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158 lines
4.3 KiB
C
158 lines
4.3 KiB
C
/* GStreamer
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* Copyright (C) 2010 Mark Nauwelaerts <mark.nauwelaerts@collabora.co.uk>
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* Copyright (C) 2010 Nokia Corporation. All rights reserved.
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* Contact: Stefan Kost <stefan.kost@nokia.com>
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*
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* Tremor modifications <2006>:
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* Chris Lord, OpenedHand Ltd. <chris@openedhand.com>, http://www.o-hand.com/
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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_VORBIS_DEC_LIB_H__
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#define __GST_VORBIS_DEC_LIB_H__
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#include <gst/gst.h>
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#ifndef TREMOR
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#include <vorbis/codec.h>
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typedef float vorbis_sample_t;
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typedef ogg_packet ogg_packet_wrapper;
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#define GST_VORBIS_DEC_DESCRIPTION "decode raw vorbis streams to float audio"
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#define GST_VORBIS_DEC_SRC_CAPS \
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GST_STATIC_CAPS ("audio/x-raw-float, " \
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"rate = (int) [ 1, MAX ], " \
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"channels = (int) [ 1, 256 ], " \
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"endianness = (int) BYTE_ORDER, " \
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"width = (int) 32")
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#define GST_VORBIS_DEC_DEFAULT_SAMPLE_WIDTH (32)
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#define GST_VORBIS_DEC_GLIB_TYPE_NAME GstVorbisDec
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static inline guint8 *
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gst_ogg_packet_data (ogg_packet * p)
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{
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return (guint8 *) p->packet;
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}
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static inline gint
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gst_ogg_packet_size (ogg_packet * p)
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{
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return p->bytes;
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}
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static inline void
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gst_ogg_packet_wrapper_from_buffer (ogg_packet * packet, GstBuffer * buffer)
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{
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packet->packet = GST_BUFFER_DATA (buffer);
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packet->bytes = GST_BUFFER_SIZE (buffer);
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}
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static inline ogg_packet *
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gst_ogg_packet_from_wrapper (ogg_packet_wrapper * packet)
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{
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return packet;
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}
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#else
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#include <tremor/ivorbiscodec.h>
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typedef ogg_int32_t vorbis_sample_t;
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typedef struct _ogg_packet_wrapper ogg_packet_wrapper;
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struct _ogg_packet_wrapper {
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ogg_packet packet;
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ogg_reference ref;
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ogg_buffer buf;
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};
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#define GST_VORBIS_DEC_DESCRIPTION "decode raw vorbis streams to integer audio"
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#define GST_VORBIS_DEC_SRC_CAPS \
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GST_STATIC_CAPS ("audio/x-raw-int, " \
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"rate = (int) [ 1, MAX ], " \
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"channels = (int) [ 1, 6 ], " \
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"endianness = (int) BYTE_ORDER, " \
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"width = (int) { 16, 32 }, " \
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"depth = (int) 16, " \
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"signed = (boolean) true")
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#define GST_VORBIS_DEC_DEFAULT_SAMPLE_WIDTH (16)
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/* we need a different type name here */
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#define GST_VORBIS_DEC_GLIB_TYPE_NAME GstIVorbisDec
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/* and still have it compile */
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typedef struct _GstVorbisDec GstIVorbisDec;
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typedef struct _GstVorbisDecClass GstIVorbisDecClass;
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/* compensate minor variation */
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#define vorbis_synthesis(a, b) vorbis_synthesis (a, b, 1)
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static inline guint8 *
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gst_ogg_packet_data (ogg_packet * p)
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{
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return (guint8 *) p->packet->buffer->data;
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}
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static inline gint
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gst_ogg_packet_size (ogg_packet * p)
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{
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return p->packet->buffer->size;
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}
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static inline void
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gst_ogg_packet_wrapper_from_buffer (ogg_packet_wrapper * packet,
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GstBuffer * buffer)
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{
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ogg_reference *ref = &packet->ref;
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ogg_buffer *buf = &packet->buf;
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buf->data = GST_BUFFER_DATA (buffer);
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buf->size = GST_BUFFER_SIZE (buffer);
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buf->refcount = 1;
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buf->ptr.owner = NULL;
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buf->ptr.next = NULL;
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ref->buffer = buf;
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ref->begin = 0;
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ref->length = buf->size;
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ref->next = NULL;
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packet->packet.packet = ref;
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packet->packet.bytes = ref->length;
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}
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static inline ogg_packet *
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gst_ogg_packet_from_wrapper (ogg_packet_wrapper * packet)
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{
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return &(packet->packet);
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}
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#endif
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typedef void (*CopySampleFunc)(vorbis_sample_t *out, vorbis_sample_t **in,
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guint samples, gint channels, gint width);
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CopySampleFunc get_copy_sample_func (gint channels, gint width);
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#endif /* __GST_VORBIS_DEC_LIB_H__ */
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