Re: [FFmpeg-user] Help: How to add subtitles to a video created from images?
Thank you. Adding the fps filter solved my problem. ___ 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] Help: How to add subtitles to a video created from images?
On 15-02-2019 10:49 AM, Srinidhi S wrote: I am trying to use ffmpeg to create a video from images and add subtitles to the video. The following is the command that I am using ffmpeg -f concat -i input.txt -i 02-38-2019-112729.m4a -vf "scale=1280:720,subtitles=subtitles.srt" -pix_fmt yuv420p output.mp4 where input.txt is a text file in the following format file 'IMG_0001.JPG' duration 2 file 'IMG_0002.JPG' duration 50 file 'IMG_0002.JPG' and subtitles.srt is a subtitle file. I find that while the video is generated, the subtitles are not present. Can anyone point out what I am doing wrong? Already pointed out in your Q at video stack exch Frames must exist within the time intervals of the subtitles. You can use the fps filter to generate a CFR stream before applying subtitles. But to keep VFR, you'll need to create duplicate entries in your textfile, with suitable duration values. Gyan ___ 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] Help: How to add subtitles to a video created from images?
I am trying to use ffmpeg to create a video from images and add subtitles to the video. The following is the command that I am using ffmpeg -f concat -i input.txt -i 02-38-2019-112729.m4a -vf "scale=1280:720,subtitles=subtitles.srt" -pix_fmt yuv420p output.mp4 where input.txt is a text file in the following format file 'IMG_0001.JPG' duration 2 file 'IMG_0002.JPG' duration 50 file 'IMG_0002.JPG' and subtitles.srt is a subtitle file. I find that while the video is generated, the subtitles are not present. Can anyone point out what I am doing wrong? The following is the ffmpeg output- ffmpeg version 4.1.1 Copyright (c) 2000-2019 the FFmpeg developers built with Apple LLVM version 10.0.0 (clang-1000.11.45.5) configuration: --prefix=/usr/local/Cellar/ffmpeg/4.1.1 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags='-I/Library/Java/JavaVirtualMachines/openjdk-11.0.2.jdk/Contents/Home/include -I/Library/Java/JavaVirtualMachines/openjdk-11.0.2.jdk/Contents/Home/include/darwin' --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libmp3lame --enable-libopus --enable-librubberband --enable-libsnappy --enable-libtesseract --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librtmp --enable-libspeex --enable-videotoolbox --disable-libjack --disable-indev=jack --enable-libaom --enable-libsoxr libavutil 56. 22.100 / 56. 22.100 libavcodec 58. 35.100 / 58. 35.100 libavformat58. 20.100 / 58. 20.100 libavdevice58. 5.100 / 58. 5.100 libavfilter 7. 40.101 / 7. 40.101 libavresample 4. 0. 0 / 4. 0. 0 libswscale 5. 3.100 / 5. 3.100 libswresample 3. 3.100 / 3. 3.100 libpostproc55. 3.100 / 55. 3.100 Input #0, concat, from 'input.txt': Duration: N/A, start: 0.00, bitrate: N/A Stream #0:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 4288x2848 [SAR 72:72 DAR 134:89], 25 tbr, 25 tbn, 25 tbc Input #1, mov,mp4,m4a,3gp,3g2,mj2, from '02-38-2019-112729.m4a': Metadata: major_brand : M4A minor_version : 0 compatible_brands: M4A mp42isom creation_time : 2019-02-07T05:58:18.00Z Duration: 00:00:49.09, start: 0.00, bitrate: 107 kb/s Stream #1:0(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 98 kb/s (default) Metadata: creation_time : 2019-02-07T05:58:18.00Z File 'output.mp4' already exists. Overwrite ? [y/N] y Stream mapping: Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264)) Stream #1:0 -> #0:1 (aac (native) -> aac (native)) Press [q] to stop, [?] for help [Parsed_subtitles_1 @ 0x7faed8d0a4c0] Shaper: FriBidi 1.0.5 (SIMPLE) HarfBuzz-ng 2.3.0 (COMPLEX) [Parsed_subtitles_1 @ 0x7faed8d0a4c0] Using font provider coretext [swscaler @ 0x7faed9826600] deprecated pixel format used, make sure you did set range correctly [libx264 @ 0x7faed9007000] using SAR=603/712 [libx264 @ 0x7faed9007000] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2 [libx264 @ 0x7faed9007000] profile High, level 3.1 [libx264 @ 0x7faed9007000] 264 - core 155 r2917 0a84d98 - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00 Output #0, mp4, to 'output.mp4': Metadata: encoder : Lavf58.20.100 Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p(progressive), 1280x720 [SAR 603:712 DAR 134:89], q=-1--1, 25 fps, 12800 tbn, 25 tbc Metadata: encoder : Lavc58.35.100 libx264 Side data: cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1 Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default) Metadata: creation_time : 2019-02-07T05:58:18.00Z encoder : Lavc58.35.100 aac More than 1000 frames duplicated 0kB time=00:00:00.00 bitrate=N/A dup=49 drop=0 speed= 0x frame= 1349 fps= 96 q=-1.0 Lsize=1785kB time=00:00:53.84 bitrate= 271.6kbits/s dup=1346 drop=0 speed=3.84x video:1012kB audio:744kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.638231% [libx264 @
Re: [FFmpeg-user] Streaming overseas
On Fri, Feb 15, 2019 at 9:17 AM Manuel Alejandro wrote: > > I got the same result. > > Here a video where you can see how the music accelerates and then the > latency goes to 0 (What I hope is that when the connection is stabilized > again, the latency will remain at 600ms.) SRT is not the REAL packet lossless implementation when your network is not very stable. We use KCP(TCP over UDP) + FEC in this scenario. ___ 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] OT: POLL Do you want RTX? Cross-website-post.
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Hello, I heard from 1 of the people that do HW reviews that AMD was considering implementing their very own RTX and looking at what people think of RTX. I created a poll on LQ: https://www.linuxquestions.org/questions/showthread.php?p=5962219 and in the past 23 hours have gotten 5 votes! :( I am posting to this ML and several other places in hopes of getting a better turnout. Thanks for you vote. Please comment on the actual LQ poll page not this email. Yes, Ray Tracing eXtensions (RTX) may be relevant to video editing, and therefore, ffmpeg, at a later date. David -BEGIN PGP SIGNATURE- iQIzBAEBCAAdFiEEL2N7+xWmVOJDQxWGm3XCrhg2YP8FAlxmKbcACgkQm3XCrhg2 YP+StA/9FVkeDM3tDop3URiubRpTJSur+hEXVQg6uw4CNuic5w8VU1ghw95W5j/b cNldMvZS+lNIUR7w0LM6A/PrU7y/sWW889b8x3q6PWTJz2rTzORRYoP+pGWHRtFh rtumsKB1UDTgDyuCd+1GPlqdc8x9EQprnwcA0PAON2IOVSrVcxVNO539Qn8OZ0rR W74jJ4tFPq8ldVOj3RJu1JF1DO3gzYTeevWRscVxd0Vp2fpXYTSd3CgSm3x+C003 ImZg3lEUMFBLIBN3MRGdHIJc4JgPE4LtEvg9W7MAYvcieFphSi+oLBWwkxP/rB4W RQsltf7h2l2hYvVz4rOx3aTdbwrqnMTdd+/YsGqOQIrdkLchOOp/5TR+dmDqc3y4 thqCnK3y5678yUTo4b4PAYwvIuU7G4WIEponKTUbEU3D3tAodmoQ99ykvP8tYGf8 ir5eLO48POW1vo3aYwNW4dI4cpTEZw3bLfS2GoV/THh0IDKsYCp4yBHe8up3LDTB pzTrg7oWUGIctF0UWu1F+EfU0dviHrYy6O0sGjbg0WK2I45I2reZdGlVrLu3jK/F eoBHUr4i1TrXz5uhiDNNTKqZStoxIcYweD/6+s51lywPPRdNGRRchE6QfDRkYDo+ 1IrZeg/uN2/lSq/NbHhq+KoocXSzGKSxJoOjqQCX0EiN5TdTAbU= =WBiG -END PGP 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] Streaming overseas
I got the same result. Here a video where you can see how the music accelerates and then the latency goes to 0 (What I hope is that when the connection is stabilized again, the latency will remain at 600ms.) https://www.youtube.com/watch?v=ij8P-enNFZI On Thu, Feb 14, 2019 at 9:47 AM Alex Molon wrote: > On the receiver side, set the latency around 600ms > > https://ffmpeg.org/ffmpeg-protocols.html#srt > > -Original Message- > From: ffmpeg-user [mailto:ffmpeg-user-boun...@ffmpeg.org] On Behalf Of > Manuel Alejandro > Sent: 03 February 2019 16:18 > To: FFmpeg user questions > Subject: Re: [FFmpeg-user] Streaming overseas > > Hi Mustafa Al Ani, > How do you deal with the delay variations when loss of unrecoverable > packets occurs? In my case, the delay decreases. For example, it goes from > 400ms to 0ms. The playback jumps forward. At the moment I do not know how > to avoid this. > > On Sun, Feb 3, 2019 at 7:36 AM Mustafa Al Ani > wrote: > > > I second Alex, > > > > We use SRT to send low latency stream from Copenhagen Denmark to NY, > Ohio, > > and LA in the USA. > > > > R, > > Mustafa > > > > On Thu, Dec 20, 2018 at 4:30 PM Alex Molon > > wrote: > > > > > SRT forever! > > > > > > Simple, stable, low latency, transports any MPEG-TS content. > > > It is designed expressely for hi quality streams over internet. > > > > > > Alex :) > > > > > > -Original Message- > > > From: ffmpeg-user [mailto:ffmpeg-user-boun...@ffmpeg.org] On Behalf Of > > > Louis Letourneau > > > Sent: 05 November 2018 18:44 > > > To: FFmpeg user questions > > > Subject: Re: [FFmpeg-user] Streaming overseas > > > > > > > Hello Louis, > > > > > > > > Have you take a look at SRT protocol ? > > > > > > > > Source code : https://github.com/Haivision/srt > > > > > > > > Latest FFmpeg handle this protocol (if i am not wrong). > > > > > > > > > > > > > I didn't know about it. I will try it as soon as i can. It seems > > > interesting. > > > > > > Louis > > > > > > > > > > ___ > > > 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". > > ___ > > 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". > ___ > 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] What is option -level ?
2019-02-15 0:28 GMT+01:00, Ulf Zibis : > Hi Jonathan, > > thanks for your hints. Unfortunately they have been already known to > me, but there still remain 2 questions from my side: > - The '+' with "-flags" arguments, I can imagine, it serves as > separator. But is that all, has '-' another meaning too? "+" means that the flag should be set (no effect for flags that are set by default or by the application) , "-" that the flag should be removed (no effect if the flag is not set by default or by the application) > There is no explanation on this at: > https://www.ffmpeg.org/ffmpeg-codecs.html#Codec-Options True. > - How to determine, if global codec options (e.g. "-level") are valid > for audio, video or both. You cannot because it is codec-specific (so if you know the codec you are using, you know if it - or its implementation - supports levels). Please avoid top-posting here Carl Eugen ___ 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] Use ffmpeg to delay webcam feed with dshow displayed locally
Hi Ted, Thanks again for all your suggestions. Ok, I will try to get this delay with a file, or something like that. I'm curious though, what happens function / command wise when you hit the pause key because this ends up producing the results I'm looking for. When you hit the pause key and then 10 seconds un-pause it, you end up with a live stream which is 10 seconds delayed. I guess what you are saying is there is not a good way to replicate that using the filters or other options? Scott On Thursday, February 14, 2019, 1:28:59 PM PST, Ted Park wrote: > ./ffmpeg.exe -f dshow -video_size 160x120 -framerate 30 -i video="Integrated > Webcam" -filter setpts=expr=PTS+10/TB -pix_fmt yuv420p -f sdl ohhh wait. SDL gives you a hw surface to draw on if I understand correctly? So it will happily gobble up frames and draw them fast as it can whenever it gets it, I doubt they are even timestamped. You need the 10 seconds of delayed frames to be stored anyway (I was thinking of keeping them in memory) so I would say just write to file and play back after delay. There is no output at realtime function. ___ 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] What is option -level ?
Hi Jonathan, thanks for your hints. Unfortunately they have been already known to me, but there still remain 2 questions from my side: - The '+' with "-flags" arguments, I can imagine, it serves as separator. But is that all, has '-' another meaning too? There is no explanation on this at: https://www.ffmpeg.org/ffmpeg-codecs.html#Codec-Options - How to determine, if global codec options (e.g. "-level") are valid for audio, video or both. Please note that the variables in my option set as a template are filled with values from K9Copy before the command is propagated to bash. -Ulf Am 14.02.19 um 14:19 schrieb Jonathan Isom: > Hi > > I was thinking part of the reason for confusion is the understanding of how > command arguments work. I didn’t include all from earlier in the thread, > but here are some. Most arguments are preceded ‘-‘. ‘-vf’ then its > options, the string including crop till it reaches the space after. Each > option is separated by spaces. So ‘-pass’ further down is not an option of > ‘-flag8s’. Some arguments don’t have options, but most of the ones you are > looking at do. There are a dreadful amount of arguments in those commands. > The scale ‘-s’ and its option ‘$WIDTHxHEIGHT’. ‘-flags’ has options but > ‘-pass’ is not part of it. Just the ‘+loop+mv4’ part. I don’t know if > K3copy uses the bash shell to run the ffmpeg, but I suspect it does. If you > set all the environment variables(starts with ‘$’ like $WIDTH) in bash or > put in in a shell script, you can trial and error the ffmpeg command line. > > > -b $VIDBRk > > -s $WIDTHx$HEIGHT > > -vf > crop=$WIDTH-$CROPRIGHT-$CROPLEFT:$HEIGHT-$CROPTOP-$CROPBOTTOM:$CROPLEFT:$CROPTOP > > -aspect $ASPECT > > -codec:v libx264 > > -level 30 > > -flags +loop+mv4 > > ... > > -pass $PASS > > -passlogfile $PASSLOGFILE > > > Hope this is helpful. > > Jonathan ___ 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] Wrong Channel count value on mp4a sample entry
Thanks Gyan. 2019년 2월 14일 (목) 오후 3:45에 Gyan 님이 작성: > > > On 14-02-2019 06:39 AM, Yuntaek Lim wrote: > > > > I could not find any constraints about channel count, cannot describe > greater > > than 2, for audioSampleEntry from iso 14496-12:2015. > > However, I've found "When values greater than 2 are used, the codec > > configuration should identify the channel assignment." > > The standard then goes on to say, > > "The audio output format (samplerate, samplesize and channelcount > fields) in the sample entry should be considered definitive only for > codecs that do not record their own output configuration. If the audio > codec has definitive information about the output format, it shall be > taken as definitive; in this case the samplerate, samplesize and > channelcount fields in the sample entry may be ignored, though sensible > values should be chosen (for example, the highest possible sampling rate)" > > For AAC, ASC is added from codec extradata, and provides the definitive > info. > > It may still be helpful to accurately record channel count for AAC, but > it's not required. > > Gyan > ___ > 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] Use ffmpeg to delay webcam feed with dshow displayed locally
> ./ffmpeg.exe -f dshow -video_size 160x120 -framerate 30 -i video="Integrated > Webcam" -filter setpts=expr=PTS+10/TB -pix_fmt yuv420p -f sdl ohhh wait. SDL gives you a hw surface to draw on if I understand correctly? So it will happily gobble up frames and draw them fast as it can whenever it gets it, I doubt they are even timestamped. You need the 10 seconds of delayed frames to be stored anyway (I was thinking of keeping them in memory) so I would say just write to file and play back after delay. There is no output at realtime function. ___ 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] Use ffmpeg to delay webcam feed with dshow displayed locally
Hi Ted, Thank you - I definitely appreciate all of the suggestions. It seems like with the cue filter, frames are getting buffered and then at the end of the start delay, they all play through really quickly. It makes me wonder if there isn't some index that needs to be updated to basically tell it to not start at the beginning, but somewhere in the middle of the buffer. You can see I tried using setpts in combination with the cue filter, and also tried adding the fifo statement but I really don't know how any of these interact. I'm wondering if there is some combination of buffer filter and cue filter? I'm having a hard time getting the buffer statement to work. I tried all of the following (and more), but with no success. All of the following just shows live input: ./ffmpeg.exe -f dshow -video_size 160x120 -framerate 30 -i video="Integrated Webcam" -filter setpts=expr=PTS+10/TB -pix_fmt yuv420p -f sdl2 "SDL_OUT" $ ./ffmpeg.exe -f dshow -video_size 160x120 -framerate 30 -i video="Integrated Webcam" -filter setpts='expr=PTS+10/(TB*100)' -pix_fmt yuv420p -f sdl2 "SDL_OUT" $ ./ffmpeg.exe -f dshow -video_size 160x120 -framerate 30 -i video="Integrated Webcam" -filter setpts='(RTCTIME-RTCSTART+10)/(TB*100)' -pix_fmt yuv420p -f sdl2 "SDL_OUT" $ ./ffmpeg.exe -f dshow -video_size 160x120 -framerate 30 -i video="Integrated Webcam" -filter setpts='(RTCTIME-RTCSTART-10)/(TB*100)' -pix_fmt yuv420p -f sdl2 "SDL_OUT" All of the following shows a delayed start to the video (blank white screen), then realtime video: export this_date=`date +%s`;this_date=`echo \($this_date+10\)*100|bc`;./ffmpeg.exe -f dshow -video_size 160x120 -framerate 30 -i video="Integrated Webcam" -filter cue=cue=$this_date:buffer=20,setpts='(RTCTIME-RTCSTART+10)/(TB*100)' -pix_fmt yuv420p -f sdl2 "SDL_OUT" export this_date=`date +%s`;this_date=`echo \($this_date+10\)*100|bc`;./ffmpeg.exe -f dshow -video_size 160x120 -framerate 30 -i video="Integrated Webcam" -filter setpts='(RTCTIME-RTCSTART+10)/(TB*100)',cue=cue=$this_date:buffer=20 -pix_fmt yuv420p -f sdl2 "SDL_OUT" export this_date=`date +%s`;this_date=`echo \($this_date+5\)*100|bc`;./ffmpeg.exe -f dshow -video_size 160x120 -framerate 30 -i video="Integrated Webcam" -filter fifo,cue=cue=$this_date:buffer=20 -pix_fmt yuv420p -f sdl2 "SDL_OUT" On Thursday, February 14, 2019, 5:23:20 AM PST, Ted Park wrote: > It shows a white output screen for 10 seconds, then it shows what appears to > be a very fast set of "catchup" frames for a fraction of a second, then > shows the live video stream again with no delay. Oh. :s Does chaining setpts=expr=PTS+$DELAY/TB work? (Sorry I’m throwing all the spaghetti against the wall till something sticks) ___ 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] signalstats
Thanks very much. I was hoping to restrict the output using ffmpeg and not ffprobe; mostly so I could make a proxy with overlay and metadata text file at the same time. My question regarding bit depth was because the filter doc shows values between 0-255 which is cool for 8bit values, but 10bit obvs higher. Thanks for your help I will give it a whirl with a 10 bit file and see what comes out. Sent from my iPhone > On 14 Feb 2019, at 17:38, Chris Davis wrote: > > In order to show specific entries with signal stats, I have used the > following. > > input=[file to process] > > ffprobe -f lavfi movie=$input,signalstats -show_entries > frame=pkt_pts_time:frame_tags=lavfi.signalstats.YDIF:frame_tags=lavfi.signalstats.VDIF:frame_tags=lavfi.signalstats.UDIF > -of compact=p=0:nk=1:s=',' | awk -F, '$2||$3||$4' > > produces this output. pts_time, YDIF, UDIF, VDIF > > 0.041708,3.9209,0,0 > > 0.083417,3.3272,0,0 > > 0.125125,2.31667,0,0 > > 0.166833,3.64537,0,0 > > 0.208542,3.88414,0,0 > > 0.250250,1.48258,0,0 > > 0.291958,3.54581,0,0 > > 0.333667,3.61441,0,0 > > 0.375375,2.19445,0,0 > > 0.417083,5.24294,0,0 > > 0.458792,3.91119,0,0 > > 0.500500,3.49364,0,0 > > 0.542208,2.23117,0,0 > > 0.583917,3.63617,0,0 > > 0.625625,3.8388,0,0 > > 0.667333,1.68407,0,0 > > 0.709042,3.84471,0,0 > > 0.750750,3.52209,0,0 > > 0.792458,2.10397,0,0 > > 0.834167,4.66315,0,0 > > 0.875875,3.88427,0,0 > > 0.917583,3.44534,0,0 > > 0.959292,2.15088,0,0 > > 1.001000,7.99362,0,0 > > etc > > On Thu, Feb 14, 2019 at 12:22 PM Kieran O Leary > wrote: > >>> On Thu, 14 Feb 2019, 16:53 Gyan >> >>> >>> On 14-02-2019 09:47 PM, adam smith wrote: The other question regarding this filter, can it output 10bit values? The 8bit values appear to be covered, but I am not sure how to get >> 10bit >>> or higher. >>> >>> The filter works with inputs up to 16 bit depth. >>> >> >> I think a few years ago it was only 8-bit,so perhaps Adam is using an >> ancient version.. >> ___ >> 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". ___ 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] MPEG-2 encoding problem
> -Original Message- > From: ffmpeg-user [mailto:ffmpeg-user-boun...@ffmpeg.org] On Behalf Of > Carl Zwanzig > Sent: 14 February 2019 16:53 > To: ffmpeg-user@ffmpeg.org > Subject: Re: [FFmpeg-user] MPEG-2 encoding problem > > On 2/14/2019 5:46 AM, Moritz Barsnick wrote: > > You should try "-flags +ilme+ildct". (Just a hunch, I'm not sure.) > Yes, with a leading "+". > > > Here's the command I use for converting content from 480p24 to NTSC "dvd" > format 480i60 (and working from memory here), the output it produces is > acceptable, and since I run it in batches, the processing time isn't > relevant to me. > > ffmpeg -hide_banner -i $infile > > # this forces the -input- frame rate for anything that has a little i60 > # in front of the remaining p24 content (remove fps if not needed) > -vf fps=24000/1001,telecine > > # sound syn and quality (need to look up those options) > -async 1 -dc 9 > > # target/format flags > # (some player s/w doesn't like TFF, so force to BFF) > -target ntsc-dvd -flags +ilme+ildct -alternate_scan 1 -top 0 > > -y $outfile > > I don't think you need 'scale' on the input vf since that should be taken > care of later in the process. May want to try it both ways. > > If you want interlaced output, you need +ilme+ildct; that'll take more time > and produce lower-quality output. OTOH if progressive is OK, leave that > whole line out. For progressive content interlaced scaling should also be disabled, i.e. no '-vf scale=interl=1' (I was unable to find the original post's '-vf scale=interlace' syntax at https://ffmpeg.org/ffmpeg-filters.html#scale-1). > > Later, > > z! > ___ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > http://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] signalstats
In order to show specific entries with signal stats, I have used the following. input=[file to process] ffprobe -f lavfi movie=$input,signalstats -show_entries frame=pkt_pts_time:frame_tags=lavfi.signalstats.YDIF:frame_tags=lavfi.signalstats.VDIF:frame_tags=lavfi.signalstats.UDIF -of compact=p=0:nk=1:s=',' | awk -F, '$2||$3||$4' produces this output. pts_time, YDIF, UDIF, VDIF 0.041708,3.9209,0,0 0.083417,3.3272,0,0 0.125125,2.31667,0,0 0.166833,3.64537,0,0 0.208542,3.88414,0,0 0.250250,1.48258,0,0 0.291958,3.54581,0,0 0.333667,3.61441,0,0 0.375375,2.19445,0,0 0.417083,5.24294,0,0 0.458792,3.91119,0,0 0.500500,3.49364,0,0 0.542208,2.23117,0,0 0.583917,3.63617,0,0 0.625625,3.8388,0,0 0.667333,1.68407,0,0 0.709042,3.84471,0,0 0.750750,3.52209,0,0 0.792458,2.10397,0,0 0.834167,4.66315,0,0 0.875875,3.88427,0,0 0.917583,3.44534,0,0 0.959292,2.15088,0,0 1.001000,7.99362,0,0 etc On Thu, Feb 14, 2019 at 12:22 PM Kieran O Leary wrote: > On Thu, 14 Feb 2019, 16:53 Gyan > > > > > > On 14-02-2019 09:47 PM, adam smith wrote: > > > The other question regarding this filter, can it output 10bit values? > > > The 8bit values appear to be covered, but I am not sure how to get > 10bit > > or higher. > > > > The filter works with inputs up to 16 bit depth. > > > > I think a few years ago it was only 8-bit,so perhaps Adam is using an > ancient version.. > ___ > 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] signalstats
On Thu, 14 Feb 2019, 16:53 Gyan > > On 14-02-2019 09:47 PM, adam smith wrote: > > The other question regarding this filter, can it output 10bit values? > > The 8bit values appear to be covered, but I am not sure how to get 10bit > or higher. > > The filter works with inputs up to 16 bit depth. > I think a few years ago it was only 8-bit,so perhaps Adam is using an ancient version.. ___ 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] signalstats
On 14-02-2019 09:47 PM, adam smith wrote: The other question regarding this filter, can it output 10bit values? The 8bit values appear to be covered, but I am not sure how to get 10bit or higher. The filter works with inputs up to 16 bit depth. Gyan ___ 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] MPEG-2 encoding problem
On 2/14/2019 5:46 AM, Moritz Barsnick wrote: You should try "-flags +ilme+ildct". (Just a hunch, I'm not sure.) Yes, with a leading "+". Here's the command I use for converting content from 480p24 to NTSC "dvd" format 480i60 (and working from memory here), the output it produces is acceptable, and since I run it in batches, the processing time isn't relevant to me. ffmpeg -hide_banner -i $infile # this forces the -input- frame rate for anything that has a little i60 # in front of the remaining p24 content (remove fps if not needed) -vf fps=24000/1001,telecine # sound syn and quality (need to look up those options) -async 1 -dc 9 # target/format flags # (some player s/w doesn't like TFF, so force to BFF) -target ntsc-dvd -flags +ilme+ildct -alternate_scan 1 -top 0 -y $outfile I don't think you need 'scale' on the input vf since that should be taken care of later in the process. May want to try it both ways. If you want interlaced output, you need +ilme+ildct; that'll take more time and produce lower-quality output. OTOH if progressive is OK, leave that whole line out. Later, z! ___ 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] MPEG-2 encoding problem
2019-02-14 14:14 GMT+01:00, Jane : > Hello everyone! I'm encoding video to MPEG-2 using Zeranoe's Windows > builds. The source file is 720p 60fps, progressive. I want to keep high > quality and compatibility with DVD standards, so I use: > ffmpeg -hwaccel auto -i "input" -vf scale=ntsc,interlace,fps=fps=29.97 -c:v > mpeg2video -q:v 3 -g 15 -mpeg_quant 1 -aspect 16:9 -sc_threshold 40 -bf 2 > -intra_vlc 1 -b_stratgey 2 -flags ilme+ildct -maxrate 9M -bufsize 224k -c:a > mp2 -b:a 224k "output" Apart from what Moritz wrote (use -target if you need dvd compatibility) note that "29.97" is not correct, ntsc framerate is 3/1001. > It works all right, but the quality is very low. And I noticed during > encoding, qp is floting around 31, what's wrong? After disabled ildct and > ilme, the quality is normal. Is the command incorrect? This does indeed sound like a serious bug but as also indicated by Moritz the reason is that you overwrite flags by not using "+ilme+ildct". Carl Eugen ___ 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] signalstats
Hi Is it possible to limit the return of signalstats filter to only return certain values (YMAX, YMIN etc) instead of always outputting all values. Perhaps only output values if they are outside of a tolerance eg <16 or >235 The other question regarding this filter, can it output 10bit values? The 8bit values appear to be covered, but I am not sure how to get 10bit or higher. System Bit Depth Range in Digital Sample (Code) Values Expected Video Range Preferred Min. / Max. Total Video Signal Range 8 bit 16 - 235 5 - 246 1 - 254 10 bit 64 - 940 20 - 984 4 - 1019 12 bit 256 - 3760 80 - 3936 16 - 4079 16 bit 4096 - 60160 1280 - 62976 256 - 65279 Thanks for your awesome work. Thanks in advance of your resonse Adam ___ 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] MPEG-2 encoding problem
Hi Jane, On Thu, Feb 14, 2019 at 21:14:07 +0800, Jane wrote: > Hello everyone! I'm encoding video to MPEG-2 using Zeranoe's Windows > builds. The source file is 720p 60fps, progressive. I want to keep high > quality and compatibility with DVD standards, so I use: > ffmpeg -hwaccel auto -i "input" -vf scale=ntsc,interlace,fps=fps=29.97 -c:v > mpeg2video -q:v 3 -g 15 -mpeg_quant 1 -aspect 16:9 -sc_threshold 40 -bf 2 > -intra_vlc 1 -b_stratgey 2 -flags ilme+ildct -maxrate 9M -bufsize 224k -c:a > mp2 -b:a 224k "output" For best assistance, we recommend to also post the complete, uncut output of this ffmpeg command. Furthermore: * " -b_stratgey 2" won't be accepted by ffmpeg, there's a typo in there. * ffmpeg provides a set of defaults for maximum DVD compatibility, provided by "-target dvd". I wonder whether you really need to fiddle with any of the other parameters you provided. Here's what this "target" sets (from the source code): opt_video_codec(o, "c:v", "mpeg2video"); opt_audio_codec(o, "c:a", "ac3"); // you can of course set mp2 instead // Moritz parse_option(o, "f", "dvd", options); parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options); parse_option(o, "r", frame_rates[norm], options); parse_option(o, "pix_fmt", "yuv420p", options); opt_default(NULL, "g", norm == PAL ? "15" : "18"); opt_default(NULL, "b:v", "600"); opt_default(NULL, "maxrate:v", "900"); opt_default(NULL, "minrate:v", "0"); // 150; opt_default(NULL, "bufsize:v", "1835008"); // 224*1024*8; opt_default(NULL, "packetsize", "2048"); // from www.mpucoder.com: DVD sectors contain 2048 bytes of data, this is also the size of one pack. opt_default(NULL, "muxrate", "1008"); // from mplex project: data_rate = 126. mux_rate = data_rate * 8 opt_default(NULL, "b:a", "448000"); parse_option(o, "ar", "48000", options); * As far as I understand, DVD supports progressive content just fine, so you can actually avoid interlacing (and requiring those flags). * "-q:v 3" will result in quite low bandwith, IIRC. This may be one of your issues. Note how the defaults above specify a bandwidth, with a significant size. (If we saw your output, we could see which bandwidth your ffmpeg command resulted in. Probably much too low.) > After disabled ildct and ilme, the quality is normal. Is the command > incorrect? That's interesting. Possibly, your "-flags" parameter is erasing other flags. You should try "-flags +ilme+ildct". (Just a hunch, I'm not sure.) > Due to the lack of information about codec mpeg2 video, I'm not sure > about the sc_threshold, b_strategy and the dia_size value. How can i > get detailed information? Can't you just leave them at their/ffmpeg's defaults, if you don't know what to do about them? Especially since you don't have knowledge of the codec and their influences on it? Cheers, and let us know how it goes, 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] What is option -level ?
From: Ulf Zibis Reply: FFmpeg user questions Date: February 13, 2019 at 4:23:43 PM To: ffmpeg-user@ffmpeg.org Subject: Re: [FFmpeg-user] What is option -level ? > Am 13.02.19 um 20:23 schrieb Lou Logan: > > https://trac.ffmpeg.org/wiki/Encode/H.264 > > Thanks, I know this page. > > If I need 2 passes I should know about the correct syntax, "-flags pass1" > or > "-pass 1". > > "-pass 1" for the first pass, then "-pass 2" for the second pass. > > > I was just wondering, that option "-pass" is not mentioned here: > https://www.ffmpeg.org/ffmpeg-codecs.html#toc-Codec-Options > So I understand that it is an alternative to the "-flags pass1" syntax. > Hi I was thinking part of the reason for confusion is the understanding of how command arguments work. I didn’t include all from earlier in the thread, but here are some. Most arguments are preceded ‘-‘. ‘-vf’ then its options, the string including crop till it reaches the space after. Each option is separated by spaces. So ‘-pass’ further down is not an option of ‘-flag8s’. Some arguments don’t have options, but most of the ones you are looking at do. There are a dreadful amount of arguments in those commands. The scale ‘-s’ and its option ‘$WIDTHxHEIGHT’. ‘-flags’ has options but ‘-pass’ is not part of it. Just the ‘+loop+mv4’ part. I don’t know if K3copy uses the bash shell to run the ffmpeg, but I suspect it does. If you set all the environment variables(starts with ‘$’ like $WIDTH) in bash or put in in a shell script, you can trial and error the ffmpeg command line. -b $VIDBRk -s $WIDTHx$HEIGHT -vf crop=$WIDTH-$CROPRIGHT-$CROPLEFT:$HEIGHT-$CROPTOP-$CROPBOTTOM:$CROPLEFT:$CROPTOP -aspect $ASPECT -codec:v libx264 -level 30 -flags +loop+mv4 ... -pass $PASS -passlogfile $PASSLOGFILE Hope this is helpful. Jonathan > > -Ulf > > ___ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > http://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". > ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] Use ffmpeg to delay webcam feed with dshow displayed locally
> It shows a white output screen for 10 seconds, then it shows what appears to > be a very fast set of "catchup" frames for a fraction of a second, then shows > the live video stream again with no delay. Oh. :s Does chaining setpts=expr=PTS+$DELAY/TB work? (Sorry I’m throwing all the spaghetti against the wall till something sticks) ___ 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] Trying to create matching multi-audio-track mp4s from ProRes sources
> On Feb 13, 2019, at 3:01 PM, Harvey Pikelberger wrote: > > BUT for some reason the time code changed. So a clip that had started at TC > start/end of 12:31:20:13 / 12:31:42:16 converted to 12:30:35:12 / 12:30:57:15. The 0.1% change makes me think the timecode was converted to/from drop frame. Take another look at the separator before sub-second time to see if they really are both “:” > I'm not familiar with the -f option and didn't immediately find it in the > FFmpeg documentation > How does that work? It sets the output file format, overriding what is guessed from the filename extension. There are some subtle (and some not so subtle) differences between quicktime, iso base media and mp4 formats. Files with timecode and edit list from an NLE, sometimes with references to external files = qt in my mind. ___ 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] MPEG-2 encoding problem
Hello everyone! I'm encoding video to MPEG-2 using Zeranoe's Windows builds. The source file is 720p 60fps, progressive. I want to keep high quality and compatibility with DVD standards, so I use: ffmpeg -hwaccel auto -i "input" -vf scale=ntsc,interlace,fps=fps=29.97 -c:v mpeg2video -q:v 3 -g 15 -mpeg_quant 1 -aspect 16:9 -sc_threshold 40 -bf 2 -intra_vlc 1 -b_stratgey 2 -flags ilme+ildct -maxrate 9M -bufsize 224k -c:a mp2 -b:a 224k "output" It works all right, but the quality is very low. And I noticed during encoding, qp is floting around 31, what's wrong? After disabled ildct and ilme, the quality is normal. Is the command incorrect? Due to the lack of information about codec mpeg2 video, I'm not sure about the sc_threshold, b_strategy and the dia_size value. How can i get detailed information? ___ 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] Streaming overseas
On the receiver side, set the latency around 600ms https://ffmpeg.org/ffmpeg-protocols.html#srt -Original Message- From: ffmpeg-user [mailto:ffmpeg-user-boun...@ffmpeg.org] On Behalf Of Manuel Alejandro Sent: 03 February 2019 16:18 To: FFmpeg user questions Subject: Re: [FFmpeg-user] Streaming overseas Hi Mustafa Al Ani, How do you deal with the delay variations when loss of unrecoverable packets occurs? In my case, the delay decreases. For example, it goes from 400ms to 0ms. The playback jumps forward. At the moment I do not know how to avoid this. On Sun, Feb 3, 2019 at 7:36 AM Mustafa Al Ani wrote: > I second Alex, > > We use SRT to send low latency stream from Copenhagen Denmark to NY, Ohio, > and LA in the USA. > > R, > Mustafa > > On Thu, Dec 20, 2018 at 4:30 PM Alex Molon > wrote: > > > SRT forever! > > > > Simple, stable, low latency, transports any MPEG-TS content. > > It is designed expressely for hi quality streams over internet. > > > > Alex :) > > > > -Original Message- > > From: ffmpeg-user [mailto:ffmpeg-user-boun...@ffmpeg.org] On Behalf Of > > Louis Letourneau > > Sent: 05 November 2018 18:44 > > To: FFmpeg user questions > > Subject: Re: [FFmpeg-user] Streaming overseas > > > > > Hello Louis, > > > > > > Have you take a look at SRT protocol ? > > > > > > Source code : https://github.com/Haivision/srt > > > > > > Latest FFmpeg handle this protocol (if i am not wrong). > > > > > > > > > I didn't know about it. I will try it as soon as i can. It seems > > interesting. > > > > Louis > > > > > > > ___ > > 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". > ___ > 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". ___ 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".
