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avfilter/vf_minterpolate: Fix left shift of negative value
This has happened when initializing the motion estimation context if width or height of the video was smaller than the block size used for motion estimation and if the motion interpolation mode indicates not to use motion estimation. The solution is of course to only initialize the motion estimation context if the interpolation mode uses motion estimation. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
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@ -368,6 +368,15 @@ static int config_input(AVFilterLink *inlink)
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2 * mi_ctx->mb_size);
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return AVERROR(EINVAL);
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}
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ff_me_init_context(me_ctx, mi_ctx->mb_size, mi_ctx->search_param,
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width, height, 0, (mi_ctx->b_width - 1) << mi_ctx->log2_mb_size,
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0, (mi_ctx->b_height - 1) << mi_ctx->log2_mb_size);
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if (mi_ctx->me_mode == ME_MODE_BIDIR)
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me_ctx->get_cost = &get_sad_ob;
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else if (mi_ctx->me_mode == ME_MODE_BILAT)
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me_ctx->get_cost = &get_sbad_ob;
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mi_ctx->pixel_mvs = av_mallocz_array(width * height, sizeof(PixelMVS));
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mi_ctx->pixel_weights = av_mallocz_array(width * height, sizeof(PixelWeights));
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mi_ctx->pixel_refs = av_mallocz_array(width * height, sizeof(PixelRefs));
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@ -395,13 +404,6 @@ static int config_input(AVFilterLink *inlink)
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return AVERROR(EINVAL);
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}
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ff_me_init_context(me_ctx, mi_ctx->mb_size, mi_ctx->search_param, width, height, 0, (mi_ctx->b_width - 1) << mi_ctx->log2_mb_size, 0, (mi_ctx->b_height - 1) << mi_ctx->log2_mb_size);
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if (mi_ctx->me_mode == ME_MODE_BIDIR)
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me_ctx->get_cost = &get_sad_ob;
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else if (mi_ctx->me_mode == ME_MODE_BILAT)
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me_ctx->get_cost = &get_sbad_ob;
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return 0;
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fail:
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for (i = 0; i < NB_FRAMES; i++)
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@ -830,9 +832,10 @@ static int inject_frame(AVFilterLink *inlink, AVFrame *avf_in)
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return 0;
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}
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static int detect_scene_change(MIContext *mi_ctx)
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static int detect_scene_change(AVFilterContext *ctx)
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{
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AVMotionEstContext *me_ctx = &mi_ctx->me_ctx;
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MIContext *mi_ctx = ctx->priv;
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AVFilterLink *input = ctx->inputs[0];
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uint8_t *p1 = mi_ctx->frames[1].avf->data[0];
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ptrdiff_t linesize1 = mi_ctx->frames[1].avf->linesize[0];
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uint8_t *p2 = mi_ctx->frames[2].avf->data[0];
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@ -841,9 +844,9 @@ static int detect_scene_change(MIContext *mi_ctx)
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if (mi_ctx->scd_method == SCD_METHOD_FDIFF) {
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double ret = 0, mafd, diff;
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uint64_t sad;
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mi_ctx->sad(p1, linesize1, p2, linesize2, me_ctx->width, me_ctx->height, &sad);
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mi_ctx->sad(p1, linesize1, p2, linesize2, input->w, input->h, &sad);
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emms_c();
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mafd = (double) sad * 100.0 / (me_ctx->height * me_ctx->width) / (1 << mi_ctx->bitdepth);
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mafd = (double) sad * 100.0 / (input->h * input->w) / (1 << mi_ctx->bitdepth);
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diff = fabs(mafd - mi_ctx->prev_mafd);
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ret = av_clipf(FFMIN(mafd, diff), 0, 100.0);
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mi_ctx->prev_mafd = mafd;
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@ -1191,7 +1194,7 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *avf_in)
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if (!mi_ctx->frames[0].avf)
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return 0;
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mi_ctx->scene_changed = detect_scene_change(mi_ctx);
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mi_ctx->scene_changed = detect_scene_change(ctx);
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for (;;) {
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AVFrame *avf_out;
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