avcodec/nvenc: Generate bufferingPeriod/pictureTiming SEI

BtbN · BtbN · commit 3a9df7dfec89 · 2016-05-11T10:34:31.000+02:00
For some unknown reason enabling these causes propper CBR padding,
so as there are no known downsides just always enable them in CBR mode.
diff --git a/libavcodec/nvenc.c b/libavcodec/nvenc.c
@@ -796,6 +796,11 @@ static av_cold int nvenc_encode_init(AVCodecContext *avctx)
             if (avctx->codec->id == AV_CODEC_ID_H264) {
                 ctx->encode_config.encodeCodecConfig.h264Config.adaptiveTransformMode = NV_ENC_H264_ADAPTIVE_TRANSFORM_ENABLE;
                 ctx->encode_config.encodeCodecConfig.h264Config.fmoMode = NV_ENC_H264_FMO_DISABLE;
+                ctx->encode_config.encodeCodecConfig.h264Config.outputBufferingPeriodSEI = 1;
+                ctx->encode_config.encodeCodecConfig.h264Config.outputPictureTimingSEI = 1;
+            } else if(avctx->codec->id == AV_CODEC_ID_H265) {
+                ctx->encode_config.encodeCodecConfig.hevcConfig.outputBufferingPeriodSEI = 1;
+                ctx->encode_config.encodeCodecConfig.hevcConfig.outputPictureTimingSEI = 1;
             }
         }
     } else if (avctx->global_quality > 0) {

Original file line number	Diff line number	Diff line change
`@@ -796,6 +796,11 @@ static av_cold int nvenc_encode_init(AVCodecContext *avctx)`
`796`	`796`	`if (avctx->codec->id == AV_CODEC_ID_H264) {`
`797`	`797`	`ctx->encode_config.encodeCodecConfig.h264Config.adaptiveTransformMode = NV_ENC_H264_ADAPTIVE_TRANSFORM_ENABLE;`
`798`	`798`	`ctx->encode_config.encodeCodecConfig.h264Config.fmoMode = NV_ENC_H264_FMO_DISABLE;`
	`799`	`+ ctx->encode_config.encodeCodecConfig.h264Config.outputBufferingPeriodSEI = 1;`
	`800`	`+ ctx->encode_config.encodeCodecConfig.h264Config.outputPictureTimingSEI = 1;`
	`801`	`+ } else if(avctx->codec->id == AV_CODEC_ID_H265) {`
	`802`	`+ ctx->encode_config.encodeCodecConfig.hevcConfig.outputBufferingPeriodSEI = 1;`
	`803`	`+ ctx->encode_config.encodeCodecConfig.hevcConfig.outputPictureTimingSEI = 1;`
`799`	`804`	`}`
`800`	`805`	`}`
`801`	`806`	`} else if (avctx->global_quality > 0) {`