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avfilter/vf_stereo3d: add direct (faster) path:

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for above below and side by side to alternating format
for above below and side by side to mono format

Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2015-12-15 11:11:41 +01:00
parent 577e0132a2
commit c54632d381
1 changed files with 101 additions and 20 deletions
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85
libavfilter/vf_stereo3d.c
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@ -614,6 +614,42 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *inpicref)
ileft = iright = inpicref;
};
if ((s->out.format == ALTERNATING_LR ||
s->out.format == ALTERNATING_RL) &&
(s->in.format == SIDE_BY_SIDE_LR ||
s->in.format == SIDE_BY_SIDE_RL ||
s->in.format == SIDE_BY_SIDE_2_LR ||
s->in.format == SIDE_BY_SIDE_2_RL ||
s->in.format == ABOVE_BELOW_LR ||
s->in.format == ABOVE_BELOW_RL ||
s->in.format == ABOVE_BELOW_2_LR ||
s->in.format == ABOVE_BELOW_2_RL)) {
oright = av_frame_clone(inpicref);
oleft = av_frame_clone(inpicref);
if (!oright || !oleft) {
av_frame_free(&oright);
av_frame_free(&oleft);
av_frame_free(&s->prev);
av_frame_free(&inpicref);
return AVERROR(ENOMEM);
}
} else if ((s->out.format == MONO_L ||
s->out.format == MONO_R) &&
(s->in.format == SIDE_BY_SIDE_LR ||
s->in.format == SIDE_BY_SIDE_RL ||
s->in.format == SIDE_BY_SIDE_2_LR ||
s->in.format == SIDE_BY_SIDE_2_RL ||
s->in.format == ABOVE_BELOW_LR ||
s->in.format == ABOVE_BELOW_RL ||
s->in.format == ABOVE_BELOW_2_LR ||
s->in.format == ABOVE_BELOW_2_RL)) {
out = oleft = oright = av_frame_clone(inpicref);
if (!out) {
av_frame_free(&s->prev);
av_frame_free(&inpicref);
return AVERROR(ENOMEM);
}
} else {
out = oleft = oright = ff_get_video_buffer(outlink, outlink->w, outlink->h);
if (!out) {
av_frame_free(&s->prev);
@ -633,6 +669,7 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *inpicref)
}
av_frame_copy_props(oright, inpicref);
}
}
for (i = 0; i < 4; i++) {
int hsub = i == 1 || i == 2 ? s->hsub : 0;
@ -644,6 +681,32 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *inpicref)
}
switch (s->out.format) {
case ALTERNATING_LR:
case ALTERNATING_RL:
switch (s->in.format) {
case ABOVE_BELOW_LR:
case ABOVE_BELOW_RL:
case ABOVE_BELOW_2_LR:
case ABOVE_BELOW_2_RL:
case SIDE_BY_SIDE_LR:
case SIDE_BY_SIDE_RL:
case SIDE_BY_SIDE_2_LR:
case SIDE_BY_SIDE_2_RL:
oleft->width = outlink->w;
oright->width = outlink->w;
oleft->height = outlink->h;
oright->height = outlink->h;
for (i = 0; i < s->nb_planes; i++) {
oleft->data[i] += s->in_off_left[i];
oright->data[i] += s->in_off_right[i];
}
break;
default:
goto copy;
break;
}
break;
case HDMI:
for (i = 0; i < s->nb_planes; i++) {
int j, h = s->height >> ((i == 1 || i == 2) ? s->vsub : 0);
@ -652,8 +715,6 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *inpicref)
for (j = h; j < h + b; j++)
memset(oleft->data[i] + j * s->linesize[i], 0, s->linesize[i]);
}
case ALTERNATING_LR:
case ALTERNATING_RL:
case SIDE_BY_SIDE_LR:
case SIDE_BY_SIDE_RL:
case SIDE_BY_SIDE_2_LR:
@ -664,6 +725,7 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *inpicref)
case ABOVE_BELOW_2_RL:
case INTERLEAVE_ROWS_LR:
case INTERLEAVE_ROWS_RL:
copy:
for (i = 0; i < s->nb_planes; i++) {
av_image_copy_plane(oleft->data[i] + out_off_left[i],
oleft->linesize[i] * s->out.row_step,
@ -680,6 +742,23 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *inpicref)
case MONO_L:
iright = ileft;
case MONO_R:
switch (s->in.format) {
case ABOVE_BELOW_LR:
case ABOVE_BELOW_RL:
case ABOVE_BELOW_2_LR:
case ABOVE_BELOW_2_RL:
case SIDE_BY_SIDE_LR:
case SIDE_BY_SIDE_RL:
case SIDE_BY_SIDE_2_LR:
case SIDE_BY_SIDE_2_RL:
out->width = outlink->w;
out->height = outlink->h;
for (i = 0; i < s->nb_planes; i++) {
out->data[i] += s->in_off_left[i];
}
break;
default:
for (i = 0; i < s->nb_planes; i++) {
av_image_copy_plane(out->data[i], out->linesize[i],
iright->data[i] + s->in_off_left[i],
@ -687,6 +766,8 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *inpicref)
s->linesize[i], s->pheight[i]);
}
break;
}
break;
case ANAGLYPH_RB_GRAY:
case ANAGLYPH_RG_GRAY:
case ANAGLYPH_RC_GRAY: