gstfaad.h 2.55 KB
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/* GStreamer FAAD (Free AAC Decoder) plugin
 * Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
 *
 * 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., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */

#ifndef __GST_FAAD_H__
#define __GST_FAAD_H__

#include <gst/gst.h>
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#ifdef FAAD_IS_NEAAC
#include <neaacdec.h>
#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 \
  (gst_faad_get_type ())
#define GST_FAAD(obj) \
  (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_FAAD, GstFaad))
#define GST_FAAD_CLASS(klass) \
  (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_FAAD, GstFaadClass))
#define GST_IS_FAAD(obj) \
  (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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  GstElement element;

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  GstPad    *srcpad;
  GstPad    *sinkpad;
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  guint      samplerate; /* sample rate of the last MPEG frame    */
  guint      channels;   /* number of channels of the last frame  */
  guint      bps;        /* bytes per sample                      */
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  guint8     fake_codec_data[2];

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  GstBuffer *tempbuf;    /* used to keep input leftovers          */
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  /* FAAD object */
  faacDecHandle handle;
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  gboolean init;

  /* FAAD channel setup */
  guchar *channel_positions;
  gboolean need_channel_setup;
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  gboolean packetised; /* We must differentiate between raw and packetised streams */
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  gint64  prev_ts;     /* timestamp of previous buffer                    */
  gint64  next_ts;     /* timestamp of next buffer                        */
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  guint64 bytes_in;    /* bytes received                                  */
  guint64 sum_dur_out; /* sum of durations of decoded buffers we sent out */
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  gint    error_count;
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  /* segment handling */
  GstSegment * segment;
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} GstFaad;

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typedef struct _GstFaadClass {
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  GstElementClass parent_class;
} GstFaadClass;

GType gst_faad_get_type (void);

G_END_DECLS
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#endif /* __GST_FAAD_H__ */