In an effort to ditch the computer for capturing (a thread is coming) I use the BM HyperDeck Shuttle 2 to record from SDI out of the analog capture device, The files are recorded in lossless quicktime because it's the only format the Hyperdeck 2 accepts, I have trouble working with this format, for one MPC-HC doesn't play it albeit VLC does, It writes 16 audio ch even when there is only two active, If I put the file into vdub2 it comes out with 16 audio channels and 32bit float, The output file bitrate is way smaller than the original, Although there was no transcoding done since it was processed @ around 500 frames/sec. I just want the original stereo 24bit track, Any other alternatives to vdub2 or how to get this sorted out?
QT:
Vdub2:Code:General Complete name : D:\Capture0000.mov Format : QuickTime Format/Info : Original Apple specifications File size : 5.45 GiB Duration : 3 min 13 s Overall bit rate : 242 Mb/s Frame rate : 29.970 FPS Encoded date : 2024-10-13 19:55:30 UTC Tagged date : 2024-10-13 19:55:30 UTC Writing library : Apple QuickTime Video ID : 1 Format : YUV Codec ID : v210 Codec ID/Hint : AJA Video Systems Xena Duration : 3 min 13 s Bit rate mode : Constant Bit rate : 224 Mb/s Width : 720 pixels Clean aperture width : 704 pixels Height : 486 pixels Clean aperture height : 480 pixels Display aspect ratio : 4:3 Clean aperture display aspect ratio : 4:3 Frame rate mode : Constant Frame rate : 29.970 (30000/1001) FPS Standard : NTSC Color space : YUV Chroma subsampling : 4:2:2 Bit depth : 10 bits Scan type : Interlaced Scan type, store method : Interleaved fields Scan order : Bottom Field First Compression mode : Lossless Bits/(Pixel*Frame) : 21.333 Stream size : 5.03 GiB (92%) Language : English Encoded date : 2024-10-13 19:55:30 UTC Tagged date : 2024-10-13 19:55:30 UTC Color primaries : BT.601 NTSC Transfer characteristics : BT.709 Matrix coefficients : BT.601 Audio ID : 2 Format : PCM Format settings : Little / Signed Codec ID : lpcm Duration : 3 min 13 s Bit rate mode : Constant Bit rate : 18.4 Mb/s Channel(s) : 16 channels Sampling rate : 48.0 kHz Bit depth : 24 bits Stream size : 425 MiB (8%) Language : English Encoded date : 2024-10-13 19:55:30 UTC Tagged date : 2024-10-13 19:55:30 UTC Other ID : 3 Type : Time code Format : QuickTime TC Duration : 3 min 13 s Frame rate : 29.970 (30000/1001) FPS Time code of first frame : 00:00:00;00 Time code of last frame : 00:03:13;07 Time code, stripped : Yes Language : English Encoded date : 2024-10-13 19:55:30 UTC Tagged date : 2024-10-13 19:55:30 UTC
Code:General Complete name : C:\Users\....\Capture0000.avi Format : AVI Format/Info : Audio Video Interleave Format settings : WaveFormatExtensible File size : 1.75 GiB Duration : 3 min 13 s Overall bit rate : 77.7 Mb/s Frame rate : 29.970 FPS Writing library : VirtualDub2 build 44282/release Video ID : 0 Format : HuffYUV Format version : Version 2 Codec ID : HFYU Duration : 3 min 13 s Bit rate : 53.1 Mb/s Width : 720 pixels Height : 486 pixels Display aspect ratio : 3:2 Frame rate : 29.970 (30000/1001) FPS Standard : NTSC Color space : YUV Chroma subsampling : 4:2:2 Bit depth : 8 bits Scan type : Interlaced Bits/(Pixel*Frame) : 5.063 Stream size : 1.19 GiB (68%) Audio ID : 1 Format : PCM Format profile : Float Codec ID : 00000003-0000-0010-8000-00AA00389B71 Codec ID/Hint : IEEE Duration : 3 min 13 s Bit rate mode : Constant Bit rate : 24.6 Mb/s Channel(s) : 16 channels Channel layout : L R C Lb Rb Cb Ls Rs Tfl Tfc Tfr Tbl Tbc Tbr Sampling rate : 48.0 kHz Bit depth : 32 bits Stream size : 566 MiB (32%) Alignment : Aligned on interleaves Interleave, duration : 33 ms (1.00 video frame) Interleave, preload duration : 500 ms
Try StreamFab Downloader and download from Netflix, Amazon, Youtube! Or Try DVDFab and copy Blu-rays!
+ Reply to Thread
Results 1 to 5 of 5
Thread
-
-
Look forward to your eventual thread. I was planning on doing some testing with a Hyperdeck studio pro (2?) that has component and SDI inputs for a similar sort of capture chain test. I wasn't aware of a "lossless" mode though. My thought would be that you could use whatever program that you do your deinterlacing to also process the audio at the same time, or just process in advance with something like FFMpeg.
There's a similar device, the AJA KiPro that is much less expensive and has basically the same feature set (with SDI and analog component inputs), but maxes out at Apple ProRes 422 HQ which I think is visually lossless, but probably isn't technically lossless. The KiPro has its own audio issues if you use the RCA stereo red/white L/R inputs where it will create two separate mono audio tracks instead of a single stereo track..... So..... without using a linear editor to assign the two tracks to right and left and to allow them to play at the same time, you'll only be able to hear or process one channel if using something like Handbrake to transcode or VLC for playback. I made a post where a workaround for that was found without transcoding the actual video file, granted, it's more Mac focused as far as writing the script, but should be similar on windows for FFMpeg.
https://www.reddit.com/r/ffmpeg/comments/1dfi3fz/creating_one_stereo_track_from_two_mono_tracks_on/
I haven't actually tried feeding the AJA KiPro an SDI signal with audio already embedded, so I'm not sure how it handles that.
The AJA will actually flash a message on screen if it's dropping frames which is an interesting feature I haven't seen elsewhere. I use mine with TBCs that have SDI output, so the only time I really see that message is right at the beginning of the capture sometimes when play is first pressed.
Not sure if that would be helpful for your audio issue, but maybe? Guessing you can combine your two mono tracks into stereo in the same way and then if the rest aren't processed, I assume they'll get discarded in the new output file.
It's unfortunate that QTGMC isn't very Mac friendly, because otherwise the Hyperdecks and AJA products seem like they'd be excellent capture devices and QTGMC is the main thing that's then missing from Mac software.Last edited by aramkolt; 13th Oct 2024 at 19:14.
-
The necessity to ditch the computer for capturing arose from the need to buy another one for just capturing and use my current one for encoding, I've been looking for a way to store the SDI stream into a HDD instead of using an entire computer system because basically that's all what the computer was doing, All the video timing, processing and capturing is done inside the analog to SDI converter. I looked into Aja, DataVideo, Grass Valley and others but each one has its own quirks and limitations, I saw a Black Magic HyperDeck Shuttle 2 on eBay for $70 and I had to have it after reading that it can store the rec.601 SDI stream as is in uncompressed 10bit 4:2:2, But I rushed and updated firmware, so I'm not sure if it had lossless AVI option before and now the update took away lossless AVI and brought lossless quicktime or it was always like that.
Lossless Quicktime is still lossless, but 16 ch audio is annoying to me and haven't found a way to get rid of the extra 14 inactive audio ch. MediaExpress automatically stored only the active audio channels on computer even when it is capable of 16 ch shown on the GUI. So far this is the only quirk with this device, I was having a hard time with formatting the SSD to go with it, but it turns out all I needed to do is format it in exFAT.
Sure I can choose 2ch during the encoding process but sometimes I get asked for lossless files and I would prefer to deliver 2ch stereo 48/24bit instead of 16ch 48/32bit float, from an editing perspective this is the best option but not sure how it will hold in a consumer environment. -
It's smaller because you're re-encoding the video stream with 8bit422 huffyuv . Huffyuv uses lossless compression, but 8bit422 is lossy from a 10bit422 v210 source.
Try "direct stream copy" into AVI container for v210 in AVI . If vdub2 complains, then use video=> uncompressed, and it should be v210 anyways without any quality loss. If you want lossless compression to reduce the filesize for 10bit422 in AVI container, you can use ut video - but the 10bit422 variety is not very compatible with programs except for some ffmpeg based ones . If you use audio => direct stream copy, it should stream copy the audio too as 24bit I'm assuming
You can also try ffmpeg , if cmd works ok for one file, then you can batch it
Code:ffmpeg -i input.mov -c:v copy -c:a copy output.avi
-
I'm ok with 8 bit 4:2:2, I just want 2ch audio instead of 16. I don't think I have v210 listed, how do I get it?
Similar Threads
-
Converting from Lossless-Uncompressed to Lossless-Whatever
By Marvolo in forum Video ConversionReplies: 8Last Post: 8th Feb 2024, 13:20 -
lossless 4.2.0 video to lossless 4.2.2 - any issues?
By spicediver10191 in forum Video ConversionReplies: 21Last Post: 10th Jun 2023, 01:00 -
FFmpeg: Lossless video conversion from AVI to MP4 possible for ALL codecs ?
By pxstein in forum Video ConversionReplies: 1Last Post: 8th Feb 2022, 01:20 -
Quick sanity check: Lossless to lossless encoding HuffYUV to UTVideo
By nicholasserra in forum Video ConversionReplies: 2Last Post: 20th Aug 2020, 11:41 -
FFMPEG - hevc_nvenc & h264_nvenc lossless presets not truly lossless?
By AnomalyDetected in forum Video ConversionReplies: 5Last Post: 27th Oct 2019, 02:24