[FFmpeg-devel] [PATCH 3/3] lavc/speedhqdec: Set AV_PICTURE_TYPE_I

Tomas Härdin git at haerdin.se
Mon May 13 09:57:13 EEST 2024


sön 2024-05-12 klockan 01:07 +0200 skrev Tomas Härdin:
> fre 2024-05-10 klockan 14:48 +0200 skrev Andreas Rheinhardt:
> > Tomas Härdin:
> > > ons 2024-05-08 klockan 17:06 -0300 skrev James Almer:
> > > > On 5/8/2024 5:01 PM, Marton Balint wrote:
> > > > > 
> > > > > 
> > > > > On Wed, 8 May 2024, Tomas Härdin wrote:
> > > > > 
> > > > > > 
> > > > > > 
> > > > > 
> > > > > What suprises me is that pict_type and the keyframe flag is
> > > > > not
> > > > > set
> > > > > already for decoding codecs with AV_CODEC_PROP_INTRA_ONLY
> > > > > flag.
> > > > > Is
> > > > > this 
> > > > > intentional or just nobody had the time to set it up to work
> > > > > automatically?
> > > > 
> > > > For audio it's not always the case (See MLP/TrueHD). For video
> > > > it
> > > > might 
> > > > with intra-only codecs, but at least with non intra-only
> > > > codecs,
> > > > an I
> > > > frame is not necessarily a keyframe (See AV1).
> > > 
> > > Yes, IDR frames exist. We're talking about intra-only though.
> > > 
> > > I'll push this on Monday if there are no objections. We can adds
> > > some
> > > logic for always setting key_frame and/or pict_type in the
> > > appropriate
> > > place for intra-only codecs as a separate patch. That would allow
> > > us to
> > > simplify all intra-only codecs as well, which would be nice
> > > 
> > 
> > Already done:
> > https://ffmpeg.org/pipermail/ffmpeg-devel/2024-May/327065.html
> 
> Cool. I'll not bother with this patch then.

Pushed patches 1 and 2

/Tomas


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