Video in Firefox doesn't play after ffmpeg upgrade (Slackware64-14.2)
by icovnik from LinuxQuestions.org on (#5P5T6)
Hello,
Few days ago I upgraded old ffmpeg-3.4.6 to ffmpeg-4.4. After Firefox restart almost all videos stopped to play. Youtube is OK. Sample videos here https://www.learningcontainer.com/mp...iles-download/ are not playable (error: No video with supported format and MIME type found). The same for some videos I recorded myself and uploaded to my cloud. I found out Firefox somehow uses ffmpeg to play videos, but ffmpeg alone plays those videos OK.
Old ffmpeg (static build I believe) was downloaded from Alien Bob's repository few years ago, when I found out I need it to play videos. Current ffmpeg-4.4 & all dependencies installed with packages from slackbuilds.org. All libraries compiled in.
Does anyone have some advice where to look? How to debug video in Firefox? How does it use the ffmpeg to play video? Is there some problem with ffmpeg ver. 4 (since ver. 3 worked)? Or is there some correct way to compile ffmpeg?
FYI I don't use Firefox from Slackware but newest downloaded from Mozilla, currently 91.0.2.
Thank you.
ico
Few days ago I upgraded old ffmpeg-3.4.6 to ffmpeg-4.4. After Firefox restart almost all videos stopped to play. Youtube is OK. Sample videos here https://www.learningcontainer.com/mp...iles-download/ are not playable (error: No video with supported format and MIME type found). The same for some videos I recorded myself and uploaded to my cloud. I found out Firefox somehow uses ffmpeg to play videos, but ffmpeg alone plays those videos OK.
Old ffmpeg (static build I believe) was downloaded from Alien Bob's repository few years ago, when I found out I need it to play videos. Current ffmpeg-4.4 & all dependencies installed with packages from slackbuilds.org. All libraries compiled in.
Does anyone have some advice where to look? How to debug video in Firefox? How does it use the ffmpeg to play video? Is there some problem with ffmpeg ver. 4 (since ver. 3 worked)? Or is there some correct way to compile ffmpeg?
FYI I don't use Firefox from Slackware but newest downloaded from Mozilla, currently 91.0.2.
Thank you.
ico