gstreamer/ext/opus/gstopuscommon.h
Vincent Penquerc'h b48b3c2c86 opus: properly create channel mapping tables
There are two of them, unintuitively enough; the one passed
to the encoder should not be the one that gets written to the
file. The former maps the input to an ordering which puts
paired channels first, while the latter moves the channels
to Vorbis order. So add code to calculate both, and we now
have properly paired channels where appropriate.

https://bugzilla.gnome.org/show_bug.cgi?id=665078
2011-12-09 15:04:20 +00:00

37 lines
1.3 KiB
C

/* GStreamer Opus Encoder
* Copyright (C) 2009 Sebastian Dröge <sebastian.droege@collabora.co.uk>
*
* 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_OPUS_COMMON_H__
#define __GST_OPUS_COMMON_H__
#include <gst/gst.h>
#include <gst/audio/multichannel.h>
G_BEGIN_DECLS
extern const GstAudioChannelPosition gst_opus_channel_positions[][8];
extern const char *gst_opus_channel_names[];
extern void gst_opus_common_log_channel_mapping_table (GstElement *element,
GstDebugCategory * category, const char *msg,
int n_channels, const guint8 *table);
G_END_DECLS
#endif /* __GST_OPUS_COMMON_H__ */