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| author | Stepan Bujnak <stepan.bujnak@gmail.com> | 2014-07-11 23:40:07 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2014-07-15 23:37:27 +0200 |
| commit | 895e92eca0509e540e98913436533ae032552655 (patch) | |
| tree | f17c53964ecc6f8cb6487ef79130e88a5a0d70fd /libavfilter/vf_blackframe.c | |
| parent | 880dbe43ca71982ecdfe1c73446137d6b2fd24d5 (diff) | |
| download | ffmpeg-895e92eca0509e540e98913436533ae032552655.tar.gz | |
Blackframe video filter now sets metadata accordingly.
the libavfilter/vf_blackframe.c filter now not only logs detected
values, but also sets frame metadata. Currently, only `pblack` value is set
but `SET_META` macro has been introduced to ease development in the future.
Signed-off-by: Stepan Bujnak <stepan.bujnak@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavfilter/vf_blackframe.c')
| -rw-r--r-- | libavfilter/vf_blackframe.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/libavfilter/vf_blackframe.c b/libavfilter/vf_blackframe.c index 0eeda618f9..1be9fcca9d 100644 --- a/libavfilter/vf_blackframe.c +++ b/libavfilter/vf_blackframe.c @@ -58,6 +58,10 @@ static int query_formats(AVFilterContext *ctx) return 0; } +#define SET_META(key, format, value) \ + snprintf(buf, sizeof(buf), format, value); \ + av_dict_set(metadata, key, buf, 0) + static int filter_frame(AVFilterLink *inlink, AVFrame *frame) { AVFilterContext *ctx = inlink->dst; @@ -65,6 +69,8 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *frame) int x, i; int pblack = 0; uint8_t *p = frame->data[0]; + AVDictionary **metadata; + char buf[32]; for (i = 0; i < frame->height; i++) { for (x = 0; x < inlink->w; x++) @@ -76,13 +82,18 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *frame) s->last_keyframe = s->frame; pblack = s->nblack * 100 / (inlink->w * inlink->h); - if (pblack >= s->bamount) + if (pblack >= s->bamount) { + metadata = avpriv_frame_get_metadatap(frame); + av_log(ctx, AV_LOG_INFO, "frame:%u pblack:%u pts:%"PRId64" t:%f " "type:%c last_keyframe:%d\n", s->frame, pblack, frame->pts, frame->pts == AV_NOPTS_VALUE ? -1 : frame->pts * av_q2d(inlink->time_base), av_get_picture_type_char(frame->pict_type), s->last_keyframe); + SET_META("lavfi.blackframe.pblack", "%u", pblack); + } + s->frame++; s->nblack = 0; return ff_filter_frame(inlink->dst->outputs[0], frame); |