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swscale/tests/swscale: check if formats require the legacy path with -hw

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The issue is the legacy path does not support hardware frames, so falling
back means erroring with ENOTSUP, which would fail the tests.

Sponsored-by: Sovereign Tech Fund
This commit is contained in:
Lynne
2026-05-31 01:03:54 +09:00
parent cd89df8f99
commit ac611d3120
1 changed files with 39 additions and 1 deletions
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libswscale/tests/swscale.c
+39 -1
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@@ -27,6 +27,7 @@
#include <signal.h>
#undef HAVE_AV_CONFIG_H
#include "config.h"
#include "libavutil/cpu.h"
#include "libavutil/parseutils.h"
#include "libavutil/pixdesc.h"
@@ -41,6 +42,10 @@
#include "libavutil/hwcontext.h"
#include "libswscale/swscale.h"
#include "libswscale/format.h"
#if CONFIG_UNSTABLE
#include "libswscale/ops.h"
#endif
struct options {
enum AVPixelFormat src_fmt;
@@ -225,7 +230,7 @@ static void unref_buffers(AVFrame *frame)
static int checked_sws_scale_frame(SwsContext *c, AVFrame *dst, const AVFrame *src)
{
int ret = sws_scale_frame(c, dst, src);
if (ret < 0) {
if (ret < 0 && ret != AVERROR(ENOTSUP)) {
av_log(NULL, AV_LOG_ERROR, "Failed %s ---> %s\n",
av_get_pix_fmt_name(src->format), av_get_pix_fmt_name(dst->format));
}
@@ -641,6 +646,37 @@ static inline int fmt_is_subsampled(enum AVPixelFormat fmt)
av_pix_fmt_desc_get(fmt)->log2_chroma_h != 0;
}
/* Returns 1 if the (src_fmt, dst_fmt) pair can be expressed by the new
* swscale ops infrastructure, 0 if it would fall back to the legacy path.
* Used to skip pairs that cannot run on hardware frames. */
static int hw_pair_supported(enum AVPixelFormat src_fmt, enum AVPixelFormat dst_fmt)
{
#if CONFIG_UNSTABLE
SwsContext *ctx;
SwsFormat src, dst;
SwsOpList *ops = NULL;
bool incomplete = false;
int ret;
ctx = sws_alloc_context();
if (!ctx)
return 0;
ff_fmt_from_pixfmt(src_fmt, &src);
src.width = src.height = 96;
ff_fmt_from_pixfmt(dst_fmt, &dst);
dst.width = dst.height = 96;
ff_infer_colors(&src.color, &dst.color);
ret = ff_sws_op_list_generate(ctx, &src, &dst, &ops, &incomplete);
ff_sws_op_list_free(&ops);
sws_free_context(&ctx);
return ret >= 0;
#else
return 1;
#endif
}
static inline int fmt_is_supported_by_hw(enum AVPixelFormat fmt)
{
if (!hw_device_constr)
@@ -693,6 +729,8 @@ static int run_self_tests(const AVFrame *ref, const struct options *opts)
continue;
if (!sws_test_format(dst_fmt, 0) || !sws_test_format(dst_fmt, 1))
continue;
if (hw_device_ctx && !hw_pair_supported(src_fmt, dst_fmt))
continue;
for (int h = 0; h < FF_ARRAY_ELEMS(dst_h); h++) {
for (int w = 0; w < FF_ARRAY_ELEMS(dst_w); w++) {
for (int f = 0; f < FF_ARRAY_ELEMS(flags); f++) {