Thank you Carl!
I will try to explain it a little bit better (my knowledge is quite
limited though).
V210 should be able to store interlaced footage (per line, in one
"frame" see [2]). All odd lines in the "frame" representing one
interlaced frame and all the even another. The source footage is already
in this format, so I basicly need to tell the decoder the footage is
indeed interlaced and which "field" comes first.
Using all the interlaced options mentioned the output looks exactly the
same as the progressive source from the header perspective. Watching the
avi in vlc looks heavily interlaced, meaning both interlaced frame are
shown at the same time and the frame rate is not doubled (or progressive
in other words). If I turn the "anti-interlacing" on, the artifacts
disappear.
So how can I add the header information?
Since the avi container can not store this information, I think the flag
needs to be embedded in the codec header inside the avi... right?
[1]
https://developer.apple.com/library/mac/technotes/tn2162/_index.html#//apple_ref/doc/uid/DTS40013070-CH1-TNTAG8-V210__4_2_2_COMPRESSION_TYPE
[2] http://www.digitalpreservation.gov/formats/fdd/fdd000353.shtml
[3]
http://ffmpeg-users.933282.n4.nabble.com/Forcing-interlaced-handling-td4347858.html
Am 11.06.2014 22:06, schrieb Carl Eugen Hoyos:
Nils Jessen <jessen@...> writes:
Everything works perfectly fine using AV_CODEC_ID_V210
and AV_PIX_FMT_YUV422P10LE writing progressive material,
but I am not able to set the output format to interlaced.
Are you sure that v210 supports interlacing?
Or in other words: Are you worried because
your frames *look* progressive or because
you want to signal to your decoder that
they are interlaced?
In case this is your question: I don't think you can
store fields in v210 (the way it is possible in
h264 and mpeg2 video).
Carl Eugen
_______________________________________________
Libav-user mailing list
[email protected]
http://ffmpeg.org/mailman/listinfo/libav-user
_______________________________________________
Libav-user mailing list
[email protected]
http://ffmpeg.org/mailman/listinfo/libav-user
