[libav-devel] [PATCH] lavc/qsvenc: add an option to disable MFE mode

[Zhong Li]

Not convenient if using numerals to set MFE mode. It is ambiguous
and misleading (e.g: user may misunderstand setting mfmode to 1 is to
enable MFE but actually it is to disable MFE, and set it to be 5 or above is meaningless).

MFX_MF_MANUAL hasn't been exposed since it is to be implemented.

Signed-off-by: Zhong Li <***@intel.com>
---
libavcodec/qsvenc_h264.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libavcodec/qsvenc_h264.c b/libavcodec/qsvenc_h264.c
index ae00ff8..2ecdb10 100644
--- a/libavcodec/qsvenc_h264.c
+++ b/libavcodec/qsvenc_h264.c
@@ -94,7 +94,9 @@ static const AVOption options[] = {
{ "aud", "Insert the Access Unit Delimiter NAL", OFFSET(qsv.aud), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE},

#if QSV_HAVE_MF
- { "mfmode", "Multi-Frame Mode", OFFSET(qsv.mfmode), AV_OPT_TYPE_INT, { .i64 = MFX_MF_AUTO }, 0, INT_MAX, VE },
+ { "mfmode", "Multi-Frame Mode", OFFSET(qsv.mfmode), AV_OPT_TYPE_INT, { .i64 = MFX_MF_AUTO }, MFX_MF_DEFAULT, MFX_MF_AUTO, VE, "mfmode"},
+ { "off" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_MF_DISABLED }, INT_MIN, INT_MAX, VE, "mfmode" },
+ { "auto" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_MF_AUTO }, INT_MIN, INT_MAX, VE, "mfmode" },
#endif

{ NULL },