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move indeo5 scan patterns into ivi_common.c

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so those can be shared by indeo4.

Originally committed as revision 23335 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Maxim Poliakovski 2010-05-26 13:25:16 +00:00
parent 93ebfeea90
commit 220f2bd9c5
4 changed files with 42 additions and 27 deletions
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8
libavcodec/indeo5.c
View File

@ -185,25 +185,25 @@ static int decode_gop_header(IVI5DecContext *ctx, AVCodecContext *avctx)
case 1:
band->inv_transform = ff_ivi_row_slant8;
band->dc_transform = ff_ivi_dc_row_slant;
band->scan = ivi5_scans8x8[0];
band->scan = ivi_vertical_scan_8x8;
break;
case 2:
band->inv_transform = ff_ivi_col_slant8;
band->dc_transform = ff_ivi_dc_col_slant;
band->scan = ivi5_scans8x8[1];
band->scan = ivi_horizontal_scan_8x8;
break;
case 3:
band->inv_transform = ff_ivi_put_pixels_8x8;
band->dc_transform = ff_ivi_put_dc_pixel_8x8;
band->scan = ivi5_scans8x8[1];
band->scan = ivi_horizontal_scan_8x8;
break;
case 4:
band->inv_transform = ff_ivi_inverse_slant_4x4;
band->dc_transform = ff_ivi_dc_slant_2d;
band->scan = ivi5_scan4x4;
band->scan = ivi_direct_scan_4x4;
break;
}

23
libavcodec/indeo5data.h
View File

@ -37,29 +37,6 @@ static const uint8_t ivi5_common_pic_sizes[30] = {
176, 60, 20, 15, 22, 18, 0, 0, 0, 0, 0, 0
};
/**
* Indeo5 8x8 scan (zigzag) patterns
*/
static const uint8_t ivi5_scans8x8[2][64] = {
{0, 8, 16, 24, 32, 40, 48, 56, 1, 9, 17, 25, 33, 41, 49, 57,
2, 10, 18, 26, 34, 42, 50, 58, 3, 11, 19, 27, 35, 43, 51, 59,
4, 12, 20, 28, 36, 44, 52, 60, 5, 13, 21, 29, 37, 45, 53, 61,
6, 14, 22, 30, 38, 46, 54, 62, 7, 15, 23, 31, 39, 47, 55, 63
},
{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63
}
};
/**
* Indeo5 4x4 scan (zigzag) pattern
*/
static const uint8_t ivi5_scan4x4[16] = {
0, 1, 4, 8, 5, 2, 3, 6, 9, 12, 13, 10, 7, 11, 14, 15
};
/**
* Indeo5 dequantization matrixes consist of two tables: base table

30
libavcodec/ivi_common.c
View File

@ -642,6 +642,36 @@ const IVIHuffDesc ff_ivi_blk_huff_desc[8] = {
};
/**
* Scan patterns shared between indeo4 and indeo5
*/
const uint8_t ivi_vertical_scan_8x8[64] = {
0, 8, 16, 24, 32, 40, 48, 56,
1, 9, 17, 25, 33, 41, 49, 57,
2, 10, 18, 26, 34, 42, 50, 58,
3, 11, 19, 27, 35, 43, 51, 59,
4, 12, 20, 28, 36, 44, 52, 60,
5, 13, 21, 29, 37, 45, 53, 61,
6, 14, 22, 30, 38, 46, 54, 62,
7, 15, 23, 31, 39, 47, 55, 63
};
const uint8_t ivi_horizontal_scan_8x8[64] = {
0, 1, 2, 3, 4, 5, 6, 7,
8, 9, 10, 11, 12, 13, 14, 15,
16, 17, 18, 19, 20, 21, 22, 23,
24, 25, 26, 27, 28, 29, 30, 31,
32, 33, 34, 35, 36, 37, 38, 39,
40, 41, 42, 43, 44, 45, 46, 47,
48, 49, 50, 51, 52, 53, 54, 55,
56, 57, 58, 59, 60, 61, 62, 63
};
const uint8_t ivi_direct_scan_4x4[16] = {
0, 1, 4, 8, 5, 2, 3, 6, 9, 12, 13, 10, 7, 11, 14, 15
};
/**
* Run-value (RLE) tables.
*/

8
libavcodec/ivi_common.h
View File

@ -67,6 +67,14 @@ extern VLC ff_ivi_mb_vlc_tabs [8]; ///< static macroblock Huffman tables
extern VLC ff_ivi_blk_vlc_tabs[8]; ///< static block Huffman tables
/**
* Common scan patterns (defined in ivi_common.c)
*/
extern const uint8_t ivi_vertical_scan_8x8[64];
extern const uint8_t ivi_horizontal_scan_8x8[64];
extern const uint8_t ivi_direct_scan_4x4[16];
/**
* run-value (RLE) table descriptor
*/