lavc: add a HEVC decoder.

Initially written by Guillaume Martres <smarter@ubuntu.com> as a GSoC
project. Further contributions by the OpenHEVC project and other
developers, namely:

Mickaël Raulet <mraulet@insa-rennes.fr>
Seppo Tomperi <seppo.tomperi@vtt.fi>
Gildas Cocherel <gildas.cocherel@laposte.net>
Khaled Jerbi <khaled_jerbi@yahoo.fr>
Wassim Hamidouche <wassim.hamidouche@insa-rennes.fr>
Vittorio Giovara <vittorio.giovara@gmail.com>
Jan Ekström <jeebjp@gmail.com>
Anton Khirnov <anton@khirnov.net>
Martin Storsjö <martin@martin.st>
Luca Barbato <lu_zero@gentoo.org>
Yusuke Nakamura <muken.the.vfrmaniac@gmail.com>

Signed-off-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

1 files changed, 77 insertions, 0 deletions

diff --git a/libavcodec/hevcdsp.h b/libavcodec/hevcdsp.h
new file mode 100644
index 0000000000..c6511b01ac
--- /dev/null
+++ b/libavcodec/hevcdsp.h
@@ -0,0 +1,77 @@
+/*
+ * HEVC video Decoder
+ *
+ * Copyright (C) 2012 - 2013 Guillaume Martres
+ *
+ * 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_HEVCDSP_H
+#define AVCODEC_HEVCDSP_H
+
+#include "get_bits.h"
+
+struct SAOParams;
+
+typedef struct HEVCDSPContext {
+    void (*put_pcm)(uint8_t *_dst, ptrdiff_t _stride, int size,
+                    GetBitContext *gb, int pcm_bit_depth);
+
+    void (*transquant_bypass[4])(uint8_t *_dst, int16_t *coeffs, ptrdiff_t _stride);
+
+    void (*transform_skip)(uint8_t *dst, int16_t *coeffs, ptrdiff_t stride);
+
+    void (*transform_4x4_luma_add)(uint8_t *dst, int16_t *coeffs, ptrdiff_t stride);
+
+    void (*transform_add[4])(uint8_t *dst, int16_t *coeffs, ptrdiff_t _stride);
+
+    void (*sao_band_filter[4])( uint8_t *_dst, uint8_t *_src, ptrdiff_t _stride, struct SAOParams *sao, int *borders, int width, int height, int c_idx);
+
+    void (*sao_edge_filter[4])(uint8_t *_dst, uint8_t *_src, ptrdiff_t _stride,  struct SAOParams *sao, int *borders, int _width, int _height, int c_idx, uint8_t vert_edge, uint8_t horiz_edge, uint8_t diag_edge);
+
+
+    void (*put_hevc_qpel[4][4])(int16_t *dst, ptrdiff_t dststride, uint8_t *src, ptrdiff_t srcstride,
+                                int width, int height, int16_t* mcbuffer);
+
+    void (*put_hevc_epel[2][2])(int16_t *dst, ptrdiff_t dststride, uint8_t *src, ptrdiff_t srcstride,
+                             int width, int height, int mx, int my, int16_t* mcbuffer);
+
+    void (*put_unweighted_pred)(uint8_t *dst, ptrdiff_t dststride, int16_t *src, ptrdiff_t srcstride,
+                                int width, int height);
+
+    void (*put_weighted_pred_avg)(uint8_t *dst, ptrdiff_t dststride, int16_t *src1, int16_t *src2,
+                                  ptrdiff_t srcstride, int width, int height);
+    void (*weighted_pred)(uint8_t denom, int16_t wlxFlag, int16_t olxFlag, uint8_t *dst, ptrdiff_t dststride, int16_t *src,
+                                  ptrdiff_t srcstride, int width, int height);
+    void (*weighted_pred_avg)(uint8_t denom, int16_t wl0Flag, int16_t wl1Flag, int16_t ol0Flag, int16_t ol1Flag,
+                                   uint8_t *dst, ptrdiff_t dststride, int16_t *src1, int16_t *src2,
+                                   ptrdiff_t srcstride, int width, int height);
+    void (*hevc_h_loop_filter_luma)(uint8_t *_pix, ptrdiff_t _stride, int *_beta, int *_tc, uint8_t *_no_p, uint8_t *_no_q);
+    void (*hevc_v_loop_filter_luma)(uint8_t *_pix, ptrdiff_t _stride, int *_beta, int *_tc, uint8_t *_no_p, uint8_t *_no_q);
+    void (*hevc_h_loop_filter_chroma)(uint8_t *_pix, ptrdiff_t _stride, int *_tc, uint8_t *_no_p, uint8_t *_no_q);
+    void (*hevc_v_loop_filter_chroma)(uint8_t *_pix, ptrdiff_t _stride, int *_tc, uint8_t *_no_p, uint8_t *_no_q);
+    void (*hevc_h_loop_filter_luma_c)(uint8_t *_pix, ptrdiff_t _stride, int *_beta, int *_tc, uint8_t *_no_p, uint8_t *_no_q);
+    void (*hevc_v_loop_filter_luma_c)(uint8_t *_pix, ptrdiff_t _stride, int *_beta, int *_tc, uint8_t *_no_p, uint8_t *_no_q);
+    void (*hevc_h_loop_filter_chroma_c)(uint8_t *_pix, ptrdiff_t _stride, int *_tc, uint8_t *_no_p, uint8_t *_no_q);
+    void (*hevc_v_loop_filter_chroma_c)(uint8_t *_pix, ptrdiff_t _stride, int *_tc, uint8_t *_no_p, uint8_t *_no_q);
+} HEVCDSPContext;
+
+void ff_hevc_dsp_init(HEVCDSPContext *hpc, int bit_depth);
+
+extern const int8_t ff_hevc_epel_filters[7][16];
+
+#endif /* AVCODEC_HEVCDSP_H */