regression: sound sometimes missing on decklink mini monitor 4k
Posted: 14 Jul 2020 12:57
by afriza
Hi,
I am facing sound sometimes missing on decklink device (
"Written only 0 samples out of 1024") when compiling under Linux 18.04 with VLC 3.0.10 and VLC 3.0.11... The problem doesn't exist on VLC 3.0.8 though..
Looking at the repository
https://git.videolan.org/git/vlc.git there is no tags for the 3.0.x releases? how do I bisect the repo?
Re: regression: sound sometimes missing on decklink mini monitor 4k
Posted: 14 Jul 2020 14:43
by afriza
I found
vlc-3.0 repo on github and here is the result of my git-bisect: I don't have the knowledge on how to relate the commit with the problem though.. or maybe my bisecting technique was bad..
Code: Select all
$ git bisect bad
576b4da8d674d8a98dd493e9b343f1875efde047 is the first bad commit
commit 576b4da8d674d8a98dd493e9b343f1875efde047
Author: Thomas Guillem <thomas@gllm.fr>
Date: Tue Nov 26 11:31:45 2019 +0100
core: increase file-caching
Same value than the network one. In order to fix low-fps video with high cpu
count, as decided during the last technical meeting.
cf. background here:
https://mailman.videolan.org/pipermail/vlc-devel/2019-September/127432.html
:040000 040000 729ca99287b919cffa3d9d07c7e85d75df40d11f 6fb2682555d8320a73c5e920fc93752c161337d5 M src
what I did was, for each of the bisect commit, I did:
Code: Select all
./bootstrap
./configure --with-decklink-sdk=$HOME/BMD_SDK/Linux
./compile -j4
sudo make install
# perform testing
sudo make uninstall
git bisect bad|good
Re: regression: sound sometimes missing on decklink mini monitor 4k
Posted: 14 Jul 2020 15:27
by afriza
I have tested 3.0.11 tag without and with reverted 576b4da8d674d8a98dd493e9b343f1875efde047 ... reverting 576b4da8d674d8a98dd493e9b343f1875efde047 fixed the stuttering sound in decklink...
experts, please shed some light...