still no mxf?

pantau · 23rd February 2012, 13:56

i'm trying to find a way to get avisynth to work directly with avid mxf files. is there still no import plugin around? thanks!

TheFluff · 23rd February 2012, 14:12

ffvideosource should be able to open mxf. There's also this that may or may not work better (I just googled "avisynth mxf" to find it; perhaps you should have done the same before posting this thread?).

pantau · 23rd February 2012, 15:46

thanks for your answer... it's not working for me, but maybe i'm doing something wrong...

i use megui, and ffms is part of it, so my script reads:

LoadPlugin("C:\Program Files (x86)\MeGUI 0.3.5\tools\ffms\ffms2.dll")
FFVideoSource("E:\Avid MediaFiles\MXF\1\ecohhh3AA01.4F395DB7.E24FF0")

the error i encounter is "FFVideoSource: Can't open ..."

am i maybe not loading the plugin the right way?

poisondeathray · 23rd February 2012, 17:49

maybe you mistyped the filename?

Quote:

FFVideoSource("E:\Avid MediaFiles\MXF\1\ecohhh3AA01.4F395DB7.E24FF0")

E24FF0 doesn't look like an .mxf extension ?

pantau · 23rd February 2012, 17:59

thanks, you're right of course, i forgot the .mxf ending...

but now the error i get is: "no video track found"

poisondeathray · 23rd February 2012, 18:00

What kind of mxf file, what compression ?

Use mediainfo if you don't know

pantau · 23rd February 2012, 18:05

they are native HDV files

poisondeathray · 23rd February 2012, 18:09

xdcam or mpeg2 in mxf opens fine with ffvideosource, so hdv should too as well - maybe something peculiar about your particular files ?

you can try re-wrapping with ffmpeg into a transport stream first

pantau · 23rd February 2012, 19:23

how would i do that? could you give me a hint on how the ffmpeg command line would look to get a transport stream output?

poisondeathray · 23rd February 2012, 19:24

ffmpeg -i input.mxf -vcodec copy -acodec copy -f mpegts output.m2ts

or you can just demux it to m2v and use dgindex (hdv is just mpeg2)

pantau · 23rd February 2012, 19:37

sorry for my ignorance, do i have to specify to vcodec and acodec? running the script like this i get a "-vcodec: no such file or directory" error.

"C:\Program Files\ffmpeg-git-a923b6b-win64-static\bin\ffmpeg.exe" -i -vcodec copy -acodec copy -f mpegts "E:\EcoHHH\output.m2ts"

poisondeathray · 23rd February 2012, 19:38

Quote:

Originally Posted by pantau

sorry for my ignorance, do i have to specify to vcodec and acodec? running the script like this i get a "-vcodec: no such file or directory" error.

"C:\Program Files\ffmpeg-git-a923b6b-win64-static\bin\ffmpeg.exe" -i -vcodec copy -acodec copy -f mpegts "E:\EcoHHH\output.m2ts"

you didn't specify the input file; it's blank after the -i

-i inputfile.mxf

pantau · 23rd February 2012, 19:42

i see... now it works, but the output is zero bytes:

Input #0, mxf, from 'E:\Avid MediaFiles\MXF\1\ecohhh3AA01.4F395DB7.E24FF0.mxf':
Duration: 00:30:01.36, start: 0.433771, bitrate: 770 kb/s
Stream #0:0: Data: none
Output #0, mpegts, to 'E:\EcoHHH\output.m2ts':
Output file #0 does not contain any stream

TheFluff · 23rd February 2012, 19:57

Judging by that output it looks like the file is encrypted. ffmpeg detects a track, but can't detect its type (audio/video) or compression method. Since ffvideosource is based on ffmpeg, it gets the same result and you get the error "no video track found".

pantau · 23rd February 2012, 19:59

so demuxing to m2v wouldn't work either?

TheFluff · 23rd February 2012, 20:00

Quote:

Originally Posted by pantau

so demuxing to m2v wouldn't work either?

I guess that depends on what you use for that task. Try it and see if it works?

TheFluff · 23rd February 2012, 20:01

I guess the problem could also just be a bug in ffmpeg, I can't really tell. If you upload a sample file I guess I could take a look.

pantau · 23rd February 2012, 20:06

could you help me how to demux that with ffmpeg? in the documentation there is no mpeg demuxer...

unfortunately i also lack the knowledge to work with http://code.google.com/p/dcinematools/ (no idea on how to compile that)

the smallest file i have is 27MB; if i separate it it won't probably be the same. i'll send a yousendit link to it as soon as it is uploaded...

TheFluff · 23rd February 2012, 20:35

The dcinematools package only supports jpeg2k compression.

What gave you the impression that ffmpeg would support demuxing the stream when it can't read it?

pantau · 23rd February 2012, 20:45

Quote:

Originally Posted by TheFluff

I guess that depends on what you use for that task. Try it and see if it works?

i guess i misunderstood your remark. so what else could i use to demux?

here's the link of a short piece of mxf video:

https://rcpt.yousendit.com/138761714...000000&s=19105

23rd February 2012, 13:56	#1 \| Link
pantau Registered User Join Date: Sep 2010 Posts: 49	still no mxf? i'm trying to find a way to get avisynth to work directly with avid mxf files. is there still no import plugin around? thanks!

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23rd February 2012, 14:12	#2 \| Link
TheFluff Excessively jovial fellow Join Date: Jun 2004 Location: rude Posts: 1,100	ffvideosource should be able to open mxf. There's also this that may or may not work better (I just googled "avisynth mxf" to find it; perhaps you should have done the same before posting this thread?).

23rd February 2012, 15:46	#3 \| Link
pantau Registered User Join Date: Sep 2010 Posts: 49	thanks for your answer... it's not working for me, but maybe i'm doing something wrong... i use megui, and ffms is part of it, so my script reads: LoadPlugin("C:\Program Files (x86)\MeGUI 0.3.5\tools\ffms\ffms2.dll") FFVideoSource("E:\Avid MediaFiles\MXF\1\ecohhh3AA01.4F395DB7.E24FF0") the error i encounter is "FFVideoSource: Can't open ..." am i maybe not loading the plugin the right way?

23rd February 2012, 17:59	#5 \| Link
pantau Registered User Join Date: Sep 2010 Posts: 49	thanks, you're right of course, i forgot the .mxf ending... but now the error i get is: "no video track found"

23rd February 2012, 18:00	#6 \| Link
poisondeathray Registered User Join Date: Sep 2007 Posts: 5,669	What kind of mxf file, what compression ? Use mediainfo if you don't know

23rd February 2012, 18:05	#7 \| Link
pantau Registered User Join Date: Sep 2010 Posts: 49	they are native HDV files

23rd February 2012, 18:09	#8 \| Link
poisondeathray Registered User Join Date: Sep 2007 Posts: 5,669	xdcam or mpeg2 in mxf opens fine with ffvideosource, so hdv should too as well - maybe something peculiar about your particular files ? you can try re-wrapping with ffmpeg into a transport stream first

23rd February 2012, 19:23	#9 \| Link
pantau Registered User Join Date: Sep 2010 Posts: 49	how would i do that? could you give me a hint on how the ffmpeg command line would look to get a transport stream output?

23rd February 2012, 19:24	#10 \| Link
poisondeathray Registered User Join Date: Sep 2007 Posts: 5,669	ffmpeg -i input.mxf -vcodec copy -acodec copy -f mpegts output.m2ts or you can just demux it to m2v and use dgindex (hdv is just mpeg2)

23rd February 2012, 19:37	#11 \| Link
pantau Registered User Join Date: Sep 2010 Posts: 49	sorry for my ignorance, do i have to specify to vcodec and acodec? running the script like this i get a "-vcodec: no such file or directory" error. "C:\Program Files\ffmpeg-git-a923b6b-win64-static\bin\ffmpeg.exe" -i -vcodec copy -acodec copy -f mpegts "E:\EcoHHH\output.m2ts"

23rd February 2012, 19:42	#13 \| Link
pantau Registered User Join Date: Sep 2010 Posts: 49	i see... now it works, but the output is zero bytes: Input #0, mxf, from 'E:\Avid MediaFiles\MXF\1\ecohhh3AA01.4F395DB7.E24FF0.mxf': Duration: 00:30:01.36, start: 0.433771, bitrate: 770 kb/s Stream #0:0: Data: none Output #0, mpegts, to 'E:\EcoHHH\output.m2ts': Output file #0 does not contain any stream

23rd February 2012, 19:57	#14 \| Link
TheFluff Excessively jovial fellow Join Date: Jun 2004 Location: rude Posts: 1,100	Judging by that output it looks like the file is encrypted. ffmpeg detects a track, but can't detect its type (audio/video) or compression method. Since ffvideosource is based on ffmpeg, it gets the same result and you get the error "no video track found".

23rd February 2012, 19:59	#15 \| Link
pantau Registered User Join Date: Sep 2010 Posts: 49	so demuxing to m2v wouldn't work either?

23rd February 2012, 20:01	#17 \| Link
TheFluff Excessively jovial fellow Join Date: Jun 2004 Location: rude Posts: 1,100	I guess the problem could also just be a bug in ffmpeg, I can't really tell. If you upload a sample file I guess I could take a look.

23rd February 2012, 20:06	#18 \| Link
pantau Registered User Join Date: Sep 2010 Posts: 49	could you help me how to demux that with ffmpeg? in the documentation there is no mpeg demuxer... unfortunately i also lack the knowledge to work with http://code.google.com/p/dcinematools/ (no idea on how to compile that) the smallest file i have is 27MB; if i separate it it won't probably be the same. i'll send a yousendit link to it as soon as it is uploaded...

23rd February 2012, 20:35	#19 \| Link
TheFluff Excessively jovial fellow Join Date: Jun 2004 Location: rude Posts: 1,100	The dcinematools package only supports jpeg2k compression. What gave you the impression that ffmpeg would support demuxing the stream when it can't read it?