diff --git a/gst/qtdemux/qtdemux.c b/gst/qtdemux/qtdemux.c
index fd230458d0..c96769e765 100644
--- a/gst/qtdemux/qtdemux.c
+++ b/gst/qtdemux/qtdemux.c
@@ -4333,6 +4333,15 @@ qtdemux_parse_trak (GstQTDemux * qtdemux, GNode * trak)
         stream->samples_per_frame = 1 * stream->n_channels;
         break;
       }
+      case FOURCC_agsm:
+      {
+        stream->samples_per_packet = 160;
+        stream->bytes_per_packet = 33;
+        stream->bytes_per_frame = 33 * stream->n_channels;
+        stream->bytes_per_sample = 2;
+        stream->samples_per_frame = 160 * stream->n_channels;
+        break;
+      }
       default:
         break;
     }
diff --git a/gst/qtdemux/qtdemux_fourcc.h b/gst/qtdemux/qtdemux_fourcc.h
index e9f99fde62..cb07abe0aa 100644
--- a/gst/qtdemux/qtdemux_fourcc.h
+++ b/gst/qtdemux/qtdemux_fourcc.h
@@ -144,6 +144,7 @@ G_BEGIN_DECLS
 #define FOURCC_ctts     GST_MAKE_FOURCC('c','t','t','s')
 #define FOURCC_keyw     GST_MAKE_FOURCC('k','e','y','w')
 #define FOURCC_kywd     GST_MAKE_FOURCC('k','y','w','d')
+#define FOURCC_agsm     GST_MAKE_FOURCC('a','g','s','m')
 
 /* 3gpp asset meta data fourcc */
 #define FOURCC_titl     GST_MAKE_FOURCC('t','i','t','l')