X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=afs.h;h=0b35f3c7f2c9b5b028d0e4973efca0a580bb10fc;hp=c34f88176baf1ab8113aa2797433b5cac24b3969;hb=517c7292b342a7339c0b5d3d066a07b88efdf77a;hpb=ccf42979a31a56e991b5c6d7d4043381f7487d6e diff --git a/afs.h b/afs.h index c34f8817..0b35f3c7 100644 --- a/afs.h +++ b/afs.h @@ -1,144 +1,183 @@ -/* - * Copyright (C) 2005-2006 Andre Noll - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA. - */ - -/** \file afs.h functions and structures for audio format handling (para_server) */ - -/** \cond */ -#ifdef HAVE_OGGVORBIS -#define OV_AUDIO_FORMAT " ogg" -#define OV_AUDIO_FORMAT_ARRAY , "ogg" -#else -#define OV_AUDIO_FORMAT "" -#define OV_AUDIO_FORMAT_ARRAY -#endif - -#ifdef HAVE_FAAD -#define AAC_AUDIO_FORMAT " aac" -#define AAC_AUDIO_FORMAT_ARRAY , "aac" -#else -#define AAC_AUDIO_FORMAT "" -#define AAC_AUDIO_FORMAT_ARRAY -#endif - -#define SUPPORTED_AUDIO_FORMATS "mp3" OV_AUDIO_FORMAT AAC_AUDIO_FORMAT -#define SUPPORTED_AUDIO_FORMATS_ARRAY "mp3" OV_AUDIO_FORMAT_ARRAY \ - AAC_AUDIO_FORMAT_ARRAY, NULL - -/* status flags */ -#define AFS_NOMORE 1 -#define AFS_NEXT 2 -#define AFS_REPOS 4 -#define AFS_PLAYING 8 -#define DBT_CHANGE 16 -/** \endcond */ - -/** - * structure for audio format handling - * - * There's exactly 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 all the other function pointers. - */ -struct audio_format_handler { - /** - * name of the audio format - */ - const char *name; - /** - * typical file endings for files that can be handled by this afh. - */ - const char **suffixes; - /** - * pointer to the audio format handler's init function - * - * Must initialize all function pointers and is assumed to succeed. - */ - void (*init)(struct audio_format_handler*); - /** - * period of time between sending data chunks - */ - struct timeval chunk_tv; /* length of one chunk of data */ - /** - * end of file timeout - do not load new audio file until this time - * - */ - struct timeval eof_tv; /* timeout on eof */ - /** - * Pointer to the optional get-header function. - * - * This is called from a sender in case a new client connects in the middle of - * the stream. The audio format handler may set this to NULL to indicate that - * this audio format does not need any special header treatment. If non-NULL, - * the function it points to must return a pointer to a buffer holding the - * current audio file header, together with the header length. - */ - char *(*get_header_info)(int *header_len); - /** - * check if this audio format handler can handle the file - * - * This is a pointer to a function returning whether a given file is valid for - * this audio format. A negative return value indicates that this audio format - * handler did not recognize the given file. On success, the function is - * expected to return a positive value and to fill in \arg info_str, \arg - * chunks and \arg seconds appropriately. - */ - int (*get_file_info)(FILE *audio_file, char *info_str, - long unsigned *chunks, int *seconds); - /** - * cleanup function of this audio format handler - * - * This close function should deallocate any resources - * associated with the current audio file. In particular, it is responsible - * for closing the file handle. It is assumed to succeed. - */ - void (*close_audio_file)(void); - /** - * jump to another position in the current audio file - * - * This is called if a client issued the ff or jmp command with \a request - * being the number of the next chunk that should be sent out. Must return a - * positive value on success and a negative value on errors. - */ - int (*reposition_stream)(long unsigned request); - /** - * function responsible for reading one data chunk. - * - * \a read_chunk() must return a pointer to the next chunk of data that should - * be sent out, or \p NULL on errors or if the end of the file was encountered. - * - * If it returns non-NULL, \a len must contain the length of the returned - * buffer (which may be zero if nothing has to be sent for some reason). - * Otherwise, \a len is used to distinguish between the eof and the error case: - * It must be zero in the eof case, or negative if an error occcured. - */ - char * (*read_chunk)(long unsigned chunk_num, ssize_t *len); +#include +#include "osl.h" +#include "hash.h" + +struct afs_info { + uint64_t last_played; + uint64_t attributes; + uint32_t num_played; + uint32_t image_id; + uint32_t lyrics_id; + uint8_t audio_format_id; +}; + +enum afs_table_flags {TBLFLAG_SKIP_CREATE}; + +struct table_info { + const struct osl_table_description *desc; + struct osl_table *table; + enum afs_table_flags flags; +}; + +enum ls_sorting_method { + LS_SORT_BY_PATH, /* -sp (default) */ + LS_SORT_BY_SCORE, /* -ss */ + LS_SORT_BY_LAST_PLAYED, /* -sl */ + LS_SORT_BY_NUM_PLAYED, /* -sn */ + LS_SORT_BY_FREQUENCY, /* -sf */ + LS_SORT_BY_CHANNELS, /* -sc */ + LS_SORT_BY_IMAGE_ID, /* -si */ + LS_SORT_BY_LYRICS_ID, /* -sy */ + LS_SORT_BY_BITRATE, /* -sb */ + LS_SORT_BY_DURATION, /* -sd */ + LS_SORT_BY_AUDIO_FORMAT, /* -sa */ + LS_SORT_BY_HASH, /* -sh */ +}; + +enum ls_listing_mode { + LS_MODE_SHORT, + LS_MODE_LONG, + LS_MODE_VERBOSE, + LS_MODE_MBOX +}; + +enum ls_flags { + LS_FLAG_FULL_PATH = 1, + LS_FLAG_ADMISSIBLE_ONLY = 2, + LS_FLAG_REVERSE = 4, +}; + +struct ls_widths { + unsigned short score_width; + unsigned short image_id_width; + unsigned short lyrics_id_width; + unsigned short bitrate_width; + unsigned short frequency_width; + unsigned short duration_width; + unsigned short num_played_width; +}; + +struct ls_data { + struct audio_format_info afhi; + struct afs_info afsi; + char *path; + long score; + HASH_TYPE *hash; +}; + +struct ls_options { + unsigned flags; + enum ls_sorting_method sorting; + enum ls_listing_mode mode; + char **patterns; + int num_patterns; + struct ls_widths widths; + uint32_t array_size; + uint32_t num_matching_paths; + struct ls_data *data; + struct ls_data **data_ptr; }; -extern struct audio_format_handler afl[]; -#define FOR_EACH_AUDIO_FORMAT(i) for (i = 0; afl[i].name; i++) - -void afs_init(void); -void afs_send_chunk(void); -struct timeval *afs_preselect(void); -const char *audio_format_name(int); -unsigned int afs_playing(void); -unsigned int afs_next(void); -unsigned int afs_repos(void); -unsigned int afs_paused(void); +enum play_mode {PLAY_MODE_MOOD, PLAY_MODE_PLAYLIST}; + +struct audio_file_data { + enum play_mode current_play_mode; + long score; + struct afs_info afsi; + struct audio_format_info afhi; + char *path; + struct osl_object map; +}; + +/* afs */ +typedef int callback_function(const struct osl_object *, struct osl_object *); +__noreturn int afs_init(uint32_t cookie, int socket_fd); +int send_callback_request(callback_function *f, struct osl_object *query, + struct osl_object *result); +int send_standard_callback_request(int argc, char * const * const argv, + callback_function *f, struct osl_object *result); +int send_option_arg_callback_request(struct osl_object *options, + int argc, char * const * const argv, callback_function *f, + struct osl_object *result); +int stdin_command(struct osl_object *arg_obj, callback_function *f, + unsigned max_len, struct osl_object *result); +int string_compare(const struct osl_object *obj1, const struct osl_object *obj2); +int para_atol(const char *str, long *result); +int open_next_audio_file(struct audio_file_data *afd); +int close_audio_file(struct audio_file_data *afd); + +/* score */ +int score_init(struct table_info *ti, const char *db); +void score_shutdown(enum osl_close_flags flags); +int admissible_file_loop(void *data, osl_rbtree_loop_func *func); +int admissible_file_loop_reverse(void *data, osl_rbtree_loop_func *func); +int score_get_best(struct osl_row **aft_row, long *score); +int get_score_and_aft_row(struct osl_row *score_row, long *score, struct osl_row **aft_row); +int score_add(const struct osl_row *row, long score); +int score_update(const struct osl_row *aft_row, long new_score); +int get_num_admissible_files(unsigned *num); +int score_delete(const struct osl_row *aft_row); +int row_belongs_to_score_table(const struct osl_row *aft_row); + +/* attribute */ +int attribute_init(struct table_info *ti, const char *db); +void attribute_shutdown(enum osl_close_flags flags); +void get_attribute_bitmap(const uint64_t *atts, char *buf); /* needed by com_ls() */ +int get_attribute_bitnum_by_name(const char *att_name, unsigned char *bitnum); +int get_attribute_text(uint64_t *atts, const char *delim, char **text); + +/* aft */ +int aft_init(struct table_info *ti, const char *db); +void aft_shutdown(enum osl_close_flags flags); +int aft_get_row_of_path(char *path, struct osl_row **row); +int open_and_update_audio_file(struct osl_row *aft_row, struct audio_file_data *afd); +int load_afsi(struct afs_info *afsi, struct osl_object *obj); +void save_afsi(struct afs_info *afsi, struct osl_object *obj); +int get_afsi_of_row(const struct osl_row *row, struct afs_info *afsi); +int get_audio_file_path_of_row(const struct osl_row *row, char **path); +int get_afsi_object_of_row(const struct osl_row *row, struct osl_object *obj); +int audio_file_loop(void *private_data, osl_rbtree_loop_func *func); + +/* mood */ +int mood_open(char *mood_name); +void mood_close(void); +int mood_update_audio_file(const struct osl_row *aft_row, struct afs_info *old_afsi); +int mood_reload(void); +int mood_delete_audio_file(const struct osl_row *aft_row); + + +/* playlist */ +int playlist_open(char *name); +void playlist_close(void); +int playlist_update_audio_file(struct osl_row *aft_row); + +/** evaluates to 1 if x < y, to -1 if x > y and to 0 if x == y */ +#define NUM_COMPARE(x, y) ((int)((x) < (y)) - (int)((x) > (y))) + + +#define DECLARE_BLOB_SYMBOLS(table_name, cmd_prefix) \ + int table_name ## _init(struct table_info *ti, const char *db); \ + void table_name ## _shutdown(enum osl_close_flags flags); \ + int cmd_prefix ## _get_name_by_id(uint32_t id, char **name); \ + extern struct osl_table *table_name ## _table; + +DECLARE_BLOB_SYMBOLS(lyrics, lyr); +DECLARE_BLOB_SYMBOLS(images, img); +DECLARE_BLOB_SYMBOLS(moods, mood); +DECLARE_BLOB_SYMBOLS(playlists, pl); + +enum blob_table_columns {BLOBCOL_ID, BLOBCOL_NAME, BLOBCOL_DEF, NUM_BLOB_COLUMNS}; +#define DEFINE_BLOB_TABLE_DESC(table_name) \ + struct osl_table_description table_name ## _table_desc = { \ + .name = #table_name, \ + .num_columns = NUM_BLOB_COLUMNS, \ + .flags = OSL_LARGE_TABLE, \ + .column_descriptions = blob_cols \ + }; + +#define DEFINE_BLOB_TABLE_PTR(table_name) struct osl_table *table_name ## _table; + +#define INIT_BLOB_TABLE(table_name) \ + DEFINE_BLOB_TABLE_DESC(table_name); \ + DEFINE_BLOB_TABLE_PTR(table_name);