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avcodec/nvenc: add fractional CQ support
Signed-off-by: Timo Rothenpieler <timo@rothenpieler.org>
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984e2218f2
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18a659d1b6
@ -796,7 +796,12 @@ static av_cold void nvenc_setup_rate_control(AVCodecContext *avctx)
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ctx->encode_config.rcParams.zeroReorderDelay = 1;
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if (ctx->quality)
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ctx->encode_config.rcParams.targetQuality = ctx->quality;
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{
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//convert from float to fixed point 8.8
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int tmp_quality = (int)(ctx->quality * 256.0f);
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ctx->encode_config.rcParams.targetQuality = (uint8_t)(tmp_quality >> 8);
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ctx->encode_config.rcParams.targetQualityLSB = (uint8_t)(tmp_quality & 0xff);
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}
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}
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static av_cold int nvenc_setup_h264_config(AVCodecContext *avctx)
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@ -154,7 +154,7 @@ typedef struct NvencContext
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int nonref_p;
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int strict_gop;
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int aq_strength;
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int quality;
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float quality;
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int aud;
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int bluray_compat;
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int init_qp_p;
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@ -109,7 +109,7 @@ static const AVOption options[] = {
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{ "aq-strength", "When Spatial AQ is enabled, this field is used to specify AQ strength. AQ strength scale is from 1 (low) - 15 (aggressive)",
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OFFSET(aq_strength), AV_OPT_TYPE_INT, { .i64 = 8 }, 1, 15, VE },
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{ "cq", "Set target quality level (0 to 51, 0 means automatic) for constant quality mode in VBR rate control",
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OFFSET(quality), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 51, VE },
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OFFSET(quality), AV_OPT_TYPE_FLOAT, { .dbl = 0.}, 0., 51., VE },
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{ "aud", "Use access unit delimiters", OFFSET(aud), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
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{ "bluray-compat", "Bluray compatibility workarounds", OFFSET(bluray_compat),AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
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{ "init_qpP", "Initial QP value for P frame", OFFSET(init_qp_p), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 51, VE },
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@ -106,7 +106,7 @@ static const AVOption options[] = {
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{ "aq-strength", "When Spatial AQ is enabled, this field is used to specify AQ strength. AQ strength scale is from 1 (low) - 15 (aggressive)",
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OFFSET(aq_strength), AV_OPT_TYPE_INT, { .i64 = 8 }, 1, 15, VE },
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{ "cq", "Set target quality level (0 to 51, 0 means automatic) for constant quality mode in VBR rate control",
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OFFSET(quality), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 51, VE },
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OFFSET(quality), AV_OPT_TYPE_FLOAT, { .dbl = 0.}, 0., 51., VE },
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{ "aud", "Use access unit delimiters", OFFSET(aud), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
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{ "bluray-compat", "Bluray compatibility workarounds", OFFSET(bluray_compat),AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
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{ "init_qpP", "Initial QP value for P frame", OFFSET(init_qp_p), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 51, VE },
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