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308
lib/libva/va/va_enc_mpeg2.h
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308
lib/libva/va/va_enc_mpeg2.h
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/*
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* Copyright (c) 2012 Intel Corporation. All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL INTEL AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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/**
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* \file va_enc_mpeg2.h
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* \brief The MPEG-2 encoding API
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*
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* This file contains the \ref api_enc_mpeg2 "MPEG-2 encoding API".
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*/
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#ifndef _VA_ENC_MPEG2_H_
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#define _VA_ENC_MPEG2_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* \defgroup api_enc_mpeg2 MPEG-2 encoding API
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*
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* @{
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*/
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/**
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* \brief MPEG-2 Quantization Matrix Buffer
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*
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*/
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typedef VAIQMatrixBufferMPEG2 VAQMatrixBufferMPEG2;
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/**
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* \brief Packed header types specific to MPEG-2 encoding.
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*
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* Types of packed headers generally used for MPEG-2 encoding.
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*/
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typedef enum {
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/**
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* \brief Packed Sequence Parameter Set (SPS).
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*
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*/
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VAEncPackedHeaderMPEG2_SPS = VAEncPackedHeaderSequence,
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/**
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* \brief Packed Picture Parameter Set (PPS).
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*
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*/
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VAEncPackedHeaderMPEG2_PPS = VAEncPackedHeaderPicture,
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/**
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* \brief Packed slice header.
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*
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*/
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VAEncPackedHeaderMPEG2_Slice = VAEncPackedHeaderSlice,
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} VAEncPackedHeaderTypeMPEG2;
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/**
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* \brief Sequence parameter for MPEG-2 encoding
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*
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* This structure holds information for \c sequence_header() and
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* sequence_extension().
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*
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* If packed sequence headers mode is used, i.e. if the encoding
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* pipeline was configured with the #VA_ENC_PACKED_HEADER_SEQUENCE
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* flag, then the driver expects two more buffers to be provided to
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* the same \c vaRenderPicture() as this buffer:
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* - a #VAEncPackedHeaderParameterBuffer with type set to
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* VAEncPackedHeaderType::VAEncPackedHeaderSequence ;
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* - a #VAEncPackedHeaderDataBuffer which holds the actual packed
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* header data.
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*
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*/
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typedef struct _VAEncSequenceParameterBufferMPEG2 {
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/** \brief Period between I frames. */
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uint32_t intra_period;
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/** \brief Period between I/P frames. */
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uint32_t ip_period;
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/** \brief Picture width.
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*
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* A 14bits unsigned inter, the lower 12bits
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* is horizontal_size_value, and the upper
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* 2bits is \c horizontal_size_extension
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*
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*/
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uint16_t picture_width;
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/** \brief Picture height.
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*
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* A 14bits unsigned inter, the lower 12bits
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* is vertical_size_value, and the upper 2bits is
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* vertical_size_size_extension
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*
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*/
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uint16_t picture_height;
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/**
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* \brief Initial bitrate set for this sequence in CBR or VBR modes.
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*
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* This field represents the initial bitrate value for this
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* sequence if CBR or VBR mode is used, i.e. if the encoder
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* pipeline was created with a #VAConfigAttribRateControl
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* attribute set to either \ref VA_RC_CBR or \ref VA_RC_VBR.
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*
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* bits_per_second may be derived from bit_rate.
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*
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*/
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uint32_t bits_per_second;
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/**
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* \brief Frame rate
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*
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* Derived from frame_rate_value, frame_rate_extension_n and
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* frame_rate_extension_d
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*
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*/
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float frame_rate;
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/** \brief Same as the element in sequence_header() */
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uint16_t aspect_ratio_information;
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/** \brief Define the size of VBV */
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uint32_t vbv_buffer_size;
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union {
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struct {
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/** \brief Same as the element in Sequence extension() */
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uint32_t profile_and_level_indication : 8;
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/** \brief Same as the element in Sequence extension() */
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uint32_t progressive_sequence : 1;
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/** \brief Same as the element in Sequence extension() */
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uint32_t chroma_format : 2;
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/** \brief Same as the element in Sequence extension() */
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uint32_t low_delay : 1;
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/** \brief Same as the element in Sequence extension() */
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uint32_t frame_rate_extension_n : 2;
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/** \brief Same as the element in Sequence extension() */
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uint32_t frame_rate_extension_d : 5;
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} bits;
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uint32_t value;
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} sequence_extension;
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/** \brief Flag to indicate the following GOP header are being updated */
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uint32_t new_gop_header;
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union {
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struct {
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/** \brief Time code */
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uint32_t time_code : 25;
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/** \brief Same as the element in GOP header */
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uint32_t closed_gop : 1;
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/** \brief SAme as the element in GOP header */
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uint32_t broken_link : 1;
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} bits;
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uint32_t value;
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} gop_header;
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/** \brief Reserved bytes for future use, must be zero */
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uint32_t va_reserved[VA_PADDING_LOW];
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} VAEncSequenceParameterBufferMPEG2;
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/**
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* \brief Picture parameter for MPEG-2 encoding
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*
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* This structure holds information for picture_header() and
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* picture_coding_extension()
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*
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* If packed picture headers mode is used, i.e. if the encoding
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* pipeline was configured with the #VA_ENC_PACKED_HEADER_PICTURE
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* flag, then the driver expects two more buffers to be provided to
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* the same \c vaRenderPicture() as this buffer:
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* - a #VAEncPackedHeaderParameterBuffer with type set to
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* VAEncPackedHeaderType::VAEncPackedHeaderPicture ;
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* - a #VAEncPackedHeaderDataBuffer which holds the actual packed
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* header data.
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*
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*/
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typedef struct _VAEncPictureParameterBufferMPEG2 {
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/** \brief Forward reference picture */
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VASurfaceID forward_reference_picture;
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/** \brief Backward reference picture */
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VASurfaceID backward_reference_picture;
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/** \brief Reconstructed(decoded) picture */
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VASurfaceID reconstructed_picture;
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/**
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* \brief Output encoded bitstream.
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*
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* \ref coded_buf has type #VAEncCodedBufferType. It should be
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* large enough to hold the compressed NAL slice and possibly SPS
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* and PPS NAL units.
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*/
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VABufferID coded_buf;
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/**
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* \brief Flag to indicate the picture is the last one or not.
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*
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* This fields holds 0 if the picture to be encoded is not
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* the last one in the stream. Otherwise, it
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* is \ref MPEG2_LAST_PICTURE_EOSTREAM.
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*/
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uint8_t last_picture;
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/** \brief Picture type */
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VAEncPictureType picture_type;
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/** \brief Same as the element in picture_header() */
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uint32_t temporal_reference;
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/** \brief Same as the element in picture_header() */
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uint32_t vbv_delay;
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/** \brief Same as the element in Picture coding extension */
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uint8_t f_code[2][2];
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union {
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struct {
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/** \brief Same as the element in Picture coding extension */
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uint32_t intra_dc_precision : 2;
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/** \brief Same as the element in Picture coding extension */
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uint32_t picture_structure : 2;
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/** \brief Same as the element in Picture coding extension */
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uint32_t top_field_first : 1;
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/** \brief Same as the element in Picture coding extension */
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uint32_t frame_pred_frame_dct : 1;
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/** \brief Same as the element in Picture coding extension */
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uint32_t concealment_motion_vectors : 1;
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/** \brief Same as the element in Picture coding extension */
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uint32_t q_scale_type : 1;
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/** \brief Same as the element in Picture coding extension */
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uint32_t intra_vlc_format : 1;
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/** \brief Same as the element in Picture coding extension */
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uint32_t alternate_scan : 1;
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/** \brief Same as the element in Picture coding extension */
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uint32_t repeat_first_field : 1;
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/** \brief Same as the element in Picture coding extension */
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uint32_t progressive_frame : 1;
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/** \brief Same as the element in Picture coding extension */
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uint32_t composite_display_flag : 1;
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} bits;
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uint32_t value;
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} picture_coding_extension;
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/* \brief Parameters for composite display
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*
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* Valid only when omposite_display_flag is 1
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*/
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union {
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struct {
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/** \brief Same as the element in Picture coding extension */
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uint32_t v_axis : 1;
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/** \brief Same as the element in Picture coding extension */
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uint32_t field_sequence : 3;
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/** \brief Same as the element in Picture coding extension */
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uint32_t sub_carrier : 1;
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/** \brief Same as the element in Picture coding extension */
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uint32_t burst_amplitude : 7;
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/** \brief Same as the element in Picture coding extension */
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uint32_t sub_carrier_phase : 8;
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} bits;
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uint32_t value;
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} composite_display;
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/** \brief Reserved bytes for future use, must be zero */
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uint32_t va_reserved[VA_PADDING_LOW];
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} VAEncPictureParameterBufferMPEG2;
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/**
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* \brief Slice parameter for MPEG-2 encoding
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*
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*/
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typedef struct _VAEncSliceParameterBufferMPEG2 {
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/** \brief Starting MB address for this slice. */
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uint32_t macroblock_address;
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/** \brief Number of macroblocks in this slice. */
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uint32_t num_macroblocks;
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/** \brief Same as the element in slice() */
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int32_t quantiser_scale_code;
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/** \brief Flag to indicate intra slice */
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int32_t is_intra_slice;
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/** \brief Reserved bytes for future use, must be zero */
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uint32_t va_reserved[VA_PADDING_LOW];
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} VAEncSliceParameterBufferMPEG2;
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typedef struct _VAEncMiscParameterExtensionDataSeqDisplayMPEG2 {
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/** should always be 0x02 to identify it is Sequence Display Extension ISO-13818 */
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uint8_t extension_start_code_identifier;
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/** these field should follow ISO-13818 6.3.6 */
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uint8_t video_format;
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uint8_t colour_description;
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uint8_t colour_primaries;
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uint8_t transfer_characteristics;
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uint8_t matrix_coefficients;
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uint16_t display_horizontal_size;
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uint16_t display_vertical_size;
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} VAEncMiscParameterExtensionDataSeqDisplayMPEG2;
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/**@}*/
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#ifdef __cplusplus
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}
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#endif
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#endif /* _VA_ENC_MPEG2_H_ */
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