As far as I can tell  FF_DECODE_ERROR_MISSING_REFERENCE is not used
anywhere.

Since the new flag DECODE_ERROR covers also missing reference case  i
thought it will be more appropriate to replace it instead of adding a new
enum value.

Thanks


On Sun, Jun 9, 2019 at 10:15 PM James Almer <jamr...@gmail.com> wrote:

> On 6/10/2019 12:03 AM, 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 <a...@livelyvideo.tv>
> > ---
> >  libavcodec/h264dec.c | 7 +++++++
> >  libavutil/frame.h    | 2 +-
> >  2 files changed, 8 insertions(+), 1 deletion(-)
> >
> > diff --git a/libavcodec/h264dec.c b/libavcodec/h264dec.c
> > index 00d922f..9f038e9 100644
> > --- a/libavcodec/h264dec.c
> > +++ b/libavcodec/h264dec.c
> > @@ -758,6 +758,13 @@ static int decode_nal_units(H264Context *h, const
> uint8_t *buf, int buf_size)
> >      }
> >
> >      ret = ff_h264_execute_decode_slices(h);
> > +
> > +    // 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_ERROR;
> > +    }
> > +
> > +
> >      if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
> >          goto end;
> >
> > diff --git a/libavutil/frame.h b/libavutil/frame.h
> > index e2a2929..ef1ff6b 100644
> > --- a/libavutil/frame.h
> > +++ b/libavutil/frame.h
> > @@ -521,7 +521,7 @@ typedef struct AVFrame {
> >       */
> >      int decode_error_flags;
> >  #define FF_DECODE_ERROR_INVALID_BITSTREAM   1
> > -#define FF_DECODE_ERROR_MISSING_REFERENCE   2
> > +#define FF_DECODE_ERROR_DECODE_ERROR        2
>
> This is an API breaking change. Why are you removing
> FF_DECODE_ERROR_MISSING_REFERENCE if what you want is adding a new flag?
>
> >
> >      /**
> >       * number of audio channels, only used for audio.
> >
>
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