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Questions tagged [transcode]

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103 questions
Newest Active Bountied Unanswered
1 vote
0 answers
70 views

We have a video recording system which is showing some audio/video drift. The solution runs on Amazon Linux 2 in AWS eu-west-3 and is based on 2 ffmpeg-based systemd services. The EC2 is a c5.2xlarge ...
Jean-Michel's user avatar
  • 11
2 votes
0 answers
409 views

Goal I want to generate a single HLS segment (.ts file) from an .mp4 file, given a segment number n, assuming each segment is 4 seconds long (matching -hls_time 4). The goal is for the segment to play ...
Tomer Salton's user avatar
  • 21
3 votes
1 answer
683 views

At this point, I've transcoded dozens if not hundreds of files with FFMPEG, but I have one particular file that's giving me trouble and I can't figure out why. For testing, I'm using a 10 second ...
Keith Stein's user avatar
  • 283
1 vote
1 answer
528 views

I overlay watermark on videos like this: ffmpeg -y -vsync 0 -hwaccel cuda -hwaccel_output_format cuda -i ./input.avi -i ./watermark.png -filter_complex " [0]hwdownload,format=nv12[...
Emmanuel David A's user avatar
  • 63
2 votes
0 answers
126 views

I am trying to transcode a live stream with FFmpeg and I wish to burn dvbsub same time. This process must be CPU friendly so the GPU must do the work, this is the map of stream: Stream #0:1[0xb5f]: ...
gtdorin's user avatar
  • 21
1 vote
0 answers
2k views

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 -...
Deyaa's user avatar
  • 23
0 votes
1 answer
229 views

I don't know much about ffmpeg except for a basic idea about encoding/decoding and a few videos I watched over YouTube about its usage. I also don't have a big background in digital video, I only ...
Deyaa's user avatar
  • 23
0 votes
0 answers
324 views

I'm trying to transcode videos with outdated codecs/containers, mostly .wmv or .avi files. The following ffmpeg (v6.1.1) command works and produces a working .mp4 file that doesn't seem to present any ...
r41n's user avatar
  • 101
0 votes
0 answers
25 views

When I preview an OMF video file in handbreak it plays in full though in low quality. However, the duration shown on the main screen shows a duration of 00:00:00 and when I try to export to mp4 it ...
yehochanan's user avatar
  • 1
0 votes
1 answer
664 views

I'm trying to create chunks of multiple bitrates to play them smoothly across various devices and bandwidth. But the ffmpeg command output is creating green pixelated video. If I remove the -vf flag ...
The Mask's user avatar
  • 101
3 votes
0 answers
936 views

I was trying to stream video with VLC using the very low latency VP9 encoder. Both my OS codec library and VLC player (3.0.16) has been upgraded to the latest version When I select VLC Player > ...
tribbloid's user avatar
  • 141
2 votes
0 answers
706 views

I have a problem with video encoding for HLS stream. I've found that most video players not support frame accurate seeking or pausing at specific frame and they can't really give us the accurate ...
D.Bence's user avatar
  • 35
1 vote
0 answers
552 views

I'm transcoding from udp input to mpegts udp output. After several hours ffmpeg used all ram memory. I don't know where the problem is. Command: ffmpeg -hwaccel vaapi -hwaccel_output_format vaapi -i &...
Technical_Union7716's user avatar
  • 11
1 vote
0 answers
316 views

I just got a new camera that uses IPCM Files for four channel audio 24 bit tracks in the video. Is there a way to BATCH-rewrap those files so that they are readable in Final cut for example. There has ...
user avatar
1 vote
0 answers
557 views

I am using -itsoffset option for delaying the video track of a live RTMP stream by few seconds but the problem is that I must use -c:v libx264 or other codecs, I cannot use -c:v copy, I want to use ...
Muhammad's user avatar
  • 130

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