diff options
Diffstat (limited to 'localv4ldump')
-rwxr-xr-x | localv4ldump | 119 |
1 files changed, 0 insertions, 119 deletions
diff --git a/localv4ldump b/localv4ldump deleted file mode 100755 index ba4880c..0000000 --- a/localv4ldump +++ /dev/null @@ -1,119 +0,0 @@ -#!/bin/sh -# Copyright © 2012, 2013 Jonas Smedegaard <dr@jones.dk> -# Description: record most possible video data using least CPU -# -# This program is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 3, or (at your option) -# any later version. -# -# This program is distributed in the hope that it will be useful, but -# WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -# General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with this program. If not, see <http://www.gnu.org/licenses/>. -# -# Depends: libav-tools, alsa-utils, v4l-utils -# -# TODO: add --help option -# TODO: make inputs overrideable -# TODO: optionally limit number of inputs -# TODO: make codecs, rates etc. configurable -# TODO: auto-limit number of video-inputs per USB channel -# TODO: include SMTPE channel -# TODO: Check and ask if outfile already exist -# TODO: Add --force option to skip asking for overwriting - -set -e - -#melt cam_Microsoft_LifeCam_Studio.mlt -consumer avformat:x.avi vcodec=ffv1 an=1 - -output="${1:-dump.mkv}" - -# resolve audio inputs: default PCM of all ALSA cards with input devices -ainputs="$(arecord -l | perl -anE '/^card/ and say $F[2]')" -#ainputs="CARD=Generic_1,DEV=0" - -# FIXME: detect and avoid more than one device on same USB channel: -# [video4linux2 @ 0xed7e00] ioctl(VIDIOC_STREAMON): No space left on device -# /dev/video2: No space left on device -# maybe with $(v4l2-ctl --list-devices) -vinputs="$(ls -1 /dev/video*)" -#vinputs="$(ls -1 /dev/video* | grep -v video1)" -#vinputs="/dev/video0 /dev/video1 /dev/video3" -#vinputs="/dev/video0" - -# TODO: probe and optimize V4L settings (highest 16/9 size at >= 20fps -inrate=20 -#inrate=10 -outrate=$inrate # seems this ensures fixed rate when input is flaky - -#vcodec=huffyuv # more common -vcodec=ffvhuff # more compact, supports YV12 colorspace -#vcodec=ffv1 # most compact, supports RGBA colorspace, too CPU-hungry - -acodec=pcm_s16le - -vf="${vf:+$vf }-vf setpts=(RTCTIME-RTCSTART)/(TB*1000000)" # current time -vf="${vf:+$vf }-vf hqdn3d" # high-quality denoise (good for webcams) -font='/usr/share/fonts/truetype/droid/DroidSans.ttf' -#vf="${vf:+$vf }-vf "drawtext=fontfile=$font: timecode='09\:57\:00\:00': r=25: x=(w-tw)/2: y=h-(2*lh): fontcolor=white: box=1: boxcolor=0x00000000@1"}" -#vf="${vf:+$vf }-vf "drawtext=fontfile=DroidSans.ttf:'timecode=09\:57\:00\:00':r=25:x=\(w-tw\)/2:y=h-\(2*lh\):fontcolor=white:box=1:boxcolor=0x00000000@1"}" - -parse_v4l2_formats() { - v4l2-ctl --list-formats-ext -d "$1" | perl -n \ - -e '/^\tIndex\h*:/ and $type=$format=$raw=$size=$speed=undef;'\ - -e '/^\tType\h*: (Video Capture)/ and $type=$1;'\ - -e '/^\tPixel Format: '\''(\w+)'\''( \(compressed\))?/ and $format=$1 and $raw=int(!($2));'\ - -e '/^\t\tSize: Discrete (\d+x\d+)/ and $size=$1;'\ - -e 'next unless ($type and $format and $size);'\ - -e '/^\t\t\tInterval: .* \((\d+)\.\d+ fps\)/ and $speed=$1;'\ - -e 'next unless ($speed >= '$inrate');'\ - -E 'say "$raw $size $format"' \ - | sort -rV -} - -# expand arguments -i=0 -ainargs= -amaps= -for input in $ainputs; do - # TODO: handle varying descriptions (not just pick first entry) - # TODO: handle more descriptions (not just assume stereo) - achannels= - achannelsdesc="$(amixer -c $input | grep '^ Capture channels:' | head -n 1)" - case $achannelsdesc in - *': Mono') - achannels=1 - ;; - esac - ainargs="${ainargs:+$ainargs }-f alsa -ar 44100 ${achannels:+-ac $achannels} -i hw:$input" - amaps="${amaps:+$amaps }-map $i:a" - i=$(expr $i + 1) -done -vinargs= -vmaps= -for input in $vinputs; do - read raw size format dummy <<FORMATS -$(parse_v4l2_formats $input) -FORMATS - case $format in - YUYV) - format=yuyv422 - ;; - MJPG) - format=mjpeg - ;; - esac - [ -n "$format" ] || { echo "Skipping unsuitable input $input"; continue; } - vinargs="${vinargs:+$vinargs }-f video4linux2 -input_format $format ${inrate:+-framerate $inrate }-s $size -i $input" - vmaps="${vmaps:+$vmaps }-map $i:v:0" - i=$(expr $i + 1) -done -voutargs=${vinputs:+-c:v $vcodec $vf ${outrate:+-r $outrate}} -aoutargs=${ainputs:+-c:a $acodec} - -echo avconv -threads auto $ainargs $vinargs $vmaps $amaps $voutargs $aoutargs -y "$output" -exec avconv -threads auto $ainargs $vinargs $vmaps $amaps $voutargs $aoutargs -y "$output" |