/* * Copyright (c) 2013 Georg Martius <georg dot martius at web dot de> * * 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 */ #define DEFAULT_INPUT_NAME "transforms.trf" #include <vid.stab/libvidstab.h> #include "libavutil/common.h" #include "libavutil/file_open.h" #include "libavutil/opt.h" #include "libavutil/pixdesc.h" #include "avfilter.h" #include "internal.h" #include "video.h" #include "vidstabutils.h" typedef struct TransformContext { const AVClass *class; VSTransformData td; VSTransformConfig conf; VSTransformations trans; // transformations char *input; // name of transform file int tripod; int debug; } TransformContext; #define OFFSET(x) offsetof(TransformContext, x) #define OFFSETC(x) (offsetof(TransformContext, conf)+offsetof(VSTransformConfig, x)) #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM static const AVOption vidstabtransform_options[] = { {"input", "set path to the file storing the transforms", OFFSET(input), AV_OPT_TYPE_STRING, {.str = DEFAULT_INPUT_NAME}, .flags = FLAGS }, {"smoothing", "set number of frames*2 + 1 used for lowpass filtering", OFFSETC(smoothing), AV_OPT_TYPE_INT, {.i64 = 15}, 0, 1000, FLAGS}, {"optalgo", "set camera path optimization algo", OFFSETC(camPathAlgo), AV_OPT_TYPE_INT, {.i64 = VSOptimalL1}, VSOptimalL1, VSAvg, FLAGS, "optalgo"}, { "opt", "global optimization", 0, // from version 1.0 on AV_OPT_TYPE_CONST, {.i64 = VSOptimalL1 }, 0, 0, FLAGS, "optalgo"}, { "gauss", "gaussian kernel", 0, AV_OPT_TYPE_CONST, {.i64 = VSGaussian }, 0, 0, FLAGS, "optalgo"}, { "avg", "simple averaging on motion", 0, AV_OPT_TYPE_CONST, {.i64 = VSAvg }, 0, 0, FLAGS, "optalgo"}, {"maxshift", "set maximal number of pixels to translate image", OFFSETC(maxShift), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 500, FLAGS}, {"maxangle", "set maximal angle in rad to rotate image", OFFSETC(maxAngle), AV_OPT_TYPE_DOUBLE, {.dbl = -1.0}, -1.0, 3.14, FLAGS}, {"crop", "set cropping mode", OFFSETC(crop), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, FLAGS, "crop"}, { "keep", "keep border", 0, AV_OPT_TYPE_CONST, {.i64 = VSKeepBorder }, 0, 0, FLAGS, "crop"}, { "black", "black border", 0, AV_OPT_TYPE_CONST, {.i64 = VSCropBorder }, 0, 0, FLAGS, "crop"}, {"invert", "invert transforms", OFFSETC(invert), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, FLAGS}, {"relative", "consider transforms as relative", OFFSETC(relative), AV_OPT_TYPE_INT, {.i64 = 1}, 0, 1, FLAGS}, {"zoom", "set percentage to zoom (>0: zoom in, <0: zoom out", OFFSETC(zoom), AV_OPT_TYPE_DOUBLE, {.dbl = 0}, -100, 100, FLAGS}, {"optzoom", "set optimal zoom (0: nothing, 1: optimal static zoom, 2: optimal dynamic zoom)", OFFSETC(optZoom), AV_OPT_TYPE_INT, {.i64 = 1}, 0, 2, FLAGS}, {"zoomspeed", "for adative zoom: percent to zoom maximally each frame", OFFSETC(zoomSpeed), AV_OPT_TYPE_DOUBLE, {.dbl = 0.25}, 0, 5, FLAGS}, {"interpol", "set type of interpolation", OFFSETC(interpolType), AV_OPT_TYPE_INT, {.i64 = 2}, 0, 3, FLAGS, "interpol"}, { "no", "no interpolation", 0, AV_OPT_TYPE_CONST, {.i64 = VS_Zero }, 0, 0, FLAGS, "interpol"}, { "linear", "linear (horizontal)", 0, AV_OPT_TYPE_CONST, {.i64 = VS_Linear }, 0, 0, FLAGS, "interpol"}, { "bilinear","bi-linear", 0, AV_OPT_TYPE_CONST, {.i64 = VS_BiLinear},0, 0, FLAGS, "interpol"}, { "bicubic", "bi-cubic", 0, AV_OPT_TYPE_CONST, {.i64 = VS_BiCubic },0, 0, FLAGS, "interpol"}, {"tripod", "enable virtual tripod mode (same as relative=0:smoothing=0)", OFFSET(tripod), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, FLAGS}, {"debug", "enable debug mode and writer global motions information to file", OFFSET(debug), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, FLAGS}, {NULL} }; AVFILTER_DEFINE_CLASS(vidstabtransform); static av_cold int init(AVFilterContext *ctx) { TransformContext *tc = ctx->priv; ff_vs_init(); tc->class = &vidstabtransform_class; av_log(ctx, AV_LOG_VERBOSE, "vidstabtransform filter: init %s\n", LIBVIDSTAB_VERSION); return 0; } static av_cold void uninit(AVFilterContext *ctx) { TransformContext *tc = ctx->priv; vsTransformDataCleanup(&tc->td); vsTransformationsCleanup(&tc->trans); } static int config_input(AVFilterLink *inlink) { AVFilterContext *ctx = inlink->dst; TransformContext *tc = ctx->priv; FILE *f; const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format); int is_planar = desc->flags & AV_PIX_FMT_FLAG_PLANAR; VSTransformData *td = &(tc->td); VSFrameInfo fi_src; VSFrameInfo fi_dest; if (!vsFrameInfoInit(&fi_src, inlink->w, inlink->h, ff_av2vs_pixfmt(ctx, inlink->format)) || !vsFrameInfoInit(&fi_dest, inlink->w, inlink->h, ff_av2vs_pixfmt(ctx, inlink->format))) { av_log(ctx, AV_LOG_ERROR, "unknown pixel format: %i (%s)", inlink->format, desc->name); return AVERROR(EINVAL); } if ((!is_planar && fi_src.bytesPerPixel != av_get_bits_per_pixel(desc)/8) || fi_src.log2ChromaW != desc->log2_chroma_w || fi_src.log2ChromaH != desc->log2_chroma_h) { av_log(ctx, AV_LOG_ERROR, "pixel-format error: bpp %i<>%i ", fi_src.bytesPerPixel, av_get_bits_per_pixel(desc)/8); av_log(ctx, AV_LOG_ERROR, "chroma_subsampl: w: %i<>%i h: %i<>%i\n", fi_src.log2ChromaW, desc->log2_chroma_w, fi_src.log2ChromaH, desc->log2_chroma_h); return AVERROR(EINVAL); } // set values that are not initializes by the options tc->conf.modName = "vidstabtransform"; tc->conf.verbose = 1 + tc->debug; if (tc->tripod) { av_log(ctx, AV_LOG_INFO, "Virtual tripod mode: relative=0, smoothing=0\n"); tc->conf.relative = 0; tc->conf.smoothing = 0; } tc->conf.simpleMotionCalculation = 0; tc->conf.storeTransforms = tc->debug; tc->conf.smoothZoom = 0; if (vsTransformDataInit(td, &tc->conf, &fi_src, &fi_dest) != VS_OK) { av_log(ctx, AV_LOG_ERROR, "initialization of vid.stab transform failed, please report a BUG\n"); return AVERROR(EINVAL); } vsTransformGetConfig(&tc->conf, td); av_log(ctx, AV_LOG_INFO, "Video transformation/stabilization settings (pass 2/2):\n"); av_log(ctx, AV_LOG_INFO, " input = %s\n", tc->input); av_log(ctx, AV_LOG_INFO, " smoothing = %d\n", tc->conf.smoothing); av_log(ctx, AV_LOG_INFO, " optalgo = %s\n", tc->conf.camPathAlgo == VSOptimalL1 ? "opt" : (tc->conf.camPathAlgo == VSGaussian ? "gauss" : "avg")); av_log(ctx, AV_LOG_INFO, " maxshift = %d\n", tc->conf.maxShift); av_log(ctx, AV_LOG_INFO, " maxangle = %f\n", tc->conf.maxAngle); av_log(ctx, AV_LOG_INFO, " crop = %s\n", tc->conf.crop ? "Black" : "Keep"); av_log(ctx, AV_LOG_INFO, " relative = %s\n", tc->conf.relative ? "True": "False"); av_log(ctx, AV_LOG_INFO, " invert = %s\n", tc->conf.invert ? "True" : "False"); av_log(ctx, AV_LOG_INFO, " zoom = %f\n", tc->conf.zoom); av_log(ctx, AV_LOG_INFO, " optzoom = %s\n", tc->conf.optZoom == 1 ? "Static (1)" : (tc->conf.optZoom == 2 ? "Dynamic (2)" : "Off (0)")); if (tc->conf.optZoom == 2) av_log(ctx, AV_LOG_INFO, " zoomspeed = %g\n", tc->conf.zoomSpeed); av_log(ctx, AV_LOG_INFO, " interpol = %s\n", getInterpolationTypeName(tc->conf.interpolType)); f = avpriv_fopen_utf8(tc->input, "rb"); if (!f) { int ret = AVERROR(errno); av_log(ctx, AV_LOG_ERROR, "cannot open input file %s\n", tc->input); return ret; } else { VSManyLocalMotions mlms; if (vsReadLocalMotionsFile(f, &mlms) == VS_OK) { // calculate the actual transforms from the local motions if (vsLocalmotions2Transforms(td, &mlms, &tc->trans) != VS_OK) { av_log(ctx, AV_LOG_ERROR, "calculating transformations failed\n"); return AVERROR(EINVAL); } } else { // try to read old format if (!vsReadOldTransforms(td, f, &tc->trans)) { /* read input file */ av_log(ctx, AV_LOG_ERROR, "error parsing input file %s\n", tc->input); return AVERROR(EINVAL); } } } fclose(f); if (vsPreprocessTransforms(td, &tc->trans) != VS_OK) { av_log(ctx, AV_LOG_ERROR, "error while preprocessing transforms\n"); return AVERROR(EINVAL); } // TODO: add sharpening, so far the user needs to call the unsharp filter manually return 0; } static int filter_frame(AVFilterLink *inlink, AVFrame *in) { AVFilterContext *ctx = inlink->dst; TransformContext *tc = ctx->priv; VSTransformData* td = &(tc->td); AVFilterLink *outlink = inlink->dst->outputs[0]; int direct = 0; AVFrame *out; VSFrame inframe; int plane; if (av_frame_is_writable(in)) { direct = 1; out = in; } else { out = ff_get_video_buffer(outlink, outlink->w, outlink->h); if (!out) { av_frame_free(&in); return AVERROR(ENOMEM); } av_frame_copy_props(out, in); } for (plane = 0; plane < vsTransformGetSrcFrameInfo(td)->planes; plane++) { inframe.data[plane] = in->data[plane]; inframe.linesize[plane] = in->linesize[plane]; } if (direct) { vsTransformPrepare(td, &inframe, &inframe); } else { // separate frames VSFrame outframe; for (plane = 0; plane < vsTransformGetDestFrameInfo(td)->planes; plane++) { outframe.data[plane] = out->data[plane]; outframe.linesize[plane] = out->linesize[plane]; } vsTransformPrepare(td, &inframe, &outframe); } vsDoTransform(td, vsGetNextTransform(td, &tc->trans)); vsTransformFinish(td); if (!direct) av_frame_free(&in); return ff_filter_frame(outlink, out); } static const AVFilterPad avfilter_vf_vidstabtransform_inputs[] = { { .name = "default", .type = AVMEDIA_TYPE_VIDEO, .filter_frame = filter_frame, .config_props = config_input, }, }; const AVFilter ff_vf_vidstabtransform = { .name = "vidstabtransform", .description = NULL_IF_CONFIG_SMALL("Transform the frames, " "pass 2 of 2 for stabilization " "(see vidstabdetect for pass 1)."), .priv_size = sizeof(TransformContext), .init = init, .uninit = uninit, FILTER_INPUTS(avfilter_vf_vidstabtransform_inputs), FILTER_OUTPUTS(ff_video_default_filterpad), FILTER_PIXFMTS_ARRAY(ff_vidstab_pix_fmts), .priv_class = &vidstabtransform_class, };