X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=afh.h;h=dad67351a9ec6548dd464d691d9013afee0a0d6c;hp=7952809436752f19a795362469291a4996f0d468;hb=7afafb8acd2c8ad14802fd2dcfed5567c97454cb;hpb=39ec52d7bfec591dcad0d41bcdbdf6d980bf5913 diff --git a/afh.h b/afh.h index 79528094..dad67351 100644 --- a/afh.h +++ b/afh.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2005-2012 Andre Noll + * Copyright (C) 2005 Andre Noll * * Licensed under the GPL v2. For licencing details see COPYING. */ @@ -28,9 +28,9 @@ struct taginfo { /** Audio format dependent information. */ struct afh_info { /** The number of chunks this audio file contains. */ - long unsigned chunks_total; + uint32_t chunks_total; /** The length of the audio file in seconds. */ - long unsigned seconds_total; + uint32_t seconds_total; /** Audio handler specific info about the file. */ char *techinfo; /** Id3 tags, vorbis comments, aac tags. */ @@ -58,13 +58,25 @@ struct afh_info { uint16_t bitrate; }; +/** Data about the current audio file, passed from afs to server. */ +struct audio_file_data { + /** The open file descriptor to the current audio file. */ + int fd; + /** Vss needs this for streaming. */ + struct afh_info afhi; + /** Size of the largest chunk. */ + uint32_t max_chunk_size; + /** Needed to get the audio file header. */ + uint8_t audio_format_id; +}; + /** - * Structure for audio format handling. + * Structure for audio format handling. * - * There's one such struct for each supported audio format. Initially, only \a - * name and \a init are defined. During the startup process, para_server calls - * the \a init function of each audio format handler which is expected to fill - * in the other part of this struct. + * There's one such struct for each supported audio format. Initially, only \a + * name and \a init are defined. During the startup process, para_server calls + * the \a init function of each audio format handler which is expected to fill + * in the other part of this struct. */ struct audio_format_handler { /** Name of the audio format. */ @@ -76,7 +88,7 @@ struct audio_format_handler { */ void (*init)(struct audio_format_handler*); /** Typical file endings for files that can be handled by this afh. */ - const char **suffixes; + const char * const *suffixes; /** * Check if this audio format handler can handle the file. * @@ -92,6 +104,14 @@ struct audio_format_handler { struct afh_info *afi); /** Optional, used for header-rewriting. See \ref afh_get_header(). */ void (*get_header)(void *map, size_t mapsize, char **buf, size_t *len); + /** + * Write audio file with altered tags, optional. + * + * The output file descriptor has been opened by the caller and must not + * be closed in this function. + */ + int (*rewrite_tags)(const char *map, size_t mapsize, struct taginfo *tags, + int output_fd, const char *filename); }; void afh_init(void); @@ -101,7 +121,12 @@ int compute_afhi(const char *path, char *data, size_t size, 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); +int32_t afh_get_start_chunk(int32_t approx_chunk_num, + const struct afh_info *afhi); void afh_get_header(struct afh_info *afhi, uint8_t audio_format_id, void *map, size_t mapsize, char **buf, size_t *len); void afh_free_header(char *header_buf, uint8_t audio_format_id); void clear_afhi(struct afh_info *afhi); +unsigned afh_get_afhi_txt(int audio_format_num, struct afh_info *afhi, char **result); +int afh_rewrite_tags(int audio_format_id, void *map, size_t mapsize, + struct taginfo *tags, int output_fd, const char *filename);