1 /* GStreamer FAAD (Free AAC Decoder) plugin 2 * Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net> 3 * 4 * This library is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Library General Public 6 * License as published by the Free Software Foundation; either 7 * version 2 of the License, or (at your option) any later version. 8 * 9 * This library is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * Library General Public License for more details. 13 * 14 * You should have received a copy of the GNU Library General Public 15 * License along with this library; if not, write to the 16 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, 17 * Boston, MA 02110-1301, USA. 18 */ 19 20 #ifndef __GST_FAAD_H__ 21 #define __GST_FAAD_H__ 22 23 #include <gst/gst.h> 24 #include <gst/audio/gstaudiodecoder.h> 25 26 #include <neaacdec.h> 27 28 G_BEGIN_DECLS 29 30 #define GST_TYPE_FAAD \ 31 (gst_faad_get_type ()) 32 #define GST_FAAD(obj) \ 33 (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_FAAD, GstFaad)) 34 #define GST_FAAD_CLASS(klass) \ 35 (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_FAAD, GstFaadClass)) 36 #define GST_IS_FAAD(obj) \ 37 (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_FAAD)) 38 #define GST_IS_FAAD_CLASS(klass) \ 39 (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_FAAD)) 40 41 typedef struct _GstFaad { 42 GstAudioDecoder element; 43 44 guint samplerate; /* sample rate of the last MPEG frame */ 45 guint channels; /* number of channels of the last frame */ 46 guint bps; /* bytes per sample */ 47 guchar *channel_positions; 48 GstAudioChannelPosition aac_positions[6], gst_positions[6]; 49 gboolean need_reorder; 50 gint reorder_map[64]; 51 52 guint8 fake_codec_data[2]; 53 guint32 last_header; 54 55 /* FAAD object */ 56 faacDecHandle handle; 57 gboolean init; 58 59 gboolean packetised; /* We must differentiate between raw and packetised streams */ 60 61 } GstFaad; 62 63 typedef struct _GstFaadClass { 64 GstAudioDecoderClass parent_class; 65 } GstFaadClass; 66 67 GType gst_faad_get_type (void); 68 69 G_END_DECLS 70 71 #endif /* __GST_FAAD_H__ */ 72