I suppose that’s okay. It’s in the input stream as well after all.
On 20 Aug 2020, 13:19 +0200, Michael Niedermayer <mich...@niedermayer.cc>,
wrote:
> On Wed, Aug 19, 2020 at 09:06:54AM +0200, Peter van der Spek wrote:
> > Since release 4.2, FFmpeg fails to detect the correct streams in an RTMP
> > stream that contains a |RtmpSampleAccess AMF object prior to the
> > onMetaData AMF object. In the debug log it would show "[flv] Unknown
> > type |RtmpSampleAccess".
> >
> > This functionality broke in commit d7638d8dfc3c4ffd0dc18a64937a5a07ed67b354
> > as unknown metadata packets now result in an opaque data stream, and the
> > |RtmpSampleAccess packet was an "unknown" metadata packet type.
> >
> > With this change the RTMP streams are correctly detected when there
> > is a |RtmpSampleAccess object prior to the onMetaData object.
> >
> > Signed-off-by: Peter van der Spek <p.vanders...@bluebillywig.com>
> > ---
> > libavformat/flvdec.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/libavformat/flvdec.c b/libavformat/flvdec.c
> > index 0862273..d480d0b 100644
> > --- a/libavformat/flvdec.c
> > +++ b/libavformat/flvdec.c
> > @@ -715,7 +715,7 @@ static int flv_read_metabody(AVFormatContext *s,
> > int64_t next_pos)
> > if (!strcmp(buffer, "onCaptionInfo"))
> > return TYPE_ONCAPTIONINFO;
> >
> > - if (strcmp(buffer, "onMetaData") && strcmp(buffer, "onCuePoint")) {
> > + if (strcmp(buffer, "onMetaData") && strcmp(buffer, "onCuePoint") &&
> > strcmp(buffer, "|RtmpSampleAccess")) {
> > av_log(s, AV_LOG_DEBUG, "Unknown type %s\n", buffer);
> > return TYPE_UNKNOWN;
> > }
>
> when transcoding this will copy this "|RtmpSampleAccess" thing in the output
> is that intended ?
>
> thx
>
> [...]
> --
> Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB
>
> It is what and why we do it that matters, not just one of them.
>
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