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Old 4th June 2019, 14:35   #1  |  Link
wigor1
Registered User
 
Join Date: Mar 2019
Posts: 7
4K TV cannot play 4K H.264

Hi,

If I re-encode 4K video in ffmpeg with default settings to H.264 it plays fine on several 4K TVs.

When I encode 4K video H.264 in my app using ffmpeg on C/C++ this 4K video doesn't play on 4K TVs (LG, Sony, Samsung).

I can't see any significant difference between video files in parameters:

https://www.dropbox.com/s/situh0d6kh...video.zip?dl=0

Problem video on 4K TVs:
Code:
General
Complete name                  : D:\2\4K-TV-test\forum\testvideo\Problem-on-4K-TV.mp4
Format                         : MPEG-4
Format profile                 : Base Media
Codec ID                       : isom (isom/iso2/avc1/mp41)
File size                      : 20.8 MiB
Duration                       : 28 s 29 ms
Overall bit rate               : 6 214 kb/s
Writing application            : Lavf58.20.100

Video
ID                             : 1
Format                         : AVC
Format/Info                    : Advanced Video Codec
Format profile                 : High@L5.2
Format settings, CABAC         : Yes
Format settings, RefFrames     : 5 frames
Codec ID                       : avc1
Codec ID/Info                  : Advanced Video Coding
Duration                       : 28 s 29 ms
Duration_LastFrame             : 17 ms
Bit rate                       : 5 959 kb/s
Nominal bit rate               : 13.0 Mb/s
Width                          : 3 840 pixels
Height                         : 2 160 pixels
Display aspect ratio           : 16:9
Frame rate mode                : Constant
Frame rate                     : 59.940 (59940/1000) FPS
Color space                    : YUV
Chroma subsampling             : 4:2:0
Bit depth                      : 8 bits
Scan type                      : Progressive
Bits/(Pixel*Frame)             : 0.012
Stream size                    : 19.9 MiB (96%)
Writing library                : x264 core 157 r2935 545de2f
Encoding settings              : cabac=1 / ref=5 / deblock=1:0:0 / analyse=0x3:0x113 / me=hex / subme=8 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=2 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=6 / lookahead_threads=1 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=3 / weightb=1 / open_gop=0 / weightp=2 / keyint=250 / keyint_min=25 / scenecut=40 / intra_refresh=0 / rc_lookahead=50 / rc=abr / mbtree=1 / bitrate=13000 / ratetol=1.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00

Audio
ID                             : 2
Format                         : AAC
Format/Info                    : Advanced Audio Codec
Format profile                 : LC
Codec ID                       : 40
Duration                       : 27 s 29 ms
Bit rate mode                  : Constant
Bit rate                       : 256 kb/s
Channel(s)                     : 2 channels
Channel positions              : Front: L R
Sampling rate                  : 44.1 kHz
Frame rate                     : 43.066 FPS (1024 SPF)
Compression mode               : Lossy
Stream size                    : 846 KiB (4%)
Default                        : Yes
Alternate group                : 1
This video plays fine on 4K TV:
Code:
General
Complete name                  : D:\2\4K-TV-test\forum\testvideo\ffmpeg-OK-on-4K-TV.mp4
Format                         : MPEG-4
Format profile                 : Base Media
Codec ID                       : isom (isom/iso2/avc1/mp41)
File size                      : 40.0 MiB
Duration                       : 28 s 12 ms
Overall bit rate               : 12.0 Mb/s
Writing application            : Lavf58.20.100

Video
ID                             : 1
Format                         : AVC
Format/Info                    : Advanced Video Codec
Format profile                 : High@L5.2
Format settings, CABAC         : Yes
Format settings, RefFrames     : 5 frames
Codec ID                       : avc1
Codec ID/Info                  : Advanced Video Coding
Duration                       : 28 s 12 ms
Bit rate                       : 11.9 Mb/s
Nominal bit rate               : 13.0 Mb/s
Width                          : 3 840 pixels
Height                         : 2 160 pixels
Display aspect ratio           : 16:9
Frame rate mode                : Constant
Frame rate                     : 59.940 (59940/1000) FPS
Color space                    : YUV
Chroma subsampling             : 4:2:0
Bit depth                      : 8 bits
Scan type                      : Progressive
Bits/(Pixel*Frame)             : 0.024
Stream size                    : 39.6 MiB (99%)
Writing library                : x264 core 157 r2935 545de2f
Encoding settings              : cabac=1 / ref=5 / deblock=1:0:0 / analyse=0x3:0x113 / me=hex / subme=8 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=2 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=6 / lookahead_threads=1 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=3 / weightb=1 / open_gop=0 / weightp=2 / keyint=250 / keyint_min=25 / scenecut=40 / intra_refresh=0 / rc_lookahead=50 / rc=abr / mbtree=1 / bitrate=13000 / ratetol=1.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00

Audio
ID                             : 2
Format                         : AAC
Format/Info                    : Advanced Audio Codec
Format profile                 : LC
Codec ID                       : 40
Duration                       : 27 s 52 ms
Bit rate mode                  : Constant
Bit rate                       : 129 kb/s
Channel(s)                     : 2 channels
Channel positions              : Front: L R
Sampling rate                  : 44.1 kHz
Frame rate                     : 43.066 FPS (1024 SPF)
Compression mode               : Lossy
Stream size                    : 425 KiB (1%)
Default                        : Yes
Alternate group                : 1
The problem is only with 3840 x 2160 60p video. 30p video plays fine.
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