Analogous to the same constant in avfiltergraph and avcodec.
Cf. f599ae88c25.
---
libavfilter/avfilter.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/libavfilter/avfilter.c b/libavfilter/avfilter.c
index 7f94e71fbc..049e4f62ca 100644
--- a/libavfilter/avfilter.c
+++ b/libavfilter/avfilter.c
@@ -652,7 +652,8 @@ static const AVOption avfilter_options[] = {
{ "slice", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AVFILTER_THREAD_SLICE
}, .flags = FLAGS, .unit = "thread_type" },
{ "enable", "set enable expression", OFFSET(enable_str),
AV_OPT_TYPE_STRING, {.str=NULL}, .flags = TFLAGS },
{ "threads", "Allowed number of threads", OFFSET(nb_threads),
AV_OPT_TYPE_INT,
- { .i64 = 0 }, 0, INT_MAX, FLAGS },
+ { .i64 = 0 }, 0, INT_MAX, FLAGS, .unit = "threads" },
+ {"auto", "autodetect a suitable number of threads to use", 0,
AV_OPT_TYPE_CONST, {.i64 = 0 }, .flags = FLAGS, .unit = "threads"},
{ "extra_hw_frames", "Number of extra hardware frames to allocate for the
user",
OFFSET(extra_hw_frames), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX,
FLAGS },
{ NULL },
--
2.43.0
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