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swscale/tests/sws_ops: use a dummy ops backend for printing

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This ensures that the ops printing path goes through the same code as the
actual ops dispatch backend, including all sub-passes etc.

Signed-off-by: Niklas Haas <git@haasn.dev>
This commit is contained in:
Niklas Haas
2026-05-15 19:25:45 +02:00
committed by Niklas Haas
parent 239c679c54
commit 369a301669
1 changed files with 36 additions and 8 deletions
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44
libswscale/tests/sws_ops.c
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@@ -24,6 +24,7 @@
#include "libavutil/pixdesc.h"
#include "libavutil/tree.h"
#include "libswscale/ops.h"
#include "libswscale/ops_dispatch.h"
#include "libswscale/format.h"
#ifdef _WIN32
@@ -31,20 +32,38 @@
#include <fcntl.h>
#endif
static int print_ops(SwsContext *const ctx, void *opaque, SwsOpList *ops)
static int print_ops(SwsContext *ctx, SwsOpList *ops, SwsCompiledOp *out)
{
av_log(opaque, AV_LOG_INFO, "%s %dx%d -> %s %dx%d:\n",
ff_sws_op_list_print(NULL, AV_LOG_INFO, AV_LOG_INFO, ops);
*out = (SwsCompiledOp) {0}; /* dummy value, will be immediately freed */
return 0;
}
/* Dummy backend that just prints all seen op lists */
static const SwsOpBackend backend_print = {
.name = "print_ops",
.compile = print_ops,
};
static int print_passes(SwsContext *ctx, void *graph, SwsOpList *ops)
{
av_log(NULL, AV_LOG_INFO, "%s %dx%d -> %s %dx%d:\n",
av_get_pix_fmt_name(ops->src.format),
ops->src.width, ops->src.height,
av_get_pix_fmt_name(ops->dst.format),
ops->dst.width, ops->dst.height);
if (ff_sws_op_list_is_noop(ops))
av_log(opaque, AV_LOG_INFO, " (no-op)\n");
else
ff_sws_op_list_print(opaque, AV_LOG_INFO, AV_LOG_INFO, ops);
if (ff_sws_op_list_is_noop(ops)) {
av_log(NULL, AV_LOG_INFO, " (no-op)\n");
return 0;
}
return 0;
/* ff_sws_compile_pass() takes over ownership of `ops` */
SwsOpList *copy = ff_sws_op_list_duplicate(ops);
if (!copy)
return AVERROR(ENOMEM);
return ff_sws_compile_pass(graph, &backend_print, &copy, 0, NULL, NULL);
}
static int cmp_str(const void *a, const void *b)
@@ -197,7 +216,16 @@ bad_option:
av_tree_enumerate(root, NULL, NULL, print_and_free_summary);
av_tree_destroy(root);
} else {
ret = ff_sws_enum_op_lists(ctx, NULL, src_fmt, dst_fmt, print_ops);
/* Allocate dummy graph and context for ff_sws_compile_pass() */
SwsGraph *graph = ff_sws_graph_alloc();
if (!graph) {
ret = AVERROR(ENOMEM);
goto fail;
}
graph->ctx = ctx;
ret = ff_sws_enum_op_lists(ctx, graph, src_fmt, dst_fmt, print_passes);
ff_sws_graph_free(&graph);
if (ret < 0)
goto fail;
}