2 * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
21 #ifndef __GST_WAVPARSE_H__
22 #define __GST_WAVPARSE_H__
27 #include <gst/riff/riff.h>
32 #endif /* __cplusplus */
35 #define GST_TYPE_WAVPARSE \
36 (gst_wavparse_get_type())
37 #define GST_WAVPARSE(obj) \
38 (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_WAVPARSE,GstWavParse))
39 #define GST_WAVPARSE_CLASS(klass) \
40 (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_WAVPARSE,GstWavParse))
41 #define GST_IS_WAVPARSE(obj) \
42 (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_WAVPARSE))
43 #define GST_IS_WAVPARSE_CLASS(obj) \
44 (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_WAVPARSE))
47 #define GST_WAVPARSE_UNKNOWN 0 /* initialized state */
48 #define GST_WAVPARSE_CHUNK_FMT 1 /* searching for fmt */
49 #define GST_WAVPARSE_CHUNK_DATA 2 /* searching for data */
50 #define GST_WAVPARSE_DATA 3 /* in data region */
51 #define GST_WAVPARSE_OTHER 4 /* in unknown region */
53 typedef struct _GstWavParse GstWavParse;
54 typedef struct _GstWavParseClass GstWavParseClass;
60 GstPad *sinkpad,*srcpad;
62 /* WAVE decoding state */
65 /* RIFF decoding state */
67 gulong riff_nextlikely;
69 /* expected length of audio */
72 /* format of audio, see defines below */
75 /* useful audio data */
83 gboolean need_discont;
90 struct _GstWavParseClass {
91 GstElementClass parent_class;
94 GType gst_wavparse_get_type(void);
96 typedef struct _GstWavParseFormat GstWavParseFormat;
98 struct _GstWavParseFormat {
101 guint32 dwSamplesPerSec;
102 guint32 dwAvgBytesPerSec;
104 guint16 wBitsPerSample;
108 /**** from public Microsoft RIFF docs ******/
109 #define GST_RIFF_WAVE_FORMAT_UNKNOWN (0x0000)
110 #define GST_RIFF_WAVE_FORMAT_PCM (0x0001)
111 #define GST_RIFF_WAVE_FORMAT_ADPCM (0x0002)
112 #define GST_RIFF_WAVE_FORMAT_IBM_CVSD (0x0005)
113 #define GST_RIFF_WAVE_FORMAT_ALAW (0x0006)
114 #define GST_RIFF_WAVE_FORMAT_MULAW (0x0007)
115 #define GST_RIFF_WAVE_FORMAT_OKI_ADPCM (0x0010)
116 #define GST_RIFF_WAVE_FORMAT_DVI_ADPCM (0x0011)
117 #define GST_RIFF_WAVE_FORMAT_DIGISTD (0x0015)
118 #define GST_RIFF_WAVE_FORMAT_DIGIFIX (0x0016)
119 #define GST_RIFF_WAVE_FORMAT_YAMAHA_ADPCM (0x0020)
120 #define GST_RIFF_WAVE_FORMAT_DSP_TRUESPEECH (0x0022)
121 #define GST_RIFF_WAVE_FORMAT_GSM610 (0x0031)
122 #define GST_RIFF_WAVE_FORMAT_MSN (0x0032)
123 #define GST_RIFF_WAVE_FORMAT_MPEGL12 (0x0050)
124 #define GST_RIFF_WAVE_FORMAT_MPEGL3 (0x0055)
125 #define GST_RIFF_IBM_FORMAT_MULAW (0x0101)
126 #define GST_RIFF_IBM_FORMAT_ALAW (0x0102)
127 #define GST_RIFF_IBM_FORMAT_ADPCM (0x0103)
128 #define GST_RIFF_WAVE_FORMAT_DIVX_WMAV1 (0x0160)
129 #define GST_RIFF_WAVE_FORMAT_DIVX_WMAV2 (0x0161)
130 #define GST_RIFF_WAVE_FORMAT_WMAV9 (0x0162)
131 #define GST_RIFF_WAVE_FORMAT_VORBIS1 (0x674f)
132 #define GST_RIFF_WAVE_FORMAT_VORBIS2 (0x6750)
133 #define GST_RIFF_WAVE_FORMAT_VORBIS3 (0x6751)
134 #define GST_RIFF_WAVE_FORMAT_VORBIS1PLUS (0x676f)
135 #define GST_RIFF_WAVE_FORMAT_VORBIS2PLUS (0x6770)
136 #define GST_RIFF_WAVE_FORMAT_VORBIS3PLUS (0x6771)
140 #endif /* __cplusplus */
143 #endif /* __GST_WAVPARSE_H__ */