vd_lavc: fix prepare_decoding() failure modes

prepare_decoding() returned a bool that was supposed to tell whether
decoding could work, or if something was fucked. After recent changes to
the decoder loop, this did not work anymore, and caused an endless loop.
Redo it, so it makes more sense. avctx being NULL (software fallback
initialization failed) now signals EOF. hwdec_failed needs to be handled
on send_packet() only, where it probably never happens anyway.

(Who was the idiot who made libavcodec have two entrypoints for
decoding? Oh right, it was me. PEBKAC.)

0 files changed, 0 insertions, 0 deletions