diff options
author | Paul B Mahol <onemda@gmail.com> | 2015-10-20 11:26:54 +0300 |
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committer | Paul B Mahol <onemda@gmail.com> | 2015-10-23 12:49:01 +0300 |
commit | ca09eacbced651f1ccf514aa6031ca6b01fbd9c2 (patch) | |
tree | 17a72958105f76b10402d77944c7faeaff9e1965 | |
parent | 573334da8242a9d1e80572b7bf0979200899565f (diff) |
avfilter: add shuffleframes filter
Signed-off-by: Paul B Mahol <onemda@gmail.com>
-rw-r--r-- | Changelog | 1 | ||||
-rw-r--r-- | doc/filters.texi | 20 | ||||
-rw-r--r-- | libavfilter/Makefile | 1 | ||||
-rw-r--r-- | libavfilter/allfilters.c | 1 | ||||
-rw-r--r-- | libavfilter/version.h | 2 | ||||
-rw-r--r-- | libavfilter/vf_shuffleframes.c | 162 |
6 files changed, 186 insertions, 1 deletions
@@ -24,6 +24,7 @@ version <next>: - zscale filter - wve demuxer - zero-copy Intel QSV transcoding in ffmpeg +- shuffleframes filter version 2.8: diff --git a/doc/filters.texi b/doc/filters.texi index 6a1596eef4..5a35bdeabb 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -9946,6 +9946,26 @@ Set the size of the box used to represent one palette color entry. Default is @code{30} (for a @code{30x30} pixel box). @end table +@section shuffleframes + +Reorder and/or duplicate video frames. + +It accepts the following parameters: + +@table @option +@item mapping +Set the destination indexes of input frames. +This is space or '|' separated list of indexes that maps input frames to output +frames. Number of indexes also sets maximal value that each index may have. +@end table + +The first frame has the index 0. The default is to keep the input unchanged. + +Swap second and third frame of every three frames of the input: +@example +ffmpeg -i INPUT -vf "shuffleframes=0 2 1" OUTPUT +@end example + @section shuffleplanes Reorder and/or duplicate video planes. diff --git a/libavfilter/Makefile b/libavfilter/Makefile index a095a1095b..8e776c1d81 100644 --- a/libavfilter/Makefile +++ b/libavfilter/Makefile @@ -215,6 +215,7 @@ OBJS-$(CONFIG_SETSAR_FILTER) += vf_aspect.o OBJS-$(CONFIG_SETTB_FILTER) += settb.o OBJS-$(CONFIG_SHOWINFO_FILTER) += vf_showinfo.o OBJS-$(CONFIG_SHOWPALETTE_FILTER) += vf_showpalette.o +OBJS-$(CONFIG_SHUFFLEFRAMES_FILTER) += vf_shuffleframes.o OBJS-$(CONFIG_SHUFFLEPLANES_FILTER) += vf_shuffleplanes.o OBJS-$(CONFIG_SIGNALSTATS_FILTER) += vf_signalstats.o OBJS-$(CONFIG_SMARTBLUR_FILTER) += vf_smartblur.o diff --git a/libavfilter/allfilters.c b/libavfilter/allfilters.c index 3ab9a487e4..9385fdfaf6 100644 --- a/libavfilter/allfilters.c +++ b/libavfilter/allfilters.c @@ -236,6 +236,7 @@ void avfilter_register_all(void) REGISTER_FILTER(SETTB, settb, vf); REGISTER_FILTER(SHOWINFO, showinfo, vf); REGISTER_FILTER(SHOWPALETTE, showpalette, vf); + REGISTER_FILTER(SHUFFLEFRAMES, shuffleframes, vf); REGISTER_FILTER(SHUFFLEPLANES, shuffleplanes, vf); REGISTER_FILTER(SIGNALSTATS, signalstats, vf); REGISTER_FILTER(SMARTBLUR, smartblur, vf); diff --git a/libavfilter/version.h b/libavfilter/version.h index 4a24484d83..7c68fe0157 100644 --- a/libavfilter/version.h +++ b/libavfilter/version.h @@ -30,7 +30,7 @@ #include "libavutil/version.h" #define LIBAVFILTER_VERSION_MAJOR 6 -#define LIBAVFILTER_VERSION_MINOR 12 +#define LIBAVFILTER_VERSION_MINOR 13 #define LIBAVFILTER_VERSION_MICRO 100 #define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \ diff --git a/libavfilter/vf_shuffleframes.c b/libavfilter/vf_shuffleframes.c new file mode 100644 index 0000000000..306445b821 --- /dev/null +++ b/libavfilter/vf_shuffleframes.c @@ -0,0 +1,162 @@ +/* + * Copyright (c) 2015 Paul B Mahol + * + * 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 "libavutil/avstring.h" +#include "libavutil/common.h" +#include "libavutil/internal.h" +#include "libavutil/opt.h" + +#include "avfilter.h" +#include "internal.h" +#include "video.h" + +typedef struct ShuffleFramesContext { + const AVClass *class; + char *mapping; + AVFrame **frames; + int *map; + int64_t *pts; + int in_frames; + int nb_frames; +} ShuffleFramesContext; + +static av_cold int init(AVFilterContext *ctx) +{ + ShuffleFramesContext *s = ctx->priv; + char *mapping, *saveptr = NULL, *p; + int n, nb_items; + + nb_items = 1; + for (p = s->mapping; *p; p++) { + if (*p == '|' || *p == ' ') + nb_items++; + } + + s->frames = av_calloc(nb_items, sizeof(*s->frames)); + s->map = av_calloc(nb_items, sizeof(*s->map)); + s->pts = av_calloc(nb_items, sizeof(*s->pts)); + if (!s->map || !s->frames || !s->pts) { + return AVERROR(ENOMEM); + } + + mapping = av_strdup(s->mapping); + if (!mapping) + return AVERROR(ENOMEM); + + for (n = 0; n < nb_items; n++) { + char *map = av_strtok(n == 0 ? mapping : NULL, " |", &saveptr); + if (!map || sscanf(map, "%d", &s->map[n]) != 1) { + av_free(mapping); + return AVERROR(EINVAL); + } + + if (s->map[n] < 0 || s->map[n] >= nb_items) { + av_log(ctx, AV_LOG_ERROR, "Index out of range.\n"); + av_free(mapping); + return AVERROR(EINVAL); + } + } + + s->nb_frames = nb_items; + av_free(mapping); + return 0; +} + +static int filter_frame(AVFilterLink *inlink, AVFrame *frame) +{ + AVFilterContext *ctx = inlink->dst; + ShuffleFramesContext *s = ctx->priv; + int ret; + + if (s->in_frames < s->nb_frames) { + s->frames[s->in_frames] = frame; + s->pts[s->in_frames] = frame->pts; + s->in_frames++; + ret = 0; + } + + if (s->in_frames == s->nb_frames) { + int n, x; + + for (n = 0; n < s->nb_frames; n++) { + AVFrame *out; + + x = s->map[n]; + out = av_frame_clone(s->frames[x]); + if (!out) + return AVERROR(ENOMEM); + out->pts = s->pts[n]; + ret = ff_filter_frame(ctx->outputs[0], out); + s->in_frames--; + } + + for (n = 0; n < s->nb_frames; n++) + av_frame_free(&s->frames[n]); + } + + return ret; +} + +static av_cold void uninit(AVFilterContext *ctx) +{ + ShuffleFramesContext *s = ctx->priv; + + av_freep(&s->frames); + av_freep(&s->map); + av_freep(&s->pts); +} + +#define OFFSET(x) offsetof(ShuffleFramesContext, x) +#define FLAGS (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM) +static const AVOption shuffleframes_options[] = { + { "mapping", "set destination indexes of input frames", OFFSET(mapping), AV_OPT_TYPE_STRING, {.str="0"}, 0, 0, FLAGS }, + { NULL }, +}; + +AVFILTER_DEFINE_CLASS(shuffleframes); + +static const AVFilterPad shuffleframes_inputs[] = { + { + .name = "default", + .type = AVMEDIA_TYPE_VIDEO, + .filter_frame = filter_frame, + }, + { NULL }, +}; + +static const AVFilterPad shuffleframes_outputs[] = { + { + .name = "default", + .type = AVMEDIA_TYPE_VIDEO, + }, + { NULL }, +}; + +AVFilter ff_vf_shuffleframes = { + .name = "shuffleframes", + .description = NULL_IF_CONFIG_SMALL("Shuffle video frames"), + .priv_size = sizeof(ShuffleFramesContext), + .priv_class = &shuffleframes_class, + .init = init, + .uninit = uninit, + .inputs = shuffleframes_inputs, + .outputs = shuffleframes_outputs, + .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC, +}; |