/* GStreamer * Copyright (C) <2008> Wim Taymans <wim.taymans@gmail.com> * * 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., 51 Franklin St, Fifth Floor, * Boston, MA 02110-1301, USA. */ #include <string.h> #include <stdlib.h> #include <gst/audio/audio.h> #ifndef __GST_RTP_CHANNELS_H__ #define __GST_RTP_CHANNELS_H__ typedef struct { const gchar *name; gint channels; const GstAudioChannelPosition *pos; } GstRTPChannelOrder; static const GstAudioChannelPosition pos_4_1[] = { GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT, GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT, GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT, GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT }; static const GstAudioChannelPosition pos_4_2[] = { GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT, GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT, GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER, GST_AUDIO_CHANNEL_POSITION_LFE1 }; static const GstAudioChannelPosition pos_4_3[] = { GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT, GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT, GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER, GST_AUDIO_CHANNEL_POSITION_LFE1 }; static const GstAudioChannelPosition pos_5_1[] = { GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT, GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT, GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT, GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT, GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER }; static const GstAudioChannelPosition pos_6_1[] = { GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT, GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT, GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT, GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT, GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER, GST_AUDIO_CHANNEL_POSITION_LFE1 }; static const GstAudioChannelPosition pos_6_2[] = { GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT, GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT, GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER, GST_AUDIO_CHANNEL_POSITION_LFE1, GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT, GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT }; static const GstAudioChannelPosition pos_8_1[] = { GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT, GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT, GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER, GST_AUDIO_CHANNEL_POSITION_LFE1, GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT, GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT, GST_AUDIO_CHANNEL_POSITION_REAR_LEFT, GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT }; static const GstAudioChannelPosition pos_8_2[] = { GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT, GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT, GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER, GST_AUDIO_CHANNEL_POSITION_LFE1, GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT, GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT, GST_AUDIO_CHANNEL_POSITION_REAR_LEFT, GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT }; static const GstAudioChannelPosition pos_8_3[] = { GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT, GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT, GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER, GST_AUDIO_CHANNEL_POSITION_LFE1, GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT, GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT, GST_AUDIO_CHANNEL_POSITION_REAR_LEFT, GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT }; static const GstAudioChannelPosition pos_def_1[] = { GST_AUDIO_CHANNEL_POSITION_MONO }; static const GstAudioChannelPosition pos_def_2[] = { GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT, GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT }; static const GstAudioChannelPosition pos_def_3[] = { GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT, GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT, GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER }; static const GstAudioChannelPosition pos_def_4[] = { GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT, GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER, GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT, GST_AUDIO_CHANNEL_POSITION_LFE1 }; static const GstAudioChannelPosition pos_def_5[] = { GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT, GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT, GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER, GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT, GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT }; static const GstAudioChannelPosition pos_def_6[] = { GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT, GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT, GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER, GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT, GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT, GST_AUDIO_CHANNEL_POSITION_LFE1 }; static const GstRTPChannelOrder channel_orders[] = { /* 4 channels */ { "DV.LRLsRs", 4, pos_4_1 }, { "DV.LRCS", 4, pos_4_2 }, { "DV.LRCWo", 4, pos_4_3 }, /* 5 channels */ { "DV.LRLsRsC", 5, pos_5_1 }, /* 6 channels */ { "DV.LRLsRsCS", 6, pos_6_1 }, { "DV.LmixRmixTWoQ1Q2", 6, pos_6_2 }, /* 8 channels */ { "DV.LRCWoLsRsLmixRmix", 8, pos_8_1 }, { "DV.LRCWoLs1Rs1Ls2Rs2", 8, pos_8_2 }, { "DV.LRCWoLsRsLcRc", 8, pos_8_3 }, /* default layouts */ { NULL, 1, pos_def_1 }, { NULL, 2, pos_def_2 }, { NULL, 3, pos_def_3 }, { NULL, 4, pos_def_4 }, { NULL, 5, pos_def_5 }, { NULL, 6, pos_def_6 }, /* terminator, invalid entry */ { NULL, 0, NULL }, }; const GstRTPChannelOrder * gst_rtp_channels_get_by_pos (gint channels, const GstAudioChannelPosition *pos); const GstRTPChannelOrder * gst_rtp_channels_get_by_order (gint channels, const gchar *order); const GstRTPChannelOrder * gst_rtp_channels_get_by_index (gint channels, guint idx); void gst_rtp_channels_create_default (gint channels, GstAudioChannelPosition *pos); #endif /* __GST_RTP_CHANNELS_H__ */