ported musepack plugin to libmpcdev SV8 (r435)

1 files changed, 144 insertions, 0 deletions

diff --git a/plugins/musepack/mpc_reader.c b/plugins/musepack/mpc_reader.c
new file mode 100644
index 00000000..e1d151fe
--- /dev/null
+++ b/plugins/musepack/mpc_reader.c
@@ -0,0 +1,144 @@
+/*
+  Copyright (c) 2005-2009, The Musepack Development Team
+  All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions are
+  met:
+
+  * Redistributions of source code must retain the above copyright
+  notice, this list of conditions and the following disclaimer.
+
+  * Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the following
+  disclaimer in the documentation and/or other materials provided
+  with the distribution.
+
+  * Neither the name of the The Musepack Development Team nor the
+  names of its contributors may be used to endorse or promote
+  products derived from this software without specific prior
+  written permission.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+/// \file mpc_reader.c
+/// Contains implementations for simple file-based mpc_reader
+#include <mpc/reader.h>
+#include "internal.h"
+#include <stdio.h>
+
+#define STDIO_MAGIC 0xF34B963C ///< Just a random safe-check value...
+typedef struct mpc_reader_stdio_t {
+    FILE       *p_file;
+    int         file_size;
+    mpc_bool_t  is_seekable;
+    mpc_int32_t magic;
+} mpc_reader_stdio;
+
+/// mpc_reader callback implementations
+static mpc_int32_t
+read_stdio(mpc_reader *p_reader, void *ptr, mpc_int32_t size)
+{
+    mpc_reader_stdio *p_stdio = (mpc_reader_stdio*) p_reader->data;
+    if(p_stdio->magic != STDIO_MAGIC) return MPC_STATUS_FILE;
+    return (mpc_int32_t) fread(ptr, 1, size, p_stdio->p_file);
+}
+
+static mpc_bool_t
+seek_stdio(mpc_reader *p_reader, mpc_int32_t offset)
+{
+    mpc_reader_stdio *p_stdio = (mpc_reader_stdio*) p_reader->data;
+    if(p_stdio->magic != STDIO_MAGIC) return MPC_FALSE;
+    return p_stdio->is_seekable ? fseek(p_stdio->p_file, offset, SEEK_SET) == 0 : MPC_FALSE;
+}
+
+static mpc_int32_t
+tell_stdio(mpc_reader *p_reader)
+{
+    mpc_reader_stdio *p_stdio = (mpc_reader_stdio*) p_reader->data;
+    if(p_stdio->magic != STDIO_MAGIC) return MPC_STATUS_FILE;
+    return ftell(p_stdio->p_file);
+}
+
+static mpc_int32_t
+get_size_stdio(mpc_reader *p_reader)
+{
+    mpc_reader_stdio *p_stdio = (mpc_reader_stdio*) p_reader->data;
+    if(p_stdio->magic != STDIO_MAGIC) return MPC_STATUS_FILE;
+    return p_stdio->file_size;
+}
+
+static mpc_bool_t
+canseek_stdio(mpc_reader *p_reader)
+{
+    mpc_reader_stdio *p_stdio = (mpc_reader_stdio*) p_reader->data;
+    if(p_stdio->magic != STDIO_MAGIC) return MPC_FALSE;
+    return p_stdio->is_seekable;
+}
+
+mpc_status
+mpc_reader_init_stdio_stream(mpc_reader * p_reader, FILE * p_file)
+{
+    mpc_reader tmp_reader; mpc_reader_stdio *p_stdio; int err;
+
+    p_stdio = NULL;
+    memset(&tmp_reader, 0, sizeof tmp_reader);
+    p_stdio = malloc(sizeof *p_stdio);
+    if(!p_stdio) return MPC_STATUS_FILE;
+    memset(p_stdio, 0, sizeof *p_stdio);
+
+    p_stdio->magic  = STDIO_MAGIC;
+    p_stdio->p_file = p_file;
+    p_stdio->is_seekable = MPC_TRUE;
+    err = fseek(p_stdio->p_file, 0, SEEK_END);
+    if(err < 0) goto clean;
+    err = ftell(p_stdio->p_file);
+    if(err < 0) goto clean;
+    p_stdio->file_size = err;
+    err = fseek(p_stdio->p_file, 0, SEEK_SET);
+    if(err < 0) goto clean;
+
+    tmp_reader.data     = p_stdio;
+    tmp_reader.canseek  = canseek_stdio;
+    tmp_reader.get_size = get_size_stdio;
+    tmp_reader.read     = read_stdio;
+    tmp_reader.seek     = seek_stdio;
+    tmp_reader.tell     = tell_stdio;
+
+    *p_reader = tmp_reader;
+    return MPC_STATUS_OK;
+clean:
+    if(p_stdio && p_stdio->p_file)
+        fclose(p_stdio->p_file);
+    free(p_stdio);
+    return MPC_STATUS_FILE;
+}
+
+mpc_status
+mpc_reader_init_stdio(mpc_reader *p_reader, const char *filename)
+{
+	FILE * stream = fopen(filename, "rb");
+	if (stream == NULL) return MPC_STATUS_FILE;
+	return mpc_reader_init_stdio_stream(p_reader,stream);
+}
+
+void
+mpc_reader_exit_stdio(mpc_reader *p_reader)
+{
+    mpc_reader_stdio *p_stdio = (mpc_reader_stdio*) p_reader->data;
+    if(p_stdio->magic != STDIO_MAGIC) return;
+    fclose(p_stdio->p_file);
+    free(p_stdio);
+    p_reader->data = NULL;
+}
+