/*
- * Copyright (C) 1997-2011 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 1997 Andre Noll <maan@tuebingen.mpg.de>
*
* 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 <regex.h>
#include "string.h"
#include "afh.h"
-/* The mp3 audio format handler does not need any libs. */
-void mp3_init(struct audio_format_handler *);
+typedef void afh_init_func(struct audio_format_handler *);
+/* It does not hurt to declare init functions which are not available. */
+extern afh_init_func mp3_init, ogg_init, aac_afh_init, wma_afh_init,
+ spx_afh_init, flac_afh_init, opus_afh_init;
-#ifdef HAVE_OGGVORBIS
- void ogg_init(struct audio_format_handler *);
-#endif
-#ifdef HAVE_FAAD
- void aac_afh_init(struct audio_format_handler *);
-#endif
-#ifdef HAVE_SPEEX
- void spx_afh_init(struct audio_format_handler *);
-#endif
+/** The list of all status items */
+const char *status_item_list[] = {STATUS_ITEM_ARRAY};
-void wma_afh_init(struct audio_format_handler *);
/**
* The list of supported audio formats.
*
.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",
- SERVER_AUDIO_FORMATS);
+ PARA_NOTICE_LOG("supported audio formats: %s\n", AUDIO_FORMAT_HANDLERS);
FOR_EACH_AUDIO_FORMAT(i) {
- PARA_NOTICE_LOG("initializing %s handler\n",
+ PARA_INFO_LOG("initializing %s handler\n",
audio_format_name(i));
afl[i].init(&afl[i]);
}
return ret;
}
+/**
+ * Deallocate the contents of an afh_info structure.
+ *
+ * \param afhi The structure to clear.
+ *
+ * This only frees the memory the various pointer fields of \a afhi point to.
+ * It does *not* free \a afhi itself.
+ */
+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)
return afl[i].name;
}
+static inline size_t get_chunk_len(long unsigned chunk_num,
+ const struct afh_info *afhi)
+{
+ return afhi->chunk_table[chunk_num + 1] - afhi->chunk_table[chunk_num];
+}
+
/**
* Get one chunk of audio data.
*
{
size_t pos = afhi->chunk_table[chunk_num];
*buf = map + pos;
- *len = afhi->chunk_table[chunk_num + 1] - pos;
+ *len = get_chunk_len(chunk_num, afhi);
+}
+
+/**
+ * Find a suitable start chunk.
+ *
+ * \param approx_chunk_num Upper bound for the chunk number to return.
+ * \param afhi Needed for the chunk table.
+ *
+ * \return The first non-empty chunk <= \a approx_chunk_num.
+ *
+ * \sa \ref afh_get_chunk().
+ */
+int32_t afh_get_start_chunk(int32_t approx_chunk_num,
+ const struct afh_info *afhi)
+{
+ int32_t k;
+
+ for (k = PARA_MAX(0, approx_chunk_num); k >= 0; k--)
+ if (get_chunk_len(k, afhi) > 0)
+ break;
+ return k;
}
/**
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