From 9341bbfc51ad7c2f1b25e841f7ba5792e980582d Mon Sep 17 00:00:00 2001
From: Nicolas George <nicolas.george@normalesup.org>
Date: Tue, 14 Aug 2012 18:51:05 +0200
Subject: [PATCH] vf_yadif: fix permissions.
Require AV_PERM_PRESERVE and leave harmless permissions
alone for the next filter.
---
libavfilter/vf_yadif.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/libavfilter/vf_yadif.c b/libavfilter/vf_yadif.c
index f200cb14744..9f949f800af 100644
--- a/libavfilter/vf_yadif.c
+++ b/libavfilter/vf_yadif.c
@@ -240,7 +240,7 @@ static int start_frame(AVFilterLink *link, AVFilterBufferRef *picref)
return 0;
if (yadif->auto_enable && !yadif->cur->video->interlaced) {
- yadif->out = avfilter_ref_buffer(yadif->cur, AV_PERM_READ);
+ yadif->out = avfilter_ref_buffer(yadif->cur, ~AV_PERM_WRITE);
if (!yadif->out)
return AVERROR(ENOMEM);
@@ -251,7 +251,7 @@ static int start_frame(AVFilterLink *link, AVFilterBufferRef *picref)
}
if (!yadif->prev &&
- !(yadif->prev = avfilter_ref_buffer(yadif->cur, AV_PERM_READ)))
+ !(yadif->prev = avfilter_ref_buffer(yadif->cur, ~AV_PERM_WRITE)))
return AVERROR(ENOMEM);
yadif->out = ff_get_video_buffer(ctx->outputs[0], AV_PERM_WRITE | AV_PERM_PRESERVE |
@@ -304,7 +304,7 @@ static int request_frame(AVFilterLink *link)
ret = ff_request_frame(link->src->inputs[0]);
if (ret == AVERROR_EOF && yadif->cur) {
- AVFilterBufferRef *next = avfilter_ref_buffer(yadif->next, AV_PERM_READ);
+ AVFilterBufferRef *next = avfilter_ref_buffer(yadif->next, ~AV_PERM_WRITE);
if (!next)
return AVERROR(ENOMEM);
@@ -445,7 +445,7 @@ AVFilter avfilter_vf_yadif = {
.start_frame = start_frame,
.draw_slice = null_draw_slice,
.end_frame = end_frame,
- .rej_perms = AV_PERM_REUSE2, },
+ .min_perms = AV_PERM_PRESERVE, },
{ .name = NULL}},
.outputs = (const AVFilterPad[]) {{ .name = "default",
--
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