forked from KolibriOS/kolibrios
292 lines
12 KiB
C
292 lines
12 KiB
C
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/*
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* Copyright (c) 2013 Georg Martius <georg dot martius at web dot de>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#define DEFAULT_INPUT_NAME "transforms.trf"
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#include <vid.stab/libvidstab.h>
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#include "libavutil/common.h"
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#include "libavutil/opt.h"
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#include "libavutil/imgutils.h"
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#include "avfilter.h"
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#include "internal.h"
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#include "vidstabutils.h"
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typedef struct {
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const AVClass *class;
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VSTransformData td;
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VSTransformConfig conf;
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VSTransformations trans; // transformations
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char *input; // name of transform file
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int tripod;
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} TransformContext;
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#define OFFSET(x) offsetof(TransformContext, x)
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#define OFFSETC(x) (offsetof(TransformContext, conf)+offsetof(VSTransformConfig, x))
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#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
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static const AVOption vidstabtransform_options[] = {
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{"input", "path to the file storing the transforms", OFFSET(input),
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AV_OPT_TYPE_STRING, {.str = DEFAULT_INPUT_NAME}, .flags = FLAGS },
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{"smoothing", "number of frames*2 + 1 used for lowpass filtering", OFFSETC(smoothing),
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AV_OPT_TYPE_INT, {.i64 = 10}, 1, 1000, FLAGS},
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{"maxshift", "maximal number of pixels to translate image", OFFSETC(maxShift),
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AV_OPT_TYPE_INT, {.i64 = -1}, -1, 500, FLAGS},
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{"maxangle", "maximal angle in rad to rotate image", OFFSETC(maxAngle),
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AV_OPT_TYPE_DOUBLE, {.dbl = -1.0}, -1.0, 3.14, FLAGS},
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{"crop", "set cropping mode", OFFSETC(crop),
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AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, FLAGS, "crop"},
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{ "keep", "keep border", 0,
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AV_OPT_TYPE_CONST, {.i64 = VSKeepBorder }, 0, 0, FLAGS, "crop"},
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{ "black", "black border", 0,
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AV_OPT_TYPE_CONST, {.i64 = VSCropBorder }, 0, 0, FLAGS, "crop"},
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{"invert", "1: invert transforms", OFFSETC(invert),
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AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, FLAGS},
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{"relative", "consider transforms as 0: absolute, 1: relative", OFFSETC(relative),
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AV_OPT_TYPE_INT, {.i64 = 1}, 0, 1, FLAGS},
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{"zoom", "percentage to zoom >0: zoom in, <0 zoom out", OFFSETC(zoom),
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AV_OPT_TYPE_DOUBLE, {.dbl = 0}, -100, 100, FLAGS},
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{"optzoom", "0: nothing, 1: determine optimal zoom (added to 'zoom')", OFFSETC(optZoom),
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AV_OPT_TYPE_INT, {.i64 = 1}, 0, 2, FLAGS},
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{"interpol", "type of interpolation", OFFSETC(interpolType),
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AV_OPT_TYPE_INT, {.i64 = 2}, 0, 3, FLAGS, "interpol"},
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{ "no", "no interpolation", 0,
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AV_OPT_TYPE_CONST, {.i64 = VS_Zero }, 0, 0, FLAGS, "interpol"},
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{ "linear", "linear (horizontal)", 0,
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AV_OPT_TYPE_CONST, {.i64 = VS_Linear }, 0, 0, FLAGS, "interpol"},
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{ "bilinear","bi-linear", 0,
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AV_OPT_TYPE_CONST, {.i64 = VS_BiLinear},0, 0, FLAGS, "interpol"},
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{ "bicubic", "bi-cubic", 0,
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AV_OPT_TYPE_CONST, {.i64 = VS_BiCubic },0, 0, FLAGS, "interpol"},
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{"tripod", "if 1: virtual tripod mode (equiv. to relative=0:smoothing=0)", OFFSET(tripod),
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AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, FLAGS},
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{NULL}
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};
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AVFILTER_DEFINE_CLASS(vidstabtransform);
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static av_cold int init(AVFilterContext *ctx)
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{
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TransformContext *tc = ctx->priv;
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vs_set_mem_and_log_functions();
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tc->class = &vidstabtransform_class;
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av_log(ctx, AV_LOG_VERBOSE, "vidstabtransform filter: init %s\n", LIBVIDSTAB_VERSION);
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return 0;
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}
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static av_cold void uninit(AVFilterContext *ctx)
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{
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TransformContext *tc = ctx->priv;
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vsTransformDataCleanup(&tc->td);
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vsTransformationsCleanup(&tc->trans);
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}
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static int query_formats(AVFilterContext *ctx)
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{
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// If you add something here also add it in vidstabutils.c
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static const enum AVPixelFormat pix_fmts[] = {
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AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV420P,
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AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUVA420P,
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AV_PIX_FMT_YUV440P, AV_PIX_FMT_GRAY8,
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AV_PIX_FMT_RGB24, AV_PIX_FMT_BGR24, AV_PIX_FMT_RGBA,
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AV_PIX_FMT_NONE
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};
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ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
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return 0;
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}
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static int config_input(AVFilterLink *inlink)
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{
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AVFilterContext *ctx = inlink->dst;
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TransformContext *tc = ctx->priv;
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FILE *f;
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const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
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VSTransformData *td = &(tc->td);
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VSFrameInfo fi_src;
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VSFrameInfo fi_dest;
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if (!vsFrameInfoInit(&fi_src, inlink->w, inlink->h,
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av_2_vs_pixel_format(ctx, inlink->format)) ||
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!vsFrameInfoInit(&fi_dest, inlink->w, inlink->h,
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av_2_vs_pixel_format(ctx, inlink->format))) {
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av_log(ctx, AV_LOG_ERROR, "unknown pixel format: %i (%s)",
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inlink->format, desc->name);
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return AVERROR(EINVAL);
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}
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if (fi_src.bytesPerPixel != av_get_bits_per_pixel(desc)/8 ||
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fi_src.log2ChromaW != desc->log2_chroma_w ||
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fi_src.log2ChromaH != desc->log2_chroma_h) {
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av_log(ctx, AV_LOG_ERROR, "pixel-format error: bpp %i<>%i ",
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fi_src.bytesPerPixel, av_get_bits_per_pixel(desc)/8);
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av_log(ctx, AV_LOG_ERROR, "chroma_subsampl: w: %i<>%i h: %i<>%i\n",
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fi_src.log2ChromaW, desc->log2_chroma_w,
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fi_src.log2ChromaH, desc->log2_chroma_h);
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return AVERROR(EINVAL);
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}
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// set values that are not initializes by the options
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tc->conf.modName = "vidstabtransform";
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tc->conf.verbose =1;
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if (tc->tripod) {
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av_log(ctx, AV_LOG_INFO, "Virtual tripod mode: relative=0, smoothing=0");
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tc->conf.relative = 0;
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tc->conf.smoothing = 0;
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}
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if (vsTransformDataInit(td, &tc->conf, &fi_src, &fi_dest) != VS_OK) {
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av_log(ctx, AV_LOG_ERROR, "initialization of vid.stab transform failed, please report a BUG\n");
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return AVERROR(EINVAL);
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}
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vsTransformGetConfig(&tc->conf, td);
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av_log(ctx, AV_LOG_INFO, "Video transformation/stabilization settings (pass 2/2):\n");
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av_log(ctx, AV_LOG_INFO, " input = %s\n", tc->input);
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av_log(ctx, AV_LOG_INFO, " smoothing = %d\n", tc->conf.smoothing);
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av_log(ctx, AV_LOG_INFO, " maxshift = %d\n", tc->conf.maxShift);
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av_log(ctx, AV_LOG_INFO, " maxangle = %f\n", tc->conf.maxAngle);
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av_log(ctx, AV_LOG_INFO, " crop = %s\n", tc->conf.crop ? "Black" : "Keep");
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av_log(ctx, AV_LOG_INFO, " relative = %s\n", tc->conf.relative ? "True": "False");
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av_log(ctx, AV_LOG_INFO, " invert = %s\n", tc->conf.invert ? "True" : "False");
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av_log(ctx, AV_LOG_INFO, " zoom = %f\n", tc->conf.zoom);
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av_log(ctx, AV_LOG_INFO, " optzoom = %s\n", tc->conf.optZoom ? "On" : "Off");
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av_log(ctx, AV_LOG_INFO, " interpol = %s\n", getInterpolationTypeName(tc->conf.interpolType));
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f = fopen(tc->input, "r");
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if (f == NULL) {
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av_log(ctx, AV_LOG_ERROR, "cannot open input file %s\n", tc->input);
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return AVERROR(errno);
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} else {
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VSManyLocalMotions mlms;
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if (vsReadLocalMotionsFile(f, &mlms) == VS_OK) {
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// calculate the actual transforms from the local motions
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if (vsLocalmotions2TransformsSimple(td, &mlms, &tc->trans) != VS_OK) {
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av_log(ctx, AV_LOG_ERROR, "calculating transformations failed\n");
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return AVERROR(EINVAL);
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}
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} else { // try to read old format
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if (!vsReadOldTransforms(td, f, &tc->trans)) { /* read input file */
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av_log(ctx, AV_LOG_ERROR, "error parsing input file %s\n", tc->input);
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return AVERROR(EINVAL);
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}
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}
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}
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fclose(f);
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if (vsPreprocessTransforms(td, &tc->trans) != VS_OK ) {
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av_log(ctx, AV_LOG_ERROR, "error while preprocessing transforms\n");
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return AVERROR(EINVAL);
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}
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// TODO: add sharpening, so far the user needs to call the unsharp filter manually
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return 0;
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}
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static int filter_frame(AVFilterLink *inlink, AVFrame *in)
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{
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AVFilterContext *ctx = inlink->dst;
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TransformContext *tc = ctx->priv;
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VSTransformData* td = &(tc->td);
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AVFilterLink *outlink = inlink->dst->outputs[0];
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int direct = 0;
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AVFrame *out;
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VSFrame inframe;
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int plane;
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if (av_frame_is_writable(in)) {
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direct = 1;
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out = in;
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} else {
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out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
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if (!out) {
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av_frame_free(&in);
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return AVERROR(ENOMEM);
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}
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av_frame_copy_props(out, in);
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}
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for (plane = 0; plane < vsTransformGetSrcFrameInfo(td)->planes; plane++) {
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inframe.data[plane] = in->data[plane];
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inframe.linesize[plane] = in->linesize[plane];
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}
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if (direct) {
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vsTransformPrepare(td, &inframe, &inframe);
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} else { // separate frames
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VSFrame outframe;
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for (plane = 0; plane < vsTransformGetDestFrameInfo(td)->planes; plane++) {
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outframe.data[plane] = out->data[plane];
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outframe.linesize[plane] = out->linesize[plane];
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}
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vsTransformPrepare(td, &inframe, &outframe);
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}
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vsDoTransform(td, vsGetNextTransform(td, &tc->trans));
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vsTransformFinish(td);
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if (!direct)
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av_frame_free(&in);
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return ff_filter_frame(outlink, out);
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}
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static const AVFilterPad avfilter_vf_vidstabtransform_inputs[] = {
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{
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.name = "default",
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.type = AVMEDIA_TYPE_VIDEO,
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.filter_frame = filter_frame,
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.config_props = config_input,
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},
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{ NULL }
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};
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static const AVFilterPad avfilter_vf_vidstabtransform_outputs[] = {
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{
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.name = "default",
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.type = AVMEDIA_TYPE_VIDEO,
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},
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{ NULL }
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};
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AVFilter avfilter_vf_vidstabtransform = {
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.name = "vidstabtransform",
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.description = NULL_IF_CONFIG_SMALL("Transform the frames, "
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"pass 2 of 2 for stabilization "
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"(see vidstabdetect for pass 1)."),
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.priv_size = sizeof(TransformContext),
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.init = init,
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.uninit = uninit,
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.query_formats = query_formats,
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.inputs = avfilter_vf_vidstabtransform_inputs,
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.outputs = avfilter_vf_vidstabtransform_outputs,
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.priv_class = &vidstabtransform_class,
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};
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