1 files changed, 44 insertions, 0 deletions
diff --git a/media/ffvpx/libavcodec/flacdsp.h b/media/ffvpx/libavcodec/flacdsp.h
new file mode 100644
index 0000000000..15149c026e
--- /dev/null
+++ b/media/ffvpx/libavcodec/flacdsp.h
@@ -0,0 +1,44 @@
+/*
+ * 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 AVCODEC_FLACDSP_H
+#define AVCODEC_FLACDSP_H
+
+#include <stdint.h>
+
+#include "libavutil/samplefmt.h"
+
+typedef struct FLACDSPContext {
+    void (*decorrelate[4])(uint8_t **out, int32_t **in, int channels,
+                           int len, int shift);
+    void (*lpc16)(int32_t *samples, const int coeffs[32], int order,
+                  int qlevel, int len);
+    void (*lpc32)(int32_t *samples, const int coeffs[32], int order,
+                  int qlevel, int len);
+    void (*lpc16_encode)(int32_t *res, const int32_t *smp, int len, int order,
+                         const int32_t coefs[32], int shift);
+    void (*lpc32_encode)(int32_t *res, const int32_t *smp, int len, int order,
+                         const int32_t coefs[32], int shift);
+} FLACDSPContext;
+
+void ff_flacdsp_init(FLACDSPContext *c, enum AVSampleFormat fmt, int channels);
+void ff_flacdsp_init_arm(FLACDSPContext *c, enum AVSampleFormat fmt, int channels);
+void ff_flacdsp_init_riscv(FLACDSPContext *c, enum AVSampleFormat fmt, int channels);
+void ff_flacdsp_init_x86(FLACDSPContext *c, enum AVSampleFormat fmt, int channels);
+
+#endif /* AVCODEC_FLACDSP_H */