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Chad Gilmour
January 7, 2016 at 2:30 am in reply to: Can’t export DNxHR with alpha channel

Perhaps I’m picking the wrong export options, but I am able to get an alpha channel with DNxHD, the only problem with DNxHD is that it’s limited to 1920×1080. When I try to use similar settings, or any settings, with DNxHR I can’t export any alpha channel info.
Chad Gilmour
October 22, 2015 at 4:24 pm in reply to: CatDV Standalone with Mixed OS’s

I heard back from CatDV support, I guess there is a little bit of a bug in regards to this issue in CatDV 11.1 and I’m told it will be fixed in the next update.

However CatDV 11.0.7 seems to be working correctly. I’m not sure what the differences between 11.0.7 and 11.1 are though so far I haven’t run into any issues with this version.

Thanks for your help John!
Chad Gilmour
October 14, 2015 at 4:36 pm in reply to: CatDV Standalone with Mixed OS’s

Full windows path for the sample file is “Q:\HD1288 – SFMM HIP Shoot 2014\3_Footage\HIP News Footage \RAW ProRes\CLIP0000180_000.mov”

If I relink or “attach” that file on windows and save, it will be offline when I open the CatDV project on Mac.

I wasn’t sure about the back/forward slashes because it looked like windows/mac was reversing the slash direction in the “Media Path” dialog box.
Chad Gilmour
October 13, 2015 at 9:34 pm in reply to: CatDV Standalone with Mixed OS’s

Thanks, I have tried that and it doesn’t seem to do anything. Maybe I’m doing something wrong or missing a step? Here are screen shots of my media mapping paths…

On Windows:

On Mac:
Chad Gilmour
October 13, 2015 at 5:02 pm in reply to: Batch trim video files

Where did you get help to write your script? I’m always on the look out for good sources for that sort of work and help.
Chad Gilmour
October 13, 2015 at 5:01 pm in reply to: Can ffmpeg create a Prores .mov with an Alpha?

Yeah, it took me a long time before I realized it was actually the DNxHD codec that was the real issue.

Do you know if ffmpeg can combine the RGB or YUV info from one video file, the Alpha from another video file, and then encode 1 prores file with an alpha channel? I know it can kind of do that with audio, wasn’t sure if you could do that with video too.
Chad Gilmour
October 13, 2015 at 2:01 pm in reply to: Batch trim video files

I’m just speculating now, but I’m guessing it might be a frame rate issue. Try specifying the input frame rate and the output frame rate.

For example: ffmpeg -ss 1 -t 10 -r 29.97 -i inputfile.mov -r 29.97 -vocdec copy -acodec copy outputfile.mov

I could be wrong on where I put the -r flags, so you might want to experiment, or maybe someone else can offer a suggestion. I think that -r before the -i flag tells ffmpeg that the incoming file will be treated as 29.97fps and the -r flag after the -i flag tells ffmpeg that the new file will be encoded at 29.97fps. I also know there’s some sort of “force frame rate” option as well, but I’ve never used it, so I don’t know if it would work for you here.

What frame rate are you using and are all of your video files the same frame rate?
Chad Gilmour
October 12, 2015 at 7:16 pm in reply to: jpeg2000 out of ffmpeg messed up chroma?

Sorry, see below, also here is a .pdf of the output: 9334_untitled.pdf.zip

It did complain about not having global headers, but I’m not sure what that means… “codec for stream 1 does not use global headers but container format requires global headers”

EditBay4:2015 HHAR Finals editbay4$ ffmpeg -t 9 -i HHAR5033H.mov -vcodec libopenjpeg -acodec copy HHAR5033H_jpeg2000ffmpeg.mov ffmpeg version 2.8 Copyright (c) 2000-2015 the FFmpeg developers built with Apple LLVM version 6.0 (clang-600.0.56) (based on LLVM 3.5svn) configuration: --prefix=/usr/local/Cellar/ffmpeg/2.8 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-opencl --enable-libx264 --enable-libmp3lame --enable-libvo-aacenc --enable-libxvid --enable-libfreetype --enable-libvorbis --enable-libvpx --enable-libfaac --enable-libass --enable-ffplay --enable-libfdk-aac --enable-libopus --enable-libquvi --enable-libx265 --enable-libopenjpeg --disable-decoder=jpeg2000 --extra-cflags='-I/usr/local/Cellar/openjpeg/1.5.2_1/include/openjpeg-1.5 ' --enable-nonfree --enable-vda libavutil 54. 31.100 / 54. 31.100 libavcodec 56. 60.100 / 56. 60.100 libavformat 56. 40.101 / 56. 40.101 libavdevice 56. 4.100 / 56. 4.100 libavfilter 5. 40.101 / 5. 40.101 libavresample 2. 1. 0 / 2. 1. 0 libswscale 3. 1.101 / 3. 1.101 libswresample 1. 2.101 / 1. 2.101 libpostproc 53. 3.100 / 53. 3.100 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'HHAR5033H.mov': Metadata: major_brand : qt minor_version : 537199360 compatible_brands: qt creation_time : 2015-06-10 20:49:44 Duration: 00:00:37.04, start: 0.000000, bitrate: 134507 kb/s Stream #0:0(eng): Video: prores (apcn / 0x6E637061), yuv422p10le(bt709), 1920x1080, 132745 kb/s, SAR 1:1 DAR 16:9, 29.97 fps, 29.97 tbr, 30k tbn, 30k tbc (default) Metadata: creation_time : 2015-06-10 20:49:44 handler_name : Apple Alias Data Handler encoder : Apple ProRes 422 timecode : 00:00:00;00 Stream #0:1(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, stereo, s16, 1536 kb/s (default) Metadata: creation_time : 2015-06-10 20:49:44 handler_name : Apple Alias Data Handler timecode : 00:00:00;00 Stream #0:2(eng): Data: none (tmcd / 0x64636D74) (default) Metadata: creation_time : 2015-06-10 20:49:44 handler_name : Apple Alias Data Handler timecode : 00:00:00;00 [mov @ 0x7fe2c2007200] Codec for stream 1 does not use global headers but container format requires global headers Output #0, mov, to 'HHAR5033H_jpeg2000ffmpeg.mov': Metadata: major_brand : qt minor_version : 537199360 compatible_brands: qt encoder : Lavf56.40.101 Stream #0:0(eng): Video: jpeg2000 (libopenjpeg) (mjp2 / 0x32706A6D), yuv422p10le, 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 29.97 fps, 30k tbn, 29.97 tbc (default) Metadata: creation_time : 2015-06-10 20:49:44 handler_name : Apple Alias Data Handler timecode : 00:00:00;00 encoder : Lavc56.60.100 libopenjpeg Stream #0:1(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, stereo, 1536 kb/s (default) Metadata: creation_time : 2015-06-10 20:49:44 handler_name : Apple Alias Data Handler timecode : 00:00:00;00 Stream mapping: Stream #0:0 -> #0:0 (prores (native) -> jpeg2000 (libopenjpeg)) Stream #0:1 -> #0:1 (copy) Press [q] to stop, [?] for help frame= 270 fps=5.6 q=-0.0 Lsize= 403929kB time=00:00:09.00 bitrate=367298.0kbits/s video:402232kB audio:1689kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.001903% EditBay4:2015 HHAR Finals editbay4$
Chad Gilmour
October 12, 2015 at 6:59 pm in reply to: Batch trim video files

Sorry, I don’t use the “-t” flag much, I didn’t realize it took the other flags into consideration.
Chad Gilmour
October 12, 2015 at 6:56 pm in reply to: jpeg2000 out of ffmpeg messed up chroma?

ffmpeg -y -ss 7.03 -i “%s” -r 24 -pix_fmt yuv422p -vcodec libopenjpeg -pix_fmt yuv422p -acodec copy “%s”

i’ve also tried ffmpeg -i inputfile.mov -vcodec openjpeg -acodec copy outputfile.mov

Although I also tried it with adobe media encoder and the yielded similar results so it might be something else… I’m running a few more tests to make sure. I’m wondering if I’m just not able to playback a jpeg2000 codec correctly.

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