/*
- * Copyright (C) 1997-2008 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 1997-2010 Andre Noll <maan@systemlinux.org>
*
* Licensed under the GPL v2. For licencing details see COPYING.
*/
#include <sys/time.h> /* gettimeofday */
#include <sys/types.h>
#include <dirent.h>
+#include <regex.h>
#include "para.h"
#include "error.h"
void aac_afh_init(struct audio_format_handler *);
#endif
+void wma_afh_init(struct audio_format_handler *);
/**
* The list of supported audio formats.
*
.init = aac_afh_init,
#endif
},
+ {
+ .name = "wma",
+ .init = wma_afh_init,
+ },
{
.name = NULL,
}
}
}
-
/**
* 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)
{
return i;
}
}
- return -1;
+ return -E_AUDIO_FORMAT;
}
/**
* \param path The full path of the audio file.
* \param data Pointer to the contents of the (mapped) file.
* \param size The file size in bytes.
+ * \param fd The open file descriptor.
* \param afhi Result pointer.
*
* \return The number of the audio format on success, \p -E_AUDIO_FORMAT if no
* path. If this doesn't work, all other audio format handlers are tried until
* one is found that can handle the file.
*/
-int compute_afhi(const char *path, char *data, size_t size,
+int compute_afhi(const char *path, char *data, size_t size, int fd,
struct afh_info *afhi)
{
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, afhi);
- if (ret >= 0)
- return format;
+ ret = afl[format].get_file_info(data, size, fd, afhi);
+ 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, afhi);
- if (ret >= 0)
- return i;
+ ret = afl[i].get_file_info(data, size, fd, afhi);
+ 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;
}
/**
*/
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)
{
*len = afhi->chunk_table[chunk_num + 1] - pos;
}
+/**
+ * Compute the size of the largest chunk of an audio file.
+ *
+ * \param afhi The audio format handler struct containing the chunk table.
+ *
+ * \return The number of bytes of the largest chunk.
+ */
+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.
*
*
* 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.
*/
void afh_get_header(struct afh_info *afhi, void *map, const char **buf, size_t *len)
{
- if (!map || !afhi || ! afhi->header_len) {
+ if (!map || !afhi || !afhi->header_len) {
*buf = NULL;
*len = 0;
+ return;
}
*len = afhi->header_len;
*buf = map + afhi->header_offset;
projects / paraslash.git / blobdiff