Re: [FFmpeg-user] DeckLink Output Controls

> > Although that is in the official spec, I have never seen any SDI equipment > use > anything other than 48k. Doesn’t mean any doesn’t exist, but if so it’s not > very common. > I agree. I have seen some SDI converters and embedders/de-embedders working with 32Khz, 44.1Khz and 48Khz, but so far

Re: [FFmpeg-user] DeckLink Output Controls

> > SDI is 20bit 48k audio only. There’s really no good reason for anything > else. > Technically SDI also supports 48048 and 47952 to allow for pull up/down, > but I > think that is done by manipulating the clock rather than explicitly > changing > the sample rate. SD-SDI PCM Audio is 20 bits, b

Re: [FFmpeg-user] Selecting/dropping frames without re-encoding

I'm not sure that what Mikhail wants really exists. If I understand correctly, you want to retain original encoding and drop one frame every two frames. If this would be possible, you would have to work at the DNxHD inner level, identify each frame start/end (by headers), bit-stream copy whichever

Re: [FFmpeg-user] MXF to MP4 Conversion Problem

I've had some luck on using Quicktime MOV containers to retain uncompressed PCM audio tracks. Quicktime MOV files accept uncompressed PCM audio natively and since MP4 and MOV are quite similar, this may also be a good alternative if the file is intended to be used on an environment that accepts bot

Re: [FFmpeg-user] Mpg

Looking back at the earlier posts of this thread I realize that Juan just wanted to convert a Quicktime MOV file into MPEG-2 with TS Container, and add (2 or more) subtitle tracks from source SRT files that could be switched using whatever software (VLC maybe). The problem is that MPEG-2 in TS onl

Re: [FFmpeg-user] Mpg

> > But i got error > bad option 'ac53' '1' > Ahh, nothing like actually trying the command. The "a53cc" option has to be used outside the internal parameters of x264. ffmpeg -i INPUT.mpg -c:v libx264 -x264opts keyint=123:min-keyint=20 -a53cc 1 -an -f mpegts OUTPUT.ts Here is a (working and test

Re: [FFmpeg-user] Mpg

> > He mentioned a53cc, which appears as a flag to libx264 ("-a53cc true") and >> enables ... something. I've given it a brief look, but couldn't figure how >> it's supposed to work. I was hoping someone might have experience with it, >> because it must have a reason for it to be in the code. >> >

Re: [FFmpeg-user] Transport Stream Descriptors

> > Iirc, this is not possible (there may have been a patch once, > not sure), patch probably welcome! Track #5837 created, thank you Carl Eugen. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To uns

Re: [FFmpeg-user] Transport Stream Descriptors

> > Use "-mpegts_flags +system_b" to get Private Descriptor 0x06. > (0x81 is ATSC for AC-3) > Thank you Carl Eugen, the "-mpegts_flags +system_b" option does apply a descriptor of 0x6 to the audio tracks as per DVB specs. However, I would still like to go back to ATSC version and try to recreate t

[FFmpeg-user] Transport Stream Descriptors

Hello everyone, I am using ffmpeg to remultiplex some MPEG-2 Transport Stream content, but the audio tracks in the resulting file seem to miss some of the original information and/or descriptors. Below is the original file, read by ffmpeg C:\>ffmpeg -i 05930096_movie.mpg ffmpeg version N

Re: [FFmpeg-user] MTS to MOV with different audio codec

If you are working on a Mac, you may use some Quicktime Metadata tool to verify which information (if any) for scan type is stored in the MOV container. JES Extensifier may serve your purpose in this case ( https://jeschot.home.xs4all.nl/home.html). The information stored in container may sometim

Re: [FFmpeg-user] Streaming (over UDP or RTP) MPEG-TS with multiple scrambled video

Take a look into tsdecrypt ( http://georgi.unixsol.org/programs/tsdecrypt/tsdecrypt_man.html). It seems to be exactly the kind of application you need to stream encrypted TS files through RTP or UDP. If you need it to run in windows, there is a webpage in japanese ( http://pspunch.com/pd/article/

Re: [FFmpeg-user] Slicing a 4K video to images and then encoding them back using the same codec

;? You may also post a request at the FFmpeg's but track system <https://trac.ffmpeg.org/> for a feature within ffmpeg that could accomplish this. Regards, Marcelo Boufleur ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user

Re: [FFmpeg-user] Converting a 23.98p source to 29.97i ProRes w/interlaced 3:2 pulldown?

>Why is "-r 3/1001" necessary? >Is there a bug? "-r 3/1001" in not necessary, and there aren't any bugs related to this code/syntax. This section may or may not be included in the final command line, it will not change the output (for this particular case). It may, however, serve as a vis

Re: [FFmpeg-user] Converting a 23.98p source to 29.97i ProRes w/interlaced 3:2 pulldown?

/doxygen/2.8/movenc_8c_source.html > { "write_colr", "Write colr atom (Experimental, may be renamed or > changed, do not use from scripts)", Marcelo Boufleur ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user

Re: [FFmpeg-user] Slicing a 4K video to images and then encoding them back using the same codec

From what I understood from Liran's original post, he meant to grab the original file encoding parameters, and use them to encode the processed video than has undergone through ffmpeg's filter chain. The "same quality" in this case would be better translated as "same encoding parameters". If that

Re: [FFmpeg-user] decoding jpeg2000 problem

> > Iirc, ImageMagick does not support xyz, so this is always > broken. ImageMagick does support xyz. The correct commad line for XYZ to RGB conversion can be found here . I always felt that previous versions of FFmpeg missed the

Re: [FFmpeg-user] How to embed SCC closed caption file into a video file mov/mp4/mpg

> > IMHO the most common needed scenario for scc is to embed scc as > CEA-708/608 data into mpeg2video (such as XDCam). If helpful I can provide > a short XDCam sample without captions, a corresponding scc file, and the > mux result of captions within xdam. I believe MXF closed captions work simi

Re: [FFmpeg-user] How to embed SCC closed caption file into a video file mov/mp4/mpg

Indeed, this can be used to add SRT subtitles into MP4, but the original post mentioned if ffmpeg could handle SCC Closed Caption files, and if it could embed these into MOV/MP4/MPEG files. This can be achieved with MacCaptions / CaptionMaker, but the original poster is interested in open source s

Re: [FFmpeg-user] How to embed SCC closed caption file into a video file mov/mp4/mpg

I created another SRT file with the fixes and uploaded it to the ffmpeg track site. The original SRT also had wrong timmings for the subtitles, and that was also fixed. It is also better to mention that the original SCC file is 29.97 Non Drop Frame. There is a webpage with lots of informations ab

Re: [FFmpeg-user] H.264 Quicktime encoded file stutters

be something or some timebase in the final Quicktime container that my get messed up in Apple software and/or workflow (the "tbn" perhaps?). 2014-11-27 17:33 GMT-02:00 Marcelo Boufleur : > Hello everyone, > > I am still quite new to ffmpeg, but I'm already using i

[FFmpeg-user] H.264 Quicktime encoded file stutters

Hello everyone, I am still quite new to ffmpeg, but I'm already using it to convert some content - mostly to Quicktime format. During one of these attempts, I wanted to convert a JPEG2000 MXF file from a DCP into Quicktime file with H.264 codec, that would mimic the same experience as if the file