1 files changed, 77 insertions, 0 deletions
diff --git a/libswresample/swresample_internal.h b/libswresample/swresample_internal.h
new file mode 100644
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+++ b/libswresample/swresample_internal.h
@@ -0,0 +1,77 @@
+/*
+ * 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_INTERNAL_H
+#define SWR_INTERNAL_H
+
+#include "swresample.h"
+
+typedef struct AudioData{
+    uint8_t *ch[SWR_CH_MAX];
+    uint8_t *data;
+    int ch_count;
+    int bps;
+    int count;
+    int planar;
+} AudioData;
+
+typedef struct SwrContext {          //FIXME find unused fields
+    AVClass *av_class;
+    int log_level_offset;
+    void *log_ctx;
+    enum AVSampleFormat  in_sample_fmt;
+    enum AVSampleFormat int_sample_fmt; ///<AV_SAMPLE_FMT_FLT OR AV_SAMPLE_FMT_S16
+    enum AVSampleFormat out_sample_fmt;
+    int64_t  in_ch_layout;
+    int64_t out_ch_layout;
+    int      in_sample_rate;
+    int     out_sample_rate;
+    int flags;
+    float slev, clev;
+
+    //below are private
+    int int_bps;
+    int resample_first;
+    int rematrix;                   ///< flag to indicate if rematrixing is used
+
+    AudioData in, postin, midbuf, preout, out, in_buffer;
+    int in_buffer_index;
+    int in_buffer_count;
+    int resample_in_constraint;
+
+    struct AVAudioConvert *in_convert;
+    struct AVAudioConvert *out_convert;
+    struct AVResampleContext *resample;
+
+    float matrix[SWR_CH_MAX][SWR_CH_MAX];
+    uint8_t matrix_ch[SWR_CH_MAX][SWR_CH_MAX+1];
+
+    //TODO callbacks for asm optims
+}SwrContext;
+
+struct AVResampleContext *swr_resample_init(struct AVResampleContext *, int out_rate, int in_rate, int filter_size, int phase_shift, int linear, double cutoff);
+void swr_resample_free(struct AVResampleContext **c);
+int swr_multiple_resample(struct AVResampleContext *c, AudioData *dst, int dst_size, AudioData *src, int src_size, int *consumed);
+void swr_resample_compensate(struct AVResampleContext *c, int sample_delta, int compensation_distance);
+int swr_resample(struct AVResampleContext *c, short *dst, short *src, int *consumed, int src_size, int dst_size, int update_ctx);
+
+int swr_rematrix_init(SwrContext *s);
+int swr_rematrix(SwrContext *s, AudioData *out, AudioData *in, int len, int mustcopy);
+#endif