All Questions
519
questions
0
votes
0
answers
6
views
video logo clock ffmpeg
with the codes I created myself, the time setting does not appear. Only the screw logo and the movie name appear. I could not make this time setting. Are there any friends who can help me?
ffmpeg -i ...
- 1
1
vote
0
answers
45
views
ffmpeg doesn't have access to qsv nor vulkan
I'm running gentoo, and I have media-libs/oneVPL-intel-gpu installed, and latest mesa drivers, and intel gmm, however, qsv refuses to transcode and gives me the following error everytime
ffmpeg -...
- 11
1
vote
1
answer
72
views
How to merge all mp3 files located in the same directory?
The command below used to work but stopped around ubuntu/kubuntu 20.04.
ls *.mp3 | sed -e "s/\(.*\)/file '\1'/" | ffmpeg -protocol_whitelist 'file,pipe' -f concat -i - -c copy output.mp3
...
- 11
0
votes
0
answers
44
views
av1_vaapi ffmpeg throws error on last frame of video
I've been using ffmpeg and vaapi to transcode video files, it has been working great except for one group of video which has been throwing the error
[vf#0:0 @ 0x5d37f5dd6dc0] Reconfiguring filter ...
0
votes
0
answers
75
views
FFMPEG HEVC NVENC (yuv420)p10le at 800Mbps not encoding
I'm working on a large immersive project where the clients have requested H.265 media at 800Mbps (requires level 6.2). Due to the hardware used (I believe it's AvoLites based) for playback media ...
1
vote
1
answer
189
views
Install newest FFmpeg version on Ubuntu?
I cannot, for the life of me, figure out how to get a non-depreciated version of FFmpeg on an Ubuntu installed.
(Side note: I'm using crostini)
I tried following FFmpeg's docs on getting all the ...
- 113
1
vote
0
answers
99
views
ffmpeg extremely slow HEVC without any major changes in the system
I have the same dedicated NAS machine for a while now with AMD Ryzen 7 3700X 8-Core it's not the strongest but more than enough for my home NAS usage.
I also use the same machine to re-encode h264 and ...
- 379
0
votes
1
answer
156
views
ffmpeg fetching PTS/DTS for data packets incorrectly
I have captured a transport stream through TSP command
Command: tsp -I ip port --source ip -O file stream_capture1.ts
then using ffprobe, below is the output which is capturing correct stream
Input #0,...
0
votes
0
answers
48
views
Why does FFmpeg encoding stall on Ubuntu with DVD video file?
I've encountered a challenging issue while using FFmpeg on Ubuntu to encode a DVD video file contained in a .bin format. Despite various attempts (also employing vlc or bounting converted .iso), ...
- 821
0
votes
0
answers
155
views
ffplay hwaccel mjpeg playback
TL;DR: How can I play MJPEG stream from my WebCAM/HDMI Capture device via FFPLAY with hardware acceleration on Ubuntu 22.04 ?
Long Description:
I have some cheap HDMI capture devices that can output ...
0
votes
2
answers
203
views
Adaptive streaming to rtsp relay
I have a camera at /dev/video4 under linux, and I want to stream this to a mediamtx server.
I am able to do that locally using ffmeg with the following command:
ffmpeg -re -i /dev/video4 -f rtsp -...
- 11
0
votes
1
answer
37
views
How to use ffmpeg speedup video specific time range in one line ffmpeg cli
I try following splited cli, they work well
ffmpeg -i "$input_file" -filter_complex "[0:v]trim=start=0:end=10,setpts=PTS/10[v1];[0:a]atrim=start=0:end=10,asetpts=PTS/10[a1]" -map &...
- 101
1
vote
1
answer
186
views
"-vf crop" doesn't work on FFMpeg hevc_nvenc
This command line downscales fine my 4k video:
$ ffmpeg -vsync 0 -hwaccel cuda -hwaccel_output_format cuda -i input_video.mkv -vf scale_cuda=1920:1080:interp_algo=bicubic -c:v hevc_nvenc -preset slow -...
- 67
1
vote
0
answers
165
views
"-pix_fmt p010le" and "-pix_fmt yuv420p10le" doesn't work on FFMpeg hevc_nvenc
This command line works fine:
$ ffmpeg -vsync 0 -hwaccel cuda -hwaccel_output_format cuda -i input_video.mkv -vf scale_cuda=720:404 -c:v hevc_nvenc -preset p7 -rc vbr -rc-lookahead 20 -b:v 2000k -...
- 67
0
votes
0
answers
304
views
FFmpeg: format error when trying to use hardware scale_npp filter
I have CUDA installed on Ubuntu 22.04LTS with NVidia Geforce graphic card. I am currently trying to capture the full desktop by running this command
ffmpeg -y -hide_banner \
-hwaccel cuda \
-f ...
- 711