[FFmpeg-devel] [PATCH v2] ffprobe: Fix memory leak

Nicolas George george at nsup.org
Fri Jun 21 17:26:36 EEST 2019


Derek Buitenhuis (12019-06-21):
> This packet was not necessarily unreferenced.
> 
> Signed-off-by: Derek Buitenhuis <derek.buitenhuis at gmail.com>
> ---
>  fftools/ffprobe.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/fftools/ffprobe.c b/fftools/ffprobe.c
> index 3becb6330e..dac70ba5a1 100644
> --- a/fftools/ffprobe.c
> +++ b/fftools/ffprobe.c
> @@ -2429,6 +2429,8 @@ static int read_interval_packets(WriterContext *w, InputFile *ifile,
>          }
>          av_packet_unref(&pkt);
>      }
> +    av_packet_unref(&pkt);
> +

How can the packet not be unreferenced when the very previous
instruction is av_packet_unref()? All the code paths I see either pass
through the existing av_packet_unref() before reaching the new one or
arrive with a blank packet. Am I missing something?

>      av_init_packet(&pkt);
>      pkt.data = NULL;
>      pkt.size = 0;

Regards,

-- 
  Nicolas George
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