MBAFF interlace support

[tkernen]

eh? I thought pure video only supported mpeg2 (gpu acceleration). I have pure video and this sucker will not play. Though, I'm running a agp 6800. Do the newer cards support mpeg4 acceleration then?

Tested with PowerDVD 7 and the H.264 support for the ATI Radeon X1x00 series. Works for me, not perfect but I'm using a x1600 and those are "rated" for 720p, I would need a x1900 according to ATI for 1080i/p

[Guest]

eh? I thought pure video only supported mpeg2 (gpu acceleration). I have pure video and this sucker will not play. Though, I'm running a agp 6800. Do the newer cards support mpeg4 acceleration then?

http://www.nvidia.com/page/purevideo_support.html
from there you can Check what you NVIDIA card supports with purevideo.

[Guest]

Dear all,
BBC, Free ... HD tests are bloming with the sports events. The Football WorldCup comming will certainly see the HD boom !

VLC-FreeHD test done on Rolland Garros, has shown that VLC is very power full but required a extremely powerfull machine to run a 1080i deinterlacing because no hardware acceleration is used

My request is to support DXVA so that hadware acceleration technologies like PureVideo for instance will be used when running VLC.

Doing so, we would also benefit from the all hardware features (like deinterlacing) that will be able to run on <3GHz processors.

This is a must do to have high quality for 1080i HD stream on today's machine IMHO.

Best Regards,
TM

[Guest]

Again there are three problems, DXVA is Windows only and there ain't Windows only developers.
And purevideo is pay software. You can call NVIDIA how to get hardware acceleration and they try to headshot you with old riva tnt cards. If you somehow succesfully complete the operation do same for ATI.
Then post those API's or sourcecodes to net. You have something like 2 days to complete your work if you would like to watch first WC match from telly, assuming VLC dev could patch code in a day and you would download nightly build.

In reality, it ain't happening anytime soon, so please don't come here to whine about things that can't happen overnight.

Meanwhile you can try mplayer with
-vfm ffmpeg -lavdopts fast:skiploopfilter=all
commandline parameter.

[Guest]

Yeah, the Planet Earth h264 BBC HD Streams. So far the cyberlink decoder makes the best effort at it (manages about 20fps max so far for me), particularly if you use purevideo and a supported nvidia card (which I don't have unfortunately). I just hope that VLC gets better at it, as I hate mucking about with different players for different video types.

Merrin

[webvan]

Been recording some raw BBCHD streams today directly on my Dreambox or via VLC but they just won't play via VLC or PowerDVD7 although a sample BBCHD sample I downloaded does. Anyone know if the BBC have changed the way they broadcast ?

[dionoea]

VLC 0.8.5 might not be new enough to decode those. Try using this build instead: http://downloads.videolan.org/pub/video ... ng/freehd/

[ConsultPlus]

Seconding this. MBAFF support would be awesome. The only decoders that I'm aware of that currently decode the BBC stream are Elecard and Cyberlink/PowerDVD, both of which are kinda slow.

I ran PowerDVD and VLan: both run into trouble running BBC's 'Planet Earth'. Jumpy video and sound.

System: Videocard NVidia GeForce 6600GT. CPU AMD Athlon 64 3000+ (1.8 Ghz). 1GB DDR-SDRAM memory. HD Seagate Barracuda 7200.10 320GB SATA2 16MB 7200RPM.

Anyone got a tip?

[Guest]

CoreAVC
http://coreavc.corecodec.org/download.html
it ain't free thou...

[kelman4]

Any progress on this? I'm on a mac and there are no commercial MBAFF H264 decoders for macs as far as I can tell so MBAFF VLC is my only hope

[dionoea]

Like in previous message:
Works fine in post 0.8.5 builds. Check a nightly here: http://nightlies.videolan.org

[kelman4]

Thanks for the info.
Which of those builds should I get? Any of them?

EDIT I tried the latest build and it still doesn't work. I'm going to assume it's because my computer's too slow

[1DWA1]

Hi all,

As with previous posters about mac and mbaff playback, I've done my research on the web - visiting core avc, doom9, and the nightly builds/vlc mbaff version etc with playback of the BBCHD broadcast. I have a elgato diversity and can record the signal - but on playback with vlc it stutters.

Was just wondering if anyone knows of any advance in this without me having to resort to adding bootcamp/Windows XP to my mac?

Regards,

[VLC_help]

You can try mplayer.

[1DWA1]

unfortunately have already tried that one...

Hey ho, i have heard the core avc maybe coming to the mac soon - but was hoping vlc would beat it to it by ways of mbaff playback.

My quest continues..!

Cheers

[DJ]

VLC supports MBAFF interlacing. It's PAFF interlacing it doesn't support yet. The question regarding MPlayer was because it also uses ffmpeg to decode h.264.

Support for this (in 720i or 1080i) is still dependent on the speed (power) of your machine as there is not much help from your video card and dual core processors or 64 bit processors. However if your machine is marginal and is skipping frames you might try shutting off the loop filter in preferences.

Preferences -> Input / Codecs -> Other codecs -> FFmpeg, "Skip the loop filter for x264 processing" from the pull down select "All" then press Save and close the player.

[1DWA1]

Thanks, that has helped with playback - but alas... still dropping frames... so it must be my machine - though i've heard core avc has been successful on smooth playback under bootcamp/XP on lower spec machines...

1.66GHz Intel core duo / 2GB 667Mhz SDRAM


Thanks for your help

[DJ]

I use CoreAVC under Windows. There is not allot of difference here once the loop filters have been shut off. Recent discussions on the doom9 forum indicate users that are finding other alternatives that work as well, while CoreAVC continues to try tightening their strangle hold through copy protection for this program. A few users are angry as they can not get updates or do a reinstall if they format their disk. If they manage to hold their customers long term is highly questionable at this juncture considering the update issue and that others are catching up in speed of decode. Seems at the moment quite a few sheep are leaving the fold.

[skadood1]

The above settings change in VLC worked!! I can play nearly all 1080p content that I have downloaded Yay! Thanks sooo much! I have been looking for a solution for about 1 year now... wow so easy. I still cant play a high bit rate BBC HD documentary on China, but that is only one. I can play madagascar 1080p mkv, back to future 1080i TS, shrek 1080p mkv (skipped once), heroes 1080p mkv (FINALLY).

I have a 2.0Ghz Intel Core duo with self-upgraded ram to 1GB. I have always been able to play all 720p, but VLC would crash when skipping around in the timeline of videos or fastforwarding. When I upgraded RAM, this diminished. Also, I found from testing that the mac mini hard drive sometimes cannot keep up with the data rates of HD movies. SO, now I server data off of a linux server via samba shares through a gigabit ethernet line, switch, and NICs on both. Now, I can stream/copy content across the network at up to 36MB/s! The highest I have seen it go while watching a movie was around 20MB/s, but usually at <1MB/s. If you go this gigabit route, make sure to get 1000MB capable server NIC, 1000MB capable router or switch or switch behind router(best), and 1000MB rated ethernet lines.

See my setup details at: http://nickyeates.com/personal/blog/mac ... tpc_review

There are a million options in VLC ffmpeg, all with mouse-over explanations. I am sure that you could enhance the speed by sacrificing quality even more so than just the above settings. Also, I think that upscale or downscale may cause a slight bit of CPU on mac minis cause they have --please stay polite-- graphix chip; maybe try messing with different resolutions if you are pressed for that last bit of CPU power.

Also, I think you can overclock mac minis, and I know for sure that you can upgrade mac mini CPUs to 2.4 Ghz. There are tutorials out there to do that.