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nvenc: Generate bufferingPeriod/pictureTiming SEI

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For some unknown reason enabling these causes proper CBR padding,
so as there are no known downsides just always enable them in CBR mode.

Signed-off-by: Anton Khirnov <anton@khirnov.net>
This commit is contained in:
Timo Rothenpieler 2016-05-11 10:34:31 +02:00 committed by Anton Khirnov
parent a1e215ea01
commit cea1fb854c
1 changed files with 13 additions and 0 deletions
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13
libavcodec/nvenc.c
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@ -57,6 +57,9 @@
#define NVENC_CAP 0x30
#define BITSTREAM_BUFFER_SIZE 1024 * 1024
#define IS_CBR(rc) (rc == NV_ENC_PARAMS_RC_CBR || \
rc == NV_ENC_PARAMS_RC_2_PASS_QUALITY || \
rc == NV_ENC_PARAMS_RC_2_PASS_FRAMESIZE_CAP)
#define LOAD_LIBRARY(l, path) \
do { \
@ -604,6 +607,11 @@ static int nvenc_setup_h264_config(AVCodecContext *avctx)
if (ctx->flags & NVENC_LOSSLESS)
h264->qpPrimeYZeroTransformBypassFlag = 1;
if (IS_CBR(cc->rcParams.rateControlMode)) {
h264->outputBufferingPeriodSEI = 1;
h264->outputPictureTimingSEI = 1;
}
if (ctx->profile)
avctx->profile = ctx->profile;
@ -648,6 +656,11 @@ static int nvenc_setup_hevc_config(AVCodecContext *avctx)
hevc->maxNumRefFramesInDPB = avctx->refs;
hevc->idrPeriod = cc->gopLength;
if (IS_CBR(cc->rcParams.rateControlMode)) {
hevc->outputBufferingPeriodSEI = 1;
hevc->outputPictureTimingSEI = 1;
}
/* No other profile is supported in the current SDK version 5 */
cc->profileGUID = NV_ENC_HEVC_PROFILE_MAIN_GUID;
avctx->profile = FF_PROFILE_HEVC_MAIN;