xv. Haven't used the decoder for a week or so. FWIW, I think using the decoder is almost dead, unless you have a really slow system that can't cpu-decode mpeg2 (mine is 2.4GHz P4). It is much nicer to have xv-based video. Seeking is smoother, you can use transcoding in Myth, you can play practically all other types of videos including dvds without effort, and things like adjusting the playback speed (like 0.5x-1.5x) work right. The 350 video output is good quality, but I think for most people the actual decoder is not worth the effort.
--- John Harvey <[EMAIL PROTECTED]> wrote: > Are you using the 350 mpeg decoder for livetv or > playing it with the Xv code in myth? > > John > --- [EMAIL PROTECTED] wrote: > > > I just noticed that, regarding comment #1, the > > entire > > video region seems to be displaced upward a litle > > bit, > > clipping a little at the top. The information box > > on > > the OSD is just slightly getting clipped by the > top > > of > > the TV. > > > > --- [EMAIL PROTECTED] wrote: > > > > > OK here's my experience. It's similar to > Lucas's > > > experience. > > > > > > Let me say first, I'm in NTSC-land. And overall > > it > > > looks very nice. Thank you Ian and John for > your > > > great work. > > > > > > 1) First thing I notice is the black bar on the > > > bottom. On my TV it's about 6-7% of the > vertical > > > distance of the screen, across the width of the > > > screen. > > > 2) Live TV video is a little blurry. Close > > > inspection > > > while paused, or while looking at the OSD shows > > that > > > there is some problems with the scanlinens (i.e. > > odd > > > vs. even). Each frame is made up of two > > ghost-lets, > > > vertically displaced by about 2 or so scan lines > > > from > > > each other. It's as if the odd scan line > > > information > > > is being fed to the even rasters, and vice > versa. > > > It > > > also has the effect of making some of on-screen > > > fonts > > > look like they are underlined. I don't see this > > in > > > framebuffer graphics like the MythTV menus. > It's > > > particularly obvious with the OSD graphics. > > > 3) The first time I started live TV, the OSD was > > > displaced to the right of where it's supposed to > > be. > > > > > > OSD elements were running off to the right of > the > > > screen. However, I exited, played something in > > > xine, > > > and went back to live TV and now the OSD > elements > > > are > > > properly centered. Interesting. > > > 4) video in xine is shifted to the left by ~10% > of > > > the > > > screen width, including the OSD elements, > > resulting > > > in > > > a black bar along the right side of the screen. > > > Video > > > aspect ratios do indeed change correctly (yay!), > > > though with a horizontal offset. xine is also > > > showing > > > the vertical scanline stuff mentioned in #2, > > causing > > > somem blurring. > > > 5) I don't see any tearing (stairing?) anymore. > > It > > > may just be in my mind, but the video looks > quite > > a > > > bit smoother. Scratch that. I just saw a > > > commercial > > > that had a lot of flashing in it (black to > white), > > > and > > > half way down the screen you could see where > the > > > frames weren't each fully drawn. It's harder to > > see > > > in regular video though. > > > 6) Again, it may just be in my mind, but when > > there > > > is > > > a lot of action on the screen, there's a > > ghost-like > > > effect where it looks like consecutive frames > are > > > being mixed or blended. Like previous frames > > > "linger" > > > as new frames are drawn. It could be in my > mind, > > > though. > > > 7) Starting live TV and channel changing seems > to > > be > > > occuring a few seconds faster. Definitely a > > > noticeable improvement. > > > 8) After messing around with it for ~30 minutes, > > > including some rewinding and fastforwarding, no > > > crashes yet. > > > 9) When I start live TV it claims that it is > only > > 1s > > > behind in the framebuffer. It used to be I'd > > > generally get about 4s. If I skip backward and > > > forward, it becomes 3s, pretty solid. > > > 10) Xorg is showing about 12% CPU usage during > > video > > > playback. > > > > > > > > > Relevant portion of /var/log/messages is > attached. > > > > > > > > > > > > --- John Harvey <[EMAIL PROTECTED]> > > > wrote: > > > > > > > I'm looking at issues with mythtv now. My > issues > > > are > > > > even worse than this so > > > > I'll try to understand what is happening. > > > > John > > > > > > > > > -----Original Message----- > > > > > From: [EMAIL PROTECTED] > > > > [mailto:ivtv-devel- > > > > > [EMAIL PROTECTED] On Behalf Of > > Lucas > > > > Meijer > > > > > Sent: 26 June 2005 11:29 > > > > > To: [email protected] > > > > > Subject: Re: [ivtv-devel] [PATCH] YUV > scaling > > > > improvements > > > > > > > > > > John Harvey wrote: > > > > > > The attached patch is mostly the work of > Ian > > > > Armstrong and improves the > > > > > > set up of the registers when playing back > > > > various different sized > > > > > registers. > > > > > > > > > > > > This results in improved quality of the > > > picture. > > > > > > > > > > > > Any problems as usual then just let us > know. > > > > This should still work for > > > > > > NTSC users but has only been tested for > PAL. > > > > > > > > > > Heya John, > > > > > > > > > > I tried .3.6r which has this patch. Things > > look > > > > like they're getting > > > > > better. I used to get crashes, but after > > > disabling > > > > VBI using > > > > > > > > > > ivtvctl -x 0 > > > > > > > > > > I haven't seen a crash in the last 20 hours > > > orso. > > > > YUV playback looks > > > > > good, (still needs mpeg decode to > initialize). > > > > > > > > > > MPEG decoding however is having some minor > > > > problems. WHen watching a > > > > > recording in myth: > > > > > > > > > > - whenever the osd is on, a black bar at the > > > > bottom of the screen (over > > > > > the entire width of the screen, about 1/9th > of > > > the > > > > screens height) > > > > > appears, and flickers a bit.. when the osd > > goes > === message truncated === ------------------------------------------------------- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click _______________________________________________ ivtv-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/ivtv-devel
