Re: [FFmpeg-user] verifying losslessness after merging two mono tracks into single stereo track

I am very sorry - Outlook Web App sent the email when I tried to copy paste the command - also it won't let me bottom post! i promise that future emails will be in the correct format. This is the command I used to do a one second test where the intention is to merge two mono audio tracks into

[FFmpeg-user] verifying losslessness after merging two mono tracks into single stereo track

Hi, I have a video file that has two 24-bit PCM audio tracks which should just be one paired stereo track. After looking at the wiki, it seems that this is the best command? -- This email has been scanned for spam and malware by The Email Laundry.

[FFmpeg-user] Matroska decoding errors - element at * ending at * exceeds containing master element ending at *

25 fps=0.0 q=-0.0 Lsize=N/A time=00:00:01.00 bitrate=N/A speed= 84x video:13kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown Best, Kieran O'Leary Irish Film Institute -- This email has been scanned for spam and malware by The Email Laundry.

Re: [FFmpeg-user] Error message when combining -vf and -af in command line

It appears that this is ticket 7712: https://trac.ffmpeg.org/ticket/7712 and it was introduced here: https://github.com/FFmpeg/FFmpeg/commit/301cee61fa61c55b1c178ebfbc590872e8b033e6 as an attempt to fix an existing bug: https://trac.ffmpeg.org/ticket/4184 Best, Kieran. ___

Re: [FFmpeg-user] Copy Audio

p.s ffplay from git master performs the same way. $ ./ffplay '/Volumes/kieran_tests/zip_sip_outputs/aaa0013/2a215d97-39a7-4bf4-9ca6-46cd7fd766d8/objects/Card 5/BPAV/CLPR/432_4407_01/432_4407_01.MP4' ffplay version N-92900-gaf5b6b45b4 Copyright (c) 2003-2019 the FFmpeg developers built with App

Re: [FFmpeg-user] Copy Audio

Hi, So on OSX El Capitan - VLC 3.4, ffplay 4.1, mpv 0.29.1 will play back 16-bit twos within MP4. Quicktime player will not play back the file. VLC throws up an unsupported codec warning but it still plays it back. $ ffplay '/Volumes/kieran_tests/zip_sip_outputs/aaa0013/2a215d97-39a7-4bf4-9ca6

[FFmpeg-user] skipped frames with 18fps DPX - non monotonically increasing dts to muxer

0.0kbits/MD5=123fb3ff58ca94c842453b518aeb6a9a frame= 14 fps=6.6 q=-0.0 Lsize= 0kB time=00:00:00.77 bitrate= 0.4kbits/s dup=0 drop=3 speed=0.364x video:680400kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown Best, Kieran O'Leary Irish Film I

[FFmpeg-user] Setting colour range.

When creating MOV files, setting the -color_range option does not seem to have any effect. What am I doing wrong? Could it have anything to do with the removal of the yuvj pixel formats? Is setting this metadata even possible in the MOV container, or is it something that is expected to be flagge

[FFmpeg-user] xyz12le Jpeg2000 MXF files in DCP now detected as rgb48le

Hi, I remember that older versions of ffmpeg would detect a pix_fmt of xyz12le when a jpeg2000/MXF file from a DCP was passed as input. Now I see a value of: rgb48le(12 bpc, progressive) Was this intentional, and if so, why did the behaviour change? I tried looking at the commit history for jp

Re: [FFmpeg-user] uncompressed RGB within MXF

Here is a sample - https://wetransfer.com/downloads/99e7bddc04e6faee2e001ad2ebed4a3c20181119152241/ce77f8 This was exported from Resolve 14 using the AVID 1:1 10-bit RGB 1080p setting. Apologies for the delay, Kieran O'Leary -- This email has been scanned for spam and malware by The

Re: [FFmpeg-user] dpx image sequence to ffv1 mkv issues

Hi, Just in terms of the issue: That error message was introduced in December 2006 here: https://github.com/FFmpeg/FFmpeg/commit/38a7834bbb24ef62466b076715e0add60e1d6962 in order to fix this issue with 5k encodes: https://trac.ffmpeg.org/ticket/6005 which refers to a max packet size of 2147483

[FFmpeg-user] AVI interlaced support

Hi, I can't get ffmpeg to produce an interlaced file using setfield or field_order. I don't know too much about the format, but it looks like the OpenDML spec mentions that there is a flag that sets the number of fields per frame. IIs there any way to set interlaced metadata within AVI? Using

Re: [FFmpeg-user] Trying to add metadata media_type to mp4

ea/MediaInfoLib/blob/080212c30baea3f85602eaf61aa8feaedb983971/Source/MediaInfo/Multiple/File_Mpeg4_Elements.cpp#L2682 It looks like what ffmpeg calls media_type is mapped to ContentType in Mediainfo. i can't find any information about either element inthe QuickTime specification, though. Best, Kieran O

[FFmpeg-user] How to use -vf colorspace to convert SMPTE431/432 to bt709?

Hi, I noticed recently that Vittorio Giovara added SMPTE 431/432 support to the colorspace video filter. I often create h264/prores copies of XYZ Digital Cinema Packages via ffmpeg in a film archive. However the colours do not always look correct. By this I mean they do not look the same as whe

[FFmpeg-user] FFV1/rgb48le issue: ffmpeg automatically chooses gbrp16le to decode an rgb48le FFV1 file.

Hi, Thank you so much for adding rgb48le support. It will be of great use and importance to audiovisual archives. When I transcode an rgb48le TIFF to FFV1, the resulting ffv1 file is listed as having a pixel format of gbr16le when I decode it. I can specify a pix_fmt of rgb48le, but it would b

[FFmpeg-user] -vf Colorspace filter - 'Unknown input primaries 2' error

Hello, I want to transcode a DCP to ProRes or x264 while transforming to bt709. I am experimenting with the colorspace filter, as I've found that most DCPS that I've converted have low contrast and washed out colours. As some DCP players (EasyDCP) allow XYZ -> bt709 transforms, I wanted to see

Re: [FFmpeg-user] Data stream/timecode copy to ffv1/matroska

Carl Eugen writes: > Sounds like a performance issue that has nothing to do with mkv vs mov. Do you mean my system specs? 1080p FFV1.mkv plays back with just a little stuttering on a core i5 3570k in VLC, but FFV1.mov just doesn't display video at all, I only get audio on any PC I've tried an

Re: [FFmpeg-user] Data stream/timecode copy to ffv1/matroska

Carl Eugen writes: >Please elaborate, this does not sound like a known issue to me. It's more of an issue with VLC. It plays back SD ffv1.mov just fine, but it only plays back audio for HD content. I've never had any issues with .mkv. I've only ever used ffv1 with 10 bit content. Anyhow this

Re: [FFmpeg-user] Data stream/timecode copy to ffv1/matroska

Hi Carl, As the file is a tape ingest, I was hoping to preserve the timecode if I could. The reason that I wanted to use MKV was that FFV1 doesn't work well for me in non SD resolutions in a .mov container. Keeping HD in v210.mov is just too large a file. Thanks, Kieran. -- This email h

[FFmpeg-user] Data stream/timecode copy to ffv1/matroska

I have a 1080p24 v210.mov file with 2 audio tracks and a data track, which I'm assuming is the timecode. I want to just transcode the video track to ffv1, and copy over everything else into a matroska wrapper. Is there an easier way to do this, and is it possible to carry over timecode to matro

[FFmpeg-user] Framemd5s of file before and after transcode in the one command line

Hello, I am hoping to change the Display Aspect Ratio of a series of files (using -aspect 4:3 -c copy) but make framemd5s (or regular md5s of the decoded stream) before and after the aspect ratio change. I did a test with a h264 transcode, purely to produce a file that would have a different d

Re: [FFmpeg-user] Adding embedded metadata to v210.mov

P.S, Sincere apologies for my mailer settings. Will try to rectify. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user

Re: [FFmpeg-user] Adding embedded metadata to v210.mov

On Tue, Aug 04, 2015 at 10:21:30 -0400, Dave Rice wrote: >You could try: >ffmpeg -i uncommented.mov -map 0 -c copy -metadata comment="your comments >here" commented.mov Thanks Dave. I tried it without the mapping and it worked perfectly. It even showed up in mediainfo. Are there some instances

[FFmpeg-user] Adding embedded metadata to v210.mov

Hello, Is there any way to add custom embedded metadata to a quicktime file via ffmpeg? In particular, I am hoping to embed a unique ID into each file in our collection, which would preferably show up in mediainfo/exiftool/ffprobe. I know very little about this stuff, but I know that some AV/im

Re: [FFmpeg-user] Running multiple ffmpeg commands with minimal loss in quality

Mr. Nice wrote: > How I can know FFV1 is version 1.3? Use the "-level 3" switch. More info here: https://trac.ffmpeg.org/wiki/Encode/FFV1 If you're feeling paranoid about whether your encode was lossless or not, run framemd5s of both files. More info here https://trac.ffmpeg.org/wiki/framemd5

Re: [FFmpeg-user] Cropping small portion of input video while rescaling

Carl Eugen Hoyos writes: >This should be -framerate 24 Is this because I'm using an image sequence? I don't see much info re -framerate in the ffmpeg documentation. What's the main difference between -framerate and -r? >> -r 24 >Remove this one unless there is a (specific) reason. Do you mea

Re: [FFmpeg-user] Cropping small portion of input video while rescaling

Putting the crop filter before the resize in the filter chain produced the desired effect. Any other feedback on my command line would be greatly appreciated. I can't get inline quoting to work on outlook web app (which I have to use today) so I didn't do any quotes. Sorry if this makes things

[FFmpeg-user] Cropping small portion of input video while rescaling

Hello, I am working with a 2k full aperture 16mm DPX scan. It has approx 32 pixels of the black perforation area of the film on the top and bottom. I am hoping to transcode everything to 720/576 v210 as I'm working on a DVD project (I'm going to do a lot of work in a NLE after I transcode). I a

Re: [FFmpeg-user] Framemd5 filter error for atomised Avid 1:10 bit.mxf

> It looks to me both files are 8bit only. The first one with extra stuff > added at begining. ___ That scares me! The bitrate looks close to v210 (220Mbps vs 213Mbps), but it's actually 8-bit video? ___ f

Re: [FFmpeg-user] Framemd5 filter error for atomised Avid 1:10 bit.mxf

> Please also provide the mov file. Carl Eugen ___ This is three frames of colour bars, ingested as avid 1:1 10 bit.mxf, exported same as source.mov. https://dl.dropboxusercontent.com/u/3740512/samesource01.mov -- This email has been scanne

Re: [FFmpeg-user] Framemd5 filter error for atomised Avid 1:10 bit.mxf

-Original Message- From: ffmpeg-user [mailto:ffmpeg-user-boun...@ffmpeg.org] On Behalf Of Paul B Mahol Sent: 10 July 2015 15:23 To: FFmpeg user questions Subject: Re: [FFmpeg-user] Framemd5 filter error for atomised Avid 1:10 bit.mxf On 7/10/15, Kieran O'Leary wrote: > >

Re: [FFmpeg-user] Framemd5 filter error for atomised Avid 1:10 bit.mxf

> framemd5 won't help you determine 'how much' visual difference there is > between an exported file and a reference file. Depending on how you run it, > framemd5 would only confirm if the two files decode to the same raw frame or > different ones, it's a yes/no answer and not a 'how much'. I

Re: [FFmpeg-user] Framemd5 filter error for atomised Avid 1:10 bit.mxf

From: ffmpeg-user [ffmpeg-user-boun...@ffmpeg.org] on behalf of Paul B Mahol [one...@gmail.com] Sent: 10 July 2015 12:09 To: FFmpeg user questions Subject: Re: [FFmpeg-user] Framemd5 filter error for atomised Avid 1:10 bit.mxf Can you provide link to fil

Re: [FFmpeg-user] Framemd5 filter error for atomised Avid 1:10 bit.mxf

From: ffmpeg-user [ffmpeg-user-boun...@ffmpeg.org] on behalf of Paul B Mahol [one...@gmail.com] Sent: 10 July 2015 12:09 To: FFmpeg user questions Subject: Re: [FFmpeg-user] Framemd5 filter error for atomised Avid 1:10 bit.mxf Can you provide link to f

[FFmpeg-user] Framemd5 filter error for atomised Avid 1:10 bit.mxf

Hello, I am trying to get a framemd5 output from an atomised Avid 1:1 10bit.mxf. I'm using Media Composer 8.1.0. Ignore the mention of v210 in the filename, I was just hoping to run some tests (I was wondering how much lossy degradation occurs when capturing using Avid 1:1 10 bit and then expor

[FFmpeg-user] How to output video with only specific Y/U/V bit planes

Hello, I have been playing around with the bit plane filter in QCTools. More info here: http://htmlpreview.github.io/?https://github.com/bavc/qctools/blob/master/Source/Resource/Help/Playback%20Filters/Playback%20Filters.html >From what I understand, QCtools is using ffmpeg to generate all thes

Re: [FFmpeg-user] ffmpeg -g option

Hello, It refers to the Group Of Pictures structure. http://en.wikipedia.org/wiki/Group_of_pictures Best, Kieran. From: ffmpeg-user-boun...@ffmpeg.org [ffmpeg-user-boun...@ffmpeg.org] on behalf of Parag Goyal IMD, Applied Chemistry, IT-BHU, Varanasi (