X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Faudioanalyser.cc;h=7013d3446f515447d703ef28f84bf234856a2d5f;hb=a4935eca6dcd4e66d24fe0aee04efc4beab1a059;hp=53684c835ee391c4960cf7e37ffd4c62419b19c2;hpb=6f907ad4c03c37e9835cddaff13beca85cb9343e;p=ardour.git

diff --git a/libs/ardour/audioanalyser.cc b/libs/ardour/audioanalyser.cc
index 53684c835e..7013d3446f 100644
--- a/libs/ardour/audioanalyser.cc
+++ b/libs/ardour/audioanalyser.cc
@@ -1,14 +1,35 @@
+/*
+    Copyright (C) 2012 Paul Davis
+
+    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., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
 #include <cstring>
-#include "vamp-hostsdk/PluginLoader.h"
+
+#include <vamp-hostsdk/PluginLoader.h>
+
+#include "pbd/gstdio_compat.h"
 #include <glibmm/miscutils.h>
 #include <glibmm/fileutils.h>
-#include <glib/gstdio.h> // for g_remove()
 
 #include "pbd/error.h"
+#include "pbd/failed_constructor.h"
 
 #include "ardour/audioanalyser.h"
 #include "ardour/readable.h"
-#include "ardour/readable.h"
 
 #include <cstring>
 
@@ -24,11 +45,11 @@ AudioAnalyser::AudioAnalyser (float sr, AnalysisPluginKey key)
 	, plugin_key (key)
 {
 	/* create VAMP plugin and initialize */
-	
+
 	if (initialize_plugin (plugin_key, sample_rate)) {
 		error << string_compose (_("cannot load VAMP plugin \"%1\""), key) << endmsg;
 		throw failed_constructor();
-	} 
+	}
 }
 
 AudioAnalyser::~AudioAnalyser ()
@@ -43,19 +64,19 @@ AudioAnalyser::initialize_plugin (AnalysisPluginKey key, float sr)
 
 	PluginLoader* loader (PluginLoader::getInstance());
 
-	plugin = loader->loadPlugin (key, sr, PluginLoader::ADAPT_ALL);
+	plugin = loader->loadPlugin (key, sr, PluginLoader::ADAPT_ALL_SAFE);
 
 	if (!plugin) {
 		error << string_compose (_("VAMP Plugin \"%1\" could not be loaded"), key) << endmsg;
 		return -1;
-	} 
+	}
 
 	/* we asked for the buffering adapter, so set the blocksize to
 	   something that makes for efficient disk i/o
 	*/
 
-	bufsize = 65536;
-	stepsize = bufsize;
+	bufsize = 1024;
+	stepsize = 512;
 
 	if (plugin->getMinChannelCount() > 1) {
 		delete plugin;
@@ -77,44 +98,30 @@ AudioAnalyser::reset ()
 		plugin->reset ();
 	}
 }
-	
+
 int
 AudioAnalyser::analyse (const string& path, Readable* src, uint32_t channel)
 {
-	ofstream ofile;
+	stringstream outss;
 	Plugin::FeatureSet features;
 	int ret = -1;
 	bool done = false;
 	Sample* data = 0;
-	nframes64_t len = src->readable_length();
-	nframes64_t pos = 0;
+	framecnt_t len = src->readable_length();
+	framepos_t pos = 0;
 	float* bufs[1] = { 0 };
-	string tmp_path;
-
-	if (!path.empty()) {
-
-		/* store data in tmp file, not the real one */
-		
-		tmp_path = path;
-		tmp_path += ".tmp";
-
-		ofile.open (tmp_path.c_str());
-		if (!ofile) {
-			goto out;
-		}
-	}
 
 	data = new Sample[bufsize];
 	bufs[0] = data;
 
 	while (!done) {
 
-		nframes64_t to_read;
-		
+		framecnt_t to_read;
+
 		/* read from source */
 
-		to_read = min ((len - pos), bufsize);
-		
+		to_read = min ((len - pos), (framecnt_t) bufsize);
+
 		if (src->read (data, pos, to_read, channel) != to_read) {
 			goto out;
 		}
@@ -124,10 +131,10 @@ AudioAnalyser::analyse (const string& path, Readable* src, uint32_t channel)
 		if (to_read != bufsize) {
 			memset (data + to_read, 0, (bufsize - to_read) * sizeof (Sample));
 		}
-		
+
 		features = plugin->process (bufs, RealTime::fromSeconds ((double) pos / sample_rate));
 
-		if (use_features (features, (path.empty() ? 0 : &ofile))) {
+		if (use_features (features, (path.empty() ? 0 : &outss))) {
 			goto out;
 		}
 
@@ -142,21 +149,15 @@ AudioAnalyser::analyse (const string& path, Readable* src, uint32_t channel)
 
 	features = plugin->getRemainingFeatures ();
 
-	if (use_features (features, (path.empty() ? &ofile : 0))) {
+	if (use_features (features, (path.empty() ? 0 : &outss))) {
 		goto out;
 	}
 
 	ret = 0;
 
   out:
-	/* works even if it has not been opened */
-	ofile.close ();
-
-	if (ret) {
-		g_remove (tmp_path.c_str());
-	} else if (!path.empty()) {
-		/* move the data file to the requested path */
-		g_rename (tmp_path.c_str(), path.c_str());
+	if (!ret) {
+		g_file_set_contents (path.c_str(), outss.str().c_str(), -1, NULL);
 	}
 
 	delete [] data;