#ifndef _JPEG_DECODER_H_ #define _JPEG_DECODER_H_ #include #define JPEG_MARKER_STUFFED 0x00 #define JPEG_MARKER_TEM 0x01 #define JPEG_MARKER_RES 0x02 #define JPEG_MARKER_SOF_0 0xc0 #define JPEG_MARKER_SOF_1 0xc1 #define JPEG_MARKER_SOF_2 0xc2 #define JPEG_MARKER_SOF_3 0xc3 #define JPEG_MARKER_DEFINE_HUFFMAN_TABLES 0xc4 #define JPEG_MARKER_SOF_5 0xc5 #define JPEG_MARKER_SOF_6 0xc6 #define JPEG_MARKER_SOF_7 0xc7 #define JPEG_MARKER_JPG 0xc8 #define JPEG_MARKER_SOF_9 0xc9 #define JPEG_MARKER_SOF_10 0xca #define JPEG_MARKER_SOF_11 0xcb #define JPEG_MARKER_DEFINE_ARITHMETIC_CONDITIONING 0xcc #define JPEG_MARKER_SOF_13 0xcd #define JPEG_MARKER_SOF_14 0xce #define JPEG_MARKER_SOF_15 0xcf #define JPEG_MARKER_RST_0 0xd0 #define JPEG_MARKER_RST_1 0xd1 #define JPEG_MARKER_RST_2 0xd2 #define JPEG_MARKER_RST_3 0xd3 #define JPEG_MARKER_RST_4 0xd4 #define JPEG_MARKER_RST_5 0xd5 #define JPEG_MARKER_RST_6 0xd6 #define JPEG_MARKER_RST_7 0xd7 #define JPEG_MARKER_SOI 0xd8 #define JPEG_MARKER_EOI 0xd9 #define JPEG_MARKER_SOS 0xda #define JPEG_MARKER_DEFINE_QUANTIZATION_TABLES 0xdb #define JPEG_MARKER_DNL 0xdc #define JPEG_MARKER_DEFINE_RESTART_INTERVAL 0xdd #define JPEG_MARKER_DHP 0xde #define JPEG_MARKER_EXP 0xdf #define JPEG_MARKER_APP(x) (0xe0 + (x)) #define JPEG_MARKER_JPG_(x) (0xf0 + (x)) #define JPEG_MARKER_COMMENT 0xfe #define JPEG_MARKER_JFIF JPEG_MARKER_APP(0) #define JPEG_MARKER_IS_START_OF_FRAME(x) ((x)>=0xc0 && (x) <= 0xcf && (x)!=0xc4 && (x)!=0xc8 && (x)!=0xcc) #define JPEG_MARKER_IS_APP(x) ((x)>=0xe0 && (x) <= 0xef) #define JPEG_MARKER_IS_RESET(x) ((x)>=0xd0 && (x)<=0xd7) typedef struct _JpegDecoder JpegDecoder; JpegDecoder *jpeg_decoder_new(void); void jpeg_decoder_free(JpegDecoder *dec); int jpeg_decoder_addbits(JpegDecoder *dec, unsigned char *data, unsigned int len); int jpeg_decoder_decode (JpegDecoder *dec); int jpeg_decoder_get_image_size(JpegDecoder *dec, int *width, int *height); int jpeg_decoder_get_component_size(JpegDecoder *dec, int id, int *width, int *height); int jpeg_decoder_get_component_subsampling(JpegDecoder *dec, int id, int *h_subsample, int *v_subsample); int jpeg_decoder_get_component_ptr(JpegDecoder *dec, int id, unsigned char **image, int *rowstride); unsigned char *jpeg_decoder_get_argb_image (JpegDecoder *dec); int jpeg_decode_argb (uint8_t *data, int length, uint32_t **image, int *width, int *height); #endif