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Diffstat (limited to 'ext/vorbis/gstvorbisdeclib.h')
| -rw-r--r-- | ext/vorbis/gstvorbisdeclib.h | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/ext/vorbis/gstvorbisdeclib.h b/ext/vorbis/gstvorbisdeclib.h new file mode 100644 index 00000000..a438fa85 --- /dev/null +++ b/ext/vorbis/gstvorbisdeclib.h @@ -0,0 +1,163 @@ +/* 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., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#ifndef __GST_VORBIS_DEC_LIB_H__ +#define __GST_VORBIS_DEC_LIB_H__ + +#include <gst/gst.h> + +#ifndef TREMOR + +#include <vorbis/codec.h> + +typedef float vorbis_sample_t; +typedef ogg_packet ogg_packet_wrapper; + +#define GST_VORBIS_DEC_ELEMENT_DETAILS \ +GST_ELEMENT_DETAILS ("Vorbis audio decoder", \ + "Codec/Decoder/Audio", \ + "decode raw vorbis streams to float audio", \ + "Benjamin Otte <in7y118@public.uni-hamburg.de>") + +#define GST_VORBIS_DEC_SRC_CAPS \ + GST_STATIC_CAPS ("audio/x-raw-float, " "rate = (int) [ 1, MAX ], " \ + "channels = (int) [ 1, 256 ], " "endianness = (int) BYTE_ORDER, " \ + "width = (int) 32") + +#define GST_VORBIS_DEC_DEFAULT_SAMPLE_WIDTH (32) + +#define GST_VORBIS_DEC_GLIB_TYPE_NAME GstVorbisDec + +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_from_buffer (ogg_packet * packet, GstBuffer * buffer) +{ + packet->packet = GST_BUFFER_DATA (buffer); + packet->bytes = GST_BUFFER_SIZE (buffer); +} + +static inline ogg_packet * +gst_ogg_packet_from_wrapper (ogg_packet_wrapper * packet) +{ + return packet; +} + +#else + +#include <tremor/ivorbiscodec.h> + +typedef ogg_int32_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; +}; + +#define GST_VORBIS_DEC_ELEMENT_DETAILS \ +GST_ELEMENT_DETAILS ("Vorbis audio decoder", \ + "Codec/Decoder/Audio", \ + "decode raw vorbis streams to integer audio", \ + "Benjamin Otte <in7y118@public.uni-hamburg.de>\n" \ + "Chris Lord <chris@openedhand.com>") + +#define GST_VORBIS_DEC_SRC_CAPS \ + GST_STATIC_CAPS ("audio/x-raw-int, " \ + "rate = (int) [ 1, MAX ], " \ + "channels = (int) [ 1, 6 ], " \ + "endianness = (int) BYTE_ORDER, " \ + "width = (int) { 16, 32 }, " \ + "depth = (int) 16, " "signed = (boolean) true") + +#define GST_VORBIS_DEC_DEFAULT_SAMPLE_WIDTH (16) + +/* we need a different type name here */ +#define GST_VORBIS_DEC_GLIB_TYPE_NAME GstIVorbisDec + +/* and still have it compile */ +typedef struct _GstVorbisDec GstIVorbisDec; +typedef struct _GstVorbisDecClass GstIVorbisDecClass; + +/* 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_from_buffer (ogg_packet_wrapper * packet, + GstBuffer * buffer) +{ + ogg_reference *ref = &packet->ref; + ogg_buffer *buf = &packet->buf; + + buf->data = GST_BUFFER_DATA (buffer); + buf->size = GST_BUFFER_SIZE (buffer); + 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 ogg_packet * +gst_ogg_packet_from_wrapper (ogg_packet_wrapper * packet) +{ + return &(packet->packet); +} + +#endif + +void copy_samples (vorbis_sample_t *out, vorbis_sample_t **in, + guint samples, gint channels, gint width); + + +#endif /* __GST_VORBIS_DEC_LIB_H__ */ |