The range parameters need to be set up before calling
sws_init_context (which selects which fastpaths can be used;
this gets called by sws_getContext); solely passing them via
sws_setColorspaceDetails isn't enough.
This fixes producing full range YUV range output when doing
YUV->YUV conversions between different YUV color spaces.
Signed-off-by: Martin Storsjö <mar...@martin.st>
---
libswscale/utils.c | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)
diff --git a/libswscale/utils.c b/libswscale/utils.c
index 7c8e1bbdde..34f7f0b869 100644
--- a/libswscale/utils.c
+++ b/libswscale/utils.c
@@ -1037,11 +1037,16 @@ int sws_setColorspaceDetails(struct SwsContext *c,
const int inv_table[4],
srcRange, table, dstRange,
brightness, contrast, saturation);
- c->cascaded_context[1] = sws_getContext(tmp_width, tmp_height,
tmp_format,
- dstW, dstH, c->dstFormat,
- c->flags, NULL, NULL,
c->param);
+ c->cascaded_context[1] = sws_alloc_set_opts(tmp_width, tmp_height,
tmp_format,
+ dstW, dstH,
c->dstFormat,
+ c->flags, c->param);
if (!c->cascaded_context[1])
return -1;
+ c->cascaded_context[1]->srcRange = srcRange;
+ c->cascaded_context[1]->dstRange = dstRange;
+ ret = sws_init_context(c->cascaded_context[1], NULL , NULL);
+ if (ret < 0)
+ return ret;
sws_setColorspaceDetails(c->cascaded_context[1], inv_table,
srcRange, table, dstRange,
0, 1 << 16, 1 << 16);
--
2.32.0 (Apple Git-132)
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