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/* GStreamer EBML I/O
* (c) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
* (c) 2005 Michal Benes <michal.benes@xeris.cz>
*
* ebml-write.c: write EBML data to file/stream
*
* 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __GST_EBML_WRITE_H__
#define __GST_EBML_WRITE_H__
#include <glib.h>
#include <gst/gst.h>
#include <gst/base/gstbytewriter.h>
G_BEGIN_DECLS
#define GST_TYPE_EBML_WRITE \
(gst_ebml_write_get_type ())
#define GST_EBML_WRITE(obj) \
(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_EBML_WRITE, GstEbmlWrite))
#define GST_EBML_WRITE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_EBML_WRITE, GstEbmlWriteClass))
#define GST_IS_EBML_WRITE(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_EBML_WRITE))
#define GST_IS_EBML_WRITE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_EBML_WRITE))
#define GST_EBML_WRITE_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_EBML_WRITE, GstEbmlWriteClass))
typedef struct _GstEbmlWrite {
GstObject object;
GstPad *srcpad;
guint64 pos;
guint64 last_pos;
GstClockTime timestamp;
GstByteWriter *cache;
guint64 cache_pos;
GstFlowReturn last_write_result;
gboolean writing_streamheader;
GstByteWriter *streamheader;
guint64 streamheader_pos;
GstCaps *caps;
gboolean streamable;
} GstEbmlWrite;
typedef struct _GstEbmlWriteClass {
GstObjectClass parent;
} GstEbmlWriteClass;
GType gst_ebml_write_get_type (void);
GstEbmlWrite *gst_ebml_write_new (GstPad *srcpad);
void gst_ebml_write_reset (GstEbmlWrite *ebml);
GstFlowReturn gst_ebml_last_write_result (GstEbmlWrite *ebml);
/* Used to create streamheaders */
void gst_ebml_start_streamheader (GstEbmlWrite *ebml);
GstBuffer* gst_ebml_stop_streamheader (GstEbmlWrite *ebml);
/*
* Caching means that we do not push one buffer for
* each element, but fill this one until a flush.
*/
void gst_ebml_write_set_cache (GstEbmlWrite *ebml,
guint size);
void gst_ebml_write_flush_cache (GstEbmlWrite *ebml,
gboolean is_keyframe,
GstClockTime timestamp);
/*
* Seeking.
*/
void gst_ebml_write_seek (GstEbmlWrite *ebml,
guint64 pos);
/*
* Data writing.
*/
void gst_ebml_write_uint (GstEbmlWrite *ebml,
guint32 id,
guint64 num);
void gst_ebml_write_sint (GstEbmlWrite *ebml,
guint32 id,
gint64 num);
void gst_ebml_write_float (GstEbmlWrite *ebml,
guint32 id,
gdouble num);
void gst_ebml_write_ascii (GstEbmlWrite *ebml,
guint32 id,
const gchar *str);
void gst_ebml_write_utf8 (GstEbmlWrite *ebml,
guint32 id,
const gchar *str);
void gst_ebml_write_date (GstEbmlWrite *ebml,
guint32 id,
gint64 date);
guint64 gst_ebml_write_master_start (GstEbmlWrite *ebml,
guint32 id);
void gst_ebml_write_master_finish (GstEbmlWrite *ebml,
guint64 startpos);
void gst_ebml_write_master_finish_full (GstEbmlWrite * ebml,
guint64 startpos,
guint64 extra_size);
void gst_ebml_write_binary (GstEbmlWrite *ebml,
guint32 id,
guchar *binary,
guint64 length);
void gst_ebml_write_header (GstEbmlWrite *ebml,
const gchar *doctype,
guint version);
/*
* Note: this is supposed to be used only for media data.
*/
void gst_ebml_write_buffer_header (GstEbmlWrite *ebml,
guint32 id,
guint64 length);
void gst_ebml_write_buffer (GstEbmlWrite *ebml,
GstBuffer *data);
/*
* A hack, basically... See matroska-mux.c. I should actually
* make a nice _replace_element_with_size() or so, but this
* works for now.
*/
void gst_ebml_replace_uint (GstEbmlWrite *ebml,
guint64 pos,
guint64 num);
G_END_DECLS
#endif /* __GST_EBML_WRITE_H__ */
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