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git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@4795 d0543943-73ff-0310-b7d9-9358b9ac24b2
This commit is contained in:
Anthony Minessale
2007-03-29 22:31:56 +00:00
parent a021945cef
commit 3a54126261
143 changed files with 22413 additions and 31567 deletions
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src/include/switch_bitpack.h
+31 -30
View File
@@ -36,22 +36,20 @@
#ifndef SWITCH_BITPACK_H
#define SWITCH_BITPACK_H
SWITCH_BEGIN_EXTERN_C
#include <switch.h>
#ifdef DEBUG_BITS
static char bb[80] = "";
static inline char *print_bits(switch_byte_t byte, char *x)
{
int i,j = 0;
x[j++] = '[';
for (i=7;i>=0;i--) {
x[j++] = (byte & (1 << i)) ? '1' : '0';
}
x[j++] = ']';
x[j++] = '\0';
return x;
int i, j = 0;
x[j++] = '[';
for (i = 7; i >= 0; i--) {
x[j++] = (byte & (1 << i)) ? '1' : '0';
}
x[j++] = ']';
x[j++] = '\0';
return x;
}
#endif
@@ -63,8 +61,8 @@ static inline char *print_bits(switch_byte_t byte, char *x)
\{
*/
static const uint8_t SWITCH_BITPACKED_MASKS[] = {0, 1, 3, 7, 15, 31, 63, 127, 255};
static const uint8_t SWITCH_REVERSE_BITPACKED_MASKS[] = {255, 254, 252, 248, 240, 224, 192, 128};
static const uint8_t SWITCH_BITPACKED_MASKS[] = { 0, 1, 3, 7, 15, 31, 63, 127, 255 };
static const uint8_t SWITCH_REVERSE_BITPACKED_MASKS[] = { 255, 254, 252, 248, 240, 224, 192, 128 };
/*!
\brief Initialize a bitpack object
@@ -74,8 +72,11 @@ static const uint8_t SWITCH_REVERSE_BITPACKED_MASKS[] = {255, 254, 252, 248, 240
\param buflen the length of the storage buffer
\param mode RFC3551 or AAL2 mode (curse you backwards folks)
*/
DoxyDefine(void switch_bitpack_init(switch_bitpack_t *pack, int32_t bitlen, switch_byte_t *buf, uint32_t buflen, switch_bitpack_mode_t mode))
static inline int8_t switch_bitpack_init(switch_bitpack_t *pack, switch_byte_t bitlen, switch_byte_t *buf, uint32_t buflen, switch_bitpack_mode_t mode)
DoxyDefine(void
switch_bitpack_init(switch_bitpack_t *pack, int32_t bitlen, switch_byte_t *buf, uint32_t buflen,
switch_bitpack_mode_t mode))
static inline int8_t switch_bitpack_init(switch_bitpack_t *pack, switch_byte_t bitlen, switch_byte_t *buf,
uint32_t buflen, switch_bitpack_mode_t mode)
{
if (!pack || (bitlen > SWITCH_BITS_PER_BYTE) || !buf || !buflen) {
return -1;
@@ -94,7 +95,7 @@ static inline int8_t switch_bitpack_init(switch_bitpack_t *pack, switch_byte_t b
static inline void pack_check_over(switch_bitpack_t *pack)
{
switch_byte_t this_byte = pack->this_byte;
switch_byte_t this_byte = pack->this_byte;
if (pack->over) {
pack->bits_cur = pack->over;
@@ -117,7 +118,7 @@ static inline void pack_check_over(switch_bitpack_t *pack)
pack->bytes++;
pack->over = pack->under = 0;
}
}
}
/*!
@@ -125,14 +126,14 @@ static inline void pack_check_over(switch_bitpack_t *pack)
\param pack the pack/unpack object
*/
DoxyDefine(int8_t switch_bitpack_done(switch_bitpack_t *pack))
static inline int8_t switch_bitpack_done(switch_bitpack_t *pack)
static inline int8_t switch_bitpack_done(switch_bitpack_t *pack)
{
if (pack->bits_cur && pack->bits_cur < SWITCH_BITS_PER_BYTE) {
pack->bytes++;
if (pack->mode == SWITCH_BITPACK_MODE_AAL2) {
*pack->cur <<= SWITCH_BITS_PER_BYTE - pack->bits_cur;
}
*pack->cur <<= SWITCH_BITS_PER_BYTE - pack->bits_cur;
}
}
if (pack->over) {
@@ -149,11 +150,11 @@ static inline int8_t switch_bitpack_done(switch_bitpack_t *pack)
\return -1 if the buffer is full otherwise 0
*/
DoxyDefine(int8_t switch_bitpack_out(switch_bitpack_t *unpack, switch_byte_t in))
static inline int8_t switch_bitpack_out(switch_bitpack_t *unpack, switch_byte_t in)
static inline int8_t switch_bitpack_out(switch_bitpack_t *unpack, switch_byte_t in)
{
switch_byte_t this_byte;
if ((uint32_t)(unpack->cur - unpack->buf) > unpack->buflen) {
if ((uint32_t) (unpack->cur - unpack->buf) > unpack->buflen) {
return -1;
}
@@ -163,7 +164,7 @@ static inline int8_t switch_bitpack_out(switch_bitpack_t *unpack, switch_byte_t
pack_check_over(unpack);
while(unpack->bits_cur <= SWITCH_BITS_PER_BYTE) {
while (unpack->bits_cur <= SWITCH_BITS_PER_BYTE) {
switch_byte_t next = unpack->bits_cur + unpack->frame_bits;
switch_byte_t under_in;
switch_byte_t mask;
@@ -220,20 +221,20 @@ static inline int8_t switch_bitpack_out(switch_bitpack_t *unpack, switch_byte_t
\return -1 if the buffer is full otherwise 0
*/
DoxyDefine(int8_t switch_bitpack_in(switch_bitpack_t *pack, switch_byte_t in))
static inline int8_t switch_bitpack_in(switch_bitpack_t *pack, switch_byte_t in)
static inline int8_t switch_bitpack_in(switch_bitpack_t *pack, switch_byte_t in)
{
int next = pack->bits_cur + pack->frame_bits;
if ((uint32_t)(pack->cur - pack->buf) > pack->buflen) {
if ((uint32_t) (pack->cur - pack->buf) > pack->buflen) {
return -1;
}
}
pack->bits_tot += pack->frame_bits;
if (next > SWITCH_BITS_PER_BYTE) {
switch_byte_t a = 0, b = 0, rem, nxt;
rem = SWITCH_BITS_PER_BYTE - pack->bits_cur;
nxt = pack->frame_bits - rem ;
nxt = pack->frame_bits - rem;
if (pack->mode == SWITCH_BITPACK_MODE_RFC3551) {
a = in & SWITCH_BITPACKED_MASKS[rem];
b = in >> rem;
@@ -250,7 +251,7 @@ static inline int8_t switch_bitpack_in(switch_bitpack_t *pack, switch_byte_t in)
pack->cur++;
*pack->cur |= b;
pack->bits_cur = nxt;
}
pack->bytes++;
@@ -259,14 +260,14 @@ static inline int8_t switch_bitpack_in(switch_bitpack_t *pack, switch_byte_t in)
if (pack->mode == SWITCH_BITPACK_MODE_RFC3551) {
in <<= pack->shiftby;
*pack->cur |= in;
pack->shiftby = (switch_byte_t)(pack->shiftby + pack->frame_bits);
pack->shiftby = (switch_byte_t) (pack->shiftby + pack->frame_bits);
} else {
*pack->cur <<= pack->frame_bits;
*pack->cur |= in;
}
if (next == SWITCH_BITS_PER_BYTE) {
pack->cur++;
pack->cur++;
pack->bytes++;
pack->bits_cur = pack->shiftby = 0;
} else {
@@ -276,11 +277,11 @@ static inline int8_t switch_bitpack_in(switch_bitpack_t *pack, switch_byte_t in)
return 0;
}
///\}
SWITCH_END_EXTERN_C
#endif
/* For Emacs:
* Local Variables:
* mode:c