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add initial QP value options

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Signed-off-by: Diego Biurrun <diego@biurrun.de>
This commit is contained in:
Konda Raju 2017-03-07 12:02:14 +05:30 committed by Diego Biurrun
parent 8a60bba0ae
commit f6790b5e10
4 changed files with 35 additions and 0 deletions
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26
libavcodec/nvenc.c
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@ -519,6 +519,8 @@ static void set_constqp(AVCodecContext *avctx, NV_ENC_RC_PARAMS *rc)
static void set_vbr(AVCodecContext *avctx, NV_ENC_RC_PARAMS *rc)
{
NVENCContext *ctx = avctx->priv_data;
if (avctx->qmin >= 0) {
rc->enableMinQP = 1;
rc->minQP.qpInterB = avctx->qmin;
@ -532,6 +534,30 @@ static void set_vbr(AVCodecContext *avctx, NV_ENC_RC_PARAMS *rc)
rc->maxQP.qpInterP = avctx->qmax;
rc->maxQP.qpIntra = avctx->qmax;
}
if (ctx->init_qp_p >= 0) {
rc->enableInitialRCQP = 1;
rc->initialRCQP.qpInterP = ctx->init_qp_p;
if (ctx->init_qp_i < 0) {
if (avctx->i_quant_factor != 0.0 && avctx->b_quant_factor != 0.0) {
rc->initialRCQP.qpIntra = av_clip(rc->initialRCQP.qpInterP * fabs(avctx->i_quant_factor) + avctx->i_quant_offset + 0.5, 0, 51);
} else {
rc->initialRCQP.qpIntra = rc->initialRCQP.qpInterP;
}
} else {
rc->initialRCQP.qpIntra = ctx->init_qp_i;
}
if (ctx->init_qp_b < 0) {
if (avctx->i_quant_factor != 0.0 && avctx->b_quant_factor != 0.0) {
rc->initialRCQP.qpInterB = av_clip(rc->initialRCQP.qpInterP * fabs(avctx->b_quant_factor) + avctx->b_quant_offset + 0.5, 0, 51);
} else {
rc->initialRCQP.qpInterB = rc->initialRCQP.qpInterP;
}
} else {
rc->initialRCQP.qpInterB = ctx->init_qp_b;
}
}
}
static void set_lossless(AVCodecContext *avctx, NV_ENC_RC_PARAMS *rc)

3
libavcodec/nvenc.h
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@ -183,6 +183,9 @@ typedef struct NVENCContext {
int strict_gop;
int aq_strength;
int quality;
int init_qp_p;
int init_qp_b;
int init_qp_i;
} NVENCContext;
int ff_nvenc_encode_init(AVCodecContext *avctx);

3
libavcodec/nvenc_h264.c
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@ -89,6 +89,9 @@ static const AVOption options[] = {
{ "aq-strength", "When Spatial AQ is enabled, this field is used to specify AQ strength. AQ strength scale is from 1 (low) - 15 (aggressive)", OFFSET(aq_strength), AV_OPT_TYPE_INT, { .i64 = 8 }, 1, 15, VE },
{ "cq", "Set target quality level (0 to 51, 0 means automatic) for constant quality mode in VBR rate control", OFFSET(quality), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 51, VE },
#endif /* NVENCAPI_MAJOR_VERSION >= 7 */
{ "init_qpP", "Initial QP value for P-frames", OFFSET(init_qp_p), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 51, VE },
{ "init_qpB", "Initial QP value for B-frames", OFFSET(init_qp_b), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 51, VE },
{ "init_qpI", "Initial QP value for I-frames", OFFSET(init_qp_i), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 51, VE },
{ NULL }
};

3
libavcodec/nvenc_hevc.c
View File

@ -87,6 +87,9 @@ static const AVOption options[] = {
{ "aq-strength", "When Spatial AQ is enabled, this field is used to specify AQ strength. AQ strength scale is from 1 (low) - 15 (aggressive)", OFFSET(aq_strength), AV_OPT_TYPE_INT, { .i64 = 8 }, 1, 15, VE },
{ "cq", "Set target quality level (0 to 51, 0 means automatic) for constant quality mode in VBR rate control", OFFSET(quality), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 51, VE },
#endif /* NVENCAPI_MAJOR_VERSION >= 7 */
{ "init_qpP", "Initial QP value for P-frames", OFFSET(init_qp_p), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 51, VE },
{ "init_qpB", "Initial QP value for B-frames", OFFSET(init_qp_b), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 51, VE },
{ "init_qpI", "Initial QP value for I-frames", OFFSET(init_qp_i), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 51, VE },
{ NULL }
};