From: Niklas Haas <g...@haasn.dev>
Give users and developers a way to opt in to the new format conversion code,
and more code from the swscale rewrite in general.
---
doc/APIchanges | 3 +++
doc/scaler.texi | 3 +++
libswscale/options.c | 1 +
libswscale/swscale.h | 7 +++++++
libswscale/version.h | 2 +-
5 files changed, 15 insertions(+), 1 deletion(-)
diff --git a/doc/APIchanges b/doc/APIchanges
index 22aa6fa5c7..84bc721569 100644
--- a/doc/APIchanges
+++ b/doc/APIchanges
@@ -2,6 +2,9 @@ The last version increases of all libraries were on 2025-03-28
API changes, most recent first:
+2025-04-xx - xxxxxxxxxx - lsws 9.1.100 - swscale.h
+ Add SWS_EXPERIMENTAL flag.
+
2025-04-16 - c818c67991 - libpostproc 59.1.100 - postprocess.h
Deprecate PP_CPU_CAPS_3DNOW.
diff --git a/doc/scaler.texi b/doc/scaler.texi
index eb045de6b7..519a83b5d3 100644
--- a/doc/scaler.texi
+++ b/doc/scaler.texi
@@ -68,6 +68,9 @@ Select full chroma input.
@item bitexact
Enable bitexact output.
+
+@item experimental
+Allow the use of experimental new code. For testing only.
@end table
@item srcw @var{(API only)}
diff --git a/libswscale/options.c b/libswscale/options.c
index feecae8c89..044c7c7f0b 100644
--- a/libswscale/options.c
+++ b/libswscale/options.c
@@ -50,6 +50,7 @@ static const AVOption swscale_options[] = {
{ "full_chroma_inp", "full chroma input", 0,
AV_OPT_TYPE_CONST, { .i64 = SWS_FULL_CHR_H_INP }, .flags = VE, .unit =
"sws_flags" },
{ "bitexact", "bit-exact mode", 0,
AV_OPT_TYPE_CONST, { .i64 = SWS_BITEXACT }, .flags = VE, .unit =
"sws_flags" },
{ "error_diffusion", "error diffusion dither", 0,
AV_OPT_TYPE_CONST, { .i64 = SWS_ERROR_DIFFUSION}, .flags = VE, .unit =
"sws_flags" },
+ { "experimental", "allow experimental new code", 0,
AV_OPT_TYPE_CONST, { .i64 = SWS_EXPERIMENTAL }, .flags = VE, .unit =
"sws_flags" },
{ "param0", "scaler param 0", OFFSET(scaler_params[0]),
AV_OPT_TYPE_DOUBLE, { .dbl = SWS_PARAM_DEFAULT }, INT_MIN, INT_MAX, VE },
{ "param1", "scaler param 1", OFFSET(scaler_params[1]),
AV_OPT_TYPE_DOUBLE, { .dbl = SWS_PARAM_DEFAULT }, INT_MIN, INT_MAX, VE },
diff --git a/libswscale/swscale.h b/libswscale/swscale.h
index b04aa182d2..82a69e97fc 100644
--- a/libswscale/swscale.h
+++ b/libswscale/swscale.h
@@ -155,6 +155,13 @@ typedef enum SwsFlags {
SWS_ACCURATE_RND = 1 << 18,
SWS_BITEXACT = 1 << 19,
+ /**
+ * Allow using experimental new code paths. This may be faster, slower,
+ * or produce different output, with semantics subject to change at any
+ * point in time. For testing and debugging purposes only.
+ */
+ SWS_EXPERIMENTAL = 1 << 20,
+
/**
* Deprecated flags.
*/
diff --git a/libswscale/version.h b/libswscale/version.h
index 148efd83eb..4e54701aba 100644
--- a/libswscale/version.h
+++ b/libswscale/version.h
@@ -28,7 +28,7 @@
#include "version_major.h"
-#define LIBSWSCALE_VERSION_MINOR 0
+#define LIBSWSCALE_VERSION_MINOR 1
#define LIBSWSCALE_VERSION_MICRO 100
#define LIBSWSCALE_VERSION_INT AV_VERSION_INT(LIBSWSCALE_VERSION_MAJOR, \
--
2.49.0
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