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  1. #!/bin/sh
  2. # Copyright © 2010-2014 Jonas Smedegaard <dr@jones.dk>
  3. # Description: Recode a video into web-optimized format(s)
  4. #
  5. # This program is free software; you can redistribute it and/or modify
  6. # it under the terms of the GNU General Public License as published by
  7. # the Free Software Foundation; either version 3, or (at your option)
  8. # any later version.
  9. #
  10. # This program is distributed in the hope that it will be useful, but
  11. # WITHOUT ANY WARRANTY; without even the implied warranty of
  12. # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  13. # General Public License for more details.
  14. #
  15. # You should have received a copy of the GNU General Public License
  16. # along with this program. If not, see <http://www.gnu.org/licenses/>.
  17. #
  18. # Depends: libav-tools melt mediainfo ffmpegthumbnailer
  19. #
  20. # TODO: offer to skip rendering again if an output file exist already
  21. # TODO: support --width and --height (resolving the other part from input/forced aspect ratio)
  22. set -e
  23. PRG=$(basename "$0")
  24. showhelp() {
  25. cat <<EOF
  26. Usage: $PRG [OPTION...] [--] [ARG=VALUE...] INPUTFILE... [ARG=VALUE...]
  27. Encode video file in multiple web-optimized formats, and provide sample
  28. html favoring open formats with optional non-JavaScript Flash fallback.
  29. --video Video style:
  30. ref-bpp
  31. talkinghead 0.1
  32. action 0.15
  33. (default: none)
  34. -p, --profile Video format - size with optional rate suffix,
  35. delimited by @ (except for widescreen labels):
  36. e.g. 848x480@25 480p25 wvga@25
  37. (default: none)
  38. -s, --size: Video frame size:
  39. [modulus 16]
  40. 320x240 qvga
  41. 640x480 vga 480p 848x480 wvga
  42. 576p 1024x576 wsvga
  43. 1024x768 xga hd 720p 1280x720 wxga
  44. [modulus 8]
  45. 240p 424x240 wqvga
  46. 480x360 hvga nhd 360p 640x360
  47. 800x600 svga
  48. (default: use input size)
  49. -a, --aspect Display Aspect Ratio in melt format e.g. @16/9
  50. (default: no aspect hinting)
  51. -r, --rate Video framerate - integer or fraction:
  52. e.g. 15 1001/24000 25 1001/30000
  53. (default: use input framerate)
  54. --refbpp Reference bits-per-pixel (relative to 360p30),
  55. for computing average bitrate when not fixed.
  56. (default: 0.12)
  57. -b, --bitrate Fixed video bitrate in bytes: e.g. 768k 1M
  58. (default: none - use variable bitrate)
  59. --formats Containers and codecs to use (comma-sparated):
  60. container video codec audio codec
  61. ogg Ogg Theora Vorbis
  62. webm WebM VP8 Vorbis
  63. vp9 WebM VP9 Opus
  64. mp4 MPEG-4 H.264 AAC
  65. (default: webm,vp9,mp4)
  66. --audio Audio style:
  67. channels limit
  68. music max 2
  69. hqspeech 1
  70. speech 1 X
  71. silence 0
  72. (default: none - use input channel count)
  73. --audioprefilter Add melt audio filter before loudness.
  74. --loudness Add EBU R128 loudness filter.
  75. --loudness-results Add EBU R128 loudness filter, applying
  76. precomputed analysis results.
  77. (default: none - compute results on-the-fly)
  78. --filter Add melt filter (applied to all input files)
  79. --stem Stem of output filenames, optionally with path
  80. (default: basename of last input file)
  81. -t, --title Title used in html fallback graphics
  82. (default: stem)
  83. --sample Create only a 150 frames long sample.
  84. --sample-start Create sample, starting at a specific frame.
  85. (default: start at first frame)
  86. --sample-length Create sample, of specified length in frames.
  87. (default: 150 frames - i.e. approx. 5s)
  88. -h, --help This help text
  89. Examples:
  90. $PRG -s qvga -t "Funny guy" intro.dv myvideo.dv
  91. $PRG -p 480p --stem funny --filter "grain noise=20" myvideo.dv
  92. Options before input files are passed to melt producer, and after to
  93. melt avformat consumer.
  94. Hints:
  95. * Use square-pixel max. 480 width (vga 480p) for widest compatibility.
  96. * Use a modulus 16 profile (qvga vga 480p 720p) for best compression.
  97. * Try lower reference bits-per-pixel until visual quality is affected.
  98. * Raise reference bits-per-pixel if needed, but no higher than 0.2.
  99. (you can inspect actual bits-per-pixel and bitrate with mediainfo)
  100. More info:
  101. <http://camendesign.com/code/video_for_everybody>
  102. <http://www.streaminglearningcenter.com/articles/configuring-your-streaming-video-(for-newbies).html>
  103. <http://en.wikipedia.org/wiki/HTML5_video>
  104. <http://www.penguinproducer.com/2012/01/ladspa-noise-removal/>
  105. <http://www.internetmarketingnotes.com/2010/07/free-embeddable-flash-video-flv-players-for-commercial-use/>
  106. EOF
  107. }
  108. exit1() {
  109. response="${1:+Error: }${1:-Internal error!}"
  110. echo >&2 "$response"
  111. exit 1
  112. }
  113. # defaults
  114. formats=webm,vp9,mp4
  115. samplestart=0
  116. samplelength=150
  117. # parse cmdline options
  118. TEMP="`getopt -s sh -o hp:s:a:r:b:t: -l help,profile:,size:,aspect:,rate:,video:,refbpp:,bitrate:,formats:,audio:,audioprefilter:,loudness,loudness-results:,filter:,stem:,title:,sample,sample-start:,sample-length: -n "$PRG" -- "$@"`" || exit1 "Internal getopt error."
  119. eval set -- "$TEMP"
  120. while true ; do
  121. case "$1" in
  122. -h|--help) showhelp; exit;;
  123. -p|--profile) profile="$2"; shift 2;;
  124. -s|--size) size="$2"; shift 2;;
  125. -a|--aspect) aspect="$2"; shift 2;;
  126. -r|--rate) framerate="$2"; shift 2;;
  127. --video) video="$2"; shift 2;;
  128. --refbpp) refbpp="$2"; shift 2;;
  129. -b|--bitrate) bitrate="$2"; bitrate_fixed=yes; shift 2;;
  130. --formats) formats="$2"; shift 2;;
  131. --audio) audio="$2"; shift 2;;
  132. --audioprefilter) audioprefilters="${audioprefilters:+$audioprefilters }-filter $2"; shift 2;;
  133. --loudness) loudness=yes; shift;;
  134. --loudness-results) loudness=yes; loudness_results="$2"; shift 2;;
  135. --filter) filters="${filters:+$filters }-filter $2"; shift 2;;
  136. --stem) stem="$2"; shift 2;;
  137. -t|--title) title="$2"; shift 2;;
  138. --sample) sample=yes; shift;;
  139. --sample-start) sample=yes; samplestart="$2"; shift 2;;
  140. --sample-length) sample=yes; samplelength="$2"; shift 2;;
  141. --) shift; break;;
  142. *) exit1 "Internal error resolving options.";;
  143. esac
  144. done
  145. # Resolve if melt is version 0.9.2 or newer
  146. # TODO: drop when melt 0.9.2 is stable
  147. melt_recent=$(melt -query filter=loudness | grep -qi R128 && echo yes)
  148. while [ $# -gt 0 ] ; do
  149. case "$1" in
  150. *=*) _melt_in="${_melt_in:+$_melt_in }$1"; shift;;
  151. *) break;;
  152. esac
  153. done
  154. while [ $# -gt 0 ] ; do
  155. case "$1" in
  156. *=*) _melt_out="${_melt_out:+$_melt_out }$1"; shift;;
  157. *) infiles="${infiles:+$infiles }$1"; shift;;
  158. esac
  159. done
  160. if [ -z "$infiles" ]; then
  161. showhelp
  162. exit1 "Too few parameters!"
  163. fi
  164. # input filename (mandatory)
  165. infile_first=$(perl -e 'print pop @ARGV' $infiles)
  166. [ -e "$infile_first" ] || exit1 "Input file missing!"
  167. # resolve stem and title (if not explicitly set)
  168. stem=${stem:-$(basename "$infile_first" | perl -pe 's/\.[^.]*//')}
  169. title=${title:-$stem}
  170. case "$profile" in
  171. *@*)
  172. while read s r foo; do
  173. size="${size:-$s}"
  174. framerate="${framerate:-$r}"
  175. done << EOF
  176. $(echo "$profile" | perl -F@ -anE 'say join " ", @F')
  177. EOF
  178. ;;
  179. *p*)
  180. while read s r foo; do
  181. size="${size:-${s}p}"
  182. framerate="${framerate:-$r}"
  183. done << EOF
  184. $(echo "$profile" | perl -Fp -anE 'say join " ", @F')
  185. EOF
  186. ;;
  187. *)
  188. size="$profile"
  189. ;;
  190. esac
  191. case "$size" in
  192. qvga) size=320x240;;
  193. hvga) size=480x360;;
  194. vga) size=640x480;;
  195. svga) size=800x600;;
  196. xga) size=1024x768;;
  197. 240p|wqvga) size=424x240;;
  198. 360p|nhd) size=640x360;;
  199. 480p|wvga) size=848x480;;
  200. 576p|wsvga) size=1024x576;;
  201. 720p|wxga|hd) size=1280x720;;
  202. esac
  203. if [ -n "$size" ]; then
  204. while read w h foo; do
  205. width="${width:-$w}"
  206. height="${height:-$h}"
  207. done << EOF
  208. $(echo "$size" | perl -Fx -anE 'say join " ", @F')
  209. EOF
  210. if [ -z "$width" ] || [ -z "$height" ]; then
  211. exit1 "Failed to parse size \"$size\"."
  212. fi
  213. fi
  214. case "$framerate" in
  215. */*)
  216. while read d n foo; do
  217. framerate_den="${framerate_den:-$d}"
  218. framerate_num="${framerate_num:-$n}"
  219. done << EOF
  220. $(echo "$framerate" | perl -Fx -anE 'say join " ", @F')
  221. EOF
  222. ;;
  223. ?*)
  224. framerate_den=1
  225. framerate_num="$framerate"
  226. ;;
  227. esac
  228. while read w h r foo; do
  229. width_in="${width_in:-$w}"
  230. height_in="${height_in:-$h}"
  231. framerate_in="${framerate_in:-$r}"
  232. done << EOF
  233. $(mediainfo --Inform="Video;%Width% %Height% %FrameRate%" "$infile_first")
  234. EOF
  235. case "$video" in
  236. talkinghead)
  237. refbpp="${refbpp:-0.1}"
  238. x264tune=film
  239. ;;
  240. action)
  241. refbpp="${refbpp:-0.15}"
  242. x264tune=film
  243. ;;
  244. '')
  245. refbpp="${refbpp:-0.12}"
  246. ;;
  247. *) exit1 "Unknown video style \"$video\".";;
  248. esac
  249. for format in $(echo "$formats" | sed -e 's/,/ /g'); do
  250. case $format in
  251. ogg) ogg=yes;;
  252. mp4) mp4=yes;;
  253. webm) webm=yes;;
  254. vp9) vp9=yes;;
  255. *) exit1 "Unknown format \"$format\".";;
  256. esac
  257. done
  258. _width="${width:-$width_in}"
  259. _height="${height:-$height_in}"
  260. if [ -n "$_width" ] && [ -n "$_height" ]; then
  261. _pixels="$(($_width*$_height))"
  262. fi
  263. _frames="${framerate:-$framerate_in}"
  264. webmpreset=360p
  265. if [ -n "$_pixels" ] && [ $_pixels -ge $((1024*768)) ]; then
  266. webmpreset=720p
  267. if [ -n "$_frames" ] && [ $_frames -gt 40 ]; then
  268. webmpreset=720p50_60
  269. fi
  270. fi
  271. # compute average bitrate from reference data and "power of .75" rule
  272. bitrate_vp9="$bitrate"
  273. if [ -z "$bitrate" ] && [ -n "$_pixels" ] && [ -n "$_frames" ]; then
  274. bitrate=$(perl -E '$refsize=640*360;' \
  275. -E "say int( +(($_pixels/\$refsize)**0.75*\$refsize*$_frames*$refbpp) )")
  276. bitrate_vp9=$(perl -E "say int( $bitrate/2 )") #"
  277. fi
  278. # default per-codec-channel bitrates
  279. bitrate_vorbis=64
  280. bitrate_opus=64
  281. bitrate_aac=96
  282. case "$audio" in
  283. music)
  284. channels=2
  285. ;;
  286. hqspeech)
  287. channels=1
  288. bitrate_vorbis=48
  289. bitrate_opus=32
  290. bitrate_aac=64
  291. ;;
  292. speech)
  293. channels=1
  294. bitrate_vorbis=48
  295. bitrate_opus=32
  296. bitrate_aac=64
  297. compress=yes
  298. [ -z "$melt_recent" ] || _melt_loudness="$loudness_results"
  299. limit=yes
  300. ;;
  301. silence)
  302. channels=0
  303. ;;
  304. '')
  305. channels=$(avprobe -v warning -show_streams "$infile_first" | perl -ne 's/channels=// and print $_')
  306. ;;
  307. *) exit1 "Unknown audio style \"$audio\".";;
  308. esac
  309. [ $channels -le 2 ] || channels=2
  310. [ $channels -gt 0 ] || channels=
  311. # TODO: Check and fail if all needed tools are not available
  312. # TODO: When verified beneficial, add option real_time=-2
  313. melt="melt -progress"
  314. _melt_in="${_melt_in:+$_melt_in }${sample:+in=${samplestart:-0} out=$((${samplestart:-0} + samplelength))}"
  315. _melt_video="progressive=1${framerate:+ frame_rate_den="$framerate_den" frame_rate_num="$framerate_num"}${size:+ s=${width:+$width}x${height:+$height}}${aspect:+ aspect=$aspect}"
  316. _melt_ogg="$_melt_video f=ogg vcodec=libtheora${bitrate:+ vb=$bitrate}${bitrate_fixed:- qscale=5}"
  317. _melt_h264="$_melt_video f=mp4 vcodec=libx264${bitrate_fixed:+ vb=$bitrate} threads=0 movflags=+faststart vpre=medium vprofile=baseline${x264tune:+ tune=$x264tune}${bitrate_fixed:- crf=23}"
  318. _melt_webm="$_melt_video f=webm vcodec=libvpx${bitrate:+ vb=$bitrate} vpre=libvpx-$webmpreset${bitrate_fixed:- crf=10} cpu-used=3"
  319. # CRF ignored with libvpx 1.3
  320. _melt_vp9="$_melt_video f=webm vcodec=libvpx-vp9${bitrate_vp9:+ vb=$bitrate_vp9} vpre=libvpx-$webmpreset${bitrate_fixed:- crf=10} cpu-used=5"
  321. _melt_audio="${channels:+ac=$channels}"
  322. # limit (i.e. avoid peaks "clipping")
  323. _melt_postfilters_audio="${limit:+-filter ladspa.1077}"
  324. _melt_vorbis="$_melt_audio acodec=libvorbis ab=$(($channels*$bitrate_vorbis))k"
  325. _melt_opus="$_melt_audio acodec=libopus ab=$(($channels*$bitrate_opus))k"
  326. _melt_aac="$_melt_audio acodec=aac ab=$(($channels*$bitrate_aac))k"
  327. avconv="avconv -threads auto -y"
  328. _avconv_vp8="-c:v libvpx${bitrate:+ -b:v $bitrate} -pre:v libvpx-$webmpreset${bitrate_fixed:- -crf 10} -cpu-used 3"
  329. _avconv_vp9="-c:v libvpx-vp9${bitrate_vp9:+ -b:v $bitrate_vp9} -pre:v libvpx-$webmpreset${bitrate_fixed:- -crf 10} -cpu-used 5"
  330. # resolve EBU R128 audio normalizing
  331. # TODO: normalize each infile separately when xml fed as infile keeps sync
  332. if [ -n "$loudness" ] && [ -z "$_melt_loudness" ]; then
  333. $melt -group $_melt_in $infiles -group $audioprefilters -filter loudness -consumer xml:$stem.xml $_melt_audio video_off=1 all=1
  334. _melt_loudness="$(perl -ne 'm!<property name="results">([^<]+)</property>! and print $1' $stem.xml)"
  335. fi
  336. if [ -n "$mp4" ] && [ -n "$bitrate_fixed" ]; then
  337. $melt -group $_melt_in $infiles -group $filters \
  338. -consumer avformat:/dev/null pass=1 fastfirstpass=1 an=1 audio_off=1 $_melt_h264 $_melt_out
  339. fi
  340. if [ -n "$webm$vp9" ]; then
  341. $melt -group $_melt_in $infiles -group $filters \
  342. -consumer avformat:pipe:1 $_melt_video f=yuv4mpegpipe pix_fmt=yuv420p \
  343. | $avconv -i pipe:0 \
  344. ${webm:+-f rawvideo $_avconv_vp8 -an -pass 1 -passlogfile ${stem}_vp8 /dev/null} \
  345. ${vp9:+-f rawvideo $_avconv_vp9 -an -pass 1 -passlogfile ${stem}_vp9 /dev/null}
  346. [ -z "$webm" ] || mv -f ${stem}_vp8-*.log ${stem}_vp8_2pass.log
  347. [ -z "$vp9" ] || mv -f ${stem}_vp9-*.log ${stem}_vp9_2pass.log
  348. fi
  349. $melt -group $_melt_in $infiles \
  350. -group ${channels:+$audioprefilters${_melt_loudness:+ -filter loudness results="$_melt_loudness"}} \
  351. $filters${channels:+ $_melt_postfilters_audio} \
  352. ${ogg:+-consumer avformat:$stem.ogv $_melt_ogg $_melt_vorbis $_melt_out} \
  353. ${mp4:+-consumer avformat:$stem.mp4${bitrate_fixed:+ pass=2} $_melt_h264 $_melt_aac $_melt_out} \
  354. ${webm:+-consumer avformat:$stem.webm $_melt_webm$ pass=2 passlogfile=${stem}_vp8 $_melt_vorbis $_melt_out} \
  355. ${vp9:+-consumer avformat:${stem}_vp9.webm pass=2 passlogfile=${stem}_vp9 $_melt_vp9 $_melt_opus $_melt_out}
  356. if [ -n "$mp4" ] && [ -z "$melt_recent" ]; then
  357. mv "$stem.mp4" "$stem.mp4"~
  358. qt-faststart "$stem.mp4"~ "$stem.mp4"
  359. [ -f "$stem.mp4" ] && rm "$stem.mp4"~ || mv -f "$stem.mp4"~ "$stem.mp4"
  360. fi
  361. # cleanup audio normalize hinting
  362. rm -f $stem.xml
  363. ## JPEG preview
  364. ffmpegthumbnailer -s0 -i "$stem.mp4" -o "$stem.jpg"
  365. __width="${_width:+ width=\"$_width\"}"
  366. __height="${_height:+ height=\"$_height\"}"
  367. # Flash object needs extra space for controllers
  368. __heightplus=${_height:+ height=\"$(($_height+4))\"}
  369. _source_ogg="<source src=\"$stem.ogv\" type=\"video/ogg\" />"
  370. _source_webm="<source src=\"$stem.webm\" type=\"video/webm\" />"
  371. _source_vp9="<source src=\"${stem}_vp9.webm\" type='video/ogg; codecs=\"vp9, opus\"' />"
  372. _source_mp4="<source src=\"$stem.mp4\" type=\"video/mp4\" />"
  373. # TODO: resolve flash player to use
  374. [ -z "$flashplayer" ] || flash=yes
  375. [ -n "$mp4" ] || [ -z "$flash" ] || error1 "Cannot enable flash when mp4 format is disabled."
  376. _object_flash="<object$__width$__heightplus type=\"application/x-shockwave-flash\" data=\"$flashplayer.swf\">"
  377. _param_name="<param name=\"movie\" value=\"$flashplayer.swf\" />"
  378. _param_flashvars="<param name=\"flashvars\" value=\"image=$stem.jpg&amp;file=$stem.mp4\" />"
  379. __oggfile=${ogg:+open format <a href=\"$stem.ogv\">Ogg</a>}
  380. __webmfile=${webm:+open format <a href=\"$stem.webm\">WebM (VP8)</a>}
  381. __vp9file=${vp9:+open format <a href=\"${stem}_vp9.webm\">WebM (VP9/Opus)</a>}
  382. __mp4file=${mp4:+closed format <a href=\"$stem.mp4\">MPEG-4</a>}
  383. cat >"$stem.html" <<EOF
  384. <!-- Video for Everybody, Kroc Camen of Camen Design -->
  385. <video$__width$__height preload controls>
  386. ${mp4:+$_source_mp4
  387. }${vp9:+$_source_vp9
  388. }${webm:+$_source_webm
  389. }${ogg:+$_source_ogg
  390. }${flash:+$_object_flash
  391. $_param_name
  392. $_param_flashvars
  393. }<img src="$stem.jpg"$__width$__height alt="$title"
  394. title="No video playback capabilities, please download the video below" />
  395. ${flash:+</object>
  396. }</video>
  397. <p><strong>Download Video:</strong><ul>
  398. ${vp9:+<li>$__vp9file
  399. }${webm:+<li>$__webmfile
  400. }${ogg:+<li>$__oggfile
  401. }${mp4:+<li>$__mp4file
  402. }</ul></p>
  403. EOF