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diff src/audio/SDL_sysaudio.h @ 2716:f8f68f47285a

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Final merge of Google Summer of Code 2008 work... Audio Ideas - Resampling and Pitch Shifting by Aaron Wishnick, mentored by Ryan C. Gordon
author Sam Lantinga <slouken@libsdl.org>
date Mon, 25 Aug 2008 15:08:59 +0000
parents 866052b01ee5
children 99210400e8b9
line wrap: on
line diff
--- a/src/audio/SDL_sysaudio.h	Mon Aug 25 10:14:21 2008 +0000
+++ b/src/audio/SDL_sysaudio.h	Mon Aug 25 15:08:59 2008 +0000
@@ -69,6 +69,15 @@
 } SDL_AudioDriver;
 
 
+/* Streamer */
+typedef struct
+{
+    Uint8 *buffer;
+    int max_len;                /* the maximum length in bytes */
+    int read_pos, write_pos;    /* the position of the write and read heads in bytes */
+} SDL_AudioStreamer;
+
+
 /* Define the SDL audio driver structure */
 struct SDL_AudioDevice
 {
@@ -81,6 +90,10 @@
     /* An audio conversion block for audio format emulation */
     SDL_AudioCVT convert;
 
+    /* The streamer, if sample rate conversion necessitates it */
+    int use_streamer;
+    SDL_AudioStreamer streamer;
+
     /* Current state flags */
     int iscapture;
     int enabled;