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Merge remote-tracking branch 'qatar/master'

* qatar/master:
  x86: dsputil: Move Xvid IDCT put/add functions to a more suitable place
  trasher: Include all the necessary headers
  x86: Remove some leftover declarations for non-existent functions
  ARM: libavresample: NEON optimised generic fltp to s16 conversion
  ARM: libavresample: NEON optimised stereo fltp to s16 conversion
  ARM: libavresample: NEON optimised flat float to s16 conversion

Conflicts:
	libavcodec/x86/dsputil_mmx.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
  • Loading branch information...
commit 509f502902e3760358d5c0c189f3d288652406e5 2 parents 3633078 + 58139e1
@michaelni michaelni authored
View
1  libavcodec/dct-test.c
@@ -57,7 +57,6 @@ void ff_bfin_fdct(DCTELEM *block);
// ALTIVEC
void ff_fdct_altivec(DCTELEM *block);
-//void ff_idct_altivec(DCTELEM *block);?? no routine
// ARM
void ff_j_rev_dct_arm(DCTELEM *data);
View
24 libavcodec/x86/dsputil_mmx.c
@@ -2291,30 +2291,6 @@ static void ff_libmpeg2mmx2_idct_add(uint8_t *dest, int line_size,
}
#endif
-static void ff_idct_xvid_mmx_put(uint8_t *dest, int line_size, DCTELEM *block)
-{
- ff_idct_xvid_mmx(block);
- ff_put_pixels_clamped_mmx(block, dest, line_size);
-}
-
-static void ff_idct_xvid_mmx_add(uint8_t *dest, int line_size, DCTELEM *block)
-{
- ff_idct_xvid_mmx(block);
- ff_add_pixels_clamped_mmx(block, dest, line_size);
-}
-
-static void ff_idct_xvid_mmx2_put(uint8_t *dest, int line_size, DCTELEM *block)
-{
- ff_idct_xvid_mmx2(block);
- ff_put_pixels_clamped_mmx(block, dest, line_size);
-}
-
-static void ff_idct_xvid_mmx2_add(uint8_t *dest, int line_size, DCTELEM *block)
-{
- ff_idct_xvid_mmx2(block);
- ff_add_pixels_clamped_mmx(block, dest, line_size);
-}
-
static void vorbis_inverse_coupling_3dnow(float *mag, float *ang, int blocksize)
{
int i;
View
25 libavcodec/x86/idct_mmx_xvid.c
@@ -44,6 +44,7 @@
#include "config.h"
#include "libavcodec/avcodec.h"
#include "libavutil/mem.h"
+#include "dsputil_mmx.h"
#include "idct_xvid.h"
#if HAVE_INLINE_ASM
@@ -529,4 +530,28 @@ __asm__ volatile(
:: "r"(block), "r"(rounder_0), "r"(tab_i_04_xmm), "r"(tg_1_16));
}
+void ff_idct_xvid_mmx_put(uint8_t *dest, int line_size, DCTELEM *block)
+{
+ ff_idct_xvid_mmx(block);
+ ff_put_pixels_clamped_mmx(block, dest, line_size);
+}
+
+void ff_idct_xvid_mmx_add(uint8_t *dest, int line_size, DCTELEM *block)
+{
+ ff_idct_xvid_mmx(block);
+ ff_add_pixels_clamped_mmx(block, dest, line_size);
+}
+
+void ff_idct_xvid_mmx2_put(uint8_t *dest, int line_size, DCTELEM *block)
+{
+ ff_idct_xvid_mmx2(block);
+ ff_put_pixels_clamped_mmx(block, dest, line_size);
+}
+
+void ff_idct_xvid_mmx2_add(uint8_t *dest, int line_size, DCTELEM *block)
+{
+ ff_idct_xvid_mmx2(block);
+ ff_add_pixels_clamped_mmx(block, dest, line_size);
+}
+
#endif /* HAVE_INLINE_ASM */
View
8 libavcodec/x86/idct_xvid.h
@@ -28,8 +28,16 @@
#include <stdint.h>
+#include "libavcodec/dsputil.h"
+
void ff_idct_xvid_mmx(short *block);
+void ff_idct_xvid_mmx_put(uint8_t *dest, int line_size, DCTELEM *block);
+void ff_idct_xvid_mmx_add(uint8_t *dest, int line_size, DCTELEM *block);
+
void ff_idct_xvid_mmx2(short *block);
+void ff_idct_xvid_mmx2_put(uint8_t *dest, int line_size, DCTELEM *block);
+void ff_idct_xvid_mmx2_add(uint8_t *dest, int line_size, DCTELEM *block);
+
void ff_idct_xvid_sse2(short *block);
void ff_idct_xvid_sse2_put(uint8_t *dest, int line_size, short *block);
void ff_idct_xvid_sse2_add(uint8_t *dest, int line_size, short *block);
View
2  libavresample/arm/Makefile
@@ -0,0 +1,2 @@
+OBJS += arm/audio_convert_init.o
+NEON-OBJS += arm/audio_convert_neon.o
View
49 libavresample/arm/audio_convert_init.c
@@ -0,0 +1,49 @@
+/*
+ * 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
+ */
+
+#include <stdint.h>
+
+#include "config.h"
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/arm/cpu.h"
+#include "libavutil/samplefmt.h"
+#include "libavresample/audio_convert.h"
+
+void ff_conv_flt_to_s16_neon(int16_t *dst, const float *src, int len);
+void ff_conv_fltp_to_s16_neon(int16_t *dst, float *const *src,
+ int len, int channels);
+void ff_conv_fltp_to_s16_2ch_neon(int16_t *dst, float *const *src,
+ int len, int channels);
+
+av_cold void ff_audio_convert_init_arm(AudioConvert *ac)
+{
+ int cpu_flags = av_get_cpu_flags();
+
+ if (have_neon(cpu_flags)) {
+ ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLT,
+ 0, 16, 8, "NEON",
+ ff_conv_flt_to_s16_neon);
+ ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLTP,
+ 0, 16, 8, "NEON",
+ ff_conv_fltp_to_s16_neon);
+ ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLTP,
+ 2, 16, 8, "NEON",
+ ff_conv_fltp_to_s16_2ch_neon);
+ }
+}
View
363 libavresample/arm/audio_convert_neon.S
@@ -0,0 +1,363 @@
+/*
+ * Copyright (c) 2008 Mans Rullgard <mans@mansr.com>
+ *
+ * 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
+ */
+
+#include "config.h"
+#include "libavutil/arm/asm.S"
+
+function ff_conv_flt_to_s16_neon, export=1
+ subs r2, r2, #8
+ vld1.32 {q0}, [r1,:128]!
+ vcvt.s32.f32 q8, q0, #31
+ vld1.32 {q1}, [r1,:128]!
+ vcvt.s32.f32 q9, q1, #31
+ beq 3f
+ bics r12, r2, #15
+ beq 2f
+1: subs r12, r12, #16
+ vqrshrn.s32 d4, q8, #16
+ vld1.32 {q0}, [r1,:128]!
+ vcvt.s32.f32 q0, q0, #31
+ vqrshrn.s32 d5, q9, #16
+ vld1.32 {q1}, [r1,:128]!
+ vcvt.s32.f32 q1, q1, #31
+ vqrshrn.s32 d6, q0, #16
+ vst1.16 {q2}, [r0,:128]!
+ vqrshrn.s32 d7, q1, #16
+ vld1.32 {q8}, [r1,:128]!
+ vcvt.s32.f32 q8, q8, #31
+ vld1.32 {q9}, [r1,:128]!
+ vcvt.s32.f32 q9, q9, #31
+ vst1.16 {q3}, [r0,:128]!
+ bne 1b
+ ands r2, r2, #15
+ beq 3f
+2: vld1.32 {q0}, [r1,:128]!
+ vqrshrn.s32 d4, q8, #16
+ vcvt.s32.f32 q0, q0, #31
+ vld1.32 {q1}, [r1,:128]!
+ vqrshrn.s32 d5, q9, #16
+ vcvt.s32.f32 q1, q1, #31
+ vqrshrn.s32 d6, q0, #16
+ vst1.16 {q2}, [r0,:128]!
+ vqrshrn.s32 d7, q1, #16
+ vst1.16 {q3}, [r0,:128]!
+ bx lr
+3: vqrshrn.s32 d4, q8, #16
+ vqrshrn.s32 d5, q9, #16
+ vst1.16 {q2}, [r0,:128]!
+ bx lr
+endfunc
+
+function ff_conv_fltp_to_s16_2ch_neon, export=1
+ ldm r1, {r1, r3}
+ subs r2, r2, #8
+ vld1.32 {q0}, [r1,:128]!
+ vcvt.s32.f32 q8, q0, #31
+ vld1.32 {q1}, [r1,:128]!
+ vcvt.s32.f32 q9, q1, #31
+ vld1.32 {q10}, [r3,:128]!
+ vcvt.s32.f32 q10, q10, #31
+ vld1.32 {q11}, [r3,:128]!
+ vcvt.s32.f32 q11, q11, #31
+ beq 3f
+ bics r12, r2, #15
+ beq 2f
+1: subs r12, r12, #16
+ vld1.32 {q0}, [r1,:128]!
+ vcvt.s32.f32 q0, q0, #31
+ vsri.32 q10, q8, #16
+ vld1.32 {q1}, [r1,:128]!
+ vcvt.s32.f32 q1, q1, #31
+ vld1.32 {q12}, [r3,:128]!
+ vcvt.s32.f32 q12, q12, #31
+ vld1.32 {q13}, [r3,:128]!
+ vsri.32 q11, q9, #16
+ vst1.16 {q10}, [r0,:128]!
+ vcvt.s32.f32 q13, q13, #31
+ vst1.16 {q11}, [r0,:128]!
+ vsri.32 q12, q0, #16
+ vld1.32 {q8}, [r1,:128]!
+ vsri.32 q13, q1, #16
+ vst1.16 {q12}, [r0,:128]!
+ vcvt.s32.f32 q8, q8, #31
+ vld1.32 {q9}, [r1,:128]!
+ vcvt.s32.f32 q9, q9, #31
+ vld1.32 {q10}, [r3,:128]!
+ vcvt.s32.f32 q10, q10, #31
+ vld1.32 {q11}, [r3,:128]!
+ vcvt.s32.f32 q11, q11, #31
+ vst1.16 {q13}, [r0,:128]!
+ bne 1b
+ ands r2, r2, #15
+ beq 3f
+2: vsri.32 q10, q8, #16
+ vld1.32 {q0}, [r1,:128]!
+ vcvt.s32.f32 q0, q0, #31
+ vld1.32 {q1}, [r1,:128]!
+ vcvt.s32.f32 q1, q1, #31
+ vld1.32 {q12}, [r3,:128]!
+ vcvt.s32.f32 q12, q12, #31
+ vsri.32 q11, q9, #16
+ vld1.32 {q13}, [r3,:128]!
+ vcvt.s32.f32 q13, q13, #31
+ vst1.16 {q10}, [r0,:128]!
+ vsri.32 q12, q0, #16
+ vst1.16 {q11}, [r0,:128]!
+ vsri.32 q13, q1, #16
+ vst1.16 {q12-q13},[r0,:128]!
+ bx lr
+3: vsri.32 q10, q8, #16
+ vsri.32 q11, q9, #16
+ vst1.16 {q10-q11},[r0,:128]!
+ bx lr
+endfunc
+
+function ff_conv_fltp_to_s16_neon, export=1
+ cmp r3, #2
+ itt lt
+ ldrlt r1, [r1]
+ blt ff_conv_flt_to_s16_neon
+ beq ff_conv_fltp_to_s16_2ch_neon
+
+ push {r4-r8, lr}
+ cmp r3, #4
+ lsl r12, r3, #1
+ blt 4f
+
+ @ 4 channels
+5: ldm r1!, {r4-r7}
+ mov lr, r2
+ mov r8, r0
+ vld1.32 {q8}, [r4,:128]!
+ vcvt.s32.f32 q8, q8, #31
+ vld1.32 {q9}, [r5,:128]!
+ vcvt.s32.f32 q9, q9, #31
+ vld1.32 {q10}, [r6,:128]!
+ vcvt.s32.f32 q10, q10, #31
+ vld1.32 {q11}, [r7,:128]!
+ vcvt.s32.f32 q11, q11, #31
+6: subs lr, lr, #8
+ vld1.32 {q0}, [r4,:128]!
+ vcvt.s32.f32 q0, q0, #31
+ vsri.32 q9, q8, #16
+ vld1.32 {q1}, [r5,:128]!
+ vcvt.s32.f32 q1, q1, #31
+ vsri.32 q11, q10, #16
+ vld1.32 {q2}, [r6,:128]!
+ vcvt.s32.f32 q2, q2, #31
+ vzip.32 d18, d22
+ vld1.32 {q3}, [r7,:128]!
+ vcvt.s32.f32 q3, q3, #31
+ vzip.32 d19, d23
+ vst1.16 {d18}, [r8], r12
+ vsri.32 q1, q0, #16
+ vst1.16 {d22}, [r8], r12
+ vsri.32 q3, q2, #16
+ vst1.16 {d19}, [r8], r12
+ vzip.32 d2, d6
+ vst1.16 {d23}, [r8], r12
+ vzip.32 d3, d7
+ beq 7f
+ vld1.32 {q8}, [r4,:128]!
+ vcvt.s32.f32 q8, q8, #31
+ vst1.16 {d2}, [r8], r12
+ vld1.32 {q9}, [r5,:128]!
+ vcvt.s32.f32 q9, q9, #31
+ vst1.16 {d6}, [r8], r12
+ vld1.32 {q10}, [r6,:128]!
+ vcvt.s32.f32 q10, q10, #31
+ vst1.16 {d3}, [r8], r12
+ vld1.32 {q11}, [r7,:128]!
+ vcvt.s32.f32 q11, q11, #31
+ vst1.16 {d7}, [r8], r12
+ b 6b
+7: vst1.16 {d2}, [r8], r12
+ vst1.16 {d6}, [r8], r12
+ vst1.16 {d3}, [r8], r12
+ vst1.16 {d7}, [r8], r12
+ subs r3, r3, #4
+ it eq
+ popeq {r4-r8, pc}
+ cmp r3, #4
+ add r0, r0, #8
+ bge 5b
+
+ @ 2 channels
+4: cmp r3, #2
+ blt 4f
+ ldm r1!, {r4-r5}
+ mov lr, r2
+ mov r8, r0
+ tst lr, #8
+ vld1.32 {q8}, [r4,:128]!
+ vcvt.s32.f32 q8, q8, #31
+ vld1.32 {q9}, [r5,:128]!
+ vcvt.s32.f32 q9, q9, #31
+ vld1.32 {q10}, [r4,:128]!
+ vcvt.s32.f32 q10, q10, #31
+ vld1.32 {q11}, [r5,:128]!
+ vcvt.s32.f32 q11, q11, #31
+ beq 6f
+ subs lr, lr, #8
+ beq 7f
+ vsri.32 d18, d16, #16
+ vsri.32 d19, d17, #16
+ vld1.32 {q8}, [r4,:128]!
+ vcvt.s32.f32 q8, q8, #31
+ vst1.32 {d18[0]}, [r8], r12
+ vsri.32 d22, d20, #16
+ vst1.32 {d18[1]}, [r8], r12
+ vsri.32 d23, d21, #16
+ vst1.32 {d19[0]}, [r8], r12
+ vst1.32 {d19[1]}, [r8], r12
+ vld1.32 {q9}, [r5,:128]!
+ vcvt.s32.f32 q9, q9, #31
+ vst1.32 {d22[0]}, [r8], r12
+ vst1.32 {d22[1]}, [r8], r12
+ vld1.32 {q10}, [r4,:128]!
+ vcvt.s32.f32 q10, q10, #31
+ vst1.32 {d23[0]}, [r8], r12
+ vst1.32 {d23[1]}, [r8], r12
+ vld1.32 {q11}, [r5,:128]!
+ vcvt.s32.f32 q11, q11, #31
+6: subs lr, lr, #16
+ vld1.32 {q0}, [r4,:128]!
+ vcvt.s32.f32 q0, q0, #31
+ vsri.32 d18, d16, #16
+ vld1.32 {q1}, [r5,:128]!
+ vcvt.s32.f32 q1, q1, #31
+ vsri.32 d19, d17, #16
+ vld1.32 {q2}, [r4,:128]!
+ vcvt.s32.f32 q2, q2, #31
+ vld1.32 {q3}, [r5,:128]!
+ vcvt.s32.f32 q3, q3, #31
+ vst1.32 {d18[0]}, [r8], r12
+ vsri.32 d22, d20, #16
+ vst1.32 {d18[1]}, [r8], r12
+ vsri.32 d23, d21, #16
+ vst1.32 {d19[0]}, [r8], r12
+ vsri.32 d2, d0, #16
+ vst1.32 {d19[1]}, [r8], r12
+ vsri.32 d3, d1, #16
+ vst1.32 {d22[0]}, [r8], r12
+ vsri.32 d6, d4, #16
+ vst1.32 {d22[1]}, [r8], r12
+ vsri.32 d7, d5, #16
+ vst1.32 {d23[0]}, [r8], r12
+ vst1.32 {d23[1]}, [r8], r12
+ beq 6f
+ vld1.32 {q8}, [r4,:128]!
+ vcvt.s32.f32 q8, q8, #31
+ vst1.32 {d2[0]}, [r8], r12
+ vst1.32 {d2[1]}, [r8], r12
+ vld1.32 {q9}, [r5,:128]!
+ vcvt.s32.f32 q9, q9, #31
+ vst1.32 {d3[0]}, [r8], r12
+ vst1.32 {d3[1]}, [r8], r12
+ vld1.32 {q10}, [r4,:128]!
+ vcvt.s32.f32 q10, q10, #31
+ vst1.32 {d6[0]}, [r8], r12
+ vst1.32 {d6[1]}, [r8], r12
+ vld1.32 {q11}, [r5,:128]!
+ vcvt.s32.f32 q11, q11, #31
+ vst1.32 {d7[0]}, [r8], r12
+ vst1.32 {d7[1]}, [r8], r12
+ bgt 6b
+6: vst1.32 {d2[0]}, [r8], r12
+ vst1.32 {d2[1]}, [r8], r12
+ vst1.32 {d3[0]}, [r8], r12
+ vst1.32 {d3[1]}, [r8], r12
+ vst1.32 {d6[0]}, [r8], r12
+ vst1.32 {d6[1]}, [r8], r12
+ vst1.32 {d7[0]}, [r8], r12
+ vst1.32 {d7[1]}, [r8], r12
+ b 8f
+7: vsri.32 d18, d16, #16
+ vsri.32 d19, d17, #16
+ vst1.32 {d18[0]}, [r8], r12
+ vsri.32 d22, d20, #16
+ vst1.32 {d18[1]}, [r8], r12
+ vsri.32 d23, d21, #16
+ vst1.32 {d19[0]}, [r8], r12
+ vst1.32 {d19[1]}, [r8], r12
+ vst1.32 {d22[0]}, [r8], r12
+ vst1.32 {d22[1]}, [r8], r12
+ vst1.32 {d23[0]}, [r8], r12
+ vst1.32 {d23[1]}, [r8], r12
+8: subs r3, r3, #2
+ add r0, r0, #4
+ it eq
+ popeq {r4-r8, pc}
+
+ @ 1 channel
+4: ldr r4, [r1]
+ tst r2, #8
+ mov lr, r2
+ mov r5, r0
+ vld1.32 {q0}, [r4,:128]!
+ vcvt.s32.f32 q0, q0, #31
+ vld1.32 {q1}, [r4,:128]!
+ vcvt.s32.f32 q1, q1, #31
+ bne 8f
+6: subs lr, lr, #16
+ vld1.32 {q2}, [r4,:128]!
+ vcvt.s32.f32 q2, q2, #31
+ vld1.32 {q3}, [r4,:128]!
+ vcvt.s32.f32 q3, q3, #31
+ vst1.16 {d0[1]}, [r5,:16], r12
+ vst1.16 {d0[3]}, [r5,:16], r12
+ vst1.16 {d1[1]}, [r5,:16], r12
+ vst1.16 {d1[3]}, [r5,:16], r12
+ vst1.16 {d2[1]}, [r5,:16], r12
+ vst1.16 {d2[3]}, [r5,:16], r12
+ vst1.16 {d3[1]}, [r5,:16], r12
+ vst1.16 {d3[3]}, [r5,:16], r12
+ beq 7f
+ vld1.32 {q0}, [r4,:128]!
+ vcvt.s32.f32 q0, q0, #31
+ vld1.32 {q1}, [r4,:128]!
+ vcvt.s32.f32 q1, q1, #31
+7: vst1.16 {d4[1]}, [r5,:16], r12
+ vst1.16 {d4[3]}, [r5,:16], r12
+ vst1.16 {d5[1]}, [r5,:16], r12
+ vst1.16 {d5[3]}, [r5,:16], r12
+ vst1.16 {d6[1]}, [r5,:16], r12
+ vst1.16 {d6[3]}, [r5,:16], r12
+ vst1.16 {d7[1]}, [r5,:16], r12
+ vst1.16 {d7[3]}, [r5,:16], r12
+ bgt 6b
+ pop {r4-r8, pc}
+8: subs lr, lr, #8
+ vst1.16 {d0[1]}, [r5,:16], r12
+ vst1.16 {d0[3]}, [r5,:16], r12
+ vst1.16 {d1[1]}, [r5,:16], r12
+ vst1.16 {d1[3]}, [r5,:16], r12
+ vst1.16 {d2[1]}, [r5,:16], r12
+ vst1.16 {d2[3]}, [r5,:16], r12
+ vst1.16 {d3[1]}, [r5,:16], r12
+ vst1.16 {d3[3]}, [r5,:16], r12
+ it eq
+ popeq {r4-r8, pc}
+ vld1.32 {q0}, [r4,:128]!
+ vcvt.s32.f32 q0, q0, #31
+ vld1.32 {q1}, [r4,:128]!
+ vcvt.s32.f32 q1, q1, #31
+ b 6b
+endfunc
View
2  libavresample/audio_convert.c
@@ -276,6 +276,8 @@ AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr,
set_generic_function(ac);
+ if (ARCH_ARM)
+ ff_audio_convert_init_arm(ac);
if (ARCH_X86)
ff_audio_convert_init_x86(ac);
View
1  libavresample/audio_convert.h
@@ -82,6 +82,7 @@ int ff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in, int len);
/* arch-specific initialization functions */
+void ff_audio_convert_init_arm(AudioConvert *ac);
void ff_audio_convert_init_x86(AudioConvert *ac);
#endif /* AVRESAMPLE_AUDIO_CONVERT_H */
View
2  tools/trasher.c
@@ -21,6 +21,8 @@
#include <stdio.h>
#include <stdlib.h>
#include <inttypes.h>
+#include <errno.h>
+#include <string.h>
static uint32_t state;
static uint32_t ran(void)
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