On Fri, Jul 22, 2016 at 06:07:37PM -0400, Paul Hentschel wrote: > > I want to pass along some issues I am having with this version that I don't > have with vlc-2.2.3. That version (2.2.3) was built on a separate build > using Qt 5.6 and gcc5.3 (same hardware). This version I built using Qt 5.7 > and gcc6. For video output I am using OpenGL GLX on both builds, but I tried > the others to see if it would solve my issues. > > Here are links to two sample videos for reference. The first (lower > resolution) video plays fine. The second (higher resolution) video plays for > about a second then the screen turns gray and pixelated. Both of these > videos play fine in Parole. > > http://hubblesource.stsci.edu/sources/video/clips/details/images/m84_1.mpg > > http://hubblesource.stsci.edu/sources/video/clips/details/images/m84_2.mpg > > I am also having issues playing a DVD. The video is not smooth. >
LOL. For vlc I have *never* managed to play a DVD correctly (they play for some seconds, pause while the buffer is read from the DVD, repeat) - I posted about that some time in the last 2 months after discovering that even on my haswell i7 this was the case - until then I had assumed my hardware was not good enough. But things are definitely worse with gcc-6. As well as ffplay, I use xine and parole as well as vlc. With gcc-6. my memory says that none of them could play a DVD (well, I don't think I tried with ffplay and I'm not sure if it can play DVDs, it certainly isn't *convenient* for normal use, it's just a test). And with gcc-6, you tube is fine but some local files (MP4, I think, but I might be wrong) had horrible tearing of the image in most players. But ISTR xine would quickly go very dark on mp4 files, while parole seemed to have a lot of visual noise, but vlc seemed to work albeit the UI isn't as nice as in v2. Oh, and for youtube I either watch it in the browser (usually firefox), or I save a local copy with youtube-dl which I think re-encodes it to mp4. Anyway, for those two files (mpeg V1 and mpeg V2 according to mediainfo), first on BLFS-7.9 with what I assume are the versions in the release, on an i3 Sandy Bridge - xine-0.99.9 with xine-lib-1.2.6 : both ok (at native sizes) parole-0.8.1 with gstreamer-1.6.3 : both ok, but they play at close to full screen, so _1 is a bit blocky [ squares ], also only _2 ever shows the duration (21s). vlc-2.2.2 with ffmpeg-2.8.6 : again at native sizes, but here only _1 plays ok, _2 is like watch ing a DVD i.e. it plays for a couple of seconds and then I get the progress bar along the bottom of the w indow w hilst pres umably a buffer fills - that is the first time I've noticed that on a local file with a quiet system, although I've seen stalls when compiling at -j 4 or when linking firefox. And the stalls seem to be repeatable, actually it stalls for a second before playing anything, plays a second, repeats and eventually gets to playing for about 2 seconds at a time. There are several ES_OUT_SET error messages on stderr, eachfollowed by 'ES_OUT_RESET_PCR called'. For vlc I think stderr messages are common. ffplay-2.8.6 : both ok (at native sizes) Second, on LFS from 20160527 (I think BLFS was from a few days later) on the i7 haswell using gcc-6 - xine-0.99.9 with xine-lib-1.2.6 : both ok (at native sizes) parole-0.8.1 with gstreamer-1.8.1 : on this machine they play a bit smaller, perhaps 1024x768, so _1 looks ok. But _2 is a mess of 7 horizontal bars of mostly-white noise, with 7 green bars (one bar of noise, one green bar, repeat). vlc git as in BLFS, with ffmpeg-3.0.2 : _1 plays ok, but I noticed several "ac-tex damaged at X Y" messages. _2 again stalls for about a second, plays at the native size for about one second, then resizes its window to widescreen (same height, I think, but something like a 2.2:1 aspect ratio), and this widescreen window is mostly grey (approx neutral grey like the old cards for taking photo exposure readings) with some white patches and a few dark ones. ffplay-3.0.2 : both ok (at native sizes) I'm not familiar with mpeg V2 videos (most of what I have locally is either mp4, theora, wmv or th e myriad variances of mkv), but I start to wonder if that file is in-spec (because vlc is usually good at playing things, at least in BLFS-7.9). FWIW, both machines were running 4.7.0-rc7 kernels. ĸen -- `I shall take my mountains', said Lu-Tze. `The climate will be good for them.' -- Small Gods -- http://lists.linuxfromscratch.org/listinfo/blfs-dev FAQ: http://www.linuxfromscratch.org/blfs/faq.html Unsubscribe: See the above information page
