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mxfenc: don't try to write footer without header 

This fixes a crash, when trying to mux h264 into mxf_opatom.

Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
Previous version reviewed-by: tomas.hardin@codemill.se
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Andreas Cadhalpun 2015-03-18 21:57:58 +01:00 committed by Michael Niedermayer
parent c5c09501f9
commit b61cb61ab8
1 changed files with 7 additions and 0 deletions
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7
libavformat/mxfenc.c
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@ -2402,6 +2402,13 @@ static int mxf_write_footer(AVFormatContext *s)
AVIOContext *pb = s->pb;
int err = 0;
if (!mxf->header_written ||
(s->oformat == &ff_mxf_opatom_muxer && !mxf->body_partition_offset)) {
/* reason could be invalid options/not supported codec/out of memory */
err = AVERROR_UNKNOWN;
goto end;
}
mxf->duration = mxf->last_indexed_edit_unit + mxf->edit_units_count;
mxf_write_klv_fill(s);