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support the LE reader, so it can be tested a little

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Originally committed as revision 4216 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2005-05-11 01:50:46 +00:00
parent cea27ac714
commit ef56de328f
2 changed files with 48 additions and 5 deletions
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14
libavcodec/indeo2.c
View File

@ -22,7 +22,7 @@
* @file indeo2.c
* Intel Indeo 2 decoder.
*/
#define ALT_BITSTREAM_READER_LE
#include "avcodec.h"
#include "bitstream.h"
#include "indeo2data.h"
@ -156,10 +156,10 @@ static int ir2_decode_frame(AVCodecContext *avctx,
s->decode_delta = buf[18];
/* decide whether frame uses deltas or not */
#ifndef ALT_BITSTREAM_READER_LE
for (i = 0; i < buf_size; i++)
buf[i] = ff_reverse[buf[i]];
#endif
start = 48; /* hardcoded for now */
init_get_bits(&s->gb, buf + start, buf_size - start);
@ -198,8 +198,12 @@ static int ir2_decode_init(AVCodecContext *avctx){
if (!ir2_vlc.table)
init_vlc(&ir2_vlc, CODE_VLC_BITS, IR2_CODES,
&ir2_codes[0][1], 4, 2,
&ir2_codes[0][0], 4, 2, 1);
#ifdef ALT_BITSTREAM_READER_LE
&ir2_codes[0][0], 4, 2, INIT_VLC_USE_STATIC | INIT_VLC_LE);
#else
&ir2_codes[0][0], 4, 2, INIT_VLC_USE_STATIC);
#endif
return 0;
}

39
libavcodec/indeo2data.h
View File

@ -1,5 +1,43 @@
#define IR2_CODES 143
static const uint16_t ir2_codes[IR2_CODES][2] = {
#ifdef ALT_BITSTREAM_READER_LE
{0x0000, 3}, {0x0004, 3}, {0x0006, 3}, {0x0001, 5},
{0x0009, 5}, {0x0019, 5}, {0x000D, 5}, {0x001D, 5},
{0x0023, 6}, {0x0013, 6}, {0x0033, 6}, {0x000B, 6},
{0x002B, 6}, {0x001B, 6}, {0x0007, 8}, {0x0087, 8},
{0x0027, 8}, {0x00A7, 8}, {0x0067, 8}, {0x00E7, 8},
{0x0097, 8}, {0x0057, 8}, {0x0037, 8}, {0x00B7, 8},
{0x00F7, 8}, {0x000F, 9}, {0x008F, 9}, {0x018F, 9},
{0x014F, 9}, {0x00CF, 9}, {0x002F, 9}, {0x012F, 9},
{0x01AF, 9}, {0x006F, 9}, {0x00EF, 9}, {0x01EF, 9},
{0x001F, 10}, {0x021F, 10}, {0x011F, 10}, {0x031F, 10},
{0x009F, 10}, {0x029F, 10}, {0x019F, 10}, {0x039F, 10},
{0x005F, 10}, {0x025F, 10}, {0x015F, 10}, {0x035F, 10},
{0x00DF, 10}, {0x02DF, 10}, {0x01DF, 10}, {0x03DF, 10},
{0x003F, 13}, {0x103F, 13}, {0x083F, 13}, {0x183F, 13},
{0x043F, 13}, {0x143F, 13}, {0x0C3F, 13}, {0x1C3F, 13},
{0x023F, 13}, {0x123F, 13}, {0x0A3F, 13}, {0x1A3F, 13},
{0x063F, 13}, {0x163F, 13}, {0x0E3F, 13}, {0x1E3F, 13},
{0x013F, 13}, {0x113F, 13}, {0x093F, 13}, {0x193F, 13},
{0x053F, 13}, {0x153F, 13}, {0x0D3F, 13}, {0x1D3F, 13},
{0x033F, 13}, {0x133F, 13}, {0x0B3F, 13}, {0x1B3F, 13},
{0x073F, 13}, {0x173F, 13}, {0x0F3F, 13}, {0x1F3F, 13},
{0x00BF, 13}, {0x10BF, 13}, {0x08BF, 13}, {0x18BF, 13},
{0x04BF, 13}, {0x14BF, 13}, {0x0CBF, 13}, {0x1CBF, 13},
{0x02BF, 13}, {0x12BF, 13}, {0x0ABF, 13}, {0x1ABF, 13},
{0x06BF, 13}, {0x16BF, 13}, {0x0EBF, 13}, {0x1EBF, 13},
{0x01BF, 13}, {0x11BF, 13}, {0x09BF, 13}, {0x19BF, 13},
{0x05BF, 13}, {0x15BF, 13}, {0x0DBF, 13}, {0x1DBF, 13},
{0x03BF, 13}, {0x13BF, 13}, {0x0BBF, 13}, {0x1BBF, 13},
{0x07BF, 13}, {0x17BF, 13}, {0x0FBF, 13}, {0x1FBF, 13},
{0x007F, 14}, {0x207F, 14}, {0x107F, 14}, {0x307F, 14},
{0x087F, 14}, {0x287F, 14}, {0x187F, 14}, {0x387F, 14},
{0x047F, 14}, {0x247F, 14}, {0x147F, 14}, {0x0002, 3},
{0x0011, 5}, {0x0005, 5}, {0x0015, 5}, {0x0003, 6},
{0x003B, 6}, {0x0047, 8}, {0x00C7, 8}, {0x0017, 8},
{0x00D7, 8}, {0x0077, 8}, {0x010F, 9}, {0x004F, 9},
{0x01CF, 9}, {0x00AF, 9}, {0x016F, 9},
#else
{0x0000, 3}, {0x0001, 3}, {0x0003, 3}, {0x0010, 5},
{0x0012, 5}, {0x0013, 5}, {0x0016, 5}, {0x0017, 5},
{0x0031, 6}, {0x0032, 6}, {0x0033, 6}, {0x0034, 6},
@ -36,6 +74,7 @@ static const uint16_t ir2_codes[IR2_CODES][2] = {
{0x0037, 6}, {0x00E2, 8}, {0x00E3, 8}, {0x00E8, 8},
{0x00EB, 8}, {0x00EE, 8}, {0x01E1, 9}, {0x01E4, 9},
{0x01E7, 9}, {0x01EA, 9}, {0x01ED, 9}
#endif
};
static const uint8_t ir2_luma_table[256] = {