1 files changed, 79 insertions, 0 deletions
diff --git a/libswresample/swresample.h b/libswresample/swresample.h
new file mode 100644
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+++ b/libswresample/swresample.h
@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2011 Michael Niedermayer (michaelni@gmx.at)
+ *
+ * This file is part of libswresample
+ *
+ * libswresample 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.
+ *
+ * libswresample 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 libswresample; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef SWR_H
+#define SWR_H
+
+#include <inttypes.h>
+#include "libavutil/samplefmt.h"
+
+#define LIBSWRESAMPLE_VERSION_MAJOR 0
+#define LIBSWRESAMPLE_VERSION_MINOR 0
+#define LIBSWRESAMPLE_VERSION_MICRO 0
+
+#define SWR_CH_MAX 16
+
+#define SWR_FLAG_RESAMPLE 1///< Force resampling even if equal sample rate
+//TODO use int resample ?
+//long term TODO can we enable this dynamically?
+
+
+struct SwrContext;
+
+/**
+ * Allocate SwrContext.
+ * @see swr_init(),swr_free()
+ * @return NULL on error
+ */
+struct SwrContext *swr_alloc(void);
+
+/**
+ * Initialize context after user parameters have been set.
+ * @return negativo n error
+ */
+int swr_init(struct SwrContext *s);
+
+/**
+ * Allocate SwrContext.
+ * @see swr_init(),swr_free()
+ * @return NULL on error
+ */
+struct SwrContext *swr_alloc2(struct SwrContext *s, int64_t out_ch_layout, enum AVSampleFormat out_sample_fmt, int out_sample_rate,
+                              int64_t  in_ch_layout, enum AVSampleFormat  in_sample_fmt, int  in_sample_rate,
+                              int log_offset, void *log_ctx);
+
+/**
+ * Free the given SwrContext.
+ * And set the pointer to NULL
+ */
+void swr_free(struct SwrContext **s);
+
+/**
+ * Convert audio.
+ * @param  in_count Number of input samples available in one channel.
+ * @param out_count Amount of space available for output in samples per channel.
+ * @return number of samples output per channel
+ */
+int swr_convert(struct SwrContext *s, uint8_t *out[SWR_CH_MAX], int out_count,
+                                const uint8_t *in [SWR_CH_MAX], int in_count);
+
+void swr_compensate(struct SwrContext *s, int sample_delta, int compensation_distance);
+
+#endif