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deshake: limit deshake to specific area to search for motion vectors.
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@ -92,6 +92,10 @@ typedef struct {
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int refcount; ///< Number of reference frames (defines averaging window)
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FILE *fp;
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Transform avg;
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int cw; ///< Crop motion search to this box
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int ch;
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int cx;
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int cy;
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} DeshakeContext;
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static int cmp(const double *a, const double *b)
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@ -341,8 +345,15 @@ static av_cold int init(AVFilterContext *ctx, const char *args, void *opaque)
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deshake->search = EXHAUSTIVE;
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deshake->refcount = 20;
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deshake->cw = -1;
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deshake->ch = -1;
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deshake->cx = -1;
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deshake->cy = -1;
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if (args) {
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sscanf(args, "%d:%d:%d:%d:%d:%d:%255s", &deshake->rx, &deshake->ry, (int *)&deshake->edge,
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sscanf(args, "%d:%d:%d:%d:%d:%d:%d:%d:%d:%d:%255s",
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&deshake->cx, &deshake->cy, &deshake->cw, &deshake->ch,
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&deshake->rx, &deshake->ry, (int *)&deshake->edge,
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&deshake->blocksize, &deshake->contrast, (int *)&deshake->search, filename);
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deshake->blocksize /= 2;
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@ -353,13 +364,22 @@ static av_cold int init(AVFilterContext *ctx, const char *args, void *opaque)
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deshake->blocksize = av_clip(deshake->blocksize, 4, 128);
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deshake->contrast = av_clip(deshake->contrast, 1, 255);
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deshake->search = av_clip(deshake->search, EXHAUSTIVE, SEARCH_COUNT - 1);
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}
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if (*filename)
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deshake->fp = fopen(filename, "w");
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if (deshake->fp)
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fwrite("Ori x, Avg x, Fin x, Ori y, Avg y, Fin y, Ori angle, Avg angle, Fin angle, Ori zoom, Avg zoom, Fin zoom\n", sizeof(char), 104, deshake->fp);
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av_log(ctx, AV_LOG_INFO, "rx: %d, ry: %d, edge: %d blocksize: %d contrast: %d search: %d\n",
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// Quadword align left edge of box for MMX code, adjust width if necessary
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// to keep right margin
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if (deshake->cx > 0) {
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deshake->cw += deshake->cx - (deshake->cx & ~15);
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deshake->cx &= ~15;
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}
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av_log(ctx, AV_LOG_INFO, "cx: %d, cy: %d, cw: %d, ch: %d, rx: %d, ry: %d, edge: %d blocksize: %d contrast: %d search: %d\n",
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deshake->cx, deshake->cy, deshake->cw, deshake->ch,
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deshake->rx, deshake->ry, deshake->edge, deshake->blocksize * 2, deshake->contrast, deshake->search);
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return 0;
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@ -414,8 +434,28 @@ static void end_frame(AVFilterLink *link)
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char tmp[256];
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Transform orig;
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// Find the most likely global motion for the current frame
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find_motion(deshake, (deshake->ref == NULL) ? in->data[0] : deshake->ref->data[0], in->data[0], link->w, link->h, in->linesize[0], &t);
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if (deshake->cx < 0 || deshake->cy < 0 || deshake->cw < 0 || deshake->ch < 0) {
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// Find the most likely global motion for the current frame
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find_motion(deshake, (deshake->ref == NULL) ? in->data[0] : deshake->ref->data[0], in->data[0], link->w, link->h, in->linesize[0], &t);
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} else {
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uint8_t *src1 = (deshake->ref == NULL) ? in->data[0] : deshake->ref->data[0];
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uint8_t *src2 = in->data[0];
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deshake->cx = FFMIN(deshake->cx, link->w);
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deshake->cy = FFMIN(deshake->cy, link->h);
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if ((unsigned)deshake->cx + (unsigned)deshake->cw > link->w) deshake->cw = link->w - deshake->cx;
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if ((unsigned)deshake->cy + (unsigned)deshake->ch > link->h) deshake->ch = link->h - deshake->cy;
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// Quadword align right margin
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deshake->cw &= ~15;
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src1 += deshake->cy * in->linesize[0] + deshake->cx;
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src2 += deshake->cy * in->linesize[0] + deshake->cx;
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find_motion(deshake, src1, src2, deshake->cw, deshake->ch, in->linesize[0], &t);
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}
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// Copy transform so we can output it later to compare to the smoothed value
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orig.vector.x = t.vector.x;
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