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| author | Guy Harris <guy@alum.mit.edu> | 2006-09-02 06:39:43 +0000 |
|---|---|---|
| committer | Guy Harris <guy@alum.mit.edu> | 2006-09-02 06:39:43 +0000 |
| commit | 0ec3e5661f5c12731a69a15d4a1d1ef6ca19aa66 (patch) | |
| tree | 833928513cb31527c5bd1c334f234af05cef8dd6 /codecs/G711a | |
| parent | e7135c63bb5a3b13b02a5513cae346d68f209bd5 (diff) | |
| download | wireshark-0ec3e5661f5c12731a69a15d4a1d1ef6ca19aa66.tar.gz | |
Move the codecs into a top-level "codecs" subdirectory; there's no
guarantee that all programs using the codecs will necessarily be using
GTK+.
svn path=/trunk/; revision=19117
Diffstat (limited to 'codecs/G711a')
| -rw-r--r-- | codecs/G711a/G711adecode.c | 19 | ||||
| -rw-r--r-- | codecs/G711a/G711adecode.h | 3 | ||||
| -rw-r--r-- | codecs/G711a/G711atable.h | 38 |
3 files changed, 60 insertions, 0 deletions
diff --git a/codecs/G711a/G711adecode.c b/codecs/G711a/G711adecode.c new file mode 100644 index 0000000000..b427250a64 --- /dev/null +++ b/codecs/G711a/G711adecode.c @@ -0,0 +1,19 @@ +#include <glib.h> +#include "G711adecode.h" +#include "G711atable.h" + +int +decodeG711a(void *input, int inputSizeBytes, void *output, int *outputSizeBytes) +{ + guint8 *dataIn = (guint8 *)input; + gint16 *dataOut = (gint16 *)output; + int i; + + for (i=0; i<inputSizeBytes; i++) + { + dataOut[i] = alaw_exp_table[dataIn[i]]; + } + *outputSizeBytes = inputSizeBytes * 2; + return 0; +} + diff --git a/codecs/G711a/G711adecode.h b/codecs/G711a/G711adecode.h new file mode 100644 index 0000000000..779203a212 --- /dev/null +++ b/codecs/G711a/G711adecode.h @@ -0,0 +1,3 @@ + +decodeG711a(void *input, int inputSizeBytes, void *output, int *outputSizeBytes); + diff --git a/codecs/G711a/G711atable.h b/codecs/G711a/G711atable.h new file mode 100644 index 0000000000..a8d8999d3f --- /dev/null +++ b/codecs/G711a/G711atable.h @@ -0,0 +1,38 @@ + + +gint16 alaw_exp_table[256] = { + -5504, -5248, -6016, -5760, -4480, -4224, -4992, -4736, + -7552, -7296, -8064, -7808, -6528, -6272, -7040, -6784, + -2752, -2624, -3008, -2880, -2240, -2112, -2496, -2368, + -3776, -3648, -4032, -3904, -3264, -3136, -3520, -3392, + -22016,-20992,-24064,-23040,-17920,-16896,-19968,-18944, + -30208,-29184,-32256,-31232,-26112,-25088,-28160,-27136, + -11008,-10496,-12032,-11520, -8960, -8448, -9984, -9472, + -15104,-14592,-16128,-15616,-13056,-12544,-14080,-13568, + -344, -328, -376, -360, -280, -264, -312, -296, + -472, -456, -504, -488, -408, -392, -440, -424, + -88, -72, -120, -104, -24, -8, -56, -40, + -216, -200, -248, -232, -152, -136, -184, -168, + -1376, -1312, -1504, -1440, -1120, -1056, -1248, -1184, + -1888, -1824, -2016, -1952, -1632, -1568, -1760, -1696, + -688, -656, -752, -720, -560, -528, -624, -592, + -944, -912, -1008, -976, -816, -784, -880, -848, + 5504, 5248, 6016, 5760, 4480, 4224, 4992, 4736, + 7552, 7296, 8064, 7808, 6528, 6272, 7040, 6784, + 2752, 2624, 3008, 2880, 2240, 2112, 2496, 2368, + 3776, 3648, 4032, 3904, 3264, 3136, 3520, 3392, + 22016, 20992, 24064, 23040, 17920, 16896, 19968, 18944, + 30208, 29184, 32256, 31232, 26112, 25088, 28160, 27136, + 11008, 10496, 12032, 11520, 8960, 8448, 9984, 9472, + 15104, 14592, 16128, 15616, 13056, 12544, 14080, 13568, + 344, 328, 376, 360, 280, 264, 312, 296, + 472, 456, 504, 488, 408, 392, 440, 424, + 88, 72, 120, 104, 24, 8, 56, 40, + 216, 200, 248, 232, 152, 136, 184, 168, + 1376, 1312, 1504, 1440, 1120, 1056, 1248, 1184, + 1888, 1824, 2016, 1952, 1632, 1568, 1760, 1696, + 688, 656, 752, 720, 560, 528, 624, 592, + 944, 912, 1008, 976, 816, 784, 880, 848}; + + + |