[FFmpeg-cvslog] lavfi: port mp=pp7 to libavfilter
Arwa Arif
git at videolan.org
Fri Jan 9 17:35:04 CET 2015
ffmpeg | branch: master | Arwa Arif <arwaarif1994 at gmail.com> | Thu Dec 25 10:08:24 2014 +0530| [a299cd5ab3567bdf855dc84cdbed4d22ea5fcbb6] | committer: Stefano Sabatini
lavfi: port mp=pp7 to libavfilter
The only difference with mp=pp7 is that default mode is "medium", as stated
in the MPlayer docs, rather than "hard".
Signed-off-by: Stefano Sabatini <stefasab at gmail.com>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=a299cd5ab3567bdf855dc84cdbed4d22ea5fcbb6
---
LICENSE.md | 1 +
configure | 1 +
doc/filters.texi | 26 +++
libavfilter/Makefile | 1 +
libavfilter/allfilters.c | 1 +
libavfilter/version.h | 2 +-
libavfilter/vf_pp7.c | 419 ++++++++++++++++++++++++++++++++++++++++++++++
libavfilter/vf_pp7.h | 46 +++++
libavfilter/x86/Makefile | 1 +
libavfilter/x86/vf_pp7.c | 68 ++++++++
10 files changed, 565 insertions(+), 1 deletion(-)
diff --git a/LICENSE.md b/LICENSE.md
index 5659973..e612c22 100644
--- a/LICENSE.md
+++ b/LICENSE.md
@@ -43,6 +43,7 @@ Specifically, the GPL parts of FFmpeg are:
- vf_perspective.c
- vf_phase.c
- vf_pp.c
+ - vf_pp7.c
- vf_pullup.c
- vf_sab.c
- vf_smartblur.c
diff --git a/configure b/configure
index 51999de..6de4bcc 100755
--- a/configure
+++ b/configure
@@ -2600,6 +2600,7 @@ mpdecimate_filter_select="pixelutils"
mptestsrc_filter_deps="gpl"
negate_filter_deps="lut_filter"
perspective_filter_deps="gpl"
+pp7_filter_deps="gpl"
ocv_filter_deps="libopencv"
owdenoise_filter_deps="gpl"
pan_filter_deps="swresample"
diff --git a/doc/filters.texi b/doc/filters.texi
index f14f6a9..0fa60c6 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -7193,6 +7193,32 @@ pp=hb|y/vb|a
@end example
@end itemize
+ at section pp7
+Apply Postprocessing filter 7. It is variant of the @ref{spp} filter,
+similar to spp = 6 with 7 point DCT, where only the center sample is
+used after IDCT.
+
+The filter accepts the following options:
+
+ at table @option
+ at item qp
+Force a constant quantization parameter. It accepts an integer in range
+0 to 63. If not set, the filter will use the QP from the video stream
+(if available).
+
+ at item mode
+Set thresholding mode. Available modes are:
+
+ at table @samp
+ at item hard
+Set hard thresholding.
+ at item soft
+Set soft thresholding (better de-ringing effect, but likely blurrier).
+ at item medium
+Set medium thresholding (good results, default).
+ at end table
+ at end table
+
@section psnr
Obtain the average, maximum and minimum PSNR (Peak Signal to Noise
diff --git a/libavfilter/Makefile b/libavfilter/Makefile
index 0ead6c5..3f8016a 100644
--- a/libavfilter/Makefile
+++ b/libavfilter/Makefile
@@ -164,6 +164,7 @@ OBJS-$(CONFIG_PERSPECTIVE_FILTER) += vf_perspective.o
OBJS-$(CONFIG_PHASE_FILTER) += vf_phase.o
OBJS-$(CONFIG_PIXDESCTEST_FILTER) += vf_pixdesctest.o
OBJS-$(CONFIG_PP_FILTER) += vf_pp.o
+OBJS-$(CONFIG_PP7_FILTER) += vf_pp7.o
OBJS-$(CONFIG_PSNR_FILTER) += vf_psnr.o dualinput.o framesync.o
OBJS-$(CONFIG_PULLUP_FILTER) += vf_pullup.o
OBJS-$(CONFIG_REMOVELOGO_FILTER) += bbox.o lswsutils.o lavfutils.o vf_removelogo.o
diff --git a/libavfilter/allfilters.c b/libavfilter/allfilters.c
index 6543629..a330eb9 100644
--- a/libavfilter/allfilters.c
+++ b/libavfilter/allfilters.c
@@ -179,6 +179,7 @@ void avfilter_register_all(void)
REGISTER_FILTER(PHASE, phase, vf);
REGISTER_FILTER(PIXDESCTEST, pixdesctest, vf);
REGISTER_FILTER(PP, pp, vf);
+ REGISTER_FILTER(PP7, pp7, vf);
REGISTER_FILTER(PSNR, psnr, vf);
REGISTER_FILTER(PULLUP, pullup, vf);
REGISTER_FILTER(REMOVELOGO, removelogo, vf);
diff --git a/libavfilter/version.h b/libavfilter/version.h
index 50967f4..b931aa9 100644
--- a/libavfilter/version.h
+++ b/libavfilter/version.h
@@ -30,7 +30,7 @@
#include "libavutil/version.h"
#define LIBAVFILTER_VERSION_MAJOR 5
-#define LIBAVFILTER_VERSION_MINOR 6
+#define LIBAVFILTER_VERSION_MINOR 7
#define LIBAVFILTER_VERSION_MICRO 100
#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
diff --git a/libavfilter/vf_pp7.c b/libavfilter/vf_pp7.c
new file mode 100644
index 0000000..2f071f2
--- /dev/null
+++ b/libavfilter/vf_pp7.c
@@ -0,0 +1,419 @@
+/*
+ * Copyright (c) 2005 Michael Niedermayer <michaelni at gmx.at>
+ * Copyright (c) 2014 Arwa Arif <arwaarif1994 at gmail.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 General Public License as published by
+ * the Free Software Foundation; either version 2 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU 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.
+ */
+
+/**
+ * @file
+ * Postprocessing filter - 7
+ *
+ * Originally written by Michael Niedermayer for the MPlayer
+ * project, and ported by Arwa Arif for FFmpeg.
+ */
+
+#include "libavutil/avassert.h"
+#include "libavutil/imgutils.h"
+#include "libavutil/opt.h"
+#include "libavutil/pixdesc.h"
+#include "internal.h"
+#include "vf_pp7.h"
+#include "libavcodec/avcodec.h"
+
+enum mode {
+ MODE_HARD,
+ MODE_SOFT,
+ MODE_MEDIUM
+};
+
+#define OFFSET(x) offsetof(PP7Context, x)
+#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
+static const AVOption pp7_options[] = {
+ { "qp", "force a constant quantizer parameter", OFFSET(qp), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 64, FLAGS },
+ { "mode", "set thresholding mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64 = MODE_MEDIUM}, 0, 2, FLAGS, "mode" },
+ { "hard", "hard thresholding", 0, AV_OPT_TYPE_CONST, {.i64 = MODE_HARD}, INT_MIN, INT_MAX, FLAGS, "mode" },
+ { "soft", "soft thresholding", 0, AV_OPT_TYPE_CONST, {.i64 = MODE_SOFT}, INT_MIN, INT_MAX, FLAGS, "mode" },
+ { "medium", "medium thresholding", 0, AV_OPT_TYPE_CONST, {.i64 = MODE_MEDIUM}, INT_MIN, INT_MAX, FLAGS, "mode" },
+ { NULL }
+};
+
+AVFILTER_DEFINE_CLASS(pp7);
+
+DECLARE_ALIGNED(8, static const uint8_t, dither)[8][8] = {
+ { 0, 48, 12, 60, 3, 51, 15, 63, },
+ { 32, 16, 44, 28, 35, 19, 47, 31, },
+ { 8, 56, 4, 52, 11, 59, 7, 55, },
+ { 40, 24, 36, 20, 43, 27, 39, 23, },
+ { 2, 50, 14, 62, 1, 49, 13, 61, },
+ { 34, 18, 46, 30, 33, 17, 45, 29, },
+ { 10, 58, 6, 54, 9, 57, 5, 53, },
+ { 42, 26, 38, 22, 41, 25, 37, 21, },
+};
+
+#define N0 4
+#define N1 5
+#define N2 10
+#define SN0 2
+#define SN1 2.2360679775
+#define SN2 3.16227766017
+#define N (1 << 16)
+
+static const int factor[16] = {
+ N / (N0 * N0), N / (N0 * N1), N / (N0 * N0), N / (N0 * N2),
+ N / (N1 * N0), N / (N1 * N1), N / (N1 * N0), N / (N1 * N2),
+ N / (N0 * N0), N / (N0 * N1), N / (N0 * N0), N / (N0 * N2),
+ N / (N2 * N0), N / (N2 * N1), N / (N2 * N0), N / (N2 * N2),
+};
+
+static const int thres[16] = {
+ N / (SN0 * SN0), N / (SN0 * SN2), N / (SN0 * SN0), N / (SN0 * SN2),
+ N / (SN2 * SN0), N / (SN2 * SN2), N / (SN2 * SN0), N / (SN2 * SN2),
+ N / (SN0 * SN0), N / (SN0 * SN2), N / (SN0 * SN0), N / (SN0 * SN2),
+ N / (SN2 * SN0), N / (SN2 * SN2), N / (SN2 * SN0), N / (SN2 * SN2),
+};
+
+static inline int norm_qscale(int qscale, int type)
+{
+ switch (type) {
+ case FF_QSCALE_TYPE_MPEG1: return qscale;
+ case FF_QSCALE_TYPE_MPEG2: return qscale >> 1;
+ case FF_QSCALE_TYPE_H264: return qscale >> 2;
+ case FF_QSCALE_TYPE_VP56: return (63 - qscale + 2) >> 2;
+ }
+ return qscale;
+}
+
+static void init_thres2(PP7Context *p)
+{
+ int qp, i;
+ int bias = 0; //FIXME
+
+ for (qp = 0; qp < 99; qp++) {
+ for (i = 0; i < 16; i++) {
+ p->thres2[qp][i] = ((i&1) ? SN2 : SN0) * ((i&4) ? SN2 : SN0) * FFMAX(1, qp) * (1<<2) - 1 - bias;
+ }
+ }
+}
+
+static inline void dctA_c(int16_t *dst, uint8_t *src, int stride)
+{
+ int i;
+
+ for (i = 0; i < 4; i++) {
+ int s0 = src[0 * stride] + src[6 * stride];
+ int s1 = src[1 * stride] + src[5 * stride];
+ int s2 = src[2 * stride] + src[4 * stride];
+ int s3 = src[3 * stride];
+ int s = s3 + s3;
+ s3 = s - s0;
+ s0 = s + s0;
+ s = s2 + s1;
+ s2 = s2 - s1;
+ dst[0] = s0 + s;
+ dst[2] = s0 - s;
+ dst[1] = 2 * s3 + s2;
+ dst[3] = s3 - 2 * s2;
+ src++;
+ dst += 4;
+ }
+}
+
+static void dctB_c(int16_t *dst, int16_t *src)
+{
+ int i;
+
+ for (i = 0; i < 4; i++) {
+ int s0 = src[0 * 4] + src[6 * 4];
+ int s1 = src[1 * 4] + src[5 * 4];
+ int s2 = src[2 * 4] + src[4 * 4];
+ int s3 = src[3 * 4];
+ int s = s3 + s3;
+ s3 = s - s0;
+ s0 = s + s0;
+ s = s2 + s1;
+ s2 = s2 - s1;
+ dst[0 * 4] = s0 + s;
+ dst[2 * 4] = s0 - s;
+ dst[1 * 4] = 2 * s3 + s2;
+ dst[3 * 4] = s3 - 2 * s2;
+ src++;
+ dst++;
+ }
+}
+
+static int hardthresh_c(PP7Context *p, int16_t *src, int qp)
+{
+ int i;
+ int a;
+
+ a = src[0] * factor[0];
+ for (i = 1; i < 16; i++) {
+ unsigned int threshold1 = p->thres2[qp][i];
+ unsigned int threshold2 = threshold1 << 1;
+ int level = src[i];
+ if (((unsigned)(level + threshold1)) > threshold2)
+ a += level * factor[i];
+ }
+ return (a + (1 << 11)) >> 12;
+}
+
+static int mediumthresh_c(PP7Context *p, int16_t *src, int qp)
+{
+ int i;
+ int a;
+
+ a = src[0] * factor[0];
+ for (i = 1; i < 16; i++) {
+ unsigned int threshold1 = p->thres2[qp][i];
+ unsigned int threshold2 = threshold1 << 1;
+ int level = src[i];
+ if (((unsigned)(level + threshold1)) > threshold2) {
+ if (((unsigned)(level + 2 * threshold1)) > 2 * threshold2)
+ a += level * factor[i];
+ else {
+ if (level > 0)
+ a += 2 * (level - (int)threshold1) * factor[i];
+ else
+ a += 2 * (level + (int)threshold1) * factor[i];
+ }
+ }
+ }
+ return (a + (1 << 11)) >> 12;
+}
+
+static int softthresh_c(PP7Context *p, int16_t *src, int qp)
+{
+ int i;
+ int a;
+
+ a = src[0] * factor[0];
+ for (i = 1; i < 16; i++) {
+ unsigned int threshold1 = p->thres2[qp][i];
+ unsigned int threshold2 = threshold1 << 1;
+ int level = src[i];
+ if (((unsigned)(level + threshold1)) > threshold2) {
+ if (level > 0)
+ a += (level - (int)threshold1) * factor[i];
+ else
+ a += (level + (int)threshold1) * factor[i];
+ }
+ }
+ return (a + (1 << 11)) >> 12;
+}
+
+static void filter(PP7Context *p, uint8_t *dst, uint8_t *src,
+ int dst_stride, int src_stride,
+ int width, int height,
+ uint8_t *qp_store, int qp_stride, int is_luma)
+{
+ int x, y;
+ const int stride = is_luma ? p->temp_stride : ((width + 16 + 15) & (~15));
+ uint8_t *p_src = p->src + 8 * stride;
+ int16_t *block = (int16_t *)p->src;
+ int16_t *temp = (int16_t *)(p->src + 32);
+
+ if (!src || !dst) return;
+ for (y = 0; y < height; y++) {
+ int index = 8 + 8 * stride + y * stride;
+ memcpy(p_src + index, src + y * src_stride, width);
+ for (x = 0; x < 8; x++) {
+ p_src[index - x - 1]= p_src[index + x ];
+ p_src[index + width + x ]= p_src[index + width - x - 1];
+ }
+ }
+ for (y = 0; y < 8; y++) {
+ memcpy(p_src + ( 7 - y ) * stride, p_src + ( y + 8 ) * stride, stride);
+ memcpy(p_src + (height + 8 + y) * stride, p_src + (height - y + 7) * stride, stride);
+ }
+ //FIXME (try edge emu)
+
+ for (y = 0; y < height; y++) {
+ for (x = -8; x < 0; x += 4) {
+ const int index = x + y * stride + (8 - 3) * (1 + stride) + 8; //FIXME silly offset
+ uint8_t *src = p_src + index;
+ int16_t *tp = temp + 4 * x;
+
+ dctA_c(tp + 4 * 8, src, stride);
+ }
+ for (x = 0; x < width; ) {
+ const int qps = 3 + is_luma;
+ int qp;
+ int end = FFMIN(x + 8, width);
+
+ if (p->qp)
+ qp = p->qp;
+ else {
+ qp = qp_store[ (FFMIN(x, width - 1) >> qps) + (FFMIN(y, height - 1) >> qps) * qp_stride];
+ qp = norm_qscale(qp, p->qscale_type);
+ }
+ for (; x < end; x++) {
+ const int index = x + y * stride + (8 - 3) * (1 + stride) + 8; //FIXME silly offset
+ uint8_t *src = p_src + index;
+ int16_t *tp = temp + 4 * x;
+ int v;
+
+ if ((x & 3) == 0)
+ dctA_c(tp + 4 * 8, src, stride);
+
+ p->dctB(block, tp);
+
+ v = p->requantize(p, block, qp);
+ v = (v + dither[y & 7][x & 7]) >> 6;
+ if ((unsigned)v > 255)
+ v = (-v) >> 31;
+ dst[x + y * dst_stride] = v;
+ }
+ }
+ }
+}
+
+static int query_formats(AVFilterContext *ctx)
+{
+ static const enum PixelFormat pix_fmts[] = {
+ AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV422P,
+ AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV411P,
+ AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV440P,
+ AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ422P,
+ AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ440P,
+ AV_PIX_FMT_GRAY8, AV_PIX_FMT_NONE
+ };
+ ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
+ return 0;
+}
+
+static int config_input(AVFilterLink *inlink)
+{
+ AVFilterContext *ctx = inlink->dst;
+ PP7Context *pp7 = ctx->priv;
+ const int h = FFALIGN(inlink->h + 16, 16);
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
+
+ pp7->hsub = desc->log2_chroma_w;
+ pp7->vsub = desc->log2_chroma_h;
+
+ pp7->temp_stride = FFALIGN(inlink->w + 16, 16);
+ pp7->src = av_malloc(pp7->temp_stride * (h + 8) * sizeof(uint8_t));
+
+ if (!pp7->src)
+ return AVERROR(ENOMEM);
+
+ init_thres2(pp7);
+
+ switch (pp7->mode) {
+ case 0: pp7->requantize = hardthresh_c; break;
+ case 1: pp7->requantize = softthresh_c; break;
+ default:
+ case 2: pp7->requantize = mediumthresh_c; break;
+ }
+
+ pp7->dctB = dctB_c;
+
+ if (ARCH_X86)
+ ff_pp7_init_x86(pp7);
+
+ return 0;
+}
+
+static int filter_frame(AVFilterLink *inlink, AVFrame *in)
+{
+ AVFilterContext *ctx = inlink->dst;
+ PP7Context *pp7 = ctx->priv;
+ AVFilterLink *outlink = ctx->outputs[0];
+ AVFrame *out = in;
+
+ int qp_stride = 0;
+ uint8_t *qp_table = NULL;
+
+ if (!pp7->qp)
+ qp_table = av_frame_get_qp_table(in, &qp_stride, &pp7->qscale_type);
+
+ if (!ctx->is_disabled) {
+ const int cw = FF_CEIL_RSHIFT(inlink->w, pp7->hsub);
+ const int ch = FF_CEIL_RSHIFT(inlink->h, pp7->vsub);
+
+ /* get a new frame if in-place is not possible or if the dimensions
+ * are not multiple of 8 */
+ if (!av_frame_is_writable(in) || (inlink->w & 7) || (inlink->h & 7)) {
+ const int aligned_w = FFALIGN(inlink->w, 8);
+ const int aligned_h = FFALIGN(inlink->h, 8);
+
+ out = ff_get_video_buffer(outlink, aligned_w, aligned_h);
+ if (!out) {
+ av_frame_free(&in);
+ return AVERROR(ENOMEM);
+ }
+ av_frame_copy_props(out, in);
+ }
+
+ if (qp_table || pp7->qp) {
+
+ filter(pp7, out->data[0], in->data[0], out->linesize[0], in->linesize[0],
+ inlink->w, inlink->h, qp_table, qp_stride, 1);
+ filter(pp7, out->data[1], in->data[1], out->linesize[1], in->linesize[1],
+ cw, ch, qp_table, qp_stride, 0);
+ filter(pp7, out->data[2], in->data[2], out->linesize[2], in->linesize[2],
+ cw, ch, qp_table, qp_stride, 0);
+ emms_c();
+ }
+ }
+
+ if (in != out) {
+ if (in->data[3])
+ av_image_copy_plane(out->data[3], out->linesize[3],
+ in ->data[3], in ->linesize[3],
+ inlink->w, inlink->h);
+ av_frame_free(&in);
+ }
+ return ff_filter_frame(outlink, out);
+}
+
+static av_cold void uninit(AVFilterContext *ctx)
+{
+ PP7Context *pp7 = ctx->priv;
+ av_freep(&pp7->src);
+}
+
+static const AVFilterPad pp7_inputs[] = {
+ {
+ .name = "default",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .config_props = config_input,
+ .filter_frame = filter_frame,
+ },
+ { NULL }
+};
+
+static const AVFilterPad pp7_outputs[] = {
+ {
+ .name = "default",
+ .type = AVMEDIA_TYPE_VIDEO,
+ },
+ { NULL }
+};
+
+AVFilter ff_vf_pp7 = {
+ .name = "pp7",
+ .description = NULL_IF_CONFIG_SMALL("Apply Postprocessing 7 filter."),
+ .priv_size = sizeof(PP7Context),
+ .uninit = uninit,
+ .query_formats = query_formats,
+ .inputs = pp7_inputs,
+ .outputs = pp7_outputs,
+ .priv_class = &pp7_class,
+ .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL,
+};
diff --git a/libavfilter/vf_pp7.h b/libavfilter/vf_pp7.h
new file mode 100644
index 0000000..9aa8d73
--- /dev/null
+++ b/libavfilter/vf_pp7.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2005 Michael Niedermayer <michaelni at gmx.at>
+ * Copyright (c) 2014 Arwa Arif <arwaarif1994 at gmail.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 General Public License as published by
+ * the Free Software Foundation; either version 2 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU 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 AVFILTER_PP7_H
+#define AVFILTER_PP7_H
+
+#include "avfilter.h"
+
+typedef struct PP7Context {
+ AVClass *class;
+ int thres2[99][16];
+
+ int qp;
+ int mode;
+ int qscale_type;
+ int hsub;
+ int vsub;
+ int temp_stride;
+ uint8_t *src;
+
+ int (*requantize)(struct PP7Context *p, int16_t *src, int qp);
+ void (*dctB)(int16_t *dst, int16_t *src);
+
+} PP7Context;
+
+void ff_pp7_init_x86(PP7Context *pp7);
+
+#endif /* AVFILTER_PP7_H */
diff --git a/libavfilter/x86/Makefile b/libavfilter/x86/Makefile
index d9265c9..a472a72 100644
--- a/libavfilter/x86/Makefile
+++ b/libavfilter/x86/Makefile
@@ -4,6 +4,7 @@ OBJS-$(CONFIG_HQDN3D_FILTER) += x86/vf_hqdn3d_init.o
OBJS-$(CONFIG_IDET_FILTER) += x86/vf_idet_init.o
OBJS-$(CONFIG_INTERLACE_FILTER) += x86/vf_interlace_init.o
OBJS-$(CONFIG_NOISE_FILTER) += x86/vf_noise.o
+OBJS-$(CONFIG_PP7_FILTER) += x86/vf_pp7.o
OBJS-$(CONFIG_PULLUP_FILTER) += x86/vf_pullup_init.o
OBJS-$(CONFIG_SPP_FILTER) += x86/vf_spp.o
OBJS-$(CONFIG_TINTERLACE_FILTER) += x86/vf_tinterlace_init.o
diff --git a/libavfilter/x86/vf_pp7.c b/libavfilter/x86/vf_pp7.c
new file mode 100644
index 0000000..64c8618
--- /dev/null
+++ b/libavfilter/x86/vf_pp7.c
@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 2005 Michael Niedermayer <michaelni at gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU 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 "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/mem.h"
+#include "libavutil/x86/asm.h"
+#include "libavfilter/vf_pp7.h"
+
+static void dctB_mmx(int16_t *dst, int16_t *src)
+{
+#if HAVE_MMX_INLINE
+ __asm__ volatile (
+ "movq (%0), %%mm0 \n\t"
+ "movq 1*4*2(%0), %%mm1 \n\t"
+ "paddw 6*4*2(%0), %%mm0 \n\t"
+ "paddw 5*4*2(%0), %%mm1 \n\t"
+ "movq 2*4*2(%0), %%mm2 \n\t"
+ "movq 3*4*2(%0), %%mm3 \n\t"
+ "paddw 4*4*2(%0), %%mm2 \n\t"
+ "paddw %%mm3, %%mm3 \n\t" //s
+ "movq %%mm3, %%mm4 \n\t" //s
+ "psubw %%mm0, %%mm3 \n\t" //s-s0
+ "paddw %%mm0, %%mm4 \n\t" //s+s0
+ "movq %%mm2, %%mm0 \n\t" //s2
+ "psubw %%mm1, %%mm2 \n\t" //s2-s1
+ "paddw %%mm1, %%mm0 \n\t" //s2+s1
+ "movq %%mm4, %%mm1 \n\t" //s0'
+ "psubw %%mm0, %%mm4 \n\t" //s0'-s'
+ "paddw %%mm0, %%mm1 \n\t" //s0'+s'
+ "movq %%mm3, %%mm0 \n\t" //s3'
+ "psubw %%mm2, %%mm3 \n\t"
+ "psubw %%mm2, %%mm3 \n\t"
+ "paddw %%mm0, %%mm2 \n\t"
+ "paddw %%mm0, %%mm2 \n\t"
+ "movq %%mm1, (%1) \n\t"
+ "movq %%mm4, 2*4*2(%1) \n\t"
+ "movq %%mm2, 1*4*2(%1) \n\t"
+ "movq %%mm3, 3*4*2(%1) \n\t"
+ :: "r" (src), "r"(dst)
+ );
+#endif
+}
+
+av_cold void ff_pp7_init_x86(PP7Context *p)
+{
+ int cpu_flags = av_get_cpu_flags();
+
+ if (HAVE_MMX_INLINE && cpu_flags & AV_CPU_FLAG_MMX)
+ p->dctB = dctB_mmx;
+}
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