d9c23a0d5a
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.
FFmpeg README ------------- 1) Documentation ---------------- * Read the documentation in the doc/ directory. 2) Licensing ------------ * See the LICENSE file.