191 lines
6.2 KiB
C
191 lines
6.2 KiB
C
/* GStreamer
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* Copyright (C) <2008> Wim Taymans <wim.taymans@gmail.com>
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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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#include <string.h>
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#include <stdlib.h>
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#include <gst/audio/audio.h>
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#ifndef __GST_RTP_CHANNELS_H__
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#define __GST_RTP_CHANNELS_H__
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typedef struct
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{
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const gchar *name;
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gint channels;
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const GstAudioChannelPosition *pos;
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} GstRTPChannelOrder;
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static const GstAudioChannelPosition pos_4_1[] = {
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GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
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GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,
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GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT,
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GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT
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};
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static const GstAudioChannelPosition pos_4_2[] = {
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GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
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GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,
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GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER,
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GST_AUDIO_CHANNEL_POSITION_LFE1
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};
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static const GstAudioChannelPosition pos_4_3[] = {
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GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
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GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,
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GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER,
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GST_AUDIO_CHANNEL_POSITION_LFE1
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};
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static const GstAudioChannelPosition pos_5_1[] = {
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GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
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GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,
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GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT,
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GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT,
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GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER
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};
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static const GstAudioChannelPosition pos_6_1[] = {
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GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
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GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,
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GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT,
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GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT,
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GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER,
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GST_AUDIO_CHANNEL_POSITION_LFE1
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};
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static const GstAudioChannelPosition pos_6_2[] = {
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GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
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GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,
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GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER,
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GST_AUDIO_CHANNEL_POSITION_LFE1,
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GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT,
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GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT
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};
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static const GstAudioChannelPosition pos_8_1[] = {
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GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
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GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,
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GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER,
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GST_AUDIO_CHANNEL_POSITION_LFE1,
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GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT,
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GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT,
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GST_AUDIO_CHANNEL_POSITION_REAR_LEFT,
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GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT
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};
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static const GstAudioChannelPosition pos_8_2[] = {
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GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
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GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,
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GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER,
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GST_AUDIO_CHANNEL_POSITION_LFE1,
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GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT,
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GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT,
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GST_AUDIO_CHANNEL_POSITION_REAR_LEFT,
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GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT
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};
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static const GstAudioChannelPosition pos_8_3[] = {
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GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
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GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,
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GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER,
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GST_AUDIO_CHANNEL_POSITION_LFE1,
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GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT,
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GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT,
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GST_AUDIO_CHANNEL_POSITION_REAR_LEFT,
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GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT
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};
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static const GstAudioChannelPosition pos_def_1[] = {
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GST_AUDIO_CHANNEL_POSITION_MONO
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};
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static const GstAudioChannelPosition pos_def_2[] = {
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GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
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GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT
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};
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static const GstAudioChannelPosition pos_def_3[] = {
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GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
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GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,
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GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER
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};
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static const GstAudioChannelPosition pos_def_4[] = {
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GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
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GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER,
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GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,
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GST_AUDIO_CHANNEL_POSITION_LFE1
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};
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static const GstAudioChannelPosition pos_def_5[] = {
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GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
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GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,
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GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER,
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GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT,
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GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT
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};
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static const GstAudioChannelPosition pos_def_6[] = {
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GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT,
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GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
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GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER,
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GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT,
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GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,
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GST_AUDIO_CHANNEL_POSITION_LFE1
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};
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static const GstRTPChannelOrder channel_orders[] =
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{
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/* 4 channels */
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{ "DV.LRLsRs", 4, pos_4_1 },
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{ "DV.LRCS", 4, pos_4_2 },
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{ "DV.LRCWo", 4, pos_4_3 },
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/* 5 channels */
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{ "DV.LRLsRsC", 5, pos_5_1 },
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/* 6 channels */
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{ "DV.LRLsRsCS", 6, pos_6_1 },
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{ "DV.LmixRmixTWoQ1Q2", 6, pos_6_2 },
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/* 8 channels */
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{ "DV.LRCWoLsRsLmixRmix", 8, pos_8_1 },
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{ "DV.LRCWoLs1Rs1Ls2Rs2", 8, pos_8_2 },
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{ "DV.LRCWoLsRsLcRc", 8, pos_8_3 },
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/* default layouts */
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{ NULL, 1, pos_def_1 },
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{ NULL, 2, pos_def_2 },
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{ NULL, 3, pos_def_3 },
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{ NULL, 4, pos_def_4 },
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{ NULL, 5, pos_def_5 },
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{ NULL, 6, pos_def_6 },
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/* terminator, invalid entry */
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{ NULL, 0, NULL },
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};
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const GstRTPChannelOrder * gst_rtp_channels_get_by_pos (gint channels,
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const GstAudioChannelPosition *pos);
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const GstRTPChannelOrder * gst_rtp_channels_get_by_order (gint channels,
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const gchar *order);
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const GstRTPChannelOrder * gst_rtp_channels_get_by_index (gint channels, guint idx);
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void gst_rtp_channels_create_default (gint channels, GstAudioChannelPosition *pos);
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#endif /* __GST_RTP_CHANNELS_H__ */
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