[FFmpeg-cvslog] lavfi: add video stabilization plugins using vid.stab library
Georg Martius
git at videolan.org
Wed Apr 24 18:47:54 CEST 2013
ffmpeg | branch: master | Georg Martius <martius at mis.mpg.de> | Fri Apr 19 01:49:27 2013 +0200| [4364e1f150971c3023db7981c01193b36c8f5b17] | committer: Clément Bœsch
lavfi: add video stabilization plugins using vid.stab library
vidstabdetect and vidstabtransform common functions for interfacing
vid.stab are in libavfilter/vidstabutils.c
Signed-off-by: Georg Martius <martius at mis.mpg.de>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=4364e1f150971c3023db7981c01193b36c8f5b17
---
Changelog | 2 +
LICENSE | 1 +
configure | 6 +
doc/filters.texi | 222 ++++++++++++++++++++++++++++
libavfilter/Makefile | 2 +
libavfilter/allfilters.c | 2 +
libavfilter/vf_vidstabdetect.c | 239 ++++++++++++++++++++++++++++++
libavfilter/vf_vidstabtransform.c | 294 +++++++++++++++++++++++++++++++++++++
libavfilter/vidstabutils.c | 84 +++++++++++
libavfilter/vidstabutils.h | 36 +++++
10 files changed, 888 insertions(+)
diff --git a/Changelog b/Changelog
index 3e8293f..f71e0d8 100644
--- a/Changelog
+++ b/Changelog
@@ -31,6 +31,8 @@ version <next>:
- asetrate filter
- interleave filter
- timeline editing with filters
+- vidstabdetect and vidstabtransform filters for video stabilization using
+ the vid.stab library
version 1.2:
diff --git a/LICENSE b/LICENSE
index 2d91bc0..8760753 100644
--- a/LICENSE
+++ b/LICENSE
@@ -72,6 +72,7 @@ compatible libraries
The following libraries are under GPL:
- libcdio
- libutvideo
+ - libvidstab
- libx264
- libxavs
- libxvid
diff --git a/configure b/configure
index e5f47b0..648db2f 100755
--- a/configure
+++ b/configure
@@ -226,6 +226,7 @@ External library support:
--enable-libtwolame enable MP2 encoding via libtwolame [no]
--enable-libutvideo enable Ut Video encoding and decoding via libutvideo [no]
--enable-libv4l2 enable libv4l2/v4l-utils [no]
+ --enable-libvidstab enable video stabilization using vid.stab [no]
--enable-libvo-aacenc enable AAC encoding via libvo-aacenc [no]
--enable-libvo-amrwbenc enable AMR-WB encoding via libvo-amrwbenc [no]
--enable-libvorbis enable Vorbis en/decoding via libvorbis,
@@ -1181,6 +1182,7 @@ EXTERNAL_LIBRARY_LIST="
libtwolame
libutvideo
libv4l2
+ libvidstab
libvo_aacenc
libvo_amrwbenc
libvorbis
@@ -2152,6 +2154,8 @@ stereo3d_filter_deps="gpl"
subtitles_filter_deps="avformat avcodec libass"
super2xsai_filter_deps="gpl"
tinterlace_filter_deps="gpl"
+vidstabdetect_filter_deps="libvidstab"
+vidstabtransform_filter_deps="libvidstab"
yadif_filter_deps="gpl"
pixfmts_super2xsai_test_deps="super2xsai_filter"
tinterlace_merge_test_deps="tinterlace_filter"
@@ -3573,6 +3577,7 @@ die_license_disabled_gpl() {
die_license_disabled gpl libcdio
die_license_disabled gpl libutvideo
+die_license_disabled gpl libvidstab
die_license_disabled gpl libx264
die_license_disabled gpl libxavs
die_license_disabled gpl libxvid
@@ -4015,6 +4020,7 @@ enabled libtwolame && require libtwolame twolame.h twolame_init -ltwolame &&
die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
enabled libutvideo && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
enabled libv4l2 && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
+enabled libvidstab && require_pkg_config vidstab vid.stab/libvidstab.h vsMotionDetectInit
enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
diff --git a/doc/filters.texi b/doc/filters.texi
index 81cdb05..ab9e227 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -5308,6 +5308,141 @@ much, but it will increase the amount of blurring needed to cover over
the image and will destroy more information than necessary, and extra
pixels will slow things down on a large logo.
+ at anchor{vidstabtransform}
+ at section vidstabtransform
+
+Video stabilization/deshaking: pass 2 of 2,
+see @ref{vidstabdetect} for pass 1.
+
+Read a file with transform information for each frame and
+apply/compensate them. Together with the @ref{vidstabdetect}
+filter this can be used to deshake videos. See also
+ at url{http://public.hronopik.de/vid.stab}. It is important to also use
+the unsharp filter, see below.
+
+To enable compilation of this filter you need to configure FFmpeg with
+ at code{--enable-libvidstab}.
+
+This filter accepts the following named options, expressed as a
+sequence of @var{key}=@var{value} pairs, separated by ":".
+
+ at table @option
+
+ at item input
+path to the file used to read the transforms (default: @file{transforms.trf})
+
+ at item smoothing
+number of frames (value*2 + 1) used for lowpass filtering the camera movements
+(default: 10). For example a number of 10 means that 21 frames are used
+(10 in the past and 10 in the future) to smoothen the motion in the
+video. A larger values leads to a smoother video, but limits the
+acceleration of the camera (pan/tilt movements).
+
+ at item maxshift
+maximal number of pixels to translate frames (default: -1 no limit)
+
+ at item maxangle
+maximal angle in radians (degree*PI/180) to rotate frames (default: -1
+no limit)
+
+ at item crop
+How to deal with borders that may be visible due to movement
+compensation. Available values are:
+
+ at table @samp
+ at item keep
+keep image information from previous frame (default)
+ at item black
+fill the border black
+ at end table
+
+ at item invert
+ at table @samp
+ at item 0
+ keep transforms normal (default)
+ at item 1
+ invert transforms
+ at end table
+
+
+ at item relative
+consider transforms as
+ at table @samp
+ at item 0
+ absolute
+ at item 1
+ relative to previous frame (default)
+ at end table
+
+
+ at item zoom
+percentage to zoom (default: 0)
+ at table @samp
+ at item >0
+ zoom in
+ at item <0
+ zoom out
+ at end table
+
+ at item optzoom
+if 1 then optimal zoom value is determined (default).
+Optimal zoom means no (or only little) border should be visible.
+Note that the value given at zoom is added to the one calculated
+here.
+
+ at item interpol
+type of interpolation
+
+Available values are:
+ at table @samp
+ at item no
+no interpolation
+ at item linear
+linear only horizontal
+ at item bilinear
+linear in both directions (default)
+ at item bicubic
+cubic in both directions (slow)
+ at end table
+
+ at item tripod
+virtual tripod mode means that the video is stabilized such that the
+camera stays stationary. Use also @code{tripod} option of
+ at ref{vidstabdetect}.
+ at table @samp
+ at item 0
+off (default)
+ at item 1
+virtual tripod mode: equivalent to @code{relative=0:smoothing=0}
+ at end table
+
+ at end table
+
+ at subsection Examples
+
+ at itemize
+ at item
+typical call with default default values:
+ (note the unsharp filter which is always recommended)
+ at example
+ffmpeg -i inp.mpeg -vf vidstabtransform,unsharp=5:5:0.8:3:3:0.4 inp_stabilized.mpeg
+ at end example
+
+ at item
+zoom in a bit more and load transform data from a given file
+ at example
+vidstabtransform=zoom=5:input="mytransforms.trf"
+ at end example
+
+ at item
+smoothen the video even more
+ at example
+vidstabtransform=smoothing=30
+ at end example
+
+ at end itemize
+
+
@section scale
Scale (resize) the input video, using the libswscale library.
@@ -5706,6 +5841,93 @@ in [-30,0] will filter edges. Default value is 0.
If a chroma option is not explicitly set, the corresponding luma value
is set.
+ at anchor{vidstabdetect}
+ at section vidstabdetect
+
+Video stabilization/deshaking: pass 1 of 2, see @ref{vidstabtransform}
+for pass 2.
+
+Generates a file with relative transform information translation,
+rotation about subsequent frames.
+
+To enable compilation of this filter you need to configure FFmpeg with
+ at code{--enable-libvidstab}.
+
+This filter accepts the following named options, expressed as a
+sequence of @var{key}=@var{value} pairs, separated by ":".
+
+ at table @option
+ at item result
+path to the file used to write the transforms (default:@file{transforms.trf})
+
+ at item shakiness
+how shaky is the video and how quick is the camera? (default: 5)
+ at table @samp
+ at item 1
+ little (fast)
+ at item ...
+ at item 10
+ very strong/quick (slow)
+ at end table
+
+ at item accuracy
+accuracy of detection process (>=shakiness) (default: 9)
+ at table @samp
+ at item 1
+ low (fast)
+ at item 15
+ high (slow)
+ at end table
+
+ at item stepsize
+stepsize of search process, region around minimum is scanned with 1 pixel
+resolution (default: 6)
+
+ at item mincontrast
+below this contrast a local measurement field is discarded (0-1) (default: 0.3)
+
+ at item tripod
+virtual tripod mode: @code{tripod=framenum} if framenum>0 otherwise disabled.
+The motion of the frames is compared to a reference frame (framenum).
+The idea is to compensate all movements in a more-or-less static scene
+ and keep the camera view absolutely still.
+(default: 0 (disabled))
+
+ at item show
+draw nothing (default); 1,2: show fields and transforms in the resulting frames
+
+ at end table
+
+ at subsection Examples
+
+ at itemize
+ at item
+use default values:
+ at example
+vidstabdetect
+ at end example
+
+ at item
+strongly shaky movie and put the results in @code{mytransforms.trf}
+ at example
+vidstabdetect=shakiness=10:accuracy=15:result="mytransforms.trf"
+ at end example
+
+ at item
+visualize some internals in the resulting video
+ at example
+vidstabdetect=show=1
+ at end example
+
+
+ at item
+Typical call with visualization
+ at example
+ffmpeg -i input -vf vidstabdetect=shakiness=5:show=1 dummy.avi
+ at end example
+ at end itemize
+
+
@section stereo3d
Convert between different stereoscopic image formats.
diff --git a/libavfilter/Makefile b/libavfilter/Makefile
index 400eae7..133e036 100644
--- a/libavfilter/Makefile
+++ b/libavfilter/Makefile
@@ -179,6 +179,8 @@ OBJS-$(CONFIG_TINTERLACE_FILTER) += vf_tinterlace.o
OBJS-$(CONFIG_TRANSPOSE_FILTER) += vf_transpose.o
OBJS-$(CONFIG_UNSHARP_FILTER) += vf_unsharp.o
OBJS-$(CONFIG_VFLIP_FILTER) += vf_vflip.o
+OBJS-$(CONFIG_VIDSTABDETECT_FILTER) += vidstabutils.o vf_vidstabdetect.o
+OBJS-$(CONFIG_VIDSTABTRANSFORM_FILTER) += vidstabutils.o vf_vidstabtransform.o
OBJS-$(CONFIG_YADIF_FILTER) += vf_yadif.o
OBJS-$(CONFIG_CELLAUTO_FILTER) += vsrc_cellauto.o
diff --git a/libavfilter/allfilters.c b/libavfilter/allfilters.c
index 3e2d62c..2fc8b48 100644
--- a/libavfilter/allfilters.c
+++ b/libavfilter/allfilters.c
@@ -176,6 +176,8 @@ void avfilter_register_all(void)
REGISTER_FILTER(TRANSPOSE, transpose, vf);
REGISTER_FILTER(UNSHARP, unsharp, vf);
REGISTER_FILTER(VFLIP, vflip, vf);
+ REGISTER_FILTER(VIDSTABDETECT, vidstabdetect, vf);
+ REGISTER_FILTER(VIDSTABTRANSFORM, vidstabtransform, vf);
REGISTER_FILTER(YADIF, yadif, vf);
REGISTER_FILTER(CELLAUTO, cellauto, vsrc);
diff --git a/libavfilter/vf_vidstabdetect.c b/libavfilter/vf_vidstabdetect.c
new file mode 100644
index 0000000..145d7f9
--- /dev/null
+++ b/libavfilter/vf_vidstabdetect.c
@@ -0,0 +1,239 @@
+/*
+ * 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_RESULT_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;
+
+ VSMotionDetect md;
+ VSMotionDetectConfig conf;
+
+ char* result;
+ FILE* f;
+} StabData;
+
+
+#define OFFSET(x) offsetof(StabData, x)
+#define OFFSETC(x) (offsetof(StabData, conf)+offsetof(VSMotionDetectConfig, x))
+#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
+
+static const AVOption vidstabdetect_options[]= {
+ {"result", "path to the file used to write the transforms (def:transforms.trf)", OFFSET(result), AV_OPT_TYPE_STRING, {.str = DEFAULT_RESULT_NAME}},
+ {"shakiness", "how shaky is the video and how quick is the camera?"
+ " 1: little (fast) 10: very strong/quick (slow) (def: 5)", OFFSETC(shakiness), AV_OPT_TYPE_INT, {.i64 = 5}, 1, 10, FLAGS},
+ {"accuracy", "(>=shakiness) 1: low 15: high (slow) (def: 9)", OFFSETC(accuracy), AV_OPT_TYPE_INT, {.i64 = 9 }, 1, 15, FLAGS},
+ {"stepsize", "region around minimum is scanned with 1 pixel resolution (def: 6)", OFFSETC(stepSize), AV_OPT_TYPE_INT, {.i64 = 6}, 1, 32, FLAGS},
+ {"mincontrast", "below this contrast a field is discarded (0-1) (def: 0.3)", OFFSETC(contrastThreshold), AV_OPT_TYPE_DOUBLE, {.dbl = 0.25}, 0.0, 1.0, FLAGS},
+ {"show", "0: draw nothing (def); 1,2: show fields and transforms", OFFSETC(show), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 2, FLAGS},
+ {"tripod", "virtual tripod mode (if >0): motion is compared to a reference"
+ " reference frame (frame # is the value) (def: 0)", OFFSETC(virtualTripod), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, FLAGS},
+ {NULL},
+};
+
+AVFILTER_DEFINE_CLASS(vidstabdetect);
+
+static av_cold int init(AVFilterContext *ctx)
+{
+ StabData* sd = ctx->priv;
+ vs_set_mem_and_log_functions();
+ sd->class = &vidstabdetect_class;
+ av_log(ctx, AV_LOG_VERBOSE, "vidstabdetect filter: init %s\n", LIBVIDSTAB_VERSION);
+ return 0;
+}
+
+static av_cold void uninit(AVFilterContext *ctx)
+{
+ StabData *sd = ctx->priv;
+ VSMotionDetect* md = &(sd->md);
+
+ if (sd->f) {
+ fclose(sd->f);
+ sd->f = NULL;
+ }
+
+ vsMotionDetectionCleanup(md);
+
+}
+
+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;
+ StabData *sd = ctx->priv;
+
+ VSMotionDetect* md = &(sd->md);
+ VSFrameInfo fi;
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
+
+ vsFrameInfoInit(&fi,inlink->w, inlink->h, av_2_vs_pixel_format(ctx, inlink->format));
+ if(fi.bytesPerPixel != av_get_bits_per_pixel(desc)/8){
+ av_log(ctx, AV_LOG_ERROR, "pixel-format error: wrong bits/per/pixel, please report a BUG");
+ return AVERROR(EINVAL);
+ }
+ if(fi.log2ChromaW != desc->log2_chroma_w){
+ av_log(ctx, AV_LOG_ERROR, "pixel-format error: log2_chroma_w, please report a BUG");
+ return AVERROR(EINVAL);
+ }
+
+ if(fi.log2ChromaH != desc->log2_chroma_h){
+ av_log(ctx, AV_LOG_ERROR, "pixel-format error: log2_chroma_h, please report a BUG");
+ return AVERROR(EINVAL);
+ }
+
+ // set values that are not initializes by the options
+ sd->conf.algo = 1;
+ sd->conf.modName = "vidstabdetect";
+ if(vsMotionDetectInit(md, &sd->conf, &fi) != VS_OK){
+ av_log(ctx, AV_LOG_ERROR, "initialization of Motion Detection failed, please report a BUG");
+ return AVERROR(EINVAL);
+ }
+
+ vsMotionDetectGetConfig(&sd->conf, md);
+ av_log(ctx, AV_LOG_INFO, "Video stabilization settings (pass 1/2):\n");
+ av_log(ctx, AV_LOG_INFO, " shakiness = %d\n", sd->conf.shakiness);
+ av_log(ctx, AV_LOG_INFO, " accuracy = %d\n", sd->conf.accuracy);
+ av_log(ctx, AV_LOG_INFO, " stepsize = %d\n", sd->conf.stepSize);
+ av_log(ctx, AV_LOG_INFO, " mincontrast = %f\n", sd->conf.contrastThreshold);
+ av_log(ctx, AV_LOG_INFO, " show = %d\n", sd->conf.show);
+ av_log(ctx, AV_LOG_INFO, " result = %s\n", sd->result);
+
+ sd->f = fopen(sd->result, "w");
+ if (sd->f == NULL) {
+ av_log(ctx, AV_LOG_ERROR, "cannot open transform file %s\n", sd->result);
+ return AVERROR(EINVAL);
+ }else{
+ if(vsPrepareFile(md, sd->f) != VS_OK){
+ av_log(ctx, AV_LOG_ERROR, "cannot write to transform file %s\n", sd->result);
+ return AVERROR(EINVAL);
+ }
+ }
+ return 0;
+}
+
+
+static int filter_frame(AVFilterLink *inlink, AVFrame *in)
+{
+ AVFilterContext *ctx = inlink->dst;
+ StabData *sd = ctx->priv;
+ VSMotionDetect* md = &(sd->md);
+ LocalMotions localmotions;
+
+ AVFilterLink *outlink = inlink->dst->outputs[0];
+ int direct = 0;
+ AVFrame *out;
+ VSFrame frame;
+ 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 < md->fi.planes; plane++){
+ frame.data[plane] = in->data[plane];
+ frame.linesize[plane] = in->linesize[plane];
+ }
+ if(vsMotionDetection(md, &localmotions, &frame) != VS_OK){
+ av_log(ctx, AV_LOG_ERROR, "motion detection failed");
+ return AVERROR(AVERROR_EXTERNAL);
+ } else {
+ if(vsWriteToFile(md, sd->f, &localmotions) != VS_OK){
+ av_log(ctx, AV_LOG_ERROR, "cannot write to transform file");
+ return AVERROR(errno);
+ }
+ vs_vector_del(&localmotions);
+ }
+ if(sd->conf.show>0 && !direct){
+ av_image_copy(out->data, out->linesize,
+ (void*)in->data, in->linesize,
+ in->format, in->width, in->height);
+ }
+
+ if (!direct)
+ av_frame_free(&in);
+
+ return ff_filter_frame(outlink, out);
+}
+
+static const AVFilterPad avfilter_vf_vidstabdetect_inputs[] = {
+ {
+ .name = "default",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .filter_frame = filter_frame,
+ .config_props = config_input,
+ },
+ { NULL }
+};
+
+static const AVFilterPad avfilter_vf_vidstabdetect_outputs[] = {
+ {
+ .name = "default",
+ .type = AVMEDIA_TYPE_VIDEO,
+ },
+ { NULL }
+};
+
+AVFilter avfilter_vf_vidstabdetect = {
+ .name = "vidstabdetect",
+ .description = NULL_IF_CONFIG_SMALL("pass 1 of 2 for stabilization"
+ "extracts relative transformations"
+ "(pass 2 see vidstabtransform)"),
+ .priv_size = sizeof(StabData),
+ .init = init,
+ .uninit = uninit,
+ .query_formats = query_formats,
+
+ .inputs = avfilter_vf_vidstabdetect_inputs,
+ .outputs = avfilter_vf_vidstabdetect_outputs,
+ .priv_class = &vidstabdetect_class,
+};
diff --git a/libavfilter/vf_vidstabtransform.c b/libavfilter/vf_vidstabtransform.c
new file mode 100644
index 0000000..f40093a
--- /dev/null
+++ b/libavfilter/vf_vidstabtransform.c
@@ -0,0 +1,294 @@
+/*
+ * 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;
+} 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", "path to the file storing the transforms (def:transforms.trf)", OFFSET(input),
+ AV_OPT_TYPE_STRING, {.str = DEFAULT_INPUT_NAME} },
+ {"smoothing", "number of frames*2 + 1 used for lowpass filtering (def: 10)", OFFSETC(smoothing),
+ AV_OPT_TYPE_INT, {.i64 = 10}, 1, 1000, FLAGS},
+ {"maxshift", "maximal number of pixels to translate image (def: -1 no limit)", OFFSETC(maxShift),
+ AV_OPT_TYPE_INT, {.i64 = -1}, -1, 500, FLAGS},
+ {"maxangle", "maximal angle in rad to rotate image (def: -1 no limit)", OFFSETC(maxAngle),
+ AV_OPT_TYPE_DOUBLE, {.dbl = -1.0}, -1.0, 3.14, FLAGS},
+ {"crop", "keep: (def), black", 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", "1: invert transforms (def: 0)", OFFSETC(invert),
+ AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, FLAGS},
+ {"relative", "consider transforms as 0: abslute, 1: relative (def)", OFFSETC(relative),
+ AV_OPT_TYPE_INT, {.i64 = 1}, 0, 1, FLAGS},
+ {"zoom", "percentage to zoom >0: zoom in, <0 zoom out (def: 0)", OFFSETC(zoom),
+ AV_OPT_TYPE_DOUBLE, {.dbl = 0}, 0, 100, FLAGS},
+ {"optzoom", "0: nothing, 1: determine optimal zoom (def) (added to 'zoom')", OFFSETC(optZoom),
+ AV_OPT_TYPE_INT, {.i64 = 1}, 0, 1, FLAGS},
+ {"interpol", "type of interpolation, no, linear, bilinear (def) , bicubic", 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", "if 1: virtual tripod mode (equiv. to relative=0:smoothing=0)", OFFSET(tripod),
+ 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;
+ if(tc->tripod){
+ av_log(ctx, AV_LOG_INFO, "Virtual tripod mode: relative=0, smoothing=0");
+ tc->conf.relative=0;
+ tc->conf.smoothing=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, " 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 ? "On" : "Off");
+ 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 localmotions
+ if(vsLocalmotions2TransformsSimple(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(out == in){ // inplace
+ vsTransformPrepare(td, &inframe, &inframe);
+ }else{ // seperate 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 avfilter_vf_vidstabtransform = {
+ .name = "vidstabtransform",
+ .description = NULL_IF_CONFIG_SMALL("pass 2 of stabilization"
+ "transforms the frames"
+ "(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,
+
+};
+
diff --git a/libavfilter/vidstabutils.c b/libavfilter/vidstabutils.c
new file mode 100644
index 0000000..60c8eed
--- /dev/null
+++ b/libavfilter/vidstabutils.c
@@ -0,0 +1,84 @@
+/*
+ * 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
+ */
+
+#include "vidstabutils.h"
+
+
+/** convert AV's pixelformat to vid.stab pixelformat */
+VSPixelFormat av_2_vs_pixel_format(AVFilterContext *ctx, enum AVPixelFormat pf){
+ switch(pf){
+ case AV_PIX_FMT_YUV420P: return PF_YUV420P;
+ case AV_PIX_FMT_YUV422P: return PF_YUV422P;
+ case AV_PIX_FMT_YUV444P: return PF_YUV444P;
+ case AV_PIX_FMT_YUV410P: return PF_YUV410P;
+ case AV_PIX_FMT_YUV411P: return PF_YUV411P;
+ case AV_PIX_FMT_YUV440P: return PF_YUV440P;
+ case AV_PIX_FMT_YUVA420P: return PF_YUVA420P;
+ case AV_PIX_FMT_GRAY8: return PF_GRAY8;
+ case AV_PIX_FMT_RGB24: return PF_RGB24;
+ case AV_PIX_FMT_BGR24: return PF_BGR24;
+ case AV_PIX_FMT_RGBA: return PF_RGBA;
+ default:
+ av_log(ctx, AV_LOG_ERROR, "cannot deal with pixel format %i\n", pf);
+ return PF_NONE;
+ }
+}
+
+
+/** struct to hold a valid context for logging from within vid.stab lib */
+typedef struct {
+ const AVClass* class;
+} VS2AVLogCtx;
+
+/** wrapper to log vs_log into av_log */
+static int vs_2_av_log_wrapper(int type, const char* tag, const char* format, ...){
+ va_list ap;
+ VS2AVLogCtx ctx;
+ AVClass class = {
+ .class_name = tag,
+ .item_name = av_default_item_name,
+ .option = 0,
+ .version = LIBAVUTIL_VERSION_INT,
+ .category = AV_CLASS_CATEGORY_FILTER,
+ };
+ ctx.class = &class;
+ va_start (ap, format);
+ av_vlog(&ctx, type, format, ap);
+ va_end (ap);
+ return VS_OK;
+}
+
+/** sets the memory allocation function and logging constants to av versions */
+void vs_set_mem_and_log_functions(void){
+ vs_malloc = av_malloc;
+ vs_zalloc = av_mallocz;
+ vs_realloc = av_realloc;
+ vs_free = av_free;
+
+ VS_ERROR_TYPE = AV_LOG_ERROR;
+ VS_WARN_TYPE = AV_LOG_WARNING;
+ VS_INFO_TYPE = AV_LOG_INFO;
+ VS_MSG_TYPE = AV_LOG_VERBOSE;
+
+ vs_log = vs_2_av_log_wrapper;
+
+ VS_ERROR = 0;
+ VS_OK = 1;
+}
diff --git a/libavfilter/vidstabutils.h b/libavfilter/vidstabutils.h
new file mode 100644
index 0000000..f1c20e6
--- /dev/null
+++ b/libavfilter/vidstabutils.h
@@ -0,0 +1,36 @@
+/*
+ * 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
+ */
+
+#ifndef AVFILTER_VIDSTABUTILS_H
+#define AVFILTER_VIDSTABUTILS_H
+
+#include <vid.stab/libvidstab.h>
+
+#include "avfilter.h"
+
+/* ** some conversions from avlib to vid.stab constants and functions *** */
+
+/** converts the pixelformat of avlib into the one of the vid.stab library */
+VSPixelFormat av_2_vs_pixel_format(AVFilterContext *ctx, enum AVPixelFormat pf);
+
+/** sets the memory allocation function and logging constants to av versions */
+void vs_set_mem_and_log_functions(void);
+
+#endif
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