Interlaced videos labeled as progressive

[aslaksonal 0]

I've noticed that when there's a video that's interlaced, the display in the player (Emby theater) shows it as progressive. It's also stored as <scantype>progressive</scantype> in the file info section of the nfo files. Found the discrepancy when trying to identify any interlaced videos in my library after a friend with a really really good display noticed the problem playing an older video I'd given him.

 

al

 

 

[Luke 37049]

Hi, yes the detection of this is coming from ffprobe and it's not perfect. Can you provide a sample video for testing? Thanks.

[aslaksonal 0]

Hi, yes the detection of this is coming from ffprobe and it's not perfect. Can you provide a sample video for testing? Thanks.

Sure - couple of minutes worth, or you need a whole big video file?

[Luke 37049]

If the same thing happens with the sample then the smaller version is fine.

[aslaksonal 0]

Here's a 10 minute segment . . . . 

 

Hmm - attachment isn't there.

Edited July 20, 2019 by aslaksonal

[aslaksonal 0]

Better file size . . . .  said the file was attached in the reply box, but don't see it . . . 

Edited July 20, 2019 by aslaksonal

[Guest asrequested]

Did you click attach file?

[aslaksonal 0]

I did attach . . .  and will now try it again. First time the file was apparently too big. Cut it to under 90mb, now says "you aren't permitted to upload this kind of file". Won't accept an mp4? 

[Guest asrequested]

Zip it

[aslaksonal 0]

One mo time . . . 

 

no error messages for a zip file.  Success?

Man Who Came to Dinner 1941 fragment.zip

Edited July 20, 2019 by aslaksonal

[Guest asrequested]

Yup. Looks like ffprobe isn't getting this correct.

 

Video
ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : High@L4.1
Format settings                          : CABAC / 3 Ref Frames
Format settings, CABAC                   : Yes
Format settings, Reference frames        : 3 frames
Codec ID                                 : avc1
Codec ID/Info                            : Advanced Video Coding
Duration                                 : 5 min 0 s
Bit rate mode                            : Variable
Bit rate                                 : 1 847 kb/s
Maximum bit rate                         : 2 729 kb/s
Width                                    : 1 920 pixels
Height                                   : 1 080 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 29.970 (30000/1001) FPS
Standard                                 : NTSC
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Interlaced
Scan type, store method                  : Separated fields
Scan order                               : Top Field First

[Guest asrequested]

For what it's worth, mpv detects it as interlaced. 

[   0.542][v][auto_profiles] Re-evaluate auto profile Interlaced 
[   0.542][i][auto_profiles] Applying profile Interlaced 
[   0.542][v][cplayer] starting audio playback
[   0.542][v][cplayer] playback restart complete @ 0.000000
[   0.542][d][cplayer] Run command: apply-profile, flags=64, args=[Interlaced]
[   0.542][d][cplayer] Setting option 'deinterlace' = 'yes' (flags = 68)

[Luke 37049]

@ do you have a moment to see what the ffprobe output is? There will be a field_order value in the ffprobe data. thanks.

[Guest asrequested]

I can soon. What do you need me to do?

[Luke 37049]

Just run the ffprobe command line and see what it has for that value in the video stream. thanks.

[Guest asrequested]

Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'man.mp4':

  Metadata:

    major_brand     : isom

    minor_version   : 512

    compatible_brands: isomiso2avc1mp41

    encoder         : VideoReDo (Lavf56.25.101)

  Duration: 00:05:00.07, start: 0.000000, bitrate: 1980 kb/s

    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 1846 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc (default)

    Metadata:

      handler_name    : VideoHandler

    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 125 kb/s (default)

    Metadata:

      handler_name    : SoundHandler

[STREAM]

index=0

codec_name=h264

codec_long_name=H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10

profile=High

codec_type=video

codec_time_base=1001/60000

codec_tag_string=avc1

codec_tag=0x31637661

width=1920

height=1080

coded_width=1920

coded_height=1088

has_b_frames=1

sample_aspect_ratio=1:1

display_aspect_ratio=16:9

pix_fmt=yuv420p

level=41

color_range=tv

color_space=bt709

color_transfer=bt709

color_primaries=bt709

chroma_location=left

field_order=unknown

timecode=N/A

refs=1

is_avc=true

nal_length_size=4

id=N/A

r_frame_rate=30000/1001

avg_frame_rate=30000/1001

time_base=1/90000

start_pts=0

start_time=0.000000

duration_ts=27005979

duration=300.066433

bit_rate=1846569

max_bit_rate=N/A

bits_per_raw_sample=8

nb_frames=8993

nb_read_frames=N/A

nb_read_packets=N/A

DISPOSITION:default=1

DISPOSITION:dub=0

DISPOSITION:original=0

DISPOSITION:comment=0

DISPOSITION:lyrics=0

DISPOSITION:karaoke=0

DISPOSITION:forced=0

DISPOSITION:hearing_impaired=0

DISPOSITION:visual_impaired=0

DISPOSITION:clean_effects=0

DISPOSITION:attached_pic=0

DISPOSITION:timed_thumbnails=0

TAG:language=und

TAG:handler_name=VideoHandler

[/STREAM]