diff options
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/G711u | |
parent | e7135c63bb5a3b13b02a5513cae346d68f209bd5 (diff) |
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/G711u')
-rw-r--r-- | codecs/G711u/G711udecode.c | 19 | ||||
-rw-r--r-- | codecs/G711u/G711udecode.h | 5 | ||||
-rw-r--r-- | codecs/G711u/G711utable.h | 38 |
3 files changed, 62 insertions, 0 deletions
diff --git a/codecs/G711u/G711udecode.c b/codecs/G711u/G711udecode.c new file mode 100644 index 0000000000..2ac3c8fd85 --- /dev/null +++ b/codecs/G711u/G711udecode.c @@ -0,0 +1,19 @@ +#include <glib.h> +#include "G711udecode.h" +#include "G711utable.h" + +int +decodeG711u(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] = ulaw_exp_table[dataIn[i]]; + } + *outputSizeBytes = inputSizeBytes * 2; + return 0; +} + diff --git a/codecs/G711u/G711udecode.h b/codecs/G711u/G711udecode.h new file mode 100644 index 0000000000..8c808c500a --- /dev/null +++ b/codecs/G711u/G711udecode.h @@ -0,0 +1,5 @@ + +decodeG711u(void *input, int inputSizeBytes, void *output, int *outputSizeBytes); + + + diff --git a/codecs/G711u/G711utable.h b/codecs/G711u/G711utable.h new file mode 100644 index 0000000000..5a75a29c8b --- /dev/null +++ b/codecs/G711u/G711utable.h @@ -0,0 +1,38 @@ + + +gint16 ulaw_exp_table[256] = { + -32124,-31100,-30076,-29052,-28028,-27004,-25980,-24956, + -23932,-22908,-21884,-20860,-19836,-18812,-17788,-16764, + -15996,-15484,-14972,-14460,-13948,-13436,-12924,-12412, + -11900,-11388,-10876,-10364, -9852, -9340, -8828, -8316, + -7932, -7676, -7420, -7164, -6908, -6652, -6396, -6140, + -5884, -5628, -5372, -5116, -4860, -4604, -4348, -4092, + -3900, -3772, -3644, -3516, -3388, -3260, -3132, -3004, + -2876, -2748, -2620, -2492, -2364, -2236, -2108, -1980, + -1884, -1820, -1756, -1692, -1628, -1564, -1500, -1436, + -1372, -1308, -1244, -1180, -1116, -1052, -988, -924, + -876, -844, -812, -780, -748, -716, -684, -652, + -620, -588, -556, -524, -492, -460, -428, -396, + -372, -356, -340, -324, -308, -292, -276, -260, + -244, -228, -212, -196, -180, -164, -148, -132, + -120, -112, -104, -96, -88, -80, -72, -64, + -56, -48, -40, -32, -24, -16, -8, 0, + 32124, 31100, 30076, 29052, 28028, 27004, 25980, 24956, + 23932, 22908, 21884, 20860, 19836, 18812, 17788, 16764, + 15996, 15484, 14972, 14460, 13948, 13436, 12924, 12412, + 11900, 11388, 10876, 10364, 9852, 9340, 8828, 8316, + 7932, 7676, 7420, 7164, 6908, 6652, 6396, 6140, + 5884, 5628, 5372, 5116, 4860, 4604, 4348, 4092, + 3900, 3772, 3644, 3516, 3388, 3260, 3132, 3004, + 2876, 2748, 2620, 2492, 2364, 2236, 2108, 1980, + 1884, 1820, 1756, 1692, 1628, 1564, 1500, 1436, + 1372, 1308, 1244, 1180, 1116, 1052, 988, 924, + 876, 844, 812, 780, 748, 716, 684, 652, + 620, 588, 556, 524, 492, 460, 428, 396, + 372, 356, 340, 324, 308, 292, 276, 260, + 244, 228, 212, 196, 180, 164, 148, 132, + 120, 112, 104, 96, 88, 80, 72, 64, + 56, 48, 40, 32, 24, 16, 8, 0}; + + + |