Crashes when post-processing streams decoded with "mpegvideo"
|Reported by:||Warren Black||Owned by:|
|Blocking:||Reproduced by developer:||no|
|Analyzed by developer:||no|
Summary of the bug:
If one attempts to post-process a stream decoded with "mpegvideo.c", you get a hardware access violation because "ff_mpv_export_qp_table" sets "offset" to an odd value and subtracts it from "ref->data", causing that previously-aligned pointer to become odd. That odd pointer is later used as the "QP_store" argument to "pp_postprocess", which casts it to a "uint32_t *" and attempts to dereference it.
How to reproduce:
Attempt to postprocess a stream decoded with "mpegvideo".