From b40dd2fdabaa1ffb24ccf6486dc8a96e84b72c40 Mon Sep 17 00:00:00 2001 From: Alexander Strasser Date: Fri, 7 Aug 2020 21:40:40 +0200 Subject: [PATCH] lavc/snowenc: Expose an option to set the rc_eq expression Snow uses the ratecontrol module, but does not expose a way to set the rc_eq expression. The default expression, set in the ratecontrol module, will always be used. Make it possible to set rc_eq by adding an AVOption to snowenc. The option definition is mostly a copy from the mpegvideo common options definition of rc_eq (libavcodec/mpegvideo.h), with some minor style adjustments to be closer to the other snowenc option initializer expressions. Signed-off-by: Alexander Strasser --- libavcodec/snowenc.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/libavcodec/snowenc.c b/libavcodec/snowenc.c index b1cf1426eeb..16d2b7c302e 100644 --- a/libavcodec/snowenc.c +++ b/libavcodec/snowenc.c @@ -1948,6 +1948,11 @@ static const AVOption options[] = { { "pred", "Spatial decomposition type", OFFSET(pred), AV_OPT_TYPE_INT, { .i64 = 0 }, DWT_97, DWT_53, VE, "pred" }, { "dwt97", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, VE, "pred" }, { "dwt53", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, INT_MIN, INT_MAX, VE, "pred" }, + { "rc_eq", "Set rate control equation. When computing the expression, besides the standard functions " + "defined in the section 'Expression Evaluation', the following functions are available: " + "bits2qp(bits), qp2bits(qp). Also the following constants are available: iTex pTex tex mv " + "fCode iCount mcVar var isI isP isB avgQP qComp avgIITex avgPITex avgPPTex avgBPTex avgTex.", + OFFSET(m.rc_eq), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, VE }, { NULL }, }; -- 2.39.5