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