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avfilter/vf_stereo3d: add HDMI output format

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Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2015-09-05 03:35:46 +00:00
parent 4b2bafbd4c
commit 8bd13eb8be
1 changed files with 19 additions and 0 deletions
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19
libavfilter/vf_stereo3d.c
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@ -62,6 +62,7 @@ enum StereoCode {
ALTERNATING_RL, // alternating frames (right eye first, left eye second)
CHECKERBOARD_LR, // checkerboard pattern (left eye first, right eye second)
CHECKERBOARD_RL, // checkerboard pattern (right eye first, left eye second)
HDMI, // HDMI frame pack (left eye first, right eye second)
STEREO_CODE_COUNT // TODO: needs autodetection
};
@ -145,6 +146,7 @@ typedef struct Stereo3DContext {
int pixstep[4];
AVFrame *prev;
double ts_unit;
int blanks;
int in_off_left[4], in_off_right[4];
} Stereo3DContext;
@ -196,6 +198,7 @@ static const AVOption stereo3d_options[] = {
{ "sbsr", "side by side right first", 0, AV_OPT_TYPE_CONST, {.i64=SIDE_BY_SIDE_RL}, 0, 0, FLAGS, "out" },
{ "chl", "checkerboard left first", 0, AV_OPT_TYPE_CONST, {.i64=CHECKERBOARD_LR}, 0, 0, FLAGS, "out" },
{ "chr", "checkerboard right first", 0, AV_OPT_TYPE_CONST, {.i64=CHECKERBOARD_RL}, 0, 0, FLAGS, "out" },
{ "hdmi", "HDMI frame pack", 0, AV_OPT_TYPE_CONST, {.i64=HDMI}, 0, 0, FLAGS, "out" },
{ NULL }
};
@ -446,6 +449,14 @@ static int config_output(AVFilterLink *outlink)
s->out.height = s->height * 2;
s->out.row_right = s->height;
break;
case HDMI:
if (s->in.height <= 720)
s->blanks = 30;
else
s->blanks = 45;
s->out.height = s->height * 2 + s->blanks;
s->out.row_right = s->height + s->blanks;
break;
case ABOVE_BELOW_2_RL:
aspect.num *= 2;
case ABOVE_BELOW_RL:
@ -614,6 +625,14 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *inpicref)
}
switch (s->out.format) {
case HDMI:
for (i = 0; i < s->nb_planes; i++) {
int j, h = s->height >> ((i == 1 || i == 2) ? s->vsub : 0);
int b = (s->blanks) >> ((i == 1 || i == 2) ? s->vsub : 0);
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: