diff options
Diffstat (limited to 'localvideowebencode')
| -rwxr-xr-x | localvideowebencode | 128 |
1 files changed, 50 insertions, 78 deletions
diff --git a/localvideowebencode b/localvideowebencode index 6c5b043..1d1564c 100755 --- a/localvideowebencode +++ b/localvideowebencode @@ -11,10 +11,6 @@ # TODO: offer to skip rendering again if an output file exist already # TODO: support --width and --height (resolving the other part from input/forced aspect ratio) # TODO: support --formats (comma-separated, to allow e.g. excluding webm even if supported) -# TODO: use (openshot and) melt: -# * melt -consumer avformat:outfile.webm properties=consumer/avformat/webm infile.xml -# * melt -consumer avformat:outfile.x264 properties=consumer/avformat/x264-medium-baseline infile.xml -# * melt -consumer avformat:outfile.ogg f=ogg vcodec=libtheora b=1120k acodec=libvorbis aq=25 infile.xml # TODO: add --speech option, using mono, lower audio rate, and (when solved how) speex set -e @@ -23,29 +19,46 @@ PRG=$(basename "$0") showhelp() { cat <<EOF -Usage: $PRG --size SIZE [--profile PROFILE] [--title TITLE] INPUTFILE +Usage: $PRG [OPTION...] [--] INPUTFILE [INPUTFILE...] Encode video file in multiple web-optimized formats, and provide sample html favoring open formats with optional non-JavaScript Flash fallback. -s, --size Output size in WIDTHxHEIGHT or ffmpeg abbreviation like vga qvga qcif hd480 etc. (default: use input size) - -p, --profile Quality profile (lo, hi, lowide, hiwide) - (default: lo) + -a, --aspect Display Aspect Ratio in melt format e.g. @16/9 + (default: no aspect hinting) + -b, --bitrate Bitrate in bytes, optionally ISO appreviated + (default: 768k) + -p, --profile Melt profile like square_ntsc quarter_pal_wide + qcif_15 etc. + (default: none - reuse input profile) + --h264profile MPEG-4 AVC target profile (baseline medium) + (default: baseline) -t, --title Title used in html fallback graphics - (default: basename of input file) + (default: basename of first input file) -h, --help This help text Examples: - $PRG -s qvga -t "Funny guy" myvideo.dv - $PRG -p hiwide -s hd480 -t "Funny guy" myvideo.dv + $PRG -s qvga -t "Funny guy" myvideo.dv outro.dv + $PRG -p sdi_486i_5994 -s hd480 -t "Funny guy" myvideo.dv -Profile "lo" (default) is optimal for 320x240 (qvga). -Profile "hi" is optimal for 640x240 (vga) content. +If multiple input files are provided, they are merged together and +output files are named based on first input file. -NB! Old iPod has 640x480 limit, so use 640x360 (not hd480) with hiwide. +Default options are optimal for 320x240 (qvga) and similar. +Suggested bitrates: -More info: <http://camendesign.com/code/video_for_everybody> + 320x240 (qvga): 768k + 640x480 (vga): 1120k + +NB! Old iPod require baseline encoding and has 640x480 size limit. +Use e.g. quarter_ntsc_wide, svcd_ntsc_wide or svcd_pal_wide (varying in +framerate and Pixel Aspect Ratio) for widescreen material. + +More info: <http://camendesign.com/code/video_for_everybody> + <http://www.streaminglearningcenter.com/> + <http://en.wikipedia.org/wiki/HTML5_video> EOF } @@ -55,14 +68,21 @@ exit1() { exit 1 } +# defaults +bitrate=768k +h264profile=baseline + # parse cmdline options -TEMP="`getopt -s sh -o hs:p:t: -l help,size:,profile:,title: -n "$PRG" -- "$@"`" || exit1 "Internal getopt error." +TEMP="`getopt -s sh -o hs:a:b:p:t: -l help,size:,aspect:,bitrate:,profile:,h264profile,title: -n "$PRG" -- "$@"`" || exit1 "Internal getopt error." eval set -- "$TEMP" while true ; do case "$1" in -h|--help) showhelp; exit;; -s|--size) size="$2"; shift 2;; + -a|--aspect) aspect="$2"; shift 2;; + -b|--bitrate) bitrate="$2"; shift 2;; -p|--profile) profile="$2"; shift 2;; + --h264profile) h264profile="$2"; shift 2;; -t|--title) title="$2"; shift 2;; --) shift; break;; *) exit1 "Internal error resolving options.";; @@ -74,88 +94,40 @@ if [ $# -eq 0 ]; then exit1 "Too few parameters!" fi -if [ $# -gt 1 ]; then - showhelp - exit1 "Too many parameters!" -fi - # input filename (mandatory) -infile="$1"; shift +infile="$1" [ -e "$infile" ] || exit1 "Input file missing!" filebase=$(echo "$infile" | perl -pe 's/\.[^.]*//') -# fallback profile -profile=${profile:-lo} -case "$profile" in - lo) - bitrate=768 - aspect=4:3 - ;; - lowide) - bitrate=768 - aspect=16:9 - ;; - hi) - bitrate=1120 - aspect=4:3 - ;; - hiwide) - bitrate=1120 - aspect=16:9 - ;; -esac - # fallback graphics title title=${title:-$filebase} # TODO: Check and fail if all needed tools are not available -_ffmpeg() { - passes="$1"; shift - ext="$1"; shift - [ ! -f "$filebase.$ext" ] || exit1 "output file \"$filebase.$ext\" already exist. Remove it and try again." - case $passes in - 0) - ffmpeg -i "$infile" $opts "$@" -f "$ext" -y "$filebase.$ext" - ;; - 1) - [ ! -f "$filebase"-*.log ] || exit1 "logfiles already exist. Remove them (or wait for that other process to complete) and try again." - ffmpeg -i "$infile" -pass 1 -passlogfile "$filebase" "$@" -an -f "$ext" -y /dev/null - ;; - 2) - [ -f "$filebase"-*.log ] || exit1 "logfiles missing. Pass 2 cannot succeed without a prior pass 1." - ffmpeg -i "$infile" -pass 2 -passlogfile "$filebase" "$@" -y "$filebase.$ext" - rm "$filebase"-*.log - case $ext in - mp4) - mv "$filebase.$ext" "$filebase.$ext"~ - qt-faststart "$filebase.$ext"~ "$filebase.$ext" - [ -f "$filebase.$ext" ] && rm "$filebase.$ext"~ || exit1 "failed to optimize with qt-faststart." - ;; - esac - ;; - esac -} +# TODO: When verified beneficial, add option real_time=-2 +opts_common="${bitrate:+b=${bitrate}} ${size:+s=$size} ${aspect:+aspect=$aspect}" +opts_audio="ac=2 ar=44100 ab=96k" -opts_common="-threads 0 -b ${bitrate}k ${size:+-s $size} ${aspect:+-aspect $aspect}" -opts_audio="-ac 2 -ar 44100 -ab 96k" -opts_webm="-vcodec libvpx -keyint_min 0 -g 250 -skip_threshold 0" +# bail out (before any expensive tasks) if logfiles exists +[ ! -f x264-*.log* ] || exit1 "logfiles already exist. Remove them (or wait for that other process using them to complete) and try again." ## Theora/Vorbis/Ogg -_ffmpeg 0 ogg $opts_common -vcodec libtheora -acodec libvorbis $opts_audio +melt -consumer avformat:"$filebase.ogg" f=ogg vcodec=libtheora $opts_common acodec=libvorbis aq=25 $opts_audio "$@" ## H.264/AAC/MP4 -_ffmpeg 1 mp4 $opts_common -vcodec libx264 -vpre medium_firstpass -vpre baseline -_ffmpeg 2 mp4 $opts_common -vcodec libx264 -vpre medium -vpre baseline -acodec libvo_aacenc $opts_audio +melt -consumer avformat:/dev/null f=mp4 properties=x264-medium-$h264profile $opts_common pass=1 an=1 fastfirstpass=1 "$@" +melt -consumer avformat:"$filebase.mp4" properties=x264-medium-$h264profile $opts_common pass=2 acodec=libvo_aacenc $opts_audio "$@" +mv "$filebase.mp4" "$filebase.mp4"~ +qt-faststart "$filebase.mp4"~ "$filebase.mp4" +[ -f "$filebase.mp4" ] && rm "$filebase.mp4"~ || exit1 "failed to optimize with qt-faststart." ## VP8/Vorbis/WebM -! ffmpeg -codecs | grep -iw vp8 || webm=yes -[ -z "$webm" ] || _ffmpeg 1 webm $opts_common $opts_webm -[ -z "$webm" ] || _ffmpeg 2 webm $opts_common $opts_webm -acodec libvorbis $opts_audio +# TODO: use two-pass when supported by melt +melt -consumer avformat:"$filebase.webm" properties=webm $opts_common $opts_audio "$@" ## JPEG preview -ffmpegthumbnailer -s0 -i "$filebase.ogg" -o "$filebase.jpg" +ffmpegthumbnailer -s0 -i "$filebase.mp4" -o "$filebase.jpg" # resolve width and height from preview image size=$(jpeginfo "$filebase.jpg" | perl -ane 'print "$F[1]x$F[3]"') |