linux-arkmicro/buildroot-external/package/hx280enc/software/source/h264/H264PictureParameterSet.c

/*------------------------------------------------------------------------------
--                                                                            --
--       This software is confidential and proprietary and may be used        --
--        only as expressly authorized by a licensing agreement from          --
--                                                                            --
--                            Hantro Products Oy.                             --
--                                                                            --
--                   (C) COPYRIGHT 2006 HANTRO PRODUCTS OY                    --
--                            ALL RIGHTS RESERVED                             --
--                                                                            --
--                 The entire notice above must be reproduced                 --
--                  on all copies and should not be removed.                  --
--                                                                            --
--------------------------------------------------------------------------------
--
--  Abstract  : Picture Parameter Set handling
--
------------------------------------------------------------------------------*/

/*------------------------------------------------------------------------------
    1. Include headers
------------------------------------------------------------------------------*/
#include "H264PictureParameterSet.h"
#include "H264NalUnit.h"

/*------------------------------------------------------------------------------
    2. External compiler flags
--------------------------------------------------------------------------------

--------------------------------------------------------------------------------
    3. Module defines
------------------------------------------------------------------------------*/

/*------------------------------------------------------------------------------
    4. Local function prototypes
------------------------------------------------------------------------------*/

/*------------------------------------------------------------------------------

	H264PicParameterInit

------------------------------------------------------------------------------*/
void H264PicParameterSetInit(pps_s * pps)
{
    pps->byteStream = ENCHW_YES;
    pps->picParameterSetId = 0;
    pps->seqParameterSetId = 0;
    pps->entropyCodingMode = ENCHW_NO;
    pps->picOrderPresent = ENCHW_NO;
    pps->numSliceGroupsMinus1 = 0;
    pps->numRefIdxL0ActiveMinus1 = 0;
    pps->numRefIdxL1ActiveMinus1 = 0;
    pps->weightedPred = ENCHW_NO;
    pps->weightedBipredIdc = 0;
    pps->picInitQpMinus26 = 0;
    pps->picInitQsMinus26 = 0;
    pps->chromaQpIndexOffset = 2;
    pps->deblockingFilterControlPresent = ENCHW_YES;
    pps->constIntraPred = ENCHW_NO;
    pps->redundantPicCntPresent = ENCHW_NO;
    pps->transform8x8Mode = ENCHW_NO;

    return;
}

/*------------------------------------------------------------------------------

	H264PicParameterSet

------------------------------------------------------------------------------*/
void H264PicParameterSet(stream_s * stream, pps_s * pps)
{
    /* Nal unit sytax */
    H264NalUnitHdr(stream, 1, PPSET, pps->byteStream);

    H264ExpGolombUnsigned(stream, pps->picParameterSetId);
    COMMENT("pic_parameter_set_id");

    H264ExpGolombUnsigned(stream, pps->seqParameterSetId);
    COMMENT("seq_parameter_set_id");

    H264NalBits(stream, (i32) pps->entropyCodingMode, 1);
    COMMENT("entropy_coding_mode_flag");

    H264NalBits(stream, (i32) pps->picOrderPresent, 1);
    COMMENT("pic_order_present_flag");

    H264ExpGolombUnsigned(stream, pps->numSliceGroupsMinus1);
    COMMENT("num_slice_groups_minus1");

    /* if( num_slice_groups_minus1 > 0 ) etc... not implementet yet */

    H264ExpGolombUnsigned(stream, pps->numRefIdxL0ActiveMinus1);
    COMMENT("num_ref_idx_l0_active_minus1");

    H264ExpGolombUnsigned(stream, pps->numRefIdxL1ActiveMinus1);
    COMMENT("num_ref_idx_l1_active_minus1");

    H264NalBits(stream, (i32) pps->weightedPred, 1);
    COMMENT("weighted_pred_flag");

    H264NalBits(stream, pps->weightedBipredIdc, 2);
    COMMENT("weighted_bipred_idc");

    H264ExpGolombSigned(stream, pps->picInitQpMinus26);
    COMMENT("pic_init_qp_minus26");

    H264ExpGolombSigned(stream, pps->picInitQsMinus26);
    COMMENT("pic_init_qs_minus26");

    H264ExpGolombSigned(stream, pps->chromaQpIndexOffset);
    COMMENT("chroma_qp_index_offset");

    H264NalBits(stream, (i32) pps->deblockingFilterControlPresent, 1);
    COMMENT("deblocking_filter_control_present_flag");

    H264NalBits(stream, (i32) pps->constIntraPred, 1);
    COMMENT("constrained_intra_pred_flag");

    H264NalBits(stream, (i32) pps->redundantPicCntPresent, 1);
    COMMENT("redundant_pic_cnt_present_flag");

    if (pps->transform8x8Mode == ENCHW_YES)
    {
        H264NalBits(stream, pps->transform8x8Mode, 1);
        COMMENT("transform_8x8_mode_flag");

        H264NalBits(stream, 0, 1);
        COMMENT("pic_scaling_matrix_present_flag");

        H264ExpGolombSigned(stream, pps->chromaQpIndexOffset);
        COMMENT("second_chroma_qp_index_offset");
    }


    H264NalUnitTrailinBits(stream, pps->byteStream);

    return;
}