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vf_transpose: avoid multiple calls to avfilter_draw_slice()
authorStefano Sabatini <stefano.sabatini-lala@poste.it>
Fri, 29 Jul 2011 18:19:04 +0000 (20:19 +0200)
committerStefano Sabatini <stefano.sabatini-lala@poste.it>
Fri, 29 Jul 2011 18:24:44 +0000 (20:24 +0200)
commitd9c23a0d5a56488b146eef17a19a9b47643be333
tree51d017179c9f36d01c6e9b4f983a306b9189fff7
parent2dd2abe391ccf1b9140c6eea95767b5a8c503ddd
vf_transpose: avoid multiple calls to avfilter_draw_slice()

avfilter_draw_slice() is already called in the end_frame() callback,
this avoids multiple calls. This is done by adding a null draw_slice()
callback.

In particular fix crash occurring with -vf transpose=3,hflip, fix trac
issue #371.
libavfilter/vf_transpose.c