/* GStreamer

 * Copyright (C) 2010 Mark Nauwelaerts <mark.nauwelaerts@collabora.co.uk>

 * Copyright (C) 2010 Nokia Corporation. All rights reserved.

 *   Contact: Stefan Kost <stefan.kost@nokia.com>

 *

 * Tremor modifications <2006>:

 *   Chris Lord, OpenedHand Ltd. <chris@openedhand.com>, http://www.o-hand.com/

 *

 * 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_VORBIS_DEC_LIB_H__

#define __GST_VORBIS_DEC_LIB_H__

#include <gst/gst.h>

#include <gst/audio/audio.h>

#ifndef TREMOR

#define GST_VORBIS_DEC_DESCRIPTION "decode raw vorbis streams to float audio"

#define GST_VORBIS_AUDIO_FORMAT     GST_AUDIO_FORMAT_F32

#define GST_VORBIS_AUDIO_FORMAT_STR GST_AUDIO_NE (F32)

#define GST_VORBIS_DEC_SRC_CAPS       \

    GST_STATIC_CAPS ("audio/x-raw, "  \

        "format = (string)" GST_VORBIS_AUDIO_FORMAT_STR ", "     \

        "rate = (int) [ 1, MAX ], "   \

        "channels = (int) [ 1, 256 ]")

#define GST_VORBIS_DEC_DEFAULT_SAMPLE_WIDTH           (32)

#else /* TREMOR */

#define GST_VORBIS_DEC_DESCRIPTION "decode raw vorbis streams to integer audio"

#define GST_VORBIS_AUDIO_FORMAT GST_AUDIO_FORMAT_S16

#define GST_VORBIS_AUDIO_FORMAT_STR GST_AUDIO_NE (S16)

#define GST_VORBIS_DEC_SRC_CAPS        \

    GST_STATIC_CAPS ("audio/x-raw, "   \

        "format = (string) " GST_VORBIS_AUDIO_FORMAT_STR ", "      \

        "rate = (int) [ 1, MAX ], "    \

        "channels = (int) [ 1, 6 ]")

#define GST_VORBIS_DEC_DEFAULT_SAMPLE_WIDTH           (16)

/* we need a different type name here */

#define GstVorbisDec GstIVorbisDec

#define GstVorbisDecClass GstIVorbisDecClass

#define gst_vorbis_dec_get_type gst_ivorbis_dec_get_type

#define gst_vorbis_get_copy_sample_func gst_ivorbis_get_copy_sample_func

#endif /* TREMOR */

#ifndef USE_TREMOLO

#ifdef TREMOR

 #include <tremor/ivorbiscodec.h>

 typedef ogg_int32_t                    vorbis_sample_t;

#else

 #include <vorbis/codec.h>

 typedef float                          vorbis_sample_t;

#endif

typedef ogg_packet                     ogg_packet_wrapper;

static inline guint8 *

gst_ogg_packet_data (ogg_packet * p)

{

  return (guint8 *) p->packet;

}

static inline gint

gst_ogg_packet_size (ogg_packet * p)

{

  return p->bytes;

}

static inline void

gst_ogg_packet_wrapper_map (ogg_packet * packet, GstBuffer * buffer, GstMapInfo *map)

{

  gst_buffer_ref (buffer);

  gst_buffer_map (buffer, map, GST_MAP_READ);

  packet->packet = map->data;

  packet->bytes = map->size;

}

static inline void

gst_ogg_packet_wrapper_unmap (ogg_packet * packet, GstBuffer * buffer, GstMapInfo *map)

{

  gst_buffer_unmap (buffer, map);

  gst_buffer_unref (buffer);

}

static inline ogg_packet *

gst_ogg_packet_from_wrapper (ogg_packet_wrapper * packet)

{

  return packet;

}

#else /* USE_TREMOLO */

#include <Tremolo/ivorbiscodec.h>

#include <Tremolo/codec_internal.h>

typedef ogg_int16_t                    vorbis_sample_t;

typedef struct _ogg_packet_wrapper     ogg_packet_wrapper;

struct _ogg_packet_wrapper {

  ogg_packet          packet;

  ogg_reference       ref;

  ogg_buffer          buf;

};

/* compensate minor variation */

#define vorbis_synthesis(a, b)             vorbis_synthesis (a, b, 1)

static inline guint8 *

gst_ogg_packet_data (ogg_packet * p)

{

  return (guint8 *) p->packet->buffer->data;

}

static inline gint

gst_ogg_packet_size (ogg_packet * p)

{

  return p->packet->buffer->size;

}

static inline void

gst_ogg_packet_wrapper_map (ogg_packet_wrapper * packet,

    GstBuffer * buffer, GstMapInfo * map)

{

  GstMapInfo info;

  ogg_reference *ref = &packet->ref;

  ogg_buffer *buf = &packet->buf;

  gsize size;

  gst_buffer_ref (buffer);

  gst_buffer_map (buffer, map, GST_MAP_READ);

  buf->data = map->data;

  buf->size = map->size;

  buf->refcount = 1;

  buf->ptr.owner = NULL;

  buf->ptr.next = NULL;

  ref->buffer = buf;

  ref->begin = 0;

  ref->length = buf->size;

  ref->next = NULL;

  packet->packet.packet = ref;

  packet->packet.bytes = ref->length;

}

static inline void

gst_ogg_packet_wrapper_unmap (ogg_packet_wrapper * packet,

    GstBuffer * buffer, GstMapInfo * map)

{

  ogg_reference *ref = &packet->ref;

  ogg_buffer *buf = &packet->buf;

  gst_buffer_unmap (buffer, map);

  gst_buffer_unref (buffer);

}

static inline ogg_packet *

gst_ogg_packet_from_wrapper (ogg_packet_wrapper * packet)

{

  return &(packet->packet);

}

#endif /* USE_TREMOLO */

typedef void (*CopySampleFunc)(vorbis_sample_t *out, vorbis_sample_t **in,

                           guint samples, gint channels);

CopySampleFunc gst_vorbis_get_copy_sample_func (gint channels);

#endif /* __GST_VORBIS_DEC_LIB_H__ */