Re: [FFmpeg-devel] [PATCH v1] avformat/imf: fix CPL parsing error handling

[Pierre-Anthony Lemieux <pal@sandflow.com>]

On Tue, Jan 4, 2022 at 4:58 PM Zane van Iperen <zane@zanevaniperen.com> wrote:
>
>
>
> On 4/1/22 16:10, pal@sandflow.com wrote:
> > From: Pierre-Anthony Lemieux <pal@palemieux.com>
> >
> > Signed-off-by: Pierre-Anthony Lemieux <pal@palemieux.com>
> > ---
> >   libavformat/imf_cpl.c | 51 +++++++++++++++++++++++--------------------
> >   1 file changed, 27 insertions(+), 24 deletions(-)
>
> Could you please resend this as two separate commits? One with the change, one
> with the re-indenting? It makes it easier to review (and bisect) in the future.

Ok. Got it. See v2 at:

http://ffmpeg.org/pipermail/ffmpeg-devel/2022-January/290840.html

>
> For reference, the effective change is:
>
> diff --git a/libavformat/imf_cpl.c b/libavformat/imf_cpl.c
> index 28798d3e36..366a1be9e2 100644
> --- a/libavformat/imf_cpl.c
> +++ b/libavformat/imf_cpl.c
> @@ -807,7 +807,9 @@ int ff_imf_parse_cpl(AVIOContext *in, FFIMFCPL **cpl)
>           av_log(NULL, AV_LOG_ERROR, "Cannot read IMF CPL\n");
>           if (ret == 0)
>               ret = AVERROR_INVALIDDATA;
> -    } else {
> +        goto clean_up;
> +    }
> +
>           LIBXML_TEST_VERSION
>
>           filesize = buf.len;
> @@ -817,6 +819,7 @@ int ff_imf_parse_cpl(AVIOContext *in, FFIMFCPL **cpl)
>                      AV_LOG_ERROR,
>                      "XML parsing failed when reading the IMF CPL\n");
>               ret = AVERROR_INVALIDDATA;
> +            goto clean_up;
>           }
>
>           if ((ret = ff_imf_parse_cpl_from_xml_dom(doc, cpl))) {
> @@ -833,8 +836,8 @@ int ff_imf_parse_cpl(AVIOContext *in, FFIMFCPL **cpl)
>           }
>
>           xmlFreeDoc(doc);
> -    }
>
> +clean_up:
>       av_bprint_finalize(&buf, NULL);
>
>       return ret;
>
>
> > +        av_log(NULL,
> > +                AV_LOG_INFO,
> > +                "IMF CPL Id: " FF_IMF_UUID_FORMAT "\n",
> > +                UID_ARG((*cpl)->id_uuid));
> > +    }
> > +
> > +    xmlFreeDoc(doc);
> > +
>
> Trailing whitespace here.
>
>
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