1064 lines
31 KiB
C
1064 lines
31 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) STMicroelectronics SA 2015
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* Authors: Yannick Fertre <yannick.fertre@st.com>
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* Hugues Fruchet <hugues.fruchet@st.com>
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*/
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#include "hva.h"
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#include "hva-hw.h"
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#define MAX_SPS_PPS_SIZE 128
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#define BITSTREAM_OFFSET_MASK 0x7F
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/* video max size*/
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#define H264_MAX_SIZE_W 1920
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#define H264_MAX_SIZE_H 1920
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/* macroBlocs number (width & height) */
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#define MB_W(w) ((w + 0xF) / 0x10)
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#define MB_H(h) ((h + 0xF) / 0x10)
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/* formula to get temporal or spatial data size */
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#define DATA_SIZE(w, h) (MB_W(w) * MB_H(h) * 16)
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#define SEARCH_WINDOW_BUFFER_MAX_SIZE(w) ((4 * MB_W(w) + 42) * 256 * 3 / 2)
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#define CABAC_CONTEXT_BUFFER_MAX_SIZE(w) (MB_W(w) * 16)
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#define CTX_MB_BUFFER_MAX_SIZE(w) (MB_W(w) * 16 * 8)
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#define SLICE_HEADER_SIZE (4 * 16)
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#define BRC_DATA_SIZE (5 * 16)
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/* source buffer copy in YUV 420 MB-tiled format with size=16*256*3/2 */
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#define CURRENT_WINDOW_BUFFER_MAX_SIZE (16 * 256 * 3 / 2)
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/*
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* 4 lines of pixels (in Luma, Chroma blue and Chroma red) of top MB
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* for deblocking with size=4*16*MBx*2
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*/
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#define LOCAL_RECONSTRUCTED_BUFFER_MAX_SIZE(w) (4 * 16 * MB_W(w) * 2)
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/* factor for bitrate and cpb buffer size max values if profile >= high */
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#define H264_FACTOR_HIGH 1200
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/* factor for bitrate and cpb buffer size max values if profile < high */
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#define H264_FACTOR_BASELINE 1000
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/* number of bytes for NALU_TYPE_FILLER_DATA header and footer */
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#define H264_FILLER_DATA_SIZE 6
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struct h264_profile {
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enum v4l2_mpeg_video_h264_level level;
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u32 max_mb_per_seconds;
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u32 max_frame_size;
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u32 max_bitrate;
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u32 max_cpb_size;
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u32 min_comp_ratio;
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};
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static const struct h264_profile h264_infos_list[] = {
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{V4L2_MPEG_VIDEO_H264_LEVEL_1_0, 1485, 99, 64, 175, 2},
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{V4L2_MPEG_VIDEO_H264_LEVEL_1B, 1485, 99, 128, 350, 2},
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{V4L2_MPEG_VIDEO_H264_LEVEL_1_1, 3000, 396, 192, 500, 2},
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{V4L2_MPEG_VIDEO_H264_LEVEL_1_2, 6000, 396, 384, 1000, 2},
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{V4L2_MPEG_VIDEO_H264_LEVEL_1_3, 11880, 396, 768, 2000, 2},
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{V4L2_MPEG_VIDEO_H264_LEVEL_2_0, 11880, 396, 2000, 2000, 2},
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{V4L2_MPEG_VIDEO_H264_LEVEL_2_1, 19800, 792, 4000, 4000, 2},
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{V4L2_MPEG_VIDEO_H264_LEVEL_2_2, 20250, 1620, 4000, 4000, 2},
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{V4L2_MPEG_VIDEO_H264_LEVEL_3_0, 40500, 1620, 10000, 10000, 2},
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{V4L2_MPEG_VIDEO_H264_LEVEL_3_1, 108000, 3600, 14000, 14000, 4},
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{V4L2_MPEG_VIDEO_H264_LEVEL_3_2, 216000, 5120, 20000, 20000, 4},
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{V4L2_MPEG_VIDEO_H264_LEVEL_4_0, 245760, 8192, 20000, 25000, 4},
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{V4L2_MPEG_VIDEO_H264_LEVEL_4_1, 245760, 8192, 50000, 62500, 2},
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{V4L2_MPEG_VIDEO_H264_LEVEL_4_2, 522240, 8704, 50000, 62500, 2},
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{V4L2_MPEG_VIDEO_H264_LEVEL_5_0, 589824, 22080, 135000, 135000, 2},
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{V4L2_MPEG_VIDEO_H264_LEVEL_5_1, 983040, 36864, 240000, 240000, 2}
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};
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enum hva_brc_type {
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BRC_TYPE_NONE = 0,
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BRC_TYPE_CBR = 1,
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BRC_TYPE_VBR = 2,
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BRC_TYPE_VBR_LOW_DELAY = 3
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};
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enum hva_entropy_coding_mode {
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CAVLC = 0,
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CABAC = 1
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};
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enum hva_picture_coding_type {
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PICTURE_CODING_TYPE_I = 0,
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PICTURE_CODING_TYPE_P = 1,
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PICTURE_CODING_TYPE_B = 2
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};
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enum hva_h264_sampling_mode {
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SAMPLING_MODE_NV12 = 0,
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SAMPLING_MODE_UYVY = 1,
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SAMPLING_MODE_RGB3 = 3,
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SAMPLING_MODE_XRGB4 = 4,
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SAMPLING_MODE_NV21 = 8,
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SAMPLING_MODE_VYUY = 9,
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SAMPLING_MODE_BGR3 = 11,
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SAMPLING_MODE_XBGR4 = 12,
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SAMPLING_MODE_RGBX4 = 20,
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SAMPLING_MODE_BGRX4 = 28
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};
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enum hva_h264_nalu_type {
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NALU_TYPE_UNKNOWN = 0,
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NALU_TYPE_SLICE = 1,
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NALU_TYPE_SLICE_DPA = 2,
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NALU_TYPE_SLICE_DPB = 3,
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NALU_TYPE_SLICE_DPC = 4,
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NALU_TYPE_SLICE_IDR = 5,
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NALU_TYPE_SEI = 6,
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NALU_TYPE_SPS = 7,
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NALU_TYPE_PPS = 8,
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NALU_TYPE_AU_DELIMITER = 9,
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NALU_TYPE_SEQ_END = 10,
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NALU_TYPE_STREAM_END = 11,
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NALU_TYPE_FILLER_DATA = 12,
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NALU_TYPE_SPS_EXT = 13,
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NALU_TYPE_PREFIX_UNIT = 14,
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NALU_TYPE_SUBSET_SPS = 15,
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NALU_TYPE_SLICE_AUX = 19,
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NALU_TYPE_SLICE_EXT = 20
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};
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enum hva_h264_sei_payload_type {
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SEI_BUFFERING_PERIOD = 0,
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SEI_PICTURE_TIMING = 1,
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SEI_STEREO_VIDEO_INFO = 21,
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SEI_FRAME_PACKING_ARRANGEMENT = 45
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};
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/*
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* stereo Video Info struct
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*/
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struct hva_h264_stereo_video_sei {
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u8 field_views_flag;
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u8 top_field_is_left_view_flag;
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u8 current_frame_is_left_view_flag;
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u8 next_frame_is_second_view_flag;
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u8 left_view_self_contained_flag;
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u8 right_view_self_contained_flag;
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};
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/*
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* struct hva_h264_td
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*
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* @frame_width: width in pixels of the buffer containing the input frame
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* @frame_height: height in pixels of the buffer containing the input frame
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* @frame_num: the parameter to be written in the slice header
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* @picture_coding_type: type I, P or B
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* @pic_order_cnt_type: POC mode, as defined in H264 std : can be 0,1,2
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* @first_picture_in_sequence: flag telling to encoder that this is the
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* first picture in a video sequence.
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* Used for VBR
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* @slice_size_type: 0 = no constraint to close the slice
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* 1= a slice is closed as soon as the slice_mb_size limit
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* is reached
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* 2= a slice is closed as soon as the slice_byte_size limit
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* is reached
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* 3= a slice is closed as soon as either the slice_byte_size
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* limit or the slice_mb_size limit is reached
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* @slice_mb_size: defines the slice size in number of macroblocks
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* (used when slice_size_type=1 or slice_size_type=3)
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* @ir_param_option: defines the number of macroblocks per frame to be
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* refreshed by AIR algorithm OR the refresh period
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* by CIR algorithm
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* @intra_refresh_type: enables the adaptive intra refresh algorithm.
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* Disable=0 / Adaptative=1 and Cycle=2 as intra refresh
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* @use_constrained_intra_flag: constrained_intra_pred_flag from PPS
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* @transform_mode: controls the use of 4x4/8x8 transform mode
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* @disable_deblocking_filter_idc:
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* 0: specifies that all luma and chroma block edges of
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* the slice are filtered.
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* 1: specifies that deblocking is disabled for all block
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* edges of the slice.
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* 2: specifies that all luma and chroma block edges of
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* the slice are filtered with exception of the block edges
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* that coincide with slice boundaries
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* @slice_alpha_c0_offset_div2: to be written in slice header,
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* controls deblocking
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* @slice_beta_offset_div2: to be written in slice header,
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* controls deblocking
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* @encoder_complexity: encoder complexity control (IME).
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* 0 = I_16x16, P_16x16, Full ME Complexity
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* 1 = I_16x16, I_NxN, P_16x16, Full ME Complexity
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* 2 = I_16x16, I_NXN, P_16x16, P_WxH, Full ME Complexity
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* 4 = I_16x16, P_16x16, Reduced ME Complexity
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* 5 = I_16x16, I_NxN, P_16x16, Reduced ME Complexity
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* 6 = I_16x16, I_NXN, P_16x16, P_WxH, Reduced ME Complexity
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* @chroma_qp_index_offset: coming from picture parameter set
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* (PPS see [H.264 STD] 7.4.2.2)
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* @entropy_coding_mode: entropy coding mode.
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* 0 = CAVLC
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* 1 = CABAC
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* @brc_type: selects the bit-rate control algorithm
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* 0 = constant Qp, (no BRC)
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* 1 = CBR
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* 2 = VBR
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* @quant: Quantization param used in case of fix QP encoding (no BRC)
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* @non_VCL_NALU_Size: size of non-VCL NALUs (SPS, PPS, filler),
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* used by BRC
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* @cpb_buffer_size: size of Coded Picture Buffer, used by BRC
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* @bit_rate: target bitrate, for BRC
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* @qp_min: min QP threshold
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* @qp_max: max QP threshold
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* @framerate_num: target framerate numerator , used by BRC
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* @framerate_den: target framerate denomurator , used by BRC
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* @delay: End-to-End Initial Delay
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* @strict_HRD_compliancy: flag for HDR compliancy (1)
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* May impact quality encoding
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* @addr_source_buffer: address of input frame buffer for current frame
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* @addr_fwd_Ref_Buffer: address of reference frame buffer
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* @addr_rec_buffer: address of reconstructed frame buffer
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* @addr_output_bitstream_start: output bitstream start address
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* @addr_output_bitstream_end: output bitstream end address
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* @addr_external_sw : address of external search window
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* @addr_lctx : address of context picture buffer
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* @addr_local_rec_buffer: address of local reconstructed buffer
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* @addr_spatial_context: address of spatial context buffer
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* @bitstream_offset: offset in bits between aligned bitstream start
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* address and first bit to be written by HVA.
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* Range value is [0..63]
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* @sampling_mode: Input picture format .
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* 0: YUV420 semi_planar Interleaved
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* 1: YUV422 raster Interleaved
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* @addr_param_out: address of output parameters structure
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* @addr_scaling_matrix: address to the coefficient of
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* the inverse scaling matrix
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* @addr_scaling_matrix_dir: address to the coefficient of
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* the direct scaling matrix
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* @addr_cabac_context_buffer: address of cabac context buffer
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* @GmvX: Input information about the horizontal global displacement of
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* the encoded frame versus the previous one
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* @GmvY: Input information about the vertical global displacement of
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* the encoded frame versus the previous one
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* @window_width: width in pixels of the window to be encoded inside
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* the input frame
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* @window_height: width in pixels of the window to be encoded inside
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* the input frame
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* @window_horizontal_offset: horizontal offset in pels for input window
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* within input frame
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* @window_vertical_offset: vertical offset in pels for input window
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* within input frame
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* @addr_roi: Map of QP offset for the Region of Interest algorithm and
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* also used for Error map.
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* Bit 0-6 used for qp offset (value -64 to 63).
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* Bit 7 used to force intra
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* @addr_slice_header: address to slice header
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* @slice_header_size_in_bits: size in bits of the Slice header
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* @slice_header_offset0: Slice header offset where to insert
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* first_Mb_in_slice
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* @slice_header_offset1: Slice header offset where to insert
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* slice_qp_delta
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* @slice_header_offset2: Slice header offset where to insert
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* num_MBs_in_slice
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* @slice_synchro_enable: enable "slice ready" interrupt after each slice
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* @max_slice_number: Maximum number of slice in a frame
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* (0 is strictly forbidden)
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* @rgb2_yuv_y_coeff: Four coefficients (C0C1C2C3) to convert from RGB to
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* YUV for the Y component.
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* Y = C0*R + C1*G + C2*B + C3 (C0 is on byte 0)
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* @rgb2_yuv_u_coeff: four coefficients (C0C1C2C3) to convert from RGB to
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* YUV for the Y component.
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* Y = C0*R + C1*G + C2*B + C3 (C0 is on byte 0)
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* @rgb2_yuv_v_coeff: Four coefficients (C0C1C2C3) to convert from RGB to
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* YUV for the U (Cb) component.
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* U = C0*R + C1*G + C2*B + C3 (C0 is on byte 0)
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* @slice_byte_size: maximum slice size in bytes
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* (used when slice_size_type=2 or slice_size_type=3)
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* @max_air_intra_mb_nb: Maximum number of intra macroblock in a frame
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* for the AIR algorithm
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* @brc_no_skip: Disable skipping in the Bitrate Controller
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* @addr_brc_in_out_parameter: address of static buffer for BRC parameters
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*/
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struct hva_h264_td {
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u16 frame_width;
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u16 frame_height;
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u32 frame_num;
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u16 picture_coding_type;
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u16 reserved1;
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u16 pic_order_cnt_type;
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u16 first_picture_in_sequence;
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u16 slice_size_type;
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u16 reserved2;
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u32 slice_mb_size;
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u16 ir_param_option;
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u16 intra_refresh_type;
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u16 use_constrained_intra_flag;
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u16 transform_mode;
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u16 disable_deblocking_filter_idc;
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s16 slice_alpha_c0_offset_div2;
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s16 slice_beta_offset_div2;
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u16 encoder_complexity;
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s16 chroma_qp_index_offset;
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u16 entropy_coding_mode;
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u16 brc_type;
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u16 quant;
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u32 non_vcl_nalu_size;
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u32 cpb_buffer_size;
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u32 bit_rate;
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u16 qp_min;
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u16 qp_max;
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u16 framerate_num;
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u16 framerate_den;
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u16 delay;
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u16 strict_hrd_compliancy;
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u32 addr_source_buffer;
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u32 addr_fwd_ref_buffer;
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u32 addr_rec_buffer;
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u32 addr_output_bitstream_start;
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u32 addr_output_bitstream_end;
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u32 addr_external_sw;
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u32 addr_lctx;
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u32 addr_local_rec_buffer;
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u32 addr_spatial_context;
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u16 bitstream_offset;
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u16 sampling_mode;
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u32 addr_param_out;
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u32 addr_scaling_matrix;
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u32 addr_scaling_matrix_dir;
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u32 addr_cabac_context_buffer;
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u32 reserved3;
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u32 reserved4;
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s16 gmv_x;
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s16 gmv_y;
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u16 window_width;
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u16 window_height;
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u16 window_horizontal_offset;
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u16 window_vertical_offset;
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u32 addr_roi;
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u32 addr_slice_header;
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u16 slice_header_size_in_bits;
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u16 slice_header_offset0;
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u16 slice_header_offset1;
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u16 slice_header_offset2;
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u32 reserved5;
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u32 reserved6;
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u16 reserved7;
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u16 reserved8;
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u16 slice_synchro_enable;
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u16 max_slice_number;
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u32 rgb2_yuv_y_coeff;
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u32 rgb2_yuv_u_coeff;
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u32 rgb2_yuv_v_coeff;
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u32 slice_byte_size;
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u16 max_air_intra_mb_nb;
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u16 brc_no_skip;
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u32 addr_temporal_context;
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u32 addr_brc_in_out_parameter;
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};
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/*
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* struct hva_h264_slice_po
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*
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* @ slice_size: slice size
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* @ slice_start_time: start time
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* @ slice_stop_time: stop time
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* @ slice_num: slice number
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*/
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struct hva_h264_slice_po {
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u32 slice_size;
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u32 slice_start_time;
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u32 slice_end_time;
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u32 slice_num;
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};
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/*
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* struct hva_h264_po
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*
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* @ bitstream_size: bitstream size
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* @ dct_bitstream_size: dtc bitstream size
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* @ stuffing_bits: number of stuffing bits inserted by the encoder
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* @ removal_time: removal time of current frame (nb of ticks 1/framerate)
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* @ hvc_start_time: hvc start time
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* @ hvc_stop_time: hvc stop time
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* @ slice_count: slice count
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*/
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struct hva_h264_po {
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u32 bitstream_size;
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u32 dct_bitstream_size;
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u32 stuffing_bits;
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u32 removal_time;
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u32 hvc_start_time;
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u32 hvc_stop_time;
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u32 slice_count;
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u32 reserved0;
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struct hva_h264_slice_po slice_params[16];
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};
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struct hva_h264_task {
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struct hva_h264_td td;
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struct hva_h264_po po;
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};
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/*
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* struct hva_h264_ctx
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*
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* @seq_info: sequence information buffer
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* @ref_frame: reference frame buffer
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* @rec_frame: reconstructed frame buffer
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* @task: task descriptor
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*/
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struct hva_h264_ctx {
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struct hva_buffer *seq_info;
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struct hva_buffer *ref_frame;
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struct hva_buffer *rec_frame;
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struct hva_buffer *task;
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};
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static int hva_h264_fill_slice_header(struct hva_ctx *pctx,
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u8 *slice_header_addr,
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struct hva_controls *ctrls,
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int frame_num,
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u16 *header_size,
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u16 *header_offset0,
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u16 *header_offset1,
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u16 *header_offset2)
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{
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/*
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* with this HVA hardware version, part of the slice header is computed
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* on host and part by hardware.
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* The part of host is precomputed and available through this array.
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*/
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|
struct device *dev = ctx_to_dev(pctx);
|
|
int cabac = V4L2_MPEG_VIDEO_H264_ENTROPY_MODE_CABAC;
|
|
static const unsigned char slice_header[] = {
|
|
0x00, 0x00, 0x00, 0x01,
|
|
0x41, 0x34, 0x07, 0x00
|
|
};
|
|
int idr_pic_id = frame_num % 2;
|
|
enum hva_picture_coding_type type;
|
|
u32 frame_order = frame_num % ctrls->gop_size;
|
|
|
|
if (!(frame_num % ctrls->gop_size))
|
|
type = PICTURE_CODING_TYPE_I;
|
|
else
|
|
type = PICTURE_CODING_TYPE_P;
|
|
|
|
memcpy(slice_header_addr, slice_header, sizeof(slice_header));
|
|
|
|
*header_size = 56;
|
|
*header_offset0 = 40;
|
|
*header_offset1 = 13;
|
|
*header_offset2 = 0;
|
|
|
|
if (type == PICTURE_CODING_TYPE_I) {
|
|
slice_header_addr[4] = 0x65;
|
|
slice_header_addr[5] = 0x11;
|
|
|
|
/* toggle the I frame */
|
|
if ((frame_num / ctrls->gop_size) % 2) {
|
|
*header_size += 4;
|
|
*header_offset1 += 4;
|
|
slice_header_addr[6] = 0x04;
|
|
slice_header_addr[7] = 0x70;
|
|
|
|
} else {
|
|
*header_size += 2;
|
|
*header_offset1 += 2;
|
|
slice_header_addr[6] = 0x09;
|
|
slice_header_addr[7] = 0xC0;
|
|
}
|
|
} else {
|
|
if (ctrls->entropy_mode == cabac) {
|
|
*header_size += 1;
|
|
*header_offset1 += 1;
|
|
slice_header_addr[7] = 0x80;
|
|
}
|
|
/*
|
|
* update slice header with P frame order
|
|
* frame order is limited to 16 (coded on 4bits only)
|
|
*/
|
|
slice_header_addr[5] += ((frame_order & 0x0C) >> 2);
|
|
slice_header_addr[6] += ((frame_order & 0x03) << 6);
|
|
}
|
|
|
|
dev_dbg(dev,
|
|
"%s %s slice header order %d idrPicId %d header size %d\n",
|
|
pctx->name, __func__, frame_order, idr_pic_id, *header_size);
|
|
return 0;
|
|
}
|
|
|
|
static int hva_h264_fill_data_nal(struct hva_ctx *pctx,
|
|
unsigned int stuffing_bytes, u8 *addr,
|
|
unsigned int stream_size, unsigned int *size)
|
|
{
|
|
struct device *dev = ctx_to_dev(pctx);
|
|
static const u8 start[] = { 0x00, 0x00, 0x00, 0x01 };
|
|
|
|
dev_dbg(dev, "%s %s stuffing bytes %d\n", pctx->name, __func__,
|
|
stuffing_bytes);
|
|
|
|
if ((*size + stuffing_bytes + H264_FILLER_DATA_SIZE) > stream_size) {
|
|
dev_dbg(dev, "%s %s too many stuffing bytes %d\n",
|
|
pctx->name, __func__, stuffing_bytes);
|
|
return 0;
|
|
}
|
|
|
|
/* start code */
|
|
memcpy(addr + *size, start, sizeof(start));
|
|
*size += sizeof(start);
|
|
|
|
/* nal_unit_type */
|
|
addr[*size] = NALU_TYPE_FILLER_DATA;
|
|
*size += 1;
|
|
|
|
memset(addr + *size, 0xff, stuffing_bytes);
|
|
*size += stuffing_bytes;
|
|
|
|
addr[*size] = 0x80;
|
|
*size += 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int hva_h264_fill_sei_nal(struct hva_ctx *pctx,
|
|
enum hva_h264_sei_payload_type type,
|
|
u8 *addr, u32 *size)
|
|
{
|
|
struct device *dev = ctx_to_dev(pctx);
|
|
static const u8 start[] = { 0x00, 0x00, 0x00, 0x01 };
|
|
struct hva_h264_stereo_video_sei info;
|
|
u8 offset = 7;
|
|
u8 msg = 0;
|
|
|
|
/* start code */
|
|
memcpy(addr + *size, start, sizeof(start));
|
|
*size += sizeof(start);
|
|
|
|
/* nal_unit_type */
|
|
addr[*size] = NALU_TYPE_SEI;
|
|
*size += 1;
|
|
|
|
/* payload type */
|
|
addr[*size] = type;
|
|
*size += 1;
|
|
|
|
switch (type) {
|
|
case SEI_STEREO_VIDEO_INFO:
|
|
memset(&info, 0, sizeof(info));
|
|
|
|
/* set to top/bottom frame packing arrangement */
|
|
info.field_views_flag = 1;
|
|
info.top_field_is_left_view_flag = 1;
|
|
|
|
/* payload size */
|
|
addr[*size] = 1;
|
|
*size += 1;
|
|
|
|
/* payload */
|
|
msg = info.field_views_flag << offset--;
|
|
|
|
if (info.field_views_flag) {
|
|
msg |= info.top_field_is_left_view_flag <<
|
|
offset--;
|
|
} else {
|
|
msg |= info.current_frame_is_left_view_flag <<
|
|
offset--;
|
|
msg |= info.next_frame_is_second_view_flag <<
|
|
offset--;
|
|
}
|
|
msg |= info.left_view_self_contained_flag << offset--;
|
|
msg |= info.right_view_self_contained_flag << offset--;
|
|
|
|
addr[*size] = msg;
|
|
*size += 1;
|
|
|
|
addr[*size] = 0x80;
|
|
*size += 1;
|
|
|
|
return 0;
|
|
case SEI_BUFFERING_PERIOD:
|
|
case SEI_PICTURE_TIMING:
|
|
case SEI_FRAME_PACKING_ARRANGEMENT:
|
|
default:
|
|
dev_err(dev, "%s sei nal type not supported %d\n",
|
|
pctx->name, type);
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
static int hva_h264_prepare_task(struct hva_ctx *pctx,
|
|
struct hva_h264_task *task,
|
|
struct hva_frame *frame,
|
|
struct hva_stream *stream)
|
|
{
|
|
struct hva_dev *hva = ctx_to_hdev(pctx);
|
|
struct device *dev = ctx_to_dev(pctx);
|
|
struct hva_h264_ctx *ctx = (struct hva_h264_ctx *)pctx->priv;
|
|
struct hva_buffer *seq_info = ctx->seq_info;
|
|
struct hva_buffer *fwd_ref_frame = ctx->ref_frame;
|
|
struct hva_buffer *loc_rec_frame = ctx->rec_frame;
|
|
struct hva_h264_td *td = &task->td;
|
|
struct hva_controls *ctrls = &pctx->ctrls;
|
|
struct v4l2_fract *time_per_frame = &pctx->ctrls.time_per_frame;
|
|
int cavlc = V4L2_MPEG_VIDEO_H264_ENTROPY_MODE_CAVLC;
|
|
u32 frame_num = pctx->stream_num;
|
|
u32 addr_esram = hva->esram_addr;
|
|
enum v4l2_mpeg_video_h264_level level;
|
|
dma_addr_t paddr = 0;
|
|
u8 *slice_header_vaddr;
|
|
u32 frame_width = frame->info.aligned_width;
|
|
u32 frame_height = frame->info.aligned_height;
|
|
u32 max_cpb_buffer_size;
|
|
unsigned int payload = stream->bytesused;
|
|
u32 max_bitrate;
|
|
|
|
/* check width and height parameters */
|
|
if ((frame_width > max(H264_MAX_SIZE_W, H264_MAX_SIZE_H)) ||
|
|
(frame_height > max(H264_MAX_SIZE_W, H264_MAX_SIZE_H))) {
|
|
dev_err(dev,
|
|
"%s width(%d) or height(%d) exceeds limits (%dx%d)\n",
|
|
pctx->name, frame_width, frame_height,
|
|
H264_MAX_SIZE_W, H264_MAX_SIZE_H);
|
|
pctx->frame_errors++;
|
|
return -EINVAL;
|
|
}
|
|
|
|
level = ctrls->level;
|
|
|
|
memset(td, 0, sizeof(struct hva_h264_td));
|
|
|
|
td->frame_width = frame_width;
|
|
td->frame_height = frame_height;
|
|
|
|
/* set frame alignment */
|
|
td->window_width = frame_width;
|
|
td->window_height = frame_height;
|
|
td->window_horizontal_offset = 0;
|
|
td->window_vertical_offset = 0;
|
|
|
|
td->first_picture_in_sequence = (!frame_num) ? 1 : 0;
|
|
|
|
/* pic_order_cnt_type hard coded to '2' as only I & P frames */
|
|
td->pic_order_cnt_type = 2;
|
|
|
|
/* useConstrainedIntraFlag set to false for better coding efficiency */
|
|
td->use_constrained_intra_flag = false;
|
|
td->brc_type = (ctrls->bitrate_mode == V4L2_MPEG_VIDEO_BITRATE_MODE_CBR)
|
|
? BRC_TYPE_CBR : BRC_TYPE_VBR;
|
|
|
|
td->entropy_coding_mode = (ctrls->entropy_mode == cavlc) ? CAVLC :
|
|
CABAC;
|
|
|
|
td->bit_rate = ctrls->bitrate;
|
|
|
|
/* set framerate, framerate = 1 n/ time per frame */
|
|
if (time_per_frame->numerator >= 536) {
|
|
/*
|
|
* due to a hardware bug, framerate denominator can't exceed
|
|
* 536 (BRC overflow). Compute nearest framerate
|
|
*/
|
|
td->framerate_den = 1;
|
|
td->framerate_num = (time_per_frame->denominator +
|
|
(time_per_frame->numerator >> 1) - 1) /
|
|
time_per_frame->numerator;
|
|
|
|
/*
|
|
* update bitrate to introduce a correction due to
|
|
* the new framerate
|
|
* new bitrate = (old bitrate * new framerate) / old framerate
|
|
*/
|
|
td->bit_rate /= time_per_frame->numerator;
|
|
td->bit_rate *= time_per_frame->denominator;
|
|
td->bit_rate /= td->framerate_num;
|
|
} else {
|
|
td->framerate_den = time_per_frame->numerator;
|
|
td->framerate_num = time_per_frame->denominator;
|
|
}
|
|
|
|
/* compute maximum bitrate depending on profile */
|
|
if (ctrls->profile >= V4L2_MPEG_VIDEO_H264_PROFILE_HIGH)
|
|
max_bitrate = h264_infos_list[level].max_bitrate *
|
|
H264_FACTOR_HIGH;
|
|
else
|
|
max_bitrate = h264_infos_list[level].max_bitrate *
|
|
H264_FACTOR_BASELINE;
|
|
|
|
/* check if bitrate doesn't exceed max size */
|
|
if (td->bit_rate > max_bitrate) {
|
|
dev_dbg(dev,
|
|
"%s bitrate (%d) larger than level and profile allow, clip to %d\n",
|
|
pctx->name, td->bit_rate, max_bitrate);
|
|
td->bit_rate = max_bitrate;
|
|
}
|
|
|
|
/* convert cpb_buffer_size in bits */
|
|
td->cpb_buffer_size = ctrls->cpb_size * 8000;
|
|
|
|
/* compute maximum cpb buffer size depending on profile */
|
|
if (ctrls->profile >= V4L2_MPEG_VIDEO_H264_PROFILE_HIGH)
|
|
max_cpb_buffer_size =
|
|
h264_infos_list[level].max_cpb_size * H264_FACTOR_HIGH;
|
|
else
|
|
max_cpb_buffer_size =
|
|
h264_infos_list[level].max_cpb_size * H264_FACTOR_BASELINE;
|
|
|
|
/* check if cpb buffer size doesn't exceed max size */
|
|
if (td->cpb_buffer_size > max_cpb_buffer_size) {
|
|
dev_dbg(dev,
|
|
"%s cpb size larger than level %d allows, clip to %d\n",
|
|
pctx->name, td->cpb_buffer_size, max_cpb_buffer_size);
|
|
td->cpb_buffer_size = max_cpb_buffer_size;
|
|
}
|
|
|
|
/* enable skipping in the Bitrate Controller */
|
|
td->brc_no_skip = 0;
|
|
|
|
/* initial delay */
|
|
if ((ctrls->bitrate_mode == V4L2_MPEG_VIDEO_BITRATE_MODE_CBR) &&
|
|
td->bit_rate)
|
|
td->delay = 1000 * (td->cpb_buffer_size / td->bit_rate);
|
|
else
|
|
td->delay = 0;
|
|
|
|
switch (frame->info.pixelformat) {
|
|
case V4L2_PIX_FMT_NV12:
|
|
td->sampling_mode = SAMPLING_MODE_NV12;
|
|
break;
|
|
case V4L2_PIX_FMT_NV21:
|
|
td->sampling_mode = SAMPLING_MODE_NV21;
|
|
break;
|
|
default:
|
|
dev_err(dev, "%s invalid source pixel format\n",
|
|
pctx->name);
|
|
pctx->frame_errors++;
|
|
return -EINVAL;
|
|
}
|
|
|
|
/*
|
|
* fill matrix color converter (RGB to YUV)
|
|
* Y = 0,299 R + 0,587 G + 0,114 B
|
|
* Cb = -0,1687 R -0,3313 G + 0,5 B + 128
|
|
* Cr = 0,5 R - 0,4187 G - 0,0813 B + 128
|
|
*/
|
|
td->rgb2_yuv_y_coeff = 0x12031008;
|
|
td->rgb2_yuv_u_coeff = 0x800EF7FB;
|
|
td->rgb2_yuv_v_coeff = 0x80FEF40E;
|
|
|
|
/* enable/disable transform mode */
|
|
td->transform_mode = ctrls->dct8x8;
|
|
|
|
/* encoder complexity fix to 2, ENCODE_I_16x16_I_NxN_P_16x16_P_WxH */
|
|
td->encoder_complexity = 2;
|
|
|
|
/* quant fix to 28, default VBR value */
|
|
td->quant = 28;
|
|
|
|
if (td->framerate_den == 0) {
|
|
dev_err(dev, "%s invalid framerate\n", pctx->name);
|
|
pctx->frame_errors++;
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* if automatic framerate, deactivate bitrate controller */
|
|
if (td->framerate_num == 0)
|
|
td->brc_type = 0;
|
|
|
|
/* compliancy fix to true */
|
|
td->strict_hrd_compliancy = 1;
|
|
|
|
/* set minimum & maximum quantizers */
|
|
td->qp_min = clamp_val(ctrls->qpmin, 0, 51);
|
|
td->qp_max = clamp_val(ctrls->qpmax, 0, 51);
|
|
|
|
td->addr_source_buffer = frame->paddr;
|
|
td->addr_fwd_ref_buffer = fwd_ref_frame->paddr;
|
|
td->addr_rec_buffer = loc_rec_frame->paddr;
|
|
|
|
td->addr_output_bitstream_end = (u32)stream->paddr + stream->size;
|
|
|
|
td->addr_output_bitstream_start = (u32)stream->paddr;
|
|
td->bitstream_offset = (((u32)stream->paddr & 0xF) << 3) &
|
|
BITSTREAM_OFFSET_MASK;
|
|
|
|
td->addr_param_out = (u32)ctx->task->paddr +
|
|
offsetof(struct hva_h264_task, po);
|
|
|
|
/* swap spatial and temporal context */
|
|
if (frame_num % 2) {
|
|
paddr = seq_info->paddr;
|
|
td->addr_spatial_context = ALIGN(paddr, 0x100);
|
|
paddr = seq_info->paddr + DATA_SIZE(frame_width,
|
|
frame_height);
|
|
td->addr_temporal_context = ALIGN(paddr, 0x100);
|
|
} else {
|
|
paddr = seq_info->paddr;
|
|
td->addr_temporal_context = ALIGN(paddr, 0x100);
|
|
paddr = seq_info->paddr + DATA_SIZE(frame_width,
|
|
frame_height);
|
|
td->addr_spatial_context = ALIGN(paddr, 0x100);
|
|
}
|
|
|
|
paddr = seq_info->paddr + 2 * DATA_SIZE(frame_width, frame_height);
|
|
|
|
td->addr_brc_in_out_parameter = ALIGN(paddr, 0x100);
|
|
|
|
paddr = td->addr_brc_in_out_parameter + BRC_DATA_SIZE;
|
|
td->addr_slice_header = ALIGN(paddr, 0x100);
|
|
td->addr_external_sw = ALIGN(addr_esram, 0x100);
|
|
|
|
addr_esram += SEARCH_WINDOW_BUFFER_MAX_SIZE(frame_width);
|
|
td->addr_local_rec_buffer = ALIGN(addr_esram, 0x100);
|
|
|
|
addr_esram += LOCAL_RECONSTRUCTED_BUFFER_MAX_SIZE(frame_width);
|
|
td->addr_lctx = ALIGN(addr_esram, 0x100);
|
|
|
|
addr_esram += CTX_MB_BUFFER_MAX_SIZE(max(frame_width, frame_height));
|
|
td->addr_cabac_context_buffer = ALIGN(addr_esram, 0x100);
|
|
|
|
if (!(frame_num % ctrls->gop_size)) {
|
|
td->picture_coding_type = PICTURE_CODING_TYPE_I;
|
|
stream->vbuf.flags |= V4L2_BUF_FLAG_KEYFRAME;
|
|
} else {
|
|
td->picture_coding_type = PICTURE_CODING_TYPE_P;
|
|
stream->vbuf.flags &= ~V4L2_BUF_FLAG_KEYFRAME;
|
|
}
|
|
|
|
/* fill the slice header part */
|
|
slice_header_vaddr = seq_info->vaddr + (td->addr_slice_header -
|
|
seq_info->paddr);
|
|
|
|
hva_h264_fill_slice_header(pctx, slice_header_vaddr, ctrls, frame_num,
|
|
&td->slice_header_size_in_bits,
|
|
&td->slice_header_offset0,
|
|
&td->slice_header_offset1,
|
|
&td->slice_header_offset2);
|
|
|
|
td->chroma_qp_index_offset = 2;
|
|
td->slice_synchro_enable = 0;
|
|
td->max_slice_number = 1;
|
|
|
|
/*
|
|
* check the sps/pps header size for key frame only
|
|
* sps/pps header was previously fill by libv4l
|
|
* during qbuf of stream buffer
|
|
*/
|
|
if ((stream->vbuf.flags == V4L2_BUF_FLAG_KEYFRAME) &&
|
|
(payload > MAX_SPS_PPS_SIZE)) {
|
|
dev_err(dev, "%s invalid sps/pps size %d\n", pctx->name,
|
|
payload);
|
|
pctx->frame_errors++;
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (stream->vbuf.flags != V4L2_BUF_FLAG_KEYFRAME)
|
|
payload = 0;
|
|
|
|
/* add SEI nal (video stereo info) */
|
|
if (ctrls->sei_fp && hva_h264_fill_sei_nal(pctx, SEI_STEREO_VIDEO_INFO,
|
|
(u8 *)stream->vaddr,
|
|
&payload)) {
|
|
dev_err(dev, "%s fail to get SEI nal\n", pctx->name);
|
|
pctx->frame_errors++;
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* fill size of non-VCL NAL units (SPS, PPS, filler and SEI) */
|
|
td->non_vcl_nalu_size = payload * 8;
|
|
|
|
/* compute bitstream offset & new start address of bitstream */
|
|
td->addr_output_bitstream_start += ((payload >> 4) << 4);
|
|
td->bitstream_offset += (payload - ((payload >> 4) << 4)) * 8;
|
|
|
|
stream->bytesused = payload;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static unsigned int hva_h264_get_stream_size(struct hva_h264_task *task)
|
|
{
|
|
struct hva_h264_po *po = &task->po;
|
|
|
|
return po->bitstream_size;
|
|
}
|
|
|
|
static u32 hva_h264_get_stuffing_bytes(struct hva_h264_task *task)
|
|
{
|
|
struct hva_h264_po *po = &task->po;
|
|
|
|
return po->stuffing_bits >> 3;
|
|
}
|
|
|
|
static int hva_h264_open(struct hva_ctx *pctx)
|
|
{
|
|
struct device *dev = ctx_to_dev(pctx);
|
|
struct hva_h264_ctx *ctx;
|
|
struct hva_dev *hva = ctx_to_hdev(pctx);
|
|
u32 frame_width = pctx->frameinfo.aligned_width;
|
|
u32 frame_height = pctx->frameinfo.aligned_height;
|
|
u32 size;
|
|
int ret;
|
|
|
|
/* check esram size necessary to encode a frame */
|
|
size = SEARCH_WINDOW_BUFFER_MAX_SIZE(frame_width) +
|
|
LOCAL_RECONSTRUCTED_BUFFER_MAX_SIZE(frame_width) +
|
|
CTX_MB_BUFFER_MAX_SIZE(max(frame_width, frame_height)) +
|
|
CABAC_CONTEXT_BUFFER_MAX_SIZE(frame_width);
|
|
|
|
if (hva->esram_size < size) {
|
|
dev_err(dev, "%s not enough esram (max:%d request:%d)\n",
|
|
pctx->name, hva->esram_size, size);
|
|
ret = -EINVAL;
|
|
goto err;
|
|
}
|
|
|
|
/* allocate context for codec */
|
|
ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
|
|
if (!ctx) {
|
|
ret = -ENOMEM;
|
|
goto err;
|
|
}
|
|
|
|
/* allocate sequence info buffer */
|
|
ret = hva_mem_alloc(pctx,
|
|
2 * DATA_SIZE(frame_width, frame_height) +
|
|
SLICE_HEADER_SIZE +
|
|
BRC_DATA_SIZE,
|
|
"hva sequence info",
|
|
&ctx->seq_info);
|
|
if (ret) {
|
|
dev_err(dev,
|
|
"%s failed to allocate sequence info buffer\n",
|
|
pctx->name);
|
|
goto err_ctx;
|
|
}
|
|
|
|
/* allocate reference frame buffer */
|
|
ret = hva_mem_alloc(pctx,
|
|
frame_width * frame_height * 3 / 2,
|
|
"hva reference frame",
|
|
&ctx->ref_frame);
|
|
if (ret) {
|
|
dev_err(dev, "%s failed to allocate reference frame buffer\n",
|
|
pctx->name);
|
|
goto err_seq_info;
|
|
}
|
|
|
|
/* allocate reconstructed frame buffer */
|
|
ret = hva_mem_alloc(pctx,
|
|
frame_width * frame_height * 3 / 2,
|
|
"hva reconstructed frame",
|
|
&ctx->rec_frame);
|
|
if (ret) {
|
|
dev_err(dev,
|
|
"%s failed to allocate reconstructed frame buffer\n",
|
|
pctx->name);
|
|
goto err_ref_frame;
|
|
}
|
|
|
|
/* allocate task descriptor */
|
|
ret = hva_mem_alloc(pctx,
|
|
sizeof(struct hva_h264_task),
|
|
"hva task descriptor",
|
|
&ctx->task);
|
|
if (ret) {
|
|
dev_err(dev,
|
|
"%s failed to allocate task descriptor\n",
|
|
pctx->name);
|
|
goto err_rec_frame;
|
|
}
|
|
|
|
pctx->priv = (void *)ctx;
|
|
|
|
return 0;
|
|
|
|
err_rec_frame:
|
|
hva_mem_free(pctx, ctx->rec_frame);
|
|
err_ref_frame:
|
|
hva_mem_free(pctx, ctx->ref_frame);
|
|
err_seq_info:
|
|
hva_mem_free(pctx, ctx->seq_info);
|
|
err_ctx:
|
|
devm_kfree(dev, ctx);
|
|
err:
|
|
pctx->sys_errors++;
|
|
return ret;
|
|
}
|
|
|
|
static int hva_h264_close(struct hva_ctx *pctx)
|
|
{
|
|
struct hva_h264_ctx *ctx = (struct hva_h264_ctx *)pctx->priv;
|
|
struct device *dev = ctx_to_dev(pctx);
|
|
|
|
if (ctx->seq_info)
|
|
hva_mem_free(pctx, ctx->seq_info);
|
|
|
|
if (ctx->ref_frame)
|
|
hva_mem_free(pctx, ctx->ref_frame);
|
|
|
|
if (ctx->rec_frame)
|
|
hva_mem_free(pctx, ctx->rec_frame);
|
|
|
|
if (ctx->task)
|
|
hva_mem_free(pctx, ctx->task);
|
|
|
|
devm_kfree(dev, ctx);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int hva_h264_encode(struct hva_ctx *pctx, struct hva_frame *frame,
|
|
struct hva_stream *stream)
|
|
{
|
|
struct hva_h264_ctx *ctx = (struct hva_h264_ctx *)pctx->priv;
|
|
struct hva_h264_task *task = (struct hva_h264_task *)ctx->task->vaddr;
|
|
u32 stuffing_bytes = 0;
|
|
int ret = 0;
|
|
|
|
ret = hva_h264_prepare_task(pctx, task, frame, stream);
|
|
if (ret)
|
|
goto err;
|
|
|
|
ret = hva_hw_execute_task(pctx, H264_ENC, ctx->task);
|
|
if (ret)
|
|
goto err;
|
|
|
|
pctx->stream_num++;
|
|
stream->bytesused += hva_h264_get_stream_size(task);
|
|
|
|
stuffing_bytes = hva_h264_get_stuffing_bytes(task);
|
|
|
|
if (stuffing_bytes)
|
|
hva_h264_fill_data_nal(pctx, stuffing_bytes,
|
|
(u8 *)stream->vaddr,
|
|
stream->size,
|
|
&stream->bytesused);
|
|
|
|
/* switch reference & reconstructed frame */
|
|
swap(ctx->ref_frame, ctx->rec_frame);
|
|
|
|
return 0;
|
|
err:
|
|
stream->bytesused = 0;
|
|
return ret;
|
|
}
|
|
|
|
const struct hva_enc nv12h264enc = {
|
|
.name = "H264(NV12)",
|
|
.pixelformat = V4L2_PIX_FMT_NV12,
|
|
.streamformat = V4L2_PIX_FMT_H264,
|
|
.max_width = H264_MAX_SIZE_W,
|
|
.max_height = H264_MAX_SIZE_H,
|
|
.open = hva_h264_open,
|
|
.close = hva_h264_close,
|
|
.encode = hva_h264_encode,
|
|
};
|
|
|
|
const struct hva_enc nv21h264enc = {
|
|
.name = "H264(NV21)",
|
|
.pixelformat = V4L2_PIX_FMT_NV21,
|
|
.streamformat = V4L2_PIX_FMT_H264,
|
|
.max_width = H264_MAX_SIZE_W,
|
|
.max_height = H264_MAX_SIZE_H,
|
|
.open = hva_h264_open,
|
|
.close = hva_h264_close,
|
|
.encode = hva_h264_encode,
|
|
};
|