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nvenc: Allow different const qps for I, P and B frames

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Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
This commit is contained in:
Konda Raju 2017-03-17 09:40:05 +05:30 committed by Luca Barbato
parent ca960161f0
commit 3df77b58e3
1 changed files with 19 additions and 9 deletions
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28
libavcodec/nvenc.c
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@ -511,10 +511,26 @@ static int nvenc_map_preset(NVENCContext *ctx)
static void set_constqp(AVCodecContext *avctx, NV_ENC_RC_PARAMS *rc)
{
NVENCContext *ctx = avctx->priv_data;
rc->rateControlMode = NV_ENC_PARAMS_RC_CONSTQP;
rc->constQP.qpInterB = avctx->global_quality;
rc->constQP.qpInterP = avctx->global_quality;
rc->constQP.qpIntra = avctx->global_quality;
if (ctx->init_qp_p >= 0) {
rc->constQP.qpInterP = ctx->init_qp_p;
if (ctx->init_qp_i >= 0 && ctx->init_qp_b >= 0) {
rc->constQP.qpIntra = ctx->init_qp_i;
rc->constQP.qpInterB = ctx->init_qp_b;
} else if (avctx->i_quant_factor != 0.0 && avctx->b_quant_factor != 0.0) {
rc->constQP.qpIntra = av_clip(rc->constQP.qpInterP * fabs(avctx->i_quant_factor) + avctx->i_quant_offset + 0.5, 0, 51);
rc->constQP.qpInterB = av_clip(rc->constQP.qpInterP * fabs(avctx->b_quant_factor) + avctx->b_quant_offset + 0.5, 0, 51);
} else {
rc->constQP.qpIntra = rc->constQP.qpInterP;
rc->constQP.qpInterB = rc->constQP.qpInterP;
}
} else if (avctx->global_quality >= 0) {
rc->constQP.qpInterP = avctx->global_quality;
rc->constQP.qpInterB = avctx->global_quality;
rc->constQP.qpIntra = avctx->global_quality;
}
}
static void set_vbr(AVCodecContext *avctx, NV_ENC_RC_PARAMS *rc)
@ -575,12 +591,6 @@ static void nvenc_override_rate_control(AVCodecContext *avctx,
switch (ctx->rc) {
case NV_ENC_PARAMS_RC_CONSTQP:
if (avctx->global_quality < 0) {
av_log(avctx, AV_LOG_WARNING,
"The constant quality rate-control requires "
"the 'global_quality' option set.\n");
return;
}
set_constqp(avctx, rc);
return;
case NV_ENC_PARAMS_RC_2_PASS_VBR: