[FFmpeg-cvslog] h264: aarch64: intra prediction optimisations
Janne Grunau
git at videolan.org
Tue Jul 21 01:47:50 CEST 2015
ffmpeg | branch: master | Janne Grunau <janne-libav at jannau.net> | Sun Jul 12 18:30:09 2015 +0200| [f56d8d8dd72b1ab52aa814c5a0fccabf8040ef68] | committer: Janne Grunau
h264: aarch64: intra prediction optimisations
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=f56d8d8dd72b1ab52aa814c5a0fccabf8040ef68
---
libavcodec/aarch64/Makefile | 2 +
libavcodec/aarch64/h264pred_init.c | 93 ++++++++++
libavcodec/aarch64/h264pred_neon.S | 361 ++++++++++++++++++++++++++++++++++++
libavcodec/h264pred.c | 8 +-
libavcodec/h264pred.h | 3 +
5 files changed, 465 insertions(+), 2 deletions(-)
diff --git a/libavcodec/aarch64/Makefile b/libavcodec/aarch64/Makefile
index 2afff29..d001b34 100644
--- a/libavcodec/aarch64/Makefile
+++ b/libavcodec/aarch64/Makefile
@@ -1,6 +1,7 @@
OBJS-$(CONFIG_FFT) += aarch64/fft_init_aarch64.o
OBJS-$(CONFIG_H264CHROMA) += aarch64/h264chroma_init_aarch64.o
OBJS-$(CONFIG_H264DSP) += aarch64/h264dsp_init_aarch64.o
+OBJS-$(CONFIG_H264PRED) += aarch64/h264pred_init.o
OBJS-$(CONFIG_H264QPEL) += aarch64/h264qpel_init_aarch64.o
OBJS-$(CONFIG_HPELDSP) += aarch64/hpeldsp_init_aarch64.o
OBJS-$(CONFIG_IMDCT15) += aarch64/imdct15_init.o
@@ -18,6 +19,7 @@ NEON-OBJS-$(CONFIG_FFT) += aarch64/fft_neon.o
NEON-OBJS-$(CONFIG_H264CHROMA) += aarch64/h264cmc_neon.o
NEON-OBJS-$(CONFIG_H264DSP) += aarch64/h264dsp_neon.o \
aarch64/h264idct_neon.o
+NEON-OBJS-$(CONFIG_H264PRED) += aarch64/h264pred_neon.o
NEON-OBJS-$(CONFIG_H264QPEL) += aarch64/h264qpel_neon.o \
aarch64/hpeldsp_neon.o
NEON-OBJS-$(CONFIG_HPELDSP) += aarch64/hpeldsp_neon.o
diff --git a/libavcodec/aarch64/h264pred_init.c b/libavcodec/aarch64/h264pred_init.c
new file mode 100644
index 0000000..8f912cb
--- /dev/null
+++ b/libavcodec/aarch64/h264pred_init.c
@@ -0,0 +1,93 @@
+/*
+ * Copyright (c) 2009 Mans Rullgard <mans at mansr.com>
+ *
+ * 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
+ */
+
+#include <stdint.h>
+
+#include "libavutil/attributes.h"
+#include "libavutil/aarch64/cpu.h"
+#include "libavcodec/avcodec.h"
+#include "libavcodec/h264pred.h"
+
+void ff_pred16x16_vert_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred16x16_hor_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred16x16_plane_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred16x16_dc_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred16x16_128_dc_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred16x16_left_dc_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred16x16_top_dc_neon(uint8_t *src, ptrdiff_t stride);
+
+void ff_pred8x8_vert_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred8x8_hor_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred8x8_plane_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred8x8_dc_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred8x8_128_dc_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred8x8_left_dc_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred8x8_top_dc_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred8x8_l0t_dc_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred8x8_0lt_dc_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred8x8_l00_dc_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred8x8_0l0_dc_neon(uint8_t *src, ptrdiff_t stride);
+
+static av_cold void h264_pred_init_neon(H264PredContext *h, int codec_id,
+ const int bit_depth,
+ const int chroma_format_idc)
+{
+ const int high_depth = bit_depth > 8;
+
+ if (high_depth)
+ return;
+
+ if (chroma_format_idc <= 1) {
+ h->pred8x8[VERT_PRED8x8 ] = ff_pred8x8_vert_neon;
+ h->pred8x8[HOR_PRED8x8 ] = ff_pred8x8_hor_neon;
+ if (codec_id != AV_CODEC_ID_VP7 && codec_id != AV_CODEC_ID_VP8)
+ h->pred8x8[PLANE_PRED8x8] = ff_pred8x8_plane_neon;
+ h->pred8x8[DC_128_PRED8x8 ] = ff_pred8x8_128_dc_neon;
+ if (codec_id != AV_CODEC_ID_RV40 && codec_id != AV_CODEC_ID_VP7 &&
+ codec_id != AV_CODEC_ID_VP8) {
+ h->pred8x8[DC_PRED8x8 ] = ff_pred8x8_dc_neon;
+ h->pred8x8[LEFT_DC_PRED8x8] = ff_pred8x8_left_dc_neon;
+ h->pred8x8[TOP_DC_PRED8x8 ] = ff_pred8x8_top_dc_neon;
+ h->pred8x8[ALZHEIMER_DC_L0T_PRED8x8] = ff_pred8x8_l0t_dc_neon;
+ h->pred8x8[ALZHEIMER_DC_0LT_PRED8x8] = ff_pred8x8_0lt_dc_neon;
+ h->pred8x8[ALZHEIMER_DC_L00_PRED8x8] = ff_pred8x8_l00_dc_neon;
+ h->pred8x8[ALZHEIMER_DC_0L0_PRED8x8] = ff_pred8x8_0l0_dc_neon;
+ }
+ }
+
+ h->pred16x16[DC_PRED8x8 ] = ff_pred16x16_dc_neon;
+ h->pred16x16[VERT_PRED8x8 ] = ff_pred16x16_vert_neon;
+ h->pred16x16[HOR_PRED8x8 ] = ff_pred16x16_hor_neon;
+ h->pred16x16[LEFT_DC_PRED8x8] = ff_pred16x16_left_dc_neon;
+ h->pred16x16[TOP_DC_PRED8x8 ] = ff_pred16x16_top_dc_neon;
+ h->pred16x16[DC_128_PRED8x8 ] = ff_pred16x16_128_dc_neon;
+ if (codec_id != AV_CODEC_ID_SVQ3 && codec_id != AV_CODEC_ID_RV40 &&
+ codec_id != AV_CODEC_ID_VP7 && codec_id != AV_CODEC_ID_VP8)
+ h->pred16x16[PLANE_PRED8x8 ] = ff_pred16x16_plane_neon;
+}
+
+av_cold void ff_h264_pred_init_aarch64(H264PredContext *h, int codec_id,
+ int bit_depth, const int chroma_format_idc)
+{
+ int cpu_flags = av_get_cpu_flags();
+
+ if (have_neon(cpu_flags))
+ h264_pred_init_neon(h, codec_id, bit_depth, chroma_format_idc);
+}
diff --git a/libavcodec/aarch64/h264pred_neon.S b/libavcodec/aarch64/h264pred_neon.S
new file mode 100644
index 0000000..a38a27f
--- /dev/null
+++ b/libavcodec/aarch64/h264pred_neon.S
@@ -0,0 +1,361 @@
+/*
+ * Copyright (c) 2009 Mans Rullgard <mans at mansr.com>
+ *
+ * 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
+ */
+
+#include "libavutil/aarch64/asm.S"
+
+.macro ldcol.8 rd, rs, rt, n=8, hi=0
+.if \n >= 8 || \hi == 0
+ ld1 {\rd\().b}[0], [\rs], \rt
+ ld1 {\rd\().b}[1], [\rs], \rt
+ ld1 {\rd\().b}[2], [\rs], \rt
+ ld1 {\rd\().b}[3], [\rs], \rt
+.endif
+.if \n >= 8 || \hi == 1
+ ld1 {\rd\().b}[4], [\rs], \rt
+ ld1 {\rd\().b}[5], [\rs], \rt
+ ld1 {\rd\().b}[6], [\rs], \rt
+ ld1 {\rd\().b}[7], [\rs], \rt
+.endif
+.if \n == 16
+ ld1 {\rd\().b}[8], [\rs], \rt
+ ld1 {\rd\().b}[9], [\rs], \rt
+ ld1 {\rd\().b}[10], [\rs], \rt
+ ld1 {\rd\().b}[11], [\rs], \rt
+ ld1 {\rd\().b}[12], [\rs], \rt
+ ld1 {\rd\().b}[13], [\rs], \rt
+ ld1 {\rd\().b}[14], [\rs], \rt
+ ld1 {\rd\().b}[15], [\rs], \rt
+.endif
+.endm
+
+function ff_pred16x16_128_dc_neon, export=1
+ movi v0.16b, #128
+ b .L_pred16x16_dc_end
+endfunc
+
+function ff_pred16x16_top_dc_neon, export=1
+ sub x2, x0, x1
+ ld1 {v0.16b}, [x2]
+ uaddlv h0, v0.16b
+ rshrn v0.8b, v0.8h, #4
+ dup v0.16b, v0.b[0]
+ b .L_pred16x16_dc_end
+endfunc
+
+function ff_pred16x16_left_dc_neon, export=1
+ sub x2, x0, #1
+ ldcol.8 v0, x2, x1, 16
+ uaddlv h0, v0.16b
+ rshrn v0.8b, v0.8h, #4
+ dup v0.16b, v0.b[0]
+ b .L_pred16x16_dc_end
+endfunc
+
+function ff_pred16x16_dc_neon, export=1
+ sub x2, x0, x1
+ sub x3, x0, #1
+ ld1 {v0.16b}, [x2]
+ ldcol.8 v1, x3, x1, 16
+ uaddlv h0, v0.16b
+ uaddlv h1, v1.16b
+ add v0.4h, v0.4h, v1.4h
+ rshrn v0.8b, v0.8h, #5
+ dup v0.16b, v0.b[0]
+.L_pred16x16_dc_end:
+ mov w3, #8
+6: st1 {v0.16b}, [x0], x1
+ st1 {v0.16b}, [x0], x1
+ subs w3, w3, #1
+ b.ne 6b
+ ret
+endfunc
+
+function ff_pred16x16_hor_neon, export=1
+ sub x2, x0, #1
+ mov w3, #16
+1: ld1r {v0.16b}, [x2], x1
+ st1 {v0.16b}, [x0], x1
+ subs w3, w3, #1
+ b.ne 1b
+ ret
+endfunc
+
+function ff_pred16x16_vert_neon, export=1
+ sub x2, x0, x1
+ add x1, x1, x1
+ ld1 {v0.16b}, [x2], x1
+ mov w3, #8
+1: st1 {v0.16b}, [x0], x1
+ st1 {v0.16b}, [x2], x1
+ subs w3, w3, #1
+ b.ne 1b
+ ret
+endfunc
+
+function ff_pred16x16_plane_neon, export=1
+ sub x3, x0, x1
+ movrel x4, p16weight
+ add x2, x3, #8
+ sub x3, x3, #1
+ ld1 {v0.8b}, [x3]
+ ld1 {v2.8b}, [x2], x1
+ ldcol.8 v1, x3, x1
+ add x3, x3, x1
+ ldcol.8 v3, x3, x1
+ rev64 v0.8b, v0.8b
+ rev64 v1.8b, v1.8b
+ uaddl v7.8h, v2.8b, v3.8b
+ usubl v2.8h, v2.8b, v0.8b
+ usubl v3.8h, v3.8b, v1.8b
+ ld1 {v0.8h}, [x4]
+ mul v2.8h, v2.8h, v0.8h
+ mul v3.8h, v3.8h, v0.8h
+ addp v2.8h, v2.8h, v3.8h
+ addp v2.8h, v2.8h, v2.8h
+ addp v2.4h, v2.4h, v2.4h
+ sshll v3.4s, v2.4h, #2
+ saddw v2.4s, v3.4s, v2.4h
+ rshrn v4.4h, v2.4s, #6
+ trn2 v5.4h, v4.4h, v4.4h
+ add v2.4h, v4.4h, v5.4h
+ shl v3.4h, v2.4h, #3
+ ext v7.16b, v7.16b, v7.16b, #14
+ sub v3.4h, v3.4h, v2.4h // 7 * (b + c)
+ add v7.4h, v7.4h, v0.4h
+ shl v2.4h, v7.4h, #4
+ sub v2.4h, v2.4h, v3.4h
+ shl v3.4h, v4.4h, #4
+ ext v0.16b, v0.16b, v0.16b, #14
+ sub v6.4h, v5.4h, v3.4h
+ mov v0.h[0], wzr
+ mul v0.8h, v0.8h, v4.h[0]
+ dup v1.8h, v2.h[0]
+ dup v2.8h, v4.h[0]
+ dup v3.8h, v6.h[0]
+ shl v2.8h, v2.8h, #3
+ add v1.8h, v1.8h, v0.8h
+ add v3.8h, v3.8h, v2.8h
+ mov w3, #16
+1:
+ sqshrun v0.8b, v1.8h, #5
+ add v1.8h, v1.8h, v2.8h
+ sqshrun2 v0.16b, v1.8h, #5
+ add v1.8h, v1.8h, v3.8h
+ st1 {v0.16b}, [x0], x1
+ subs w3, w3, #1
+ b.ne 1b
+ ret
+endfunc
+
+const p16weight, align=4
+ .short 1,2,3,4,5,6,7,8
+endconst
+const p8weight, align=4
+ .short 1,2,3,4,1,2,3,4
+endconst
+
+function ff_pred8x8_hor_neon, export=1
+ sub x2, x0, #1
+ mov w3, #8
+1: ld1r {v0.8b}, [x2], x1
+ st1 {v0.8b}, [x0], x1
+ subs w3, w3, #1
+ b.ne 1b
+ ret
+endfunc
+
+function ff_pred8x8_vert_neon, export=1
+ sub x2, x0, x1
+ lsl x1, x1, #1
+ ld1 {v0.8b}, [x2], x1
+ mov w3, #4
+1: st1 {v0.8b}, [x0], x1
+ st1 {v0.8b}, [x2], x1
+ subs w3, w3, #1
+ b.ne 1b
+ ret
+endfunc
+
+function ff_pred8x8_plane_neon, export=1
+ sub x3, x0, x1
+ movrel x4, p8weight
+ movrel x5, p16weight
+ add x2, x3, #4
+ sub x3, x3, #1
+ ld1 {v0.s}[0], [x3]
+ ld1 {v2.s}[0], [x2], x1
+ ldcol.8 v0, x3, x1, 4, hi=1
+ add x3, x3, x1
+ ldcol.8 v3, x3, x1, 4
+ uaddl v7.8h, v2.8b, v3.8b
+ rev32 v0.8b, v0.8b
+ trn1 v2.2s, v2.2s, v3.2s
+ usubl v2.8h, v2.8b, v0.8b
+ ld1 {v6.8h}, [x4]
+ mul v2.8h, v2.8h, v6.8h
+ ld1 {v0.8h}, [x5]
+ saddlp v2.4s, v2.8h
+ addp v2.4s, v2.4s, v2.4s
+ shl v3.4s, v2.4s, #4
+ add v2.4s, v3.4s, v2.4s
+ rshrn v5.4h, v2.4s, #5
+ addp v2.4h, v5.4h, v5.4h
+ shl v3.4h, v2.4h, #1
+ add v3.4h, v3.4h, v2.4h
+ rev64 v7.4h, v7.4h
+ add v7.4h, v7.4h, v0.4h
+ shl v2.4h, v7.4h, #4
+ sub v2.4h, v2.4h, v3.4h
+ ext v0.16b, v0.16b, v0.16b, #14
+ mov v0.h[0], wzr
+ mul v0.8h, v0.8h, v5.h[0]
+ dup v1.8h, v2.h[0]
+ dup v2.8h, v5.h[1]
+ add v1.8h, v1.8h, v0.8h
+ mov w3, #8
+1:
+ sqshrun v0.8b, v1.8h, #5
+ add v1.8h, v1.8h, v2.8h
+ st1 {v0.8b}, [x0], x1
+ subs w3, w3, #1
+ b.ne 1b
+ ret
+endfunc
+
+function ff_pred8x8_128_dc_neon, export=1
+ movi v0.8b, #128
+ movi v1.8b, #128
+ b .L_pred8x8_dc_end
+endfunc
+
+function ff_pred8x8_top_dc_neon, export=1
+ sub x2, x0, x1
+ ld1 {v0.8b}, [x2]
+ uaddlp v0.4h, v0.8b
+ addp v0.4h, v0.4h, v0.4h
+ zip1 v0.8h, v0.8h, v0.8h
+ rshrn v2.8b, v0.8h, #2
+ zip1 v0.8b, v2.8b, v2.8b
+ zip1 v1.8b, v2.8b, v2.8b
+ b .L_pred8x8_dc_end
+endfunc
+
+function ff_pred8x8_left_dc_neon, export=1
+ sub x2, x0, #1
+ ldcol.8 v0, x2, x1
+ uaddlp v0.4h, v0.8b
+ addp v0.4h, v0.4h, v0.4h
+ rshrn v2.8b, v0.8h, #2
+ dup v1.8b, v2.b[1]
+ dup v0.8b, v2.b[0]
+ b .L_pred8x8_dc_end
+endfunc
+
+function ff_pred8x8_dc_neon, export=1
+ sub x2, x0, x1
+ sub x3, x0, #1
+ ld1 {v0.8b}, [x2]
+ ldcol.8 v1, x3, x1
+ uaddlp v0.4h, v0.8b
+ uaddlp v1.4h, v1.8b
+ trn1 v2.2s, v0.2s, v1.2s
+ trn2 v3.2s, v0.2s, v1.2s
+ addp v4.4h, v2.4h, v3.4h
+ addp v5.4h, v4.4h, v4.4h
+ rshrn v6.8b, v5.8h, #3
+ rshrn v7.8b, v4.8h, #2
+ dup v0.8b, v6.b[0]
+ dup v2.8b, v7.b[2]
+ dup v1.8b, v7.b[3]
+ dup v3.8b, v6.b[1]
+ zip1 v0.2s, v0.2s, v2.2s
+ zip1 v1.2s, v1.2s, v3.2s
+.L_pred8x8_dc_end:
+ mov w3, #4
+ add x2, x0, x1, lsl #2
+6: st1 {v0.8b}, [x0], x1
+ st1 {v1.8b}, [x2], x1
+ subs w3, w3, #1
+ b.ne 6b
+ ret
+endfunc
+
+function ff_pred8x8_l0t_dc_neon, export=1
+ sub x2, x0, x1
+ sub x3, x0, #1
+ ld1 {v0.8b}, [x2]
+ ldcol.8 v1, x3, x1, 4
+ zip1 v0.4s, v0.4s, v1.4s
+ uaddlp v0.8h, v0.16b
+ addp v0.8h, v0.8h, v0.8h
+ addp v1.4h, v0.4h, v0.4h
+ rshrn v2.8b, v0.8h, #2
+ rshrn v3.8b, v1.8h, #3
+ dup v4.8b, v3.b[0]
+ dup v6.8b, v2.b[2]
+ dup v5.8b, v2.b[0]
+ zip1 v0.2s, v4.2s, v6.2s
+ zip1 v1.2s, v5.2s, v6.2s
+ b .L_pred8x8_dc_end
+endfunc
+
+function ff_pred8x8_l00_dc_neon, export=1
+ sub x2, x0, #1
+ ldcol.8 v0, x2, x1, 4
+ uaddlp v0.4h, v0.8b
+ addp v0.4h, v0.4h, v0.4h
+ rshrn v0.8b, v0.8h, #2
+ movi v1.8b, #128
+ dup v0.8b, v0.b[0]
+ b .L_pred8x8_dc_end
+endfunc
+
+function ff_pred8x8_0lt_dc_neon, export=1
+ add x3, x0, x1, lsl #2
+ sub x2, x0, x1
+ sub x3, x3, #1
+ ld1 {v0.8b}, [x2]
+ ldcol.8 v1, x3, x1, 4, hi=1
+ zip1 v0.4s, v0.4s, v1.4s
+ uaddlp v0.8h, v0.16b
+ addp v0.8h, v0.8h, v0.8h
+ addp v1.4h, v0.4h, v0.4h
+ rshrn v2.8b, v0.8h, #2
+ rshrn v3.8b, v1.8h, #3
+ dup v4.8b, v2.b[0]
+ dup v5.8b, v2.b[3]
+ dup v6.8b, v2.b[2]
+ dup v7.8b, v3.b[1]
+ zip1 v0.2s, v4.2s, v6.2s
+ zip1 v1.2s, v5.2s, v7.2s
+ b .L_pred8x8_dc_end
+endfunc
+
+function ff_pred8x8_0l0_dc_neon, export=1
+ add x2, x0, x1, lsl #2
+ sub x2, x2, #1
+ ldcol.8 v1, x2, x1, 4
+ uaddlp v2.4h, v1.8b
+ addp v2.4h, v2.4h, v2.4h
+ rshrn v1.8b, v2.8h, #2
+ movi v0.8b, #128
+ dup v1.8b, v1.b[0]
+ b .L_pred8x8_dc_end
+endfunc
diff --git a/libavcodec/h264pred.c b/libavcodec/h264pred.c
index b782a25..7c3876a 100644
--- a/libavcodec/h264pred.c
+++ b/libavcodec/h264pred.c
@@ -574,6 +574,10 @@ av_cold void ff_h264_pred_init(H264PredContext *h, int codec_id,
break;
}
- if (ARCH_ARM) ff_h264_pred_init_arm(h, codec_id, bit_depth, chroma_format_idc);
- if (ARCH_X86) ff_h264_pred_init_x86(h, codec_id, bit_depth, chroma_format_idc);
+ if (ARCH_AARCH64)
+ ff_h264_pred_init_aarch64(h, codec_id, bit_depth, chroma_format_idc);
+ if (ARCH_ARM)
+ ff_h264_pred_init_arm(h, codec_id, bit_depth, chroma_format_idc);
+ if (ARCH_X86)
+ ff_h264_pred_init_x86(h, codec_id, bit_depth, chroma_format_idc);
}
diff --git a/libavcodec/h264pred.h b/libavcodec/h264pred.h
index 5c4ef17..673f4cd 100644
--- a/libavcodec/h264pred.h
+++ b/libavcodec/h264pred.h
@@ -111,6 +111,9 @@ typedef struct H264PredContext {
void ff_h264_pred_init(H264PredContext *h, int codec_id,
const int bit_depth, const int chroma_format_idc);
+void ff_h264_pred_init_aarch64(H264PredContext *h, int codec_id,
+ const int bit_depth,
+ const int chroma_format_idc);
void ff_h264_pred_init_arm(H264PredContext *h, int codec_id,
const int bit_depth, const int chroma_format_idc);
void ff_h264_pred_init_x86(H264PredContext *h, int codec_id,
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