----- Original Message -----
From: "Carl Eugen Hoyos" <[email protected]>
To: <[email protected]>
Sent: Wednesday, December 11, 2013 6:16 AM
Subject: Re: [Libav-user] packet flag AV_PKT_FLAG_KEY
Don Moir <donmoir@...> writes:
I suppose my only initial expectation long ago was that
AVDISCARD_NONKEY worked as expected. I see its gotten
better in some areas but not in others.
Please provide samples for which AVDISCARD_NONKEY does
not work correctly (but remember that there are valid
H.264 streams for which it correctly discards all frames).
Carl Eugen
All of the theora files I have discard all frames when using AVDISCARD_NONKEY. But these work fine when using AV_PKT_FLAG_KEY
technique for keyframe display.
Heres a sample:
http://sms.pangolin.com/temp/BigBuckBunny.ogv
If you want to open a ticket on it, CC me and I will add other failing samples when I get around to testing it. Keep in mind that
I don't have much interest in AVDISCARD_NONKEY but others will, and will test all the files I have in that regard soon.
This sample CODEC_ID_VP6F seems to completely ignore AVDISCARD_NONKEY and all frames are delivered. Again works fine with
AV_PKT_FLAG_KEY.
http://sms.pangolin.com/temp/20051210-w50s.flv
This sample CODEC_ID_INDEO5 seems to ignore AVDISCARD_NONKEY as well. Works
fine with AV_PKT_FLAG_KEY.
http://sms.pangolin.com/temp/toonumentary-skieth.avi
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