1 files changed, 49 insertions, 0 deletions
diff --git a/libavcodec/lossless_videodsp.h b/libavcodec/lossless_videodsp.h
new file mode 100644
index 0000000000..8077898d1a
--- /dev/null
+++ b/libavcodec/lossless_videodsp.h
@@ -0,0 +1,49 @@
+/*
+ * Lossless video DSP utils
+ *
+ * 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_LOSSLESS_VIDEODSP_H
+#define AVCODEC_LOSSLESS_VIDEODSP_H
+
+#include <stdint.h>
+#include <stddef.h>
+
+#include "avcodec.h"
+#include "libavutil/cpu.h"
+
+typedef struct LLVidDSPContext {
+    void (*add_bytes)(uint8_t *dst /* align 32 */, uint8_t *src /* align 32 */,
+                      ptrdiff_t w);
+    void (*add_median_pred)(uint8_t *dst, const uint8_t *top,
+                            const uint8_t *diff, ptrdiff_t w,
+                            int *left, int *left_top);
+    int (*add_left_pred)(uint8_t *dst, const uint8_t *src,
+                         ptrdiff_t w, int left);
+
+    int  (*add_left_pred_int16)(uint16_t *dst, const uint16_t *src,
+                                unsigned mask, ptrdiff_t w, unsigned left);
+    void (*add_gradient_pred)(uint8_t *src /* align 32 */, const ptrdiff_t stride, const ptrdiff_t width);
+} LLVidDSPContext;
+
+void ff_llviddsp_init(LLVidDSPContext *llviddsp);
+void ff_llviddsp_init_x86(LLVidDSPContext *llviddsp);
+void ff_llviddsp_init_ppc(LLVidDSPContext *llviddsp);
+
+#endif //AVCODEC_LOSSLESS_VIDEODSP_H