Failed To Open DV50 in a MOV

1

Quicktime file is DV50 in a MOV container, created by Blackmagic’s Media Express. Openshot and VLC plays it fine. Kdenlive says can’t open. I can use mkvtoolnix to put it in a MKV container, but then it loses interlacing metadata.

MediaInfo’s info:
Format : MPEG-4
Commercial name : DVCPRO 50
Format profile : QuickTime
Codec ID : qt 2005.03 (qt )
File size : 26.2 GiB
Duration : 1 h 2 min
Overall bit rate : 60.3 Mb/s
Frame rate : 29.970 FPS
Encoded date : 2024-11-17 00:56:11 UTC
Tagged date : 2024-11-17 00:56:11 UTC
Writing library : Apple QuickTime
TIM : 00:00:00;00
TSC : 30000
TSZ : 1001

Video
ID : 1
Format : DV
Commercial name : DVCPRO 50
Codec ID : dv5n
Duration : 1 h 2 min
Bit rate mode : Constant
Bit rate : 48.8 Mb/s
Width : 720 pixels
Height : 480 pixels
Display aspect ratio : 4:3
Frame rate mode : Constant
Frame rate : 29.970 (30000/1001) FPS
Original frame rate : 29.970 (29970/1000) FPS
Standard : NTSC
Color space : YUV
Chroma subsampling : 4:2:2
Bit depth : 8 bits
Scan type : Interlaced
Scan type, store method : Interleaved fields
Scan order : Bottom Field First
Compression mode : Lossy
Bits/(Pixel*Frame) : 4.715
Stream size : 21.2 GiB (81%)
Language : English
Encoded date : 2024-11-17 00:56:11 UTC
Tagged date : 2024-11-17 00:56:11 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 : in24
Duration : 1 h 2 min
Bit rate mode : Constant
Bit rate : 2 304 kb/s
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 48.0 kHz
Bit depth : 24 bits
Stream size : 1.00 GiB (4%)
Language : English
Encoded date : 2024-11-17 00:56:11 UTC
Tagged date : 2024-11-17 00:56:11 UTC

Other
ID : 3
Type : Time code
Format : QuickTime TC
Duration : 1 h 2 min
Frame rate : 29.970 (30000/1001) FPS
Time code of first frame : 00:00:00;00
Time code of last frame : 01:02:11;12
Time code, stripped : Yes
Title : 001
Language : English
Encoded date : 2024-11-17 00:56:11 UTC
Tagged date : 2024-11-17 00:56:11 UTC

Thank you for your time, and thank you for a great free program!
Timothy Nevonic

2

Try playing it with the ffplay command line utility included with Shotcut.

Instead of remuxing with mkvtoolnix, better to simply transmux to raw DV as the AVI and MOV containers are largely redundant:
ffmpeg -i untitled.mov -c copy untitled.dv

Not sure when I will get around to trying to make this kind of file myself with Media Express. I have tested that a regular DV, non-DVCPRO .mov opens opens for me in Shotcut 24.11.17 on Windows.

Also, you can override a video file’s scan mode (“interlacing”) in Shotcut’s Properties.

3

I downloaded a DVCPRO 50 MOV from Examples of files recorded for NLE
and it opens for me

image
image1478×808 258 KB

4

Thank you for such a quick response! The ffmpeg command worked fine, although it complained about the .dv ending, .avi worked fine. I’ve used MOV lots of times before, but something’s obviously changed, probably on the Media Express side.

5

Update…ffmpeg to AVI still loses interlace metadata BUT ffmpeg from MOV to MOV straight copy and it works perfectly. The only difference in MediaInfo info is the three lines TIM, TSC, & TSZ.