[xiph-commits] r12917 - in trunk/speex: include/speex libspeex

[jm at svn.xiph.org]

Author: jm
Date: 2007-05-04 03:04:37 -0700 (Fri, 04 May 2007)
New Revision: 12917

Modified:
   trunk/speex/include/speex/speex_bits.h
   trunk/speex/libspeex/bits.c
Log:
added speex_bits_set_bit_buffer (still untested)


Modified: trunk/speex/include/speex/speex_bits.h
===================================================================
--- trunk/speex/include/speex/speex_bits.h	2007-05-04 09:47:07 UTC (rev 12916)
+++ trunk/speex/include/speex/speex_bits.h	2007-05-04 10:04:37 UTC (rev 12917)
@@ -64,6 +64,9 @@
 /** Initializes SpeexBits struct using a pre-allocated buffer*/
 void speex_bits_init_buffer(SpeexBits *bits, void *buff, int buf_size);
 
+/** Sets the bits in a SpeexBits struct to use data from an existing buffer (for decoding without copying data) */
+void speex_bits_set_bit_buffer(SpeexBits *bits, void *buff, int buf_size);
+
 /** Frees all resources associated to a SpeexBits struct. Right now this does nothing since no resources are allocated, but this could change in the future.*/
 void speex_bits_destroy(SpeexBits *bits);
 

Modified: trunk/speex/libspeex/bits.c
===================================================================
--- trunk/speex/libspeex/bits.c	2007-05-04 09:47:07 UTC (rev 12916)
+++ trunk/speex/libspeex/bits.c	2007-05-04 10:04:37 UTC (rev 12917)
@@ -67,6 +67,20 @@
    speex_bits_reset(bits);
 }
 
+void speex_bits_set_bit_buffer(SpeexBits *bits, void *buff, int buf_size)
+{
+   bits->chars = (char*)buff;
+   bits->buf_size = buf_size;
+
+   bits->owner=0;
+
+   bits->nbBits=buf_size<<LOG2_BITS_PER_CHAR;
+   bits->charPtr=0;
+   bits->bitPtr=0;
+   bits->overflow=0;
+   
+}
+
 void speex_bits_destroy(SpeexBits *bits)
 {
    if (bits->owner)