Welcome to Doom9's Forum, THE in-place to be for everyone interested in DVD conversion. Before you start posting please read the forum rules. By posting to this forum you agree to abide by the rules. |
|
|
Thread Tools | Search this Thread | Display Modes |
|
12th June 2018, 18:54 | #1 | Link |
Broadcast Encoder
Join Date: Nov 2013
Location: Royal Borough of Kensington & Chelsea, UK
Posts: 2,904
|
MpegMapperSegmented::CalcDiskToDisplayOffset (XDCAM AVID)
Hi,
with the latest development version of ffmpeg (ffmpeg-20180611-8c20ea8), it seems that some files are not correctly muxed in .MXF. I’ve used the following command line: Code:
C:\Encoding\ffmpeg.exe -i "%%~nxF" -pix_fmt yuv422p -vcodec mpeg2video -s 1920:1080 -aspect 16:9 -vf setfield=tff -flags +ildct+ilme -r 25 -b:v 50000k -minrate 50000k -maxrate 50000k -bufsize 36408333 -acodec pcm_s24le -ar 48000 -g 12 -bf 2 -profile:v 0 -level:v 2 -color_range 1 -color_primaries 1 -color_trc 1 -colorspace 1 -f mxf "C:\Encoding\%%~nF encoded.mxf" The encoding starts but at the end I get: The encoded video plays fine on VLC, MPC-HP and PotPlayer, however if I import it into AVID Media Composer or if I link it it displays an error. If I try to transcode the original file in AVID, it works flawlessly, which is weird. I've also tried to pipe Avisynth to ffmpeg and encode, but it didin't solve the problem: Code:
video=FFVideoSource("test.mp4") audiook=FFAudioSource("test.mp4") audio=MergeChannels(audiook, audiook, audiook, audiook) AudioDub(video, audio) ResampleAudio(48000) Normalize(0.20) ConvertAudioTo24bit() Limiter(min_luma=16, max_luma=235, min_chroma=16, max_chroma=240) ConvertFPS(50) Spline64ResizeMT(1920, 1080) assumeTFF() separatefields() selectevery(4,0,3) weave() Converttoyv16(interlaced=true) This is not the first time I have to deal with this. It's odd. I managed to encode it already, but I decided to report this here 'cause it's odd. Original File + Encoded File: https://we.tl/A9Cgvr79zn Is it ffmpeg? Is it AVID? Who's guilty? Last edited by FranceBB; 12th June 2018 at 18:57. |
18th April 2019, 22:46 | #2 | Link |
Registered User
Join Date: Nov 2004
Location: Poland
Posts: 2,843
|
It's rather ffmpeg. It's not a "precise" tool and sometimes it doesn't follow some specs etc. AVID from other hand requires things to be precise, sometimes even too much
This info about missing frame doesn't look "good" in ffmpeg. Last edited by kolak; 18th April 2019 at 22:48. |
24th April 2019, 23:13 | #3 | Link | |
Broadcast Encoder
Join Date: Nov 2013
Location: Royal Borough of Kensington & Chelsea, UK
Posts: 2,904
|
Quote:
It's sad 'cause the only other open source encoder capable to encode in MPEG-2 that I know is x262, but it does have its own issues... Last but not least, there's ffmbc, but it's not the panacea to each and every issue either... |
|
5th May 2019, 12:03 | #5 | Link |
Broadcast Encoder
Join Date: Nov 2013
Location: Royal Borough of Kensington & Chelsea, UK
Posts: 2,904
|
It's not, that's why I was using ffmpeg.
Anyway, since I only need an encoder as I pipe the A/V stream from Avisynth, I was trying ffmbc as well 'cause even if it's outdated and it doesn't have new decoders, I only need to encode an uncompressed audio/video stream. Besides, I don't think MPEG-2 encoders are updated frequently (or at all) nowadays... |
Thread Tools | Search this Thread |
Display Modes | |
|
|