[FFmpeg-devel] [PATCH 1/2] avformat/utils: Export coded dimensions unconditionally

Michael Niedermayer michael at niedermayer.cc
Mon Jun 13 12:58:02 CEST 2016


On Mon, Jun 06, 2016 at 09:02:34AM +0200, Hendrik Leppkes wrote:
> On Mon, Jun 6, 2016 at 9:01 AM, Hendrik Leppkes <h.leppkes at gmail.com> wrote:
> > On Sun, Jun 5, 2016 at 5:13 AM, Michael Niedermayer
> > <michael at niedermayer.cc> wrote:
> >> This fixes a API regression
> >> Probably fixes Ticket5451
> >>
> >> Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
> >> ---
> >>  libavformat/utils.c   |    4 ++--
> >>  libavformat/version.h |    2 +-
> >>  2 files changed, 3 insertions(+), 3 deletions(-)
> >>
> >> diff --git a/libavformat/utils.c b/libavformat/utils.c
> >> index ac056c4..7ca0a12 100644
> >> --- a/libavformat/utils.c
> >> +++ b/libavformat/utils.c
> >> @@ -3789,8 +3789,6 @@ FF_DISABLE_DEPRECATION_WARNINGS
> >>              av_codec_set_lowres(st->codec, av_codec_get_lowres(st->internal->avctx));
> >>              st->codec->width = st->internal->avctx->width;
> >>              st->codec->height = st->internal->avctx->height;
> >> -            st->codec->coded_width = st->internal->avctx->coded_width;
> >> -            st->codec->coded_height = st->internal->avctx->coded_height;
> >>          }
> >>
> >>          if (st->codec->codec_tag != MKTAG('t','m','c','d'))
> >> @@ -3807,6 +3805,8 @@ FF_DISABLE_DEPRECATION_WARNINGS
> >>          }
> >>
> >>          // Fields unavailable in AVCodecParameters
> >> +        st->codec->coded_width = st->internal->avctx->coded_width;
> >> +        st->codec->coded_height = st->internal->avctx->coded_height;
> >>          st->codec->properties = st->internal->avctx->properties;
> >>  FF_ENABLE_DEPRECATION_WARNINGS
> >>  #endif
> >> diff --git a/libavformat/version.h b/libavformat/version.h
> >> index c92a23f..2f79b7f 100644
> >> --- a/libavformat/version.h
> >> +++ b/libavformat/version.h
> >> @@ -29,7 +29,7 @@
> >>
> >>  #include "libavutil/version.h"
> >>
> >> -// When bumping major check Ticket5467, 5421 for regressing
> >> +// When bumping major check Ticket5467, 5421, 5451 for regressing
> >>  // Also please add any ticket numbers that you belive might regress here
> >>  #define LIBAVFORMAT_VERSION_MAJOR  57
> >>  #define LIBAVFORMAT_VERSION_MINOR  37
> >> --
> >> 1.7.9.5
> >
> > The ticket in question accesses st->codec to get this field. st->codec
> > is going away, so there is no point in testing this "regression",
> > since they need to update their API usage first for it to even
> > compile.
> > Heck the same thing applies to the other tickets you listed here, all
> > of those access information from st->codec which is going away
> > entirely, so you can't really "test" these cases. Someone would have
> > to update the code to use codecpar first, and while doing this
> > migration they would need to preserve whatever behavior exists today.
> >
> 
> 
> What I forgot to write, patch is otherwise fine, exporting information
> into st->codec that was previously available to avoid regressions for
> people that still use st->codec is OK.

patch applied with some rewording
i will post a patch with unrelated to this ticket rewording of
the note about bumps

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

If you drop bombs on a foreign country and kill a hundred thousand
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"unprovoked inhuman terrorist attacks" and use it to justify dropping
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