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5ed4e21221
Combine the channel remap and copy in one operation. Calculate the channel remap table only once, make a shortcut when we are not doing any remapping.
75 lines
2.2 KiB
C
75 lines
2.2 KiB
C
/* GStreamer FAAD (Free AAC Decoder) plugin
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* Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
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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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_FAAD_H__
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#define __GST_FAAD_H__
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#include <gst/gst.h>
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#include <gst/audio/gstaudiodecoder.h>
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#ifdef FAAD_IS_NEAAC
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#include <neaacdec.h>
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#else
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#include <faad.h>
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#endif
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G_BEGIN_DECLS
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#define GST_TYPE_FAAD \
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(gst_faad_get_type ())
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#define GST_FAAD(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_FAAD, GstFaad))
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#define GST_FAAD_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_FAAD, GstFaadClass))
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#define GST_IS_FAAD(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_FAAD))
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#define GST_IS_FAAD_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_FAAD))
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typedef struct _GstFaad {
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GstAudioDecoder element;
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guint samplerate; /* sample rate of the last MPEG frame */
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guint channels; /* number of channels of the last frame */
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guint bps; /* bytes per sample */
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guchar *channel_positions;
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GstAudioChannelPosition aac_positions[6], gst_positions[6];
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gboolean need_reorder;
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gint reorder_map[64];
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guint8 fake_codec_data[2];
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guint32 last_header;
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/* FAAD object */
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faacDecHandle handle;
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gboolean init;
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gboolean packetised; /* We must differentiate between raw and packetised streams */
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} GstFaad;
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typedef struct _GstFaadClass {
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GstAudioDecoderClass parent_class;
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} GstFaadClass;
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GType gst_faad_get_type (void);
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G_END_DECLS
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#endif /* __GST_FAAD_H__ */
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