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  1. #!/bin/sh
  2. # Copyright © 2010-2014, 2016 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: ffmpeg melt mediainfo
  19. # Recommends: moreutils vpx-tools vorbis-tools opus-tools
  20. #
  21. # TODO:
  22. # * Offer to skip rendering again if an output file exist already.
  23. # * Support --width and --height, resolving the other part from input
  24. # or forced aspect ratio.
  25. # * Check and fail if all needed tools are not available.
  26. # * Test if beneficial to apply real_time=-2.
  27. # * Normalize each infile separately when xml fed as infile keeps sync.
  28. # Maybe as workaround re-feed audio separately from xml, as done at
  29. # <http://bernaerts.dyndns.org/linux/74-ubuntu/214-ubuntu-stabilize-video-melt>.
  30. # * Resolve flash player to use.
  31. # * Make choice of encoders configurable.
  32. # * Figure out how to apply application option when using opusenc.
  33. # * Handle channels per-codec for low-bitrate joint stereo Opus speech.
  34. # * Double-check audio bandwidth algorithms:
  35. # http://trac.ffmpeg.org/wiki/Encode/HighQualityAudio
  36. # * Change WebM bandwidth algorithm:
  37. # Use https://developers.google.com/media/vp9/settings/vod/
  38. # * Tune VP8 parameters:
  39. # http://www.webmproject.org/docs/encoder-parameters/
  40. # * Tune VP9 parameters:
  41. # https://sites.google.com/a/webmproject.org/wiki/ffmpeg/vp9-encoding-guide
  42. # * Support DASH:
  43. # https://sites.google.com/a/webmproject.org/wiki/adaptive-streaming/instructions-to-playback-adaptive-webm-using-dash
  44. # * Support watermark
  45. # * Support live streaming - i.e. from (maybe faked) endless source
  46. # + Lipsync may require single stream of equally chunked tracks:
  47. # https://sites.google.com/a/webmproject.org/wiki/adaptive-streaming/instructions-to-do-webm-live-streaming-via-dash
  48. # * Support realtime streaming - i.e. with less than 200ms latency
  49. # * Compute (or hardcode) html5 codec types:
  50. # + Use mp4v2-utils
  51. # + http://stackoverflow.com/a/16365526
  52. set -e
  53. PRG=$(basename "$0")
  54. showhelp() {
  55. cat <<EOF
  56. Usage: $PRG [OPTION...] [--] [ARG=VALUE...] INPUTFILE... [ARG=VALUE...]
  57. Encode video file in multiple web-optimized formats, and provide sample
  58. html favoring open formats with optional non-JavaScript Flash fallback.
  59. --video Video style:
  60. [refbpp]
  61. talkinghead 0.1
  62. action 0.15
  63. (default: none)
  64. -p, --profile Video frame size and optional rate, delimited by @
  65. except "p" labels: e.g. 848x480@25 480p25 wvga@25
  66. -s, --size Set video frame size:
  67. [modulus 16]
  68. 320x240 qvga
  69. 640x480 vga 480p 848x480 wvga
  70. 576p 1024x576 wsvga
  71. 1024x768 xga hd 720p 1280x720 wxga
  72. [modulus 8]
  73. 240p 424x240 wqvga
  74. 480x360 hvga nhd 360p 640x360
  75. 800x600 svga
  76. (default: use input size)
  77. -a, --aspect Display Aspect Ratio in melt format: e.g. @16/9
  78. (default: no aspect hinting)
  79. -r, --rate Video framerate: e.g. 25 1001/30000
  80. (default: use input framerate)
  81. --refbpp Bitrate reference: Bits-per-pixel for 360p30 H.264
  82. (default: 0.12)
  83. --formats Containers and codecs to use, comma-separated:
  84. [container] [video codec] [audio codec]
  85. theora ogg Ogg Theora Vorbis
  86. vp8 webm WebM VP8 Vorbis
  87. vp9 WebM VP9 Opus
  88. h264 mp4 MPEG-4 H.264 AAC
  89. (default: webm,vp9,mp4)
  90. --audio Audio style:
  91. [channels] [bitrate per channel]
  92. music max. 2 ~48-64k
  93. speech 1 ~32-64k
  94. silence 0
  95. (default: channel count of first input, ~48-64k)
  96. --audioprefilter Add audio filter before loudness
  97. --loudness Add EBU R128 loudness filter
  98. --loudness-data Add loudness filter, with precomputed results
  99. (default: none - compute results on-the-fly)
  100. --filter Add filter
  101. --stem Stem of output filenames, optionally with path
  102. (default: basename of first input)
  103. -t, --title Title used in html fallback graphics
  104. (default: stem)
  105. --still-frame Frame used as still picture
  106. (default: 0)
  107. --sample Create only a 150 frames long sample
  108. --sample-start Create sample, starting at a specific frame
  109. (default: start at first frame)
  110. --sample-length Create sample of specified length, in frames
  111. (default: 150 frames i.e. approx. 5s)
  112. --compression Prioritize quality, size or render time:
  113. [quality] [bitrate] [speed]
  114. dirty fast
  115. normal medium average medium
  116. hq high exact very slow
  117. exact medium exact slow
  118. quality medium vary medium
  119. (default: normal)
  120. -h, --help This help text
  121. Examples:
  122. $PRG -s qvga -t "Funny guy" intro.dv myvideo.dv
  123. $PRG -p 480p15 --filter "grain noise=20" myvideo.dv
  124. Recommendations for best results:
  125. * Use square pixels, modulus 16, max. 480 width (qvga vga 480p 720p).
  126. * Try lower --refbpp while visually acceptable, or raise to max. 0.2.
  127. * Expand and compress noisy speech with ladspa.1075 and ladspa.1916.
  128. More info:
  129. <http://camendesign.com/code/video_for_everybody>
  130. <http://www.streaminglearningcenter.com/articles/configuring-your-streaming-video-(for-newbies).html>
  131. <http://en.wikipedia.org/wiki/HTML5_video>
  132. <http://www.penguinproducer.com/2012/01/ladspa-noise-removal/>
  133. <http://theproaudiofiles.com/mixing-vocals-dynamics-compression-limiting>
  134. <http://www.internetmarketingnotes.com/2010/07/free-embeddable-flash-video-flv-players-for-commercial-use/>
  135. EOF
  136. }
  137. exit1() {
  138. response="${1:+Error: }${1:-Internal error!}"
  139. echo >&2 "$response"
  140. exit 1
  141. }
  142. # defaults
  143. formats=webm,vp9,mp4
  144. stillframe=0
  145. samplestart=0
  146. samplelength=150
  147. compression=normal
  148. # VP8 is rumored to compress ~20% worse than H.264
  149. factor_vp8=120/100
  150. # VP9 compresses natural video ~27% worse than H.264 (i.e. excluding animation)
  151. # <http://infoscience.epfl.ch/record/200925/files/article-vp9-submited-v2.pdf>
  152. factor_vp9=127/100
  153. # Mimic ReplayGain level when loudness is enabled (EBU R128: -23LUFS)
  154. # <https://auphonic.com/blog/2013/01/07/loudness-targets-mobile-audio-podcasts-radio-tv/>
  155. lufs=-18
  156. # parse cmdline options
  157. TEMP="`getopt -s sh -o hp:s:a:r:b:t: -l help,profile:,size:,aspect:,rate:,video:,refbpp:,formats:,audio:,audioprefilter:,loudness,loudness-data:,filter:,stem:,title:,still-frame:,sample,sample-start:,sample-length:,compression: -n "$PRG" -- "$@"`" || exit1 "Internal getopt error."
  158. eval set -- "$TEMP"
  159. while true ; do
  160. case "$1" in
  161. -h|--help) showhelp; exit;;
  162. -p|--profile) profile="$2"; shift 2;;
  163. -s|--size) size="$2"; shift 2;;
  164. -a|--aspect) aspect="$2"; shift 2;;
  165. -r|--rate) framerate="$2"; shift 2;;
  166. --video) video="$2"; shift 2;;
  167. --refbpp) refbpp="$2"; shift 2;;
  168. --formats) formats="$2"; shift 2;;
  169. --audio) audio="$2"; shift 2;;
  170. --audioprefilter) audioprefilters="${audioprefilters:+$audioprefilters }-filter $2"; shift 2;;
  171. --loudness) loudness=yes; shift;;
  172. --loudness-data) loudness=yes; loudness_data="$2"; shift 2;;
  173. --filter) filters="${filters:+$filters }-filter $2"; shift 2;;
  174. --stem) stem="$2"; shift 2;;
  175. -t|--title) title="$2"; shift 2;;
  176. --still-frame) stillframe="$2"; shift 2;;
  177. --sample) sample=yes; shift;;
  178. --sample-start) sample=yes; samplestart="$2"; shift 2;;
  179. --sample-length) sample=yes; samplelength="$2"; shift 2;;
  180. --compression) compression="$2"; shift 2;;
  181. --) shift; break;;
  182. *) exit1 "Internal error resolving options.";;
  183. esac
  184. done
  185. [ -n "$sample" ] || notsample=yes
  186. # Resolve if system has many CPU cores
  187. processors=$(nproc)
  188. [ $processors -gt 2 ] || processors=
  189. # sanitize infiles
  190. infiles=$*
  191. infile_first=$(perl -e 'print shift @ARGV' $infiles)
  192. [ -e "$infile_first" ] || exit1 "Cannot read first input file \"$infile_first\"!"
  193. # resolve stem and title (if not explicitly set)
  194. stem=${stem:-$(basename "$infile_first" | perl -pe 's/\.[^.]*//')}
  195. title=${title:-$stem}
  196. #use_ffmpeg_vp8=yes
  197. #use_ffmpeg_vp9=yes
  198. #use_vpxenc=yes
  199. # Avoid discrete audio encoders if possible: may cause sync problems
  200. #use_oggenc=yes
  201. #use_opusenc=yes
  202. # Avoid AAC: Lame arguably better than any free AAC encoder
  203. # Argument for AAC: Safari possibly lacks mp3 support in video container
  204. #use_mp3=yes
  205. [ -n "$use_mp3" ] || use_aac=yes
  206. # Avoid MP3 VBR but seems ABR is fine: Set to CBR for strict correctnes
  207. #use_lame_cbr=yes
  208. [ -n "$use_lame_cbr" ] || use_lame_abr=yes
  209. # resolve quality/speed hints
  210. q_theora=5
  211. #q_vp8=10
  212. cpu_vp8=2
  213. #q_vp9=10
  214. cpu_vp9=5
  215. q_h264=23
  216. preset_h264=medium
  217. profile_h264=baseline
  218. case "$compression" in
  219. normal) :;;
  220. dirty)
  221. q_theora=1
  222. cpu_vp8=5
  223. q_h264=40
  224. ;;
  225. hq)
  226. multipass=yes
  227. q_theora=6
  228. cpu_vp8=0
  229. cpu_vp9=1
  230. preset_h264=veryslow
  231. ;;
  232. exact)
  233. multipass=yes
  234. ;;
  235. quality)
  236. no_bitrate=yes
  237. ;;
  238. *) exit1 "Unknown compression mode \"$compression\".";;
  239. esac
  240. [ -n "$multipass" ] || singlepass=yes
  241. # parse/resolve size and framerate
  242. case "$profile" in
  243. '') :;;
  244. *@*)
  245. while read s r foo; do
  246. profilesize="${size:-$s}"
  247. framerate="${framerate:-$r}"
  248. done << EOF
  249. $(echo "$profile" | perl -F@ -anE 'say join " ", @F')
  250. EOF
  251. ;;
  252. *p*)
  253. while read s r foo; do
  254. profilesize="${size:-${s}p}"
  255. framerate="${framerate:-$r}"
  256. done << EOF
  257. $(echo "$profile" | perl -Fp -anE 'say join " ", @F')
  258. EOF
  259. ;;
  260. *)
  261. profilesize="$profile"
  262. ;;
  263. esac
  264. size=${size:-$profilesize}
  265. case "$size" in
  266. qvga) size=320x240;;
  267. hvga) size=480x360;;
  268. vga) size=640x480;;
  269. svga) size=800x600;;
  270. xga) size=1024x768;;
  271. 240p|wqvga) size=424x240;;
  272. 360p|nhd) size=640x360;;
  273. 480p|wvga) size=848x480;;
  274. 576p|wsvga) size=1024x576;;
  275. 720p|wxga|hd) size=1280x720;;
  276. esac
  277. if [ -n "$size" ]; then
  278. while read w h foo; do
  279. width="${width:-$w}"
  280. height="${height:-$h}"
  281. done << EOF
  282. $(echo "$size" | perl -Fx -anE 'say join " ", @F')
  283. EOF
  284. if [ -z "$width" ] || [ -z "$height" ]; then
  285. exit1 "Failed to parse size \"$size\"."
  286. fi
  287. fi
  288. case "$framerate" in
  289. */*)
  290. while read n d foo; do
  291. framerate_num="${framerate_num:-$n}"
  292. framerate_den="${framerate_den:-$d}"
  293. done << EOF
  294. $(echo "$framerate" | perl -F/ -anE 'say join " ", @F')
  295. EOF
  296. ;;
  297. ?*)
  298. framerate_num="$framerate"
  299. framerate_den=1
  300. ;;
  301. esac
  302. # resolve input size and framerate (needed for computing bitrate)
  303. while read w h r s foo; do
  304. width_in="${width_in:-$w}"
  305. height_in="${height_in:-$h}"
  306. framerate_in="${framerate_in:-$r}"
  307. scantype_in="${scantype_in:-$s}"
  308. done << EOF
  309. $(mediainfo --Inform="Video;%Width% %Height% %FrameRate% %ScanType%" \
  310. "$infile_first")
  311. EOF
  312. [ Progressive = "$scantype_in" ] || do_deinterlace=yes
  313. case "$video" in
  314. talkinghead)
  315. refbpp="${refbpp:-0.1}"
  316. x264tune=film
  317. ;;
  318. action)
  319. refbpp="${refbpp:-0.15}"
  320. x264tune=film
  321. ;;
  322. '')
  323. refbpp="${refbpp:-0.12}"
  324. ;;
  325. *) exit1 "Unknown video style \"$video\".";;
  326. esac
  327. for format in $(echo "$formats" | sed -e 's/,/ /g'); do
  328. case $format in
  329. theora|ogg) ogg=yes;;
  330. h264|mp4) mp4=yes;;
  331. vp8|webm) webm=yes;;
  332. vp9) vp9=yes;;
  333. *) exit1 "Unknown format \"$format\".";;
  334. esac
  335. done
  336. _width="${width:-$width_in}"
  337. _height="${height:-$height_in}"
  338. if [ -n "$_width" ] && [ -n "$_height" ]; then
  339. _pixels="$((_width*_height))"
  340. fi
  341. _frames="${framerate:-$framerate_in}"
  342. pre_vp8=libvpx-360p
  343. pre_vp9=libvpx-360p
  344. webm_qmin=0
  345. webm_qmax=63
  346. webm_lag=16
  347. webm_tokenparts_log2=0
  348. if [ -n "$_pixels" ] && [ $_pixels -ge $((1024*768)) ]; then
  349. pre_vp8=libvpx-720p
  350. pre_vp9=libvpx-720p
  351. webm_qmin=11
  352. webm_qmax=51
  353. webm_tokenparts_log2=2
  354. if [ -n "$_frames" ] && [ $_frames -gt 40 ]; then
  355. pre_vp8=libvpx-720p50_60
  356. pre_vp9=libvpx-720p50_60
  357. webm_lag=25
  358. fi
  359. fi
  360. # compute average bitrate from reference data and "power of .75" rule
  361. if [ -z "$no_bitrate" ] && [ -n "$_pixels" ] && [ -n "$_frames" ]; then
  362. bitrate_h264=$(perl -E '$refsize=640*360;' \
  363. -E "say int( +(($_pixels/\$refsize)**0.75*\$refsize*$_frames*$refbpp) )")
  364. bitrate_theora=$bitrate_h264 # FIXME
  365. bitrate_vp8=$(perl -E "say int( +($bitrate_h264*$factor_vp8) )") #"
  366. bitrate_vp9=$(perl -E "say int( +($bitrate_h264*$factor_vp9) )") #"
  367. fi
  368. # default per-codec-channel bitrates
  369. quality_vorbis=3
  370. bitrate_opus=48
  371. quality_lame=6
  372. bitrate_lame=64
  373. bitrate_aac=64
  374. case "$audio" in
  375. music)
  376. opusapp=audio
  377. ;;
  378. speech)
  379. mono=yes
  380. quality_vorbis=2
  381. bitrate_opus=32
  382. quality_lame=7
  383. bitrate_lame=48
  384. opusapp=voip
  385. ;;
  386. silence)
  387. silence=yes
  388. ;;
  389. '')
  390. :
  391. ;;
  392. *) exit1 "Unknown audio style \"$audio\".";;
  393. esac
  394. which ffprobe > /dev/null && ffprobe=ffprobe || ffprobe=avprobe
  395. channels=$($ffprobe -v warning -show_streams "$infile_first" \
  396. | perl -ne 's/channels=// and print $_' || echo -1)
  397. # adapt channel count and flags to reflect actual downmix/silence need
  398. if [ -n "$stereo" ]; then
  399. if [ $channels -gt 2 ]; then
  400. channels=2
  401. else
  402. stereo=
  403. fi
  404. elif [ -n "$mono" ]; then
  405. if [ $channels -gt 1 ]; then
  406. channels=1
  407. else
  408. mono=
  409. fi
  410. elif [ -n "$silence" ]; then
  411. if [ $channels -gt 0 ]; then
  412. channels=0
  413. else
  414. silence=
  415. fi
  416. fi
  417. [ -z "$silence" ] || channels=
  418. if [ -n "$stereo$mono" ]; then
  419. # melt cannot downmix with (stereo?) filters applied (bug#763911)
  420. if [ -n "$audioprefilters$compress$loudness$limit$filters" ]; then
  421. if [ -z "${webm:+$use_oggenc}${webm_vp9:+$use_opusenc}" ]; then
  422. downmix_ffmpeg=yes
  423. else
  424. downmix_oggenc=yes
  425. downmix_oggenc=yes
  426. fi
  427. else
  428. downmix_melt=yes
  429. fi
  430. fi
  431. encoder_vp8=libvpx
  432. encoder_vp9=libvpx-vp9
  433. encoder_h264=libx264
  434. for vformat in vp8 vp9 h264; do
  435. # melt supports dual-pass or Constant Quality modes only for h.264
  436. [ h264 = "$vformat" ] || [ -n "$vpxenc" ] || eval "[ -z \"$multipass\$q_$vformat\" ] || use_ffmpeg_$vformat=yes"
  437. eval "[ -n \"\$bitrate_$vformat\" ] || no_bitrate_$vformat=yes"
  438. eval "[ -n \"\$q_$vformat\" ] || no_q_$vformat=yes"
  439. done
  440. if [ -n "$use_ffmpeg_vp8$use_ffmpeg_vp9$use_vpxenc" ]; then
  441. [ -n "$use_oggenc" ] || use_ffmpeg_ogg=yes
  442. [ -n "$use_opusenc" ] || use_ffmpeg_opus=yes
  443. [ -z "$use_oggenc$use_opusenc" ] || use_wav=yes
  444. [ -z "$use_ffmpeg_ogg$use_ffmpeg_opus" ] || use_matroska=yes
  445. fi
  446. # generic options
  447. melt="melt -progress"
  448. which ffmpeg > /dev/null && ffmpeg=ffmpeg || ffmpeg=avconv
  449. ffmpeg_alone="$ffmpeg -threads auto -y -v info -stats"
  450. ffmpeg_chained="$ffmpeg -threads auto -y -v warning"
  451. vpxenc_chained="vpxenc --quiet ${processors:+-t $((processors-1))}"
  452. oggenc="oggenc"
  453. opusenc="opusenc"
  454. _melt_infiles="${notsample:+$infiles}${sample:+$infile_first in=$((samplestart)) out=$((samplestart + samplelength))}"
  455. # filter options
  456. _melt_video="progressive=1${framerate:+ frame_rate_num="$framerate_num" frame_rate_den="$framerate_den"}${size:+ s=${width:+$width}x${height:+$height}}${aspect:+ aspect=$aspect}"
  457. _ffmpeg_video="${do_deinterlace:+-filter:v yadif}${framerate:+ -r $framerate_num/$framerate_den}${size:+ -s ${width:+$width}x${height:+$height}}${aspect:+ -aspect $aspect}"
  458. _melt_downmix="${downmix_melt:+ac=$channels}"
  459. _ffmpeg_downmix="${downmix_ffmpeg:+-ac $channels}"
  460. # FIXME: how to downmix to stereo?
  461. _oggenc_downmix="${downmix_oggenc:+${mono:+--downmix}}"
  462. _opusenc_downmix="${downmix_opusenc:+${stereo:+--downmix-stereo}${mono:+--downmix-mono}}"
  463. # limit (i.e. avoid peaks "clipping")
  464. _melt_postfilters_audio="${limit:+-filter ladspa.1077}"
  465. # codec options
  466. _melt_theora="vcodec=libtheora${bitrate_theora:+ vb=$bitrate_theora} qscale=$q_theora"
  467. _melt_vp8="vcodec=$encoder_vp8${pre_vp8:+ vpreset=$pre_vp8}${preset_vp8:+ preset=$preset_vp8}${bitrate_vp8:+ ${no_q_vp8:+ vb=$bitrate_vp8} minrate=$((bitrate_vp8/20)) maxrate=$((bitrate_vp8*12))}${q_vp8:+ crf=$q_vp8} cpu-used=$cpu_vp8"
  468. _ffmpeg_vp8="-c:v $encoder_vp8${pre_vp8:+ -vpre $pre_vp8}${preset_vp8:+ preset $preset_vp8}${bitrate_vp8:+ ${no_q_vp8:+-b:v $bitrate_vp8} -minrate $((bitrate_vp8/20)) -maxrate $((bitrate_vp8*12))}${q_vp8:+ ${no_bitrate_vp8:+ -b:v 0 }-crf $q_vp8} -cpu-used $cpu_vp8"
  469. _vpxenc_vpx="--min-q=$webm_qmin --max-q=$webm_qmax${multipass:+ --minsection-pct=5 --maxsection-pct=1200} --kf-max-dist=120 --auto-alt-ref=1 --lag-in-frames=$webm_lag --arnr-maxframes=7 --arnr-strength=5 --arnr-type=3"
  470. _vpxenc_vp8="--codec=vp8${bitrate_vp8:+ --target-bitrate=$((bitrate_vp8/1000))} --good --end-usage=${no_q_vp8:+vbr}${q_vp8:+cq --cq-level=$q_vp8} --cpu-used=$cpu_vp8 $_vpxenc_vpx --token-parts=$webm_tokenparts_log2"
  471. _melt_vp9="vcodec=$encoder_vp9${pre_vp9:+ vpreset=$pre_vp9}${preset_vp9:+ preset=$preset_vp9}${bitrate_vp9:+ ${no_q_vp9:+vb=$bitrate_vp9} minrate=$((bitrate_vp9/20)) maxrate=$((bitrate_vp9*12))}${q_vp9:+ crf=$q_vp9} cpu-used=$cpu_vp9"
  472. _ffmpeg_vp9="-c:v $encoder_vp9${pre_vp9:+ -vpre $pre_vp9}${preset_vp9:+ -preset $preset_vp9}${bitrate_vp9:+ ${no_q_vp9:+-b:v $bitrate_vp9} -minrate $((bitrate_vp9/20)) -maxrate $((bitrate_vp9*12))}${q_vp9:+ ${no_bitrate_vp9:+-b:v 0 }-crf $q_vp9} -cpu-used $cpu_vp9"
  473. _vpxenc_vp9="--codec=vp9${bitrate_vp9:+ --target-bitrate=$((bitrate_vp9/1000))} --good --end-usage=${no_q_vp9:+vbr}${q_vp9:+cq --cq-level=$q_vp9} --cpu-used=$cpu_vp9 $_vpxenc_vpx --tile-columns=$webm_tokenparts_log2 --tile-rows=$webm_tokenparts_log2"
  474. _melt_h264="vcodec=$encoder_h264${preset_h264:+ vpreset=$preset_h264}${profile_h264:+ vprofile=$profile_h264}${x264tune:+ tune=$x264tune}${bitrate_h264:+ maxrate=${bitrate_h264} bufsize=$((bitrate_h264*2))} threads=0 movflags=+faststart crf=$q_h264"
  475. _melt_pcm="$_melt_downmix acodec=pcm_s16le"
  476. _melt_vorbis="$_melt_downmix acodec=libvorbis aq=$quality_vorbis"
  477. _ffmpeg_vorbis="$_ffmpeg_downmix -c:a libvorbis -aq $quality_vorbis"
  478. _oggenc_vorbis="$_oggenc_downmix -q $quality_vorbis"
  479. _melt_opus="$_melt_downmix acodec=libopus ab=$((channels*bitrate_opus))k${opusapp:+ application=$opusapp}"
  480. _ffmpeg_opus="$_ffmpeg_downmix -c:a libopus -b:a $((channels*bitrate_opus))k${opusapp:+ -application $opusapp}"
  481. _opusenc_opus="$_opusenc_downmix --bitrate $((channels*bitrate_opus))"
  482. _melt_mp3="$_melt_downmix acodec=libmp3lame${use_lame_abr:+ aq=$quality_lame}${use_lame_cbr:+ ab=$((channels*bitrate_lame))k}"
  483. _melt_aac="$_melt_downmix acodec=aac ab=$((channels*bitrate_aac))k"
  484. # container options
  485. _melt_yuv4mpeg2="f=yuv4mpegpipe $_melt_video pix_fmt=yuv420p an=1 audio_off=1"
  486. _ffmpeg_yuv4mpeg2_in="-f yuv4mpegpipe"
  487. _ffmpeg_rawvideo="-f rawvideo"
  488. _melt_wav="f=wav $_melt_pcm vn=1 video_off=1"
  489. _ffmpeg_wav_in="-f wav"
  490. _oggenc_wav_in=
  491. _opusenc_wav_in=
  492. _melt_matroska_pcm="f=matroska $_melt_downmix $_melt_pcm vn=1 video_off=1"
  493. _ffmpeg_matroska_pcm_in="-f matroska"
  494. _melt_ogg="f=ogg $_melt_video $_melt_theora ${silence:+an=1 audio_off=1}${channels:+$_melt_vorbis}"
  495. _ffmpeg_ogg_in="-f ogg"
  496. _ffmpeg_ogg_vorbis="-f ogg -vn $_ffmpeg_vorbis"
  497. _ffmpeg_ogg_opus="-f ogg -vn $_ffmpeg_opus"
  498. _melt_webm="f=webm $_melt_video $_melt_vp8 ${silence:+an=1 audio_off=1}${channels:+$_melt_vorbis}"
  499. _ffmpeg_webm="-f webm $_ffmpeg_video $_ffmpeg_vp8 ${silence:+-an}${channels:+ $_ffmpeg_vorbis}"
  500. _ffmpeg_webm_in="-f webm"
  501. _ffmpeg_webm_onlyvideo="-f webm $_ffmpeg_video $_ffmpeg_vp8 -an"
  502. _ffmpeg_webm_keepvideo="-f webm $_ffmpeg_video -c:v copy ${silence:+-an}${channels:+$_ffmpeg_vorbis}"
  503. _ffmpeg_webm_keepvideo_opus="-f webm $_ffmpeg_video -c:v copy ${silence:+-an}${channels:+$_ffmpeg_opus}"
  504. _melt_webm_vp9="f=webm $_melt_video $_melt_vp9 ${silence:+an=1 audio_off=1}${channels:+$_melt_opus}"
  505. _ffmpeg_webm_vp9="-f webm $_ffmpeg_video $_ffmpeg_vp9 ${silence:+-an}${channels:+$_ffmpeg_opus}"
  506. _ffmpeg_webm_onlyvideo_vp9="-f webm $_ffmpeg_video $_ffmpeg_vp9 -an"
  507. _melt_mp4="f=mp4 $_melt_video $_melt_h264 ${silence:+an=1 audio_off=1}${channels:+${use_mp3:+$_melt_mp3}${use_aac:+$_melt_aac}}"
  508. _melt_img="f=image2 $_melt_video"
  509. _melt_loudness="$loudness_data"
  510. if [ -n "$loudness" ] && [ -z "$silence$_melt_loudness" ]; then
  511. echo >&2 "Analyzing audio dynamics..."
  512. $melt $_melt_infiles \
  513. $audioprefilters -filter loudness $filters \
  514. -consumer xml:$stem.xml video_off=1 all=1
  515. _melt_loudness="$(perl -n \
  516. -e 'm!<(property) name="results">([^<]+)</\1>! and print $2' \
  517. $stem.xml)"
  518. echo >&2 "Loudness data: $_melt_loudness"
  519. fi
  520. if [ -n "$multipass" ] && [ -n "${webm:+$use_vpxenc$use_ffmpeg_vp8$use_oggenc}${vp9:+$use_vpxenc$use_ffmpeg_vp9$use_opusenc}" ]; then
  521. echo >&2 "Analyzing video complexity..."
  522. if [ -n "$use_vpxenc" ]; then
  523. $melt $_melt_infiles $filters \
  524. -consumer avformat:pipe:1 $_melt_yuv4mpeg2 \
  525. | pee \
  526. ${webm:+"$vpxenc_chained - $_vpxenc_vp8 \
  527. -p 2 --pass=1 --fpf=${stem}_vp8.log -o /dev/null"} \
  528. ${vp9:+"$vpxenc_chained - $_vpxenc_vp9 \
  529. -p 2 --pass=1 --fpf=${stem}_vp9.log -o /dev/null"}
  530. else
  531. $melt $_melt_infiles $filters \
  532. -consumer avformat:pipe:1 $_melt_yuv4mpeg2 \
  533. | $ffmpeg_chained $_ffmpeg_yuv4mpeg2_in -i pipe:0 \
  534. ${webm:+$_ffmpeg_rawvideo $_ffmpeg_vp8 -an \
  535. -pass 1 -passlogfile ${stem}_vp8 /dev/null} \
  536. ${vp9:+$_ffmpeg_rawvideo $_ffmpeg_vp9 -an \
  537. -pass 1 -passlogfile ${stem}_vp9 /dev/null}
  538. [ -z "$webm" ] || [ -n "$use_ffmpeg_vp8" ] || mv -f ${stem}_vp8-*.log ${stem}_vp8_2pass.log
  539. [ -z "$vp9" ] || [ -n "$use_ffmpeg_vp9" ] || mv -f ${stem}_vp9-*.log ${stem}_vp9_2pass.log
  540. fi
  541. fi
  542. if [ -n "${webm:+$use_vpxenc$use_ffmpeg_vp8$use_oggenc}${vp9:+$use_vpxenc$use_ffmpeg_vp9$use_opusenc}" ]; then
  543. echo >&2 "Encoding video${channels:+ and extracting audio}, as discrete files..."
  544. $melt $_melt_infiles \
  545. ${channels:+$audioprefilters \
  546. ${_melt_loudness:+-filter loudness program=$lufs \
  547. results="$_melt_loudness"}} \
  548. $filters${channels:+ $_melt_postfilters_audio} \
  549. ${ogg:+-consumer avformat:$stem.ogv $_melt_ogg} \
  550. ${mp4:+-consumer avformat:$stem.mp4 $_melt_mp4} \
  551. ${channels:+${use_wav:+-consumer avformat:$stem.wav \
  552. $_melt_wav}} \
  553. ${channels:+${use_matroska:+-consumer avformat:$stem.mkv \
  554. $_melt_matroska_pcm}} \
  555. -consumer avformat:pipe:1 $_melt_yuv4mpeg2 \
  556. | pee \
  557. ${webm:+${use_ffmpeg_vp8:+"$ffmpeg_chained \
  558. $_ffmpeg_yuv4mpeg2_in -i pipe:0 \
  559. $_ffmpeg_webm_onlyvideo \
  560. ${multipass:+-pass 2 -passlogfile ${stem}_vp8} \
  561. ${stem}${channels:+_silent}.webm"}} \
  562. ${webm:+${use_vpxenc:+"$vpxenc_chained - $_vpxenc_vp8 \
  563. ${singlepass:+-p 1} \
  564. ${multipass:+-p 2 --pass=2 --fpf=${stem}_vp8.log} \
  565. -o ${stem}${channels:+_silent}.webm"}} \
  566. ${vp9:+${use_ffmpeg_vp9:+"$ffmpeg_chained \
  567. $_ffmpeg_yuv4mpeg2_in -i pipe:0 \
  568. $_ffmpeg_webm_onlyvideo_vp9 \
  569. ${multipass:+-pass 2 -passlogfile ${stem}_vp9} \
  570. ${stem}_vp9${channels:+_silent}.webm"}} \
  571. ${vp9:+${use_vpxenc:+"$vpxenc_chained - $_vpxenc_vp9 \
  572. ${singlepass:+-p 1} \
  573. ${multipass:+-p 2 --pass=2 --fpf=${stem}_vp9.log} \
  574. -o ${stem}_vp9${channels:+_silent}.webm"}}
  575. if [ -n "$webm" ] && [ -n "$channels" ]; then
  576. echo >&2 "Encoding Vorbis audio and muxing with VP8 video..."
  577. if [ -n "$use_oggenc" ]; then
  578. $oggenc $_oggenc_wav_in $_oggenc_vorbis -o - $stem.wav \
  579. | $ffmpeg_chained \
  580. $_ffmpeg_webm_in -i ${stem}_silent.webm \
  581. $_ffmpeg_ogg_in -i pipe:0 \
  582. $_ffmpeg_webm_keepvideo $stem.webm
  583. else
  584. $ffmpeg_alone $_ffmpeg_webm_in -i ${stem}_silent.webm \
  585. $_ffmpeg_matroska_wav_in -i $stem.mkv \
  586. $_ffmpeg_webm_keepvideo ${stem}.webm
  587. fi
  588. fi
  589. if [ -n "$vp9" ] && [ -n "$channels" ]; then
  590. echo >&2 "Encoding Opus audio and muxing with WebM/VP9 video..."
  591. if [ -n "$use_opusenc" ]; then
  592. $opusenc $_opusenc_wav_in $_opusenc_opus -o - $stem.wav \
  593. | $ffmpeg_chained \
  594. $_ffmpeg_webm_in -i ${stem}_vp9_silent.webm \
  595. $_ffmpeg_ogg_in -i pipe:0 \
  596. $_ffmpeg_webm_keepvideo_opus ${stem}_vp9.webm
  597. else
  598. $ffmpeg_alone $_ffmpeg_webm_in -i ${stem}_vp9_silent.webm \
  599. $_ffmpeg_matroska_wav_in -i $stem.mkv \
  600. $_ffmpeg_webm_keepvideo_opus ${stem}_vp9.webm
  601. fi
  602. fi
  603. else
  604. echo >&2 "Encoding video${channels:+ and audio}, at once..."
  605. $melt $_melt_infiles \
  606. ${channels:+$audioprefilters \
  607. ${_melt_loudness:+-filter loudness program=$lufs \
  608. results="$_melt_loudness"}} \
  609. $filters${channels:+ $_melt_postfilters_audio} \
  610. ${ogg:+-consumer avformat:$stem.ogv $_melt_ogg} \
  611. ${webm:+-consumer avformat:$stem.webm $_melt_webm \
  612. ${multipass:+pass=2 passlogfile=${stem}_vp8}} \
  613. ${vp9:+-consumer avformat:${stem}_vp9.webm $_melt_webm_vp9 \
  614. ${multipass:+pass=2 passlogfile=${stem}_vp9}} \
  615. ${mp4:+-consumer avformat:$stem.mp4 $_melt_mp4}
  616. fi
  617. # cleanup encoding cruft
  618. rm -f $stem.xml $stem.wav $stem.mkv ${stem}_*.log ${stem}_*silent.webm
  619. # JPEG preview
  620. $melt $infile_first in=$stillframe out=$stillframe \
  621. -group $filters \
  622. -consumer avformat:$stem.jpg $_melt_img
  623. __width="${_width:+ width=\"$_width\"}"
  624. __height="${_height:+ height=\"$_height\"}"
  625. # Flash object needs extra space for controllers
  626. __heightplus=${_height:+ height=\"$((_height+4))\"}
  627. _source_ogg="<source src=\"$stem.ogv\" type=\"video/ogg\" />"
  628. _source_webm="<source src=\"$stem.webm\" type=\"video/webm\" />"
  629. _source_vp9="<source src=\"${stem}_vp9.webm\" type='video/ogg; codecs=\"vp9, opus\"' />"
  630. _source_mp4="<source src=\"$stem.mp4\" type=\"video/mp4\" />"
  631. [ -z "$flashplayer" ] || flash=yes
  632. [ -n "$mp4" ] || [ -z "$flash" ] || error1 "Cannot enable flash when mp4 format is disabled."
  633. _object_flash="<object$__width$__heightplus type=\"application/x-shockwave-flash\" data=\"$flashplayer.swf\">"
  634. _param_name="<param name=\"movie\" value=\"$flashplayer.swf\" />"
  635. _param_flashvars="<param name=\"flashvars\" value=\"image=$stem.jpg&amp;file=$stem.mp4\" />"
  636. __oggfile=${ogg:+open format <a href=\"$stem.ogv\">Ogg</a>}
  637. __webmfile=${webm:+open format <a href=\"$stem.webm\">WebM (VP8)</a>}
  638. __vp9file=${vp9:+open format <a href=\"${stem}_vp9.webm\">WebM (VP9/Opus)</a>}
  639. __mp4file=${mp4:+closed format <a href=\"$stem.mp4\">MPEG-4</a>}
  640. cat >"$stem.html" <<EOF
  641. <!-- Video for Everybody, Kroc Camen of Camen Design -->
  642. <video$__width$__height preload controls>
  643. ${mp4:+$_source_mp4
  644. }${vp9:+$_source_vp9
  645. }${webm:+$_source_webm
  646. }${ogg:+$_source_ogg
  647. }${flash:+$_object_flash
  648. $_param_name
  649. $_param_flashvars
  650. }<img src="$stem.jpg"$__width$__height alt="$title"
  651. title="No video playback capabilities, please download the video below" />
  652. ${flash:+</object>
  653. }</video>
  654. <p><strong>Download Video:</strong><ul>
  655. ${vp9:+<li>$__vp9file
  656. }${webm:+<li>$__webmfile
  657. }${ogg:+<li>$__oggfile
  658. }${mp4:+<li>$__mp4file
  659. }</ul></p>
  660. EOF