talksik
41 lines
1.9 KiB
Markdown
41 lines
1.9 KiB
Markdown
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# record mux another example with cli
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```sh
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# mux to file with fake audio + video
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gst-launch-1.0 -e videotestsrc ! x264enc ! mp4mux name=mux ! filesink location="bla.mp4" audiotestsrc ! lamemp3enc ! mux.
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# diff mux than above
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gst-launch-1.0 -vv videotestsrc ! videoconvert ! x264enc ! avimux name=mux ! filesink location="avimux_test.mp4" audiotestsrc ! voaacenc ! mux.^C
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# above but with actual audio src
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gst-launch-1.0 videotestsrc ! x264enc ! mp4mux name=mux ! filesink location="bla.mp4" pulsesrc ! lamemp3enc ! mux.
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# and.... yep now with actual video src
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# audio a little low?
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gst-launch-1.0 -e v4l2src device="/dev/video0" ! videoconvert ! queue ! x264enc tune=zerolatency ! mux. pulsesrc ! queue ! audioconvert ! audioresample ! voaacenc ! aacparse ! qtmux name=mux ! filesink location=test_gstreamer_record.mp4 sync=false
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# same thing but works fine after restart. make sure alsa settings not screwed up tho?
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gst-launch-1.0 -e v4l2src device="/dev/video0" ! videoconvert ! queue ! x264enc tune=zerolatency ! mux. alsasrc ! queue ! audioconvert ! audioresample ! voaacenc ! aacparse ! qtmux name=mux ! filesink location=test.mp4 sync=false
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# WITH vaapih264enc (hw acceleration if hardware + driver support on system)
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# note: weird that we need h264parse maybe because of needed mux sink capabilities
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gst-launch-1.0 -e v4l2src device="/dev/video0" ! videoconvert ! queue ! vaapih264enc ! h264parse ! mux. alsasrc ! queue ! audioconvert ! audioresample ! voaacenc ! aacparse ! qtmux name=mux ! filesink location=test.mp4 sync=false
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```
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# ffmpeg
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```sh
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# video record
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ffmpeg -f v4l2 -framerate 25 -video_size 640_480 -i dev/video0 output.mkv
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# video + audio record to file
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ffmpeg -f alsa -i hw:0 -f video4linux2 -i /dev/video0
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# audio only
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ffmpeg -f alsa -i hw:0 output.mp3
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# another one with encoder set and also using pulse
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ffmpeg -f pulse -ac 2 -i default -f v4l2 -i /dev/video0 -t 00:00:20 -vcodec libx264 record.mp4
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```
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