From: Clément Bœsch <clem...@stupeflix.com> --- libavfilter/vf_scale.c | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/libavfilter/vf_scale.c b/libavfilter/vf_scale.c index f2f475e..d8f5f77 100644 --- a/libavfilter/vf_scale.c +++ b/libavfilter/vf_scale.c @@ -110,6 +110,8 @@ typedef struct ScaleContext { int in_v_chr_pos; int force_original_aspect_ratio; + + int nb_slices; } ScaleContext; AVFilter ff_vf_scale2ref; @@ -575,6 +577,11 @@ static int filter_frame(AVFilterLink *link, AVFrame *in) if(scale->interlaced>0 || (scale->interlaced<0 && in->interlaced_frame)){ scale_slice(link, out, in, scale->isws[0], 0, (link->h+1)/2, 2, 0); scale_slice(link, out, in, scale->isws[1], 0, link->h /2, 2, 1); + }else if (scale->nb_slices) { + int i; + const int slice_h = FFMAX(1, link->h / scale->nb_slices); + for (i = 0; i < scale->nb_slices; i++) + scale_slice(link, out, in, scale->sws, i*slice_h, slice_h, 1, 0); }else{ scale_slice(link, out, in, scale->sws, 0, link->h, 1, 0); } @@ -651,6 +658,7 @@ static const AVOption scale_options[] = { { "increase", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 2 }, 0, 0, FLAGS, "force_oar" }, { "param0", "Scaler param 0", OFFSET(param[0]), AV_OPT_TYPE_DOUBLE, { .dbl = SWS_PARAM_DEFAULT }, INT_MIN, INT_MAX, FLAGS }, { "param1", "Scaler param 1", OFFSET(param[1]), AV_OPT_TYPE_DOUBLE, { .dbl = SWS_PARAM_DEFAULT }, INT_MIN, INT_MAX, FLAGS }, + { "nb_slices", "set the number of slices (debug purpose only)", OFFSET(nb_slices), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, FLAGS }, { NULL } }; -- 2.6.4 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel