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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
241 * Currently defined entrypoints
247 VAEntrypointIDCT = 3,
248 VAEntrypointMoComp = 4,
249 VAEntrypointDeblocking = 5,
250 VAEntrypointEncSlice = 6, /* slice level encode */
251 VAEntrypointEncPicture = 7 /* pictuer encode, JPEG, etc */
254 /* Currently defined configuration attribute types */
257 VAConfigAttribRTFormat = 0,
258 VAConfigAttribSpatialResidual = 1,
259 VAConfigAttribSpatialClipping = 2,
260 VAConfigAttribIntraResidual = 3,
261 VAConfigAttribEncryption = 4,
262 VAConfigAttribRateControl = 5
263 } VAConfigAttribType;
266 * Configuration attributes
267 * If there is more than one value for an attribute, a default
268 * value will be assigned to the attribute if the client does not
269 * specify the attribute when creating a configuration
271 typedef struct _VAConfigAttrib {
272 VAConfigAttribType type;
273 unsigned int value; /* OR'd flags (bits) for this attribute */
276 /* attribute value for VAConfigAttribRTFormat */
277 #define VA_RT_FORMAT_YUV420 0x00000001
278 #define VA_RT_FORMAT_YUV422 0x00000002
279 #define VA_RT_FORMAT_YUV444 0x00000004
280 #define VA_RT_FORMAT_PROTECTED 0x80000000
282 /* attribute value for VAConfigAttribRateControl */
283 #define VA_RC_NONE 0x00000001
284 #define VA_RC_CBR 0x00000002
285 #define VA_RC_VBR 0x00000004
286 #define VA_RC_VCM 0x00000008 /* video conference mode */
289 * if an attribute is not applicable for a given
290 * profile/entrypoint pair, then set the value to the following
292 #define VA_ATTRIB_NOT_SUPPORTED 0x80000000
294 /* Get maximum number of profiles supported by the implementation */
295 int vaMaxNumProfiles (
299 /* Get maximum number of entrypoints supported by the implementation */
300 int vaMaxNumEntrypoints (
304 /* Get maximum number of attributs supported by the implementation */
305 int vaMaxNumConfigAttributes (
310 * Query supported profiles
311 * The caller must provide a "profile_list" array that can hold at
312 * least vaMaxNumProfile() entries. The actual number of profiles
313 * returned in "profile_list" is returned in "num_profile".
315 VAStatus vaQueryConfigProfiles (
317 VAProfile *profile_list, /* out */
318 int *num_profiles /* out */
322 * Query supported entrypoints for a given profile
323 * The caller must provide an "entrypoint_list" array that can hold at
324 * least vaMaxNumEntrypoints() entries. The actual number of entrypoints
325 * returned in "entrypoint_list" is returned in "num_entrypoints".
327 VAStatus vaQueryConfigEntrypoints (
330 VAEntrypoint *entrypoint_list, /* out */
331 int *num_entrypoints /* out */
335 * Get attributes for a given profile/entrypoint pair
336 * The caller must provide an "attrib_list" with all attributes to be
337 * retrieved. Upon return, the attributes in "attrib_list" have been
338 * updated with their value. Unknown attributes or attributes that are
339 * not supported for the given profile/entrypoint pair will have their
340 * value set to VA_ATTRIB_NOT_SUPPORTED
342 VAStatus vaGetConfigAttributes (
345 VAEntrypoint entrypoint,
346 VAConfigAttrib *attrib_list, /* in/out */
350 /* Generic ID type, can be re-typed for specific implementation */
351 typedef unsigned int VAGenericID;
353 typedef VAGenericID VAConfigID;
356 * Create a configuration for the decode pipeline
357 * it passes in the attribute list that specifies the attributes it cares
358 * about, with the rest taking default values.
360 VAStatus vaCreateConfig (
363 VAEntrypoint entrypoint,
364 VAConfigAttrib *attrib_list,
366 VAConfigID *config_id /* out */
370 * Free resources associdated with a given config
372 VAStatus vaDestroyConfig (
378 * Query all attributes for a given configuration
379 * The profile of the configuration is returned in "profile"
380 * The entrypoint of the configuration is returned in "entrypoint"
381 * The caller must provide an "attrib_list" array that can hold at least
382 * vaMaxNumConfigAttributes() entries. The actual number of attributes
383 * returned in "attrib_list" is returned in "num_attribs"
385 VAStatus vaQueryConfigAttributes (
387 VAConfigID config_id,
388 VAProfile *profile, /* out */
389 VAEntrypoint *entrypoint, /* out */
390 VAConfigAttrib *attrib_list,/* out */
391 int *num_attribs /* out */
396 * Contexts and Surfaces
398 * Context represents a "virtual" video decode pipeline. Surfaces are render
399 * targets for a given context. The data in the surfaces are not accessible
400 * to the client and the internal data format of the surface is implementatin
403 * Surfaces will be bound to a context when the context is created. Once
404 * a surface is bound to a given context, it can not be used to create
405 * another context. The association is removed when the context is destroyed
407 * Both contexts and surfaces are identified by unique IDs and its
408 * implementation specific internals are kept opaque to the clients
411 typedef VAGenericID VAContextID;
413 typedef VAGenericID VASurfaceID;
415 #define VA_INVALID_ID 0xffffffff
416 #define VA_INVALID_SURFACE VA_INVALID_ID
419 * vaCreateSurfaces - Create an array of surfaces used for decode and display
421 * width: surface width
422 * height: surface height
423 * format: VA_RT_FORMAT_YUV420, VA_RT_FORMAT_YUV422 or VA_RT_FORMAT_YUV444
424 * num_surfaces: number of surfaces to be created
425 * surfaces: array of surfaces created upon return
427 VAStatus vaCreateSurfaces (
433 VASurfaceID *surfaces /* out */
438 * vaDestroySurfaces - Destroy resources associated with surfaces.
439 * Surfaces can only be destroyed after the context associated has been
442 * surfaces: array of surfaces to destroy
443 * num_surfaces: number of surfaces in the array to be destroyed.
445 VAStatus vaDestroySurfaces (
447 VASurfaceID *surfaces,
451 #define VA_PROGRESSIVE 0x1
453 * vaCreateContext - Create a context
455 * config_id: configuration for the context
456 * picture_width: coded picture width
457 * picture_height: coded picture height
458 * flag: any combination of the following:
459 * VA_PROGRESSIVE (only progressive frame pictures in the sequence when set)
460 * render_targets: render targets (surfaces) tied to the context
461 * num_render_targets: number of render targets in the above array
462 * context: created context id upon return
464 VAStatus vaCreateContext (
466 VAConfigID config_id,
470 VASurfaceID *render_targets,
471 int num_render_targets,
472 VAContextID *context /* out */
476 * vaDestroyContext - Destroy a context
478 * context: context to be destroyed
480 VAStatus vaDestroyContext (
487 * Buffers are used to pass various types of data from the
488 * client to the server. The server maintains a data store
489 * for each buffer created, and the client idenfies a buffer
490 * through a unique buffer id assigned by the server.
493 typedef VAGenericID VABufferID;
497 VAPictureParameterBufferType = 0,
498 VAIQMatrixBufferType = 1,
499 VABitPlaneBufferType = 2,
500 VASliceGroupMapBufferType = 3,
501 VASliceParameterBufferType = 4,
502 VASliceDataBufferType = 5,
503 VAMacroblockParameterBufferType = 6,
504 VAResidualDataBufferType = 7,
505 VADeblockingParameterBufferType = 8,
506 VAImageBufferType = 9,
507 VAProtectedSliceDataBufferType = 10,
508 VAQMatrixBufferType = 11,
509 /* Following are encode buffer types */
510 VAEncCodedBufferType = 21,
511 VAEncSequenceParameterBufferType = 22,
512 VAEncPictureParameterBufferType = 23,
513 VAEncSliceParameterBufferType = 24,
514 VAEncH264VUIBufferType = 25,
515 VAEncH264SEIBufferType = 26,
516 VAEncMiscParameterBufferType = 27,
517 VABufferTypeMax = 0xff
522 VAEncMiscParameterTypeFrameRate = 0,
523 VAEncMiscParameterTypeRateControl = 1,
524 VAEncMiscParameterTypeMaxSliceSize = 2,
525 VAEncMiscParameterTypeAIR = 3,
526 } VAEncMiscParameterType;
529 * For application, e.g. set a new bitrate
531 * VAEncMiscParameterBuffer *misc_param;
532 * VAEncMiscParameterRateControl *misc_rate_ctrl;
534 * vaCreateBuffer(dpy, context, VAEncMiscParameterBufferType,
535 * sizeof(VAEncMiscParameterBuffer) + sizeof(VAEncMiscParameterRateControl),
538 * vaMapBuffer(dpy,buf_id,(void **)&misc_param);
539 * misc_param->type = VAEncMiscParameterTypeRateControl;
540 * misc_rate_ctrl= (VAEncMiscParameterRateControl *)misc_param->data;
541 * misc_rate_ctrl->bits_per_second = 6400000;
542 * vaUnmapBuffer(dpy, buf_id);
543 * vaRenderPicture(dpy, context, &buf_id, 1);
545 typedef struct _VAEncMiscParameterBuffer
547 VAEncMiscParameterType type;
548 unsigned int data[0];
549 } VAEncMiscParameterBuffer;
551 typedef struct _VAEncMiscParameterRateControl
553 unsigned int bits_per_second; /* this is the maximum bit-rate to be constrained by the rate control implementation */
554 unsigned int target_percentage; /* this is the bit-rate the rate control is targeting, as a percentage of the maximum bit-rate */
555 /* for example if target_percentage is 95 then the rate control will target a bit-rate that is */
556 /* 95% of the maximum bit-rate */
557 unsigned int window_size; /* windows size in milliseconds. For example if this is set to 500, then the rate control will guarantee the */
558 /* target bit-rate over a 500 ms window */
559 unsigned int initial_qp; /* initial QP at I frames */
561 } VAEncMiscParameterRateControl;
563 typedef struct _VAEncMiscParameterFrameRate
565 unsigned int framerate;
566 } VAEncMiscParameterFrameRate;
569 * Allow a maximum slice size to be specified (in bits).
570 * The encoder will attempt to make sure that individual slices do not exceed this size
571 * Or to signal applicate if the slice size exceed this size, see "status" of VACodedBufferSegment
573 typedef struct _VAEncMiscParameterMaxSliceSize
575 unsigned int max_slice_size;
576 } VAEncMiscParameterMaxSliceSize;
578 typedef struct _VAEncMiscParameterAIR
580 unsigned int air_num_mbs;
581 unsigned int air_threshold;
582 unsigned int air_auto; /* if set to 1 then hardware auto-tune the AIR threshold */
583 } VAEncMiscParameterAIR;
587 * There will be cases where the bitstream buffer will not have enough room to hold
588 * the data for the entire slice, and the following flags will be used in the slice
589 * parameter to signal to the server for the possible cases.
590 * If a slice parameter buffer and slice data buffer pair is sent to the server with
591 * the slice data partially in the slice data buffer (BEGIN and MIDDLE cases below),
592 * then a slice parameter and data buffer needs to be sent again to complete this slice.
594 #define VA_SLICE_DATA_FLAG_ALL 0x00 /* whole slice is in the buffer */
595 #define VA_SLICE_DATA_FLAG_BEGIN 0x01 /* The beginning of the slice is in the buffer but the end if not */
596 #define VA_SLICE_DATA_FLAG_MIDDLE 0x02 /* Neither beginning nor end of the slice is in the buffer */
597 #define VA_SLICE_DATA_FLAG_END 0x04 /* end of the slice is in the buffer */
599 /* Codec-independent Slice Parameter Buffer base */
600 typedef struct _VASliceParameterBufferBase
602 unsigned int slice_data_size; /* number of bytes in the slice data buffer for this slice */
603 unsigned int slice_data_offset; /* the offset to the first byte of slice data */
604 unsigned int slice_data_flag; /* see VA_SLICE_DATA_FLAG_XXX definitions */
605 } VASliceParameterBufferBase;
608 /****************************
609 * JEPG data structure
610 ***************************/
611 typedef struct _VAQMatrixBufferJPEG
613 int load_lum_quantiser_matrix;
614 int load_chroma_quantiser_matrix;
615 unsigned char lum_quantiser_matrix[64];
616 unsigned char chroma_quantiser_matrix[64];
617 } VAQMatrixBufferJPEG;
619 typedef struct _VAEncPictureParameterBufferJPEG
621 VASurfaceID reconstructed_picture;
622 unsigned short picture_width;
623 unsigned short picture_height;
624 VABufferID coded_buf;
625 } VAEncPictureParameterBufferJPEG;
628 /****************************
629 * MPEG-2 data structures
630 ****************************/
632 /* MPEG-2 Picture Parameter Buffer */
634 * For each frame or field, and before any slice data, a single
635 * picture parameter buffer must be send.
637 typedef struct _VAPictureParameterBufferMPEG2
639 unsigned short horizontal_size;
640 unsigned short vertical_size;
641 VASurfaceID forward_reference_picture;
642 VASurfaceID backward_reference_picture;
643 /* meanings of the following fields are the same as in the standard */
644 int picture_coding_type;
645 int f_code; /* pack all four fcode into this */
648 unsigned int intra_dc_precision : 2;
649 unsigned int picture_structure : 2;
650 unsigned int top_field_first : 1;
651 unsigned int frame_pred_frame_dct : 1;
652 unsigned int concealment_motion_vectors : 1;
653 unsigned int q_scale_type : 1;
654 unsigned int intra_vlc_format : 1;
655 unsigned int alternate_scan : 1;
656 unsigned int repeat_first_field : 1;
657 unsigned int progressive_frame : 1;
658 unsigned int is_first_field : 1; /* indicate whether the current field
659 * is the first field for field picture
663 } picture_coding_extension;
664 } VAPictureParameterBufferMPEG2;
666 /* MPEG-2 Inverse Quantization Matrix Buffer */
667 typedef struct _VAIQMatrixBufferMPEG2
669 int load_intra_quantiser_matrix;
670 int load_non_intra_quantiser_matrix;
671 int load_chroma_intra_quantiser_matrix;
672 int load_chroma_non_intra_quantiser_matrix;
673 unsigned char intra_quantiser_matrix[64];
674 unsigned char non_intra_quantiser_matrix[64];
675 unsigned char chroma_intra_quantiser_matrix[64];
676 unsigned char chroma_non_intra_quantiser_matrix[64];
677 } VAIQMatrixBufferMPEG2;
679 /* MPEG-2 Slice Parameter Buffer */
680 typedef struct _VASliceParameterBufferMPEG2
682 unsigned int slice_data_size;/* number of bytes in the slice data buffer for this slice */
683 unsigned int slice_data_offset;/* the offset to the first byte of slice data */
684 unsigned int slice_data_flag; /* see VA_SLICE_DATA_FLAG_XXX defintions */
685 unsigned int macroblock_offset;/* the offset to the first bit of MB from the first byte of slice data */
686 unsigned int slice_horizontal_position;
687 unsigned int slice_vertical_position;
688 int quantiser_scale_code;
689 int intra_slice_flag;
690 } VASliceParameterBufferMPEG2;
692 /* MPEG-2 Macroblock Parameter Buffer */
693 typedef struct _VAMacroblockParameterBufferMPEG2
695 unsigned short macroblock_address;
697 * macroblock_address (in raster scan order)
699 * bottom-right: picture-height-in-mb*picture-width-in-mb - 1
701 unsigned char macroblock_type; /* see definition below */
704 unsigned int frame_motion_type : 2;
705 unsigned int field_motion_type : 2;
706 unsigned int dct_type : 1;
710 unsigned char motion_vertical_field_select;
712 * motion_vertical_field_select:
713 * see section 6.3.17.2 in the spec
714 * only the lower 4 bits are used
715 * bit 0: first vector forward
716 * bit 1: first vector backward
717 * bit 2: second vector forward
718 * bit 3: second vector backward
720 short PMV[2][2][2]; /* see Table 7-7 in the spec */
721 unsigned short coded_block_pattern;
723 * The bitplanes for coded_block_pattern are described
724 * in Figure 6.10-12 in the spec
727 /* Number of skipped macroblocks after this macroblock */
728 unsigned short num_skipped_macroblocks;
729 } VAMacroblockParameterBufferMPEG2;
732 * OR'd flags for macroblock_type (section 6.3.17.1 in the spec)
734 #define VA_MB_TYPE_MOTION_FORWARD 0x02
735 #define VA_MB_TYPE_MOTION_BACKWARD 0x04
736 #define VA_MB_TYPE_MOTION_PATTERN 0x08
737 #define VA_MB_TYPE_MOTION_INTRA 0x10
740 * MPEG-2 Residual Data Buffer
741 * For each macroblock, there wil be 64 shorts (16-bit) in the
742 * residual data buffer
745 /****************************
746 * MPEG-4 Part 2 data structures
747 ****************************/
749 /* MPEG-4 Picture Parameter Buffer */
751 * For each frame or field, and before any slice data, a single
752 * picture parameter buffer must be send.
754 typedef struct _VAPictureParameterBufferMPEG4
756 unsigned short vop_width;
757 unsigned short vop_height;
758 VASurfaceID forward_reference_picture;
759 VASurfaceID backward_reference_picture;
762 unsigned int short_video_header : 1;
763 unsigned int chroma_format : 2;
764 unsigned int interlaced : 1;
765 unsigned int obmc_disable : 1;
766 unsigned int sprite_enable : 2;
767 unsigned int sprite_warping_accuracy : 2;
768 unsigned int quant_type : 1;
769 unsigned int quarter_sample : 1;
770 unsigned int data_partitioned : 1;
771 unsigned int reversible_vlc : 1;
772 unsigned int resync_marker_disable : 1;
776 unsigned char no_of_sprite_warping_points;
777 short sprite_trajectory_du[3];
778 short sprite_trajectory_dv[3];
779 unsigned char quant_precision;
782 unsigned int vop_coding_type : 2;
783 unsigned int backward_reference_vop_coding_type : 2;
784 unsigned int vop_rounding_type : 1;
785 unsigned int intra_dc_vlc_thr : 3;
786 unsigned int top_field_first : 1;
787 unsigned int alternate_vertical_scan_flag : 1;
791 unsigned char vop_fcode_forward;
792 unsigned char vop_fcode_backward;
793 unsigned short vop_time_increment_resolution;
794 /* short header related */
795 unsigned char num_gobs_in_vop;
796 unsigned char num_macroblocks_in_gob;
797 /* for direct mode prediction */
800 } VAPictureParameterBufferMPEG4;
802 /* MPEG-4 Inverse Quantization Matrix Buffer */
803 typedef struct _VAIQMatrixBufferMPEG4
805 int load_intra_quant_mat;
806 int load_non_intra_quant_mat;
807 unsigned char intra_quant_mat[64];
808 unsigned char non_intra_quant_mat[64];
809 } VAIQMatrixBufferMPEG4;
811 /* MPEG-4 Slice Parameter Buffer */
812 typedef struct _VASliceParameterBufferMPEG4
814 unsigned int slice_data_size;/* number of bytes in the slice data buffer for this slice */
815 unsigned int slice_data_offset;/* the offset to the first byte of slice data */
816 unsigned int slice_data_flag; /* see VA_SLICE_DATA_FLAG_XXX defintions */
817 unsigned int macroblock_offset;/* the offset to the first bit of MB from the first byte of slice data */
818 unsigned int macroblock_number;
820 } VASliceParameterBufferMPEG4;
826 typedef enum /* see 7.1.1.32 */
829 VAMvMode1MvHalfPel = 1,
830 VAMvMode1MvHalfPelBilinear = 2,
832 VAMvModeIntensityCompensation = 4
835 /* VC-1 Picture Parameter Buffer */
837 * For each picture, and before any slice data, a picture parameter
838 * buffer must be send. Multiple picture parameter buffers may be
839 * sent for a single picture. In that case picture parameters will
840 * apply to all slice data that follow it until a new picture
841 * parameter buffer is sent.
844 * pic_quantizer_type should be set to the applicable quantizer
845 * type as defined by QUANTIZER (J.1.19) and either
846 * PQUANTIZER (7.1.1.8) or PQINDEX (7.1.1.6)
848 typedef struct _VAPictureParameterBufferVC1
850 VASurfaceID forward_reference_picture;
851 VASurfaceID backward_reference_picture;
852 /* if out-of-loop post-processing is done on the render
853 target, then we need to keep the in-loop decoded
854 picture as a reference picture */
855 VASurfaceID inloop_decoded_picture;
857 /* sequence layer for AP or meta data for SP and MP */
860 unsigned int pulldown : 1; /* SEQUENCE_LAYER::PULLDOWN */
861 unsigned int interlace : 1; /* SEQUENCE_LAYER::INTERLACE */
862 unsigned int tfcntrflag : 1; /* SEQUENCE_LAYER::TFCNTRFLAG */
863 unsigned int finterpflag : 1; /* SEQUENCE_LAYER::FINTERPFLAG */
864 unsigned int psf : 1; /* SEQUENCE_LAYER::PSF */
865 unsigned int multires : 1; /* METADATA::MULTIRES */
866 unsigned int overlap : 1; /* METADATA::OVERLAP */
867 unsigned int syncmarker : 1; /* METADATA::SYNCMARKER */
868 unsigned int rangered : 1; /* METADATA::RANGERED */
869 unsigned int max_b_frames : 3; /* METADATA::MAXBFRAMES */
874 unsigned short coded_width; /* ENTRY_POINT_LAYER::CODED_WIDTH */
875 unsigned short coded_height; /* ENTRY_POINT_LAYER::CODED_HEIGHT */
878 unsigned int broken_link : 1; /* ENTRY_POINT_LAYER::BROKEN_LINK */
879 unsigned int closed_entry : 1; /* ENTRY_POINT_LAYER::CLOSED_ENTRY */
880 unsigned int panscan_flag : 1; /* ENTRY_POINT_LAYER::PANSCAN_FLAG */
881 unsigned int loopfilter : 1; /* ENTRY_POINT_LAYER::LOOPFILTER */
885 unsigned char conditional_overlap_flag; /* ENTRY_POINT_LAYER::CONDOVER */
886 unsigned char fast_uvmc_flag; /* ENTRY_POINT_LAYER::FASTUVMC */
889 unsigned int luma_flag : 1; /* ENTRY_POINT_LAYER::RANGE_MAPY_FLAG */
890 unsigned int luma : 3; /* ENTRY_POINT_LAYER::RANGE_MAPY */
891 unsigned int chroma_flag : 1; /* ENTRY_POINT_LAYER::RANGE_MAPUV_FLAG */
892 unsigned int chroma : 3; /* ENTRY_POINT_LAYER::RANGE_MAPUV */
895 } range_mapping_fields;
897 unsigned char b_picture_fraction; /* PICTURE_LAYER::BFRACTION */
898 unsigned char cbp_table; /* PICTURE_LAYER::CBPTAB/ICBPTAB */
899 unsigned char mb_mode_table; /* PICTURE_LAYER::MBMODETAB */
900 unsigned char range_reduction_frame;/* PICTURE_LAYER::RANGEREDFRM */
901 unsigned char rounding_control; /* PICTURE_LAYER::RNDCTRL */
902 unsigned char post_processing; /* PICTURE_LAYER::POSTPROC */
903 unsigned char picture_resolution_index; /* PICTURE_LAYER::RESPIC */
904 unsigned char luma_scale; /* PICTURE_LAYER::LUMSCALE */
905 unsigned char luma_shift; /* PICTURE_LAYER::LUMSHIFT */
908 unsigned int picture_type : 3; /* PICTURE_LAYER::PTYPE */
909 unsigned int frame_coding_mode : 3; /* PICTURE_LAYER::FCM */
910 unsigned int top_field_first : 1; /* PICTURE_LAYER::TFF */
911 unsigned int is_first_field : 1; /* set to 1 if it is the first field */
912 unsigned int intensity_compensation : 1; /* PICTURE_LAYER::INTCOMP */
918 unsigned int mv_type_mb : 1; /* PICTURE::MVTYPEMB */
919 unsigned int direct_mb : 1; /* PICTURE::DIRECTMB */
920 unsigned int skip_mb : 1; /* PICTURE::SKIPMB */
921 unsigned int field_tx : 1; /* PICTURE::FIELDTX */
922 unsigned int forward_mb : 1; /* PICTURE::FORWARDMB */
923 unsigned int ac_pred : 1; /* PICTURE::ACPRED */
924 unsigned int overflags : 1; /* PICTURE::OVERFLAGS */
930 unsigned int bp_mv_type_mb : 1; /* PICTURE::MVTYPEMB */
931 unsigned int bp_direct_mb : 1; /* PICTURE::DIRECTMB */
932 unsigned int bp_skip_mb : 1; /* PICTURE::SKIPMB */
933 unsigned int bp_field_tx : 1; /* PICTURE::FIELDTX */
934 unsigned int bp_forward_mb : 1; /* PICTURE::FORWARDMB */
935 unsigned int bp_ac_pred : 1; /* PICTURE::ACPRED */
936 unsigned int bp_overflags : 1; /* PICTURE::OVERFLAGS */
939 } bitplane_present; /* signal what bitplane is being passed via the bitplane buffer */
942 unsigned int reference_distance_flag : 1;/* PICTURE_LAYER::REFDIST_FLAG */
943 unsigned int reference_distance : 5;/* PICTURE_LAYER::REFDIST */
944 unsigned int num_reference_pictures: 1;/* PICTURE_LAYER::NUMREF */
945 unsigned int reference_field_pic_indicator : 1;/* PICTURE_LAYER::REFFIELD */
951 unsigned int mv_mode : 3; /* PICTURE_LAYER::MVMODE */
952 unsigned int mv_mode2 : 3; /* PICTURE_LAYER::MVMODE2 */
953 unsigned int mv_table : 3; /* PICTURE_LAYER::MVTAB/IMVTAB */
954 unsigned int two_mv_block_pattern_table: 2; /* PICTURE_LAYER::2MVBPTAB */
955 unsigned int four_mv_switch : 1; /* PICTURE_LAYER::4MVSWITCH */
956 unsigned int four_mv_block_pattern_table : 2; /* PICTURE_LAYER::4MVBPTAB */
957 unsigned int extended_mv_flag : 1; /* ENTRY_POINT_LAYER::EXTENDED_MV */
958 unsigned int extended_mv_range : 2; /* PICTURE_LAYER::MVRANGE */
959 unsigned int extended_dmv_flag : 1; /* ENTRY_POINT_LAYER::EXTENDED_DMV */
960 unsigned int extended_dmv_range : 2; /* PICTURE_LAYER::DMVRANGE */
966 unsigned int dquant : 2; /* ENTRY_POINT_LAYER::DQUANT */
967 unsigned int quantizer : 2; /* ENTRY_POINT_LAYER::QUANTIZER */
968 unsigned int half_qp : 1; /* PICTURE_LAYER::HALFQP */
969 unsigned int pic_quantizer_scale : 5;/* PICTURE_LAYER::PQUANT */
970 unsigned int pic_quantizer_type : 1;/* PICTURE_LAYER::PQUANTIZER */
971 unsigned int dq_frame : 1; /* VOPDQUANT::DQUANTFRM */
972 unsigned int dq_profile : 2; /* VOPDQUANT::DQPROFILE */
973 unsigned int dq_sb_edge : 2; /* VOPDQUANT::DQSBEDGE */
974 unsigned int dq_db_edge : 2; /* VOPDQUANT::DQDBEDGE */
975 unsigned int dq_binary_level : 1; /* VOPDQUANT::DQBILEVEL */
976 unsigned int alt_pic_quantizer : 5;/* VOPDQUANT::ALTPQUANT */
979 } pic_quantizer_fields;
982 unsigned int variable_sized_transform_flag : 1;/* ENTRY_POINT_LAYER::VSTRANSFORM */
983 unsigned int mb_level_transform_type_flag : 1;/* PICTURE_LAYER::TTMBF */
984 unsigned int frame_level_transform_type : 2;/* PICTURE_LAYER::TTFRM */
985 unsigned int transform_ac_codingset_idx1 : 2;/* PICTURE_LAYER::TRANSACFRM */
986 unsigned int transform_ac_codingset_idx2 : 2;/* PICTURE_LAYER::TRANSACFRM2 */
987 unsigned int intra_transform_dc_table : 1;/* PICTURE_LAYER::TRANSDCTAB */
991 } VAPictureParameterBufferVC1;
993 /* VC-1 Bitplane Buffer
994 There will be at most three bitplanes coded in any picture header. To send
995 the bitplane data more efficiently, each byte is divided in two nibbles, with
996 each nibble carrying three bitplanes for one macroblock. The following table
997 shows the bitplane data arrangement within each nibble based on the picture
1000 Picture Type Bit3 Bit2 Bit1 Bit0
1001 I or BI OVERFLAGS ACPRED FIELDTX
1002 P MYTYPEMB SKIPMB DIRECTMB
1003 B FORWARDMB SKIPMB DIRECTMB
1005 Within each byte, the lower nibble is for the first MB and the upper nibble is
1006 for the second MB. E.g. the lower nibble of the first byte in the bitplane
1007 buffer is for Macroblock #1 and the upper nibble of the first byte is for
1008 Macroblock #2 in the first row.
1011 /* VC-1 Slice Parameter Buffer */
1012 typedef struct _VASliceParameterBufferVC1
1014 unsigned int slice_data_size;/* number of bytes in the slice data buffer for this slice */
1015 unsigned int slice_data_offset;/* the offset to the first byte of slice data */
1016 unsigned int slice_data_flag; /* see VA_SLICE_DATA_FLAG_XXX defintions */
1017 unsigned int macroblock_offset;/* the offset to the first bit of MB from the first byte of slice data */
1018 unsigned int slice_vertical_position;
1019 } VASliceParameterBufferVC1;
1021 /* VC-1 Slice Data Buffer */
1023 This is simplely a buffer containing raw bit-stream bytes
1026 /****************************
1027 * H.264/AVC data structures
1028 ****************************/
1030 typedef struct _VAPictureH264
1032 VASurfaceID picture_id;
1033 unsigned int frame_idx;
1035 unsigned int TopFieldOrderCnt;
1036 unsigned int BottomFieldOrderCnt;
1038 /* flags in VAPictureH264 could be OR of the following */
1039 #define VA_PICTURE_H264_INVALID 0x00000001
1040 #define VA_PICTURE_H264_TOP_FIELD 0x00000002
1041 #define VA_PICTURE_H264_BOTTOM_FIELD 0x00000004
1042 #define VA_PICTURE_H264_SHORT_TERM_REFERENCE 0x00000008
1043 #define VA_PICTURE_H264_LONG_TERM_REFERENCE 0x00000010
1045 /* H.264 Picture Parameter Buffer */
1047 * For each picture, and before any slice data, a single
1048 * picture parameter buffer must be send.
1050 typedef struct _VAPictureParameterBufferH264
1052 VAPictureH264 CurrPic;
1053 VAPictureH264 ReferenceFrames[16]; /* in DPB */
1054 unsigned short picture_width_in_mbs_minus1;
1055 unsigned short picture_height_in_mbs_minus1;
1056 unsigned char bit_depth_luma_minus8;
1057 unsigned char bit_depth_chroma_minus8;
1058 unsigned char num_ref_frames;
1061 unsigned int chroma_format_idc : 2;
1062 unsigned int residual_colour_transform_flag : 1;
1063 unsigned int gaps_in_frame_num_value_allowed_flag : 1;
1064 unsigned int frame_mbs_only_flag : 1;
1065 unsigned int mb_adaptive_frame_field_flag : 1;
1066 unsigned int direct_8x8_inference_flag : 1;
1067 unsigned int MinLumaBiPredSize8x8 : 1; /* see A.3.3.2 */
1068 unsigned int log2_max_frame_num_minus4 : 4;
1069 unsigned int pic_order_cnt_type : 2;
1070 unsigned int log2_max_pic_order_cnt_lsb_minus4 : 4;
1071 unsigned int delta_pic_order_always_zero_flag : 1;
1075 unsigned char num_slice_groups_minus1;
1076 unsigned char slice_group_map_type;
1077 unsigned short slice_group_change_rate_minus1;
1078 signed char pic_init_qp_minus26;
1079 signed char pic_init_qs_minus26;
1080 signed char chroma_qp_index_offset;
1081 signed char second_chroma_qp_index_offset;
1084 unsigned int entropy_coding_mode_flag : 1;
1085 unsigned int weighted_pred_flag : 1;
1086 unsigned int weighted_bipred_idc : 2;
1087 unsigned int transform_8x8_mode_flag : 1;
1088 unsigned int field_pic_flag : 1;
1089 unsigned int constrained_intra_pred_flag : 1;
1090 unsigned int pic_order_present_flag : 1;
1091 unsigned int deblocking_filter_control_present_flag : 1;
1092 unsigned int redundant_pic_cnt_present_flag : 1;
1093 unsigned int reference_pic_flag : 1; /* nal_ref_idc != 0 */
1097 unsigned short frame_num;
1098 } VAPictureParameterBufferH264;
1100 /* H.264 Inverse Quantization Matrix Buffer */
1101 typedef struct _VAIQMatrixBufferH264
1103 unsigned char ScalingList4x4[6][16];
1104 unsigned char ScalingList8x8[2][64];
1105 } VAIQMatrixBufferH264;
1108 * H.264 Slice Group Map Buffer
1109 * When VAPictureParameterBufferH264::num_slice_group_minus1 is not equal to 0,
1110 * A slice group map buffer should be sent for each picture if required. The buffer
1111 * is sent only when there is a change in the mapping values.
1112 * The slice group map buffer map "map units" to slice groups as specified in
1113 * section 8.2.2 of the H.264 spec. The buffer will contain one byte for each macroblock
1114 * in raster scan order
1117 /* H.264 Slice Parameter Buffer */
1118 typedef struct _VASliceParameterBufferH264
1120 unsigned int slice_data_size;/* number of bytes in the slice data buffer for this slice */
1121 unsigned int slice_data_offset;/* the offset to the NAL start code for this slice */
1122 unsigned int slice_data_flag; /* see VA_SLICE_DATA_FLAG_XXX defintions */
1123 unsigned short slice_data_bit_offset; /* bit offset from NAL start code to the beginning of slice data */
1124 unsigned short first_mb_in_slice;
1125 unsigned char slice_type;
1126 unsigned char direct_spatial_mv_pred_flag;
1127 unsigned char num_ref_idx_l0_active_minus1;
1128 unsigned char num_ref_idx_l1_active_minus1;
1129 unsigned char cabac_init_idc;
1130 char slice_qp_delta;
1131 unsigned char disable_deblocking_filter_idc;
1132 char slice_alpha_c0_offset_div2;
1133 char slice_beta_offset_div2;
1134 VAPictureH264 RefPicList0[32]; /* See 8.2.4.2 */
1135 VAPictureH264 RefPicList1[32]; /* See 8.2.4.2 */
1136 unsigned char luma_log2_weight_denom;
1137 unsigned char chroma_log2_weight_denom;
1138 unsigned char luma_weight_l0_flag;
1139 short luma_weight_l0[32];
1140 short luma_offset_l0[32];
1141 unsigned char chroma_weight_l0_flag;
1142 short chroma_weight_l0[32][2];
1143 short chroma_offset_l0[32][2];
1144 unsigned char luma_weight_l1_flag;
1145 short luma_weight_l1[32];
1146 short luma_offset_l1[32];
1147 unsigned char chroma_weight_l1_flag;
1148 short chroma_weight_l1[32][2];
1149 short chroma_offset_l1[32][2];
1150 } VASliceParameterBufferH264;
1152 /****************************
1153 * Common encode data structures
1154 ****************************/
1157 VAEncPictureTypeIntra = 0,
1158 VAEncPictureTypePredictive = 1,
1159 VAEncPictureTypeBidirectional = 2,
1162 /* Encode Slice Parameter Buffer */
1163 typedef struct _VAEncSliceParameterBuffer
1165 unsigned int start_row_number; /* starting MB row number for this slice */
1166 unsigned int slice_height; /* slice height measured in MB */
1169 unsigned int is_intra : 1;
1170 unsigned int disable_deblocking_filter_idc : 2;
1174 } VAEncSliceParameterBuffer;
1176 /****************************
1177 * H.264 specific encode data structures
1178 ****************************/
1180 typedef struct _VAEncSequenceParameterBufferH264
1182 unsigned char seq_parameter_set_id;
1183 unsigned char level_idc;
1184 unsigned int intra_period;
1185 unsigned int intra_idr_period;
1186 unsigned int picture_width_in_mbs;
1187 unsigned int picture_height_in_mbs;
1188 unsigned int bits_per_second;
1189 unsigned int frame_rate;
1190 unsigned int initial_qp;
1191 unsigned int min_qp;
1192 unsigned int basic_unit_size;
1193 unsigned char vui_flag;
1194 } VAEncSequenceParameterBufferH264;
1196 #define H264_LAST_PICTURE_EOSEQ 0x01 /* the last picture in the sequence */
1197 #define H264_LAST_PICTURE_EOSTREAM 0x02 /* the last picture in the stream */
1198 typedef struct _VAEncPictureParameterBufferH264
1200 VASurfaceID reference_picture;
1201 VASurfaceID reconstructed_picture;
1202 VABufferID coded_buf;
1203 unsigned short picture_width;
1204 unsigned short picture_height;
1205 unsigned char last_picture;
1206 } VAEncPictureParameterBufferH264;
1208 /****************************
1209 * H.263 specific encode data structures
1210 ****************************/
1212 typedef struct _VAEncSequenceParameterBufferH263
1214 unsigned int intra_period;
1215 unsigned int bits_per_second;
1216 unsigned int frame_rate;
1217 unsigned int initial_qp;
1218 unsigned int min_qp;
1219 } VAEncSequenceParameterBufferH263;
1221 typedef struct _VAEncPictureParameterBufferH263
1223 VASurfaceID reference_picture;
1224 VASurfaceID reconstructed_picture;
1225 VABufferID coded_buf;
1226 unsigned short picture_width;
1227 unsigned short picture_height;
1228 VAEncPictureType picture_type;
1229 } VAEncPictureParameterBufferH263;
1231 /****************************
1232 * MPEG-4 specific encode data structures
1233 ****************************/
1235 typedef struct _VAEncSequenceParameterBufferMPEG4
1237 unsigned char profile_and_level_indication;
1238 unsigned int intra_period;
1239 unsigned int video_object_layer_width;
1240 unsigned int video_object_layer_height;
1241 unsigned int vop_time_increment_resolution;
1242 unsigned int fixed_vop_rate;
1243 unsigned int fixed_vop_time_increment;
1244 unsigned int bits_per_second;
1245 unsigned int frame_rate;
1246 unsigned int initial_qp;
1247 unsigned int min_qp;
1248 } VAEncSequenceParameterBufferMPEG4;
1250 typedef struct _VAEncPictureParameterBufferMPEG4
1252 VASurfaceID reference_picture;
1253 VASurfaceID reconstructed_picture;
1254 VABufferID coded_buf;
1255 unsigned short picture_width;
1256 unsigned short picture_height;
1257 unsigned int modulo_time_base; /* number of 1s */
1258 unsigned int vop_time_increment;
1259 VAEncPictureType picture_type;
1260 } VAEncPictureParameterBufferMPEG4;
1264 /* Buffer functions */
1267 * Creates a buffer for "num_elements" elements of "size" bytes and
1268 * initalize with "data".
1269 * if "data" is null, then the contents of the buffer data store
1271 * Basically there are two ways to get buffer data to the server side. One is
1272 * to call vaCreateBuffer() with a non-null "data", which results the data being
1273 * copied to the data store on the server side. A different method that
1274 * eliminates this copy is to pass null as "data" when calling vaCreateBuffer(),
1275 * and then use vaMapBuffer() to map the data store from the server side to the
1276 * client address space for access.
1277 * Note: image buffers are created by the library, not the client. Please see
1278 * vaCreateImage on how image buffers are managed.
1280 VAStatus vaCreateBuffer (
1282 VAContextID context,
1283 VABufferType type, /* in */
1284 unsigned int size, /* in */
1285 unsigned int num_elements, /* in */
1286 void *data, /* in */
1287 VABufferID *buf_id /* out */
1291 * Convey to the server how many valid elements are in the buffer.
1292 * e.g. if multiple slice parameters are being held in a single buffer,
1293 * this will communicate to the server the number of slice parameters
1294 * that are valid in the buffer.
1296 VAStatus vaBufferSetNumElements (
1298 VABufferID buf_id, /* in */
1299 unsigned int num_elements /* in */
1304 * device independent data structure for codedbuffer
1308 * FICTURE_AVE_QP(bit7-0): The average Qp value used during this frame
1309 * LARGE_SLICE(bit8):At least one slice in the current frame was large
1310 * enough for the encoder to attempt to limit its size.
1311 * SLICE_OVERFLOW(bit9): At least one slice in the current frame has
1312 * exceeded the maximum slice size specified.
1314 #define VA_CODED_BUF_STATUS_PICTURE_AVE_QP_MASK 0xff
1315 #define VA_CODED_BUF_STATUS_LARGE_SLICE_MASK 0x100
1316 #define VA_CODED_BUF_STATUS_SLICE_OVERFLOW_MASK 0x200
1319 * device independent data structure for codedbuffer
1321 typedef struct _VACodedBufferSegment {
1322 unsigned int size;/* size of the data buffer in the coded buffer segment, in bytes */
1323 unsigned int bit_offset; /* bit offset into the data buffer where valid bitstream data begins */
1324 unsigned int status; /* status set by the driver on the coded buffer*/
1325 unsigned int reserved; /* for future use */
1326 void *buf; /* pointer to the beginning of the data buffer in the coded buffer segment */
1327 void *next; /* pointer to the next VACodedBufferSegment */
1328 } VACodedBufferSegment;
1331 * Map data store of the buffer into the client's address space
1332 * vaCreateBuffer() needs to be called with "data" set to NULL before
1333 * calling vaMapBuffer()
1335 * if buffer type is VAEncCodedBufferType, pbuf points to link-list of
1336 * VACodedBufferSegment, and the list is terminated if "next" is NULL
1338 VAStatus vaMapBuffer (
1340 VABufferID buf_id, /* in */
1341 void **pbuf /* out */
1345 * After client making changes to a mapped data store, it needs to
1346 * "Unmap" it to let the server know that the data is ready to be
1347 * consumed by the server
1349 VAStatus vaUnmapBuffer (
1351 VABufferID buf_id /* in */
1355 * After this call, the buffer is deleted and this buffer_id is no longer valid
1356 * Only call this if the buffer is not going to be passed to vaRenderBuffer
1358 VAStatus vaDestroyBuffer (
1360 VABufferID buffer_id
1364 Render (Decode) Pictures
1366 A picture represents either a frame or a field.
1368 The Begin/Render/End sequence sends the decode buffers to the server
1372 * Get ready to decode a picture to a target surface
1374 VAStatus vaBeginPicture (
1376 VAContextID context,
1377 VASurfaceID render_target
1381 * Send decode buffers to the server.
1382 * Buffers are automatically destroyed afterwards
1384 VAStatus vaRenderPicture (
1386 VAContextID context,
1387 VABufferID *buffers,
1392 * Make the end of rendering for a picture.
1393 * The server should start processing all pending operations for this
1394 * surface. This call is non-blocking. The client can start another
1395 * Begin/Render/End sequence on a different render target.
1397 VAStatus vaEndPicture (
1409 * This function blocks until all pending operations on the render target
1410 * have been completed. Upon return it is safe to use the render target for a
1411 * different picture.
1413 VAStatus vaSyncSurface (
1415 VASurfaceID render_target
1420 VASurfaceRendering = 1, /* Rendering in progress */
1421 VASurfaceDisplaying = 2, /* Displaying in progress (not safe to render into it) */
1422 /* this status is useful if surface is used as the source */
1424 VASurfaceReady = 4, /* not being rendered or displayed */
1425 VASurfaceSkipped = 8 /* Indicate a skipped frame during encode */
1429 * Find out any pending ops on the render target
1431 VAStatus vaQuerySurfaceStatus (
1433 VASurfaceID render_target,
1434 VASurfaceStatus *status /* out */
1438 * Images and Subpictures
1439 * VAImage is used to either get the surface data to client memory, or
1440 * to copy image data in client memory to a surface.
1441 * Both images, subpictures and surfaces follow the same 2D coordinate system where origin
1442 * is at the upper left corner with positive X to the right and positive Y down
1444 #define VA_FOURCC(ch0, ch1, ch2, ch3) \
1445 ((unsigned long)(unsigned char) (ch0) | ((unsigned long)(unsigned char) (ch1) << 8) | \
1446 ((unsigned long)(unsigned char) (ch2) << 16) | ((unsigned long)(unsigned char) (ch3) << 24 ))
1448 /* a few common FourCCs */
1449 #define VA_FOURCC_NV12 0x3231564E
1450 #define VA_FOURCC_AI44 0x34344149
1451 #define VA_FOURCC_RGBA 0x41424752
1452 #define VA_FOURCC_UYVY 0x59565955
1453 #define VA_FOURCC_YUY2 0x32595559
1454 #define VA_FOURCC_AYUV 0x56555941
1455 #define VA_FOURCC_NV11 0x3131564e
1456 #define VA_FOURCC_YV12 0x32315659
1457 #define VA_FOURCC_P208 0x38303250
1458 #define VA_FOURCC_IYUV 0x56555949
1461 #define VA_LSB_FIRST 1
1462 #define VA_MSB_FIRST 2
1464 typedef struct _VAImageFormat
1466 unsigned int fourcc;
1467 unsigned int byte_order; /* VA_LSB_FIRST, VA_MSB_FIRST */
1468 unsigned int bits_per_pixel;
1469 /* for RGB formats */
1470 unsigned int depth; /* significant bits per pixel */
1471 unsigned int red_mask;
1472 unsigned int green_mask;
1473 unsigned int blue_mask;
1474 unsigned int alpha_mask;
1477 typedef VAGenericID VAImageID;
1479 typedef struct _VAImage
1481 VAImageID image_id; /* uniquely identify this image */
1482 VAImageFormat format;
1483 VABufferID buf; /* image data buffer */
1485 * Image data will be stored in a buffer of type VAImageBufferType to facilitate
1486 * data store on the server side for optimal performance. The buffer will be
1487 * created by the CreateImage function, and proper storage allocated based on the image
1488 * size and format. This buffer is managed by the library implementation, and
1489 * accessed by the client through the buffer Map/Unmap functions.
1491 unsigned short width;
1492 unsigned short height;
1493 unsigned int data_size;
1494 unsigned int num_planes; /* can not be greater than 3 */
1496 * An array indicating the scanline pitch in bytes for each plane.
1497 * Each plane may have a different pitch. Maximum 3 planes for planar formats
1499 unsigned int pitches[3];
1501 * An array indicating the byte offset from the beginning of the image data
1502 * to the start of each plane.
1504 unsigned int offsets[3];
1506 /* The following fields are only needed for paletted formats */
1507 int num_palette_entries; /* set to zero for non-palette images */
1509 * Each component is one byte and entry_bytes indicates the number of components in
1510 * each entry (eg. 3 for YUV palette entries). set to zero for non-palette images
1514 * An array of ascii characters describing the order of the components within the bytes.
1515 * Only entry_bytes characters of the string are used.
1517 char component_order[4];
1520 /* Get maximum number of image formats supported by the implementation */
1521 int vaMaxNumImageFormats (
1526 * Query supported image formats
1527 * The caller must provide a "format_list" array that can hold at
1528 * least vaMaxNumImageFormats() entries. The actual number of formats
1529 * returned in "format_list" is returned in "num_formats".
1531 VAStatus vaQueryImageFormats (
1533 VAImageFormat *format_list, /* out */
1534 int *num_formats /* out */
1538 * Create a VAImage structure
1539 * The width and height fields returned in the VAImage structure may get
1540 * enlarged for some YUV formats. Upon return from this function,
1541 * image->buf has been created and proper storage allocated by the library.
1542 * The client can access the image through the Map/Unmap calls.
1544 VAStatus vaCreateImage (
1546 VAImageFormat *format,
1549 VAImage *image /* out */
1553 * Should call DestroyImage before destroying the surface it is bound to
1555 VAStatus vaDestroyImage (
1560 VAStatus vaSetImagePalette (
1564 * pointer to an array holding the palette data. The size of the array is
1565 * num_palette_entries * entry_bytes in size. The order of the components
1566 * in the palette is described by the component_order in VAImage struct
1568 unsigned char *palette
1572 * Retrive surface data into a VAImage
1573 * Image must be in a format supported by the implementation
1575 VAStatus vaGetImage (
1577 VASurfaceID surface,
1578 int x, /* coordinates of the upper left source pixel */
1580 unsigned int width, /* width and height of the region */
1581 unsigned int height,
1586 * Copy data from a VAImage to a surface
1587 * Image must be in a format supported by the implementation
1588 * Returns a VA_STATUS_ERROR_SURFACE_BUSY if the surface
1589 * shouldn't be rendered into when this is called
1591 VAStatus vaPutImage (
1593 VASurfaceID surface,
1597 unsigned int src_width,
1598 unsigned int src_height,
1601 unsigned int dest_width,
1602 unsigned int dest_height
1606 * Derive an VAImage from an existing surface.
1607 * This interface will derive a VAImage and corresponding image buffer from
1608 * an existing VA Surface. The image buffer can then be mapped/unmapped for
1609 * direct CPU access. This operation is only possible on implementations with
1610 * direct rendering capabilities and internal surface formats that can be
1611 * represented with a VAImage. When the operation is not possible this interface
1612 * will return VA_STATUS_ERROR_OPERATION_FAILED. Clients should then fall back
1613 * to using vaCreateImage + vaPutImage to accomplish the same task in an
1616 * Implementations should only return success when the resulting image buffer
1617 * would be useable with vaMap/Unmap.
1619 * When directly accessing a surface special care must be taken to insure
1620 * proper synchronization with the graphics hardware. Clients should call
1621 * vaQuerySurfaceStatus to insure that a surface is not the target of concurrent
1622 * rendering or currently being displayed by an overlay.
1624 * Additionally nothing about the contents of a surface should be assumed
1625 * following a vaPutSurface. Implementations are free to modify the surface for
1626 * scaling or subpicture blending within a call to vaPutImage.
1628 * Calls to vaPutImage or vaGetImage using the same surface from which the image
1629 * has been derived will return VA_STATUS_ERROR_SURFACE_BUSY. vaPutImage or
1630 * vaGetImage with other surfaces is supported.
1632 * An image created with vaDeriveImage should be freed with vaDestroyImage. The
1633 * image and image buffer structures will be destroyed; however, the underlying
1634 * surface will remain unchanged until freed with vaDestroySurfaces.
1636 VAStatus vaDeriveImage (
1638 VASurfaceID surface,
1639 VAImage *image /* out */
1644 * Subpicture is a special type of image that can be blended
1645 * with a surface during vaPutSurface(). Subpicture can be used to render
1646 * DVD sub-titles or closed captioning text etc.
1649 typedef VAGenericID VASubpictureID;
1651 /* Get maximum number of subpicture formats supported by the implementation */
1652 int vaMaxNumSubpictureFormats (
1656 /* flags for subpictures */
1657 #define VA_SUBPICTURE_CHROMA_KEYING 0x0001
1658 #define VA_SUBPICTURE_GLOBAL_ALPHA 0x0002
1660 * Query supported subpicture formats
1661 * The caller must provide a "format_list" array that can hold at
1662 * least vaMaxNumSubpictureFormats() entries. The flags arrary holds the flag
1663 * for each format to indicate additional capabilities for that format. The actual
1664 * number of formats returned in "format_list" is returned in "num_formats".
1665 * flags: returned value to indicate addtional capabilities
1666 * VA_SUBPICTURE_CHROMA_KEYING - supports chroma-keying
1667 * VA_SUBPICTURE_GLOBAL_ALPHA - supports global alpha
1669 VAStatus vaQuerySubpictureFormats (
1671 VAImageFormat *format_list, /* out */
1672 unsigned int *flags, /* out */
1673 unsigned int *num_formats /* out */
1677 * Subpictures are created with an image associated.
1679 VAStatus vaCreateSubpicture (
1682 VASubpictureID *subpicture /* out */
1686 * Destroy the subpicture before destroying the image it is assocated to
1688 VAStatus vaDestroySubpicture (
1690 VASubpictureID subpicture
1694 * Bind an image to the subpicture. This image will now be associated with
1695 * the subpicture instead of the one at creation.
1697 VAStatus vaSetSubpictureImage (
1699 VASubpictureID subpicture,
1704 * If chromakey is enabled, then the area where the source value falls within
1705 * the chromakey [min, max] range is transparent
1706 * The chromakey component format is the following:
1707 * For RGB: [0:7] Red [8:15] Blue [16:23] Green
1708 * For YUV: [0:7] V [8:15] U [16:23] Y
1709 * The chromakey mask can be used to mask out certain components for chromakey
1712 VAStatus vaSetSubpictureChromakey (
1714 VASubpictureID subpicture,
1715 unsigned int chromakey_min,
1716 unsigned int chromakey_max,
1717 unsigned int chromakey_mask
1721 * Global alpha value is between 0 and 1. A value of 1 means fully opaque and
1722 * a value of 0 means fully transparent. If per-pixel alpha is also specified then
1723 * the overall alpha is per-pixel alpha multiplied by the global alpha
1725 VAStatus vaSetSubpictureGlobalAlpha (
1727 VASubpictureID subpicture,
1732 * vaAssociateSubpicture associates the subpicture with target_surfaces.
1733 * It defines the region mapping between the subpicture and the target
1734 * surfaces through source and destination rectangles (with the same width and height).
1735 * Both will be displayed at the next call to vaPutSurface. Additional
1736 * associations before the call to vaPutSurface simply overrides the association.
1738 VAStatus vaAssociateSubpicture (
1740 VASubpictureID subpicture,
1741 VASurfaceID *target_surfaces,
1743 short src_x, /* upper left offset in subpicture */
1745 unsigned short src_width,
1746 unsigned short src_height,
1747 short dest_x, /* upper left offset in surface */
1749 unsigned short dest_width,
1750 unsigned short dest_height,
1752 * whether to enable chroma-keying or global-alpha
1753 * see VA_SUBPICTURE_XXX values
1759 * vaDeassociateSubpicture removes the association of the subpicture with target_surfaces.
1761 VAStatus vaDeassociateSubpicture (
1763 VASubpictureID subpicture,
1764 VASurfaceID *target_surfaces,
1768 typedef struct _VARectangle
1772 unsigned short width;
1773 unsigned short height;
1777 * Display attributes
1778 * Display attributes are used to control things such as contrast, hue, saturation,
1779 * brightness etc. in the rendering process. The application can query what
1780 * attributes are supported by the driver, and then set the appropriate attributes
1781 * before calling vaPutSurface()
1783 /* PowerVR IEP Lite attributes */
1786 VADISPLAYATTRIB_BLE_OFF = 0x00,
1787 VADISPLAYATTRIB_BLE_LOW,
1788 VADISPLAYATTRIB_BLE_MEDIUM,
1789 VADISPLAYATTRIB_BLE_HIGH,
1790 VADISPLAYATTRIB_BLE_NONE,
1791 } VADisplayAttribBLEMode;
1793 /* attribute value for VADisplayAttribRotation */
1794 #define VA_ROTATION_NONE 0x00000000
1795 #define VA_ROTATION_90 0x00000001
1796 #define VA_ROTATION_180 0x00000002
1797 #define VA_ROTATION_270 0x00000004
1799 /* attribute value for VADisplayAttribOutOfLoopDeblock */
1800 #define VA_OOL_DEBLOCKING_FALSE 0x00000000
1801 #define VA_OOL_DEBLOCKING_TRUE 0x00000001
1804 /* Currently defined display attribute types */
1807 VADisplayAttribBrightness = 0,
1808 VADisplayAttribContrast = 1,
1809 VADisplayAttribHue = 2,
1810 VADisplayAttribSaturation = 3,
1811 /* client can specifiy a background color for the target window
1812 * the new feature of video conference,
1813 * the uncovered area of the surface is filled by this color
1814 * also it will blend with the decoded video color*/
1815 VADisplayAttribBackgroundColor = 4,
1817 * this is a gettable only attribute. For some implementations that use the
1818 * hardware overlay, after PutSurface is called, the surface can not be
1819 * re-used until after the subsequent PutSurface call. If this is the case
1820 * then the value for this attribute will be set to 1 so that the client
1821 * will not attempt to re-use the surface right after returning from a call
1824 * Don't use it, use flag VASurfaceDisplaying of vaQuerySurfaceStatus since
1825 * driver may use overlay or GPU alternatively
1827 VADisplayAttribDirectSurface = 5,
1828 VADisplayAttribRotation = 6,
1829 VADisplayAttribOutofLoopDeblock = 7,
1831 /* PowerVR IEP Lite specific attributes */
1832 VADisplayAttribBLEBlackMode = 8,
1833 VADisplayAttribBLEWhiteMode = 9,
1834 VADisplayAttribBlueStretch = 10,
1835 VADisplayAttribSkinColorCorrection = 11,
1837 * For type VADisplayAttribCSCMatrix, "value" field is a pointer to the color
1838 * conversion matrix. Each element in the matrix is float-point
1840 VADisplayAttribCSCMatrix = 12,
1841 /* specify the constant color used to blend with video surface
1842 * Cd = Cv*Cc*Ac + Cb *(1 - Ac) C means the constant RGB
1843 * d: the final color to overwrite into the frame buffer
1844 * v: decoded video after color conversion,
1845 * c: video color specified by VADisplayAttribBlendColor
1846 * b: background color of the drawable
1848 VADisplayAttribBlendColor = 13,
1849 } VADisplayAttribType;
1851 /* flags for VADisplayAttribute */
1852 #define VA_DISPLAY_ATTRIB_NOT_SUPPORTED 0x0000
1853 #define VA_DISPLAY_ATTRIB_GETTABLE 0x0001
1854 #define VA_DISPLAY_ATTRIB_SETTABLE 0x0002
1856 typedef struct _VADisplayAttribute
1858 VADisplayAttribType type;
1861 int value; /* used by the set/get attribute functions */
1862 /* flags can be VA_DISPLAY_ATTRIB_GETTABLE or VA_DISPLAY_ATTRIB_SETTABLE or OR'd together */
1864 } VADisplayAttribute;
1866 /* Get maximum number of display attributs supported by the implementation */
1867 int vaMaxNumDisplayAttributes (
1872 * Query display attributes
1873 * The caller must provide a "attr_list" array that can hold at
1874 * least vaMaxNumDisplayAttributes() entries. The actual number of attributes
1875 * returned in "attr_list" is returned in "num_attributes".
1877 VAStatus vaQueryDisplayAttributes (
1879 VADisplayAttribute *attr_list, /* out */
1880 int *num_attributes /* out */
1884 * Get display attributes
1885 * This function returns the current attribute values in "attr_list".
1886 * Only attributes returned with VA_DISPLAY_ATTRIB_GETTABLE set in the "flags" field
1887 * from vaQueryDisplayAttributes() can have their values retrieved.
1889 VAStatus vaGetDisplayAttributes (
1891 VADisplayAttribute *attr_list, /* in/out */
1896 * Set display attributes
1897 * Only attributes returned with VA_DISPLAY_ATTRIB_SETTABLE set in the "flags" field
1898 * from vaQueryDisplayAttributes() can be set. If the attribute is not settable or
1899 * the value is out of range, the function returns VA_STATUS_ERROR_ATTR_NOT_SUPPORTED
1901 VAStatus vaSetDisplayAttributes (
1903 VADisplayAttribute *attr_list,