Re: [FFmpeg-user] Using FFMPEG to encode multiple outputs in 'parallel' (doesn't work?)
On Thu, Jul 06, 2017 at 03:44:45 -0700, DopeLabs wrote: > Option 2 in your question looks fine to me... > > I have used ffmpeg to transcode audio and video streams before to achieve > adaptive streaming. > > Here is an example of an audio transcode... input is 256k mp3, output is > 128k, 64k, and 24k > > $ ffmpeg -i http://stream.dubstep.fm -c:a mp3 -b:a 128k -f null /dev/null > -c:a mp3 -b:a 64k -f null /dev/null -c:a mp3 -b:a 24k -ar 22050 -f null > /dev/null Shalin did confirm in the original posting that this does work and is the preferred method. The complaint was that it doesn't optimally make use of parallelism to load all CPUs to the max (and thereby possibly reduce processing time even more). Moritz ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] progress output to unix domain socket
On Thu, Jul 06, 2017 at 11:16:36 +0200, Nicolas George wrote: > Well, since you are being sarcastic: > > I meant like: mkfifo? > ... I hope you will share the exact version of the operating system you > use where mkfifo can be used to create Unix domain sockets. You can just point out an error without sarcasm - I can take being corrected. I wasn't using sarcasm to point out an error related to the user, ffmpeg or any part of the process while picking at JavaScript, and the original poster got the point. Yes, I was wrong, and misled by Google, and indeed mkfifo on most Unixes creates pipes (not fifos? ;-)), and certainly not Unix domain sockets. (I *did* ask how the user created his socket - so you get my own scepticism regarding my answer.) Since you asked: The exact version is 42. Moritz ;-) $ gcc -o mkfifo -Wall Unix_domain_socket.c $ PATH=.:$PATH $ mkfifo /tmp/foo $ uname -r 42 ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] progress output to unix domain socket
There is no need to argue people. I will try Writing to unix socket works for me with url like this: -progress "unix:/tmp/foo" _ and let you know! Thanks!!! On 7/6/2017 1:52 PM, Nicolas George wrote: L'octidi 18 messidor, an CCXXV, Anatoly a écrit : don't mess socket(2) nc(1) and pipe(2) mkfifo(1) socket(2) is a matter of networking staff, while pipe(2) is a matter of ipc. I know all that, but all that is completely unrelated to UNIX DOMAIN SOCKETS. Judging by your other mail, you know what they are, so please try to stay focused on the topic at hand. Regards, ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] progress output to unix domain socket
L'octidi 18 messidor, an CCXXV, Anatoly a écrit : > don't mess socket(2) nc(1) and pipe(2) mkfifo(1) > socket(2) is a matter of networking staff, while pipe(2) is a matter of > ipc. I know all that, but all that is completely unrelated to UNIX DOMAIN SOCKETS. Judging by your other mail, you know what they are, so please try to stay focused on the topic at hand. Regards, -- Nicolas George signature.asc Description: Digital signature ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] Using FFMPEG to encode multiple outputs in 'parallel' (doesn't work?)
Option 2 in your question looks fine to me... I have used ffmpeg to transcode audio and video streams before to achieve adaptive streaming. Here is an example of an audio transcode... input is 256k mp3, output is 128k, 64k, and 24k $ ffmpeg -i http://stream.dubstep.fm -c:a mp3 -b:a 128k -f null /dev/null -c:a mp3 -b:a 64k -f null /dev/null -c:a mp3 -b:a 24k -ar 22050 -f null /dev/null ffmpeg version N-86413-g50be8f2142 Copyright (c) 2000-2017 the FFmpeg developers built with Apple LLVM version 8.1.0 (clang-802.0.42) configuration: --enable-libvidstab --enable-shared --enable-pthreads --cc=/usr/bin/clang --enable-vda --enable-videotoolbox --arch=x86_64 --enable-yasm --enable-gpl --enable-postproc --enable-libx264 --enable-libxvid --enable-filter=coreimage --enable-filter=coreimagesrc --enable-filter=frei0r --enable-filter=frei0r_src --enable-swscale --enable-avfilter --enable-avresample --enable-libmp3lame --enable-libvorbis --enable-libopus --enable-libtheora --enable-libopenjpeg --enable-libmodplug --enable-libvpx --enable-libsoxr --enable-libspeex --enable-libass --enable-libbluray --enable-lzma --enable-gnutls --enable-fontconfig --enable-libfreetype --enable-libfribidi --enable-libx265 --enable-version3 --enable-libwavpack --enable-libssh --enable-librtmp --enable-libfdk-aac --enable-nonfree --enable-libzmq --enable-opencl --enable-ffplay --enable-libcaca --enable-libvidstab libavutil 55. 63.100 / 55. 63.100 libavcodec 57. 96.101 / 57. 96.101 libavformat57. 72.101 / 57. 72.101 libavdevice57. 7.100 / 57. 7.100 libavfilter 6. 91.100 / 6. 91.100 libavresample 3. 6. 0 / 3. 6. 0 libswscale 4. 7.101 / 4. 7.101 libswresample 2. 8.100 / 2. 8.100 libpostproc54. 6.100 / 54. 6.100 [mp3 @ 0x7fa3b200] Skipping 88 bytes of junk at 0. Input #0, mp3, from 'http://stream.dubstep.fm': Metadata: icy-genre : Dubstep, Dub, Electronic, Garage icy-name: Dubstep.fm icy-notice1 : This stream requires http://www.winamp.com";>Winamp icy-notice2 : SHOUTcast DNAS/posix(linux x64) v2.5.1.724 icy-pub : 1 icy-url : https://www.dubstep.fm StreamTitle : ARCHIVE - 2011-01-09 - The Dented McStank With Phaded From Chicago StreamUrl : https://www.dubstep.fm Duration: N/A, start: 0.00, bitrate: 256 kb/s Stream #0:0: Audio: mp3, 44100 Hz, stereo, s16p, 256 kb/s Stream mapping: Stream #0:0 -> #0:0 (mp3 (native) -> mp3 (libmp3lame)) Stream #0:0 -> #1:0 (mp3 (native) -> mp3 (libmp3lame)) Stream #0:0 -> #2:0 (mp3 (native) -> mp3 (libmp3lame)) Press [q] to stop, [?] for help Output #0, null, to '/dev/null': Metadata: icy-genre : Dubstep, Dub, Electronic, Garage icy-name: Dubstep.fm icy-notice1 : This stream requires http://www.winamp.com";>Winamp icy-notice2 : SHOUTcast DNAS/posix(linux x64) v2.5.1.724 icy-pub : 1 icy-url : https://www.dubstep.fm StreamTitle : ARCHIVE - 2011-01-09 - The Dented McStank With Phaded From Chicago StreamUrl : https://www.dubstep.fm encoder : Lavf57.72.101 Stream #0:0: Audio: mp3 (libmp3lame), 44100 Hz, stereo, s16p, 128 kb/s Metadata: encoder : Lavc57.96.101 libmp3lame Output #1, null, to '/dev/null': Metadata: icy-genre : Dubstep, Dub, Electronic, Garage icy-name: Dubstep.fm icy-notice1 : This stream requires http://www.winamp.com";>Winamp icy-notice2 : SHOUTcast DNAS/posix(linux x64) v2.5.1.724 icy-pub : 1 icy-url : https://www.dubstep.fm StreamTitle : ARCHIVE - 2011-01-09 - The Dented McStank With Phaded From Chicago StreamUrl : https://www.dubstep.fm encoder : Lavf57.72.101 Stream #1:0: Audio: mp3 (libmp3lame), 44100 Hz, stereo, s16p, 64 kb/s Metadata: encoder : Lavc57.96.101 libmp3lame Output #2, null, to '/dev/null': Metadata: icy-genre : Dubstep, Dub, Electronic, Garage icy-name: Dubstep.fm icy-notice1 : This stream requires http://www.winamp.com";>Winamp icy-notice2 : SHOUTcast DNAS/posix(linux x64) v2.5.1.724 icy-pub : 1 icy-url : https://www.dubstep.fm StreamTitle : ARCHIVE - 2011-01-09 - The Dented McStank With Phaded From Chicago StreamUrl : https://www.dubstep.fm encoder : Lavf57.72.101 Stream #2:0: Audio: mp3 (libmp3lame), 22050 Hz, stereo, s16p, 24 kb/s Metadata: encoder : Lavc57.96.101 libmp3lame size=N/A time=00:00:13.14 bitrate=N/A speed=2.69x video:0kB audio:347kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown > On Jul 5, 2017, at 2:23 39PM, sh > alin wrote: > > Reuben Martin wrote >> On Thursday, June 29, 2017 6:56:51 PM CDT shalin wrote: >>> Cley Faye wrote >>> More to the point, as far as I know, ffmpeg will not do p
Re: [FFmpeg-user] about merging more than 1 videos
"media_type": "video", "key_frame": 0, "pkt_pts": 1902000, "pkt_pts_ti me": "38.04", "pkt_dts": 1902000, "pkt_dts_time": "38.04", "best_effort_ timestamp": 1902000, "best_effort_timestamp_time": "38.04", "pkt_duration": 2000, "pkt_duration_time": "0.04", "pkt_pos": "117923788", "pkt_size": "8841 7", "width": 1920, "height": 1080, "pix_fmt": "yuv420p", "sample_aspect_ratio": "1:1", "pict_type": "B", "coded_picture_number": 951, "display_picture_number": 0, "interlaced_frame": 1, "top_field_first": 1, "repeat_pict": 0 how do i get this kind of info about video means which command should i use with ffprobe On Thu, Jul 6, 2017 at 2:08 PM, Cley Faye wrote: > 2017-07-06 10:27 GMT+02:00 akash kulkarni : > > > Hello there, > > i am using the ffmpeg -copy command and merging multiple files from text > > file > > without re-encoding but its giving me jerk at the joint point of two > files. > > How could i vanish that jerk. > > > This depends on your source material (codec, settings of each files), how > they were made/cut, and on the exact command line you're using with ffmpeg. > Without any info, it's hard to tell. > > For reference, I can stitch together multiple video without hiccups and > without doing much more than put their name in a file, use concat, and set > codec to copy. > ___ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > http://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] progress output to unix domain socket
tasos wrote: > More specifically i get > Failed to open progress URL "/tmp/foo": No such device or > address Writing to unix socket works for me with url like this: -progress "unix:/tmp/foo" ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] progress output to unix domain socket
don't mess socket(2) nc(1) and pipe(2) mkfifo(1) socket(2) is a matter of networking staff, while pipe(2) is a matter of ipc. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] progress output to unix domain socket
L'octidi 18 messidor, an CCXXV, Moritz Barsnick a écrit : > Haha! Who needs operating systems when we have ... JavaScript! ;-) Well, since you are being sarcastic: > I meant like: mkfifo? ... I hope you will share the exact version of the operating system you use where mkfifo can be used to create Unix domain sockets. Regards, -- Nicolas George signature.asc Description: Digital signature ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] about merging more than 1 videos
2017-07-06 10:27 GMT+02:00 akash kulkarni : > Hello there, > i am using the ffmpeg -copy command and merging multiple files from text > file > without re-encoding but its giving me jerk at the joint point of two files. > How could i vanish that jerk. This depends on your source material (codec, settings of each files), how they were made/cut, and on the exact command line you're using with ffmpeg. Without any info, it's hard to tell. For reference, I can stitch together multiple video without hiccups and without doing much more than put their name in a file, use concat, and set codec to copy. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
[FFmpeg-user] about merging more than 1 videos
Hello there, i am using the ffmpeg -copy command and merging multiple files from text file without re-encoding but its giving me jerk at the joint point of two files. How could i vanish that jerk. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
