BreadCrumbs: Ffmpeg
Ffmpeg
From Luke Jackson
(Difference between revisions)
| Revision as of 16:21, 18 November 2007 (edit) Ljackson (Talk | contribs) (→MEncoder) ← Previous diff |
Current revision (01:14, 3 April 2022) (edit) Ljackson (Talk | contribs) |
||
| Line 1: | Line 1: | ||
| + | Direct Download M3U8 file playlist stream and convert into local MP4 video file | ||
| + | |||
| + | echo "Enter m3u8 link:";read link;echo "Enter output filename:";read filename;ffmpeg -i "$link" -bsf:a aac_adtstoasc -vcodec copy -c copy -crf 23 $filename.mp4 | ||
| + | |||
| + | <pre> | ||
| + | -bsf:a aac_adtstoasc | ||
| + | |||
| + | bsf = (bit stream filter) | ||
| + | use aac_adtstoasc bsf for a audio streams, this is need if .m3u8 file consists with .ts files and output is .mp4 | ||
| + | reference https://ffmpeg.org/ffmpeg-bitstream-filters.html#aac_005fadtstoasc | ||
| + | |||
| + | -c copy -vcodec copy | ||
| + | |||
| + | skip codec (encode and decode), just demux and mux | ||
| + | I guess .ts and .mp4, for video stream, they are both H.264 codec, just guess. | ||
| + | reference https://ffmpeg.org/ffmpeg.html#Stream-copy | ||
| + | |||
| + | -crf 50 | ||
| + | |||
| + | reference https://trac.ffmpeg.org/wiki/Encode/H.264#CRFExample | ||
| + | the example shows -c:a copy did not re-encode, guess this option is not needed here. | ||
| + | And 0 is lossless, 23 is the default, and 51 is worst quality possible 😢 | ||
| + | </pre> | ||
| + | |||
| + | https://gist.github.com/tzmartin/fb1f4a8e95ef5fb79596bd4719671b5d | ||
| + | |||
| + | |||
| Add Freshrpms repo | Add Freshrpms repo | ||
| Line 29: | Line 56: | ||
| </pre> | </pre> | ||
| - | == MEncoder == | ||
| - | |||
| - | === Summary === | ||
| - | |||
| - | MEncoder is a free command line video decoding, encoding and filtering tool released under the GNU General Public License. It is a close sibling to MPlayer and can convert all the formats that MPlayer understands into a variety of compressed and uncompressed formats using different codecs. | ||
| - | |||
| - | === Installing === | ||
| - | |||
| - | yum install menencoder | ||
| - | |||
| - | === Joining the video clips together === | ||
| - | |||
| - | Mencoder doesn't have a fancy gui for you to get used to, but is a command line application, meaning we just type the commands in on a command line. | ||
| - | |||
| - | To join the files "1.avi" and "2.avi" into the joined file "joined.avi" simply type in the following command | ||
| - | |||
| - | mencoder -oac copy -ovc copy -o "joined.avi" "1.avi" "2.avi" | ||
| - | |||
| - | In the above command -oac copy means "copy the audio stream", -ovc copy means "copy the video stream", and -o "joined.avi" means "output to file joined.avi". | ||
| - | |||
| - | If you want to join more than two clips, then just list as many clips as you want, in the order you want them joined. Remember that the clips need to all be encoded exactly the same, else it won't work. | ||
| - | |||
| - | If your joined clip is going to be larger that 1024Mb ( 1 gigabyte ) then when you come to play back the joined clips, some media players get confused as to how long the clip lasts, so add -noodml to the command line, eg. | ||
| - | |||
| - | mencoder -oac copy -ovc copy -noodml -o "joined.avi" "1.avi" "2.avi" | ||
| - | |||
| - | Also note that most movie players cannot play videos that are larger than 2GB (2048MB) in size, irrespective of whether they are .avi, .mpg or .vob. | ||
| - | It's that simple, and when you are finished you can just delete the mplayer folder, and the application is removed - just remember to move video clips out of the folder first ! | ||
| [[Category:Windows XP]] | [[Category:Windows XP]] | ||
| [[Category:Linux]] | [[Category:Linux]] | ||
| [[Category:Mac OS X]] | [[Category:Mac OS X]] | ||
Current revision
Direct Download M3U8 file playlist stream and convert into local MP4 video file
echo "Enter m3u8 link:";read link;echo "Enter output filename:";read filename;ffmpeg -i "$link" -bsf:a aac_adtstoasc -vcodec copy -c copy -crf 23 $filename.mp4
-bsf:a aac_adtstoasc
bsf = (bit stream filter)
use aac_adtstoasc bsf for a audio streams, this is need if .m3u8 file consists with .ts files and output is .mp4
reference https://ffmpeg.org/ffmpeg-bitstream-filters.html#aac_005fadtstoasc
-c copy -vcodec copy
skip codec (encode and decode), just demux and mux
I guess .ts and .mp4, for video stream, they are both H.264 codec, just guess.
reference https://ffmpeg.org/ffmpeg.html#Stream-copy
-crf 50
reference https://trac.ffmpeg.org/wiki/Encode/H.264#CRFExample
the example shows -c:a copy did not re-encode, guess this option is not needed here.
And 0 is lossless, 23 is the default, and 51 is worst quality possible 😢
https://gist.github.com/tzmartin/fb1f4a8e95ef5fb79596bd4719671b5d
Add Freshrpms repo
yum install ffmpeg-devel
Dependencies Resolved Transaction Listing: Install: ffmpeg-devel.i386 0:0.4.9-0.20050427.1.1.fc3 - freshrpms Performing the following to resolve dependencies: Install: SDL-devel.i386 0:1.2.7-8 - base Install: a52dec-devel.i386 0:0.7.4-7.1.fc3.fr - freshrpms Install: alsa-lib-devel.i386 0:1.0.6-8.FC3 - updates-released Install: faac-devel.i386 0:1.24-1.1.fc3.fr - freshrpms Install: faad2-devel.i386 0:2.0-4.1.fc3 - freshrpms Install: ffmpeg.i386 0:0.4.9-0.20050427.1.1.fc3 - freshrpms Install: fontconfig-devel.i386 0:2.2.3-5 - base Install: imlib2-devel.i386 0:1.2.1-2.fc3 - extras Install: lame.i386 0:3.96.1-2.1.fc3.fr - freshrpms Install: lame-devel.i386 0:3.96.1-2.1.fc3.fr - freshrpms Install: libogg-devel.i386 2:1.1.2-1 - base Install: libvorbis-devel.i386 1:1.1.0-1 - base Install: xorg-x11-devel.i386 0:6.8.2-1.FC3.45.2 - updates-released Install: xvidcore-devel.i386 0:1.0.3-1.1.fc3.fr - freshrpms Total download size: 11 M Is this ok [y/N]: