diff options
Diffstat (limited to 'libavfilter/vf_vidstabtransform.c')
-rw-r--r-- | libavfilter/vf_vidstabtransform.c | 319 |
1 files changed, 319 insertions, 0 deletions
diff --git a/libavfilter/vf_vidstabtransform.c b/libavfilter/vf_vidstabtransform.c new file mode 100644 index 0000000..80968ae --- /dev/null +++ b/libavfilter/vf_vidstabtransform.c @@ -0,0 +1,319 @@ +/* + * 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/opt.h" +#include "libavutil/imgutils.h" +#include "avfilter.h" +#include "internal.h" + +#include "vidstabutils.h" + +typedef struct { + 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_INT, {.i64 = 0}, 0, 1, FLAGS}, + {"debug", "enable debug mode and writer global motions information to file", OFFSET(debug), + AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, FLAGS}, + {NULL} +}; + +AVFILTER_DEFINE_CLASS(vidstabtransform); + +static av_cold int init(AVFilterContext *ctx) +{ + TransformContext *tc = ctx->priv; + vs_set_mem_and_log_functions(); + 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 query_formats(AVFilterContext *ctx) +{ + // If you add something here also add it in vidstabutils.c + static const enum AVPixelFormat 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_YUVA420P, + AV_PIX_FMT_YUV440P, AV_PIX_FMT_GRAY8, + AV_PIX_FMT_RGB24, AV_PIX_FMT_BGR24, AV_PIX_FMT_RGBA, + 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; + TransformContext *tc = ctx->priv; + FILE *f; + + const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format); + + VSTransformData *td = &(tc->td); + + VSFrameInfo fi_src; + VSFrameInfo fi_dest; + + if (!vsFrameInfoInit(&fi_src, inlink->w, inlink->h, + av_2_vs_pixel_format(ctx, inlink->format)) || + !vsFrameInfoInit(&fi_dest, inlink->w, inlink->h, + av_2_vs_pixel_format(ctx, inlink->format))) { + av_log(ctx, AV_LOG_ERROR, "unknown pixel format: %i (%s)", + inlink->format, desc->name); + return AVERROR(EINVAL); + } + + if (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 = fopen(tc->input, "r"); + if (f == NULL) { + av_log(ctx, AV_LOG_ERROR, "cannot open input file %s\n", tc->input); + return AVERROR(errno); + } 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, + }, + { NULL } +}; + +static const AVFilterPad avfilter_vf_vidstabtransform_outputs[] = { + { + .name = "default", + .type = AVMEDIA_TYPE_VIDEO, + }, + { NULL } +}; + +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, + .query_formats = query_formats, + .inputs = avfilter_vf_vidstabtransform_inputs, + .outputs = avfilter_vf_vidstabtransform_outputs, + .priv_class = &vidstabtransform_class, +}; |