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authorDiego Biurrun <diego@biurrun.de>2013-12-23 18:42:11 +0100
committerDiego Biurrun <diego@biurrun.de>2014-05-27 08:54:53 -0700
commit512f3ffe9b4bb86767c2b1176554407c75fe1a5c (patch)
tree47f7c9707479b72e570c969576e2dbd94375114f /libavcodec/huffyuvencdsp.h
parent0d439fbede03854eac8a978cccf21a3425a3c82d (diff)
downloadffmpeg-512f3ffe9b4bb86767c2b1176554407c75fe1a5c.tar.gz
dsputil: Split off HuffYUV encoding bits into their own context
Also shorten HuffYUV context member names to avoid clutter.
Diffstat (limited to 'libavcodec/huffyuvencdsp.h')
-rw-r--r--libavcodec/huffyuvencdsp.h41
1 files changed, 41 insertions, 0 deletions
diff --git a/libavcodec/huffyuvencdsp.h b/libavcodec/huffyuvencdsp.h
new file mode 100644
index 0000000000..603c36f7af
--- /dev/null
+++ b/libavcodec/huffyuvencdsp.h
@@ -0,0 +1,41 @@
+/*
+ * This file is part of Libav.
+ *
+ * Libav 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.
+ *
+ * Libav 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 Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_HUFFYUVENCDSP_H
+#define AVCODEC_HUFFYUVENCDSP_H
+
+#include <stdint.h>
+
+typedef struct HuffYUVEncDSPContext {
+ void (*diff_bytes)(uint8_t *dst /* align 16 */,
+ uint8_t *src1 /* align 16 */,
+ uint8_t *src2 /* align 1 */,
+ int w);
+ /**
+ * Subtract HuffYUV's variant of median prediction.
+ * Note, this might read from src1[-1], src2[-1].
+ */
+ void (*sub_hfyu_median_pred)(uint8_t *dst, const uint8_t *src1,
+ const uint8_t *src2, int w,
+ int *left, int *left_top);
+} HuffYUVEncDSPContext;
+
+void ff_huffyuvencdsp_init(HuffYUVEncDSPContext *c);
+void ff_huffyuvencdsp_init_x86(HuffYUVEncDSPContext *c);
+
+#endif /* AVCODEC_HUFFYUVENCDSP_H */