Fixes an assertion failure in vdpau_get_buffer() when -hwaccel auto is used, but hwaccel init fails.
@@ -528,6 +528,7 @@ static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
if (!ist->hwaccel_device)
exit_program(1);
}
+ ist->hwaccel_pix_fmt = AV_PIX_FMT_NONE;
break;
case AVMEDIA_TYPE_AUDIO: