[FFmpeg-trac] #1069(undetermined:new): Canon Powershot playback / conversion
FFmpeg
trac at avcodec.org
Wed Mar 21 21:44:29 CET 2012
#1069: Canon Powershot playback / conversion
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Reporter: lennie | Owner:
Type: defect | Status: new
Priority: normal | Component: undetermined
Version: | Resolution:
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by lennie):
It is difficult to tell how many frames are being shown with the Canon
viewer/editor (it has about 1 second granularity in "seeking" and
"status". I can tell you that the artifacts tend to occur at the start of
videos - but do have one clip where it happens near the end of the clip.
Another clue is that this doesn't happen on many clips. I shot about 1000
clips of 5-20 seconds and only about 4-5 had artifacts like this. I
suspect that the Canon Powershot camera is using some fields/features
which are not supported by ffmpeg/Mplayer as well as Quick time - I was
very surprised when I used the Canon .MOV editor (and exported to an .AVI)
that the video appeared normally (with no artifacts). That is how I got
the DVD authored but want to track down where the error is (and how the
Lead Tools .MOV decoder doesn't have problems). I also have a ticket with
Canon support to see if the problem is on their side but wanted to see
what the Open Source community could do to fix/explain the artifacts.
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1069#comment:7>
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