1 files changed, 60 insertions, 0 deletions
diff --git a/audio/fmt-conversion.c b/audio/fmt-conversion.c
new file mode 100644
index 0000000..d72a50d
--- /dev/null
+++ b/audio/fmt-conversion.c
@@ -0,0 +1,60 @@
+/*
+ * This file is part of mpv.
+ *
+ * mpv 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.
+ *
+ * mpv 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 mpv.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <libavutil/avutil.h>
+#include <libavutil/samplefmt.h>
+#include "format.h"
+#include "fmt-conversion.h"
+
+static const struct {
+    enum AVSampleFormat sample_fmt;
+    int fmt;
+} audio_conversion_map[] = {
+    {AV_SAMPLE_FMT_U8,    AF_FORMAT_U8},
+    {AV_SAMPLE_FMT_S16,   AF_FORMAT_S16},
+    {AV_SAMPLE_FMT_S32,   AF_FORMAT_S32},
+    {AV_SAMPLE_FMT_S64,   AF_FORMAT_S64},
+    {AV_SAMPLE_FMT_FLT,   AF_FORMAT_FLOAT},
+    {AV_SAMPLE_FMT_DBL,   AF_FORMAT_DOUBLE},
+
+    {AV_SAMPLE_FMT_U8P,   AF_FORMAT_U8P},
+    {AV_SAMPLE_FMT_S16P,  AF_FORMAT_S16P},
+    {AV_SAMPLE_FMT_S32P,  AF_FORMAT_S32P},
+    {AV_SAMPLE_FMT_S64P,  AF_FORMAT_S64P},
+    {AV_SAMPLE_FMT_FLTP,  AF_FORMAT_FLOATP},
+    {AV_SAMPLE_FMT_DBLP,  AF_FORMAT_DOUBLEP},
+
+    {AV_SAMPLE_FMT_NONE,  0},
+};
+
+enum AVSampleFormat af_to_avformat(int fmt)
+{
+    for (int i = 0; audio_conversion_map[i].fmt; i++) {
+        if (audio_conversion_map[i].fmt == fmt)
+            return audio_conversion_map[i].sample_fmt;
+    }
+    return AV_SAMPLE_FMT_NONE;
+}
+
+int af_from_avformat(enum AVSampleFormat sample_fmt)
+{
+    for (int i = 0; audio_conversion_map[i].fmt; i++) {
+        if (audio_conversion_map[i].sample_fmt == sample_fmt)
+            return audio_conversion_map[i].fmt;
+    }
+    return 0;
+}