gstreamer/ext/libav/gstavauddec.h

/* GStreamer
 * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
 *
 * 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.
 */
#ifndef __GST_FFMPEGAUDDEC_H__
#define __GST_FFMPEGAUDDEC_H__

G_BEGIN_DECLS

#include <gst/gst.h>
#include <gst/audio/audio.h>
#include <gst/audio/gstaudiodecoder.h>
#include <libavcodec/avcodec.h>

typedef struct _GstFFMpegAudDec GstFFMpegAudDec;
struct _GstFFMpegAudDec
{
  GstAudioDecoder parent;

  /* decoding */
  AVCodecContext *context;
  gboolean opened;

  /* prevent reopening the decoder on GST_EVENT_CAPS when caps are same as last time. */
  GstCaps *last_caps;

  /* Stores current buffers to push as GstAudioDecoder wants 1:1 mapping for input/output buffers */
  GstBuffer *outbuf;

  /* current output format */
  GstAudioInfo info;
  GstAudioChannelPosition ffmpeg_layout[64];
  gboolean needs_reorder;
};

typedef struct _GstFFMpegAudDecClass GstFFMpegAudDecClass;

struct _GstFFMpegAudDecClass
{
  GstAudioDecoderClass parent_class;

  AVCodec *in_plugin;
  GstPadTemplate *srctempl, *sinktempl;
};

#define GST_TYPE_FFMPEGDEC \
  (gst_ffmpegauddec_get_type())
#define GST_FFMPEGDEC(obj) \
  (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_FFMPEGDEC,GstFFMpegAudDec))
#define GST_FFMPEGAUDDEC_CLASS(klass) \
  (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_FFMPEGDEC,GstFFMpegAudDecClass))
#define GST_IS_FFMPEGDEC(obj) \
  (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_FFMPEGDEC))
#define GST_IS_FFMPEGAUDDEC_CLASS(klass) \
  (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_FFMPEGDEC))

G_END_DECLS

#endif