[FFmpeg-user] Piping output of ffmpeg into ffmbc
Erik Dobberkau
erik.dobberkau at gmail.com
Sat Aug 20 14:41:51 EEST 2016
2016-08-19 22:43 GMT+02:00 Keith Reilly <kreilly at retroreport.com>:
> wrote:
>
> > > > 2016-08-18 23:23 GMT+02:00 Paul B Mahol <onemda at gmail.com>:
> > > >
> > > > > On 8/18/16, Keith Reilly <kreilly at retroreport.com> wrote:
> > > > > > I use ffmbc to create Avid supported files for fast import
> (ffmpeg
> > > > > doesn't
> > > > > > do this). ffmbc is behind in development so there are codecs it
> > > cannot
> > > > > read
> > > > > > that i need it to. My solution is to simply read the file with
> > ffmpeg
> > > > and
> > > > > > pass it on to ffmbc via standard output that way i can make Avid
> > > media
> > > > > with
> > > > > > anything ffmpeg reads. However i have an issue. I do not get the
> > > whole
> > > > > > video converted.
> > > > > >
> > > > > > I'm running on Mac os 10.11.6 ffmpeg was installed with
> macports,
> > > > ffmbc
> > > > > > from source. The video is about 1 hour 27 min long, i get
> roughly 5
> > > > > minutes
> > > > > > of the imx50 file that is perfect except for the missing hour and
> > > > 22min.
> > > > > >
> > > > > > console input:
> > > > > > ffmpeg -i _Youtube.webm -c:v rawvideo -c:a pcm_s16le -f avi
> pipe:1
> > |
> > > > > ffmbc
> > > > > > -i pipe:0 -r 29.97 -target imx50 _Youtube.mxf
> > > > > >
> > > > > > output:
> > > > > >
> > > > > > ffmpeg version 3.1.1 Copyright (c) 2000-2016 the FFmpeg
> developers
> > > > > >
> > > > > > built with Apple LLVM version 7.3.0 (clang-703.0.31)
> > > > > >
> > > > > > configuration: --prefix=/opt/local --enable-swscale
> > > --enable-avfilter
> > > > > > --enable-avresample --enable-libmp3lame --enable-libvorbis
> > > > > --enable-libopus
> > > > > > --enable-libtheora --enable-libschroedinger --enable-libopenjpeg
> > > > > > --enable-libmodplug --enable-libvpx --enable-libsoxr
> > > --enable-libspeex
> > > > > > --enable-libass --enable-libbluray --enable-lzma --enable-gnutls
> > > > > > --enable-fontconfig --enable-libfreetype --enable-libfribidi
> > > > > > --disable-indev=jack --disable-outdev=xv
> > > --mandir=/opt/local/share/man
> > > > > > --enable-shared --enable-pthreads --cc=/usr/bin/clang
> --enable-vda
> > > > > > --enable-audiotoolbox --enable-videotoolbox --arch=x86_64
> > > --enable-yasm
> > > > > > --enable-gpl --enable-postproc --enable-libx264 --enable-libxvid
> > > > > >
> > > > > > libavutil 55. 28.100 / 55. 28.100
> > > > > >
> > > > > > libavcodec 57. 48.101 / 57. 48.101
> > > > > >
> > > > > > libavformat 57. 41.100 / 57. 41.100
> > > > > >
> > > > > > libavdevice 57. 0.101 / 57. 0.101
> > > > > >
> > > > > > libavfilter 6. 47.100 / 6. 47.100
> > > > > >
> > > > > > libavresample 3. 0. 0 / 3. 0. 0
> > > > > >
> > > > > > libswscale 4. 1.100 / 4. 1.100
> > > > > >
> > > > > > libswresample 2. 1.100 / 2. 1.100
> > > > > >
> > > > > > libpostproc 54. 0.100 / 54. 0.100
> > > > > >
> > > > > > FFmbc version 0.7.4
> > > > > >
> > > > > > Copyright (c) 2008-2015 Baptiste Coudurier and the FFmpeg
> > developers
> > > > > >
> > > > > > Input #0, matroska,webm, from '/Volumes/RR295-KENNEDY_1/_
> > > > Youtube.webm':
> > > > > >
> > > > > > Metadata:
> > > > > >
> > > > > > encoder : Lavf56.1.0
> > > > > >
> > > > > > Duration: 01:27:33.64, start: 0.000000, bitrate: 480 kb/s
> > > > > >
> > > > > > Stream #0:0(eng): Video: vp9 (Profile 0), yuv420p(tv),
> 640x480,
> > > SAR
> > > > > 1:1
> > > > > > DAR 4:3, 29.97 fps, 29.97 tbr, 1k tbn, 1k tbc (default)
> > > > > >
> > > > > > Stream #0:1(eng): Audio: vorbis, 44100 Hz, stereo, fltp
> > (default)
> > > > > >
> > > > > > [avi @ 0x7fcd6c83f000] Using AVStream.codec to pass codec
> > parameters
> > > to
> > > > > > muxers is deprecated, use AVStream.codecpar instead.
> > > > > >
> > > > > > Last message repeated 1 times
> > > > > >
> > > > > > Output #0, avi, to 'pipe:1':
> > > > > >
> > > > > > Metadata:
> > > > > >
> > > > > > ISFT : Lavf57.41.100
> > > > > >
> > > > > > Stream #0:0(eng): Video: rawvideo (I420 / 0x30323449),
> yuv420p,
> > > > > 640x480
> > > > > > [SAR 1:1 DAR 4:3], q=2-31, 200 kb/s, 29.97 fps, 29.97 tbn, 29.97
> > tbc
> > > > > > (default)
> > > > > >
> > > > > > Metadata:
> > > > > >
> > > > > > encoder : Lavc57.48.101 rawvideo
> > > > > >
> > > > > > Stream #0:1(eng): Audio: pcm_s16le ([1][0][0][0] / 0x0001),
> > 44100
> > > > Hz,
> > > > > > stereo, s16, 1411 kb/s (default)
> > > > > >
> > > > > > Metadata:
> > > > > >
> > > > > > encoder : Lavc57.48.101 pcm_s16le
> > > > > >
> > > > > > Stream mapping:
> > > > > >
> > > > > > Stream #0:0 -> #0:0 (vp9 (native) -> rawvideo (native))
> > > > > >
> > > > > > Stream #0:1 -> #0:1 (vorbis (native) -> pcm_s16le (native))
> > > > > >
> > > > > > Press [q] to stop, [?] for help
> > > > > >
> > > > > > Input #0, avi, from 'pipe:0':
> > > > > >
> > > > > > Metadata:
> > > > > >
> > > > > > encoder: Lavf57.41.100
> > > > > >
> > > > > > Duration: 9951:59:45.52, bitrate: N/A
> > > > > >
> > > > > > Stream #0.0(und): Video: rawvideo, yuv420p, 640x480p, PAR 1:1
> > DAR
> > > > > 4:3,
> > > > > > 29.97 fps
> > > > > >
> > > > > > Stream #0.1(und): Audio: pcm_s16le, 44100 Hz, 2 channels,
> s16,
> > > 1411
> > > > > kb/s
> > > > > >
> > > > > > [scale @ 0x7fde69c03a00] w:640 h:480 fmt:yuv420p -> w:640 h:480
> > > > > fmt:yuv422p
> > > > > > flags:0x4 il:0
> > > > > >
> > > > > > Auto-rescaling to imx50 resolution
> > > > > >
> > > > > > [scale @ 0x7fde69c038a0] w:640 h:480 fmt:yuv420p -> w:720 h:486
> > > > > fmt:yuv422p
> > > > > > flags:0x4 il:-1
> > > > > >
> > > > > > [pad @ 0x7fde69c03cc0] w:720 h:486 -> w:720 h:512 x:0 y:26
> > > > > > color:0x108080FF[yuva]
> > > > > >
> > > > > > Output #0, mxf_d10, to '/Volumes/RR295-KENNEDY_1/_Youtube.mxf':
> > > > > >
> > > > > > Metadata:
> > > > > >
> > > > > > encoder: FFmbc 0.7
> > > > > >
> > > > > > Stream #0.0(und): Video: mpeg2video, yuv422p, 720x512i tff
> [PAR
> > > > > 128:135
> > > > > > DAR 4:3], cbr, 50000 kb/s, 29.97 fps
> > > > > >
> > > > > > Stream #0.1(und): Audio: pcm_s16le, 48000 Hz, 2 channels,
> s16,
> > > 1536
> > > > > kb/s
> > > > > >
> > > > > > Stream mapping:
> > > > > >
> > > > > > Stream #0.0 -> #0.0
> > > > > >
> > > > > > Stream #0.1 -> #0.1
> > > > > >
> > > > > > frame=157451 fps=212 q=-0.0 Lsize=71762491kB time=01:27:33.64
> > > > > > bitrate=111899.2kbits/s speed=7.09x
> > > > > >
> > > > > > video:70852950kB audio:905022kB subtitle:0kB other streams:0kB
> > global
> > > > > > headers:0kB muxing overhead: 0.006298%
> > > > > >
> > > > > > frame= 9202 fps= 12 q=1.0 Lsize= 2346517kB time=00:05:07.04
> > > > > > bitrate=62606.4kbits/s
> > > > > >
> > > > > > video:1874018kB audio:57571kB global headers:0kB muxing overhead
> > > > > 21.481172%
> > > > > >
> > > > > > Homicidal-Psycho-Jungle-Cat: keithreilly$
> > > > >
> > > > > Not our bug.
> > > > > _______________________________________________
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> > > > >
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> > > > >
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> > > >
> > >
> >
> >
> > > On Fri, Aug 19, 2016 at 7:10 AM, Erik Dobberkau <
> > erik.dobberkau at gmail.com>
> > > wrote:
> > >
> > > > Hi Keith,
> > > >
> > > > you don't need ffmbc to create IMX MXF OP1a that can be read by Avid,
> > you
> > > > can do this with ffmpeg alone. I guess you also mean AMA linking, not
> > > fast
> > > > importing, right? (I'm testing on MC 7.0.5 here and the only way to
> get
> > > an
> > > > MXF file into the project is AMA linking)
> > > > What ffmpeg can't do atm (or I'm just doing it wrong), is create
> > OP-Atom
> > > > files that Avid accepts.
> > > >
> > > > The command most sites link to (the old ffmpeg_howto) is correct (in
> > Avid
> > > > terms) for the most part, but you need to pad your scaled (active)
> > video
> > > > with 32 VBI lines (black) at the top. You also need to manipulate
> your
> > > > audio to meet IMX standards.
> > > >
> > > > Erik
> > > >
> > >
> >
> > > 2016-08-19 17:17 GMT+02:00 Keith Reilly <kreilly at retroreport.com>:
> > > Erik,
> > > I was specifically thinking of fast import. I haven't been able to get
> > > ffmpeg to create media for fast import, thats why i'm using ffmbc. Am I
> > > correct in understanding that for fast import ffmpeg will not work?
> That
> > is
> > > what i have read and all my experiments with ffmpeg to create media for
> > > fast import have failed.
> > >
> > > This is the first time i am trying to pipe the output of ffmpeg and i
> > > thought maybe there was something wrong with my command that was
> causing
> > > the error. I guess this is not the case and i'll just have to
> experiment.
> > > Thanks.
> > >
> > > Keith
> >
> > Keith,
> >
> > What MediaComposer version are you running? And you can right-click in
> your
> > bin, choose "Import..." and import a MXF file (created with ffmbc)?
> > Seriously?
> > Because I can't - just do AMA linking (and transcode afterwards). The
> only
> > file (containers) I know of to perform fast imports are QuicktTime MOVs.
> >
> > Erik
> >
>
> sorry for the top post. didn't realize that was part of the etiquette and
> didn't even know what top post meant.
> Erik,
> As far as fast importing into avid i have been able to do this with avid
> 7 and 8 with the method you just described, right-click in a bin choose
> import and just select what drive you want it to copy the media. It does
> the fast import, re-wrap no transcoding. This is the command i use: 'ffmbc
> -i <input file> -r 29.97 -target imx50 <output file>.mxf' - make sure you
> end the output file with '.mxf'
> Although ffmbc also supports XDCam it always errors out on me because there
> aren't 8 channels of audio. imx50 works fine for my purposes. The only road
> block is ffmbc doesn't open webm videos and a few others. Thats why i'm
> trying to use ffmpeg to decode and pipe it to ffmbc. Also i've only tried
> this with standard def material. don't know what will happen with high def.
> I"m working from an archive
>
>
Keith,
I've run a few tests here, atm MC will import both ffmbc and
ffmpeg-generated MXF (I just had wrong MC settings), but neither imports as
"fast-import", though it's quite speedy (1:30 imports in 3 secs, but the
progress dialog doesn't say "fast import"). Anyhoo.
What I found out is ffmpeg IMX50 is a (few) bit(s) different from ffmbc
IMX50, there's a 512byte offset difference of the position of the first
packet in the file (ffmpeg's header being shorter), but everything else can
be tuned to be identical as far as I can see here atm.
Also, there seems to be a slight deviation from the IMX standard in ffmbc,
because by default it outputs 4ch audio, each with 16 bits word length, in
one stream, but to my knowledge it should be 24 bits when using 4ch only,
but I don't know if this is optional or mandatory.
When using HD, ffmpeg does generate pretty decent XDCAM-HD422 when tuned
correctly, I did an import comparison with original PDW-700 footage, it's
also the same speed, but neither is being prompted as "fast import". Gee.
Sorry not to be a better help here.
Erik
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