1 /* 2 * GStreamer 3 * Copyright (C) 2017 Vivia Nikolaidou <vivia@toolsonair.com> 4 * 5 * gstaudiomixmatrix.h 6 * 7 * This library is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU Library General Public 9 * License as published by the Free Software Foundation; either 10 * version 2 of the License, or (at your option) any later version. 11 * 12 * This library is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * Library General Public License for more details. 16 * 17 * You should have received a copy of the GNU Library General Public 18 * License along with this library; if not, write to the 19 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, 20 * Boston, MA 02110-1301, USA. 21 */ 22 23 #ifndef __GST_AUDIO_MIX_MATRIX_H__ 24 #define __GST_AUDIO_MIX_MATRIX_H__ 25 26 #include <gst/gst.h> 27 #include <gst/audio/audio.h> 28 29 #define GST_TYPE_AUDIO_MIX_MATRIX (gst_audio_mix_matrix_get_type()) 30 #define GST_AUDIO_MIX_MATRIX(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AUDIO_MIX_MATRIX,GstAudioMixMatrix)) 31 #define GST_AUDIO_MIX_MATRIX_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_AUDIO_MIX_MATRIX,GstAudioMixMatrixClass)) 32 #define GST_AUDIO_MIX_MATRIX_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), GST_TYPE_AUDIO_MIX_MATRIX,GstAudioMixMatrixClass)) 33 #define GST_IS_AUDIO_MIX_MATRIX(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AUDIO_MIX_MATRIX)) 34 #define GST_IS_AUDIO_MIX_MATRIX_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_AUDIO_MIX_MATRIX)) 35 #define GST_TYPE_AUDIO_MIX_MATRIX_MODE (gst_audio_mix_matrix_mode_get_type()) 36 37 typedef struct _GstAudioMixMatrix GstAudioMixMatrix; 38 typedef struct _GstAudioMixMatrixClass GstAudioMixMatrixClass; 39 40 typedef enum _GstAudioMixMatrixMode 41 { 42 GST_AUDIO_MIX_MATRIX_MODE_MANUAL = 0, 43 GST_AUDIO_MIX_MATRIX_MODE_FIRST_CHANNELS = 1 44 } GstAudioMixMatrixMode; 45 46 /** 47 * GstAudioMixMatrix: 48 * 49 * Opaque data structure. 50 */ 51 struct _GstAudioMixMatrix 52 { 53 GstBaseTransform audiofilter; 54 55 /* < private > */ 56 guint in_channels; 57 guint out_channels; 58 gdouble *matrix; 59 guint64 channel_mask; 60 GstAudioMixMatrixMode mode; 61 gint32 *s16_conv_matrix; 62 gint64 *s32_conv_matrix; 63 gint shift_bytes; 64 65 GstAudioFormat format; 66 }; 67 68 struct _GstAudioMixMatrixClass 69 { 70 GstBaseTransformClass parent_class; 71 }; 72 73 GType gst_audio_mix_matrix_get_type (void); 74 75 GST_ELEMENT_REGISTER_DECLARE (audiomixmatrix); 76 77 GType gst_audio_mix_matrix_mode_get_type (void); 78 79 G_END_DECLS 80 #endif /* __GST_AUDIO_MIX_MATRIX_H__ */ 81