FS-3069 --resolve

src/include/switch_types.h

@@ -1402,6 +1402,9 @@ SMBF_READ_REPLACE - Replace the Read Stream
 SMBF_STEREO - Record in stereo
 SMBF_ANSWER_RECORD_REQ - Don't record until the channel is answered
 SMBF_THREAD_LOCK - Only let the same thread who created the bug remove it.
+SMBF_PRUNE - 
+SMBF_NO_PAUSE - 
+SMBF_STEREO_SWAP - Record in stereo: Write Stream - left channel, Read Stream - right channel
 </pre>
 */
 typedef enum {
@@ -1415,7 +1418,8 @@ typedef enum {
 	SMBF_ANSWER_REQ = (1 << 6),
 	SMBF_THREAD_LOCK = (1 << 7),
 	SMBF_PRUNE = (1 << 8),
-	SMBF_NO_PAUSE = (1 << 9)
+	SMBF_NO_PAUSE = (1 << 9),
+	SMBF_STEREO_SWAP = (1 << 10)
 } switch_media_bug_flag_enum_t;
 typedef uint32_t switch_media_bug_flag_t;
 

src/switch_core_media_bug.c

@@ -207,14 +207,27 @@ SWITCH_DECLARE(switch_status_t) switch_core_media_bug_read(switch_media_bug_t *b
 	}
 
 	if (switch_test_flag(bug, SMBF_STEREO)) {
+		int16_t *left, *right;
+		size_t left_len, right_len;
+		if (switch_test_flag(bug, SMBF_STEREO_SWAP)) {
+			left = dp; /* write stream */
+			left_len = wlen;
+			right = fp; /* read stream */
+			right_len = rlen;
+		} else {
+			left = fp; /* read stream */
+			left_len = rlen;
+			right = dp; /* write stream */
+			right_len = wlen;
+		}
 		for (x = 0; x < blen; x++) {
-			if (x < rlen) {
-				*(tp++) = *(fp + x);
+			if (x < left_len) {
+				*(tp++) = *(left + x);
 			} else {
 				*(tp++) = 0;
 			}
-			if (x < wlen) {
-				*(tp++) = *(dp + x);
+			if (x < right_len) {
+				*(tp++) = *(right + x);
 			} else {
 				*(tp++) = 0;
 			}

src/switch_ivr_async.c

@@ -1589,6 +1589,13 @@ SWITCH_DECLARE(switch_status_t) switch_ivr_record_session(switch_core_session_t
 
 	if ((p = switch_channel_get_variable(channel, "RECORD_STEREO")) && switch_true(p)) {
 		flags |= SMBF_STEREO;
+		flags &= ~SMBF_STEREO_SWAP;
+		channels = 2;
+	}
+
+	if ((p = switch_channel_get_variable(channel, "RECORD_STEREO_SWAP")) && switch_true(p)) {
+		flags |= SMBF_STEREO;
+		flags |= SMBF_STEREO_SWAP;
 		channels = 2;
 	}