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Merge remote-tracking branch 'qatar/master'

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* qatar/master:
  vf_fieldorder: require write permissions
  vf_fieldorder: reindent

Conflicts:
	libavfilter/vf_fieldorder.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-11-29 02:54:50 +01:00
commit 1eb8809a41
1 changed files with 36 additions and 36 deletions
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72
libavfilter/vf_fieldorder.c
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@ -133,46 +133,46 @@ static int filter_frame(AVFilterLink *inlink, AVFilterBufferRef *frame)
frame->video->top_field_first == s->dst_tff)
return ff_filter_frame(outlink, frame);
av_dlog(ctx,
"picture will move %s one line\n",
s->dst_tff ? "up" : "down");
h = frame->video->h;
for (plane = 0; plane < 4 && frame->data[plane]; plane++) {
line_step = frame->linesize[plane];
line_size = s->line_size[plane];
data = frame->data[plane];
if (s->dst_tff) {
/** Move every line up one line, working from
* the top to the bottom of the frame.
* The original top line is lost.
* The new last line is created as a copy of the
* penultimate line from that field. */
for (line = 0; line < h; line++) {
if (1 + line < frame->video->h) {
memcpy(data, data + line_step, line_size);
} else {
memcpy(data, data - line_step - line_step, line_size);
}
data += line_step;
av_dlog(ctx,
"picture will move %s one line\n",
s->dst_tff ? "up" : "down");
h = frame->video->h;
for (plane = 0; plane < 4 && frame->data[plane]; plane++) {
line_step = frame->linesize[plane];
line_size = s->line_size[plane];
data = frame->data[plane];
if (s->dst_tff) {
/** Move every line up one line, working from
* the top to the bottom of the frame.
* The original top line is lost.
* The new last line is created as a copy of the
* penultimate line from that field. */
for (line = 0; line < h; line++) {
if (1 + line < frame->video->h) {
memcpy(data, data + line_step, line_size);
} else {
memcpy(data, data - line_step - line_step, line_size);
}
} else {
/** Move every line down one line, working from
* the bottom to the top of the frame.
* The original bottom line is lost.
* The new first line is created as a copy of the
* second line from that field. */
data += (h - 1) * line_step;
for (line = h - 1; line >= 0 ; line--) {
if (line > 0) {
memcpy(data, data - line_step, line_size);
} else {
memcpy(data, data + line_step + line_step, line_size);
}
data -= line_step;
data += line_step;
}
} else {
/** Move every line down one line, working from
* the bottom to the top of the frame.
* The original bottom line is lost.
* The new first line is created as a copy of the
* second line from that field. */
data += (h - 1) * line_step;
for (line = h - 1; line >= 0 ; line--) {
if (line > 0) {
memcpy(data, data - line_step, line_size);
} else {
memcpy(data, data + line_step + line_step, line_size);
}
data -= line_step;
}
}
frame->video->top_field_first = s->dst_tff;
}
frame->video->top_field_first = s->dst_tff;
return ff_filter_frame(outlink, frame);
}