Videos from YouTube stream very slowly in 2.2.0-pre3

[andy_blah]

After I updated VLC to the latest version on the unstable repos in Debian, I cannot watch YouTube videos anymore as they keep stuttering and loading very slowly (this mostly happens when watching HD videos, this didn't happen before I upgraded though), to a point where the connection drops. HTTP streaming might be affected by this too. Here's how the log looks:

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core debug: net: connecting to r14---sn-c0q7ln7y.googlevideo.com port 80 core debug: connection succeeded (socket = 13) http debug: protocol 'HTTP' answer code 206 http debug: Content-Type: video/mp4 http debug: stream size=80906441,pos=1250884,remaining=79655557 http debug: this frame size=79655557 http debug: Connection: close http debug: Server: gvs 1.0 http debug: trying to seek to 1093302 core debug: net: connecting to r14---sn-c0q7ln7y.googlevideo.com port 80 core debug: connection succeeded (socket = 13) http debug: protocol 'HTTP' answer code 206 http debug: Content-Type: video/mp4 http debug: stream size=80906441,pos=1093302,remaining=79813139 http debug: this frame size=79813139 http debug: Connection: close http debug: Server: gvs 1.0

It keeps repeating the same messages and floods the log window, which didn't happen before when streaming (yes, it was set to Verbosity level 2) . Also the CPU usage is unusual, takes up 20-30% extra per CPU.

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core debug: net: connecting to r4---sn-4g57kuel.googlevideo.com port 80 core debug: connection succeeded (socket = 14) http debug: protocol 'HTTP' answer code 206 http debug: Content-Type: video/mp4 http debug: stream size=53528086,pos=1016739,remaining=52511347 http debug: this frame size=52511347 http debug: Connection: close http debug: Server: gvs 1.0 core debug: Buffering 54% mp4 warning: track[0x2] will be disabled (eof?) core debug: discarded audio buffer core debug: removing module "faad" core debug: killing decoder fourcc `mp4a', 59 PES in FIFO core debug: removing module "samplerate" core debug: removing module "scaletempo" core debug: removing module "float_mixer" core debug: keeping audio output core debug: EOF reached core debug: Stream buffering done (1381 ms in 4882 ms) core debug: Decoder wait done in 0 ms core debug: waiting decoder fifos to empty core debug: waiting decoder fifos to empty core debug: waiting decoder fifos to empty core debug: waiting decoder fifos to empty core debug: waiting decoder fifos to empty core debug: waiting decoder fifos to empty core debug: waiting decoder fifos to empty core debug: waiting decoder fifos to empty core debug: waiting decoder fifos to empty core debug: waiting decoder fifos to empty core debug: waiting decoder fifos to empty core debug: waiting decoder fifos to empty core debug: waiting decoder fifos to empty core debug: waiting decoder fifos to empty core debug: finished input core debug: object waitpipe triggered core debug: removing module "avcodec" avcodec debug: ffmpeg codec (H264 - MPEG-4 AVC (part 10)) stopped core debug: killing decoder fourcc `h264', 0 PES in FIFO core debug: saving a free vout core debug: reusing provided vout qt4 debug: Qt: Fullscreen state changed core debug: removing module "mp4" mp4 debug: freeing all memory core debug: removing module "record" core debug: removing module "http" core debug: Program doesn't contain anymore ES core debug: dead input core debug: changing item without a request (current 0/1) core debug: nothing to play core debug: destroying useless vout core debug: removing module "xcb_glx" core debug: removing module "glx" qt4 debug: IM: Deleting the input core debug: removing module "xdg" qt4 debug: releasing video... qt4 debug: Video is not needed anymore core debug: removing module "freetype" core debug: removing module "yuvp" core debug: removing module "swscale"

Also I noticed that VLC keeps telling me that direct rendering is disabled, how should I do to fix that? I've noticed quite a bit of tearing in the videos so I think that might be liked to this?

[andy_blah]

*bump*
If this doesn't happen with compiled versions of VLC or with VLC packaged on other distros please let me know so I could submit a bug report to the debian package managers.

Also VLC seems to have been updated on the repository (from 2.2.0~pre3-dmo1 to 2.2.0~pre3-dmo2)

[andy_blah]

*bump*

[Rémi Denis-Courmont]

https://forum.videolan.org/viewtopic.php?f=13&t=70719

[andy_blah]

Sorry forgot to mention that I removed the Deb-Multimedia version of VLC, and installed the one on Debian's unstable repos.
https://bugs.debian.org/cgi-bin/bugrepo ... bug=762377

Still the same problem persists.

[null_ptr]

I've encountered a similar issue (also using Debian, testing release) and also after the upgrade to 2.2.0-pre3 I've started to struggle with this problem.

After a little bit of examination it turned out to be a demuxer related problem.
"/usr/lib/vlc/plugins/demux/libmp4_plugin.so" which is used for MP4 videos (that explains why mostly HD videos from YouTube are stuttering) is the source of the problem (at least in my case).

The workaround that worked for me was to simply set the permissions of the above file from "644" to "640" (root as owner/group), so the regular user can't read it (thus VLC won't load it) which will in turn force VLC to use a different demuxer instead.

It's worth to mention that this "bug" doesn't seem to affect MP4 videos that are played from a local source.
Downloading MP4 videos (including the ones from YT that are stuttering) to the hard drive first and then opening them up in VLC manually also solves the problem.

[andy_blah]

Thanks for letting me know of this fix
I sent a bug report to Debian and now it's fixed in 2.2.0-pre4, so you could do an upgrade and it should fix the problem, but it's good to know that it can be fixed in other ways