X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=afh_common.c;h=769674134b0f16d88bbe856d2daf972e54ed4c1b;hp=07e6a78c3aa4bcaf61e8645019c262473dbca023;hb=37ae4ca0d9fb24ee2a35ac3786bcd3d8a6272535;hpb=753b26859be2150d3f4e7840a86412f96f60627a diff --git a/afh_common.c b/afh_common.c index 07e6a78c..76967413 100644 --- a/afh_common.c +++ b/afh_common.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 1997-2008 Andre Noll + * Copyright (C) 1997-2011 Andre Noll * * Licensed under the GPL v2. For licencing details see COPYING. */ @@ -9,7 +9,7 @@ #include /* mmap */ #include /* gettimeofday */ #include -#include +#include #include "para.h" #include "error.h" @@ -25,7 +25,11 @@ void mp3_init(struct audio_format_handler *); #ifdef HAVE_FAAD void aac_afh_init(struct audio_format_handler *); #endif +#ifdef HAVE_SPEEX + void spx_afh_init(struct audio_format_handler *); +#endif +void wma_afh_init(struct audio_format_handler *); /** * The list of supported audio formats. * @@ -53,6 +57,16 @@ static struct audio_format_handler afl[] = { .name = "aac", #ifdef HAVE_FAAD .init = aac_afh_init, +#endif + }, + { + .name = "wma", + .init = wma_afh_init, + }, + { + .name = "spx", +#ifdef HAVE_SPEEX + .init = spx_afh_init, #endif }, { @@ -83,7 +97,7 @@ void afh_init(void) int i; PARA_INFO_LOG("supported audio formats: %s\n", - SUPPORTED_AUDIO_FORMATS); + SERVER_AUDIO_FORMATS); FOR_EACH_AUDIO_FORMAT(i) { PARA_NOTICE_LOG("initializing %s handler\n", audio_format_name(i)); @@ -91,15 +105,14 @@ void afh_init(void) } } - /** * Guess the audio format judging from filename. * * \param name The filename. * - * \return This function returns -1 if it has no idea what kind of audio - * file this might be. Otherwise the (non-negative) number of the audio format - * is returned. + * \return This function returns \p -E_AUDIO_FORMAT if it has no idea what kind + * of audio file this might be. Otherwise the (non-negative) number of the + * audio format is returned. */ int guess_audio_format(const char *name) { @@ -119,22 +132,7 @@ int guess_audio_format(const char *name) return i; } } - return -1; -} - -char *make_taginfo(char *title, char *artist, char *album, char *year, - char *comment) -{ - return make_message("%s: %s, by %s\n" /* taginfo1 */ - "%s: A: %s, Y: %s, C: %s\n", /* taginfo 2*/ - status_item_list[SI_TAGINFO1], - (title && *title)? title : "(title tag not set)", - (artist && *artist)? artist : "(artist tag not set)", - status_item_list[SI_TAGINFO2], - (album && *album)? album : "(album tag not set)", - (year && *year)? year : "????", - (comment && *comment)? comment : "(comment tag not set)" - ); + return -E_AUDIO_FORMAT; } /** @@ -161,24 +159,53 @@ int compute_afhi(const char *path, char *data, size_t size, int fd, { int ret, i, format; - afhi->header_offset = 0; afhi->header_len = 0; + afhi->techinfo = NULL; + afhi->tags.artist = NULL; + afhi->tags.title = NULL; + afhi->tags.year = NULL; + afhi->tags.album = NULL; + afhi->tags.comment = NULL; format = guess_audio_format(path); if (format >= 0) { ret = afl[format].get_file_info(data, size, fd, afhi); - if (ret >= 0) - return format; + if (ret >= 0) { + ret = format; + goto success; + } } FOR_EACH_AUDIO_FORMAT(i) { if (i == format) /* we already tried this one to no avail */ continue; ret = afl[i].get_file_info(data, size, fd, afhi); - if (ret >= 0) - return i; + if (ret >= 0) { + ret = i; + goto success; + } PARA_WARNING_LOG("%s\n", para_strerror(-ret)); } return -E_AUDIO_FORMAT; +success: + if (!afhi->techinfo) + afhi->techinfo = para_strdup(NULL); + if (!afhi->tags.artist) + afhi->tags.artist = para_strdup(NULL); + if (!afhi->tags.title) + afhi->tags.title = para_strdup(NULL); + if (!afhi->tags.year) + afhi->tags.year = para_strdup(NULL); + if (!afhi->tags.album) + afhi->tags.album = para_strdup(NULL); + if (!afhi->tags.comment) + afhi->tags.comment = para_strdup(NULL); + PARA_DEBUG_LOG("techinfo: %s\n", afhi->techinfo); + PARA_DEBUG_LOG("artist: %s\n", afhi->tags.artist); + PARA_DEBUG_LOG("title: %s\n", afhi->tags.title); + PARA_DEBUG_LOG("year: %s\n", afhi->tags.year); + PARA_DEBUG_LOG("album: %s\n", afhi->tags.album); + PARA_DEBUG_LOG("comment: %s\n", afhi->tags.comment); + return ret; } /** @@ -191,12 +218,23 @@ int compute_afhi(const char *path, char *data, size_t size, int fd, */ const char *audio_format_name(int i) { - //PARA_NOTICE_LOG("array size: %u¸ requested: %d\n", ARRAY_SIZE(afl), i); - assert(i < 0 || i < ARRAY_SIZE(afl) - 1); - return i >= 0? afl[i].name : "(none)"; + if (i < 0 || i >= ARRAY_SIZE(afl) - 1) + return "???"; + return afl[i].name; } - +/** + * Get one chunk of audio data. + * + * \param chunk_num The number of the chunk to get. + * \param afhi Describes the audio file. + * \param map The memory mapped audio file. + * \param buf Result pointer. + * \param len The length of the chunk in bytes. + * + * Upon return, \a buf will point so memory inside \a map. The returned buffer + * must therefore not be freed by the caller. + */ void afh_get_chunk(long unsigned chunk_num, struct afh_info *afhi, void *map, const char **buf, size_t *len) { @@ -209,20 +247,52 @@ void afh_get_chunk(long unsigned chunk_num, struct afh_info *afhi, * Get the header of an audio file. * * \param afhi The audio file handler data describing the file. + * \param audio_format_id Determines the audio format handler. * \param map The data of the audio file. + * \param mapsize The amount of bytes of the mmapped audio file. * \param buf The length of the header is stored here. * \param len Points to a buffer containing the header on return. * * This function sets \a buf to \p NULL and \a len to zero if \a map or \a * afhi is \p NULL, or if the current audio format does not need special - * header treamtment. + * header treatment. + * + * Otherwise, it is checked whether the audio format handler given by + * \a audio_format_id defines a ->get_header() method. If it does, this + * method is called to obtain the header. If ->get_header() is \p NULL, + * a reference to the first chunk of the audio file is returned. + * + * Once the header is no longer needed, the caller must call \ref + * afh_free_header() to free the resources allocated by this function. */ -void afh_get_header(struct afh_info *afhi, void *map, const char **buf, size_t *len) +void afh_get_header(struct afh_info *afhi, uint8_t audio_format_id, + void *map, size_t mapsize, char **buf, size_t *len) { - if (!map || !afhi || ! afhi->header_len) { + struct audio_format_handler *afh = afl + audio_format_id; + + if (!map || !afhi || !afhi->header_len) { *buf = NULL; *len = 0; + return; + } + if (!afh->get_header) { + *len = afhi->header_len; + *buf = map; + return; } - *len = afhi->header_len; - *buf = map + afhi->header_offset; + afh->get_header(map, mapsize, buf, len); +} + +/** + * Deallocate any resources obtained from afh_get_header(). + * + * \param header_buf Pointer obtained via afh_get_header(). + * \param audio_format_id Determines the audio format handler. + */ +void afh_free_header(char *header_buf, uint8_t audio_format_id) +{ + struct audio_format_handler *afh = afl + audio_format_id; + + if (afh->get_header) + free(header_buf); }