"Non-monotonous DTS in output stream 0:0 This may result in incorrect timestamps in the output file." error
I'm trying to go from .mkv to .mp4 through ffmpeg. Normally I would use
ffmpeg -i $1 -codec copy -strict -2 $2
But on this particular file, I get this error, like, A LOT :
Non-monotonous DTS in output stream 0:0; previous: 49189232, current: 49189232; changing to 49189233. This may result in incorrect timestamps in the output file.
I guess it has something to do with the DTS :
[mp4 @ 0x7f8b14001200] Invalid DTS: 14832 PTS: 13552 in output stream 0:0, replacing by guess
[mp4 @ 0x7f8b14001200] Invalid DTS: 15472 PTS: 12272 in output stream 0:0, replacing by guess
I would not care if the result was ok, but the sound is out of sync, and the video is "stuttering". Feels like everything is out of sync.
I've tried a lot of things, including -async 1 -vsync 1 , but nothing seems to work.
Here's some mediainfo :
Complete name : /Users/petaire/Desktop/CNEWS-2019-07-23_16-00-00h.mkv
Format : Matroska
Format version : Version 2
File size : 1.19 GiB
Movie name : Time-2019-07-23_16:00
Writing application : Tvheadend 4.3-1801~g7f952c2ed
Writing library : Tvheadend Matroska muxer
Original source form : TV
Comment : Time recording
IsTruncated : Yes
DATE_BROADCASTED : 2019-07-23 16:00:00
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4
Format settings : CABAC / 4 Ref Frames
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Codec ID : V_MPEG4/ISO/AVC
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 25.000 fps
Standard : Component
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : MBAFF
Scan type, store method : Interleaved fields
Scan order : Top Field First
Language : English
Default : Yes
Forced : No
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
Audio
ID : 2
Format : E-AC-3
Format/Info : Enhanced AC-3
Commercial name : Dolby Digital Plus
Codec ID : A_EAC3
Bit rate mode : Constant
Bit rate : 128 Kbps
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 48.0 KHz
Frame rate : 31.250 fps (1536 SPF)
Compression mode : Lossy
Delay relative to video : -757ms
Language : French
Service kind : Complete Main
Default : Yes
Forced : No
Text
ID : 3
Format : DVB Subtitle
Codec ID : S_DVBSUB
Codec ID/Info : Picture based subtitle format used on DVBs
Language : French
Default : Yes
Forced : No
Any idea ?