1 files changed, 94 insertions, 0 deletions
diff --git a/ext/mpeg2enc/gstmpeg2encstreamwriter.cc b/ext/mpeg2enc/gstmpeg2encstreamwriter.cc
new file mode 100644
index 00000000..50c70cdf
--- /dev/null
+++ b/ext/mpeg2enc/gstmpeg2encstreamwriter.cc
@@ -0,0 +1,94 @@
+/* GStreamer mpeg2enc (mjpegtools) wrapper
+ * (c) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
+ *
+ * gstmpeg2encstreamwriter.cc: GStreamer/mpeg2enc output wrapper
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "gstmpeg2encstreamwriter.hh"
+
+#define BUFSIZE (128*1024)
+
+/*
+ * Class init stuff.
+ */
+
+GstMpeg2EncStreamWriter::GstMpeg2EncStreamWriter (GstPad        *in_pad,
+						  EncoderParams *params) :
+  ElemStrmWriter (*params)
+{
+  pad = in_pad;
+  buf = NULL;
+}
+
+/*
+ * Output functions.
+ */
+
+void
+GstMpeg2EncStreamWriter::PutBits (guint32 val,
+				  gint    n)
+{
+  /* only relevant bits */
+  val &= ~(0xffffffffU << n);
+
+  /* write data */
+  while (n >= outcnt) {
+    if (!buf) {
+      buf = gst_buffer_new_and_alloc (BUFSIZE);
+      GST_BUFFER_SIZE (buf) = 0;
+    }
+
+    outbfr = (outbfr << outcnt ) | (val >> (n - outcnt));
+    GST_BUFFER_DATA (buf)[GST_BUFFER_SIZE (buf)++] = outbfr;
+    n -= outcnt;
+    outcnt = 8;
+    bytecnt++;
+
+    if (GST_BUFFER_SIZE (buf) >= GST_BUFFER_MAXSIZE (buf))
+      FrameFlush ();
+  }
+
+  /* cache remaining bits */
+  if (n != 0) {
+    outbfr = (outbfr << n) | val;
+    outcnt -= n;
+  }
+}
+
+void
+GstMpeg2EncStreamWriter::FrameBegin ()
+{
+}
+
+void
+GstMpeg2EncStreamWriter::FrameFlush ()
+{
+  if (buf) {
+    gst_pad_push (pad, GST_DATA (buf));
+    buf = NULL;
+  }
+}
+
+void
+GstMpeg2EncStreamWriter::FrameDiscard ()
+{
+}