mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-21 07:46:38 +00:00
80 lines
2.6 KiB
C
80 lines
2.6 KiB
C
/* GStreamer plugin for forward error correction
|
|
* Copyright (C) 2017 Pexip
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 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
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*
|
|
* Author: Mikhail Fludkov <misha@pexip.com>
|
|
*/
|
|
|
|
#ifndef __RTP_RED_COMMON_H__
|
|
#define __RTP_RED_COMMON_H__
|
|
|
|
#include <glib.h>
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
typedef struct _RedBlockHeader RedBlockHeader;
|
|
|
|
/* RFC 2198 */
|
|
/*
|
|
0 1 2 3
|
|
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
|
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
|
|F| block PT | timestamp offset | block length |
|
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
|
*/
|
|
|
|
struct _RedBlockHeader {
|
|
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
|
|
guint pt:7;
|
|
guint F:1;
|
|
|
|
guint timestamp_offset_hi: 8;
|
|
|
|
guint length_hi: 2;
|
|
guint timestamp_offset_lo: 6;
|
|
|
|
guint length_lo: 8;
|
|
#elif G_BYTE_ORDER == G_BIG_ENDIAN
|
|
guint F:1;
|
|
guint pt:7;
|
|
|
|
guint timestamp_offset_hi: 8;
|
|
|
|
guint timestamp_offset_lo: 6;
|
|
guint length_hi: 2;
|
|
|
|
guint length_lo: 8;
|
|
#else
|
|
#error "G_BYTE_ORDER should be big or little endian."
|
|
#endif
|
|
};
|
|
|
|
#define RED_BLOCK_TIMESTAMP_OFFSET_MAX ((1<<14) - 1)
|
|
#define RED_BLOCK_LENGTH_MAX ((1<<10) - 1)
|
|
|
|
gsize rtp_red_block_header_get_length (gboolean is_redundant);
|
|
gboolean rtp_red_block_is_redundant (gpointer red_block);
|
|
void rtp_red_block_set_payload_type (gpointer red_block, guint8 pt);
|
|
void rtp_red_block_set_timestamp_offset (gpointer red_block, guint16 timestamp_offset);
|
|
void rtp_red_block_set_payload_length (gpointer red_block, guint16 length);
|
|
guint16 rtp_red_block_get_timestamp_offset (gpointer red_block);
|
|
guint8 rtp_red_block_get_payload_type (gpointer red_block);
|
|
void rtp_red_block_set_is_redundant (gpointer red_block, gboolean is_redundant);
|
|
guint16 rtp_red_block_get_payload_length (gpointer red_block);
|
|
|
|
G_END_DECLS
|
|
|
|
#endif
|