vol->samples_align = 8;
break;
}
+
+ if (ARCH_X86)
+ ff_volume_init_x86(vol);
}
static int config_output(AVFilterLink *outlink)
int samples_align;
} VolumeContext;
+void ff_volume_init_x86(VolumeContext *vol);
+
#endif /* AVFILTER_AF_VOLUME_H */
OBJS-$(CONFIG_GRADFUN_FILTER) += x86/gradfun.o
+OBJS-$(CONFIG_VOLUME_FILTER) += x86/af_volume_init.o
OBJS-$(CONFIG_YADIF_FILTER) += x86/yadif.o
YASM-OBJS-$(CONFIG_HQDN3D_FILTER) += x86/hqdn3d.o
+YASM-OBJS-$(CONFIG_VOLUME_FILTER) += x86/af_volume.o
--- /dev/null
+;*****************************************************************************
+;* x86-optimized functions for volume filter
+;* Copyright (c) 2012 Justin Ruggles <justin.ruggles@gmail.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/x86/x86inc.asm"
+
+SECTION_RODATA 32
+
+pw_1: times 8 dw 1
+pw_128: times 8 dw 128
+
+SECTION_TEXT
+
+;------------------------------------------------------------------------------
+; void ff_scale_samples_s16(uint8_t *dst, const uint8_t *src, int len,
+; int volume)
+;------------------------------------------------------------------------------
+
+INIT_XMM sse2
+cglobal scale_samples_s16, 4,4,4, dst, src, len, volume
+ movd m0, volumem
+ pshuflw m0, m0, 0
+ punpcklwd m0, [pw_1]
+ mova m1, [pw_128]
+ lea lenq, [lend*2-mmsize]
+.loop:
+ ; dst[i] = av_clip_int16((src[i] * volume + 128) >> 8);
+ mova m2, [srcq+lenq]
+ punpcklwd m3, m2, m1
+ punpckhwd m2, m1
+ pmaddwd m3, m0
+ pmaddwd m2, m0
+ psrad m3, 8
+ psrad m2, 8
+ packssdw m3, m2
+ mova [dstq+lenq], m3
+ sub lenq, mmsize
+ jge .loop
+ REP_RET
--- /dev/null
+/*
+ * 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 "config.h"
+#include "libavutil/cpu.h"
+#include "libavutil/samplefmt.h"
+#include "libavutil/x86/cpu.h"
+#include "libavfilter/af_volume.h"
+
+void ff_scale_samples_s16_sse2(uint8_t *dst, const uint8_t *src, int len,
+ int volume);
+
+void ff_volume_init_x86(VolumeContext *vol)
+{
+ int mm_flags = av_get_cpu_flags();
+ enum AVSampleFormat sample_fmt = av_get_packed_sample_fmt(vol->sample_fmt);
+
+ if (sample_fmt == AV_SAMPLE_FMT_S16) {
+ if (EXTERNAL_SSE2(mm_flags) && vol->volume_i < 32768) {
+ vol->scale_samples = ff_scale_samples_s16_sse2;
+ vol->samples_align = 8;
+ }
+ }
+}