Rename directories, move files (step 1 of 2) (does not compile)

Tis drops the silly lib prefixes, and attempts to organize the tree in
a more logical way. Make the top-level directory less cluttered as
well.

Renames the following directories:
    libaf -> audio/filter
    libao2 -> audio/out
    libvo -> video/out
    libmpdemux -> demux

Split libmpcodecs:
    vf* -> video/filter
    vd*, dec_video.* -> video/decode
    mp_image*, img_format*, ... -> video/
    ad*, dec_audio.* -> audio/decode

libaf/format.* is moved to audio/ - this is similar to how mp_image.*
is located in video/.

Move most top-level .c/.h files to core. (talloc.c/.h is left on top-
level, because it's external.) Park some of the more annoying files
in compat/. Some of these are relicts from the time mplayer used
ffmpeg internals.

sub/ is not split, because it's too much of a mess (subtitle code is
mixed with OSD display and rendering).

Maybe the organization of core is not ideal: it mixes playback core
(like mplayer.c) and utility helpers (like bstr.c/h). Should the need
arise, the playback core will be moved somewhere else, while core
contains all helper and common code.

1 files changed, 207 insertions, 0 deletions

diff --git a/core/path.c b/core/path.c
new file mode 100644
index 0000000000..6002189225
--- /dev/null
+++ b/core/path.c
@@ -0,0 +1,207 @@
+/*
+ * Get path to config dir/file.
+ *
+ * Return Values:
+ *   Returns the pointer to the ALLOCATED buffer containing the
+ *   zero terminated path string. This buffer has to be FREED
+ *   by the caller.
+ *
+ * This file is part of MPlayer.
+ *
+ * MPlayer 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.
+ *
+ * MPlayer 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 MPlayer; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdbool.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include "config.h"
+#include "mp_msg.h"
+#include "path.h"
+
+#ifdef CONFIG_MACOSX_BUNDLE
+#include <CoreFoundation/CoreFoundation.h>
+#include <unistd.h>
+#elif defined(__MINGW32__)
+#include <windows.h>
+#elif defined(__CYGWIN__)
+#include <windows.h>
+#include <sys/cygwin.h>
+#endif
+
+#include "talloc.h"
+
+#include "osdep/io.h"
+
+char *get_path(const char *filename){
+	char *homedir;
+	char *buff;
+#ifdef __MINGW32__
+	static char *config_dir = "/mpv";
+#else
+	static char *config_dir = "/.mpv";
+#endif
+#if defined(__MINGW32__) || defined(__CYGWIN__)
+	char exedir[260];
+#endif
+	int len;
+#ifdef CONFIG_MACOSX_BUNDLE
+	struct stat dummy;
+	CFIndex maxlen=256;
+	CFURLRef res_url_ref=NULL;
+	CFURLRef bdl_url_ref=NULL;
+	char *res_url_path = NULL;
+	char *bdl_url_path = NULL;
+#endif
+
+	if ((homedir = getenv("MPV_HOME")) != NULL)
+		config_dir = "";
+	else if ((homedir = getenv("HOME")) == NULL)
+#if defined(__MINGW32__) || defined(__CYGWIN__)
+	/* Hack to get fonts etc. loaded outside of Cygwin environment. */
+	{
+		int i,imax=0;
+		len = (int)GetModuleFileNameA(NULL, exedir, 260);
+		for (i=0; i < len; i++)
+			if (exedir[i] =='\\')
+				{exedir[i]='/'; imax=i;}
+		exedir[imax]='\0';
+		homedir = exedir;
+	}
+#else
+	return NULL;
+#endif
+	len = strlen(homedir) + strlen(config_dir) + 1;
+	if (filename == NULL) {
+		if ((buff = malloc(len)) == NULL)
+			return NULL;
+		sprintf(buff, "%s%s", homedir, config_dir);
+	} else {
+		len += strlen(filename) + 1;
+		if ((buff = malloc(len)) == NULL)
+			return NULL;
+		sprintf(buff, "%s%s/%s", homedir, config_dir, filename);
+	}
+
+#ifdef CONFIG_MACOSX_BUNDLE
+	if (stat(buff, &dummy)) {
+
+		res_url_ref=CFBundleCopyResourcesDirectoryURL(CFBundleGetMainBundle());
+		bdl_url_ref=CFBundleCopyBundleURL(CFBundleGetMainBundle());
+
+		if (res_url_ref&&bdl_url_ref) {
+
+			res_url_path=malloc(maxlen);
+			bdl_url_path=malloc(maxlen);
+
+			while (!CFURLGetFileSystemRepresentation(res_url_ref, true, res_url_path, maxlen)) {
+				maxlen*=2;
+				res_url_path=realloc(res_url_path, maxlen);
+			}
+			CFRelease(res_url_ref);
+
+			while (!CFURLGetFileSystemRepresentation(bdl_url_ref, true, bdl_url_path, maxlen)) {
+				maxlen*=2;
+				bdl_url_path=realloc(bdl_url_path, maxlen);
+			}
+			CFRelease(bdl_url_ref);
+
+			if (strcmp(res_url_path, bdl_url_path) == 0)
+				res_url_path = NULL;
+		}
+
+		if (res_url_path&&filename) {
+			if ((strlen(filename)+strlen(res_url_path)+2)>maxlen) {
+				maxlen=strlen(filename)+strlen(res_url_path)+2;
+			}
+			free(buff);
+			buff = malloc(maxlen);
+			strcpy(buff, res_url_path);
+
+			strcat(buff,"/");
+			strcat(buff, filename);
+		}
+	}
+#endif
+	mp_msg(MSGT_GLOBAL,MSGL_V,"get_path('%s') -> '%s'\n",filename,buff);
+	return buff;
+}
+
+char *mp_basename(const char *path)
+{
+    char *s;
+
+#if HAVE_DOS_PATHS
+    s = strrchr(path, '\\');
+    if (s)
+        path = s + 1;
+    s = strrchr(path, ':');
+    if (s)
+        path = s + 1;
+#endif
+    s = strrchr(path, '/');
+    return s ? s + 1 : (char *)path;
+}
+
+struct bstr mp_dirname(const char *path)
+{
+    struct bstr ret = {(uint8_t *)path, mp_basename(path) - path};
+    if (ret.len == 0)
+        return bstr0(".");
+    return ret;
+}
+
+char *mp_path_join(void *talloc_ctx, struct bstr p1, struct bstr p2)
+{
+    if (p1.len == 0)
+        return bstrdup0(talloc_ctx, p2);
+    if (p2.len == 0)
+        return bstrdup0(talloc_ctx, p1);
+
+#if HAVE_DOS_PATHS
+    if (p2.len >= 2 && p2.start[1] == ':'
+        || p2.start[0] == '\\' || p2.start[0] == '/')
+#else
+    if (p2.start[0] == '/')
+#endif
+        return bstrdup0(talloc_ctx, p2);   // absolute path
+
+    bool have_separator;
+    int endchar1 = p1.start[p1.len - 1];
+#if HAVE_DOS_PATHS
+    have_separator = endchar1 == '/' || endchar1 == '\\'
+        || p1.len == 2 && endchar1 == ':';     // "X:" only
+#else
+    have_separator = endchar1 == '/';
+#endif
+
+    return talloc_asprintf(talloc_ctx, "%.*s%s%.*s", BSTR_P(p1),
+                           have_separator ? "" : "/", BSTR_P(p2));
+}
+
+bool mp_path_exists(const char *path)
+{
+    struct stat st;
+    return mp_stat(path, &st) == 0;
+}
+
+bool mp_path_isdir(const char *path)
+{
+    struct stat st;
+    return mp_stat(path, &st) == 0 && S_ISDIR(st.st_mode);
+}