize = 2,
526 VAEncMiscParameterTypeAIR = 3,
527 } VAEncMiscParameterType;
530 * For application, e.g. set a new bitrate
532 * VAEncMiscParameterBuffer *misc_param;
533 * VAEncMiscParameterRateControl *misc_rate_ctrl;
535 * vaCreateBuffer(dpy, context, VAEncMiscParameterBufferType,
536 * sizeof(VAEncMiscParameterBuffer) + sizeof(VAEncMiscParameterRateControl),
539 * vaMapBuffer(dpy,buf_id,(void **)&misc_param);
540 * misc_param->type = VAEncMiscParameterTypeRateControl;
541 * misc_rate_ctrl= (VAEncMiscParameterRateControl *)misc_param->data;
542 * misc_rate_ctrl->bits_per_second = 6400000;
543 * vaUnmapBuffer(dpy, buf_id);
544 * vaRenderPicture(dpy, context, &buf_id, 1);
546 typedef struct _VAEncMiscParameterBuffer
548 VAEncMiscParameterType type;
549 unsigned int data[0];
550 } VAEncMiscParameterBuffer;
552 typedef struct _VAEncMiscParameterRateControl
554 unsigned int bits_per_second; /* this is the maximum bit-rate to be constrained by the rate control implementation */
555 unsigned int target_percentage; /* this is the bit-rate the rate control is targeting, as a percentage of the maximum bit-rate */
556 /* for example if target_percentage is 95 then the rate control will target a bit-rate that is */
557 /* 95% of the maximum bit-rate */
558 unsigned int window_size; /* windows size in milliseconds. For example if this is set to 500, then the rate control will guarantee the */
559 /* target bit-rate over a 500 ms window */
560 unsigned int initial_qp; /* initial QP at I frames */
562 } VAEncMiscParameterRateControl;
564 typedef struct _VAEncMiscParameterFrameRate
566 unsigned int framerate;
567 } VAEncMiscParameterFrameRate;
570 * Allow a maximum slice size to be specified (in bits).
571 * The encoder will attempt to make sure that individual slices do not exceed this size
572 * Or to signal applicate if the slice size exceed this size, see "status" of VACodedBufferSegment
574 typedef struct _VAEncMiscParameterMaxSliceSize
576 unsigned int max_slice_size;
577 } VAEncMiscParameterMaxSliceSize;
579 typedef struct _VAEncMiscParameterAIR
581 unsigned int air_num_mbs;
582 unsigned int air_threshold;
583 unsigned int air_auto; /* if set to 1 then hardware auto-tune the AIR threshold */
584 } VAEncMiscParameterAIR;
588 * There will be cases where the bitstream buffer will not have enough room to hold
589 * the data for the entire slice, and the following flags will be used in the slice
590 * parameter to signal to the server for the possible cases.
591 * If a slice parameter buffer and slice data buffer pair is sent to the server with
592 * the slice data partially in the slice data buffer (BEGIN and MIDDLE cases below),
593 * then a slice parameter and data buffer needs to be sent again to complete this slice.
595 #define VA_SLICE_DATA_FLAG_ALL 0x00 /* whole slice is in the buffer */
596 #define VA_SLICE_DATA_FLAG_BEGIN 0x01 /* The beginning of the slice is in the buffer but the end if not */
597 #define VA_SLICE_DATA_FLAG_MIDDLE 0x02 /* Neither beginning nor end of the slice is in the buffer */
598 #define VA_SLICE_DATA_FLAG_END 0x04 /* end of the slice is in the buffer */
600 /* Codec-independent Slice Parameter Buffer base */
601 typedef struct _VASliceParameterBufferBase
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 definitions */
606 } VASliceParameterBufferBase;
609 /****************************
610 * JEPG data structure
611 ***************************/
612 typedef struct _VAQMatrixBufferJPEG
614 int load_lum_quantiser_matrix;
615 int load_chroma_quantiser_matrix;
616 unsigned char lum_quantiser_matrix[64];
617 unsigned char chroma_quantiser_matrix[64];
618 } VAQMatrixBufferJPEG;
620 typedef struct _VAEncPictureParameterBufferJPEG
622 VASurfaceID reconstructed_picture;
623 unsigned short picture_width;
624 unsigned short picture_height;
625 VABufferID coded_buf;
626 } VAEncPictureParameterBufferJPEG;
629 /****************************
630 * MPEG-2 data structures
631 ****************************/
633 /* MPEG-2 Picture Parameter Buffer */
635 * For each frame or field, and before any slice data, a single
636 * picture parameter buffer must be send.
638 typedef struct _VAPictureParameterBufferMPEG2
640 unsigned short horizontal_size;
641 unsigned short vertical_size;
642 VASurfaceID forward_reference_picture;
643 VASurfaceID backward_reference_picture;
644 /* meanings of the following fields are the same as in the standard */
645 int picture_coding_type;
646 int f_code; /* pack all four fcode into this */
649 unsigned int intra_dc_precision : 2;
650 unsigned int picture_structure : 2;
651 unsigned int top_field_first : 1;
652 unsigned int frame_pred_frame_dct : 1;
653 unsigned int concealment_motion_vectors : 1;
654 unsigned int q_scale_type : 1;
655 unsigned int intra_vlc_format : 1;
656 unsigned int alternate_scan : 1;
657 unsigned int repeat_first_field : 1;
658 unsigned int progressive_frame : 1;
659 unsigned int is_first_field : 1; /* indicate whether the current field
660 * is the first field for field picture
664 } picture_coding_extension;
665 } VAPictureParameterBufferMPEG2;
667 /* MPEG-2 Inverse Quantization Matrix Buffer */
668 typedef struct _VAIQMatrixBufferMPEG2
670 int load_intra_quantiser_matrix;
671 int load_non_intra_quantiser_matrix;
672 int load_chroma_intra_quantiser_matrix;
673 int load_chroma_non_intra_quantiser_matrix;
674 unsigned char intra_quantiser_matrix[64];
675 unsigned char non_intra_quantiser_matrix[64];
676 unsigned char chroma_intra_quantiser_matrix[64];
677 unsigned char chroma_non_intra_quantiser_matrix[64];
678 } VAIQMatrixBufferMPEG2;
680 /* MPEG-2 Slice Parameter Buffer */
681 typedef struct _VASliceParameterBufferMPEG2
683 unsigned int slice_data_size;/* number of bytes in the slice data buffer for this slice */
684 unsigned int slice_data_offset;/* the offset to the first byte of slice data */
685 unsigned int slice_data_flag; /* see VA_SLICE_DATA_FLAG_XXX defintions */
686 unsigned int macroblock_offset;/* the offset to the first bit of MB from the first byte of slice data */
687 unsigned int slice_horizontal_position;
688 unsigned int slice_vertical_position;
689 int quantiser_scale_code;
690 int intra_slice_flag;
691 } VASliceParameterBufferMPEG2;
693 /* MPEG-2 Macroblock Parameter Buffer */
694 typedef struct _VAMacroblockParameterBufferMPEG2
696 unsigned short macroblock_address;
698 * macroblock_address (in raster scan order)
700 * bottom-right: picture-height-in-mb*picture-width-in-mb - 1
702 unsigned char macroblock_type; /* see definition below */
705 unsigned int frame_motion_type : 2;
706 unsigned int field_motion_type : 2;
707 unsigned int dct_type : 1;
711 unsigned char motion_vertical_field_select;
713 * motion_vertical_field_select:
714 * see section 6.3.17.2 in the spec
715 * only the lower 4 bits are used
716 * bit 0: first vector forward
717 * bit 1: first vector backward
718 * bit 2: second vector forward
719 * bit 3: second vector backward
721 short PMV[2][2][2]; /* see Table 7-7 in the spec */
722 unsigned short coded_block_pattern;
724 * The bitplanes for coded_block_pattern are described
725 * in Figure 6.10-12 in the spec
728 /* Number of skipped macroblocks after this macroblock */
729 unsigned short num_skipped_macroblocks;
730 } VAMacroblockParameterBufferMPEG2;
733 * OR'd flags for macroblock_type (section 6.3.17.1 in the spec)
735 #define VA_MB_TYPE_MOTION_FORWARD 0x02
736 #define VA_MB_TYPE_MOTION_BACKWARD 0x04
737 #define VA_MB_TYPE_MOTION_PATTERN 0x08
738 #define VA_MB_TYPE_MOTION_INTRA 0x10
741 * MPEG-2 Residual Data Buffer
742 * For each macroblock, there wil be 64 shorts (16-bit) in the
743 * residual data buffer
746 /****************************
747 * MPEG-4 Part 2 data structures
748 ****************************/
750 /* MPEG-4 Picture Parameter Buffer */
752 * For each frame or field, and before any slice data, a single
753 * picture parameter buffer must be send.
755 typedef struct _VAPictureParameterBufferMPEG4
757 unsigned short vop_width;
758 unsigned short vop_height;
759 VASurfaceID forward_reference_picture;
760 VASurfaceID backward_reference_picture;
763 unsigned int short_video_header : 1;
764 unsigned int chroma_format : 2;
765 unsigned int interlaced : 1;
766 unsigned int obmc_disable : 1;
767 unsigned int sprite_enable : 2;
768 unsigned int sprite_warping_accuracy : 2;
769 unsigned int quant_type : 1;
770 unsigned int quarter_sample : 1;
771 unsigned int data_partitioned : 1;
772 unsigned int reversible_vlc : 1;
773 unsigned int resync_marker_disable : 1;
777 unsigned char no_of_sprite_warping_points;
778 short sprite_trajectory_du[3];
779 short sprite_trajectory_dv[3];
780 unsigned char quant_precision;
783 unsigned int vop_coding_type : 2;
784 unsigned int backward_reference_vop_coding_type : 2;
785 unsigned int vop_rounding_type : 1;
786 unsigned int intra_dc_vlc_thr : 3;
787 unsigned int top_field_first : 1;
788 unsigned int alternate_vertical_scan_flag : 1;
792 unsigned char vop_fcode_forward;
793 unsigned char vop_fcode_backward;
794 unsigned short vop_time_increment_resolution;
795 /* short header related */
796 unsigned char num_gobs_in_vop;
797 unsigned char num_macroblocks_in_gob;
798 /* for direct mode prediction */
801 } VAPictureParameterBufferMPEG4;
803 /* MPEG-4 Inverse Quantization Matrix Buffer */
804 typedef struct _VAIQMatrixBufferMPEG4
806 int load_intra_quant_mat;
807 int load_non_intra_quant_mat;
808 unsigned char intra_quant_mat[64];
809 unsigned char non_intra_quant_mat[64];
810 } VAIQMatrixBufferMPEG4;
812 /* MPEG-4 Slice Parameter Buffer */
813 typedef struct _VASliceParameterBufferMPEG4
815 unsigned int slice_data_size;/* number of bytes in the slice data buffer for this slice */
816 unsigned int slice_data_offset;/* the offset to the first byte of slice data */
817 unsigned int slice_data_flag; /* see VA_SLICE_DATA_FLAG_XXX defintions */
818 unsigned int macroblock_offset;/* the offset to the first bit of MB from the first byte of slice data */
819 unsigned int macroblock_number;
821 } VASliceParameterBufferMPEG4;
827 typedef enum /* see 7.1.1.32 */
830 VAMvMode1MvHalfPel = 1,
831 VAMvMode1MvHalfPelBilinear = 2,
833 VAMvModeIntensityCompensation = 4
836 /* VC-1 Picture Parameter Buffer */
838 * For each picture, and before any slice data, a picture parameter
839 * buffer must be send. Multiple picture parameter buffers may be
840 * sent for a single picture. In that case picture parameters will
841 * apply to all slice data that follow it until a new picture
842 * parameter buffer is sent.
845 * pic_quantizer_type should be set to the applicable quantizer
846 * type as defined by QUANTIZER (J.1.19) and either
847 * PQUANTIZER (7.1.1.8) or PQINDEX (7.1.1.6)
849 typedef struct _VAPictureParameterBufferVC1
851 VASurfaceID forward_reference_picture;
852 VASurfaceID backward_reference_picture;
853 /* if out-of-loop post-processing is done on the render
854 target, then we need to keep the in-loop decoded
855 picture as a reference picture */
856 VASurfaceID inloop_decoded_picture;
858 /* sequence layer for AP or meta data for SP and MP */
861 unsigned int pulldown : 1; /* SEQUENCE_LAYER::PULLDOWN */
862 unsigned int interlace : 1; /* SEQUENCE_LAYER::INTERLACE */
863 unsigned int tfcntrflag : 1; /* SEQUENCE_LAYER::TFCNTRFLAG */
864 unsigned int finterpflag : 1; /* SEQUENCE_LAYER::FINTERPFLAG */
865 unsigned int psf : 1; /* SEQUENCE_LAYER::PSF */
866 unsigned int multires : 1; /* METADATA::MULTIRES */
867 unsigned int overlap : 1; /* METADATA::OVERLAP */
868 unsigned int syncmarker : 1; /* METADATA::SYNCMARKER */
869 unsigned int rangered : 1; /* METADATA::RANGERED */
870 unsigned int max_b_frames : 3; /* METADATA::MAXBFRAMES */
875 unsigned short coded_width; /* ENTRY_POINT_LAYER::CODED_WIDTH */
876 unsigned short coded_height; /* ENTRY_POINT_LAYER::CODED_HEIGHT */
879 unsigned int broken_link : 1; /* ENTRY_POINT_LAYER::BROKEN_LINK */
880 unsigned int closed_entry : 1; /* ENTRY_POINT_LAYER::CLOSED_ENTRY */
881 unsigned int panscan_flag : 1; /* ENTRY_POINT_LAYER::PANSCAN_FLAG */
882 unsigned int loopfilter : 1; /* ENTRY_POINT_LAYER::LOOPFILTER */
886 unsigned char conditional_overlap_flag; /* ENTRY_POINT_LAYER::CONDOVER */
887 unsigned char fast_uvmc_flag; /* ENTRY_POINT_LAYER::FASTUVMC */
890 unsigned int luma_flag : 1; /* ENTRY_POINT_LAYER::RANGE_MAPY_FLAG */
891 unsigned int luma : 3; /* ENTRY_POINT_LAYER::RANGE_MAPY */
892 unsigned int chroma_flag : 1; /* ENTRY_POINT_LAYER::RANGE_MAPUV_FLAG */
893 unsigned int chroma : 3; /* ENTRY_POINT_LAYER::RANGE_MAPUV */
896 } range_mapping_fields;
898 unsigned char b_picture_fraction; /* PICTURE_LAYER::BFRACTION */
899 unsigned char cbp_table; /* PICTURE_LAYER::CBPTAB/ICBPTAB */
900 unsigned char mb_mode_table; /* PICTURE_LAYER::MBMODETAB */
901 unsigned char range_reduction_frame;/* PICTURE_LAYER::RANGEREDFRM */
902 unsigned char rounding_control; /* PICTURE_LAYER::RNDCTRL */
903 unsigned char post_processing; /* PICTURE_LAYER::POSTPROC */
904 unsigned char picture_resolution_index; /* PICTURE_LAYER::RESPIC */
905 unsigned char luma_scale; /* PICTURE_LAYER::LUMSCALE */
906 unsigned char luma_shift; /* PICTURE_LAYER::LUMSHIFT */
909 unsigned int picture_type : 3; /* PICTURE_LAYER::PTYPE */
910 unsigned int frame_coding_mode : 3; /* PICTURE_LAYER::FCM */
911 unsigned int top_field_first : 1; /* PICTURE_LAYER::TFF */
912 unsigned int is_first_field : 1; /* set to 1 if it is the first field */
913 unsigned int intensity_compensation : 1; /* PICTURE_LAYER::INTCOMP */
919 unsigned int mv_type_mb : 1; /* PICTURE::MVTYPEMB */
920 unsigned int direct_mb : 1; /* PICTURE::DIRECTMB */
921 unsigned int skip_mb : 1; /* PICTURE::SKIPMB */
922 unsigned int field_tx : 1; /* PICTURE::FIELDTX */
923 unsigned int forward_mb : 1; /* PICTURE::FORWARDMB */
924 unsigned int ac_pred : 1; /* PICTURE::ACPRED */
925 unsigned int overflags : 1; /* PICTURE::OVERFLAGS */
931 unsigned int bp_mv_type_mb : 1; /* PICTURE::MVTYPEMB */
932 unsigned int bp_direct_mb : 1; /* PICTURE::DIRECTMB */
933 unsigned int bp_skip_mb : 1; /* PICTURE::SKIPMB */
934 unsigned int bp_field_tx : 1; /* PICTURE::FIELDTX */
935 unsigned int bp_forward_mb : 1; /* PICTURE::FORWARDMB */
936 unsigned int bp_ac_pred : 1; /* PICTURE::ACPRED */
937 unsigned int bp_overflags : 1; /* PICTURE::OVERFLAGS */
940 } bitplane_present; /* signal what bitplane is being passed via the bitplane buffer */
943 unsigned int reference_distance_flag : 1;/* PICTURE_LAYER::REFDIST_FLAG */
944 unsigned int reference_distance : 5;/* PICTURE_LAYER::REFDIST */
945 unsigned int num_reference_pictures: 1;/* PICTURE_LAYER::NUMREF */
946 unsigned int reference_field_pic_indicator : 1;/* PICTURE_LAYER::REFFIELD */
952 unsigned int mv_mode : 3; /* PICTURE_LAYER::MVMODE */
953 unsigned int mv_mode2 : 3; /* PICTURE_LAYER::MVMODE2 */
954 unsigned int mv_table : 3; /* PICTURE_LAYER::MVTAB/IMVTAB */
955 unsigned int two_mv_block_pattern_table: 2; /* PICTURE_LAYER::2MVBPTAB */
956 unsigned int four_mv_switch : 1; /* PICTURE_LAYER::4MVSWITCH */
957 unsigned int four_mv_block_pattern_table : 2; /* PICTURE_LAYER::4MVBPTAB */
958 unsigned int extended_mv_flag : 1; /* ENTRY_POINT_LAYER::EXTENDED_MV */
959 unsigned int extended_mv_range : 2; /* PICTURE_LAYER::MVRANGE */
960 unsigned int extended_dmv_flag : 1; /* ENTRY_POINT_LAYER::EXTENDED_DMV */
961 unsigned int extended_dmv_range : 2; /* PICTURE_LAYER::DMVRANGE */
967 unsigned int dquant : 2; /* ENTRY_POINT_LAYER::DQUANT */
968 unsigned int quantizer : 2; /* ENTRY_POINT_LAYER::QUANTIZER */
969 unsigned int half_qp : 1; /* PICTURE_LAYER::HALFQP */
970 unsigned int pic_quantizer_scale : 5;/* PICTURE_LAYER::PQUANT */
971 unsigned int pic_quantizer_type : 1;/* PICTURE_LAYER::PQUANTIZER */
972 unsigned int dq_frame : 1; /* VOPDQUANT::DQUANTFRM */
973 unsigned int dq_profile : 2; /* VOPDQUANT::DQPROFILE */
974 unsigned int dq_sb_edge : 2; /* VOPDQUANT::DQSBEDGE */
975 unsigned int dq_db_edge : 2; /* VOPDQUANT::DQDBEDGE */
976 unsigned int dq_binary_level : 1; /* VOPDQUANT::DQBILEVEL */
977 unsigned int alt_pic_quantizer : 5;/* VOPDQUANT::ALTPQUANT */
980 } pic_quantizer_fields;
983 unsigned int variable_sized_transform_flag : 1;/* ENTRY_POINT_LAYER::VSTRANSFORM */
984 unsigned int mb_level_transform_type_flag : 1;/* PICTURE_LAYER::TTMBF */
985 unsigned int frame_level_transform_type : 2;/* PICTURE_LAYER::TTFRM */
986 unsigned int transform_ac_codingset_idx1 : 2;/* PICTURE_LAYER::TRANSACFRM */
987 unsigned int transform_ac_codingset_idx2 : 2;/* PICTURE_LAYER::TRANSACFRM2 */
988 unsigned int intra_transform_dc_table : 1;/* PICTURE_LAYER::TRANSDCTAB */
992 } VAPictureParameterBufferVC1;
994 /* VC-1 Bitplane Buffer
995 There will be at most three bitplanes coded in any picture header. To send
996 the bitplane data more efficiently, each byte is divided in two nibbles, with
997 each nibble carrying three bitplanes for one macroblock. The following table
998 shows the bitplane data arrangement within each nibble based on the picture
1001 Picture Type Bit3 Bit2 Bit1 Bit0
1002 I or BI OVERFLAGS ACPRED FIELDTX
1003 P MYTYPEMB SKIPMB DIRECTMB
1004 B FORWARDMB SKIPMB DIRECTMB
1006 Within each byte, the lower nibble is for the first MB and the upper nibble is
1007 for the second MB. E.g. the lower nibble of the first byte in the bitplane
1008 buffer is for Macroblock #1 and the upper nibble of the first byte is for
1009 Macroblock #2 in the first row.
1012 /* VC-1 Slice Parameter Buffer */
1013 typedef struct _VASliceParameterBufferVC1
1015 unsigned int slice_data_size;/* number of bytes in the slice data buffer for this slice */
1016 unsigned int slice_data_offset;/* the offset to the first byte of slice data */
1017 unsigned int slice_data_flag; /* see VA_SLICE_DATA_FLAG_XXX defintions */
1018 unsigned int macroblock_offset;/* the offset to the first bit of MB from the first byte of slice data */
1019 unsigned int slice_vertical_position;
1020 } VASliceParameterBufferVC1;
1022 /* VC-1 Slice Data Buffer */
1024 This is simplely a buffer containing raw bit-stream bytes
1027 /****************************
1028 * H.264/AVC data structures
1029 ****************************/
1031 typedef struct _VAPictureH264
1033 VASurfaceID picture_id;
1034 unsigned int frame_idx;
1036 unsigned int TopFieldOrderCnt;
1037 unsigned int BottomFieldOrderCnt;
1039 /* flags in VAPictureH264 could be OR of the following */
1040 #define VA_PICTURE_H264_INVALID 0x00000001
1041 #define VA_PICTURE_H264_TOP_FIELD 0x00000002
1042 #define VA_PICTURE_H264_BOTTOM_FIELD 0x00000004
1043 #define VA_PICTURE_H264_SHORT_TERM_REFERENCE 0x00000008
1044 #define VA_PICTURE_H264_LONG_TERM_REFERENCE 0x00000010
1046 /* H.264 Picture Parameter Buffer */
1048 * For each picture, and before any slice data, a single
1049 * picture parameter buffer must be send.
1051 typedef struct _VAPictureParameterBufferH264
1053 VAPictureH264 CurrPic;
1054 VAPictureH264 ReferenceFrames[16]; /* in DPB */
1055 unsigned short picture_width_in_mbs_minus1;
1056 unsigned short picture_height_in_mbs_minus1;
1057 unsigned char bit_depth_luma_minus8;
1058 unsigned char bit_depth_chroma_minus8;
1059 unsigned char num_ref_frames;
1062 unsigned int chroma_format_idc : 2;
1063 unsigned int residual_colour_transform_flag : 1;
1064 unsigned int gaps_in_frame_num_value_allowed_flag : 1;
1065 unsigned int frame_mbs_only_flag : 1;
1066 unsigned int mb_adaptive_frame_field_flag : 1;
1067 unsigned int direct_8x8_inference_flag : 1;
1068 unsigned int MinLumaBiPredSize8x8 : 1; /* see A.3.3.2 */
1069 unsigned int log2_max_frame_num_minus4 : 4;
1070 unsigned int pic_order_cnt_type : 2;
1071 unsigned int log2_max_pic_order_cnt_lsb_minus4 : 4;
1072 unsigned int delta_pic_order_always_zero_flag : 1;
1076 unsigned char num_slice_groups_minus1;
1077 unsigned char slice_group_map_type;
1078 unsigned short slice_group_change_rate_minus1;
1079 signed char pic_init_qp_minus26;
1080 signed char pic_init_qs_minus26;
1081 signed char chroma_qp_index_offset;
1082 signed char second_chroma_qp_index_offset;
1085 unsigned int entropy_coding_mode_flag : 1;
1086 unsigned int weighted_pred_flag : 1;
1087 unsigned int weighted_bipred_idc : 2;
1088 unsigned int transform_8x8_mode_flag : 1;
1089 unsigned int field_pic_flag : 1;
1090 unsigned int constrained_intra_pred_flag : 1;
1091 unsigned int pic_order_present_flag : 1;
1092 unsigned int deblocking_filter_control_present_flag : 1;
1093 unsigned int redundant_pic_cnt_present_flag : 1;
1094 unsigned int reference_pic_flag : 1; /* nal_ref_idc != 0 */
1098 unsigned short frame_num;
1099 } VAPictureParameterBufferH264;
1101 /* H.264 Inverse Quantization Matrix Buffer */
1102 typedef struct _VAIQMatrixBufferH264
1104 unsigned char ScalingList4x4[6][16];
1105 unsigned char ScalingList8x8[2][64];
1106 } VAIQMatrixBufferH264;
1109 * H.264 Slice Group Map Buffer
1110 * When VAPictureParameterBufferH264::num_slice_group_minus1 is not equal to 0,
1111 * A slice group map buffer should be sent for each picture if required. The buffer
1112 * is sent only when there is a change in the mapping values.
1113 * The slice group map buffer map "map units" to slice groups as specified in
1114 * section 8.2.2 of the H.264 spec. The buffer will contain one byte for each macroblock
1115 * in raster scan order
1118 /* H.264 Slice Parameter Buffer */
1119 typedef struct _VASliceParameterBufferH264
1121 unsigned int slice_data_size;/* number of bytes in the slice data buffer for this slice */
1122 unsigned int slice_data_offset;/* the offset to the NAL start code for this slice */
1123 unsigned int slice_data_flag; /* see VA_SLICE_DATA_FLAG_XXX defintions */
1124 unsigned short slice_data_bit_offset; /* bit offset from NAL start code to the beginning of slice data */
1125 unsigned short first_mb_in_slice;
1126 unsigned char slice_type;
1127 unsigned char direct_spatial_mv_pred_flag;
1128 unsigned char num_ref_idx_l0_active_minus1;
1129 unsigned char num_ref_idx_l1_active_minus1;
1130 unsigned char cabac_init_idc;
1131 char slice_qp_delta;
1132 unsigned char disable_deblocking_filter_idc;
1133 char slice_alpha_c0_offset_div2;
1134 char slice_beta_offset_div2;
1135 VAPictureH264 RefPicList0[32]; /* See 8.2.4.2 */
1136 VAPictureH264 RefPicList1[32]; /* See 8.2.4.2 */
1137 unsigned char luma_log2_weight_denom;
1138 unsigned char chroma_log2_weight_denom;
1139 unsigned char luma_weight_l0_flag;
1140 short luma_weight_l0[32];
1141 short luma_offset_l0[32];
1142 unsigned char chroma_weight_l0_flag;
1143 short chroma_weight_l0[32][2];
1144 short chroma_offset_l0[32][2];
1145 unsigned char luma_weight_l1_flag;
1146 short luma_weight_l1[32];
1147 short luma_offset_l1[32];
1148 unsigned char chroma_weight_l1_flag;
1149 short chroma_weight_l1[32][2];
1150 short chroma_offset_l1[32][2];
1151 } VASliceParameterBufferH264;
1153 /****************************
1154 * Common encode data structures
1155 ****************************/
1158 VAEncPictureTypeIntra = 0,
1159 VAEncPictureTypePredictive = 1,
1160 VAEncPictureTypeBidirectional = 2,
1163 /* Encode Slice Parameter Buffer */
1164 typedef struct _VAEncSliceParameterBuffer
1166 unsigned int start_row_number; /* starting MB row number for this slice */
1167 unsigned int slice_height; /* slice height measured in MB */
1170 unsigned int is_intra : 1;
1171 unsigned int disable_deblocking_filter_idc : 2;
1172 unsigned int uses_long_term_ref :1;
1173 unsigned int is_long_term_ref :1;
1177 } VAEncSliceParameterBuffer;
1179 /****************************
1180 * H.264 specific encode data structures
1181 ****************************/
1183 typedef struct _VAEncSequenceParameterBufferH264
1185 unsigned char seq_parameter_set_id;
1186 unsigned char level_idc;
1187 unsigned int intra_period;
1188 unsigned int intra_idr_period;
1189 unsigned int max_num_ref_frames;
1190 unsigned int picture_width_in_mbs;
1191 unsigned int picture_height_in_mbs;
1192 unsigned int bits_per_second;
1193 unsigned int frame_rate;
1194 unsigned int initial_qp;
1195 unsigned int min_qp;
1196 unsigned int basic_unit_size;
1197 unsigned char vui_flag;
1198 } VAEncSequenceParameterBufferH264;
1200 #define H264_LAST_PICTURE_EOSEQ 0x01 /* the last picture in the sequence */
1201 #define H264_LAST_PICTURE_EOSTREAM 0x02 /* the last picture in the stream */
1202 typedef struct _VAEncPictureParameterBufferH264
1204 VASurfaceID reference_picture;
1205 VASurfaceID reconstructed_picture;
1206 VABufferID coded_buf;
1207 unsigned short picture_width;
1208 unsigned short picture_height;
1209 unsigned char last_picture;
1210 } VAEncPictureParameterBufferH264;
1212 /****************************
1213 * H.263 specific encode data structures
1214 ****************************/
1216 typedef struct _VAEncSequenceParameterBufferH263
1218 unsigned int intra_period;
1219 unsigned int bits_per_second;
1220 unsigned int frame_rate;
1221 unsigned int initial_qp;
1222 unsigned int min_qp;
1223 } VAEncSequenceParameterBufferH263;
1225 typedef struct _VAEncPictureParameterBufferH263
1227 VASurfaceID reference_picture;
1228 VASurfaceID reconstructed_picture;
1229 VABufferID coded_buf;
1230 unsigned short picture_width;
1231 unsigned short picture_height;
1232 VAEncPictureType picture_type;
1233 } VAEncPictureParameterBufferH263;
1235 /****************************
1236 * MPEG-4 specific encode data structures
1237 ****************************/
1239 typedef struct _VAEncSequenceParameterBufferMPEG4
1241 unsigned char profile_and_level_indication;
1242 unsigned int intra_period;
1243 unsigned int video_object_layer_width;
1244 unsigned int video_object_layer_height;
1245 unsigned int vop_time_increment_resolution;
1246 unsigned int fixed_vop_rate;
1247 unsigned int fixed_vop_time_increment;
1248 unsigned int bits_per_second;
1249 unsigned int frame_rate;
1250 unsigned int initial_qp;
1251 unsigned int min_qp;
1252 } VAEncSequenceParameterBufferMPEG4;
1254 typedef struct _VAEncPictureParameterBufferMPEG4
1256 VASurfaceID reference_picture;
1257 VASurfaceID reconstructed_picture;
1258 VABufferID coded_buf;
1259 unsigned short picture_width;
1260 unsigned short picture_height;
1261 unsigned int modulo_time_base; /* number of 1s */
1262 unsigned int vop_time_increment;
1263 VAEncPictureType picture_type;
1264 } VAEncPictureParameterBufferMPEG4;
1268 /* Buffer functions */
1271 * Creates a buffer for "num_elements" elements of "size" bytes and
1272 * initalize with "data".
1273 * if "data" is null, then the contents of the buffer data store
1275 * Basically there are two ways to get buffer data to the server side. One is
1276 * to call vaCreateBuffer() with a non-null "data", which results the data being
1277 * copied to the data store on the server side. A different method that
1278 * eliminates this copy is to pass null as "data" when calling vaCreateBuffer(),
1279 * and then use vaMapBuffer() to map the data store from the server side to the
1280 * client address space for access.
1281 * Note: image buffers are created by the library, not the client. Please see
1282 * vaCreateImage on how image buffers are managed.
1284 VAStatus vaCreateBuffer (
1286 VAContextID context,
1287 VABufferType type, /* in */
1288 unsigned int size, /* in */
1289 unsigned int num_elements, /* in */
1290 void *data, /* in */
1291 VABufferID *buf_id /* out */
1295 * Convey to the server how many valid elements are in the buffer.
1296 * e.g. if multiple slice parameters are being held in a single buffer,
1297 * this will communicate to the server the number of slice parameters
1298 * that are valid in the buffer.
1300 VAStatus vaBufferSetNumElements (
1302 VABufferID buf_id, /* in */
1303 unsigned int num_elements /* in */
1308 * device independent data structure for codedbuffer
1312 * FICTURE_AVE_QP(bit7-0): The average Qp value used during this frame
1313 * LARGE_SLICE(bit8):At least one slice in the current frame was large
1314 * enough for the encoder to attempt to limit its size.
1315 * SLICE_OVERFLOW(bit9): At least one slice in the current frame has
1316 * exceeded the maximum slice size specified.
1317 * BITRATE_OVERFLOW(bit10): The peak bitrate was exceeded for this frame.
1318 * AIR_MB_OVER_THRESHOLD: the number of MBs adapted to Intra MB
1320 #define VA_CODED_BUF_STATUS_PICTURE_AVE_QP_MASK 0xff
1321 #define VA_CODED_BUF_STATUS_LARGE_SLICE_MASK 0x100
1322 #define VA_CODED_BUF_STATUS_SLICE_OVERFLOW_MASK 0x200
1323 #define VA_CODED_BUF_STATUS_BITRATE_OVERFLOW 0x400
1324 #define VA_CODED_BUF_STATUS_AIR_MB_OVER_THRESHOLD 0xff0000
1327 * device independent data structure for codedbuffer
1329 typedef struct _VACodedBufferSegment {
1330 unsigned int size;/* size of the data buffer in the coded buffer segment, in bytes */
1331 unsigned int bit_offset; /* bit offset into the data buffer where valid bitstream data begins */
1332 unsigned int status; /* status set by the driver on the coded buffer*/
1333 unsigned int reserved; /* for future use */
1334 void *buf; /* pointer to the beginning of the data buffer in the coded buffer segment */
1335 void *next; /* pointer to the next VACodedBufferSegment */
1336 } VACodedBufferSegment;
1339 * Map data store of the buffer into the client's address space
1340 * vaCreateBuffer() needs to be called with "data" set to NULL before
1341 * calling vaMapBuffer()
1343 * if buffer type is VAEncCodedBufferType, pbuf points to link-list of
1344 * VACodedBufferSegment, and the list is terminated if "next" is NULL
1346 VAStatus vaMapBuffer (
1348 VABufferID buf_id, /* in */
1349 void **pbuf /* out */
1353 * After client making changes to a mapped data store, it needs to
1354 * "Unmap" it to let the server know that the data is ready to be
1355 * consumed by the server
1357 VAStatus vaUnmapBuffer (
1359 VABufferID buf_id /* in */
1363 * After this call, the buffer is deleted and this buffer_id is no longer valid
1364 * Only call this if the buffer is not going to be passed to vaRenderBuffer
1366 VAStatus vaDestroyBuffer (
1368 VABufferID buffer_id
1372 Render (Decode) Pictures
1374 A picture represents either a frame or a field.
1376 The Begin/Render/End sequence sends the decode buffers to the server
1380 * Get ready to decode a picture to a target surface
1382 VAStatus vaBeginPicture (
1384 VAContextID context,
1385 VASurfaceID render_target
1389 * Send decode buffers to the server.
1390 * Buffers are automatically destroyed afterwards
1392 VAStatus vaRenderPicture (
1394 VAContextID context,
1395 VABufferID *buffers,
1400 * Make the end of rendering for a picture.
1401 * The server should start processing all pending operations for this
1402 * surface. This call is non-blocking. The client can start another
1403 * Begin/Render/End sequence on a different render target.
1405 VAStatus vaEndPicture (
1417 * This function blocks until all pending operations on the render target
1418 * have been completed. Upon return it is safe to use the render target for a
1419 * different picture.
1421 VAStatus vaSyncSurface (
1423 VASurfaceID render_target
1428 VASurfaceRendering = 1, /* Rendering in progress */
1429 VASurfaceDisplaying = 2, /* Displaying in progress (not safe to render into it) */
1430 /* this status is useful if surface is used as the source */
1432 VASurfaceReady = 4, /* not being rendered or displayed */
1433 VASurfaceSkipped = 8 /* Indicate a skipped frame during encode */
1437 * Find out any pending ops on the render target
1439 VAStatus vaQuerySurfaceStatus (
1441 VASurfaceID render_target,
1442 VASurfaceStatus *status /* out */
1446 * Client calls vaQuerySurfaceError with VA_STATUS_ERROR_DECODING_ERROR, server side returns
1447 * an array of structure VASurfaceDecodeMBErrors, and the array is terminated by setting status=-1
1449 typedef struct _VASurfaceDecodeMBErrors
1451 int status; /* 1 if hardware has returned detailed info below, -1 means this record is invalid */
1452 unsigned int start_mb; /* start mb address with errors */
1453 unsigned int end_mb; /* end mb address with errors */
1454 } VASurfaceDecodeMBErrors;
1457 * After the application gets VA_STATUS_ERROR_DECODING_ERROR after calling vaSyncSurface(),
1458 * it can call vaQuerySurfaceError to find out further details on the particular error.
1459 * VA_STATUS_ERROR_DECODING_ERROR should be passed in as "error_status",
1460 * upon the return, error_info will point to an array of _VASurfaceDecodeMBErrors structure,
1461 * which is allocated and filled by libVA with detailed information on the missing or error macroblocks.
1462 * The array is terminated if "status==-1" is detected.
1464 VAStatus vaQuerySurfaceError(
1466 VASurfaceID surface,
1467 VAStatus error_status,
1472 * Images and Subpictures
1473 * VAImage is used to either get the surface data to client memory, or
1474 * to copy image data in client memory to a surface.
1475 * Both images, subpictures and surfaces follow the same 2D coordinate system where origin
1476 * is at the upper left corner with positive X to the right and positive Y down
1478 #define VA_FOURCC(ch0, ch1, ch2, ch3) \
1479 ((unsigned long)(unsigned char) (ch0) | ((unsigned long)(unsigned char) (ch1) << 8) | \
1480 ((unsigned long)(unsigned char) (ch2) << 16) | ((unsigned long)(unsigned char) (ch3) << 24 ))
1482 /* a few common FourCCs */
1483 #define VA_FOURCC_NV12 0x3231564E
1484 #define VA_FOURCC_AI44 0x34344149
1485 #define VA_FOURCC_RGBA 0x41424752
1486 #define VA_FOURCC_UYVY 0x59565955
1487 #define VA_FOURCC_YUY2 0x32595559
1488 #define VA_FOURCC_AYUV 0x56555941
1489 #define VA_FOURCC_NV11 0x3131564e
1490 #define VA_FOURCC_YV12 0x32315659
1491 #define VA_FOURCC_P208 0x38303250
1492 #define VA_FOURCC_IYUV 0x56555949
1495 #define VA_LSB_FIRST 1
1496 #define VA_MSB_FIRST 2
1498 typedef struct _VAImageFormat
1500 unsigned int fourcc;
1501 unsigned int byte_order; /* VA_LSB_FIRST, VA_MSB_FIRST */
1502 unsigned int bits_per_pixel;
1503 /* for RGB formats */
1504 unsigned int depth; /* significant bits per pixel */
1505 unsigned int red_mask;
1506 unsigned int green_mask;
1507 unsigned int blue_mask;
1508 unsigned int alpha_mask;
1511 typedef VAGenericID VAImageID;
1513 typedef struct _VAImage
1515 VAImageID image_id; /* uniquely identify this image */
1516 VAImageFormat format;
1517 VABufferID buf; /* image data buffer */
1519 * Image data will be stored in a buffer of type VAImageBufferType to facilitate
1520 * data store on the server side for optimal performance. The buffer will be
1521 * created by the CreateImage function, and proper storage allocated based on the image
1522 * size and format. This buffer is managed by the library implementation, and
1523 * accessed by the client through the buffer Map/Unmap functions.
1525 unsigned short width;
1526 unsigned short height;
1527 unsigned int data_size;
1528 unsigned int num_planes; /* can not be greater than 3 */
1530 * An array indicating the scanline pitch in bytes for each plane.
1531 * Each plane may have a different pitch. Maximum 3 planes for planar formats
1533 unsigned int pitches[3];
1535 * An array indicating the byte offset from the beginning of the image data
1536 * to the start of each plane.
1538 unsigned int offsets[3];
1540 /* The following fields are only needed for paletted formats */
1541 int num_palette_entries; /* set to zero for non-palette images */
1543 * Each component is one byte and entry_bytes indicates the number of components in
1544 * each entry (eg. 3 for YUV palette entries). set to zero for non-palette images
1548 * An array of ascii characters describing the order of the components within the bytes.
1549 * Only entry_bytes characters of the string are used.
1551 char component_order[4];
1554 /* Get maximum number of image formats supported by the implementation */
1555 int vaMaxNumImageFormats (
1560 * Query supported image formats
1561 * The caller must provide a "format_list" array that can hold at
1562 * least vaMaxNumImageFormats() entries. The actual number of formats
1563 * returned in "format_list" is returned in "num_formats".
1565 VAStatus vaQueryImageFormats (
1567 VAImageFormat *format_list, /* out */
1568 int *num_formats /* out */
1572 * Create a VAImage structure
1573 * The width and height fields returned in the VAImage structure may get
1574 * enlarged for some YUV formats. Upon return from this function,
1575 * image->buf has been created and proper storage allocated by the library.
1576 * The client can access the image through the Map/Unmap calls.
1578 VAStatus vaCreateImage (
1580 VAImageFormat *format,
1583 VAImage *image /* out */
1587 * Should call DestroyImage before destroying the surface it is bound to
1589 VAStatus vaDestroyImage (
1594 VAStatus vaSetImagePalette (
1598 * pointer to an array holding the palette data. The size of the array is
1599 * num_palette_entries * entry_bytes in size. The order of the components
1600 * in the palette is described by the component_order in VAImage struct
1602 unsigned char *palette
1606 * Retrive surface data into a VAImage
1607 * Image must be in a format supported by the implementation
1609 VAStatus vaGetImage (
1611 VASurfaceID surface,
1612 int x, /* coordinates of the upper left source pixel */
1614 unsigned int width, /* width and height of the region */
1615 unsigned int height,
1620 * Copy data from a VAImage to a surface
1621 * Image must be in a format supported by the implementation
1622 * Returns a VA_STATUS_ERROR_SURFACE_BUSY if the surface
1623 * shouldn't be rendered into when this is called
1625 VAStatus vaPutImage (
1627 VASurfaceID surface,
1631 unsigned int src_width,
1632 unsigned int src_height,
1635 unsigned int dest_width,
1636 unsigned int dest_height
1640 * Derive an VAImage from an existing surface.
1641 * This interface will derive a VAImage and corresponding image buffer from
1642 * an existing VA Surface. The image buffer can then be mapped/unmapped for
1643 * direct CPU access. This operation is only possible on implementations with
1644 * direct rendering capabilities and internal surface formats that can be
1645 * represented with a VAImage. When the operation is not possible this interface
1646 * will return VA_STATUS_ERROR_OPERATION_FAILED. Clients should then fall back
1647 * to using vaCreateImage + vaPutImage to accomplish the same task in an
1650 * Implementations should only return success when the resulting image buffer
1651 * would be useable with vaMap/Unmap.
1653 * When directly accessing a surface special care must be taken to insure
1654 * proper synchronization with the graphics hardware. Clients should call
1655 * vaQuerySurfaceStatus to insure that a surface is not the target of concurrent
1656 * rendering or currently being displayed by an overlay.
1658 * Additionally nothing about the contents of a surface should be assumed
1659 * following a vaPutSurface. Implementations are free to modify the surface for
1660 * scaling or subpicture blending within a call to vaPutImage.
1662 * Calls to vaPutImage or vaGetImage using the same surface from which the image
1663 * has been derived will return VA_STATUS_ERROR_SURFACE_BUSY. vaPutImage or
1664 * vaGetImage with other surfaces is supported.
1666 * An image created with vaDeriveImage should be freed with vaDestroyImage. The
1667 * image and image buffer structures will be destroyed; however, the underlying
1668 * surface will remain unchanged until freed with vaDestroySurfaces.
1670 VAStatus vaDeriveImage (
1672 VASurfaceID surface,
1673 VAImage *image /* out */
1678 * Subpicture is a special type of image that can be blended
1679 * with a surface during vaPutSurface(). Subpicture can be used to render
1680 * DVD sub-titles or closed captioning text etc.
1683 typedef VAGenericID VASubpictureID;
1685 /* Get maximum number of subpicture formats supported by the implementation */
1686 int vaMaxNumSubpictureFormats (
1690 /* flags for subpictures */
1691 #define VA_SUBPICTURE_CHROMA_KEYING 0x0001
1692 #define VA_SUBPICTURE_GLOBAL_ALPHA 0x0002
1694 * Query supported subpicture formats
1695 * The caller must provide a "format_list" array that can hold at
1696 * least vaMaxNumSubpictureFormats() entries. The flags arrary holds the flag
1697 * for each format to indicate additional capabilities for that format. The actual
1698 * number of formats returned in "format_list" is returned in "num_formats".
1699 * flags: returned value to indicate addtional capabilities
1700 * VA_SUBPICTURE_CHROMA_KEYING - supports chroma-keying
1701 * VA_SUBPICTURE_GLOBAL_ALPHA - supports global alpha
1703 VAStatus vaQuerySubpictureFormats (
1705 VAImageFormat *format_list, /* out */
1706 unsigned int *flags, /* out */
1707 unsigned int *num_formats /* out */
1711 * Subpictures are created with an image associated.
1713 VAStatus vaCreateSubpicture (
1716 VASubpictureID *subpicture /* out */
1720 * Destroy the subpicture before destroying the image it is assocated to
1722 VAStatus vaDestroySubpicture (
1724 VASubpictureID subpicture
1728 * Bind an image to the subpicture. This image will now be associated with
1729 * the subpicture instead of the one at creation.
1731 VAStatus vaSetSubpictureImage (
1733 VASubpictureID subpicture,
1738 * If chromakey is enabled, then the area where the source value falls within
1739 * the chromakey [min, max] range is transparent
1740 * The chromakey component format is the following:
1741 * For RGB: [0:7] Red [8:15] Blue [16:23] Green
1742 * For YUV: [0:7] V [8:15] U [16:23] Y
1743 * The chromakey mask can be used to mask out certain components for chromakey
1746 VAStatus vaSetSubpictureChromakey (
1748 VASubpictureID subpicture,
1749 unsigned int chromakey_min,
1750 unsigned int chromakey_max,
1751 unsigned int chromakey_mask
1755 * Global alpha value is between 0 and 1. A value of 1 means fully opaque and
1756 * a value of 0 means fully transparent. If per-pixel alpha is also specified then
1757 * the overall alpha is per-pixel alpha multiplied by the global alpha
1759 VAStatus vaSetSubpictureGlobalAlpha (
1761 VASubpictureID subpicture,
1766 * vaAssociateSubpicture associates the subpicture with target_surfaces.
1767 * It defines the region mapping between the subpicture and the target
1768 * surfaces through source and destination rectangles (with the same width and height).
1769 * Both will be displayed at the next call to vaPutSurface. Additional
1770 * associations before the call to vaPutSurface simply overrides the association.
1772 VAStatus vaAssociateSubpicture (
1774 VASubpictureID subpicture,
1775 VASurfaceID *target_surfaces,
1777 short src_x, /* upper left offset in subpicture */
1779 unsigned short src_width,
1780 unsigned short src_height,
1781 short dest_x, /* upper left offset in surface */
1783 unsigned short dest_width,
1784 unsigned short dest_height,
1786 * whether to enable chroma-keying or global-alpha
1787 * see VA_SUBPICTURE_XXX values
1793 * vaDeassociateSubpicture removes the association of the subpicture with target_surfaces.
1795 VAStatus vaDeassociateSubpicture (
1797 VASubpictureID subpicture,
1798 VASurfaceID *target_surfaces,
1802 typedef struct _VARectangle
1806 unsigned short width;
1807 unsigned short height;
1811 * Display attributes
1812 * Display attributes are used to control things such as contrast, hue, saturation,
1813 * brightness etc. in the rendering process. The application can query what
1814 * attributes are supported by the driver, and then set the appropriate attributes
1815 * before calling vaPutSurface()
1817 /* PowerVR IEP Lite attributes */
1820 VADISPLAYATTRIB_BLE_OFF = 0x00,
1821 VADISPLAYATTRIB_BLE_LOW,
1822 VADISPLAYATTRIB_BLE_MEDIUM,
1823 VADISPLAYATTRIB_BLE_HIGH,
1824 VADISPLAYATTRIB_BLE_NONE,
1825 } VADisplayAttribBLEMode;
1827 /* attribute value for VADisplayAttribRotation */
1828 #define VA_ROTATION_NONE 0x00000000
1829 #define VA_ROTATION_90 0x00000001
1830 #define VA_ROTATION_180 0x00000002
1831 #define VA_ROTATION_270 0x00000004
1833 /* attribute value for VADisplayAttribOutOfLoopDeblock */
1834 #define VA_OOL_DEBLOCKING_FALSE 0x00000000
1835 #define VA_OOL_DEBLOCKING_TRUE 0x00000001
1838 /* Currently defined display attribute types */
1841 VADisplayAttribBrightness = 0,
1842 VADisplayAttribContrast = 1,
1843 VADisplayAttribHue = 2,
1844 VADisplayAttribSaturation = 3,
1845 /* client can specifiy a background color for the target window
1846 * the new feature of video conference,
1847 * the uncovered area of the surface is filled by this color
1848 * also it will blend with the decoded video color*/
1849 VADisplayAttribBackgroundColor = 4,
1851 * this is a gettable only attribute. For some implementations that use the
1852 * hardware overlay, after PutSurface is called, the surface can not be
1853 * re-used until after the subsequent PutSurface call. If this is the case
1854 * then the value for this attribute will be set to 1 so that the client
1855 * will not attempt to re-use the surface right after returning from a call
1858 * Don't use it, use flag VASurfaceDisplaying of vaQuerySurfaceStatus since
1859 * driver may use overlay or GPU alternatively
1861 VADisplayAttribDirectSurface = 5,
1862 VADisplayAttribRotation = 6,
1863 VADisplayAttribOutofLoopDeblock = 7,
1865 /* PowerVR IEP Lite specific attributes */
1866 VADisplayAttribBLEBlackMode = 8,
1867 VADisplayAttribBLEWhiteMode = 9,
1868 VADisplayAttribBlueStretch = 10,
1869 VADisplayAttribSkinColorCorrection = 11,
1871 * For type VADisplayAttribCSCMatrix, "value" field is a pointer to the color
1872 * conversion matrix. Each element in the matrix is float-point
1874 VADisplayAttribCSCMatrix = 12,
1875 /* specify the constant color used to blend with video surface
1876 * Cd = Cv*Cc*Ac + Cb *(1 - Ac) C means the constant RGB
1877 * d: the final color to overwrite into the frame buffer
1878 * v: decoded video after color conversion,
1879 * c: video color specified by VADisplayAttribBlendColor
1880 * b: background color of the drawable
1882 VADisplayAttribBlendColor = 13,
1883 } VADisplayAttribType;
1885 /* flags for VADisplayAttribute */
1886 #define VA_DISPLAY_ATTRIB_NOT_SUPPORTED 0x0000
1887 #define VA_DISPLAY_ATTRIB_GETTABLE 0x0001
1888 #define VA_DISPLAY_ATTRIB_SETTABLE 0x0002
1890 typedef struct _VADisplayAttribute
1892 VADisplayAttribType type;
1895 int value; /* used by the set/get attribute functions */
1896 /* flags can be VA_DISPLAY_ATTRIB_GETTABLE or VA_DISPLAY_ATTRIB_SETTABLE or OR'd together */
1898 } VADisplayAttribute;
1900 /* Get maximum number of display attributs supported by the implementation */
1901 int vaMaxNumDisplayAttributes (
1906 * Query display attributes
1907 * The caller must provide a "attr_list" array that can hold at
1908 * least vaMaxNumDisplayAttributes() entries. The actual number of attributes
1909 * returned in "attr_list" is returned in "num_attributes".
1911 VAStatus vaQueryDisplayAttributes (
1913 VADisplayAttribute *attr_list, /* out */
1914 int *num_attributes /* out */
1918 * Get display attributes
1919 * This function returns the current attribute values in "attr_list".
1920 * Only attributes returned with VA_DISPLAY_ATTRIB_GETTABLE set in the "flags" field
1921 * from vaQueryDisplayAttributes() can have their values retrieved.
1923 VAStatus vaGetDisplayAttributes (
1925 VADisplayAttribute *attr_list, /* in/out */
1930 * Set display attributes
1931 * Only attributes returned with VA_DISPLAY_ATTRIB_SETTABLE set in the "flags" field
1932 * from vaQueryDisplayAttributes() can be set. If the attribute is not settable or
1933 * the value is out of range, the function returns VA_STATUS_ERROR_ATTR_NOT_SUPPORTED
1935 VAStatus vaSetDisplayAttributes (
1937 VADisplayAttribute *attr_list,