1 /* GStreamer Wavpack plugin 2 * Copyright (c) 2005 Arwed v. Merkatz <v.merkatz@gmx.net> 3 * Copyright (c) 2006 Sebastian Dröge <slomo@circular-chaos.org> 4 * 5 * gstwavpackcommon.h: common helper functions 6 * 7 * This library is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU Library General Public 9 * License as published by the Free Software Foundation; either 10 * version 2 of the License, or (at your option) any later version. 11 * 12 * This library is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * Library General Public License for more details. 16 * 17 * You should have received a copy of the GNU Library General Public 18 * License along with this library; if not, write to the 19 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, 20 * Boston, MA 02110-1301, USA. 21 */ 22 23 #ifndef __GST_WAVPACK_COMMON_H__ 24 #define __GST_WAVPACK_COMMON_H__ 25 26 #include <gst/gst.h> 27 #include <gst/audio/audio.h> 28 #include <wavpack/wavpack.h> 29 30 typedef struct 31 { 32 guint32 byte_length; 33 guint8 *data; 34 guint8 id; 35 } GstWavpackMetadata; 36 37 #define ID_UNIQUE 0x3f 38 #define ID_OPTIONAL_DATA 0x20 39 #define ID_ODD_SIZE 0x40 40 #define ID_LARGE 0x80 41 42 #define ID_DUMMY 0x0 43 #define ID_ENCODER_INFO 0x1 44 #define ID_DECORR_TERMS 0x2 45 #define ID_DECORR_WEIGHTS 0x3 46 #define ID_DECORR_SAMPLES 0x4 47 #define ID_ENTROPY_VARS 0x5 48 #define ID_HYBRID_PROFILE 0x6 49 #define ID_SHAPING_WEIGHTS 0x7 50 #define ID_FLOAT_INFO 0x8 51 #define ID_INT32_INFO 0x9 52 #define ID_WV_BITSTREAM 0xa 53 #define ID_WVC_BITSTREAM 0xb 54 #define ID_WVX_BITSTREAM 0xc 55 #define ID_CHANNEL_INFO 0xd 56 57 #define ID_RIFF_HEADER (ID_OPTIONAL_DATA | 0x1) 58 #define ID_RIFF_TRAILER (ID_OPTIONAL_DATA | 0x2) 59 #define ID_REPLAY_GAIN (ID_OPTIONAL_DATA | 0x3) 60 #define ID_CUESHEET (ID_OPTIONAL_DATA | 0x4) 61 #define ID_CONFIG_BLOCK (ID_OPTIONAL_DATA | 0x5) 62 #define ID_MD5_CHECKSUM (ID_OPTIONAL_DATA | 0x6) 63 #define ID_SAMPLE_RATE (ID_OPTIONAL_DATA | 0x7) 64 65 66 gboolean gst_wavpack_read_header (WavpackHeader * header, guint8 * buf); 67 gboolean gst_wavpack_read_metadata (GstWavpackMetadata * meta, 68 guint8 * header_data, guint8 ** p_data); 69 gint gst_wavpack_get_default_channel_mask (gint nchannels); 70 gboolean gst_wavpack_get_channel_positions (gint nchannels, gint layout, GstAudioChannelPosition *pos); 71 GstAudioChannelPosition *gst_wavpack_get_default_channel_positions (gint nchannels); 72 gint gst_wavpack_get_channel_mask_from_positions (GstAudioChannelPosition *pos, gint nchannels); 73 gboolean gst_wavpack_set_channel_mapping (GstAudioChannelPosition *pos, gint nchannels, gint8 *channel_mapping); 74 75 #endif 76