1 files changed, 64 insertions, 0 deletions
diff --git a/doc/sampleenc.c b/doc/sampleenc.c
new file mode 100644
index 0000000..a0ec8b6
--- /dev/null
+++ b/doc/sampleenc.c
@@ -0,0 +1,64 @@
+#include <speex/speex.h>
+#include <stdio.h>
+
+/*The frame size in hardcoded for this sample code but it doesn't have to be*/
+#define FRAME_SIZE 160
+int main(int argc, char **argv)
+{
+   char *inFile;
+   FILE *fin;
+   short in[FRAME_SIZE];
+   float input[FRAME_SIZE];
+   char cbits[200];
+   int nbBytes;
+   /*Holds the state of the encoder*/
+   void *state;
+   /*Holds bits so they can be read and written to by the Speex routines*/
+   SpeexBits bits;
+   int i, tmp;
+
+   /*Create a new encoder state in narrowband mode*/
+   state = speex_encoder_init(&speex_nb_mode);
+
+   /*Set the quality to 8 (15 kbps)*/
+   tmp=8;
+   speex_encoder_ctl(state, SPEEX_SET_QUALITY, &tmp);
+
+   inFile = argv[1];
+   fin = fopen(inFile, "r");
+
+   /*Initialization of the structure that holds the bits*/
+   speex_bits_init(&bits);
+   while (1)
+   {
+      /*Read a 16 bits/sample audio frame*/
+      fread(in, sizeof(short), FRAME_SIZE, fin);
+      if (feof(fin))
+         break;
+      /*Copy the 16 bits values to float so Speex can work on them*/
+      for (i=0;i<FRAME_SIZE;i++)
+         input[i]=in[i];
+
+      /*Flush all the bits in the struct so we can encode a new frame*/
+      speex_bits_reset(&bits);
+
+      /*Encode the frame*/
+      speex_encode(state, input, &bits);
+      /*Copy the bits to an array of char that can be written*/
+      nbBytes = speex_bits_write(&bits, cbits, 200);
+
+      /*Write the size of the frame first. This is what sampledec expects but
+       it's likely to be different in your own application*/
+      fwrite(&nbBytes, sizeof(int), 1, stdout);
+      /*Write the compressed data*/
+      fwrite(cbits, 1, nbBytes, stdout);
+
+   }
+
+   /*Destroy the encoder state*/
+   speex_encoder_destroy(state);
+   /*Destroy the bit-packing struct*/
+   speex_bits_destroy(&bits);
+   fclose(fin);
+   return 0;
+}