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154 lines
5.5 KiB
C
154 lines
5.5 KiB
C
/* GStreamer EBML I/O
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* (c) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
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* (c) 2005 Michal Benes <michal.benes@xeris.cz>
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*
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* ebml-write.c: write EBML data to file/stream
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GST_EBML_WRITE_H__
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#define __GST_EBML_WRITE_H__
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#include <glib.h>
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#include <gst/gst.h>
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#include <gst/base/gstbytewriter.h>
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G_BEGIN_DECLS
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#define GST_TYPE_EBML_WRITE \
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(gst_ebml_write_get_type ())
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#define GST_EBML_WRITE(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_EBML_WRITE, GstEbmlWrite))
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#define GST_EBML_WRITE_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_EBML_WRITE, GstEbmlWriteClass))
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#define GST_IS_EBML_WRITE(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_EBML_WRITE))
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#define GST_IS_EBML_WRITE_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_EBML_WRITE))
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#define GST_EBML_WRITE_GET_CLASS(obj) \
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(G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_EBML_WRITE, GstEbmlWriteClass))
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typedef struct _GstEbmlWrite {
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GstObject object;
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GstPad *srcpad;
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guint64 pos;
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guint64 last_pos;
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GstClockTime timestamp;
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GstByteWriter *cache;
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guint64 cache_pos;
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GstFlowReturn last_write_result;
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gboolean writing_streamheader;
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GstByteWriter *streamheader;
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guint64 streamheader_pos;
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GstCaps *caps;
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gboolean streamable;
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} GstEbmlWrite;
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typedef struct _GstEbmlWriteClass {
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GstObjectClass parent;
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} GstEbmlWriteClass;
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GType gst_ebml_write_get_type (void);
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GstEbmlWrite *gst_ebml_write_new (GstPad *srcpad);
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void gst_ebml_write_reset (GstEbmlWrite *ebml);
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GstFlowReturn gst_ebml_last_write_result (GstEbmlWrite *ebml);
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/* Used to create streamheaders */
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void gst_ebml_start_streamheader (GstEbmlWrite *ebml);
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GstBuffer* gst_ebml_stop_streamheader (GstEbmlWrite *ebml);
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/*
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* Caching means that we do not push one buffer for
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* each element, but fill this one until a flush.
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*/
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void gst_ebml_write_set_cache (GstEbmlWrite *ebml,
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guint size);
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void gst_ebml_write_flush_cache (GstEbmlWrite *ebml,
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gboolean is_keyframe,
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GstClockTime timestamp);
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/*
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* Seeking.
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*/
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void gst_ebml_write_seek (GstEbmlWrite *ebml,
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guint64 pos);
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/*
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* Data writing.
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*/
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void gst_ebml_write_uint (GstEbmlWrite *ebml,
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guint32 id,
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guint64 num);
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void gst_ebml_write_sint (GstEbmlWrite *ebml,
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guint32 id,
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gint64 num);
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void gst_ebml_write_float (GstEbmlWrite *ebml,
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guint32 id,
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gdouble num);
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void gst_ebml_write_ascii (GstEbmlWrite *ebml,
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guint32 id,
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const gchar *str);
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void gst_ebml_write_utf8 (GstEbmlWrite *ebml,
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guint32 id,
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const gchar *str);
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void gst_ebml_write_date (GstEbmlWrite *ebml,
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guint32 id,
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gint64 date);
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guint64 gst_ebml_write_master_start (GstEbmlWrite *ebml,
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guint32 id);
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void gst_ebml_write_master_finish (GstEbmlWrite *ebml,
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guint64 startpos);
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void gst_ebml_write_master_finish_full (GstEbmlWrite * ebml,
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guint64 startpos,
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guint64 extra_size);
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void gst_ebml_write_binary (GstEbmlWrite *ebml,
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guint32 id,
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guchar *binary,
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guint64 length);
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void gst_ebml_write_header (GstEbmlWrite *ebml,
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const gchar *doctype,
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guint version);
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/*
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* Note: this is supposed to be used only for media data.
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*/
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void gst_ebml_write_buffer_header (GstEbmlWrite *ebml,
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guint32 id,
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guint64 length);
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void gst_ebml_write_buffer (GstEbmlWrite *ebml,
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GstBuffer *data);
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/*
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* A hack, basically... See matroska-mux.c. I should actually
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* make a nice _replace_element_with_size() or so, but this
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* works for now.
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*/
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void gst_ebml_replace_uint (GstEbmlWrite *ebml,
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guint64 pos,
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guint64 num);
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G_END_DECLS
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#endif /* __GST_EBML_WRITE_H__ */
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