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

Originally committed as revision 4216 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/indeo2.c

@@ -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;
 }
 

libavcodec/indeo2data.h

 #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] = {