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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 vainfo 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. (vp8 uses "soft-CQ" instead of unsupported Q)
  114. [quality] [bitrate] [speed] [method,pass]
  115. dirty fast CQ,1
  116. normal medium average medium CQ,1
  117. hq high exact very slow CQ,2
  118. exact medium exact slow CQ,2
  119. quality medium vary medium Q,1
  120. (default: normal)
  121. --quality Quality rate factor: auto [integer] none
  122. (default: auto)
  123. --gpu Use hardware acceleration: none auto vaapi qsv
  124. (default: auto when compression=dirty, else none)
  125. --gpudevice Device used for hardware acceleration
  126. (default: /dev/dri/renderD128)
  127. -h, --help This help text
  128. Examples:
  129. $PRG -s qvga -t "Funny guy" intro.dv myvideo.dv
  130. $PRG -p 480p15 --filter "grain noise=20" myvideo.dv
  131. Recommendations for best results:
  132. * Use square pixels, modulus 16, max. 480 width (qvga vga 480p 720p).
  133. * Try lower --refbpp while visually acceptable, or raise to max. 0.2.
  134. * Expand and compress noisy speech with ladspa.1075 and ladspa.1916.
  135. More info:
  136. <http://camendesign.com/code/video_for_everybody>
  137. <http://www.streaminglearningcenter.com/articles/configuring-your-streaming-video-(for-newbies).html>
  138. <http://en.wikipedia.org/wiki/HTML5_video>
  139. <http://www.penguinproducer.com/2012/01/ladspa-noise-removal/>
  140. <http://theproaudiofiles.com/mixing-vocals-dynamics-compression-limiting>
  141. <http://www.internetmarketingnotes.com/2010/07/free-embeddable-flash-video-flv-players-for-commercial-use/>
  142. EOF
  143. }
  144. exit1() {
  145. response="${1:+Error: }${1:-Internal error!}"
  146. echo >&2 "$response"
  147. exit 1
  148. }
  149. # defaults
  150. formats=webm,vp9,mp4
  151. stillframe=0
  152. samplestart=0
  153. samplelength=150
  154. compression=normal
  155. # establish/verify rendering settings for reference codec
  156. #
  157. # 1) pick reference frame:encoding format: 360p30:h.264
  158. # 2) pick reference codec (incl. normal settings)
  159. # 3) render reference frame format with --compression=quality
  160. # * check that bpp is near "refbpp" of 0.12
  161. # (otherwise adapt settings or do research and update refbpp)
  162. # 4) render misc. frame formats (esp. modulus 16) with --compression=quality
  163. # * check that bpp derives from refbpp by "rule of .75"
  164. # (otherwise adapt settings and/or do research and update rule)
  165. # 5) render misc. frame formats with --compression=normal
  166. # * check that bpp derives from refbpp by "rule of .75"
  167. # 6) optionally pick dirty/hq settings
  168. # * check that --compression=quality has filesize similar as normal
  169. # establish/verify rendering settings for non-reference codec
  170. #
  171. # 1) pick normal settings
  172. # 2) render reference frame format with --compression=quality
  173. # * check that this "codec-bpp" deviates reasonably from refbpp
  174. # 3) render misc. frame formats (esp. modulus 16) with --compression=quality
  175. # * check that bpp derives from codec-bpp by "rule of .75"
  176. # (otherwise adapt settings and/or extend rule)
  177. # 4) render misc. frame formats with --compression=normal
  178. # * check that bpp derives from codec-bpp by "rule of .75"
  179. # 5) optionally pick dirty/hq settings
  180. # * check that --compression=quality has similar filesize as normal
  181. # VP8 is rumored to compress ~20% worse than H.264
  182. factor_vp8=120/100
  183. # VP9 compresses ~30% better than H.264 for practical use-cases
  184. # <https://engineering.fb.com/2018/04/10/video-engineering/av1-beats-x264-and-libvpx-vp9-in-practical-use-case/>
  185. factor_vp9=70/100
  186. # Mimic ReplayGain level when loudness is enabled (EBU R128: -23LUFS)
  187. # <https://auphonic.com/blog/2013/01/07/loudness-targets-mobile-audio-podcasts-radio-tv/>
  188. lufs=-18
  189. # parse cmdline options
  190. 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:,quality:,gpu:,gpudevice: -n "$PRG" -- "$@"`" || exit1 "Internal getopt error."
  191. eval set -- "$TEMP"
  192. while true ; do
  193. case "$1" in
  194. -h|--help) showhelp; exit;;
  195. -p|--profile) profile="$2"; shift 2;;
  196. -s|--size) size="$2"; shift 2;;
  197. -a|--aspect) aspect="$2"; shift 2;;
  198. -r|--rate) framerate="$2"; shift 2;;
  199. --video) video="$2"; shift 2;;
  200. --refbpp) refbpp="$2"; shift 2;;
  201. --formats) formats="$2"; shift 2;;
  202. --audio) audio="$2"; shift 2;;
  203. --audioprefilter) audioprefilters="${audioprefilters:+$audioprefilters }-filter $2"; shift 2;;
  204. --loudness) loudness=yes; shift;;
  205. --loudness-data) loudness=yes; loudness_data="$2"; shift 2;;
  206. --filter) filters="${filters:+$filters }-filter $2"; shift 2;;
  207. --stem) stem="$2"; shift 2;;
  208. -t|--title) title="$2"; shift 2;;
  209. --still-frame) stillframe="$2"; shift 2;;
  210. --sample) sample=yes; shift;;
  211. --sample-start) sample=yes; samplestart="$2"; shift 2;;
  212. --sample-length) sample=yes; samplelength="$2"; shift 2;;
  213. --compression) compression="$2"; shift 2;;
  214. --quality) quality="$2"; shift 2;;
  215. --gpu) gpu="$2"; shift 2;;
  216. --gpudevice) gpudevice="$2"; shift 2;;
  217. --) shift; break;;
  218. *) exit1 "Internal error resolving options.";;
  219. esac
  220. done
  221. [ -n "$sample" ] || notsample=yes
  222. # Resolve if system has many CPU cores
  223. processors=$(nproc)
  224. [ $processors -gt 2 ] || processors=
  225. # sanitize infiles
  226. infiles=$*
  227. infile_first=$(perl -e 'print shift @ARGV' $infiles)
  228. [ -e "$infile_first" ] || exit1 "Cannot read first input file \"$infile_first\"!"
  229. # resolve stem and title (if not explicitly set)
  230. stem=${stem:-$(basename "$infile_first" | perl -pe 's/\.[^.]*//')}
  231. title=${title:-$stem}
  232. #use_ffmpeg_vp8=yes
  233. #use_ffmpeg_vp9=yes
  234. #use_ffmpeg_h264=yes
  235. #use_vpxenc=yes
  236. # Avoid discrete audio encoders if possible: may cause sync problems
  237. #use_oggenc=yes
  238. #use_opusenc=yes
  239. # Avoid AAC: Lame arguably better than any free AAC encoder
  240. # Argument for AAC: Safari possibly lacks mp3 support in video container
  241. #use_mp3=yes
  242. [ -n "$use_mp3" ] || use_aac=yes
  243. # Avoid MP3 VBR but seems ABR is fine: Set to CBR for strict correctnes
  244. #use_lame_cbr=yes
  245. [ -n "$use_lame_cbr" ] || use_lame_abr=yes
  246. # resolve quality/speed hints
  247. qkey_vp8=crf
  248. qkey_vp9=crf
  249. qkey_h264=crf
  250. q_theora=5
  251. q_vp8=33
  252. cpu_vp8=2
  253. q_vp9=33
  254. cpu_vp9=2
  255. q_h264=23
  256. preset_h264=medium
  257. profile_vp8=0
  258. profile_vp9=0
  259. profile_h264=baseline
  260. case "$compression" in
  261. normal) :;;
  262. dirty)
  263. gpu=${gpu:-auto}
  264. q_theora=1
  265. cpu_vp8=4
  266. cpu_vp9=4
  267. preset_h264=veryfast
  268. ;;
  269. hq)
  270. multipass=yes
  271. q_theora=6
  272. cpu_vp8=0
  273. cpu_vp9=1
  274. preset_h264=veryslow
  275. ;;
  276. exact)
  277. multipass=yes
  278. ;;
  279. quality)
  280. no_bitrate=yes
  281. ;;
  282. *) exit1 "Unknown compression mode \"$compression\".";;
  283. esac
  284. case "$quality" in
  285. auto|'') :;;
  286. none) no_q=yes;;
  287. *) q=$quality;;
  288. esac
  289. gpudevice=${gpudevice:-/dev/dri/renderD128}
  290. if [ auto = "$gpu" ]; then
  291. vainfo=$(vainfo --display drm --device "$gpudevice" 2>/dev/null | perl -nE '/Driver version:\s*\K.*/ and say $&; /VAProfile\S+\s*:\s*VAEntrypointEncSliceLP/ and say $&')
  292. case "$vainfo" in
  293. '') gpu=;;
  294. # TODO *"Intel iHD driver"*) gpu=qsv;;
  295. *) gpu=vaapi;;
  296. esac
  297. fi
  298. case "$gpu" in
  299. none|'') gpu=;;
  300. qsv)
  301. multipass=
  302. preset_vp8=medium
  303. preset_vp9=medium
  304. preset_h264=
  305. profile_h264=578
  306. use_ffmpeg_h264=yes
  307. qkey_h264=qp
  308. ;;
  309. vaapi)
  310. multipass=
  311. preset_h264=
  312. profile_h264=578
  313. use_ffmpeg_h264=yes
  314. qkey_h264=qp
  315. case "$compression" in
  316. dirty)
  317. preset_h264=
  318. ;;
  319. esac
  320. ;;
  321. *) exit1 "Unknown GPU type \"$gpu\".";;
  322. esac
  323. [ -n "$multipass" ] || singlepass=yes
  324. [ -z "$gpu" ] && no_gpu=yes || eval "gpu_$gpu=yes"
  325. # parse/resolve size and framerate
  326. case "$profile" in
  327. '') :;;
  328. *@*)
  329. while read s r foo; do
  330. profilesize="${size:-$s}"
  331. framerate="${framerate:-$r}"
  332. done << EOF
  333. $(echo "$profile" | perl -F@ -anE 'say join " ", @F')
  334. EOF
  335. ;;
  336. *p*)
  337. while read s r foo; do
  338. profilesize="${size:-${s}p}"
  339. framerate="${framerate:-$r}"
  340. done << EOF
  341. $(echo "$profile" | perl -Fp -anE 'say join " ", @F')
  342. EOF
  343. ;;
  344. *)
  345. profilesize="$profile"
  346. ;;
  347. esac
  348. size=${size:-$profilesize}
  349. case "$size" in
  350. qvga) size=320x240;;
  351. hvga) size=480x360;;
  352. vga) size=640x480;;
  353. svga) size=800x600;;
  354. xga) size=1024x768;;
  355. 240p|wqvga) size=424x240;;
  356. 360p|nhd) size=640x360;;
  357. 480p|wvga) size=848x480;;
  358. 576p|wsvga) size=1024x576;;
  359. 720p|wxga|hd) size=1280x720;;
  360. esac
  361. if [ -n "$size" ]; then
  362. while read w h foo; do
  363. width="${width:-$w}"
  364. height="${height:-$h}"
  365. done << EOF
  366. $(echo "$size" | perl -Fx -anE 'say join " ", @F')
  367. EOF
  368. if [ -z "$width" ] || [ -z "$height" ]; then
  369. exit1 "Failed to parse size \"$size\"."
  370. fi
  371. fi
  372. case "$framerate" in
  373. */*)
  374. while read n d foo; do
  375. framerate_num="${framerate_num:-$n}"
  376. framerate_den="${framerate_den:-$d}"
  377. done << EOF
  378. $(echo "$framerate" | perl -F/ -anE 'say join " ", @F')
  379. EOF
  380. ;;
  381. ?*)
  382. framerate_num="$framerate"
  383. framerate_den=1
  384. ;;
  385. esac
  386. # resolve input size and framerate (needed for computing bitrate)
  387. while read w h r s foo; do
  388. width_in="${width_in:-$w}"
  389. height_in="${height_in:-$h}"
  390. framerate_in="${framerate_in:-$r}"
  391. scantype_in="${scantype_in:-$s}"
  392. done << EOF
  393. $(mediainfo --Inform="Video;%Width% %Height% %FrameRate% %ScanType%" \
  394. "$infile_first")
  395. EOF
  396. [ Progressive = "$scantype_in" ] || do_deinterlace=yes
  397. case "$video" in
  398. talkinghead)
  399. refbpp="${refbpp:-0.1}"
  400. x264tune=film
  401. ;;
  402. action)
  403. refbpp="${refbpp:-0.15}"
  404. x264tune=film
  405. ;;
  406. '')
  407. refbpp="${refbpp:-0.12}"
  408. ;;
  409. *) exit1 "Unknown video style \"$video\".";;
  410. esac
  411. for format in $(echo "$formats" | sed -e 's/,/ /g'); do
  412. case $format in
  413. theora|ogg) ogg=yes;;
  414. h264|mp4) mp4=yes;;
  415. vp8|webm) webm=yes;;
  416. vp9) vp9=yes;;
  417. *) exit1 "Unknown format \"$format\".";;
  418. esac
  419. done
  420. _width="${width:-$width_in}"
  421. _height="${height:-$height_in}"
  422. if [ -n "$_width" ] && [ -n "$_height" ]; then
  423. _pixels="$((_width*_height))"
  424. fi
  425. _frames="${framerate:-$framerate_in}"
  426. webm_qmin=0
  427. webm_qmax=63
  428. webm_lag=16
  429. webm_tokenparts_log2=0
  430. if [ -n "$_pixels" ] && [ $_pixels -ge $((1024*768)) ]; then
  431. webm_qmin=11
  432. webm_qmax=51
  433. webm_tokenparts_log2=2
  434. if [ -n "$_frames" ] && [ $_frames -gt 40 ]; then
  435. webm_lag=25
  436. profile_vp8=1
  437. profile_vp9=1
  438. fi
  439. fi
  440. # compute average bitrate from reference data and "power of .75" rule
  441. if [ -n "$_pixels" ] && [ -n "$_frames" ]; then
  442. bitrate_h264=$(perl -E '$refsize=640*360;' \
  443. -E "say int( +(($_pixels/\$refsize)**0.75*\$refsize*$_frames*$refbpp) )")
  444. bitrate_theora=$bitrate_h264 # FIXME
  445. bitrate_vp8=$(perl -E "say int( +($bitrate_h264*$factor_vp8) )") #"
  446. bitrate_vp9=$(perl -E "say int( +($bitrate_h264*$factor_vp9) )") #"
  447. fi
  448. # default per-codec-channel bitrates
  449. quality_vorbis=3
  450. bitrate_opus=48
  451. quality_lame=6
  452. bitrate_lame=64
  453. bitrate_aac=64
  454. case "$audio" in
  455. music)
  456. opusapp=audio
  457. ;;
  458. speech)
  459. mono=yes
  460. quality_vorbis=2
  461. bitrate_opus=32
  462. quality_lame=7
  463. bitrate_lame=48
  464. opusapp=voip
  465. ;;
  466. silence)
  467. silence=yes
  468. ;;
  469. '')
  470. :
  471. ;;
  472. *) exit1 "Unknown audio style \"$audio\".";;
  473. esac
  474. which ffprobe > /dev/null && ffprobe=ffprobe || ffprobe=avprobe
  475. channels=$($ffprobe -v warning -show_streams "$infile_first" \
  476. | perl -ne 's/channels=// and print $_' || echo -1)
  477. # adapt channel count and flags to reflect actual downmix/silence need
  478. if [ -n "$stereo" ]; then
  479. if [ $channels -gt 2 ]; then
  480. channels=2
  481. else
  482. stereo=
  483. fi
  484. elif [ -n "$mono" ]; then
  485. if [ $channels -gt 1 ]; then
  486. channels=1
  487. else
  488. mono=
  489. fi
  490. elif [ -n "$silence" ]; then
  491. if [ $channels -gt 0 ]; then
  492. channels=0
  493. else
  494. silence=
  495. fi
  496. fi
  497. [ -z "$silence" ] || channels=
  498. if [ -n "$stereo$mono" ]; then
  499. # melt cannot downmix with (stereo?) filters applied (bug#763911)
  500. if [ -n "$audioprefilters$compress$loudness$limit$filters" ]; then
  501. if [ -z "${webm:+$use_oggenc}${webm_vp9:+$use_opusenc}" ]; then
  502. downmix_ffmpeg=yes
  503. else
  504. downmix_oggenc=yes
  505. downmix_oggenc=yes
  506. fi
  507. else
  508. downmix_melt=yes
  509. fi
  510. fi
  511. encoder_vp8=libvpx
  512. encoder_vp9=libvpx-vp9
  513. encoder_h264=libx264
  514. for vformat in vp8 vp9 h264; do
  515. [ -z "$no_bitrate" ] || eval "no_bitrate_$vformat=yes"
  516. eval "[ -n \"$no_bitrate\$no_bitrate_$vformat\" ] || do_bitrate_$vformat=yes"
  517. eval "[ -z \"$no_q\$no_q_$vformat\" ] || q_$vformat="
  518. [ -z "$q" ] || eval "q_$vformat=$q"
  519. eval "[ -n \"\$q_$vformat\" ] || no_q_$vformat=yes"
  520. [ -z "$gpu" ] || eval "encoder_$vformat=${vformat}_$gpu"
  521. # melt supports dual-pass only for h.264
  522. [ h264 = "$vformat" ] || [ -n "$vpxenc" ] || eval "[ -z \"$multipass\" ] || use_ffmpeg_$vformat=yes"
  523. done
  524. [ -n "$use_ffmpeg_h264" ] || use_melt_h264=yes
  525. if [ -n "$use_ffmpeg_vp8$use_ffmpeg_vp9$use_vpxenc" ]; then
  526. [ -n "$use_oggenc" ] || use_ffmpeg_ogg=yes
  527. [ -n "$use_opusenc" ] || use_ffmpeg_opus=yes
  528. [ -z "$use_oggenc$use_opusenc" ] || use_wav=yes
  529. [ -z "$use_ffmpeg_ogg$use_ffmpeg_opus" ] || use_matroska=yes
  530. fi
  531. [ -z "$gpu" ] || echo >&2 "GPU platform enabled: $gpu"
  532. # gpu options
  533. _melt_gpu_init=${gpu:+ ${gpu}_device=$gpudevice}
  534. _ffmpeg_gpu_vaapi_init="-${gpu}_device $gpudevice"
  535. _ffmpeg_gpu_qsv_init="-init_hw_device qsv=hw:$gpudevice -filter_hw_device hw"
  536. _ffmpeg_gpu_init="${gpu_vaapi:+ ${_ffmpeg_gpu_vaapi_init}}${gpu_qsv:+ ${_ffmpeg_gpu_qsv_init}}"
  537. _ffmpeg_gpu_vaapi_filter="-vf 'format=nv12|$gpu,hwupload'"
  538. _ffmpeg_gpu_qsv_filter="-vf 'hwupload=extra_hw_frames=64,format=qsv'"
  539. _ffmpeg_gpu_filter="${gpu_vaapi:+ ${_ffmpeg_gpu_vaapi_filter}}${gpu_qsv:+ ${_ffmpeg_gpu_qsv_filter}}"
  540. # generic options
  541. melt="melt -progress$_melt_gpu_init"
  542. which ffmpeg > /dev/null && ffmpeg=ffmpeg || ffmpeg=avconv
  543. ffmpeg_alone="$ffmpeg -threads auto -y -v info -stats$_ffmpeg_gpu_init"
  544. ffmpeg_chained="$ffmpeg -threads auto -y -v warning$_ffmpeg_gpu_init"
  545. vpxenc_chained="vpxenc --quiet ${processors:+-t $((processors-1))}"
  546. oggenc="oggenc"
  547. opusenc="opusenc"
  548. _melt_infiles="${notsample:+$infiles}${sample:+$infile_first in=$((samplestart)) out=$((samplestart + samplelength))}"
  549. # filter options
  550. _melt_video="${no_gpu:+progressive=1${framerate:+ frame_rate_num="$framerate_num" frame_rate_den="$framerate_den"}${size:+ s=${width:+$width}x${height:+$height}}${aspect:+ aspect=$aspect}}"
  551. _ffmpeg_video="${no_gpu:+${do_deinterlace:+-filter:v yadif}${framerate:+ -r $framerate_num/$framerate_den}${size:+ -s ${width:+$width}x${height:+$height}}${aspect:+ -aspect $aspect}}"
  552. _melt_downmix="${downmix_melt:+ac=$channels}"
  553. _ffmpeg_downmix="${downmix_ffmpeg:+-ac $channels}"
  554. # FIXME: how to downmix to stereo?
  555. _oggenc_downmix="${downmix_oggenc:+${mono:+--downmix}}"
  556. _opusenc_downmix="${downmix_opusenc:+${stereo:+--downmix-stereo}${mono:+--downmix-mono}}"
  557. # limit (i.e. avoid peaks "clipping")
  558. _melt_postfilters_audio="${limit:+-filter ladspa.1077}"
  559. # codec bitrate options
  560. _melt_bitrate_vp8="${no_q_vp8:+ vb=$bitrate_vp8} minrate=$((bitrate_vp8/20)) maxrate=$((bitrate_vp8*12))"
  561. _ffmpeg_bitrate_vp8="${no_q_vp8:+-b:v $bitrate_vp8} -minrate $((bitrate_vp8/20)) -maxrate $((bitrate_vp8*12))"
  562. _vpxenc_bitrate_vp8="--target-bitrate=$((bitrate_vp8/1000)) --minsection-pct=5 --maxsection-pct=1200"
  563. _melt_bitrate_vp9="${no_q_vp9:+ vb=$bitrate_vp9} minrate=$((bitrate_vp9/20)) maxrate=$((bitrate_vp9*12))"
  564. _ffmpeg_bitrate_vp9="${no_q_vp9:+-b:v $bitrate_vp9} -minrate $((bitrate_vp9/20)) -maxrate $((bitrate_vp9*12))"
  565. _vpxenc_bitrate_vp9="--target-bitrate=$((bitrate_vp9/1000)) --minsection-pct=5 --maxsection-pct=1200"
  566. # codec low-level options
  567. _melt_misc_vp8="qmin=$webm_qmin qmax=$webm_qmax g=120 deadline=good cpu-used=$cpu_vp8${profile_vp8:+ vprofile=$profile_vp8} auto-alt-ref=1 lag-in-frames=$webm_lag arnr-maxframes=7 arnr-strength=5 arnr-type=centered"
  568. _ffmpeg_misc_vp8="-qmin $webm_qmin -qmax $webm_qmax -g 120 -deadline good -cpu-used $cpu_vp8${profile_vp8:+ -profile:v $profile_vp8} -auto-alt-ref 1 -lag-in-frames $webm_lag -arnr-maxframes 7 -arnr-strength 5 -arnr-type centered"
  569. _vpxenc_misc_vp8="--min-q=$webm_qmin --max-q=$webm_qmax --kf-max-dist=120 --good --cpu-used=$cpu_vp8${profile_vp8:+ --profile=$profile_vp8} --token-parts=$webm_tokenparts_log2 --auto-alt-ref=1 --lag-in-frames=$webm_lag --arnr-maxframes=7 --arnr-strength=5 --arnr-type=3"
  570. _melt_misc_vp9="qmin=$webm_qmin qmax=$webm_qmax g=120 deadline=good cpu-used=$cpu_vp9${profile_vp9:+ vprofile=$profile_vp9} auto-alt-ref=1 lag-in-frames=$webm_lag arnr-maxframes=7 arnr-strength=5 arnr-type=centered"
  571. _ffmpeg_misc_vp9="-qmin $webm_qmin -qmax $webm_qmax -g 120 -deadline good -cpu-used $cpu_vp9${profile_vp9:+ -profile:v $profile_vp9} -auto-alt-ref 1 -lag-in-frames $webm_lag -arnr-maxframes 7 -arnr-strength 5 -arnr-type centered"
  572. _vpxenc_misc_vp9="--min-q=$webm_qmin --max-q=$webm_qmax --kf-max-dist=120 --good --cpu-used=$cpu_vp9${profile_vp9:+ --profile=$profile_vp9} --tile-columns=$webm_tokenparts_log2 --tile-rows=$webm_tokenparts_log2 --auto-alt-ref=1 --lag-in-frames=$webm_lag --arnr-maxframes=7 --arnr-strength=5 --arnr-type=3"
  573. # codec options
  574. # emulate VP8 Constant Quality using "loose" Constrained Quality
  575. _melt_theora="vcodec=libtheora${bitrate_theora:+ vb=$bitrate_theora} qscale=$q_theora"
  576. _melt_vp8="vcodec=$encoder_vp8${pre_vp8:+ vpreset=$pre_vp8}${preset_vp8:+ preset=$preset_vp8}${do_bitrate_vp8:+ $_melt_bitrate_vp8}${q_vp8:+ ${no_bitrate_vp8:+vb=$((bitrate_vp8*10)) }$qkey_vp8=$q_vp8} $_melt_misc_vp8"
  577. _ffmpeg_vp8="-c:v $encoder_vp8${pre_vp8:+ -vpre $pre_vp8}${preset_vp8:+ preset $preset_vp8}${do_bitrate_vp8:+ $_ffmpeg_bitrate_vp8}${q_vp8:+ ${no_bitrate_vp8:+-b:v $((bitrate_vp8*10)) }-$qkey_vp8 $q_vp8} $_ffmpeg_misc_vp8"
  578. _vpxenc_vp8="--codec=vp8${do_bitrate_vp8:+ $_vpxenc_bitrate_vp8} --end-usage=${no_q_vp8:+vbr}${q_vp8:+cq --cq-level=$q_vp8} $_vpxenc_misc_vp8"
  579. _melt_vp9="vcodec=$encoder_vp9${pre_vp9:+ vpreset=$pre_vp9}${preset_vp9:+ preset=$preset_vp9}${do_bitrate_vp9:+ $_melt_bitrate_vp9}${q_vp9:+ ${no_bitrate_vp9:+vb=0 }$qkey_vp9=$q_vp9} $_melt_misc_vp9"
  580. _ffmpeg_vp9="-c:v $encoder_vp9${pre_vp9:+ -vpre $pre_vp9}${preset_vp9:+ -preset $preset_vp9}${do_bitrate_vp9:+ $_ffmpeg_bitrate_vp9}${q_vp9:+ ${no_bitrate_vp9:+-b:v 0 }-$qkey_vp9 $q_vp9} $_ffmpeg_misc_vp9"
  581. _vpxenc_vp9="--codec=vp9${do_bitrate_vp9:+ $_vpxenc_bitrate_vp9} --end-usage=${no_q_vp9:+vbr}${q_vp9:+cq --cq-level=$q_vp9} $_vpxenc_misc_vp8"
  582. _melt_h264="vcodec=$encoder_h264${preset_h264:+ vpreset=$preset_h264}${profile_h264:+ vprofile=$profile_h264}${x264tune:+ tune=$x264tune}${do_bitrate_h264:+ maxrate=$bitrate_h264${no_gpu:+ bufsize=$((bitrate_h264*2))}}${q_h264:+ $qkey_h264=$q_h264} threads=0${no_gpu:+ movflags=+faststart}"
  583. _ffmpeg_h264="-c:v $encoder_h264${preset_h264:+ -preset $preset_h264}${profile_h264:+ -profile:v $profile_h264}${x264tune:+ -tune $x264tune}${do_bitrate_h264:+ -maxrate $bitrate_h264${no_gpu:+ -bufsize $((bitrate_h264*2))}}${q_h264:+ -$qkey_h264 $q_h264}${no_gpu:+ -movflags +faststart}"
  584. _melt_pcm="$_melt_downmix acodec=pcm_s16le"
  585. _melt_vorbis="$_melt_downmix acodec=libvorbis aq=$quality_vorbis"
  586. _ffmpeg_vorbis="$_ffmpeg_downmix -c:a libvorbis -aq $quality_vorbis"
  587. _oggenc_vorbis="$_oggenc_downmix -q $quality_vorbis"
  588. _melt_opus="$_melt_downmix acodec=libopus ab=$((channels*bitrate_opus))k${opusapp:+ application=$opusapp}"
  589. _ffmpeg_opus="$_ffmpeg_downmix -c:a libopus -b:a $((channels*bitrate_opus))k${opusapp:+ -application $opusapp}"
  590. _opusenc_opus="$_opusenc_downmix --bitrate $((channels*bitrate_opus))"
  591. _melt_mp3="$_melt_downmix acodec=libmp3lame${use_lame_abr:+ aq=$quality_lame}${use_lame_cbr:+ ab=$((channels*bitrate_lame))k}"
  592. _ffmpeg_mp3="$_ffmpeg_downmix -c:a libmp3lame${use_lame_abr:+ -q:a $quality_lame}${use_lame_cbr:+ -b:a $((channels*bitrate_lame))k}"
  593. _melt_aac="$_melt_downmix acodec=aac ab=$((channels*bitrate_aac))k"
  594. _ffmpeg_aac="$_ffmpeg_downmix -c:a aac -b:a $((channels*bitrate_aac))k"
  595. # container options
  596. _melt_stdout="-consumer avformat:pipe:1 f=yuv4mpegpipe $_melt_video pix_fmt=yuv420p an=1 audio_off=1"
  597. _ffmpeg_stdin="-f yuv4mpegpipe -i pipe:0$_ffmpeg_gpu_filter"
  598. _ffmpeg_rawvideo="-f rawvideo"
  599. _melt_wav="f=wav $_melt_pcm vn=1 video_off=1"
  600. _ffmpeg_wav_in="-f wav"
  601. _oggenc_wav_in=
  602. _opusenc_wav_in=
  603. _melt_matroska_pcm="f=matroska $_melt_downmix $_melt_pcm vn=1 video_off=1"
  604. _ffmpeg_matroska_pcm_in="-f matroska"
  605. _melt_ogg="f=ogg $_melt_video $_melt_theora ${silence:+an=1 audio_off=1}${channels:+$_melt_vorbis}"
  606. _ffmpeg_ogg_in="-f ogg"
  607. _ffmpeg_ogg_vorbis="-f ogg -vn $_ffmpeg_vorbis"
  608. _ffmpeg_ogg_opus="-f ogg -vn $_ffmpeg_opus"
  609. _melt_webm="f=webm $_melt_video $_melt_vp8 ${silence:+an=1 audio_off=1}${channels:+$_melt_vorbis}"
  610. _ffmpeg_webm="-f webm $_ffmpeg_video $_ffmpeg_vp8 ${silence:+-an}${channels:+ $_ffmpeg_vorbis}"
  611. _ffmpeg_webm_in="-f webm"
  612. _ffmpeg_webm_onlyvideo="-f webm $_ffmpeg_video $_ffmpeg_vp8 -an"
  613. _ffmpeg_webm_keepvideo="-f webm $_ffmpeg_video -c:v copy ${silence:+-an}${channels:+$_ffmpeg_vorbis}"
  614. _ffmpeg_webm_keepvideo_opus="-f webm $_ffmpeg_video -c:v copy ${silence:+-an}${channels:+$_ffmpeg_opus}"
  615. _melt_webm_vp9="f=webm $_melt_video $_melt_vp9 ${silence:+an=1 audio_off=1}${channels:+$_melt_opus}"
  616. _ffmpeg_webm_vp9="-f webm $_ffmpeg_video $_ffmpeg_vp9 ${silence:+-an}${channels:+$_ffmpeg_opus}"
  617. _ffmpeg_webm_onlyvideo_vp9="-f webm $_ffmpeg_video $_ffmpeg_vp9 -an"
  618. _melt_mp4="f=mp4 $_melt_video $_melt_h264 ${silence:+an=1 audio_off=1}${channels:+${use_mp3:+$_melt_mp3}${use_aac:+$_melt_aac}}"
  619. _ffmpeg_mp4="-f mp4 $_ffmpeg_video $_ffmpeg_h264 ${silence:+-an}${channels:+${use_mp3:+$_ffmpeg_mp3}${use_aac:+$_ffmpeg_aac}}"
  620. _ffmpeg_mp4_onlyvideo="-f mp4 $_ffmpeg_video $_ffmpeg_h264 -an"
  621. _ffmpeg_mp4_keepvideo="-f mp4 $_ffmpeg_video -c:v copy ${silence:+-an}${channels:+$_ffmpeg_mp3}"
  622. _ffmpeg_mp4_keepvideo_aac="-f mp4 $_ffmpeg_video -c:v copy ${silence:+-an}${channels:+$_ffmpeg_aac}"
  623. _melt_img="f=image2 $_melt_video"
  624. _melt_loudness="$loudness_data"
  625. if [ -n "$loudness" ] && [ -z "$silence$_melt_loudness" ]; then
  626. echo >&2 "Analyzing audio dynamics..."
  627. $melt $_melt_infiles \
  628. $audioprefilters -filter loudness $filters \
  629. -consumer xml:$stem.xml video_off=1 all=1
  630. _melt_loudness="$(perl -n \
  631. -e 'm!<(property) name="results">([^<]+)</\1>! and print $2' \
  632. $stem.xml)"
  633. echo >&2 "Loudness data: $_melt_loudness"
  634. fi
  635. if [ -n "$multipass" ] && [ -n "${webm:+$use_vpxenc$use_ffmpeg_vp8$use_oggenc}${vp9:+$use_vpxenc$use_ffmpeg_vp9$use_opusenc}${mp4:+$use_ffmpeg_h264}" ]; then
  636. echo >&2 "Analyzing video complexity..."
  637. if [ -n "$use_vpxenc" ]; then
  638. $melt $_melt_infiles $filters $_melt_stdout \
  639. | pee \
  640. ${webm:+"$vpxenc_chained - $_vpxenc_vp8 \
  641. -p 2 --pass=1 --fpf=${stem}_vp8.log -o /dev/null"} \
  642. ${vp9:+"$vpxenc_chained - $_vpxenc_vp9 \
  643. -p 2 --pass=1 --fpf=${stem}_vp9.log -o /dev/null"} \
  644. ${mp4:+${use_ffmpeg_h264:+$_ffmpeg_rawvideo $_ffmpeg_h264 -an \
  645. -pass 1 -passlogfile ${stem}_h264 /dev/null}}
  646. [ -z "$mp4" ] || [ -n "$use_ffmpeg_h264" ] || mv -f ${stem}_h264-*.log ${stem}_h264_2pass.log
  647. else
  648. $melt $_melt_infiles $filters $_melt_stdout \
  649. | $ffmpeg_chained $_ffmpeg_stdin \
  650. ${webm:+$_ffmpeg_rawvideo $_ffmpeg_vp8 -an \
  651. -pass 1 -passlogfile ${stem}_vp8 /dev/null} \
  652. ${vp9:+$_ffmpeg_rawvideo $_ffmpeg_vp9 -an \
  653. -pass 1 -passlogfile ${stem}_vp9 /dev/null} \
  654. ${mp4:+${use_ffmpeg_h264:+$_ffmpeg_rawvideo $_ffmpeg_h264 -an \
  655. -pass 1 -passlogfile ${stem}_h264 /dev/null}}
  656. [ -z "$webm" ] || [ -n "$use_ffmpeg_vp8" ] || mv -f ${stem}_vp8-*.log ${stem}_vp8_2pass.log
  657. [ -z "$vp9" ] || [ -n "$use_ffmpeg_vp9" ] || mv -f ${stem}_vp9-*.log ${stem}_vp9_2pass.log
  658. [ -z "$mp4" ] || [ -n "$use_ffmpeg_h264" ] || mv -f ${stem}_h264-*.log ${stem}_h264_2pass.log
  659. fi
  660. fi
  661. if [ -n "${webm:+$use_vpxenc$use_ffmpeg_vp8$use_oggenc}${vp9:+$use_vpxenc$use_ffmpeg_vp9$use_opusenc}${mp4:+$use_ffmpeg_h264}" ]; then
  662. echo >&2 "Encoding video${channels:+ and extracting audio}, as discrete files..."
  663. $melt $_melt_infiles \
  664. ${channels:+$audioprefilters \
  665. ${_melt_loudness:+-filter loudness program=$lufs \
  666. results="$_melt_loudness"}} \
  667. $filters${channels:+ $_melt_postfilters_audio} \
  668. ${ogg:+-consumer avformat:$stem.ogv $_melt_ogg} \
  669. ${mp4:+${use_melt_h264:+-consumer avformat:$stem.mp4 $_melt_mp4}} \
  670. ${channels:+${use_wav:+-consumer avformat:$stem.wav \
  671. $_melt_wav}} \
  672. ${channels:+${use_matroska:+-consumer avformat:$stem.mkv \
  673. $_melt_matroska_pcm}} \
  674. $_melt_stdout \
  675. | pee \
  676. ${webm:+${use_ffmpeg_vp8:+"$ffmpeg_chained \
  677. $_ffmpeg_stdin $_ffmpeg_webm_onlyvideo \
  678. ${multipass:+-pass 2 -passlogfile ${stem}_vp8} \
  679. ${stem}${channels:+_silent}.webm"}} \
  680. ${webm:+${use_vpxenc:+"$vpxenc_chained - $_vpxenc_vp8 \
  681. ${singlepass:+-p 1} \
  682. ${multipass:+-p 2 --pass=2 --fpf=${stem}_vp8.log} \
  683. -o ${stem}${channels:+_silent}.webm"}} \
  684. ${vp9:+${use_ffmpeg_vp9:+"$ffmpeg_chained \
  685. $_ffmpeg_stdin $_ffmpeg_webm_onlyvideo_vp9 \
  686. ${multipass:+-pass 2 -passlogfile ${stem}_vp9} \
  687. ${stem}_vp9${channels:+_silent}.webm"}} \
  688. ${vp9:+${use_vpxenc:+"$vpxenc_chained - $_vpxenc_vp9 \
  689. ${singlepass:+-p 1} \
  690. ${multipass:+-p 2 --pass=2 --fpf=${stem}_vp9.log} \
  691. -o ${stem}_vp9${channels:+_silent}.webm"}} \
  692. ${mp4:+${use_ffmpeg_h264:+"$ffmpeg_chained \
  693. $_ffmpeg_stdin $_ffmpeg_mp4_onlyvideo \
  694. ${multipass:+-pass 2 -passlogfile ${stem}_h264} \
  695. ${stem}${channels:+_silent}.mp4"}}
  696. if [ -n "${webm:+$use_vpxenc$use_ffmpeg_vp8$use_oggenc}" ] && [ -n "$channels" ]; then
  697. echo >&2 "Encoding Vorbis audio and muxing with VP8 video..."
  698. if [ -n "$use_oggenc" ]; then
  699. $oggenc $_oggenc_wav_in $_oggenc_vorbis -o - $stem.wav \
  700. | $ffmpeg_chained \
  701. $_ffmpeg_webm_in -i ${stem}_silent.webm \
  702. $_ffmpeg_ogg_in -i pipe:0 \
  703. $_ffmpeg_webm_keepvideo $stem.webm
  704. else
  705. $ffmpeg_alone $_ffmpeg_webm_in -i ${stem}_silent.webm \
  706. $_ffmpeg_matroska_wav_in -i $stem.mkv \
  707. $_ffmpeg_webm_keepvideo ${stem}.webm
  708. fi
  709. fi
  710. if [ -n "${vp9:+$use_vpxenc$use_ffmpeg_vp9$use_opusenc}" ] && [ -n "$channels" ]; then
  711. echo >&2 "Encoding Opus audio and muxing with WebM/VP9 video..."
  712. if [ -n "$use_opusenc" ]; then
  713. $opusenc $_opusenc_wav_in $_opusenc_opus -o - $stem.wav \
  714. | $ffmpeg_chained \
  715. $_ffmpeg_webm_in -i ${stem}_vp9_silent.webm \
  716. $_ffmpeg_ogg_in -i pipe:0 \
  717. $_ffmpeg_webm_keepvideo_opus ${stem}_vp9.webm
  718. else
  719. $ffmpeg_alone $_ffmpeg_webm_in -i ${stem}_vp9_silent.webm \
  720. $_ffmpeg_matroska_wav_in -i $stem.mkv \
  721. $_ffmpeg_webm_keepvideo_opus ${stem}_vp9.webm
  722. fi
  723. fi
  724. if [ -n "${mp4:+$use_ffmpeg_h264}" ] && [ -n "$channels" ]; then
  725. if [ -n "$use_mp3" ]; then
  726. echo "Encoding MP3 audio and muxing with h.264 video..."
  727. $ffmpeg_alone $_ffmpeg_mp4_in -i ${stem}_silent.mp4 \
  728. $_ffmpeg_matroska_wav_in -i $stem.mkv \
  729. $_ffmpeg_mp4_keepvideo ${stem}.mp4
  730. else
  731. echo "Encoding AAC audio and muxing with h.264 video..."
  732. $ffmpeg_alone $_ffmpeg_mp4_in -i ${stem}_silent.mp4 \
  733. $_ffmpeg_matroska_wav_in -i $stem.mkv \
  734. $_ffmpeg_mp4_keepvideo_aac ${stem}.mp4
  735. fi
  736. fi
  737. else
  738. echo >&2 "Encoding video${channels:+ and audio}, at once..."
  739. $melt $_melt_infiles \
  740. ${channels:+$audioprefilters \
  741. ${_melt_loudness:+-filter loudness program=$lufs \
  742. results="$_melt_loudness"}} \
  743. $filters${channels:+ $_melt_postfilters_audio} \
  744. ${ogg:+-consumer avformat:$stem.ogv $_melt_ogg} \
  745. ${webm:+-consumer avformat:$stem.webm $_melt_webm \
  746. ${multipass:+pass=2 passlogfile=${stem}_vp8}} \
  747. ${vp9:+-consumer avformat:${stem}_vp9.webm $_melt_webm_vp9 \
  748. ${multipass:+pass=2 passlogfile=${stem}_vp9}} \
  749. ${mp4:+-consumer avformat:$stem.mp4 $_melt_mp4}
  750. fi
  751. # cleanup encoding cruft
  752. rm -f $stem.xml $stem.wav $stem.mkv ${stem}_*.log ${stem}_*silent.webm
  753. # JPEG preview
  754. $melt $infile_first in=$stillframe out=$stillframe \
  755. -group $filters \
  756. -consumer avformat:$stem.jpg $_melt_img
  757. __width="${_width:+ width=\"$_width\"}"
  758. __height="${_height:+ height=\"$_height\"}"
  759. # Flash object needs extra space for controllers
  760. __heightplus=${_height:+ height=\"$((_height+4))\"}
  761. _source_ogg="<source src=\"$stem.ogv\" type=\"video/ogg\" />"
  762. _source_webm="<source src=\"$stem.webm\" type=\"video/webm\" />"
  763. _source_vp9="<source src=\"${stem}_vp9.webm\" type='video/ogg; codecs=\"vp9, opus\"' />"
  764. _source_mp4="<source src=\"$stem.mp4\" type=\"video/mp4\" />"
  765. [ -z "$flashplayer" ] || flash=yes
  766. [ -n "$mp4" ] || [ -z "$flash" ] || error1 "Cannot enable flash when mp4 format is disabled."
  767. _object_flash="<object$__width$__heightplus type=\"application/x-shockwave-flash\" data=\"$flashplayer.swf\">"
  768. _param_name="<param name=\"movie\" value=\"$flashplayer.swf\" />"
  769. _param_flashvars="<param name=\"flashvars\" value=\"image=$stem.jpg&amp;file=$stem.mp4\" />"
  770. __oggfile=${ogg:+open format <a href=\"$stem.ogv\">Ogg</a>}
  771. __webmfile=${webm:+open format <a href=\"$stem.webm\">WebM (VP8)</a>}
  772. __vp9file=${vp9:+open format <a href=\"${stem}_vp9.webm\">WebM (VP9/Opus)</a>}
  773. __mp4file=${mp4:+closed format <a href=\"$stem.mp4\">MPEG-4</a>}
  774. cat >"$stem.html" <<EOF
  775. <!-- Video for Everybody, Kroc Camen of Camen Design -->
  776. <video$__width$__height preload controls>
  777. ${mp4:+$_source_mp4
  778. }${vp9:+$_source_vp9
  779. }${webm:+$_source_webm
  780. }${ogg:+$_source_ogg
  781. }${flash:+$_object_flash
  782. $_param_name
  783. $_param_flashvars
  784. }<img src="$stem.jpg"$__width$__height alt="$title"
  785. title="No video playback capabilities, please download the video below" />
  786. ${flash:+</object>
  787. }</video>
  788. <p><strong>Download Video:</strong><ul>
  789. ${vp9:+<li>$__vp9file
  790. }${webm:+<li>$__webmfile
  791. }${ogg:+<li>$__oggfile
  792. }${mp4:+<li>$__mp4file
  793. }</ul></p>
  794. EOF