You can probably follow that chart to convert quite a bit of stuff without ever needing to re-encode. mp4 since the containers are the same, internally, is this correct?Įdit: You can remux webm or matroska or webm like this: gst-launch-1.0 filesrc location=big-buck-bunny_trailer.webm ! matroskademux ! qtmux ! filesink location=bbb.mp4 -e I think you also might be able to just rename the. I just tested that and it seems to work fine on a sample. Could someone give me an ffmpeg command to convert these, using hardware for all the decoding and encoding ffmpeg video-conversion nvidia-geforce h.264 h. In gstreamer I think it would be something like: gst-launch-1.0 filesrc location=video.mov ! qtdemux ! qtmux ! filesink location=filename.mp4 -e I have a whole bunch of video files that I need to convert from h.265 to h.264 (note: yes, I need to downconvert them). I am assuming the first rtsp://whatever is the actual RTSP stream from the camera I want to transcode. Often no need for encoding at all if you’re just changing containers. ffmpeg -i rtsp://whatever -map 0 -c copy -c:v libx264 -preset veryfast -crf 20 -x264opts keyint60:vbv-maxrate4000:vbv-bufsize8000 rtsp://whatever Thank you very much, but I have a question about your syntax.

If the video within is h264 or h265 this should work.

I used to use it on a Pi Zero to remux video streams and it only used about ~10% cpu (and no gpu) for 1080p30 h264 rtsp streams.

ffmpeg will let you use the copy codec to do this as well.

I think you may be able to just remux without a decoder and encoder in there.

Ffmpeg convert h265 to h264