143 lines
4.1 KiB
C
143 lines
4.1 KiB
C
/*****************************************************************
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>file name : lib/system/cpu/dv16/video-dev/jpeg/jpeg_decoder.h
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>author : lichao
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>create time : Thu 08 Jun 2017 04:12:49 PM HKT
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*****************************************************************/
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#ifndef _JPEG_DECODER_H_
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#define _JPEG_DECODER_H_
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#include "typedef.h"
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#include "spinlock.h"
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#include "jpeg_codec.h"
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extern u16 QT_TBL[0x80];
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extern u16 STD_HUFFMAN_TBL[258];
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#define QTAB_ADDR ((s16 *)(QT_TBL))
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#define HTAB_DC0_ADDR ((u16 *)((u8*)STD_HUFFMAN_TBL)) // 0x30
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#define HTAB_AC0_ADDR ((u16 *)((u8*)STD_HUFFMAN_TBL + 0x30)) // 0xd2
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#define HTAB_DC1_ADDR ((u16 *)((u8*)STD_HUFFMAN_TBL + 0x30 + 0xd2)) // 0x30
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#define HTAB_AC1_ADDR ((u16 *)((u8*)STD_HUFFMAN_TBL + 0x30 + 0xd2 + 0x30)) // 0xd2
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enum std_markers {
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DQT = 0xDB,
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SOF = 0xC0,
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DHT = 0xC4,
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SOI = 0xD8,
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SOS = 0xDA,
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RST = 0xD0,
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RST7 = 0xD7,
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EOI = 0xD9,
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DRI = 0xDD,
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APP0 = 0xE0,
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};
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struct decoder_info {
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u8 *data_out;
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u32 cur_pos;
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u16 x_pos;
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u16 y_pos;
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u16 x;
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u16 y;
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u16 old_x;
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u16 old_y;
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u16 old_x_mcu_num;
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u16 old_y_mcu_num;
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u16 x_mcu_num;
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u16 y_mcu_num;
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u16 x_mcu_cnt;
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u16 y_mcu_cnt;
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u8 samp_Y;
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u8 htab_Y;
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u8 htab_Cr;
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u8 htab_Cb;
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u8 qtab_Y;
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u8 qtab_Cr;
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u8 qtab_Cb;
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u8 y_cnt;
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};
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struct jpeg_decoder_fd {
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void *parent;
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struct decoder_info info;
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struct jpeg_yuv yuv[2];
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u32 static_yuv_size;
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u8 *static_yuv_addr;
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u32 mcu_num;
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u32 mcu_len;
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u32 head_len;
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u8 *stream;
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u8 *stream_alige4byte;
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u8 *stream_begin;
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u8 *stream_end;
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u32 bits_cnt;
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spinlock_t lock;
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volatile u8 active;
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u8 bits_mode;
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u8 dec_query_mode;
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u8 mode;
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u8 old_mode;
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u8 state;
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u8 yuv_type;
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u8 obuf_index;
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u8 manual_en;//control
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u8 frame_end;
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u8 last_rst_marker_seen;
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u8 DRI_enable;
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u8 next_rst;
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u32 next_rst_bits_cnt;
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u32 restart_interval;
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u32 rst_mcu_cnt;
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u32 frame_num;
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void *priv;
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int (*decoder_yuv_out)(void *priv, void *arg);
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int (*reset_output)(void *priv);
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u8 *fb;
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int cb_ylen;
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int cb_ulen;
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int cb_vlen;
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struct list_head entry;
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void *event_priv;
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int (*event_handler)(void *priv, enum jpg_dec_event event, void *arg);
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OS_SEM sem_bits;
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};
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int jpeg_decoder_init(struct jpeg_decoder_fd *fd, void *arg);
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int jpeg_decoder_reset_param(struct jpeg_decoder_fd *fd, void *arg);
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int jpeg_decoder_close(void *_fd);
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int jpeg_decoder_reset(void *_fd, void *arg);
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int jpeg_parse_header(void *_fd, void *info, u8 *buf, int len);
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int jpeg_decoder_start(void *_fd, u8 *jframe, u32 len, u8 manual_en);
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int jpeg_decoder_manual_start(void *_fd);
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int jpeg_decoder_release(void *_fd);
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int jpeg_decoder_change_omode(void *_fd, u8 *obuf, u8 omode);
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int jpeg_decoder_set_yuv(void *_fd, void *yuv_addr, u32 len);
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int decoder_bits_irq_handler(struct jpeg_decoder_fd *fd);
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int decoder_mcu_irq_handler(struct jpeg_decoder_fd *fd);
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int jpeg_decoder_input_data(void *_fd, void *data, int len);
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int jpeg_decoder_set_event_handler(void *_fd, void *priv,
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int (*handler)(void *, enum jpg_dec_event, void *));
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//subdevice_djpeg.c API
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void *jpg_dec_open(struct video_format *f);
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int jpg_dec_get_s_attr(void *_fh, struct jpg_dec_s_attr *attr);
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int jpg_dec_set_yuv(void *_fh, void *yuv, u32 len);//yuv420/422图片的yuv长度：(w*16*3/2+64)*2以上，yuv422/444图片的yuv长度：(w*8*3/2+64)*2以上
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int jpg_dec_set_s_attr(void *_fh, struct jpg_dec_s_attr *attr);
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int jpg_dec_set_scaler_handler(void *_fh, void *priv,
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int (*handler)(void *, struct image_scale_data *));
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int jpg_dec_set_output_handler(void *_fh, void *priv,
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int (*handler)(void *, struct YUV_frame_data *));
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int jpg_dec_set_event_handler(void *_fh, void *priv,
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int (*handler)(void *, enum jpg_dec_event, struct jpg_dec_mem *));
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int jpg_dec_start(void *_fh);
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int jpg_dec_stop(void *_fh);
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int jpg_dec_input_data(void *_fh, void *data, u32 len);
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int jpg_dec_close(void *_fh);
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#endif
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