move common stuff from avienc.c and wav.c to new file riff.c

Originally committed as revision 5720 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 30 insertions, 0 deletions

diff --git a/libavformat/riff.h b/libavformat/riff.h
new file mode 100644
index 0000000000..91c050196f
--- /dev/null
+++ b/libavformat/riff.h
@@ -0,0 +1,30 @@
+#ifndef FF_RIFF_H
+#define FF_RIFF_H
+
+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);
+unsigned int codec_get_asf_tag(const CodecTag *tags, unsigned int id);
+void ff_parse_specific_params(AVCodecContext *stream, int *au_rate, int *au_ssize, int *au_scale);
+
+#endif