/* 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., 51 Franklin St, Fifth Floor, * Boston, MA 02110-1301, 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; gboolean sent_codec_tag; }; /** * 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__ */