/*
- * Copyright (C) 2005-2007 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 2005-2009 Andre Noll <maan@systemlinux.org>
*
* Licensed under the GPL v2. For licencing details see COPYING.
*/
/** \endcond */
-/** size of the audio_file info string */
-#define AUDIO_FILE_INFO_SIZE 256
-
-/**
- * Audio format dependent information. Details vary between each audio format
- * handler.
- */
-struct audio_format_info {
+/** Audio format dependent information. */
+struct afh_info {
/** The number of chunks this audio file contains. */
long unsigned chunks_total;
/** The length of the audio file in seconds. */
long unsigned seconds_total;
/** A string that gets filled in by the audio format handler. */
- char info_string[AUDIO_FILE_INFO_SIZE];
+ char *info_string;
/**
* The table that specifies the offset of the individual pieces in
* the current audio file.
struct timeval chunk_tv;
/** End of file timeout - Do not load new audio file until this time. */
struct timeval eof_tv;
+ /**
+ * The position of the header within the audio file. Ignored if \a
+ * header_len equals zero.
+ */
+ uint32_t header_offset;
/**
* The header is needed by senders in case a new client connects in the
* middle of the stream. The length of the header defaults to zero
* treatment. The audio format handler does not need to set this to
* zero in this case.
*/
- unsigned header_len;
- /**
- * The position of the header within the audio file. Ignored if \a
- * header_len equals zero.
- */
- unsigned header_offset;
+ uint32_t header_len;
/** The number of channels. */
uint8_t channels;
- /** Frquency on Hz. */
+ /** Frequency in Hz. */
uint16_t frequency;
/** Exact meaning depends on audio format. */
uint16_t bitrate;
* valid for this audio format. A negative return value indicates that
* this audio format handler is unable to decode the given file. On
* success, the function must return a positive value and fill in the
- * given struct audio_format_info.
+ * given struct afh_info.
*
- * \sa struct audio_format_info
+ * \sa struct afh_info
*/
- int (*get_file_info)(char *map, size_t numbytes,
- struct audio_format_info *afi);
+ int (*get_file_info)(char *map, size_t numbytes, int fd,
+ struct afh_info *afi);
};
+void afh_init(void);
+int guess_audio_format(const char *name);
+int compute_afhi(const char *path, char *data, size_t size,
+ int fd, struct afh_info *afhi);
+const char *audio_format_name(int);
+void afh_get_chunk(long unsigned chunk_num, struct afh_info *afhi,
+ void *map, const char **buf, size_t *len);
+uint32_t afh_get_largest_chunk_size(struct afh_info *afhi);
+void afh_get_header(struct afh_info *afhi, void *map, const char **buf, size_t *len);
+char *make_taginfo(char *title, char *artist, char *album, char *year,
+ char *comment);