How do you create a webm file?

ffmpeg

File: 1471762134947.jpg (33KB, 495x495px) Image search: [Google]

33KB, 495x495px

>google

dumb frogposter

touch file.webm

>>58943888
dumb "dumb frogposter" poster

take a .mp4 video and edit the name my right clicking it and delete the '.mp4' and change it to '.webm' then click 'save'.
Only works on Windows 10 (it's what I use so that's my only experience)

ffmpeg -i your shit.mkv -ss 01:45.747 -to 01:55.633 -c:v libvpx -b:v 2M -vf scale=1280:-1 -an -quality best -threads 8 -f WebM mywebm.webm

>>58943869
>ffmpeg
this, now fuck off

its in their main page

File: 1487085481858.webm (1MB, 720x480px) Image search: [Google]

1MB, 720x480px

>>58943858

melt 1487085481858.png out=359 -attach affine transition.rotate_x=1 transition.rotate_z=4 -consumer avformat:1487085481858.webm an=1 vb=1M

>>58943929
that only creates an empty file with the ".webm" extension, which is not what OP asked for.
OP asked for a webm file

>>58944131
An empty file with the webm extension is a webm file. It's just an empty one.

>>58943858
Like this
Someone create a webm of this dbz pls
https://www.youtube.com/watch?v=H_zbylgxo9E

$ file file.webm
file.webm: empty
$ file fatty.webm
fatty.webm: WebM

File: 1472532864246s.jpg (9KB, 250x189px) Image search: [Google]

9KB, 250x189px

>>58944142


heh nice man

>>58943858
/g/ doesn't stand for google

>>58943858

ffmpeg -i input.mkv -ss 00:00:10.000 -to 00:00:20.000 -c:v libvpx -crf 4 -b:v 1500K -an output.webm

-ss start time
-crf quality (4 is best)
-b:v bitrate
-an no audio

>>58943941
dumb "dumb "dumb frogposter" poster" poster

>>58943858
install gentoo

I believe the original poster to be of the homosexual persuasion

>>58944157
here you go, with sound even:
>>>/wsg/1544081

>>58943929
>man touch
GNU/Linux confirmed for homos.

How do I achieve exact size? 2 pass encoding does nothing, the ratecontrol does it's own thing.

>>58943858

touch file.webm

>>58943858
http://www.webmproject.org/tools/

>>58944403
men touches are for homos omly
Homo confirmed.

>>58944403
You think man touch is bad then stay away from man finger

$ ffmpeg -ss 01:03:18.752 -i ~/Documents/Torrents/Manchester.by.the.Sea.2016.1080p.WEB-DL.DD5.1.H264-FGT/Manchester.by.the.Sea.2016.1080p.WEB-DL.DD5.1.H264-FGT.mkv -map 0:0 -map 0:1 -c:v libvpx -c:a libvorbis -t 41.25 -b:v .697M -b:a 80k -vf scale=-1:480 -y -sn please.webm
ffmpeg version 3.2.2 Copyright (c) 2000-2016 the FFmpeg developers
  built with Apple LLVM version 8.0.0 (clang-800.0.42.1)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/3.2.2 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-frei0r --enable-libass --enable-libbluray --enable-libcaca --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxvid --enable-opencl --enable-openssl --disable-lzma --enable-libopenjpeg --disable-decoder=jpeg2000 --extra-cflags=-I/usr/local/Cellar/openjpeg/2.1.2/include/openjpeg-2.1 --enable-nonfree --enable-vda
  libavutil      55. 34.100 / 55. 34.100
  libavcodec     57. 64.101 / 57. 64.101
  libavformat    57. 56.100 / 57. 56.100
  libavdevice    57.  1.100 / 57.  1.100
  libavfilter     6. 65.100 /  6. 65.100
  libavresample   3.  1.  0 /  3.  1.  0
  libswscale      4.  2.100 /  4.  2.100
  libswresample   2.  3.100 /  2.  3.100
  libpostproc    54.  1.100 / 54.  1.100
Input #0, matroska,webm, from '/Users/F/Documents/Torrents/Manchester.by.the.Sea.2016.1080p.WEB-DL.DD5.1.H264-FGT/Manchester.by.the.Sea.2016.1080p.WEB-DL.DD5.1.H264-FGT.mkv':
  Metadata:
    title           : Manchester.by.the.Sea.2016.1080p.WEB-DL.DD5.1.H264-FGT
    encoder         : libebml v1.3.4 + libmatroska v1.4.5
    creation_time   : 2017-02-07T05:20:42.000000Z
  Duration: 02:17:31.71, start: 0.000000, bitrate: 5635 kb/s

Chapter #0:0: start 0.000000, end 214.000000
    Metadata:
      title           : 1
    Chapter #0:1: start 214.000000, end 967.000000
    Metadata:
      title           : 2
    Chapter #0:2: start 967.000000, end 1740.000000
    Metadata:
      title           : 3
    Chapter #0:3: start 1740.000000, end 2333.000000
    Metadata:
      title           : 4
    Chapter #0:4: start 2333.000000, end 2908.000000
    Metadata:
      title           : 5
    Chapter #0:5: start 2908.000000, end 3548.000000
    Metadata:
      title           : 6
    Chapter #0:6: start 3548.000000, end 4316.000000
    Metadata:
      title           : 7
    Chapter #0:7: start 4316.000000, end 5021.000000
    Metadata:
      title           : 8
    Chapter #0:8: start 5021.000000, end 5783.000000
    Metadata:
      title           : 9
    Chapter #0:9: start 5783.000000, end 6620.000000
    Metadata:
      title           : 10
    Chapter #0:10: start 6620.000000, end 7363.000000
    Metadata:
      title           : 11
    Chapter #0:11: start 7363.000000, end 7971.000000
    Metadata:
      title           : 12
    Chapter #0:12: start 7971.000000, end 8251.712000
    Metadata:
      title           : 13
    Stream #0:0(eng): Video: h264 (High), yuv420p(tv, bt709, progressive), 1912x1028 [SAR 1:1 DAR 478:257], 23.98 fps, 23.98 tbr, 1k tbn, 2k tbc (default)
    Metadata:
      title           : Manchester.by.the.Sea.2016.1080p.WEB-DL.DD5.1.H264-FGT
    Stream #0:1(eng): Audio: ac3, 48000 Hz, 5.1(side), fltp, 384 kb/s (default)
    Metadata:
      title           : Manchester.by.the.Sea.2016.1080p.WEB-DL.DD5.1.H264-FGT
    Stream #0:2(eng): Subtitle: subrip (default)
    Stream #0:3: Video: mjpeg, yuvj444p(pc, bt470bg/unknown/unknown), 120x176, 90k tbr, 90k tbn, 90k tbc
    Metadata:
      filename        : small_cover.jpg
      mimetype        : image/jpeg

    Stream #0:4: Video: mjpeg, yuvj444p(pc, bt470bg/unknown/unknown), 213x120, 90k tbr, 90k tbn, 90k tbc
    Metadata:
      filename        : small_cover_land.jpg
      mimetype        : image/jpeg
    Stream #0:5: Video: mjpeg, yuvj444p(pc, bt470bg/unknown/unknown), 600x882, 90k tbr, 90k tbn, 90k tbc
    Metadata:
      filename        : cover.jpg
      mimetype        : image/jpeg
    Stream #0:6: Video: mjpeg, yuvj444p(pc, bt470bg/unknown/unknown), 1067x600, 90k tbr, 90k tbn, 90k tbc
    Metadata:
      filename        : cover_land.jpg
      mimetype        : image/jpeg
[libvpx @ 0x7fae1b085400] v1.6.1
[libvorbis @ 0x7fae1b086600] encoder setup failed
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> vp8 (libvpx))
  Stream #0:1 -> #0:1 (ac3 (native) -> vorbis (libvorbis))
Error while opening encoder for output stream #0:1 - maybe incorrect parameters such as bit_rate, rate, width or height

can someone help me figure out why this isn't working?

[Parsed_scale_0 @ 0x7fcfa0700000] w:-1 h:480 flags:'bicubic' interl:0
[graph 0 input from stream 0:0 @ 0x7fcfa0700420] w:1912 h:1028 pixfmt:yuv420p tb:1/1000 fr:24000/1001 sar:1/1 sws_param:flags=2
[Parsed_scale_0 @ 0x7fcfa0700000] w:1912 h:1028 fmt:yuv420p sar:1/1 -> w:893 h:480 fmt:yuv420p sar:229440/229501 flags:0x4
[graph 1 input from stream 0:1 @ 0x7fcfa0618380] tb:1/48000 samplefmt:fltp samplerate:48000 chlayout:0x60f
[libvpx @ 0x7fcfa1027400] v1.6.1
[libvpx @ 0x7fcfa1027400] --prefix=/usr/local/Cellar/libvpx/1.6.1 --disable-dependency-tracking --enable-pic --disable-unit-tests --disable-examples
[libvorbis @ 0x7fcfa1028600] encoder setup failed
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> vp8 (libvpx))
  Stream #0:1 -> #0:1 (ac3 (native) -> vorbis (libvorbis))
Error while opening encoder for output stream #0:1 - maybe incorrect parameters such as bit_rate, rate, width or height

>>58946857
Ran into a similar issue with a file the other day. Can't remember what I did to fix it.

Stream 0:1 is the second stream of your input file. What does mediainfo say your second stream is? I'm guessing audio, in which case, try using -an instead of encoding audio, and see if that executes. If it does, then something's up with how the audio's handled.

Also, try adding -f webm, and

>>58946132
man touch
man finger
man mount

>>58947065
Yeah, the problem is the audio, I just don't understand why/what I can do to fix it

>>58947101
Can you encode the audio separately?

Try extracting it and encoding that directly.

mkvextract tracks file.mkv 2:audio.ac3

ffmpeg -i audio.ac3 -ss whatever -t whatever -c:a libvorbis test.ogg

File: diversity.webm (3MB, 1280x720px) Image search: [Google]

3MB, 1280x720px

ffmpeg -i 'Nella.The.Princess.Knight.S01E03.720p.HDTV.x264-W4F[eztv].mkv' -ss 00:00:00 -t 30 -c:v libvpx -crf 55 -qmin 40 -b:v 0 -an -sn diversity.webm -threads 0

>>58947300
Is this cultural appropriation?

File: sensei.webm (726KB, 1280x720px) Image search: [Google]

726KB, 1280x720px

>>58943858

>>58947312
No its a cartoon about a half black half mexican princess that is also a knight with magical powers that has a white boyfriend that is also an indentured servant.

>>58947395
...neither contained cultures involving medieval royalty, serfdom, or knights.

>>58947417
Cultural appropriation is a white guy getting a gold powder coat on his teeth or wearing a feather headress.

A black chick living in a medieval castle is just fantasy.

>>58947442
...What's the difference?

>>58947513
One is people copying a minority's culture and the other is multicultural fantasy nonsense.

Even if it were a black and mexican monarch living in a castle in real life it wouldn't be cultural appropriation unless you considered feudal lords to be a cultural minority, which they aren't.

>>58947579
>You can't appropriate a culture if they're not a minority

Oh fuck off to /pol/

>>58947610
You can't.

A nigger putting on a business suit isn't offensive.

A white guy born and raised in London putting on African garb and playing with drums in the street is.

>>58947579
I'll appropriate whatever the hell I want. I wanna eat sushi? I will. Watch anime? Yup doin' it. jerkin' it to asian chicks doing black chicks? Last tuesday. I had a taco for lunch and I'ma listen to the blues on the way home from work. And goddamn nothing gives me more of an erection than doing whatever the fuck I want. just like everyone else.

>>58947674
None of those things are cultural appropriation :P

Most of the sushi shit you see was created in the US.

>>58947248
Ok, I figured out the problem.
It seems that the error occurs if I set the audio bitrate below 84k.
I don't understand why though.

>>58947699
Everything was made in the US. Or will me assimilated by it.

>>58947670
It is not offensive.

Learn the difference between being "offended" and something being "offensive"

For instance, your idiocy is offending me. But stupid opinions aren't offensive.

>>58944062
>melt
Is this better than mpv for playback? And mpv too support encoding, although not sure if editing like that.

>>58947700
That's bizarre.

>>58947728
A white guy dressing up like a tribal negro playing with drums wouldn't offend you?

You are a very tolerant person.

>>58947739
I'd find that hilarious.

>>58947699
>>58947670
>>58947579
How the fuck do you even define a cultural minority? Are you acting like America and the West are the only places that matter? How the fuck are places like China and the various African peoples minorities?

File: Big_Mac.png (310KB, 444x507px) Image search: [Google]

310KB, 444x507px

>>58944131
how's that autism?

>>58947739
...What? I'm a normal fucking person.

Sounds like you're the sensitive one.

>Uses Japanese characters in their name
>Talks about cultural appropriation

>>58943858
I'd just google an online converter, ffmpeg is fucking impossible to use unless you have severe autism

>>58947579
Wait do you actually believe this?

>>58947579
My heritage is not a costume.

>>58947732
The two aren't really comparable, melt is not for general playback, it's a command line non-linear video editor.

>>58947753
Well in the scope of cultural appropriation its usually areas where colonization occurs and the indigenous minority still tries to exist.

Like how there are reservations and native american indians in the US, if you copied their culture it would be cultural appropriation.

The tribes wearing vests and top hats is just normal adaptation.

>>58947795
So it's only possible to culturally appropriate various native american cultures.

>>58947857
Its just the easiest example I can think of.
You have to take over an area and then trivialize a culture for it to happen its a pretty specific definition even if the words are ambiguous.

>>58947891
So a Brit can't be accused of cultural appropriation, but an American can.

>>58943858

man ffmpeg

>>58947897
Brits did that shit all over the globe, British Empire colonized a shitload of native lands.

>>58947906

No manual entry for ffmpeg

>>58947930
Britain the country is not a colony.

...This cultural appropriation shit seems really fucking arbitrary and not useful.

>/g/ - Technology & Politics

>>58947994
Britain includes Scotland and Ireland, both of which were colonized by the British.

:3

>>58944319
dumb"dumb "dumb "dumb frogposter" poster" poster"poster

>>58948090
...Ireland is its own sovereign nation, and Scotland, Whales, and Britain are three independent kingdoms that make up the United Kingdom.

File: [HorribleSubs] Re Zero kara Hajimeru Isekai Seikatsu - 04 [1080p].mkv_snapshot_24.30_[2016.05.11_13.30.59].png (2MB, 1920x1080px) Image search: [Google]

2MB, 1920x1080px

>>58948155
>Whales

>>58948155
Britain usually means the United Kingdom.

You gotta say Great Britain to avoid confusion.

>>58944142
Whoa? That's filosophy right here.

>>58948175
No, the UK means the UK.

Britain means Britain.

Arbitrary definitions seem to be your forte, tripfag.