mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-10 03:19:40 +00:00
106 lines
3.9 KiB
C
106 lines
3.9 KiB
C
/* GStreamer
|
|
* 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.
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include "gstopuscommon.h"
|
|
|
|
/* http://www.xiph.org/vorbis/doc/Vorbis_I_spec.html#x1-800004.3.9 */
|
|
/* copy of the same structure in the vorbis plugin */
|
|
const GstAudioChannelPosition gst_opus_channel_positions[][8] = {
|
|
{ /* Mono */
|
|
GST_AUDIO_CHANNEL_POSITION_MONO},
|
|
{ /* Stereo */
|
|
GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
|
|
GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT},
|
|
{ /* Stereo + Centre */
|
|
GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
|
|
GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER,
|
|
GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT},
|
|
{ /* Quadraphonic */
|
|
GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
|
|
GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,
|
|
GST_AUDIO_CHANNEL_POSITION_REAR_LEFT,
|
|
GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT,
|
|
},
|
|
{ /* Stereo + Centre + rear stereo */
|
|
GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
|
|
GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER,
|
|
GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,
|
|
GST_AUDIO_CHANNEL_POSITION_REAR_LEFT,
|
|
GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT,
|
|
},
|
|
{ /* Full 5.1 Surround */
|
|
GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
|
|
GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER,
|
|
GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,
|
|
GST_AUDIO_CHANNEL_POSITION_REAR_LEFT,
|
|
GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT,
|
|
GST_AUDIO_CHANNEL_POSITION_LFE1,
|
|
},
|
|
{ /* 6.1 Surround, in Vorbis spec since 2010-01-13 */
|
|
GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
|
|
GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER,
|
|
GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,
|
|
GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT,
|
|
GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT,
|
|
GST_AUDIO_CHANNEL_POSITION_REAR_CENTER,
|
|
GST_AUDIO_CHANNEL_POSITION_LFE1},
|
|
{ /* 7.1 Surround, in Vorbis spec since 2010-01-13 */
|
|
GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
|
|
GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER,
|
|
GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,
|
|
GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT,
|
|
GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT,
|
|
GST_AUDIO_CHANNEL_POSITION_REAR_LEFT,
|
|
GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT,
|
|
GST_AUDIO_CHANNEL_POSITION_LFE1},
|
|
};
|
|
|
|
const char *gst_opus_channel_names[] = {
|
|
"mono",
|
|
"front left",
|
|
"front right",
|
|
"rear center",
|
|
"rear left",
|
|
"rear right",
|
|
"lfe",
|
|
"front center",
|
|
"front left of center",
|
|
"front right of center",
|
|
"side left",
|
|
"side right",
|
|
"none"
|
|
};
|
|
|
|
void
|
|
gst_opus_common_log_channel_mapping_table (GstElement * element,
|
|
GstDebugCategory * category, const char *msg, int n_channels,
|
|
const guint8 * table)
|
|
{
|
|
char s[8 + 256 * 4] = "[ "; /* enough for 256 times "255 " at most */
|
|
int n;
|
|
|
|
for (n = 0; n < n_channels; ++n) {
|
|
size_t len = strlen (s);
|
|
snprintf (s + len, sizeof (s) - len, "%d ", table[n]);
|
|
}
|
|
strcat (s, "]");
|
|
GST_CAT_LEVEL_LOG (category, GST_LEVEL_INFO, element, "%s: %s", msg, s);
|
|
}
|