* include/codecs.h: new header file to store information shared by decoders
   and demuxers, like the BITMAPINFOHEADER structure for instance.
* modules/demux/ogg.c: the ogg demuxer should now work nicely with ogm files
   (including for the video). It has only been tested with a few streams
   produced with dvd::rip and ogmmerge though.

include/codecs.h

+/*****************************************************************************
+ * codecs.h: codec related structures needed by the demuxers and decoders
+ *****************************************************************************
+ * Copyright (C) 1999-2001 VideoLAN
+ * $Id: codecs.h,v 1.1 2002/11/03 23:00:32 gbazin Exp $
+ *
+ * Authors: Gildas Bazin <gbazin@netcourrier.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
+ *****************************************************************************/
+
+#ifndef _VLC_CODECS_H
+#define _VLC_CODECS_H 1
+
+/* Structures exported to the demuxers and decoders */
+
+#ifndef _WAVEFORMATEX_
+#define _WAVEFORMATEX_
+typedef struct __attribute__((__packed__)) _WAVEFORMATEX {
+    uint16_t   wFormatTag;
+    uint16_t   nChannels;
+    uint32_t   nSamplesPerSec;
+    uint32_t   nAvgBytesPerSec;
+    uint16_t   nBlockAlign;
+    uint16_t   wBitsPerSample;
+    uint16_t   cbSize;
+} WAVEFORMATEX, *PWAVEFORMATEX, *NPWAVEFORMATEX, *LPWAVEFORMATEX;
+#endif /* _WAVEFORMATEX_ */
+
+#ifndef _BITMAPINFOHEADER_
+#define _BITMAPINFOHEADER_
+typedef struct __attribute__((__packed__))
+{
+    uint32_t   biSize;
+    uint32_t   biWidth;
+    uint32_t   biHeight;
+    uint16_t   biPlanes;
+    uint16_t   biBitCount;
+    uint32_t   biCompression;
+    uint32_t   biSizeImage;
+    uint32_t   biXPelsPerMeter;
+    uint32_t   biYPelsPerMeter;
+    uint32_t   biClrUsed;
+    uint32_t   biClrImportant;
+} BITMAPINFOHEADER, *PBITMAPINFOHEADER, *LPBITMAPINFOHEADER;
+typedef struct {
+    BITMAPINFOHEADER bmiHeader;
+    int        bmiColors[1];
+} BITMAPINFO, *LPBITMAPINFO;
+#endif
+
+/* WAVE form wFormatTag IDs */
+
+#define  WAVE_FORMAT_UNKNOWN            0x0000 /* Microsoft Corporation */
+#define  WAVE_FORMAT_PCM                0x0001 /* Microsoft Corporation */
+#define  WAVE_FORMAT_ADPCM              0x0002 /* Microsoft Corporation */
+#define  WAVE_FORMAT_IEEE_FLOAT         0x0003 /* Microsoft Corporation */
+#define  WAVE_FORMAT_ALAW               0x0006 /* Microsoft Corporation */
+#define  WAVE_FORMAT_MULAW              0x0007 /* Microsoft Corporation */
+#define  WAVE_FORMAT_DTS                0x0008 /* Microsoft Corporation */
+#define  WAVE_FORMAT_MPEG               0x0050 /* Microsoft Corporation */
+#define  WAVE_FORMAT_MPEGLAYER3         0x0055 /* ISO/MPEG Layer3 Format Tag */
+#define  WAVE_FORMAT_DOLBY_AC3_SPDIF    0x0092 /* Sonic Foundry */
+
+/* Need to check these */
+#define WAVE_FORMAT_A52             0x2000
+#define WAVE_FORMAT_WMA1            0x0160
+#define WAVE_FORMAT_WMA2            0x0161
+
+#if !defined(WAVE_FORMAT_EXTENSIBLE)
+#define  WAVE_FORMAT_EXTENSIBLE                 0xFFFE /* Microsoft */
+#endif
+
+#endif /* "codecs.h" */