Reply to thread

Message

<blockquote data-quote="aphilgr1" data-source="post: 59745" data-attributes="member: 19500">First of all even if the resize button in ffdshow is turned to off, the acpect ratio settings still functions so go there and select no AR correction.Second, you can only get a good picture with ffdshow Lanczos resize if your source is film based where simple weaving (combining) the odd and even fields of film content is enough. But is your source is video, the ffdshow/lanczos does not de-interlace the image properly. If you add a de-interlacing proccess in the chain, then your CPU goes to the ceiling and video is choppy. The best workaround is to use a hardware accelerated video decoder (without ffdshow since it bypasses acceleration) and VMR9 renderer. Tou can also try the free dscaler mpeg decoder that gives a very crisp image. It is a software decoder without acceleration but using the NV12 out mode with VMR9, should enable the advanced video decoding capabilities of your graphic card like pure video for nvidia 6+, or AVIVO for latest ATIsThird, if you live in a PAL country, you need 50Hz out to enjoy smooth, tearless video. Use Powerstrip for best resultsAs far as scaling is concerned, remember that your VGA card will scale everything to the selected output resolution. Even if you set ffdshow resize to 1920X1080, the decoder feeds the card with this signal which is then scaled down to the selected output res. Furthermore, whatever the VGA out, your TV's internal scaler will scale everything to your panel's native resolution. Do not hesitate to test your TV set with a standard HTDV resolution like 1280X720p@60Hz (or 50Hz for PAL) or even 1080i@30Hz (or 25 for PAL).&nbsp; Although you get no 1:1 pixel mapping, You might be surprized by the results. It depends on your TV's internal scaler behaviour</blockquote>

[QUOTE="aphilgr1, post: 59745, member: 19500"] First of all even if the resize button in ffdshow is turned to off, the acpect ratio settings still functions so go there and select no AR correction. Second, you can only get a good picture with ffdshow Lanczos resize if your source is film based where simple weaving (combining) the odd and even fields of film content is enough. But is your source is video, the ffdshow/lanczos does not de-interlace the image properly. If you add a de-interlacing proccess in the chain, then your CPU goes to the ceiling and video is choppy. The best workaround is to use a hardware accelerated video decoder (without ffdshow since it bypasses acceleration) and VMR9 renderer. Tou can also try the free dscaler mpeg decoder that gives a very crisp image. It is a software decoder without acceleration but using the NV12 out mode with VMR9, should enable the advanced video decoding capabilities of your graphic card like pure video for nvidia 6+, or AVIVO for latest ATIs Third, if you live in a PAL country, you need 50Hz out to enjoy smooth, tearless video. Use Powerstrip for best results As far as scaling is concerned, remember that your VGA card will scale everything to the selected output resolution. Even if you set ffdshow resize to 1920X1080, the decoder feeds the card with this signal which is then scaled down to the selected output res. Furthermore, whatever the VGA out, your TV's internal scaler will scale everything to your panel's native resolution. Do not hesitate to test your TV set with a standard HTDV resolution like 1280X720p@60Hz (or 50Hz for PAL) or even 1080i@30Hz (or 25 for PAL). Although you get no 1:1 pixel mapping, You might be surprized by the results. It depends on your TV's internal scaler behaviour [/QUOTE]

Verification