#3064: Audio drafting out of sync on Samsung TV with ffmpeg created MP4 or MKV
file
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Reporter: ramitbhalla | Owner:
Type: defect | Status: new
Priority: normal | Component:
Version: unspecified | undetermined
Keywords: | Resolution:
Blocking: | Blocked By:
Analyzed by developer: 0 | Reproduced by developer: 0
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Comment (by ramitbhalla):
This problem is only happening when using WTV as a source. what I'm
confused is that ffmpeg is converting (from scratch if I'm right) mpeg2 to
mpeg4, it's creating a whole new file, no copying/remuxing etc. What about
the file being created is dependent upon the source of the video/container
(in this case WTV)? Why is a mp4 file created from a wtv source different
from a wtv file created from any other source?
Regarding the yadif filter, I see your point. I don't know of any way to
"detect" whether the source is interlaced or not. I understand the idet
filter is not reliable and only ends up adding overhead to the processing
time (correct me if I'm wrong here), so just as a safety I apply the yadif
filter to all source files (since applying to a progressive video looks
better than not applying to a interlaced video). Any ideas on what I can
do detect if the source is interlaced?
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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/3064#comment:19>
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