diff options
Diffstat (limited to 'examples/jpeg/jpeg.h')
| -rw-r--r-- | examples/jpeg/jpeg.h | 52 |
1 files changed, 51 insertions, 1 deletions
diff --git a/examples/jpeg/jpeg.h b/examples/jpeg/jpeg.h index fac03bc..de6b235 100644 --- a/examples/jpeg/jpeg.h +++ b/examples/jpeg/jpeg.h @@ -2,13 +2,63 @@ #ifndef _JPEG_DECODER_H_ #define _JPEG_DECODER_H_ + +#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_parse(JpegDecoder *dec); +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); |