Add sample format support functions: avcodec_get_sample_fmt_name(), avcodec_get_sample_fmt(), avcodec_sample_fmt_string()

Originally committed as revision 14484 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 57 insertions, 0 deletions

diff --git a/libavcodec/audioconvert.h b/libavcodec/audioconvert.h
new file mode 100644
index 0000000000..210cc87716
--- /dev/null
+++ b/libavcodec/audioconvert.h
@@ -0,0 +1,57 @@
+/*
+ * audio conversion
+ * Copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ * Copyright (c) 2008 Peter Ross
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef FFMPEG_AUDIOCONVERT_H
+#define FFMPEG_AUDIOCONVERT_H
+
+/**
+ * @file audioconvert.h
+ * Audio format conversion routines
+ */
+
+
+#include "avcodec.h"
+
+
+/**
+ * Generate string corresponding to the sample format with
+ * number sample_fmt, or a header if sample_fmt is negative.
+ *
+ * @param[in] buf the buffer where to write the string
+ * @param[in] buf_size the size of buf
+ * @param[in] sample_fmt the number of the sample format to print the corresponding info string, or
+ * a negative value to print the corresponding header.
+ * Meaningful values for obtaining a sample format info vary from 0 to SAMPLE_FMT_NB -1.
+ */
+void avcodec_sample_fmt_string(char *buf, int buf_size, int sample_fmt);
+
+/**
+ * @return NULL on error
+ */
+const char *avcodec_get_sample_fmt_name(int sample_fmt);
+
+/**
+ * @return SAMPLE_FMT_NONE on error
+ */
+enum SampleFormat avcodec_get_sample_fmt(const char* name);
+
+#endif /* FFMPEG_AUDIOCONVERT_H */