---
libavcodec/vaapi_encode_mpeg2.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/libavcodec/vaapi_encode_mpeg2.c b/libavcodec/vaapi_encode_mpeg2.c
index fb1ef71fdc..bd754001d5 100644
--- a/libavcodec/vaapi_encode_mpeg2.c
+++ b/libavcodec/vaapi_encode_mpeg2.c
@@ -31,6 +31,7 @@ typedef struct VAAPIEncodeMPEG2Context {
VAAPIEncodeContext common;
// User options.
+ int qp;
int profile;
int level;
@@ -624,6 +625,9 @@ static av_cold int vaapi_encode_mpeg2_init(AVCodecContext
*avctx)
ctx->surface_width = FFALIGN(avctx->width, 16);
ctx->surface_height = FFALIGN(avctx->height, 16);
+ if (priv->qp > 0)
+ ctx->explicit_qp = priv->qp;
+
return ff_vaapi_encode_init(avctx);
}
@@ -643,6 +647,8 @@ static const AVOption vaapi_encode_mpeg2_options[] = {
VAAPI_ENCODE_COMMON_OPTIONS,
VAAPI_ENCODE_RC_OPTIONS,
+ { "qp", "Constant QP (for P-frames; scaled by qfactor/qoffset for I/B)",
+ OFFSET(qp), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 52, FLAGS },
{ "profile", "Set profile (in profile_and_level_indication)",
OFFSET(profile), AV_OPT_TYPE_INT,
{ .i64 = FF_PROFILE_UNKNOWN }, FF_PROFILE_UNKNOWN, 7, FLAGS, "profile" },
--
2.20.1
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