/*
- * Copyright (C) 1997-2009 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 1997-2013 Andre Noll <maan@systemlinux.org>
*
* Licensed under the GPL v2. For licencing details see COPYING.
*/
/** \file afh_common.c Common audio format handler functions. */
#include <sys/mman.h> /* mmap */
-#include <sys/time.h> /* gettimeofday */
#include <sys/types.h>
-#include <dirent.h>
#include <regex.h>
#include "para.h"
#ifdef HAVE_FAAD
void aac_afh_init(struct audio_format_handler *);
#endif
+#ifdef HAVE_SPEEX
+ void spx_afh_init(struct audio_format_handler *);
+#endif
+#ifdef HAVE_FLAC
+ void flac_afh_init(struct audio_format_handler *);
+#endif
+
+#ifdef HAVE_OPUS
+ void opus_afh_init(struct audio_format_handler *);
+#endif
+
+void wma_afh_init(struct audio_format_handler *);
+
+/** The list of all status items */
+const char *status_item_list[] = {STATUS_ITEM_ARRAY};
/**
* The list of supported audio formats.
.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
+ },
+ {
+ .name = "flac",
+#ifdef HAVE_FLAC
+ .init = flac_afh_init,
+#endif
+ },
+ {
+ .name = "opus",
+#ifdef HAVE_OPUS
+ .init = opus_afh_init,
#endif
},
{
{
int i;
- PARA_INFO_LOG("supported audio formats: %s\n",
- SUPPORTED_AUDIO_FORMATS);
+ PARA_INFO_LOG("supported audio formats: %s\n", AUDIO_FORMAT_HANDLERS);
FOR_EACH_AUDIO_FORMAT(i) {
PARA_NOTICE_LOG("initializing %s handler\n",
audio_format_name(i));
{
int ret, i, format;
- afhi->header_offset = 0;
afhi->header_len = 0;
afhi->techinfo = NULL;
afhi->tags.artist = NULL;
return ret;
}
+/**
+ * Deallocate contents of a filled-in ahi structure
+ *
+ * \param afhi The structure to clear.
+ *
+ * The given pointer is kept, everything else is freed.
+ */
+void clear_afhi(struct afh_info *afhi)
+{
+ if (!afhi)
+ return;
+ free(afhi->chunk_table);
+ free(afhi->techinfo);
+ free(afhi->tags.artist);
+ free(afhi->tags.title);
+ free(afhi->tags.year);
+ free(afhi->tags.album);
+ free(afhi->tags.comment);
+}
+
/**
* Get the name of the given audio format.
*
* \param i The audio format number.
*
- * This returns a pointer to statically allocated memory so it
+ * \return This returns a pointer to statically allocated memory so it
* must not be freed by the caller.
*/
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;
}
/**
*len = afhi->chunk_table[chunk_num + 1] - pos;
}
-uint32_t afh_get_largest_chunk_size(struct afh_info *afhi)
-{
- uint32_t n, largest = 0, *ct = afhi->chunk_table;
-
- for (n = 1; n <= afhi->chunks_total; n++)
- largest = PARA_MAX(largest, ct[n] - ct[n - 1]);
- return largest;
-}
-
/**
* 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 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)
{
+ struct audio_format_handler *afh = afl + audio_format_id;
+
if (!map || !afhi || !afhi->header_len) {
*buf = NULL;
*len = 0;
return;
}
- *len = afhi->header_len;
- *buf = map + afhi->header_offset;
+ if (!afh->get_header) {
+ *len = afhi->header_len;
+ *buf = map;
+ return;
+ }
+ 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);
+}
+
+/**
+ * Pretty-print the contents of a struct afh_info into a buffer.
+ *
+ * \param audio_format_num The audio format number.
+ * \param afhi Pointer to the structure that contains the information.
+ * \param result Pretty-printed ahfi is here after the call.
+ *
+ * The \a result buffer is dynamically allocated and should be freed by the
+ * caller.
+ *
+ * \return The number of bytes. This function never fails.
+ */
+unsigned afh_get_afhi_txt(int audio_format_num, struct afh_info *afhi, char **result)
+{
+ return xasprintf(result, "%s: %dkbit/s\n" /* bitrate */
+ "%s: %s\n" /* format */
+ "%s: %dHz\n" /* frequency */
+ "%s: %d\n" /* channels */
+ "%s: %lu\n" /* seconds total */
+ "%s: %lu: %lu\n" /* chunk time */
+ "%s: %lu\n" /* num chunks */
+ "%s: %s\n" /* techinfo */
+ "%s: %s\n" /* artist */
+ "%s: %s\n" /* title */
+ "%s: %s\n" /* year */
+ "%s: %s\n" /* album */
+ "%s: %s\n", /* comment */
+ status_item_list[SI_BITRATE], afhi->bitrate,
+ status_item_list[SI_FORMAT], audio_format_name(audio_format_num),
+ status_item_list[SI_FREQUENCY], afhi->frequency,
+ status_item_list[SI_CHANNELS], afhi->channels,
+ status_item_list[SI_SECONDS_TOTAL], afhi->seconds_total,
+ status_item_list[SI_CHUNK_TIME], (long unsigned)afhi->chunk_tv.tv_sec,
+ (long unsigned)afhi->chunk_tv.tv_usec,
+ status_item_list[SI_NUM_CHUNKS], afhi->chunks_total,
+ status_item_list[SI_TECHINFO], afhi->techinfo? afhi->techinfo : "",
+ status_item_list[SI_ARTIST], afhi->tags.artist? afhi->tags.artist : "",
+ status_item_list[SI_TITLE], afhi->tags.title? afhi->tags.title : "",
+ status_item_list[SI_YEAR], afhi->tags.year? afhi->tags.year : "",
+ status_item_list[SI_ALBUM], afhi->tags.album? afhi->tags.album : "",
+ status_item_list[SI_COMMENT], afhi->tags.comment? afhi->tags.comment : ""
+ );
}
projects / paraslash.git / blobdiff