input/ffmpeg: use av_strerror()

Generate more detailed error messages.

2 files changed, 74 insertions, 0 deletions

diff --git a/src/lib/ffmpeg/Error.cxx b/src/lib/ffmpeg/Error.cxx
new file mode 100644
index 000000000..bcc12fb1d
--- /dev/null
+++ b/src/lib/ffmpeg/Error.cxx
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2003-2014 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.
+ */
+
+#include "config.h"
+#include "Error.hxx"
+#include "Domain.hxx"
+#include "util/Error.hxx"
+
+extern "C" {
+#include <libavutil/error.h>
+}
+
+void
+SetFfmpegError(Error &error, int errnum)
+{
+	char msg[256];
+	av_strerror(errnum, msg, sizeof(msg));
+	error.Set(ffmpeg_domain, errnum, msg);
+}
+
+void
+SetFfmpegError(Error &error, int errnum, const char *prefix)
+{
+	char msg[256];
+	av_strerror(errnum, msg, sizeof(msg));
+	error.Format(ffmpeg_domain, errnum, "%s: %s", prefix, msg);
+}
diff --git a/src/lib/ffmpeg/Error.hxx b/src/lib/ffmpeg/Error.hxx
new file mode 100644
index 000000000..943dca6ce
--- /dev/null
+++ b/src/lib/ffmpeg/Error.hxx
@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2003-2014 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_FFMPEG_ERROR_HXX
+#define MPD_FFMPEG_ERROR_HXX
+
+class Error;
+
+void
+SetFfmpegError(Error &error, int errnum);
+
+void
+SetFfmpegError(Error &error, int errnum, const char *prefix);
+
+#endif