[FFmpeg-devel] [PATCH 2/2] fftools/ffmpeg: log skipped initial non-keyframes

[Michael Niedermayer]

On Thu, Jun 06, 2019 at 10:31:45PM +0200, Stephan Hilb wrote:
> If `AV_PKT_FLAG_KEY` stays unset on `pkt->flags`, the output stream
> stays empty with little information about what is going on.
> This change makes it easier to debug the situation for the user who
> could then choose to use the `-copyinkf` option.
> ---
>  fftools/ffmpeg.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/fftools/ffmpeg.c b/fftools/ffmpeg.c
> index 01f04103cf..446439e285 100644
> --- a/fftools/ffmpeg.c
> +++ b/fftools/ffmpeg.c
> @@ -2006,8 +2006,10 @@ static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *p
>      }
>  
>      if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
> -        !ost->copy_initial_nonkeyframes)
> +        !ost->copy_initial_nonkeyframes) {
> +        av_log(NULL, AV_LOG_DEBUG, "skipping initial non-keyframe\n");

This should contain some information so the stream (in case of multiple) can
be identified

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

Modern terrorism, a quick summary: Need oil, start war with country that
has oil, kill hundread thousand in war. Let country fall into chaos,
be surprised about raise of fundamantalists. Drop more bombs, kill more
people, be surprised about them taking revenge and drop even more bombs
and strip your own citizens of their rights and freedoms. to be continued
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