[FFmpeg-devel] [PATCH] avcodec/dv_profile: maintainer of "dvvideo" module?

[Mark Plomer]

Hello,

is there anyone who maintains the "dvvideo" module, who can review this 
patch and give me some feedback?

Greets Mark

Am 16.01.21 um 14:40 schrieb Mark Plomer:
> Trying to fix https://trac.ffmpeg.org/ticket/8333
>
> Some of my old DV AVI files have the DSF-Flag of frames set to 0, 
> although it is PAL (I think they were rendered with Ulead Media Studio 
> Pro) ... this causes ffmpeg/VLC-player to produce/play corrupted video.
>
> In other players/editors it works fine including:
>
> - VirtualDub
> - Windows Media Player
> - AVCutty
> - Ulead Media Studio Pro (very old)
>
> I had a look at VirtualDub ... there the PAL/NTSC detection is based 
> on the frame rate from AVISTREAMINFO header (dwRate/dwScale) - see 
> https://github.com/Pavuucek/VirtualDub/blob/f47ebd2536f0034b048180d0b9cb9bde0ab10c73/src/VirtualDub/source/VideoSource.cpp#L1211
>
> As I don't know, how to access the AVI header info inside 
> dvvideo_decode_frame()/ff_dv_frame_profile(), I tried another 
> workaround by checking the buf_size against the dv_profile.
>
> It works fine now, but I don't know, if this is really the best 
> solution ...
>
>
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