/*
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*
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* Copyright 2015 Rockchip Electronics Co. LTD
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef __JPEGD_PARSER_H__
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#define __JPEGD_PARSER_H__
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#include <limits.h>
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#include <string.h>
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#include "mpp_bitread.h"
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#include "jpegd_syntax.h"
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#define JPEG_IDENTIFIER(a, b, c, d) \
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((RK_U32)(d) | ((RK_U32)(c) << 8) | \
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((RK_U32)(b) << 16) | ((RK_U32)(a) << 24))
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/* JPEG marker codes */
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enum JpegMarker {
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/* start of frame */
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SOF0 = 0xc0, /* baseline */
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SOF1 = 0xc1, /* extended sequential, huffman */
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SOF2 = 0xc2, /* progressive, huffman */
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SOF3 = 0xc3, /* lossless, huffman */
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SOF5 = 0xc5, /* differential sequential, huffman */
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SOF6 = 0xc6, /* differential progressive, huffman */
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SOF7 = 0xc7, /* differential lossless, huffman */
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JPG = 0xc8, /* reserved for JPEG extension */
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SOF9 = 0xc9, /* extended sequential, arithmetic */
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SOF10 = 0xca, /* progressive, arithmetic */
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SOF11 = 0xcb, /* lossless, arithmetic */
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SOF13 = 0xcd, /* differential sequential, arithmetic */
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SOF14 = 0xce, /* differential progressive, arithmetic */
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SOF15 = 0xcf, /* differential lossless, arithmetic */
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DHT = 0xc4, /* define huffman tables */
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DAC = 0xcc, /* define arithmetic-coding conditioning */
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/* restart with modulo 8 count "m" */
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RST0 = 0xd0,
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RST1 = 0xd1,
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RST2 = 0xd2,
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RST3 = 0xd3,
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RST4 = 0xd4,
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RST5 = 0xd5,
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RST6 = 0xd6,
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RST7 = 0xd7,
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SOI = 0xd8, /* start of image */
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EOI = 0xd9, /* end of image */
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SOS = 0xda, /* start of scan */
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DQT = 0xdb, /* define quantization tables */
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DNL = 0xdc, /* define number of lines */
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DRI = 0xdd, /* define restart interval */
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DHP = 0xde, /* define hierarchical progression */
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EXP = 0xdf, /* expand reference components */
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APP0 = 0xe0,
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APP1 = 0xe1,
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APP2 = 0xe2,
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APP3 = 0xe3,
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APP4 = 0xe4,
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APP5 = 0xe5,
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APP6 = 0xe6,
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APP7 = 0xe7,
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APP8 = 0xe8,
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APP9 = 0xe9,
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APP10 = 0xea,
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APP11 = 0xeb,
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APP12 = 0xec,
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APP13 = 0xed,
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APP14 = 0xee,
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APP15 = 0xef,
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JPG0 = 0xf0,
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JPG1 = 0xf1,
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JPG2 = 0xf2,
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JPG3 = 0xf3,
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JPG4 = 0xf4,
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JPG5 = 0xf5,
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JPG6 = 0xf6,
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SOF48 = 0xf7, ///< JPEG-LS
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LSE = 0xf8, ///< JPEG-LS extension parameters
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JPG9 = 0xf9,
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JPG10 = 0xfa,
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JPG11 = 0xfb,
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JPG12 = 0xfc,
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JPG13 = 0xfd,
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COM = 0xfe, /* comment */
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TEM = 0x01, /* temporary private use for arithmetic coding */
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/* 0x02 -> 0xbf reserved */
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};
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typedef struct JpegdCtx {
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MppBufSlots packet_slots;
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MppBufSlots frame_slots;
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/* slot index for output */
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RK_S32 frame_slot_index;
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RK_U8 *recv_buffer;
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/* input stream length or buffer size */
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RK_U32 streamLength;
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/* input stream buffer size */
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RK_U32 bufferSize;
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MppFrameFormat output_fmt;
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MppPacket input_packet;
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MppFrame output_frame;
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RK_S64 pts;
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RK_U32 eos;
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RK_U32 input_jpeg_count;
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/* 0 - no need to copy stream; 1 - need to copy */
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RK_S32 copy_flag;
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/* 0 - just scan parts of markers; 1 - scan all markers */
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RK_S32 scan_all_marker;
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RK_U8 *buffer;
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RK_U32 buf_size;
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/* current start code */
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RK_S32 start_code;
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/* bit read context */
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BitReadCtx_t *bit_ctx;
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JpegdSyntax *syntax;
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} JpegdCtx;
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#endif /* __JPEGD_PARSER_H__ */
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