diff options
Diffstat (limited to 'libavfilter/vf_cropdetect.c')
| -rw-r--r-- | libavfilter/vf_cropdetect.c | 74 |
1 files changed, 41 insertions, 33 deletions
diff --git a/libavfilter/vf_cropdetect.c b/libavfilter/vf_cropdetect.c index 60b2004a6d..3aa2448f97 100644 --- a/libavfilter/vf_cropdetect.c +++ b/libavfilter/vf_cropdetect.c @@ -1,19 +1,19 @@ /* * Copyright (c) 2002 A'rpi - * This file is part of Libav. + * This file is part of FFmpeg. * - * Libav is free software; you can redistribute it and/or modify + * FFmpeg is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * - * Libav is distributed in the hope that it will be useful, + * 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 General Public License for more details. * * You should have received a copy of the GNU General Public License along - * with Libav; if not, write to the Free Software Foundation, Inc., + * with FFmpeg; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ @@ -23,8 +23,6 @@ * Ported from MPlayer libmpcodecs/vf_cropdetect.c. */ -#include <stdio.h> - #include "libavutil/imgutils.h" #include "libavutil/internal.h" #include "libavutil/opt.h" @@ -114,15 +112,23 @@ static int config_input(AVFilterLink *inlink) return 0; } +#define SET_META(key, value) \ + snprintf(buf, sizeof(buf), "%d", value); \ + av_dict_set(metadata, key, buf, 0) + static int filter_frame(AVFilterLink *inlink, AVFrame *frame) { AVFilterContext *ctx = inlink->dst; CropDetectContext *s = ctx->priv; int bpp = s->max_pixsteps[0]; int w, h, x, y, shrink_by; + AVDictionary **metadata; + char buf[32]; // ignore first 2 frames - they may be empty if (++s->frame_nb > 0) { + metadata = avpriv_frame_get_metadatap(frame); + // Reset the crop area every reset_count frames, if reset_count is > 0 if (s->reset_count > 0 && s->frame_nb > s->reset_count) { s->x1 = frame->width - 1; @@ -183,6 +189,15 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *frame) h -= shrink_by; y += (shrink_by/2 + 1) & ~1; + SET_META("lavfi.cropdetect.x1", s->x1); + SET_META("lavfi.cropdetect.x2", s->x2); + SET_META("lavfi.cropdetect.y1", s->y1); + SET_META("lavfi.cropdetect.y2", s->y2); + SET_META("lavfi.cropdetect.w", w); + SET_META("lavfi.cropdetect.h", h); + SET_META("lavfi.cropdetect.x", x); + SET_META("lavfi.cropdetect.y", y); + av_log(ctx, AV_LOG_INFO, "x1:%d x2:%d y1:%d y2:%d w:%d h:%d x:%d y:%d pts:%"PRId64" t:%f crop=%d:%d:%d:%d\n", s->x1, s->x2, s->y1, s->y2, w, h, x, y, frame->pts, @@ -194,28 +209,24 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *frame) } #define OFFSET(x) offsetof(CropDetectContext, x) -#define FLAGS AV_OPT_FLAG_VIDEO_PARAM -static const AVOption options[] = { - { "limit", "Threshold below which the pixel is considered black", OFFSET(limit), AV_OPT_TYPE_INT, { .i64 = 24 }, 0, INT_MAX, FLAGS }, - { "round", "Value by which the width/height should be divisible", OFFSET(round), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, FLAGS }, +#define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM + +static const AVOption cropdetect_options[] = { + { "limit", "Threshold below which the pixel is considered black", OFFSET(limit), AV_OPT_TYPE_INT, { .i64 = 24 }, 0, 255, FLAGS }, + { "round", "Value by which the width/height should be divisible", OFFSET(round), AV_OPT_TYPE_INT, { .i64 = 16 }, 0, INT_MAX, FLAGS }, { "reset", "Recalculate the crop area after this many frames", OFFSET(reset_count), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, FLAGS }, - { NULL }, + { "reset_count", "Recalculate the crop area after this many frames",OFFSET(reset_count),AV_OPT_TYPE_INT,{ .i64 = 0 }, 0, INT_MAX, FLAGS }, + { NULL } }; -static const AVClass cropdetect_class = { - .class_name = "cropdetect", - .item_name = av_default_item_name, - .option = options, - .version = LIBAVUTIL_VERSION_INT, -}; +AVFILTER_DEFINE_CLASS(cropdetect); static const AVFilterPad avfilter_vf_cropdetect_inputs[] = { { - .name = "default", - .type = AVMEDIA_TYPE_VIDEO, - .config_props = config_input, - .get_video_buffer = ff_null_get_video_buffer, - .filter_frame = filter_frame, + .name = "default", + .type = AVMEDIA_TYPE_VIDEO, + .config_props = config_input, + .filter_frame = filter_frame, }, { NULL } }; @@ -229,16 +240,13 @@ static const AVFilterPad avfilter_vf_cropdetect_outputs[] = { }; AVFilter avfilter_vf_cropdetect = { - .name = "cropdetect", - .description = NULL_IF_CONFIG_SMALL("Auto-detect crop size."), - - .priv_size = sizeof(CropDetectContext), - .priv_class = &cropdetect_class, - .init = init, - + .name = "cropdetect", + .description = NULL_IF_CONFIG_SMALL("Auto-detect crop size."), + .priv_size = sizeof(CropDetectContext), + .priv_class = &cropdetect_class, + .init = init, .query_formats = query_formats, - - .inputs = avfilter_vf_cropdetect_inputs, - - .outputs = avfilter_vf_cropdetect_outputs, + .inputs = avfilter_vf_cropdetect_inputs, + .outputs = avfilter_vf_cropdetect_outputs, + .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC, }; |