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<blockquote data-quote="hoborg" data-source="post: 651249" data-attributes="member: 77164">Re: SAF v5.00 experimental (based on FFDShow DXVA decoder)He,he, i have completelly reverse experience. Since i moved to GB-PVR, no problems any longer <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin&nbsp; &nbsp; :D" loading="lazy" data-shortname=":D" />You are right. To render subtitles, decoded picture needs to be copied from GPU to memory, render subtitles and send picture back to GPU. This process eat a lot of GPU memory bandwitch and can cause stuttering while FullHD playing on low end GPUs like ION, ATI 3200, nVidia 9400 (and older), etc.Using MePo MPC-HC subtitle engine is recommended instead of SAF one.I have ATI 5450 in my HTPC and there is no such issues. No problem on ATI 4550 too.</blockquote>

[QUOTE="hoborg, post: 651249, member: 77164"] [b]Re: SAF v5.00 experimental (based on FFDShow DXVA decoder)[/b] He,he, i have completelly reverse experience. Since i moved to GB-PVR, no problems any longer :D You are right. To render subtitles, decoded picture needs to be copied from GPU to memory, render subtitles and send picture back to GPU. This process eat a lot of GPU memory bandwitch and can cause stuttering while FullHD playing on low end GPUs like ION, ATI 3200, nVidia 9400 (and older), etc. Using MePo MPC-HC subtitle engine is recommended instead of SAF one. I have ATI 5450 in my HTPC and there is no such issues. No problem on ATI 4550 too. [/QUOTE]

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