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-rw-r--r--src/IcyMetaDataParser.cxx (renamed from src/icy_metadata.c)93
-rw-r--r--src/IcyMetaDataParser.hxx83
-rw-r--r--src/icy_metadata.h99
-rw-r--r--src/input/CurlInputPlugin.cxx24
4 files changed, 136 insertions, 163 deletions
diff --git a/src/icy_metadata.c b/src/IcyMetaDataParser.cxx
index 32953e69f..cda63da44 100644
--- a/src/icy_metadata.c
+++ b/src/IcyMetaDataParser.cxx
@@ -1,5 +1,5 @@
/*
- * Copyright (C) 2003-2011 The Music Player Daemon Project
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
@@ -18,7 +18,7 @@
*/
#include "config.h"
-#include "icy_metadata.h"
+#include "IcyMetaDataParser.hxx"
#include "tag.h"
#include <glib.h>
@@ -30,46 +30,37 @@
#define G_LOG_DOMAIN "icy_metadata"
void
-icy_deinit(struct icy_metadata *im)
+IcyMetaDataParser::Reset()
{
- if (!icy_defined(im))
+ if (!IsDefined())
return;
- if (im->data_rest == 0 && im->meta_size > 0)
- g_free(im->meta_data);
+ if (data_rest == 0 && meta_size > 0)
+ g_free(meta_data);
- if (im->tag != NULL)
- tag_free(im->tag);
-}
-
-void
-icy_reset(struct icy_metadata *im)
-{
- if (!icy_defined(im))
- return;
-
- icy_deinit(im);
+ if (tag != nullptr)
+ tag_free(tag);
- im->data_rest = im->data_size;
- im->meta_size = 0;
+ data_rest = data_size;
+ meta_size = 0;
}
size_t
-icy_data(struct icy_metadata *im, size_t length)
+IcyMetaDataParser::Data(size_t length)
{
assert(length > 0);
- if (!icy_defined(im))
+ if (!IsDefined())
return length;
- if (im->data_rest == 0)
+ if (data_rest == 0)
return 0;
- if (length >= im->data_rest) {
- length = im->data_rest;
- im->data_rest = 0;
+ if (length >= data_rest) {
+ length = data_rest;
+ data_rest = 0;
} else
- im->data_rest -= length;
+ data_rest -= length;
return length;
}
@@ -94,7 +85,7 @@ icy_parse_tag_item(struct tag *tag, const char *item)
{
gchar **p = g_strsplit(item, "=", 0);
- if (p[0] != NULL && p[1] != NULL) {
+ if (p[0] != nullptr && p[1] != nullptr) {
if (strcmp(p[0], "StreamTitle") == 0)
icy_add_item(tag, TAG_TITLE, p[1]);
else
@@ -110,7 +101,7 @@ icy_parse_tag(const char *p)
struct tag *tag = tag_new();
gchar **items = g_strsplit(p, ";", 0);
- for (unsigned i = 0; items[i] != NULL; ++i)
+ for (unsigned i = 0; items[i] != nullptr; ++i)
icy_parse_tag_item(tag, items[i]);
g_strfreev(items);
@@ -119,21 +110,21 @@ icy_parse_tag(const char *p)
}
size_t
-icy_meta(struct icy_metadata *im, const void *data, size_t length)
+IcyMetaDataParser::Meta(const void *data, size_t length)
{
- const unsigned char *p = data;
+ const unsigned char *p = (const unsigned char *)data;
- assert(icy_defined(im));
- assert(im->data_rest == 0);
+ assert(IsDefined());
+ assert(data_rest == 0);
assert(length > 0);
- if (im->meta_size == 0) {
+ if (meta_size == 0) {
/* read meta_size from the first byte of a meta
block */
- im->meta_size = *p++ * 16;
- if (im->meta_size == 0) {
+ meta_size = *p++ * 16;
+ if (meta_size == 0) {
/* special case: no metadata */
- im->data_rest = im->data_size;
+ data_rest = data_size;
return 1;
}
@@ -143,39 +134,39 @@ icy_meta(struct icy_metadata *im, const void *data, size_t length)
/* initialize metadata reader, allocate enough
memory (+1 for the null terminator) */
- im->meta_position = 0;
- im->meta_data = g_malloc(im->meta_size + 1);
+ meta_position = 0;
+ meta_data = (char *)g_malloc(meta_size + 1);
}
- assert(im->meta_position < im->meta_size);
+ assert(meta_position < meta_size);
- if (length > im->meta_size - im->meta_position)
- length = im->meta_size - im->meta_position;
+ if (length > meta_size - meta_position)
+ length = meta_size - meta_position;
- memcpy(im->meta_data + im->meta_position, p, length);
- im->meta_position += length;
+ memcpy(meta_data + meta_position, p, length);
+ meta_position += length;
if (p != data)
/* re-add the first byte (which contained meta_size) */
++length;
- if (im->meta_position == im->meta_size) {
+ if (meta_position == meta_size) {
/* null-terminate the string */
- im->meta_data[im->meta_size] = 0;
+ meta_data[meta_size] = 0;
/* parse */
- if (im->tag != NULL)
- tag_free(im->tag);
+ if (tag != nullptr)
+ tag_free(tag);
- im->tag = icy_parse_tag(im->meta_data);
- g_free(im->meta_data);
+ tag = icy_parse_tag(meta_data);
+ g_free(meta_data);
/* change back to normal data mode */
- im->meta_size = 0;
- im->data_rest = im->data_size;
+ meta_size = 0;
+ data_rest = data_size;
}
return length;
diff --git a/src/IcyMetaDataParser.hxx b/src/IcyMetaDataParser.hxx
new file mode 100644
index 000000000..6ccc73f52
--- /dev/null
+++ b/src/IcyMetaDataParser.hxx
@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef MPD_ICY_META_DATA_PARSER_HXX
+#define MPD_ICY_META_DATA_PARSER_HXX
+
+#include <stddef.h>
+
+class IcyMetaDataParser {
+ size_t data_size, data_rest;
+
+ size_t meta_size, meta_position;
+ char *meta_data;
+
+ struct tag *tag;
+
+public:
+ IcyMetaDataParser():data_size(0) {}
+ ~IcyMetaDataParser() {
+ Reset();
+ }
+
+ /**
+ * Initialize an enabled icy_metadata object with the specified
+ * data_size (from the icy-metaint HTTP response header).
+ */
+ void Start(size_t _data_size) {
+ data_size = data_rest = _data_size;
+ meta_size = 0;
+ tag = nullptr;
+ }
+
+ /**
+ * Resets the icy_metadata. Call this after rewinding the stream.
+ */
+ void Reset();
+
+ /**
+ * Checks whether the icy_metadata object is enabled.
+ */
+ bool IsDefined() const {
+ return data_size > 0;
+ }
+
+ /**
+ * Evaluates data. Returns the number of bytes of normal data which
+ * can be read by the caller, but not more than "length". If the
+ * return value is smaller than "length", the caller should invoke
+ * icy_meta().
+ */
+ size_t Data(size_t length);
+
+ /**
+ * Reads metadata from the stream. Returns the number of bytes
+ * consumed. If the return value is smaller than "length", the caller
+ * should invoke icy_data().
+ */
+ size_t Meta(const void *data, size_t length);
+
+ struct tag *ReadTag() {
+ struct tag *result = tag;
+ tag = nullptr;
+ return result;
+ }
+};
+
+#endif
diff --git a/src/icy_metadata.h b/src/icy_metadata.h
deleted file mode 100644
index 9797122ca..000000000
--- a/src/icy_metadata.h
+++ /dev/null
@@ -1,99 +0,0 @@
-/*
- * Copyright (C) 2003-2011 The Music Player Daemon Project
- * http://www.musicpd.org
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#ifndef ICY_METADATA_H
-#define ICY_METADATA_H
-
-#include <stdbool.h>
-#include <stddef.h>
-
-struct icy_metadata {
- size_t data_size, data_rest;
-
- size_t meta_size, meta_position;
- char *meta_data;
-
- struct tag *tag;
-};
-
-/**
- * Initialize a disabled icy_metadata object.
- */
-static inline void
-icy_clear(struct icy_metadata *im)
-{
- im->data_size = 0;
-}
-
-/**
- * Initialize an enabled icy_metadata object with the specified
- * data_size (from the icy-metaint HTTP response header).
- */
-static inline void
-icy_start(struct icy_metadata *im, size_t data_size)
-{
- im->data_size = im->data_rest = data_size;
- im->meta_size = 0;
- im->tag = NULL;
-}
-
-/**
- * Resets the icy_metadata. Call this after rewinding the stream.
- */
-void
-icy_reset(struct icy_metadata *im);
-
-void
-icy_deinit(struct icy_metadata *im);
-
-/**
- * Checks whether the icy_metadata object is enabled.
- */
-static inline bool
-icy_defined(const struct icy_metadata *im)
-{
- return im->data_size > 0;
-}
-
-/**
- * Evaluates data. Returns the number of bytes of normal data which
- * can be read by the caller, but not more than "length". If the
- * return value is smaller than "length", the caller should invoke
- * icy_meta().
- */
-size_t
-icy_data(struct icy_metadata *im, size_t length);
-
-/**
- * Reads metadata from the stream. Returns the number of bytes
- * consumed. If the return value is smaller than "length", the caller
- * should invoke icy_data().
- */
-size_t
-icy_meta(struct icy_metadata *im, const void *data, size_t length);
-
-static inline struct tag *
-icy_tag(struct icy_metadata *im)
-{
- struct tag *tag = im->tag;
- im->tag = NULL;
- return tag;
-}
-
-#endif
diff --git a/src/input/CurlInputPlugin.cxx b/src/input/CurlInputPlugin.cxx
index b329d626f..08df6cbd9 100644
--- a/src/input/CurlInputPlugin.cxx
+++ b/src/input/CurlInputPlugin.cxx
@@ -22,10 +22,10 @@
#include "input_plugin.h"
#include "conf.h"
#include "tag.h"
+#include "IcyMetaDataParser.hxx"
extern "C" {
#include "input_internal.h"
-#include "icy_metadata.h"
}
#include "IOThread.hxx"
@@ -106,7 +106,7 @@ struct input_curl {
char error[CURL_ERROR_SIZE];
/** parser for icy-metadata */
- struct icy_metadata icy_metadata;
+ IcyMetaDataParser icy;
/** the stream name from the icy-name response header */
char *meta_name;
@@ -125,7 +125,6 @@ struct input_curl {
tag(nullptr),
postponed_error(nullptr) {
input_stream_init(&base, &input_plugin_curl, url, mutex, cond);
- icy_clear(&icy_metadata);
}
~input_curl();
@@ -811,7 +810,7 @@ consume_buffer(struct buffer *buffer, size_t length)
}
static size_t
-read_from_buffer(struct icy_metadata *icy_metadata, GQueue *buffers,
+read_from_buffer(IcyMetaDataParser &icy, GQueue *buffers,
void *dest0, size_t length)
{
struct buffer *buffer = (struct buffer *)g_queue_pop_head(buffers);
@@ -827,7 +826,7 @@ read_from_buffer(struct icy_metadata *icy_metadata, GQueue *buffers,
while (true) {
size_t chunk;
- chunk = icy_data(icy_metadata, length);
+ chunk = icy.Data(length);
if (chunk > 0) {
memcpy(dest, buffer->data + buffer->consumed,
chunk);
@@ -843,8 +842,7 @@ read_from_buffer(struct icy_metadata *icy_metadata, GQueue *buffers,
assert(buffer != NULL);
}
- chunk = icy_meta(icy_metadata, buffer->data + buffer->consumed,
- length);
+ chunk = icy.Meta(buffer->data + buffer->consumed, length);
if (chunk > 0) {
buffer = consume_buffer(buffer, chunk);
@@ -866,7 +864,7 @@ read_from_buffer(struct icy_metadata *icy_metadata, GQueue *buffers,
static void
copy_icy_tag(struct input_curl *c)
{
- struct tag *tag = icy_tag(&c->icy_metadata);
+ struct tag *tag = c->icy.ReadTag();
if (tag == NULL)
return;
@@ -908,7 +906,7 @@ input_curl_read(struct input_stream *is, void *ptr, size_t size,
/* send buffer contents */
while (size > 0 && !g_queue_is_empty(c->buffers)) {
- size_t copy = read_from_buffer(&c->icy_metadata, c->buffers,
+ size_t copy = read_from_buffer(c->icy, c->buffers,
dest + nbytes, size);
nbytes += copy;
@@ -916,7 +914,7 @@ input_curl_read(struct input_stream *is, void *ptr, size_t size,
}
} while (nbytes == 0);
- if (icy_defined(&c->icy_metadata))
+ if (c->icy.IsDefined())
copy_icy_tag(c);
is->offset += (goffset)nbytes;
@@ -979,7 +977,7 @@ input_curl_headerfunction(void *ptr, size_t size, size_t nmemb, void *stream)
if (g_ascii_strcasecmp(name, "accept-ranges") == 0) {
/* a stream with icy-metadata is not seekable */
- if (!icy_defined(&c->icy_metadata))
+ if (!c->icy.IsDefined())
c->base.seekable = true;
} else if (g_ascii_strcasecmp(name, "content-length") == 0) {
char buffer[64];
@@ -1010,7 +1008,7 @@ input_curl_headerfunction(void *ptr, size_t size, size_t nmemb, void *stream)
size_t icy_metaint;
if ((size_t)(end - header) >= sizeof(buffer) ||
- icy_defined(&c->icy_metadata))
+ c->icy.IsDefined())
return size;
memcpy(buffer, value, end - value);
@@ -1020,7 +1018,7 @@ input_curl_headerfunction(void *ptr, size_t size, size_t nmemb, void *stream)
g_debug("icy-metaint=%zu", icy_metaint);
if (icy_metaint > 0) {
- icy_start(&c->icy_metadata, icy_metaint);
+ c->icy.Start(icy_metaint);
/* a stream with icy-metadata is not
seekable */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-16 13:39:45 +0000