--- /dev/null
+#ifndef FFMPEG_AVI_H
+#define FFMPEG_AVI_H
+
+#include "avcodec.h"
+
+#define AVIF_HASINDEX 0x00000010 // Index at end of file?
+#define AVIF_MUSTUSEINDEX 0x00000020
+#define AVIF_ISINTERLEAVED 0x00000100
+#define AVIF_TRUSTCKTYPE 0x00000800 // Use CKType to find key frames?
+#define AVIF_WASCAPTUREFILE 0x00010000
+#define AVIF_COPYRIGHTED 0x00020000
+
+#define AVI_MAX_RIFF_SIZE 0x40000000LL
+#define AVI_MASTER_INDEX_SIZE 256
+
+offset_t start_tag(ByteIOContext *pb, const char *tag);
+void end_tag(ByteIOContext *pb, offset_t start);
+
+typedef struct CodecTag {
+ int id;
+ unsigned int tag;
+ unsigned int invalid_asf : 1;
+} CodecTag;
+
+void put_bmp_header(ByteIOContext *pb, AVCodecContext *enc, const CodecTag *tags, int for_asf);
+int put_wav_header(ByteIOContext *pb, AVCodecContext *enc);
+int wav_codec_get_id(unsigned int tag, int bps);
+void get_wav_header(ByteIOContext *pb, AVCodecContext *codec, int size);
+
+extern const CodecTag codec_bmp_tags[];
+extern const CodecTag codec_wav_tags[];
+
+unsigned int codec_get_tag(const CodecTag *tags, int id);
+enum CodecID codec_get_id(const CodecTag *tags, unsigned int tag);
+unsigned int codec_get_bmp_tag(int id);
+unsigned int codec_get_wav_tag(int id);
+enum CodecID codec_get_bmp_id(unsigned int tag);
+enum CodecID codec_get_wav_id(unsigned int tag);
+
+#endif /* FFMPEG_AVI_H */