[FFmpeg-devel] [PATCH] set AVFrame decode_error_flags in case of decoding error by h264dec

[Amir Z]

Thanks

On Sun, Jul 7, 2019 at 3:38 PM Michael Niedermayer <michael at niedermayer.cc>
wrote:

> On Fri, Jun 21, 2019 at 07:15:17AM -0700, Amir Pauker wrote:
> > set AVFrame decode_error_flags in case h->slice_ctx->er.error_occurred
> is set
> > after the call to ff_h264_execute_decode_slices. This allows the user to
> detect
> > concealed decoding errors in the call to avcodec_receive_frame
> >
> > Signed-off-by: Amir Pauker <amir at livelyvideo.tv>
> > ---
> >  libavcodec/error_resilience.c | 2 ++
> >  libavcodec/h264dec.c          | 5 +++++
> >  2 files changed, 7 insertions(+)
> >
> > diff --git a/libavcodec/error_resilience.c
> b/libavcodec/error_resilience.c
> > index 35d0c60..ca22871 100644
> > --- a/libavcodec/error_resilience.c
> > +++ b/libavcodec/error_resilience.c
> > @@ -1121,6 +1121,8 @@ void ff_er_frame_end(ERContext *s)
> >      av_log(s->avctx, AV_LOG_INFO, "concealing %d DC, %d AC, %d MV
> errors in %c frame\n",
> >             dc_error, ac_error, mv_error,
> av_get_picture_type_char(s->cur_pic.f->pict_type));
> >
> > +    s->cur_pic.f->decode_error_flags |=
> FF_DECODE_ERROR_CONCEALMENT_ACTIVE;
> > +
> >      is_intra_likely = is_intra_more_likely(s);
> >
> >      /* set unknown mb-type to most likely */
> > diff --git a/libavcodec/h264dec.c b/libavcodec/h264dec.c
> > index 837c3b7..8d1bd16 100644
> > --- a/libavcodec/h264dec.c
> > +++ b/libavcodec/h264dec.c
> > @@ -761,6 +761,11 @@ static int decode_nal_units(H264Context *h, const
> uint8_t *buf, int buf_size)
> >      if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
> >          goto end;
> >
> > +    // set decode_error_flags to allow users to detect concealed
> decoding errors
> > +    if ((ret < 0 || h->slice_ctx->er.error_occurred) && h->cur_pic_ptr)
> {
> > +        h->cur_pic_ptr->f->decode_error_flags |=
> FF_DECODE_ERROR_DECODE_SLICES;
> > +    }
> > +
> >      ret = 0;
> >  end:
>
> will split and apply
>
> thx
>
> [...]
> --
> Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB
>
> Whats the most studid thing your enemy could do ? Blow himself up
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