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/* GStreamer Wavpack parser
* Copyright (C) 2012 Mark Nauwelaerts <mark.nauwelaerts@collabora.co.uk>
* Copyright (C) 2012 Nokia Corporation. All rights reserved.
* Contact: Stefan Kost <stefan.kost@nokia.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_WAVPACK_PARSE_H__
#define __GST_WAVPACK_PARSE_H__
#include <gst/gst.h>
#include <gst/base/gstbaseparse.h>
G_BEGIN_DECLS
#define GST_TYPE_WAVPACK_PARSE \
(gst_wavpack_parse_get_type())
#define GST_WAVPACK_PARSE(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_WAVPACK_PARSE, GstWavpackParse))
#define GST_WAVPACK_PARSE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_WAVPACK_PARSE, GstWavpackParseClass))
#define GST_IS_WAVPACK_PARSE(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_WAVPACK_PARSE))
#define GST_IS_WAVPACK_PARSE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_WAVPACK_PARSE))
#define ID_UNIQUE 0x3f
#define ID_OPTIONAL_DATA 0x20
#define ID_ODD_SIZE 0x40
#define ID_LARGE 0x80
#define ID_DUMMY 0x0
#define ID_ENCODER_INFO 0x1
#define ID_DECORR_TERMS 0x2
#define ID_DECORR_WEIGHTS 0x3
#define ID_DECORR_SAMPLES 0x4
#define ID_ENTROPY_VARS 0x5
#define ID_HYBRID_PROFILE 0x6
#define ID_SHAPING_WEIGHTS 0x7
#define ID_FLOAT_INFO 0x8
#define ID_INT32_INFO 0x9
#define ID_WV_BITSTREAM 0xa
#define ID_WVC_BITSTREAM 0xb
#define ID_WVX_BITSTREAM 0xc
#define ID_CHANNEL_INFO 0xd
#define ID_RIFF_HEADER (ID_OPTIONAL_DATA | 0x1)
#define ID_RIFF_TRAILER (ID_OPTIONAL_DATA | 0x2)
#define ID_REPLAY_GAIN (ID_OPTIONAL_DATA | 0x3)
#define ID_CUESHEET (ID_OPTIONAL_DATA | 0x4)
#define ID_CONFIG_BLOCK (ID_OPTIONAL_DATA | 0x5)
#define ID_MD5_CHECKSUM (ID_OPTIONAL_DATA | 0x6)
#define ID_SAMPLE_RATE (ID_OPTIONAL_DATA | 0x7)
#define FLAG_FINAL_BLOCK (1 << 12)
typedef struct {
char ckID [4]; /* "wvpk" */
guint32 ckSize; /* size of entire block (minus 8, of course) */
guint16 version; /* 0x402 to 0x410 are currently valid for decode */
guchar track_no; /* track number (0 if not used, like now) */
guchar index_no; /* track sub-index (0 if not used, like now) */
guint32 total_samples; /* total samples for entire file, but this is
* only valid if block_index == 0 and a value of
* -1 indicates unknown length */
guint32 block_index; /* index of first sample in block relative to
* beginning of file (normally this would start
* at 0 for the first block) */
guint32 block_samples; /* number of samples in this block (0 = no audio) */
guint32 flags; /* various flags for id and decoding */
guint32 crc; /* crc for actual decoded data */
} WavpackHeader;
typedef struct {
gboolean correction;
guint rate;
guint width;
guint channels;
guint channel_mask;
} WavpackInfo;
typedef struct _GstWavpackParse GstWavpackParse;
typedef struct _GstWavpackParseClass GstWavpackParseClass;
/**
* GstWavpackParse:
*
* The opaque GstWavpackParse object
*/
struct _GstWavpackParse {
GstBaseParse baseparse;
/*< private >*/
gint sample_rate;
gint channels;
gint width;
gint channel_mask;
guint total_samples;
};
/**
* GstWavpackParseClass:
* @parent_class: Element parent class.
*
* The opaque GstWavpackParseClass data structure.
*/
struct _GstWavpackParseClass {
GstBaseParseClass baseparse_class;
};
GType gst_wavpack_parse_get_type (void);
G_END_DECLS
#endif /* __GST_WAVPACK_PARSE_H__ */
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