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lavfi: add spp filter.

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This commit is contained in:
Clément Bœsch 2013-05-11 12:03:38 +02:00
parent 129edcb50f
commit a2c547ffec
11 changed files with 773 additions and 2 deletions
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1
Changelog
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@ -67,6 +67,7 @@ version <next>:
- ffprobe -show_chapters option
- WavPack encoding through libwavpack
- rotate filter
- spp filter ported from libmpcodecs
version 1.2:

1
LICENSE
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@ -42,6 +42,7 @@ Specifically, the GPL parts of FFmpeg are
- vf_pp.c
- vf_sab.c
- vf_smartblur.c
- vf_spp.c
- vf_stereo3d.c
- vf_super2xsai.c
- vf_tinterlace.c

1
configure vendored
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@ -2175,6 +2175,7 @@ sab_filter_deps="gpl swscale"
scale_filter_deps="swscale"
smartblur_filter_deps="gpl swscale"
showspectrum_filter_deps="avcodec rdft"
spp_filter_deps="gpl avcodec fft"
stereo3d_filter_deps="gpl"
subtitles_filter_deps="avformat avcodec libass"
super2xsai_filter_deps="gpl"

36
doc/filters.texi
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@ -6476,6 +6476,42 @@ stereo3d=abl:sbsr
@end example
@end itemize
@section spp
Apply a simple postprocessing filter that compresses and decompresses the image
at several (or - in the case of @option{quality} level @code{6} - all) shifts
and average the results.
The filter accepts the following options:
@table @option
@item quality
Set quality. This option defines the number of levels for averaging. It accepts
an integer in the range 0-6. If set to @code{0}, the filter will have no
effect. A value of @code{6} means the higher quality. For each increment of
that value the speed drops by a factor of approximately 2. Default value is
@code{3}.
@item qp
Force a constant quantization parameter. If not set, the filter will use the QP
from the video stream (if available).
@item mode
Set thresholding mode. Available modes are:
@table @samp
@item hard
Set hard thresholding (default).
@item soft
Set soft thresholding (better de-ringing effect, but likely blurrier).
@end table
@item use_bframe_qp
Enable the use of the QP from the B-Frames if set to @code{1}. Using this
option may cause flicker since the B-Frames have often larger QP. Default is
@code{0} (not enabled).
@end table
@anchor{subtitles}
@section subtitles

1
libavfilter/Makefile
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@ -182,6 +182,7 @@ OBJS-$(CONFIG_SETTB_FILTER) += f_settb.o
OBJS-$(CONFIG_SHOWINFO_FILTER) += vf_showinfo.o
OBJS-$(CONFIG_SMARTBLUR_FILTER) += vf_smartblur.o
OBJS-$(CONFIG_SPLIT_FILTER) += split.o
OBJS-$(CONFIG_SPP_FILTER) += vf_spp.o
OBJS-$(CONFIG_STEREO3D_FILTER) += vf_stereo3d.o
OBJS-$(CONFIG_SUBTITLES_FILTER) += vf_subtitles.o
OBJS-$(CONFIG_SUPER2XSAI_FILTER) += vf_super2xsai.o

1
libavfilter/allfilters.c
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@ -177,6 +177,7 @@ void avfilter_register_all(void)
REGISTER_FILTER(SHOWINFO, showinfo, vf);
REGISTER_FILTER(SMARTBLUR, smartblur, vf);
REGISTER_FILTER(SPLIT, split, vf);
REGISTER_FILTER(SPP, spp, vf);
REGISTER_FILTER(STEREO3D, stereo3d, vf);
REGISTER_FILTER(SUBTITLES, subtitles, vf);
REGISTER_FILTER(SUPER2XSAI, super2xsai, vf);

4
libavfilter/version.h
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@ -30,8 +30,8 @@
#include "libavutil/avutil.h"
#define LIBAVFILTER_VERSION_MAJOR 3
#define LIBAVFILTER_VERSION_MINOR 76
#define LIBAVFILTER_VERSION_MICRO 101
#define LIBAVFILTER_VERSION_MINOR 77
#define LIBAVFILTER_VERSION_MICRO 100
#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
LIBAVFILTER_VERSION_MINOR, \

437
libavfilter/vf_spp.c Normal file
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@ -0,0 +1,437 @@
/*
* Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
* Copyright (c) 2013 Clément Bœsch <ubitux@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
* Simple post processing filter
*
* This implementation is based on an algorithm described in
* "Aria Nosratinia Embedded Post-Processing for
* Enhancement of Compressed Images (1999)"
*
* Originally written by Michael Niedermayer for the MPlayer project, and
* ported by Clément Bœsch for FFmpeg.
*/
#include "libavcodec/dsputil.h"
#include "libavutil/avassert.h"
#include "libavutil/imgutils.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "internal.h"
#include "vf_spp.h"
enum mode {
MODE_HARD,
MODE_SOFT,
NB_MODES
};
#define OFFSET(x) offsetof(SPPContext, x)
#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
static const AVOption spp_options[] = {
{ "quality", "set quality", OFFSET(log2_count), AV_OPT_TYPE_INT, {.i64 = 3}, 0, MAX_LEVEL, FLAGS },
{ "qp", "force a constant quantizer parameter", OFFSET(qp), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 63, FLAGS },
{ "mode", "set thresholding mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64 = MODE_HARD}, 0, NB_MODES - 1, 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" },
{ "use_bframe_qp", "use B-frames' QP", OFFSET(use_bframe_qp), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, FLAGS },
{ NULL }
};
AVFILTER_DEFINE_CLASS(spp);
// XXX: share between filters?
DECLARE_ALIGNED(8, static const uint8_t, ldither)[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 },
};
static const uint8_t offset[127][2] = {
{0,0},
{0,0}, {4,4}, // quality = 1
{0,0}, {2,2}, {6,4}, {4,6}, // quality = 2
{0,0}, {5,1}, {2,2}, {7,3}, {4,4}, {1,5}, {6,6}, {3,7}, // quality = 3
{0,0}, {4,0}, {1,1}, {5,1}, {3,2}, {7,2}, {2,3}, {6,3}, // quality = 4
{0,4}, {4,4}, {1,5}, {5,5}, {3,6}, {7,6}, {2,7}, {6,7},
{0,0}, {0,2}, {0,4}, {0,6}, {1,1}, {1,3}, {1,5}, {1,7}, // quality = 5
{2,0}, {2,2}, {2,4}, {2,6}, {3,1}, {3,3}, {3,5}, {3,7},
{4,0}, {4,2}, {4,4}, {4,6}, {5,1}, {5,3}, {5,5}, {5,7},
{6,0}, {6,2}, {6,4}, {6,6}, {7,1}, {7,3}, {7,5}, {7,7},
{0,0}, {4,4}, {0,4}, {4,0}, {2,2}, {6,6}, {2,6}, {6,2}, // quality = 6
{0,2}, {4,6}, {0,6}, {4,2}, {2,0}, {6,4}, {2,4}, {6,0},
{1,1}, {5,5}, {1,5}, {5,1}, {3,3}, {7,7}, {3,7}, {7,3},
{1,3}, {5,7}, {1,7}, {5,3}, {3,1}, {7,5}, {3,5}, {7,1},
{0,1}, {4,5}, {0,5}, {4,1}, {2,3}, {6,7}, {2,7}, {6,3},
{0,3}, {4,7}, {0,7}, {4,3}, {2,1}, {6,5}, {2,5}, {6,1},
{1,0}, {5,4}, {1,4}, {5,0}, {3,2}, {7,6}, {3,6}, {7,2},
{1,2}, {5,6}, {1,6}, {5,2}, {3,0}, {7,4}, {3,4}, {7,0},
};
static void hardthresh_c(int16_t dst[64], const int16_t src[64],
int qp, const uint8_t *permutation)
{
int i;
int bias = 0; // FIXME
unsigned threshold1 = qp * ((1<<4) - bias) - 1;
unsigned threshold2 = threshold1 << 1;
memset(dst, 0, 64 * sizeof(dst[0]));
dst[0] = (src[0] + 4) >> 3;
for (i = 1; i < 64; i++) {
int level = src[i];
if (((unsigned)(level + threshold1)) > threshold2) {
const int j = permutation[i];
dst[j] = (level + 4) >> 3;
}
}
}
static void softthresh_c(int16_t dst[64], const int16_t src[64],
int qp, const uint8_t *permutation)
{
int i;
int bias = 0; //FIXME
unsigned threshold1 = qp * ((1<<4) - bias) - 1;
unsigned threshold2 = threshold1 << 1;
memset(dst, 0, 64 * sizeof(dst[0]));
dst[0] = (src[0] + 4) >> 3;
for (i = 1; i < 64; i++) {
int level = src[i];
if (((unsigned)(level + threshold1)) > threshold2) {
const int j = permutation[i];
if (level > 0) dst[j] = (level - threshold1 + 4) >> 3;
else dst[j] = (level + threshold1 + 4) >> 3;
}
}
}
static void store_slice_c(uint8_t *dst, const int16_t *src,
int dst_linesize, int src_linesize,
int width, int height, int log2_scale,
const uint8_t dither[8][8])
{
int y, x;
#define STORE(pos) do { \
temp = ((src[x + y*src_linesize + pos] << log2_scale) + d[pos]) >> 6; \
if (temp & 0x100) \
temp = ~(temp >> 31); \
dst[x + y*dst_linesize + pos] = temp; \
} while (0)
for (y = 0; y < height; y++) {
const uint8_t *d = dither[y];
for (x = 0; x < width; x += 8) {
int temp;
STORE(0);
STORE(1);
STORE(2);
STORE(3);
STORE(4);
STORE(5);
STORE(6);
STORE(7);
}
}
}
static inline void add_block(int16_t *dst, int linesize, const int16_t block[64])
{
int y;
for (y = 0; y < 8; y++) {
*(uint32_t *)&dst[0 + y*linesize] += *(uint32_t *)&block[0 + y*8];
*(uint32_t *)&dst[2 + y*linesize] += *(uint32_t *)&block[2 + y*8];
*(uint32_t *)&dst[4 + y*linesize] += *(uint32_t *)&block[4 + y*8];
*(uint32_t *)&dst[6 + y*linesize] += *(uint32_t *)&block[6 + y*8];
}
}
// XXX: export the function?
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 filter(SPPContext *p, uint8_t *dst, uint8_t *src,
int dst_linesize, int src_linesize, int width, int height,
const uint8_t *qp_table, int qp_stride, int is_luma)
{
int x, y, i;
const int count = 1 << p->log2_count;
const int linesize = is_luma ? p->temp_linesize : FFALIGN(width+16, 16);
DECLARE_ALIGNED(16, uint64_t, block_align)[32];
int16_t *block = (int16_t *)block_align;
int16_t *block2 = (int16_t *)(block_align + 16);
for (y = 0; y < height; y++) {
int index = 8 + 8*linesize + y*linesize;
memcpy(p->src + index, src + y*src_linesize, 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)*linesize, p->src + ( y+8)*linesize, linesize);
memcpy(p->src + (height+8+y)*linesize, p->src + (height-y+7)*linesize, linesize);
}
for (y = 0; y < height + 8; y += 8) {
memset(p->temp + (8 + y) * linesize, 0, 8 * linesize * sizeof(*p->temp));
for (x = 0; x < width + 8; x += 8) {
int qp;
if (p->qp) {
qp = p->qp;
} else{
const int qps = 3 + is_luma;
qp = qp_table[(FFMIN(x, width - 1) >> qps) + (FFMIN(y, height - 1) >> qps) * qp_stride];
qp = FFMAX(1, norm_qscale(qp, p->qscale_type));
}
for (i = 0; i < count; i++) {
const int x1 = x + offset[i + count - 1][0];
const int y1 = y + offset[i + count - 1][1];
const int index = x1 + y1*linesize;
p->dsp.get_pixels(block, p->src + index, linesize);
p->dsp.fdct(block);
p->requantize(block2, block, qp, p->dsp.idct_permutation);
p->dsp.idct(block2);
add_block(p->temp + index, linesize, block2);
}
}
if (y)
p->store_slice(dst + (y - 8) * dst_linesize, p->temp + 8 + y*linesize,
dst_linesize, linesize, width,
FFMIN(8, height + 8 - y), MAX_LEVEL - p->log2_count,
ldither);
}
}
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_NONE
};
ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
return 0;
}
static int config_input(AVFilterLink *inlink)
{
SPPContext *spp = inlink->dst->priv;
const int h = FFALIGN(inlink->h + 16, 16);
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
spp->hsub = desc->log2_chroma_w;
spp->vsub = desc->log2_chroma_h;
spp->temp_linesize = FFALIGN(inlink->w + 16, 16);
spp->temp = av_malloc(spp->temp_linesize * h * sizeof(*spp->temp));
spp->src = av_malloc(spp->temp_linesize * h * sizeof(*spp->src));
if (!spp->use_bframe_qp) {
/* we are assuming here the qp blocks will not be smaller that 16x16 */
spp->non_b_qp_alloc_size = FF_CEIL_RSHIFT(inlink->w, 4) * FF_CEIL_RSHIFT(inlink->h, 4);
spp->non_b_qp_table = av_calloc(spp->non_b_qp_alloc_size, sizeof(*spp->non_b_qp_table));
if (!spp->non_b_qp_table)
return AVERROR(ENOMEM);
}
if (!spp->temp || !spp->src)
return AVERROR(ENOMEM);
return 0;
}
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
{
AVFilterContext *ctx = inlink->dst;
SPPContext *spp = ctx->priv;
AVFilterLink *outlink = ctx->outputs[0];
AVFrame *out = in;
int qp_stride = 0;
const int8_t *qp_table = NULL;
/* if we are not in a constant user quantizer mode and we don't want to use
* the quantizers from the B-frames (B-frames often have a higher QP), we
* need to save the qp table from the last non B-frame; this is what the
* following code block does */
if (!spp->qp) {
qp_table = av_frame_get_qp_table(in, &qp_stride, &spp->qscale_type);
if (qp_table && !spp->use_bframe_qp && in->pict_type != AV_PICTURE_TYPE_B) {
int w, h;
/* if the qp stride is not set, it means the QP are only defined on
* a line basis */
if (!qp_stride) {
w = FF_CEIL_RSHIFT(inlink->w, 4);
h = 1;
} else {
w = FF_CEIL_RSHIFT(qp_stride, 4);
h = FF_CEIL_RSHIFT(inlink->h, 4);
}
av_assert0(w * h <= spp->non_b_qp_alloc_size);
memcpy(spp->non_b_qp_table, qp_table, w * h);
}
}
if (spp->log2_count && !ctx->is_disabled) {
if (!spp->use_bframe_qp && spp->non_b_qp_table)
qp_table = spp->non_b_qp_table;
if (qp_table || spp->qp) {
const int cw = FF_CEIL_RSHIFT(inlink->w, spp->hsub);
const int ch = FF_CEIL_RSHIFT(inlink->h, spp->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);
out->width = in->width;
out->height = in->height;
}
filter(spp, out->data[0], in->data[0], out->linesize[0], in->linesize[0], inlink->w, inlink->h, qp_table, qp_stride, 1);
filter(spp, out->data[1], in->data[1], out->linesize[1], in->linesize[1], cw, ch, qp_table, qp_stride, 0);
filter(spp, 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 int process_command(AVFilterContext *ctx, const char *cmd, const char *args,
char *res, int res_len, int flags)
{
SPPContext *spp = ctx->priv;
if (!strcmp(cmd, "level")) {
if (!strcmp(args, "max"))
spp->log2_count = MAX_LEVEL;
else
spp->log2_count = av_clip(strtol(args, NULL, 10), 0, MAX_LEVEL);
return 0;
}
return AVERROR(ENOSYS);
}
static av_cold int init(AVFilterContext *ctx)
{
SPPContext *spp = ctx->priv;
spp->avctx = avcodec_alloc_context3(NULL);
if (!spp->avctx)
return AVERROR(ENOMEM);
avpriv_dsputil_init(&spp->dsp, spp->avctx);
spp->store_slice = store_slice_c;
switch (spp->mode) {
case MODE_HARD: spp->requantize = hardthresh_c; break;
case MODE_SOFT: spp->requantize = softthresh_c; break;
}
if (ARCH_X86)
ff_spp_init_x86(spp);
return 0;
}
static av_cold void uninit(AVFilterContext *ctx)
{
SPPContext *spp = ctx->priv;
av_freep(&spp->temp);
av_freep(&spp->src);
if (spp->avctx) {
avcodec_close(spp->avctx);
av_freep(&spp->avctx);
}
av_freep(&spp->non_b_qp_table);
}
static const AVFilterPad spp_inputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.config_props = config_input,
.filter_frame = filter_frame,
},
{ NULL }
};
static const AVFilterPad spp_outputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
},
{ NULL }
};
AVFilter avfilter_vf_spp = {
.name = "spp",
.description = NULL_IF_CONFIG_SMALL("XXX"),
.priv_size = sizeof(SPPContext),
.init = init,
.uninit = uninit,
.query_formats = query_formats,
.inputs = spp_inputs,
.outputs = spp_outputs,
.process_command = process_command,
.priv_class = &spp_class,
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL,
};

59
libavfilter/vf_spp.h Normal file
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@ -0,0 +1,59 @@
/*
* Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
* Copyright (c) 2013 Clément Bœsch
*
* 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_SPP_H
#define AVFILTER_SPP_H
#include "libavcodec/avcodec.h"
#include "libavcodec/dsputil.h"
#include "avfilter.h"
#define MAX_LEVEL 6 /* quality levels */
typedef struct {
const AVClass *av_class;
int log2_count;
int qp;
int mode;
int qscale_type;
int temp_linesize;
uint8_t *src;
int16_t *temp;
AVCodecContext *avctx;
DSPContext dsp;
int8_t *non_b_qp_table;
int non_b_qp_alloc_size;
int use_bframe_qp;
int hsub, vsub;
void (*store_slice)(uint8_t *dst, const int16_t *src,
int dst_stride, int src_stride,
int width, int height, int log2_scale,
const uint8_t dither[8][8]);
void (*requantize)(int16_t dst[64], const int16_t src[64],
int qp, const uint8_t *permutation);
} SPPContext;
void ff_spp_init_x86(SPPContext *s);
#endif /* AVFILTER_SPP_H */

1
libavfilter/x86/Makefile
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@ -1,5 +1,6 @@
OBJS-$(CONFIG_GRADFUN_FILTER) += x86/vf_gradfun.o
OBJS-$(CONFIG_HQDN3D_FILTER) += x86/vf_hqdn3d_init.o
OBJS-$(CONFIG_SPP_FILTER) += x86/vf_spp.o
OBJS-$(CONFIG_VOLUME_FILTER) += x86/af_volume_init.o
OBJS-$(CONFIG_YADIF_FILTER) += x86/vf_yadif_init.o

233
libavfilter/x86/vf_spp.c Normal file
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@ -0,0 +1,233 @@
/*
* Copyright (c) 2003 Michael Niedermayer <michaelni@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_spp.h"
#if HAVE_MMX_INLINE
static void hardthresh_mmx(int16_t dst[64], const int16_t src[64],
int qp, const uint8_t *permutation)
{
int bias = 0; //FIXME
unsigned int threshold1;
threshold1 = qp * ((1<<4) - bias) - 1;
#define REQUANT_CORE(dst0, dst1, dst2, dst3, src0, src1, src2, src3) \
"movq " #src0 ", %%mm0 \n" \
"movq " #src1 ", %%mm1 \n" \
"movq " #src2 ", %%mm2 \n" \
"movq " #src3 ", %%mm3 \n" \
"psubw %%mm4, %%mm0 \n" \
"psubw %%mm4, %%mm1 \n" \
"psubw %%mm4, %%mm2 \n" \
"psubw %%mm4, %%mm3 \n" \
"paddusw %%mm5, %%mm0 \n" \
"paddusw %%mm5, %%mm1 \n" \
"paddusw %%mm5, %%mm2 \n" \
"paddusw %%mm5, %%mm3 \n" \
"paddw %%mm6, %%mm0 \n" \
"paddw %%mm6, %%mm1 \n" \
"paddw %%mm6, %%mm2 \n" \
"paddw %%mm6, %%mm3 \n" \
"psubusw %%mm6, %%mm0 \n" \
"psubusw %%mm6, %%mm1 \n" \
"psubusw %%mm6, %%mm2 \n" \
"psubusw %%mm6, %%mm3 \n" \
"psraw $3, %%mm0 \n" \
"psraw $3, %%mm1 \n" \
"psraw $3, %%mm2 \n" \
"psraw $3, %%mm3 \n" \
\
"movq %%mm0, %%mm7 \n" \
"punpcklwd %%mm2, %%mm0 \n" /*A*/ \
"punpckhwd %%mm2, %%mm7 \n" /*C*/ \
"movq %%mm1, %%mm2 \n" \
"punpcklwd %%mm3, %%mm1 \n" /*B*/ \
"punpckhwd %%mm3, %%mm2 \n" /*D*/ \
"movq %%mm0, %%mm3 \n" \
"punpcklwd %%mm1, %%mm0 \n" /*A*/ \
"punpckhwd %%mm7, %%mm3 \n" /*C*/ \
"punpcklwd %%mm2, %%mm7 \n" /*B*/ \
"punpckhwd %%mm2, %%mm1 \n" /*D*/ \
\
"movq %%mm0, " #dst0 " \n" \
"movq %%mm7, " #dst1 " \n" \
"movq %%mm3, " #dst2 " \n" \
"movq %%mm1, " #dst3 " \n"
__asm__ volatile(
"movd %2, %%mm4 \n"
"movd %3, %%mm5 \n"
"movd %4, %%mm6 \n"
"packssdw %%mm4, %%mm4 \n"
"packssdw %%mm5, %%mm5 \n"
"packssdw %%mm6, %%mm6 \n"
"packssdw %%mm4, %%mm4 \n"
"packssdw %%mm5, %%mm5 \n"
"packssdw %%mm6, %%mm6 \n"
REQUANT_CORE( (%1), 8(%1), 16(%1), 24(%1), (%0), 8(%0), 64(%0), 72(%0))
REQUANT_CORE(32(%1), 40(%1), 48(%1), 56(%1),16(%0),24(%0), 48(%0), 56(%0))
REQUANT_CORE(64(%1), 72(%1), 80(%1), 88(%1),32(%0),40(%0), 96(%0),104(%0))
REQUANT_CORE(96(%1),104(%1),112(%1),120(%1),80(%0),88(%0),112(%0),120(%0))
: : "r" (src), "r" (dst), "g" (threshold1+1), "g" (threshold1+5), "g" (threshold1-4) //FIXME maybe more accurate then needed?
);
dst[0] = (src[0] + 4) >> 3;
}
static void softthresh_mmx(int16_t dst[64], const int16_t src[64],
int qp, const uint8_t *permutation)
{
int bias = 0; //FIXME
unsigned int threshold1;
threshold1 = qp*((1<<4) - bias) - 1;
#undef REQUANT_CORE
#define REQUANT_CORE(dst0, dst1, dst2, dst3, src0, src1, src2, src3) \
"movq " #src0 ", %%mm0 \n" \
"movq " #src1 ", %%mm1 \n" \
"pxor %%mm6, %%mm6 \n" \
"pxor %%mm7, %%mm7 \n" \
"pcmpgtw %%mm0, %%mm6 \n" \
"pcmpgtw %%mm1, %%mm7 \n" \
"pxor %%mm6, %%mm0 \n" \
"pxor %%mm7, %%mm1 \n" \
"psubusw %%mm4, %%mm0 \n" \
"psubusw %%mm4, %%mm1 \n" \
"pxor %%mm6, %%mm0 \n" \
"pxor %%mm7, %%mm1 \n" \
"movq " #src2 ", %%mm2 \n" \
"movq " #src3 ", %%mm3 \n" \
"pxor %%mm6, %%mm6 \n" \
"pxor %%mm7, %%mm7 \n" \
"pcmpgtw %%mm2, %%mm6 \n" \
"pcmpgtw %%mm3, %%mm7 \n" \
"pxor %%mm6, %%mm2 \n" \
"pxor %%mm7, %%mm3 \n" \
"psubusw %%mm4, %%mm2 \n" \
"psubusw %%mm4, %%mm3 \n" \
"pxor %%mm6, %%mm2 \n" \
"pxor %%mm7, %%mm3 \n" \
\
"paddsw %%mm5, %%mm0 \n" \
"paddsw %%mm5, %%mm1 \n" \
"paddsw %%mm5, %%mm2 \n" \
"paddsw %%mm5, %%mm3 \n" \
"psraw $3, %%mm0 \n" \
"psraw $3, %%mm1 \n" \
"psraw $3, %%mm2 \n" \
"psraw $3, %%mm3 \n" \
\
"movq %%mm0, %%mm7 \n" \
"punpcklwd %%mm2, %%mm0 \n" /*A*/ \
"punpckhwd %%mm2, %%mm7 \n" /*C*/ \
"movq %%mm1, %%mm2 \n" \
"punpcklwd %%mm3, %%mm1 \n" /*B*/ \
"punpckhwd %%mm3, %%mm2 \n" /*D*/ \
"movq %%mm0, %%mm3 \n" \
"punpcklwd %%mm1, %%mm0 \n" /*A*/ \
"punpckhwd %%mm7, %%mm3 \n" /*C*/ \
"punpcklwd %%mm2, %%mm7 \n" /*B*/ \
"punpckhwd %%mm2, %%mm1 \n" /*D*/ \
\
"movq %%mm0, " #dst0 " \n" \
"movq %%mm7, " #dst1 " \n" \
"movq %%mm3, " #dst2 " \n" \
"movq %%mm1, " #dst3 " \n"
__asm__ volatile(
"movd %2, %%mm4 \n"
"movd %3, %%mm5 \n"
"packssdw %%mm4, %%mm4 \n"
"packssdw %%mm5, %%mm5 \n"
"packssdw %%mm4, %%mm4 \n"
"packssdw %%mm5, %%mm5 \n"
REQUANT_CORE( (%1), 8(%1), 16(%1), 24(%1), (%0), 8(%0), 64(%0), 72(%0))
REQUANT_CORE(32(%1), 40(%1), 48(%1), 56(%1),16(%0),24(%0), 48(%0), 56(%0))
REQUANT_CORE(64(%1), 72(%1), 80(%1), 88(%1),32(%0),40(%0), 96(%0),104(%0))
REQUANT_CORE(96(%1),104(%1),112(%1),120(%1),80(%0),88(%0),112(%0),120(%0))
: : "r" (src), "r" (dst), "g" (threshold1), "rm" (4) //FIXME maybe more accurate then needed?
);
dst[0] = (src[0] + 4) >> 3;
}
static void store_slice_mmx(uint8_t *dst, const int16_t *src,
int dst_stride, int src_stride,
int width, int height, int log2_scale,
const uint8_t dither[8][8])
{
int y;
for (y = 0; y < height; y++) {
uint8_t *dst1 = dst;
const int16_t *src1 = src;
__asm__ volatile(
"movq (%3), %%mm3 \n"
"movq (%3), %%mm4 \n"
"movd %4, %%mm2 \n"
"pxor %%mm0, %%mm0 \n"
"punpcklbw %%mm0, %%mm3 \n"
"punpckhbw %%mm0, %%mm4 \n"
"psraw %%mm2, %%mm3 \n"
"psraw %%mm2, %%mm4 \n"
"movd %5, %%mm2 \n"
"1: \n"
"movq (%0), %%mm0 \n"
"movq 8(%0), %%mm1 \n"
"paddw %%mm3, %%mm0 \n"
"paddw %%mm4, %%mm1 \n"
"psraw %%mm2, %%mm0 \n"
"psraw %%mm2, %%mm1 \n"
"packuswb %%mm1, %%mm0 \n"
"movq %%mm0, (%1) \n"
"add $16, %0 \n"
"add $8, %1 \n"
"cmp %2, %1 \n"
" jb 1b \n"
: "+r" (src1), "+r"(dst1)
: "r"(dst + width), "r"(dither[y]), "g"(log2_scale), "g"(MAX_LEVEL - log2_scale)
);
src += src_stride;
dst += dst_stride;
}
}
#endif /* HAVE_MMX_INLINE */
av_cold void ff_spp_init_x86(SPPContext *s)
{
#if HAVE_MMX_INLINE
int cpu_flags = av_get_cpu_flags();
if (cpu_flags & AV_CPU_FLAG_MMX) {
s->store_slice = store_slice_mmx;
switch (s->mode) {
case 0: s->requantize = hardthresh_mmx; break;
case 1: s->requantize = softthresh_mmx; break;
}
}
#endif
}