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1 /* |
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2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * |
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16 */ |
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17 |
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18 |
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19 #ifndef _JPEG_DECODER_H_ |
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20 #define _JPEG_DECODER_H_ |
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21 |
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22 #include <stdint.h> |
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23 |
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24 #define JPEG_MARKER_STUFFED 0x00 |
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25 #define JPEG_MARKER_TEM 0x01 |
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26 #define JPEG_MARKER_RES 0x02 |
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27 |
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28 #define JPEG_MARKER_SOF_0 0xc0 |
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29 #define JPEG_MARKER_SOF_1 0xc1 |
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30 #define JPEG_MARKER_SOF_2 0xc2 |
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31 #define JPEG_MARKER_SOF_3 0xc3 |
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32 #define JPEG_MARKER_DEFINE_HUFFMAN_TABLES 0xc4 |
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33 #define JPEG_MARKER_SOF_5 0xc5 |
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34 #define JPEG_MARKER_SOF_6 0xc6 |
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35 #define JPEG_MARKER_SOF_7 0xc7 |
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36 #define JPEG_MARKER_JPG 0xc8 |
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37 #define JPEG_MARKER_SOF_9 0xc9 |
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38 #define JPEG_MARKER_SOF_10 0xca |
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39 #define JPEG_MARKER_SOF_11 0xcb |
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40 #define JPEG_MARKER_DEFINE_ARITHMETIC_CONDITIONING 0xcc |
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41 #define JPEG_MARKER_SOF_13 0xcd |
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42 #define JPEG_MARKER_SOF_14 0xce |
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43 #define JPEG_MARKER_SOF_15 0xcf |
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44 |
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45 #define JPEG_MARKER_RST_0 0xd0 |
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46 #define JPEG_MARKER_RST_1 0xd1 |
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47 #define JPEG_MARKER_RST_2 0xd2 |
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48 #define JPEG_MARKER_RST_3 0xd3 |
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49 #define JPEG_MARKER_RST_4 0xd4 |
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50 #define JPEG_MARKER_RST_5 0xd5 |
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51 #define JPEG_MARKER_RST_6 0xd6 |
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52 #define JPEG_MARKER_RST_7 0xd7 |
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53 |
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54 #define JPEG_MARKER_SOI 0xd8 |
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55 #define JPEG_MARKER_EOI 0xd9 |
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56 #define JPEG_MARKER_SOS 0xda |
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57 #define JPEG_MARKER_DEFINE_QUANTIZATION_TABLES 0xdb |
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58 #define JPEG_MARKER_DNL 0xdc |
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59 #define JPEG_MARKER_DEFINE_RESTART_INTERVAL 0xdd |
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60 #define JPEG_MARKER_DHP 0xde |
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61 #define JPEG_MARKER_EXP 0xdf |
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62 #define JPEG_MARKER_APP(x) (0xe0 + (x)) |
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63 #define JPEG_MARKER_JPG_(x) (0xf0 + (x)) |
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64 #define JPEG_MARKER_COMMENT 0xfe |
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65 |
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66 #define JPEG_MARKER_JFIF JPEG_MARKER_APP(0) |
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67 |
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68 #define JPEG_MARKER_IS_START_OF_FRAME(x) ((x)>=0xc0 && (x) <= 0xcf && (x)!=0xc4 && (x)!=0xc8 && (x)!=0xcc) |
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69 #define JPEG_MARKER_IS_APP(x) ((x)>=0xe0 && (x) <= 0xef) |
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70 #define JPEG_MARKER_IS_RESET(x) ((x)>=0xd0 && (x)<=0xd7) |
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71 |
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72 |
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73 typedef struct _JpegDecoder JpegDecoder; |
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74 |
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75 |
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76 JpegDecoder *jpeg_decoder_new(void); |
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77 void jpeg_decoder_free(JpegDecoder *dec); |
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78 int jpeg_decoder_addbits(JpegDecoder *dec, unsigned char *data, unsigned int len); |
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79 int jpeg_decoder_decode (JpegDecoder *dec); |
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80 int jpeg_decoder_get_image_size(JpegDecoder *dec, int *width, int *height); |
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81 int jpeg_decoder_get_component_size(JpegDecoder *dec, int id, |
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82 int *width, int *height); |
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83 int jpeg_decoder_get_component_subsampling(JpegDecoder *dec, int id, |
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84 int *h_subsample, int *v_subsample); |
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85 int jpeg_decoder_get_component_ptr(JpegDecoder *dec, int id, |
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86 unsigned char **image, int *rowstride); |
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87 |
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88 unsigned char *jpeg_decoder_get_argb_image (JpegDecoder *dec); |
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89 int jpeg_decode_argb (uint8_t *data, int length, uint32_t **image, |
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90 int *width, int *height); |
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91 |
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92 #endif |
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93 |