asfmux: Adds new plugin asfmux

Adds the brand new asfmux plugin, containing 3 elements:
asfmux, rtpasfpay and asfparse. This plugin was developed
as a GSoC 2009 project, with David Schleef as the mentor and
Thiago Santos as the student.

1 files changed, 159 insertions, 0 deletions

diff --git a/gst/asfmux/gstasfmux.h b/gst/asfmux/gstasfmux.h
new file mode 100644
index 000000000..280b67530
--- /dev/null
+++ b/gst/asfmux/gstasfmux.h
@@ -0,0 +1,159 @@
+/* ASF muxer plugin for GStreamer
+ * Copyright (C) 2009 Thiago Santos <thiagoss@embedded.ufcg.edu.br>
+ *
+ * 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.
+ */
+
+
+#ifndef __GST_ASF_MUX_H__
+#define __GST_ASF_MUX_H__
+
+
+#include <gst/gst.h>
+#include <gst/base/gstcollectpads.h>
+#include <gst/riff/riff-media.h>
+
+#include "gstasfobjects.h"
+
+G_BEGIN_DECLS
+#define GST_TYPE_ASF_MUX \
+  (gst_asf_mux_get_type())
+#define GST_ASF_MUX(obj) \
+  (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_ASF_MUX,GstAsfMux))
+#define GST_ASF_MUX_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_ASF_MUX,GstAsfMuxClass))
+#define GST_IS_ASF_MUX(obj) \
+  (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_ASF_MUX))
+#define GST_IS_ASF_MUX_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_ASF_MUX))
+#define GST_ASF_MUX_CAST(obj) ((GstAsfMux*)(obj))
+typedef struct _GstAsfMux GstAsfMux;
+typedef struct _GstAsfMuxClass GstAsfMuxClass;
+typedef struct _GstAsfPad GstAsfPad;
+typedef struct _GstAsfAudioPad GstAsfAudioPad;
+typedef struct _GstAsfVideoPad GstAsfVideoPad;
+typedef enum _GstAsfMuxState GstAsfMuxState;
+
+enum _GstAsfMuxState
+{
+  GST_ASF_MUX_STATE_NONE,
+  GST_ASF_MUX_STATE_STARTED,
+  GST_ASF_MUX_STATE_HEADERS,
+  GST_ASF_MUX_STATE_DATA,
+  GST_ASF_MUX_STATE_EOS
+};
+
+struct _GstAsfPad
+{
+  GstCollectData collect;
+
+  gboolean is_audio;
+  guint8 stream_number;
+  guint8 media_object_number;
+  guint32 bitrate;
+
+  GstClockTime play_duration;
+
+  GstBuffer *codec_data;
+
+  /* stream only metadata */
+  GstTagList *taglist;
+};
+
+struct _GstAsfAudioPad
+{
+  GstAsfPad pad;
+
+  gst_riff_strf_auds audioinfo;
+};
+
+struct _GstAsfVideoPad
+{
+  GstAsfPad pad;
+
+  gst_riff_strf_vids vidinfo;
+
+  /* Simple Index Entries */
+  GSList *simple_index;
+  gboolean has_keyframe;        /* if we have received one at least */
+  guint32 last_keyframe_packet;
+  guint16 last_keyframe_packet_count;
+  guint16 max_keyframe_packet_count;
+  GstClockTime next_index_time;
+  guint64 time_interval;
+};
+
+struct _GstAsfMux
+{
+  GstElement element;
+
+  /* output stream state */
+  GstAsfMuxState state;
+
+  /* counter to assign stream numbers */
+  guint8 stream_number;
+
+  /* counting variables */
+  guint64 file_size;
+  guint64 data_object_size;
+  guint64 total_data_packets;
+
+  /*
+   * data object size field position
+   * needed for updating when finishing the file
+   */
+  guint64 data_object_position;
+  guint64 file_properties_object_position;
+
+  /* payloads still to be sent in a packet */
+  guint32 payload_data_size;
+  GSList *payloads;
+
+  Guid file_id;
+
+  /* properties */
+  guint32 prop_packet_size;
+  guint64 prop_preroll;
+  gboolean prop_merge_stream_tags;
+  guint64 prop_padding;
+  gboolean prop_is_live;
+
+  /* same as properties, but those are stored here to be
+   * used without modification while muxing a single file */
+  guint32 packet_size;
+  guint64 preroll;              /* milisecs */
+  gboolean merge_stream_tags;
+
+  /* pads */
+  GstPad *srcpad;
+
+  /* sinkpads, video first */
+  GSList *sinkpads;
+
+  GstCollectPads *collect;
+  GstPadEventFunction collect_event;
+};
+
+struct _GstAsfMuxClass
+{
+  GstElementClass parent_class;
+};
+
+GType gst_asf_mux_get_type (void);
+gboolean gst_asf_mux_plugin_init (GstPlugin * plugin);
+
+G_END_DECLS
+#endif /* __GST_ASF_MUX_H__ */