View Issue Details
|ID||Project||Category||View Status||Date Submitted||Last Update|
|0001103||DCP-o-matic||[All Projects] Features||public||2017-07-24 09:33||2019-01-08 23:55|
|Target Version||Fixed in Version|
|Summary||0001103: Export options|
Output image size, frame rate (including interlaced).
|Tags||No tags attached.|
|Estimated weeks required|
|Estimated work required||Unknown|
What does "framerate" mean here? An arbitrary export framerate different from what the DCP was specified as?
Just my opinion - the export function is a functional side track in DOM. Adding every imaginable option to the export means much work. I think it is completely okay if DOM offers only two options - a 'low quality' (screener), and a high quality (re-use), plus optional audio mixdown. Everything else can be created by other tools with a more dedicated feature set (e.g. handbrake).
I think it is necessary to have a high quality 'reuse' export option, which the MOV option using ProRes is currently targeting. Some people would say uncompressed/lossless image series would be more appropriate.
I noticed that the MP4 export creates unusually high bit rates, some of my lighter machines can not play without frame losses. I guess it makes sense to lower the bitrate for MP4 (or, sigh, make it selectable (low/mid/high), thus making a higher quality ProRes more useful for those who need it.
Everything else can be created by other tools with a more dedicated feature set (e.g. handbrake).
Hi Carsten, don’t bet on Handbrake for DCP to MP4 conversion. Last year I tried (and failed) to convince its stubborn developer team.
I don't count on handbrake to convert from DCP, but to all the other formats mentioned above FROM the exports DOMs creates, so, either from MP4 or Prores.
I think also the option -preset needs to be able to be selected. When I used CRF 17, I got a 100 GB file, which I was able to convert to about 12GB without any perceptible loss in quality.
In the future, exporting to HEVC (x265) might become useful, though it is fairly slow on my computer.
Also, what are the settings for audio? VBR or CBR? What encoder DOM uses, libfdk_aac or aac?
|2017-07-24 09:33||carl||New Issue|
|2017-07-24 14:49||carl||Relationship added||related to 0001075|
|2017-08-15 22:11||carl||Target Version||=> 2.12.0|
|2017-08-21 00:10||carl||Status||new => acknowledged|
|2017-08-21 00:10||carl||Target Version||2.12.0 => 2.14.0|
|2017-08-21 00:11||carl||Note Added: 0001773|
|2017-08-21 11:36||Carsten||Note Added: 0001774|
|2017-08-23 20:43||Cantar4||Note Added: 0001775|
|2017-08-24 11:33||Carsten||Note Added: 0001776|
|2017-08-25 08:56||Cantar4||Note Added: 0001780|
|2017-08-25 09:31||Carsten||Note Added: 0001782|
|2018-06-09 23:41||carl||Relationship added||related to 0001146|
|2018-06-28 22:53||carl||Relationship added||related to 0001331|
|2018-06-28 22:53||carl||Relationship added||related to 0001332|
|2018-10-23 11:email@example.com||Note Added: 0002733|
|2019-01-08 23:55||carl||Target Version||2.14.0 =>|