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Diffstat (limited to 'gst/rtp/gstrtpchannels.h')
| -rwxr-xr-x | gst/rtp/gstrtpchannels.h | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/gst/rtp/gstrtpchannels.h b/gst/rtp/gstrtpchannels.h new file mode 100755 index 0000000..31727fb --- /dev/null +++ b/gst/rtp/gstrtpchannels.h @@ -0,0 +1,190 @@ +/* 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__ */ |