This is a post processing BASH / Shell script designed for use with Tvheadend (tvheadend.org) to scan for commercials, transcode to H264 & cut commercials from the H264 file.
Mencoder seems to be dead in the water, and hasn't been in the ubuntu repos for a few versions now.
Any idea as to what to use in its place?
Ffmpeg seems like a logical choice, but it has no EDL support. You can't even specify frames while cutting, but need to provide seconds.
Hello,
not an issue, more an improval idea (you mentioned already in your blog).
perhaps you could use gstreamer in the chain for conversion to h264. For use of the gpu, you first have to give the GPU enough RAM through raspi-config or you will get a strange error message.
I found gstreamer pipelines difficult to handle. I tried to make a tvheadend post processing script with it.
Perhaps the new Rasberry Pi 2 will have enough resources.
#!/bin/sh
#https://tvheadend.org/projects/tvheadend/wiki/Tvheadend_post_recording_scripts
FULL_PATH=$1
PATH_WITHOUT_EXTENSION=$(echo "$FULL_PATH" | sed "s/....$//")
if [ "x$1" = "x" ]; then
echo "wrong command line: convert.sh {full path to file}"
exit
fi
#convert
#gst-launch-1.0 filesrc location="$FULL_PATH" ! decodebin name=demux demux. ! queue ! audioresample ! mux. matroskamux name=mux streamable=true ! filesink location="$PATH_WITHOUT_EXTENSION"_small.mp4 demux. ! queue ! progressreport update-freq=1 ! videoconvert ! omxh264enc target-bitrate=1344000 control-rate=variable ! "video/x-h264,profile=high" ! h264parse ! mux.
#downsample
#gst-launch-1.0 filesrc location="$FULL_PATH" ! decodebin name=demux demux. ! queue ! audioresample ! mux. matroskamux name=mux ! filesink location="$PATH_WITHOUT_EXTENSION"_small.mkv demux. ! queue ! progressreport update-freq=5 ! videoscale ! video/x-raw,width=480,height=320 ! deinterlace ! videoconvert ! omxh264enc target-bitrate=500000 control-rate=variable ! "video/x-h264,profile=high" ! h264parse ! mux.
gst-launch-1.0 filesrc location="$FULL_PATH" ! decodebin name=demux demux. ! queue ! audioresample ! mux. matroskamux name=mux ! filesink location="$PATH_WITHOUT_EXTENSION"_small.mkv demux. ! queue ! progressreport update-freq=5 ! videoscale ! video/x-raw,width=480,height=320 ! videoconvert ! omxh264enc target-bitrate=500000 control-rate=variable ! "video/x-h264,profile=high" ! h264parse ! mux.
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