Fix afs shutdown.

[paraslash.git] / afh_common.c

diff --git a/afh_common.c b/afh_common.c
index 311e0c13046de441f3b01bc470e355fa2670ea5a..feee4c8d3dc14b492a65271daa5cffd9a90e93a5 100644 (file)
--- a/afh_common.c
+++ b/afh_common.c
@@ -1,5 +1,5 @@
 /*
 /*

- * Copyright (C) 1997-2007 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 1997-2008 Andre Noll <maan@systemlinux.org>

  *
  * Licensed under the GPL v2. For licencing details see COPYING.
  */
  *
  * Licensed under the GPL v2. For licencing details see COPYING.
  */


@@ -75,6 +75,9 @@ static inline int next_audio_format(int format)
 /** Iterate over each supported audio format. */
 #define FOR_EACH_AUDIO_FORMAT(i) for (i = 0; afl[i].name; i = next_audio_format(i))
 
 /** Iterate over each supported audio format. */
 #define FOR_EACH_AUDIO_FORMAT(i) for (i = 0; afl[i].name; i = next_audio_format(i))
 

+/**
+ * Call the init function of each supported audio format handler.
+ */

 void afh_init(void)
 {
        int i;
 void afh_init(void)
 {
        int i;


@@ -116,7 +119,7 @@ int guess_audio_format(const char *name)
                        return i;
                }
        }
                        return i;
                }
        }

-       return -E_BAD_AUDIO_FILE_SUFFIX;
+       return -1;

 }
 
 /**
 }
 
 /**


@@ -138,9 +141,13 @@ int guess_audio_format(const char *name)
  * one is found that can handle the file.
  */
 int compute_afhi(const char *path, char *data, size_t size,
  * one is found that can handle the file.
  */
 int compute_afhi(const char *path, char *data, size_t size,

-               struct audio_format_info *afhi)
+               struct afh_info *afhi)

 {
 {

-       int ret, i, format = guess_audio_format(path);
+       int ret, i, format;
+
+       afhi->header_offset = 0;
+       afhi->header_len = 0;
+       format = guess_audio_format(path);

 
        if (format >= 0) {
                ret = afl[format].get_file_info(data, size, afhi);
 
        if (format >= 0) {
                ret = afl[format].get_file_info(data, size, afhi);


@@ -153,7 +160,7 @@ int compute_afhi(const char *path, char *data, size_t size,
                ret = afl[i].get_file_info(data, size, afhi);
                if (ret >= 0)
                        return i;
                ret = afl[i].get_file_info(data, size, afhi);
                if (ret >= 0)
                        return i;

-               PARA_WARNING_LOG("%s\n", PARA_STRERROR(-ret));
+               PARA_WARNING_LOG("%s\n", para_strerror(-ret));

        }
        return -E_AUDIO_FORMAT;
 }
        }
        return -E_AUDIO_FORMAT;
 }


@@ -173,3 +180,33 @@ const char *audio_format_name(int i)
        return i >= 0?  afl[i].name : "(none)";
 }
 
        return i >= 0?  afl[i].name : "(none)";
 }
 

+
+void afh_get_chunk(long unsigned chunk_num, struct afh_info *afhi,
+               void *map, char **buf, size_t *len)
+{
+       size_t pos = afhi->chunk_table[chunk_num];
+       *buf = map + pos;
+       *len = afhi->chunk_table[chunk_num + 1] - pos;
+}
+
+/**
+ * Get the header of an audio file.
+ *
+ * \param afhi The audio file handler data describing the file.
+ * \param map The data of the 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.
+ */
+void afh_get_header(struct afh_info *afhi, void *map, char **buf, size_t *len)
+{
+       if (!map || !afhi || ! afhi->header_len) {
+               *buf = NULL;
+               *len = 0;
+       }
+       *len = afhi->header_len;
+       *buf = map + afhi->header_offset;
+}