/*
- * RIFF codec tags
+ * RIFF common functions and data
* copyright (c) 2000 Fabrice Bellard
*
* This file is part of Libav.
#include "metadata.h"
extern const AVMetadataConv ff_riff_info_conv[];
-extern const char ff_riff_tags[][5];
int64_t ff_start_tag(AVIOContext *pb, const char *tag);
void ff_end_tag(AVIOContext *pb, int64_t start);
extern const AVCodecTag ff_codec_bmp_tags[];
extern const AVCodecTag ff_codec_wav_tags[];
-unsigned int ff_codec_get_tag(const AVCodecTag *tags, enum AVCodecID id);
-enum AVCodecID ff_codec_get_id(const AVCodecTag *tags, unsigned int tag);
-void ff_parse_specific_params(AVCodecContext *stream, int *au_rate, int *au_ssize, int *au_scale);
+void ff_parse_specific_params(AVStream *st, int *au_rate, int *au_ssize, int *au_scale);
int ff_read_riff_info(AVFormatContext *s, int64_t size);
+/**
+ * Write all recognized RIFF tags from s->metadata
+ */
+void ff_riff_write_info(AVFormatContext *s);
+
+/**
+ * Write a single RIFF info tag
+ */
+void ff_riff_write_info_tag(AVIOContext *pb, const char *tag, const char *str);
+
+typedef uint8_t ff_asf_guid[16];
+
+typedef struct AVCodecGuid {
+ enum AVCodecID id;
+ ff_asf_guid guid;
+} AVCodecGuid;
+
+extern const AVCodecGuid ff_codec_wav_guids[];
+
+#define FF_PRI_GUID \
+ "%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x"
+
+#define FF_ARG_GUID(g) \
+ g[0], g[1], g[2], g[3], g[4], g[5], g[6], g[7], \
+ g[8], g[9], g[10], g[11], g[12], g[13], g[14], g[15]
+
+#define FF_MEDIASUBTYPE_BASE_GUID \
+ 0x00, 0x00, 0x10, 0x00, 0x80, 0x00, 0x00, 0xAA, 0x00, 0x38, 0x9B, 0x71
+
+static av_always_inline int ff_guidcmp(const void *g1, const void *g2)
+{
+ return memcmp(g1, g2, sizeof(ff_asf_guid));
+}
+
+static av_always_inline int ff_get_guid(AVIOContext *s, ff_asf_guid *g)
+{
+ return avio_read(s, *g, sizeof(*g));
+}
+
+enum AVCodecID ff_codec_guid_get_id(const AVCodecGuid *guids, ff_asf_guid guid);
+
#endif /* AVFORMAT_RIFF_H */